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Merge pull request #291 from thaJeztah/bump-swarmkit 

Bump swarmkit and dependencies to 79381d0840be27f8b3f5c667b348a4467d866eeb
This commit is contained in:
Vincent Demeester 2017-07-21 11:07:38 +02:00 committed by GitHub
parent dfbad2bc5a 679ae70241
commit 472ce90624
74 changed files with 8569 additions and 2015 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
vendor.conf
View File

@ -18,10 +18,10 @@ github.com/docker/go-events 18b43f1bc85d9cdd42c05a6cd2d444c7a200a894
github.com/docker/go-units 9e638d38cf6977a37a8ea0078f3ee75a7cdb2dd1
github.com/docker/libtrust 9cbd2a1374f46905c68a4eb3694a130610adc62a
github.com/docker/notary v0.4.2
github.com/docker/swarmkit 1a3e510517be82d18ac04380b5f71eddf06c2fc0
github.com/docker/swarmkit 79381d0840be27f8b3f5c667b348a4467d866eeb
github.com/flynn-archive/go-shlex 3f9db97f856818214da2e1057f8ad84803971cff
github.com/gogo/protobuf 7efa791bd276fd4db00867cbd982b552627c24cb
github.com/golang/protobuf 8ee79997227bf9b34611aee7946ae64735e6fd93
github.com/golang/protobuf 7a211bcf3bce0e3f1d74f9894916e6f116ae83b4
github.com/gorilla/context v1.1
github.com/gorilla/mux v1.1
github.com/inconshreveable/mousetrap 76626ae9c91c4f2a10f34cad8ce83ea42c93bb75
@ -43,11 +43,12 @@ github.com/xeipuuv/gojsonpointer e0fe6f68307607d540ed8eac07a342c33fa1b54a
github.com/xeipuuv/gojsonreference e02fc20de94c78484cd5ffb007f8af96be030a45
github.com/xeipuuv/gojsonschema 93e72a773fade158921402d6a24c819b48aba29d
golang.org/x/crypto 3fbbcd23f1cb824e69491a5930cfeff09b12f4d2
golang.org/x/net c427ad74c6d7a814201695e9ffde0c5d400a7674
golang.org/x/net 7dcfb8076726a3fdd9353b6b8a1f1b6be6811bd6
golang.org/x/sys 8f0908ab3b2457e2e15403d3697c9ef5cb4b57a9
golang.org/x/text f72d8390a633d5dfb0cc84043294db9f6c935756
golang.org/x/time a4bde12657593d5e90d0533a3e4fd95e635124cb
google.golang.org/grpc v1.0.4
google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944
google.golang.org/grpc v1.3.0
gopkg.in/yaml.v2 4c78c975fe7c825c6d1466c42be594d1d6f3aba6
github.com/tonistiigi/fsutil 0ac4c11b053b9c5c7c47558f81f96c7100ce50fb
github.com/stevvooe/continuity cd7a8e21e2b6f84799f5dd4b65faf49c8d3ee02d

248
vendor/github.com/docker/swarmkit/api/objects.pb.go generated vendored
View File

@ -198,7 +198,8 @@ type Task struct {
// such a cluster default or policy-based value.
//
// If not present, the daemon's default will be used.
LogDriver *Driver `protobuf:"bytes,13,opt,name=log_driver,json=logDriver" json:"log_driver,omitempty"`
LogDriver *Driver `protobuf:"bytes,13,opt,name=log_driver,json=logDriver" json:"log_driver,omitempty"`
AssignedGenericResources []*GenericResource `protobuf:"bytes,15,rep,name=assigned_generic_resources,json=assignedGenericResources" json:"assigned_generic_resources,omitempty"`
}
func (m *Task) Reset() { *m = Task{} }
@ -529,6 +530,14 @@ func (m *Task) CopyFrom(src interface{}) {
m.LogDriver = &Driver{}
github_com_docker_swarmkit_api_deepcopy.Copy(m.LogDriver, o.LogDriver)
}
if o.AssignedGenericResources != nil {
m.AssignedGenericResources = make([]*GenericResource, len(o.AssignedGenericResources))
for i := range m.AssignedGenericResources {
m.AssignedGenericResources[i] = &GenericResource{}
github_com_docker_swarmkit_api_deepcopy.Copy(m.AssignedGenericResources[i], o.AssignedGenericResources[i])
}
}
}
func (m *NetworkAttachment) Copy() *NetworkAttachment {
@ -1140,6 +1149,18 @@ func (m *Task) MarshalTo(dAtA []byte) (int, error) {
}
i += n26
}
if len(m.AssignedGenericResources) > 0 {
for _, msg := range m.AssignedGenericResources {
dAtA[i] = 0x7a
i++
i = encodeVarintObjects(dAtA, i, uint64(msg.Size()))
n, err := msg.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n
}
}
return i, nil
}
@ -1771,6 +1792,12 @@ func (m *Task) Size() (n int) {
l = m.SpecVersion.Size()
n += 1 + l + sovObjects(uint64(l))
}
if len(m.AssignedGenericResources) > 0 {
for _, e := range m.AssignedGenericResources {
l = e.Size()
n += 1 + l + sovObjects(uint64(l))
}
}
return n
}
@ -4419,6 +4446,7 @@ func (this *Task) String() string {
`Endpoint:` + strings.Replace(fmt.Sprintf("%v", this.Endpoint), "Endpoint", "Endpoint", 1) + `,`,
`LogDriver:` + strings.Replace(fmt.Sprintf("%v", this.LogDriver), "Driver", "Driver", 1) + `,`,
`SpecVersion:` + strings.Replace(fmt.Sprintf("%v", this.SpecVersion), "Version", "Version", 1) + `,`,
`AssignedGenericResources:` + strings.Replace(fmt.Sprintf("%v", this.AssignedGenericResources), "GenericResource", "GenericResource", 1) + `,`,
`}`,
}, "")
return s
@ -6001,6 +6029,37 @@ func (m *Task) Unmarshal(dAtA []byte) error {
return err
}
iNdEx = postIndex
case 15:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field AssignedGenericResources", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowObjects
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthObjects
}
postIndex := iNdEx + msglen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.AssignedGenericResources = append(m.AssignedGenericResources, &GenericResource{})
if err := m.AssignedGenericResources[len(m.AssignedGenericResources)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipObjects(dAtA[iNdEx:])
@ -7630,96 +7689,99 @@ var (
func init() { proto.RegisterFile("objects.proto", fileDescriptorObjects) }
var fileDescriptorObjects = []byte{
// 1451 bytes of a gzipped FileDescriptorProto
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}

2
vendor/github.com/docker/swarmkit/api/objects.proto generated vendored
View File

@ -239,6 +239,8 @@ message Task {
//
// If not present, the daemon's default will be used.
Driver log_driver = 13;
repeated GenericResource assigned_generic_resources = 15;
}
// NetworkAttachment specifies the network parameters of attachment to

554
vendor/github.com/docker/swarmkit/api/specs.pb.go generated vendored
View File

@ -642,16 +642,94 @@ type NetworkSpec struct {
// swarm internally created only and it was identified by the name
// "ingress" and the label "com.docker.swarm.internal": "true".
Ingress bool `protobuf:"varint,7,opt,name=ingress,proto3" json:"ingress,omitempty"`
// ConfigFrom indicates that the network specific configuration
// for this network will be provided via another network, locally
// on the node where this network is being plumbed.
ConfigFrom string `protobuf:"bytes,8,opt,name=config_from,json=configFrom,proto3" json:"config_from,omitempty"`
// ConfigFrom is the source of the configuration for this network.
//
// Types that are valid to be assigned to ConfigFrom:
// *NetworkSpec_Network
ConfigFrom isNetworkSpec_ConfigFrom `protobuf_oneof:"config_from"`
}
func (m *NetworkSpec) Reset() { *m = NetworkSpec{} }
func (*NetworkSpec) ProtoMessage() {}
func (*NetworkSpec) Descriptor() ([]byte, []int) { return fileDescriptorSpecs, []int{9} }
type isNetworkSpec_ConfigFrom interface {
isNetworkSpec_ConfigFrom()
MarshalTo([]byte) (int, error)
Size() int
}
type NetworkSpec_Network struct {
Network string `protobuf:"bytes,8,opt,name=network,proto3,oneof"`
}
func (*NetworkSpec_Network) isNetworkSpec_ConfigFrom() {}
func (m *NetworkSpec) GetConfigFrom() isNetworkSpec_ConfigFrom {
if m != nil {
return m.ConfigFrom
}
return nil
}
func (m *NetworkSpec) GetNetwork() string {
if x, ok := m.GetConfigFrom().(*NetworkSpec_Network); ok {
return x.Network
}
return ""
}
// XXX_OneofFuncs is for the internal use of the proto package.
func (*NetworkSpec) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
return _NetworkSpec_OneofMarshaler, _NetworkSpec_OneofUnmarshaler, _NetworkSpec_OneofSizer, []interface{}{
(*NetworkSpec_Network)(nil),
}
}
func _NetworkSpec_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
m := msg.(*NetworkSpec)
// config_from
switch x := m.ConfigFrom.(type) {
case *NetworkSpec_Network:
_ = b.EncodeVarint(8<<3 | proto.WireBytes)
_ = b.EncodeStringBytes(x.Network)
case nil:
default:
return fmt.Errorf("NetworkSpec.ConfigFrom has unexpected type %T", x)
}
return nil
}
func _NetworkSpec_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
m := msg.(*NetworkSpec)
switch tag {
case 8: // config_from.network
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
x, err := b.DecodeStringBytes()
m.ConfigFrom = &NetworkSpec_Network{x}
return true, err
default:
return false, nil
}
}
func _NetworkSpec_OneofSizer(msg proto.Message) (n int) {
m := msg.(*NetworkSpec)
// config_from
switch x := m.ConfigFrom.(type) {
case *NetworkSpec_Network:
n += proto.SizeVarint(8<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(len(x.Network)))
n += len(x.Network)
case nil:
default:
panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
}
return n
}
// ClusterSpec specifies global cluster settings.
type ClusterSpec struct {
Annotations Annotations `protobuf:"bytes,1,opt,name=annotations" json:"annotations"`
@ -682,6 +760,12 @@ type SecretSpec struct {
Annotations Annotations `protobuf:"bytes,1,opt,name=annotations" json:"annotations"`
// Data is the secret payload - the maximum size is 500KB (that is, 500*1024 bytes)
Data []byte `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
// Templating controls whether and how to evaluate the secret payload as
// a template. If it is not set, no templating is used.
//
// The currently recognized values are:
// - golang: Go templating
Templating *Driver `protobuf:"bytes,3,opt,name=templating" json:"templating,omitempty"`
}
func (m *SecretSpec) Reset() { *m = SecretSpec{} }
@ -695,6 +779,12 @@ type ConfigSpec struct {
// TODO(aaronl): Do we want to revise this to include multiple payloads in a single
// ConfigSpec? Define this to be a tar? etc...
Data []byte `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
// Templating controls whether and how to evaluate the secret payload as
// a template. If it is not set, no templating is used.
//
// The currently recognized values are:
// - golang: Go templating
Templating *Driver `protobuf:"bytes,3,opt,name=templating" json:"templating,omitempty"`
}
func (m *ConfigSpec) Reset() { *m = ConfigSpec{} }
@ -1093,6 +1183,16 @@ func (m *NetworkSpec) CopyFrom(src interface{}) {
m.IPAM = &IPAMOptions{}
github_com_docker_swarmkit_api_deepcopy.Copy(m.IPAM, o.IPAM)
}
if o.ConfigFrom != nil {
switch o.ConfigFrom.(type) {
case *NetworkSpec_Network:
v := NetworkSpec_Network{
Network: o.GetNetwork(),
}
m.ConfigFrom = &v
}
}
}
func (m *ClusterSpec) Copy() *ClusterSpec {
@ -1136,6 +1236,10 @@ func (m *SecretSpec) CopyFrom(src interface{}) {
m.Data = make([]byte, len(o.Data))
copy(m.Data, o.Data)
}
if o.Templating != nil {
m.Templating = &Driver{}
github_com_docker_swarmkit_api_deepcopy.Copy(m.Templating, o.Templating)
}
}
func (m *ConfigSpec) Copy() *ConfigSpec {
@ -1156,6 +1260,10 @@ func (m *ConfigSpec) CopyFrom(src interface{}) {
m.Data = make([]byte, len(o.Data))
copy(m.Data, o.Data)
}
if o.Templating != nil {
m.Templating = &Driver{}
github_com_docker_swarmkit_api_deepcopy.Copy(m.Templating, o.Templating)
}
}
func (m *NodeSpec) Marshal() (dAtA []byte, err error) {
@ -2010,15 +2118,24 @@ func (m *NetworkSpec) MarshalTo(dAtA []byte) (int, error) {
}
i++
}
if len(m.ConfigFrom) > 0 {
dAtA[i] = 0x42
i++
i = encodeVarintSpecs(dAtA, i, uint64(len(m.ConfigFrom)))
i += copy(dAtA[i:], m.ConfigFrom)
if m.ConfigFrom != nil {
nn27, err := m.ConfigFrom.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += nn27
}
return i, nil
}
func (m *NetworkSpec_Network) MarshalTo(dAtA []byte) (int, error) {
i := 0
dAtA[i] = 0x42
i++
i = encodeVarintSpecs(dAtA, i, uint64(len(m.Network)))
i += copy(dAtA[i:], m.Network)
return i, nil
}
func (m *ClusterSpec) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
@ -2037,67 +2154,67 @@ func (m *ClusterSpec) MarshalTo(dAtA []byte) (int, error) {
dAtA[i] = 0xa
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.Annotations.Size()))
n27, err := m.Annotations.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n27
dAtA[i] = 0x12
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.AcceptancePolicy.Size()))
n28, err := m.AcceptancePolicy.MarshalTo(dAtA[i:])
n28, err := m.Annotations.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n28
dAtA[i] = 0x1a
dAtA[i] = 0x12
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.Orchestration.Size()))
n29, err := m.Orchestration.MarshalTo(dAtA[i:])
i = encodeVarintSpecs(dAtA, i, uint64(m.AcceptancePolicy.Size()))
n29, err := m.AcceptancePolicy.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n29
dAtA[i] = 0x22
dAtA[i] = 0x1a
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.Raft.Size()))
n30, err := m.Raft.MarshalTo(dAtA[i:])
i = encodeVarintSpecs(dAtA, i, uint64(m.Orchestration.Size()))
n30, err := m.Orchestration.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n30
dAtA[i] = 0x2a
dAtA[i] = 0x22
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.Dispatcher.Size()))
n31, err := m.Dispatcher.MarshalTo(dAtA[i:])
i = encodeVarintSpecs(dAtA, i, uint64(m.Raft.Size()))
n31, err := m.Raft.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n31
dAtA[i] = 0x32
dAtA[i] = 0x2a
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.CAConfig.Size()))
n32, err := m.CAConfig.MarshalTo(dAtA[i:])
i = encodeVarintSpecs(dAtA, i, uint64(m.Dispatcher.Size()))
n32, err := m.Dispatcher.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n32
dAtA[i] = 0x3a
dAtA[i] = 0x32
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.TaskDefaults.Size()))
n33, err := m.TaskDefaults.MarshalTo(dAtA[i:])
i = encodeVarintSpecs(dAtA, i, uint64(m.CAConfig.Size()))
n33, err := m.CAConfig.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n33
dAtA[i] = 0x42
dAtA[i] = 0x3a
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.EncryptionConfig.Size()))
n34, err := m.EncryptionConfig.MarshalTo(dAtA[i:])
i = encodeVarintSpecs(dAtA, i, uint64(m.TaskDefaults.Size()))
n34, err := m.TaskDefaults.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n34
dAtA[i] = 0x42
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.EncryptionConfig.Size()))
n35, err := m.EncryptionConfig.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n35
return i, nil
}
@ -2119,17 +2236,27 @@ func (m *SecretSpec) MarshalTo(dAtA []byte) (int, error) {
dAtA[i] = 0xa
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.Annotations.Size()))
n35, err := m.Annotations.MarshalTo(dAtA[i:])
n36, err := m.Annotations.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n35
i += n36
if len(m.Data) > 0 {
dAtA[i] = 0x12
i++
i = encodeVarintSpecs(dAtA, i, uint64(len(m.Data)))
i += copy(dAtA[i:], m.Data)
}
if m.Templating != nil {
dAtA[i] = 0x1a
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.Templating.Size()))
n37, err := m.Templating.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n37
}
return i, nil
}
@ -2151,17 +2278,27 @@ func (m *ConfigSpec) MarshalTo(dAtA []byte) (int, error) {
dAtA[i] = 0xa
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.Annotations.Size()))
n36, err := m.Annotations.MarshalTo(dAtA[i:])
n38, err := m.Annotations.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n36
i += n38
if len(m.Data) > 0 {
dAtA[i] = 0x12
i++
i = encodeVarintSpecs(dAtA, i, uint64(len(m.Data)))
i += copy(dAtA[i:], m.Data)
}
if m.Templating != nil {
dAtA[i] = 0x1a
i++
i = encodeVarintSpecs(dAtA, i, uint64(m.Templating.Size()))
n39, err := m.Templating.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n39
}
return i, nil
}
@ -2544,13 +2681,19 @@ func (m *NetworkSpec) Size() (n int) {
if m.Ingress {
n += 2
}
l = len(m.ConfigFrom)
if l > 0 {
n += 1 + l + sovSpecs(uint64(l))
if m.ConfigFrom != nil {
n += m.ConfigFrom.Size()
}
return n
}
func (m *NetworkSpec_Network) Size() (n int) {
var l int
_ = l
l = len(m.Network)
n += 1 + l + sovSpecs(uint64(l))
return n
}
func (m *ClusterSpec) Size() (n int) {
var l int
_ = l
@ -2582,6 +2725,10 @@ func (m *SecretSpec) Size() (n int) {
if l > 0 {
n += 1 + l + sovSpecs(uint64(l))
}
if m.Templating != nil {
l = m.Templating.Size()
n += 1 + l + sovSpecs(uint64(l))
}
return n
}
@ -2594,6 +2741,10 @@ func (m *ConfigSpec) Size() (n int) {
if l > 0 {
n += 1 + l + sovSpecs(uint64(l))
}
if m.Templating != nil {
l = m.Templating.Size()
n += 1 + l + sovSpecs(uint64(l))
}
return n
}
@ -2836,6 +2987,16 @@ func (this *NetworkSpec) String() string {
}, "")
return s
}
func (this *NetworkSpec_Network) String() string {
if this == nil {
return "nil"
}
s := strings.Join([]string{`&NetworkSpec_Network{`,
`Network:` + fmt.Sprintf("%v", this.Network) + `,`,
`}`,
}, "")
return s
}
func (this *ClusterSpec) String() string {
if this == nil {
return "nil"
@ -2860,6 +3021,7 @@ func (this *SecretSpec) String() string {
s := strings.Join([]string{`&SecretSpec{`,
`Annotations:` + strings.Replace(strings.Replace(this.Annotations.String(), "Annotations", "Annotations", 1), `&`, ``, 1) + `,`,
`Data:` + fmt.Sprintf("%v", this.Data) + `,`,
`Templating:` + strings.Replace(fmt.Sprintf("%v", this.Templating), "Driver", "Driver", 1) + `,`,
`}`,
}, "")
return s
@ -2871,6 +3033,7 @@ func (this *ConfigSpec) String() string {
s := strings.Join([]string{`&ConfigSpec{`,
`Annotations:` + strings.Replace(strings.Replace(this.Annotations.String(), "Annotations", "Annotations", 1), `&`, ``, 1) + `,`,
`Data:` + fmt.Sprintf("%v", this.Data) + `,`,
`Templating:` + strings.Replace(fmt.Sprintf("%v", this.Templating), "Driver", "Driver", 1) + `,`,
`}`,
}, "")
return s
@ -5259,7 +5422,7 @@ func (m *NetworkSpec) Unmarshal(dAtA []byte) error {
m.Ingress = bool(v != 0)
case 8:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field ConfigFrom", wireType)
return fmt.Errorf("proto: wrong wireType = %d for field Network", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
@ -5284,7 +5447,7 @@ func (m *NetworkSpec) Unmarshal(dAtA []byte) error {
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.ConfigFrom = string(dAtA[iNdEx:postIndex])
m.ConfigFrom = &NetworkSpec_Network{string(dAtA[iNdEx:postIndex])}
iNdEx = postIndex
default:
iNdEx = preIndex
@ -5687,6 +5850,39 @@ func (m *SecretSpec) Unmarshal(dAtA []byte) error {
m.Data = []byte{}
}
iNdEx = postIndex
case 3:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Templating", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowSpecs
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthSpecs
}
postIndex := iNdEx + msglen
if postIndex > l {
return io.ErrUnexpectedEOF
}
if m.Templating == nil {
m.Templating = &Driver{}
}
if err := m.Templating.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipSpecs(dAtA[iNdEx:])
@ -5798,6 +5994,39 @@ func (m *ConfigSpec) Unmarshal(dAtA []byte) error {
m.Data = []byte{}
}
iNdEx = postIndex
case 3:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Templating", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowSpecs
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthSpecs
}
postIndex := iNdEx + msglen
if postIndex > l {
return io.ErrUnexpectedEOF
}
if m.Templating == nil {
m.Templating = &Driver{}
}
if err := m.Templating.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipSpecs(dAtA[iNdEx:])
@ -5927,121 +6156,122 @@ var (
func init() { proto.RegisterFile("specs.proto", fileDescriptorSpecs) }
var fileDescriptorSpecs = []byte{
// 1844 bytes of a gzipped FileDescriptorProto
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}

26
vendor/github.com/docker/swarmkit/api/specs.proto generated vendored
View File

@ -342,10 +342,14 @@ message NetworkSpec {
// "ingress" and the label "com.docker.swarm.internal": "true".
bool ingress = 7;
// ConfigFrom indicates that the network specific configuration
// for this network will be provided via another network, locally
// on the node where this network is being plumbed.
string config_from = 8;
// ConfigFrom is the source of the configuration for this network.
oneof config_from {
// Network is the name of a network that provides the network
// specific configuration for this network, locally on the node
// where this network is being plumbed.
string network = 8;
}
}
// ClusterSpec specifies global cluster settings.
@ -382,6 +386,13 @@ message SecretSpec {
// Data is the secret payload - the maximum size is 500KB (that is, 500*1024 bytes)
bytes data = 2;
// Templating controls whether and how to evaluate the secret payload as
// a template. If it is not set, no templating is used.
//
// The currently recognized values are:
// - golang: Go templating
Driver templating = 3;
}
// ConfigSpec specifies user-provided configuration files.
@ -392,4 +403,11 @@ message ConfigSpec {
// TODO(aaronl): Do we want to revise this to include multiple payloads in a single
// ConfigSpec? Define this to be a tar? etc...
bytes data = 2;
// Templating controls whether and how to evaluate the secret payload as
// a template. If it is not set, no templating is used.
//
// The currently recognized values are:
// - golang: Go templating
Driver templating = 3;
}

1714
vendor/github.com/docker/swarmkit/api/types.pb.go generated vendored
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File diff suppressed because it is too large Load Diff

20
vendor/github.com/docker/swarmkit/api/types.proto generated vendored
View File

@ -30,12 +30,32 @@ message Annotations {
repeated IndexEntry indices = 4 [(gogoproto.nullable) = false];
}
message GenericString {
string kind = 1;
string value = 2;
}
message GenericDiscrete {
string kind = 1;
int64 value = 2;
}
message GenericResource {
oneof resource {
GenericString str = 1;
GenericDiscrete discrete = 2;
}
}
message Resources {
// Amount of CPUs (e.g. 2000000000 = 2 CPU cores)
int64 nano_cpus = 1 [(gogoproto.customname) = "NanoCPUs"];
// Amount of memory in bytes.
int64 memory_bytes = 2;
// User specified resource (e.g: bananas=2;apple={red,yellow,green})
repeated GenericResource generic = 3;
}
message ResourceRequirements {

20
vendor/github.com/docker/swarmkit/vendor.conf generated vendored
View File

@ -1,8 +1,9 @@
# grpc and protobuf
google.golang.org/grpc v1.0.4
google.golang.org/grpc v1.3.0
github.com/gogo/protobuf v0.4
github.com/golang/protobuf 8ee79997227bf9b34611aee7946ae64735e6fd93
github.com/golang/protobuf 7a211bcf3bce0e3f1d74f9894916e6f116ae83b4
github.com/matttproud/golang_protobuf_extensions v1.0.0
google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944
# metrics
github.com/grpc-ecosystem/go-grpc-prometheus 6b7015e65d366bf3f19b2b2a000a831940f0f7e0
@ -18,15 +19,24 @@ github.com/prometheus/common ebdfc6da46522d58825777cf1f90490a5b1ef1d8
github.com/prometheus/procfs abf152e5f3e97f2fafac028d2cc06c1feb87ffa5
github.com/docker/distribution b38e5838b7b2f2ad48e06ec4b500011976080621
github.com/docker/docker 9585d0ea19859c5f145bc763d474190447b91c7b
github.com/docker/docker 77c9728847358a3ed3581d828fb0753017e1afd3
github.com/docker/go-connections 34b5052da6b11e27f5f2e357b38b571ddddd3928
github.com/docker/go-events 37d35add5005832485c0225ec870121b78fcff1c
github.com/docker/go-units 954fed01cc617c55d838fa2230073f2cb17386c8
github.com/docker/libkv 9fd56606e928ff1f309808f5d5a0b7a2ef73f9a8
github.com/docker/libnetwork 37e20af882e13dd01ade3658b7aabdae3412118b
github.com/docker/libtrust 9cbd2a1374f46905c68a4eb3694a130610adc62a
github.com/opencontainers/runc 8e8d01d38d7b4fb0a35bf89b72bc3e18c98882d7
github.com/opencontainers/runc b6b70e53451794e8333e9b602cc096b47a20bd0f
github.com/opencontainers/go-digest a6d0ee40d4207ea02364bd3b9e8e77b9159ba1eb
github.com/opencontainers/image-spec f03dbe35d449c54915d235f1a3cf8f585a24babe
# containerd executor
github.com/containerd/containerd 7fc91b05917e93d474fab9465547d44eacd10ce3
github.com/containerd/continuity f4ad4294c92f596c9241947c416d1297f9faf3ea
github.com/containerd/fifo 69b99525e472735860a5269b75af1970142b3062
github.com/opencontainers/runtime-spec v1.0.0-rc5
github.com/nightlyone/lockfile 1d49c987357a327b5b03aa84cbddd582c328615d
golang.org/x/sync 450f422ab23cf9881c94e2db30cac0eb1b7cf80c
github.com/davecgh/go-spew 5215b55f46b2b919f50a1df0eaa5886afe4e3b3d
github.com/Microsoft/go-winio f778f05015353be65d242f3fedc18695756153bb
@ -49,7 +59,7 @@ github.com/spf13/cobra 8e91712f174ced10270cf66615e0a9127e7c4de5
github.com/spf13/pflag 7f60f83a2c81bc3c3c0d5297f61ddfa68da9d3b7
github.com/stretchr/testify v1.1.4
golang.org/x/crypto 3fbbcd23f1cb824e69491a5930cfeff09b12f4d2
golang.org/x/net c427ad74c6d7a814201695e9ffde0c5d400a7674
golang.org/x/net 7dcfb8076726a3fdd9353b6b8a1f1b6be6811bd6
golang.org/x/sys 5eaf0df67e70d6997a9fe0ed24383fa1b01638d3
golang.org/x/text f72d8390a633d5dfb0cc84043294db9f6c935756
golang.org/x/time a4bde12657593d5e90d0533a3e4fd95e635124cb

2
vendor/github.com/golang/protobuf/README.md generated vendored
View File

@ -22,7 +22,7 @@ To use this software, you must:
for details or, if you are using gccgo, follow the instructions at
https://golang.org/doc/install/gccgo
- Grab the code from the repository and install the proto package.
The simplest way is to run `go get -u github.com/golang/protobuf/{proto,protoc-gen-go}`.
The simplest way is to run `go get -u github.com/golang/protobuf/protoc-gen-go`.
The compiler plugin, protoc-gen-go, will be installed in $GOBIN,
defaulting to $GOPATH/bin. It must be in your $PATH for the protocol
compiler, protoc, to find it.

168
vendor/github.com/golang/protobuf/ptypes/any/any.pb.go generated vendored Normal file
View File

@ -0,0 +1,168 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: github.com/golang/protobuf/ptypes/any/any.proto
/*
Package any is a generated protocol buffer package.
It is generated from these files:
github.com/golang/protobuf/ptypes/any/any.proto
It has these top-level messages:
Any
*/
package any
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
// `Any` contains an arbitrary serialized protocol buffer message along with a
// URL that describes the type of the serialized message.
//
// Protobuf library provides support to pack/unpack Any values in the form
// of utility functions or additional generated methods of the Any type.
//
// Example 1: Pack and unpack a message in C++.
//
// Foo foo = ...;
// Any any;
// any.PackFrom(foo);
// ...
// if (any.UnpackTo(&foo)) {
// ...
// }
//
// Example 2: Pack and unpack a message in Java.
//
// Foo foo = ...;
// Any any = Any.pack(foo);
// ...
// if (any.is(Foo.class)) {
// foo = any.unpack(Foo.class);
// }
//
// Example 3: Pack and unpack a message in Python.
//
// foo = Foo(...)
// any = Any()
// any.Pack(foo)
// ...
// if any.Is(Foo.DESCRIPTOR):
// any.Unpack(foo)
// ...
//
// The pack methods provided by protobuf library will by default use
// 'type.googleapis.com/full.type.name' as the type URL and the unpack
// methods only use the fully qualified type name after the last '/'
// in the type URL, for example "foo.bar.com/x/y.z" will yield type
// name "y.z".
//
//
// JSON
// ====
// The JSON representation of an `Any` value uses the regular
// representation of the deserialized, embedded message, with an
// additional field `@type` which contains the type URL. Example:
//
// package google.profile;
// message Person {
// string first_name = 1;
// string last_name = 2;
// }
//
// {
// "@type": "type.googleapis.com/google.profile.Person",
// "firstName": <string>,
// "lastName": <string>
// }
//
// If the embedded message type is well-known and has a custom JSON
// representation, that representation will be embedded adding a field
// `value` which holds the custom JSON in addition to the `@type`
// field. Example (for message [google.protobuf.Duration][]):
//
// {
// "@type": "type.googleapis.com/google.protobuf.Duration",
// "value": "1.212s"
// }
//
type Any struct {
// A URL/resource name whose content describes the type of the
// serialized protocol buffer message.
//
// For URLs which use the scheme `http`, `https`, or no scheme, the
// following restrictions and interpretations apply:
//
// * If no scheme is provided, `https` is assumed.
// * The last segment of the URL's path must represent the fully
// qualified name of the type (as in `path/google.protobuf.Duration`).
// The name should be in a canonical form (e.g., leading "." is
// not accepted).
// * An HTTP GET on the URL must yield a [google.protobuf.Type][]
// value in binary format, or produce an error.
// * Applications are allowed to cache lookup results based on the
// URL, or have them precompiled into a binary to avoid any
// lookup. Therefore, binary compatibility needs to be preserved
// on changes to types. (Use versioned type names to manage
// breaking changes.)
//
// Schemes other than `http`, `https` (or the empty scheme) might be
// used with implementation specific semantics.
//
TypeUrl string `protobuf:"bytes,1,opt,name=type_url,json=typeUrl" json:"type_url,omitempty"`
// Must be a valid serialized protocol buffer of the above specified type.
Value []byte `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
}
func (m *Any) Reset() { *m = Any{} }
func (m *Any) String() string { return proto.CompactTextString(m) }
func (*Any) ProtoMessage() {}
func (*Any) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
func (*Any) XXX_WellKnownType() string { return "Any" }
func (m *Any) GetTypeUrl() string {
if m != nil {
return m.TypeUrl
}
return ""
}
func (m *Any) GetValue() []byte {
if m != nil {
return m.Value
}
return nil
}
func init() {
proto.RegisterType((*Any)(nil), "google.protobuf.Any")
}
func init() { proto.RegisterFile("github.com/golang/protobuf/ptypes/any/any.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
// 184 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xd2, 0x4f, 0xcf, 0x2c, 0xc9,
0x28, 0x4d, 0xd2, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xcf, 0xcf, 0x49, 0xcc, 0x4b, 0xd7, 0x2f, 0x28,
0xca, 0x2f, 0xc9, 0x4f, 0x2a, 0x4d, 0xd3, 0x2f, 0x28, 0xa9, 0x2c, 0x48, 0x2d, 0xd6, 0x4f, 0xcc,
0xab, 0x04, 0x61, 0x3d, 0xb0, 0xb8, 0x10, 0x7f, 0x7a, 0x7e, 0x7e, 0x7a, 0x4e, 0xaa, 0x1e, 0x4c,
0x95, 0x92, 0x19, 0x17, 0xb3, 0x63, 0x5e, 0xa5, 0x90, 0x24, 0x17, 0x07, 0x48, 0x79, 0x7c, 0x69,
0x51, 0x8e, 0x04, 0xa3, 0x02, 0xa3, 0x06, 0x67, 0x10, 0x3b, 0x88, 0x1f, 0x5a, 0x94, 0x23, 0x24,
0xc2, 0xc5, 0x5a, 0x96, 0x98, 0x53, 0x9a, 0x2a, 0xc1, 0xa4, 0xc0, 0xa8, 0xc1, 0x13, 0x04, 0xe1,
0x38, 0xe5, 0x73, 0x09, 0x27, 0xe7, 0xe7, 0xea, 0xa1, 0x19, 0xe7, 0xc4, 0xe1, 0x98, 0x57, 0x19,
0x00, 0xe2, 0x04, 0x30, 0x46, 0xa9, 0x12, 0xe5, 0xb8, 0x45, 0x4c, 0xcc, 0xee, 0x01, 0x4e, 0xab,
0x98, 0xe4, 0xdc, 0x21, 0x46, 0x05, 0x40, 0x95, 0xe8, 0x85, 0xa7, 0xe6, 0xe4, 0x78, 0xe7, 0xe5,
0x97, 0xe7, 0x85, 0x80, 0x94, 0x26, 0xb1, 0x81, 0xf5, 0x1a, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff,
0x45, 0x1f, 0x1a, 0xf2, 0xf3, 0x00, 0x00, 0x00,
}

139
vendor/github.com/golang/protobuf/ptypes/any/any.proto generated vendored Normal file
View File

@ -0,0 +1,139 @@
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
syntax = "proto3";
package google.protobuf;
option csharp_namespace = "Google.Protobuf.WellKnownTypes";
option go_package = "github.com/golang/protobuf/ptypes/any";
option java_package = "com.google.protobuf";
option java_outer_classname = "AnyProto";
option java_multiple_files = true;
option objc_class_prefix = "GPB";
// `Any` contains an arbitrary serialized protocol buffer message along with a
// URL that describes the type of the serialized message.
//
// Protobuf library provides support to pack/unpack Any values in the form
// of utility functions or additional generated methods of the Any type.
//
// Example 1: Pack and unpack a message in C++.
//
// Foo foo = ...;
// Any any;
// any.PackFrom(foo);
// ...
// if (any.UnpackTo(&foo)) {
// ...
// }
//
// Example 2: Pack and unpack a message in Java.
//
// Foo foo = ...;
// Any any = Any.pack(foo);
// ...
// if (any.is(Foo.class)) {
// foo = any.unpack(Foo.class);
// }
//
// Example 3: Pack and unpack a message in Python.
//
// foo = Foo(...)
// any = Any()
// any.Pack(foo)
// ...
// if any.Is(Foo.DESCRIPTOR):
// any.Unpack(foo)
// ...
//
// The pack methods provided by protobuf library will by default use
// 'type.googleapis.com/full.type.name' as the type URL and the unpack
// methods only use the fully qualified type name after the last '/'
// in the type URL, for example "foo.bar.com/x/y.z" will yield type
// name "y.z".
//
//
// JSON
// ====
// The JSON representation of an `Any` value uses the regular
// representation of the deserialized, embedded message, with an
// additional field `@type` which contains the type URL. Example:
//
// package google.profile;
// message Person {
// string first_name = 1;
// string last_name = 2;
// }
//
// {
// "@type": "type.googleapis.com/google.profile.Person",
// "firstName": <string>,
// "lastName": <string>
// }
//
// If the embedded message type is well-known and has a custom JSON
// representation, that representation will be embedded adding a field
// `value` which holds the custom JSON in addition to the `@type`
// field. Example (for message [google.protobuf.Duration][]):
//
// {
// "@type": "type.googleapis.com/google.protobuf.Duration",
// "value": "1.212s"
// }
//
message Any {
// A URL/resource name whose content describes the type of the
// serialized protocol buffer message.
//
// For URLs which use the scheme `http`, `https`, or no scheme, the
// following restrictions and interpretations apply:
//
// * If no scheme is provided, `https` is assumed.
// * The last segment of the URL's path must represent the fully
// qualified name of the type (as in `path/google.protobuf.Duration`).
// The name should be in a canonical form (e.g., leading "." is
// not accepted).
// * An HTTP GET on the URL must yield a [google.protobuf.Type][]
// value in binary format, or produce an error.
// * Applications are allowed to cache lookup results based on the
// URL, or have them precompiled into a binary to avoid any
// lookup. Therefore, binary compatibility needs to be preserved
// on changes to types. (Use versioned type names to manage
// breaking changes.)
//
// Schemes other than `http`, `https` (or the empty scheme) might be
// used with implementation specific semantics.
//
string type_url = 1;
// Must be a valid serialized protocol buffer of the above specified type.
bytes value = 2;
}

30
vendor/golang.org/x/net/context/context.go generated vendored
View File

@ -7,7 +7,7 @@
// and between processes.
//
// Incoming requests to a server should create a Context, and outgoing calls to
// servers should accept a Context. The chain of function calls between must
// servers should accept a Context. The chain of function calls between must
// propagate the Context, optionally replacing it with a modified copy created
// using WithDeadline, WithTimeout, WithCancel, or WithValue.
//
@ -16,14 +16,14 @@
// propagation:
//
// Do not store Contexts inside a struct type; instead, pass a Context
// explicitly to each function that needs it. The Context should be the first
// explicitly to each function that needs it. The Context should be the first
// parameter, typically named ctx:
//
// func DoSomething(ctx context.Context, arg Arg) error {
// // ... use ctx ...
// }
//
// Do not pass a nil Context, even if a function permits it. Pass context.TODO
// Do not pass a nil Context, even if a function permits it. Pass context.TODO
// if you are unsure about which Context to use.
//
// Use context Values only for request-scoped data that transits processes and
@ -44,13 +44,13 @@ import "time"
// Context's methods may be called by multiple goroutines simultaneously.
type Context interface {
// Deadline returns the time when work done on behalf of this context
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
Deadline() (deadline time.Time, ok bool)
// Done returns a channel that's closed when work done on behalf of this
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
//
// WithCancel arranges for Done to be closed when cancel is called;
// WithDeadline arranges for Done to be closed when the deadline
@ -79,24 +79,24 @@ type Context interface {
// a Done channel for cancelation.
Done() <-chan struct{}
// Err returns a non-nil error value after Done is closed. Err returns
// Err returns a non-nil error value after Done is closed. Err returns
// Canceled if the context was canceled or DeadlineExceeded if the
// context's deadline passed. No other values for Err are defined.
// context's deadline passed. No other values for Err are defined.
// After Done is closed, successive calls to Err return the same value.
Err() error
// Value returns the value associated with this context for key, or nil
// if no value is associated with key. Successive calls to Value with
// if no value is associated with key. Successive calls to Value with
// the same key returns the same result.
//
// Use context values only for request-scoped data that transits
// processes and API boundaries, not for passing optional parameters to
// functions.
//
// A key identifies a specific value in a Context. Functions that wish
// A key identifies a specific value in a Context. Functions that wish
// to store values in Context typically allocate a key in a global
// variable then use that key as the argument to context.WithValue and
// Context.Value. A key can be any type that supports equality;
// Context.Value. A key can be any type that supports equality;
// packages should define keys as an unexported type to avoid
// collisions.
//
@ -115,7 +115,7 @@ type Context interface {
// // This prevents collisions with keys defined in other packages.
// type key int
//
// // userKey is the key for user.User values in Contexts. It is
// // userKey is the key for user.User values in Contexts. It is
// // unexported; clients use user.NewContext and user.FromContext
// // instead of using this key directly.
// var userKey key = 0
@ -134,14 +134,14 @@ type Context interface {
}
// Background returns a non-nil, empty Context. It is never canceled, has no
// values, and has no deadline. It is typically used by the main function,
// values, and has no deadline. It is typically used by the main function,
// initialization, and tests, and as the top-level Context for incoming
// requests.
func Background() Context {
return background
}
// TODO returns a non-nil, empty Context. Code should use context.TODO when
// TODO returns a non-nil, empty Context. Code should use context.TODO when
// it's unclear which Context to use or it is not yet available (because the
// surrounding function has not yet been extended to accept a Context
// parameter). TODO is recognized by static analysis tools that determine

4
vendor/golang.org/x/net/context/go17.go generated vendored
View File

@ -35,8 +35,8 @@ func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
}
// WithDeadline returns a copy of the parent context with the deadline adjusted
// to be no later than d. If the parent's deadline is already earlier than d,
// WithDeadline(parent, d) is semantically equivalent to parent. The returned
// to be no later than d. If the parent's deadline is already earlier than d,
// WithDeadline(parent, d) is semantically equivalent to parent. The returned
// context's Done channel is closed when the deadline expires, when the returned
// cancel function is called, or when the parent context's Done channel is
// closed, whichever happens first.

18
vendor/golang.org/x/net/context/pre_go17.go generated vendored
View File

@ -13,7 +13,7 @@ import (
"time"
)
// An emptyCtx is never canceled, has no values, and has no deadline. It is not
// An emptyCtx is never canceled, has no values, and has no deadline. It is not
// struct{}, since vars of this type must have distinct addresses.
type emptyCtx int
@ -104,7 +104,7 @@ func propagateCancel(parent Context, child canceler) {
}
// parentCancelCtx follows a chain of parent references until it finds a
// *cancelCtx. This function understands how each of the concrete types in this
// *cancelCtx. This function understands how each of the concrete types in this
// package represents its parent.
func parentCancelCtx(parent Context) (*cancelCtx, bool) {
for {
@ -134,14 +134,14 @@ func removeChild(parent Context, child canceler) {
p.mu.Unlock()
}
// A canceler is a context type that can be canceled directly. The
// A canceler is a context type that can be canceled directly. The
// implementations are *cancelCtx and *timerCtx.
type canceler interface {
cancel(removeFromParent bool, err error)
Done() <-chan struct{}
}
// A cancelCtx can be canceled. When canceled, it also cancels any children
// A cancelCtx can be canceled. When canceled, it also cancels any children
// that implement canceler.
type cancelCtx struct {
Context
@ -193,8 +193,8 @@ func (c *cancelCtx) cancel(removeFromParent bool, err error) {
}
// WithDeadline returns a copy of the parent context with the deadline adjusted
// to be no later than d. If the parent's deadline is already earlier than d,
// WithDeadline(parent, d) is semantically equivalent to parent. The returned
// to be no later than d. If the parent's deadline is already earlier than d,
// WithDeadline(parent, d) is semantically equivalent to parent. The returned
// context's Done channel is closed when the deadline expires, when the returned
// cancel function is called, or when the parent context's Done channel is
// closed, whichever happens first.
@ -226,8 +226,8 @@ func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
return c, func() { c.cancel(true, Canceled) }
}
// A timerCtx carries a timer and a deadline. It embeds a cancelCtx to
// implement Done and Err. It implements cancel by stopping its timer then
// A timerCtx carries a timer and a deadline. It embeds a cancelCtx to
// implement Done and Err. It implements cancel by stopping its timer then
// delegating to cancelCtx.cancel.
type timerCtx struct {
*cancelCtx
@ -281,7 +281,7 @@ func WithValue(parent Context, key interface{}, val interface{}) Context {
return &valueCtx{parent, key, val}
}
// A valueCtx carries a key-value pair. It implements Value for that key and
// A valueCtx carries a key-value pair. It implements Value for that key and
// delegates all other calls to the embedded Context.
type valueCtx struct {
Context

641
vendor/golang.org/x/net/http2/ciphers.go generated vendored Normal file
View File

@ -0,0 +1,641 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
// A list of the possible cipher suite ids. Taken from
// http://www.iana.org/assignments/tls-parameters/tls-parameters.txt
const (
cipher_TLS_NULL_WITH_NULL_NULL uint16 = 0x0000
cipher_TLS_RSA_WITH_NULL_MD5 uint16 = 0x0001
cipher_TLS_RSA_WITH_NULL_SHA uint16 = 0x0002
cipher_TLS_RSA_EXPORT_WITH_RC4_40_MD5 uint16 = 0x0003
cipher_TLS_RSA_WITH_RC4_128_MD5 uint16 = 0x0004
cipher_TLS_RSA_WITH_RC4_128_SHA uint16 = 0x0005
cipher_TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 uint16 = 0x0006
cipher_TLS_RSA_WITH_IDEA_CBC_SHA uint16 = 0x0007
cipher_TLS_RSA_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x0008
cipher_TLS_RSA_WITH_DES_CBC_SHA uint16 = 0x0009
cipher_TLS_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0x000A
cipher_TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x000B
cipher_TLS_DH_DSS_WITH_DES_CBC_SHA uint16 = 0x000C
cipher_TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA uint16 = 0x000D
cipher_TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x000E
cipher_TLS_DH_RSA_WITH_DES_CBC_SHA uint16 = 0x000F
cipher_TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0x0010
cipher_TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x0011
cipher_TLS_DHE_DSS_WITH_DES_CBC_SHA uint16 = 0x0012
cipher_TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA uint16 = 0x0013
cipher_TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x0014
cipher_TLS_DHE_RSA_WITH_DES_CBC_SHA uint16 = 0x0015
cipher_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0x0016
cipher_TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 uint16 = 0x0017
cipher_TLS_DH_anon_WITH_RC4_128_MD5 uint16 = 0x0018
cipher_TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x0019
cipher_TLS_DH_anon_WITH_DES_CBC_SHA uint16 = 0x001A
cipher_TLS_DH_anon_WITH_3DES_EDE_CBC_SHA uint16 = 0x001B
// Reserved uint16 = 0x001C-1D
cipher_TLS_KRB5_WITH_DES_CBC_SHA uint16 = 0x001E
cipher_TLS_KRB5_WITH_3DES_EDE_CBC_SHA uint16 = 0x001F
cipher_TLS_KRB5_WITH_RC4_128_SHA uint16 = 0x0020
cipher_TLS_KRB5_WITH_IDEA_CBC_SHA uint16 = 0x0021
cipher_TLS_KRB5_WITH_DES_CBC_MD5 uint16 = 0x0022
cipher_TLS_KRB5_WITH_3DES_EDE_CBC_MD5 uint16 = 0x0023
cipher_TLS_KRB5_WITH_RC4_128_MD5 uint16 = 0x0024
cipher_TLS_KRB5_WITH_IDEA_CBC_MD5 uint16 = 0x0025
cipher_TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA uint16 = 0x0026
cipher_TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA uint16 = 0x0027
cipher_TLS_KRB5_EXPORT_WITH_RC4_40_SHA uint16 = 0x0028
cipher_TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5 uint16 = 0x0029
cipher_TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5 uint16 = 0x002A
cipher_TLS_KRB5_EXPORT_WITH_RC4_40_MD5 uint16 = 0x002B
cipher_TLS_PSK_WITH_NULL_SHA uint16 = 0x002C
cipher_TLS_DHE_PSK_WITH_NULL_SHA uint16 = 0x002D
cipher_TLS_RSA_PSK_WITH_NULL_SHA uint16 = 0x002E
cipher_TLS_RSA_WITH_AES_128_CBC_SHA uint16 = 0x002F
cipher_TLS_DH_DSS_WITH_AES_128_CBC_SHA uint16 = 0x0030
cipher_TLS_DH_RSA_WITH_AES_128_CBC_SHA uint16 = 0x0031
cipher_TLS_DHE_DSS_WITH_AES_128_CBC_SHA uint16 = 0x0032
cipher_TLS_DHE_RSA_WITH_AES_128_CBC_SHA uint16 = 0x0033
cipher_TLS_DH_anon_WITH_AES_128_CBC_SHA uint16 = 0x0034
cipher_TLS_RSA_WITH_AES_256_CBC_SHA uint16 = 0x0035
cipher_TLS_DH_DSS_WITH_AES_256_CBC_SHA uint16 = 0x0036
cipher_TLS_DH_RSA_WITH_AES_256_CBC_SHA uint16 = 0x0037
cipher_TLS_DHE_DSS_WITH_AES_256_CBC_SHA uint16 = 0x0038
cipher_TLS_DHE_RSA_WITH_AES_256_CBC_SHA uint16 = 0x0039
cipher_TLS_DH_anon_WITH_AES_256_CBC_SHA uint16 = 0x003A
cipher_TLS_RSA_WITH_NULL_SHA256 uint16 = 0x003B
cipher_TLS_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0x003C
cipher_TLS_RSA_WITH_AES_256_CBC_SHA256 uint16 = 0x003D
cipher_TLS_DH_DSS_WITH_AES_128_CBC_SHA256 uint16 = 0x003E
cipher_TLS_DH_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0x003F
cipher_TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 uint16 = 0x0040
cipher_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0041
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0042
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0043
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0044
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0045
cipher_TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0046
// Reserved uint16 = 0x0047-4F
// Reserved uint16 = 0x0050-58
// Reserved uint16 = 0x0059-5C
// Unassigned uint16 = 0x005D-5F
// Reserved uint16 = 0x0060-66
cipher_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0x0067
cipher_TLS_DH_DSS_WITH_AES_256_CBC_SHA256 uint16 = 0x0068
cipher_TLS_DH_RSA_WITH_AES_256_CBC_SHA256 uint16 = 0x0069
cipher_TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 uint16 = 0x006A
cipher_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 uint16 = 0x006B
cipher_TLS_DH_anon_WITH_AES_128_CBC_SHA256 uint16 = 0x006C
cipher_TLS_DH_anon_WITH_AES_256_CBC_SHA256 uint16 = 0x006D
// Unassigned uint16 = 0x006E-83
cipher_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0084
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0085
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0086
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0087
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0088
cipher_TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0089
cipher_TLS_PSK_WITH_RC4_128_SHA uint16 = 0x008A
cipher_TLS_PSK_WITH_3DES_EDE_CBC_SHA uint16 = 0x008B
cipher_TLS_PSK_WITH_AES_128_CBC_SHA uint16 = 0x008C
cipher_TLS_PSK_WITH_AES_256_CBC_SHA uint16 = 0x008D
cipher_TLS_DHE_PSK_WITH_RC4_128_SHA uint16 = 0x008E
cipher_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA uint16 = 0x008F
cipher_TLS_DHE_PSK_WITH_AES_128_CBC_SHA uint16 = 0x0090
cipher_TLS_DHE_PSK_WITH_AES_256_CBC_SHA uint16 = 0x0091
cipher_TLS_RSA_PSK_WITH_RC4_128_SHA uint16 = 0x0092
cipher_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA uint16 = 0x0093
cipher_TLS_RSA_PSK_WITH_AES_128_CBC_SHA uint16 = 0x0094
cipher_TLS_RSA_PSK_WITH_AES_256_CBC_SHA uint16 = 0x0095
cipher_TLS_RSA_WITH_SEED_CBC_SHA uint16 = 0x0096
cipher_TLS_DH_DSS_WITH_SEED_CBC_SHA uint16 = 0x0097
cipher_TLS_DH_RSA_WITH_SEED_CBC_SHA uint16 = 0x0098
cipher_TLS_DHE_DSS_WITH_SEED_CBC_SHA uint16 = 0x0099
cipher_TLS_DHE_RSA_WITH_SEED_CBC_SHA uint16 = 0x009A
cipher_TLS_DH_anon_WITH_SEED_CBC_SHA uint16 = 0x009B
cipher_TLS_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0x009C
cipher_TLS_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0x009D
cipher_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0x009E
cipher_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0x009F
cipher_TLS_DH_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0x00A0
cipher_TLS_DH_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0x00A1
cipher_TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 uint16 = 0x00A2
cipher_TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 uint16 = 0x00A3
cipher_TLS_DH_DSS_WITH_AES_128_GCM_SHA256 uint16 = 0x00A4
cipher_TLS_DH_DSS_WITH_AES_256_GCM_SHA384 uint16 = 0x00A5
cipher_TLS_DH_anon_WITH_AES_128_GCM_SHA256 uint16 = 0x00A6
cipher_TLS_DH_anon_WITH_AES_256_GCM_SHA384 uint16 = 0x00A7
cipher_TLS_PSK_WITH_AES_128_GCM_SHA256 uint16 = 0x00A8
cipher_TLS_PSK_WITH_AES_256_GCM_SHA384 uint16 = 0x00A9
cipher_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 uint16 = 0x00AA
cipher_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 uint16 = 0x00AB
cipher_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 uint16 = 0x00AC
cipher_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 uint16 = 0x00AD
cipher_TLS_PSK_WITH_AES_128_CBC_SHA256 uint16 = 0x00AE
cipher_TLS_PSK_WITH_AES_256_CBC_SHA384 uint16 = 0x00AF
cipher_TLS_PSK_WITH_NULL_SHA256 uint16 = 0x00B0
cipher_TLS_PSK_WITH_NULL_SHA384 uint16 = 0x00B1
cipher_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 uint16 = 0x00B2
cipher_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 uint16 = 0x00B3
cipher_TLS_DHE_PSK_WITH_NULL_SHA256 uint16 = 0x00B4
cipher_TLS_DHE_PSK_WITH_NULL_SHA384 uint16 = 0x00B5
cipher_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 uint16 = 0x00B6
cipher_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 uint16 = 0x00B7
cipher_TLS_RSA_PSK_WITH_NULL_SHA256 uint16 = 0x00B8
cipher_TLS_RSA_PSK_WITH_NULL_SHA384 uint16 = 0x00B9
cipher_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BA
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BB
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BC
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BD
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BE
cipher_TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BF
cipher_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C0
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C1
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C2
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C3
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C4
cipher_TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C5
// Unassigned uint16 = 0x00C6-FE
cipher_TLS_EMPTY_RENEGOTIATION_INFO_SCSV uint16 = 0x00FF
// Unassigned uint16 = 0x01-55,*
cipher_TLS_FALLBACK_SCSV uint16 = 0x5600
// Unassigned uint16 = 0x5601 - 0xC000
cipher_TLS_ECDH_ECDSA_WITH_NULL_SHA uint16 = 0xC001
cipher_TLS_ECDH_ECDSA_WITH_RC4_128_SHA uint16 = 0xC002
cipher_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC003
cipher_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA uint16 = 0xC004
cipher_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA uint16 = 0xC005
cipher_TLS_ECDHE_ECDSA_WITH_NULL_SHA uint16 = 0xC006
cipher_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA uint16 = 0xC007
cipher_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC008
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA uint16 = 0xC009
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA uint16 = 0xC00A
cipher_TLS_ECDH_RSA_WITH_NULL_SHA uint16 = 0xC00B
cipher_TLS_ECDH_RSA_WITH_RC4_128_SHA uint16 = 0xC00C
cipher_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC00D
cipher_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA uint16 = 0xC00E
cipher_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA uint16 = 0xC00F
cipher_TLS_ECDHE_RSA_WITH_NULL_SHA uint16 = 0xC010
cipher_TLS_ECDHE_RSA_WITH_RC4_128_SHA uint16 = 0xC011
cipher_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC012
cipher_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA uint16 = 0xC013
cipher_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA uint16 = 0xC014
cipher_TLS_ECDH_anon_WITH_NULL_SHA uint16 = 0xC015
cipher_TLS_ECDH_anon_WITH_RC4_128_SHA uint16 = 0xC016
cipher_TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA uint16 = 0xC017
cipher_TLS_ECDH_anon_WITH_AES_128_CBC_SHA uint16 = 0xC018
cipher_TLS_ECDH_anon_WITH_AES_256_CBC_SHA uint16 = 0xC019
cipher_TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC01A
cipher_TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC01B
cipher_TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA uint16 = 0xC01C
cipher_TLS_SRP_SHA_WITH_AES_128_CBC_SHA uint16 = 0xC01D
cipher_TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA uint16 = 0xC01E
cipher_TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA uint16 = 0xC01F
cipher_TLS_SRP_SHA_WITH_AES_256_CBC_SHA uint16 = 0xC020
cipher_TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA uint16 = 0xC021
cipher_TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA uint16 = 0xC022
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 uint16 = 0xC023
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 uint16 = 0xC024
cipher_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 uint16 = 0xC025
cipher_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 uint16 = 0xC026
cipher_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0xC027
cipher_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 uint16 = 0xC028
cipher_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0xC029
cipher_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 uint16 = 0xC02A
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 uint16 = 0xC02B
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 uint16 = 0xC02C
cipher_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 uint16 = 0xC02D
cipher_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 uint16 = 0xC02E
cipher_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0xC02F
cipher_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0xC030
cipher_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0xC031
cipher_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0xC032
cipher_TLS_ECDHE_PSK_WITH_RC4_128_SHA uint16 = 0xC033
cipher_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA uint16 = 0xC034
cipher_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA uint16 = 0xC035
cipher_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA uint16 = 0xC036
cipher_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 uint16 = 0xC037
cipher_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 uint16 = 0xC038
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA uint16 = 0xC039
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA256 uint16 = 0xC03A
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA384 uint16 = 0xC03B
cipher_TLS_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC03C
cipher_TLS_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC03D
cipher_TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC03E
cipher_TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC03F
cipher_TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC040
cipher_TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC041
cipher_TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC042
cipher_TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC043
cipher_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC044
cipher_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC045
cipher_TLS_DH_anon_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC046
cipher_TLS_DH_anon_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC047
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC048
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC049
cipher_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC04A
cipher_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC04B
cipher_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC04C
cipher_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC04D
cipher_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC04E
cipher_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC04F
cipher_TLS_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC050
cipher_TLS_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC051
cipher_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC052
cipher_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC053
cipher_TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC054
cipher_TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC055
cipher_TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC056
cipher_TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC057
cipher_TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC058
cipher_TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC059
cipher_TLS_DH_anon_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC05A
cipher_TLS_DH_anon_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC05B
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC05C
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC05D
cipher_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC05E
cipher_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC05F
cipher_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC060
cipher_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC061
cipher_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC062
cipher_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC063
cipher_TLS_PSK_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC064
cipher_TLS_PSK_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC065
cipher_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC066
cipher_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC067
cipher_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC068
cipher_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC069
cipher_TLS_PSK_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC06A
cipher_TLS_PSK_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC06B
cipher_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC06C
cipher_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC06D
cipher_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC06E
cipher_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC06F
cipher_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC070
cipher_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC071
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC072
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC073
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC074
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC075
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC076
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC077
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC078
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC079
cipher_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC07A
cipher_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC07B
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC07C
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC07D
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC07E
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC07F
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC080
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC081
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC082
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC083
cipher_TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC084
cipher_TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC085
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC086
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC087
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC088
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC089
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC08A
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC08B
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC08C
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC08D
cipher_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC08E
cipher_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC08F
cipher_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC090
cipher_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC091
cipher_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC092
cipher_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC093
cipher_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC094
cipher_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC095
cipher_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC096
cipher_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC097
cipher_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC098
cipher_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC099
cipher_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC09A
cipher_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC09B
cipher_TLS_RSA_WITH_AES_128_CCM uint16 = 0xC09C
cipher_TLS_RSA_WITH_AES_256_CCM uint16 = 0xC09D
cipher_TLS_DHE_RSA_WITH_AES_128_CCM uint16 = 0xC09E
cipher_TLS_DHE_RSA_WITH_AES_256_CCM uint16 = 0xC09F
cipher_TLS_RSA_WITH_AES_128_CCM_8 uint16 = 0xC0A0
cipher_TLS_RSA_WITH_AES_256_CCM_8 uint16 = 0xC0A1
cipher_TLS_DHE_RSA_WITH_AES_128_CCM_8 uint16 = 0xC0A2
cipher_TLS_DHE_RSA_WITH_AES_256_CCM_8 uint16 = 0xC0A3
cipher_TLS_PSK_WITH_AES_128_CCM uint16 = 0xC0A4
cipher_TLS_PSK_WITH_AES_256_CCM uint16 = 0xC0A5
cipher_TLS_DHE_PSK_WITH_AES_128_CCM uint16 = 0xC0A6
cipher_TLS_DHE_PSK_WITH_AES_256_CCM uint16 = 0xC0A7
cipher_TLS_PSK_WITH_AES_128_CCM_8 uint16 = 0xC0A8
cipher_TLS_PSK_WITH_AES_256_CCM_8 uint16 = 0xC0A9
cipher_TLS_PSK_DHE_WITH_AES_128_CCM_8 uint16 = 0xC0AA
cipher_TLS_PSK_DHE_WITH_AES_256_CCM_8 uint16 = 0xC0AB
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CCM uint16 = 0xC0AC
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CCM uint16 = 0xC0AD
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 uint16 = 0xC0AE
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 uint16 = 0xC0AF
// Unassigned uint16 = 0xC0B0-FF
// Unassigned uint16 = 0xC1-CB,*
// Unassigned uint16 = 0xCC00-A7
cipher_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCA8
cipher_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCA9
cipher_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAA
cipher_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAB
cipher_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAC
cipher_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAD
cipher_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAE
)
// isBadCipher reports whether the cipher is blacklisted by the HTTP/2 spec.
// References:
// https://tools.ietf.org/html/rfc7540#appendix-A
// Reject cipher suites from Appendix A.
// "This list includes those cipher suites that do not
// offer an ephemeral key exchange and those that are
// based on the TLS null, stream or block cipher type"
func isBadCipher(cipher uint16) bool {
switch cipher {
case cipher_TLS_NULL_WITH_NULL_NULL,
cipher_TLS_RSA_WITH_NULL_MD5,
cipher_TLS_RSA_WITH_NULL_SHA,
cipher_TLS_RSA_EXPORT_WITH_RC4_40_MD5,
cipher_TLS_RSA_WITH_RC4_128_MD5,
cipher_TLS_RSA_WITH_RC4_128_SHA,
cipher_TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5,
cipher_TLS_RSA_WITH_IDEA_CBC_SHA,
cipher_TLS_RSA_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_RSA_WITH_DES_CBC_SHA,
cipher_TLS_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DH_DSS_WITH_DES_CBC_SHA,
cipher_TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DH_RSA_WITH_DES_CBC_SHA,
cipher_TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_DES_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_DES_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DH_anon_EXPORT_WITH_RC4_40_MD5,
cipher_TLS_DH_anon_WITH_RC4_128_MD5,
cipher_TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DH_anon_WITH_DES_CBC_SHA,
cipher_TLS_DH_anon_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_KRB5_WITH_DES_CBC_SHA,
cipher_TLS_KRB5_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_KRB5_WITH_RC4_128_SHA,
cipher_TLS_KRB5_WITH_IDEA_CBC_SHA,
cipher_TLS_KRB5_WITH_DES_CBC_MD5,
cipher_TLS_KRB5_WITH_3DES_EDE_CBC_MD5,
cipher_TLS_KRB5_WITH_RC4_128_MD5,
cipher_TLS_KRB5_WITH_IDEA_CBC_MD5,
cipher_TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA,
cipher_TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA,
cipher_TLS_KRB5_EXPORT_WITH_RC4_40_SHA,
cipher_TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5,
cipher_TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5,
cipher_TLS_KRB5_EXPORT_WITH_RC4_40_MD5,
cipher_TLS_PSK_WITH_NULL_SHA,
cipher_TLS_DHE_PSK_WITH_NULL_SHA,
cipher_TLS_RSA_PSK_WITH_NULL_SHA,
cipher_TLS_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_DH_DSS_WITH_AES_128_CBC_SHA,
cipher_TLS_DH_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_DH_anon_WITH_AES_128_CBC_SHA,
cipher_TLS_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_DH_DSS_WITH_AES_256_CBC_SHA,
cipher_TLS_DH_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_AES_256_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_DH_anon_WITH_AES_256_CBC_SHA,
cipher_TLS_RSA_WITH_NULL_SHA256,
cipher_TLS_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_RSA_WITH_AES_256_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_AES_128_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_AES_128_CBC_SHA256,
cipher_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_AES_256_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_AES_256_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_AES_256_CBC_SHA256,
cipher_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
cipher_TLS_DH_anon_WITH_AES_128_CBC_SHA256,
cipher_TLS_DH_anon_WITH_AES_256_CBC_SHA256,
cipher_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_PSK_WITH_RC4_128_SHA,
cipher_TLS_PSK_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_PSK_WITH_AES_128_CBC_SHA,
cipher_TLS_PSK_WITH_AES_256_CBC_SHA,
cipher_TLS_DHE_PSK_WITH_RC4_128_SHA,
cipher_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DHE_PSK_WITH_AES_128_CBC_SHA,
cipher_TLS_DHE_PSK_WITH_AES_256_CBC_SHA,
cipher_TLS_RSA_PSK_WITH_RC4_128_SHA,
cipher_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_RSA_PSK_WITH_AES_128_CBC_SHA,
cipher_TLS_RSA_PSK_WITH_AES_256_CBC_SHA,
cipher_TLS_RSA_WITH_SEED_CBC_SHA,
cipher_TLS_DH_DSS_WITH_SEED_CBC_SHA,
cipher_TLS_DH_RSA_WITH_SEED_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_SEED_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_SEED_CBC_SHA,
cipher_TLS_DH_anon_WITH_SEED_CBC_SHA,
cipher_TLS_RSA_WITH_AES_128_GCM_SHA256,
cipher_TLS_RSA_WITH_AES_256_GCM_SHA384,
cipher_TLS_DH_RSA_WITH_AES_128_GCM_SHA256,
cipher_TLS_DH_RSA_WITH_AES_256_GCM_SHA384,
cipher_TLS_DH_DSS_WITH_AES_128_GCM_SHA256,
cipher_TLS_DH_DSS_WITH_AES_256_GCM_SHA384,
cipher_TLS_DH_anon_WITH_AES_128_GCM_SHA256,
cipher_TLS_DH_anon_WITH_AES_256_GCM_SHA384,
cipher_TLS_PSK_WITH_AES_128_GCM_SHA256,
cipher_TLS_PSK_WITH_AES_256_GCM_SHA384,
cipher_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256,
cipher_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384,
cipher_TLS_PSK_WITH_AES_128_CBC_SHA256,
cipher_TLS_PSK_WITH_AES_256_CBC_SHA384,
cipher_TLS_PSK_WITH_NULL_SHA256,
cipher_TLS_PSK_WITH_NULL_SHA384,
cipher_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256,
cipher_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384,
cipher_TLS_DHE_PSK_WITH_NULL_SHA256,
cipher_TLS_DHE_PSK_WITH_NULL_SHA384,
cipher_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256,
cipher_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
cipher_TLS_RSA_PSK_WITH_NULL_SHA256,
cipher_TLS_RSA_PSK_WITH_NULL_SHA384,
cipher_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_EMPTY_RENEGOTIATION_INFO_SCSV,
cipher_TLS_ECDH_ECDSA_WITH_NULL_SHA,
cipher_TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
cipher_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_NULL_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDH_RSA_WITH_NULL_SHA,
cipher_TLS_ECDH_RSA_WITH_RC4_128_SHA,
cipher_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDHE_RSA_WITH_NULL_SHA,
cipher_TLS_ECDHE_RSA_WITH_RC4_128_SHA,
cipher_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDH_anon_WITH_NULL_SHA,
cipher_TLS_ECDH_anon_WITH_RC4_128_SHA,
cipher_TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDH_anon_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDH_anon_WITH_AES_256_CBC_SHA,
cipher_TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_SRP_SHA_WITH_AES_128_CBC_SHA,
cipher_TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA,
cipher_TLS_SRP_SHA_WITH_AES_256_CBC_SHA,
cipher_TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
cipher_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,
cipher_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384,
cipher_TLS_ECDHE_PSK_WITH_RC4_128_SHA,
cipher_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA,
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA256,
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA384,
cipher_TLS_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DH_anon_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DH_anon_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_RSA_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_RSA_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_DH_anon_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_DH_anon_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_PSK_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_PSK_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_PSK_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_PSK_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_RSA_WITH_AES_128_CCM,
cipher_TLS_RSA_WITH_AES_256_CCM,
cipher_TLS_RSA_WITH_AES_128_CCM_8,
cipher_TLS_RSA_WITH_AES_256_CCM_8,
cipher_TLS_PSK_WITH_AES_128_CCM,
cipher_TLS_PSK_WITH_AES_256_CCM,
cipher_TLS_PSK_WITH_AES_128_CCM_8,
cipher_TLS_PSK_WITH_AES_256_CCM_8:
return true
default:
return false
}
}

2
vendor/golang.org/x/net/http2/client_conn_pool.go generated vendored
View File

@ -247,7 +247,7 @@ func filterOutClientConn(in []*ClientConn, exclude *ClientConn) []*ClientConn {
}
// noDialClientConnPool is an implementation of http2.ClientConnPool
// which never dials. We let the HTTP/1.1 client dial and use its TLS
// which never dials. We let the HTTP/1.1 client dial and use its TLS
// connection instead.
type noDialClientConnPool struct{ *clientConnPool }

146
vendor/golang.org/x/net/http2/databuffer.go generated vendored Normal file
View File

@ -0,0 +1,146 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
import (
"errors"
"fmt"
"sync"
)
// Buffer chunks are allocated from a pool to reduce pressure on GC.
// The maximum wasted space per dataBuffer is 2x the largest size class,
// which happens when the dataBuffer has multiple chunks and there is
// one unread byte in both the first and last chunks. We use a few size
// classes to minimize overheads for servers that typically receive very
// small request bodies.
//
// TODO: Benchmark to determine if the pools are necessary. The GC may have
// improved enough that we can instead allocate chunks like this:
// make([]byte, max(16<<10, expectedBytesRemaining))
var (
dataChunkSizeClasses = []int{
1 << 10,
2 << 10,
4 << 10,
8 << 10,
16 << 10,
}
dataChunkPools = [...]sync.Pool{
{New: func() interface{} { return make([]byte, 1<<10) }},
{New: func() interface{} { return make([]byte, 2<<10) }},
{New: func() interface{} { return make([]byte, 4<<10) }},
{New: func() interface{} { return make([]byte, 8<<10) }},
{New: func() interface{} { return make([]byte, 16<<10) }},
}
)
func getDataBufferChunk(size int64) []byte {
i := 0
for ; i < len(dataChunkSizeClasses)-1; i++ {
if size <= int64(dataChunkSizeClasses[i]) {
break
}
}
return dataChunkPools[i].Get().([]byte)
}
func putDataBufferChunk(p []byte) {
for i, n := range dataChunkSizeClasses {
if len(p) == n {
dataChunkPools[i].Put(p)
return
}
}
panic(fmt.Sprintf("unexpected buffer len=%v", len(p)))
}
// dataBuffer is an io.ReadWriter backed by a list of data chunks.
// Each dataBuffer is used to read DATA frames on a single stream.
// The buffer is divided into chunks so the server can limit the
// total memory used by a single connection without limiting the
// request body size on any single stream.
type dataBuffer struct {
chunks [][]byte
r int // next byte to read is chunks[0][r]
w int // next byte to write is chunks[len(chunks)-1][w]
size int // total buffered bytes
expected int64 // we expect at least this many bytes in future Write calls (ignored if <= 0)
}
var errReadEmpty = errors.New("read from empty dataBuffer")
// Read copies bytes from the buffer into p.
// It is an error to read when no data is available.
func (b *dataBuffer) Read(p []byte) (int, error) {
if b.size == 0 {
return 0, errReadEmpty
}
var ntotal int
for len(p) > 0 && b.size > 0 {
readFrom := b.bytesFromFirstChunk()
n := copy(p, readFrom)
p = p[n:]
ntotal += n
b.r += n
b.size -= n
// If the first chunk has been consumed, advance to the next chunk.
if b.r == len(b.chunks[0]) {
putDataBufferChunk(b.chunks[0])
end := len(b.chunks) - 1
copy(b.chunks[:end], b.chunks[1:])
b.chunks[end] = nil
b.chunks = b.chunks[:end]
b.r = 0
}
}
return ntotal, nil
}
func (b *dataBuffer) bytesFromFirstChunk() []byte {
if len(b.chunks) == 1 {
return b.chunks[0][b.r:b.w]
}
return b.chunks[0][b.r:]
}
// Len returns the number of bytes of the unread portion of the buffer.
func (b *dataBuffer) Len() int {
return b.size
}
// Write appends p to the buffer.
func (b *dataBuffer) Write(p []byte) (int, error) {
ntotal := len(p)
for len(p) > 0 {
// If the last chunk is empty, allocate a new chunk. Try to allocate
// enough to fully copy p plus any additional bytes we expect to
// receive. However, this may allocate less than len(p).
want := int64(len(p))
if b.expected > want {
want = b.expected
}
chunk := b.lastChunkOrAlloc(want)
n := copy(chunk[b.w:], p)
p = p[n:]
b.w += n
b.size += n
b.expected -= int64(n)
}
return ntotal, nil
}
func (b *dataBuffer) lastChunkOrAlloc(want int64) []byte {
if len(b.chunks) != 0 {
last := b.chunks[len(b.chunks)-1]
if b.w < len(last) {
return last
}
}
chunk := getDataBufferChunk(want)
b.chunks = append(b.chunks, chunk)
b.w = 0
return chunk
}

60
vendor/golang.org/x/net/http2/fixed_buffer.go generated vendored
View File

@ -1,60 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
import (
"errors"
)
// fixedBuffer is an io.ReadWriter backed by a fixed size buffer.
// It never allocates, but moves old data as new data is written.
type fixedBuffer struct {
buf []byte
r, w int
}
var (
errReadEmpty = errors.New("read from empty fixedBuffer")
errWriteFull = errors.New("write on full fixedBuffer")
)
// Read copies bytes from the buffer into p.
// It is an error to read when no data is available.
func (b *fixedBuffer) Read(p []byte) (n int, err error) {
if b.r == b.w {
return 0, errReadEmpty
}
n = copy(p, b.buf[b.r:b.w])
b.r += n
if b.r == b.w {
b.r = 0
b.w = 0
}
return n, nil
}
// Len returns the number of bytes of the unread portion of the buffer.
func (b *fixedBuffer) Len() int {
return b.w - b.r
}
// Write copies bytes from p into the buffer.
// It is an error to write more data than the buffer can hold.
func (b *fixedBuffer) Write(p []byte) (n int, err error) {
// Slide existing data to beginning.
if b.r > 0 && len(p) > len(b.buf)-b.w {
copy(b.buf, b.buf[b.r:b.w])
b.w -= b.r
b.r = 0
}
// Write new data.
n = copy(b.buf[b.w:], p)
b.w += n
if n < len(p) {
err = errWriteFull
}
return n, err
}

81
vendor/golang.org/x/net/http2/frame.go generated vendored
View File

@ -122,7 +122,7 @@ var flagName = map[FrameType]map[Flags]string{
// a frameParser parses a frame given its FrameHeader and payload
// bytes. The length of payload will always equal fh.Length (which
// might be 0).
type frameParser func(fh FrameHeader, payload []byte) (Frame, error)
type frameParser func(fc *frameCache, fh FrameHeader, payload []byte) (Frame, error)
var frameParsers = map[FrameType]frameParser{
FrameData: parseDataFrame,
@ -312,7 +312,7 @@ type Framer struct {
MaxHeaderListSize uint32
// TODO: track which type of frame & with which flags was sent
// last. Then return an error (unless AllowIllegalWrites) if
// last. Then return an error (unless AllowIllegalWrites) if
// we're in the middle of a header block and a
// non-Continuation or Continuation on a different stream is
// attempted to be written.
@ -323,6 +323,8 @@ type Framer struct {
debugFramerBuf *bytes.Buffer
debugReadLoggerf func(string, ...interface{})
debugWriteLoggerf func(string, ...interface{})
frameCache *frameCache // nil if frames aren't reused (default)
}
func (fr *Framer) maxHeaderListSize() uint32 {
@ -398,6 +400,27 @@ const (
maxFrameSize = 1<<24 - 1
)
// SetReuseFrames allows the Framer to reuse Frames.
// If called on a Framer, Frames returned by calls to ReadFrame are only
// valid until the next call to ReadFrame.
func (fr *Framer) SetReuseFrames() {
if fr.frameCache != nil {
return
}
fr.frameCache = &frameCache{}
}
type frameCache struct {
dataFrame DataFrame
}
func (fc *frameCache) getDataFrame() *DataFrame {
if fc == nil {
return &DataFrame{}
}
return &fc.dataFrame
}
// NewFramer returns a Framer that writes frames to w and reads them from r.
func NewFramer(w io.Writer, r io.Reader) *Framer {
fr := &Framer{
@ -477,7 +500,7 @@ func (fr *Framer) ReadFrame() (Frame, error) {
if _, err := io.ReadFull(fr.r, payload); err != nil {
return nil, err
}
f, err := typeFrameParser(fh.Type)(fh, payload)
f, err := typeFrameParser(fh.Type)(fr.frameCache, fh, payload)
if err != nil {
if ce, ok := err.(connError); ok {
return nil, fr.connError(ce.Code, ce.Reason)
@ -565,7 +588,7 @@ func (f *DataFrame) Data() []byte {
return f.data
}
func parseDataFrame(fh FrameHeader, payload []byte) (Frame, error) {
func parseDataFrame(fc *frameCache, fh FrameHeader, payload []byte) (Frame, error) {
if fh.StreamID == 0 {
// DATA frames MUST be associated with a stream. If a
// DATA frame is received whose stream identifier
@ -574,9 +597,9 @@ func parseDataFrame(fh FrameHeader, payload []byte) (Frame, error) {
// PROTOCOL_ERROR.
return nil, connError{ErrCodeProtocol, "DATA frame with stream ID 0"}
}
f := &DataFrame{
FrameHeader: fh,
}
f := fc.getDataFrame()
f.FrameHeader = fh
var padSize byte
if fh.Flags.Has(FlagDataPadded) {
var err error
@ -600,6 +623,7 @@ var (
errStreamID = errors.New("invalid stream ID")
errDepStreamID = errors.New("invalid dependent stream ID")
errPadLength = errors.New("pad length too large")
errPadBytes = errors.New("padding bytes must all be zeros unless AllowIllegalWrites is enabled")
)
func validStreamIDOrZero(streamID uint32) bool {
@ -623,6 +647,7 @@ func (f *Framer) WriteData(streamID uint32, endStream bool, data []byte) error {
//
// If pad is nil, the padding bit is not sent.
// The length of pad must not exceed 255 bytes.
// The bytes of pad must all be zero, unless f.AllowIllegalWrites is set.
//
// It will perform exactly one Write to the underlying Writer.
// It is the caller's responsibility not to violate the maximum frame size
@ -631,8 +656,18 @@ func (f *Framer) WriteDataPadded(streamID uint32, endStream bool, data, pad []by
if !validStreamID(streamID) && !f.AllowIllegalWrites {
return errStreamID
}
if len(pad) > 255 {
return errPadLength
if len(pad) > 0 {
if len(pad) > 255 {
return errPadLength
}
if !f.AllowIllegalWrites {
for _, b := range pad {
if b != 0 {
// "Padding octets MUST be set to zero when sending."
return errPadBytes
}
}
}
}
var flags Flags
if endStream {
@ -660,10 +695,10 @@ type SettingsFrame struct {
p []byte
}
func parseSettingsFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseSettingsFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if fh.Flags.Has(FlagSettingsAck) && fh.Length > 0 {
// When this (ACK 0x1) bit is set, the payload of the
// SETTINGS frame MUST be empty. Receipt of a
// SETTINGS frame MUST be empty. Receipt of a
// SETTINGS frame with the ACK flag set and a length
// field value other than 0 MUST be treated as a
// connection error (Section 5.4.1) of type
@ -672,7 +707,7 @@ func parseSettingsFrame(fh FrameHeader, p []byte) (Frame, error) {
}
if fh.StreamID != 0 {
// SETTINGS frames always apply to a connection,
// never a single stream. The stream identifier for a
// never a single stream. The stream identifier for a
// SETTINGS frame MUST be zero (0x0). If an endpoint
// receives a SETTINGS frame whose stream identifier
// field is anything other than 0x0, the endpoint MUST
@ -762,7 +797,7 @@ type PingFrame struct {
func (f *PingFrame) IsAck() bool { return f.Flags.Has(FlagPingAck) }
func parsePingFrame(fh FrameHeader, payload []byte) (Frame, error) {
func parsePingFrame(_ *frameCache, fh FrameHeader, payload []byte) (Frame, error) {
if len(payload) != 8 {
return nil, ConnectionError(ErrCodeFrameSize)
}
@ -802,7 +837,7 @@ func (f *GoAwayFrame) DebugData() []byte {
return f.debugData
}
func parseGoAwayFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseGoAwayFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if fh.StreamID != 0 {
return nil, ConnectionError(ErrCodeProtocol)
}
@ -842,7 +877,7 @@ func (f *UnknownFrame) Payload() []byte {
return f.p
}
func parseUnknownFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseUnknownFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
return &UnknownFrame{fh, p}, nil
}
@ -853,7 +888,7 @@ type WindowUpdateFrame struct {
Increment uint32 // never read with high bit set
}
func parseWindowUpdateFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseWindowUpdateFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if len(p) != 4 {
return nil, ConnectionError(ErrCodeFrameSize)
}
@ -918,12 +953,12 @@ func (f *HeadersFrame) HasPriority() bool {
return f.FrameHeader.Flags.Has(FlagHeadersPriority)
}
func parseHeadersFrame(fh FrameHeader, p []byte) (_ Frame, err error) {
func parseHeadersFrame(_ *frameCache, fh FrameHeader, p []byte) (_ Frame, err error) {
hf := &HeadersFrame{
FrameHeader: fh,
}
if fh.StreamID == 0 {
// HEADERS frames MUST be associated with a stream. If a HEADERS frame
// HEADERS frames MUST be associated with a stream. If a HEADERS frame
// is received whose stream identifier field is 0x0, the recipient MUST
// respond with a connection error (Section 5.4.1) of type
// PROTOCOL_ERROR.
@ -1045,7 +1080,7 @@ type PriorityParam struct {
Exclusive bool
// Weight is the stream's zero-indexed weight. It should be
// set together with StreamDep, or neither should be set. Per
// set together with StreamDep, or neither should be set. Per
// the spec, "Add one to the value to obtain a weight between
// 1 and 256."
Weight uint8
@ -1055,7 +1090,7 @@ func (p PriorityParam) IsZero() bool {
return p == PriorityParam{}
}
func parsePriorityFrame(fh FrameHeader, payload []byte) (Frame, error) {
func parsePriorityFrame(_ *frameCache, fh FrameHeader, payload []byte) (Frame, error) {
if fh.StreamID == 0 {
return nil, connError{ErrCodeProtocol, "PRIORITY frame with stream ID 0"}
}
@ -1102,7 +1137,7 @@ type RSTStreamFrame struct {
ErrCode ErrCode
}
func parseRSTStreamFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseRSTStreamFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if len(p) != 4 {
return nil, ConnectionError(ErrCodeFrameSize)
}
@ -1132,7 +1167,7 @@ type ContinuationFrame struct {
headerFragBuf []byte
}
func parseContinuationFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseContinuationFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if fh.StreamID == 0 {
return nil, connError{ErrCodeProtocol, "CONTINUATION frame with stream ID 0"}
}
@ -1182,7 +1217,7 @@ func (f *PushPromiseFrame) HeadersEnded() bool {
return f.FrameHeader.Flags.Has(FlagPushPromiseEndHeaders)
}
func parsePushPromise(fh FrameHeader, p []byte) (_ Frame, err error) {
func parsePushPromise(_ *frameCache, fh FrameHeader, p []byte) (_ Frame, err error) {
pp := &PushPromiseFrame{
FrameHeader: fh,
}

27
vendor/golang.org/x/net/http2/go16.go generated vendored
View File

@ -7,7 +7,6 @@
package http2
import (
"crypto/tls"
"net/http"
"time"
)
@ -15,29 +14,3 @@ import (
func transportExpectContinueTimeout(t1 *http.Transport) time.Duration {
return t1.ExpectContinueTimeout
}
// isBadCipher reports whether the cipher is blacklisted by the HTTP/2 spec.
func isBadCipher(cipher uint16) bool {
switch cipher {
case tls.TLS_RSA_WITH_RC4_128_SHA,
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
// Reject cipher suites from Appendix A.
// "This list includes those cipher suites that do not
// offer an ephemeral key exchange and those that are
// based on the TLS null, stream or block cipher type"
return true
default:
return false
}
}

6
vendor/golang.org/x/net/http2/go18.go generated vendored
View File

@ -12,7 +12,11 @@ import (
"net/http"
)
func cloneTLSConfig(c *tls.Config) *tls.Config { return c.Clone() }
func cloneTLSConfig(c *tls.Config) *tls.Config {
c2 := c.Clone()
c2.GetClientCertificate = c.GetClientCertificate // golang.org/issue/19264
return c2
}
var _ http.Pusher = (*responseWriter)(nil)

16
vendor/golang.org/x/net/http2/go19.go generated vendored Normal file
View File

@ -0,0 +1,16 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
package http2
import (
"net/http"
)
func configureServer19(s *http.Server, conf *Server) error {
s.RegisterOnShutdown(conf.state.startGracefulShutdown)
return nil
}

29
vendor/golang.org/x/net/http2/hpack/encode.go generated vendored
View File

@ -39,13 +39,14 @@ func NewEncoder(w io.Writer) *Encoder {
tableSizeUpdate: false,
w: w,
}
e.dynTab.table.init()
e.dynTab.setMaxSize(initialHeaderTableSize)
return e
}
// WriteField encodes f into a single Write to e's underlying Writer.
// This function may also produce bytes for "Header Table Size Update"
// if necessary. If produced, it is done before encoding f.
// if necessary. If produced, it is done before encoding f.
func (e *Encoder) WriteField(f HeaderField) error {
e.buf = e.buf[:0]
@ -88,29 +89,17 @@ func (e *Encoder) WriteField(f HeaderField) error {
// only name matches, i points to that index and nameValueMatch
// becomes false.
func (e *Encoder) searchTable(f HeaderField) (i uint64, nameValueMatch bool) {
for idx, hf := range staticTable {
if !constantTimeStringCompare(hf.Name, f.Name) {
continue
}
if i == 0 {
i = uint64(idx + 1)
}
if f.Sensitive {
continue
}
if !constantTimeStringCompare(hf.Value, f.Value) {
continue
}
i = uint64(idx + 1)
nameValueMatch = true
return
i, nameValueMatch = staticTable.search(f)
if nameValueMatch {
return i, true
}
j, nameValueMatch := e.dynTab.search(f)
j, nameValueMatch := e.dynTab.table.search(f)
if nameValueMatch || (i == 0 && j != 0) {
i = j + uint64(len(staticTable))
return j + uint64(staticTable.len()), nameValueMatch
}
return
return i, false
}
// SetMaxDynamicTableSize changes the dynamic header table size to v.

104
vendor/golang.org/x/net/http2/hpack/hpack.go generated vendored
View File

@ -61,7 +61,7 @@ func (hf HeaderField) String() string {
func (hf HeaderField) Size() uint32 {
// http://http2.github.io/http2-spec/compression.html#rfc.section.4.1
// "The size of the dynamic table is the sum of the size of
// its entries. The size of an entry is the sum of its name's
// its entries. The size of an entry is the sum of its name's
// length in octets (as defined in Section 5.2), its value's
// length in octets (see Section 5.2), plus 32. The size of
// an entry is calculated using the length of the name and
@ -102,6 +102,7 @@ func NewDecoder(maxDynamicTableSize uint32, emitFunc func(f HeaderField)) *Decod
emit: emitFunc,
emitEnabled: true,
}
d.dynTab.table.init()
d.dynTab.allowedMaxSize = maxDynamicTableSize
d.dynTab.setMaxSize(maxDynamicTableSize)
return d
@ -154,12 +155,9 @@ func (d *Decoder) SetAllowedMaxDynamicTableSize(v uint32) {
}
type dynamicTable struct {
// ents is the FIFO described at
// http://http2.github.io/http2-spec/compression.html#rfc.section.2.3.2
// The newest (low index) is append at the end, and items are
// evicted from the front.
ents []HeaderField
size uint32
table headerFieldTable
size uint32 // in bytes
maxSize uint32 // current maxSize
allowedMaxSize uint32 // maxSize may go up to this, inclusive
}
@ -169,95 +167,45 @@ func (dt *dynamicTable) setMaxSize(v uint32) {
dt.evict()
}
// TODO: change dynamicTable to be a struct with a slice and a size int field,
// per http://http2.github.io/http2-spec/compression.html#rfc.section.4.1:
//
//
// Then make add increment the size. maybe the max size should move from Decoder to
// dynamicTable and add should return an ok bool if there was enough space.
//
// Later we'll need a remove operation on dynamicTable.
func (dt *dynamicTable) add(f HeaderField) {
dt.ents = append(dt.ents, f)
dt.table.addEntry(f)
dt.size += f.Size()
dt.evict()
}
// If we're too big, evict old stuff (front of the slice)
// If we're too big, evict old stuff.
func (dt *dynamicTable) evict() {
base := dt.ents // keep base pointer of slice
for dt.size > dt.maxSize {
dt.size -= dt.ents[0].Size()
dt.ents = dt.ents[1:]
var n int
for dt.size > dt.maxSize && n < dt.table.len() {
dt.size -= dt.table.ents[n].Size()
n++
}
// Shift slice contents down if we evicted things.
if len(dt.ents) != len(base) {
copy(base, dt.ents)
dt.ents = base[:len(dt.ents)]
}
}
// constantTimeStringCompare compares string a and b in a constant
// time manner.
func constantTimeStringCompare(a, b string) bool {
if len(a) != len(b) {
return false
}
c := byte(0)
for i := 0; i < len(a); i++ {
c |= a[i] ^ b[i]
}
return c == 0
}
// Search searches f in the table. The return value i is 0 if there is
// no name match. If there is name match or name/value match, i is the
// index of that entry (1-based). If both name and value match,
// nameValueMatch becomes true.
func (dt *dynamicTable) search(f HeaderField) (i uint64, nameValueMatch bool) {
l := len(dt.ents)
for j := l - 1; j >= 0; j-- {
ent := dt.ents[j]
if !constantTimeStringCompare(ent.Name, f.Name) {
continue
}
if i == 0 {
i = uint64(l - j)
}
if f.Sensitive {
continue
}
if !constantTimeStringCompare(ent.Value, f.Value) {
continue
}
i = uint64(l - j)
nameValueMatch = true
return
}
return
dt.table.evictOldest(n)
}
func (d *Decoder) maxTableIndex() int {
return len(d.dynTab.ents) + len(staticTable)
// This should never overflow. RFC 7540 Section 6.5.2 limits the size of
// the dynamic table to 2^32 bytes, where each entry will occupy more than
// one byte. Further, the staticTable has a fixed, small length.
return d.dynTab.table.len() + staticTable.len()
}
func (d *Decoder) at(i uint64) (hf HeaderField, ok bool) {
if i < 1 {
// See Section 2.3.3.
if i == 0 {
return
}
if i <= uint64(staticTable.len()) {
return staticTable.ents[i-1], true
}
if i > uint64(d.maxTableIndex()) {
return
}
if i <= uint64(len(staticTable)) {
return staticTable[i-1], true
}
dents := d.dynTab.ents
return dents[len(dents)-(int(i)-len(staticTable))], true
// In the dynamic table, newer entries have lower indices.
// However, dt.ents[0] is the oldest entry. Hence, dt.ents is
// the reversed dynamic table.
dt := d.dynTab.table
return dt.ents[dt.len()-(int(i)-staticTable.len())], true
}
// Decode decodes an entire block.
@ -307,7 +255,7 @@ func (d *Decoder) Write(p []byte) (n int, err error) {
err = d.parseHeaderFieldRepr()
if err == errNeedMore {
// Extra paranoia, making sure saveBuf won't
// get too large. All the varint and string
// get too large. All the varint and string
// reading code earlier should already catch
// overlong things and return ErrStringLength,
// but keep this as a last resort.

255
vendor/golang.org/x/net/http2/hpack/tables.go generated vendored
View File

@ -4,73 +4,200 @@
package hpack
func pair(name, value string) HeaderField {
return HeaderField{Name: name, Value: value}
import (
"fmt"
)
// headerFieldTable implements a list of HeaderFields.
// This is used to implement the static and dynamic tables.
type headerFieldTable struct {
// For static tables, entries are never evicted.
//
// For dynamic tables, entries are evicted from ents[0] and added to the end.
// Each entry has a unique id that starts at one and increments for each
// entry that is added. This unique id is stable across evictions, meaning
// it can be used as a pointer to a specific entry. As in hpack, unique ids
// are 1-based. The unique id for ents[k] is k + evictCount + 1.
//
// Zero is not a valid unique id.
//
// evictCount should not overflow in any remotely practical situation. In
// practice, we will have one dynamic table per HTTP/2 connection. If we
// assume a very powerful server that handles 1M QPS per connection and each
// request adds (then evicts) 100 entries from the table, it would still take
// 2M years for evictCount to overflow.
ents []HeaderField
evictCount uint64
// byName maps a HeaderField name to the unique id of the newest entry with
// the same name. See above for a definition of "unique id".
byName map[string]uint64
// byNameValue maps a HeaderField name/value pair to the unique id of the newest
// entry with the same name and value. See above for a definition of "unique id".
byNameValue map[pairNameValue]uint64
}
type pairNameValue struct {
name, value string
}
func (t *headerFieldTable) init() {
t.byName = make(map[string]uint64)
t.byNameValue = make(map[pairNameValue]uint64)
}
// len reports the number of entries in the table.
func (t *headerFieldTable) len() int {
return len(t.ents)
}
// addEntry adds a new entry.
func (t *headerFieldTable) addEntry(f HeaderField) {
id := uint64(t.len()) + t.evictCount + 1
t.byName[f.Name] = id
t.byNameValue[pairNameValue{f.Name, f.Value}] = id
t.ents = append(t.ents, f)
}
// evictOldest evicts the n oldest entries in the table.
func (t *headerFieldTable) evictOldest(n int) {
if n > t.len() {
panic(fmt.Sprintf("evictOldest(%v) on table with %v entries", n, t.len()))
}
for k := 0; k < n; k++ {
f := t.ents[k]
id := t.evictCount + uint64(k) + 1
if t.byName[f.Name] == id {
delete(t.byName, f.Name)
}
if p := (pairNameValue{f.Name, f.Value}); t.byNameValue[p] == id {
delete(t.byNameValue, p)
}
}
copy(t.ents, t.ents[n:])
for k := t.len() - n; k < t.len(); k++ {
t.ents[k] = HeaderField{} // so strings can be garbage collected
}
t.ents = t.ents[:t.len()-n]
if t.evictCount+uint64(n) < t.evictCount {
panic("evictCount overflow")
}
t.evictCount += uint64(n)
}
// search finds f in the table. If there is no match, i is 0.
// If both name and value match, i is the matched index and nameValueMatch
// becomes true. If only name matches, i points to that index and
// nameValueMatch becomes false.
//
// The returned index is a 1-based HPACK index. For dynamic tables, HPACK says
// that index 1 should be the newest entry, but t.ents[0] is the oldest entry,
// meaning t.ents is reversed for dynamic tables. Hence, when t is a dynamic
// table, the return value i actually refers to the entry t.ents[t.len()-i].
//
// All tables are assumed to be a dynamic tables except for the global
// staticTable pointer.
//
// See Section 2.3.3.
func (t *headerFieldTable) search(f HeaderField) (i uint64, nameValueMatch bool) {
if !f.Sensitive {
if id := t.byNameValue[pairNameValue{f.Name, f.Value}]; id != 0 {
return t.idToIndex(id), true
}
}
if id := t.byName[f.Name]; id != 0 {
return t.idToIndex(id), false
}
return 0, false
}
// idToIndex converts a unique id to an HPACK index.
// See Section 2.3.3.
func (t *headerFieldTable) idToIndex(id uint64) uint64 {
if id <= t.evictCount {
panic(fmt.Sprintf("id (%v) <= evictCount (%v)", id, t.evictCount))
}
k := id - t.evictCount - 1 // convert id to an index t.ents[k]
if t != staticTable {
return uint64(t.len()) - k // dynamic table
}
return k + 1
}
// http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07#appendix-B
var staticTable = [...]HeaderField{
pair(":authority", ""), // index 1 (1-based)
pair(":method", "GET"),
pair(":method", "POST"),
pair(":path", "/"),
pair(":path", "/index.html"),
pair(":scheme", "http"),
pair(":scheme", "https"),
pair(":status", "200"),
pair(":status", "204"),
pair(":status", "206"),
pair(":status", "304"),
pair(":status", "400"),
pair(":status", "404"),
pair(":status", "500"),
pair("accept-charset", ""),
pair("accept-encoding", "gzip, deflate"),
pair("accept-language", ""),
pair("accept-ranges", ""),
pair("accept", ""),
pair("access-control-allow-origin", ""),
pair("age", ""),
pair("allow", ""),
pair("authorization", ""),
pair("cache-control", ""),
pair("content-disposition", ""),
pair("content-encoding", ""),
pair("content-language", ""),
pair("content-length", ""),
pair("content-location", ""),
pair("content-range", ""),
pair("content-type", ""),
pair("cookie", ""),
pair("date", ""),
pair("etag", ""),
pair("expect", ""),
pair("expires", ""),
pair("from", ""),
pair("host", ""),
pair("if-match", ""),
pair("if-modified-since", ""),
pair("if-none-match", ""),
pair("if-range", ""),
pair("if-unmodified-since", ""),
pair("last-modified", ""),
pair("link", ""),
pair("location", ""),
pair("max-forwards", ""),
pair("proxy-authenticate", ""),
pair("proxy-authorization", ""),
pair("range", ""),
pair("referer", ""),
pair("refresh", ""),
pair("retry-after", ""),
pair("server", ""),
pair("set-cookie", ""),
pair("strict-transport-security", ""),
pair("transfer-encoding", ""),
pair("user-agent", ""),
pair("vary", ""),
pair("via", ""),
pair("www-authenticate", ""),
var staticTable = newStaticTable()
var staticTableEntries = [...]HeaderField{
{Name: ":authority"},
{Name: ":method", Value: "GET"},
{Name: ":method", Value: "POST"},
{Name: ":path", Value: "/"},
{Name: ":path", Value: "/index.html"},
{Name: ":scheme", Value: "http"},
{Name: ":scheme", Value: "https"},
{Name: ":status", Value: "200"},
{Name: ":status", Value: "204"},
{Name: ":status", Value: "206"},
{Name: ":status", Value: "304"},
{Name: ":status", Value: "400"},
{Name: ":status", Value: "404"},
{Name: ":status", Value: "500"},
{Name: "accept-charset"},
{Name: "accept-encoding", Value: "gzip, deflate"},
{Name: "accept-language"},
{Name: "accept-ranges"},
{Name: "accept"},
{Name: "access-control-allow-origin"},
{Name: "age"},
{Name: "allow"},
{Name: "authorization"},
{Name: "cache-control"},
{Name: "content-disposition"},
{Name: "content-encoding"},
{Name: "content-language"},
{Name: "content-length"},
{Name: "content-location"},
{Name: "content-range"},
{Name: "content-type"},
{Name: "cookie"},
{Name: "date"},
{Name: "etag"},
{Name: "expect"},
{Name: "expires"},
{Name: "from"},
{Name: "host"},
{Name: "if-match"},
{Name: "if-modified-since"},
{Name: "if-none-match"},
{Name: "if-range"},
{Name: "if-unmodified-since"},
{Name: "last-modified"},
{Name: "link"},
{Name: "location"},
{Name: "max-forwards"},
{Name: "proxy-authenticate"},
{Name: "proxy-authorization"},
{Name: "range"},
{Name: "referer"},
{Name: "refresh"},
{Name: "retry-after"},
{Name: "server"},
{Name: "set-cookie"},
{Name: "strict-transport-security"},
{Name: "transfer-encoding"},
{Name: "user-agent"},
{Name: "vary"},
{Name: "via"},
{Name: "www-authenticate"},
}
func newStaticTable() *headerFieldTable {
t := &headerFieldTable{}
t.init()
for _, e := range staticTableEntries[:] {
t.addEntry(e)
}
return t
}
var huffmanCodes = [256]uint32{

25
vendor/golang.org/x/net/http2/not_go16.go generated vendored
View File

@ -7,7 +7,6 @@
package http2
import (
"crypto/tls"
"net/http"
"time"
)
@ -20,27 +19,3 @@ func transportExpectContinueTimeout(t1 *http.Transport) time.Duration {
return 0
}
// isBadCipher reports whether the cipher is blacklisted by the HTTP/2 spec.
func isBadCipher(cipher uint16) bool {
switch cipher {
case tls.TLS_RSA_WITH_RC4_128_SHA,
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
// Reject cipher suites from Appendix A.
// "This list includes those cipher suites that do not
// offer an ephemeral key exchange and those that are
// based on the TLS null, stream or block cipher type"
return true
default:
return false
}
}

16
vendor/golang.org/x/net/http2/not_go19.go generated vendored Normal file
View File

@ -0,0 +1,16 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
package http2
import (
"net/http"
)
func configureServer19(s *http.Server, conf *Server) error {
// not supported prior to go1.9
return nil
}

16
vendor/golang.org/x/net/http2/pipe.go generated vendored
View File

@ -10,13 +10,13 @@ import (
"sync"
)
// pipe is a goroutine-safe io.Reader/io.Writer pair. It's like
// pipe is a goroutine-safe io.Reader/io.Writer pair. It's like
// io.Pipe except there are no PipeReader/PipeWriter halves, and the
// underlying buffer is an interface. (io.Pipe is always unbuffered)
type pipe struct {
mu sync.Mutex
c sync.Cond // c.L lazily initialized to &p.mu
b pipeBuffer
c sync.Cond // c.L lazily initialized to &p.mu
b pipeBuffer // nil when done reading
err error // read error once empty. non-nil means closed.
breakErr error // immediate read error (caller doesn't see rest of b)
donec chan struct{} // closed on error
@ -32,6 +32,9 @@ type pipeBuffer interface {
func (p *pipe) Len() int {
p.mu.Lock()
defer p.mu.Unlock()
if p.b == nil {
return 0
}
return p.b.Len()
}
@ -55,6 +58,7 @@ func (p *pipe) Read(d []byte) (n int, err error) {
p.readFn() // e.g. copy trailers
p.readFn = nil // not sticky like p.err
}
p.b = nil
return 0, p.err
}
p.c.Wait()
@ -75,6 +79,9 @@ func (p *pipe) Write(d []byte) (n int, err error) {
if p.err != nil {
return 0, errClosedPipeWrite
}
if p.breakErr != nil {
return len(d), nil // discard when there is no reader
}
return p.b.Write(d)
}
@ -109,6 +116,9 @@ func (p *pipe) closeWithError(dst *error, err error, fn func()) {
return
}
p.readFn = fn
if dst == &p.breakErr {
p.b = nil
}
*dst = err
p.closeDoneLocked()
}

421
vendor/golang.org/x/net/http2/server.go generated vendored
View File

@ -110,9 +110,41 @@ type Server struct {
// activity for the purposes of IdleTimeout.
IdleTimeout time.Duration
// MaxUploadBufferPerConnection is the size of the initial flow
// control window for each connections. The HTTP/2 spec does not
// allow this to be smaller than 65535 or larger than 2^32-1.
// If the value is outside this range, a default value will be
// used instead.
MaxUploadBufferPerConnection int32
// MaxUploadBufferPerStream is the size of the initial flow control
// window for each stream. The HTTP/2 spec does not allow this to
// be larger than 2^32-1. If the value is zero or larger than the
// maximum, a default value will be used instead.
MaxUploadBufferPerStream int32
// NewWriteScheduler constructs a write scheduler for a connection.
// If nil, a default scheduler is chosen.
NewWriteScheduler func() WriteScheduler
// Internal state. This is a pointer (rather than embedded directly)
// so that we don't embed a Mutex in this struct, which will make the
// struct non-copyable, which might break some callers.
state *serverInternalState
}
func (s *Server) initialConnRecvWindowSize() int32 {
if s.MaxUploadBufferPerConnection > initialWindowSize {
return s.MaxUploadBufferPerConnection
}
return 1 << 20
}
func (s *Server) initialStreamRecvWindowSize() int32 {
if s.MaxUploadBufferPerStream > 0 {
return s.MaxUploadBufferPerStream
}
return 1 << 20
}
func (s *Server) maxReadFrameSize() uint32 {
@ -129,6 +161,40 @@ func (s *Server) maxConcurrentStreams() uint32 {
return defaultMaxStreams
}
type serverInternalState struct {
mu sync.Mutex
activeConns map[*serverConn]struct{}
}
func (s *serverInternalState) registerConn(sc *serverConn) {
if s == nil {
return // if the Server was used without calling ConfigureServer
}
s.mu.Lock()
s.activeConns[sc] = struct{}{}
s.mu.Unlock()
}
func (s *serverInternalState) unregisterConn(sc *serverConn) {
if s == nil {
return // if the Server was used without calling ConfigureServer
}
s.mu.Lock()
delete(s.activeConns, sc)
s.mu.Unlock()
}
func (s *serverInternalState) startGracefulShutdown() {
if s == nil {
return // if the Server was used without calling ConfigureServer
}
s.mu.Lock()
for sc := range s.activeConns {
sc.startGracefulShutdown()
}
s.mu.Unlock()
}
// ConfigureServer adds HTTP/2 support to a net/http Server.
//
// The configuration conf may be nil.
@ -141,9 +207,13 @@ func ConfigureServer(s *http.Server, conf *Server) error {
if conf == nil {
conf = new(Server)
}
conf.state = &serverInternalState{activeConns: make(map[*serverConn]struct{})}
if err := configureServer18(s, conf); err != nil {
return err
}
if err := configureServer19(s, conf); err != nil {
return err
}
if s.TLSConfig == nil {
s.TLSConfig = new(tls.Config)
@ -255,35 +325,37 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) {
defer cancel()
sc := &serverConn{
srv: s,
hs: opts.baseConfig(),
conn: c,
baseCtx: baseCtx,
remoteAddrStr: c.RemoteAddr().String(),
bw: newBufferedWriter(c),
handler: opts.handler(),
streams: make(map[uint32]*stream),
readFrameCh: make(chan readFrameResult),
wantWriteFrameCh: make(chan FrameWriteRequest, 8),
wantStartPushCh: make(chan startPushRequest, 8),
wroteFrameCh: make(chan frameWriteResult, 1), // buffered; one send in writeFrameAsync
bodyReadCh: make(chan bodyReadMsg), // buffering doesn't matter either way
doneServing: make(chan struct{}),
clientMaxStreams: math.MaxUint32, // Section 6.5.2: "Initially, there is no limit to this value"
advMaxStreams: s.maxConcurrentStreams(),
initialWindowSize: initialWindowSize,
maxFrameSize: initialMaxFrameSize,
headerTableSize: initialHeaderTableSize,
serveG: newGoroutineLock(),
pushEnabled: true,
srv: s,
hs: opts.baseConfig(),
conn: c,
baseCtx: baseCtx,
remoteAddrStr: c.RemoteAddr().String(),
bw: newBufferedWriter(c),
handler: opts.handler(),
streams: make(map[uint32]*stream),
readFrameCh: make(chan readFrameResult),
wantWriteFrameCh: make(chan FrameWriteRequest, 8),
serveMsgCh: make(chan interface{}, 8),
wroteFrameCh: make(chan frameWriteResult, 1), // buffered; one send in writeFrameAsync
bodyReadCh: make(chan bodyReadMsg), // buffering doesn't matter either way
doneServing: make(chan struct{}),
clientMaxStreams: math.MaxUint32, // Section 6.5.2: "Initially, there is no limit to this value"
advMaxStreams: s.maxConcurrentStreams(),
initialStreamSendWindowSize: initialWindowSize,
maxFrameSize: initialMaxFrameSize,
headerTableSize: initialHeaderTableSize,
serveG: newGoroutineLock(),
pushEnabled: true,
}
s.state.registerConn(sc)
defer s.state.unregisterConn(sc)
// The net/http package sets the write deadline from the
// http.Server.WriteTimeout during the TLS handshake, but then
// passes the connection off to us with the deadline already
// set. Disarm it here so that it is not applied to additional
// streams opened on this connection.
// TODO: implement WriteTimeout fully. See Issue 18437.
// passes the connection off to us with the deadline already set.
// Write deadlines are set per stream in serverConn.newStream.
// Disarm the net.Conn write deadline here.
if sc.hs.WriteTimeout != 0 {
sc.conn.SetWriteDeadline(time.Time{})
}
@ -294,6 +366,9 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) {
sc.writeSched = NewRandomWriteScheduler()
}
// These start at the RFC-specified defaults. If there is a higher
// configured value for inflow, that will be updated when we send a
// WINDOW_UPDATE shortly after sending SETTINGS.
sc.flow.add(initialWindowSize)
sc.inflow.add(initialWindowSize)
sc.hpackEncoder = hpack.NewEncoder(&sc.headerWriteBuf)
@ -376,10 +451,9 @@ type serverConn struct {
doneServing chan struct{} // closed when serverConn.serve ends
readFrameCh chan readFrameResult // written by serverConn.readFrames
wantWriteFrameCh chan FrameWriteRequest // from handlers -> serve
wantStartPushCh chan startPushRequest // from handlers -> serve
wroteFrameCh chan frameWriteResult // from writeFrameAsync -> serve, tickles more frame writes
bodyReadCh chan bodyReadMsg // from handlers -> serve
testHookCh chan func(int) // code to run on the serve loop
serveMsgCh chan interface{} // misc messages & code to send to / run on the serve loop
flow flow // conn-wide (not stream-specific) outbound flow control
inflow flow // conn-wide inbound flow control
tlsState *tls.ConnectionState // shared by all handlers, like net/http
@ -387,38 +461,39 @@ type serverConn struct {
writeSched WriteScheduler
// Everything following is owned by the serve loop; use serveG.check():
serveG goroutineLock // used to verify funcs are on serve()
pushEnabled bool
sawFirstSettings bool // got the initial SETTINGS frame after the preface
needToSendSettingsAck bool
unackedSettings int // how many SETTINGS have we sent without ACKs?
clientMaxStreams uint32 // SETTINGS_MAX_CONCURRENT_STREAMS from client (our PUSH_PROMISE limit)
advMaxStreams uint32 // our SETTINGS_MAX_CONCURRENT_STREAMS advertised the client
curClientStreams uint32 // number of open streams initiated by the client
curPushedStreams uint32 // number of open streams initiated by server push
maxClientStreamID uint32 // max ever seen from client (odd), or 0 if there have been no client requests
maxPushPromiseID uint32 // ID of the last push promise (even), or 0 if there have been no pushes
streams map[uint32]*stream
initialWindowSize int32
maxFrameSize int32
headerTableSize uint32
peerMaxHeaderListSize uint32 // zero means unknown (default)
canonHeader map[string]string // http2-lower-case -> Go-Canonical-Case
writingFrame bool // started writing a frame (on serve goroutine or separate)
writingFrameAsync bool // started a frame on its own goroutine but haven't heard back on wroteFrameCh
needsFrameFlush bool // last frame write wasn't a flush
inGoAway bool // we've started to or sent GOAWAY
inFrameScheduleLoop bool // whether we're in the scheduleFrameWrite loop
needToSendGoAway bool // we need to schedule a GOAWAY frame write
goAwayCode ErrCode
shutdownTimerCh <-chan time.Time // nil until used
shutdownTimer *time.Timer // nil until used
idleTimer *time.Timer // nil if unused
idleTimerCh <-chan time.Time // nil if unused
serveG goroutineLock // used to verify funcs are on serve()
pushEnabled bool
sawFirstSettings bool // got the initial SETTINGS frame after the preface
needToSendSettingsAck bool
unackedSettings int // how many SETTINGS have we sent without ACKs?
clientMaxStreams uint32 // SETTINGS_MAX_CONCURRENT_STREAMS from client (our PUSH_PROMISE limit)
advMaxStreams uint32 // our SETTINGS_MAX_CONCURRENT_STREAMS advertised the client
curClientStreams uint32 // number of open streams initiated by the client
curPushedStreams uint32 // number of open streams initiated by server push
maxClientStreamID uint32 // max ever seen from client (odd), or 0 if there have been no client requests
maxPushPromiseID uint32 // ID of the last push promise (even), or 0 if there have been no pushes
streams map[uint32]*stream
initialStreamSendWindowSize int32
maxFrameSize int32
headerTableSize uint32
peerMaxHeaderListSize uint32 // zero means unknown (default)
canonHeader map[string]string // http2-lower-case -> Go-Canonical-Case
writingFrame bool // started writing a frame (on serve goroutine or separate)
writingFrameAsync bool // started a frame on its own goroutine but haven't heard back on wroteFrameCh
needsFrameFlush bool // last frame write wasn't a flush
inGoAway bool // we've started to or sent GOAWAY
inFrameScheduleLoop bool // whether we're in the scheduleFrameWrite loop
needToSendGoAway bool // we need to schedule a GOAWAY frame write
goAwayCode ErrCode
shutdownTimer *time.Timer // nil until used
idleTimer *time.Timer // nil if unused
// Owned by the writeFrameAsync goroutine:
headerWriteBuf bytes.Buffer
hpackEncoder *hpack.Encoder
// Used by startGracefulShutdown.
shutdownOnce sync.Once
}
func (sc *serverConn) maxHeaderListSize() uint32 {
@ -463,10 +538,10 @@ type stream struct {
numTrailerValues int64
weight uint8
state streamState
resetQueued bool // RST_STREAM queued for write; set by sc.resetStream
gotTrailerHeader bool // HEADER frame for trailers was seen
wroteHeaders bool // whether we wrote headers (not status 100)
reqBuf []byte // if non-nil, body pipe buffer to return later at EOF
resetQueued bool // RST_STREAM queued for write; set by sc.resetStream
gotTrailerHeader bool // HEADER frame for trailers was seen
wroteHeaders bool // whether we wrote headers (not status 100)
writeDeadline *time.Timer // nil if unused
trailer http.Header // accumulated trailers
reqTrailer http.Header // handler's Request.Trailer
@ -696,48 +771,48 @@ func (sc *serverConn) serve() {
{SettingMaxFrameSize, sc.srv.maxReadFrameSize()},
{SettingMaxConcurrentStreams, sc.advMaxStreams},
{SettingMaxHeaderListSize, sc.maxHeaderListSize()},
// TODO: more actual settings, notably
// SettingInitialWindowSize, but then we also
// want to bump up the conn window size the
// same amount here right after the settings
{SettingInitialWindowSize, uint32(sc.srv.initialStreamRecvWindowSize())},
},
})
sc.unackedSettings++
// Each connection starts with intialWindowSize inflow tokens.
// If a higher value is configured, we add more tokens.
if diff := sc.srv.initialConnRecvWindowSize() - initialWindowSize; diff > 0 {
sc.sendWindowUpdate(nil, int(diff))
}
if err := sc.readPreface(); err != nil {
sc.condlogf(err, "http2: server: error reading preface from client %v: %v", sc.conn.RemoteAddr(), err)
return
}
// Now that we've got the preface, get us out of the
// "StateNew" state. We can't go directly to idle, though.
// "StateNew" state. We can't go directly to idle, though.
// Active means we read some data and anticipate a request. We'll
// do another Active when we get a HEADERS frame.
sc.setConnState(http.StateActive)
sc.setConnState(http.StateIdle)
if sc.srv.IdleTimeout != 0 {
sc.idleTimer = time.NewTimer(sc.srv.IdleTimeout)
sc.idleTimer = time.AfterFunc(sc.srv.IdleTimeout, sc.onIdleTimer)
defer sc.idleTimer.Stop()
sc.idleTimerCh = sc.idleTimer.C
}
var gracefulShutdownCh <-chan struct{}
if sc.hs != nil {
gracefulShutdownCh = h1ServerShutdownChan(sc.hs)
}
go sc.readFrames() // closed by defer sc.conn.Close above
settingsTimer := time.NewTimer(firstSettingsTimeout)
settingsTimer := time.AfterFunc(firstSettingsTimeout, sc.onSettingsTimer)
defer settingsTimer.Stop()
loopNum := 0
for {
loopNum++
select {
case wr := <-sc.wantWriteFrameCh:
if se, ok := wr.write.(StreamError); ok {
sc.resetStream(se)
break
}
sc.writeFrame(wr)
case spr := <-sc.wantStartPushCh:
sc.startPush(spr)
case res := <-sc.wroteFrameCh:
sc.wroteFrame(res)
case res := <-sc.readFrameCh:
@ -745,26 +820,37 @@ func (sc *serverConn) serve() {
return
}
res.readMore()
if settingsTimer.C != nil {
if settingsTimer != nil {
settingsTimer.Stop()
settingsTimer.C = nil
settingsTimer = nil
}
case m := <-sc.bodyReadCh:
sc.noteBodyRead(m.st, m.n)
case <-settingsTimer.C:
sc.logf("timeout waiting for SETTINGS frames from %v", sc.conn.RemoteAddr())
return
case <-gracefulShutdownCh:
gracefulShutdownCh = nil
sc.startGracefulShutdown()
case <-sc.shutdownTimerCh:
sc.vlogf("GOAWAY close timer fired; closing conn from %v", sc.conn.RemoteAddr())
return
case <-sc.idleTimerCh:
sc.vlogf("connection is idle")
sc.goAway(ErrCodeNo)
case fn := <-sc.testHookCh:
fn(loopNum)
case msg := <-sc.serveMsgCh:
switch v := msg.(type) {
case func(int):
v(loopNum) // for testing
case *serverMessage:
switch v {
case settingsTimerMsg:
sc.logf("timeout waiting for SETTINGS frames from %v", sc.conn.RemoteAddr())
return
case idleTimerMsg:
sc.vlogf("connection is idle")
sc.goAway(ErrCodeNo)
case shutdownTimerMsg:
sc.vlogf("GOAWAY close timer fired; closing conn from %v", sc.conn.RemoteAddr())
return
case gracefulShutdownMsg:
sc.startGracefulShutdownInternal()
default:
panic("unknown timer")
}
case *startPushRequest:
sc.startPush(v)
default:
panic(fmt.Sprintf("unexpected type %T", v))
}
}
if sc.inGoAway && sc.curOpenStreams() == 0 && !sc.needToSendGoAway && !sc.writingFrame {
@ -773,6 +859,36 @@ func (sc *serverConn) serve() {
}
}
func (sc *serverConn) awaitGracefulShutdown(sharedCh <-chan struct{}, privateCh chan struct{}) {
select {
case <-sc.doneServing:
case <-sharedCh:
close(privateCh)
}
}
type serverMessage int
// Message values sent to serveMsgCh.
var (
settingsTimerMsg = new(serverMessage)
idleTimerMsg = new(serverMessage)
shutdownTimerMsg = new(serverMessage)
gracefulShutdownMsg = new(serverMessage)
)
func (sc *serverConn) onSettingsTimer() { sc.sendServeMsg(settingsTimerMsg) }
func (sc *serverConn) onIdleTimer() { sc.sendServeMsg(idleTimerMsg) }
func (sc *serverConn) onShutdownTimer() { sc.sendServeMsg(shutdownTimerMsg) }
func (sc *serverConn) sendServeMsg(msg interface{}) {
sc.serveG.checkNotOn() // NOT
select {
case sc.serveMsgCh <- msg:
case <-sc.doneServing:
}
}
// readPreface reads the ClientPreface greeting from the peer
// or returns an error on timeout or an invalid greeting.
func (sc *serverConn) readPreface() error {
@ -1014,7 +1130,11 @@ func (sc *serverConn) wroteFrame(res frameWriteResult) {
// stateClosed after the RST_STREAM frame is
// written.
st.state = stateHalfClosedLocal
sc.resetStream(streamError(st.id, ErrCodeCancel))
// Section 8.1: a server MAY request that the client abort
// transmission of a request without error by sending a
// RST_STREAM with an error code of NO_ERROR after sending
// a complete response.
sc.resetStream(streamError(st.id, ErrCodeNo))
case stateHalfClosedRemote:
sc.closeStream(st, errHandlerComplete)
}
@ -1086,10 +1206,19 @@ func (sc *serverConn) scheduleFrameWrite() {
sc.inFrameScheduleLoop = false
}
// startGracefulShutdown sends a GOAWAY with ErrCodeNo to tell the
// client we're gracefully shutting down. The connection isn't closed
// until all current streams are done.
// startGracefulShutdown gracefully shuts down a connection. This
// sends GOAWAY with ErrCodeNo to tell the client we're gracefully
// shutting down. The connection isn't closed until all current
// streams are done.
//
// startGracefulShutdown returns immediately; it does not wait until
// the connection has shut down.
func (sc *serverConn) startGracefulShutdown() {
sc.serveG.checkNotOn() // NOT
sc.shutdownOnce.Do(func() { sc.sendServeMsg(gracefulShutdownMsg) })
}
func (sc *serverConn) startGracefulShutdownInternal() {
sc.goAwayIn(ErrCodeNo, 0)
}
@ -1121,8 +1250,7 @@ func (sc *serverConn) goAwayIn(code ErrCode, forceCloseIn time.Duration) {
func (sc *serverConn) shutDownIn(d time.Duration) {
sc.serveG.check()
sc.shutdownTimer = time.NewTimer(d)
sc.shutdownTimerCh = sc.shutdownTimer.C
sc.shutdownTimer = time.AfterFunc(d, sc.onShutdownTimer)
}
func (sc *serverConn) resetStream(se StreamError) {
@ -1305,6 +1433,9 @@ func (sc *serverConn) closeStream(st *stream, err error) {
panic(fmt.Sprintf("invariant; can't close stream in state %v", st.state))
}
st.state = stateClosed
if st.writeDeadline != nil {
st.writeDeadline.Stop()
}
if st.isPushed() {
sc.curPushedStreams--
} else {
@ -1317,7 +1448,7 @@ func (sc *serverConn) closeStream(st *stream, err error) {
sc.idleTimer.Reset(sc.srv.IdleTimeout)
}
if h1ServerKeepAlivesDisabled(sc.hs) {
sc.startGracefulShutdown()
sc.startGracefulShutdownInternal()
}
}
if p := st.body; p != nil {
@ -1395,9 +1526,9 @@ func (sc *serverConn) processSettingInitialWindowSize(val uint32) error {
// adjust the size of all stream flow control windows that it
// maintains by the difference between the new value and the
// old value."
old := sc.initialWindowSize
sc.initialWindowSize = int32(val)
growth := sc.initialWindowSize - old // may be negative
old := sc.initialStreamSendWindowSize
sc.initialStreamSendWindowSize = int32(val)
growth := int32(val) - old // may be negative
for _, st := range sc.streams {
if !st.flow.add(growth) {
// 6.9.2 Initial Flow Control Window Size
@ -1504,7 +1635,7 @@ func (sc *serverConn) processGoAway(f *GoAwayFrame) error {
} else {
sc.vlogf("http2: received GOAWAY %+v, starting graceful shutdown", f)
}
sc.startGracefulShutdown()
sc.startGracefulShutdownInternal()
// http://tools.ietf.org/html/rfc7540#section-6.8
// We should not create any new streams, which means we should disable push.
sc.pushEnabled = false
@ -1543,6 +1674,12 @@ func (st *stream) copyTrailersToHandlerRequest() {
}
}
// onWriteTimeout is run on its own goroutine (from time.AfterFunc)
// when the stream's WriteTimeout has fired.
func (st *stream) onWriteTimeout() {
st.sc.writeFrameFromHandler(FrameWriteRequest{write: streamError(st.id, ErrCodeInternal)})
}
func (sc *serverConn) processHeaders(f *MetaHeadersFrame) error {
sc.serveG.check()
id := f.StreamID
@ -1719,9 +1856,12 @@ func (sc *serverConn) newStream(id, pusherID uint32, state streamState) *stream
}
st.cw.Init()
st.flow.conn = &sc.flow // link to conn-level counter
st.flow.add(sc.initialWindowSize)
st.inflow.conn = &sc.inflow // link to conn-level counter
st.inflow.add(initialWindowSize) // TODO: update this when we send a higher initial window size in the initial settings
st.flow.add(sc.initialStreamSendWindowSize)
st.inflow.conn = &sc.inflow // link to conn-level counter
st.inflow.add(sc.srv.initialStreamRecvWindowSize())
if sc.hs.WriteTimeout != 0 {
st.writeDeadline = time.AfterFunc(sc.hs.WriteTimeout, st.onWriteTimeout)
}
sc.streams[id] = st
sc.writeSched.OpenStream(st.id, OpenStreamOptions{PusherID: pusherID})
@ -1785,16 +1925,14 @@ func (sc *serverConn) newWriterAndRequest(st *stream, f *MetaHeadersFrame) (*res
return nil, nil, err
}
if bodyOpen {
st.reqBuf = getRequestBodyBuf()
req.Body.(*requestBody).pipe = &pipe{
b: &fixedBuffer{buf: st.reqBuf},
}
if vv, ok := rp.header["Content-Length"]; ok {
req.ContentLength, _ = strconv.ParseInt(vv[0], 10, 64)
} else {
req.ContentLength = -1
}
req.Body.(*requestBody).pipe = &pipe{
b: &dataBuffer{expected: req.ContentLength},
}
}
return rw, req, nil
}
@ -1890,24 +2028,6 @@ func (sc *serverConn) newWriterAndRequestNoBody(st *stream, rp requestParam) (*r
return rw, req, nil
}
var reqBodyCache = make(chan []byte, 8)
func getRequestBodyBuf() []byte {
select {
case b := <-reqBodyCache:
return b
default:
return make([]byte, initialWindowSize)
}
}
func putRequestBodyBuf(b []byte) {
select {
case reqBodyCache <- b:
default:
}
}
// Run on its own goroutine.
func (sc *serverConn) runHandler(rw *responseWriter, req *http.Request, handler func(http.ResponseWriter, *http.Request)) {
didPanic := true
@ -2003,12 +2123,6 @@ func (sc *serverConn) noteBodyReadFromHandler(st *stream, n int, err error) {
case <-sc.doneServing:
}
}
if err == io.EOF {
if buf := st.reqBuf; buf != nil {
st.reqBuf = nil // shouldn't matter; field unused by other
putRequestBodyBuf(buf)
}
}
}
func (sc *serverConn) noteBodyRead(st *stream, n int) {
@ -2103,8 +2217,8 @@ func (b *requestBody) Read(p []byte) (n int, err error) {
return
}
// responseWriter is the http.ResponseWriter implementation. It's
// intentionally small (1 pointer wide) to minimize garbage. The
// responseWriter is the http.ResponseWriter implementation. It's
// intentionally small (1 pointer wide) to minimize garbage. The
// responseWriterState pointer inside is zeroed at the end of a
// request (in handlerDone) and calls on the responseWriter thereafter
// simply crash (caller's mistake), but the much larger responseWriterState
@ -2278,7 +2392,7 @@ const TrailerPrefix = "Trailer:"
// says you SHOULD (but not must) predeclare any trailers in the
// header, the official ResponseWriter rules said trailers in Go must
// be predeclared, and then we reuse the same ResponseWriter.Header()
// map to mean both Headers and Trailers. When it's time to write the
// map to mean both Headers and Trailers. When it's time to write the
// Trailers, we pick out the fields of Headers that were declared as
// trailers. That worked for a while, until we found the first major
// user of Trailers in the wild: gRPC (using them only over http2),
@ -2514,7 +2628,7 @@ func (w *responseWriter) push(target string, opts pushOptions) error {
return fmt.Errorf("method %q must be GET or HEAD", opts.Method)
}
msg := startPushRequest{
msg := &startPushRequest{
parent: st,
method: opts.Method,
url: u,
@ -2527,7 +2641,7 @@ func (w *responseWriter) push(target string, opts pushOptions) error {
return errClientDisconnected
case <-st.cw:
return errStreamClosed
case sc.wantStartPushCh <- msg:
case sc.serveMsgCh <- msg:
}
select {
@ -2549,7 +2663,7 @@ type startPushRequest struct {
done chan error
}
func (sc *serverConn) startPush(msg startPushRequest) {
func (sc *serverConn) startPush(msg *startPushRequest) {
sc.serveG.check()
// http://tools.ietf.org/html/rfc7540#section-6.6.
@ -2588,7 +2702,7 @@ func (sc *serverConn) startPush(msg startPushRequest) {
// A server that is unable to establish a new stream identifier can send a GOAWAY
// frame so that the client is forced to open a new connection for new streams.
if sc.maxPushPromiseID+2 >= 1<<31 {
sc.startGracefulShutdown()
sc.startGracefulShutdownInternal()
return 0, ErrPushLimitReached
}
sc.maxPushPromiseID += 2
@ -2713,31 +2827,6 @@ var badTrailer = map[string]bool{
"Www-Authenticate": true,
}
// h1ServerShutdownChan returns a channel that will be closed when the
// provided *http.Server wants to shut down.
//
// This is a somewhat hacky way to get at http1 innards. It works
// when the http2 code is bundled into the net/http package in the
// standard library. The alternatives ended up making the cmd/go tool
// depend on http Servers. This is the lightest option for now.
// This is tested via the TestServeShutdown* tests in net/http.
func h1ServerShutdownChan(hs *http.Server) <-chan struct{} {
if fn := testh1ServerShutdownChan; fn != nil {
return fn(hs)
}
var x interface{} = hs
type I interface {
getDoneChan() <-chan struct{}
}
if hs, ok := x.(I); ok {
return hs.getDoneChan()
}
return nil
}
// optional test hook for h1ServerShutdownChan.
var testh1ServerShutdownChan func(hs *http.Server) <-chan struct{}
// h1ServerKeepAlivesDisabled reports whether hs has its keep-alives
// disabled. See comments on h1ServerShutdownChan above for why
// the code is written this way.

16
vendor/golang.org/x/net/http2/transport.go generated vendored
View File

@ -575,7 +575,7 @@ func (cc *ClientConn) canTakeNewRequestLocked() bool {
cc.nextStreamID < math.MaxInt32
}
// onIdleTimeout is called from a time.AfterFunc goroutine. It will
// onIdleTimeout is called from a time.AfterFunc goroutine. It will
// only be called when we're idle, but because we're coming from a new
// goroutine, there could be a new request coming in at the same time,
// so this simply calls the synchronized closeIfIdle to shut down this
@ -809,8 +809,8 @@ func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) {
// 2xx, however, then assume the server DOES potentially
// want our body (e.g. full-duplex streaming:
// golang.org/issue/13444). If it turns out the server
// doesn't, they'll RST_STREAM us soon enough. This is a
// heuristic to avoid adding knobs to Transport. Hopefully
// doesn't, they'll RST_STREAM us soon enough. This is a
// heuristic to avoid adding knobs to Transport. Hopefully
// we can keep it.
bodyWriter.cancel()
cs.abortRequestBodyWrite(errStopReqBodyWrite)
@ -1528,8 +1528,7 @@ func (rl *clientConnReadLoop) handleResponse(cs *clientStream, f *MetaHeadersFra
return res, nil
}
buf := new(bytes.Buffer) // TODO(bradfitz): recycle this garbage
cs.bufPipe = pipe{b: buf}
cs.bufPipe = pipe{b: &dataBuffer{expected: res.ContentLength}}
cs.bytesRemain = res.ContentLength
res.Body = transportResponseBody{cs}
go cs.awaitRequestCancel(cs.req)
@ -1656,6 +1655,7 @@ func (b transportResponseBody) Close() error {
cc.wmu.Lock()
if !serverSentStreamEnd {
cc.fr.WriteRSTStream(cs.ID, ErrCodeCancel)
cs.didReset = true
}
// Return connection-level flow control.
if unread > 0 {
@ -1703,12 +1703,6 @@ func (rl *clientConnReadLoop) processData(f *DataFrame) error {
return nil
}
if f.Length > 0 {
if len(data) > 0 && cs.bufPipe.b == nil {
// Data frame after it's already closed?
cc.logf("http2: Transport received DATA frame for closed stream; closing connection")
return ConnectionError(ErrCodeProtocol)
}
// Check connection-level flow control.
cc.mu.Lock()
if cs.inflow.available() >= int32(f.Length) {

2
vendor/golang.org/x/net/http2/writesched_priority.go generated vendored
View File

@ -53,7 +53,7 @@ type PriorityWriteSchedulerConfig struct {
}
// NewPriorityWriteScheduler constructs a WriteScheduler that schedules
// frames by following HTTP/2 priorities as described in RFC 7340 Section 5.3.
// frames by following HTTP/2 priorities as described in RFC 7540 Section 5.3.
// If cfg is nil, default options are used.
func NewPriorityWriteScheduler(cfg *PriorityWriteSchedulerConfig) WriteScheduler {
if cfg == nil {

390
vendor/golang.org/x/net/idna/idna.go generated vendored
View File

@ -1,4 +1,4 @@
// Copied from the golang.org/x/text repo; DO NOT EDIT
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
@ -39,27 +39,24 @@ import (
// error in the future.
// I think Option 1 is best, but it is quite opinionated.
// ToASCII converts a domain or domain label to its ASCII form. For example,
// ToASCII("bücher.example.com") is "xn--bcher-kva.example.com", and
// ToASCII("golang") is "golang". If an error is encountered it will return
// an error and a (partially) processed result.
// ToASCII is a wrapper for Punycode.ToASCII.
func ToASCII(s string) (string, error) {
return Resolve.process(s, true)
return Punycode.process(s, true)
}
// ToUnicode converts a domain or domain label to its Unicode form. For example,
// ToUnicode("xn--bcher-kva.example.com") is "bücher.example.com", and
// ToUnicode("golang") is "golang". If an error is encountered it will return
// an error and a (partially) processed result.
// ToUnicode is a wrapper for Punycode.ToUnicode.
func ToUnicode(s string) (string, error) {
return NonTransitional.process(s, false)
return Punycode.process(s, false)
}
// An Option configures a Profile at creation time.
type Option func(*options)
// Transitional sets a Profile to use the Transitional mapping as defined
// in UTS #46.
// Transitional sets a Profile to use the Transitional mapping as defined in UTS
// #46. This will cause, for example, "ß" to be mapped to "ss". Using the
// transitional mapping provides a compromise between IDNA2003 and IDNA2008
// compatibility. It is used by most browsers when resolving domain names. This
// option is only meaningful if combined with MapForLookup.
func Transitional(transitional bool) Option {
return func(o *options) { o.transitional = true }
}
@ -70,19 +67,93 @@ func VerifyDNSLength(verify bool) Option {
return func(o *options) { o.verifyDNSLength = verify }
}
// IgnoreSTD3Rules sets whether ASCII characters outside the A-Z, a-z, 0-9 and
// the hyphen should be allowed. By default this is not allowed, but IDNA2003,
// and as a consequence UTS #46, allows this to be overridden to support
// browsers that allow characters outside this range, for example a '_' (U+005F
// LOW LINE). See http://www.rfc- editor.org/std/std3.txt for more details.
func IgnoreSTD3Rules(ignore bool) Option {
return func(o *options) { o.ignoreSTD3Rules = ignore }
// ValidateLabels sets whether to check the mandatory label validation criteria
// as defined in Section 5.4 of RFC 5891. This includes testing for correct use
// of hyphens ('-'), normalization, validity of runes, and the context rules.
func ValidateLabels(enable bool) Option {
return func(o *options) {
// Don't override existing mappings, but set one that at least checks
// normalization if it is not set.
if o.mapping == nil && enable {
o.mapping = normalize
}
o.trie = trie
o.validateLabels = enable
o.fromPuny = validateFromPunycode
}
}
// StrictDomainName limits the set of permissable ASCII characters to those
// allowed in domain names as defined in RFC 1034 (A-Z, a-z, 0-9 and the
// hyphen). This is set by default for MapForLookup and ValidateForRegistration.
//
// This option is useful, for instance, for browsers that allow characters
// outside this range, for example a '_' (U+005F LOW LINE). See
// http://www.rfc-editor.org/std/std3.txt for more details This option
// corresponds to the UseSTD3ASCIIRules option in UTS #46.
func StrictDomainName(use bool) Option {
return func(o *options) {
o.trie = trie
o.useSTD3Rules = use
o.fromPuny = validateFromPunycode
}
}
// NOTE: the following options pull in tables. The tables should not be linked
// in as long as the options are not used.
// BidiRule enables the Bidi rule as defined in RFC 5893. Any application
// that relies on proper validation of labels should include this rule.
func BidiRule() Option {
return func(o *options) { o.bidirule = bidirule.ValidString }
}
// ValidateForRegistration sets validation options to verify that a given IDN is
// properly formatted for registration as defined by Section 4 of RFC 5891.
func ValidateForRegistration() Option {
return func(o *options) {
o.mapping = validateRegistration
StrictDomainName(true)(o)
ValidateLabels(true)(o)
VerifyDNSLength(true)(o)
BidiRule()(o)
}
}
// MapForLookup sets validation and mapping options such that a given IDN is
// transformed for domain name lookup according to the requirements set out in
// Section 5 of RFC 5891. The mappings follow the recommendations of RFC 5894,
// RFC 5895 and UTS 46. It does not add the Bidi Rule. Use the BidiRule option
// to add this check.
//
// The mappings include normalization and mapping case, width and other
// compatibility mappings.
func MapForLookup() Option {
return func(o *options) {
o.mapping = validateAndMap
StrictDomainName(true)(o)
ValidateLabels(true)(o)
}
}
type options struct {
transitional bool
ignoreSTD3Rules bool
useSTD3Rules bool
validateLabels bool
verifyDNSLength bool
trie *idnaTrie
// fromPuny calls validation rules when converting A-labels to U-labels.
fromPuny func(p *Profile, s string) error
// mapping implements a validation and mapping step as defined in RFC 5895
// or UTS 46, tailored to, for example, domain registration or lookup.
mapping func(p *Profile, s string) (string, error)
// bidirule, if specified, checks whether s conforms to the Bidi Rule
// defined in RFC 5893.
bidirule func(s string) bool
}
// A Profile defines the configuration of a IDNA mapper.
@ -97,8 +168,13 @@ func apply(o *options, opts []Option) {
}
// New creates a new Profile.
// With no options, the returned profile is the non-transitional profile as
// defined in UTS #46.
//
// With no options, the returned Profile is the most permissive and equals the
// Punycode Profile. Options can be passed to further restrict the Profile. The
// MapForLookup and ValidateForRegistration options set a collection of options,
// for lookup and registration purposes respectively, which can be tailored by
// adding more fine-grained options, where later options override earlier
// options.
func New(o ...Option) *Profile {
p := &Profile{}
apply(&p.options, o)
@ -132,33 +208,67 @@ func (p *Profile) String() string {
} else {
s = "NonTransitional"
}
if p.ignoreSTD3Rules {
s += ":NoSTD3Rules"
if p.useSTD3Rules {
s += ":UseSTD3Rules"
}
if p.validateLabels {
s += ":ValidateLabels"
}
if p.verifyDNSLength {
s += ":VerifyDNSLength"
}
return s
}
var (
// Resolve is the recommended profile for resolving domain names.
// The configuration of this profile may change over time.
Resolve = resolve
// Punycode is a Profile that does raw punycode processing with a minimum
// of validation.
Punycode *Profile = punycode
// Lookup is the recommended profile for looking up domain names, according
// to Section 5 of RFC 5891. The exact configuration of this profile may
// change over time.
Lookup *Profile = lookup
// Display is the recommended profile for displaying domain names.
// The configuration of this profile may change over time.
Display = display
Display *Profile = display
// NonTransitional defines a profile that implements the Transitional
// mapping as defined in UTS #46 with no additional constraints.
NonTransitional = nonTransitional
// Registration is the recommended profile for checking whether a given
// IDN is valid for registration, according to Section 4 of RFC 5891.
Registration *Profile = registration
resolve = &Profile{options{transitional: true}}
display = &Profile{}
nonTransitional = &Profile{}
punycode = &Profile{}
lookup = &Profile{options{
transitional: true,
useSTD3Rules: true,
validateLabels: true,
trie: trie,
fromPuny: validateFromPunycode,
mapping: validateAndMap,
bidirule: bidirule.ValidString,
}}
display = &Profile{options{
useSTD3Rules: true,
validateLabels: true,
trie: trie,
fromPuny: validateFromPunycode,
mapping: validateAndMap,
bidirule: bidirule.ValidString,
}}
registration = &Profile{options{
useSTD3Rules: true,
validateLabels: true,
verifyDNSLength: true,
trie: trie,
fromPuny: validateFromPunycode,
mapping: validateRegistration,
bidirule: bidirule.ValidString,
}}
// TODO: profiles
// V2008: strict IDNA2008
// Register: recommended for approving domain names: nontransitional, but
// bundle or block deviation characters.
// Register: recommended for approving domain names: don't do any mappings
// but rather reject on invalid input. Bundle or block deviation characters.
)
type labelError struct{ label, code_ string }
@ -178,12 +288,117 @@ func (e runeError) Error() string {
// process implements the algorithm described in section 4 of UTS #46,
// see http://www.unicode.org/reports/tr46.
func (p *Profile) process(s string, toASCII bool) (string, error) {
var err error
if p.mapping != nil {
s, err = p.mapping(p, s)
}
// Remove leading empty labels.
for ; len(s) > 0 && s[0] == '.'; s = s[1:] {
}
// It seems like we should only create this error on ToASCII, but the
// UTS 46 conformance tests suggests we should always check this.
if err == nil && p.verifyDNSLength && s == "" {
err = &labelError{s, "A4"}
}
labels := labelIter{orig: s}
for ; !labels.done(); labels.next() {
label := labels.label()
if label == "" {
// Empty labels are not okay. The label iterator skips the last
// label if it is empty.
if err == nil && p.verifyDNSLength {
err = &labelError{s, "A4"}
}
continue
}
if strings.HasPrefix(label, acePrefix) {
u, err2 := decode(label[len(acePrefix):])
if err2 != nil {
if err == nil {
err = err2
}
// Spec says keep the old label.
continue
}
labels.set(u)
if err == nil && p.validateLabels {
err = p.fromPuny(p, u)
}
if err == nil {
// This should be called on NonTransitional, according to the
// spec, but that currently does not have any effect. Use the
// original profile to preserve options.
err = p.validateLabel(u)
}
} else if err == nil {
err = p.validateLabel(label)
}
}
if toASCII {
for labels.reset(); !labels.done(); labels.next() {
label := labels.label()
if !ascii(label) {
a, err2 := encode(acePrefix, label)
if err == nil {
err = err2
}
label = a
labels.set(a)
}
n := len(label)
if p.verifyDNSLength && err == nil && (n == 0 || n > 63) {
err = &labelError{label, "A4"}
}
}
}
s = labels.result()
if toASCII && p.verifyDNSLength && err == nil {
// Compute the length of the domain name minus the root label and its dot.
n := len(s)
if n > 0 && s[n-1] == '.' {
n--
}
if len(s) < 1 || n > 253 {
err = &labelError{s, "A4"}
}
}
return s, err
}
func normalize(p *Profile, s string) (string, error) {
return norm.NFC.String(s), nil
}
func validateRegistration(p *Profile, s string) (string, error) {
if !norm.NFC.IsNormalString(s) {
return s, &labelError{s, "V1"}
}
var err error
for i := 0; i < len(s); {
v, sz := trie.lookupString(s[i:])
i += sz
// Copy bytes not copied so far.
switch p.simplify(info(v).category()) {
// TODO: handle the NV8 defined in the Unicode idna data set to allow
// for strict conformance to IDNA2008.
case valid, deviation:
case disallowed, mapped, unknown, ignored:
if err == nil {
r, _ := utf8.DecodeRuneInString(s[i:])
err = runeError(r)
}
}
}
return s, err
}
func validateAndMap(p *Profile, s string) (string, error) {
var (
b []byte
err error
k, i int
err error
b []byte
k int
)
for i < len(s) {
for i := 0; i < len(s); {
v, sz := trie.lookupString(s[i:])
start := i
i += sz
@ -220,71 +435,6 @@ func (p *Profile) process(s string, toASCII bool) (string, error) {
// TODO: the punycode converters require strings as input.
s = string(b)
}
// Remove leading empty labels
for ; len(s) > 0 && s[0] == '.'; s = s[1:] {
}
if s == "" {
return "", &labelError{s, "A4"}
}
labels := labelIter{orig: s}
for ; !labels.done(); labels.next() {
label := labels.label()
if label == "" {
// Empty labels are not okay. The label iterator skips the last
// label if it is empty.
if err == nil {
err = &labelError{s, "A4"}
}
continue
}
if strings.HasPrefix(label, acePrefix) {
u, err2 := decode(label[len(acePrefix):])
if err2 != nil {
if err == nil {
err = err2
}
// Spec says keep the old label.
continue
}
labels.set(u)
if err == nil {
err = p.validateFromPunycode(u)
}
if err == nil {
err = NonTransitional.validate(u)
}
} else if err == nil {
err = p.validate(label)
}
}
if toASCII {
for labels.reset(); !labels.done(); labels.next() {
label := labels.label()
if !ascii(label) {
a, err2 := encode(acePrefix, label)
if err == nil {
err = err2
}
label = a
labels.set(a)
}
n := len(label)
if p.verifyDNSLength && err == nil && (n == 0 || n > 63) {
err = &labelError{label, "A4"}
}
}
}
s = labels.result()
if toASCII && p.verifyDNSLength && err == nil {
// Compute the length of the domain name minus the root label and its dot.
n := len(s)
if n > 0 && s[n-1] == '.' {
n--
}
if len(s) < 1 || n > 253 {
err = &labelError{s, "A4"}
}
}
return s, err
}
@ -354,13 +504,13 @@ const acePrefix = "xn--"
func (p *Profile) simplify(cat category) category {
switch cat {
case disallowedSTD3Mapped:
if !p.ignoreSTD3Rules {
if p.useSTD3Rules {
cat = disallowed
} else {
cat = mapped
}
case disallowedSTD3Valid:
if !p.ignoreSTD3Rules {
if p.useSTD3Rules {
cat = disallowed
} else {
cat = valid
@ -376,7 +526,7 @@ func (p *Profile) simplify(cat category) category {
return cat
}
func (p *Profile) validateFromPunycode(s string) error {
func validateFromPunycode(p *Profile, s string) error {
if !norm.NFC.IsNormalString(s) {
return &labelError{s, "V1"}
}
@ -452,9 +602,22 @@ var joinStates = [][numJoinTypes]joinState{
},
}
// validate validates the criteria from Section 4.1. Item 1, 4, and 6 are
// validateLabel validates the criteria from Section 4.1. Item 1, 4, and 6 are
// already implicitly satisfied by the overall implementation.
func (p *Profile) validate(s string) error {
func (p *Profile) validateLabel(s string) error {
if s == "" {
if p.verifyDNSLength {
return &labelError{s, "A4"}
}
return nil
}
if p.bidirule != nil && !p.bidirule(s) {
return &labelError{s, "B"}
}
if !p.validateLabels {
return nil
}
trie := p.trie // p.validateLabels is only set if trie is set.
if len(s) > 4 && s[2] == '-' && s[3] == '-' {
return &labelError{s, "V2"}
}
@ -467,9 +630,6 @@ func (p *Profile) validate(s string) error {
if x.isModifier() {
return &labelError{s, "V5"}
}
if !bidirule.ValidString(s) {
return &labelError{s, "B"}
}
// Quickly return in the absence of zero-width (non) joiners.
if strings.Index(s, zwj) == -1 && strings.Index(s, zwnj) == -1 {
return nil

2
vendor/golang.org/x/net/idna/punycode.go generated vendored
View File

@ -1,4 +1,4 @@
// Copied from the golang.org/x/text repo; DO NOT EDIT
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style

4
vendor/golang.org/x/net/idna/tables.go generated vendored
View File

@ -1,6 +1,4 @@
// Copied from the golang.org/x/text repo; DO NOT EDIT
// This file was generated by go generate; DO NOT EDIT
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
package idna

5
vendor/golang.org/x/net/idna/trie.go generated vendored
View File

@ -1,4 +1,4 @@
// Copied from the golang.org/x/text repo; DO NOT EDIT
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
@ -44,7 +44,8 @@ var idnaSparse = sparseBlocks{
offset: idnaSparseOffset[:],
}
var trie = newIdnaTrie(0)
// Don't use newIdnaTrie to avoid unconditional linking in of the table.
var trie = &idnaTrie{}
// lookup determines the type of block n and looks up the value for b.
// For n < t.cutoff, the block is a simple lookup table. Otherwise, the block

4
vendor/golang.org/x/net/idna/trieval.go generated vendored
View File

@ -1,6 +1,4 @@
// Copied from the golang.org/x/text repo; DO NOT EDIT
// This file was generated by go generate; DO NOT EDIT
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
package idna

2
vendor/golang.org/x/net/internal/timeseries/timeseries.go generated vendored
View File

@ -371,7 +371,7 @@ func (ts *timeSeries) ComputeRange(start, finish time.Time, num int) []Observabl
}
}
// Failed to find a level that covers the desired range. So just
// Failed to find a level that covers the desired range. So just
// extract from the last level, even if it doesn't cover the entire
// desired range.
ts.extract(ts.levels[len(ts.levels)-1], start, finish, num, results)

59
vendor/golang.org/x/net/proxy/socks5.go generated vendored
View File

@ -72,24 +72,28 @@ func (s *socks5) Dial(network, addr string) (net.Conn, error) {
if err != nil {
return nil, err
}
closeConn := &conn
defer func() {
if closeConn != nil {
(*closeConn).Close()
}
}()
host, portStr, err := net.SplitHostPort(addr)
if err != nil {
if err := s.connect(conn, addr); err != nil {
conn.Close()
return nil, err
}
return conn, nil
}
// connect takes an existing connection to a socks5 proxy server,
// and commands the server to extend that connection to target,
// which must be a canonical address with a host and port.
func (s *socks5) connect(conn net.Conn, target string) error {
host, portStr, err := net.SplitHostPort(target)
if err != nil {
return err
}
port, err := strconv.Atoi(portStr)
if err != nil {
return nil, errors.New("proxy: failed to parse port number: " + portStr)
return errors.New("proxy: failed to parse port number: " + portStr)
}
if port < 1 || port > 0xffff {
return nil, errors.New("proxy: port number out of range: " + portStr)
return errors.New("proxy: port number out of range: " + portStr)
}
// the size here is just an estimate
@ -103,17 +107,17 @@ func (s *socks5) Dial(network, addr string) (net.Conn, error) {
}
if _, err := conn.Write(buf); err != nil {
return nil, errors.New("proxy: failed to write greeting to SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to write greeting to SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if _, err := io.ReadFull(conn, buf[:2]); err != nil {
return nil, errors.New("proxy: failed to read greeting from SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to read greeting from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if buf[0] != 5 {
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " has unexpected version " + strconv.Itoa(int(buf[0])))
return errors.New("proxy: SOCKS5 proxy at " + s.addr + " has unexpected version " + strconv.Itoa(int(buf[0])))
}
if buf[1] == 0xff {
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " requires authentication")
return errors.New("proxy: SOCKS5 proxy at " + s.addr + " requires authentication")
}
if buf[1] == socks5AuthPassword {
@ -125,15 +129,15 @@ func (s *socks5) Dial(network, addr string) (net.Conn, error) {
buf = append(buf, s.password...)
if _, err := conn.Write(buf); err != nil {
return nil, errors.New("proxy: failed to write authentication request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to write authentication request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if _, err := io.ReadFull(conn, buf[:2]); err != nil {
return nil, errors.New("proxy: failed to read authentication reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to read authentication reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if buf[1] != 0 {
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " rejected username/password")
return errors.New("proxy: SOCKS5 proxy at " + s.addr + " rejected username/password")
}
}
@ -150,7 +154,7 @@ func (s *socks5) Dial(network, addr string) (net.Conn, error) {
buf = append(buf, ip...)
} else {
if len(host) > 255 {
return nil, errors.New("proxy: destination hostname too long: " + host)
return errors.New("proxy: destination hostname too long: " + host)
}
buf = append(buf, socks5Domain)
buf = append(buf, byte(len(host)))
@ -159,11 +163,11 @@ func (s *socks5) Dial(network, addr string) (net.Conn, error) {
buf = append(buf, byte(port>>8), byte(port))
if _, err := conn.Write(buf); err != nil {
return nil, errors.New("proxy: failed to write connect request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to write connect request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if _, err := io.ReadFull(conn, buf[:4]); err != nil {
return nil, errors.New("proxy: failed to read connect reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to read connect reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
failure := "unknown error"
@ -172,7 +176,7 @@ func (s *socks5) Dial(network, addr string) (net.Conn, error) {
}
if len(failure) > 0 {
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " failed to connect: " + failure)
return errors.New("proxy: SOCKS5 proxy at " + s.addr + " failed to connect: " + failure)
}
bytesToDiscard := 0
@ -184,11 +188,11 @@ func (s *socks5) Dial(network, addr string) (net.Conn, error) {
case socks5Domain:
_, err := io.ReadFull(conn, buf[:1])
if err != nil {
return nil, errors.New("proxy: failed to read domain length from SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to read domain length from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
bytesToDiscard = int(buf[0])
default:
return nil, errors.New("proxy: got unknown address type " + strconv.Itoa(int(buf[3])) + " from SOCKS5 proxy at " + s.addr)
return errors.New("proxy: got unknown address type " + strconv.Itoa(int(buf[3])) + " from SOCKS5 proxy at " + s.addr)
}
if cap(buf) < bytesToDiscard {
@ -197,14 +201,13 @@ func (s *socks5) Dial(network, addr string) (net.Conn, error) {
buf = buf[:bytesToDiscard]
}
if _, err := io.ReadFull(conn, buf); err != nil {
return nil, errors.New("proxy: failed to read address from SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to read address from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
// Also need to discard the port number
if _, err := io.ReadFull(conn, buf[:2]); err != nil {
return nil, errors.New("proxy: failed to read port from SOCKS5 proxy at " + s.addr + ": " + err.Error())
return errors.New("proxy: failed to read port from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
closeConn = nil
return conn, nil
return nil
}

13
vendor/golang.org/x/net/trace/trace.go generated vendored
View File

@ -77,7 +77,6 @@ import (
"sync/atomic"
"time"
"golang.org/x/net/context"
"golang.org/x/net/internal/timeseries"
)
@ -271,18 +270,6 @@ type contextKeyT string
var contextKey = contextKeyT("golang.org/x/net/trace.Trace")
// NewContext returns a copy of the parent context
// and associates it with a Trace.
func NewContext(ctx context.Context, tr Trace) context.Context {
return context.WithValue(ctx, contextKey, tr)
}
// FromContext returns the Trace bound to the context, if any.
func FromContext(ctx context.Context) (tr Trace, ok bool) {
tr, ok = ctx.Value(contextKey).(Trace)
return
}
// Trace represents an active request.
type Trace interface {
// LazyLog adds x to the event log. It will be evaluated each time the

21
vendor/golang.org/x/net/trace/trace_go16.go generated vendored Normal file
View File

@ -0,0 +1,21 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.7
package trace
import "golang.org/x/net/context"
// NewContext returns a copy of the parent context
// and associates it with a Trace.
func NewContext(ctx context.Context, tr Trace) context.Context {
return context.WithValue(ctx, contextKey, tr)
}
// FromContext returns the Trace bound to the context, if any.
func FromContext(ctx context.Context) (tr Trace, ok bool) {
tr, ok = ctx.Value(contextKey).(Trace)
return
}

21
vendor/golang.org/x/net/trace/trace_go17.go generated vendored Normal file
View File

@ -0,0 +1,21 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.7
package trace
import "context"
// NewContext returns a copy of the parent context
// and associates it with a Trace.
func NewContext(ctx context.Context, tr Trace) context.Context {
return context.WithValue(ctx, contextKey, tr)
}
// FromContext returns the Trace bound to the context, if any.
func FromContext(ctx context.Context) (tr Trace, ok bool) {
tr, ok = ctx.Value(contextKey).(Trace)
return
}

202
vendor/google.golang.org/genproto/LICENSE generated vendored Normal file
View File

@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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"You" (or "Your") shall mean an individual or Legal Entity
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transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
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"Work" shall mean the work of authorship, whether in Source or
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"Contribution" shall mean any work of authorship, including
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designated in writing by the copyright owner as "Not a Contribution."
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2. Grant of Copyright License. Subject to the terms and conditions of
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as of the date such litigation is filed.
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(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
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(d) If the Work includes a "NOTICE" text file as part of its
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You may add Your own copyright statement to Your modifications and
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for use, reproduction, or distribution of Your modifications, or
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
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7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
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the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
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APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
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Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

28
vendor/google.golang.org/genproto/README.md generated vendored Normal file
View File

@ -0,0 +1,28 @@
Go generated proto packages
===========================
[![Build Status](https://travis-ci.org/google/go-genproto.svg?branch=master)](https://travis-ci.org/google/go-genproto)
[![GoDoc](https://godoc.org/google.golang.org/genproto?status.svg)](https://godoc.org/google.golang.org/genproto)
> **IMPORTANT** This repository is currently experimental. The structure
> of the contained packages is subject to change. Please see the original
> source repositories (listed below) to find out the status of the each
> protocol buffer's associated service.
This repository contains the generated Go packages for common protocol buffer
types, and the generated [gRPC][1] code necessary for interacting with Google's gRPC
APIs.
There are two sources for the proto files used in this repository:
1. [google/protobuf][2]: the code in the `protobuf` and `ptypes` subdirectories
is derived from this repo. The messages in `protobuf` are used to describe
protocol buffer messages themselves. The messages under `ptypes` define the
common well-known types.
2. [googleapis/googleapis][3]: the code in the `googleapis` is derived from this
repo. The packages here contain types specifically for interacting with Google
APIs.
[1]: http://grpc.io
[2]: https://github.com/google/protobuf/
[3]: https://github.com/googleapis/googleapis/

144
vendor/google.golang.org/genproto/googleapis/rpc/status/status.pb.go generated vendored Normal file
View File

@ -0,0 +1,144 @@
// Code generated by protoc-gen-go.
// source: google/rpc/status.proto
// DO NOT EDIT!
/*
Package status is a generated protocol buffer package.
It is generated from these files:
google/rpc/status.proto
It has these top-level messages:
Status
*/
package status
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
import google_protobuf "github.com/golang/protobuf/ptypes/any"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
// The `Status` type defines a logical error model that is suitable for different
// programming environments, including REST APIs and RPC APIs. It is used by
// [gRPC](https://github.com/grpc). The error model is designed to be:
//
// - Simple to use and understand for most users
// - Flexible enough to meet unexpected needs
//
// # Overview
//
// The `Status` message contains three pieces of data: error code, error message,
// and error details. The error code should be an enum value of
// [google.rpc.Code][google.rpc.Code], but it may accept additional error codes if needed. The
// error message should be a developer-facing English message that helps
// developers *understand* and *resolve* the error. If a localized user-facing
// error message is needed, put the localized message in the error details or
// localize it in the client. The optional error details may contain arbitrary
// information about the error. There is a predefined set of error detail types
// in the package `google.rpc` which can be used for common error conditions.
//
// # Language mapping
//
// The `Status` message is the logical representation of the error model, but it
// is not necessarily the actual wire format. When the `Status` message is
// exposed in different client libraries and different wire protocols, it can be
// mapped differently. For example, it will likely be mapped to some exceptions
// in Java, but more likely mapped to some error codes in C.
//
// # Other uses
//
// The error model and the `Status` message can be used in a variety of
// environments, either with or without APIs, to provide a
// consistent developer experience across different environments.
//
// Example uses of this error model include:
//
// - Partial errors. If a service needs to return partial errors to the client,
// it may embed the `Status` in the normal response to indicate the partial
// errors.
//
// - Workflow errors. A typical workflow has multiple steps. Each step may
// have a `Status` message for error reporting purpose.
//
// - Batch operations. If a client uses batch request and batch response, the
// `Status` message should be used directly inside batch response, one for
// each error sub-response.
//
// - Asynchronous operations. If an API call embeds asynchronous operation
// results in its response, the status of those operations should be
// represented directly using the `Status` message.
//
// - Logging. If some API errors are stored in logs, the message `Status` could
// be used directly after any stripping needed for security/privacy reasons.
type Status struct {
// The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code].
Code int32 `protobuf:"varint,1,opt,name=code" json:"code,omitempty"`
// A developer-facing error message, which should be in English. Any
// user-facing error message should be localized and sent in the
// [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client.
Message string `protobuf:"bytes,2,opt,name=message" json:"message,omitempty"`
// A list of messages that carry the error details. There will be a
// common set of message types for APIs to use.
Details []*google_protobuf.Any `protobuf:"bytes,3,rep,name=details" json:"details,omitempty"`
}
func (m *Status) Reset() { *m = Status{} }
func (m *Status) String() string { return proto.CompactTextString(m) }
func (*Status) ProtoMessage() {}
func (*Status) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
func (m *Status) GetCode() int32 {
if m != nil {
return m.Code
}
return 0
}
func (m *Status) GetMessage() string {
if m != nil {
return m.Message
}
return ""
}
func (m *Status) GetDetails() []*google_protobuf.Any {
if m != nil {
return m.Details
}
return nil
}
func init() {
proto.RegisterType((*Status)(nil), "google.rpc.Status")
}
func init() { proto.RegisterFile("google/rpc/status.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
// 209 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x12, 0x4f, 0xcf, 0xcf, 0x4f,
0xcf, 0x49, 0xd5, 0x2f, 0x2a, 0x48, 0xd6, 0x2f, 0x2e, 0x49, 0x2c, 0x29, 0x2d, 0xd6, 0x2b, 0x28,
0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x82, 0x48, 0xe8, 0x15, 0x15, 0x24, 0x4b, 0x49, 0x42, 0x15, 0x81,
0x65, 0x92, 0x4a, 0xd3, 0xf4, 0x13, 0xf3, 0x2a, 0x21, 0xca, 0x94, 0xd2, 0xb8, 0xd8, 0x82, 0xc1,
0xda, 0x84, 0x84, 0xb8, 0x58, 0x92, 0xf3, 0x53, 0x52, 0x25, 0x18, 0x15, 0x18, 0x35, 0x58, 0x83,
0xc0, 0x6c, 0x21, 0x09, 0x2e, 0xf6, 0xdc, 0xd4, 0xe2, 0xe2, 0xc4, 0xf4, 0x54, 0x09, 0x26, 0x05,
0x46, 0x0d, 0xce, 0x20, 0x18, 0x57, 0x48, 0x8f, 0x8b, 0x3d, 0x25, 0xb5, 0x24, 0x31, 0x33, 0xa7,
0x58, 0x82, 0x59, 0x81, 0x59, 0x83, 0xdb, 0x48, 0x44, 0x0f, 0x6a, 0x21, 0xcc, 0x12, 0x3d, 0xc7,
0xbc, 0xca, 0x20, 0x98, 0x22, 0xa7, 0x38, 0x2e, 0xbe, 0xe4, 0xfc, 0x5c, 0x3d, 0x84, 0xa3, 0x9c,
0xb8, 0x21, 0xf6, 0x06, 0x80, 0x94, 0x07, 0x30, 0x46, 0x99, 0x43, 0xa5, 0xd2, 0xf3, 0x73, 0x12,
0xf3, 0xd2, 0xf5, 0xf2, 0x8b, 0xd2, 0xf5, 0xd3, 0x53, 0xf3, 0xc0, 0x86, 0xe9, 0x43, 0xa4, 0x12,
0x0b, 0x32, 0x8b, 0x91, 0xfc, 0x69, 0x0d, 0xa1, 0x16, 0x31, 0x31, 0x07, 0x05, 0x38, 0x27, 0xb1,
0x81, 0x55, 0x1a, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff, 0xa4, 0x53, 0xf0, 0x7c, 0x10, 0x01, 0x00,
0x00,
}

13
vendor/google.golang.org/grpc/README.md generated vendored
View File

@ -1,4 +1,4 @@
#gRPC-Go
# gRPC-Go
[![Build Status](https://travis-ci.org/grpc/grpc-go.svg)](https://travis-ci.org/grpc/grpc-go) [![GoDoc](https://godoc.org/google.golang.org/grpc?status.svg)](https://godoc.org/google.golang.org/grpc)
@ -16,7 +16,7 @@ $ go get google.golang.org/grpc
Prerequisites
-------------
This requires Go 1.5 or later.
This requires Go 1.6 or later.
Constraints
-----------
@ -30,3 +30,12 @@ Status
------
GA
FAQ
---
#### Compiling error, undefined: grpc.SupportPackageIsVersion
Please update proto package, gRPC package and rebuild the proto files:
- `go get -u github.com/golang/protobuf/{proto,protoc-gen-go}`
- `go get -u google.golang.org/grpc`
- `protoc --go_out=plugins=grpc:. *.proto`

144
vendor/google.golang.org/grpc/call.go generated vendored
View File

@ -36,12 +36,14 @@ package grpc
import (
"bytes"
"io"
"math"
"time"
"golang.org/x/net/context"
"golang.org/x/net/trace"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
"google.golang.org/grpc/transport"
)
@ -49,7 +51,8 @@ import (
// On error, it returns the error and indicates whether the call should be retried.
//
// TODO(zhaoq): Check whether the received message sequence is valid.
func recvResponse(dopts dialOptions, t transport.ClientTransport, c *callInfo, stream *transport.Stream, reply interface{}) (err error) {
// TODO ctx is used for stats collection and processing. It is the context passed from the application.
func recvResponse(ctx context.Context, dopts dialOptions, t transport.ClientTransport, c *callInfo, stream *transport.Stream, reply interface{}) (err error) {
// Try to acquire header metadata from the server if there is any.
defer func() {
if err != nil {
@ -63,24 +66,34 @@ func recvResponse(dopts dialOptions, t transport.ClientTransport, c *callInfo, s
return
}
p := &parser{r: stream}
var inPayload *stats.InPayload
if dopts.copts.StatsHandler != nil {
inPayload = &stats.InPayload{
Client: true,
}
}
for {
if err = recv(p, dopts.codec, stream, dopts.dc, reply, math.MaxInt32); err != nil {
if err = recv(p, dopts.codec, stream, dopts.dc, reply, dopts.maxMsgSize, inPayload); err != nil {
if err == io.EOF {
break
}
return
}
}
if inPayload != nil && err == io.EOF && stream.Status().Code() == codes.OK {
// TODO in the current implementation, inTrailer may be handled before inPayload in some cases.
// Fix the order if necessary.
dopts.copts.StatsHandler.HandleRPC(ctx, inPayload)
}
c.trailerMD = stream.Trailer()
if peer, ok := peer.FromContext(stream.Context()); ok {
c.peer = peer
}
return nil
}
// sendRequest writes out various information of an RPC such as Context and Message.
func sendRequest(ctx context.Context, codec Codec, compressor Compressor, callHdr *transport.CallHdr, t transport.ClientTransport, args interface{}, opts *transport.Options) (_ *transport.Stream, err error) {
stream, err := t.NewStream(ctx, callHdr)
if err != nil {
return nil, err
}
func sendRequest(ctx context.Context, dopts dialOptions, compressor Compressor, callHdr *transport.CallHdr, stream *transport.Stream, t transport.ClientTransport, args interface{}, opts *transport.Options) (err error) {
defer func() {
if err != nil {
// If err is connection error, t will be closed, no need to close stream here.
@ -89,23 +102,35 @@ func sendRequest(ctx context.Context, codec Codec, compressor Compressor, callHd
}
}
}()
var cbuf *bytes.Buffer
var (
cbuf *bytes.Buffer
outPayload *stats.OutPayload
)
if compressor != nil {
cbuf = new(bytes.Buffer)
}
outBuf, err := encode(codec, args, compressor, cbuf)
if dopts.copts.StatsHandler != nil {
outPayload = &stats.OutPayload{
Client: true,
}
}
outBuf, err := encode(dopts.codec, args, compressor, cbuf, outPayload)
if err != nil {
return nil, Errorf(codes.Internal, "grpc: %v", err)
return Errorf(codes.Internal, "grpc: %v", err)
}
err = t.Write(stream, outBuf, opts)
if err == nil && outPayload != nil {
outPayload.SentTime = time.Now()
dopts.copts.StatsHandler.HandleRPC(ctx, outPayload)
}
// t.NewStream(...) could lead to an early rejection of the RPC (e.g., the service/method
// does not exist.) so that t.Write could get io.EOF from wait(...). Leave the following
// recvResponse to get the final status.
if err != nil && err != io.EOF {
return nil, err
return err
}
// Sent successfully.
return stream, nil
return nil
}
// Invoke sends the RPC request on the wire and returns after response is received.
@ -118,8 +143,16 @@ func Invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
return invoke(ctx, method, args, reply, cc, opts...)
}
func invoke(ctx context.Context, method string, args, reply interface{}, cc *ClientConn, opts ...CallOption) (err error) {
func invoke(ctx context.Context, method string, args, reply interface{}, cc *ClientConn, opts ...CallOption) (e error) {
c := defaultCallInfo
if mc, ok := cc.getMethodConfig(method); ok {
c.failFast = !mc.WaitForReady
if mc.Timeout > 0 {
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(ctx, mc.Timeout)
defer cancel()
}
}
for _, o := range opts {
if err := o.before(&c); err != nil {
return toRPCErr(err)
@ -140,12 +173,33 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
c.traceInfo.tr.LazyLog(&c.traceInfo.firstLine, false)
// TODO(dsymonds): Arrange for c.traceInfo.firstLine.remoteAddr to be set.
defer func() {
if err != nil {
c.traceInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
if e != nil {
c.traceInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{e}}, true)
c.traceInfo.tr.SetError()
}
}()
}
ctx = newContextWithRPCInfo(ctx)
sh := cc.dopts.copts.StatsHandler
if sh != nil {
ctx = sh.TagRPC(ctx, &stats.RPCTagInfo{FullMethodName: method})
begin := &stats.Begin{
Client: true,
BeginTime: time.Now(),
FailFast: c.failFast,
}
sh.HandleRPC(ctx, begin)
}
defer func() {
if sh != nil {
end := &stats.End{
Client: true,
EndTime: time.Now(),
Error: e,
}
sh.HandleRPC(ctx, end)
}
}()
topts := &transport.Options{
Last: true,
Delay: false,
@ -167,13 +221,14 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
if cc.dopts.cp != nil {
callHdr.SendCompress = cc.dopts.cp.Type()
}
gopts := BalancerGetOptions{
BlockingWait: !c.failFast,
}
t, put, err = cc.getTransport(ctx, gopts)
if err != nil {
// TODO(zhaoq): Probably revisit the error handling.
if _, ok := err.(*rpcError); ok {
if _, ok := status.FromError(err); ok {
return err
}
if err == errConnClosing || err == errConnUnavailable {
@ -188,33 +243,49 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
if c.traceInfo.tr != nil {
c.traceInfo.tr.LazyLog(&payload{sent: true, msg: args}, true)
}
stream, err = sendRequest(ctx, cc.dopts.codec, cc.dopts.cp, callHdr, t, args, topts)
stream, err = t.NewStream(ctx, callHdr)
if err != nil {
if put != nil {
put()
put = nil
}
// Retry a non-failfast RPC when
// i) there is a connection error; or
// ii) the server started to drain before this RPC was initiated.
if _, ok := err.(transport.ConnectionError); ok || err == transport.ErrStreamDrain {
if c.failFast {
return toRPCErr(err)
if _, ok := err.(transport.ConnectionError); ok {
// If error is connection error, transport was sending data on wire,
// and we are not sure if anything has been sent on wire.
// If error is not connection error, we are sure nothing has been sent.
updateRPCInfoInContext(ctx, rpcInfo{bytesSent: true, bytesReceived: false})
}
put()
}
if _, ok := err.(transport.ConnectionError); (ok || err == transport.ErrStreamDrain) && !c.failFast {
continue
}
return toRPCErr(err)
}
err = recvResponse(cc.dopts, t, &c, stream, reply)
err = sendRequest(ctx, cc.dopts, cc.dopts.cp, callHdr, stream, t, args, topts)
if err != nil {
if put != nil {
updateRPCInfoInContext(ctx, rpcInfo{
bytesSent: stream.BytesSent(),
bytesReceived: stream.BytesReceived(),
})
put()
put = nil
}
if _, ok := err.(transport.ConnectionError); ok || err == transport.ErrStreamDrain {
if c.failFast {
return toRPCErr(err)
}
// Retry a non-failfast RPC when
// i) there is a connection error; or
// ii) the server started to drain before this RPC was initiated.
if _, ok := err.(transport.ConnectionError); (ok || err == transport.ErrStreamDrain) && !c.failFast {
continue
}
return toRPCErr(err)
}
err = recvResponse(ctx, cc.dopts, t, &c, stream, reply)
if err != nil {
if put != nil {
updateRPCInfoInContext(ctx, rpcInfo{
bytesSent: stream.BytesSent(),
bytesReceived: stream.BytesReceived(),
})
put()
}
if _, ok := err.(transport.ConnectionError); (ok || err == transport.ErrStreamDrain) && !c.failFast {
continue
}
return toRPCErr(err)
@ -224,9 +295,12 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
}
t.CloseStream(stream, nil)
if put != nil {
updateRPCInfoInContext(ctx, rpcInfo{
bytesSent: stream.BytesSent(),
bytesReceived: stream.BytesReceived(),
})
put()
put = nil
}
return Errorf(stream.StatusCode(), "%s", stream.StatusDesc())
return stream.Status().Err()
}
}

260
vendor/google.golang.org/grpc/clientconn.go generated vendored
View File

@ -36,8 +36,8 @@ package grpc
import (
"errors"
"fmt"
"math"
"net"
"strings"
"sync"
"time"
@ -45,6 +45,8 @@ import (
"golang.org/x/net/trace"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/transport"
)
@ -54,6 +56,8 @@ var (
ErrClientConnClosing = errors.New("grpc: the client connection is closing")
// ErrClientConnTimeout indicates that the ClientConn cannot establish the
// underlying connections within the specified timeout.
// DEPRECATED: Please use context.DeadlineExceeded instead. This error will be
// removed in Q1 2017.
ErrClientConnTimeout = errors.New("grpc: timed out when dialing")
// errNoTransportSecurity indicates that there is no transport security
@ -75,7 +79,6 @@ var (
errConnClosing = errors.New("grpc: the connection is closing")
// errConnUnavailable indicates that the connection is unavailable.
errConnUnavailable = errors.New("grpc: the connection is unavailable")
errNoAddr = errors.New("grpc: there is no address available to dial")
// minimum time to give a connection to complete
minConnectTimeout = 20 * time.Second
)
@ -83,22 +86,33 @@ var (
// dialOptions configure a Dial call. dialOptions are set by the DialOption
// values passed to Dial.
type dialOptions struct {
unaryInt UnaryClientInterceptor
streamInt StreamClientInterceptor
codec Codec
cp Compressor
dc Decompressor
bs backoffStrategy
balancer Balancer
block bool
insecure bool
timeout time.Duration
copts transport.ConnectOptions
unaryInt UnaryClientInterceptor
streamInt StreamClientInterceptor
codec Codec
cp Compressor
dc Decompressor
bs backoffStrategy
balancer Balancer
block bool
insecure bool
timeout time.Duration
scChan <-chan ServiceConfig
copts transport.ConnectOptions
maxMsgSize int
}
const defaultClientMaxMsgSize = math.MaxInt32
// DialOption configures how we set up the connection.
type DialOption func(*dialOptions)
// WithMaxMsgSize returns a DialOption which sets the maximum message size the client can receive.
func WithMaxMsgSize(s int) DialOption {
return func(o *dialOptions) {
o.maxMsgSize = s
}
}
// WithCodec returns a DialOption which sets a codec for message marshaling and unmarshaling.
func WithCodec(c Codec) DialOption {
return func(o *dialOptions) {
@ -129,6 +143,13 @@ func WithBalancer(b Balancer) DialOption {
}
}
// WithServiceConfig returns a DialOption which has a channel to read the service configuration.
func WithServiceConfig(c <-chan ServiceConfig) DialOption {
return func(o *dialOptions) {
o.scChan = c
}
}
// WithBackoffMaxDelay configures the dialer to use the provided maximum delay
// when backing off after failed connection attempts.
func WithBackoffMaxDelay(md time.Duration) DialOption {
@ -199,6 +220,8 @@ func WithTimeout(d time.Duration) DialOption {
}
// WithDialer returns a DialOption that specifies a function to use for dialing network addresses.
// If FailOnNonTempDialError() is set to true, and an error is returned by f, gRPC checks the error's
// Temporary() method to decide if it should try to reconnect to the network address.
func WithDialer(f func(string, time.Duration) (net.Conn, error)) DialOption {
return func(o *dialOptions) {
o.copts.Dialer = func(ctx context.Context, addr string) (net.Conn, error) {
@ -210,6 +233,25 @@ func WithDialer(f func(string, time.Duration) (net.Conn, error)) DialOption {
}
}
// WithStatsHandler returns a DialOption that specifies the stats handler
// for all the RPCs and underlying network connections in this ClientConn.
func WithStatsHandler(h stats.Handler) DialOption {
return func(o *dialOptions) {
o.copts.StatsHandler = h
}
}
// FailOnNonTempDialError returns a DialOption that specified if gRPC fails on non-temporary dial errors.
// If f is true, and dialer returns a non-temporary error, gRPC will fail the connection to the network
// address and won't try to reconnect.
// The default value of FailOnNonTempDialError is false.
// This is an EXPERIMENTAL API.
func FailOnNonTempDialError(f bool) DialOption {
return func(o *dialOptions) {
o.copts.FailOnNonTempDialError = f
}
}
// WithUserAgent returns a DialOption that specifies a user agent string for all the RPCs.
func WithUserAgent(s string) DialOption {
return func(o *dialOptions) {
@ -217,6 +259,13 @@ func WithUserAgent(s string) DialOption {
}
}
// WithKeepaliveParams returns a DialOption that specifies keepalive paramaters for the client transport.
func WithKeepaliveParams(kp keepalive.ClientParameters) DialOption {
return func(o *dialOptions) {
o.copts.KeepaliveParams = kp
}
}
// WithUnaryInterceptor returns a DialOption that specifies the interceptor for unary RPCs.
func WithUnaryInterceptor(f UnaryClientInterceptor) DialOption {
return func(o *dialOptions) {
@ -231,6 +280,15 @@ func WithStreamInterceptor(f StreamClientInterceptor) DialOption {
}
}
// WithAuthority returns a DialOption that specifies the value to be used as
// the :authority pseudo-header. This value only works with WithInsecure and
// has no effect if TransportCredentials are present.
func WithAuthority(a string) DialOption {
return func(o *dialOptions) {
o.copts.Authority = a
}
}
// Dial creates a client connection to the given target.
func Dial(target string, opts ...DialOption) (*ClientConn, error) {
return DialContext(context.Background(), target, opts...)
@ -247,6 +305,32 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
conns: make(map[Address]*addrConn),
}
cc.ctx, cc.cancel = context.WithCancel(context.Background())
cc.dopts.maxMsgSize = defaultClientMaxMsgSize
for _, opt := range opts {
opt(&cc.dopts)
}
cc.mkp = cc.dopts.copts.KeepaliveParams
if cc.dopts.copts.Dialer == nil {
cc.dopts.copts.Dialer = newProxyDialer(
func(ctx context.Context, addr string) (net.Conn, error) {
return dialContext(ctx, "tcp", addr)
},
)
}
if cc.dopts.copts.UserAgent != "" {
cc.dopts.copts.UserAgent += " " + grpcUA
} else {
cc.dopts.copts.UserAgent = grpcUA
}
if cc.dopts.timeout > 0 {
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(ctx, cc.dopts.timeout)
defer cancel()
}
defer func() {
select {
case <-ctx.Done():
@ -259,10 +343,17 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
}
}()
for _, opt := range opts {
opt(&cc.dopts)
if cc.dopts.scChan != nil {
// Wait for the initial service config.
select {
case sc, ok := <-cc.dopts.scChan:
if ok {
cc.sc = sc
}
case <-ctx.Done():
return nil, ctx.Err()
}
}
// Set defaults.
if cc.dopts.codec == nil {
cc.dopts.codec = protoCodec{}
@ -273,21 +364,18 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
creds := cc.dopts.copts.TransportCredentials
if creds != nil && creds.Info().ServerName != "" {
cc.authority = creds.Info().ServerName
} else if cc.dopts.insecure && cc.dopts.copts.Authority != "" {
cc.authority = cc.dopts.copts.Authority
} else {
colonPos := strings.LastIndex(target, ":")
if colonPos == -1 {
colonPos = len(target)
}
cc.authority = target[:colonPos]
cc.authority = target
}
var ok bool
waitC := make(chan error, 1)
go func() {
var addrs []Address
if cc.dopts.balancer == nil {
// Connect to target directly if balancer is nil.
addrs = append(addrs, Address{Addr: target})
} else {
defer close(waitC)
if cc.dopts.balancer == nil && cc.sc.LB != nil {
cc.dopts.balancer = cc.sc.LB
}
if cc.dopts.balancer != nil {
var credsClone credentials.TransportCredentials
if creds != nil {
credsClone = creds.Clone()
@ -300,29 +388,23 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
return
}
ch := cc.dopts.balancer.Notify()
if ch == nil {
// There is no name resolver installed.
addrs = append(addrs, Address{Addr: target})
} else {
addrs, ok = <-ch
if !ok || len(addrs) == 0 {
waitC <- errNoAddr
return
if ch != nil {
if cc.dopts.block {
doneChan := make(chan struct{})
go cc.lbWatcher(doneChan)
<-doneChan
} else {
go cc.lbWatcher(nil)
}
}
}
for _, a := range addrs {
if err := cc.resetAddrConn(a, false, nil); err != nil {
waitC <- err
return
}
}
close(waitC)
// No balancer, or no resolver within the balancer. Connect directly.
if err := cc.resetAddrConn(Address{Addr: target}, cc.dopts.block, nil); err != nil {
waitC <- err
return
}
}()
var timeoutCh <-chan time.Time
if cc.dopts.timeout > 0 {
timeoutCh = time.After(cc.dopts.timeout)
}
select {
case <-ctx.Done():
return nil, ctx.Err()
@ -330,14 +412,12 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
if err != nil {
return nil, err
}
case <-timeoutCh:
return nil, ErrClientConnTimeout
}
// If balancer is nil or balancer.Notify() is nil, ok will be false here.
// The lbWatcher goroutine will not be created.
if ok {
go cc.lbWatcher()
if cc.dopts.scChan != nil {
go cc.scWatcher()
}
return cc, nil
}
@ -384,10 +464,16 @@ type ClientConn struct {
dopts dialOptions
mu sync.RWMutex
sc ServiceConfig
conns map[Address]*addrConn
// Keepalive parameter can be udated if a GoAway is received.
mkp keepalive.ClientParameters
}
func (cc *ClientConn) lbWatcher() {
// lbWatcher watches the Notify channel of the balancer in cc and manages
// connections accordingly. If doneChan is not nil, it is closed after the
// first successfull connection is made.
func (cc *ClientConn) lbWatcher(doneChan chan struct{}) {
for addrs := range cc.dopts.balancer.Notify() {
var (
add []Address // Addresses need to setup connections.
@ -414,7 +500,15 @@ func (cc *ClientConn) lbWatcher() {
}
cc.mu.Unlock()
for _, a := range add {
cc.resetAddrConn(a, true, nil)
if doneChan != nil {
err := cc.resetAddrConn(a, true, nil)
if err == nil {
close(doneChan)
doneChan = nil
}
} else {
cc.resetAddrConn(a, false, nil)
}
}
for _, c := range del {
c.tearDown(errConnDrain)
@ -422,15 +516,36 @@ func (cc *ClientConn) lbWatcher() {
}
}
func (cc *ClientConn) scWatcher() {
for {
select {
case sc, ok := <-cc.dopts.scChan:
if !ok {
return
}
cc.mu.Lock()
// TODO: load balance policy runtime change is ignored.
// We may revist this decision in the future.
cc.sc = sc
cc.mu.Unlock()
case <-cc.ctx.Done():
return
}
}
}
// resetAddrConn creates an addrConn for addr and adds it to cc.conns.
// If there is an old addrConn for addr, it will be torn down, using tearDownErr as the reason.
// If tearDownErr is nil, errConnDrain will be used instead.
func (cc *ClientConn) resetAddrConn(addr Address, skipWait bool, tearDownErr error) error {
func (cc *ClientConn) resetAddrConn(addr Address, block bool, tearDownErr error) error {
ac := &addrConn{
cc: cc,
addr: addr,
dopts: cc.dopts,
}
cc.mu.RLock()
ac.dopts.copts.KeepaliveParams = cc.mkp
cc.mu.RUnlock()
ac.ctx, ac.cancel = context.WithCancel(cc.ctx)
ac.stateCV = sync.NewCond(&ac.mu)
if EnableTracing {
@ -475,8 +590,7 @@ func (cc *ClientConn) resetAddrConn(addr Address, skipWait bool, tearDownErr err
stale.tearDown(tearDownErr)
}
}
// skipWait may overwrite the decision in ac.dopts.block.
if ac.dopts.block && !skipWait {
if block {
if err := ac.resetTransport(false); err != nil {
if err != errConnClosing {
// Tear down ac and delete it from cc.conns.
@ -509,6 +623,14 @@ func (cc *ClientConn) resetAddrConn(addr Address, skipWait bool, tearDownErr err
return nil
}
// TODO: Avoid the locking here.
func (cc *ClientConn) getMethodConfig(method string) (m MethodConfig, ok bool) {
cc.mu.RLock()
defer cc.mu.RUnlock()
m, ok = cc.sc.Methods[method]
return
}
func (cc *ClientConn) getTransport(ctx context.Context, opts BalancerGetOptions) (transport.ClientTransport, func(), error) {
var (
ac *addrConn
@ -547,6 +669,7 @@ func (cc *ClientConn) getTransport(ctx context.Context, opts BalancerGetOptions)
}
if !ok {
if put != nil {
updateRPCInfoInContext(ctx, rpcInfo{bytesSent: false, bytesReceived: false})
put()
}
return nil, nil, errConnClosing
@ -554,6 +677,7 @@ func (cc *ClientConn) getTransport(ctx context.Context, opts BalancerGetOptions)
t, err := ac.wait(ctx, cc.dopts.balancer != nil, !opts.BlockingWait)
if err != nil {
if put != nil {
updateRPCInfoInContext(ctx, rpcInfo{bytesSent: false, bytesReceived: false})
put()
}
return nil, nil, err
@ -605,6 +729,20 @@ type addrConn struct {
tearDownErr error
}
// adjustParams updates parameters used to create transports upon
// receiving a GoAway.
func (ac *addrConn) adjustParams(r transport.GoAwayReason) {
switch r {
case transport.TooManyPings:
v := 2 * ac.dopts.copts.KeepaliveParams.Time
ac.cc.mu.Lock()
if v > ac.cc.mkp.Time {
ac.cc.mkp.Time = v
}
ac.cc.mu.Unlock()
}
}
// printf records an event in ac's event log, unless ac has been closed.
// REQUIRES ac.mu is held.
func (ac *addrConn) printf(format string, a ...interface{}) {
@ -689,6 +827,8 @@ func (ac *addrConn) resetTransport(closeTransport bool) error {
Metadata: ac.addr.Metadata,
}
newTransport, err := transport.NewClientTransport(ctx, sinfo, ac.dopts.copts)
// Don't call cancel in success path due to a race in Go 1.6:
// https://github.com/golang/go/issues/15078.
if err != nil {
cancel()
@ -759,6 +899,7 @@ func (ac *addrConn) transportMonitor() {
}
return
case <-t.GoAway():
ac.adjustParams(t.GetGoAwayReason())
// If GoAway happens without any network I/O error, ac is closed without shutting down the
// underlying transport (the transport will be closed when all the pending RPCs finished or
// failed.).
@ -767,9 +908,9 @@ func (ac *addrConn) transportMonitor() {
// In both cases, a new ac is created.
select {
case <-t.Error():
ac.cc.resetAddrConn(ac.addr, true, errNetworkIO)
ac.cc.resetAddrConn(ac.addr, false, errNetworkIO)
default:
ac.cc.resetAddrConn(ac.addr, true, errConnDrain)
ac.cc.resetAddrConn(ac.addr, false, errConnDrain)
}
return
case <-t.Error():
@ -778,7 +919,8 @@ func (ac *addrConn) transportMonitor() {
t.Close()
return
case <-t.GoAway():
ac.cc.resetAddrConn(ac.addr, true, errNetworkIO)
ac.adjustParams(t.GetGoAwayReason())
ac.cc.resetAddrConn(ac.addr, false, errNetworkIO)
return
default:
}

118
vendor/google.golang.org/grpc/codec.go generated vendored Normal file
View File

@ -0,0 +1,118 @@
/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package grpc
import (
"math"
"sync"
"github.com/golang/protobuf/proto"
)
// Codec defines the interface gRPC uses to encode and decode messages.
// Note that implementations of this interface must be thread safe;
// a Codec's methods can be called from concurrent goroutines.
type Codec interface {
// Marshal returns the wire format of v.
Marshal(v interface{}) ([]byte, error)
// Unmarshal parses the wire format into v.
Unmarshal(data []byte, v interface{}) error
// String returns the name of the Codec implementation. The returned
// string will be used as part of content type in transmission.
String() string
}
// protoCodec is a Codec implementation with protobuf. It is the default codec for gRPC.
type protoCodec struct {
}
type cachedProtoBuffer struct {
lastMarshaledSize uint32
proto.Buffer
}
func capToMaxInt32(val int) uint32 {
if val > math.MaxInt32 {
return uint32(math.MaxInt32)
}
return uint32(val)
}
func (p protoCodec) marshal(v interface{}, cb *cachedProtoBuffer) ([]byte, error) {
protoMsg := v.(proto.Message)
newSlice := make([]byte, 0, cb.lastMarshaledSize)
cb.SetBuf(newSlice)
cb.Reset()
if err := cb.Marshal(protoMsg); err != nil {
return nil, err
}
out := cb.Bytes()
cb.lastMarshaledSize = capToMaxInt32(len(out))
return out, nil
}
func (p protoCodec) Marshal(v interface{}) ([]byte, error) {
cb := protoBufferPool.Get().(*cachedProtoBuffer)
out, err := p.marshal(v, cb)
// put back buffer and lose the ref to the slice
cb.SetBuf(nil)
protoBufferPool.Put(cb)
return out, err
}
func (p protoCodec) Unmarshal(data []byte, v interface{}) error {
cb := protoBufferPool.Get().(*cachedProtoBuffer)
cb.SetBuf(data)
err := cb.Unmarshal(v.(proto.Message))
cb.SetBuf(nil)
protoBufferPool.Put(cb)
return err
}
func (protoCodec) String() string {
return "proto"
}
var (
protoBufferPool = &sync.Pool{
New: func() interface{} {
return &cachedProtoBuffer{
Buffer: proto.Buffer{},
lastMarshaledSize: 16,
}
},
}
)

8
vendor/google.golang.org/grpc/credentials/credentials.go generated vendored
View File

@ -102,6 +102,10 @@ type TransportCredentials interface {
// authentication protocol on rawConn for clients. It returns the authenticated
// connection and the corresponding auth information about the connection.
// Implementations must use the provided context to implement timely cancellation.
// gRPC will try to reconnect if the error returned is a temporary error
// (io.EOF, context.DeadlineExceeded or err.Temporary() == true).
// If the returned error is a wrapper error, implementations should make sure that
// the error implements Temporary() to have the correct retry behaviors.
ClientHandshake(context.Context, string, net.Conn) (net.Conn, AuthInfo, error)
// ServerHandshake does the authentication handshake for servers. It returns
// the authenticated connection and the corresponding auth information about
@ -165,9 +169,7 @@ func (c *tlsCreds) ClientHandshake(ctx context.Context, addr string, rawConn net
case <-ctx.Done():
return nil, nil, ctx.Err()
}
// TODO(zhaoq): Omit the auth info for client now. It is more for
// information than anything else.
return conn, nil, nil
return conn, TLSInfo{conn.ConnectionState()}, nil
}
func (c *tlsCreds) ServerHandshake(rawConn net.Conn) (net.Conn, AuthInfo, error) {

3
vendor/google.golang.org/grpc/credentials/credentials_util_go17.go generated vendored
View File

@ -1,4 +1,5 @@
// +build go1.7
// +build !go1.8
/*
*
@ -44,8 +45,6 @@ import (
// contains a mutex and must not be copied.
//
// If cfg is nil, a new zero tls.Config is returned.
//
// TODO replace this function with official clone function.
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
if cfg == nil {
return &tls.Config{}

53
vendor/google.golang.org/grpc/credentials/credentials_util_go18.go generated vendored Normal file
View File

@ -0,0 +1,53 @@
// +build go1.8
/*
*
* Copyright 2017, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package credentials
import (
"crypto/tls"
)
// cloneTLSConfig returns a shallow clone of the exported
// fields of cfg, ignoring the unexported sync.Once, which
// contains a mutex and must not be copied.
//
// If cfg is nil, a new zero tls.Config is returned.
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
if cfg == nil {
return &tls.Config{}
}
return cfg.Clone()
}

2
vendor/google.golang.org/grpc/credentials/credentials_util_pre_go17.go generated vendored
View File

@ -44,8 +44,6 @@ import (
// contains a mutex and must not be copied.
//
// If cfg is nil, a new zero tls.Config is returned.
//
// TODO replace this function with official clone function.
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
if cfg == nil {
return &tls.Config{}

56
vendor/google.golang.org/grpc/go16.go generated vendored Normal file
View File

@ -0,0 +1,56 @@
// +build go1.6,!go1.7
/*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package grpc
import (
"fmt"
"net"
"net/http"
"golang.org/x/net/context"
)
// dialContext connects to the address on the named network.
func dialContext(ctx context.Context, network, address string) (net.Conn, error) {
return (&net.Dialer{Cancel: ctx.Done()}).Dial(network, address)
}
func sendHTTPRequest(ctx context.Context, req *http.Request, conn net.Conn) error {
req.Cancel = ctx.Done()
if err := req.Write(conn); err != nil {
return fmt.Errorf("failed to write the HTTP request: %v", err)
}
return nil
}

20
vendor/google.golang.org/grpc/transport/pre_go16.go → vendor/google.golang.org/grpc/go17.go generated vendored
View File

@ -1,4 +1,4 @@
// +build !go1.6
// +build go1.7
/*
* Copyright 2016, Google Inc.
@ -32,20 +32,24 @@
*
*/
package transport
package grpc
import (
"net"
"time"
"net/http"
"golang.org/x/net/context"
)
// dialContext connects to the address on the named network.
func dialContext(ctx context.Context, network, address string) (net.Conn, error) {
var dialer net.Dialer
if deadline, ok := ctx.Deadline(); ok {
dialer.Timeout = deadline.Sub(time.Now())
}
return dialer.Dial(network, address)
return (&net.Dialer{}).DialContext(ctx, network, address)
}
func sendHTTPRequest(ctx context.Context, req *http.Request, conn net.Conn) error {
req = req.WithContext(ctx)
if err := req.Write(conn); err != nil {
return err
}
return nil
}

749
vendor/google.golang.org/grpc/grpclb.go generated vendored Normal file
View File

@ -0,0 +1,749 @@
/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package grpc
import (
"errors"
"fmt"
"math/rand"
"net"
"sync"
"time"
"golang.org/x/net/context"
"google.golang.org/grpc/codes"
lbpb "google.golang.org/grpc/grpclb/grpc_lb_v1"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/naming"
)
// Client API for LoadBalancer service.
// Mostly copied from generated pb.go file.
// To avoid circular dependency.
type loadBalancerClient struct {
cc *ClientConn
}
func (c *loadBalancerClient) BalanceLoad(ctx context.Context, opts ...CallOption) (*balanceLoadClientStream, error) {
desc := &StreamDesc{
StreamName: "BalanceLoad",
ServerStreams: true,
ClientStreams: true,
}
stream, err := NewClientStream(ctx, desc, c.cc, "/grpc.lb.v1.LoadBalancer/BalanceLoad", opts...)
if err != nil {
return nil, err
}
x := &balanceLoadClientStream{stream}
return x, nil
}
type balanceLoadClientStream struct {
ClientStream
}
func (x *balanceLoadClientStream) Send(m *lbpb.LoadBalanceRequest) error {
return x.ClientStream.SendMsg(m)
}
func (x *balanceLoadClientStream) Recv() (*lbpb.LoadBalanceResponse, error) {
m := new(lbpb.LoadBalanceResponse)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// AddressType indicates the address type returned by name resolution.
type AddressType uint8
const (
// Backend indicates the server is a backend server.
Backend AddressType = iota
// GRPCLB indicates the server is a grpclb load balancer.
GRPCLB
)
// AddrMetadataGRPCLB contains the information the name resolution for grpclb should provide. The
// name resolver used by grpclb balancer is required to provide this type of metadata in
// its address updates.
type AddrMetadataGRPCLB struct {
// AddrType is the type of server (grpc load balancer or backend).
AddrType AddressType
// ServerName is the name of the grpc load balancer. Used for authentication.
ServerName string
}
// NewGRPCLBBalancer creates a grpclb load balancer.
func NewGRPCLBBalancer(r naming.Resolver) Balancer {
return &balancer{
r: r,
}
}
type remoteBalancerInfo struct {
addr string
// the server name used for authentication with the remote LB server.
name string
}
// grpclbAddrInfo consists of the information of a backend server.
type grpclbAddrInfo struct {
addr Address
connected bool
// dropForRateLimiting indicates whether this particular request should be
// dropped by the client for rate limiting.
dropForRateLimiting bool
// dropForLoadBalancing indicates whether this particular request should be
// dropped by the client for load balancing.
dropForLoadBalancing bool
}
type balancer struct {
r naming.Resolver
target string
mu sync.Mutex
seq int // a sequence number to make sure addrCh does not get stale addresses.
w naming.Watcher
addrCh chan []Address
rbs []remoteBalancerInfo
addrs []*grpclbAddrInfo
next int
waitCh chan struct{}
done bool
expTimer *time.Timer
rand *rand.Rand
clientStats lbpb.ClientStats
}
func (b *balancer) watchAddrUpdates(w naming.Watcher, ch chan []remoteBalancerInfo) error {
updates, err := w.Next()
if err != nil {
return err
}
b.mu.Lock()
defer b.mu.Unlock()
if b.done {
return ErrClientConnClosing
}
for _, update := range updates {
switch update.Op {
case naming.Add:
var exist bool
for _, v := range b.rbs {
// TODO: Is the same addr with different server name a different balancer?
if update.Addr == v.addr {
exist = true
break
}
}
if exist {
continue
}
md, ok := update.Metadata.(*AddrMetadataGRPCLB)
if !ok {
// TODO: Revisit the handling here and may introduce some fallback mechanism.
grpclog.Printf("The name resolution contains unexpected metadata %v", update.Metadata)
continue
}
switch md.AddrType {
case Backend:
// TODO: Revisit the handling here and may introduce some fallback mechanism.
grpclog.Printf("The name resolution does not give grpclb addresses")
continue
case GRPCLB:
b.rbs = append(b.rbs, remoteBalancerInfo{
addr: update.Addr,
name: md.ServerName,
})
default:
grpclog.Printf("Received unknow address type %d", md.AddrType)
continue
}
case naming.Delete:
for i, v := range b.rbs {
if update.Addr == v.addr {
copy(b.rbs[i:], b.rbs[i+1:])
b.rbs = b.rbs[:len(b.rbs)-1]
break
}
}
default:
grpclog.Println("Unknown update.Op ", update.Op)
}
}
// TODO: Fall back to the basic round-robin load balancing if the resulting address is
// not a load balancer.
select {
case <-ch:
default:
}
ch <- b.rbs
return nil
}
func (b *balancer) serverListExpire(seq int) {
b.mu.Lock()
defer b.mu.Unlock()
// TODO: gRPC interanls do not clear the connections when the server list is stale.
// This means RPCs will keep using the existing server list until b receives new
// server list even though the list is expired. Revisit this behavior later.
if b.done || seq < b.seq {
return
}
b.next = 0
b.addrs = nil
// Ask grpc internals to close all the corresponding connections.
b.addrCh <- nil
}
func convertDuration(d *lbpb.Duration) time.Duration {
if d == nil {
return 0
}
return time.Duration(d.Seconds)*time.Second + time.Duration(d.Nanos)*time.Nanosecond
}
func (b *balancer) processServerList(l *lbpb.ServerList, seq int) {
if l == nil {
return
}
servers := l.GetServers()
expiration := convertDuration(l.GetExpirationInterval())
var (
sl []*grpclbAddrInfo
addrs []Address
)
for _, s := range servers {
md := metadata.Pairs("lb-token", s.LoadBalanceToken)
addr := Address{
Addr: fmt.Sprintf("%s:%d", net.IP(s.IpAddress), s.Port),
Metadata: &md,
}
sl = append(sl, &grpclbAddrInfo{
addr: addr,
dropForRateLimiting: s.DropForRateLimiting,
dropForLoadBalancing: s.DropForLoadBalancing,
})
addrs = append(addrs, addr)
}
b.mu.Lock()
defer b.mu.Unlock()
if b.done || seq < b.seq {
return
}
if len(sl) > 0 {
// reset b.next to 0 when replacing the server list.
b.next = 0
b.addrs = sl
b.addrCh <- addrs
if b.expTimer != nil {
b.expTimer.Stop()
b.expTimer = nil
}
if expiration > 0 {
b.expTimer = time.AfterFunc(expiration, func() {
b.serverListExpire(seq)
})
}
}
return
}
func (b *balancer) sendLoadReport(s *balanceLoadClientStream, interval time.Duration, done <-chan struct{}) {
ticker := time.NewTicker(interval)
defer ticker.Stop()
for {
select {
case <-ticker.C:
case <-done:
return
}
b.mu.Lock()
stats := b.clientStats
b.clientStats = lbpb.ClientStats{} // Clear the stats.
b.mu.Unlock()
t := time.Now()
stats.Timestamp = &lbpb.Timestamp{
Seconds: t.Unix(),
Nanos: int32(t.Nanosecond()),
}
if err := s.Send(&lbpb.LoadBalanceRequest{
LoadBalanceRequestType: &lbpb.LoadBalanceRequest_ClientStats{
ClientStats: &stats,
},
}); err != nil {
return
}
}
}
func (b *balancer) callRemoteBalancer(lbc *loadBalancerClient, seq int) (retry bool) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
stream, err := lbc.BalanceLoad(ctx)
if err != nil {
grpclog.Printf("Failed to perform RPC to the remote balancer %v", err)
return
}
b.mu.Lock()
if b.done {
b.mu.Unlock()
return
}
b.mu.Unlock()
initReq := &lbpb.LoadBalanceRequest{
LoadBalanceRequestType: &lbpb.LoadBalanceRequest_InitialRequest{
InitialRequest: &lbpb.InitialLoadBalanceRequest{
Name: b.target,
},
},
}
if err := stream.Send(initReq); err != nil {
// TODO: backoff on retry?
return true
}
reply, err := stream.Recv()
if err != nil {
// TODO: backoff on retry?
return true
}
initResp := reply.GetInitialResponse()
if initResp == nil {
grpclog.Println("Failed to receive the initial response from the remote balancer.")
return
}
// TODO: Support delegation.
if initResp.LoadBalancerDelegate != "" {
// delegation
grpclog.Println("TODO: Delegation is not supported yet.")
return
}
streamDone := make(chan struct{})
defer close(streamDone)
b.mu.Lock()
b.clientStats = lbpb.ClientStats{} // Clear client stats.
b.mu.Unlock()
if d := convertDuration(initResp.ClientStatsReportInterval); d > 0 {
go b.sendLoadReport(stream, d, streamDone)
}
// Retrieve the server list.
for {
reply, err := stream.Recv()
if err != nil {
break
}
b.mu.Lock()
if b.done || seq < b.seq {
b.mu.Unlock()
return
}
b.seq++ // tick when receiving a new list of servers.
seq = b.seq
b.mu.Unlock()
if serverList := reply.GetServerList(); serverList != nil {
b.processServerList(serverList, seq)
}
}
return true
}
func (b *balancer) Start(target string, config BalancerConfig) error {
b.rand = rand.New(rand.NewSource(time.Now().Unix()))
// TODO: Fall back to the basic direct connection if there is no name resolver.
if b.r == nil {
return errors.New("there is no name resolver installed")
}
b.target = target
b.mu.Lock()
if b.done {
b.mu.Unlock()
return ErrClientConnClosing
}
b.addrCh = make(chan []Address)
w, err := b.r.Resolve(target)
if err != nil {
b.mu.Unlock()
return err
}
b.w = w
b.mu.Unlock()
balancerAddrsCh := make(chan []remoteBalancerInfo, 1)
// Spawn a goroutine to monitor the name resolution of remote load balancer.
go func() {
for {
if err := b.watchAddrUpdates(w, balancerAddrsCh); err != nil {
grpclog.Printf("grpc: the naming watcher stops working due to %v.\n", err)
close(balancerAddrsCh)
return
}
}
}()
// Spawn a goroutine to talk to the remote load balancer.
go func() {
var (
cc *ClientConn
// ccError is closed when there is an error in the current cc.
// A new rb should be picked from rbs and connected.
ccError chan struct{}
rb *remoteBalancerInfo
rbs []remoteBalancerInfo
rbIdx int
)
defer func() {
if ccError != nil {
select {
case <-ccError:
default:
close(ccError)
}
}
if cc != nil {
cc.Close()
}
}()
for {
var ok bool
select {
case rbs, ok = <-balancerAddrsCh:
if !ok {
return
}
foundIdx := -1
if rb != nil {
for i, trb := range rbs {
if trb == *rb {
foundIdx = i
break
}
}
}
if foundIdx >= 0 {
if foundIdx >= 1 {
// Move the address in use to the beginning of the list.
b.rbs[0], b.rbs[foundIdx] = b.rbs[foundIdx], b.rbs[0]
rbIdx = 0
}
continue // If found, don't dial new cc.
} else if len(rbs) > 0 {
// Pick a random one from the list, instead of always using the first one.
if l := len(rbs); l > 1 && rb != nil {
tmpIdx := b.rand.Intn(l - 1)
b.rbs[0], b.rbs[tmpIdx] = b.rbs[tmpIdx], b.rbs[0]
}
rbIdx = 0
rb = &rbs[0]
} else {
// foundIdx < 0 && len(rbs) <= 0.
rb = nil
}
case <-ccError:
ccError = nil
if rbIdx < len(rbs)-1 {
rbIdx++
rb = &rbs[rbIdx]
} else {
rb = nil
}
}
if rb == nil {
continue
}
if cc != nil {
cc.Close()
}
// Talk to the remote load balancer to get the server list.
var err error
creds := config.DialCreds
ccError = make(chan struct{})
if creds == nil {
cc, err = Dial(rb.addr, WithInsecure())
} else {
if rb.name != "" {
if err := creds.OverrideServerName(rb.name); err != nil {
grpclog.Printf("Failed to override the server name in the credentials: %v", err)
continue
}
}
cc, err = Dial(rb.addr, WithTransportCredentials(creds))
}
if err != nil {
grpclog.Printf("Failed to setup a connection to the remote balancer %v: %v", rb.addr, err)
close(ccError)
continue
}
b.mu.Lock()
b.seq++ // tick when getting a new balancer address
seq := b.seq
b.next = 0
b.mu.Unlock()
go func(cc *ClientConn, ccError chan struct{}) {
lbc := &loadBalancerClient{cc}
b.callRemoteBalancer(lbc, seq)
cc.Close()
select {
case <-ccError:
default:
close(ccError)
}
}(cc, ccError)
}
}()
return nil
}
func (b *balancer) down(addr Address, err error) {
b.mu.Lock()
defer b.mu.Unlock()
for _, a := range b.addrs {
if addr == a.addr {
a.connected = false
break
}
}
}
func (b *balancer) Up(addr Address) func(error) {
b.mu.Lock()
defer b.mu.Unlock()
if b.done {
return nil
}
var cnt int
for _, a := range b.addrs {
if a.addr == addr {
if a.connected {
return nil
}
a.connected = true
}
if a.connected && !a.dropForRateLimiting && !a.dropForLoadBalancing {
cnt++
}
}
// addr is the only one which is connected. Notify the Get() callers who are blocking.
if cnt == 1 && b.waitCh != nil {
close(b.waitCh)
b.waitCh = nil
}
return func(err error) {
b.down(addr, err)
}
}
func (b *balancer) Get(ctx context.Context, opts BalancerGetOptions) (addr Address, put func(), err error) {
var ch chan struct{}
b.mu.Lock()
if b.done {
b.mu.Unlock()
err = ErrClientConnClosing
return
}
seq := b.seq
defer func() {
if err != nil {
return
}
put = func() {
s, ok := rpcInfoFromContext(ctx)
if !ok {
return
}
b.mu.Lock()
defer b.mu.Unlock()
if b.done || seq < b.seq {
return
}
b.clientStats.NumCallsFinished++
if !s.bytesSent {
b.clientStats.NumCallsFinishedWithClientFailedToSend++
} else if s.bytesReceived {
b.clientStats.NumCallsFinishedKnownReceived++
}
}
}()
b.clientStats.NumCallsStarted++
if len(b.addrs) > 0 {
if b.next >= len(b.addrs) {
b.next = 0
}
next := b.next
for {
a := b.addrs[next]
next = (next + 1) % len(b.addrs)
if a.connected {
if !a.dropForRateLimiting && !a.dropForLoadBalancing {
addr = a.addr
b.next = next
b.mu.Unlock()
return
}
if !opts.BlockingWait {
b.next = next
if a.dropForLoadBalancing {
b.clientStats.NumCallsFinished++
b.clientStats.NumCallsFinishedWithDropForLoadBalancing++
} else if a.dropForRateLimiting {
b.clientStats.NumCallsFinished++
b.clientStats.NumCallsFinishedWithDropForRateLimiting++
}
b.mu.Unlock()
err = Errorf(codes.Unavailable, "%s drops requests", a.addr.Addr)
return
}
}
if next == b.next {
// Has iterated all the possible address but none is connected.
break
}
}
}
if !opts.BlockingWait {
if len(b.addrs) == 0 {
b.clientStats.NumCallsFinished++
b.clientStats.NumCallsFinishedWithClientFailedToSend++
b.mu.Unlock()
err = Errorf(codes.Unavailable, "there is no address available")
return
}
// Returns the next addr on b.addrs for a failfast RPC.
addr = b.addrs[b.next].addr
b.next++
b.mu.Unlock()
return
}
// Wait on b.waitCh for non-failfast RPCs.
if b.waitCh == nil {
ch = make(chan struct{})
b.waitCh = ch
} else {
ch = b.waitCh
}
b.mu.Unlock()
for {
select {
case <-ctx.Done():
b.mu.Lock()
b.clientStats.NumCallsFinished++
b.clientStats.NumCallsFinishedWithClientFailedToSend++
b.mu.Unlock()
err = ctx.Err()
return
case <-ch:
b.mu.Lock()
if b.done {
b.clientStats.NumCallsFinished++
b.clientStats.NumCallsFinishedWithClientFailedToSend++
b.mu.Unlock()
err = ErrClientConnClosing
return
}
if len(b.addrs) > 0 {
if b.next >= len(b.addrs) {
b.next = 0
}
next := b.next
for {
a := b.addrs[next]
next = (next + 1) % len(b.addrs)
if a.connected {
if !a.dropForRateLimiting && !a.dropForLoadBalancing {
addr = a.addr
b.next = next
b.mu.Unlock()
return
}
if !opts.BlockingWait {
b.next = next
if a.dropForLoadBalancing {
b.clientStats.NumCallsFinished++
b.clientStats.NumCallsFinishedWithDropForLoadBalancing++
} else if a.dropForRateLimiting {
b.clientStats.NumCallsFinished++
b.clientStats.NumCallsFinishedWithDropForRateLimiting++
}
b.mu.Unlock()
err = Errorf(codes.Unavailable, "drop requests for the addreess %s", a.addr.Addr)
return
}
}
if next == b.next {
// Has iterated all the possible address but none is connected.
break
}
}
}
// The newly added addr got removed by Down() again.
if b.waitCh == nil {
ch = make(chan struct{})
b.waitCh = ch
} else {
ch = b.waitCh
}
b.mu.Unlock()
}
}
}
func (b *balancer) Notify() <-chan []Address {
return b.addrCh
}
func (b *balancer) Close() error {
b.mu.Lock()
defer b.mu.Unlock()
b.done = true
if b.expTimer != nil {
b.expTimer.Stop()
}
if b.waitCh != nil {
close(b.waitCh)
}
if b.addrCh != nil {
close(b.addrCh)
}
if b.w != nil {
b.w.Close()
}
return nil
}

629
vendor/google.golang.org/grpc/grpclb/grpc_lb_v1/grpclb.pb.go generated vendored Normal file
View File

@ -0,0 +1,629 @@
// Code generated by protoc-gen-go.
// source: grpclb.proto
// DO NOT EDIT!
/*
Package grpc_lb_v1 is a generated protocol buffer package.
It is generated from these files:
grpclb.proto
It has these top-level messages:
Duration
Timestamp
LoadBalanceRequest
InitialLoadBalanceRequest
ClientStats
LoadBalanceResponse
InitialLoadBalanceResponse
ServerList
Server
*/
package grpc_lb_v1
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
type Duration struct {
// Signed seconds of the span of time. Must be from -315,576,000,000
// to +315,576,000,000 inclusive.
Seconds int64 `protobuf:"varint,1,opt,name=seconds" json:"seconds,omitempty"`
// Signed fractions of a second at nanosecond resolution of the span
// of time. Durations less than one second are represented with a 0
// `seconds` field and a positive or negative `nanos` field. For durations
// of one second or more, a non-zero value for the `nanos` field must be
// of the same sign as the `seconds` field. Must be from -999,999,999
// to +999,999,999 inclusive.
Nanos int32 `protobuf:"varint,2,opt,name=nanos" json:"nanos,omitempty"`
}
func (m *Duration) Reset() { *m = Duration{} }
func (m *Duration) String() string { return proto.CompactTextString(m) }
func (*Duration) ProtoMessage() {}
func (*Duration) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
func (m *Duration) GetSeconds() int64 {
if m != nil {
return m.Seconds
}
return 0
}
func (m *Duration) GetNanos() int32 {
if m != nil {
return m.Nanos
}
return 0
}
type Timestamp struct {
// Represents seconds of UTC time since Unix epoch
// 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
// 9999-12-31T23:59:59Z inclusive.
Seconds int64 `protobuf:"varint,1,opt,name=seconds" json:"seconds,omitempty"`
// Non-negative fractions of a second at nanosecond resolution. Negative
// second values with fractions must still have non-negative nanos values
// that count forward in time. Must be from 0 to 999,999,999
// inclusive.
Nanos int32 `protobuf:"varint,2,opt,name=nanos" json:"nanos,omitempty"`
}
func (m *Timestamp) Reset() { *m = Timestamp{} }
func (m *Timestamp) String() string { return proto.CompactTextString(m) }
func (*Timestamp) ProtoMessage() {}
func (*Timestamp) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
func (m *Timestamp) GetSeconds() int64 {
if m != nil {
return m.Seconds
}
return 0
}
func (m *Timestamp) GetNanos() int32 {
if m != nil {
return m.Nanos
}
return 0
}
type LoadBalanceRequest struct {
// Types that are valid to be assigned to LoadBalanceRequestType:
// *LoadBalanceRequest_InitialRequest
// *LoadBalanceRequest_ClientStats
LoadBalanceRequestType isLoadBalanceRequest_LoadBalanceRequestType `protobuf_oneof:"load_balance_request_type"`
}
func (m *LoadBalanceRequest) Reset() { *m = LoadBalanceRequest{} }
func (m *LoadBalanceRequest) String() string { return proto.CompactTextString(m) }
func (*LoadBalanceRequest) ProtoMessage() {}
func (*LoadBalanceRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
type isLoadBalanceRequest_LoadBalanceRequestType interface {
isLoadBalanceRequest_LoadBalanceRequestType()
}
type LoadBalanceRequest_InitialRequest struct {
InitialRequest *InitialLoadBalanceRequest `protobuf:"bytes,1,opt,name=initial_request,json=initialRequest,oneof"`
}
type LoadBalanceRequest_ClientStats struct {
ClientStats *ClientStats `protobuf:"bytes,2,opt,name=client_stats,json=clientStats,oneof"`
}
func (*LoadBalanceRequest_InitialRequest) isLoadBalanceRequest_LoadBalanceRequestType() {}
func (*LoadBalanceRequest_ClientStats) isLoadBalanceRequest_LoadBalanceRequestType() {}
func (m *LoadBalanceRequest) GetLoadBalanceRequestType() isLoadBalanceRequest_LoadBalanceRequestType {
if m != nil {
return m.LoadBalanceRequestType
}
return nil
}
func (m *LoadBalanceRequest) GetInitialRequest() *InitialLoadBalanceRequest {
if x, ok := m.GetLoadBalanceRequestType().(*LoadBalanceRequest_InitialRequest); ok {
return x.InitialRequest
}
return nil
}
func (m *LoadBalanceRequest) GetClientStats() *ClientStats {
if x, ok := m.GetLoadBalanceRequestType().(*LoadBalanceRequest_ClientStats); ok {
return x.ClientStats
}
return nil
}
// XXX_OneofFuncs is for the internal use of the proto package.
func (*LoadBalanceRequest) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
return _LoadBalanceRequest_OneofMarshaler, _LoadBalanceRequest_OneofUnmarshaler, _LoadBalanceRequest_OneofSizer, []interface{}{
(*LoadBalanceRequest_InitialRequest)(nil),
(*LoadBalanceRequest_ClientStats)(nil),
}
}
func _LoadBalanceRequest_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
m := msg.(*LoadBalanceRequest)
// load_balance_request_type
switch x := m.LoadBalanceRequestType.(type) {
case *LoadBalanceRequest_InitialRequest:
b.EncodeVarint(1<<3 | proto.WireBytes)
if err := b.EncodeMessage(x.InitialRequest); err != nil {
return err
}
case *LoadBalanceRequest_ClientStats:
b.EncodeVarint(2<<3 | proto.WireBytes)
if err := b.EncodeMessage(x.ClientStats); err != nil {
return err
}
case nil:
default:
return fmt.Errorf("LoadBalanceRequest.LoadBalanceRequestType has unexpected type %T", x)
}
return nil
}
func _LoadBalanceRequest_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
m := msg.(*LoadBalanceRequest)
switch tag {
case 1: // load_balance_request_type.initial_request
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
msg := new(InitialLoadBalanceRequest)
err := b.DecodeMessage(msg)
m.LoadBalanceRequestType = &LoadBalanceRequest_InitialRequest{msg}
return true, err
case 2: // load_balance_request_type.client_stats
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
msg := new(ClientStats)
err := b.DecodeMessage(msg)
m.LoadBalanceRequestType = &LoadBalanceRequest_ClientStats{msg}
return true, err
default:
return false, nil
}
}
func _LoadBalanceRequest_OneofSizer(msg proto.Message) (n int) {
m := msg.(*LoadBalanceRequest)
// load_balance_request_type
switch x := m.LoadBalanceRequestType.(type) {
case *LoadBalanceRequest_InitialRequest:
s := proto.Size(x.InitialRequest)
n += proto.SizeVarint(1<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(s))
n += s
case *LoadBalanceRequest_ClientStats:
s := proto.Size(x.ClientStats)
n += proto.SizeVarint(2<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(s))
n += s
case nil:
default:
panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
}
return n
}
type InitialLoadBalanceRequest struct {
// Name of load balanced service (IE, balancer.service.com)
// length should be less than 256 bytes.
Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
}
func (m *InitialLoadBalanceRequest) Reset() { *m = InitialLoadBalanceRequest{} }
func (m *InitialLoadBalanceRequest) String() string { return proto.CompactTextString(m) }
func (*InitialLoadBalanceRequest) ProtoMessage() {}
func (*InitialLoadBalanceRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
func (m *InitialLoadBalanceRequest) GetName() string {
if m != nil {
return m.Name
}
return ""
}
// Contains client level statistics that are useful to load balancing. Each
// count except the timestamp should be reset to zero after reporting the stats.
type ClientStats struct {
// The timestamp of generating the report.
Timestamp *Timestamp `protobuf:"bytes,1,opt,name=timestamp" json:"timestamp,omitempty"`
// The total number of RPCs that started.
NumCallsStarted int64 `protobuf:"varint,2,opt,name=num_calls_started,json=numCallsStarted" json:"num_calls_started,omitempty"`
// The total number of RPCs that finished.
NumCallsFinished int64 `protobuf:"varint,3,opt,name=num_calls_finished,json=numCallsFinished" json:"num_calls_finished,omitempty"`
// The total number of RPCs that were dropped by the client because of rate
// limiting.
NumCallsFinishedWithDropForRateLimiting int64 `protobuf:"varint,4,opt,name=num_calls_finished_with_drop_for_rate_limiting,json=numCallsFinishedWithDropForRateLimiting" json:"num_calls_finished_with_drop_for_rate_limiting,omitempty"`
// The total number of RPCs that were dropped by the client because of load
// balancing.
NumCallsFinishedWithDropForLoadBalancing int64 `protobuf:"varint,5,opt,name=num_calls_finished_with_drop_for_load_balancing,json=numCallsFinishedWithDropForLoadBalancing" json:"num_calls_finished_with_drop_for_load_balancing,omitempty"`
// The total number of RPCs that failed to reach a server except dropped RPCs.
NumCallsFinishedWithClientFailedToSend int64 `protobuf:"varint,6,opt,name=num_calls_finished_with_client_failed_to_send,json=numCallsFinishedWithClientFailedToSend" json:"num_calls_finished_with_client_failed_to_send,omitempty"`
// The total number of RPCs that finished and are known to have been received
// by a server.
NumCallsFinishedKnownReceived int64 `protobuf:"varint,7,opt,name=num_calls_finished_known_received,json=numCallsFinishedKnownReceived" json:"num_calls_finished_known_received,omitempty"`
}
func (m *ClientStats) Reset() { *m = ClientStats{} }
func (m *ClientStats) String() string { return proto.CompactTextString(m) }
func (*ClientStats) ProtoMessage() {}
func (*ClientStats) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
func (m *ClientStats) GetTimestamp() *Timestamp {
if m != nil {
return m.Timestamp
}
return nil
}
func (m *ClientStats) GetNumCallsStarted() int64 {
if m != nil {
return m.NumCallsStarted
}
return 0
}
func (m *ClientStats) GetNumCallsFinished() int64 {
if m != nil {
return m.NumCallsFinished
}
return 0
}
func (m *ClientStats) GetNumCallsFinishedWithDropForRateLimiting() int64 {
if m != nil {
return m.NumCallsFinishedWithDropForRateLimiting
}
return 0
}
func (m *ClientStats) GetNumCallsFinishedWithDropForLoadBalancing() int64 {
if m != nil {
return m.NumCallsFinishedWithDropForLoadBalancing
}
return 0
}
func (m *ClientStats) GetNumCallsFinishedWithClientFailedToSend() int64 {
if m != nil {
return m.NumCallsFinishedWithClientFailedToSend
}
return 0
}
func (m *ClientStats) GetNumCallsFinishedKnownReceived() int64 {
if m != nil {
return m.NumCallsFinishedKnownReceived
}
return 0
}
type LoadBalanceResponse struct {
// Types that are valid to be assigned to LoadBalanceResponseType:
// *LoadBalanceResponse_InitialResponse
// *LoadBalanceResponse_ServerList
LoadBalanceResponseType isLoadBalanceResponse_LoadBalanceResponseType `protobuf_oneof:"load_balance_response_type"`
}
func (m *LoadBalanceResponse) Reset() { *m = LoadBalanceResponse{} }
func (m *LoadBalanceResponse) String() string { return proto.CompactTextString(m) }
func (*LoadBalanceResponse) ProtoMessage() {}
func (*LoadBalanceResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
type isLoadBalanceResponse_LoadBalanceResponseType interface {
isLoadBalanceResponse_LoadBalanceResponseType()
}
type LoadBalanceResponse_InitialResponse struct {
InitialResponse *InitialLoadBalanceResponse `protobuf:"bytes,1,opt,name=initial_response,json=initialResponse,oneof"`
}
type LoadBalanceResponse_ServerList struct {
ServerList *ServerList `protobuf:"bytes,2,opt,name=server_list,json=serverList,oneof"`
}
func (*LoadBalanceResponse_InitialResponse) isLoadBalanceResponse_LoadBalanceResponseType() {}
func (*LoadBalanceResponse_ServerList) isLoadBalanceResponse_LoadBalanceResponseType() {}
func (m *LoadBalanceResponse) GetLoadBalanceResponseType() isLoadBalanceResponse_LoadBalanceResponseType {
if m != nil {
return m.LoadBalanceResponseType
}
return nil
}
func (m *LoadBalanceResponse) GetInitialResponse() *InitialLoadBalanceResponse {
if x, ok := m.GetLoadBalanceResponseType().(*LoadBalanceResponse_InitialResponse); ok {
return x.InitialResponse
}
return nil
}
func (m *LoadBalanceResponse) GetServerList() *ServerList {
if x, ok := m.GetLoadBalanceResponseType().(*LoadBalanceResponse_ServerList); ok {
return x.ServerList
}
return nil
}
// XXX_OneofFuncs is for the internal use of the proto package.
func (*LoadBalanceResponse) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
return _LoadBalanceResponse_OneofMarshaler, _LoadBalanceResponse_OneofUnmarshaler, _LoadBalanceResponse_OneofSizer, []interface{}{
(*LoadBalanceResponse_InitialResponse)(nil),
(*LoadBalanceResponse_ServerList)(nil),
}
}
func _LoadBalanceResponse_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
m := msg.(*LoadBalanceResponse)
// load_balance_response_type
switch x := m.LoadBalanceResponseType.(type) {
case *LoadBalanceResponse_InitialResponse:
b.EncodeVarint(1<<3 | proto.WireBytes)
if err := b.EncodeMessage(x.InitialResponse); err != nil {
return err
}
case *LoadBalanceResponse_ServerList:
b.EncodeVarint(2<<3 | proto.WireBytes)
if err := b.EncodeMessage(x.ServerList); err != nil {
return err
}
case nil:
default:
return fmt.Errorf("LoadBalanceResponse.LoadBalanceResponseType has unexpected type %T", x)
}
return nil
}
func _LoadBalanceResponse_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
m := msg.(*LoadBalanceResponse)
switch tag {
case 1: // load_balance_response_type.initial_response
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
msg := new(InitialLoadBalanceResponse)
err := b.DecodeMessage(msg)
m.LoadBalanceResponseType = &LoadBalanceResponse_InitialResponse{msg}
return true, err
case 2: // load_balance_response_type.server_list
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
msg := new(ServerList)
err := b.DecodeMessage(msg)
m.LoadBalanceResponseType = &LoadBalanceResponse_ServerList{msg}
return true, err
default:
return false, nil
}
}
func _LoadBalanceResponse_OneofSizer(msg proto.Message) (n int) {
m := msg.(*LoadBalanceResponse)
// load_balance_response_type
switch x := m.LoadBalanceResponseType.(type) {
case *LoadBalanceResponse_InitialResponse:
s := proto.Size(x.InitialResponse)
n += proto.SizeVarint(1<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(s))
n += s
case *LoadBalanceResponse_ServerList:
s := proto.Size(x.ServerList)
n += proto.SizeVarint(2<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(s))
n += s
case nil:
default:
panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
}
return n
}
type InitialLoadBalanceResponse struct {
// This is an application layer redirect that indicates the client should use
// the specified server for load balancing. When this field is non-empty in
// the response, the client should open a separate connection to the
// load_balancer_delegate and call the BalanceLoad method. Its length should
// be less than 64 bytes.
LoadBalancerDelegate string `protobuf:"bytes,1,opt,name=load_balancer_delegate,json=loadBalancerDelegate" json:"load_balancer_delegate,omitempty"`
// This interval defines how often the client should send the client stats
// to the load balancer. Stats should only be reported when the duration is
// positive.
ClientStatsReportInterval *Duration `protobuf:"bytes,2,opt,name=client_stats_report_interval,json=clientStatsReportInterval" json:"client_stats_report_interval,omitempty"`
}
func (m *InitialLoadBalanceResponse) Reset() { *m = InitialLoadBalanceResponse{} }
func (m *InitialLoadBalanceResponse) String() string { return proto.CompactTextString(m) }
func (*InitialLoadBalanceResponse) ProtoMessage() {}
func (*InitialLoadBalanceResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
func (m *InitialLoadBalanceResponse) GetLoadBalancerDelegate() string {
if m != nil {
return m.LoadBalancerDelegate
}
return ""
}
func (m *InitialLoadBalanceResponse) GetClientStatsReportInterval() *Duration {
if m != nil {
return m.ClientStatsReportInterval
}
return nil
}
type ServerList struct {
// Contains a list of servers selected by the load balancer. The list will
// be updated when server resolutions change or as needed to balance load
// across more servers. The client should consume the server list in order
// unless instructed otherwise via the client_config.
Servers []*Server `protobuf:"bytes,1,rep,name=servers" json:"servers,omitempty"`
// Indicates the amount of time that the client should consider this server
// list as valid. It may be considered stale after waiting this interval of
// time after receiving the list. If the interval is not positive, the
// client can assume the list is valid until the next list is received.
ExpirationInterval *Duration `protobuf:"bytes,3,opt,name=expiration_interval,json=expirationInterval" json:"expiration_interval,omitempty"`
}
func (m *ServerList) Reset() { *m = ServerList{} }
func (m *ServerList) String() string { return proto.CompactTextString(m) }
func (*ServerList) ProtoMessage() {}
func (*ServerList) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
func (m *ServerList) GetServers() []*Server {
if m != nil {
return m.Servers
}
return nil
}
func (m *ServerList) GetExpirationInterval() *Duration {
if m != nil {
return m.ExpirationInterval
}
return nil
}
// Contains server information. When none of the [drop_for_*] fields are true,
// use the other fields. When drop_for_rate_limiting is true, ignore all other
// fields. Use drop_for_load_balancing only when it is true and
// drop_for_rate_limiting is false.
type Server struct {
// A resolved address for the server, serialized in network-byte-order. It may
// either be an IPv4 or IPv6 address.
IpAddress []byte `protobuf:"bytes,1,opt,name=ip_address,json=ipAddress,proto3" json:"ip_address,omitempty"`
// A resolved port number for the server.
Port int32 `protobuf:"varint,2,opt,name=port" json:"port,omitempty"`
// An opaque but printable token given to the frontend for each pick. All
// frontend requests for that pick must include the token in its initial
// metadata. The token is used by the backend to verify the request and to
// allow the backend to report load to the gRPC LB system.
//
// Its length is variable but less than 50 bytes.
LoadBalanceToken string `protobuf:"bytes,3,opt,name=load_balance_token,json=loadBalanceToken" json:"load_balance_token,omitempty"`
// Indicates whether this particular request should be dropped by the client
// for rate limiting.
DropForRateLimiting bool `protobuf:"varint,4,opt,name=drop_for_rate_limiting,json=dropForRateLimiting" json:"drop_for_rate_limiting,omitempty"`
// Indicates whether this particular request should be dropped by the client
// for load balancing.
DropForLoadBalancing bool `protobuf:"varint,5,opt,name=drop_for_load_balancing,json=dropForLoadBalancing" json:"drop_for_load_balancing,omitempty"`
}
func (m *Server) Reset() { *m = Server{} }
func (m *Server) String() string { return proto.CompactTextString(m) }
func (*Server) ProtoMessage() {}
func (*Server) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{8} }
func (m *Server) GetIpAddress() []byte {
if m != nil {
return m.IpAddress
}
return nil
}
func (m *Server) GetPort() int32 {
if m != nil {
return m.Port
}
return 0
}
func (m *Server) GetLoadBalanceToken() string {
if m != nil {
return m.LoadBalanceToken
}
return ""
}
func (m *Server) GetDropForRateLimiting() bool {
if m != nil {
return m.DropForRateLimiting
}
return false
}
func (m *Server) GetDropForLoadBalancing() bool {
if m != nil {
return m.DropForLoadBalancing
}
return false
}
func init() {
proto.RegisterType((*Duration)(nil), "grpc.lb.v1.Duration")
proto.RegisterType((*Timestamp)(nil), "grpc.lb.v1.Timestamp")
proto.RegisterType((*LoadBalanceRequest)(nil), "grpc.lb.v1.LoadBalanceRequest")
proto.RegisterType((*InitialLoadBalanceRequest)(nil), "grpc.lb.v1.InitialLoadBalanceRequest")
proto.RegisterType((*ClientStats)(nil), "grpc.lb.v1.ClientStats")
proto.RegisterType((*LoadBalanceResponse)(nil), "grpc.lb.v1.LoadBalanceResponse")
proto.RegisterType((*InitialLoadBalanceResponse)(nil), "grpc.lb.v1.InitialLoadBalanceResponse")
proto.RegisterType((*ServerList)(nil), "grpc.lb.v1.ServerList")
proto.RegisterType((*Server)(nil), "grpc.lb.v1.Server")
}
func init() { proto.RegisterFile("grpclb.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
// 733 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x94, 0x55, 0xdd, 0x4e, 0x1b, 0x39,
0x14, 0x66, 0x36, 0xfc, 0xe5, 0x24, 0x5a, 0x58, 0x93, 0x85, 0xc0, 0xc2, 0x2e, 0x1b, 0xa9, 0x34,
0xaa, 0x68, 0x68, 0x43, 0x7b, 0xd1, 0x9f, 0x9b, 0x02, 0x45, 0x41, 0xe5, 0xa2, 0x72, 0xa8, 0x7a,
0x55, 0x59, 0x4e, 0xc6, 0x80, 0xc5, 0xc4, 0x9e, 0xda, 0x4e, 0x68, 0x2f, 0x7b, 0xd9, 0x47, 0xe9,
0x63, 0x54, 0x7d, 0x86, 0xbe, 0x4f, 0x65, 0x7b, 0x26, 0x33, 0x90, 0x1f, 0xd4, 0xbb, 0xf1, 0xf1,
0x77, 0xbe, 0xf3, 0xf9, 0xd8, 0xdf, 0x19, 0x28, 0x5f, 0xa8, 0xb8, 0x1b, 0x75, 0x1a, 0xb1, 0x92,
0x46, 0x22, 0xb0, 0xab, 0x46, 0xd4, 0x69, 0x0c, 0x1e, 0xd7, 0x9e, 0xc3, 0xe2, 0x51, 0x5f, 0x51,
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0x8a, 0x22, 0xe6, 0x73, 0xcc, 0x6a, 0x7b, 0xb0, 0x3e, 0x51, 0x09, 0x42, 0x30, 0x2b, 0x68, 0x8f,
0x39, 0xf9, 0x45, 0xec, 0xbe, 0x6b, 0x5f, 0x67, 0xa1, 0x94, 0x2b, 0x86, 0xf6, 0xa1, 0x68, 0xd2,
0x0e, 0x26, 0xe7, 0xfc, 0x3b, 0x2f, 0x6c, 0xd8, 0x5e, 0x9c, 0xe1, 0xd0, 0x03, 0xf8, 0x4b, 0xf4,
0x7b, 0xa4, 0x4b, 0xa3, 0x48, 0xdb, 0x33, 0x29, 0xc3, 0x42, 0x77, 0xaa, 0x02, 0x5e, 0x12, 0xfd,
0xde, 0xa1, 0x8d, 0xb7, 0x7d, 0x18, 0xed, 0x02, 0xca, 0xb0, 0xe7, 0x5c, 0x70, 0x7d, 0xc9, 0xc2,
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0x5f, 0xd5, 0xb1, 0xc3, 0x9f, 0xc9, 0x36, 0x13, 0x21, 0x6a, 0xc1, 0xff, 0x63, 0xe8, 0xaf, 0x84,
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0x16, 0x85, 0x13, 0x50, 0xed, 0x47, 0x00, 0x2b, 0x37, 0x9e, 0x8d, 0x8e, 0xa5, 0xd0, 0x0c, 0xb5,
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0xcb, 0x01, 0x9e, 0xd3, 0x5b, 0xe0, 0x5b, 0x00, 0x1b, 0x93, 0xa5, 0xa0, 0x27, 0xb0, 0x9a, 0x4f,
0x56, 0x24, 0x64, 0x11, 0xbb, 0xa0, 0x26, 0xb5, 0x45, 0x25, 0xca, 0x92, 0xd4, 0x51, 0xb2, 0x87,
0xde, 0xc1, 0x66, 0xde, 0xb2, 0x44, 0xb1, 0x58, 0x2a, 0x43, 0xb8, 0x30, 0x4c, 0x0d, 0x68, 0x94,
0xc8, 0xaf, 0xe4, 0xe5, 0xa7, 0x43, 0x0c, 0xaf, 0xe7, 0xdc, 0x8b, 0x5d, 0xde, 0x49, 0x92, 0x56,
0xfb, 0x12, 0x00, 0x64, 0xc7, 0x44, 0xbb, 0x76, 0x62, 0xd9, 0x95, 0x9d, 0x58, 0x85, 0x7a, 0xa9,
0x89, 0x46, 0xfb, 0x81, 0x53, 0x08, 0x7a, 0x0d, 0x2b, 0xec, 0x53, 0xcc, 0x7d, 0x95, 0x4c, 0x4a,
0x61, 0x8a, 0x14, 0x94, 0x25, 0x0c, 0x35, 0xfc, 0x0c, 0x60, 0xde, 0x53, 0xa3, 0x2d, 0x00, 0x1e,
0x13, 0x1a, 0x86, 0x8a, 0x69, 0x3f, 0x34, 0xcb, 0xb8, 0xc8, 0xe3, 0x57, 0x3e, 0x60, 0xe7, 0x87,
0x55, 0x9f, 0x4c, 0x4d, 0xf7, 0x6d, 0xed, 0x7c, 0xe3, 0x2e, 0x8c, 0xbc, 0x62, 0xc2, 0x69, 0x28,
0xe2, 0xe5, 0x5c, 0x2b, 0xcf, 0x6c, 0x1c, 0xed, 0xc3, 0xea, 0x14, 0xdb, 0x2e, 0xe2, 0x95, 0x70,
0x8c, 0x45, 0x9f, 0xc2, 0xda, 0x34, 0x2b, 0x2e, 0xe2, 0x4a, 0x38, 0xc6, 0x76, 0xcd, 0x0e, 0x94,
0x73, 0xf7, 0xaf, 0x10, 0x86, 0x52, 0xf2, 0x6d, 0xc3, 0xe8, 0xdf, 0x7c, 0x83, 0x46, 0x87, 0xe5,
0xc6, 0x7f, 0x13, 0xf7, 0xfd, 0x43, 0xaa, 0x07, 0x8f, 0x82, 0xce, 0xbc, 0xfb, 0x7d, 0xed, 0xff,
0x0a, 0x00, 0x00, 0xff, 0xff, 0x64, 0xbf, 0xda, 0x5e, 0xce, 0x06, 0x00, 0x00,
}

179
vendor/google.golang.org/grpc/grpclb/grpc_lb_v1/grpclb.proto generated vendored Normal file
View File

@ -0,0 +1,179 @@
// Copyright 2016, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
syntax = "proto3";
package grpc.lb.v1;
message Duration {
// Signed seconds of the span of time. Must be from -315,576,000,000
// to +315,576,000,000 inclusive.
int64 seconds = 1;
// Signed fractions of a second at nanosecond resolution of the span
// of time. Durations less than one second are represented with a 0
// `seconds` field and a positive or negative `nanos` field. For durations
// of one second or more, a non-zero value for the `nanos` field must be
// of the same sign as the `seconds` field. Must be from -999,999,999
// to +999,999,999 inclusive.
int32 nanos = 2;
}
message Timestamp {
// Represents seconds of UTC time since Unix epoch
// 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
// 9999-12-31T23:59:59Z inclusive.
int64 seconds = 1;
// Non-negative fractions of a second at nanosecond resolution. Negative
// second values with fractions must still have non-negative nanos values
// that count forward in time. Must be from 0 to 999,999,999
// inclusive.
int32 nanos = 2;
}
service LoadBalancer {
// Bidirectional rpc to get a list of servers.
rpc BalanceLoad(stream LoadBalanceRequest)
returns (stream LoadBalanceResponse);
}
message LoadBalanceRequest {
oneof load_balance_request_type {
// This message should be sent on the first request to the load balancer.
InitialLoadBalanceRequest initial_request = 1;
// The client stats should be periodically reported to the load balancer
// based on the duration defined in the InitialLoadBalanceResponse.
ClientStats client_stats = 2;
}
}
message InitialLoadBalanceRequest {
// Name of load balanced service (IE, balancer.service.com)
// length should be less than 256 bytes.
string name = 1;
}
// Contains client level statistics that are useful to load balancing. Each
// count except the timestamp should be reset to zero after reporting the stats.
message ClientStats {
// The timestamp of generating the report.
Timestamp timestamp = 1;
// The total number of RPCs that started.
int64 num_calls_started = 2;
// The total number of RPCs that finished.
int64 num_calls_finished = 3;
// The total number of RPCs that were dropped by the client because of rate
// limiting.
int64 num_calls_finished_with_drop_for_rate_limiting = 4;
// The total number of RPCs that were dropped by the client because of load
// balancing.
int64 num_calls_finished_with_drop_for_load_balancing = 5;
// The total number of RPCs that failed to reach a server except dropped RPCs.
int64 num_calls_finished_with_client_failed_to_send = 6;
// The total number of RPCs that finished and are known to have been received
// by a server.
int64 num_calls_finished_known_received = 7;
}
message LoadBalanceResponse {
oneof load_balance_response_type {
// This message should be sent on the first response to the client.
InitialLoadBalanceResponse initial_response = 1;
// Contains the list of servers selected by the load balancer. The client
// should send requests to these servers in the specified order.
ServerList server_list = 2;
}
}
message InitialLoadBalanceResponse {
// This is an application layer redirect that indicates the client should use
// the specified server for load balancing. When this field is non-empty in
// the response, the client should open a separate connection to the
// load_balancer_delegate and call the BalanceLoad method. Its length should
// be less than 64 bytes.
string load_balancer_delegate = 1;
// This interval defines how often the client should send the client stats
// to the load balancer. Stats should only be reported when the duration is
// positive.
Duration client_stats_report_interval = 2;
}
message ServerList {
// Contains a list of servers selected by the load balancer. The list will
// be updated when server resolutions change or as needed to balance load
// across more servers. The client should consume the server list in order
// unless instructed otherwise via the client_config.
repeated Server servers = 1;
// Indicates the amount of time that the client should consider this server
// list as valid. It may be considered stale after waiting this interval of
// time after receiving the list. If the interval is not positive, the
// client can assume the list is valid until the next list is received.
Duration expiration_interval = 3;
}
// Contains server information. When none of the [drop_for_*] fields are true,
// use the other fields. When drop_for_rate_limiting is true, ignore all other
// fields. Use drop_for_load_balancing only when it is true and
// drop_for_rate_limiting is false.
message Server {
// A resolved address for the server, serialized in network-byte-order. It may
// either be an IPv4 or IPv6 address.
bytes ip_address = 1;
// A resolved port number for the server.
int32 port = 2;
// An opaque but printable token given to the frontend for each pick. All
// frontend requests for that pick must include the token in its initial
// metadata. The token is used by the backend to verify the request and to
// allow the backend to report load to the gRPC LB system.
//
// Its length is variable but less than 50 bytes.
string load_balance_token = 3;
// Indicates whether this particular request should be dropped by the client
// for rate limiting.
bool drop_for_rate_limiting = 4;
// Indicates whether this particular request should be dropped by the client
// for load balancing.
bool drop_for_load_balancing = 5;
}

2
vendor/google.golang.org/grpc/interceptor.go generated vendored
View File

@ -40,7 +40,7 @@ import (
// UnaryInvoker is called by UnaryClientInterceptor to complete RPCs.
type UnaryInvoker func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, opts ...CallOption) error
// UnaryClientInterceptor intercepts the execution of a unary RPC on the client. inovker is the handler to complete the RPC
// UnaryClientInterceptor intercepts the execution of a unary RPC on the client. invoker is the handler to complete the RPC
// and it is the responsibility of the interceptor to call it.
// This is the EXPERIMENTAL API.
type UnaryClientInterceptor func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, invoker UnaryInvoker, opts ...CallOption) error

80
vendor/google.golang.org/grpc/keepalive/keepalive.go generated vendored Normal file
View File

@ -0,0 +1,80 @@
/*
*
* Copyright 2017, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// Package keepalive defines configurable parameters for point-to-point healthcheck.
package keepalive
import (
"time"
)
// ClientParameters is used to set keepalive parameters on the client-side.
// These configure how the client will actively probe to notice when a connection broken
// and to cause activity so intermediaries are aware the connection is still in use.
// Make sure these parameters are set in coordination with the keepalive policy on the server,
// as incompatible settings can result in closing of connection.
type ClientParameters struct {
// After a duration of this time if the client doesn't see any activity it pings the server to see if the transport is still alive.
Time time.Duration // The current default value is infinity.
// After having pinged for keepalive check, the client waits for a duration of Timeout and if no activity is seen even after that
// the connection is closed.
Timeout time.Duration // The current default value is 20 seconds.
// If true, client runs keepalive checks even with no active RPCs.
PermitWithoutStream bool // false by default.
}
// ServerParameters is used to set keepalive and max-age parameters on the server-side.
type ServerParameters struct {
// MaxConnectionIdle is a duration for the amount of time after which an idle connection would be closed by sending a GoAway.
// Idleness duration is defined since the most recent time the number of outstanding RPCs became zero or the connection establishment.
MaxConnectionIdle time.Duration // The current default value is infinity.
// MaxConnectionAge is a duration for the maximum amount of time a connection may exist before it will be closed by sending a GoAway.
// A random jitter of +/-10% will be added to MaxConnectionAge to spread out connection storms.
MaxConnectionAge time.Duration // The current default value is infinity.
// MaxConnectinoAgeGrace is an additive period after MaxConnectionAge after which the connection will be forcibly closed.
MaxConnectionAgeGrace time.Duration // The current default value is infinity.
// After a duration of this time if the server doesn't see any activity it pings the client to see if the transport is still alive.
Time time.Duration // The current default value is 2 hours.
// After having pinged for keepalive check, the server waits for a duration of Timeout and if no activity is seen even after that
// the connection is closed.
Timeout time.Duration // The current default value is 20 seconds.
}
// EnforcementPolicy is used to set keepalive enforcement policy on the server-side.
// Server will close connection with a client that violates this policy.
type EnforcementPolicy struct {
// MinTime is the minimum amount of time a client should wait before sending a keepalive ping.
MinTime time.Duration // The current default value is 5 minutes.
// If true, server expects keepalive pings even when there are no active streams(RPCs).
PermitWithoutStream bool // false by default.
}

85
vendor/google.golang.org/grpc/metadata/metadata.go generated vendored
View File

@ -32,49 +32,19 @@
*/
// Package metadata define the structure of the metadata supported by gRPC library.
// Please refer to http://www.grpc.io/docs/guides/wire.html for more information about custom-metadata.
package metadata // import "google.golang.org/grpc/metadata"
import (
"encoding/base64"
"fmt"
"strings"
"golang.org/x/net/context"
)
const (
binHdrSuffix = "-bin"
)
// encodeKeyValue encodes key and value qualified for transmission via gRPC.
// Transmitting binary headers violates HTTP/2 spec.
// TODO(zhaoq): Maybe check if k is ASCII also.
func encodeKeyValue(k, v string) (string, string) {
k = strings.ToLower(k)
if strings.HasSuffix(k, binHdrSuffix) {
val := base64.StdEncoding.EncodeToString([]byte(v))
v = string(val)
}
return k, v
}
// DecodeKeyValue returns the original key and value corresponding to the
// encoded data in k, v.
// If k is a binary header and v contains comma, v is split on comma before decoded,
// and the decoded v will be joined with comma before returned.
// DecodeKeyValue returns k, v, nil. It is deprecated and should not be used.
func DecodeKeyValue(k, v string) (string, string, error) {
if !strings.HasSuffix(k, binHdrSuffix) {
return k, v, nil
}
vvs := strings.Split(v, ",")
for i, vv := range vvs {
val, err := base64.StdEncoding.DecodeString(vv)
if err != nil {
return "", "", err
}
vvs[i] = string(val)
}
return k, strings.Join(vvs, ","), nil
return k, v, nil
}
// MD is a mapping from metadata keys to values. Users should use the following
@ -82,10 +52,11 @@ func DecodeKeyValue(k, v string) (string, string, error) {
type MD map[string][]string
// New creates a MD from given key-value map.
// Keys are automatically converted to lowercase.
func New(m map[string]string) MD {
md := MD{}
for k, v := range m {
key, val := encodeKeyValue(k, v)
for k, val := range m {
key := strings.ToLower(k)
md[key] = append(md[key], val)
}
return md
@ -93,19 +64,19 @@ func New(m map[string]string) MD {
// Pairs returns an MD formed by the mapping of key, value ...
// Pairs panics if len(kv) is odd.
// Keys are automatically converted to lowercase.
func Pairs(kv ...string) MD {
if len(kv)%2 == 1 {
panic(fmt.Sprintf("metadata: Pairs got the odd number of input pairs for metadata: %d", len(kv)))
}
md := MD{}
var k string
var key string
for i, s := range kv {
if i%2 == 0 {
k = s
key = strings.ToLower(s)
continue
}
key, val := encodeKeyValue(k, s)
md[key] = append(md[key], val)
md[key] = append(md[key], s)
}
return md
}
@ -133,15 +104,41 @@ func Join(mds ...MD) MD {
return out
}
type mdKey struct{}
type mdIncomingKey struct{}
type mdOutgoingKey struct{}
// NewContext creates a new context with md attached.
// NewContext is a wrapper for NewOutgoingContext(ctx, md). Deprecated.
func NewContext(ctx context.Context, md MD) context.Context {
return context.WithValue(ctx, mdKey{}, md)
return NewOutgoingContext(ctx, md)
}
// FromContext returns the MD in ctx if it exists.
// NewIncomingContext creates a new context with incoming md attached.
func NewIncomingContext(ctx context.Context, md MD) context.Context {
return context.WithValue(ctx, mdIncomingKey{}, md)
}
// NewOutgoingContext creates a new context with outgoing md attached.
func NewOutgoingContext(ctx context.Context, md MD) context.Context {
return context.WithValue(ctx, mdOutgoingKey{}, md)
}
// FromContext is a wrapper for FromIncomingContext(ctx). Deprecated.
func FromContext(ctx context.Context) (md MD, ok bool) {
md, ok = ctx.Value(mdKey{}).(MD)
return FromIncomingContext(ctx)
}
// FromIncomingContext returns the incoming MD in ctx if it exists. The
// returned md should be immutable, writing to it may cause races.
// Modification should be made to the copies of the returned md.
func FromIncomingContext(ctx context.Context) (md MD, ok bool) {
md, ok = ctx.Value(mdIncomingKey{}).(MD)
return
}
// FromOutgoingContext returns the outgoing MD in ctx if it exists. The
// returned md should be immutable, writing to it may cause races.
// Modification should be made to the copies of the returned md.
func FromOutgoingContext(ctx context.Context) (md MD, ok bool) {
md, ok = ctx.Value(mdOutgoingKey{}).(MD)
return
}

145
vendor/google.golang.org/grpc/proxy.go generated vendored Normal file
View File

@ -0,0 +1,145 @@
/*
*
* Copyright 2017, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package grpc
import (
"bufio"
"errors"
"fmt"
"io"
"net"
"net/http"
"net/http/httputil"
"net/url"
"golang.org/x/net/context"
)
var (
// errDisabled indicates that proxy is disabled for the address.
errDisabled = errors.New("proxy is disabled for the address")
// The following variable will be overwritten in the tests.
httpProxyFromEnvironment = http.ProxyFromEnvironment
)
func mapAddress(ctx context.Context, address string) (string, error) {
req := &http.Request{
URL: &url.URL{
Scheme: "https",
Host: address,
},
}
url, err := httpProxyFromEnvironment(req)
if err != nil {
return "", err
}
if url == nil {
return "", errDisabled
}
return url.Host, nil
}
// To read a response from a net.Conn, http.ReadResponse() takes a bufio.Reader.
// It's possible that this reader reads more than what's need for the response and stores
// those bytes in the buffer.
// bufConn wraps the original net.Conn and the bufio.Reader to make sure we don't lose the
// bytes in the buffer.
type bufConn struct {
net.Conn
r io.Reader
}
func (c *bufConn) Read(b []byte) (int, error) {
return c.r.Read(b)
}
func doHTTPConnectHandshake(ctx context.Context, conn net.Conn, addr string) (_ net.Conn, err error) {
defer func() {
if err != nil {
conn.Close()
}
}()
req := (&http.Request{
Method: http.MethodConnect,
URL: &url.URL{Host: addr},
Header: map[string][]string{"User-Agent": {grpcUA}},
})
if err := sendHTTPRequest(ctx, req, conn); err != nil {
return nil, fmt.Errorf("failed to write the HTTP request: %v", err)
}
r := bufio.NewReader(conn)
resp, err := http.ReadResponse(r, req)
if err != nil {
return nil, fmt.Errorf("reading server HTTP response: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
dump, err := httputil.DumpResponse(resp, true)
if err != nil {
return nil, fmt.Errorf("failed to do connect handshake, status code: %s", resp.Status)
}
return nil, fmt.Errorf("failed to do connect handshake, response: %q", dump)
}
return &bufConn{Conn: conn, r: r}, nil
}
// newProxyDialer returns a dialer that connects to proxy first if necessary.
// The returned dialer checks if a proxy is necessary, dial to the proxy with the
// provided dialer, does HTTP CONNECT handshake and returns the connection.
func newProxyDialer(dialer func(context.Context, string) (net.Conn, error)) func(context.Context, string) (net.Conn, error) {
return func(ctx context.Context, addr string) (conn net.Conn, err error) {
var skipHandshake bool
newAddr, err := mapAddress(ctx, addr)
if err != nil {
if err != errDisabled {
return nil, err
}
skipHandshake = true
newAddr = addr
}
conn, err = dialer(ctx, newAddr)
if err != nil {
return
}
if !skipHandshake {
conn, err = doHTTPConnectHandshake(ctx, conn, addr)
}
return
}
}

206
vendor/google.golang.org/grpc/rpc_util.go generated vendored
View File

@ -37,45 +37,21 @@ import (
"bytes"
"compress/gzip"
"encoding/binary"
"fmt"
"io"
"io/ioutil"
"math"
"os"
"time"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
"google.golang.org/grpc/transport"
)
// Codec defines the interface gRPC uses to encode and decode messages.
type Codec interface {
// Marshal returns the wire format of v.
Marshal(v interface{}) ([]byte, error)
// Unmarshal parses the wire format into v.
Unmarshal(data []byte, v interface{}) error
// String returns the name of the Codec implementation. The returned
// string will be used as part of content type in transmission.
String() string
}
// protoCodec is a Codec implementation with protobuf. It is the default codec for gRPC.
type protoCodec struct{}
func (protoCodec) Marshal(v interface{}) ([]byte, error) {
return proto.Marshal(v.(proto.Message))
}
func (protoCodec) Unmarshal(data []byte, v interface{}) error {
return proto.Unmarshal(data, v.(proto.Message))
}
func (protoCodec) String() string {
return "proto"
}
// Compressor defines the interface gRPC uses to compress a message.
type Compressor interface {
// Do compresses p into w.
@ -138,6 +114,7 @@ type callInfo struct {
failFast bool
headerMD metadata.MD
trailerMD metadata.MD
peer *peer.Peer
traceInfo traceInfo // in trace.go
}
@ -181,12 +158,22 @@ func Trailer(md *metadata.MD) CallOption {
})
}
// Peer returns a CallOption that retrieves peer information for a
// unary RPC.
func Peer(peer *peer.Peer) CallOption {
return afterCall(func(c *callInfo) {
if c.peer != nil {
*peer = *c.peer
}
})
}
// FailFast configures the action to take when an RPC is attempted on broken
// connections or unreachable servers. If failfast is true, the RPC will fail
// immediately. Otherwise, the RPC client will block the call until a
// connection is available (or the call is canceled or times out) and will retry
// the call if it fails due to a transient error. Please refer to
// https://github.com/grpc/grpc/blob/master/doc/fail_fast.md
// https://github.com/grpc/grpc/blob/master/doc/fail_fast.md. Note: failFast is default to true.
func FailFast(failFast bool) CallOption {
return beforeCall(func(c *callInfo) error {
c.failFast = failFast
@ -255,9 +242,11 @@ func (p *parser) recvMsg(maxMsgSize int) (pf payloadFormat, msg []byte, err erro
// encode serializes msg and prepends the message header. If msg is nil, it
// generates the message header of 0 message length.
func encode(c Codec, msg interface{}, cp Compressor, cbuf *bytes.Buffer) ([]byte, error) {
var b []byte
var length uint
func encode(c Codec, msg interface{}, cp Compressor, cbuf *bytes.Buffer, outPayload *stats.OutPayload) ([]byte, error) {
var (
b []byte
length uint
)
if msg != nil {
var err error
// TODO(zhaoq): optimize to reduce memory alloc and copying.
@ -265,6 +254,12 @@ func encode(c Codec, msg interface{}, cp Compressor, cbuf *bytes.Buffer) ([]byte
if err != nil {
return nil, err
}
if outPayload != nil {
outPayload.Payload = msg
// TODO truncate large payload.
outPayload.Data = b
outPayload.Length = len(b)
}
if cp != nil {
if err := cp.Do(cbuf, b); err != nil {
return nil, err
@ -295,6 +290,10 @@ func encode(c Codec, msg interface{}, cp Compressor, cbuf *bytes.Buffer) ([]byte
// Copy encoded msg to buf
copy(buf[5:], b)
if outPayload != nil {
outPayload.WireLength = len(buf)
}
return buf, nil
}
@ -311,11 +310,14 @@ func checkRecvPayload(pf payloadFormat, recvCompress string, dc Decompressor) er
return nil
}
func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{}, maxMsgSize int) error {
func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{}, maxMsgSize int, inPayload *stats.InPayload) error {
pf, d, err := p.recvMsg(maxMsgSize)
if err != nil {
return err
}
if inPayload != nil {
inPayload.WireLength = len(d)
}
if err := checkRecvPayload(pf, s.RecvCompress(), dc); err != nil {
return err
}
@ -333,91 +335,90 @@ func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{
if err := c.Unmarshal(d, m); err != nil {
return Errorf(codes.Internal, "grpc: failed to unmarshal the received message %v", err)
}
if inPayload != nil {
inPayload.RecvTime = time.Now()
inPayload.Payload = m
// TODO truncate large payload.
inPayload.Data = d
inPayload.Length = len(d)
}
return nil
}
// rpcError defines the status from an RPC.
type rpcError struct {
code codes.Code
desc string
type rpcInfo struct {
bytesSent bool
bytesReceived bool
}
func (e *rpcError) Error() string {
return fmt.Sprintf("rpc error: code = %d desc = %s", e.code, e.desc)
type rpcInfoContextKey struct{}
func newContextWithRPCInfo(ctx context.Context) context.Context {
return context.WithValue(ctx, rpcInfoContextKey{}, &rpcInfo{})
}
func rpcInfoFromContext(ctx context.Context) (s *rpcInfo, ok bool) {
s, ok = ctx.Value(rpcInfoContextKey{}).(*rpcInfo)
return
}
func updateRPCInfoInContext(ctx context.Context, s rpcInfo) {
if ss, ok := rpcInfoFromContext(ctx); ok {
*ss = s
}
return
}
// Code returns the error code for err if it was produced by the rpc system.
// Otherwise, it returns codes.Unknown.
//
// Deprecated; use status.FromError and Code method instead.
func Code(err error) codes.Code {
if err == nil {
return codes.OK
}
if e, ok := err.(*rpcError); ok {
return e.code
if s, ok := status.FromError(err); ok {
return s.Code()
}
return codes.Unknown
}
// ErrorDesc returns the error description of err if it was produced by the rpc system.
// Otherwise, it returns err.Error() or empty string when err is nil.
//
// Deprecated; use status.FromError and Message method instead.
func ErrorDesc(err error) string {
if err == nil {
return ""
}
if e, ok := err.(*rpcError); ok {
return e.desc
if s, ok := status.FromError(err); ok {
return s.Message()
}
return err.Error()
}
// Errorf returns an error containing an error code and a description;
// Errorf returns nil if c is OK.
//
// Deprecated; use status.Errorf instead.
func Errorf(c codes.Code, format string, a ...interface{}) error {
if c == codes.OK {
return nil
}
return &rpcError{
code: c,
desc: fmt.Sprintf(format, a...),
}
return status.Errorf(c, format, a...)
}
// toRPCErr converts an error into a rpcError.
// toRPCErr converts an error into an error from the status package.
func toRPCErr(err error) error {
switch e := err.(type) {
case *rpcError:
if _, ok := status.FromError(err); ok {
return err
}
switch e := err.(type) {
case transport.StreamError:
return &rpcError{
code: e.Code,
desc: e.Desc,
}
return status.Error(e.Code, e.Desc)
case transport.ConnectionError:
return &rpcError{
code: codes.Internal,
desc: e.Desc,
}
return status.Error(codes.Internal, e.Desc)
default:
switch err {
case context.DeadlineExceeded:
return &rpcError{
code: codes.DeadlineExceeded,
desc: err.Error(),
}
return status.Error(codes.DeadlineExceeded, err.Error())
case context.Canceled:
return &rpcError{
code: codes.Canceled,
desc: err.Error(),
}
return status.Error(codes.Canceled, err.Error())
case ErrClientConnClosing:
return &rpcError{
code: codes.FailedPrecondition,
desc: err.Error(),
}
return status.Error(codes.FailedPrecondition, err.Error())
}
}
return Errorf(codes.Unknown, "%v", err)
return status.Error(codes.Unknown, err.Error())
}
// convertCode converts a standard Go error into its canonical code. Note that
@ -448,6 +449,44 @@ func convertCode(err error) codes.Code {
return codes.Unknown
}
// MethodConfig defines the configuration recommended by the service providers for a
// particular method.
// This is EXPERIMENTAL and subject to change.
type MethodConfig struct {
// WaitForReady indicates whether RPCs sent to this method should wait until
// the connection is ready by default (!failfast). The value specified via the
// gRPC client API will override the value set here.
WaitForReady bool
// Timeout is the default timeout for RPCs sent to this method. The actual
// deadline used will be the minimum of the value specified here and the value
// set by the application via the gRPC client API. If either one is not set,
// then the other will be used. If neither is set, then the RPC has no deadline.
Timeout time.Duration
// MaxReqSize is the maximum allowed payload size for an individual request in a
// stream (client->server) in bytes. The size which is measured is the serialized
// payload after per-message compression (but before stream compression) in bytes.
// The actual value used is the minumum of the value specified here and the value set
// by the application via the gRPC client API. If either one is not set, then the other
// will be used. If neither is set, then the built-in default is used.
// TODO: support this.
MaxReqSize uint32
// MaxRespSize is the maximum allowed payload size for an individual response in a
// stream (server->client) in bytes.
// TODO: support this.
MaxRespSize uint32
}
// ServiceConfig is provided by the service provider and contains parameters for how
// clients that connect to the service should behave.
// This is EXPERIMENTAL and subject to change.
type ServiceConfig struct {
// LB is the load balancer the service providers recommends. The balancer specified
// via grpc.WithBalancer will override this.
LB Balancer
// Methods contains a map for the methods in this service.
Methods map[string]MethodConfig
}
// SupportPackageIsVersion4 is referenced from generated protocol buffer files
// to assert that that code is compatible with this version of the grpc package.
//
@ -455,3 +494,8 @@ func convertCode(err error) codes.Code {
// requires a synchronised update of grpc-go and protoc-gen-go. This constant
// should not be referenced from any other code.
const SupportPackageIsVersion4 = true
// Version is the current grpc version.
const Version = "1.3.0"
const grpcUA = "grpc-go/" + Version

348
vendor/google.golang.org/grpc/server.go generated vendored
View File

@ -53,7 +53,11 @@ import (
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
"google.golang.org/grpc/tap"
"google.golang.org/grpc/transport"
)
@ -110,8 +114,13 @@ type options struct {
maxMsgSize int
unaryInt UnaryServerInterceptor
streamInt StreamServerInterceptor
inTapHandle tap.ServerInHandle
statsHandler stats.Handler
maxConcurrentStreams uint32
useHandlerImpl bool // use http.Handler-based server
unknownStreamDesc *StreamDesc
keepaliveParams keepalive.ServerParameters
keepalivePolicy keepalive.EnforcementPolicy
}
var defaultMaxMsgSize = 1024 * 1024 * 4 // use 4MB as the default message size limit
@ -119,6 +128,20 @@ var defaultMaxMsgSize = 1024 * 1024 * 4 // use 4MB as the default message size l
// A ServerOption sets options.
type ServerOption func(*options)
// KeepaliveParams returns a ServerOption that sets keepalive and max-age parameters for the server.
func KeepaliveParams(kp keepalive.ServerParameters) ServerOption {
return func(o *options) {
o.keepaliveParams = kp
}
}
// KeepaliveEnforcementPolicy returns a ServerOption that sets keepalive enforcement policy for the server.
func KeepaliveEnforcementPolicy(kep keepalive.EnforcementPolicy) ServerOption {
return func(o *options) {
o.keepalivePolicy = kep
}
}
// CustomCodec returns a ServerOption that sets a codec for message marshaling and unmarshaling.
func CustomCodec(codec Codec) ServerOption {
return func(o *options) {
@ -186,6 +209,42 @@ func StreamInterceptor(i StreamServerInterceptor) ServerOption {
}
}
// InTapHandle returns a ServerOption that sets the tap handle for all the server
// transport to be created. Only one can be installed.
func InTapHandle(h tap.ServerInHandle) ServerOption {
return func(o *options) {
if o.inTapHandle != nil {
panic("The tap handle has been set.")
}
o.inTapHandle = h
}
}
// StatsHandler returns a ServerOption that sets the stats handler for the server.
func StatsHandler(h stats.Handler) ServerOption {
return func(o *options) {
o.statsHandler = h
}
}
// UnknownServiceHandler returns a ServerOption that allows for adding a custom
// unknown service handler. The provided method is a bidi-streaming RPC service
// handler that will be invoked instead of returning the the "unimplemented" gRPC
// error whenever a request is received for an unregistered service or method.
// The handling function has full access to the Context of the request and the
// stream, and the invocation passes through interceptors.
func UnknownServiceHandler(streamHandler StreamHandler) ServerOption {
return func(o *options) {
o.unknownStreamDesc = &StreamDesc{
StreamName: "unknown_service_handler",
Handler: streamHandler,
// We need to assume that the users of the streamHandler will want to use both.
ClientStreams: true,
ServerStreams: true,
}
}
}
// NewServer creates a gRPC server which has no service registered and has not
// started to accept requests yet.
func NewServer(opt ...ServerOption) *Server {
@ -329,6 +388,7 @@ func (s *Server) useTransportAuthenticator(rawConn net.Conn) (net.Conn, credenti
// read gRPC requests and then call the registered handlers to reply to them.
// Serve returns when lis.Accept fails with fatal errors. lis will be closed when
// this method returns.
// Serve always returns non-nil error.
func (s *Server) Serve(lis net.Listener) error {
s.mu.Lock()
s.printf("serving")
@ -412,17 +472,25 @@ func (s *Server) handleRawConn(rawConn net.Conn) {
if s.opts.useHandlerImpl {
s.serveUsingHandler(conn)
} else {
s.serveNewHTTP2Transport(conn, authInfo)
s.serveHTTP2Transport(conn, authInfo)
}
}
// serveNewHTTP2Transport sets up a new http/2 transport (using the
// serveHTTP2Transport sets up a http/2 transport (using the
// gRPC http2 server transport in transport/http2_server.go) and
// serves streams on it.
// This is run in its own goroutine (it does network I/O in
// transport.NewServerTransport).
func (s *Server) serveNewHTTP2Transport(c net.Conn, authInfo credentials.AuthInfo) {
st, err := transport.NewServerTransport("http2", c, s.opts.maxConcurrentStreams, authInfo)
func (s *Server) serveHTTP2Transport(c net.Conn, authInfo credentials.AuthInfo) {
config := &transport.ServerConfig{
MaxStreams: s.opts.maxConcurrentStreams,
AuthInfo: authInfo,
InTapHandle: s.opts.inTapHandle,
StatsHandler: s.opts.statsHandler,
KeepaliveParams: s.opts.keepaliveParams,
KeepalivePolicy: s.opts.keepalivePolicy,
}
st, err := transport.NewServerTransport("http2", c, config)
if err != nil {
s.mu.Lock()
s.errorf("NewServerTransport(%q) failed: %v", c.RemoteAddr(), err)
@ -448,6 +516,12 @@ func (s *Server) serveStreams(st transport.ServerTransport) {
defer wg.Done()
s.handleStream(st, stream, s.traceInfo(st, stream))
}()
}, func(ctx context.Context, method string) context.Context {
if !EnableTracing {
return ctx
}
tr := trace.New("grpc.Recv."+methodFamily(method), method)
return trace.NewContext(ctx, tr)
})
wg.Wait()
}
@ -497,15 +571,17 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// traceInfo returns a traceInfo and associates it with stream, if tracing is enabled.
// If tracing is not enabled, it returns nil.
func (s *Server) traceInfo(st transport.ServerTransport, stream *transport.Stream) (trInfo *traceInfo) {
if !EnableTracing {
tr, ok := trace.FromContext(stream.Context())
if !ok {
return nil
}
trInfo = &traceInfo{
tr: trace.New("grpc.Recv."+methodFamily(stream.Method()), stream.Method()),
tr: tr,
}
trInfo.firstLine.client = false
trInfo.firstLine.remoteAddr = st.RemoteAddr()
stream.TraceContext(trInfo.tr)
if dl, ok := stream.Context().Deadline(); ok {
trInfo.firstLine.deadline = dl.Sub(time.Now())
}
@ -532,11 +608,17 @@ func (s *Server) removeConn(c io.Closer) {
}
func (s *Server) sendResponse(t transport.ServerTransport, stream *transport.Stream, msg interface{}, cp Compressor, opts *transport.Options) error {
var cbuf *bytes.Buffer
var (
cbuf *bytes.Buffer
outPayload *stats.OutPayload
)
if cp != nil {
cbuf = new(bytes.Buffer)
}
p, err := encode(s.opts.codec, msg, cp, cbuf)
if s.opts.statsHandler != nil {
outPayload = &stats.OutPayload{}
}
p, err := encode(s.opts.codec, msg, cp, cbuf, outPayload)
if err != nil {
// This typically indicates a fatal issue (e.g., memory
// corruption or hardware faults) the application program
@ -547,10 +629,33 @@ func (s *Server) sendResponse(t transport.ServerTransport, stream *transport.Str
// the optimal option.
grpclog.Fatalf("grpc: Server failed to encode response %v", err)
}
return t.Write(stream, p, opts)
err = t.Write(stream, p, opts)
if err == nil && outPayload != nil {
outPayload.SentTime = time.Now()
s.opts.statsHandler.HandleRPC(stream.Context(), outPayload)
}
return err
}
func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.Stream, srv *service, md *MethodDesc, trInfo *traceInfo) (err error) {
sh := s.opts.statsHandler
if sh != nil {
begin := &stats.Begin{
BeginTime: time.Now(),
}
sh.HandleRPC(stream.Context(), begin)
}
defer func() {
if sh != nil {
end := &stats.End{
EndTime: time.Now(),
}
if err != nil && err != io.EOF {
end.Error = toRPCErr(err)
}
sh.HandleRPC(stream.Context(), end)
}
}()
if trInfo != nil {
defer trInfo.tr.Finish()
trInfo.firstLine.client = false
@ -567,7 +672,7 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
stream.SetSendCompress(s.opts.cp.Type())
}
p := &parser{r: stream}
for {
for { // TODO: delete
pf, req, err := p.recvMsg(s.opts.maxMsgSize)
if err == io.EOF {
// The entire stream is done (for unary RPC only).
@ -577,58 +682,68 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
err = Errorf(codes.Internal, io.ErrUnexpectedEOF.Error())
}
if err != nil {
switch err := err.(type) {
case *rpcError:
if err := t.WriteStatus(stream, err.code, err.desc); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
if st, ok := status.FromError(err); ok {
if e := t.WriteStatus(stream, st); e != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
}
case transport.ConnectionError:
// Nothing to do here.
case transport.StreamError:
if err := t.WriteStatus(stream, err.Code, err.Desc); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
} else {
switch st := err.(type) {
case transport.ConnectionError:
// Nothing to do here.
case transport.StreamError:
if e := t.WriteStatus(stream, status.New(st.Code, st.Desc)); e != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
}
default:
panic(fmt.Sprintf("grpc: Unexpected error (%T) from recvMsg: %v", st, st))
}
default:
panic(fmt.Sprintf("grpc: Unexpected error (%T) from recvMsg: %v", err, err))
}
return err
}
if err := checkRecvPayload(pf, stream.RecvCompress(), s.opts.dc); err != nil {
switch err := err.(type) {
case *rpcError:
if err := t.WriteStatus(stream, err.code, err.desc); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
if st, ok := status.FromError(err); ok {
if e := t.WriteStatus(stream, st); e != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
}
default:
if err := t.WriteStatus(stream, codes.Internal, err.Error()); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
}
return err
}
if e := t.WriteStatus(stream, status.New(codes.Internal, err.Error())); e != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
}
// TODO checkRecvPayload always return RPC error. Add a return here if necessary.
}
var inPayload *stats.InPayload
if sh != nil {
inPayload = &stats.InPayload{
RecvTime: time.Now(),
}
return err
}
statusCode := codes.OK
statusDesc := ""
df := func(v interface{}) error {
if inPayload != nil {
inPayload.WireLength = len(req)
}
if pf == compressionMade {
var err error
req, err = s.opts.dc.Do(bytes.NewReader(req))
if err != nil {
if err := t.WriteStatus(stream, codes.Internal, err.Error()); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
}
return err
return Errorf(codes.Internal, err.Error())
}
}
if len(req) > s.opts.maxMsgSize {
// TODO: Revisit the error code. Currently keep it consistent with
// java implementation.
statusCode = codes.Internal
statusDesc = fmt.Sprintf("grpc: server received a message of %d bytes exceeding %d limit", len(req), s.opts.maxMsgSize)
return status.Errorf(codes.Internal, "grpc: server received a message of %d bytes exceeding %d limit", len(req), s.opts.maxMsgSize)
}
if err := s.opts.codec.Unmarshal(req, v); err != nil {
return err
return status.Errorf(codes.Internal, "grpc: error unmarshalling request: %v", err)
}
if inPayload != nil {
inPayload.Payload = v
inPayload.Data = req
inPayload.Length = len(req)
sh.HandleRPC(stream.Context(), inPayload)
}
if trInfo != nil {
trInfo.tr.LazyLog(&payload{sent: false, msg: v}, true)
@ -637,22 +752,20 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
}
reply, appErr := md.Handler(srv.server, stream.Context(), df, s.opts.unaryInt)
if appErr != nil {
if err, ok := appErr.(*rpcError); ok {
statusCode = err.code
statusDesc = err.desc
} else {
statusCode = convertCode(appErr)
statusDesc = appErr.Error()
appStatus, ok := status.FromError(appErr)
if !ok {
// Convert appErr if it is not a grpc status error.
appErr = status.Error(convertCode(appErr), appErr.Error())
appStatus, _ = status.FromError(appErr)
}
if trInfo != nil && statusCode != codes.OK {
trInfo.tr.LazyLog(stringer(statusDesc), true)
if trInfo != nil {
trInfo.tr.LazyLog(stringer(appStatus.Message()), true)
trInfo.tr.SetError()
}
if err := t.WriteStatus(stream, statusCode, statusDesc); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", err)
return err
if e := t.WriteStatus(stream, appStatus); e != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", e)
}
return nil
return appErr
}
if trInfo != nil {
trInfo.tr.LazyLog(stringer("OK"), false)
@ -662,38 +775,70 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
Delay: false,
}
if err := s.sendResponse(t, stream, reply, s.opts.cp, opts); err != nil {
switch err := err.(type) {
case transport.ConnectionError:
// Nothing to do here.
case transport.StreamError:
statusCode = err.Code
statusDesc = err.Desc
default:
statusCode = codes.Unknown
statusDesc = err.Error()
if err == io.EOF {
// The entire stream is done (for unary RPC only).
return err
}
if s, ok := status.FromError(err); ok {
if e := t.WriteStatus(stream, s); e != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", e)
}
} else {
switch st := err.(type) {
case transport.ConnectionError:
// Nothing to do here.
case transport.StreamError:
if e := t.WriteStatus(stream, status.New(st.Code, st.Desc)); e != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
}
default:
panic(fmt.Sprintf("grpc: Unexpected error (%T) from sendResponse: %v", st, st))
}
}
return err
}
if trInfo != nil {
trInfo.tr.LazyLog(&payload{sent: true, msg: reply}, true)
}
return t.WriteStatus(stream, statusCode, statusDesc)
// TODO: Should we be logging if writing status failed here, like above?
// Should the logging be in WriteStatus? Should we ignore the WriteStatus
// error or allow the stats handler to see it?
return t.WriteStatus(stream, status.New(codes.OK, ""))
}
}
func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transport.Stream, srv *service, sd *StreamDesc, trInfo *traceInfo) (err error) {
sh := s.opts.statsHandler
if sh != nil {
begin := &stats.Begin{
BeginTime: time.Now(),
}
sh.HandleRPC(stream.Context(), begin)
}
defer func() {
if sh != nil {
end := &stats.End{
EndTime: time.Now(),
}
if err != nil && err != io.EOF {
end.Error = toRPCErr(err)
}
sh.HandleRPC(stream.Context(), end)
}
}()
if s.opts.cp != nil {
stream.SetSendCompress(s.opts.cp.Type())
}
ss := &serverStream{
t: t,
s: stream,
p: &parser{r: stream},
codec: s.opts.codec,
cp: s.opts.cp,
dc: s.opts.dc,
maxMsgSize: s.opts.maxMsgSize,
trInfo: trInfo,
t: t,
s: stream,
p: &parser{r: stream},
codec: s.opts.codec,
cp: s.opts.cp,
dc: s.opts.dc,
maxMsgSize: s.opts.maxMsgSize,
trInfo: trInfo,
statsHandler: sh,
}
if ss.cp != nil {
ss.cbuf = new(bytes.Buffer)
@ -712,39 +857,47 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
}()
}
var appErr error
var server interface{}
if srv != nil {
server = srv.server
}
if s.opts.streamInt == nil {
appErr = sd.Handler(srv.server, ss)
appErr = sd.Handler(server, ss)
} else {
info := &StreamServerInfo{
FullMethod: stream.Method(),
IsClientStream: sd.ClientStreams,
IsServerStream: sd.ServerStreams,
}
appErr = s.opts.streamInt(srv.server, ss, info, sd.Handler)
appErr = s.opts.streamInt(server, ss, info, sd.Handler)
}
if appErr != nil {
if err, ok := appErr.(*rpcError); ok {
ss.statusCode = err.code
ss.statusDesc = err.desc
} else if err, ok := appErr.(transport.StreamError); ok {
ss.statusCode = err.Code
ss.statusDesc = err.Desc
} else {
ss.statusCode = convertCode(appErr)
ss.statusDesc = appErr.Error()
appStatus, ok := status.FromError(appErr)
if !ok {
switch err := appErr.(type) {
case transport.StreamError:
appStatus = status.New(err.Code, err.Desc)
default:
appStatus = status.New(convertCode(appErr), appErr.Error())
}
appErr = appStatus.Err()
}
if trInfo != nil {
ss.mu.Lock()
ss.trInfo.tr.LazyLog(stringer(appStatus.Message()), true)
ss.trInfo.tr.SetError()
ss.mu.Unlock()
}
t.WriteStatus(ss.s, appStatus)
// TODO: Should we log an error from WriteStatus here and below?
return appErr
}
if trInfo != nil {
ss.mu.Lock()
if ss.statusCode != codes.OK {
ss.trInfo.tr.LazyLog(stringer(ss.statusDesc), true)
ss.trInfo.tr.SetError()
} else {
ss.trInfo.tr.LazyLog(stringer("OK"), false)
}
ss.trInfo.tr.LazyLog(stringer("OK"), false)
ss.mu.Unlock()
}
return t.WriteStatus(ss.s, ss.statusCode, ss.statusDesc)
return t.WriteStatus(ss.s, status.New(codes.OK, ""))
}
@ -759,7 +912,8 @@ func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Str
trInfo.tr.LazyLog(&fmtStringer{"Malformed method name %q", []interface{}{sm}}, true)
trInfo.tr.SetError()
}
if err := t.WriteStatus(stream, codes.InvalidArgument, fmt.Sprintf("malformed method name: %q", stream.Method())); err != nil {
errDesc := fmt.Sprintf("malformed method name: %q", stream.Method())
if err := t.WriteStatus(stream, status.New(codes.InvalidArgument, errDesc)); err != nil {
if trInfo != nil {
trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
trInfo.tr.SetError()
@ -775,11 +929,16 @@ func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Str
method := sm[pos+1:]
srv, ok := s.m[service]
if !ok {
if unknownDesc := s.opts.unknownStreamDesc; unknownDesc != nil {
s.processStreamingRPC(t, stream, nil, unknownDesc, trInfo)
return
}
if trInfo != nil {
trInfo.tr.LazyLog(&fmtStringer{"Unknown service %v", []interface{}{service}}, true)
trInfo.tr.SetError()
}
if err := t.WriteStatus(stream, codes.Unimplemented, fmt.Sprintf("unknown service %v", service)); err != nil {
errDesc := fmt.Sprintf("unknown service %v", service)
if err := t.WriteStatus(stream, status.New(codes.Unimplemented, errDesc)); err != nil {
if trInfo != nil {
trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
trInfo.tr.SetError()
@ -804,7 +963,12 @@ func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Str
trInfo.tr.LazyLog(&fmtStringer{"Unknown method %v", []interface{}{method}}, true)
trInfo.tr.SetError()
}
if err := t.WriteStatus(stream, codes.Unimplemented, fmt.Sprintf("unknown method %v", method)); err != nil {
if unknownDesc := s.opts.unknownStreamDesc; unknownDesc != nil {
s.processStreamingRPC(t, stream, nil, unknownDesc, trInfo)
return
}
errDesc := fmt.Sprintf("unknown method %v", method)
if err := t.WriteStatus(stream, status.New(codes.Unimplemented, errDesc)); err != nil {
if trInfo != nil {
trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
trInfo.tr.SetError()

76
vendor/google.golang.org/grpc/stats/handlers.go generated vendored Normal file
View File

@ -0,0 +1,76 @@
/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package stats
import (
"net"
"golang.org/x/net/context"
)
// ConnTagInfo defines the relevant information needed by connection context tagger.
type ConnTagInfo struct {
// RemoteAddr is the remote address of the corresponding connection.
RemoteAddr net.Addr
// LocalAddr is the local address of the corresponding connection.
LocalAddr net.Addr
// TODO add QOS related fields.
}
// RPCTagInfo defines the relevant information needed by RPC context tagger.
type RPCTagInfo struct {
// FullMethodName is the RPC method in the format of /package.service/method.
FullMethodName string
}
// Handler defines the interface for the related stats handling (e.g., RPCs, connections).
type Handler interface {
// TagRPC can attach some information to the given context.
// The returned context is used in the rest lifetime of the RPC.
TagRPC(context.Context, *RPCTagInfo) context.Context
// HandleRPC processes the RPC stats.
HandleRPC(context.Context, RPCStats)
// TagConn can attach some information to the given context.
// The returned context will be used for stats handling.
// For conn stats handling, the context used in HandleConn for this
// connection will be derived from the context returned.
// For RPC stats handling,
// - On server side, the context used in HandleRPC for all RPCs on this
// connection will be derived from the context returned.
// - On client side, the context is not derived from the context returned.
TagConn(context.Context, *ConnTagInfo) context.Context
// HandleConn processes the Conn stats.
HandleConn(context.Context, ConnStats)
}

223
vendor/google.golang.org/grpc/stats/stats.go generated vendored Normal file
View File

@ -0,0 +1,223 @@
/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// Package stats is for collecting and reporting various network and RPC stats.
// This package is for monitoring purpose only. All fields are read-only.
// All APIs are experimental.
package stats // import "google.golang.org/grpc/stats"
import (
"net"
"time"
)
// RPCStats contains stats information about RPCs.
type RPCStats interface {
isRPCStats()
// IsClient returns true if this RPCStats is from client side.
IsClient() bool
}
// Begin contains stats when an RPC begins.
// FailFast are only valid if Client is true.
type Begin struct {
// Client is true if this Begin is from client side.
Client bool
// BeginTime is the time when the RPC begins.
BeginTime time.Time
// FailFast indicates if this RPC is failfast.
FailFast bool
}
// IsClient indicates if this is from client side.
func (s *Begin) IsClient() bool { return s.Client }
func (s *Begin) isRPCStats() {}
// InPayload contains the information for an incoming payload.
type InPayload struct {
// Client is true if this InPayload is from client side.
Client bool
// Payload is the payload with original type.
Payload interface{}
// Data is the serialized message payload.
Data []byte
// Length is the length of uncompressed data.
Length int
// WireLength is the length of data on wire (compressed, signed, encrypted).
WireLength int
// RecvTime is the time when the payload is received.
RecvTime time.Time
}
// IsClient indicates if this is from client side.
func (s *InPayload) IsClient() bool { return s.Client }
func (s *InPayload) isRPCStats() {}
// InHeader contains stats when a header is received.
// FullMethod, addresses and Compression are only valid if Client is false.
type InHeader struct {
// Client is true if this InHeader is from client side.
Client bool
// WireLength is the wire length of header.
WireLength int
// FullMethod is the full RPC method string, i.e., /package.service/method.
FullMethod string
// RemoteAddr is the remote address of the corresponding connection.
RemoteAddr net.Addr
// LocalAddr is the local address of the corresponding connection.
LocalAddr net.Addr
// Compression is the compression algorithm used for the RPC.
Compression string
}
// IsClient indicates if this is from client side.
func (s *InHeader) IsClient() bool { return s.Client }
func (s *InHeader) isRPCStats() {}
// InTrailer contains stats when a trailer is received.
type InTrailer struct {
// Client is true if this InTrailer is from client side.
Client bool
// WireLength is the wire length of trailer.
WireLength int
}
// IsClient indicates if this is from client side.
func (s *InTrailer) IsClient() bool { return s.Client }
func (s *InTrailer) isRPCStats() {}
// OutPayload contains the information for an outgoing payload.
type OutPayload struct {
// Client is true if this OutPayload is from client side.
Client bool
// Payload is the payload with original type.
Payload interface{}
// Data is the serialized message payload.
Data []byte
// Length is the length of uncompressed data.
Length int
// WireLength is the length of data on wire (compressed, signed, encrypted).
WireLength int
// SentTime is the time when the payload is sent.
SentTime time.Time
}
// IsClient indicates if this is from client side.
func (s *OutPayload) IsClient() bool { return s.Client }
func (s *OutPayload) isRPCStats() {}
// OutHeader contains stats when a header is sent.
// FullMethod, addresses and Compression are only valid if Client is true.
type OutHeader struct {
// Client is true if this OutHeader is from client side.
Client bool
// WireLength is the wire length of header.
WireLength int
// FullMethod is the full RPC method string, i.e., /package.service/method.
FullMethod string
// RemoteAddr is the remote address of the corresponding connection.
RemoteAddr net.Addr
// LocalAddr is the local address of the corresponding connection.
LocalAddr net.Addr
// Compression is the compression algorithm used for the RPC.
Compression string
}
// IsClient indicates if this is from client side.
func (s *OutHeader) IsClient() bool { return s.Client }
func (s *OutHeader) isRPCStats() {}
// OutTrailer contains stats when a trailer is sent.
type OutTrailer struct {
// Client is true if this OutTrailer is from client side.
Client bool
// WireLength is the wire length of trailer.
WireLength int
}
// IsClient indicates if this is from client side.
func (s *OutTrailer) IsClient() bool { return s.Client }
func (s *OutTrailer) isRPCStats() {}
// End contains stats when an RPC ends.
type End struct {
// Client is true if this End is from client side.
Client bool
// EndTime is the time when the RPC ends.
EndTime time.Time
// Error is the error just happened. It implements status.Status if non-nil.
Error error
}
// IsClient indicates if this is from client side.
func (s *End) IsClient() bool { return s.Client }
func (s *End) isRPCStats() {}
// ConnStats contains stats information about connections.
type ConnStats interface {
isConnStats()
// IsClient returns true if this ConnStats is from client side.
IsClient() bool
}
// ConnBegin contains the stats of a connection when it is established.
type ConnBegin struct {
// Client is true if this ConnBegin is from client side.
Client bool
}
// IsClient indicates if this is from client side.
func (s *ConnBegin) IsClient() bool { return s.Client }
func (s *ConnBegin) isConnStats() {}
// ConnEnd contains the stats of a connection when it ends.
type ConnEnd struct {
// Client is true if this ConnEnd is from client side.
Client bool
}
// IsClient indicates if this is from client side.
func (s *ConnEnd) IsClient() bool { return s.Client }
func (s *ConnEnd) isConnStats() {}

145
vendor/google.golang.org/grpc/status/status.go generated vendored Normal file
View File

@ -0,0 +1,145 @@
/*
*
* Copyright 2017, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// Package status implements errors returned by gRPC. These errors are
// serialized and transmitted on the wire between server and client, and allow
// for additional data to be transmitted via the Details field in the status
// proto. gRPC service handlers should return an error created by this
// package, and gRPC clients should expect a corresponding error to be
// returned from the RPC call.
//
// This package upholds the invariants that a non-nil error may not
// contain an OK code, and an OK code must result in a nil error.
package status
import (
"fmt"
"github.com/golang/protobuf/proto"
spb "google.golang.org/genproto/googleapis/rpc/status"
"google.golang.org/grpc/codes"
)
// statusError is an alias of a status proto. It implements error and Status,
// and a nil statusError should never be returned by this package.
type statusError spb.Status
func (se *statusError) Error() string {
p := (*spb.Status)(se)
return fmt.Sprintf("rpc error: code = %s desc = %s", codes.Code(p.GetCode()), p.GetMessage())
}
func (se *statusError) status() *Status {
return &Status{s: (*spb.Status)(se)}
}
// Status represents an RPC status code, message, and details. It is immutable
// and should be created with New, Newf, or FromProto.
type Status struct {
s *spb.Status
}
// Code returns the status code contained in s.
func (s *Status) Code() codes.Code {
if s == nil || s.s == nil {
return codes.OK
}
return codes.Code(s.s.Code)
}
// Message returns the message contained in s.
func (s *Status) Message() string {
if s == nil || s.s == nil {
return ""
}
return s.s.Message
}
// Proto returns s's status as an spb.Status proto message.
func (s *Status) Proto() *spb.Status {
if s == nil {
return nil
}
return proto.Clone(s.s).(*spb.Status)
}
// Err returns an immutable error representing s; returns nil if s.Code() is
// OK.
func (s *Status) Err() error {
if s.Code() == codes.OK {
return nil
}
return (*statusError)(s.s)
}
// New returns a Status representing c and msg.
func New(c codes.Code, msg string) *Status {
return &Status{s: &spb.Status{Code: int32(c), Message: msg}}
}
// Newf returns New(c, fmt.Sprintf(format, a...)).
func Newf(c codes.Code, format string, a ...interface{}) *Status {
return New(c, fmt.Sprintf(format, a...))
}
// Error returns an error representing c and msg. If c is OK, returns nil.
func Error(c codes.Code, msg string) error {
return New(c, msg).Err()
}
// Errorf returns Error(c, fmt.Sprintf(format, a...)).
func Errorf(c codes.Code, format string, a ...interface{}) error {
return Error(c, fmt.Sprintf(format, a...))
}
// ErrorProto returns an error representing s. If s.Code is OK, returns nil.
func ErrorProto(s *spb.Status) error {
return FromProto(s).Err()
}
// FromProto returns a Status representing s.
func FromProto(s *spb.Status) *Status {
return &Status{s: proto.Clone(s).(*spb.Status)}
}
// FromError returns a Status representing err if it was produced from this
// package, otherwise it returns nil, false.
func FromError(err error) (s *Status, ok bool) {
if err == nil {
return &Status{s: &spb.Status{Code: int32(codes.OK)}}, true
}
if s, ok := err.(*statusError); ok {
return s.status(), true
}
return nil, false
}

207
vendor/google.golang.org/grpc/stream.go generated vendored
View File

@ -37,7 +37,6 @@ import (
"bytes"
"errors"
"io"
"math"
"sync"
"time"
@ -45,6 +44,8 @@ import (
"golang.org/x/net/trace"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
"google.golang.org/grpc/transport"
)
@ -97,7 +98,7 @@ type ClientStream interface {
// NewClientStream creates a new Stream for the client side. This is called
// by generated code.
func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (ClientStream, error) {
func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (_ ClientStream, err error) {
if cc.dopts.streamInt != nil {
return cc.dopts.streamInt(ctx, desc, cc, method, newClientStream, opts...)
}
@ -106,11 +107,18 @@ func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (_ ClientStream, err error) {
var (
t transport.ClientTransport
s *transport.Stream
put func()
t transport.ClientTransport
s *transport.Stream
put func()
cancel context.CancelFunc
)
c := defaultCallInfo
if mc, ok := cc.getMethodConfig(method); ok {
c.failFast = !mc.WaitForReady
if mc.Timeout > 0 {
ctx, cancel = context.WithTimeout(ctx, mc.Timeout)
}
}
for _, o := range opts {
if err := o.before(&c); err != nil {
return nil, toRPCErr(err)
@ -143,6 +151,27 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
}
}()
}
ctx = newContextWithRPCInfo(ctx)
sh := cc.dopts.copts.StatsHandler
if sh != nil {
ctx = sh.TagRPC(ctx, &stats.RPCTagInfo{FullMethodName: method})
begin := &stats.Begin{
Client: true,
BeginTime: time.Now(),
FailFast: c.failFast,
}
sh.HandleRPC(ctx, begin)
}
defer func() {
if err != nil && sh != nil {
// Only handle end stats if err != nil.
end := &stats.End{
Client: true,
Error: err,
}
sh.HandleRPC(ctx, end)
}
}()
gopts := BalancerGetOptions{
BlockingWait: !c.failFast,
}
@ -150,7 +179,7 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
t, put, err = cc.getTransport(ctx, gopts)
if err != nil {
// TODO(zhaoq): Probably revisit the error handling.
if _, ok := err.(*rpcError); ok {
if _, ok := status.FromError(err); ok {
return nil, err
}
if err == errConnClosing || err == errConnUnavailable {
@ -165,14 +194,17 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
s, err = t.NewStream(ctx, callHdr)
if err != nil {
if _, ok := err.(transport.ConnectionError); ok && put != nil {
// If error is connection error, transport was sending data on wire,
// and we are not sure if anything has been sent on wire.
// If error is not connection error, we are sure nothing has been sent.
updateRPCInfoInContext(ctx, rpcInfo{bytesSent: true, bytesReceived: false})
}
if put != nil {
put()
put = nil
}
if _, ok := err.(transport.ConnectionError); ok || err == transport.ErrStreamDrain {
if c.failFast {
return nil, toRPCErr(err)
}
if _, ok := err.(transport.ConnectionError); (ok || err == transport.ErrStreamDrain) && !c.failFast {
continue
}
return nil, toRPCErr(err)
@ -180,12 +212,14 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
break
}
cs := &clientStream{
opts: opts,
c: c,
desc: desc,
codec: cc.dopts.codec,
cp: cc.dopts.cp,
dc: cc.dopts.dc,
opts: opts,
c: c,
desc: desc,
codec: cc.dopts.codec,
cp: cc.dopts.cp,
dc: cc.dopts.dc,
maxMsgSize: cc.dopts.maxMsgSize,
cancel: cancel,
put: put,
t: t,
@ -194,6 +228,9 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
tracing: EnableTracing,
trInfo: trInfo,
statsCtx: ctx,
statsHandler: cc.dopts.copts.StatsHandler,
}
if cc.dopts.cp != nil {
cs.cbuf = new(bytes.Buffer)
@ -204,14 +241,13 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
select {
case <-t.Error():
// Incur transport error, simply exit.
case <-cc.ctx.Done():
cs.finish(ErrClientConnClosing)
cs.closeTransportStream(ErrClientConnClosing)
case <-s.Done():
// TODO: The trace of the RPC is terminated here when there is no pending
// I/O, which is probably not the optimal solution.
if s.StatusCode() == codes.OK {
cs.finish(nil)
} else {
cs.finish(Errorf(s.StatusCode(), "%s", s.StatusDesc()))
}
cs.finish(s.Status().Err())
cs.closeTransportStream(nil)
case <-s.GoAway():
cs.finish(errConnDrain)
@ -227,25 +263,34 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
// clientStream implements a client side Stream.
type clientStream struct {
opts []CallOption
c callInfo
t transport.ClientTransport
s *transport.Stream
p *parser
desc *StreamDesc
codec Codec
cp Compressor
cbuf *bytes.Buffer
dc Decompressor
opts []CallOption
c callInfo
t transport.ClientTransport
s *transport.Stream
p *parser
desc *StreamDesc
codec Codec
cp Compressor
cbuf *bytes.Buffer
dc Decompressor
maxMsgSize int
cancel context.CancelFunc
tracing bool // set to EnableTracing when the clientStream is created.
mu sync.Mutex
put func()
closed bool
mu sync.Mutex
put func()
closed bool
finished bool
// trInfo.tr is set when the clientStream is created (if EnableTracing is true),
// and is set to nil when the clientStream's finish method is called.
trInfo traceInfo
// statsCtx keeps the user context for stats handling.
// All stats collection should use the statsCtx (instead of the stream context)
// so that all the generated stats for a particular RPC can be associated in the processing phase.
statsCtx context.Context
statsHandler stats.Handler
}
func (cs *clientStream) Context() context.Context {
@ -274,6 +319,8 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
}
cs.mu.Unlock()
}
// TODO Investigate how to signal the stats handling party.
// generate error stats if err != nil && err != io.EOF?
defer func() {
if err != nil {
cs.finish(err)
@ -296,7 +343,13 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
}
err = toRPCErr(err)
}()
out, err := encode(cs.codec, m, cs.cp, cs.cbuf)
var outPayload *stats.OutPayload
if cs.statsHandler != nil {
outPayload = &stats.OutPayload{
Client: true,
}
}
out, err := encode(cs.codec, m, cs.cp, cs.cbuf, outPayload)
defer func() {
if cs.cbuf != nil {
cs.cbuf.Reset()
@ -305,11 +358,22 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
if err != nil {
return Errorf(codes.Internal, "grpc: %v", err)
}
return cs.t.Write(cs.s, out, &transport.Options{Last: false})
err = cs.t.Write(cs.s, out, &transport.Options{Last: false})
if err == nil && outPayload != nil {
outPayload.SentTime = time.Now()
cs.statsHandler.HandleRPC(cs.statsCtx, outPayload)
}
return err
}
func (cs *clientStream) RecvMsg(m interface{}) (err error) {
err = recv(cs.p, cs.codec, cs.s, cs.dc, m, math.MaxInt32)
var inPayload *stats.InPayload
if cs.statsHandler != nil {
inPayload = &stats.InPayload{
Client: true,
}
}
err = recv(cs.p, cs.codec, cs.s, cs.dc, m, cs.maxMsgSize, inPayload)
defer func() {
// err != nil indicates the termination of the stream.
if err != nil {
@ -324,21 +388,25 @@ func (cs *clientStream) RecvMsg(m interface{}) (err error) {
}
cs.mu.Unlock()
}
if inPayload != nil {
cs.statsHandler.HandleRPC(cs.statsCtx, inPayload)
}
if !cs.desc.ClientStreams || cs.desc.ServerStreams {
return
}
// Special handling for client streaming rpc.
err = recv(cs.p, cs.codec, cs.s, cs.dc, m, math.MaxInt32)
// This recv expects EOF or errors, so we don't collect inPayload.
err = recv(cs.p, cs.codec, cs.s, cs.dc, m, cs.maxMsgSize, nil)
cs.closeTransportStream(err)
if err == nil {
return toRPCErr(errors.New("grpc: client streaming protocol violation: get <nil>, want <EOF>"))
}
if err == io.EOF {
if cs.s.StatusCode() == codes.OK {
cs.finish(err)
return nil
if se := cs.s.Status().Err(); se != nil {
return se
}
return Errorf(cs.s.StatusCode(), "%s", cs.s.StatusDesc())
cs.finish(err)
return nil
}
return toRPCErr(err)
}
@ -346,11 +414,11 @@ func (cs *clientStream) RecvMsg(m interface{}) (err error) {
cs.closeTransportStream(err)
}
if err == io.EOF {
if cs.s.StatusCode() == codes.OK {
// Returns io.EOF to indicate the end of the stream.
return
if statusErr := cs.s.Status().Err(); statusErr != nil {
return statusErr
}
return Errorf(cs.s.StatusCode(), "%s", cs.s.StatusDesc())
// Returns io.EOF to indicate the end of the stream.
return
}
return toRPCErr(err)
}
@ -386,13 +454,37 @@ func (cs *clientStream) closeTransportStream(err error) {
func (cs *clientStream) finish(err error) {
cs.mu.Lock()
defer cs.mu.Unlock()
if cs.finished {
return
}
cs.finished = true
defer func() {
if cs.cancel != nil {
cs.cancel()
}
}()
for _, o := range cs.opts {
o.after(&cs.c)
}
if cs.put != nil {
updateRPCInfoInContext(cs.s.Context(), rpcInfo{
bytesSent: cs.s.BytesSent(),
bytesReceived: cs.s.BytesReceived(),
})
cs.put()
cs.put = nil
}
if cs.statsHandler != nil {
end := &stats.End{
Client: true,
EndTime: time.Now(),
}
if err != io.EOF {
// end.Error is nil if the RPC finished successfully.
end.Error = toRPCErr(err)
}
cs.statsHandler.HandleRPC(cs.statsCtx, end)
}
if !cs.tracing {
return
}
@ -437,10 +529,10 @@ type serverStream struct {
dc Decompressor
cbuf *bytes.Buffer
maxMsgSize int
statusCode codes.Code
statusDesc string
trInfo *traceInfo
statsHandler stats.Handler
mu sync.Mutex // protects trInfo.tr after the service handler runs.
}
@ -482,7 +574,11 @@ func (ss *serverStream) SendMsg(m interface{}) (err error) {
ss.mu.Unlock()
}
}()
out, err := encode(ss.codec, m, ss.cp, ss.cbuf)
var outPayload *stats.OutPayload
if ss.statsHandler != nil {
outPayload = &stats.OutPayload{}
}
out, err := encode(ss.codec, m, ss.cp, ss.cbuf, outPayload)
defer func() {
if ss.cbuf != nil {
ss.cbuf.Reset()
@ -495,6 +591,10 @@ func (ss *serverStream) SendMsg(m interface{}) (err error) {
if err := ss.t.Write(ss.s, out, &transport.Options{Last: false}); err != nil {
return toRPCErr(err)
}
if outPayload != nil {
outPayload.SentTime = time.Now()
ss.statsHandler.HandleRPC(ss.s.Context(), outPayload)
}
return nil
}
@ -513,7 +613,11 @@ func (ss *serverStream) RecvMsg(m interface{}) (err error) {
ss.mu.Unlock()
}
}()
if err := recv(ss.p, ss.codec, ss.s, ss.dc, m, ss.maxMsgSize); err != nil {
var inPayload *stats.InPayload
if ss.statsHandler != nil {
inPayload = &stats.InPayload{}
}
if err := recv(ss.p, ss.codec, ss.s, ss.dc, m, ss.maxMsgSize, inPayload); err != nil {
if err == io.EOF {
return err
}
@ -522,5 +626,8 @@ func (ss *serverStream) RecvMsg(m interface{}) (err error) {
}
return toRPCErr(err)
}
if inPayload != nil {
ss.statsHandler.HandleRPC(ss.s.Context(), inPayload)
}
return nil
}

54
vendor/google.golang.org/grpc/tap/tap.go generated vendored Normal file
View File

@ -0,0 +1,54 @@
/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// Package tap defines the function handles which are executed on the transport
// layer of gRPC-Go and related information. Everything here is EXPERIMENTAL.
package tap
import (
"golang.org/x/net/context"
)
// Info defines the relevant information needed by the handles.
type Info struct {
// FullMethodName is the string of grpc method (in the format of
// /package.service/method).
FullMethodName string
// TODO: More to be added.
}
// ServerInHandle defines the function which runs when a new stream is created
// on the server side. Note that it is executed in the per-connection I/O goroutine(s) instead
// of per-RPC goroutine. Therefore, users should NOT have any blocking/time-consuming
// work in this handle. Otherwise all the RPCs would slow down.
type ServerInHandle func(ctx context.Context, info *Info) (context.Context, error)

52
vendor/google.golang.org/grpc/transport/control.go generated vendored
View File

@ -35,7 +35,9 @@ package transport
import (
"fmt"
"math"
"sync"
"time"
"golang.org/x/net/http2"
)
@ -44,8 +46,18 @@ const (
// The default value of flow control window size in HTTP2 spec.
defaultWindowSize = 65535
// The initial window size for flow control.
initialWindowSize = defaultWindowSize // for an RPC
initialConnWindowSize = defaultWindowSize * 16 // for a connection
initialWindowSize = defaultWindowSize // for an RPC
initialConnWindowSize = defaultWindowSize * 16 // for a connection
infinity = time.Duration(math.MaxInt64)
defaultClientKeepaliveTime = infinity
defaultClientKeepaliveTimeout = time.Duration(20 * time.Second)
defaultMaxStreamsClient = 100
defaultMaxConnectionIdle = infinity
defaultMaxConnectionAge = infinity
defaultMaxConnectionAgeGrace = infinity
defaultServerKeepaliveTime = time.Duration(2 * time.Hour)
defaultServerKeepaliveTimeout = time.Duration(20 * time.Second)
defaultKeepalivePolicyMinTime = time.Duration(5 * time.Minute)
)
// The following defines various control items which could flow through
@ -73,6 +85,8 @@ type resetStream struct {
func (*resetStream) item() {}
type goAway struct {
code http2.ErrCode
debugData []byte
}
func (*goAway) item() {}
@ -111,35 +125,9 @@ func newQuotaPool(q int) *quotaPool {
return qb
}
// add adds n to the available quota and tries to send it on acquire.
func (qb *quotaPool) add(n int) {
qb.mu.Lock()
defer qb.mu.Unlock()
qb.quota += n
if qb.quota <= 0 {
return
}
select {
case qb.c <- qb.quota:
qb.quota = 0
default:
}
}
// cancel cancels the pending quota sent on acquire, if any.
func (qb *quotaPool) cancel() {
qb.mu.Lock()
defer qb.mu.Unlock()
select {
case n := <-qb.c:
qb.quota += n
default:
}
}
// reset cancels the pending quota sent on acquired, incremented by v and sends
// add cancels the pending quota sent on acquired, incremented by v and sends
// it back on acquire.
func (qb *quotaPool) reset(v int) {
func (qb *quotaPool) add(v int) {
qb.mu.Lock()
defer qb.mu.Unlock()
select {
@ -151,6 +139,10 @@ func (qb *quotaPool) reset(v int) {
if qb.quota <= 0 {
return
}
// After the pool has been created, this is the only place that sends on
// the channel. Since mu is held at this point and any quota that was sent
// on the channel has been retrieved, we know that this code will always
// place any positive quota value on the channel.
select {
case qb.c <- qb.quota:
qb.quota = 0

29
vendor/google.golang.org/grpc/transport/handler_server.go generated vendored
View File

@ -53,6 +53,7 @@ import (
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/status"
)
// NewServerHandlerTransport returns a ServerTransport handling gRPC
@ -110,6 +111,10 @@ func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request) (ServerTr
v = v[:i]
}
}
v, err := decodeMetadataHeader(k, v)
if err != nil {
return nil, streamErrorf(codes.InvalidArgument, "malformed binary metadata: %v", err)
}
metakv = append(metakv, k, v)
}
}
@ -182,7 +187,7 @@ func (ht *serverHandlerTransport) do(fn func()) error {
}
}
func (ht *serverHandlerTransport) WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error {
func (ht *serverHandlerTransport) WriteStatus(s *Stream, st *status.Status) error {
err := ht.do(func() {
ht.writeCommonHeaders(s)
@ -192,10 +197,13 @@ func (ht *serverHandlerTransport) WriteStatus(s *Stream, statusCode codes.Code,
ht.rw.(http.Flusher).Flush()
h := ht.rw.Header()
h.Set("Grpc-Status", fmt.Sprintf("%d", statusCode))
if statusDesc != "" {
h.Set("Grpc-Message", encodeGrpcMessage(statusDesc))
h.Set("Grpc-Status", fmt.Sprintf("%d", st.Code()))
if m := st.Message(); m != "" {
h.Set("Grpc-Message", encodeGrpcMessage(m))
}
// TODO: Support Grpc-Status-Details-Bin
if md := s.Trailer(); len(md) > 0 {
for k, vv := range md {
// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
@ -203,10 +211,9 @@ func (ht *serverHandlerTransport) WriteStatus(s *Stream, statusCode codes.Code,
continue
}
for _, v := range vv {
// http2 ResponseWriter mechanism to
// send undeclared Trailers after the
// headers have possibly been written.
h.Add(http2.TrailerPrefix+k, v)
// http2 ResponseWriter mechanism to send undeclared Trailers after
// the headers have possibly been written.
h.Add(http2.TrailerPrefix+k, encodeMetadataHeader(k, v))
}
}
}
@ -234,6 +241,7 @@ func (ht *serverHandlerTransport) writeCommonHeaders(s *Stream) {
// and https://golang.org/pkg/net/http/#example_ResponseWriter_trailers
h.Add("Trailer", "Grpc-Status")
h.Add("Trailer", "Grpc-Message")
// TODO: Support Grpc-Status-Details-Bin
if s.sendCompress != "" {
h.Set("Grpc-Encoding", s.sendCompress)
@ -260,6 +268,7 @@ func (ht *serverHandlerTransport) WriteHeader(s *Stream, md metadata.MD) error {
continue
}
for _, v := range vv {
v = encodeMetadataHeader(k, v)
h.Add(k, v)
}
}
@ -268,7 +277,7 @@ func (ht *serverHandlerTransport) WriteHeader(s *Stream, md metadata.MD) error {
})
}
func (ht *serverHandlerTransport) HandleStreams(startStream func(*Stream)) {
func (ht *serverHandlerTransport) HandleStreams(startStream func(*Stream), traceCtx func(context.Context, string) context.Context) {
// With this transport type there will be exactly 1 stream: this HTTP request.
var ctx context.Context
@ -314,7 +323,7 @@ func (ht *serverHandlerTransport) HandleStreams(startStream func(*Stream)) {
if req.TLS != nil {
pr.AuthInfo = credentials.TLSInfo{State: *req.TLS}
}
ctx = metadata.NewContext(ctx, ht.headerMD)
ctx = metadata.NewIncomingContext(ctx, ht.headerMD)
ctx = peer.NewContext(ctx, pr)
s.ctx = newContextWithStream(ctx, s)
s.dec = &recvBufferReader{ctx: s.ctx, recv: s.buf}

382
vendor/google.golang.org/grpc/transport/http2_client.go generated vendored
View File

@ -35,12 +35,12 @@ package transport
import (
"bytes"
"fmt"
"io"
"math"
"net"
"strings"
"sync"
"sync/atomic"
"time"
"golang.org/x/net/context"
@ -49,18 +49,24 @@ import (
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
)
// http2Client implements the ClientTransport interface with HTTP2.
type http2Client struct {
target string // server name/addr
userAgent string
md interface{}
conn net.Conn // underlying communication channel
authInfo credentials.AuthInfo // auth info about the connection
nextID uint32 // the next stream ID to be used
ctx context.Context
target string // server name/addr
userAgent string
md interface{}
conn net.Conn // underlying communication channel
remoteAddr net.Addr
localAddr net.Addr
authInfo credentials.AuthInfo // auth info about the connection
nextID uint32 // the next stream ID to be used
// writableChan synchronizes write access to the transport.
// A writer acquires the write lock by sending a value on writableChan
@ -76,6 +82,8 @@ type http2Client struct {
// goAway is closed to notify the upper layer (i.e., addrConn.transportMonitor)
// that the server sent GoAway on this transport.
goAway chan struct{}
// awakenKeepalive is used to wake up keepalive when after it has gone dormant.
awakenKeepalive chan struct{}
framer *framer
hBuf *bytes.Buffer // the buffer for HPACK encoding
@ -95,6 +103,13 @@ type http2Client struct {
creds []credentials.PerRPCCredentials
// Boolean to keep track of reading activity on transport.
// 1 is true and 0 is false.
activity uint32 // Accessed atomically.
kp keepalive.ClientParameters
statsHandler stats.Handler
mu sync.Mutex // guard the following variables
state transportState // the state of underlying connection
activeStreams map[uint32]*Stream
@ -106,6 +121,9 @@ type http2Client struct {
goAwayID uint32
// prevGoAway ID records the Last-Stream-ID in the previous GOAway frame.
prevGoAwayID uint32
// goAwayReason records the http2.ErrCode and debug data received with the
// GoAway frame.
goAwayReason GoAwayReason
}
func dial(ctx context.Context, fn func(context.Context, string) (net.Conn, error), addr string) (net.Conn, error) {
@ -150,6 +168,9 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
scheme := "http"
conn, err := dial(ctx, opts.Dialer, addr.Addr)
if err != nil {
if opts.FailOnNonTempDialError {
return nil, connectionErrorf(isTemporary(err), err, "transport: %v", err)
}
return nil, connectionErrorf(true, err, "transport: %v", err)
}
// Any further errors will close the underlying connection
@ -169,23 +190,31 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
return nil, connectionErrorf(temp, err, "transport: %v", err)
}
}
ua := primaryUA
if opts.UserAgent != "" {
ua = opts.UserAgent + " " + ua
kp := opts.KeepaliveParams
// Validate keepalive parameters.
if kp.Time == 0 {
kp.Time = defaultClientKeepaliveTime
}
if kp.Timeout == 0 {
kp.Timeout = defaultClientKeepaliveTimeout
}
var buf bytes.Buffer
t := &http2Client{
target: addr.Addr,
userAgent: ua,
md: addr.Metadata,
conn: conn,
authInfo: authInfo,
ctx: ctx,
target: addr.Addr,
userAgent: opts.UserAgent,
md: addr.Metadata,
conn: conn,
remoteAddr: conn.RemoteAddr(),
localAddr: conn.LocalAddr(),
authInfo: authInfo,
// The client initiated stream id is odd starting from 1.
nextID: 1,
writableChan: make(chan int, 1),
shutdownChan: make(chan struct{}),
errorChan: make(chan struct{}),
goAway: make(chan struct{}),
awakenKeepalive: make(chan struct{}, 1),
framer: newFramer(conn),
hBuf: &buf,
hEnc: hpack.NewEncoder(&buf),
@ -196,8 +225,24 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
state: reachable,
activeStreams: make(map[uint32]*Stream),
creds: opts.PerRPCCredentials,
maxStreams: math.MaxInt32,
maxStreams: defaultMaxStreamsClient,
streamsQuota: newQuotaPool(defaultMaxStreamsClient),
streamSendQuota: defaultWindowSize,
kp: kp,
statsHandler: opts.StatsHandler,
}
// Make sure awakenKeepalive can't be written upon.
// keepalive routine will make it writable, if need be.
t.awakenKeepalive <- struct{}{}
if t.statsHandler != nil {
t.ctx = t.statsHandler.TagConn(t.ctx, &stats.ConnTagInfo{
RemoteAddr: t.remoteAddr,
LocalAddr: t.localAddr,
})
connBegin := &stats.ConnBegin{
Client: true,
}
t.statsHandler.HandleConn(t.ctx, connBegin)
}
// Start the reader goroutine for incoming message. Each transport has
// a dedicated goroutine which reads HTTP2 frame from network. Then it
@ -233,6 +278,9 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
}
}
go t.controller()
if t.kp.Time != infinity {
go t.keepalive()
}
t.writableChan <- 0
return t, nil
}
@ -266,16 +314,17 @@ func (t *http2Client) newStream(ctx context.Context, callHdr *CallHdr) *Stream {
return s
}
// NewStream creates a stream and register it into the transport as "active"
// NewStream creates a stream and registers it into the transport as "active"
// streams.
func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Stream, err error) {
pr := &peer.Peer{
Addr: t.conn.RemoteAddr(),
Addr: t.remoteAddr,
}
// Attach Auth info if there is any.
if t.authInfo != nil {
pr.AuthInfo = t.authInfo
}
userCtx := ctx
ctx = peer.NewContext(ctx, pr)
authData := make(map[string]string)
for _, c := range t.creds {
@ -313,21 +362,18 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
t.mu.Unlock()
return nil, ErrConnClosing
}
checkStreamsQuota := t.streamsQuota != nil
t.mu.Unlock()
if checkStreamsQuota {
sq, err := wait(ctx, nil, nil, t.shutdownChan, t.streamsQuota.acquire())
if err != nil {
return nil, err
}
// Returns the quota balance back.
if sq > 1 {
t.streamsQuota.add(sq - 1)
}
sq, err := wait(ctx, nil, nil, t.shutdownChan, t.streamsQuota.acquire())
if err != nil {
return nil, err
}
// Returns the quota balance back.
if sq > 1 {
t.streamsQuota.add(sq - 1)
}
if _, err := wait(ctx, nil, nil, t.shutdownChan, t.writableChan); err != nil {
// Return the quota back now because there is no stream returned to the caller.
if _, ok := err.(StreamError); ok && checkStreamsQuota {
if _, ok := err.(StreamError); ok {
t.streamsQuota.add(1)
}
return nil, err
@ -335,9 +381,7 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
t.mu.Lock()
if t.state == draining {
t.mu.Unlock()
if checkStreamsQuota {
t.streamsQuota.add(1)
}
t.streamsQuota.add(1)
// Need to make t writable again so that the rpc in flight can still proceed.
t.writableChan <- 0
return nil, ErrStreamDrain
@ -347,18 +391,19 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
return nil, ErrConnClosing
}
s := t.newStream(ctx, callHdr)
s.clientStatsCtx = userCtx
t.activeStreams[s.id] = s
// If the number of active streams change from 0 to 1, then check if keepalive
// has gone dormant. If so, wake it up.
if len(t.activeStreams) == 1 {
select {
case t.awakenKeepalive <- struct{}{}:
t.framer.writePing(false, false, [8]byte{})
default:
}
}
// This stream is not counted when applySetings(...) initialize t.streamsQuota.
// Reset t.streamsQuota to the right value.
var reset bool
if !checkStreamsQuota && t.streamsQuota != nil {
reset = true
}
t.mu.Unlock()
if reset {
t.streamsQuota.reset(-1)
}
// HPACK encodes various headers. Note that once WriteField(...) is
// called, the corresponding headers/continuation frame has to be sent
@ -390,29 +435,30 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
hasMD bool
endHeaders bool
)
if md, ok := metadata.FromContext(ctx); ok {
if md, ok := metadata.FromOutgoingContext(ctx); ok {
hasMD = true
for k, v := range md {
for k, vv := range md {
// HTTP doesn't allow you to set pseudoheaders after non pseudoheaders were set.
if isReservedHeader(k) {
continue
}
for _, entry := range v {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
for _, v := range vv {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
}
}
}
if md, ok := t.md.(*metadata.MD); ok {
for k, v := range *md {
for k, vv := range *md {
if isReservedHeader(k) {
continue
}
for _, entry := range v {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
for _, v := range vv {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
}
}
}
first := true
bufLen := t.hBuf.Len()
// Sends the headers in a single batch even when they span multiple frames.
for !endHeaders {
size := t.hBuf.Len()
@ -447,6 +493,19 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
return nil, connectionErrorf(true, err, "transport: %v", err)
}
}
s.bytesSent = true
if t.statsHandler != nil {
outHeader := &stats.OutHeader{
Client: true,
WireLength: bufLen,
FullMethod: callHdr.Method,
RemoteAddr: t.remoteAddr,
LocalAddr: t.localAddr,
Compression: callHdr.SendCompress,
}
t.statsHandler.HandleRPC(s.clientStatsCtx, outHeader)
}
t.writableChan <- 0
return s, nil
}
@ -454,15 +513,11 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
// CloseStream clears the footprint of a stream when the stream is not needed any more.
// This must not be executed in reader's goroutine.
func (t *http2Client) CloseStream(s *Stream, err error) {
var updateStreams bool
t.mu.Lock()
if t.activeStreams == nil {
t.mu.Unlock()
return
}
if t.streamsQuota != nil {
updateStreams = true
}
delete(t.activeStreams, s.id)
if t.state == draining && len(t.activeStreams) == 0 {
// The transport is draining and s is the last live stream on t.
@ -471,10 +526,27 @@ func (t *http2Client) CloseStream(s *Stream, err error) {
return
}
t.mu.Unlock()
if updateStreams {
t.streamsQuota.add(1)
}
// rstStream is true in case the stream is being closed at the client-side
// and the server needs to be intimated about it by sending a RST_STREAM
// frame.
// To make sure this frame is written to the wire before the headers of the
// next stream waiting for streamsQuota, we add to streamsQuota pool only
// after having acquired the writableChan to send RST_STREAM out (look at
// the controller() routine).
var rstStream bool
var rstError http2.ErrCode
defer func() {
// In case, the client doesn't have to send RST_STREAM to server
// we can safely add back to streamsQuota pool now.
if !rstStream {
t.streamsQuota.add(1)
return
}
t.controlBuf.put(&resetStream{s.id, rstError})
}()
s.mu.Lock()
rstStream = s.rstStream
rstError = s.rstError
if q := s.fc.resetPendingData(); q > 0 {
if n := t.fc.onRead(q); n > 0 {
t.controlBuf.put(&windowUpdate{0, n})
@ -490,8 +562,9 @@ func (t *http2Client) CloseStream(s *Stream, err error) {
}
s.state = streamDone
s.mu.Unlock()
if se, ok := err.(StreamError); ok && se.Code != codes.DeadlineExceeded {
t.controlBuf.put(&resetStream{s.id, http2.ErrCodeCancel})
if _, ok := err.(StreamError); ok {
rstStream = true
rstError = http2.ErrCodeCancel
}
}
@ -525,6 +598,12 @@ func (t *http2Client) Close() (err error) {
s.mu.Unlock()
s.write(recvMsg{err: ErrConnClosing})
}
if t.statsHandler != nil {
connEnd := &stats.ConnEnd{
Client: true,
}
t.statsHandler.HandleConn(t.ctx, connEnd)
}
return
}
@ -582,19 +661,14 @@ func (t *http2Client) Write(s *Stream, data []byte, opts *Options) error {
var p []byte
if r.Len() > 0 {
size := http2MaxFrameLen
s.sendQuotaPool.add(0)
// Wait until the stream has some quota to send the data.
sq, err := wait(s.ctx, s.done, s.goAway, t.shutdownChan, s.sendQuotaPool.acquire())
if err != nil {
return err
}
t.sendQuotaPool.add(0)
// Wait until the transport has some quota to send the data.
tq, err := wait(s.ctx, s.done, s.goAway, t.shutdownChan, t.sendQuotaPool.acquire())
if err != nil {
if _, ok := err.(StreamError); ok || err == io.EOF {
t.sendQuotaPool.cancel()
}
return err
}
if sq < size {
@ -704,7 +778,7 @@ func (t *http2Client) updateWindow(s *Stream, n uint32) {
}
func (t *http2Client) handleData(f *http2.DataFrame) {
size := len(f.Data())
size := f.Header().Length
if err := t.fc.onData(uint32(size)); err != nil {
t.notifyError(connectionErrorf(true, err, "%v", err))
return
@ -718,6 +792,11 @@ func (t *http2Client) handleData(f *http2.DataFrame) {
return
}
if size > 0 {
if f.Header().Flags.Has(http2.FlagDataPadded) {
if w := t.fc.onRead(uint32(size) - uint32(len(f.Data()))); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
}
s.mu.Lock()
if s.state == streamDone {
s.mu.Unlock()
@ -728,22 +807,27 @@ func (t *http2Client) handleData(f *http2.DataFrame) {
return
}
if err := s.fc.onData(uint32(size)); err != nil {
s.state = streamDone
s.statusCode = codes.Internal
s.statusDesc = err.Error()
close(s.done)
s.rstStream = true
s.rstError = http2.ErrCodeFlowControl
s.finish(status.New(codes.Internal, err.Error()))
s.mu.Unlock()
s.write(recvMsg{err: io.EOF})
t.controlBuf.put(&resetStream{s.id, http2.ErrCodeFlowControl})
return
}
if f.Header().Flags.Has(http2.FlagDataPadded) {
if w := s.fc.onRead(uint32(size) - uint32(len(f.Data()))); w > 0 {
t.controlBuf.put(&windowUpdate{s.id, w})
}
}
s.mu.Unlock()
// TODO(bradfitz, zhaoq): A copy is required here because there is no
// guarantee f.Data() is consumed before the arrival of next frame.
// Can this copy be eliminated?
data := make([]byte, size)
copy(data, f.Data())
s.write(recvMsg{data: data})
if len(f.Data()) > 0 {
data := make([]byte, len(f.Data()))
copy(data, f.Data())
s.write(recvMsg{data: data})
}
}
// The server has closed the stream without sending trailers. Record that
// the read direction is closed, and set the status appropriately.
@ -753,10 +837,7 @@ func (t *http2Client) handleData(f *http2.DataFrame) {
s.mu.Unlock()
return
}
s.state = streamDone
s.statusCode = codes.Internal
s.statusDesc = "server closed the stream without sending trailers"
close(s.done)
s.finish(status.New(codes.Internal, "server closed the stream without sending trailers"))
s.mu.Unlock()
s.write(recvMsg{err: io.EOF})
}
@ -772,18 +853,16 @@ func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
s.mu.Unlock()
return
}
s.state = streamDone
if !s.headerDone {
close(s.headerChan)
s.headerDone = true
}
s.statusCode, ok = http2ErrConvTab[http2.ErrCode(f.ErrCode)]
statusCode, ok := http2ErrConvTab[http2.ErrCode(f.ErrCode)]
if !ok {
grpclog.Println("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error ", f.ErrCode)
s.statusCode = codes.Unknown
statusCode = codes.Unknown
}
s.statusDesc = fmt.Sprintf("stream terminated by RST_STREAM with error code: %d", f.ErrCode)
close(s.done)
s.finish(status.Newf(statusCode, "stream terminated by RST_STREAM with error code: %d", f.ErrCode))
s.mu.Unlock()
s.write(recvMsg{err: io.EOF})
}
@ -811,6 +890,9 @@ func (t *http2Client) handlePing(f *http2.PingFrame) {
}
func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
if f.ErrCode == http2.ErrCodeEnhanceYourCalm {
grpclog.Printf("Client received GoAway with http2.ErrCodeEnhanceYourCalm.")
}
t.mu.Lock()
if t.state == reachable || t.state == draining {
if f.LastStreamID > 0 && f.LastStreamID%2 != 1 {
@ -832,6 +914,7 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
t.mu.Unlock()
return
default:
t.setGoAwayReason(f)
}
t.goAwayID = f.LastStreamID
close(t.goAway)
@ -839,6 +922,26 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
t.mu.Unlock()
}
// setGoAwayReason sets the value of t.goAwayReason based
// on the GoAway frame received.
// It expects a lock on transport's mutext to be held by
// the caller.
func (t *http2Client) setGoAwayReason(f *http2.GoAwayFrame) {
t.goAwayReason = NoReason
switch f.ErrCode {
case http2.ErrCodeEnhanceYourCalm:
if string(f.DebugData()) == "too_many_pings" {
t.goAwayReason = TooManyPings
}
}
}
func (t *http2Client) GetGoAwayReason() GoAwayReason {
t.mu.Lock()
defer t.mu.Unlock()
return t.goAwayReason
}
func (t *http2Client) handleWindowUpdate(f *http2.WindowUpdateFrame) {
id := f.Header().StreamID
incr := f.Increment
@ -857,23 +960,41 @@ func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
if !ok {
return
}
s.bytesReceived = true
var state decodeState
for _, hf := range frame.Fields {
state.processHeaderField(hf)
}
if state.err != nil {
s.mu.Lock()
if !s.headerDone {
close(s.headerChan)
s.headerDone = true
if err := state.processHeaderField(hf); err != nil {
s.mu.Lock()
if !s.headerDone {
close(s.headerChan)
s.headerDone = true
}
s.mu.Unlock()
s.write(recvMsg{err: err})
// Something wrong. Stops reading even when there is remaining.
return
}
s.mu.Unlock()
s.write(recvMsg{err: state.err})
// Something wrong. Stops reading even when there is remaining.
return
}
endStream := frame.StreamEnded()
var isHeader bool
defer func() {
if t.statsHandler != nil {
if isHeader {
inHeader := &stats.InHeader{
Client: true,
WireLength: int(frame.Header().Length),
}
t.statsHandler.HandleRPC(s.clientStatsCtx, inHeader)
} else {
inTrailer := &stats.InTrailer{
Client: true,
WireLength: int(frame.Header().Length),
}
t.statsHandler.HandleRPC(s.clientStatsCtx, inTrailer)
}
}
}()
s.mu.Lock()
if !endStream {
@ -885,6 +1006,7 @@ func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
}
close(s.headerChan)
s.headerDone = true
isHeader = true
}
if !endStream || s.state == streamDone {
s.mu.Unlock()
@ -894,10 +1016,7 @@ func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
if len(state.mdata) > 0 {
s.trailer = state.mdata
}
s.statusCode = state.statusCode
s.statusDesc = state.statusDesc
close(s.done)
s.state = streamDone
s.finish(state.status())
s.mu.Unlock()
s.write(recvMsg{err: io.EOF})
}
@ -925,6 +1044,7 @@ func (t *http2Client) reader() {
t.notifyError(err)
return
}
atomic.CompareAndSwapUint32(&t.activity, 0, 1)
sf, ok := frame.(*http2.SettingsFrame)
if !ok {
t.notifyError(err)
@ -935,6 +1055,7 @@ func (t *http2Client) reader() {
// loop to keep reading incoming messages on this transport.
for {
frame, err := t.framer.readFrame()
atomic.CompareAndSwapUint32(&t.activity, 0, 1)
if err != nil {
// Abort an active stream if the http2.Framer returns a
// http2.StreamError. This can happen only if the server's response
@ -986,21 +1107,15 @@ func (t *http2Client) applySettings(ss []http2.Setting) {
s.Val = math.MaxInt32
}
t.mu.Lock()
reset := t.streamsQuota != nil
if !reset {
t.streamsQuota = newQuotaPool(int(s.Val) - len(t.activeStreams))
}
ms := t.maxStreams
t.maxStreams = int(s.Val)
t.mu.Unlock()
if reset {
t.streamsQuota.reset(int(s.Val) - ms)
}
t.streamsQuota.add(int(s.Val) - ms)
case http2.SettingInitialWindowSize:
t.mu.Lock()
for _, stream := range t.activeStreams {
// Adjust the sending quota for each stream.
stream.sendQuotaPool.reset(int(s.Val - t.streamSendQuota))
stream.sendQuotaPool.add(int(s.Val - t.streamSendQuota))
}
t.streamSendQuota = s.Val
t.mu.Unlock()
@ -1028,6 +1143,12 @@ func (t *http2Client) controller() {
t.framer.writeSettings(true, i.ss...)
}
case *resetStream:
// If the server needs to be to intimated about stream closing,
// then we need to make sure the RST_STREAM frame is written to
// the wire before the headers of the next stream waiting on
// streamQuota. We ensure this by adding to the streamsQuota pool
// only after having acquired the writableChan to send RST_STREAM.
t.streamsQuota.add(1)
t.framer.writeRSTStream(true, i.streamID, i.code)
case *flushIO:
t.framer.flushWrite()
@ -1047,6 +1168,61 @@ func (t *http2Client) controller() {
}
}
// keepalive running in a separate goroutune makes sure the connection is alive by sending pings.
func (t *http2Client) keepalive() {
p := &ping{data: [8]byte{}}
timer := time.NewTimer(t.kp.Time)
for {
select {
case <-timer.C:
if atomic.CompareAndSwapUint32(&t.activity, 1, 0) {
timer.Reset(t.kp.Time)
continue
}
// Check if keepalive should go dormant.
t.mu.Lock()
if len(t.activeStreams) < 1 && !t.kp.PermitWithoutStream {
// Make awakenKeepalive writable.
<-t.awakenKeepalive
t.mu.Unlock()
select {
case <-t.awakenKeepalive:
// If the control gets here a ping has been sent
// need to reset the timer with keepalive.Timeout.
case <-t.shutdownChan:
return
}
} else {
t.mu.Unlock()
// Send ping.
t.controlBuf.put(p)
}
// By the time control gets here a ping has been sent one way or the other.
timer.Reset(t.kp.Timeout)
select {
case <-timer.C:
if atomic.CompareAndSwapUint32(&t.activity, 1, 0) {
timer.Reset(t.kp.Time)
continue
}
t.Close()
return
case <-t.shutdownChan:
if !timer.Stop() {
<-timer.C
}
return
}
case <-t.shutdownChan:
if !timer.Stop() {
<-timer.C
}
return
}
}
}
func (t *http2Client) Error() <-chan struct{} {
return t.errorChan
}

371
vendor/google.golang.org/grpc/transport/http2_server.go generated vendored
View File

@ -38,18 +38,26 @@ import (
"errors"
"io"
"math"
"math/rand"
"net"
"strconv"
"sync"
"sync/atomic"
"time"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
"golang.org/x/net/http2"
"golang.org/x/net/http2/hpack"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
"google.golang.org/grpc/tap"
)
// ErrIllegalHeaderWrite indicates that setting header is illegal because of
@ -58,9 +66,13 @@ var ErrIllegalHeaderWrite = errors.New("transport: the stream is done or WriteHe
// http2Server implements the ServerTransport interface with HTTP2.
type http2Server struct {
ctx context.Context
conn net.Conn
remoteAddr net.Addr
localAddr net.Addr
maxStreamID uint32 // max stream ID ever seen
authInfo credentials.AuthInfo // auth info about the connection
inTapHandle tap.ServerInHandle
// writableChan synchronizes write access to the transport.
// A writer acquires the write lock by receiving a value on writableChan
// and releases it by sending on writableChan.
@ -82,21 +94,46 @@ type http2Server struct {
// sendQuotaPool provides flow control to outbound message.
sendQuotaPool *quotaPool
stats stats.Handler
// Flag to keep track of reading activity on transport.
// 1 is true and 0 is false.
activity uint32 // Accessed atomically.
// Keepalive and max-age parameters for the server.
kp keepalive.ServerParameters
// Keepalive enforcement policy.
kep keepalive.EnforcementPolicy
// The time instance last ping was received.
lastPingAt time.Time
// Number of times the client has violated keepalive ping policy so far.
pingStrikes uint8
// Flag to signify that number of ping strikes should be reset to 0.
// This is set whenever data or header frames are sent.
// 1 means yes.
resetPingStrikes uint32 // Accessed atomically.
mu sync.Mutex // guard the following
state transportState
activeStreams map[uint32]*Stream
// the per-stream outbound flow control window size set by the peer.
streamSendQuota uint32
// idle is the time instant when the connection went idle.
// This is either the begining of the connection or when the number of
// RPCs go down to 0.
// When the connection is busy, this value is set to 0.
idle time.Time
}
// newHTTP2Server constructs a ServerTransport based on HTTP2. ConnectionError is
// returned if something goes wrong.
func newHTTP2Server(conn net.Conn, maxStreams uint32, authInfo credentials.AuthInfo) (_ ServerTransport, err error) {
func newHTTP2Server(conn net.Conn, config *ServerConfig) (_ ServerTransport, err error) {
framer := newFramer(conn)
// Send initial settings as connection preface to client.
var settings []http2.Setting
// TODO(zhaoq): Have a better way to signal "no limit" because 0 is
// permitted in the HTTP2 spec.
maxStreams := config.MaxStreams
if maxStreams == 0 {
maxStreams = math.MaxUint32
} else {
@ -119,14 +156,40 @@ func newHTTP2Server(conn net.Conn, maxStreams uint32, authInfo credentials.AuthI
return nil, connectionErrorf(true, err, "transport: %v", err)
}
}
kp := config.KeepaliveParams
if kp.MaxConnectionIdle == 0 {
kp.MaxConnectionIdle = defaultMaxConnectionIdle
}
if kp.MaxConnectionAge == 0 {
kp.MaxConnectionAge = defaultMaxConnectionAge
}
// Add a jitter to MaxConnectionAge.
kp.MaxConnectionAge += getJitter(kp.MaxConnectionAge)
if kp.MaxConnectionAgeGrace == 0 {
kp.MaxConnectionAgeGrace = defaultMaxConnectionAgeGrace
}
if kp.Time == 0 {
kp.Time = defaultServerKeepaliveTime
}
if kp.Timeout == 0 {
kp.Timeout = defaultServerKeepaliveTimeout
}
kep := config.KeepalivePolicy
if kep.MinTime == 0 {
kep.MinTime = defaultKeepalivePolicyMinTime
}
var buf bytes.Buffer
t := &http2Server{
ctx: context.Background(),
conn: conn,
authInfo: authInfo,
remoteAddr: conn.RemoteAddr(),
localAddr: conn.LocalAddr(),
authInfo: config.AuthInfo,
framer: framer,
hBuf: &buf,
hEnc: hpack.NewEncoder(&buf),
maxStreams: maxStreams,
inTapHandle: config.InTapHandle,
controlBuf: newRecvBuffer(),
fc: &inFlow{limit: initialConnWindowSize},
sendQuotaPool: newQuotaPool(defaultWindowSize),
@ -135,14 +198,27 @@ func newHTTP2Server(conn net.Conn, maxStreams uint32, authInfo credentials.AuthI
shutdownChan: make(chan struct{}),
activeStreams: make(map[uint32]*Stream),
streamSendQuota: defaultWindowSize,
stats: config.StatsHandler,
kp: kp,
idle: time.Now(),
kep: kep,
}
if t.stats != nil {
t.ctx = t.stats.TagConn(t.ctx, &stats.ConnTagInfo{
RemoteAddr: t.remoteAddr,
LocalAddr: t.localAddr,
})
connBegin := &stats.ConnBegin{}
t.stats.HandleConn(t.ctx, connBegin)
}
go t.controller()
go t.keepalive()
t.writableChan <- 0
return t, nil
}
// operateHeader takes action on the decoded headers.
func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(*Stream)) (close bool) {
func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(*Stream), traceCtx func(context.Context, string) context.Context) (close bool) {
buf := newRecvBuffer()
s := &Stream{
id: frame.Header().StreamID,
@ -153,13 +229,12 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
var state decodeState
for _, hf := range frame.Fields {
state.processHeaderField(hf)
}
if err := state.err; err != nil {
if se, ok := err.(StreamError); ok {
t.controlBuf.put(&resetStream{s.id, statusCodeConvTab[se.Code]})
if err := state.processHeaderField(hf); err != nil {
if se, ok := err.(StreamError); ok {
t.controlBuf.put(&resetStream{s.id, statusCodeConvTab[se.Code]})
}
return
}
return
}
if frame.StreamEnded() {
@ -168,12 +243,12 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
}
s.recvCompress = state.encoding
if state.timeoutSet {
s.ctx, s.cancel = context.WithTimeout(context.TODO(), state.timeout)
s.ctx, s.cancel = context.WithTimeout(t.ctx, state.timeout)
} else {
s.ctx, s.cancel = context.WithCancel(context.TODO())
s.ctx, s.cancel = context.WithCancel(t.ctx)
}
pr := &peer.Peer{
Addr: t.conn.RemoteAddr(),
Addr: t.remoteAddr,
}
// Attach Auth info if there is any.
if t.authInfo != nil {
@ -186,7 +261,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
s.ctx = newContextWithStream(s.ctx, s)
// Attach the received metadata to the context.
if len(state.mdata) > 0 {
s.ctx = metadata.NewContext(s.ctx, state.mdata)
s.ctx = metadata.NewIncomingContext(s.ctx, state.mdata)
}
s.dec = &recvBufferReader{
@ -195,6 +270,18 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
}
s.recvCompress = state.encoding
s.method = state.method
if t.inTapHandle != nil {
var err error
info := &tap.Info{
FullMethodName: state.method,
}
s.ctx, err = t.inTapHandle(s.ctx, info)
if err != nil {
// TODO: Log the real error.
t.controlBuf.put(&resetStream{s.id, http2.ErrCodeRefusedStream})
return
}
}
t.mu.Lock()
if t.state != reachable {
t.mu.Unlock()
@ -214,17 +301,33 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
t.maxStreamID = s.id
s.sendQuotaPool = newQuotaPool(int(t.streamSendQuota))
t.activeStreams[s.id] = s
if len(t.activeStreams) == 1 {
t.idle = time.Time{}
}
t.mu.Unlock()
s.windowHandler = func(n int) {
t.updateWindow(s, uint32(n))
}
s.ctx = traceCtx(s.ctx, s.method)
if t.stats != nil {
s.ctx = t.stats.TagRPC(s.ctx, &stats.RPCTagInfo{FullMethodName: s.method})
inHeader := &stats.InHeader{
FullMethod: s.method,
RemoteAddr: t.remoteAddr,
LocalAddr: t.localAddr,
Compression: s.recvCompress,
WireLength: int(frame.Header().Length),
}
t.stats.HandleRPC(s.ctx, inHeader)
}
handle(s)
return
}
// HandleStreams receives incoming streams using the given handler. This is
// typically run in a separate goroutine.
func (t *http2Server) HandleStreams(handle func(*Stream)) {
// traceCtx attaches trace to ctx and returns the new context.
func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.Context, string) context.Context) {
// Check the validity of client preface.
preface := make([]byte, len(clientPreface))
if _, err := io.ReadFull(t.conn, preface); err != nil {
@ -248,6 +351,7 @@ func (t *http2Server) HandleStreams(handle func(*Stream)) {
t.Close()
return
}
atomic.StoreUint32(&t.activity, 1)
sf, ok := frame.(*http2.SettingsFrame)
if !ok {
grpclog.Printf("transport: http2Server.HandleStreams saw invalid preface type %T from client", frame)
@ -258,6 +362,7 @@ func (t *http2Server) HandleStreams(handle func(*Stream)) {
for {
frame, err := t.framer.readFrame()
atomic.StoreUint32(&t.activity, 1)
if err != nil {
if se, ok := err.(http2.StreamError); ok {
t.mu.Lock()
@ -279,7 +384,7 @@ func (t *http2Server) HandleStreams(handle func(*Stream)) {
}
switch frame := frame.(type) {
case *http2.MetaHeadersFrame:
if t.operateHeaders(frame, handle) {
if t.operateHeaders(frame, handle, traceCtx) {
t.Close()
break
}
@ -334,7 +439,7 @@ func (t *http2Server) updateWindow(s *Stream, n uint32) {
}
func (t *http2Server) handleData(f *http2.DataFrame) {
size := len(f.Data())
size := f.Header().Length
if err := t.fc.onData(uint32(size)); err != nil {
grpclog.Printf("transport: http2Server %v", err)
t.Close()
@ -349,6 +454,11 @@ func (t *http2Server) handleData(f *http2.DataFrame) {
return
}
if size > 0 {
if f.Header().Flags.Has(http2.FlagDataPadded) {
if w := t.fc.onRead(uint32(size) - uint32(len(f.Data()))); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
}
s.mu.Lock()
if s.state == streamDone {
s.mu.Unlock()
@ -364,13 +474,20 @@ func (t *http2Server) handleData(f *http2.DataFrame) {
t.controlBuf.put(&resetStream{s.id, http2.ErrCodeFlowControl})
return
}
if f.Header().Flags.Has(http2.FlagDataPadded) {
if w := s.fc.onRead(uint32(size) - uint32(len(f.Data()))); w > 0 {
t.controlBuf.put(&windowUpdate{s.id, w})
}
}
s.mu.Unlock()
// TODO(bradfitz, zhaoq): A copy is required here because there is no
// guarantee f.Data() is consumed before the arrival of next frame.
// Can this copy be eliminated?
data := make([]byte, size)
copy(data, f.Data())
s.write(recvMsg{data: data})
if len(f.Data()) > 0 {
data := make([]byte, len(f.Data()))
copy(data, f.Data())
s.write(recvMsg{data: data})
}
}
if f.Header().Flags.Has(http2.FlagDataEndStream) {
// Received the end of stream from the client.
@ -404,6 +521,11 @@ func (t *http2Server) handleSettings(f *http2.SettingsFrame) {
t.controlBuf.put(&settings{ack: true, ss: ss})
}
const (
maxPingStrikes = 2
defaultPingTimeout = 2 * time.Hour
)
func (t *http2Server) handlePing(f *http2.PingFrame) {
if f.IsAck() { // Do nothing.
return
@ -411,6 +533,38 @@ func (t *http2Server) handlePing(f *http2.PingFrame) {
pingAck := &ping{ack: true}
copy(pingAck.data[:], f.Data[:])
t.controlBuf.put(pingAck)
now := time.Now()
defer func() {
t.lastPingAt = now
}()
// A reset ping strikes means that we don't need to check for policy
// violation for this ping and the pingStrikes counter should be set
// to 0.
if atomic.CompareAndSwapUint32(&t.resetPingStrikes, 1, 0) {
t.pingStrikes = 0
return
}
t.mu.Lock()
ns := len(t.activeStreams)
t.mu.Unlock()
if ns < 1 && !t.kep.PermitWithoutStream {
// Keepalive shouldn't be active thus, this new ping should
// have come after atleast defaultPingTimeout.
if t.lastPingAt.Add(defaultPingTimeout).After(now) {
t.pingStrikes++
}
} else {
// Check if keepalive policy is respected.
if t.lastPingAt.Add(t.kep.MinTime).After(now) {
t.pingStrikes++
}
}
if t.pingStrikes > maxPingStrikes {
// Send goaway and close the connection.
t.controlBuf.put(&goAway{code: http2.ErrCodeEnhanceYourCalm, debugData: []byte("too_many_pings")})
}
}
func (t *http2Server) handleWindowUpdate(f *http2.WindowUpdateFrame) {
@ -429,6 +583,13 @@ func (t *http2Server) writeHeaders(s *Stream, b *bytes.Buffer, endStream bool) e
first := true
endHeaders := false
var err error
defer func() {
if err == nil {
// Reset ping strikes when seding headers since that might cause the
// peer to send ping.
atomic.StoreUint32(&t.resetPingStrikes, 1)
}
}()
// Sends the headers in a single batch.
for !endHeaders {
size := t.hBuf.Len()
@ -483,18 +644,25 @@ func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
if s.sendCompress != "" {
t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: s.sendCompress})
}
for k, v := range md {
for k, vv := range md {
if isReservedHeader(k) {
// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
continue
}
for _, entry := range v {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
for _, v := range vv {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
}
}
bufLen := t.hBuf.Len()
if err := t.writeHeaders(s, t.hBuf, false); err != nil {
return err
}
if t.stats != nil {
outHeader := &stats.OutHeader{
WireLength: bufLen,
}
t.stats.HandleRPC(s.Context(), outHeader)
}
t.writableChan <- 0
return nil
}
@ -503,7 +671,7 @@ func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
// There is no further I/O operations being able to perform on this stream.
// TODO(zhaoq): Now it indicates the end of entire stream. Revisit if early
// OK is adopted.
func (t *http2Server) WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error {
func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
var headersSent, hasHeader bool
s.mu.Lock()
if s.state == streamDone {
@ -534,23 +702,41 @@ func (t *http2Server) WriteStatus(s *Stream, statusCode codes.Code, statusDesc s
t.hEnc.WriteField(
hpack.HeaderField{
Name: "grpc-status",
Value: strconv.Itoa(int(statusCode)),
Value: strconv.Itoa(int(st.Code())),
})
t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-message", Value: encodeGrpcMessage(statusDesc)})
t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-message", Value: encodeGrpcMessage(st.Message())})
if p := st.Proto(); p != nil && len(p.Details) > 0 {
stBytes, err := proto.Marshal(p)
if err != nil {
// TODO: return error instead, when callers are able to handle it.
panic(err)
}
t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-status-details-bin", Value: encodeBinHeader(stBytes)})
}
// Attach the trailer metadata.
for k, v := range s.trailer {
for k, vv := range s.trailer {
// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
if isReservedHeader(k) {
continue
}
for _, entry := range v {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
for _, v := range vv {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
}
}
bufLen := t.hBuf.Len()
if err := t.writeHeaders(s, t.hBuf, true); err != nil {
t.Close()
return err
}
if t.stats != nil {
outTrailer := &stats.OutTrailer{
WireLength: bufLen,
}
t.stats.HandleRPC(s.Context(), outTrailer)
}
t.closeStream(s)
t.writableChan <- 0
return nil
@ -558,7 +744,7 @@ func (t *http2Server) WriteStatus(s *Stream, statusCode codes.Code, statusDesc s
// Write converts the data into HTTP2 data frame and sends it out. Non-nil error
// is returns if it fails (e.g., framing error, transport error).
func (t *http2Server) Write(s *Stream, data []byte, opts *Options) error {
func (t *http2Server) Write(s *Stream, data []byte, opts *Options) (err error) {
// TODO(zhaoq): Support multi-writers for a single stream.
var writeHeaderFrame bool
s.mu.Lock()
@ -573,25 +759,27 @@ func (t *http2Server) Write(s *Stream, data []byte, opts *Options) error {
if writeHeaderFrame {
t.WriteHeader(s, nil)
}
defer func() {
if err == nil {
// Reset ping strikes when sending data since this might cause
// the peer to send ping.
atomic.StoreUint32(&t.resetPingStrikes, 1)
}
}()
r := bytes.NewBuffer(data)
for {
if r.Len() == 0 {
return nil
}
size := http2MaxFrameLen
s.sendQuotaPool.add(0)
// Wait until the stream has some quota to send the data.
sq, err := wait(s.ctx, nil, nil, t.shutdownChan, s.sendQuotaPool.acquire())
if err != nil {
return err
}
t.sendQuotaPool.add(0)
// Wait until the transport has some quota to send the data.
tq, err := wait(s.ctx, nil, nil, t.shutdownChan, t.sendQuotaPool.acquire())
if err != nil {
if _, ok := err.(StreamError); ok {
t.sendQuotaPool.cancel()
}
return err
}
if sq < size {
@ -659,7 +847,7 @@ func (t *http2Server) applySettings(ss []http2.Setting) {
t.mu.Lock()
defer t.mu.Unlock()
for _, stream := range t.activeStreams {
stream.sendQuotaPool.reset(int(s.Val - t.streamSendQuota))
stream.sendQuotaPool.add(int(s.Val - t.streamSendQuota))
}
t.streamSendQuota = s.Val
}
@ -667,6 +855,91 @@ func (t *http2Server) applySettings(ss []http2.Setting) {
}
}
// keepalive running in a separate goroutine does the following:
// 1. Gracefully closes an idle connection after a duration of keepalive.MaxConnectionIdle.
// 2. Gracefully closes any connection after a duration of keepalive.MaxConnectionAge.
// 3. Forcibly closes a connection after an additive period of keepalive.MaxConnectionAgeGrace over keepalive.MaxConnectionAge.
// 4. Makes sure a connection is alive by sending pings with a frequency of keepalive.Time and closes a non-resposive connection
// after an additional duration of keepalive.Timeout.
func (t *http2Server) keepalive() {
p := &ping{}
var pingSent bool
maxIdle := time.NewTimer(t.kp.MaxConnectionIdle)
maxAge := time.NewTimer(t.kp.MaxConnectionAge)
keepalive := time.NewTimer(t.kp.Time)
// NOTE: All exit paths of this function should reset their
// respecitve timers. A failure to do so will cause the
// following clean-up to deadlock and eventually leak.
defer func() {
if !maxIdle.Stop() {
<-maxIdle.C
}
if !maxAge.Stop() {
<-maxAge.C
}
if !keepalive.Stop() {
<-keepalive.C
}
}()
for {
select {
case <-maxIdle.C:
t.mu.Lock()
idle := t.idle
if idle.IsZero() { // The connection is non-idle.
t.mu.Unlock()
maxIdle.Reset(t.kp.MaxConnectionIdle)
continue
}
val := t.kp.MaxConnectionIdle - time.Since(idle)
if val <= 0 {
// The connection has been idle for a duration of keepalive.MaxConnectionIdle or more.
// Gracefully close the connection.
t.state = draining
t.mu.Unlock()
t.Drain()
// Reseting the timer so that the clean-up doesn't deadlock.
maxIdle.Reset(infinity)
return
}
t.mu.Unlock()
maxIdle.Reset(val)
case <-maxAge.C:
t.mu.Lock()
t.state = draining
t.mu.Unlock()
t.Drain()
maxAge.Reset(t.kp.MaxConnectionAgeGrace)
select {
case <-maxAge.C:
// Close the connection after grace period.
t.Close()
// Reseting the timer so that the clean-up doesn't deadlock.
maxAge.Reset(infinity)
case <-t.shutdownChan:
}
return
case <-keepalive.C:
if atomic.CompareAndSwapUint32(&t.activity, 1, 0) {
pingSent = false
keepalive.Reset(t.kp.Time)
continue
}
if pingSent {
t.Close()
// Reseting the timer so that the clean-up doesn't deadlock.
keepalive.Reset(infinity)
return
}
pingSent = true
t.controlBuf.put(p)
keepalive.Reset(t.kp.Timeout)
case <-t.shutdownChan:
return
}
}
}
// controller running in a separate goroutine takes charge of sending control
// frames (e.g., window update, reset stream, setting, etc.) to the server.
func (t *http2Server) controller() {
@ -698,7 +971,10 @@ func (t *http2Server) controller() {
sid := t.maxStreamID
t.state = draining
t.mu.Unlock()
t.framer.writeGoAway(true, sid, http2.ErrCodeNo, nil)
t.framer.writeGoAway(true, sid, i.code, i.debugData)
if i.code == http2.ErrCodeEnhanceYourCalm {
t.Close()
}
case *flushIO:
t.framer.flushWrite()
case *ping:
@ -736,6 +1012,10 @@ func (t *http2Server) Close() (err error) {
for _, s := range streams {
s.cancel()
}
if t.stats != nil {
connEnd := &stats.ConnEnd{}
t.stats.HandleConn(t.ctx, connEnd)
}
return
}
@ -744,6 +1024,9 @@ func (t *http2Server) Close() (err error) {
func (t *http2Server) closeStream(s *Stream) {
t.mu.Lock()
delete(t.activeStreams, s.id)
if len(t.activeStreams) == 0 {
t.idle = time.Now()
}
if t.state == draining && len(t.activeStreams) == 0 {
defer t.Close()
}
@ -767,9 +1050,21 @@ func (t *http2Server) closeStream(s *Stream) {
}
func (t *http2Server) RemoteAddr() net.Addr {
return t.conn.RemoteAddr()
return t.remoteAddr
}
func (t *http2Server) Drain() {
t.controlBuf.put(&goAway{})
t.controlBuf.put(&goAway{code: http2.ErrCodeNo})
}
var rgen = rand.New(rand.NewSource(time.Now().UnixNano()))
func getJitter(v time.Duration) time.Duration {
if v == infinity {
return 0
}
// Generate a jitter between +/- 10% of the value.
r := int64(v / 10)
j := rgen.Int63n(2*r) - r
return time.Duration(j)
}

112
vendor/google.golang.org/grpc/transport/http_util.go generated vendored
View File

@ -36,6 +36,7 @@ package transport
import (
"bufio"
"bytes"
"encoding/base64"
"fmt"
"io"
"net"
@ -44,16 +45,16 @@ import (
"sync/atomic"
"time"
"github.com/golang/protobuf/proto"
"golang.org/x/net/http2"
"golang.org/x/net/http2/hpack"
spb "google.golang.org/genproto/googleapis/rpc/status"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
)
const (
// The primary user agent
primaryUA = "grpc-go/1.0"
// http2MaxFrameLen specifies the max length of a HTTP2 frame.
http2MaxFrameLen = 16384 // 16KB frame
// http://http2.github.io/http2-spec/#SettingValues
@ -92,13 +93,15 @@ var (
// Records the states during HPACK decoding. Must be reset once the
// decoding of the entire headers are finished.
type decodeState struct {
err error // first error encountered decoding
encoding string
// statusCode caches the stream status received from the trailer
// the server sent. Client side only.
statusCode codes.Code
statusDesc string
// statusGen caches the stream status received from the trailer the server
// sent. Client side only. Do not access directly. After all trailers are
// parsed, use the status method to retrieve the status.
statusGen *status.Status
// rawStatusCode and rawStatusMsg are set from the raw trailer fields and are not
// intended for direct access outside of parsing.
rawStatusCode int32
rawStatusMsg string
// Server side only fields.
timeoutSet bool
timeout time.Duration
@ -121,6 +124,7 @@ func isReservedHeader(hdr string) bool {
"grpc-message",
"grpc-status",
"grpc-timeout",
"grpc-status-details-bin",
"te":
return true
default:
@ -139,12 +143,6 @@ func isWhitelistedPseudoHeader(hdr string) bool {
}
}
func (d *decodeState) setErr(err error) {
if d.err == nil {
d.err = err
}
}
func validContentType(t string) bool {
e := "application/grpc"
if !strings.HasPrefix(t, e) {
@ -158,56 +156,91 @@ func validContentType(t string) bool {
return true
}
func (d *decodeState) processHeaderField(f hpack.HeaderField) {
func (d *decodeState) status() *status.Status {
if d.statusGen == nil {
// No status-details were provided; generate status using code/msg.
d.statusGen = status.New(codes.Code(d.rawStatusCode), d.rawStatusMsg)
}
return d.statusGen
}
const binHdrSuffix = "-bin"
func encodeBinHeader(v []byte) string {
return base64.RawStdEncoding.EncodeToString(v)
}
func decodeBinHeader(v string) ([]byte, error) {
if len(v)%4 == 0 {
// Input was padded, or padding was not necessary.
return base64.StdEncoding.DecodeString(v)
}
return base64.RawStdEncoding.DecodeString(v)
}
func encodeMetadataHeader(k, v string) string {
if strings.HasSuffix(k, binHdrSuffix) {
return encodeBinHeader(([]byte)(v))
}
return v
}
func decodeMetadataHeader(k, v string) (string, error) {
if strings.HasSuffix(k, binHdrSuffix) {
b, err := decodeBinHeader(v)
return string(b), err
}
return v, nil
}
func (d *decodeState) processHeaderField(f hpack.HeaderField) error {
switch f.Name {
case "content-type":
if !validContentType(f.Value) {
d.setErr(streamErrorf(codes.FailedPrecondition, "transport: received the unexpected content-type %q", f.Value))
return
return streamErrorf(codes.FailedPrecondition, "transport: received the unexpected content-type %q", f.Value)
}
case "grpc-encoding":
d.encoding = f.Value
case "grpc-status":
code, err := strconv.Atoi(f.Value)
if err != nil {
d.setErr(streamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err))
return
return streamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err)
}
d.statusCode = codes.Code(code)
d.rawStatusCode = int32(code)
case "grpc-message":
d.statusDesc = decodeGrpcMessage(f.Value)
d.rawStatusMsg = decodeGrpcMessage(f.Value)
case "grpc-status-details-bin":
v, err := decodeBinHeader(f.Value)
if err != nil {
return streamErrorf(codes.Internal, "transport: malformed grpc-status-details-bin: %v", err)
}
s := &spb.Status{}
if err := proto.Unmarshal(v, s); err != nil {
return streamErrorf(codes.Internal, "transport: malformed grpc-status-details-bin: %v", err)
}
d.statusGen = status.FromProto(s)
case "grpc-timeout":
d.timeoutSet = true
var err error
d.timeout, err = decodeTimeout(f.Value)
if err != nil {
d.setErr(streamErrorf(codes.Internal, "transport: malformed time-out: %v", err))
return
if d.timeout, err = decodeTimeout(f.Value); err != nil {
return streamErrorf(codes.Internal, "transport: malformed time-out: %v", err)
}
case ":path":
d.method = f.Value
default:
if !isReservedHeader(f.Name) || isWhitelistedPseudoHeader(f.Name) {
if f.Name == "user-agent" {
i := strings.LastIndex(f.Value, " ")
if i == -1 {
// There is no application user agent string being set.
return
}
// Extract the application user agent string.
f.Value = f.Value[:i]
}
if d.mdata == nil {
d.mdata = make(map[string][]string)
}
k, v, err := metadata.DecodeKeyValue(f.Name, f.Value)
v, err := decodeMetadataHeader(f.Name, f.Value)
if err != nil {
grpclog.Printf("Failed to decode (%q, %q): %v", f.Name, f.Value, err)
return
return nil
}
d.mdata[k] = append(d.mdata[k], v)
d.mdata[f.Name] = append(d.mdata[f.Name], v)
}
}
return nil
}
type timeoutUnit uint8
@ -379,6 +412,9 @@ func newFramer(conn net.Conn) *framer {
writer: bufio.NewWriterSize(conn, http2IOBufSize),
}
f.fr = http2.NewFramer(f.writer, f.reader)
// Opt-in to Frame reuse API on framer to reduce garbage.
// Frames aren't safe to read from after a subsequent call to ReadFrame.
f.fr.SetReuseFrames()
f.fr.ReadMetaHeaders = hpack.NewDecoder(http2InitHeaderTableSize, nil)
return f
}

121
vendor/google.golang.org/grpc/transport/transport.go generated vendored
View File

@ -45,10 +45,14 @@ import (
"sync"
"golang.org/x/net/context"
"golang.org/x/net/trace"
"golang.org/x/net/http2"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
"google.golang.org/grpc/tap"
)
// recvMsg represents the received msg from the transport. All transport
@ -167,6 +171,11 @@ type Stream struct {
id uint32
// nil for client side Stream.
st ServerTransport
// clientStatsCtx keeps the user context for stats handling.
// It's only valid on client side. Server side stats context is same as s.ctx.
// All client side stats collection should use the clientStatsCtx (instead of the stream context)
// so that all the generated stats for a particular RPC can be associated in the processing phase.
clientStatsCtx context.Context
// ctx is the associated context of the stream.
ctx context.Context
// cancel is always nil for client side Stream.
@ -204,9 +213,17 @@ type Stream struct {
// true iff headerChan is closed. Used to avoid closing headerChan
// multiple times.
headerDone bool
// the status received from the server.
statusCode codes.Code
statusDesc string
// the status error received from the server.
status *status.Status
// rstStream indicates whether a RST_STREAM frame needs to be sent
// to the server to signify that this stream is closing.
rstStream bool
// rstError is the error that needs to be sent along with the RST_STREAM frame.
rstError http2.ErrCode
// bytesSent and bytesReceived indicates whether any bytes have been sent or
// received on this stream.
bytesSent bool
bytesReceived bool
}
// RecvCompress returns the compression algorithm applied to the inbound
@ -266,24 +283,14 @@ func (s *Stream) Context() context.Context {
return s.ctx
}
// TraceContext recreates the context of s with a trace.Trace.
func (s *Stream) TraceContext(tr trace.Trace) {
s.ctx = trace.NewContext(s.ctx, tr)
}
// Method returns the method for the stream.
func (s *Stream) Method() string {
return s.method
}
// StatusCode returns statusCode received from the server.
func (s *Stream) StatusCode() codes.Code {
return s.statusCode
}
// StatusDesc returns statusDesc received from the server.
func (s *Stream) StatusDesc() string {
return s.statusDesc
// Status returns the status received from the server.
func (s *Stream) Status() *status.Status {
return s.status
}
// SetHeader sets the header metadata. This can be called multiple times.
@ -330,6 +337,34 @@ func (s *Stream) Read(p []byte) (n int, err error) {
return
}
// finish sets the stream's state and status, and closes the done channel.
// s.mu must be held by the caller. st must always be non-nil.
func (s *Stream) finish(st *status.Status) {
s.status = st
s.state = streamDone
close(s.done)
}
// BytesSent indicates whether any bytes have been sent on this stream.
func (s *Stream) BytesSent() bool {
s.mu.Lock()
defer s.mu.Unlock()
return s.bytesSent
}
// BytesReceived indicates whether any bytes have been received on this stream.
func (s *Stream) BytesReceived() bool {
s.mu.Lock()
defer s.mu.Unlock()
return s.bytesReceived
}
// GoString is implemented by Stream so context.String() won't
// race when printing %#v.
func (s *Stream) GoString() string {
return fmt.Sprintf("<stream: %p, %v>", s, s.method)
}
// The key to save transport.Stream in the context.
type streamKey struct{}
@ -355,22 +390,41 @@ const (
draining
)
// ServerConfig consists of all the configurations to establish a server transport.
type ServerConfig struct {
MaxStreams uint32
AuthInfo credentials.AuthInfo
InTapHandle tap.ServerInHandle
StatsHandler stats.Handler
KeepaliveParams keepalive.ServerParameters
KeepalivePolicy keepalive.EnforcementPolicy
}
// NewServerTransport creates a ServerTransport with conn or non-nil error
// if it fails.
func NewServerTransport(protocol string, conn net.Conn, maxStreams uint32, authInfo credentials.AuthInfo) (ServerTransport, error) {
return newHTTP2Server(conn, maxStreams, authInfo)
func NewServerTransport(protocol string, conn net.Conn, config *ServerConfig) (ServerTransport, error) {
return newHTTP2Server(conn, config)
}
// ConnectOptions covers all relevant options for communicating with the server.
type ConnectOptions struct {
// UserAgent is the application user agent.
UserAgent string
// Authority is the :authority pseudo-header to use. This field has no effect if
// TransportCredentials is set.
Authority string
// Dialer specifies how to dial a network address.
Dialer func(context.Context, string) (net.Conn, error)
// FailOnNonTempDialError specifies if gRPC fails on non-temporary dial errors.
FailOnNonTempDialError bool
// PerRPCCredentials stores the PerRPCCredentials required to issue RPCs.
PerRPCCredentials []credentials.PerRPCCredentials
// TransportCredentials stores the Authenticator required to setup a client connection.
TransportCredentials credentials.TransportCredentials
// KeepaliveParams stores the keepalive parameters.
KeepaliveParams keepalive.ClientParameters
// StatsHandler stores the handler for stats.
StatsHandler stats.Handler
}
// TargetInfo contains the information of the target such as network address and metadata.
@ -457,6 +511,9 @@ type ClientTransport interface {
// receives the draining signal from the server (e.g., GOAWAY frame in
// HTTP/2).
GoAway() <-chan struct{}
// GetGoAwayReason returns the reason why GoAway frame was received.
GetGoAwayReason() GoAwayReason
}
// ServerTransport is the common interface for all gRPC server-side transport
@ -466,7 +523,7 @@ type ClientTransport interface {
// Write methods for a given Stream will be called serially.
type ServerTransport interface {
// HandleStreams receives incoming streams using the given handler.
HandleStreams(func(*Stream))
HandleStreams(func(*Stream), func(context.Context, string) context.Context)
// WriteHeader sends the header metadata for the given stream.
// WriteHeader may not be called on all streams.
@ -476,10 +533,9 @@ type ServerTransport interface {
// Write may not be called on all streams.
Write(s *Stream, data []byte, opts *Options) error
// WriteStatus sends the status of a stream to the client.
// WriteStatus is the final call made on a stream and always
// occurs.
WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error
// WriteStatus sends the status of a stream to the client. WriteStatus is
// the final call made on a stream and always occurs.
WriteStatus(s *Stream, st *status.Status) error
// Close tears down the transport. Once it is called, the transport
// should not be accessed any more. All the pending streams and their
@ -545,6 +601,8 @@ var (
ErrStreamDrain = streamErrorf(codes.Unavailable, "the server stops accepting new RPCs")
)
// TODO: See if we can replace StreamError with status package errors.
// StreamError is an error that only affects one stream within a connection.
type StreamError struct {
Code codes.Code
@ -552,7 +610,7 @@ type StreamError struct {
}
func (e StreamError) Error() string {
return fmt.Sprintf("stream error: code = %d desc = %q", e.Code, e.Desc)
return fmt.Sprintf("stream error: code = %s desc = %q", e.Code, e.Desc)
}
// ContextErr converts the error from context package into a StreamError.
@ -593,3 +651,16 @@ func wait(ctx context.Context, done, goAway, closing <-chan struct{}, proceed <-
return i, nil
}
}
// GoAwayReason contains the reason for the GoAway frame received.
type GoAwayReason uint8
const (
// Invalid indicates that no GoAway frame is received.
Invalid GoAwayReason = 0
// NoReason is the default value when GoAway frame is received.
NoReason GoAwayReason = 1
// TooManyPings indicates that a GoAway frame with ErrCodeEnhanceYourCalm
// was recieved and that the debug data said "too_many_pings".
TooManyPings GoAwayReason = 2
)