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vendor: github.com/containerd/containerd v1.6.10 

full diff: https://github.com/containerd/containerd/compare/v1.6.8...v1.6.10

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2022-11-16 16:32:17 +01:00
parent 88b33a667f
commit 86038fdb68
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
70 changed files with 5963 additions and 816 deletions
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8
vendor.mod
View File

@ -7,7 +7,7 @@ module github.com/docker/cli
go 1.18
require (
github.com/containerd/containerd v1.6.8
github.com/containerd/containerd v1.6.10
github.com/creack/pty v1.1.11
github.com/docker/distribution v2.8.1+incompatible
github.com/docker/docker v20.10.20+incompatible // v22.06.x - see "replace" for the actual version
@ -71,9 +71,9 @@ require (
golang.org/x/crypto v0.1.0 // indirect
golang.org/x/net v0.1.0 // indirect
golang.org/x/time v0.1.0 // indirect
google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa // indirect
google.golang.org/grpc v1.45.0 // indirect
google.golang.org/protobuf v1.27.1 // indirect
google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21 // indirect
google.golang.org/grpc v1.47.0 // indirect
google.golang.org/protobuf v1.28.0 // indirect
)
replace (

31
vendor.sum
View File

@ -38,8 +38,7 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/Microsoft/go-winio v0.5.2 h1:a9IhgEQBCUEk6QCdml9CiJGhAws+YwffDHEMp1VMrpA=
github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
github.com/Microsoft/hcsshim v0.9.4 h1:mnUj0ivWy6UzbB1uLFqKR6F+ZyiDc7j4iGgHTpO+5+I=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/Microsoft/hcsshim v0.9.5 h1:AbV+VPfTrIVffukazHcpxmz/sRiE6YaMDzHWR9BXZHo=
github.com/Shopify/logrus-bugsnag v0.0.0-20170309145241-6dbc35f2c30d h1:hi6J4K6DKrR4/ljxn6SF6nURyu785wKMuQcjt7H3VCQ=
github.com/Shopify/logrus-bugsnag v0.0.0-20170309145241-6dbc35f2c30d/go.mod h1:HI8ITrYtUY+O+ZhtlqUnD8+KwNPOyugEhfP9fdUIaEQ=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
@ -64,7 +63,6 @@ github.com/bugsnag/panicwrap v0.0.0-20151223152923-e2c28503fcd0/go.mod h1:D/8v3k
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/certifi/gocertifi v0.0.0-20191021191039-0944d244cd40/go.mod h1:sGbDF6GwGcLpkNXPUTkMRoywsNa/ol15pxFe6ERfguA=
github.com/certifi/gocertifi v0.0.0-20200922220541-2c3bb06c6054/go.mod h1:sGbDF6GwGcLpkNXPUTkMRoywsNa/ol15pxFe6ERfguA=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
@ -79,17 +77,16 @@ github.com/cloudflare/cfssl v0.0.0-20180323000720-5d63dbd981b5 h1:PqZ3bA4yzwywiv
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cockroachdb/datadriven v0.0.0-20200714090401-bf6692d28da5/go.mod h1:h6jFvWxBdQXxjopDMZyH2UVceIRfR84bdzbkoKrsWNo=
github.com/cockroachdb/errors v1.2.4/go.mod h1:rQD95gz6FARkaKkQXUksEje/d9a6wBJoCr5oaCLELYA=
github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f/go.mod h1:i/u985jwjWRlyHXQbwatDASoW0RMlZ/3i9yJHE2xLkI=
github.com/containerd/console v1.0.3/go.mod h1:7LqA/THxQ86k76b8c/EMSiaJ3h1eZkMkXar0TQ1gf3U=
github.com/containerd/containerd v1.6.8 h1:h4dOFDwzHmqFEP754PgfgTeVXFnLiRc6kiqC7tplDJs=
github.com/containerd/containerd v1.6.8/go.mod h1:By6p5KqPK0/7/CgO/A6t/Gz+CUYUu2zf1hUaaymVXB0=
github.com/containerd/continuity v0.2.3-0.20220330195504-d132b287edc8 h1:yGFEcFNMhze29DxAAB33v/1OMRYF/cM9iwwgV2P0ZrE=
github.com/containerd/containerd v1.6.10 h1:8aiav7I2ZyQLbTlNMcBXyAU1FtFvp6VuyuW13qSd6Hk=
github.com/containerd/containerd v1.6.10/go.mod h1:CVqfxdJ95PDgORwA219AwwLrREZgrTFybXu2HfMKRG0=
github.com/containerd/continuity v0.3.0 h1:nisirsYROK15TAMVukJOUyGJjz4BNQJBVsNvAXZJ/eg=
github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
@ -127,8 +124,7 @@ github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymF
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ=
github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0=
github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0=
github.com/frankban/quicktest v1.11.3/go.mod h1:wRf/ReqHper53s+kmmSZizM8NamnL3IM0I9ntUbOk+k=
@ -198,6 +194,7 @@ github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@ -370,7 +367,6 @@ github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrf
github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
github.com/spf13/cast v0.0.0-20150508191742-4d07383ffe94 h1:JmfC365KywYwHB946TTiQWEb8kqPY+pybPLoGE9GgVk=
github.com/spf13/cast v0.0.0-20150508191742-4d07383ffe94/go.mod h1:r2rcYCSwa1IExKTDiTfzaxqT2FNHs8hODu4LnUfgKEg=
github.com/spf13/cobra v0.0.1/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
@ -688,8 +684,8 @@ google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7Fc
google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa h1:I0YcKz0I7OAhddo7ya8kMnvprhcWM045PmkBdMO9zN0=
google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21 h1:hrbNEivu7Zn1pxvHk6MBrq9iE22woVILTHqexqBxe6I=
google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21/go.mod h1:RAyBrSAP7Fh3Nc84ghnVLDPuV51xc9agzmm4Ph6i0Q4=
google.golang.org/grpc v1.0.5/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
@ -705,9 +701,9 @@ google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM
google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
google.golang.org/grpc v1.45.0 h1:NEpgUqV3Z+ZjkqMsxMg11IaDrXY4RY6CQukSGK0uI1M=
google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11+0rQ=
google.golang.org/grpc v1.46.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
google.golang.org/grpc v1.47.0 h1:9n77onPX5F3qfFCqjy9dhn8PbNQsIKeVU04J9G7umt8=
google.golang.org/grpc v1.47.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -720,8 +716,9 @@ google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGj
google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/cenkalti/backoff.v2 v2.2.1 h1:eJ9UAg01/HIHG987TwxvnzK2MgxXq97YY6rYDpY9aII=

8
vendor/github.com/containerd/containerd/platforms/platforms.go generated vendored
View File

@ -42,7 +42,7 @@
//
// More details of the specifier syntax and platform spec follow.
//
// Declaring Platform Support
// # Declaring Platform Support
//
// Components that have strict platform requirements should use the OCI
// platform specification to declare their support. Typically, this will be
@ -60,7 +60,7 @@
// specification when in doubt). ARM should set variant under certain
// discussions, which are outlined below.
//
// Platform Specifiers
// # Platform Specifiers
//
// While the OCI platform specifications provide a tool for components to
// specify structured information, user input typically doesn't need the full
@ -77,7 +77,7 @@
// where the architecture may be known but a runtime may support images from
// different operating systems.
//
// Normalization
// # Normalization
//
// Because not all users are familiar with the way the Go runtime represents
// platforms, several normalizations have been provided to make this package
@ -95,7 +95,7 @@
//
// We also normalize the operating system `macos` to `darwin`.
//
// ARM Support
// # ARM Support
//
// To qualify ARM architecture, the Variant field is used to qualify the arm
// version. The most common arm version, v7, is represented without the variant

524
vendor/github.com/golang/protobuf/jsonpb/decode.go generated vendored Normal file
View File

@ -0,0 +1,524 @@
// 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.
package jsonpb
import (
"encoding/json"
"errors"
"fmt"
"io"
"math"
"reflect"
"strconv"
"strings"
"time"
"github.com/golang/protobuf/proto"
"google.golang.org/protobuf/encoding/protojson"
protoV2 "google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/reflect/protoregistry"
)
const wrapJSONUnmarshalV2 = false
// UnmarshalNext unmarshals the next JSON object from d into m.
func UnmarshalNext(d *json.Decoder, m proto.Message) error {
return new(Unmarshaler).UnmarshalNext(d, m)
}
// Unmarshal unmarshals a JSON object from r into m.
func Unmarshal(r io.Reader, m proto.Message) error {
return new(Unmarshaler).Unmarshal(r, m)
}
// UnmarshalString unmarshals a JSON object from s into m.
func UnmarshalString(s string, m proto.Message) error {
return new(Unmarshaler).Unmarshal(strings.NewReader(s), m)
}
// Unmarshaler is a configurable object for converting from a JSON
// representation to a protocol buffer object.
type Unmarshaler struct {
// AllowUnknownFields specifies whether to allow messages to contain
// unknown JSON fields, as opposed to failing to unmarshal.
AllowUnknownFields bool
// AnyResolver is used to resolve the google.protobuf.Any well-known type.
// If unset, the global registry is used by default.
AnyResolver AnyResolver
}
// JSONPBUnmarshaler is implemented by protobuf messages that customize the way
// they are unmarshaled from JSON. Messages that implement this should also
// implement JSONPBMarshaler so that the custom format can be produced.
//
// The JSON unmarshaling must follow the JSON to proto specification:
// https://developers.google.com/protocol-buffers/docs/proto3#json
//
// Deprecated: Custom types should implement protobuf reflection instead.
type JSONPBUnmarshaler interface {
UnmarshalJSONPB(*Unmarshaler, []byte) error
}
// Unmarshal unmarshals a JSON object from r into m.
func (u *Unmarshaler) Unmarshal(r io.Reader, m proto.Message) error {
return u.UnmarshalNext(json.NewDecoder(r), m)
}
// UnmarshalNext unmarshals the next JSON object from d into m.
func (u *Unmarshaler) UnmarshalNext(d *json.Decoder, m proto.Message) error {
if m == nil {
return errors.New("invalid nil message")
}
// Parse the next JSON object from the stream.
raw := json.RawMessage{}
if err := d.Decode(&raw); err != nil {
return err
}
// Check for custom unmarshalers first since they may not properly
// implement protobuf reflection that the logic below relies on.
if jsu, ok := m.(JSONPBUnmarshaler); ok {
return jsu.UnmarshalJSONPB(u, raw)
}
mr := proto.MessageReflect(m)
// NOTE: For historical reasons, a top-level null is treated as a noop.
// This is incorrect, but kept for compatibility.
if string(raw) == "null" && mr.Descriptor().FullName() != "google.protobuf.Value" {
return nil
}
if wrapJSONUnmarshalV2 {
// NOTE: If input message is non-empty, we need to preserve merge semantics
// of the old jsonpb implementation. These semantics are not supported by
// the protobuf JSON specification.
isEmpty := true
mr.Range(func(protoreflect.FieldDescriptor, protoreflect.Value) bool {
isEmpty = false // at least one iteration implies non-empty
return false
})
if !isEmpty {
// Perform unmarshaling into a newly allocated, empty message.
mr = mr.New()
// Use a defer to copy all unmarshaled fields into the original message.
dst := proto.MessageReflect(m)
defer mr.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
dst.Set(fd, v)
return true
})
}
// Unmarshal using the v2 JSON unmarshaler.
opts := protojson.UnmarshalOptions{
DiscardUnknown: u.AllowUnknownFields,
}
if u.AnyResolver != nil {
opts.Resolver = anyResolver{u.AnyResolver}
}
return opts.Unmarshal(raw, mr.Interface())
} else {
if err := u.unmarshalMessage(mr, raw); err != nil {
return err
}
return protoV2.CheckInitialized(mr.Interface())
}
}
func (u *Unmarshaler) unmarshalMessage(m protoreflect.Message, in []byte) error {
md := m.Descriptor()
fds := md.Fields()
if jsu, ok := proto.MessageV1(m.Interface()).(JSONPBUnmarshaler); ok {
return jsu.UnmarshalJSONPB(u, in)
}
if string(in) == "null" && md.FullName() != "google.protobuf.Value" {
return nil
}
switch wellKnownType(md.FullName()) {
case "Any":
var jsonObject map[string]json.RawMessage
if err := json.Unmarshal(in, &jsonObject); err != nil {
return err
}
rawTypeURL, ok := jsonObject["@type"]
if !ok {
return errors.New("Any JSON doesn't have '@type'")
}
typeURL, err := unquoteString(string(rawTypeURL))
if err != nil {
return fmt.Errorf("can't unmarshal Any's '@type': %q", rawTypeURL)
}
m.Set(fds.ByNumber(1), protoreflect.ValueOfString(typeURL))
var m2 protoreflect.Message
if u.AnyResolver != nil {
mi, err := u.AnyResolver.Resolve(typeURL)
if err != nil {
return err
}
m2 = proto.MessageReflect(mi)
} else {
mt, err := protoregistry.GlobalTypes.FindMessageByURL(typeURL)
if err != nil {
if err == protoregistry.NotFound {
return fmt.Errorf("could not resolve Any message type: %v", typeURL)
}
return err
}
m2 = mt.New()
}
if wellKnownType(m2.Descriptor().FullName()) != "" {
rawValue, ok := jsonObject["value"]
if !ok {
return errors.New("Any JSON doesn't have 'value'")
}
if err := u.unmarshalMessage(m2, rawValue); err != nil {
return fmt.Errorf("can't unmarshal Any nested proto %v: %v", typeURL, err)
}
} else {
delete(jsonObject, "@type")
rawJSON, err := json.Marshal(jsonObject)
if err != nil {
return fmt.Errorf("can't generate JSON for Any's nested proto to be unmarshaled: %v", err)
}
if err = u.unmarshalMessage(m2, rawJSON); err != nil {
return fmt.Errorf("can't unmarshal Any nested proto %v: %v", typeURL, err)
}
}
rawWire, err := protoV2.Marshal(m2.Interface())
if err != nil {
return fmt.Errorf("can't marshal proto %v into Any.Value: %v", typeURL, err)
}
m.Set(fds.ByNumber(2), protoreflect.ValueOfBytes(rawWire))
return nil
case "BoolValue", "BytesValue", "StringValue",
"Int32Value", "UInt32Value", "FloatValue",
"Int64Value", "UInt64Value", "DoubleValue":
fd := fds.ByNumber(1)
v, err := u.unmarshalValue(m.NewField(fd), in, fd)
if err != nil {
return err
}
m.Set(fd, v)
return nil
case "Duration":
v, err := unquoteString(string(in))
if err != nil {
return err
}
d, err := time.ParseDuration(v)
if err != nil {
return fmt.Errorf("bad Duration: %v", err)
}
sec := d.Nanoseconds() / 1e9
nsec := d.Nanoseconds() % 1e9
m.Set(fds.ByNumber(1), protoreflect.ValueOfInt64(int64(sec)))
m.Set(fds.ByNumber(2), protoreflect.ValueOfInt32(int32(nsec)))
return nil
case "Timestamp":
v, err := unquoteString(string(in))
if err != nil {
return err
}
t, err := time.Parse(time.RFC3339Nano, v)
if err != nil {
return fmt.Errorf("bad Timestamp: %v", err)
}
sec := t.Unix()
nsec := t.Nanosecond()
m.Set(fds.ByNumber(1), protoreflect.ValueOfInt64(int64(sec)))
m.Set(fds.ByNumber(2), protoreflect.ValueOfInt32(int32(nsec)))
return nil
case "Value":
switch {
case string(in) == "null":
m.Set(fds.ByNumber(1), protoreflect.ValueOfEnum(0))
case string(in) == "true":
m.Set(fds.ByNumber(4), protoreflect.ValueOfBool(true))
case string(in) == "false":
m.Set(fds.ByNumber(4), protoreflect.ValueOfBool(false))
case hasPrefixAndSuffix('"', in, '"'):
s, err := unquoteString(string(in))
if err != nil {
return fmt.Errorf("unrecognized type for Value %q", in)
}
m.Set(fds.ByNumber(3), protoreflect.ValueOfString(s))
case hasPrefixAndSuffix('[', in, ']'):
v := m.Mutable(fds.ByNumber(6))
return u.unmarshalMessage(v.Message(), in)
case hasPrefixAndSuffix('{', in, '}'):
v := m.Mutable(fds.ByNumber(5))
return u.unmarshalMessage(v.Message(), in)
default:
f, err := strconv.ParseFloat(string(in), 0)
if err != nil {
return fmt.Errorf("unrecognized type for Value %q", in)
}
m.Set(fds.ByNumber(2), protoreflect.ValueOfFloat64(f))
}
return nil
case "ListValue":
var jsonArray []json.RawMessage
if err := json.Unmarshal(in, &jsonArray); err != nil {
return fmt.Errorf("bad ListValue: %v", err)
}
lv := m.Mutable(fds.ByNumber(1)).List()
for _, raw := range jsonArray {
ve := lv.NewElement()
if err := u.unmarshalMessage(ve.Message(), raw); err != nil {
return err
}
lv.Append(ve)
}
return nil
case "Struct":
var jsonObject map[string]json.RawMessage
if err := json.Unmarshal(in, &jsonObject); err != nil {
return fmt.Errorf("bad StructValue: %v", err)
}
mv := m.Mutable(fds.ByNumber(1)).Map()
for key, raw := range jsonObject {
kv := protoreflect.ValueOf(key).MapKey()
vv := mv.NewValue()
if err := u.unmarshalMessage(vv.Message(), raw); err != nil {
return fmt.Errorf("bad value in StructValue for key %q: %v", key, err)
}
mv.Set(kv, vv)
}
return nil
}
var jsonObject map[string]json.RawMessage
if err := json.Unmarshal(in, &jsonObject); err != nil {
return err
}
// Handle known fields.
for i := 0; i < fds.Len(); i++ {
fd := fds.Get(i)
if fd.IsWeak() && fd.Message().IsPlaceholder() {
continue // weak reference is not linked in
}
// Search for any raw JSON value associated with this field.
var raw json.RawMessage
name := string(fd.Name())
if fd.Kind() == protoreflect.GroupKind {
name = string(fd.Message().Name())
}
if v, ok := jsonObject[name]; ok {
delete(jsonObject, name)
raw = v
}
name = string(fd.JSONName())
if v, ok := jsonObject[name]; ok {
delete(jsonObject, name)
raw = v
}
field := m.NewField(fd)
// Unmarshal the field value.
if raw == nil || (string(raw) == "null" && !isSingularWellKnownValue(fd) && !isSingularJSONPBUnmarshaler(field, fd)) {
continue
}
v, err := u.unmarshalValue(field, raw, fd)
if err != nil {
return err
}
m.Set(fd, v)
}
// Handle extension fields.
for name, raw := range jsonObject {
if !strings.HasPrefix(name, "[") || !strings.HasSuffix(name, "]") {
continue
}
// Resolve the extension field by name.
xname := protoreflect.FullName(name[len("[") : len(name)-len("]")])
xt, _ := protoregistry.GlobalTypes.FindExtensionByName(xname)
if xt == nil && isMessageSet(md) {
xt, _ = protoregistry.GlobalTypes.FindExtensionByName(xname.Append("message_set_extension"))
}
if xt == nil {
continue
}
delete(jsonObject, name)
fd := xt.TypeDescriptor()
if fd.ContainingMessage().FullName() != m.Descriptor().FullName() {
return fmt.Errorf("extension field %q does not extend message %q", xname, m.Descriptor().FullName())
}
field := m.NewField(fd)
// Unmarshal the field value.
if raw == nil || (string(raw) == "null" && !isSingularWellKnownValue(fd) && !isSingularJSONPBUnmarshaler(field, fd)) {
continue
}
v, err := u.unmarshalValue(field, raw, fd)
if err != nil {
return err
}
m.Set(fd, v)
}
if !u.AllowUnknownFields && len(jsonObject) > 0 {
for name := range jsonObject {
return fmt.Errorf("unknown field %q in %v", name, md.FullName())
}
}
return nil
}
func isSingularWellKnownValue(fd protoreflect.FieldDescriptor) bool {
if md := fd.Message(); md != nil {
return md.FullName() == "google.protobuf.Value" && fd.Cardinality() != protoreflect.Repeated
}
return false
}
func isSingularJSONPBUnmarshaler(v protoreflect.Value, fd protoreflect.FieldDescriptor) bool {
if fd.Message() != nil && fd.Cardinality() != protoreflect.Repeated {
_, ok := proto.MessageV1(v.Interface()).(JSONPBUnmarshaler)
return ok
}
return false
}
func (u *Unmarshaler) unmarshalValue(v protoreflect.Value, in []byte, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
switch {
case fd.IsList():
var jsonArray []json.RawMessage
if err := json.Unmarshal(in, &jsonArray); err != nil {
return v, err
}
lv := v.List()
for _, raw := range jsonArray {
ve, err := u.unmarshalSingularValue(lv.NewElement(), raw, fd)
if err != nil {
return v, err
}
lv.Append(ve)
}
return v, nil
case fd.IsMap():
var jsonObject map[string]json.RawMessage
if err := json.Unmarshal(in, &jsonObject); err != nil {
return v, err
}
kfd := fd.MapKey()
vfd := fd.MapValue()
mv := v.Map()
for key, raw := range jsonObject {
var kv protoreflect.MapKey
if kfd.Kind() == protoreflect.StringKind {
kv = protoreflect.ValueOf(key).MapKey()
} else {
v, err := u.unmarshalSingularValue(kfd.Default(), []byte(key), kfd)
if err != nil {
return v, err
}
kv = v.MapKey()
}
vv, err := u.unmarshalSingularValue(mv.NewValue(), raw, vfd)
if err != nil {
return v, err
}
mv.Set(kv, vv)
}
return v, nil
default:
return u.unmarshalSingularValue(v, in, fd)
}
}
var nonFinite = map[string]float64{
`"NaN"`: math.NaN(),
`"Infinity"`: math.Inf(+1),
`"-Infinity"`: math.Inf(-1),
}
func (u *Unmarshaler) unmarshalSingularValue(v protoreflect.Value, in []byte, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
switch fd.Kind() {
case protoreflect.BoolKind:
return unmarshalValue(in, new(bool))
case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind:
return unmarshalValue(trimQuote(in), new(int32))
case protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
return unmarshalValue(trimQuote(in), new(int64))
case protoreflect.Uint32Kind, protoreflect.Fixed32Kind:
return unmarshalValue(trimQuote(in), new(uint32))
case protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
return unmarshalValue(trimQuote(in), new(uint64))
case protoreflect.FloatKind:
if f, ok := nonFinite[string(in)]; ok {
return protoreflect.ValueOfFloat32(float32(f)), nil
}
return unmarshalValue(trimQuote(in), new(float32))
case protoreflect.DoubleKind:
if f, ok := nonFinite[string(in)]; ok {
return protoreflect.ValueOfFloat64(float64(f)), nil
}
return unmarshalValue(trimQuote(in), new(float64))
case protoreflect.StringKind:
return unmarshalValue(in, new(string))
case protoreflect.BytesKind:
return unmarshalValue(in, new([]byte))
case protoreflect.EnumKind:
if hasPrefixAndSuffix('"', in, '"') {
vd := fd.Enum().Values().ByName(protoreflect.Name(trimQuote(in)))
if vd == nil {
return v, fmt.Errorf("unknown value %q for enum %s", in, fd.Enum().FullName())
}
return protoreflect.ValueOfEnum(vd.Number()), nil
}
return unmarshalValue(in, new(protoreflect.EnumNumber))
case protoreflect.MessageKind, protoreflect.GroupKind:
err := u.unmarshalMessage(v.Message(), in)
return v, err
default:
panic(fmt.Sprintf("invalid kind %v", fd.Kind()))
}
}
func unmarshalValue(in []byte, v interface{}) (protoreflect.Value, error) {
err := json.Unmarshal(in, v)
return protoreflect.ValueOf(reflect.ValueOf(v).Elem().Interface()), err
}
func unquoteString(in string) (out string, err error) {
err = json.Unmarshal([]byte(in), &out)
return out, err
}
func hasPrefixAndSuffix(prefix byte, in []byte, suffix byte) bool {
if len(in) >= 2 && in[0] == prefix && in[len(in)-1] == suffix {
return true
}
return false
}
// trimQuote is like unquoteString but simply strips surrounding quotes.
// This is incorrect, but is behavior done by the legacy implementation.
func trimQuote(in []byte) []byte {
if len(in) >= 2 && in[0] == '"' && in[len(in)-1] == '"' {
in = in[1 : len(in)-1]
}
return in
}

559
vendor/github.com/golang/protobuf/jsonpb/encode.go generated vendored Normal file
View File

@ -0,0 +1,559 @@
// 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.
package jsonpb
import (
"encoding/json"
"errors"
"fmt"
"io"
"math"
"reflect"
"sort"
"strconv"
"strings"
"time"
"github.com/golang/protobuf/proto"
"google.golang.org/protobuf/encoding/protojson"
protoV2 "google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/reflect/protoregistry"
)
const wrapJSONMarshalV2 = false
// Marshaler is a configurable object for marshaling protocol buffer messages
// to the specified JSON representation.
type Marshaler struct {
// OrigName specifies whether to use the original protobuf name for fields.
OrigName bool
// EnumsAsInts specifies whether to render enum values as integers,
// as opposed to string values.
EnumsAsInts bool
// EmitDefaults specifies whether to render fields with zero values.
EmitDefaults bool
// Indent controls whether the output is compact or not.
// If empty, the output is compact JSON. Otherwise, every JSON object
// entry and JSON array value will be on its own line.
// Each line will be preceded by repeated copies of Indent, where the
// number of copies is the current indentation depth.
Indent string
// AnyResolver is used to resolve the google.protobuf.Any well-known type.
// If unset, the global registry is used by default.
AnyResolver AnyResolver
}
// JSONPBMarshaler is implemented by protobuf messages that customize the
// way they are marshaled to JSON. Messages that implement this should also
// implement JSONPBUnmarshaler so that the custom format can be parsed.
//
// The JSON marshaling must follow the proto to JSON specification:
// https://developers.google.com/protocol-buffers/docs/proto3#json
//
// Deprecated: Custom types should implement protobuf reflection instead.
type JSONPBMarshaler interface {
MarshalJSONPB(*Marshaler) ([]byte, error)
}
// Marshal serializes a protobuf message as JSON into w.
func (jm *Marshaler) Marshal(w io.Writer, m proto.Message) error {
b, err := jm.marshal(m)
if len(b) > 0 {
if _, err := w.Write(b); err != nil {
return err
}
}
return err
}
// MarshalToString serializes a protobuf message as JSON in string form.
func (jm *Marshaler) MarshalToString(m proto.Message) (string, error) {
b, err := jm.marshal(m)
if err != nil {
return "", err
}
return string(b), nil
}
func (jm *Marshaler) marshal(m proto.Message) ([]byte, error) {
v := reflect.ValueOf(m)
if m == nil || (v.Kind() == reflect.Ptr && v.IsNil()) {
return nil, errors.New("Marshal called with nil")
}
// Check for custom marshalers first since they may not properly
// implement protobuf reflection that the logic below relies on.
if jsm, ok := m.(JSONPBMarshaler); ok {
return jsm.MarshalJSONPB(jm)
}
if wrapJSONMarshalV2 {
opts := protojson.MarshalOptions{
UseProtoNames: jm.OrigName,
UseEnumNumbers: jm.EnumsAsInts,
EmitUnpopulated: jm.EmitDefaults,
Indent: jm.Indent,
}
if jm.AnyResolver != nil {
opts.Resolver = anyResolver{jm.AnyResolver}
}
return opts.Marshal(proto.MessageReflect(m).Interface())
} else {
// Check for unpopulated required fields first.
m2 := proto.MessageReflect(m)
if err := protoV2.CheckInitialized(m2.Interface()); err != nil {
return nil, err
}
w := jsonWriter{Marshaler: jm}
err := w.marshalMessage(m2, "", "")
return w.buf, err
}
}
type jsonWriter struct {
*Marshaler
buf []byte
}
func (w *jsonWriter) write(s string) {
w.buf = append(w.buf, s...)
}
func (w *jsonWriter) marshalMessage(m protoreflect.Message, indent, typeURL string) error {
if jsm, ok := proto.MessageV1(m.Interface()).(JSONPBMarshaler); ok {
b, err := jsm.MarshalJSONPB(w.Marshaler)
if err != nil {
return err
}
if typeURL != "" {
// we are marshaling this object to an Any type
var js map[string]*json.RawMessage
if err = json.Unmarshal(b, &js); err != nil {
return fmt.Errorf("type %T produced invalid JSON: %v", m.Interface(), err)
}
turl, err := json.Marshal(typeURL)
if err != nil {
return fmt.Errorf("failed to marshal type URL %q to JSON: %v", typeURL, err)
}
js["@type"] = (*json.RawMessage)(&turl)
if b, err = json.Marshal(js); err != nil {
return err
}
}
w.write(string(b))
return nil
}
md := m.Descriptor()
fds := md.Fields()
// Handle well-known types.
const secondInNanos = int64(time.Second / time.Nanosecond)
switch wellKnownType(md.FullName()) {
case "Any":
return w.marshalAny(m, indent)
case "BoolValue", "BytesValue", "StringValue",
"Int32Value", "UInt32Value", "FloatValue",
"Int64Value", "UInt64Value", "DoubleValue":
fd := fds.ByNumber(1)
return w.marshalValue(fd, m.Get(fd), indent)
case "Duration":
const maxSecondsInDuration = 315576000000
// "Generated output always contains 0, 3, 6, or 9 fractional digits,
// depending on required precision."
s := m.Get(fds.ByNumber(1)).Int()
ns := m.Get(fds.ByNumber(2)).Int()
if s < -maxSecondsInDuration || s > maxSecondsInDuration {
return fmt.Errorf("seconds out of range %v", s)
}
if ns <= -secondInNanos || ns >= secondInNanos {
return fmt.Errorf("ns out of range (%v, %v)", -secondInNanos, secondInNanos)
}
if (s > 0 && ns < 0) || (s < 0 && ns > 0) {
return errors.New("signs of seconds and nanos do not match")
}
var sign string
if s < 0 || ns < 0 {
sign, s, ns = "-", -1*s, -1*ns
}
x := fmt.Sprintf("%s%d.%09d", sign, s, ns)
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, ".000")
w.write(fmt.Sprintf(`"%vs"`, x))
return nil
case "Timestamp":
// "RFC 3339, where generated output will always be Z-normalized
// and uses 0, 3, 6 or 9 fractional digits."
s := m.Get(fds.ByNumber(1)).Int()
ns := m.Get(fds.ByNumber(2)).Int()
if ns < 0 || ns >= secondInNanos {
return fmt.Errorf("ns out of range [0, %v)", secondInNanos)
}
t := time.Unix(s, ns).UTC()
// time.RFC3339Nano isn't exactly right (we need to get 3/6/9 fractional digits).
x := t.Format("2006-01-02T15:04:05.000000000")
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, ".000")
w.write(fmt.Sprintf(`"%vZ"`, x))
return nil
case "Value":
// JSON value; which is a null, number, string, bool, object, or array.
od := md.Oneofs().Get(0)
fd := m.WhichOneof(od)
if fd == nil {
return errors.New("nil Value")
}
return w.marshalValue(fd, m.Get(fd), indent)
case "Struct", "ListValue":
// JSON object or array.
fd := fds.ByNumber(1)
return w.marshalValue(fd, m.Get(fd), indent)
}
w.write("{")
if w.Indent != "" {
w.write("\n")
}
firstField := true
if typeURL != "" {
if err := w.marshalTypeURL(indent, typeURL); err != nil {
return err
}
firstField = false
}
for i := 0; i < fds.Len(); {
fd := fds.Get(i)
if od := fd.ContainingOneof(); od != nil {
fd = m.WhichOneof(od)
i += od.Fields().Len()
if fd == nil {
continue
}
} else {
i++
}
v := m.Get(fd)
if !m.Has(fd) {
if !w.EmitDefaults || fd.ContainingOneof() != nil {
continue
}
if fd.Cardinality() != protoreflect.Repeated && (fd.Message() != nil || fd.Syntax() == protoreflect.Proto2) {
v = protoreflect.Value{} // use "null" for singular messages or proto2 scalars
}
}
if !firstField {
w.writeComma()
}
if err := w.marshalField(fd, v, indent); err != nil {
return err
}
firstField = false
}
// Handle proto2 extensions.
if md.ExtensionRanges().Len() > 0 {
// Collect a sorted list of all extension descriptor and values.
type ext struct {
desc protoreflect.FieldDescriptor
val protoreflect.Value
}
var exts []ext
m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
if fd.IsExtension() {
exts = append(exts, ext{fd, v})
}
return true
})
sort.Slice(exts, func(i, j int) bool {
return exts[i].desc.Number() < exts[j].desc.Number()
})
for _, ext := range exts {
if !firstField {
w.writeComma()
}
if err := w.marshalField(ext.desc, ext.val, indent); err != nil {
return err
}
firstField = false
}
}
if w.Indent != "" {
w.write("\n")
w.write(indent)
}
w.write("}")
return nil
}
func (w *jsonWriter) writeComma() {
if w.Indent != "" {
w.write(",\n")
} else {
w.write(",")
}
}
func (w *jsonWriter) marshalAny(m protoreflect.Message, indent string) error {
// "If the Any contains a value that has a special JSON mapping,
// it will be converted as follows: {"@type": xxx, "value": yyy}.
// Otherwise, the value will be converted into a JSON object,
// and the "@type" field will be inserted to indicate the actual data type."
md := m.Descriptor()
typeURL := m.Get(md.Fields().ByNumber(1)).String()
rawVal := m.Get(md.Fields().ByNumber(2)).Bytes()
var m2 protoreflect.Message
if w.AnyResolver != nil {
mi, err := w.AnyResolver.Resolve(typeURL)
if err != nil {
return err
}
m2 = proto.MessageReflect(mi)
} else {
mt, err := protoregistry.GlobalTypes.FindMessageByURL(typeURL)
if err != nil {
return err
}
m2 = mt.New()
}
if err := protoV2.Unmarshal(rawVal, m2.Interface()); err != nil {
return err
}
if wellKnownType(m2.Descriptor().FullName()) == "" {
return w.marshalMessage(m2, indent, typeURL)
}
w.write("{")
if w.Indent != "" {
w.write("\n")
}
if err := w.marshalTypeURL(indent, typeURL); err != nil {
return err
}
w.writeComma()
if w.Indent != "" {
w.write(indent)
w.write(w.Indent)
w.write(`"value": `)
} else {
w.write(`"value":`)
}
if err := w.marshalMessage(m2, indent+w.Indent, ""); err != nil {
return err
}
if w.Indent != "" {
w.write("\n")
w.write(indent)
}
w.write("}")
return nil
}
func (w *jsonWriter) marshalTypeURL(indent, typeURL string) error {
if w.Indent != "" {
w.write(indent)
w.write(w.Indent)
}
w.write(`"@type":`)
if w.Indent != "" {
w.write(" ")
}
b, err := json.Marshal(typeURL)
if err != nil {
return err
}
w.write(string(b))
return nil
}
// marshalField writes field description and value to the Writer.
func (w *jsonWriter) marshalField(fd protoreflect.FieldDescriptor, v protoreflect.Value, indent string) error {
if w.Indent != "" {
w.write(indent)
w.write(w.Indent)
}
w.write(`"`)
switch {
case fd.IsExtension():
// For message set, use the fname of the message as the extension name.
name := string(fd.FullName())
if isMessageSet(fd.ContainingMessage()) {
name = strings.TrimSuffix(name, ".message_set_extension")
}
w.write("[" + name + "]")
case w.OrigName:
name := string(fd.Name())
if fd.Kind() == protoreflect.GroupKind {
name = string(fd.Message().Name())
}
w.write(name)
default:
w.write(string(fd.JSONName()))
}
w.write(`":`)
if w.Indent != "" {
w.write(" ")
}
return w.marshalValue(fd, v, indent)
}
func (w *jsonWriter) marshalValue(fd protoreflect.FieldDescriptor, v protoreflect.Value, indent string) error {
switch {
case fd.IsList():
w.write("[")
comma := ""
lv := v.List()
for i := 0; i < lv.Len(); i++ {
w.write(comma)
if w.Indent != "" {
w.write("\n")
w.write(indent)
w.write(w.Indent)
w.write(w.Indent)
}
if err := w.marshalSingularValue(fd, lv.Get(i), indent+w.Indent); err != nil {
return err
}
comma = ","
}
if w.Indent != "" {
w.write("\n")
w.write(indent)
w.write(w.Indent)
}
w.write("]")
return nil
case fd.IsMap():
kfd := fd.MapKey()
vfd := fd.MapValue()
mv := v.Map()
// Collect a sorted list of all map keys and values.
type entry struct{ key, val protoreflect.Value }
var entries []entry
mv.Range(func(k protoreflect.MapKey, v protoreflect.Value) bool {
entries = append(entries, entry{k.Value(), v})
return true
})
sort.Slice(entries, func(i, j int) bool {
switch kfd.Kind() {
case protoreflect.BoolKind:
return !entries[i].key.Bool() && entries[j].key.Bool()
case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind, protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
return entries[i].key.Int() < entries[j].key.Int()
case protoreflect.Uint32Kind, protoreflect.Fixed32Kind, protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
return entries[i].key.Uint() < entries[j].key.Uint()
case protoreflect.StringKind:
return entries[i].key.String() < entries[j].key.String()
default:
panic("invalid kind")
}
})
w.write(`{`)
comma := ""
for _, entry := range entries {
w.write(comma)
if w.Indent != "" {
w.write("\n")
w.write(indent)
w.write(w.Indent)
w.write(w.Indent)
}
s := fmt.Sprint(entry.key.Interface())
b, err := json.Marshal(s)
if err != nil {
return err
}
w.write(string(b))
w.write(`:`)
if w.Indent != "" {
w.write(` `)
}
if err := w.marshalSingularValue(vfd, entry.val, indent+w.Indent); err != nil {
return err
}
comma = ","
}
if w.Indent != "" {
w.write("\n")
w.write(indent)
w.write(w.Indent)
}
w.write(`}`)
return nil
default:
return w.marshalSingularValue(fd, v, indent)
}
}
func (w *jsonWriter) marshalSingularValue(fd protoreflect.FieldDescriptor, v protoreflect.Value, indent string) error {
switch {
case !v.IsValid():
w.write("null")
return nil
case fd.Message() != nil:
return w.marshalMessage(v.Message(), indent+w.Indent, "")
case fd.Enum() != nil:
if fd.Enum().FullName() == "google.protobuf.NullValue" {
w.write("null")
return nil
}
vd := fd.Enum().Values().ByNumber(v.Enum())
if vd == nil || w.EnumsAsInts {
w.write(strconv.Itoa(int(v.Enum())))
} else {
w.write(`"` + string(vd.Name()) + `"`)
}
return nil
default:
switch v.Interface().(type) {
case float32, float64:
switch {
case math.IsInf(v.Float(), +1):
w.write(`"Infinity"`)
return nil
case math.IsInf(v.Float(), -1):
w.write(`"-Infinity"`)
return nil
case math.IsNaN(v.Float()):
w.write(`"NaN"`)
return nil
}
case int64, uint64:
w.write(fmt.Sprintf(`"%d"`, v.Interface()))
return nil
}
b, err := json.Marshal(v.Interface())
if err != nil {
return err
}
w.write(string(b))
return nil
}
}

69
vendor/github.com/golang/protobuf/jsonpb/json.go generated vendored Normal file
View File

@ -0,0 +1,69 @@
// 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.
// Package jsonpb provides functionality to marshal and unmarshal between a
// protocol buffer message and JSON. It follows the specification at
// https://developers.google.com/protocol-buffers/docs/proto3#json.
//
// Do not rely on the default behavior of the standard encoding/json package
// when called on generated message types as it does not operate correctly.
//
// Deprecated: Use the "google.golang.org/protobuf/encoding/protojson"
// package instead.
package jsonpb
import (
"github.com/golang/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/reflect/protoregistry"
"google.golang.org/protobuf/runtime/protoimpl"
)
// AnyResolver takes a type URL, present in an Any message,
// and resolves it into an instance of the associated message.
type AnyResolver interface {
Resolve(typeURL string) (proto.Message, error)
}
type anyResolver struct{ AnyResolver }
func (r anyResolver) FindMessageByName(message protoreflect.FullName) (protoreflect.MessageType, error) {
return r.FindMessageByURL(string(message))
}
func (r anyResolver) FindMessageByURL(url string) (protoreflect.MessageType, error) {
m, err := r.Resolve(url)
if err != nil {
return nil, err
}
return protoimpl.X.MessageTypeOf(m), nil
}
func (r anyResolver) FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error) {
return protoregistry.GlobalTypes.FindExtensionByName(field)
}
func (r anyResolver) FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error) {
return protoregistry.GlobalTypes.FindExtensionByNumber(message, field)
}
func wellKnownType(s protoreflect.FullName) string {
if s.Parent() == "google.protobuf" {
switch s.Name() {
case "Empty", "Any",
"BoolValue", "BytesValue", "StringValue",
"Int32Value", "UInt32Value", "FloatValue",
"Int64Value", "UInt64Value", "DoubleValue",
"Duration", "Timestamp",
"NullValue", "Struct", "Value", "ListValue":
return string(s.Name())
}
}
return ""
}
func isMessageSet(md protoreflect.MessageDescriptor) bool {
ms, ok := md.(interface{ IsMessageSet() bool })
return ok && ms.IsMessageSet()
}

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

@ -27,6 +27,7 @@ import (
"net"
"strings"
"google.golang.org/grpc/channelz"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal"
@ -192,7 +193,7 @@ type BuildOptions struct {
// server can ignore this field.
Authority string
// ChannelzParentID is the parent ClientConn's channelz ID.
ChannelzParentID int64
ChannelzParentID *channelz.Identifier
// CustomUserAgent is the custom user agent set on the parent ClientConn.
// The balancer should set the same custom user agent if it creates a
// ClientConn.

326
vendor/google.golang.org/grpc/balancer_conn_wrappers.go generated vendored
View File

@ -20,130 +20,178 @@ package grpc
import (
"fmt"
"strings"
"sync"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/internal/balancer/gracefulswitch"
"google.golang.org/grpc/internal/buffer"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/resolver"
)
// scStateUpdate contains the subConn and the new state it changed to.
// ccBalancerWrapper sits between the ClientConn and the Balancer.
//
// ccBalancerWrapper implements methods corresponding to the ones on the
// balancer.Balancer interface. The ClientConn is free to call these methods
// concurrently and the ccBalancerWrapper ensures that calls from the ClientConn
// to the Balancer happen synchronously and in order.
//
// ccBalancerWrapper also implements the balancer.ClientConn interface and is
// passed to the Balancer implementations. It invokes unexported methods on the
// ClientConn to handle these calls from the Balancer.
//
// It uses the gracefulswitch.Balancer internally to ensure that balancer
// switches happen in a graceful manner.
type ccBalancerWrapper struct {
cc *ClientConn
// Since these fields are accessed only from handleXxx() methods which are
// synchronized by the watcher goroutine, we do not need a mutex to protect
// these fields.
balancer *gracefulswitch.Balancer
curBalancerName string
updateCh *buffer.Unbounded // Updates written on this channel are processed by watcher().
resultCh *buffer.Unbounded // Results of calls to UpdateClientConnState() are pushed here.
closed *grpcsync.Event // Indicates if close has been called.
done *grpcsync.Event // Indicates if close has completed its work.
}
// newCCBalancerWrapper creates a new balancer wrapper. The underlying balancer
// is not created until the switchTo() method is invoked.
func newCCBalancerWrapper(cc *ClientConn, bopts balancer.BuildOptions) *ccBalancerWrapper {
ccb := &ccBalancerWrapper{
cc: cc,
updateCh: buffer.NewUnbounded(),
resultCh: buffer.NewUnbounded(),
closed: grpcsync.NewEvent(),
done: grpcsync.NewEvent(),
}
go ccb.watcher()
ccb.balancer = gracefulswitch.NewBalancer(ccb, bopts)
return ccb
}
// The following xxxUpdate structs wrap the arguments received as part of the
// corresponding update. The watcher goroutine uses the 'type' of the update to
// invoke the appropriate handler routine to handle the update.
type ccStateUpdate struct {
ccs *balancer.ClientConnState
}
type scStateUpdate struct {
sc balancer.SubConn
state connectivity.State
err error
}
// exitIdle contains no data and is just a signal sent on the updateCh in
// ccBalancerWrapper to instruct the balancer to exit idle.
type exitIdle struct{}
type exitIdleUpdate struct{}
// ccBalancerWrapper is a wrapper on top of cc for balancers.
// It implements balancer.ClientConn interface.
type ccBalancerWrapper struct {
cc *ClientConn
balancerMu sync.Mutex // synchronizes calls to the balancer
balancer balancer.Balancer
hasExitIdle bool
updateCh *buffer.Unbounded
closed *grpcsync.Event
done *grpcsync.Event
mu sync.Mutex
subConns map[*acBalancerWrapper]struct{}
type resolverErrorUpdate struct {
err error
}
func newCCBalancerWrapper(cc *ClientConn, b balancer.Builder, bopts balancer.BuildOptions) *ccBalancerWrapper {
ccb := &ccBalancerWrapper{
cc: cc,
updateCh: buffer.NewUnbounded(),
closed: grpcsync.NewEvent(),
done: grpcsync.NewEvent(),
subConns: make(map[*acBalancerWrapper]struct{}),
}
go ccb.watcher()
ccb.balancer = b.Build(ccb, bopts)
_, ccb.hasExitIdle = ccb.balancer.(balancer.ExitIdler)
return ccb
type switchToUpdate struct {
name string
}
// watcher balancer functions sequentially, so the balancer can be implemented
// lock-free.
type subConnUpdate struct {
acbw *acBalancerWrapper
}
// watcher is a long-running goroutine which reads updates from a channel and
// invokes corresponding methods on the underlying balancer. It ensures that
// these methods are invoked in a synchronous fashion. It also ensures that
// these methods are invoked in the order in which the updates were received.
func (ccb *ccBalancerWrapper) watcher() {
for {
select {
case t := <-ccb.updateCh.Get():
case u := <-ccb.updateCh.Get():
ccb.updateCh.Load()
if ccb.closed.HasFired() {
break
}
switch u := t.(type) {
switch update := u.(type) {
case *ccStateUpdate:
ccb.handleClientConnStateChange(update.ccs)
case *scStateUpdate:
ccb.balancerMu.Lock()
ccb.balancer.UpdateSubConnState(u.sc, balancer.SubConnState{ConnectivityState: u.state, ConnectionError: u.err})
ccb.balancerMu.Unlock()
case *acBalancerWrapper:
ccb.mu.Lock()
if ccb.subConns != nil {
delete(ccb.subConns, u)
ccb.cc.removeAddrConn(u.getAddrConn(), errConnDrain)
}
ccb.mu.Unlock()
case exitIdle:
if ccb.cc.GetState() == connectivity.Idle {
if ei, ok := ccb.balancer.(balancer.ExitIdler); ok {
// We already checked that the balancer implements
// ExitIdle before pushing the event to updateCh, but
// check conditionally again as defensive programming.
ccb.balancerMu.Lock()
ei.ExitIdle()
ccb.balancerMu.Unlock()
}
}
ccb.handleSubConnStateChange(update)
case *exitIdleUpdate:
ccb.handleExitIdle()
case *resolverErrorUpdate:
ccb.handleResolverError(update.err)
case *switchToUpdate:
ccb.handleSwitchTo(update.name)
case *subConnUpdate:
ccb.handleRemoveSubConn(update.acbw)
default:
logger.Errorf("ccBalancerWrapper.watcher: unknown update %+v, type %T", t, t)
logger.Errorf("ccBalancerWrapper.watcher: unknown update %+v, type %T", update, update)
}
case <-ccb.closed.Done():
}
if ccb.closed.HasFired() {
ccb.balancerMu.Lock()
ccb.balancer.Close()
ccb.balancerMu.Unlock()
ccb.mu.Lock()
scs := ccb.subConns
ccb.subConns = nil
ccb.mu.Unlock()
ccb.UpdateState(balancer.State{ConnectivityState: connectivity.Connecting, Picker: nil})
ccb.done.Fire()
// Fire done before removing the addr conns. We can safely unblock
// ccb.close and allow the removeAddrConns to happen
// asynchronously.
for acbw := range scs {
ccb.cc.removeAddrConn(acbw.getAddrConn(), errConnDrain)
}
ccb.handleClose()
return
}
}
}
func (ccb *ccBalancerWrapper) close() {
ccb.closed.Fire()
<-ccb.done.Done()
}
// updateClientConnState is invoked by grpc to push a ClientConnState update to
// the underlying balancer.
//
// Unlike other methods invoked by grpc to push updates to the underlying
// balancer, this method cannot simply push the update onto the update channel
// and return. It needs to return the error returned by the underlying balancer
// back to grpc which propagates that to the resolver.
func (ccb *ccBalancerWrapper) updateClientConnState(ccs *balancer.ClientConnState) error {
ccb.updateCh.Put(&ccStateUpdate{ccs: ccs})
func (ccb *ccBalancerWrapper) exitIdle() bool {
if !ccb.hasExitIdle {
return false
var res interface{}
select {
case res = <-ccb.resultCh.Get():
ccb.resultCh.Load()
case <-ccb.closed.Done():
// Return early if the balancer wrapper is closed while we are waiting for
// the underlying balancer to process a ClientConnState update.
return nil
}
ccb.updateCh.Put(exitIdle{})
return true
// If the returned error is nil, attempting to type assert to error leads to
// panic. So, this needs to handled separately.
if res == nil {
return nil
}
return res.(error)
}
func (ccb *ccBalancerWrapper) handleSubConnStateChange(sc balancer.SubConn, s connectivity.State, err error) {
// handleClientConnStateChange handles a ClientConnState update from the update
// channel and invokes the appropriate method on the underlying balancer.
//
// If the addresses specified in the update contain addresses of type "grpclb"
// and the selected LB policy is not "grpclb", these addresses will be filtered
// out and ccs will be modified with the updated address list.
func (ccb *ccBalancerWrapper) handleClientConnStateChange(ccs *balancer.ClientConnState) {
if ccb.curBalancerName != grpclbName {
// Filter any grpclb addresses since we don't have the grpclb balancer.
var addrs []resolver.Address
for _, addr := range ccs.ResolverState.Addresses {
if addr.Type == resolver.GRPCLB {
continue
}
addrs = append(addrs, addr)
}
ccs.ResolverState.Addresses = addrs
}
ccb.resultCh.Put(ccb.balancer.UpdateClientConnState(*ccs))
}
// updateSubConnState is invoked by grpc to push a subConn state update to the
// underlying balancer.
func (ccb *ccBalancerWrapper) updateSubConnState(sc balancer.SubConn, s connectivity.State, err error) {
// When updating addresses for a SubConn, if the address in use is not in
// the new addresses, the old ac will be tearDown() and a new ac will be
// created. tearDown() generates a state change with Shutdown state, we
@ -161,44 +209,125 @@ func (ccb *ccBalancerWrapper) handleSubConnStateChange(sc balancer.SubConn, s co
})
}
func (ccb *ccBalancerWrapper) updateClientConnState(ccs *balancer.ClientConnState) error {
ccb.balancerMu.Lock()
defer ccb.balancerMu.Unlock()
return ccb.balancer.UpdateClientConnState(*ccs)
// handleSubConnStateChange handles a SubConnState update from the update
// channel and invokes the appropriate method on the underlying balancer.
func (ccb *ccBalancerWrapper) handleSubConnStateChange(update *scStateUpdate) {
ccb.balancer.UpdateSubConnState(update.sc, balancer.SubConnState{ConnectivityState: update.state, ConnectionError: update.err})
}
func (ccb *ccBalancerWrapper) exitIdle() {
ccb.updateCh.Put(&exitIdleUpdate{})
}
func (ccb *ccBalancerWrapper) handleExitIdle() {
if ccb.cc.GetState() != connectivity.Idle {
return
}
ccb.balancer.ExitIdle()
}
func (ccb *ccBalancerWrapper) resolverError(err error) {
ccb.balancerMu.Lock()
defer ccb.balancerMu.Unlock()
ccb.updateCh.Put(&resolverErrorUpdate{err: err})
}
func (ccb *ccBalancerWrapper) handleResolverError(err error) {
ccb.balancer.ResolverError(err)
}
// switchTo is invoked by grpc to instruct the balancer wrapper to switch to the
// LB policy identified by name.
//
// ClientConn calls newCCBalancerWrapper() at creation time. Upon receipt of the
// first good update from the name resolver, it determines the LB policy to use
// and invokes the switchTo() method. Upon receipt of every subsequent update
// from the name resolver, it invokes this method.
//
// the ccBalancerWrapper keeps track of the current LB policy name, and skips
// the graceful balancer switching process if the name does not change.
func (ccb *ccBalancerWrapper) switchTo(name string) {
ccb.updateCh.Put(&switchToUpdate{name: name})
}
// handleSwitchTo handles a balancer switch update from the update channel. It
// calls the SwitchTo() method on the gracefulswitch.Balancer with a
// balancer.Builder corresponding to name. If no balancer.Builder is registered
// for the given name, it uses the default LB policy which is "pick_first".
func (ccb *ccBalancerWrapper) handleSwitchTo(name string) {
// TODO: Other languages use case-insensitive balancer registries. We should
// switch as well. See: https://github.com/grpc/grpc-go/issues/5288.
if strings.EqualFold(ccb.curBalancerName, name) {
return
}
// TODO: Ensure that name is a registered LB policy when we get here.
// We currently only validate the `loadBalancingConfig` field. We need to do
// the same for the `loadBalancingPolicy` field and reject the service config
// if the specified policy is not registered.
builder := balancer.Get(name)
if builder == nil {
channelz.Warningf(logger, ccb.cc.channelzID, "Channel switches to new LB policy %q, since the specified LB policy %q was not registered", PickFirstBalancerName, name)
builder = newPickfirstBuilder()
} else {
channelz.Infof(logger, ccb.cc.channelzID, "Channel switches to new LB policy %q", name)
}
if err := ccb.balancer.SwitchTo(builder); err != nil {
channelz.Errorf(logger, ccb.cc.channelzID, "Channel failed to build new LB policy %q: %v", name, err)
return
}
ccb.curBalancerName = builder.Name()
}
// handleRemoveSucConn handles a request from the underlying balancer to remove
// a subConn.
//
// See comments in RemoveSubConn() for more details.
func (ccb *ccBalancerWrapper) handleRemoveSubConn(acbw *acBalancerWrapper) {
ccb.cc.removeAddrConn(acbw.getAddrConn(), errConnDrain)
}
func (ccb *ccBalancerWrapper) close() {
ccb.closed.Fire()
<-ccb.done.Done()
}
func (ccb *ccBalancerWrapper) handleClose() {
ccb.balancer.Close()
ccb.done.Fire()
}
func (ccb *ccBalancerWrapper) NewSubConn(addrs []resolver.Address, opts balancer.NewSubConnOptions) (balancer.SubConn, error) {
if len(addrs) <= 0 {
return nil, fmt.Errorf("grpc: cannot create SubConn with empty address list")
}
ccb.mu.Lock()
defer ccb.mu.Unlock()
if ccb.subConns == nil {
return nil, fmt.Errorf("grpc: ClientConn balancer wrapper was closed")
}
ac, err := ccb.cc.newAddrConn(addrs, opts)
if err != nil {
channelz.Warningf(logger, ccb.cc.channelzID, "acBalancerWrapper: NewSubConn: failed to newAddrConn: %v", err)
return nil, err
}
acbw := &acBalancerWrapper{ac: ac}
acbw.ac.mu.Lock()
ac.acbw = acbw
acbw.ac.mu.Unlock()
ccb.subConns[acbw] = struct{}{}
return acbw, nil
}
func (ccb *ccBalancerWrapper) RemoveSubConn(sc balancer.SubConn) {
// The RemoveSubConn() is handled in the run() goroutine, to avoid deadlock
// during switchBalancer() if the old balancer calls RemoveSubConn() in its
// Close().
ccb.updateCh.Put(sc)
// Before we switched the ccBalancerWrapper to use gracefulswitch.Balancer, it
// was required to handle the RemoveSubConn() method asynchronously by pushing
// the update onto the update channel. This was done to avoid a deadlock as
// switchBalancer() was holding cc.mu when calling Close() on the old
// balancer, which would in turn call RemoveSubConn().
//
// With the use of gracefulswitch.Balancer in ccBalancerWrapper, handling this
// asynchronously is probably not required anymore since the switchTo() method
// handles the balancer switch by pushing the update onto the channel.
// TODO(easwars): Handle this inline.
acbw, ok := sc.(*acBalancerWrapper)
if !ok {
return
}
ccb.updateCh.Put(&subConnUpdate{acbw: acbw})
}
func (ccb *ccBalancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resolver.Address) {
@ -210,11 +339,6 @@ func (ccb *ccBalancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resol
}
func (ccb *ccBalancerWrapper) UpdateState(s balancer.State) {
ccb.mu.Lock()
defer ccb.mu.Unlock()
if ccb.subConns == nil {
return
}
// Update picker before updating state. Even though the ordering here does
// not matter, it can lead to multiple calls of Pick in the common start-up
// case where we wait for ready and then perform an RPC. If the picker is

36
vendor/google.golang.org/grpc/channelz/channelz.go generated vendored Normal file
View File

@ -0,0 +1,36 @@
/*
*
* Copyright 2020 gRPC authors.
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*
*/
// Package channelz exports internals of the channelz implementation as required
// by other gRPC packages.
//
// The implementation of the channelz spec as defined in
// https://github.com/grpc/proposal/blob/master/A14-channelz.md, is provided by
// the `internal/channelz` package.
//
// Experimental
//
// Notice: All APIs in this package are experimental and may be removed in a
// later release.
package channelz
import "google.golang.org/grpc/internal/channelz"
// Identifier is an opaque identifier which uniquely identifies an entity in the
// channelz database.
type Identifier = channelz.Identifier

270
vendor/google.golang.org/grpc/clientconn.go generated vendored
View File

@ -159,23 +159,20 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
}
}()
if channelz.IsOn() {
if cc.dopts.channelzParentID != 0 {
cc.channelzID = channelz.RegisterChannel(&channelzChannel{cc}, cc.dopts.channelzParentID, target)
channelz.AddTraceEvent(logger, cc.channelzID, 0, &channelz.TraceEventDesc{
Desc: "Channel Created",
pid := cc.dopts.channelzParentID
cc.channelzID = channelz.RegisterChannel(&channelzChannel{cc}, pid, target)
ted := &channelz.TraceEventDesc{
Desc: "Channel created",
Severity: channelz.CtInfo,
Parent: &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested Channel(id:%d) created", cc.channelzID),
Severity: channelz.CtInfo,
},
})
} else {
cc.channelzID = channelz.RegisterChannel(&channelzChannel{cc}, 0, target)
channelz.Info(logger, cc.channelzID, "Channel Created")
}
if cc.dopts.channelzParentID != nil {
ted.Parent = &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested Channel(id:%d) created", cc.channelzID.Int()),
Severity: channelz.CtInfo,
}
}
channelz.AddTraceEvent(logger, cc.channelzID, 1, ted)
cc.csMgr.channelzID = cc.channelzID
}
if cc.dopts.copts.TransportCredentials == nil && cc.dopts.copts.CredsBundle == nil {
return nil, errNoTransportSecurity
@ -281,7 +278,7 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
if creds := cc.dopts.copts.TransportCredentials; creds != nil {
credsClone = creds.Clone()
}
cc.balancerBuildOpts = balancer.BuildOptions{
cc.balancerWrapper = newCCBalancerWrapper(cc, balancer.BuildOptions{
DialCreds: credsClone,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
@ -289,7 +286,7 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
CustomUserAgent: cc.dopts.copts.UserAgent,
ChannelzParentID: cc.channelzID,
Target: cc.parsedTarget,
}
})
// Build the resolver.
rWrapper, err := newCCResolverWrapper(cc, resolverBuilder)
@ -398,7 +395,7 @@ type connectivityStateManager struct {
mu sync.Mutex
state connectivity.State
notifyChan chan struct{}
channelzID int64
channelzID *channelz.Identifier
}
// updateState updates the connectivity.State of ClientConn.
@ -464,34 +461,36 @@ var _ ClientConnInterface = (*ClientConn)(nil)
// handshakes. It also handles errors on established connections by
// re-resolving the name and reconnecting.
type ClientConn struct {
ctx context.Context
cancel context.CancelFunc
ctx context.Context // Initialized using the background context at dial time.
cancel context.CancelFunc // Cancelled on close.
target string
parsedTarget resolver.Target
authority string
dopts dialOptions
// The following are initialized at dial time, and are read-only after that.
target string // User's dial target.
parsedTarget resolver.Target // See parseTargetAndFindResolver().
authority string // See determineAuthority().
dopts dialOptions // Default and user specified dial options.
channelzID *channelz.Identifier // Channelz identifier for the channel.
balancerWrapper *ccBalancerWrapper // Uses gracefulswitch.balancer underneath.
// The following provide their own synchronization, and therefore don't
// require cc.mu to be held to access them.
csMgr *connectivityStateManager
balancerBuildOpts balancer.BuildOptions
blockingpicker *pickerWrapper
safeConfigSelector iresolver.SafeConfigSelector
czData *channelzData
retryThrottler atomic.Value // Updated from service config.
mu sync.RWMutex
resolverWrapper *ccResolverWrapper
sc *ServiceConfig
conns map[*addrConn]struct{}
// Keepalive parameter can be updated if a GoAway is received.
mkp keepalive.ClientParameters
curBalancerName string
balancerWrapper *ccBalancerWrapper
retryThrottler atomic.Value
// firstResolveEvent is used to track whether the name resolver sent us at
// least one update. RPCs block on this event.
firstResolveEvent *grpcsync.Event
channelzID int64 // channelz unique identification number
czData *channelzData
// mu protects the following fields.
// TODO: split mu so the same mutex isn't used for everything.
mu sync.RWMutex
resolverWrapper *ccResolverWrapper // Initialized in Dial; cleared in Close.
sc *ServiceConfig // Latest service config received from the resolver.
conns map[*addrConn]struct{} // Set to nil on close.
mkp keepalive.ClientParameters // May be updated upon receipt of a GoAway.
lceMu sync.Mutex // protects lastConnectionError
lastConnectionError error
@ -536,14 +535,7 @@ func (cc *ClientConn) GetState() connectivity.State {
// Notice: This API is EXPERIMENTAL and may be changed or removed in a later
// release.
func (cc *ClientConn) Connect() {
cc.mu.Lock()
defer cc.mu.Unlock()
if cc.balancerWrapper != nil && cc.balancerWrapper.exitIdle() {
return
}
for ac := range cc.conns {
go ac.connect()
}
cc.balancerWrapper.exitIdle()
}
func (cc *ClientConn) scWatcher() {
@ -623,9 +615,7 @@ func (cc *ClientConn) updateResolverState(s resolver.State, err error) error {
// with the new addresses.
cc.maybeApplyDefaultServiceConfig(nil)
if cc.balancerWrapper != nil {
cc.balancerWrapper.resolverError(err)
}
// No addresses are valid with err set; return early.
cc.mu.Unlock()
@ -653,16 +643,10 @@ func (cc *ClientConn) updateResolverState(s resolver.State, err error) error {
cc.applyServiceConfigAndBalancer(sc, configSelector, s.Addresses)
} else {
ret = balancer.ErrBadResolverState
if cc.balancerWrapper == nil {
var err error
if s.ServiceConfig.Err != nil {
err = status.Errorf(codes.Unavailable, "error parsing service config: %v", s.ServiceConfig.Err)
} else {
err = status.Errorf(codes.Unavailable, "illegal service config type: %T", s.ServiceConfig.Config)
}
cc.safeConfigSelector.UpdateConfigSelector(&defaultConfigSelector{cc.sc})
cc.blockingpicker.updatePicker(base.NewErrPicker(err))
cc.csMgr.updateState(connectivity.TransientFailure)
if cc.sc == nil {
// Apply the failing LB only if we haven't received valid service config
// from the name resolver in the past.
cc.applyFailingLB(s.ServiceConfig)
cc.mu.Unlock()
return ret
}
@ -670,24 +654,12 @@ func (cc *ClientConn) updateResolverState(s resolver.State, err error) error {
}
var balCfg serviceconfig.LoadBalancingConfig
if cc.dopts.balancerBuilder == nil && cc.sc != nil && cc.sc.lbConfig != nil {
if cc.sc != nil && cc.sc.lbConfig != nil {
balCfg = cc.sc.lbConfig.cfg
}
cbn := cc.curBalancerName
bw := cc.balancerWrapper
cc.mu.Unlock()
if cbn != grpclbName {
// Filter any grpclb addresses since we don't have the grpclb balancer.
for i := 0; i < len(s.Addresses); {
if s.Addresses[i].Type == resolver.GRPCLB {
copy(s.Addresses[i:], s.Addresses[i+1:])
s.Addresses = s.Addresses[:len(s.Addresses)-1]
continue
}
i++
}
}
uccsErr := bw.updateClientConnState(&balancer.ClientConnState{ResolverState: s, BalancerConfig: balCfg})
if ret == nil {
ret = uccsErr // prefer ErrBadResolver state since any other error is
@ -696,56 +668,28 @@ func (cc *ClientConn) updateResolverState(s resolver.State, err error) error {
return ret
}
// switchBalancer starts the switching from current balancer to the balancer
// with the given name.
//
// It will NOT send the current address list to the new balancer. If needed,
// caller of this function should send address list to the new balancer after
// this function returns.
// applyFailingLB is akin to configuring an LB policy on the channel which
// always fails RPCs. Here, an actual LB policy is not configured, but an always
// erroring picker is configured, which returns errors with information about
// what was invalid in the received service config. A config selector with no
// service config is configured, and the connectivity state of the channel is
// set to TransientFailure.
//
// Caller must hold cc.mu.
func (cc *ClientConn) switchBalancer(name string) {
if strings.EqualFold(cc.curBalancerName, name) {
return
}
channelz.Infof(logger, cc.channelzID, "ClientConn switching balancer to %q", name)
if cc.dopts.balancerBuilder != nil {
channelz.Info(logger, cc.channelzID, "ignoring balancer switching: Balancer DialOption used instead")
return
}
if cc.balancerWrapper != nil {
// Don't hold cc.mu while closing the balancers. The balancers may call
// methods that require cc.mu (e.g. cc.NewSubConn()). Holding the mutex
// would cause a deadlock in that case.
cc.mu.Unlock()
cc.balancerWrapper.close()
cc.mu.Lock()
}
builder := balancer.Get(name)
if builder == nil {
channelz.Warningf(logger, cc.channelzID, "Channel switches to new LB policy %q due to fallback from invalid balancer name", PickFirstBalancerName)
channelz.Infof(logger, cc.channelzID, "failed to get balancer builder for: %v, using pick_first instead", name)
builder = newPickfirstBuilder()
func (cc *ClientConn) applyFailingLB(sc *serviceconfig.ParseResult) {
var err error
if sc.Err != nil {
err = status.Errorf(codes.Unavailable, "error parsing service config: %v", sc.Err)
} else {
channelz.Infof(logger, cc.channelzID, "Channel switches to new LB policy %q", name)
err = status.Errorf(codes.Unavailable, "illegal service config type: %T", sc.Config)
}
cc.curBalancerName = builder.Name()
cc.balancerWrapper = newCCBalancerWrapper(cc, builder, cc.balancerBuildOpts)
cc.safeConfigSelector.UpdateConfigSelector(&defaultConfigSelector{nil})
cc.blockingpicker.updatePicker(base.NewErrPicker(err))
cc.csMgr.updateState(connectivity.TransientFailure)
}
func (cc *ClientConn) handleSubConnStateChange(sc balancer.SubConn, s connectivity.State, err error) {
cc.mu.Lock()
if cc.conns == nil {
cc.mu.Unlock()
return
}
// TODO(bar switching) send updates to all balancer wrappers when balancer
// gracefully switching is supported.
cc.balancerWrapper.handleSubConnStateChange(sc, s, err)
cc.mu.Unlock()
cc.balancerWrapper.updateSubConnState(sc, s, err)
}
// newAddrConn creates an addrConn for addrs and adds it to cc.conns.
@ -768,17 +712,21 @@ func (cc *ClientConn) newAddrConn(addrs []resolver.Address, opts balancer.NewSub
cc.mu.Unlock()
return nil, ErrClientConnClosing
}
if channelz.IsOn() {
ac.channelzID = channelz.RegisterSubChannel(ac, cc.channelzID, "")
var err error
ac.channelzID, err = channelz.RegisterSubChannel(ac, cc.channelzID, "")
if err != nil {
return nil, err
}
channelz.AddTraceEvent(logger, ac.channelzID, 0, &channelz.TraceEventDesc{
Desc: "Subchannel Created",
Desc: "Subchannel created",
Severity: channelz.CtInfo,
Parent: &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Subchannel(id:%d) created", ac.channelzID),
Desc: fmt.Sprintf("Subchannel(id:%d) created", ac.channelzID.Int()),
Severity: channelz.CtInfo,
},
})
}
cc.conns[ac] = struct{}{}
cc.mu.Unlock()
return ac, nil
@ -853,16 +801,31 @@ func (ac *addrConn) connect() error {
return nil
}
func equalAddresses(a, b []resolver.Address) bool {
if len(a) != len(b) {
return false
}
for i, v := range a {
if !v.Equal(b[i]) {
return false
}
}
return true
}
// tryUpdateAddrs tries to update ac.addrs with the new addresses list.
//
// If ac is Connecting, it returns false. The caller should tear down the ac and
// create a new one. Note that the backoff will be reset when this happens.
//
// If ac is TransientFailure, it updates ac.addrs and returns true. The updated
// addresses will be picked up by retry in the next iteration after backoff.
//
// If ac is Shutdown or Idle, it updates ac.addrs and returns true.
//
// If the addresses is the same as the old list, it does nothing and returns
// true.
//
// If ac is Connecting, it returns false. The caller should tear down the ac and
// create a new one. Note that the backoff will be reset when this happens.
//
// If ac is Ready, it checks whether current connected address of ac is in the
// new addrs list.
// - If true, it updates ac.addrs and returns true. The ac will keep using
@ -879,6 +842,10 @@ func (ac *addrConn) tryUpdateAddrs(addrs []resolver.Address) bool {
return true
}
if equalAddresses(ac.addrs, addrs) {
return true
}
if ac.state == connectivity.Connecting {
return false
}
@ -959,14 +926,10 @@ func (cc *ClientConn) healthCheckConfig() *healthCheckConfig {
}
func (cc *ClientConn) getTransport(ctx context.Context, failfast bool, method string) (transport.ClientTransport, func(balancer.DoneInfo), error) {
t, done, err := cc.blockingpicker.pick(ctx, failfast, balancer.PickInfo{
return cc.blockingpicker.pick(ctx, failfast, balancer.PickInfo{
Ctx: ctx,
FullMethodName: method,
})
if err != nil {
return nil, nil, toRPCErr(err)
}
return t, done, nil
}
func (cc *ClientConn) applyServiceConfigAndBalancer(sc *ServiceConfig, configSelector iresolver.ConfigSelector, addrs []resolver.Address) {
@ -991,9 +954,6 @@ func (cc *ClientConn) applyServiceConfigAndBalancer(sc *ServiceConfig, configSel
cc.retryThrottler.Store((*retryThrottler)(nil))
}
if cc.dopts.balancerBuilder == nil {
// Only look at balancer types and switch balancer if balancer dial
// option is not set.
var newBalancerName string
if cc.sc != nil && cc.sc.lbConfig != nil {
newBalancerName = cc.sc.lbConfig.name
@ -1013,13 +973,7 @@ func (cc *ClientConn) applyServiceConfigAndBalancer(sc *ServiceConfig, configSel
newBalancerName = PickFirstBalancerName
}
}
cc.switchBalancer(newBalancerName)
} else if cc.balancerWrapper == nil {
// Balancer dial option was set, and this is the first time handling
// resolved addresses. Build a balancer with dopts.balancerBuilder.
cc.curBalancerName = cc.dopts.balancerBuilder.Name()
cc.balancerWrapper = newCCBalancerWrapper(cc, cc.dopts.balancerBuilder, cc.balancerBuildOpts)
}
cc.balancerWrapper.switchTo(newBalancerName)
}
func (cc *ClientConn) resolveNow(o resolver.ResolveNowOptions) {
@ -1070,11 +1024,11 @@ func (cc *ClientConn) Close() error {
rWrapper := cc.resolverWrapper
cc.resolverWrapper = nil
bWrapper := cc.balancerWrapper
cc.balancerWrapper = nil
cc.mu.Unlock()
// The order of closing matters here since the balancer wrapper assumes the
// picker is closed before it is closed.
cc.blockingpicker.close()
if bWrapper != nil {
bWrapper.close()
}
@ -1085,22 +1039,22 @@ func (cc *ClientConn) Close() error {
for ac := range conns {
ac.tearDown(ErrClientConnClosing)
}
if channelz.IsOn() {
ted := &channelz.TraceEventDesc{
Desc: "Channel Deleted",
Desc: "Channel deleted",
Severity: channelz.CtInfo,
}
if cc.dopts.channelzParentID != 0 {
if cc.dopts.channelzParentID != nil {
ted.Parent = &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested channel(id:%d) deleted", cc.channelzID),
Desc: fmt.Sprintf("Nested channel(id:%d) deleted", cc.channelzID.Int()),
Severity: channelz.CtInfo,
}
}
channelz.AddTraceEvent(logger, cc.channelzID, 0, ted)
// TraceEvent needs to be called before RemoveEntry, as TraceEvent may add trace reference to
// the entity being deleted, and thus prevent it from being deleted right away.
// TraceEvent needs to be called before RemoveEntry, as TraceEvent may add
// trace reference to the entity being deleted, and thus prevent it from being
// deleted right away.
channelz.RemoveEntry(cc.channelzID)
}
return nil
}
@ -1130,7 +1084,7 @@ type addrConn struct {
backoffIdx int // Needs to be stateful for resetConnectBackoff.
resetBackoff chan struct{}
channelzID int64 // channelz unique identification number.
channelzID *channelz.Identifier
czData *channelzData
}
@ -1284,6 +1238,7 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
ac.mu.Lock()
defer ac.mu.Unlock()
defer connClosed.Fire()
defer hcancel()
if !hcStarted || hctx.Err() != nil {
// We didn't start the health check or set the state to READY, so
// no need to do anything else here.
@ -1294,7 +1249,6 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
// state, since there may be a new transport in this addrConn.
return
}
hcancel()
ac.transport = nil
// Refresh the name resolver
ac.cc.resolveNow(resolver.ResolveNowOptions{})
@ -1312,14 +1266,13 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
connectCtx, cancel := context.WithDeadline(ac.ctx, connectDeadline)
defer cancel()
if channelz.IsOn() {
copts.ChannelzParentID = ac.channelzID
}
newTr, err := transport.NewClientTransport(connectCtx, ac.cc.ctx, addr, copts, func() { prefaceReceived.Fire() }, onGoAway, onClose)
if err != nil {
// newTr is either nil, or closed.
channelz.Warningf(logger, ac.channelzID, "grpc: addrConn.createTransport failed to connect to %v. Err: %v", addr, err)
hcancel()
channelz.Warningf(logger, ac.channelzID, "grpc: addrConn.createTransport failed to connect to %s. Err: %v", addr, err)
return err
}
@ -1332,7 +1285,7 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
newTr.Close(transport.ErrConnClosing)
if connectCtx.Err() == context.DeadlineExceeded {
err := errors.New("failed to receive server preface within timeout")
channelz.Warningf(logger, ac.channelzID, "grpc: addrConn.createTransport failed to connect to %v: %v", addr, err)
channelz.Warningf(logger, ac.channelzID, "grpc: addrConn.createTransport failed to connect to %s: %v", addr, err)
return err
}
return nil
@ -1497,19 +1450,18 @@ func (ac *addrConn) tearDown(err error) {
curTr.GracefulClose()
ac.mu.Lock()
}
if channelz.IsOn() {
channelz.AddTraceEvent(logger, ac.channelzID, 0, &channelz.TraceEventDesc{
Desc: "Subchannel Deleted",
Desc: "Subchannel deleted",
Severity: channelz.CtInfo,
Parent: &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Subchanel(id:%d) deleted", ac.channelzID),
Desc: fmt.Sprintf("Subchannel(id:%d) deleted", ac.channelzID.Int()),
Severity: channelz.CtInfo,
},
})
// TraceEvent needs to be called before RemoveEntry, as TraceEvent may add trace reference to
// the entity being deleted, and thus prevent it from being deleted right away.
// TraceEvent needs to be called before RemoveEntry, as TraceEvent may add
// trace reference to the entity being deleted, and thus prevent it from
// being deleted right away.
channelz.RemoveEntry(ac.channelzID)
}
ac.mu.Unlock()
}

32
vendor/google.golang.org/grpc/dialoptions.go generated vendored
View File

@ -20,12 +20,11 @@ package grpc
import (
"context"
"fmt"
"net"
"time"
"google.golang.org/grpc/backoff"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/channelz"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/internal"
@ -55,9 +54,7 @@ type dialOptions struct {
authority string
copts transport.ConnectOptions
callOptions []CallOption
// This is used by WithBalancerName dial option.
balancerBuilder balancer.Builder
channelzParentID int64
channelzParentID *channelz.Identifier
disableServiceConfig bool
disableRetry bool
disableHealthCheck bool
@ -195,25 +192,6 @@ func WithDecompressor(dc Decompressor) DialOption {
})
}
// WithBalancerName sets the balancer that the ClientConn will be initialized
// with. Balancer registered with balancerName will be used. This function
// panics if no balancer was registered by balancerName.
//
// The balancer cannot be overridden by balancer option specified by service
// config.
//
// Deprecated: use WithDefaultServiceConfig and WithDisableServiceConfig
// instead. Will be removed in a future 1.x release.
func WithBalancerName(balancerName string) DialOption {
builder := balancer.Get(balancerName)
if builder == nil {
panic(fmt.Sprintf("grpc.WithBalancerName: no balancer is registered for name %v", balancerName))
}
return newFuncDialOption(func(o *dialOptions) {
o.balancerBuilder = builder
})
}
// WithServiceConfig returns a DialOption which has a channel to read the
// service configuration.
//
@ -304,8 +282,8 @@ func WithReturnConnectionError() DialOption {
// WithCredentialsBundle or WithPerRPCCredentials) which require transport
// security is incompatible and will cause grpc.Dial() to fail.
//
// Deprecated: use WithTransportCredentials and insecure.NewCredentials() instead.
// Will be supported throughout 1.x.
// Deprecated: use WithTransportCredentials and insecure.NewCredentials()
// instead. Will be supported throughout 1.x.
func WithInsecure() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.TransportCredentials = insecure.NewCredentials()
@ -498,7 +476,7 @@ func WithAuthority(a string) DialOption {
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithChannelzParentID(id int64) DialOption {
func WithChannelzParentID(id *channelz.Identifier) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.channelzParentID = id
})

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

@ -108,7 +108,7 @@ var registeredCodecs = make(map[string]Codec)
// more details.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple Compressors are
// an init() function), and is not thread-safe. If multiple Codecs are
// registered with the same name, the one registered last will take effect.
func RegisterCodec(codec Codec) {
if codec == nil {

382
vendor/google.golang.org/grpc/internal/balancer/gracefulswitch/gracefulswitch.go generated vendored Normal file
View File

@ -0,0 +1,382 @@
/*
*
* Copyright 2022 gRPC authors.
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*
*/
// Package gracefulswitch implements a graceful switch load balancer.
package gracefulswitch
import (
"errors"
"fmt"
"sync"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/balancer/base"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/resolver"
)
var errBalancerClosed = errors.New("gracefulSwitchBalancer is closed")
var _ balancer.Balancer = (*Balancer)(nil)
// NewBalancer returns a graceful switch Balancer.
func NewBalancer(cc balancer.ClientConn, opts balancer.BuildOptions) *Balancer {
return &Balancer{
cc: cc,
bOpts: opts,
}
}
// Balancer is a utility to gracefully switch from one balancer to
// a new balancer. It implements the balancer.Balancer interface.
type Balancer struct {
bOpts balancer.BuildOptions
cc balancer.ClientConn
// mu protects the following fields and all fields within balancerCurrent
// and balancerPending. mu does not need to be held when calling into the
// child balancers, as all calls into these children happen only as a direct
// result of a call into the gracefulSwitchBalancer, which are also
// guaranteed to be synchronous. There is one exception: an UpdateState call
// from a child balancer when current and pending are populated can lead to
// calling Close() on the current. To prevent that racing with an
// UpdateSubConnState from the channel, we hold currentMu during Close and
// UpdateSubConnState calls.
mu sync.Mutex
balancerCurrent *balancerWrapper
balancerPending *balancerWrapper
closed bool // set to true when this balancer is closed
// currentMu must be locked before mu. This mutex guards against this
// sequence of events: UpdateSubConnState() called, finds the
// balancerCurrent, gives up lock, updateState comes in, causes Close() on
// balancerCurrent before the UpdateSubConnState is called on the
// balancerCurrent.
currentMu sync.Mutex
}
// swap swaps out the current lb with the pending lb and updates the ClientConn.
// The caller must hold gsb.mu.
func (gsb *Balancer) swap() {
gsb.cc.UpdateState(gsb.balancerPending.lastState)
cur := gsb.balancerCurrent
gsb.balancerCurrent = gsb.balancerPending
gsb.balancerPending = nil
go func() {
gsb.currentMu.Lock()
defer gsb.currentMu.Unlock()
cur.Close()
}()
}
// Helper function that checks if the balancer passed in is current or pending.
// The caller must hold gsb.mu.
func (gsb *Balancer) balancerCurrentOrPending(bw *balancerWrapper) bool {
return bw == gsb.balancerCurrent || bw == gsb.balancerPending
}
// SwitchTo initializes the graceful switch process, which completes based on
// connectivity state changes on the current/pending balancer. Thus, the switch
// process is not complete when this method returns. This method must be called
// synchronously alongside the rest of the balancer.Balancer methods this
// Graceful Switch Balancer implements.
func (gsb *Balancer) SwitchTo(builder balancer.Builder) error {
gsb.mu.Lock()
if gsb.closed {
gsb.mu.Unlock()
return errBalancerClosed
}
bw := &balancerWrapper{
gsb: gsb,
lastState: balancer.State{
ConnectivityState: connectivity.Connecting,
Picker: base.NewErrPicker(balancer.ErrNoSubConnAvailable),
},
subconns: make(map[balancer.SubConn]bool),
}
balToClose := gsb.balancerPending // nil if there is no pending balancer
if gsb.balancerCurrent == nil {
gsb.balancerCurrent = bw
} else {
gsb.balancerPending = bw
}
gsb.mu.Unlock()
balToClose.Close()
// This function takes a builder instead of a balancer because builder.Build
// can call back inline, and this utility needs to handle the callbacks.
newBalancer := builder.Build(bw, gsb.bOpts)
if newBalancer == nil {
// This is illegal and should never happen; we clear the balancerWrapper
// we were constructing if it happens to avoid a potential panic.
gsb.mu.Lock()
if gsb.balancerPending != nil {
gsb.balancerPending = nil
} else {
gsb.balancerCurrent = nil
}
gsb.mu.Unlock()
return balancer.ErrBadResolverState
}
// This write doesn't need to take gsb.mu because this field never gets read
// or written to on any calls from the current or pending. Calls from grpc
// to this balancer are guaranteed to be called synchronously, so this
// bw.Balancer field will never be forwarded to until this SwitchTo()
// function returns.
bw.Balancer = newBalancer
return nil
}
// Returns nil if the graceful switch balancer is closed.
func (gsb *Balancer) latestBalancer() *balancerWrapper {
gsb.mu.Lock()
defer gsb.mu.Unlock()
if gsb.balancerPending != nil {
return gsb.balancerPending
}
return gsb.balancerCurrent
}
// UpdateClientConnState forwards the update to the latest balancer created.
func (gsb *Balancer) UpdateClientConnState(state balancer.ClientConnState) error {
// The resolver data is only relevant to the most recent LB Policy.
balToUpdate := gsb.latestBalancer()
if balToUpdate == nil {
return errBalancerClosed
}
// Perform this call without gsb.mu to prevent deadlocks if the child calls
// back into the channel. The latest balancer can never be closed during a
// call from the channel, even without gsb.mu held.
return balToUpdate.UpdateClientConnState(state)
}
// ResolverError forwards the error to the latest balancer created.
func (gsb *Balancer) ResolverError(err error) {
// The resolver data is only relevant to the most recent LB Policy.
balToUpdate := gsb.latestBalancer()
if balToUpdate == nil {
return
}
// Perform this call without gsb.mu to prevent deadlocks if the child calls
// back into the channel. The latest balancer can never be closed during a
// call from the channel, even without gsb.mu held.
balToUpdate.ResolverError(err)
}
// ExitIdle forwards the call to the latest balancer created.
//
// If the latest balancer does not support ExitIdle, the subConns are
// re-connected to manually.
func (gsb *Balancer) ExitIdle() {
balToUpdate := gsb.latestBalancer()
if balToUpdate == nil {
return
}
// There is no need to protect this read with a mutex, as the write to the
// Balancer field happens in SwitchTo, which completes before this can be
// called.
if ei, ok := balToUpdate.Balancer.(balancer.ExitIdler); ok {
ei.ExitIdle()
return
}
for sc := range balToUpdate.subconns {
sc.Connect()
}
}
// UpdateSubConnState forwards the update to the appropriate child.
func (gsb *Balancer) UpdateSubConnState(sc balancer.SubConn, state balancer.SubConnState) {
gsb.currentMu.Lock()
defer gsb.currentMu.Unlock()
gsb.mu.Lock()
// Forward update to the appropriate child. Even if there is a pending
// balancer, the current balancer should continue to get SubConn updates to
// maintain the proper state while the pending is still connecting.
var balToUpdate *balancerWrapper
if gsb.balancerCurrent != nil && gsb.balancerCurrent.subconns[sc] {
balToUpdate = gsb.balancerCurrent
} else if gsb.balancerPending != nil && gsb.balancerPending.subconns[sc] {
balToUpdate = gsb.balancerPending
}
gsb.mu.Unlock()
if balToUpdate == nil {
// SubConn belonged to a stale lb policy that has not yet fully closed,
// or the balancer was already closed.
return
}
balToUpdate.UpdateSubConnState(sc, state)
}
// Close closes any active child balancers.
func (gsb *Balancer) Close() {
gsb.mu.Lock()
gsb.closed = true
currentBalancerToClose := gsb.balancerCurrent
gsb.balancerCurrent = nil
pendingBalancerToClose := gsb.balancerPending
gsb.balancerPending = nil
gsb.mu.Unlock()
currentBalancerToClose.Close()
pendingBalancerToClose.Close()
}
// balancerWrapper wraps a balancer.Balancer, and overrides some Balancer
// methods to help cleanup SubConns created by the wrapped balancer.
//
// It implements the balancer.ClientConn interface and is passed down in that
// capacity to the wrapped balancer. It maintains a set of subConns created by
// the wrapped balancer and calls from the latter to create/update/remove
// SubConns update this set before being forwarded to the parent ClientConn.
// State updates from the wrapped balancer can result in invocation of the
// graceful switch logic.
type balancerWrapper struct {
balancer.Balancer
gsb *Balancer
lastState balancer.State
subconns map[balancer.SubConn]bool // subconns created by this balancer
}
func (bw *balancerWrapper) UpdateSubConnState(sc balancer.SubConn, state balancer.SubConnState) {
if state.ConnectivityState == connectivity.Shutdown {
bw.gsb.mu.Lock()
delete(bw.subconns, sc)
bw.gsb.mu.Unlock()
}
// There is no need to protect this read with a mutex, as the write to the
// Balancer field happens in SwitchTo, which completes before this can be
// called.
bw.Balancer.UpdateSubConnState(sc, state)
}
// Close closes the underlying LB policy and removes the subconns it created. bw
// must not be referenced via balancerCurrent or balancerPending in gsb when
// called. gsb.mu must not be held. Does not panic with a nil receiver.
func (bw *balancerWrapper) Close() {
// before Close is called.
if bw == nil {
return
}
// There is no need to protect this read with a mutex, as Close() is
// impossible to be called concurrently with the write in SwitchTo(). The
// callsites of Close() for this balancer in Graceful Switch Balancer will
// never be called until SwitchTo() returns.
bw.Balancer.Close()
bw.gsb.mu.Lock()
for sc := range bw.subconns {
bw.gsb.cc.RemoveSubConn(sc)
}
bw.gsb.mu.Unlock()
}
func (bw *balancerWrapper) UpdateState(state balancer.State) {
// Hold the mutex for this entire call to ensure it cannot occur
// concurrently with other updateState() calls. This causes updates to
// lastState and calls to cc.UpdateState to happen atomically.
bw.gsb.mu.Lock()
defer bw.gsb.mu.Unlock()
bw.lastState = state
if !bw.gsb.balancerCurrentOrPending(bw) {
return
}
if bw == bw.gsb.balancerCurrent {
// In the case that the current balancer exits READY, and there is a pending
// balancer, you can forward the pending balancer's cached State up to
// ClientConn and swap the pending into the current. This is because there
// is no reason to gracefully switch from and keep using the old policy as
// the ClientConn is not connected to any backends.
if state.ConnectivityState != connectivity.Ready && bw.gsb.balancerPending != nil {
bw.gsb.swap()
return
}
// Even if there is a pending balancer waiting to be gracefully switched to,
// continue to forward current balancer updates to the Client Conn. Ignoring
// state + picker from the current would cause undefined behavior/cause the
// system to behave incorrectly from the current LB policies perspective.
// Also, the current LB is still being used by grpc to choose SubConns per
// RPC, and thus should use the most updated form of the current balancer.
bw.gsb.cc.UpdateState(state)
return
}
// This method is now dealing with a state update from the pending balancer.
// If the current balancer is currently in a state other than READY, the new
// policy can be swapped into place immediately. This is because there is no
// reason to gracefully switch from and keep using the old policy as the
// ClientConn is not connected to any backends.
if state.ConnectivityState != connectivity.Connecting || bw.gsb.balancerCurrent.lastState.ConnectivityState != connectivity.Ready {
bw.gsb.swap()
}
}
func (bw *balancerWrapper) NewSubConn(addrs []resolver.Address, opts balancer.NewSubConnOptions) (balancer.SubConn, error) {
bw.gsb.mu.Lock()
if !bw.gsb.balancerCurrentOrPending(bw) {
bw.gsb.mu.Unlock()
return nil, fmt.Errorf("%T at address %p that called NewSubConn is deleted", bw, bw)
}
bw.gsb.mu.Unlock()
sc, err := bw.gsb.cc.NewSubConn(addrs, opts)
if err != nil {
return nil, err
}
bw.gsb.mu.Lock()
if !bw.gsb.balancerCurrentOrPending(bw) { // balancer was closed during this call
bw.gsb.cc.RemoveSubConn(sc)
bw.gsb.mu.Unlock()
return nil, fmt.Errorf("%T at address %p that called NewSubConn is deleted", bw, bw)
}
bw.subconns[sc] = true
bw.gsb.mu.Unlock()
return sc, nil
}
func (bw *balancerWrapper) ResolveNow(opts resolver.ResolveNowOptions) {
// Ignore ResolveNow requests from anything other than the most recent
// balancer, because older balancers were already removed from the config.
if bw != bw.gsb.latestBalancer() {
return
}
bw.gsb.cc.ResolveNow(opts)
}
func (bw *balancerWrapper) RemoveSubConn(sc balancer.SubConn) {
bw.gsb.mu.Lock()
if !bw.gsb.balancerCurrentOrPending(bw) {
bw.gsb.mu.Unlock()
return
}
bw.gsb.mu.Unlock()
bw.gsb.cc.RemoveSubConn(sc)
}
func (bw *balancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resolver.Address) {
bw.gsb.mu.Lock()
if !bw.gsb.balancerCurrentOrPending(bw) {
bw.gsb.mu.Unlock()
return
}
bw.gsb.mu.Unlock()
bw.gsb.cc.UpdateAddresses(sc, addrs)
}
func (bw *balancerWrapper) Target() string {
return bw.gsb.cc.Target()
}

91
vendor/google.golang.org/grpc/internal/binarylog/binarylog.go generated vendored
View File

@ -31,7 +31,7 @@ import (
// Logger is the global binary logger. It can be used to get binary logger for
// each method.
type Logger interface {
getMethodLogger(methodName string) *MethodLogger
GetMethodLogger(methodName string) MethodLogger
}
// binLogger is the global binary logger for the binary. One of this should be
@ -49,17 +49,24 @@ func SetLogger(l Logger) {
binLogger = l
}
// GetLogger gets the binarg logger.
//
// Only call this at init time.
func GetLogger() Logger {
return binLogger
}
// GetMethodLogger returns the methodLogger for the given methodName.
//
// methodName should be in the format of "/service/method".
//
// Each methodLogger returned by this method is a new instance. This is to
// generate sequence id within the call.
func GetMethodLogger(methodName string) *MethodLogger {
func GetMethodLogger(methodName string) MethodLogger {
if binLogger == nil {
return nil
}
return binLogger.getMethodLogger(methodName)
return binLogger.GetMethodLogger(methodName)
}
func init() {
@ -68,17 +75,29 @@ func init() {
binLogger = NewLoggerFromConfigString(configStr)
}
type methodLoggerConfig struct {
// MethodLoggerConfig contains the setting for logging behavior of a method
// logger. Currently, it contains the max length of header and message.
type MethodLoggerConfig struct {
// Max length of header and message.
hdr, msg uint64
Header, Message uint64
}
// LoggerConfig contains the config for loggers to create method loggers.
type LoggerConfig struct {
All *MethodLoggerConfig
Services map[string]*MethodLoggerConfig
Methods map[string]*MethodLoggerConfig
Blacklist map[string]struct{}
}
type logger struct {
all *methodLoggerConfig
services map[string]*methodLoggerConfig
methods map[string]*methodLoggerConfig
config LoggerConfig
}
blacklist map[string]struct{}
// NewLoggerFromConfig builds a logger with the given LoggerConfig.
func NewLoggerFromConfig(config LoggerConfig) Logger {
return &logger{config: config}
}
// newEmptyLogger creates an empty logger. The map fields need to be filled in
@ -88,57 +107,57 @@ func newEmptyLogger() *logger {
}
// Set method logger for "*".
func (l *logger) setDefaultMethodLogger(ml *methodLoggerConfig) error {
if l.all != nil {
func (l *logger) setDefaultMethodLogger(ml *MethodLoggerConfig) error {
if l.config.All != nil {
return fmt.Errorf("conflicting global rules found")
}
l.all = ml
l.config.All = ml
return nil
}
// Set method logger for "service/*".
//
// New methodLogger with same service overrides the old one.
func (l *logger) setServiceMethodLogger(service string, ml *methodLoggerConfig) error {
if _, ok := l.services[service]; ok {
func (l *logger) setServiceMethodLogger(service string, ml *MethodLoggerConfig) error {
if _, ok := l.config.Services[service]; ok {
return fmt.Errorf("conflicting service rules for service %v found", service)
}
if l.services == nil {
l.services = make(map[string]*methodLoggerConfig)
if l.config.Services == nil {
l.config.Services = make(map[string]*MethodLoggerConfig)
}
l.services[service] = ml
l.config.Services[service] = ml
return nil
}
// Set method logger for "service/method".
//
// New methodLogger with same method overrides the old one.
func (l *logger) setMethodMethodLogger(method string, ml *methodLoggerConfig) error {
if _, ok := l.blacklist[method]; ok {
func (l *logger) setMethodMethodLogger(method string, ml *MethodLoggerConfig) error {
if _, ok := l.config.Blacklist[method]; ok {
return fmt.Errorf("conflicting blacklist rules for method %v found", method)
}
if _, ok := l.methods[method]; ok {
if _, ok := l.config.Methods[method]; ok {
return fmt.Errorf("conflicting method rules for method %v found", method)
}
if l.methods == nil {
l.methods = make(map[string]*methodLoggerConfig)
if l.config.Methods == nil {
l.config.Methods = make(map[string]*MethodLoggerConfig)
}
l.methods[method] = ml
l.config.Methods[method] = ml
return nil
}
// Set blacklist method for "-service/method".
func (l *logger) setBlacklist(method string) error {
if _, ok := l.blacklist[method]; ok {
if _, ok := l.config.Blacklist[method]; ok {
return fmt.Errorf("conflicting blacklist rules for method %v found", method)
}
if _, ok := l.methods[method]; ok {
if _, ok := l.config.Methods[method]; ok {
return fmt.Errorf("conflicting method rules for method %v found", method)
}
if l.blacklist == nil {
l.blacklist = make(map[string]struct{})
if l.config.Blacklist == nil {
l.config.Blacklist = make(map[string]struct{})
}
l.blacklist[method] = struct{}{}
l.config.Blacklist[method] = struct{}{}
return nil
}
@ -148,23 +167,23 @@ func (l *logger) setBlacklist(method string) error {
//
// Each methodLogger returned by this method is a new instance. This is to
// generate sequence id within the call.
func (l *logger) getMethodLogger(methodName string) *MethodLogger {
func (l *logger) GetMethodLogger(methodName string) MethodLogger {
s, m, err := grpcutil.ParseMethod(methodName)
if err != nil {
grpclogLogger.Infof("binarylogging: failed to parse %q: %v", methodName, err)
return nil
}
if ml, ok := l.methods[s+"/"+m]; ok {
return newMethodLogger(ml.hdr, ml.msg)
if ml, ok := l.config.Methods[s+"/"+m]; ok {
return newMethodLogger(ml.Header, ml.Message)
}
if _, ok := l.blacklist[s+"/"+m]; ok {
if _, ok := l.config.Blacklist[s+"/"+m]; ok {
return nil
}
if ml, ok := l.services[s]; ok {
return newMethodLogger(ml.hdr, ml.msg)
if ml, ok := l.config.Services[s]; ok {
return newMethodLogger(ml.Header, ml.Message)
}
if l.all == nil {
if l.config.All == nil {
return nil
}
return newMethodLogger(l.all.hdr, l.all.msg)
return newMethodLogger(l.config.All.Header, l.config.All.Message)
}

6
vendor/google.golang.org/grpc/internal/binarylog/env_config.go generated vendored
View File

@ -89,7 +89,7 @@ func (l *logger) fillMethodLoggerWithConfigString(config string) error {
if err != nil {
return fmt.Errorf("invalid config: %q, %v", config, err)
}
if err := l.setDefaultMethodLogger(&methodLoggerConfig{hdr: hdr, msg: msg}); err != nil {
if err := l.setDefaultMethodLogger(&MethodLoggerConfig{Header: hdr, Message: msg}); err != nil {
return fmt.Errorf("invalid config: %v", err)
}
return nil
@ -104,11 +104,11 @@ func (l *logger) fillMethodLoggerWithConfigString(config string) error {
return fmt.Errorf("invalid header/message length config: %q, %v", suffix, err)
}
if m == "*" {
if err := l.setServiceMethodLogger(s, &methodLoggerConfig{hdr: hdr, msg: msg}); err != nil {
if err := l.setServiceMethodLogger(s, &MethodLoggerConfig{Header: hdr, Message: msg}); err != nil {
return fmt.Errorf("invalid config: %v", err)
}
} else {
if err := l.setMethodMethodLogger(s+"/"+m, &methodLoggerConfig{hdr: hdr, msg: msg}); err != nil {
if err := l.setMethodMethodLogger(s+"/"+m, &MethodLoggerConfig{Header: hdr, Message: msg}); err != nil {
return fmt.Errorf("invalid config: %v", err)
}
}

28
vendor/google.golang.org/grpc/internal/binarylog/method_logger.go generated vendored
View File

@ -48,7 +48,11 @@ func (g *callIDGenerator) reset() {
var idGen callIDGenerator
// MethodLogger is the sub-logger for each method.
type MethodLogger struct {
type MethodLogger interface {
Log(LogEntryConfig)
}
type methodLogger struct {
headerMaxLen, messageMaxLen uint64
callID uint64
@ -57,8 +61,8 @@ type MethodLogger struct {
sink Sink // TODO(blog): make this plugable.
}
func newMethodLogger(h, m uint64) *MethodLogger {
return &MethodLogger{
func newMethodLogger(h, m uint64) *methodLogger {
return &methodLogger{
headerMaxLen: h,
messageMaxLen: m,
@ -69,8 +73,10 @@ func newMethodLogger(h, m uint64) *MethodLogger {
}
}
// Log creates a proto binary log entry, and logs it to the sink.
func (ml *MethodLogger) Log(c LogEntryConfig) {
// Build is an internal only method for building the proto message out of the
// input event. It's made public to enable other library to reuse as much logic
// in methodLogger as possible.
func (ml *methodLogger) Build(c LogEntryConfig) *pb.GrpcLogEntry {
m := c.toProto()
timestamp, _ := ptypes.TimestampProto(time.Now())
m.Timestamp = timestamp
@ -85,11 +91,15 @@ func (ml *MethodLogger) Log(c LogEntryConfig) {
case *pb.GrpcLogEntry_Message:
m.PayloadTruncated = ml.truncateMessage(pay.Message)
}
ml.sink.Write(m)
return m
}
func (ml *MethodLogger) truncateMetadata(mdPb *pb.Metadata) (truncated bool) {
// Log creates a proto binary log entry, and logs it to the sink.
func (ml *methodLogger) Log(c LogEntryConfig) {
ml.sink.Write(ml.Build(c))
}
func (ml *methodLogger) truncateMetadata(mdPb *pb.Metadata) (truncated bool) {
if ml.headerMaxLen == maxUInt {
return false
}
@ -119,7 +129,7 @@ func (ml *MethodLogger) truncateMetadata(mdPb *pb.Metadata) (truncated bool) {
return truncated
}
func (ml *MethodLogger) truncateMessage(msgPb *pb.Message) (truncated bool) {
func (ml *methodLogger) truncateMessage(msgPb *pb.Message) (truncated bool) {
if ml.messageMaxLen == maxUInt {
return false
}

153
vendor/google.golang.org/grpc/internal/channelz/funcs.go generated vendored
View File

@ -25,6 +25,7 @@ package channelz
import (
"context"
"errors"
"fmt"
"sort"
"sync"
@ -184,54 +185,77 @@ func GetServer(id int64) *ServerMetric {
return db.get().GetServer(id)
}
// RegisterChannel registers the given channel c in channelz database with ref
// as its reference name, and add it to the child list of its parent (identified
// by pid). pid = 0 means no parent. It returns the unique channelz tracking id
// assigned to this channel.
func RegisterChannel(c Channel, pid int64, ref string) int64 {
// RegisterChannel registers the given channel c in the channelz database with
// ref as its reference name, and adds it to the child list of its parent
// (identified by pid). pid == nil means no parent.
//
// Returns a unique channelz identifier assigned to this channel.
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterChannel(c Channel, pid *Identifier, ref string) *Identifier {
id := idGen.genID()
var parent int64
isTopChannel := true
if pid != nil {
isTopChannel = false
parent = pid.Int()
}
if !IsOn() {
return newIdentifer(RefChannel, id, pid)
}
cn := &channel{
refName: ref,
c: c,
subChans: make(map[int64]string),
nestedChans: make(map[int64]string),
id: id,
pid: pid,
pid: parent,
trace: &channelTrace{createdTime: time.Now(), events: make([]*TraceEvent, 0, getMaxTraceEntry())},
}
if pid == 0 {
db.get().addChannel(id, cn, true, pid)
} else {
db.get().addChannel(id, cn, false, pid)
}
return id
db.get().addChannel(id, cn, isTopChannel, parent)
return newIdentifer(RefChannel, id, pid)
}
// RegisterSubChannel registers the given channel c in channelz database with ref
// as its reference name, and add it to the child list of its parent (identified
// by pid). It returns the unique channelz tracking id assigned to this subchannel.
func RegisterSubChannel(c Channel, pid int64, ref string) int64 {
if pid == 0 {
logger.Error("a SubChannel's parent id cannot be 0")
return 0
// RegisterSubChannel registers the given subChannel c in the channelz database
// with ref as its reference name, and adds it to the child list of its parent
// (identified by pid).
//
// Returns a unique channelz identifier assigned to this subChannel.
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterSubChannel(c Channel, pid *Identifier, ref string) (*Identifier, error) {
if pid == nil {
return nil, errors.New("a SubChannel's parent id cannot be nil")
}
id := idGen.genID()
if !IsOn() {
return newIdentifer(RefSubChannel, id, pid), nil
}
sc := &subChannel{
refName: ref,
c: c,
sockets: make(map[int64]string),
id: id,
pid: pid,
pid: pid.Int(),
trace: &channelTrace{createdTime: time.Now(), events: make([]*TraceEvent, 0, getMaxTraceEntry())},
}
db.get().addSubChannel(id, sc, pid)
return id
db.get().addSubChannel(id, sc, pid.Int())
return newIdentifer(RefSubChannel, id, pid), nil
}
// RegisterServer registers the given server s in channelz database. It returns
// the unique channelz tracking id assigned to this server.
func RegisterServer(s Server, ref string) int64 {
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterServer(s Server, ref string) *Identifier {
id := idGen.genID()
if !IsOn() {
return newIdentifer(RefServer, id, nil)
}
svr := &server{
refName: ref,
s: s,
@ -240,71 +264,92 @@ func RegisterServer(s Server, ref string) int64 {
id: id,
}
db.get().addServer(id, svr)
return id
return newIdentifer(RefServer, id, nil)
}
// RegisterListenSocket registers the given listen socket s in channelz database
// with ref as its reference name, and add it to the child list of its parent
// (identified by pid). It returns the unique channelz tracking id assigned to
// this listen socket.
func RegisterListenSocket(s Socket, pid int64, ref string) int64 {
if pid == 0 {
logger.Error("a ListenSocket's parent id cannot be 0")
return 0
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterListenSocket(s Socket, pid *Identifier, ref string) (*Identifier, error) {
if pid == nil {
return nil, errors.New("a ListenSocket's parent id cannot be 0")
}
id := idGen.genID()
ls := &listenSocket{refName: ref, s: s, id: id, pid: pid}
db.get().addListenSocket(id, ls, pid)
return id
if !IsOn() {
return newIdentifer(RefListenSocket, id, pid), nil
}
ls := &listenSocket{refName: ref, s: s, id: id, pid: pid.Int()}
db.get().addListenSocket(id, ls, pid.Int())
return newIdentifer(RefListenSocket, id, pid), nil
}
// RegisterNormalSocket registers the given normal socket s in channelz database
// with ref as its reference name, and add it to the child list of its parent
// with ref as its reference name, and adds it to the child list of its parent
// (identified by pid). It returns the unique channelz tracking id assigned to
// this normal socket.
func RegisterNormalSocket(s Socket, pid int64, ref string) int64 {
if pid == 0 {
logger.Error("a NormalSocket's parent id cannot be 0")
return 0
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterNormalSocket(s Socket, pid *Identifier, ref string) (*Identifier, error) {
if pid == nil {
return nil, errors.New("a NormalSocket's parent id cannot be 0")
}
id := idGen.genID()
ns := &normalSocket{refName: ref, s: s, id: id, pid: pid}
db.get().addNormalSocket(id, ns, pid)
return id
if !IsOn() {
return newIdentifer(RefNormalSocket, id, pid), nil
}
ns := &normalSocket{refName: ref, s: s, id: id, pid: pid.Int()}
db.get().addNormalSocket(id, ns, pid.Int())
return newIdentifer(RefNormalSocket, id, pid), nil
}
// RemoveEntry removes an entry with unique channelz tracking id to be id from
// channelz database.
func RemoveEntry(id int64) {
db.get().removeEntry(id)
//
// If channelz is not turned ON, this function is a no-op.
func RemoveEntry(id *Identifier) {
if !IsOn() {
return
}
db.get().removeEntry(id.Int())
}
// TraceEventDesc is what the caller of AddTraceEvent should provide to describe the event to be added
// to the channel trace.
// The Parent field is optional. It is used for event that will be recorded in the entity's parent
// trace also.
// TraceEventDesc is what the caller of AddTraceEvent should provide to describe
// the event to be added to the channel trace.
//
// The Parent field is optional. It is used for an event that will be recorded
// in the entity's parent trace.
type TraceEventDesc struct {
Desc string
Severity Severity
Parent *TraceEventDesc
}
// AddTraceEvent adds trace related to the entity with specified id, using the provided TraceEventDesc.
func AddTraceEvent(l grpclog.DepthLoggerV2, id int64, depth int, desc *TraceEventDesc) {
for d := desc; d != nil; d = d.Parent {
switch d.Severity {
// AddTraceEvent adds trace related to the entity with specified id, using the
// provided TraceEventDesc.
//
// If channelz is not turned ON, this will simply log the event descriptions.
func AddTraceEvent(l grpclog.DepthLoggerV2, id *Identifier, depth int, desc *TraceEventDesc) {
// Log only the trace description associated with the bottom most entity.
switch desc.Severity {
case CtUnknown, CtInfo:
l.InfoDepth(depth+1, d.Desc)
l.InfoDepth(depth+1, withParens(id)+desc.Desc)
case CtWarning:
l.WarningDepth(depth+1, d.Desc)
l.WarningDepth(depth+1, withParens(id)+desc.Desc)
case CtError:
l.ErrorDepth(depth+1, d.Desc)
}
l.ErrorDepth(depth+1, withParens(id)+desc.Desc)
}
if getMaxTraceEntry() == 0 {
return
}
db.get().traceEvent(id, desc)
if IsOn() {
db.get().traceEvent(id.Int(), desc)
}
}
// channelMap is the storage data structure for channelz.

75
vendor/google.golang.org/grpc/internal/channelz/id.go generated vendored Normal file
View File

@ -0,0 +1,75 @@
/*
*
* Copyright 2022 gRPC authors.
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*
*/
package channelz
import "fmt"
// Identifier is an opaque identifier which uniquely identifies an entity in the
// channelz database.
type Identifier struct {
typ RefChannelType
id int64
str string
pid *Identifier
}
// Type returns the entity type corresponding to id.
func (id *Identifier) Type() RefChannelType {
return id.typ
}
// Int returns the integer identifier corresponding to id.
func (id *Identifier) Int() int64 {
return id.id
}
// String returns a string representation of the entity corresponding to id.
//
// This includes some information about the parent as well. Examples:
// Top-level channel: [Channel #channel-number]
// Nested channel: [Channel #parent-channel-number Channel #channel-number]
// Sub channel: [Channel #parent-channel SubChannel #subchannel-number]
func (id *Identifier) String() string {
return id.str
}
// Equal returns true if other is the same as id.
func (id *Identifier) Equal(other *Identifier) bool {
if (id != nil) != (other != nil) {
return false
}
if id == nil && other == nil {
return true
}
return id.typ == other.typ && id.id == other.id && id.pid == other.pid
}
// NewIdentifierForTesting returns a new opaque identifier to be used only for
// testing purposes.
func NewIdentifierForTesting(typ RefChannelType, id int64, pid *Identifier) *Identifier {
return newIdentifer(typ, id, pid)
}
func newIdentifer(typ RefChannelType, id int64, pid *Identifier) *Identifier {
str := fmt.Sprintf("%s #%d", typ, id)
if pid != nil {
str = fmt.Sprintf("%s %s", pid, str)
}
return &Identifier{typ: typ, id: id, str: str, pid: pid}
}

49
vendor/google.golang.org/grpc/internal/channelz/logging.go generated vendored
View File

@ -26,77 +26,54 @@ import (
var logger = grpclog.Component("channelz")
func withParens(id *Identifier) string {
return "[" + id.String() + "] "
}
// Info logs and adds a trace event if channelz is on.
func Info(l grpclog.DepthLoggerV2, id int64, args ...interface{}) {
if IsOn() {
func Info(l grpclog.DepthLoggerV2, id *Identifier, args ...interface{}) {
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: fmt.Sprint(args...),
Severity: CtInfo,
})
} else {
l.InfoDepth(1, args...)
}
}
// Infof logs and adds a trace event if channelz is on.
func Infof(l grpclog.DepthLoggerV2, id int64, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
if IsOn() {
func Infof(l grpclog.DepthLoggerV2, id *Identifier, format string, args ...interface{}) {
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: msg,
Desc: fmt.Sprintf(format, args...),
Severity: CtInfo,
})
} else {
l.InfoDepth(1, msg)
}
}
// Warning logs and adds a trace event if channelz is on.
func Warning(l grpclog.DepthLoggerV2, id int64, args ...interface{}) {
if IsOn() {
func Warning(l grpclog.DepthLoggerV2, id *Identifier, args ...interface{}) {
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: fmt.Sprint(args...),
Severity: CtWarning,
})
} else {
l.WarningDepth(1, args...)
}
}
// Warningf logs and adds a trace event if channelz is on.
func Warningf(l grpclog.DepthLoggerV2, id int64, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
if IsOn() {
func Warningf(l grpclog.DepthLoggerV2, id *Identifier, format string, args ...interface{}) {
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: msg,
Desc: fmt.Sprintf(format, args...),
Severity: CtWarning,
})
} else {
l.WarningDepth(1, msg)
}
}
// Error logs and adds a trace event if channelz is on.
func Error(l grpclog.DepthLoggerV2, id int64, args ...interface{}) {
if IsOn() {
func Error(l grpclog.DepthLoggerV2, id *Identifier, args ...interface{}) {
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: fmt.Sprint(args...),
Severity: CtError,
})
} else {
l.ErrorDepth(1, args...)
}
}
// Errorf logs and adds a trace event if channelz is on.
func Errorf(l grpclog.DepthLoggerV2, id int64, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
if IsOn() {
func Errorf(l grpclog.DepthLoggerV2, id *Identifier, format string, args ...interface{}) {
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: msg,
Desc: fmt.Sprintf(format, args...),
Severity: CtError,
})
} else {
l.ErrorDepth(1, msg)
}
}

23
vendor/google.golang.org/grpc/internal/channelz/types.go generated vendored
View File

@ -686,12 +686,33 @@ const (
type RefChannelType int
const (
// RefUnknown indicates an unknown entity type, the zero value for this type.
RefUnknown RefChannelType = iota
// RefChannel indicates the referenced entity is a Channel.
RefChannel RefChannelType = iota
RefChannel
// RefSubChannel indicates the referenced entity is a SubChannel.
RefSubChannel
// RefServer indicates the referenced entity is a Server.
RefServer
// RefListenSocket indicates the referenced entity is a ListenSocket.
RefListenSocket
// RefNormalSocket indicates the referenced entity is a NormalSocket.
RefNormalSocket
)
var refChannelTypeToString = map[RefChannelType]string{
RefUnknown: "Unknown",
RefChannel: "Channel",
RefSubChannel: "SubChannel",
RefServer: "Server",
RefListenSocket: "ListenSocket",
RefNormalSocket: "NormalSocket",
}
func (r RefChannelType) String() string {
return refChannelTypeToString[r]
}
func (c *channelTrace) dumpData() *ChannelTrace {
c.mu.Lock()
ct := &ChannelTrace{EventNum: c.eventCount, CreationTime: c.createdTime}

6
vendor/google.golang.org/grpc/internal/internal.go generated vendored
View File

@ -85,3 +85,9 @@ const (
// that supports backend returned by grpclb balancer.
CredsBundleModeBackendFromBalancer = "backend-from-balancer"
)
// RLSLoadBalancingPolicyName is the name of the RLS LB policy.
//
// It currently has an experimental suffix which would be removed once
// end-to-end testing of the policy is completed.
const RLSLoadBalancingPolicyName = "rls_experimental"

46
vendor/google.golang.org/grpc/internal/metadata/metadata.go generated vendored
View File

@ -22,6 +22,9 @@
package metadata
import (
"fmt"
"strings"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/resolver"
)
@ -72,3 +75,46 @@ func Set(addr resolver.Address, md metadata.MD) resolver.Address {
addr.Attributes = addr.Attributes.WithValue(mdKey, mdValue(md))
return addr
}
// Validate returns an error if the input md contains invalid keys or values.
//
// If the header is not a pseudo-header, the following items are checked:
// - header names must contain one or more characters from this set [0-9 a-z _ - .].
// - if the header-name ends with a "-bin" suffix, no validation of the header value is performed.
// - otherwise, the header value must contain one or more characters from the set [%x20-%x7E].
func Validate(md metadata.MD) error {
for k, vals := range md {
// pseudo-header will be ignored
if k[0] == ':' {
continue
}
// check key, for i that saving a conversion if not using for range
for i := 0; i < len(k); i++ {
r := k[i]
if !(r >= 'a' && r <= 'z') && !(r >= '0' && r <= '9') && r != '.' && r != '-' && r != '_' {
return fmt.Errorf("header key %q contains illegal characters not in [0-9a-z-_.]", k)
}
}
if strings.HasSuffix(k, "-bin") {
continue
}
// check value
for _, val := range vals {
if hasNotPrintable(val) {
return fmt.Errorf("header key %q contains value with non-printable ASCII characters", k)
}
}
}
return nil
}
// hasNotPrintable return true if msg contains any characters which are not in %x20-%x7E
func hasNotPrintable(msg string) bool {
// for i that saving a conversion if not using for range
for i := 0; i < len(msg); i++ {
if msg[i] < 0x20 || msg[i] > 0x7E {
return true
}
}
return false
}

82
vendor/google.golang.org/grpc/internal/pretty/pretty.go generated vendored Normal file
View File

@ -0,0 +1,82 @@
/*
*
* Copyright 2021 gRPC authors.
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*
*/
// Package pretty defines helper functions to pretty-print structs for logging.
package pretty
import (
"bytes"
"encoding/json"
"fmt"
"github.com/golang/protobuf/jsonpb"
protov1 "github.com/golang/protobuf/proto"
"google.golang.org/protobuf/encoding/protojson"
protov2 "google.golang.org/protobuf/proto"
)
const jsonIndent = " "
// ToJSON marshals the input into a json string.
//
// If marshal fails, it falls back to fmt.Sprintf("%+v").
func ToJSON(e interface{}) string {
switch ee := e.(type) {
case protov1.Message:
mm := jsonpb.Marshaler{Indent: jsonIndent}
ret, err := mm.MarshalToString(ee)
if err != nil {
// This may fail for proto.Anys, e.g. for xDS v2, LDS, the v2
// messages are not imported, and this will fail because the message
// is not found.
return fmt.Sprintf("%+v", ee)
}
return ret
case protov2.Message:
mm := protojson.MarshalOptions{
Multiline: true,
Indent: jsonIndent,
}
ret, err := mm.Marshal(ee)
if err != nil {
// This may fail for proto.Anys, e.g. for xDS v2, LDS, the v2
// messages are not imported, and this will fail because the message
// is not found.
return fmt.Sprintf("%+v", ee)
}
return string(ret)
default:
ret, err := json.MarshalIndent(ee, "", jsonIndent)
if err != nil {
return fmt.Sprintf("%+v", ee)
}
return string(ret)
}
}
// FormatJSON formats the input json bytes with indentation.
//
// If Indent fails, it returns the unchanged input as string.
func FormatJSON(b []byte) string {
var out bytes.Buffer
err := json.Indent(&out, b, "", jsonIndent)
if err != nil {
return string(b)
}
return out.String()
}

6
vendor/google.golang.org/grpc/internal/transport/controlbuf.go generated vendored
View File

@ -137,6 +137,7 @@ type earlyAbortStream struct {
streamID uint32
contentSubtype string
status *status.Status
rst bool
}
func (*earlyAbortStream) isTransportResponseFrame() bool { return false }
@ -786,6 +787,11 @@ func (l *loopyWriter) earlyAbortStreamHandler(eas *earlyAbortStream) error {
if err := l.writeHeader(eas.streamID, true, headerFields, nil); err != nil {
return err
}
if eas.rst {
if err := l.framer.fr.WriteRSTStream(eas.streamID, http2.ErrCodeNo); err != nil {
return err
}
}
return nil
}

29
vendor/google.golang.org/grpc/internal/transport/http2_client.go generated vendored
View File

@ -132,7 +132,7 @@ type http2Client struct {
kpDormant bool
// Fields below are for channelz metric collection.
channelzID int64 // channelz unique identification number
channelzID *channelz.Identifier
czData *channelzData
onGoAway func(GoAwayReason)
@ -351,8 +351,9 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
}
t.statsHandler.HandleConn(t.ctx, connBegin)
}
if channelz.IsOn() {
t.channelzID = channelz.RegisterNormalSocket(t, opts.ChannelzParentID, fmt.Sprintf("%s -> %s", t.localAddr, t.remoteAddr))
t.channelzID, err = channelz.RegisterNormalSocket(t, opts.ChannelzParentID, fmt.Sprintf("%s -> %s", t.localAddr, t.remoteAddr))
if err != nil {
return nil, err
}
if t.keepaliveEnabled {
t.kpDormancyCond = sync.NewCond(&t.mu)
@ -630,8 +631,8 @@ func (t *http2Client) getCallAuthData(ctx context.Context, audience string, call
// the wire. However, there are two notable exceptions:
//
// 1. If the stream headers violate the max header list size allowed by the
// server. In this case there is no reason to retry at all, as it is
// assumed the RPC would continue to fail on subsequent attempts.
// server. It's possible this could succeed on another transport, even if
// it's unlikely, but do not transparently retry.
// 2. If the credentials errored when requesting their headers. In this case,
// it's possible a retry can fix the problem, but indefinitely transparently
// retrying is not appropriate as it is likely the credentials, if they can
@ -639,8 +640,7 @@ func (t *http2Client) getCallAuthData(ctx context.Context, audience string, call
type NewStreamError struct {
Err error
DoNotRetry bool
DoNotTransparentRetry bool
AllowTransparentRetry bool
}
func (e NewStreamError) Error() string {
@ -649,11 +649,11 @@ func (e NewStreamError) Error() string {
// NewStream creates a stream and registers it into the transport as "active"
// streams. All non-nil errors returned will be *NewStreamError.
func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Stream, err error) {
func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream, error) {
ctx = peer.NewContext(ctx, t.getPeer())
headerFields, err := t.createHeaderFields(ctx, callHdr)
if err != nil {
return nil, &NewStreamError{Err: err, DoNotTransparentRetry: true}
return nil, &NewStreamError{Err: err, AllowTransparentRetry: false}
}
s := t.newStream(ctx, callHdr)
cleanup := func(err error) {
@ -753,13 +753,14 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
return true
}, hdr)
if err != nil {
return nil, &NewStreamError{Err: err}
// Connection closed.
return nil, &NewStreamError{Err: err, AllowTransparentRetry: true}
}
if success {
break
}
if hdrListSizeErr != nil {
return nil, &NewStreamError{Err: hdrListSizeErr, DoNotRetry: true}
return nil, &NewStreamError{Err: hdrListSizeErr}
}
firstTry = false
select {
@ -767,9 +768,9 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
case <-ctx.Done():
return nil, &NewStreamError{Err: ContextErr(ctx.Err())}
case <-t.goAway:
return nil, &NewStreamError{Err: errStreamDrain}
return nil, &NewStreamError{Err: errStreamDrain, AllowTransparentRetry: true}
case <-t.ctx.Done():
return nil, &NewStreamError{Err: ErrConnClosing}
return nil, &NewStreamError{Err: ErrConnClosing, AllowTransparentRetry: true}
}
}
if t.statsHandler != nil {
@ -898,9 +899,7 @@ func (t *http2Client) Close(err error) {
t.controlBuf.finish()
t.cancel()
t.conn.Close()
if channelz.IsOn() {
channelz.RemoveEntry(t.channelzID)
}
// Append info about previous goaways if there were any, since this may be important
// for understanding the root cause for this connection to be closed.
_, goAwayDebugMessage := t.GetGoAwayReason()

87
vendor/google.golang.org/grpc/internal/transport/http2_server.go generated vendored
View File

@ -21,7 +21,6 @@ package transport
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"math"
@ -36,6 +35,7 @@ import (
"golang.org/x/net/http2"
"golang.org/x/net/http2/hpack"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/internal/syscall"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
@ -52,10 +52,10 @@ import (
var (
// ErrIllegalHeaderWrite indicates that setting header is illegal because of
// the stream's state.
ErrIllegalHeaderWrite = errors.New("transport: the stream is done or WriteHeader was already called")
ErrIllegalHeaderWrite = status.Error(codes.Internal, "transport: SendHeader called multiple times")
// ErrHeaderListSizeLimitViolation indicates that the header list size is larger
// than the limit set by peer.
ErrHeaderListSizeLimitViolation = errors.New("transport: trying to send header list size larger than the limit set by peer")
ErrHeaderListSizeLimitViolation = status.Error(codes.Internal, "transport: trying to send header list size larger than the limit set by peer")
)
// serverConnectionCounter counts the number of connections a server has seen
@ -117,7 +117,7 @@ type http2Server struct {
idle time.Time
// Fields below are for channelz metric collection.
channelzID int64 // channelz unique identification number
channelzID *channelz.Identifier
czData *channelzData
bufferPool *bufferPool
@ -231,6 +231,11 @@ func NewServerTransport(conn net.Conn, config *ServerConfig) (_ ServerTransport,
if kp.Timeout == 0 {
kp.Timeout = defaultServerKeepaliveTimeout
}
if kp.Time != infinity {
if err = syscall.SetTCPUserTimeout(conn, kp.Timeout); err != nil {
return nil, connectionErrorf(false, err, "transport: failed to set TCP_USER_TIMEOUT: %v", err)
}
}
kep := config.KeepalivePolicy
if kep.MinTime == 0 {
kep.MinTime = defaultKeepalivePolicyMinTime
@ -275,12 +280,12 @@ func NewServerTransport(conn net.Conn, config *ServerConfig) (_ ServerTransport,
connBegin := &stats.ConnBegin{}
t.stats.HandleConn(t.ctx, connBegin)
}
if channelz.IsOn() {
t.channelzID = channelz.RegisterNormalSocket(t, config.ChannelzParentID, fmt.Sprintf("%s -> %s", t.remoteAddr, t.localAddr))
t.channelzID, err = channelz.RegisterNormalSocket(t, config.ChannelzParentID, fmt.Sprintf("%s -> %s", t.remoteAddr, t.localAddr))
if err != nil {
return nil, err
}
t.connectionID = atomic.AddUint64(&serverConnectionCounter, 1)
t.framer.writer.Flush()
defer func() {
@ -443,6 +448,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
streamID: streamID,
contentSubtype: s.contentSubtype,
status: status.New(codes.Internal, errMsg),
rst: !frame.StreamEnded(),
})
return false
}
@ -516,14 +522,16 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
}
if httpMethod != http.MethodPost {
t.mu.Unlock()
errMsg := fmt.Sprintf("http2Server.operateHeaders parsed a :method field: %v which should be POST", httpMethod)
if logger.V(logLevel) {
logger.Infof("transport: http2Server.operateHeaders parsed a :method field: %v which should be POST", httpMethod)
logger.Infof("transport: %v", errMsg)
}
t.controlBuf.put(&cleanupStream{
t.controlBuf.put(&earlyAbortStream{
httpStatus: 405,
streamID: streamID,
rst: true,
rstCode: http2.ErrCodeProtocol,
onWrite: func() {},
contentSubtype: s.contentSubtype,
status: status.New(codes.Internal, errMsg),
rst: !frame.StreamEnded(),
})
s.cancel()
return false
@ -544,6 +552,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
streamID: s.id,
contentSubtype: s.contentSubtype,
status: stat,
rst: !frame.StreamEnded(),
})
return false
}
@ -925,11 +934,25 @@ func (t *http2Server) checkForHeaderListSize(it interface{}) bool {
return true
}
func (t *http2Server) streamContextErr(s *Stream) error {
select {
case <-t.done:
return ErrConnClosing
default:
}
return ContextErr(s.ctx.Err())
}
// WriteHeader sends the header metadata md back to the client.
func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
if s.updateHeaderSent() || s.getState() == streamDone {
if s.updateHeaderSent() {
return ErrIllegalHeaderWrite
}
if s.getState() == streamDone {
return t.streamContextErr(s)
}
s.hdrMu.Lock()
if md.Len() > 0 {
if s.header.Len() > 0 {
@ -940,7 +963,7 @@ func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
}
if err := t.writeHeaderLocked(s); err != nil {
s.hdrMu.Unlock()
return err
return status.Convert(err).Err()
}
s.hdrMu.Unlock()
return nil
@ -1056,23 +1079,12 @@ func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
func (t *http2Server) Write(s *Stream, hdr []byte, data []byte, opts *Options) error {
if !s.isHeaderSent() { // Headers haven't been written yet.
if err := t.WriteHeader(s, nil); err != nil {
if _, ok := err.(ConnectionError); ok {
return err
}
// TODO(mmukhi, dfawley): Make sure this is the right code to return.
return status.Errorf(codes.Internal, "transport: %v", err)
}
} else {
// Writing headers checks for this condition.
if s.getState() == streamDone {
// TODO(mmukhi, dfawley): Should the server write also return io.EOF?
s.cancel()
select {
case <-t.done:
return ErrConnClosing
default:
}
return ContextErr(s.ctx.Err())
return t.streamContextErr(s)
}
}
df := &dataFrame{
@ -1082,12 +1094,7 @@ func (t *http2Server) Write(s *Stream, hdr []byte, data []byte, opts *Options) e
onEachWrite: t.setResetPingStrikes,
}
if err := s.wq.get(int32(len(hdr) + len(data))); err != nil {
select {
case <-t.done:
return ErrConnClosing
default:
}
return ContextErr(s.ctx.Err())
return t.streamContextErr(s)
}
return t.controlBuf.put(df)
}
@ -1210,9 +1217,7 @@ func (t *http2Server) Close() {
if err := t.conn.Close(); err != nil && logger.V(logLevel) {
logger.Infof("transport: error closing conn during Close: %v", err)
}
if channelz.IsOn() {
channelz.RemoveEntry(t.channelzID)
}
// Cancel all active streams.
for _, s := range streams {
s.cancel()
@ -1225,10 +1230,6 @@ func (t *http2Server) Close() {
// deleteStream deletes the stream s from transport's active streams.
func (t *http2Server) deleteStream(s *Stream, eosReceived bool) {
// In case stream sending and receiving are invoked in separate
// goroutines (e.g., bi-directional streaming), cancel needs to be
// called to interrupt the potential blocking on other goroutines.
s.cancel()
t.mu.Lock()
if _, ok := t.activeStreams[s.id]; ok {
@ -1250,6 +1251,11 @@ func (t *http2Server) deleteStream(s *Stream, eosReceived bool) {
// finishStream closes the stream and puts the trailing headerFrame into controlbuf.
func (t *http2Server) finishStream(s *Stream, rst bool, rstCode http2.ErrCode, hdr *headerFrame, eosReceived bool) {
// In case stream sending and receiving are invoked in separate
// goroutines (e.g., bi-directional streaming), cancel needs to be
// called to interrupt the potential blocking on other goroutines.
s.cancel()
oldState := s.swapState(streamDone)
if oldState == streamDone {
// If the stream was already done, return.
@ -1269,6 +1275,11 @@ func (t *http2Server) finishStream(s *Stream, rst bool, rstCode http2.ErrCode, h
// closeStream clears the footprint of a stream when the stream is not needed any more.
func (t *http2Server) closeStream(s *Stream, rst bool, rstCode http2.ErrCode, eosReceived bool) {
// In case stream sending and receiving are invoked in separate
// goroutines (e.g., bi-directional streaming), cancel needs to be
// called to interrupt the potential blocking on other goroutines.
s.cancel()
s.swapState(streamDone)
t.deleteStream(s, eosReceived)

5
vendor/google.golang.org/grpc/internal/transport/transport.go generated vendored
View File

@ -34,6 +34,7 @@ import (
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/resolver"
@ -529,7 +530,7 @@ type ServerConfig struct {
InitialConnWindowSize int32
WriteBufferSize int
ReadBufferSize int
ChannelzParentID int64
ChannelzParentID *channelz.Identifier
MaxHeaderListSize *uint32
HeaderTableSize *uint32
}
@ -563,7 +564,7 @@ type ConnectOptions struct {
// ReadBufferSize sets the size of read buffer, which in turn determines how much data can be read at most for one read syscall.
ReadBufferSize int
// ChannelzParentID sets the addrConn id which initiate the creation of this client transport.
ChannelzParentID int64
ChannelzParentID *channelz.Identifier
// MaxHeaderListSize sets the max (uncompressed) size of header list that is prepared to be received.
MaxHeaderListSize *uint32
// UseProxy specifies if a proxy should be used.

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

@ -188,7 +188,9 @@ func FromIncomingContext(ctx context.Context) (MD, bool) {
// map, and there's no guarantee that the MD attached to the context is
// created using our helper functions.
key := strings.ToLower(k)
out[key] = v
s := make([]string, len(v))
copy(s, v)
out[key] = s
}
return out, true
}
@ -226,7 +228,9 @@ func FromOutgoingContext(ctx context.Context) (MD, bool) {
// map, and there's no guarantee that the MD attached to the context is
// created using our helper functions.
key := strings.ToLower(k)
out[key] = v
s := make([]string, len(v))
copy(s, v)
out[key] = s
}
for _, added := range raw.added {
if len(added)%2 == 1 {

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

@ -131,7 +131,7 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
}
if _, ok := status.FromError(err); ok {
// Status error: end the RPC unconditionally with this status.
return nil, nil, err
return nil, nil, dropError{error: err}
}
// For all other errors, wait for ready RPCs should block and other
// RPCs should fail with unavailable.
@ -175,3 +175,9 @@ func (pw *pickerWrapper) close() {
pw.done = true
close(pw.blockingCh)
}
// dropError is a wrapper error that indicates the LB policy wishes to drop the
// RPC and not retry it.
type dropError struct {
error
}

106
vendor/google.golang.org/grpc/pickfirst.go generated vendored
View File

@ -46,77 +46,105 @@ func (*pickfirstBuilder) Name() string {
type pickfirstBalancer struct {
state connectivity.State
cc balancer.ClientConn
sc balancer.SubConn
subConn balancer.SubConn
}
func (b *pickfirstBalancer) ResolverError(err error) {
switch b.state {
case connectivity.TransientFailure, connectivity.Idle, connectivity.Connecting:
// Set a failing picker if we don't have a good picker.
b.cc.UpdateState(balancer.State{ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: fmt.Errorf("name resolver error: %v", err)},
})
}
if logger.V(2) {
logger.Infof("pickfirstBalancer: ResolverError called with error %v", err)
}
if b.subConn == nil {
b.state = connectivity.TransientFailure
}
if b.state != connectivity.TransientFailure {
// The picker will not change since the balancer does not currently
// report an error.
return
}
b.cc.UpdateState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: fmt.Errorf("name resolver error: %v", err)},
})
}
func (b *pickfirstBalancer) UpdateClientConnState(cs balancer.ClientConnState) error {
if len(cs.ResolverState.Addresses) == 0 {
func (b *pickfirstBalancer) UpdateClientConnState(state balancer.ClientConnState) error {
if len(state.ResolverState.Addresses) == 0 {
// The resolver reported an empty address list. Treat it like an error by
// calling b.ResolverError.
if b.subConn != nil {
// Remove the old subConn. All addresses were removed, so it is no longer
// valid.
b.cc.RemoveSubConn(b.subConn)
b.subConn = nil
}
b.ResolverError(errors.New("produced zero addresses"))
return balancer.ErrBadResolverState
}
if b.sc == nil {
var err error
b.sc, err = b.cc.NewSubConn(cs.ResolverState.Addresses, balancer.NewSubConnOptions{})
if b.subConn != nil {
b.cc.UpdateAddresses(b.subConn, state.ResolverState.Addresses)
return nil
}
subConn, err := b.cc.NewSubConn(state.ResolverState.Addresses, balancer.NewSubConnOptions{})
if err != nil {
if logger.V(2) {
logger.Errorf("pickfirstBalancer: failed to NewSubConn: %v", err)
}
b.state = connectivity.TransientFailure
b.cc.UpdateState(balancer.State{ConnectivityState: connectivity.TransientFailure,
b.cc.UpdateState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: fmt.Errorf("error creating connection: %v", err)},
})
return balancer.ErrBadResolverState
}
b.subConn = subConn
b.state = connectivity.Idle
b.cc.UpdateState(balancer.State{ConnectivityState: connectivity.Idle, Picker: &picker{result: balancer.PickResult{SubConn: b.sc}}})
b.sc.Connect()
} else {
b.cc.UpdateAddresses(b.sc, cs.ResolverState.Addresses)
b.sc.Connect()
}
b.cc.UpdateState(balancer.State{
ConnectivityState: connectivity.Idle,
Picker: &picker{result: balancer.PickResult{SubConn: b.subConn}},
})
b.subConn.Connect()
return nil
}
func (b *pickfirstBalancer) UpdateSubConnState(sc balancer.SubConn, s balancer.SubConnState) {
func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state balancer.SubConnState) {
if logger.V(2) {
logger.Infof("pickfirstBalancer: UpdateSubConnState: %p, %v", sc, s)
logger.Infof("pickfirstBalancer: UpdateSubConnState: %p, %v", subConn, state)
}
if b.sc != sc {
if b.subConn != subConn {
if logger.V(2) {
logger.Infof("pickfirstBalancer: ignored state change because sc is not recognized")
logger.Infof("pickfirstBalancer: ignored state change because subConn is not recognized")
}
return
}
b.state = s.ConnectivityState
if s.ConnectivityState == connectivity.Shutdown {
b.sc = nil
b.state = state.ConnectivityState
if state.ConnectivityState == connectivity.Shutdown {
b.subConn = nil
return
}
switch s.ConnectivityState {
switch state.ConnectivityState {
case connectivity.Ready:
b.cc.UpdateState(balancer.State{ConnectivityState: s.ConnectivityState, Picker: &picker{result: balancer.PickResult{SubConn: sc}}})
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &picker{result: balancer.PickResult{SubConn: subConn}},
})
case connectivity.Connecting:
b.cc.UpdateState(balancer.State{ConnectivityState: s.ConnectivityState, Picker: &picker{err: balancer.ErrNoSubConnAvailable}})
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &picker{err: balancer.ErrNoSubConnAvailable},
})
case connectivity.Idle:
b.cc.UpdateState(balancer.State{ConnectivityState: s.ConnectivityState, Picker: &idlePicker{sc: sc}})
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &idlePicker{subConn: subConn},
})
case connectivity.TransientFailure:
b.cc.UpdateState(balancer.State{
ConnectivityState: s.ConnectivityState,
Picker: &picker{err: s.ConnectionError},
ConnectivityState: state.ConnectivityState,
Picker: &picker{err: state.ConnectionError},
})
}
}
@ -125,8 +153,8 @@ func (b *pickfirstBalancer) Close() {
}
func (b *pickfirstBalancer) ExitIdle() {
if b.sc != nil && b.state == connectivity.Idle {
b.sc.Connect()
if b.subConn != nil && b.state == connectivity.Idle {
b.subConn.Connect()
}
}
@ -135,18 +163,18 @@ type picker struct {
err error
}
func (p *picker) Pick(info balancer.PickInfo) (balancer.PickResult, error) {
func (p *picker) Pick(balancer.PickInfo) (balancer.PickResult, error) {
return p.result, p.err
}
// idlePicker is used when the SubConn is IDLE and kicks the SubConn into
// CONNECTING when Pick is called.
type idlePicker struct {
sc balancer.SubConn
subConn balancer.SubConn
}
func (i *idlePicker) Pick(info balancer.PickInfo) (balancer.PickResult, error) {
i.sc.Connect()
func (i *idlePicker) Pick(balancer.PickInfo) (balancer.PickResult, error) {
i.subConn.Connect()
return balancer.PickResult{}, balancer.ErrNoSubConnAvailable
}

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

@ -27,6 +27,7 @@ import (
"google.golang.org/grpc/attributes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/pretty"
"google.golang.org/grpc/serviceconfig"
)
@ -139,13 +140,18 @@ type Address struct {
// Equal returns whether a and o are identical. Metadata is compared directly,
// not with any recursive introspection.
func (a *Address) Equal(o Address) bool {
func (a Address) Equal(o Address) bool {
return a.Addr == o.Addr && a.ServerName == o.ServerName &&
a.Attributes.Equal(o.Attributes) &&
a.BalancerAttributes.Equal(o.BalancerAttributes) &&
a.Type == o.Type && a.Metadata == o.Metadata
}
// String returns JSON formatted string representation of the address.
func (a Address) String() string {
return pretty.ToJSON(a)
}
// BuildOptions includes additional information for the builder to create
// the resolver.
type BuildOptions struct {

17
vendor/google.golang.org/grpc/resolver_conn_wrapper.go generated vendored
View File

@ -19,7 +19,6 @@
package grpc
import (
"fmt"
"strings"
"sync"
@ -27,6 +26,7 @@ import (
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/internal/pretty"
"google.golang.org/grpc/resolver"
"google.golang.org/grpc/serviceconfig"
)
@ -97,10 +97,7 @@ func (ccr *ccResolverWrapper) UpdateState(s resolver.State) error {
if ccr.done.HasFired() {
return nil
}
channelz.Infof(logger, ccr.cc.channelzID, "ccResolverWrapper: sending update to cc: %v", s)
if channelz.IsOn() {
ccr.addChannelzTraceEvent(s)
}
ccr.curState = s
if err := ccr.cc.updateResolverState(ccr.curState, nil); err == balancer.ErrBadResolverState {
return balancer.ErrBadResolverState
@ -125,10 +122,7 @@ func (ccr *ccResolverWrapper) NewAddress(addrs []resolver.Address) {
if ccr.done.HasFired() {
return
}
channelz.Infof(logger, ccr.cc.channelzID, "ccResolverWrapper: sending new addresses to cc: %v", addrs)
if channelz.IsOn() {
ccr.addChannelzTraceEvent(resolver.State{Addresses: addrs, ServiceConfig: ccr.curState.ServiceConfig})
}
ccr.curState.Addresses = addrs
ccr.cc.updateResolverState(ccr.curState, nil)
}
@ -141,7 +135,7 @@ func (ccr *ccResolverWrapper) NewServiceConfig(sc string) {
if ccr.done.HasFired() {
return
}
channelz.Infof(logger, ccr.cc.channelzID, "ccResolverWrapper: got new service config: %v", sc)
channelz.Infof(logger, ccr.cc.channelzID, "ccResolverWrapper: got new service config: %s", sc)
if ccr.cc.dopts.disableServiceConfig {
channelz.Info(logger, ccr.cc.channelzID, "Service config lookups disabled; ignoring config")
return
@ -151,9 +145,7 @@ func (ccr *ccResolverWrapper) NewServiceConfig(sc string) {
channelz.Warningf(logger, ccr.cc.channelzID, "ccResolverWrapper: error parsing service config: %v", scpr.Err)
return
}
if channelz.IsOn() {
ccr.addChannelzTraceEvent(resolver.State{Addresses: ccr.curState.Addresses, ServiceConfig: scpr})
}
ccr.curState.ServiceConfig = scpr
ccr.cc.updateResolverState(ccr.curState, nil)
}
@ -180,8 +172,5 @@ func (ccr *ccResolverWrapper) addChannelzTraceEvent(s resolver.State) {
} else if len(ccr.curState.Addresses) == 0 && len(s.Addresses) > 0 {
updates = append(updates, "resolver returned new addresses")
}
channelz.AddTraceEvent(logger, ccr.cc.channelzID, 0, &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Resolver state updated: %+v (%v)", s, strings.Join(updates, "; ")),
Severity: channelz.CtInfo,
})
channelz.Infof(logger, ccr.cc.channelzID, "Resolver state updated: %s (%v)", pretty.ToJSON(s), strings.Join(updates, "; "))
}

77
vendor/google.golang.org/grpc/server.go generated vendored
View File

@ -134,7 +134,7 @@ type Server struct {
channelzRemoveOnce sync.Once
serveWG sync.WaitGroup // counts active Serve goroutines for GracefulStop
channelzID int64 // channelz unique identification number
channelzID *channelz.Identifier
czData *channelzData
serverWorkerChannels []chan *serverWorkerData
@ -584,9 +584,8 @@ func NewServer(opt ...ServerOption) *Server {
s.initServerWorkers()
}
if channelz.IsOn() {
s.channelzID = channelz.RegisterServer(&channelzServer{s}, "")
}
channelz.Info(logger, s.channelzID, "Server created")
return s
}
@ -712,7 +711,7 @@ var ErrServerStopped = errors.New("grpc: the server has been stopped")
type listenSocket struct {
net.Listener
channelzID int64
channelzID *channelz.Identifier
}
func (l *listenSocket) ChannelzMetric() *channelz.SocketInternalMetric {
@ -724,9 +723,8 @@ func (l *listenSocket) ChannelzMetric() *channelz.SocketInternalMetric {
func (l *listenSocket) Close() error {
err := l.Listener.Close()
if channelz.IsOn() {
channelz.RemoveEntry(l.channelzID)
}
channelz.Info(logger, l.channelzID, "ListenSocket deleted")
return err
}
@ -759,11 +757,6 @@ func (s *Server) Serve(lis net.Listener) error {
ls := &listenSocket{Listener: lis}
s.lis[ls] = true
if channelz.IsOn() {
ls.channelzID = channelz.RegisterListenSocket(ls, s.channelzID, lis.Addr().String())
}
s.mu.Unlock()
defer func() {
s.mu.Lock()
if s.lis != nil && s.lis[ls] {
@ -773,8 +766,16 @@ func (s *Server) Serve(lis net.Listener) error {
s.mu.Unlock()
}()
var tempDelay time.Duration // how long to sleep on accept failure
var err error
ls.channelzID, err = channelz.RegisterListenSocket(ls, s.channelzID, lis.Addr().String())
if err != nil {
s.mu.Unlock()
return err
}
s.mu.Unlock()
channelz.Info(logger, ls.channelzID, "ListenSocket created")
var tempDelay time.Duration // how long to sleep on accept failure
for {
rawConn, err := lis.Accept()
if err != nil {
@ -1709,11 +1710,7 @@ func (s *Server) Stop() {
s.done.Fire()
}()
s.channelzRemoveOnce.Do(func() {
if channelz.IsOn() {
channelz.RemoveEntry(s.channelzID)
}
})
s.channelzRemoveOnce.Do(func() { channelz.RemoveEntry(s.channelzID) })
s.mu.Lock()
listeners := s.lis
@ -1751,11 +1748,7 @@ func (s *Server) GracefulStop() {
s.quit.Fire()
defer s.done.Fire()
s.channelzRemoveOnce.Do(func() {
if channelz.IsOn() {
channelz.RemoveEntry(s.channelzID)
}
})
s.channelzRemoveOnce.Do(func() { channelz.RemoveEntry(s.channelzID) })
s.mu.Lock()
if s.conns == nil {
s.mu.Unlock()
@ -1808,12 +1801,26 @@ func (s *Server) getCodec(contentSubtype string) baseCodec {
return codec
}
// SetHeader sets the header metadata.
// When called multiple times, all the provided metadata will be merged.
// All the metadata will be sent out when one of the following happens:
// - grpc.SendHeader() is called;
// - The first response is sent out;
// - An RPC status is sent out (error or success).
// SetHeader sets the header metadata to be sent from the server to the client.
// The context provided must be the context passed to the server's handler.
//
// Streaming RPCs should prefer the SetHeader method of the ServerStream.
//
// When called multiple times, all the provided metadata will be merged. All
// the metadata will be sent out when one of the following happens:
//
// - grpc.SendHeader is called, or for streaming handlers, stream.SendHeader.
// - The first response message is sent. For unary handlers, this occurs when
// the handler returns; for streaming handlers, this can happen when stream's
// SendMsg method is called.
// - An RPC status is sent out (error or success). This occurs when the handler
// returns.
//
// SetHeader will fail if called after any of the events above.
//
// The error returned is compatible with the status package. However, the
// status code will often not match the RPC status as seen by the client
// application, and therefore, should not be relied upon for this purpose.
func SetHeader(ctx context.Context, md metadata.MD) error {
if md.Len() == 0 {
return nil
@ -1825,8 +1832,14 @@ func SetHeader(ctx context.Context, md metadata.MD) error {
return stream.SetHeader(md)
}
// SendHeader sends header metadata. It may be called at most once.
// The provided md and headers set by SetHeader() will be sent.
// SendHeader sends header metadata. It may be called at most once, and may not
// be called after any event that causes headers to be sent (see SetHeader for
// a complete list). The provided md and headers set by SetHeader() will be
// sent.
//
// The error returned is compatible with the status package. However, the
// status code will often not match the RPC status as seen by the client
// application, and therefore, should not be relied upon for this purpose.
func SendHeader(ctx context.Context, md metadata.MD) error {
stream := ServerTransportStreamFromContext(ctx)
if stream == nil {
@ -1840,6 +1853,10 @@ func SendHeader(ctx context.Context, md metadata.MD) error {
// SetTrailer sets the trailer metadata that will be sent when an RPC returns.
// When called more than once, all the provided metadata will be merged.
//
// The error returned is compatible with the status package. However, the
// status code will often not match the RPC status as seen by the client
// application, and therefore, should not be relied upon for this purpose.
func SetTrailer(ctx context.Context, md metadata.MD) error {
if md.Len() == 0 {
return nil

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

@ -381,6 +381,9 @@ func init() {
//
// If any of them is NOT *ServiceConfig, return false.
func equalServiceConfig(a, b serviceconfig.Config) bool {
if a == nil && b == nil {
return true
}
aa, ok := a.(*ServiceConfig)
if !ok {
return false

219
vendor/google.golang.org/grpc/stream.go generated vendored
View File

@ -36,6 +36,7 @@ import (
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcrand"
"google.golang.org/grpc/internal/grpcutil"
imetadata "google.golang.org/grpc/internal/metadata"
iresolver "google.golang.org/grpc/internal/resolver"
"google.golang.org/grpc/internal/serviceconfig"
"google.golang.org/grpc/internal/transport"
@ -166,6 +167,11 @@ 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) {
if md, _, ok := metadata.FromOutgoingContextRaw(ctx); ok {
if err := imetadata.Validate(md); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
}
if channelz.IsOn() {
cc.incrCallsStarted()
defer func() {
@ -297,14 +303,28 @@ func newClientStreamWithParams(ctx context.Context, desc *StreamDesc, cc *Client
}
cs.binlog = binarylog.GetMethodLogger(method)
if err := cs.newAttemptLocked(false /* isTransparent */); err != nil {
cs.attempt, err = cs.newAttemptLocked(false /* isTransparent */)
if err != nil {
cs.finish(err)
return nil, err
}
op := func(a *csAttempt) error { return a.newStream() }
// Pick the transport to use and create a new stream on the transport.
// Assign cs.attempt upon success.
op := func(a *csAttempt) error {
if err := a.getTransport(); err != nil {
return err
}
if err := a.newStream(); err != nil {
return err
}
// Because this operation is always called either here (while creating
// the clientStream) or by the retry code while locked when replaying
// the operation, it is safe to access cs.attempt directly.
cs.attempt = a
return nil
}
if err := cs.withRetry(op, func() { cs.bufferForRetryLocked(0, op) }); err != nil {
cs.finish(err)
return nil, err
}
@ -343,9 +363,15 @@ func newClientStreamWithParams(ctx context.Context, desc *StreamDesc, cc *Client
return cs, nil
}
// newAttemptLocked creates a new attempt with a transport.
// If it succeeds, then it replaces clientStream's attempt with this new attempt.
func (cs *clientStream) newAttemptLocked(isTransparent bool) (retErr error) {
// newAttemptLocked creates a new csAttempt without a transport or stream.
func (cs *clientStream) newAttemptLocked(isTransparent bool) (*csAttempt, error) {
if err := cs.ctx.Err(); err != nil {
return nil, toRPCErr(err)
}
if err := cs.cc.ctx.Err(); err != nil {
return nil, ErrClientConnClosing
}
ctx := newContextWithRPCInfo(cs.ctx, cs.callInfo.failFast, cs.callInfo.codec, cs.cp, cs.comp)
method := cs.callHdr.Method
sh := cs.cc.dopts.copts.StatsHandler
@ -379,27 +405,6 @@ func (cs *clientStream) newAttemptLocked(isTransparent bool) (retErr error) {
ctx = trace.NewContext(ctx, trInfo.tr)
}
newAttempt := &csAttempt{
ctx: ctx,
beginTime: beginTime,
cs: cs,
dc: cs.cc.dopts.dc,
statsHandler: sh,
trInfo: trInfo,
}
defer func() {
if retErr != nil {
// This attempt is not set in the clientStream, so it's finish won't
// be called. Call it here for stats and trace in case they are not
// nil.
newAttempt.finish(retErr)
}
}()
if err := ctx.Err(); err != nil {
return toRPCErr(err)
}
if cs.cc.parsedTarget.Scheme == "xds" {
// Add extra metadata (metadata that will be added by transport) to context
// so the balancer can see them.
@ -407,16 +412,32 @@ func (cs *clientStream) newAttemptLocked(isTransparent bool) (retErr error) {
"content-type", grpcutil.ContentType(cs.callHdr.ContentSubtype),
))
}
t, done, err := cs.cc.getTransport(ctx, cs.callInfo.failFast, cs.callHdr.Method)
return &csAttempt{
ctx: ctx,
beginTime: beginTime,
cs: cs,
dc: cs.cc.dopts.dc,
statsHandler: sh,
trInfo: trInfo,
}, nil
}
func (a *csAttempt) getTransport() error {
cs := a.cs
var err error
a.t, a.done, err = cs.cc.getTransport(a.ctx, cs.callInfo.failFast, cs.callHdr.Method)
if err != nil {
if de, ok := err.(dropError); ok {
err = de.error
a.drop = true
}
return err
}
if trInfo != nil {
trInfo.firstLine.SetRemoteAddr(t.RemoteAddr())
if a.trInfo != nil {
a.trInfo.firstLine.SetRemoteAddr(a.t.RemoteAddr())
}
newAttempt.t = t
newAttempt.done = done
cs.attempt = newAttempt
return nil
}
@ -425,12 +446,21 @@ func (a *csAttempt) newStream() error {
cs.callHdr.PreviousAttempts = cs.numRetries
s, err := a.t.NewStream(a.ctx, cs.callHdr)
if err != nil {
// Return without converting to an RPC error so retry code can
// inspect.
nse, ok := err.(*transport.NewStreamError)
if !ok {
// Unexpected.
return err
}
cs.attempt.s = s
cs.attempt.p = &parser{r: s}
if nse.AllowTransparentRetry {
a.allowTransparentRetry = true
}
// Unwrap and convert error.
return toRPCErr(nse.Err)
}
a.s = s
a.p = &parser{r: s}
return nil
}
@ -456,7 +486,7 @@ type clientStream struct {
retryThrottler *retryThrottler // The throttler active when the RPC began.
binlog *binarylog.MethodLogger // Binary logger, can be nil.
binlog binarylog.MethodLogger // Binary logger, can be nil.
// serverHeaderBinlogged is a boolean for whether server header has been
// logged. Server header will be logged when the first time one of those
// happens: stream.Header(), stream.Recv().
@ -508,6 +538,11 @@ type csAttempt struct {
statsHandler stats.Handler
beginTime time.Time
// set for newStream errors that may be transparently retried
allowTransparentRetry bool
// set for pick errors that are returned as a status
drop bool
}
func (cs *clientStream) commitAttemptLocked() {
@ -527,41 +562,21 @@ func (cs *clientStream) commitAttempt() {
// shouldRetry returns nil if the RPC should be retried; otherwise it returns
// the error that should be returned by the operation. If the RPC should be
// retried, the bool indicates whether it is being retried transparently.
func (cs *clientStream) shouldRetry(err error) (bool, error) {
if cs.attempt.s == nil {
// Error from NewClientStream.
nse, ok := err.(*transport.NewStreamError)
if !ok {
// Unexpected, but assume no I/O was performed and the RPC is not
// fatal, so retry indefinitely.
return true, nil
}
func (a *csAttempt) shouldRetry(err error) (bool, error) {
cs := a.cs
// Unwrap and convert error.
err = toRPCErr(nse.Err)
// Never retry DoNotRetry errors, which indicate the RPC should not be
// retried due to max header list size violation, etc.
if nse.DoNotRetry {
if cs.finished || cs.committed || a.drop {
// RPC is finished or committed or was dropped by the picker; cannot retry.
return false, err
}
// In the event of a non-IO operation error from NewStream, we never
// attempted to write anything to the wire, so we can retry
// indefinitely.
if !nse.DoNotTransparentRetry {
if a.s == nil && a.allowTransparentRetry {
return true, nil
}
}
if cs.finished || cs.committed {
// RPC is finished or committed; cannot retry.
return false, err
}
// Wait for the trailers.
unprocessed := false
if cs.attempt.s != nil {
<-cs.attempt.s.Done()
unprocessed = cs.attempt.s.Unprocessed()
if a.s != nil {
<-a.s.Done()
unprocessed = a.s.Unprocessed()
}
if cs.firstAttempt && unprocessed {
// First attempt, stream unprocessed: transparently retry.
@ -573,14 +588,14 @@ func (cs *clientStream) shouldRetry(err error) (bool, error) {
pushback := 0
hasPushback := false
if cs.attempt.s != nil {
if !cs.attempt.s.TrailersOnly() {
if a.s != nil {
if !a.s.TrailersOnly() {
return false, err
}
// TODO(retry): Move down if the spec changes to not check server pushback
// before considering this a failure for throttling.
sps := cs.attempt.s.Trailer()["grpc-retry-pushback-ms"]
sps := a.s.Trailer()["grpc-retry-pushback-ms"]
if len(sps) == 1 {
var e error
if pushback, e = strconv.Atoi(sps[0]); e != nil || pushback < 0 {
@ -597,10 +612,10 @@ func (cs *clientStream) shouldRetry(err error) (bool, error) {
}
var code codes.Code
if cs.attempt.s != nil {
code = cs.attempt.s.Status().Code()
if a.s != nil {
code = a.s.Status().Code()
} else {
code = status.Convert(err).Code()
code = status.Code(err)
}
rp := cs.methodConfig.RetryPolicy
@ -645,19 +660,24 @@ func (cs *clientStream) shouldRetry(err error) (bool, error) {
}
// Returns nil if a retry was performed and succeeded; error otherwise.
func (cs *clientStream) retryLocked(lastErr error) error {
func (cs *clientStream) retryLocked(attempt *csAttempt, lastErr error) error {
for {
cs.attempt.finish(toRPCErr(lastErr))
isTransparent, err := cs.shouldRetry(lastErr)
attempt.finish(toRPCErr(lastErr))
isTransparent, err := attempt.shouldRetry(lastErr)
if err != nil {
cs.commitAttemptLocked()
return err
}
cs.firstAttempt = false
if err := cs.newAttemptLocked(isTransparent); err != nil {
attempt, err = cs.newAttemptLocked(isTransparent)
if err != nil {
// Only returns error if the clientconn is closed or the context of
// the stream is canceled.
return err
}
if lastErr = cs.replayBufferLocked(); lastErr == nil {
// Note that the first op in the replay buffer always sets cs.attempt
// if it is able to pick a transport and create a stream.
if lastErr = cs.replayBufferLocked(attempt); lastErr == nil {
return nil
}
}
@ -667,7 +687,10 @@ func (cs *clientStream) Context() context.Context {
cs.commitAttempt()
// No need to lock before using attempt, since we know it is committed and
// cannot change.
if cs.attempt.s != nil {
return cs.attempt.s.Context()
}
return cs.ctx
}
func (cs *clientStream) withRetry(op func(a *csAttempt) error, onSuccess func()) error {
@ -697,7 +720,7 @@ func (cs *clientStream) withRetry(op func(a *csAttempt) error, onSuccess func())
cs.mu.Unlock()
return err
}
if err := cs.retryLocked(err); err != nil {
if err := cs.retryLocked(a, err); err != nil {
cs.mu.Unlock()
return err
}
@ -728,7 +751,7 @@ func (cs *clientStream) Header() (metadata.MD, error) {
cs.binlog.Log(logEntry)
cs.serverHeaderBinlogged = true
}
return m, err
return m, nil
}
func (cs *clientStream) Trailer() metadata.MD {
@ -746,10 +769,9 @@ func (cs *clientStream) Trailer() metadata.MD {
return cs.attempt.s.Trailer()
}
func (cs *clientStream) replayBufferLocked() error {
a := cs.attempt
func (cs *clientStream) replayBufferLocked(attempt *csAttempt) error {
for _, f := range cs.buffer {
if err := f(a); err != nil {
if err := f(attempt); err != nil {
return err
}
}
@ -797,22 +819,17 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
if len(payload) > *cs.callInfo.maxSendMessageSize {
return status.Errorf(codes.ResourceExhausted, "trying to send message larger than max (%d vs. %d)", len(payload), *cs.callInfo.maxSendMessageSize)
}
msgBytes := data // Store the pointer before setting to nil. For binary logging.
op := func(a *csAttempt) error {
err := a.sendMsg(m, hdr, payload, data)
// nil out the message and uncomp when replaying; they are only needed for
// stats which is disabled for subsequent attempts.
m, data = nil, nil
return err
return a.sendMsg(m, hdr, payload, data)
}
err = cs.withRetry(op, func() { cs.bufferForRetryLocked(len(hdr)+len(payload), op) })
if cs.binlog != nil && err == nil {
cs.binlog.Log(&binarylog.ClientMessage{
OnClientSide: true,
Message: msgBytes,
Message: data,
})
}
return
return err
}
func (cs *clientStream) RecvMsg(m interface{}) error {
@ -1364,8 +1381,10 @@ func (as *addrConnStream) finish(err error) {
// ServerStream defines the server-side behavior of a streaming RPC.
//
// All errors returned from ServerStream methods are compatible with the
// status package.
// Errors returned from ServerStream methods are compatible with the status
// package. However, the status code will often not match the RPC status as
// seen by the client application, and therefore, should not be relied upon for
// this purpose.
type ServerStream interface {
// SetHeader sets the header metadata. It may be called multiple times.
// When call multiple times, all the provided metadata will be merged.
@ -1428,7 +1447,7 @@ type serverStream struct {
statsHandler stats.Handler
binlog *binarylog.MethodLogger
binlog binarylog.MethodLogger
// serverHeaderBinlogged indicates whether server header has been logged. It
// will happen when one of the following two happens: stream.SendHeader(),
// stream.Send().
@ -1448,11 +1467,20 @@ func (ss *serverStream) SetHeader(md metadata.MD) error {
if md.Len() == 0 {
return nil
}
err := imetadata.Validate(md)
if err != nil {
return status.Error(codes.Internal, err.Error())
}
return ss.s.SetHeader(md)
}
func (ss *serverStream) SendHeader(md metadata.MD) error {
err := ss.t.WriteHeader(ss.s, md)
err := imetadata.Validate(md)
if err != nil {
return status.Error(codes.Internal, err.Error())
}
err = ss.t.WriteHeader(ss.s, md)
if ss.binlog != nil && !ss.serverHeaderBinlogged {
h, _ := ss.s.Header()
ss.binlog.Log(&binarylog.ServerHeader{
@ -1467,6 +1495,9 @@ func (ss *serverStream) SetTrailer(md metadata.MD) {
if md.Len() == 0 {
return
}
if err := imetadata.Validate(md); err != nil {
logger.Errorf("stream: failed to validate md when setting trailer, err: %v", err)
}
ss.s.SetTrailer(md)
}

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

@ -19,4 +19,4 @@
package grpc
// Version is the current grpc version.
const Version = "1.45.0"
const Version = "1.47.0"

665
vendor/google.golang.org/protobuf/encoding/protojson/decode.go generated vendored Normal file
View File

@ -0,0 +1,665 @@
// Copyright 2019 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 protojson
import (
"encoding/base64"
"fmt"
"math"
"strconv"
"strings"
"google.golang.org/protobuf/internal/encoding/json"
"google.golang.org/protobuf/internal/encoding/messageset"
"google.golang.org/protobuf/internal/errors"
"google.golang.org/protobuf/internal/flags"
"google.golang.org/protobuf/internal/genid"
"google.golang.org/protobuf/internal/pragma"
"google.golang.org/protobuf/internal/set"
"google.golang.org/protobuf/proto"
pref "google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/reflect/protoregistry"
)
// Unmarshal reads the given []byte into the given proto.Message.
// The provided message must be mutable (e.g., a non-nil pointer to a message).
func Unmarshal(b []byte, m proto.Message) error {
return UnmarshalOptions{}.Unmarshal(b, m)
}
// UnmarshalOptions is a configurable JSON format parser.
type UnmarshalOptions struct {
pragma.NoUnkeyedLiterals
// If AllowPartial is set, input for messages that will result in missing
// required fields will not return an error.
AllowPartial bool
// If DiscardUnknown is set, unknown fields are ignored.
DiscardUnknown bool
// Resolver is used for looking up types when unmarshaling
// google.protobuf.Any messages or extension fields.
// If nil, this defaults to using protoregistry.GlobalTypes.
Resolver interface {
protoregistry.MessageTypeResolver
protoregistry.ExtensionTypeResolver
}
}
// Unmarshal reads the given []byte and populates the given proto.Message
// using options in the UnmarshalOptions object.
// It will clear the message first before setting the fields.
// If it returns an error, the given message may be partially set.
// The provided message must be mutable (e.g., a non-nil pointer to a message).
func (o UnmarshalOptions) Unmarshal(b []byte, m proto.Message) error {
return o.unmarshal(b, m)
}
// unmarshal is a centralized function that all unmarshal operations go through.
// For profiling purposes, avoid changing the name of this function or
// introducing other code paths for unmarshal that do not go through this.
func (o UnmarshalOptions) unmarshal(b []byte, m proto.Message) error {
proto.Reset(m)
if o.Resolver == nil {
o.Resolver = protoregistry.GlobalTypes
}
dec := decoder{json.NewDecoder(b), o}
if err := dec.unmarshalMessage(m.ProtoReflect(), false); err != nil {
return err
}
// Check for EOF.
tok, err := dec.Read()
if err != nil {
return err
}
if tok.Kind() != json.EOF {
return dec.unexpectedTokenError(tok)
}
if o.AllowPartial {
return nil
}
return proto.CheckInitialized(m)
}
type decoder struct {
*json.Decoder
opts UnmarshalOptions
}
// newError returns an error object with position info.
func (d decoder) newError(pos int, f string, x ...interface{}) error {
line, column := d.Position(pos)
head := fmt.Sprintf("(line %d:%d): ", line, column)
return errors.New(head+f, x...)
}
// unexpectedTokenError returns a syntax error for the given unexpected token.
func (d decoder) unexpectedTokenError(tok json.Token) error {
return d.syntaxError(tok.Pos(), "unexpected token %s", tok.RawString())
}
// syntaxError returns a syntax error for given position.
func (d decoder) syntaxError(pos int, f string, x ...interface{}) error {
line, column := d.Position(pos)
head := fmt.Sprintf("syntax error (line %d:%d): ", line, column)
return errors.New(head+f, x...)
}
// unmarshalMessage unmarshals a message into the given protoreflect.Message.
func (d decoder) unmarshalMessage(m pref.Message, skipTypeURL bool) error {
if unmarshal := wellKnownTypeUnmarshaler(m.Descriptor().FullName()); unmarshal != nil {
return unmarshal(d, m)
}
tok, err := d.Read()
if err != nil {
return err
}
if tok.Kind() != json.ObjectOpen {
return d.unexpectedTokenError(tok)
}
messageDesc := m.Descriptor()
if !flags.ProtoLegacy && messageset.IsMessageSet(messageDesc) {
return errors.New("no support for proto1 MessageSets")
}
var seenNums set.Ints
var seenOneofs set.Ints
fieldDescs := messageDesc.Fields()
for {
// Read field name.
tok, err := d.Read()
if err != nil {
return err
}
switch tok.Kind() {
default:
return d.unexpectedTokenError(tok)
case json.ObjectClose:
return nil
case json.Name:
// Continue below.
}
name := tok.Name()
// Unmarshaling a non-custom embedded message in Any will contain the
// JSON field "@type" which should be skipped because it is not a field
// of the embedded message, but simply an artifact of the Any format.
if skipTypeURL && name == "@type" {
d.Read()
continue
}
// Get the FieldDescriptor.
var fd pref.FieldDescriptor
if strings.HasPrefix(name, "[") && strings.HasSuffix(name, "]") {
// Only extension names are in [name] format.
extName := pref.FullName(name[1 : len(name)-1])
extType, err := d.opts.Resolver.FindExtensionByName(extName)
if err != nil && err != protoregistry.NotFound {
return d.newError(tok.Pos(), "unable to resolve %s: %v", tok.RawString(), err)
}
if extType != nil {
fd = extType.TypeDescriptor()
if !messageDesc.ExtensionRanges().Has(fd.Number()) || fd.ContainingMessage().FullName() != messageDesc.FullName() {
return d.newError(tok.Pos(), "message %v cannot be extended by %v", messageDesc.FullName(), fd.FullName())
}
}
} else {
// The name can either be the JSON name or the proto field name.
fd = fieldDescs.ByJSONName(name)
if fd == nil {
fd = fieldDescs.ByTextName(name)
}
}
if flags.ProtoLegacy {
if fd != nil && fd.IsWeak() && fd.Message().IsPlaceholder() {
fd = nil // reset since the weak reference is not linked in
}
}
if fd == nil {
// Field is unknown.
if d.opts.DiscardUnknown {
if err := d.skipJSONValue(); err != nil {
return err
}
continue
}
return d.newError(tok.Pos(), "unknown field %v", tok.RawString())
}
// Do not allow duplicate fields.
num := uint64(fd.Number())
if seenNums.Has(num) {
return d.newError(tok.Pos(), "duplicate field %v", tok.RawString())
}
seenNums.Set(num)
// No need to set values for JSON null unless the field type is
// google.protobuf.Value or google.protobuf.NullValue.
if tok, _ := d.Peek(); tok.Kind() == json.Null && !isKnownValue(fd) && !isNullValue(fd) {
d.Read()
continue
}
switch {
case fd.IsList():
list := m.Mutable(fd).List()
if err := d.unmarshalList(list, fd); err != nil {
return err
}
case fd.IsMap():
mmap := m.Mutable(fd).Map()
if err := d.unmarshalMap(mmap, fd); err != nil {
return err
}
default:
// If field is a oneof, check if it has already been set.
if od := fd.ContainingOneof(); od != nil {
idx := uint64(od.Index())
if seenOneofs.Has(idx) {
return d.newError(tok.Pos(), "error parsing %s, oneof %v is already set", tok.RawString(), od.FullName())
}
seenOneofs.Set(idx)
}
// Required or optional fields.
if err := d.unmarshalSingular(m, fd); err != nil {
return err
}
}
}
}
func isKnownValue(fd pref.FieldDescriptor) bool {
md := fd.Message()
return md != nil && md.FullName() == genid.Value_message_fullname
}
func isNullValue(fd pref.FieldDescriptor) bool {
ed := fd.Enum()
return ed != nil && ed.FullName() == genid.NullValue_enum_fullname
}
// unmarshalSingular unmarshals to the non-repeated field specified
// by the given FieldDescriptor.
func (d decoder) unmarshalSingular(m pref.Message, fd pref.FieldDescriptor) error {
var val pref.Value
var err error
switch fd.Kind() {
case pref.MessageKind, pref.GroupKind:
val = m.NewField(fd)
err = d.unmarshalMessage(val.Message(), false)
default:
val, err = d.unmarshalScalar(fd)
}
if err != nil {
return err
}
m.Set(fd, val)
return nil
}
// unmarshalScalar unmarshals to a scalar/enum protoreflect.Value specified by
// the given FieldDescriptor.
func (d decoder) unmarshalScalar(fd pref.FieldDescriptor) (pref.Value, error) {
const b32 int = 32
const b64 int = 64
tok, err := d.Read()
if err != nil {
return pref.Value{}, err
}
kind := fd.Kind()
switch kind {
case pref.BoolKind:
if tok.Kind() == json.Bool {
return pref.ValueOfBool(tok.Bool()), nil
}
case pref.Int32Kind, pref.Sint32Kind, pref.Sfixed32Kind:
if v, ok := unmarshalInt(tok, b32); ok {
return v, nil
}
case pref.Int64Kind, pref.Sint64Kind, pref.Sfixed64Kind:
if v, ok := unmarshalInt(tok, b64); ok {
return v, nil
}
case pref.Uint32Kind, pref.Fixed32Kind:
if v, ok := unmarshalUint(tok, b32); ok {
return v, nil
}
case pref.Uint64Kind, pref.Fixed64Kind:
if v, ok := unmarshalUint(tok, b64); ok {
return v, nil
}
case pref.FloatKind:
if v, ok := unmarshalFloat(tok, b32); ok {
return v, nil
}
case pref.DoubleKind:
if v, ok := unmarshalFloat(tok, b64); ok {
return v, nil
}
case pref.StringKind:
if tok.Kind() == json.String {
return pref.ValueOfString(tok.ParsedString()), nil
}
case pref.BytesKind:
if v, ok := unmarshalBytes(tok); ok {
return v, nil
}
case pref.EnumKind:
if v, ok := unmarshalEnum(tok, fd); ok {
return v, nil
}
default:
panic(fmt.Sprintf("unmarshalScalar: invalid scalar kind %v", kind))
}
return pref.Value{}, d.newError(tok.Pos(), "invalid value for %v type: %v", kind, tok.RawString())
}
func unmarshalInt(tok json.Token, bitSize int) (pref.Value, bool) {
switch tok.Kind() {
case json.Number:
return getInt(tok, bitSize)
case json.String:
// Decode number from string.
s := strings.TrimSpace(tok.ParsedString())
if len(s) != len(tok.ParsedString()) {
return pref.Value{}, false
}
dec := json.NewDecoder([]byte(s))
tok, err := dec.Read()
if err != nil {
return pref.Value{}, false
}
return getInt(tok, bitSize)
}
return pref.Value{}, false
}
func getInt(tok json.Token, bitSize int) (pref.Value, bool) {
n, ok := tok.Int(bitSize)
if !ok {
return pref.Value{}, false
}
if bitSize == 32 {
return pref.ValueOfInt32(int32(n)), true
}
return pref.ValueOfInt64(n), true
}
func unmarshalUint(tok json.Token, bitSize int) (pref.Value, bool) {
switch tok.Kind() {
case json.Number:
return getUint(tok, bitSize)
case json.String:
// Decode number from string.
s := strings.TrimSpace(tok.ParsedString())
if len(s) != len(tok.ParsedString()) {
return pref.Value{}, false
}
dec := json.NewDecoder([]byte(s))
tok, err := dec.Read()
if err != nil {
return pref.Value{}, false
}
return getUint(tok, bitSize)
}
return pref.Value{}, false
}
func getUint(tok json.Token, bitSize int) (pref.Value, bool) {
n, ok := tok.Uint(bitSize)
if !ok {
return pref.Value{}, false
}
if bitSize == 32 {
return pref.ValueOfUint32(uint32(n)), true
}
return pref.ValueOfUint64(n), true
}
func unmarshalFloat(tok json.Token, bitSize int) (pref.Value, bool) {
switch tok.Kind() {
case json.Number:
return getFloat(tok, bitSize)
case json.String:
s := tok.ParsedString()
switch s {
case "NaN":
if bitSize == 32 {
return pref.ValueOfFloat32(float32(math.NaN())), true
}
return pref.ValueOfFloat64(math.NaN()), true
case "Infinity":
if bitSize == 32 {
return pref.ValueOfFloat32(float32(math.Inf(+1))), true
}
return pref.ValueOfFloat64(math.Inf(+1)), true
case "-Infinity":
if bitSize == 32 {
return pref.ValueOfFloat32(float32(math.Inf(-1))), true
}
return pref.ValueOfFloat64(math.Inf(-1)), true
}
// Decode number from string.
if len(s) != len(strings.TrimSpace(s)) {
return pref.Value{}, false
}
dec := json.NewDecoder([]byte(s))
tok, err := dec.Read()
if err != nil {
return pref.Value{}, false
}
return getFloat(tok, bitSize)
}
return pref.Value{}, false
}
func getFloat(tok json.Token, bitSize int) (pref.Value, bool) {
n, ok := tok.Float(bitSize)
if !ok {
return pref.Value{}, false
}
if bitSize == 32 {
return pref.ValueOfFloat32(float32(n)), true
}
return pref.ValueOfFloat64(n), true
}
func unmarshalBytes(tok json.Token) (pref.Value, bool) {
if tok.Kind() != json.String {
return pref.Value{}, false
}
s := tok.ParsedString()
enc := base64.StdEncoding
if strings.ContainsAny(s, "-_") {
enc = base64.URLEncoding
}
if len(s)%4 != 0 {
enc = enc.WithPadding(base64.NoPadding)
}
b, err := enc.DecodeString(s)
if err != nil {
return pref.Value{}, false
}
return pref.ValueOfBytes(b), true
}
func unmarshalEnum(tok json.Token, fd pref.FieldDescriptor) (pref.Value, bool) {
switch tok.Kind() {
case json.String:
// Lookup EnumNumber based on name.
s := tok.ParsedString()
if enumVal := fd.Enum().Values().ByName(pref.Name(s)); enumVal != nil {
return pref.ValueOfEnum(enumVal.Number()), true
}
case json.Number:
if n, ok := tok.Int(32); ok {
return pref.ValueOfEnum(pref.EnumNumber(n)), true
}
case json.Null:
// This is only valid for google.protobuf.NullValue.
if isNullValue(fd) {
return pref.ValueOfEnum(0), true
}
}
return pref.Value{}, false
}
func (d decoder) unmarshalList(list pref.List, fd pref.FieldDescriptor) error {
tok, err := d.Read()
if err != nil {
return err
}
if tok.Kind() != json.ArrayOpen {
return d.unexpectedTokenError(tok)
}
switch fd.Kind() {
case pref.MessageKind, pref.GroupKind:
for {
tok, err := d.Peek()
if err != nil {
return err
}
if tok.Kind() == json.ArrayClose {
d.Read()
return nil
}
val := list.NewElement()
if err := d.unmarshalMessage(val.Message(), false); err != nil {
return err
}
list.Append(val)
}
default:
for {
tok, err := d.Peek()
if err != nil {
return err
}
if tok.Kind() == json.ArrayClose {
d.Read()
return nil
}
val, err := d.unmarshalScalar(fd)
if err != nil {
return err
}
list.Append(val)
}
}
return nil
}
func (d decoder) unmarshalMap(mmap pref.Map, fd pref.FieldDescriptor) error {
tok, err := d.Read()
if err != nil {
return err
}
if tok.Kind() != json.ObjectOpen {
return d.unexpectedTokenError(tok)
}
// Determine ahead whether map entry is a scalar type or a message type in
// order to call the appropriate unmarshalMapValue func inside the for loop
// below.
var unmarshalMapValue func() (pref.Value, error)
switch fd.MapValue().Kind() {
case pref.MessageKind, pref.GroupKind:
unmarshalMapValue = func() (pref.Value, error) {
val := mmap.NewValue()
if err := d.unmarshalMessage(val.Message(), false); err != nil {
return pref.Value{}, err
}
return val, nil
}
default:
unmarshalMapValue = func() (pref.Value, error) {
return d.unmarshalScalar(fd.MapValue())
}
}
Loop:
for {
// Read field name.
tok, err := d.Read()
if err != nil {
return err
}
switch tok.Kind() {
default:
return d.unexpectedTokenError(tok)
case json.ObjectClose:
break Loop
case json.Name:
// Continue.
}
// Unmarshal field name.
pkey, err := d.unmarshalMapKey(tok, fd.MapKey())
if err != nil {
return err
}
// Check for duplicate field name.
if mmap.Has(pkey) {
return d.newError(tok.Pos(), "duplicate map key %v", tok.RawString())
}
// Read and unmarshal field value.
pval, err := unmarshalMapValue()
if err != nil {
return err
}
mmap.Set(pkey, pval)
}
return nil
}
// unmarshalMapKey converts given token of Name kind into a protoreflect.MapKey.
// A map key type is any integral or string type.
func (d decoder) unmarshalMapKey(tok json.Token, fd pref.FieldDescriptor) (pref.MapKey, error) {
const b32 = 32
const b64 = 64
const base10 = 10
name := tok.Name()
kind := fd.Kind()
switch kind {
case pref.StringKind:
return pref.ValueOfString(name).MapKey(), nil
case pref.BoolKind:
switch name {
case "true":
return pref.ValueOfBool(true).MapKey(), nil
case "false":
return pref.ValueOfBool(false).MapKey(), nil
}
case pref.Int32Kind, pref.Sint32Kind, pref.Sfixed32Kind:
if n, err := strconv.ParseInt(name, base10, b32); err == nil {
return pref.ValueOfInt32(int32(n)).MapKey(), nil
}
case pref.Int64Kind, pref.Sint64Kind, pref.Sfixed64Kind:
if n, err := strconv.ParseInt(name, base10, b64); err == nil {
return pref.ValueOfInt64(int64(n)).MapKey(), nil
}
case pref.Uint32Kind, pref.Fixed32Kind:
if n, err := strconv.ParseUint(name, base10, b32); err == nil {
return pref.ValueOfUint32(uint32(n)).MapKey(), nil
}
case pref.Uint64Kind, pref.Fixed64Kind:
if n, err := strconv.ParseUint(name, base10, b64); err == nil {
return pref.ValueOfUint64(uint64(n)).MapKey(), nil
}
default:
panic(fmt.Sprintf("invalid kind for map key: %v", kind))
}
return pref.MapKey{}, d.newError(tok.Pos(), "invalid value for %v key: %s", kind, tok.RawString())
}

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// Copyright 2019 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 protojson marshals and unmarshals protocol buffer messages as JSON
// format. It follows the guide at
// https://developers.google.com/protocol-buffers/docs/proto3#json.
//
// This package produces a different output than the standard "encoding/json"
// package, which does not operate correctly on protocol buffer messages.
package protojson

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// Copyright 2019 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 protojson
import (
"encoding/base64"
"fmt"
"google.golang.org/protobuf/internal/encoding/json"
"google.golang.org/protobuf/internal/encoding/messageset"
"google.golang.org/protobuf/internal/errors"
"google.golang.org/protobuf/internal/filedesc"
"google.golang.org/protobuf/internal/flags"
"google.golang.org/protobuf/internal/genid"
"google.golang.org/protobuf/internal/order"
"google.golang.org/protobuf/internal/pragma"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
pref "google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/reflect/protoregistry"
)
const defaultIndent = " "
// Format formats the message as a multiline string.
// This function is only intended for human consumption and ignores errors.
// Do not depend on the output being stable. It may change over time across
// different versions of the program.
func Format(m proto.Message) string {
return MarshalOptions{Multiline: true}.Format(m)
}
// Marshal writes the given proto.Message in JSON format using default options.
// Do not depend on the output being stable. It may change over time across
// different versions of the program.
func Marshal(m proto.Message) ([]byte, error) {
return MarshalOptions{}.Marshal(m)
}
// MarshalOptions is a configurable JSON format marshaler.
type MarshalOptions struct {
pragma.NoUnkeyedLiterals
// Multiline specifies whether the marshaler should format the output in
// indented-form with every textual element on a new line.
// If Indent is an empty string, then an arbitrary indent is chosen.
Multiline bool
// Indent specifies the set of indentation characters to use in a multiline
// formatted output such that every entry is preceded by Indent and
// terminated by a newline. If non-empty, then Multiline is treated as true.
// Indent can only be composed of space or tab characters.
Indent string
// AllowPartial allows messages that have missing required fields to marshal
// without returning an error. If AllowPartial is false (the default),
// Marshal will return error if there are any missing required fields.
AllowPartial bool
// UseProtoNames uses proto field name instead of lowerCamelCase name in JSON
// field names.
UseProtoNames bool
// UseEnumNumbers emits enum values as numbers.
UseEnumNumbers bool
// EmitUnpopulated specifies whether to emit unpopulated fields. It does not
// emit unpopulated oneof fields or unpopulated extension fields.
// The JSON value emitted for unpopulated fields are as follows:
// ╔═══════╤════════════════════════════╗
// ║ JSON │ Protobuf field ║
// ╠═══════╪════════════════════════════╣
// ║ false │ proto3 boolean fields ║
// ║ 0 │ proto3 numeric fields ║
// ║ "" │ proto3 string/bytes fields ║
// ║ null │ proto2 scalar fields ║
// ║ null │ message fields ║
// ║ [] │ list fields ║
// ║ {} │ map fields ║
// ╚═══════╧════════════════════════════╝
EmitUnpopulated bool
// Resolver is used for looking up types when expanding google.protobuf.Any
// messages. If nil, this defaults to using protoregistry.GlobalTypes.
Resolver interface {
protoregistry.ExtensionTypeResolver
protoregistry.MessageTypeResolver
}
}
// Format formats the message as a string.
// This method is only intended for human consumption and ignores errors.
// Do not depend on the output being stable. It may change over time across
// different versions of the program.
func (o MarshalOptions) Format(m proto.Message) string {
if m == nil || !m.ProtoReflect().IsValid() {
return "<nil>" // invalid syntax, but okay since this is for debugging
}
o.AllowPartial = true
b, _ := o.Marshal(m)
return string(b)
}
// Marshal marshals the given proto.Message in the JSON format using options in
// MarshalOptions. Do not depend on the output being stable. It may change over
// time across different versions of the program.
func (o MarshalOptions) Marshal(m proto.Message) ([]byte, error) {
return o.marshal(m)
}
// marshal is a centralized function that all marshal operations go through.
// For profiling purposes, avoid changing the name of this function or
// introducing other code paths for marshal that do not go through this.
func (o MarshalOptions) marshal(m proto.Message) ([]byte, error) {
if o.Multiline && o.Indent == "" {
o.Indent = defaultIndent
}
if o.Resolver == nil {
o.Resolver = protoregistry.GlobalTypes
}
internalEnc, err := json.NewEncoder(o.Indent)
if err != nil {
return nil, err
}
// Treat nil message interface as an empty message,
// in which case the output in an empty JSON object.
if m == nil {
return []byte("{}"), nil
}
enc := encoder{internalEnc, o}
if err := enc.marshalMessage(m.ProtoReflect(), ""); err != nil {
return nil, err
}
if o.AllowPartial {
return enc.Bytes(), nil
}
return enc.Bytes(), proto.CheckInitialized(m)
}
type encoder struct {
*json.Encoder
opts MarshalOptions
}
// typeFieldDesc is a synthetic field descriptor used for the "@type" field.
var typeFieldDesc = func() protoreflect.FieldDescriptor {
var fd filedesc.Field
fd.L0.FullName = "@type"
fd.L0.Index = -1
fd.L1.Cardinality = protoreflect.Optional
fd.L1.Kind = protoreflect.StringKind
return &fd
}()
// typeURLFieldRanger wraps a protoreflect.Message and modifies its Range method
// to additionally iterate over a synthetic field for the type URL.
type typeURLFieldRanger struct {
order.FieldRanger
typeURL string
}
func (m typeURLFieldRanger) Range(f func(pref.FieldDescriptor, pref.Value) bool) {
if !f(typeFieldDesc, pref.ValueOfString(m.typeURL)) {
return
}
m.FieldRanger.Range(f)
}
// unpopulatedFieldRanger wraps a protoreflect.Message and modifies its Range
// method to additionally iterate over unpopulated fields.
type unpopulatedFieldRanger struct{ pref.Message }
func (m unpopulatedFieldRanger) Range(f func(pref.FieldDescriptor, pref.Value) bool) {
fds := m.Descriptor().Fields()
for i := 0; i < fds.Len(); i++ {
fd := fds.Get(i)
if m.Has(fd) || fd.ContainingOneof() != nil {
continue // ignore populated fields and fields within a oneofs
}
v := m.Get(fd)
isProto2Scalar := fd.Syntax() == pref.Proto2 && fd.Default().IsValid()
isSingularMessage := fd.Cardinality() != pref.Repeated && fd.Message() != nil
if isProto2Scalar || isSingularMessage {
v = pref.Value{} // use invalid value to emit null
}
if !f(fd, v) {
return
}
}
m.Message.Range(f)
}
// marshalMessage marshals the fields in the given protoreflect.Message.
// If the typeURL is non-empty, then a synthetic "@type" field is injected
// containing the URL as the value.
func (e encoder) marshalMessage(m pref.Message, typeURL string) error {
if !flags.ProtoLegacy && messageset.IsMessageSet(m.Descriptor()) {
return errors.New("no support for proto1 MessageSets")
}
if marshal := wellKnownTypeMarshaler(m.Descriptor().FullName()); marshal != nil {
return marshal(e, m)
}
e.StartObject()
defer e.EndObject()
var fields order.FieldRanger = m
if e.opts.EmitUnpopulated {
fields = unpopulatedFieldRanger{m}
}
if typeURL != "" {
fields = typeURLFieldRanger{fields, typeURL}
}
var err error
order.RangeFields(fields, order.IndexNameFieldOrder, func(fd pref.FieldDescriptor, v pref.Value) bool {
name := fd.JSONName()
if e.opts.UseProtoNames {
name = fd.TextName()
}
if err = e.WriteName(name); err != nil {
return false
}
if err = e.marshalValue(v, fd); err != nil {
return false
}
return true
})
return err
}
// marshalValue marshals the given protoreflect.Value.
func (e encoder) marshalValue(val pref.Value, fd pref.FieldDescriptor) error {
switch {
case fd.IsList():
return e.marshalList(val.List(), fd)
case fd.IsMap():
return e.marshalMap(val.Map(), fd)
default:
return e.marshalSingular(val, fd)
}
}
// marshalSingular marshals the given non-repeated field value. This includes
// all scalar types, enums, messages, and groups.
func (e encoder) marshalSingular(val pref.Value, fd pref.FieldDescriptor) error {
if !val.IsValid() {
e.WriteNull()
return nil
}
switch kind := fd.Kind(); kind {
case pref.BoolKind:
e.WriteBool(val.Bool())
case pref.StringKind:
if e.WriteString(val.String()) != nil {
return errors.InvalidUTF8(string(fd.FullName()))
}
case pref.Int32Kind, pref.Sint32Kind, pref.Sfixed32Kind:
e.WriteInt(val.Int())
case pref.Uint32Kind, pref.Fixed32Kind:
e.WriteUint(val.Uint())
case pref.Int64Kind, pref.Sint64Kind, pref.Uint64Kind,
pref.Sfixed64Kind, pref.Fixed64Kind:
// 64-bit integers are written out as JSON string.
e.WriteString(val.String())
case pref.FloatKind:
// Encoder.WriteFloat handles the special numbers NaN and infinites.
e.WriteFloat(val.Float(), 32)
case pref.DoubleKind:
// Encoder.WriteFloat handles the special numbers NaN and infinites.
e.WriteFloat(val.Float(), 64)
case pref.BytesKind:
e.WriteString(base64.StdEncoding.EncodeToString(val.Bytes()))
case pref.EnumKind:
if fd.Enum().FullName() == genid.NullValue_enum_fullname {
e.WriteNull()
} else {
desc := fd.Enum().Values().ByNumber(val.Enum())
if e.opts.UseEnumNumbers || desc == nil {
e.WriteInt(int64(val.Enum()))
} else {
e.WriteString(string(desc.Name()))
}
}
case pref.MessageKind, pref.GroupKind:
if err := e.marshalMessage(val.Message(), ""); err != nil {
return err
}
default:
panic(fmt.Sprintf("%v has unknown kind: %v", fd.FullName(), kind))
}
return nil
}
// marshalList marshals the given protoreflect.List.
func (e encoder) marshalList(list pref.List, fd pref.FieldDescriptor) error {
e.StartArray()
defer e.EndArray()
for i := 0; i < list.Len(); i++ {
item := list.Get(i)
if err := e.marshalSingular(item, fd); err != nil {
return err
}
}
return nil
}
// marshalMap marshals given protoreflect.Map.
func (e encoder) marshalMap(mmap pref.Map, fd pref.FieldDescriptor) error {
e.StartObject()
defer e.EndObject()
var err error
order.RangeEntries(mmap, order.GenericKeyOrder, func(k pref.MapKey, v pref.Value) bool {
if err = e.WriteName(k.String()); err != nil {
return false
}
if err = e.marshalSingular(v, fd.MapValue()); err != nil {
return false
}
return true
})
return err
}

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vendor/google.golang.org/protobuf/encoding/protojson/well_known_types.go generated vendored Normal file
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// Copyright 2019 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 protojson
import (
"bytes"
"fmt"
"math"
"strconv"
"strings"
"time"
"google.golang.org/protobuf/internal/encoding/json"
"google.golang.org/protobuf/internal/errors"
"google.golang.org/protobuf/internal/genid"
"google.golang.org/protobuf/internal/strs"
"google.golang.org/protobuf/proto"
pref "google.golang.org/protobuf/reflect/protoreflect"
)
type marshalFunc func(encoder, pref.Message) error
// wellKnownTypeMarshaler returns a marshal function if the message type
// has specialized serialization behavior. It returns nil otherwise.
func wellKnownTypeMarshaler(name pref.FullName) marshalFunc {
if name.Parent() == genid.GoogleProtobuf_package {
switch name.Name() {
case genid.Any_message_name:
return encoder.marshalAny
case genid.Timestamp_message_name:
return encoder.marshalTimestamp
case genid.Duration_message_name:
return encoder.marshalDuration
case genid.BoolValue_message_name,
genid.Int32Value_message_name,
genid.Int64Value_message_name,
genid.UInt32Value_message_name,
genid.UInt64Value_message_name,
genid.FloatValue_message_name,
genid.DoubleValue_message_name,
genid.StringValue_message_name,
genid.BytesValue_message_name:
return encoder.marshalWrapperType
case genid.Struct_message_name:
return encoder.marshalStruct
case genid.ListValue_message_name:
return encoder.marshalListValue
case genid.Value_message_name:
return encoder.marshalKnownValue
case genid.FieldMask_message_name:
return encoder.marshalFieldMask
case genid.Empty_message_name:
return encoder.marshalEmpty
}
}
return nil
}
type unmarshalFunc func(decoder, pref.Message) error
// wellKnownTypeUnmarshaler returns a unmarshal function if the message type
// has specialized serialization behavior. It returns nil otherwise.
func wellKnownTypeUnmarshaler(name pref.FullName) unmarshalFunc {
if name.Parent() == genid.GoogleProtobuf_package {
switch name.Name() {
case genid.Any_message_name:
return decoder.unmarshalAny
case genid.Timestamp_message_name:
return decoder.unmarshalTimestamp
case genid.Duration_message_name:
return decoder.unmarshalDuration
case genid.BoolValue_message_name,
genid.Int32Value_message_name,
genid.Int64Value_message_name,
genid.UInt32Value_message_name,
genid.UInt64Value_message_name,
genid.FloatValue_message_name,
genid.DoubleValue_message_name,
genid.StringValue_message_name,
genid.BytesValue_message_name:
return decoder.unmarshalWrapperType
case genid.Struct_message_name:
return decoder.unmarshalStruct
case genid.ListValue_message_name:
return decoder.unmarshalListValue
case genid.Value_message_name:
return decoder.unmarshalKnownValue
case genid.FieldMask_message_name:
return decoder.unmarshalFieldMask
case genid.Empty_message_name:
return decoder.unmarshalEmpty
}
}
return nil
}
// The JSON representation of an Any message uses the regular representation of
// the deserialized, embedded message, with an additional field `@type` which
// contains the type URL. 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.
func (e encoder) marshalAny(m pref.Message) error {
fds := m.Descriptor().Fields()
fdType := fds.ByNumber(genid.Any_TypeUrl_field_number)
fdValue := fds.ByNumber(genid.Any_Value_field_number)
if !m.Has(fdType) {
if !m.Has(fdValue) {
// If message is empty, marshal out empty JSON object.
e.StartObject()
e.EndObject()
return nil
} else {
// Return error if type_url field is not set, but value is set.
return errors.New("%s: %v is not set", genid.Any_message_fullname, genid.Any_TypeUrl_field_name)
}
}
typeVal := m.Get(fdType)
valueVal := m.Get(fdValue)
// Resolve the type in order to unmarshal value field.
typeURL := typeVal.String()
emt, err := e.opts.Resolver.FindMessageByURL(typeURL)
if err != nil {
return errors.New("%s: unable to resolve %q: %v", genid.Any_message_fullname, typeURL, err)
}
em := emt.New()
err = proto.UnmarshalOptions{
AllowPartial: true, // never check required fields inside an Any
Resolver: e.opts.Resolver,
}.Unmarshal(valueVal.Bytes(), em.Interface())
if err != nil {
return errors.New("%s: unable to unmarshal %q: %v", genid.Any_message_fullname, typeURL, err)
}
// If type of value has custom JSON encoding, marshal out a field "value"
// with corresponding custom JSON encoding of the embedded message as a
// field.
if marshal := wellKnownTypeMarshaler(emt.Descriptor().FullName()); marshal != nil {
e.StartObject()
defer e.EndObject()
// Marshal out @type field.
e.WriteName("@type")
if err := e.WriteString(typeURL); err != nil {
return err
}
e.WriteName("value")
return marshal(e, em)
}
// Else, marshal out the embedded message's fields in this Any object.
if err := e.marshalMessage(em, typeURL); err != nil {
return err
}
return nil
}
func (d decoder) unmarshalAny(m pref.Message) error {
// Peek to check for json.ObjectOpen to avoid advancing a read.
start, err := d.Peek()
if err != nil {
return err
}
if start.Kind() != json.ObjectOpen {
return d.unexpectedTokenError(start)
}
// Use another decoder to parse the unread bytes for @type field. This
// avoids advancing a read from current decoder because the current JSON
// object may contain the fields of the embedded type.
dec := decoder{d.Clone(), UnmarshalOptions{}}
tok, err := findTypeURL(dec)
switch err {
case errEmptyObject:
// An empty JSON object translates to an empty Any message.
d.Read() // Read json.ObjectOpen.
d.Read() // Read json.ObjectClose.
return nil
case errMissingType:
if d.opts.DiscardUnknown {
// Treat all fields as unknowns, similar to an empty object.
return d.skipJSONValue()
}
// Use start.Pos() for line position.
return d.newError(start.Pos(), err.Error())
default:
if err != nil {
return err
}
}
typeURL := tok.ParsedString()
emt, err := d.opts.Resolver.FindMessageByURL(typeURL)
if err != nil {
return d.newError(tok.Pos(), "unable to resolve %v: %q", tok.RawString(), err)
}
// Create new message for the embedded message type and unmarshal into it.
em := emt.New()
if unmarshal := wellKnownTypeUnmarshaler(emt.Descriptor().FullName()); unmarshal != nil {
// If embedded message is a custom type,
// unmarshal the JSON "value" field into it.
if err := d.unmarshalAnyValue(unmarshal, em); err != nil {
return err
}
} else {
// Else unmarshal the current JSON object into it.
if err := d.unmarshalMessage(em, true); err != nil {
return err
}
}
// Serialize the embedded message and assign the resulting bytes to the
// proto value field.
b, err := proto.MarshalOptions{
AllowPartial: true, // No need to check required fields inside an Any.
Deterministic: true,
}.Marshal(em.Interface())
if err != nil {
return d.newError(start.Pos(), "error in marshaling Any.value field: %v", err)
}
fds := m.Descriptor().Fields()
fdType := fds.ByNumber(genid.Any_TypeUrl_field_number)
fdValue := fds.ByNumber(genid.Any_Value_field_number)
m.Set(fdType, pref.ValueOfString(typeURL))
m.Set(fdValue, pref.ValueOfBytes(b))
return nil
}
var errEmptyObject = fmt.Errorf(`empty object`)
var errMissingType = fmt.Errorf(`missing "@type" field`)
// findTypeURL returns the token for the "@type" field value from the given
// JSON bytes. It is expected that the given bytes start with json.ObjectOpen.
// It returns errEmptyObject if the JSON object is empty or errMissingType if
// @type field does not exist. It returns other error if the @type field is not
// valid or other decoding issues.
func findTypeURL(d decoder) (json.Token, error) {
var typeURL string
var typeTok json.Token
numFields := 0
// Skip start object.
d.Read()
Loop:
for {
tok, err := d.Read()
if err != nil {
return json.Token{}, err
}
switch tok.Kind() {
case json.ObjectClose:
if typeURL == "" {
// Did not find @type field.
if numFields > 0 {
return json.Token{}, errMissingType
}
return json.Token{}, errEmptyObject
}
break Loop
case json.Name:
numFields++
if tok.Name() != "@type" {
// Skip value.
if err := d.skipJSONValue(); err != nil {
return json.Token{}, err
}
continue
}
// Return error if this was previously set already.
if typeURL != "" {
return json.Token{}, d.newError(tok.Pos(), `duplicate "@type" field`)
}
// Read field value.
tok, err := d.Read()
if err != nil {
return json.Token{}, err
}
if tok.Kind() != json.String {
return json.Token{}, d.newError(tok.Pos(), `@type field value is not a string: %v`, tok.RawString())
}
typeURL = tok.ParsedString()
if typeURL == "" {
return json.Token{}, d.newError(tok.Pos(), `@type field contains empty value`)
}
typeTok = tok
}
}
return typeTok, nil
}
// skipJSONValue parses a JSON value (null, boolean, string, number, object and
// array) in order to advance the read to the next JSON value. It relies on
// the decoder returning an error if the types are not in valid sequence.
func (d decoder) skipJSONValue() error {
tok, err := d.Read()
if err != nil {
return err
}
// Only need to continue reading for objects and arrays.
switch tok.Kind() {
case json.ObjectOpen:
for {
tok, err := d.Read()
if err != nil {
return err
}
switch tok.Kind() {
case json.ObjectClose:
return nil
case json.Name:
// Skip object field value.
if err := d.skipJSONValue(); err != nil {
return err
}
}
}
case json.ArrayOpen:
for {
tok, err := d.Peek()
if err != nil {
return err
}
switch tok.Kind() {
case json.ArrayClose:
d.Read()
return nil
default:
// Skip array item.
if err := d.skipJSONValue(); err != nil {
return err
}
}
}
}
return nil
}
// unmarshalAnyValue unmarshals the given custom-type message from the JSON
// object's "value" field.
func (d decoder) unmarshalAnyValue(unmarshal unmarshalFunc, m pref.Message) error {
// Skip ObjectOpen, and start reading the fields.
d.Read()
var found bool // Used for detecting duplicate "value".
for {
tok, err := d.Read()
if err != nil {
return err
}
switch tok.Kind() {
case json.ObjectClose:
if !found {
return d.newError(tok.Pos(), `missing "value" field`)
}
return nil
case json.Name:
switch tok.Name() {
case "@type":
// Skip the value as this was previously parsed already.
d.Read()
case "value":
if found {
return d.newError(tok.Pos(), `duplicate "value" field`)
}
// Unmarshal the field value into the given message.
if err := unmarshal(d, m); err != nil {
return err
}
found = true
default:
if d.opts.DiscardUnknown {
if err := d.skipJSONValue(); err != nil {
return err
}
continue
}
return d.newError(tok.Pos(), "unknown field %v", tok.RawString())
}
}
}
}
// Wrapper types are encoded as JSON primitives like string, number or boolean.
func (e encoder) marshalWrapperType(m pref.Message) error {
fd := m.Descriptor().Fields().ByNumber(genid.WrapperValue_Value_field_number)
val := m.Get(fd)
return e.marshalSingular(val, fd)
}
func (d decoder) unmarshalWrapperType(m pref.Message) error {
fd := m.Descriptor().Fields().ByNumber(genid.WrapperValue_Value_field_number)
val, err := d.unmarshalScalar(fd)
if err != nil {
return err
}
m.Set(fd, val)
return nil
}
// The JSON representation for Empty is an empty JSON object.
func (e encoder) marshalEmpty(pref.Message) error {
e.StartObject()
e.EndObject()
return nil
}
func (d decoder) unmarshalEmpty(pref.Message) error {
tok, err := d.Read()
if err != nil {
return err
}
if tok.Kind() != json.ObjectOpen {
return d.unexpectedTokenError(tok)
}
for {
tok, err := d.Read()
if err != nil {
return err
}
switch tok.Kind() {
case json.ObjectClose:
return nil
case json.Name:
if d.opts.DiscardUnknown {
if err := d.skipJSONValue(); err != nil {
return err
}
continue
}
return d.newError(tok.Pos(), "unknown field %v", tok.RawString())
default:
return d.unexpectedTokenError(tok)
}
}
}
// The JSON representation for Struct is a JSON object that contains the encoded
// Struct.fields map and follows the serialization rules for a map.
func (e encoder) marshalStruct(m pref.Message) error {
fd := m.Descriptor().Fields().ByNumber(genid.Struct_Fields_field_number)
return e.marshalMap(m.Get(fd).Map(), fd)
}
func (d decoder) unmarshalStruct(m pref.Message) error {
fd := m.Descriptor().Fields().ByNumber(genid.Struct_Fields_field_number)
return d.unmarshalMap(m.Mutable(fd).Map(), fd)
}
// The JSON representation for ListValue is JSON array that contains the encoded
// ListValue.values repeated field and follows the serialization rules for a
// repeated field.
func (e encoder) marshalListValue(m pref.Message) error {
fd := m.Descriptor().Fields().ByNumber(genid.ListValue_Values_field_number)
return e.marshalList(m.Get(fd).List(), fd)
}
func (d decoder) unmarshalListValue(m pref.Message) error {
fd := m.Descriptor().Fields().ByNumber(genid.ListValue_Values_field_number)
return d.unmarshalList(m.Mutable(fd).List(), fd)
}
// The JSON representation for a Value is dependent on the oneof field that is
// set. Each of the field in the oneof has its own custom serialization rule. A
// Value message needs to be a oneof field set, else it is an error.
func (e encoder) marshalKnownValue(m pref.Message) error {
od := m.Descriptor().Oneofs().ByName(genid.Value_Kind_oneof_name)
fd := m.WhichOneof(od)
if fd == nil {
return errors.New("%s: none of the oneof fields is set", genid.Value_message_fullname)
}
if fd.Number() == genid.Value_NumberValue_field_number {
if v := m.Get(fd).Float(); math.IsNaN(v) || math.IsInf(v, 0) {
return errors.New("%s: invalid %v value", genid.Value_NumberValue_field_fullname, v)
}
}
return e.marshalSingular(m.Get(fd), fd)
}
func (d decoder) unmarshalKnownValue(m pref.Message) error {
tok, err := d.Peek()
if err != nil {
return err
}
var fd pref.FieldDescriptor
var val pref.Value
switch tok.Kind() {
case json.Null:
d.Read()
fd = m.Descriptor().Fields().ByNumber(genid.Value_NullValue_field_number)
val = pref.ValueOfEnum(0)
case json.Bool:
tok, err := d.Read()
if err != nil {
return err
}
fd = m.Descriptor().Fields().ByNumber(genid.Value_BoolValue_field_number)
val = pref.ValueOfBool(tok.Bool())
case json.Number:
tok, err := d.Read()
if err != nil {
return err
}
fd = m.Descriptor().Fields().ByNumber(genid.Value_NumberValue_field_number)
var ok bool
val, ok = unmarshalFloat(tok, 64)
if !ok {
return d.newError(tok.Pos(), "invalid %v: %v", genid.Value_message_fullname, tok.RawString())
}
case json.String:
// A JSON string may have been encoded from the number_value field,
// e.g. "NaN", "Infinity", etc. Parsing a proto double type also allows
// for it to be in JSON string form. Given this custom encoding spec,
// however, there is no way to identify that and hence a JSON string is
// always assigned to the string_value field, which means that certain
// encoding cannot be parsed back to the same field.
tok, err := d.Read()
if err != nil {
return err
}
fd = m.Descriptor().Fields().ByNumber(genid.Value_StringValue_field_number)
val = pref.ValueOfString(tok.ParsedString())
case json.ObjectOpen:
fd = m.Descriptor().Fields().ByNumber(genid.Value_StructValue_field_number)
val = m.NewField(fd)
if err := d.unmarshalStruct(val.Message()); err != nil {
return err
}
case json.ArrayOpen:
fd = m.Descriptor().Fields().ByNumber(genid.Value_ListValue_field_number)
val = m.NewField(fd)
if err := d.unmarshalListValue(val.Message()); err != nil {
return err
}
default:
return d.newError(tok.Pos(), "invalid %v: %v", genid.Value_message_fullname, tok.RawString())
}
m.Set(fd, val)
return nil
}
// The JSON representation for a Duration is a JSON string that ends in the
// suffix "s" (indicating seconds) and is preceded by the number of seconds,
// with nanoseconds expressed as fractional seconds.
//
// 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.
//
// Duration.seconds must be from -315,576,000,000 to +315,576,000,000 inclusive.
// Duration.nanos must be from -999,999,999 to +999,999,999 inclusive.
const (
secondsInNanos = 999999999
maxSecondsInDuration = 315576000000
)
func (e encoder) marshalDuration(m pref.Message) error {
fds := m.Descriptor().Fields()
fdSeconds := fds.ByNumber(genid.Duration_Seconds_field_number)
fdNanos := fds.ByNumber(genid.Duration_Nanos_field_number)
secsVal := m.Get(fdSeconds)
nanosVal := m.Get(fdNanos)
secs := secsVal.Int()
nanos := nanosVal.Int()
if secs < -maxSecondsInDuration || secs > maxSecondsInDuration {
return errors.New("%s: seconds out of range %v", genid.Duration_message_fullname, secs)
}
if nanos < -secondsInNanos || nanos > secondsInNanos {
return errors.New("%s: nanos out of range %v", genid.Duration_message_fullname, nanos)
}
if (secs > 0 && nanos < 0) || (secs < 0 && nanos > 0) {
return errors.New("%s: signs of seconds and nanos do not match", genid.Duration_message_fullname)
}
// Generated output always contains 0, 3, 6, or 9 fractional digits,
// depending on required precision, followed by the suffix "s".
var sign string
if secs < 0 || nanos < 0 {
sign, secs, nanos = "-", -1*secs, -1*nanos
}
x := fmt.Sprintf("%s%d.%09d", sign, secs, nanos)
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, ".000")
e.WriteString(x + "s")
return nil
}
func (d decoder) unmarshalDuration(m pref.Message) error {
tok, err := d.Read()
if err != nil {
return err
}
if tok.Kind() != json.String {
return d.unexpectedTokenError(tok)
}
secs, nanos, ok := parseDuration(tok.ParsedString())
if !ok {
return d.newError(tok.Pos(), "invalid %v value %v", genid.Duration_message_fullname, tok.RawString())
}
// Validate seconds. No need to validate nanos because parseDuration would
// have covered that already.
if secs < -maxSecondsInDuration || secs > maxSecondsInDuration {
return d.newError(tok.Pos(), "%v value out of range: %v", genid.Duration_message_fullname, tok.RawString())
}
fds := m.Descriptor().Fields()
fdSeconds := fds.ByNumber(genid.Duration_Seconds_field_number)
fdNanos := fds.ByNumber(genid.Duration_Nanos_field_number)
m.Set(fdSeconds, pref.ValueOfInt64(secs))
m.Set(fdNanos, pref.ValueOfInt32(nanos))
return nil
}
// parseDuration parses the given input string for seconds and nanoseconds value
// for the Duration JSON format. The format is a decimal number with a suffix
// 's'. It can have optional plus/minus sign. There needs to be at least an
// integer or fractional part. Fractional part is limited to 9 digits only for
// nanoseconds precision, regardless of whether there are trailing zero digits.
// Example values are 1s, 0.1s, 1.s, .1s, +1s, -1s, -.1s.
func parseDuration(input string) (int64, int32, bool) {
b := []byte(input)
size := len(b)
if size < 2 {
return 0, 0, false
}
if b[size-1] != 's' {
return 0, 0, false
}
b = b[:size-1]
// Read optional plus/minus symbol.
var neg bool
switch b[0] {
case '-':
neg = true
b = b[1:]
case '+':
b = b[1:]
}
if len(b) == 0 {
return 0, 0, false
}
// Read the integer part.
var intp []byte
switch {
case b[0] == '0':
b = b[1:]
case '1' <= b[0] && b[0] <= '9':
intp = b[0:]
b = b[1:]
n := 1
for len(b) > 0 && '0' <= b[0] && b[0] <= '9' {
n++
b = b[1:]
}
intp = intp[:n]
case b[0] == '.':
// Continue below.
default:
return 0, 0, false
}
hasFrac := false
var frac [9]byte
if len(b) > 0 {
if b[0] != '.' {
return 0, 0, false
}
// Read the fractional part.
b = b[1:]
n := 0
for len(b) > 0 && n < 9 && '0' <= b[0] && b[0] <= '9' {
frac[n] = b[0]
n++
b = b[1:]
}
// It is not valid if there are more bytes left.
if len(b) > 0 {
return 0, 0, false
}
// Pad fractional part with 0s.
for i := n; i < 9; i++ {
frac[i] = '0'
}
hasFrac = true
}
var secs int64
if len(intp) > 0 {
var err error
secs, err = strconv.ParseInt(string(intp), 10, 64)
if err != nil {
return 0, 0, false
}
}
var nanos int64
if hasFrac {
nanob := bytes.TrimLeft(frac[:], "0")
if len(nanob) > 0 {
var err error
nanos, err = strconv.ParseInt(string(nanob), 10, 32)
if err != nil {
return 0, 0, false
}
}
}
if neg {
if secs > 0 {
secs = -secs
}
if nanos > 0 {
nanos = -nanos
}
}
return secs, int32(nanos), true
}
// The JSON representation for a Timestamp is a JSON string in the RFC 3339
// format, i.e. "{year}-{month}-{day}T{hour}:{min}:{sec}[.{frac_sec}]Z" where
// {year} is always expressed using four digits while {month}, {day}, {hour},
// {min}, and {sec} are zero-padded to two digits each. The fractional seconds,
// which can go up to 9 digits, up to 1 nanosecond resolution, is optional. The
// "Z" suffix indicates the timezone ("UTC"); the timezone is required. Encoding
// should always use UTC (as indicated by "Z") and a decoder should be able to
// accept both UTC and other timezones (as indicated by an offset).
//
// Timestamp.seconds must be from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z
// inclusive.
// Timestamp.nanos must be from 0 to 999,999,999 inclusive.
const (
maxTimestampSeconds = 253402300799
minTimestampSeconds = -62135596800
)
func (e encoder) marshalTimestamp(m pref.Message) error {
fds := m.Descriptor().Fields()
fdSeconds := fds.ByNumber(genid.Timestamp_Seconds_field_number)
fdNanos := fds.ByNumber(genid.Timestamp_Nanos_field_number)
secsVal := m.Get(fdSeconds)
nanosVal := m.Get(fdNanos)
secs := secsVal.Int()
nanos := nanosVal.Int()
if secs < minTimestampSeconds || secs > maxTimestampSeconds {
return errors.New("%s: seconds out of range %v", genid.Timestamp_message_fullname, secs)
}
if nanos < 0 || nanos > secondsInNanos {
return errors.New("%s: nanos out of range %v", genid.Timestamp_message_fullname, nanos)
}
// Uses RFC 3339, where generated output will be Z-normalized and uses 0, 3,
// 6 or 9 fractional digits.
t := time.Unix(secs, nanos).UTC()
x := t.Format("2006-01-02T15:04:05.000000000")
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, ".000")
e.WriteString(x + "Z")
return nil
}
func (d decoder) unmarshalTimestamp(m pref.Message) error {
tok, err := d.Read()
if err != nil {
return err
}
if tok.Kind() != json.String {
return d.unexpectedTokenError(tok)
}
t, err := time.Parse(time.RFC3339Nano, tok.ParsedString())
if err != nil {
return d.newError(tok.Pos(), "invalid %v value %v", genid.Timestamp_message_fullname, tok.RawString())
}
// Validate seconds. No need to validate nanos because time.Parse would have
// covered that already.
secs := t.Unix()
if secs < minTimestampSeconds || secs > maxTimestampSeconds {
return d.newError(tok.Pos(), "%v value out of range: %v", genid.Timestamp_message_fullname, tok.RawString())
}
fds := m.Descriptor().Fields()
fdSeconds := fds.ByNumber(genid.Timestamp_Seconds_field_number)
fdNanos := fds.ByNumber(genid.Timestamp_Nanos_field_number)
m.Set(fdSeconds, pref.ValueOfInt64(secs))
m.Set(fdNanos, pref.ValueOfInt32(int32(t.Nanosecond())))
return nil
}
// The JSON representation for a FieldMask is a JSON string where paths are
// separated by a comma. Fields name in each path are converted to/from
// lower-camel naming conventions. Encoding should fail if the path name would
// end up differently after a round-trip.
func (e encoder) marshalFieldMask(m pref.Message) error {
fd := m.Descriptor().Fields().ByNumber(genid.FieldMask_Paths_field_number)
list := m.Get(fd).List()
paths := make([]string, 0, list.Len())
for i := 0; i < list.Len(); i++ {
s := list.Get(i).String()
if !pref.FullName(s).IsValid() {
return errors.New("%s contains invalid path: %q", genid.FieldMask_Paths_field_fullname, s)
}
// Return error if conversion to camelCase is not reversible.
cc := strs.JSONCamelCase(s)
if s != strs.JSONSnakeCase(cc) {
return errors.New("%s contains irreversible value %q", genid.FieldMask_Paths_field_fullname, s)
}
paths = append(paths, cc)
}
e.WriteString(strings.Join(paths, ","))
return nil
}
func (d decoder) unmarshalFieldMask(m pref.Message) error {
tok, err := d.Read()
if err != nil {
return err
}
if tok.Kind() != json.String {
return d.unexpectedTokenError(tok)
}
str := strings.TrimSpace(tok.ParsedString())
if str == "" {
return nil
}
paths := strings.Split(str, ",")
fd := m.Descriptor().Fields().ByNumber(genid.FieldMask_Paths_field_number)
list := m.Mutable(fd).List()
for _, s0 := range paths {
s := strs.JSONSnakeCase(s0)
if strings.Contains(s0, "_") || !pref.FullName(s).IsValid() {
return d.newError(tok.Pos(), "%v contains invalid path: %q", genid.FieldMask_Paths_field_fullname, s0)
}
list.Append(pref.ValueOfString(s))
}
return nil
}

11
vendor/google.golang.org/protobuf/encoding/protowire/wire.go generated vendored
View File

@ -25,6 +25,7 @@ const (
FirstReservedNumber Number = 19000
LastReservedNumber Number = 19999
MaxValidNumber Number = 1<<29 - 1
DefaultRecursionLimit = 10000
)
// IsValid reports whether the field number is semantically valid.
@ -55,6 +56,7 @@ const (
errCodeOverflow
errCodeReserved
errCodeEndGroup
errCodeRecursionDepth
)
var (
@ -112,6 +114,10 @@ func ConsumeField(b []byte) (Number, Type, int) {
// When parsing a group, the length includes the end group marker and
// the end group is verified to match the starting field number.
func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) {
return consumeFieldValueD(num, typ, b, DefaultRecursionLimit)
}
func consumeFieldValueD(num Number, typ Type, b []byte, depth int) (n int) {
switch typ {
case VarintType:
_, n = ConsumeVarint(b)
@ -126,6 +132,9 @@ func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) {
_, n = ConsumeBytes(b)
return n
case StartGroupType:
if depth < 0 {
return errCodeRecursionDepth
}
n0 := len(b)
for {
num2, typ2, n := ConsumeTag(b)
@ -140,7 +149,7 @@ func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) {
return n0 - len(b)
}
n = ConsumeFieldValue(num2, typ2, b)
n = consumeFieldValueD(num2, typ2, b, depth-1)
if n < 0 {
return n // forward error code
}

340
vendor/google.golang.org/protobuf/internal/encoding/json/decode.go generated vendored Normal file
View File

@ -0,0 +1,340 @@
// Copyright 2018 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 json
import (
"bytes"
"fmt"
"io"
"regexp"
"unicode/utf8"
"google.golang.org/protobuf/internal/errors"
)
// call specifies which Decoder method was invoked.
type call uint8
const (
readCall call = iota
peekCall
)
const unexpectedFmt = "unexpected token %s"
// ErrUnexpectedEOF means that EOF was encountered in the middle of the input.
var ErrUnexpectedEOF = errors.New("%v", io.ErrUnexpectedEOF)
// Decoder is a token-based JSON decoder.
type Decoder struct {
// lastCall is last method called, either readCall or peekCall.
// Initial value is readCall.
lastCall call
// lastToken contains the last read token.
lastToken Token
// lastErr contains the last read error.
lastErr error
// openStack is a stack containing ObjectOpen and ArrayOpen values. The
// top of stack represents the object or the array the current value is
// directly located in.
openStack []Kind
// orig is used in reporting line and column.
orig []byte
// in contains the unconsumed input.
in []byte
}
// NewDecoder returns a Decoder to read the given []byte.
func NewDecoder(b []byte) *Decoder {
return &Decoder{orig: b, in: b}
}
// Peek looks ahead and returns the next token kind without advancing a read.
func (d *Decoder) Peek() (Token, error) {
defer func() { d.lastCall = peekCall }()
if d.lastCall == readCall {
d.lastToken, d.lastErr = d.Read()
}
return d.lastToken, d.lastErr
}
// Read returns the next JSON token.
// It will return an error if there is no valid token.
func (d *Decoder) Read() (Token, error) {
const scalar = Null | Bool | Number | String
defer func() { d.lastCall = readCall }()
if d.lastCall == peekCall {
return d.lastToken, d.lastErr
}
tok, err := d.parseNext()
if err != nil {
return Token{}, err
}
switch tok.kind {
case EOF:
if len(d.openStack) != 0 ||
d.lastToken.kind&scalar|ObjectClose|ArrayClose == 0 {
return Token{}, ErrUnexpectedEOF
}
case Null:
if !d.isValueNext() {
return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
}
case Bool, Number:
if !d.isValueNext() {
return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
}
case String:
if d.isValueNext() {
break
}
// This string token should only be for a field name.
if d.lastToken.kind&(ObjectOpen|comma) == 0 {
return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
}
if len(d.in) == 0 {
return Token{}, ErrUnexpectedEOF
}
if c := d.in[0]; c != ':' {
return Token{}, d.newSyntaxError(d.currPos(), `unexpected character %s, missing ":" after field name`, string(c))
}
tok.kind = Name
d.consume(1)
case ObjectOpen, ArrayOpen:
if !d.isValueNext() {
return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
}
d.openStack = append(d.openStack, tok.kind)
case ObjectClose:
if len(d.openStack) == 0 ||
d.lastToken.kind == comma ||
d.openStack[len(d.openStack)-1] != ObjectOpen {
return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
}
d.openStack = d.openStack[:len(d.openStack)-1]
case ArrayClose:
if len(d.openStack) == 0 ||
d.lastToken.kind == comma ||
d.openStack[len(d.openStack)-1] != ArrayOpen {
return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
}
d.openStack = d.openStack[:len(d.openStack)-1]
case comma:
if len(d.openStack) == 0 ||
d.lastToken.kind&(scalar|ObjectClose|ArrayClose) == 0 {
return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
}
}
// Update d.lastToken only after validating token to be in the right sequence.
d.lastToken = tok
if d.lastToken.kind == comma {
return d.Read()
}
return tok, nil
}
// Any sequence that looks like a non-delimiter (for error reporting).
var errRegexp = regexp.MustCompile(`^([-+._a-zA-Z0-9]{1,32}|.)`)
// parseNext parses for the next JSON token. It returns a Token object for
// different types, except for Name. It does not handle whether the next token
// is in a valid sequence or not.
func (d *Decoder) parseNext() (Token, error) {
// Trim leading spaces.
d.consume(0)
in := d.in
if len(in) == 0 {
return d.consumeToken(EOF, 0), nil
}
switch in[0] {
case 'n':
if n := matchWithDelim("null", in); n != 0 {
return d.consumeToken(Null, n), nil
}
case 't':
if n := matchWithDelim("true", in); n != 0 {
return d.consumeBoolToken(true, n), nil
}
case 'f':
if n := matchWithDelim("false", in); n != 0 {
return d.consumeBoolToken(false, n), nil
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
if n, ok := parseNumber(in); ok {
return d.consumeToken(Number, n), nil
}
case '"':
s, n, err := d.parseString(in)
if err != nil {
return Token{}, err
}
return d.consumeStringToken(s, n), nil
case '{':
return d.consumeToken(ObjectOpen, 1), nil
case '}':
return d.consumeToken(ObjectClose, 1), nil
case '[':
return d.consumeToken(ArrayOpen, 1), nil
case ']':
return d.consumeToken(ArrayClose, 1), nil
case ',':
return d.consumeToken(comma, 1), nil
}
return Token{}, d.newSyntaxError(d.currPos(), "invalid value %s", errRegexp.Find(in))
}
// newSyntaxError returns an error with line and column information useful for
// syntax errors.
func (d *Decoder) newSyntaxError(pos int, f string, x ...interface{}) error {
e := errors.New(f, x...)
line, column := d.Position(pos)
return errors.New("syntax error (line %d:%d): %v", line, column, e)
}
// Position returns line and column number of given index of the original input.
// It will panic if index is out of range.
func (d *Decoder) Position(idx int) (line int, column int) {
b := d.orig[:idx]
line = bytes.Count(b, []byte("\n")) + 1
if i := bytes.LastIndexByte(b, '\n'); i >= 0 {
b = b[i+1:]
}
column = utf8.RuneCount(b) + 1 // ignore multi-rune characters
return line, column
}
// currPos returns the current index position of d.in from d.orig.
func (d *Decoder) currPos() int {
return len(d.orig) - len(d.in)
}
// matchWithDelim matches s with the input b and verifies that the match
// terminates with a delimiter of some form (e.g., r"[^-+_.a-zA-Z0-9]").
// As a special case, EOF is considered a delimiter. It returns the length of s
// if there is a match, else 0.
func matchWithDelim(s string, b []byte) int {
if !bytes.HasPrefix(b, []byte(s)) {
return 0
}
n := len(s)
if n < len(b) && isNotDelim(b[n]) {
return 0
}
return n
}
// isNotDelim returns true if given byte is a not delimiter character.
func isNotDelim(c byte) bool {
return (c == '-' || c == '+' || c == '.' || c == '_' ||
('a' <= c && c <= 'z') ||
('A' <= c && c <= 'Z') ||
('0' <= c && c <= '9'))
}
// consume consumes n bytes of input and any subsequent whitespace.
func (d *Decoder) consume(n int) {
d.in = d.in[n:]
for len(d.in) > 0 {
switch d.in[0] {
case ' ', '\n', '\r', '\t':
d.in = d.in[1:]
default:
return
}
}
}
// isValueNext returns true if next type should be a JSON value: Null,
// Number, String or Bool.
func (d *Decoder) isValueNext() bool {
if len(d.openStack) == 0 {
return d.lastToken.kind == 0
}
start := d.openStack[len(d.openStack)-1]
switch start {
case ObjectOpen:
return d.lastToken.kind&Name != 0
case ArrayOpen:
return d.lastToken.kind&(ArrayOpen|comma) != 0
}
panic(fmt.Sprintf(
"unreachable logic in Decoder.isValueNext, lastToken.kind: %v, openStack: %v",
d.lastToken.kind, start))
}
// consumeToken constructs a Token for given Kind with raw value derived from
// current d.in and given size, and consumes the given size-lenght of it.
func (d *Decoder) consumeToken(kind Kind, size int) Token {
tok := Token{
kind: kind,
raw: d.in[:size],
pos: len(d.orig) - len(d.in),
}
d.consume(size)
return tok
}
// consumeBoolToken constructs a Token for a Bool kind with raw value derived from
// current d.in and given size.
func (d *Decoder) consumeBoolToken(b bool, size int) Token {
tok := Token{
kind: Bool,
raw: d.in[:size],
pos: len(d.orig) - len(d.in),
boo: b,
}
d.consume(size)
return tok
}
// consumeStringToken constructs a Token for a String kind with raw value derived
// from current d.in and given size.
func (d *Decoder) consumeStringToken(s string, size int) Token {
tok := Token{
kind: String,
raw: d.in[:size],
pos: len(d.orig) - len(d.in),
str: s,
}
d.consume(size)
return tok
}
// Clone returns a copy of the Decoder for use in reading ahead the next JSON
// object, array or other values without affecting current Decoder.
func (d *Decoder) Clone() *Decoder {
ret := *d
ret.openStack = append([]Kind(nil), ret.openStack...)
return &ret
}

254
vendor/google.golang.org/protobuf/internal/encoding/json/decode_number.go generated vendored Normal file
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// Copyright 2018 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 json
import (
"bytes"
"strconv"
)
// parseNumber reads the given []byte for a valid JSON number. If it is valid,
// it returns the number of bytes. Parsing logic follows the definition in
// https://tools.ietf.org/html/rfc7159#section-6, and is based off
// encoding/json.isValidNumber function.
func parseNumber(input []byte) (int, bool) {
var n int
s := input
if len(s) == 0 {
return 0, false
}
// Optional -
if s[0] == '-' {
s = s[1:]
n++
if len(s) == 0 {
return 0, false
}
}
// Digits
switch {
case s[0] == '0':
s = s[1:]
n++
case '1' <= s[0] && s[0] <= '9':
s = s[1:]
n++
for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
s = s[1:]
n++
}
default:
return 0, false
}
// . followed by 1 or more digits.
if len(s) >= 2 && s[0] == '.' && '0' <= s[1] && s[1] <= '9' {
s = s[2:]
n += 2
for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
s = s[1:]
n++
}
}
// e or E followed by an optional - or + and
// 1 or more digits.
if len(s) >= 2 && (s[0] == 'e' || s[0] == 'E') {
s = s[1:]
n++
if s[0] == '+' || s[0] == '-' {
s = s[1:]
n++
if len(s) == 0 {
return 0, false
}
}
for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
s = s[1:]
n++
}
}
// Check that next byte is a delimiter or it is at the end.
if n < len(input) && isNotDelim(input[n]) {
return 0, false
}
return n, true
}
// numberParts is the result of parsing out a valid JSON number. It contains
// the parts of a number. The parts are used for integer conversion.
type numberParts struct {
neg bool
intp []byte
frac []byte
exp []byte
}
// parseNumber constructs numberParts from given []byte. The logic here is
// similar to consumeNumber above with the difference of having to construct
// numberParts. The slice fields in numberParts are subslices of the input.
func parseNumberParts(input []byte) (numberParts, bool) {
var neg bool
var intp []byte
var frac []byte
var exp []byte
s := input
if len(s) == 0 {
return numberParts{}, false
}
// Optional -
if s[0] == '-' {
neg = true
s = s[1:]
if len(s) == 0 {
return numberParts{}, false
}
}
// Digits
switch {
case s[0] == '0':
// Skip first 0 and no need to store.
s = s[1:]
case '1' <= s[0] && s[0] <= '9':
intp = s
n := 1
s = s[1:]
for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
s = s[1:]
n++
}
intp = intp[:n]
default:
return numberParts{}, false
}
// . followed by 1 or more digits.
if len(s) >= 2 && s[0] == '.' && '0' <= s[1] && s[1] <= '9' {
frac = s[1:]
n := 1
s = s[2:]
for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
s = s[1:]
n++
}
frac = frac[:n]
}
// e or E followed by an optional - or + and
// 1 or more digits.
if len(s) >= 2 && (s[0] == 'e' || s[0] == 'E') {
s = s[1:]
exp = s
n := 0
if s[0] == '+' || s[0] == '-' {
s = s[1:]
n++
if len(s) == 0 {
return numberParts{}, false
}
}
for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
s = s[1:]
n++
}
exp = exp[:n]
}
return numberParts{
neg: neg,
intp: intp,
frac: bytes.TrimRight(frac, "0"), // Remove unnecessary 0s to the right.
exp: exp,
}, true
}
// normalizeToIntString returns an integer string in normal form without the
// E-notation for given numberParts. It will return false if it is not an
// integer or if the exponent exceeds than max/min int value.
func normalizeToIntString(n numberParts) (string, bool) {
intpSize := len(n.intp)
fracSize := len(n.frac)
if intpSize == 0 && fracSize == 0 {
return "0", true
}
var exp int
if len(n.exp) > 0 {
i, err := strconv.ParseInt(string(n.exp), 10, 32)
if err != nil {
return "", false
}
exp = int(i)
}
var num []byte
if exp >= 0 {
// For positive E, shift fraction digits into integer part and also pad
// with zeroes as needed.
// If there are more digits in fraction than the E value, then the
// number is not an integer.
if fracSize > exp {
return "", false
}
// Make sure resulting digits are within max value limit to avoid
// unnecessarily constructing a large byte slice that may simply fail
// later on.
const maxDigits = 20 // Max uint64 value has 20 decimal digits.
if intpSize+exp > maxDigits {
return "", false
}
// Set cap to make a copy of integer part when appended.
num = n.intp[:len(n.intp):len(n.intp)]
num = append(num, n.frac...)
for i := 0; i < exp-fracSize; i++ {
num = append(num, '0')
}
} else {
// For negative E, shift digits in integer part out.
// If there are fractions, then the number is not an integer.
if fracSize > 0 {
return "", false
}
// index is where the decimal point will be after adjusting for negative
// exponent.
index := intpSize + exp
if index < 0 {
return "", false
}
num = n.intp
// If any of the digits being shifted to the right of the decimal point
// is non-zero, then the number is not an integer.
for i := index; i < intpSize; i++ {
if num[i] != '0' {
return "", false
}
}
num = num[:index]
}
if n.neg {
return "-" + string(num), true
}
return string(num), true
}

91
vendor/google.golang.org/protobuf/internal/encoding/json/decode_string.go generated vendored Normal file
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@ -0,0 +1,91 @@
// Copyright 2018 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 json
import (
"strconv"
"unicode"
"unicode/utf16"
"unicode/utf8"
"google.golang.org/protobuf/internal/strs"
)
func (d *Decoder) parseString(in []byte) (string, int, error) {
in0 := in
if len(in) == 0 {
return "", 0, ErrUnexpectedEOF
}
if in[0] != '"' {
return "", 0, d.newSyntaxError(d.currPos(), "invalid character %q at start of string", in[0])
}
in = in[1:]
i := indexNeedEscapeInBytes(in)
in, out := in[i:], in[:i:i] // set cap to prevent mutations
for len(in) > 0 {
switch r, n := utf8.DecodeRune(in); {
case r == utf8.RuneError && n == 1:
return "", 0, d.newSyntaxError(d.currPos(), "invalid UTF-8 in string")
case r < ' ':
return "", 0, d.newSyntaxError(d.currPos(), "invalid character %q in string", r)
case r == '"':
in = in[1:]
n := len(in0) - len(in)
return string(out), n, nil
case r == '\\':
if len(in) < 2 {
return "", 0, ErrUnexpectedEOF
}
switch r := in[1]; r {
case '"', '\\', '/':
in, out = in[2:], append(out, r)
case 'b':
in, out = in[2:], append(out, '\b')
case 'f':
in, out = in[2:], append(out, '\f')
case 'n':
in, out = in[2:], append(out, '\n')
case 'r':
in, out = in[2:], append(out, '\r')
case 't':
in, out = in[2:], append(out, '\t')
case 'u':
if len(in) < 6 {
return "", 0, ErrUnexpectedEOF
}
v, err := strconv.ParseUint(string(in[2:6]), 16, 16)
if err != nil {
return "", 0, d.newSyntaxError(d.currPos(), "invalid escape code %q in string", in[:6])
}
in = in[6:]
r := rune(v)
if utf16.IsSurrogate(r) {
if len(in) < 6 {
return "", 0, ErrUnexpectedEOF
}
v, err := strconv.ParseUint(string(in[2:6]), 16, 16)
r = utf16.DecodeRune(r, rune(v))
if in[0] != '\\' || in[1] != 'u' ||
r == unicode.ReplacementChar || err != nil {
return "", 0, d.newSyntaxError(d.currPos(), "invalid escape code %q in string", in[:6])
}
in = in[6:]
}
out = append(out, string(r)...)
default:
return "", 0, d.newSyntaxError(d.currPos(), "invalid escape code %q in string", in[:2])
}
default:
i := indexNeedEscapeInBytes(in[n:])
in, out = in[n+i:], append(out, in[:n+i]...)
}
}
return "", 0, ErrUnexpectedEOF
}
// indexNeedEscapeInBytes returns the index of the character that needs
// escaping. If no characters need escaping, this returns the input length.
func indexNeedEscapeInBytes(b []byte) int { return indexNeedEscapeInString(strs.UnsafeString(b)) }

192
vendor/google.golang.org/protobuf/internal/encoding/json/decode_token.go generated vendored Normal file
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@ -0,0 +1,192 @@
// Copyright 2019 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 json
import (
"bytes"
"fmt"
"strconv"
)
// Kind represents a token kind expressible in the JSON format.
type Kind uint16
const (
Invalid Kind = (1 << iota) / 2
EOF
Null
Bool
Number
String
Name
ObjectOpen
ObjectClose
ArrayOpen
ArrayClose
// comma is only for parsing in between tokens and
// does not need to be exported.
comma
)
func (k Kind) String() string {
switch k {
case EOF:
return "eof"
case Null:
return "null"
case Bool:
return "bool"
case Number:
return "number"
case String:
return "string"
case ObjectOpen:
return "{"
case ObjectClose:
return "}"
case Name:
return "name"
case ArrayOpen:
return "["
case ArrayClose:
return "]"
case comma:
return ","
}
return "<invalid>"
}
// Token provides a parsed token kind and value.
//
// Values are provided by the difference accessor methods. The accessor methods
// Name, Bool, and ParsedString will panic if called on the wrong kind. There
// are different accessor methods for the Number kind for converting to the
// appropriate Go numeric type and those methods have the ok return value.
type Token struct {
// Token kind.
kind Kind
// pos provides the position of the token in the original input.
pos int
// raw bytes of the serialized token.
// This is a subslice into the original input.
raw []byte
// boo is parsed boolean value.
boo bool
// str is parsed string value.
str string
}
// Kind returns the token kind.
func (t Token) Kind() Kind {
return t.kind
}
// RawString returns the read value in string.
func (t Token) RawString() string {
return string(t.raw)
}
// Pos returns the token position from the input.
func (t Token) Pos() int {
return t.pos
}
// Name returns the object name if token is Name, else it panics.
func (t Token) Name() string {
if t.kind == Name {
return t.str
}
panic(fmt.Sprintf("Token is not a Name: %v", t.RawString()))
}
// Bool returns the bool value if token kind is Bool, else it panics.
func (t Token) Bool() bool {
if t.kind == Bool {
return t.boo
}
panic(fmt.Sprintf("Token is not a Bool: %v", t.RawString()))
}
// ParsedString returns the string value for a JSON string token or the read
// value in string if token is not a string.
func (t Token) ParsedString() string {
if t.kind == String {
return t.str
}
panic(fmt.Sprintf("Token is not a String: %v", t.RawString()))
}
// Float returns the floating-point number if token kind is Number.
//
// The floating-point precision is specified by the bitSize parameter: 32 for
// float32 or 64 for float64. If bitSize=32, the result still has type float64,
// but it will be convertible to float32 without changing its value. It will
// return false if the number exceeds the floating point limits for given
// bitSize.
func (t Token) Float(bitSize int) (float64, bool) {
if t.kind != Number {
return 0, false
}
f, err := strconv.ParseFloat(t.RawString(), bitSize)
if err != nil {
return 0, false
}
return f, true
}
// Int returns the signed integer number if token is Number.
//
// The given bitSize specifies the integer type that the result must fit into.
// It returns false if the number is not an integer value or if the result
// exceeds the limits for given bitSize.
func (t Token) Int(bitSize int) (int64, bool) {
s, ok := t.getIntStr()
if !ok {
return 0, false
}
n, err := strconv.ParseInt(s, 10, bitSize)
if err != nil {
return 0, false
}
return n, true
}
// Uint returns the signed integer number if token is Number.
//
// The given bitSize specifies the unsigned integer type that the result must
// fit into. It returns false if the number is not an unsigned integer value
// or if the result exceeds the limits for given bitSize.
func (t Token) Uint(bitSize int) (uint64, bool) {
s, ok := t.getIntStr()
if !ok {
return 0, false
}
n, err := strconv.ParseUint(s, 10, bitSize)
if err != nil {
return 0, false
}
return n, true
}
func (t Token) getIntStr() (string, bool) {
if t.kind != Number {
return "", false
}
parts, ok := parseNumberParts(t.raw)
if !ok {
return "", false
}
return normalizeToIntString(parts)
}
// TokenEquals returns true if given Tokens are equal, else false.
func TokenEquals(x, y Token) bool {
return x.kind == y.kind &&
x.pos == y.pos &&
bytes.Equal(x.raw, y.raw) &&
x.boo == y.boo &&
x.str == y.str
}

276
vendor/google.golang.org/protobuf/internal/encoding/json/encode.go generated vendored Normal file
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@ -0,0 +1,276 @@
// Copyright 2018 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 json
import (
"math"
"math/bits"
"strconv"
"strings"
"unicode/utf8"
"google.golang.org/protobuf/internal/detrand"
"google.golang.org/protobuf/internal/errors"
)
// kind represents an encoding type.
type kind uint8
const (
_ kind = (1 << iota) / 2
name
scalar
objectOpen
objectClose
arrayOpen
arrayClose
)
// Encoder provides methods to write out JSON constructs and values. The user is
// responsible for producing valid sequences of JSON constructs and values.
type Encoder struct {
indent string
lastKind kind
indents []byte
out []byte
}
// NewEncoder returns an Encoder.
//
// If indent is a non-empty string, it causes every entry for an Array or Object
// to be preceded by the indent and trailed by a newline.
func NewEncoder(indent string) (*Encoder, error) {
e := &Encoder{}
if len(indent) > 0 {
if strings.Trim(indent, " \t") != "" {
return nil, errors.New("indent may only be composed of space or tab characters")
}
e.indent = indent
}
return e, nil
}
// Bytes returns the content of the written bytes.
func (e *Encoder) Bytes() []byte {
return e.out
}
// WriteNull writes out the null value.
func (e *Encoder) WriteNull() {
e.prepareNext(scalar)
e.out = append(e.out, "null"...)
}
// WriteBool writes out the given boolean value.
func (e *Encoder) WriteBool(b bool) {
e.prepareNext(scalar)
if b {
e.out = append(e.out, "true"...)
} else {
e.out = append(e.out, "false"...)
}
}
// WriteString writes out the given string in JSON string value. Returns error
// if input string contains invalid UTF-8.
func (e *Encoder) WriteString(s string) error {
e.prepareNext(scalar)
var err error
if e.out, err = appendString(e.out, s); err != nil {
return err
}
return nil
}
// Sentinel error used for indicating invalid UTF-8.
var errInvalidUTF8 = errors.New("invalid UTF-8")
func appendString(out []byte, in string) ([]byte, error) {
out = append(out, '"')
i := indexNeedEscapeInString(in)
in, out = in[i:], append(out, in[:i]...)
for len(in) > 0 {
switch r, n := utf8.DecodeRuneInString(in); {
case r == utf8.RuneError && n == 1:
return out, errInvalidUTF8
case r < ' ' || r == '"' || r == '\\':
out = append(out, '\\')
switch r {
case '"', '\\':
out = append(out, byte(r))
case '\b':
out = append(out, 'b')
case '\f':
out = append(out, 'f')
case '\n':
out = append(out, 'n')
case '\r':
out = append(out, 'r')
case '\t':
out = append(out, 't')
default:
out = append(out, 'u')
out = append(out, "0000"[1+(bits.Len32(uint32(r))-1)/4:]...)
out = strconv.AppendUint(out, uint64(r), 16)
}
in = in[n:]
default:
i := indexNeedEscapeInString(in[n:])
in, out = in[n+i:], append(out, in[:n+i]...)
}
}
out = append(out, '"')
return out, nil
}
// indexNeedEscapeInString returns the index of the character that needs
// escaping. If no characters need escaping, this returns the input length.
func indexNeedEscapeInString(s string) int {
for i, r := range s {
if r < ' ' || r == '\\' || r == '"' || r == utf8.RuneError {
return i
}
}
return len(s)
}
// WriteFloat writes out the given float and bitSize in JSON number value.
func (e *Encoder) WriteFloat(n float64, bitSize int) {
e.prepareNext(scalar)
e.out = appendFloat(e.out, n, bitSize)
}
// appendFloat formats given float in bitSize, and appends to the given []byte.
func appendFloat(out []byte, n float64, bitSize int) []byte {
switch {
case math.IsNaN(n):
return append(out, `"NaN"`...)
case math.IsInf(n, +1):
return append(out, `"Infinity"`...)
case math.IsInf(n, -1):
return append(out, `"-Infinity"`...)
}
// JSON number formatting logic based on encoding/json.
// See floatEncoder.encode for reference.
fmt := byte('f')
if abs := math.Abs(n); abs != 0 {
if bitSize == 64 && (abs < 1e-6 || abs >= 1e21) ||
bitSize == 32 && (float32(abs) < 1e-6 || float32(abs) >= 1e21) {
fmt = 'e'
}
}
out = strconv.AppendFloat(out, n, fmt, -1, bitSize)
if fmt == 'e' {
n := len(out)
if n >= 4 && out[n-4] == 'e' && out[n-3] == '-' && out[n-2] == '0' {
out[n-2] = out[n-1]
out = out[:n-1]
}
}
return out
}
// WriteInt writes out the given signed integer in JSON number value.
func (e *Encoder) WriteInt(n int64) {
e.prepareNext(scalar)
e.out = append(e.out, strconv.FormatInt(n, 10)...)
}
// WriteUint writes out the given unsigned integer in JSON number value.
func (e *Encoder) WriteUint(n uint64) {
e.prepareNext(scalar)
e.out = append(e.out, strconv.FormatUint(n, 10)...)
}
// StartObject writes out the '{' symbol.
func (e *Encoder) StartObject() {
e.prepareNext(objectOpen)
e.out = append(e.out, '{')
}
// EndObject writes out the '}' symbol.
func (e *Encoder) EndObject() {
e.prepareNext(objectClose)
e.out = append(e.out, '}')
}
// WriteName writes out the given string in JSON string value and the name
// separator ':'. Returns error if input string contains invalid UTF-8, which
// should not be likely as protobuf field names should be valid.
func (e *Encoder) WriteName(s string) error {
e.prepareNext(name)
var err error
// Append to output regardless of error.
e.out, err = appendString(e.out, s)
e.out = append(e.out, ':')
return err
}
// StartArray writes out the '[' symbol.
func (e *Encoder) StartArray() {
e.prepareNext(arrayOpen)
e.out = append(e.out, '[')
}
// EndArray writes out the ']' symbol.
func (e *Encoder) EndArray() {
e.prepareNext(arrayClose)
e.out = append(e.out, ']')
}
// prepareNext adds possible comma and indentation for the next value based
// on last type and indent option. It also updates lastKind to next.
func (e *Encoder) prepareNext(next kind) {
defer func() {
// Set lastKind to next.
e.lastKind = next
}()
if len(e.indent) == 0 {
// Need to add comma on the following condition.
if e.lastKind&(scalar|objectClose|arrayClose) != 0 &&
next&(name|scalar|objectOpen|arrayOpen) != 0 {
e.out = append(e.out, ',')
// For single-line output, add a random extra space after each
// comma to make output unstable.
if detrand.Bool() {
e.out = append(e.out, ' ')
}
}
return
}
switch {
case e.lastKind&(objectOpen|arrayOpen) != 0:
// If next type is NOT closing, add indent and newline.
if next&(objectClose|arrayClose) == 0 {
e.indents = append(e.indents, e.indent...)
e.out = append(e.out, '\n')
e.out = append(e.out, e.indents...)
}
case e.lastKind&(scalar|objectClose|arrayClose) != 0:
switch {
// If next type is either a value or name, add comma and newline.
case next&(name|scalar|objectOpen|arrayOpen) != 0:
e.out = append(e.out, ',', '\n')
// If next type is a closing object or array, adjust indentation.
case next&(objectClose|arrayClose) != 0:
e.indents = e.indents[:len(e.indents)-len(e.indent)]
e.out = append(e.out, '\n')
}
e.out = append(e.out, e.indents...)
case e.lastKind&name != 0:
e.out = append(e.out, ' ')
// For multi-line output, add a random extra space after key: to make
// output unstable.
if detrand.Bool() {
e.out = append(e.out, ' ')
}
}
}

2
vendor/google.golang.org/protobuf/internal/encoding/text/decode.go generated vendored
View File

@ -381,7 +381,7 @@ func (d *Decoder) currentOpenKind() (Kind, byte) {
case '[':
return ListOpen, ']'
}
panic(fmt.Sprintf("Decoder: openStack contains invalid byte %s", string(openCh)))
panic(fmt.Sprintf("Decoder: openStack contains invalid byte %c", openCh))
}
func (d *Decoder) pushOpenStack(ch byte) {

1
vendor/google.golang.org/protobuf/internal/errors/is_go112.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !go1.13
// +build !go1.13
package errors

1
vendor/google.golang.org/protobuf/internal/errors/is_go113.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build go1.13
// +build go1.13
package errors

1
vendor/google.golang.org/protobuf/internal/flags/proto_legacy_disable.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !protolegacy
// +build !protolegacy
package flags

1
vendor/google.golang.org/protobuf/internal/flags/proto_legacy_enable.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build protolegacy
// +build protolegacy
package flags

1
vendor/google.golang.org/protobuf/internal/impl/codec_map_go111.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !go1.12
// +build !go1.12
package impl

1
vendor/google.golang.org/protobuf/internal/impl/codec_map_go112.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build go1.12
// +build go1.12
package impl

1
vendor/google.golang.org/protobuf/internal/impl/codec_reflect.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build purego || appengine
// +build purego appengine
package impl

1
vendor/google.golang.org/protobuf/internal/impl/codec_unsafe.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !purego && !appengine
// +build !purego,!appengine
package impl

8
vendor/google.golang.org/protobuf/internal/impl/decode.go generated vendored
View File

@ -18,6 +18,7 @@ import (
)
var errDecode = errors.New("cannot parse invalid wire-format data")
var errRecursionDepth = errors.New("exceeded maximum recursion depth")
type unmarshalOptions struct {
flags protoiface.UnmarshalInputFlags
@ -25,6 +26,7 @@ type unmarshalOptions struct {
FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error)
FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error)
}
depth int
}
func (o unmarshalOptions) Options() proto.UnmarshalOptions {
@ -44,6 +46,7 @@ func (o unmarshalOptions) IsDefault() bool {
var lazyUnmarshalOptions = unmarshalOptions{
resolver: preg.GlobalTypes,
depth: protowire.DefaultRecursionLimit,
}
type unmarshalOutput struct {
@ -62,6 +65,7 @@ func (mi *MessageInfo) unmarshal(in piface.UnmarshalInput) (piface.UnmarshalOutp
out, err := mi.unmarshalPointer(in.Buf, p, 0, unmarshalOptions{
flags: in.Flags,
resolver: in.Resolver,
depth: in.Depth,
})
var flags piface.UnmarshalOutputFlags
if out.initialized {
@ -82,6 +86,10 @@ var errUnknown = errors.New("unknown")
func (mi *MessageInfo) unmarshalPointer(b []byte, p pointer, groupTag protowire.Number, opts unmarshalOptions) (out unmarshalOutput, err error) {
mi.init()
opts.depth--
if opts.depth < 0 {
return out, errRecursionDepth
}
if flags.ProtoLegacy && mi.isMessageSet {
return unmarshalMessageSet(mi, b, p, opts)
}

1
vendor/google.golang.org/protobuf/internal/impl/pointer_reflect.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build purego || appengine
// +build purego appengine
package impl

1
vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !purego && !appengine
// +build !purego,!appengine
package impl

1
vendor/google.golang.org/protobuf/internal/strs/strings_pure.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build purego || appengine
// +build purego appengine
package strs

1
vendor/google.golang.org/protobuf/internal/strs/strings_unsafe.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !purego && !appengine
// +build !purego,!appengine
package strs

4
vendor/google.golang.org/protobuf/internal/version/version.go generated vendored
View File

@ -52,8 +52,8 @@ import (
// 10. Send out the CL for review and submit it.
const (
Major = 1
Minor = 27
Patch = 1
Minor = 28
Patch = 0
PreRelease = ""
)

17
vendor/google.golang.org/protobuf/proto/decode.go generated vendored
View File

@ -42,18 +42,25 @@ type UnmarshalOptions struct {
FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error)
FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error)
}
// RecursionLimit limits how deeply messages may be nested.
// If zero, a default limit is applied.
RecursionLimit int
}
// Unmarshal parses the wire-format message in b and places the result in m.
// The provided message must be mutable (e.g., a non-nil pointer to a message).
func Unmarshal(b []byte, m Message) error {
_, err := UnmarshalOptions{}.unmarshal(b, m.ProtoReflect())
_, err := UnmarshalOptions{RecursionLimit: protowire.DefaultRecursionLimit}.unmarshal(b, m.ProtoReflect())
return err
}
// Unmarshal parses the wire-format message in b and places the result in m.
// The provided message must be mutable (e.g., a non-nil pointer to a message).
func (o UnmarshalOptions) Unmarshal(b []byte, m Message) error {
if o.RecursionLimit == 0 {
o.RecursionLimit = protowire.DefaultRecursionLimit
}
_, err := o.unmarshal(b, m.ProtoReflect())
return err
}
@ -63,6 +70,9 @@ func (o UnmarshalOptions) Unmarshal(b []byte, m Message) error {
// This method permits fine-grained control over the unmarshaler.
// Most users should use Unmarshal instead.
func (o UnmarshalOptions) UnmarshalState(in protoiface.UnmarshalInput) (protoiface.UnmarshalOutput, error) {
if o.RecursionLimit == 0 {
o.RecursionLimit = protowire.DefaultRecursionLimit
}
return o.unmarshal(in.Buf, in.Message)
}
@ -86,12 +96,17 @@ func (o UnmarshalOptions) unmarshal(b []byte, m protoreflect.Message) (out proto
Message: m,
Buf: b,
Resolver: o.Resolver,
Depth: o.RecursionLimit,
}
if o.DiscardUnknown {
in.Flags |= protoiface.UnmarshalDiscardUnknown
}
out, err = methods.Unmarshal(in)
} else {
o.RecursionLimit--
if o.RecursionLimit < 0 {
return out, errors.New("exceeded max recursion depth")
}
err = o.unmarshalMessageSlow(b, m)
}
if err != nil {

1
vendor/google.golang.org/protobuf/proto/proto_methods.go generated vendored
View File

@ -3,6 +3,7 @@
// license that can be found in the LICENSE file.
// The protoreflect build tag disables use of fast-path methods.
//go:build !protoreflect
// +build !protoreflect
package proto

1
vendor/google.golang.org/protobuf/proto/proto_reflect.go generated vendored
View File

@ -3,6 +3,7 @@
// license that can be found in the LICENSE file.
// The protoreflect build tag disables use of fast-path methods.
//go:build protoreflect
// +build protoreflect
package proto

1
vendor/google.golang.org/protobuf/reflect/protoreflect/methods.go generated vendored
View File

@ -53,6 +53,7 @@ type (
FindExtensionByName(field FullName) (ExtensionType, error)
FindExtensionByNumber(message FullName, field FieldNumber) (ExtensionType, error)
}
Depth int
}
unmarshalOutput = struct {
pragma.NoUnkeyedLiterals

1
vendor/google.golang.org/protobuf/reflect/protoreflect/value_pure.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build purego || appengine
// +build purego appengine
package protoreflect

25
vendor/google.golang.org/protobuf/reflect/protoreflect/value_union.go generated vendored
View File

@ -41,6 +41,31 @@ import (
// Converting to/from a Value and a concrete Go value panics on type mismatch.
// For example, ValueOf("hello").Int() panics because this attempts to
// retrieve an int64 from a string.
//
// List, Map, and Message Values are called "composite" values.
//
// A composite Value may alias (reference) memory at some location,
// such that changes to the Value updates the that location.
// A composite value acquired with a Mutable method, such as Message.Mutable,
// always references the source object.
//
// For example:
// // Append a 0 to a "repeated int32" field.
// // Since the Value returned by Mutable is guaranteed to alias
// // the source message, modifying the Value modifies the message.
// message.Mutable(fieldDesc).(List).Append(protoreflect.ValueOfInt32(0))
//
// // Assign [0] to a "repeated int32" field by creating a new Value,
// // modifying it, and assigning it.
// list := message.NewField(fieldDesc).(List)
// list.Append(protoreflect.ValueOfInt32(0))
// message.Set(fieldDesc, list)
// // ERROR: Since it is not defined whether Set aliases the source,
// // appending to the List here may or may not modify the message.
// list.Append(protoreflect.ValueOfInt32(0))
//
// Some operations, such as Message.Get, may return an "empty, read-only"
// composite Value. Modifying an empty, read-only value panics.
type Value value
// The protoreflect API uses a custom Value union type instead of interface{}

1
vendor/google.golang.org/protobuf/reflect/protoreflect/value_unsafe.go generated vendored
View File

@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !purego && !appengine
// +build !purego,!appengine
package protoreflect

1
vendor/google.golang.org/protobuf/runtime/protoiface/methods.go generated vendored
View File

@ -103,6 +103,7 @@ type UnmarshalInput = struct {
FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error)
FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error)
}
Depth int
}
// UnmarshalOutput is output from the Unmarshal method.

18
vendor/modules.txt vendored
View File

@ -12,7 +12,7 @@ github.com/beorn7/perks/quantile
# github.com/cespare/xxhash/v2 v2.1.2
## explicit; go 1.11
github.com/cespare/xxhash/v2
# github.com/containerd/containerd v1.6.8
# github.com/containerd/containerd v1.6.10
## explicit; go 1.17
github.com/containerd/containerd/errdefs
github.com/containerd/containerd/log
@ -107,6 +107,7 @@ github.com/gogo/protobuf/sortkeys
github.com/gogo/protobuf/types
# github.com/golang/protobuf v1.5.2
## explicit; go 1.9
github.com/golang/protobuf/jsonpb
github.com/golang/protobuf/proto
github.com/golang/protobuf/ptypes
github.com/golang/protobuf/ptypes/any
@ -292,10 +293,10 @@ golang.org/x/text/width
# golang.org/x/time v0.1.0
## explicit
golang.org/x/time/rate
# google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa
## explicit; go 1.11
# google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21
## explicit; go 1.15
google.golang.org/genproto/googleapis/rpc/status
# google.golang.org/grpc v1.45.0
# google.golang.org/grpc v1.47.0
## explicit; go 1.14
google.golang.org/grpc
google.golang.org/grpc/attributes
@ -305,6 +306,7 @@ google.golang.org/grpc/balancer/base
google.golang.org/grpc/balancer/grpclb/state
google.golang.org/grpc/balancer/roundrobin
google.golang.org/grpc/binarylog/grpc_binarylog_v1
google.golang.org/grpc/channelz
google.golang.org/grpc/codes
google.golang.org/grpc/connectivity
google.golang.org/grpc/credentials
@ -314,6 +316,7 @@ google.golang.org/grpc/encoding/proto
google.golang.org/grpc/grpclog
google.golang.org/grpc/internal
google.golang.org/grpc/internal/backoff
google.golang.org/grpc/internal/balancer/gracefulswitch
google.golang.org/grpc/internal/balancerload
google.golang.org/grpc/internal/binarylog
google.golang.org/grpc/internal/buffer
@ -325,6 +328,7 @@ google.golang.org/grpc/internal/grpcrand
google.golang.org/grpc/internal/grpcsync
google.golang.org/grpc/internal/grpcutil
google.golang.org/grpc/internal/metadata
google.golang.org/grpc/internal/pretty
google.golang.org/grpc/internal/resolver
google.golang.org/grpc/internal/resolver/dns
google.golang.org/grpc/internal/resolver/passthrough
@ -342,14 +346,16 @@ google.golang.org/grpc/serviceconfig
google.golang.org/grpc/stats
google.golang.org/grpc/status
google.golang.org/grpc/tap
# google.golang.org/protobuf v1.27.1
## explicit; go 1.9
# google.golang.org/protobuf v1.28.0
## explicit; go 1.11
google.golang.org/protobuf/encoding/protojson
google.golang.org/protobuf/encoding/prototext
google.golang.org/protobuf/encoding/protowire
google.golang.org/protobuf/internal/descfmt
google.golang.org/protobuf/internal/descopts
google.golang.org/protobuf/internal/detrand
google.golang.org/protobuf/internal/encoding/defval
google.golang.org/protobuf/internal/encoding/json
google.golang.org/protobuf/internal/encoding/messageset
google.golang.org/protobuf/internal/encoding/tag
google.golang.org/protobuf/internal/encoding/text