From 0c29d6bac1eecb88fbb4a23d179d594ba769a134 Mon Sep 17 00:00:00 2001 From: Laura Brehm Date: Mon, 8 Jul 2024 13:50:12 +0100 Subject: [PATCH] auth: add support for oauth device-code login This commit adds support for the oauth [device-code](https://auth0.com/docs/get-started/authentication-and-authorization-flow/device-authorization-flow) login flow when authenticating against the official registry. This is achieved by adding `cli/internal/oauth`, which contains code to manage interacting with the Docker OAuth tenant (`login.docker.com`), including launching the device-code flow, refreshing access using the refresh-token, and logging out. The `OAuthManager` introduced here is also made available through the `command.Cli` interface method `OAuthManager()`. In order to maintain compatibility with any clients manually accessing the credentials through `~/.docker/config.json` or via credential helpers, the added `OAuthManager` uses the retrieved access token to automatically generate a PAT with Hub, and store that in the credentials. Signed-off-by: Laura Brehm (cherry picked from commit fcfdd7b91fbbd41dfdc80d5d66f28337916d935c) Signed-off-by: Laura Brehm --- cli/command/registry/login.go | 17 +- cli/command/registry/login_test.go | 4 +- cli/command/registry/logout.go | 10 +- cli/internal/oauth/api/api.go | 228 ++++ cli/internal/oauth/api/api_test.go | 428 ++++++ cli/internal/oauth/api/state.go | 26 + cli/internal/oauth/jwt.go | 73 + cli/internal/oauth/manager/manager.go | 199 +++ cli/internal/oauth/manager/manager_test.go | 363 +++++ cli/internal/oauth/manager/util.go | 28 + vendor.mod | 5 +- vendor.sum | 43 +- .../github.com/fvbommel/sortorder/README.md | 4 + .../github.com/fvbommel/sortorder/natsort.go | 14 +- .../github.com/go-jose/go-jose/v3/.gitignore | 2 + .../go-jose/go-jose/v3/.golangci.yml | 53 + .../github.com/go-jose/go-jose/v3/.travis.yml | 33 + .../go-jose/go-jose/v3/CHANGELOG.md | 78 ++ .../go-jose/go-jose/v3/CONTRIBUTING.md | 15 + vendor/github.com/go-jose/go-jose/v3/LICENSE | 202 +++ .../github.com/go-jose/go-jose/v3/README.md | 108 ++ .../github.com/go-jose/go-jose/v3/SECURITY.md | 13 + .../go-jose/go-jose/v3/asymmetric.go | 595 ++++++++ .../go-jose/go-jose/v3/cipher/cbc_hmac.go | 196 +++ .../go-jose/go-jose/v3/cipher/concat_kdf.go | 75 + .../go-jose/go-jose/v3/cipher/ecdh_es.go | 86 ++ .../go-jose/go-jose/v3/cipher/key_wrap.go | 109 ++ .../github.com/go-jose/go-jose/v3/crypter.go | 593 ++++++++ vendor/github.com/go-jose/go-jose/v3/doc.go | 25 + .../github.com/go-jose/go-jose/v3/encoding.go | 237 ++++ .../go-jose/go-jose/v3/json/LICENSE | 27 + .../go-jose/go-jose/v3/json/README.md | 13 + .../go-jose/go-jose/v3/json/decode.go | 1216 +++++++++++++++++ .../go-jose/go-jose/v3/json/encode.go | 1197 ++++++++++++++++ .../go-jose/go-jose/v3/json/indent.go | 141 ++ .../go-jose/go-jose/v3/json/scanner.go | 623 +++++++++ .../go-jose/go-jose/v3/json/stream.go | 484 +++++++ .../go-jose/go-jose/v3/json/tags.go | 44 + vendor/github.com/go-jose/go-jose/v3/jwe.go | 295 ++++ vendor/github.com/go-jose/go-jose/v3/jwk.go | 812 +++++++++++ vendor/github.com/go-jose/go-jose/v3/jws.go | 369 +++++ .../go-jose/go-jose/v3/jwt/builder.go | 334 +++++ .../go-jose/go-jose/v3/jwt/claims.go | 130 ++ .../github.com/go-jose/go-jose/v3/jwt/doc.go | 20 + .../go-jose/go-jose/v3/jwt/errors.go | 53 + .../github.com/go-jose/go-jose/v3/jwt/jwt.go | 133 ++ .../go-jose/go-jose/v3/jwt/validation.go | 120 ++ .../github.com/go-jose/go-jose/v3/opaque.go | 144 ++ .../github.com/go-jose/go-jose/v3/shared.go | 525 +++++++ .../github.com/go-jose/go-jose/v3/signing.go | 487 +++++++ .../go-jose/go-jose/v3/symmetric.go | 505 +++++++ vendor/github.com/pkg/browser/LICENSE | 23 + vendor/github.com/pkg/browser/README.md | 55 + vendor/github.com/pkg/browser/browser.go | 57 + .../github.com/pkg/browser/browser_darwin.go | 5 + .../github.com/pkg/browser/browser_freebsd.go | 14 + .../github.com/pkg/browser/browser_linux.go | 21 + .../github.com/pkg/browser/browser_netbsd.go | 14 + .../github.com/pkg/browser/browser_openbsd.go | 14 + .../pkg/browser/browser_unsupported.go | 12 + .../github.com/pkg/browser/browser_windows.go | 7 + vendor/modules.txt | 13 +- 62 files changed, 11751 insertions(+), 18 deletions(-) create mode 100644 cli/internal/oauth/api/api.go create mode 100644 cli/internal/oauth/api/api_test.go create mode 100644 cli/internal/oauth/api/state.go create mode 100644 cli/internal/oauth/jwt.go create mode 100644 cli/internal/oauth/manager/manager.go create mode 100644 cli/internal/oauth/manager/manager_test.go create mode 100644 cli/internal/oauth/manager/util.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/.gitignore create mode 100644 vendor/github.com/go-jose/go-jose/v3/.golangci.yml create mode 100644 vendor/github.com/go-jose/go-jose/v3/.travis.yml create mode 100644 vendor/github.com/go-jose/go-jose/v3/CHANGELOG.md create mode 100644 vendor/github.com/go-jose/go-jose/v3/CONTRIBUTING.md create mode 100644 vendor/github.com/go-jose/go-jose/v3/LICENSE create mode 100644 vendor/github.com/go-jose/go-jose/v3/README.md create mode 100644 vendor/github.com/go-jose/go-jose/v3/SECURITY.md create mode 100644 vendor/github.com/go-jose/go-jose/v3/asymmetric.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/cipher/cbc_hmac.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/cipher/concat_kdf.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/cipher/ecdh_es.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/cipher/key_wrap.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/crypter.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/doc.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/encoding.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/json/LICENSE create mode 100644 vendor/github.com/go-jose/go-jose/v3/json/README.md create mode 100644 vendor/github.com/go-jose/go-jose/v3/json/decode.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/json/encode.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/json/indent.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/json/scanner.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/json/stream.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/json/tags.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jwe.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jwk.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jws.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jwt/builder.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jwt/claims.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jwt/doc.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jwt/errors.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jwt/jwt.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/jwt/validation.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/opaque.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/shared.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/signing.go create mode 100644 vendor/github.com/go-jose/go-jose/v3/symmetric.go create mode 100644 vendor/github.com/pkg/browser/LICENSE create mode 100644 vendor/github.com/pkg/browser/README.md create mode 100644 vendor/github.com/pkg/browser/browser.go create mode 100644 vendor/github.com/pkg/browser/browser_darwin.go create mode 100644 vendor/github.com/pkg/browser/browser_freebsd.go create mode 100644 vendor/github.com/pkg/browser/browser_linux.go create mode 100644 vendor/github.com/pkg/browser/browser_netbsd.go create mode 100644 vendor/github.com/pkg/browser/browser_openbsd.go create mode 100644 vendor/github.com/pkg/browser/browser_unsupported.go create mode 100644 vendor/github.com/pkg/browser/browser_windows.go diff --git a/cli/command/registry/login.go b/cli/command/registry/login.go index 75cf7c5265..158ba69dd8 100644 --- a/cli/command/registry/login.go +++ b/cli/command/registry/login.go @@ -10,6 +10,7 @@ import ( "github.com/docker/cli/cli/command" "github.com/docker/cli/cli/command/completion" configtypes "github.com/docker/cli/cli/config/types" + "github.com/docker/cli/cli/internal/oauth/manager" registrytypes "github.com/docker/docker/api/types/registry" "github.com/docker/docker/client" "github.com/docker/docker/errdefs" @@ -121,9 +122,19 @@ func runLogin(ctx context.Context, dockerCli command.Cli, opts loginOptions) err response, err = loginWithCredStoreCreds(ctx, dockerCli, &authConfig) } if err != nil || authConfig.Username == "" || authConfig.Password == "" { - err = command.ConfigureAuth(ctx, dockerCli, opts.user, opts.password, &authConfig, isDefaultRegistry) - if err != nil { - return err + if isDefaultRegistry && opts.user == "" && opts.password == "" { + // todo(laurazard: clean this up + store := dockerCli.ConfigFile().GetCredentialsStore(serverAddress) + oauthAuthConfig, err := manager.NewManager(store).LoginDevice(ctx, dockerCli.Err()) + if err != nil { + return err + } + authConfig = registrytypes.AuthConfig(*oauthAuthConfig) + } else { + err = command.ConfigureAuth(ctx, dockerCli, opts.user, opts.password, &authConfig, isDefaultRegistry) + if err != nil { + return err + } } response, err = clnt.RegistryLogin(ctx, authConfig) diff --git a/cli/command/registry/login_test.go b/cli/command/registry/login_test.go index a6ee4a7f60..a28191994b 100644 --- a/cli/command/registry/login_test.go +++ b/cli/command/registry/login_test.go @@ -213,7 +213,9 @@ func TestLoginTermination(t *testing.T) { runErr := make(chan error) go func() { - runErr <- runLogin(ctx, cli, loginOptions{}) + runErr <- runLogin(ctx, cli, loginOptions{ + user: "test-user", + }) }() // Let the prompt get canceled by the context diff --git a/cli/command/registry/logout.go b/cli/command/registry/logout.go index 580a3b8746..4eb479f3e5 100644 --- a/cli/command/registry/logout.go +++ b/cli/command/registry/logout.go @@ -7,6 +7,7 @@ import ( "github.com/docker/cli/cli" "github.com/docker/cli/cli/command" "github.com/docker/cli/cli/config/credentials" + "github.com/docker/cli/cli/internal/oauth/manager" "github.com/docker/docker/registry" "github.com/spf13/cobra" ) @@ -34,7 +35,7 @@ func NewLogoutCommand(dockerCli command.Cli) *cobra.Command { return cmd } -func runLogout(_ context.Context, dockerCli command.Cli, serverAddress string) error { +func runLogout(ctx context.Context, dockerCli command.Cli, serverAddress string) error { var isDefaultRegistry bool if serverAddress == "" { @@ -53,6 +54,13 @@ func runLogout(_ context.Context, dockerCli command.Cli, serverAddress string) e regsToLogout = append(regsToLogout, hostnameAddress, "http://"+hostnameAddress, "https://"+hostnameAddress) } + if isDefaultRegistry { + store := dockerCli.ConfigFile().GetCredentialsStore(registry.IndexServer) + if err := manager.NewManager(store).Logout(ctx); err != nil { + fmt.Fprintf(dockerCli.Err(), "WARNING: %v\n", err) + } + } + fmt.Fprintf(dockerCli.Out(), "Removing login credentials for %s\n", hostnameAddress) errs := make(map[string]error) for _, r := range regsToLogout { diff --git a/cli/internal/oauth/api/api.go b/cli/internal/oauth/api/api.go new file mode 100644 index 0000000000..ddcba749fd --- /dev/null +++ b/cli/internal/oauth/api/api.go @@ -0,0 +1,228 @@ +// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16: +//go:build go1.21 + +package api + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "runtime" + "strings" + "time" + + "github.com/docker/cli/cli/version" +) + +type OAuthAPI interface { + GetDeviceCode(ctx context.Context, audience string) (State, error) + WaitForDeviceToken(ctx context.Context, state State) (TokenResponse, error) + RevokeToken(ctx context.Context, refreshToken string) error + GetAutoPAT(ctx context.Context, audience string, res TokenResponse) (string, error) +} + +// API represents API interactions with Auth0. +type API struct { + // TenantURL is the base used for each request to Auth0. + TenantURL string + // ClientID is the client ID for the application to auth with the tenant. + ClientID string + // Scopes are the scopes that are requested during the device auth flow. + Scopes []string +} + +// TokenResponse represents the response of the /oauth/token route. +type TokenResponse struct { + AccessToken string `json:"access_token"` + IDToken string `json:"id_token"` + RefreshToken string `json:"refresh_token"` + Scope string `json:"scope"` + ExpiresIn int `json:"expires_in"` + TokenType string `json:"token_type"` + Error *string `json:"error,omitempty"` + ErrorDescription string `json:"error_description,omitempty"` +} + +var ErrTimeout = errors.New("timed out waiting for device token") + +// GetDeviceCode initiates the device-code auth flow with the tenant. +// The state returned contains the device code that the user must use to +// authenticate, as well as the URL to visit, etc. +func (a API) GetDeviceCode(ctx context.Context, audience string) (State, error) { + data := url.Values{ + "client_id": {a.ClientID}, + "audience": {audience}, + "scope": {strings.Join(a.Scopes, " ")}, + } + + deviceCodeURL := a.TenantURL + "/oauth/device/code" + resp, err := postForm(ctx, deviceCodeURL, strings.NewReader(data.Encode())) + if err != nil { + return State{}, err + } + defer func() { + _ = resp.Body.Close() + }() + + if resp.StatusCode != http.StatusOK { + return State{}, tryDecodeOAuthError(resp) + } + + var state State + err = json.NewDecoder(resp.Body).Decode(&state) + if err != nil { + return state, fmt.Errorf("failed to get device code: %w", err) + } + + return state, nil +} + +func tryDecodeOAuthError(resp *http.Response) error { + var body map[string]any + if err := json.NewDecoder(resp.Body).Decode(&body); err == nil { + if errorDescription, ok := body["error_description"].(string); ok { + return errors.New(errorDescription) + } + } + return errors.New("unexpected response from tenant: " + resp.Status) +} + +// WaitForDeviceToken polls the tenant to get access/refresh tokens for the user. +// This should be called after GetDeviceCode, and will block until the user has +// authenticated or we have reached the time limit for authenticating (based on +// the response from GetDeviceCode). +func (a API) WaitForDeviceToken(ctx context.Context, state State) (TokenResponse, error) { + ticker := time.NewTicker(state.IntervalDuration()) + defer ticker.Stop() + timeout := time.After(state.ExpiryDuration()) + + for { + select { + case <-ctx.Done(): + return TokenResponse{}, ctx.Err() + case <-ticker.C: + res, err := a.getDeviceToken(ctx, state) + if err != nil { + return res, err + } + + if res.Error != nil { + if *res.Error == "authorization_pending" { + continue + } + + return res, errors.New(res.ErrorDescription) + } + + return res, nil + case <-timeout: + return TokenResponse{}, ErrTimeout + } + } +} + +// getToken calls the token endpoint of Auth0 and returns the response. +func (a API) getDeviceToken(ctx context.Context, state State) (TokenResponse, error) { + data := url.Values{ + "client_id": {a.ClientID}, + "grant_type": {"urn:ietf:params:oauth:grant-type:device_code"}, + "device_code": {state.DeviceCode}, + } + oauthTokenURL := a.TenantURL + "/oauth/token" + + resp, err := postForm(ctx, oauthTokenURL, strings.NewReader(data.Encode())) + if err != nil { + return TokenResponse{}, fmt.Errorf("failed to get tokens: %w", err) + } + defer func() { + _ = resp.Body.Close() + }() + + // this endpoint returns a 403 with an `authorization_pending` error until the + // user has authenticated, so we don't check the status code here and instead + // decode the response and check for the error. + var res TokenResponse + err = json.NewDecoder(resp.Body).Decode(&res) + if err != nil { + return res, fmt.Errorf("failed to decode response: %w", err) + } + + return res, nil +} + +// RevokeToken revokes a refresh token with the tenant so that it can no longer +// be used to get new tokens. +func (a API) RevokeToken(ctx context.Context, refreshToken string) error { + data := url.Values{ + "client_id": {a.ClientID}, + "token": {refreshToken}, + } + + revokeURL := a.TenantURL + "/oauth/revoke" + resp, err := postForm(ctx, revokeURL, strings.NewReader(data.Encode())) + if err != nil { + return err + } + defer func() { + _ = resp.Body.Close() + }() + + if resp.StatusCode != http.StatusOK { + return tryDecodeOAuthError(resp) + } + + return nil +} + +func postForm(ctx context.Context, reqURL string, data io.Reader) (*http.Response, error) { + req, err := http.NewRequestWithContext(ctx, http.MethodPost, reqURL, data) + if err != nil { + return nil, err + } + + req.Header.Set("Content-Type", "application/x-www-form-urlencoded") + cliVersion := strings.ReplaceAll(version.Version, ".", "_") + req.Header.Set("User-Agent", fmt.Sprintf("docker-cli:%s:%s-%s", cliVersion, runtime.GOOS, runtime.GOARCH)) + + return http.DefaultClient.Do(req) +} + +func (a API) GetAutoPAT(ctx context.Context, audience string, res TokenResponse) (string, error) { + patURL := audience + "/v2/access-tokens/desktop-generate" + req, err := http.NewRequestWithContext(ctx, http.MethodPost, patURL, nil) + if err != nil { + return "", err + } + + req.Header.Set("Authorization", "Bearer "+res.AccessToken) + req.Header.Set("Content-Type", "application/json") + resp, err := http.DefaultClient.Do(req) + if err != nil { + return "", err + } + defer func() { + _ = resp.Body.Close() + }() + + if resp.StatusCode != http.StatusCreated { + return "", fmt.Errorf("unexpected response from Hub: %s", resp.Status) + } + + var response patGenerateResponse + err = json.NewDecoder(resp.Body).Decode(&response) + if err != nil { + return "", err + } + + return response.Data.Token, nil +} + +type patGenerateResponse struct { + Data struct { + Token string `json:"token"` + } +} diff --git a/cli/internal/oauth/api/api_test.go b/cli/internal/oauth/api/api_test.go new file mode 100644 index 0000000000..34b9600f5c --- /dev/null +++ b/cli/internal/oauth/api/api_test.go @@ -0,0 +1,428 @@ +package api + +import ( + "context" + "encoding/json" + "net/http" + "net/http/httptest" + "sync/atomic" + "testing" + "time" + + "gotest.tools/v3/assert" +) + +func TestGetDeviceCode(t *testing.T) { + t.Parallel() + + t.Run("success", func(t *testing.T) { + t.Parallel() + var clientID, audience, scope, path string + expectedState := State{ + DeviceCode: "aDeviceCode", + UserCode: "aUserCode", + VerificationURI: "aVerificationURI", + ExpiresIn: 60, + } + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + r.ParseForm() + clientID = r.FormValue("client_id") + audience = r.FormValue("audience") + scope = r.FormValue("scope") + path = r.URL.Path + + jsonState, err := json.Marshal(expectedState) + assert.NilError(t, err) + + _, _ = w.Write(jsonState) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + state, err := api.GetDeviceCode(context.Background(), "anAudience") + assert.NilError(t, err) + + assert.DeepEqual(t, expectedState, state) + assert.Equal(t, clientID, "aClientID") + assert.Equal(t, audience, "anAudience") + assert.Equal(t, scope, "bork meow") + assert.Equal(t, path, "/oauth/device/code") + }) + + t.Run("error w/ description", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + jsonState, err := json.Marshal(TokenResponse{ + ErrorDescription: "invalid audience", + }) + assert.NilError(t, err) + + w.WriteHeader(http.StatusBadRequest) + _, _ = w.Write(jsonState) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + _, err := api.GetDeviceCode(context.Background(), "bad_audience") + + assert.ErrorContains(t, err, "invalid audience") + }) + + t.Run("general error", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + http.Error(w, "an error", http.StatusInternalServerError) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + _, err := api.GetDeviceCode(context.Background(), "anAudience") + + assert.ErrorContains(t, err, "unexpected response from tenant: 500 Internal Server Error") + }) + + t.Run("canceled context", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + time.Sleep(2 * time.Second) + http.Error(w, "an error", http.StatusInternalServerError) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + ctx, cancel := context.WithCancel(context.Background()) + go func() { + time.Sleep(1 * time.Second) + cancel() + }() + _, err := api.GetDeviceCode(ctx, "anAudience") + + assert.ErrorContains(t, err, "context canceled") + }) +} + +func TestWaitForDeviceToken(t *testing.T) { + t.Parallel() + + t.Run("success", func(t *testing.T) { + t.Parallel() + expectedToken := TokenResponse{ + AccessToken: "a-real-token", + IDToken: "", + RefreshToken: "the-refresh-token", + Scope: "", + ExpiresIn: 3600, + TokenType: "", + } + var respond atomic.Bool + go func() { + time.Sleep(5 * time.Second) + respond.Store(true) + }() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + assert.Equal(t, "POST", r.Method) + assert.Equal(t, "/oauth/token", r.URL.Path) + assert.Equal(t, r.FormValue("client_id"), "aClientID") + assert.Equal(t, r.FormValue("grant_type"), "urn:ietf:params:oauth:grant-type:device_code") + assert.Equal(t, r.FormValue("device_code"), "aDeviceCode") + + if respond.Load() { + jsonState, err := json.Marshal(expectedToken) + assert.NilError(t, err) + w.Write(jsonState) + } else { + pendingError := "authorization_pending" + jsonResponse, err := json.Marshal(TokenResponse{ + Error: &pendingError, + }) + assert.NilError(t, err) + w.Write(jsonResponse) + } + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + state := State{ + DeviceCode: "aDeviceCode", + UserCode: "aUserCode", + Interval: 1, + ExpiresIn: 30, + } + token, err := api.WaitForDeviceToken(context.Background(), state) + assert.NilError(t, err) + + assert.DeepEqual(t, token, expectedToken) + }) + + t.Run("timeout", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + assert.Equal(t, "POST", r.Method) + assert.Equal(t, "/oauth/token", r.URL.Path) + assert.Equal(t, r.FormValue("client_id"), "aClientID") + assert.Equal(t, r.FormValue("grant_type"), "urn:ietf:params:oauth:grant-type:device_code") + assert.Equal(t, r.FormValue("device_code"), "aDeviceCode") + + pendingError := "authorization_pending" + jsonResponse, err := json.Marshal(TokenResponse{ + Error: &pendingError, + }) + assert.NilError(t, err) + w.Write(jsonResponse) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + state := State{ + DeviceCode: "aDeviceCode", + UserCode: "aUserCode", + Interval: 1, + ExpiresIn: 1, + } + + _, err := api.WaitForDeviceToken(context.Background(), state) + + assert.ErrorIs(t, err, ErrTimeout) + }) + + t.Run("canceled context", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + pendingError := "authorization_pending" + jsonResponse, err := json.Marshal(TokenResponse{ + Error: &pendingError, + }) + assert.NilError(t, err) + w.Write(jsonResponse) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + state := State{ + DeviceCode: "aDeviceCode", + UserCode: "aUserCode", + Interval: 1, + ExpiresIn: 5, + } + + ctx, cancel := context.WithCancel(context.Background()) + go func() { + time.Sleep(1 * time.Second) + cancel() + }() + _, err := api.WaitForDeviceToken(ctx, state) + + assert.ErrorContains(t, err, "context canceled") + }) +} + +func TestRevoke(t *testing.T) { + t.Parallel() + + t.Run("success", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + assert.Equal(t, "POST", r.Method) + assert.Equal(t, "/oauth/revoke", r.URL.Path) + assert.Equal(t, r.FormValue("client_id"), "aClientID") + assert.Equal(t, r.FormValue("token"), "v1.a-refresh-token") + + w.WriteHeader(http.StatusOK) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + err := api.RevokeToken(context.Background(), "v1.a-refresh-token") + assert.NilError(t, err) + }) + + t.Run("unexpected response", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + assert.Equal(t, "POST", r.Method) + assert.Equal(t, "/oauth/revoke", r.URL.Path) + assert.Equal(t, r.FormValue("client_id"), "aClientID") + assert.Equal(t, r.FormValue("token"), "v1.a-refresh-token") + + w.WriteHeader(http.StatusNotFound) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + err := api.RevokeToken(context.Background(), "v1.a-refresh-token") + assert.ErrorContains(t, err, "unexpected response from tenant: 404 Not Found") + }) + + t.Run("error w/ description", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + jsonState, err := json.Marshal(TokenResponse{ + ErrorDescription: "invalid client id", + }) + assert.NilError(t, err) + + w.WriteHeader(http.StatusBadRequest) + _, _ = w.Write(jsonState) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + err := api.RevokeToken(context.Background(), "v1.a-refresh-token") + assert.ErrorContains(t, err, "invalid client id") + }) + + t.Run("canceled context", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + assert.Equal(t, "POST", r.Method) + assert.Equal(t, "/oauth/revoke", r.URL.Path) + assert.Equal(t, r.FormValue("client_id"), "aClientID") + assert.Equal(t, r.FormValue("token"), "v1.a-refresh-token") + + w.WriteHeader(http.StatusOK) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + ctx, cancel := context.WithCancel(context.Background()) + cancel() + + err := api.RevokeToken(ctx, "v1.a-refresh-token") + + assert.ErrorContains(t, err, "context canceled") + }) +} + +func TestGetAutoPAT(t *testing.T) { + t.Parallel() + + t.Run("success", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + assert.Equal(t, "POST", r.Method) + assert.Equal(t, "/v2/access-tokens/desktop-generate", r.URL.Path) + assert.Equal(t, "Bearer bork", r.Header.Get("Authorization")) + assert.Equal(t, "application/json", r.Header.Get("Content-Type")) + + marshalledResponse, err := json.Marshal(patGenerateResponse{ + Data: struct { + Token string `json:"token"` + }{ + Token: "a-docker-pat", + }, + }) + assert.NilError(t, err) + w.WriteHeader(http.StatusCreated) + w.Write(marshalledResponse) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + pat, err := api.GetAutoPAT(context.Background(), ts.URL, TokenResponse{ + AccessToken: "bork", + }) + assert.NilError(t, err) + + assert.Equal(t, "a-docker-pat", pat) + }) + + t.Run("general error", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusInternalServerError) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + + _, err := api.GetAutoPAT(context.Background(), ts.URL, TokenResponse{ + AccessToken: "bork", + }) + assert.ErrorContains(t, err, "unexpected response from Hub: 500 Internal Server Error") + }) + + t.Run("context canceled", func(t *testing.T) { + t.Parallel() + ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + assert.Equal(t, "POST", r.Method) + assert.Equal(t, "/v2/access-tokens/desktop-generate", r.URL.Path) + assert.Equal(t, "Bearer bork", r.Header.Get("Authorization")) + assert.Equal(t, "application/json", r.Header.Get("Content-Type")) + + marshalledResponse, err := json.Marshal(patGenerateResponse{ + Data: struct { + Token string `json:"token"` + }{ + Token: "a-docker-pat", + }, + }) + assert.NilError(t, err) + + time.Sleep(500 * time.Millisecond) + w.WriteHeader(http.StatusCreated) + w.Write(marshalledResponse) + })) + defer ts.Close() + api := API{ + TenantURL: ts.URL, + ClientID: "aClientID", + Scopes: []string{"bork", "meow"}, + } + ctx, cancel := context.WithCancel(context.Background()) + cancel() + + pat, err := api.GetAutoPAT(ctx, ts.URL, TokenResponse{ + AccessToken: "bork", + }) + + assert.ErrorContains(t, err, "context canceled") + assert.Equal(t, "", pat) + }) +} diff --git a/cli/internal/oauth/api/state.go b/cli/internal/oauth/api/state.go new file mode 100644 index 0000000000..099fe49eca --- /dev/null +++ b/cli/internal/oauth/api/state.go @@ -0,0 +1,26 @@ +package api + +import ( + "time" +) + +// State represents the state of exchange after submitting. +type State struct { + DeviceCode string `json:"device_code"` + UserCode string `json:"user_code"` + VerificationURI string `json:"verification_uri_complete"` + ExpiresIn int `json:"expires_in"` + Interval int `json:"interval"` +} + +// IntervalDuration returns the duration that should be waited between each auth +// polling event. +func (s State) IntervalDuration() time.Duration { + return time.Second * time.Duration(s.Interval) +} + +// ExpiryDuration returns the total duration for which the client should keep +// polling. +func (s State) ExpiryDuration() time.Duration { + return time.Second * time.Duration(s.ExpiresIn) +} diff --git a/cli/internal/oauth/jwt.go b/cli/internal/oauth/jwt.go new file mode 100644 index 0000000000..9397ff1795 --- /dev/null +++ b/cli/internal/oauth/jwt.go @@ -0,0 +1,73 @@ +package oauth + +import ( + "github.com/go-jose/go-jose/v3/jwt" +) + +// Claims represents standard claims along with some custom ones. +type Claims struct { + jwt.Claims + + // Domain is the domain claims for the token. + Domain DomainClaims `json:"https://hub.docker.com"` + + // Scope is the scopes for the claims as a string that is space delimited. + Scope string `json:"scope,omitempty"` +} + +// DomainClaims represents a custom claim data set that doesn't change the spec +// payload. This is primarily introduced by Auth0 and is defined by a fully +// specified URL as it's key. e.g. "https://hub.docker.com" +type DomainClaims struct { + // UUID is the user, machine client, or organization's UUID in our database. + UUID string `json:"uuid"` + + // Email is the user's email address. + Email string `json:"email"` + + // Username is the user's username. + Username string `json:"username"` + + // Source is the source of the JWT. This should look like + // `docker_{type}|{id}`. + Source string `json:"source"` + + // SessionID is the unique ID of the token. + SessionID string `json:"session_id"` + + // ClientID is the client_id that generated the token. This is filled if + // M2M. + ClientID string `json:"client_id,omitempty"` + + // ClientName is the name of the client that generated the token. This is + // filled if M2M. + ClientName string `json:"client_name,omitempty"` +} + +// Source represents a source of a JWT. +type Source struct { + // Type is the type of source. This could be "pat" etc. + Type string `json:"type"` + + // ID is the identifier to the source type. If "pat" then this will be the + // ID of the PAT. + ID string `json:"id"` +} + +// GetClaims returns claims from an access token without verification. +func GetClaims(accessToken string) (claims Claims, err error) { + token, err := parseSigned(accessToken) + if err != nil { + return + } + + err = token.UnsafeClaimsWithoutVerification(&claims) + + return +} + +// parseSigned parses a JWT and returns the signature object or error. This does +// not verify the validity of the JWT. +func parseSigned(token string) (*jwt.JSONWebToken, error) { + return jwt.ParseSigned(token) +} diff --git a/cli/internal/oauth/manager/manager.go b/cli/internal/oauth/manager/manager.go new file mode 100644 index 0000000000..2dce3a4647 --- /dev/null +++ b/cli/internal/oauth/manager/manager.go @@ -0,0 +1,199 @@ +package manager + +import ( + "bufio" + "context" + "errors" + "fmt" + "io" + "os" + "strings" + + "github.com/docker/cli/cli/config/credentials" + "github.com/docker/cli/cli/config/types" + "github.com/docker/cli/cli/internal/oauth" + "github.com/docker/cli/cli/internal/oauth/api" + "github.com/docker/docker/registry" + "github.com/morikuni/aec" + + "github.com/pkg/browser" +) + +// OAuthManager is the manager responsible for handling authentication +// flows with the oauth tenant. +type OAuthManager struct { + store credentials.Store + tenant string + audience string + clientID string + api api.OAuthAPI + openBrowser func(string) error +} + +// OAuthManagerOptions are the options used for New to create a new auth manager. +type OAuthManagerOptions struct { + Store credentials.Store + Audience string + ClientID string + Scopes []string + Tenant string + DeviceName string + OpenBrowser func(string) error +} + +func New(options OAuthManagerOptions) *OAuthManager { + scopes := []string{"openid", "offline_access"} + if len(options.Scopes) > 0 { + scopes = options.Scopes + } + + openBrowser := options.OpenBrowser + if openBrowser == nil { + // Prevent errors from missing binaries (like xdg-open) from + // cluttering the output. We can handle errors ourselves. + browser.Stdout = io.Discard + browser.Stderr = io.Discard + openBrowser = browser.OpenURL + } + + return &OAuthManager{ + clientID: options.ClientID, + audience: options.Audience, + tenant: options.Tenant, + store: options.Store, + api: api.API{ + TenantURL: "https://" + options.Tenant, + ClientID: options.ClientID, + Scopes: scopes, + }, + openBrowser: openBrowser, + } +} + +// LoginDevice launches the device authentication flow with the tenant, +// printing instructions to the provided writer and attempting to open the +// browser for the user to authenticate. +// After the user completes the browser login, LoginDevice uses the retrieved +// tokens to create a Hub PAT which is returned to the caller. +// The retrieved tokens are stored in the credentials store (under a separate +// key), and the refresh token is concatenated with the client ID. +func (m *OAuthManager) LoginDevice(ctx context.Context, w io.Writer) (*types.AuthConfig, error) { + state, err := m.api.GetDeviceCode(ctx, m.audience) + if err != nil { + return nil, fmt.Errorf("failed to get device code: %w", err) + } + + if state.UserCode == "" { + return nil, errors.New("no user code returned") + } + + _, _ = fmt.Fprintln(w, aec.Bold.Apply("\nUSING WEB BASED LOGIN")) + _, _ = fmt.Fprintln(w, "To sign in with credentials on the command line, use 'docker login -u '") + _, _ = fmt.Fprintf(w, "\nYour one-time device confirmation code is: "+aec.Bold.Apply("%s\n"), state.UserCode) + _, _ = fmt.Fprintf(w, aec.Bold.Apply("Press ENTER")+" to open your browser or submit your device code here: "+aec.Underline.Apply("%s\n"), strings.Split(state.VerificationURI, "?")[0]) + + tokenResChan := make(chan api.TokenResponse) + waitForTokenErrChan := make(chan error) + go func() { + tokenRes, err := m.api.WaitForDeviceToken(ctx, state) + if err != nil { + waitForTokenErrChan <- err + return + } + tokenResChan <- tokenRes + }() + + go func() { + reader := bufio.NewReader(os.Stdin) + _, _ = reader.ReadString('\n') + _ = m.openBrowser(state.VerificationURI) + }() + + _, _ = fmt.Fprint(w, "\nWaiting for authentication in the browser…\n") + var tokenRes api.TokenResponse + select { + case <-ctx.Done(): + return nil, errors.New("login canceled") + case err := <-waitForTokenErrChan: + return nil, fmt.Errorf("failed waiting for authentication: %w", err) + case tokenRes = <-tokenResChan: + } + + claims, err := oauth.GetClaims(tokenRes.AccessToken) + if err != nil { + return nil, fmt.Errorf("failed to parse token claims: %w", err) + } + + err = m.storeTokensInStore(tokenRes, claims.Domain.Username) + if err != nil { + return nil, fmt.Errorf("failed to store tokens: %w", err) + } + + pat, err := m.api.GetAutoPAT(ctx, m.audience, tokenRes) + if err != nil { + return nil, err + } + + return &types.AuthConfig{ + Username: claims.Domain.Username, + Password: pat, + ServerAddress: registry.IndexServer, + }, nil +} + +// Logout fetches the refresh token from the store and revokes it +// with the configured oauth tenant. The stored access and refresh +// tokens are then erased from the store. +// If the refresh token is not found in the store, an error is not +// returned. +func (m *OAuthManager) Logout(ctx context.Context) error { + refreshConfig, err := m.store.Get(refreshTokenKey) + if err != nil { + return err + } + if refreshConfig.Password == "" { + return nil + } + parts := strings.Split(refreshConfig.Password, "..") + if len(parts) != 2 { + // the token wasn't stored by the CLI, so don't revoke it + // or erase it from the store/error + return nil + } + // erase the token from the store first, that way + // if the revoke fails, the user can try to logout again + if err := m.eraseTokensFromStore(); err != nil { + return fmt.Errorf("failed to erase tokens: %w", err) + } + if err := m.api.RevokeToken(ctx, parts[0]); err != nil { + return fmt.Errorf("credentials erased successfully, but there was a failure to revoke the OAuth refresh token with the tenant: %w", err) + } + return nil +} + +const ( + accessTokenKey = registry.IndexServer + "access-token" + refreshTokenKey = registry.IndexServer + "refresh-token" +) + +func (m *OAuthManager) storeTokensInStore(tokens api.TokenResponse, username string) error { + return errors.Join( + m.store.Store(types.AuthConfig{ + Username: username, + Password: tokens.AccessToken, + ServerAddress: accessTokenKey, + }), + m.store.Store(types.AuthConfig{ + Username: username, + Password: tokens.RefreshToken + ".." + m.clientID, + ServerAddress: refreshTokenKey, + }), + ) +} + +func (m *OAuthManager) eraseTokensFromStore() error { + return errors.Join( + m.store.Erase(accessTokenKey), + m.store.Erase(refreshTokenKey), + ) +} diff --git a/cli/internal/oauth/manager/manager_test.go b/cli/internal/oauth/manager/manager_test.go new file mode 100644 index 0000000000..39a9b86c2f --- /dev/null +++ b/cli/internal/oauth/manager/manager_test.go @@ -0,0 +1,363 @@ +package manager + +import ( + "context" + "errors" + "os" + "testing" + "time" + + "github.com/docker/cli/cli/config/credentials" + "github.com/docker/cli/cli/config/types" + "github.com/docker/cli/cli/internal/oauth/api" + "gotest.tools/v3/assert" +) + +const ( + //nolint:lll + validToken = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6InhYa3BCdDNyV3MyRy11YjlscEpncSJ9.eyJodHRwczovL2h1Yi5kb2NrZXIuY29tIjp7ImVtYWlsIjoiYm9ya0Bkb2NrZXIuY29tIiwic2Vzc2lvbl9pZCI6ImEtc2Vzc2lvbi1pZCIsInNvdXJjZSI6InNhbWxwIiwidXNlcm5hbWUiOiJib3JrISIsInV1aWQiOiIwMTIzLTQ1Njc4OSJ9LCJpc3MiOiJodHRwczovL2xvZ2luLmRvY2tlci5jb20vIiwic3ViIjoic2FtbHB8c2FtbHAtZG9ja2VyfGJvcmtAZG9ja2VyLmNvbSIsImF1ZCI6WyJodHRwczovL2F1ZGllbmNlLmNvbSJdLCJpYXQiOjE3MTk1MDI5MzksImV4cCI6MTcxOTUwNjUzOSwic2NvcGUiOiJvcGVuaWQgb2ZmbGluZV9hY2Nlc3MifQ.VUSp-9_SOvMPWJPRrSh7p4kSPoye4DA3kyd2I0TW0QtxYSRq7xCzNj0NC_ywlPlKBFBeXKm4mh93d1vBSh79I9Heq5tj0Fr4KH77U5xJRMEpjHqoT5jxMEU1hYXX92xctnagBMXxDvzUfu3Yf0tvYSA0RRoGbGTHfdYYRwOrGbwQ75Qg1dyIxUkwsG053eYX2XkmLGxymEMgIq_gWksgAamOc40_0OCdGr-MmDeD2HyGUa309aGltzQUw7Z0zG1AKSXy3WwfMHdWNFioTAvQphwEyY3US8ybSJi78upSFTjwUcryMeHUwQ3uV9PxwPMyPoYxo1izVB-OUJxM8RqEbg" +) + +// parsed token: +// { +// "https://hub.docker.com": { +// "email": "bork@docker.com", +// "session_id": "a-session-id", +// "source": "samlp", +// "username": "bork!", +// "uuid": "0123-456789" +// }, +// "iss": "https://login.docker.com/", +// "sub": "samlp|samlp-docker|bork@docker.com", +// "aud": [ +// "https://audience.com" +// ], +// "iat": 1719502939, +// "exp": 1719506539, +// "scope": "openid offline_access" +// } + +func TestLoginDevice(t *testing.T) { + t.Run("valid token", func(t *testing.T) { + expectedState := api.State{ + DeviceCode: "device-code", + UserCode: "0123-4567", + VerificationURI: "an-url", + ExpiresIn: 300, + } + var receivedAudience string + getDeviceToken := func(audience string) (api.State, error) { + receivedAudience = audience + return expectedState, nil + } + var receivedState api.State + waitForDeviceToken := func(state api.State) (api.TokenResponse, error) { + receivedState = state + return api.TokenResponse{ + AccessToken: validToken, + RefreshToken: "refresh-token", + }, nil + } + var receivedAccessToken, getPatReceivedAudience string + getAutoPat := func(audience string, res api.TokenResponse) (string, error) { + receivedAccessToken = res.AccessToken + getPatReceivedAudience = audience + return "a-pat", nil + } + api := &testAPI{ + getDeviceToken: getDeviceToken, + waitForDeviceToken: waitForDeviceToken, + getAutoPAT: getAutoPat, + } + store := newStore(map[string]types.AuthConfig{}) + manager := OAuthManager{ + store: credentials.NewFileStore(store), + audience: "https://hub.docker.com", + api: api, + openBrowser: func(url string) error { + return nil + }, + } + + authConfig, err := manager.LoginDevice(context.Background(), os.Stderr) + assert.NilError(t, err) + + assert.Equal(t, receivedAudience, "https://hub.docker.com") + assert.Equal(t, receivedState, expectedState) + assert.DeepEqual(t, authConfig, &types.AuthConfig{ + Username: "bork!", + Password: "a-pat", + ServerAddress: "https://index.docker.io/v1/", + }) + assert.Equal(t, receivedAccessToken, validToken) + assert.Equal(t, getPatReceivedAudience, "https://hub.docker.com") + }) + + t.Run("stores in cred store", func(t *testing.T) { + getDeviceToken := func(audience string) (api.State, error) { + return api.State{ + DeviceCode: "device-code", + UserCode: "0123-4567", + }, nil + } + waitForDeviceToken := func(state api.State) (api.TokenResponse, error) { + return api.TokenResponse{ + AccessToken: validToken, + RefreshToken: "refresh-token", + }, nil + } + getAutoPAT := func(audience string, res api.TokenResponse) (string, error) { + return "a-pat", nil + } + a := &testAPI{ + getDeviceToken: getDeviceToken, + waitForDeviceToken: waitForDeviceToken, + getAutoPAT: getAutoPAT, + } + store := newStore(map[string]types.AuthConfig{}) + manager := OAuthManager{ + clientID: "client-id", + store: credentials.NewFileStore(store), + api: a, + openBrowser: func(url string) error { + return nil + }, + } + + authConfig, err := manager.LoginDevice(context.Background(), os.Stderr) + assert.NilError(t, err) + + assert.Equal(t, authConfig.Password, "a-pat") + assert.Equal(t, authConfig.Username, "bork!") + + assert.Equal(t, len(store.configs), 2) + assert.Equal(t, store.configs["https://index.docker.io/v1/access-token"].Password, validToken) + assert.Equal(t, store.configs["https://index.docker.io/v1/refresh-token"].Password, "refresh-token..client-id") + }) + + t.Run("timeout", func(t *testing.T) { + getDeviceToken := func(audience string) (api.State, error) { + return api.State{ + DeviceCode: "device-code", + UserCode: "0123-4567", + VerificationURI: "an-url", + ExpiresIn: 300, + }, nil + } + waitForDeviceToken := func(state api.State) (api.TokenResponse, error) { + return api.TokenResponse{}, api.ErrTimeout + } + a := &testAPI{ + getDeviceToken: getDeviceToken, + waitForDeviceToken: waitForDeviceToken, + } + manager := OAuthManager{ + api: a, + openBrowser: func(url string) error { + return nil + }, + } + + _, err := manager.LoginDevice(context.Background(), os.Stderr) + assert.ErrorContains(t, err, "failed waiting for authentication: timed out waiting for device token") + }) + + t.Run("canceled context", func(t *testing.T) { + getDeviceToken := func(audience string) (api.State, error) { + return api.State{ + DeviceCode: "device-code", + UserCode: "0123-4567", + }, nil + } + waitForDeviceToken := func(state api.State) (api.TokenResponse, error) { + // make sure that the context is cancelled before this returns + time.Sleep(500 * time.Millisecond) + return api.TokenResponse{ + AccessToken: validToken, + RefreshToken: "refresh-token", + }, nil + } + a := &testAPI{ + getDeviceToken: getDeviceToken, + waitForDeviceToken: waitForDeviceToken, + } + manager := OAuthManager{ + api: a, + openBrowser: func(url string) error { + return nil + }, + } + + ctx, cancel := context.WithCancel(context.Background()) + cancel() + _, err := manager.LoginDevice(ctx, os.Stderr) + assert.ErrorContains(t, err, "login canceled") + }) +} + +func TestLogout(t *testing.T) { + t.Run("successfully revokes token", func(t *testing.T) { + var receivedToken string + a := &testAPI{ + revokeToken: func(token string) error { + receivedToken = token + return nil + }, + } + store := newStore(map[string]types.AuthConfig{ + "https://index.docker.io/v1/access-token": { + Password: validToken, + }, + "https://index.docker.io/v1/refresh-token": { + Password: "a-refresh-token..client-id", + }, + }) + manager := OAuthManager{ + store: credentials.NewFileStore(store), + api: a, + } + + err := manager.Logout(context.Background()) + assert.NilError(t, err) + + assert.Equal(t, receivedToken, "a-refresh-token") + assert.Equal(t, len(store.configs), 0) + }) + + t.Run("error revoking token", func(t *testing.T) { + a := &testAPI{ + revokeToken: func(token string) error { + return errors.New("couldn't reach tenant") + }, + } + store := newStore(map[string]types.AuthConfig{ + "https://index.docker.io/v1/access-token": { + Password: validToken, + }, + "https://index.docker.io/v1/refresh-token": { + Password: "a-refresh-token..client-id", + }, + }) + manager := OAuthManager{ + store: credentials.NewFileStore(store), + api: a, + } + + err := manager.Logout(context.Background()) + assert.ErrorContains(t, err, "credentials erased successfully, but there was a failure to revoke the OAuth refresh token with the tenant: couldn't reach tenant") + + assert.Equal(t, len(store.configs), 0) + }) + + t.Run("invalid refresh token", func(t *testing.T) { + var triedRevoke bool + a := &testAPI{ + revokeToken: func(token string) error { + triedRevoke = true + return nil + }, + } + store := newStore(map[string]types.AuthConfig{ + "https://index.docker.io/v1/access-token": { + Password: validToken, + }, + "https://index.docker.io/v1/refresh-token": { + Password: "a-refresh-token-without-client-id", + }, + }) + manager := OAuthManager{ + store: credentials.NewFileStore(store), + api: a, + } + + err := manager.Logout(context.Background()) + assert.NilError(t, err) + + assert.Check(t, !triedRevoke) + }) + + t.Run("no refresh token", func(t *testing.T) { + a := &testAPI{} + var triedRevoke bool + revokeToken := func(token string) error { + triedRevoke = true + return nil + } + a.revokeToken = revokeToken + store := newStore(map[string]types.AuthConfig{}) + manager := OAuthManager{ + store: credentials.NewFileStore(store), + api: a, + } + + err := manager.Logout(context.Background()) + assert.NilError(t, err) + + assert.Check(t, !triedRevoke) + }) +} + +var _ api.OAuthAPI = &testAPI{} + +type testAPI struct { + getDeviceToken func(audience string) (api.State, error) + waitForDeviceToken func(state api.State) (api.TokenResponse, error) + refresh func(token string) (api.TokenResponse, error) + revokeToken func(token string) error + getAutoPAT func(audience string, res api.TokenResponse) (string, error) +} + +func (t *testAPI) GetDeviceCode(_ context.Context, audience string) (api.State, error) { + if t.getDeviceToken != nil { + return t.getDeviceToken(audience) + } + return api.State{}, nil +} + +func (t *testAPI) WaitForDeviceToken(_ context.Context, state api.State) (api.TokenResponse, error) { + if t.waitForDeviceToken != nil { + return t.waitForDeviceToken(state) + } + return api.TokenResponse{}, nil +} + +func (t *testAPI) Refresh(_ context.Context, token string) (api.TokenResponse, error) { + if t.refresh != nil { + return t.refresh(token) + } + return api.TokenResponse{}, nil +} + +func (t *testAPI) RevokeToken(_ context.Context, token string) error { + if t.revokeToken != nil { + return t.revokeToken(token) + } + return nil +} + +func (t *testAPI) GetAutoPAT(_ context.Context, audience string, res api.TokenResponse) (string, error) { + if t.getAutoPAT != nil { + return t.getAutoPAT(audience, res) + } + return "", nil +} + +type fakeStore struct { + configs map[string]types.AuthConfig +} + +func (f *fakeStore) Save() error { + return nil +} + +func (f *fakeStore) GetAuthConfigs() map[string]types.AuthConfig { + return f.configs +} + +func (f *fakeStore) GetFilename() string { + return "/tmp/docker-fakestore" +} + +func newStore(auths map[string]types.AuthConfig) *fakeStore { + return &fakeStore{configs: auths} +} diff --git a/cli/internal/oauth/manager/util.go b/cli/internal/oauth/manager/util.go new file mode 100644 index 0000000000..c5e268d214 --- /dev/null +++ b/cli/internal/oauth/manager/util.go @@ -0,0 +1,28 @@ +package manager + +import ( + "fmt" + "runtime" + "strings" + + "github.com/docker/cli/cli/config/credentials" + "github.com/docker/cli/cli/version" +) + +const ( + audience = "https://hub.docker.com" + tenant = "login.docker.com" + clientID = "L4v0dmlNBpYUjGGab0C2JtgTgXr1Qz4d" +) + +func NewManager(store credentials.Store) *OAuthManager { + cliVersion := strings.ReplaceAll(version.Version, ".", "_") + options := OAuthManagerOptions{ + Store: store, + Audience: audience, + ClientID: clientID, + Tenant: tenant, + DeviceName: fmt.Sprintf("docker-cli:%s:%s-%s", cliVersion, runtime.GOOS, runtime.GOARCH), + } + return New(options) +} diff --git a/vendor.mod b/vendor.mod index 8ce9d10838..9809c107df 100644 --- a/vendor.mod +++ b/vendor.mod @@ -17,7 +17,8 @@ require ( github.com/docker/docker-credential-helpers v0.8.2 github.com/docker/go-connections v0.5.0 github.com/docker/go-units v0.5.0 - github.com/fvbommel/sortorder v1.0.2 + github.com/fvbommel/sortorder v1.1.0 + github.com/go-jose/go-jose/v3 v3.0.3 github.com/go-viper/mapstructure/v2 v2.0.0 github.com/gogo/protobuf v1.3.2 github.com/google/go-cmp v0.6.0 @@ -79,11 +80,13 @@ require ( github.com/moby/sys/symlink v0.2.0 // indirect github.com/moby/sys/user v0.3.0 // indirect github.com/moby/sys/userns v0.1.0 // indirect + github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c github.com/prometheus/client_golang v1.17.0 // indirect github.com/prometheus/client_model v0.5.0 // indirect github.com/prometheus/common v0.44.0 // indirect github.com/prometheus/procfs v0.15.1 // indirect github.com/rivo/uniseg v0.2.0 // indirect + github.com/stretchr/testify v1.9.0 // indirect github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect go.etcd.io/etcd/raft/v3 v3.5.6 // indirect diff --git a/vendor.sum b/vendor.sum index a4fd026c93..4a27715cbe 100644 --- a/vendor.sum +++ b/vendor.sum @@ -80,9 +80,11 @@ github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg= github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U= github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= -github.com/fvbommel/sortorder v1.0.2 h1:mV4o8B2hKboCdkJm+a7uX/SIpZob4JzUpc5GGnM45eo= -github.com/fvbommel/sortorder v1.0.2/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0= +github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQmYw= +github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0= github.com/getsentry/raven-go v0.2.0/go.mod h1:KungGk8q33+aIAZUIVWZDr2OfAEBsO49PX4NzFV5kcQ= +github.com/go-jose/go-jose/v3 v3.0.3 h1:fFKWeig/irsp7XD2zBxvnmA/XaRWp5V3CBsZXJF7G7k= +github.com/go-jose/go-jose/v3 v3.0.3/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ= github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as= github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE= github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk= @@ -118,6 +120,7 @@ github.com/google/certificate-transparency-go v1.1.4 h1:hCyXHDbtqlr/lMXU0D4Wgbal github.com/google/certificate-transparency-go v1.1.4/go.mod h1:D6lvbfwckhNrbM9WVl1EVeMOyzC19mpIjMOI4nxBHtQ= github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= @@ -210,6 +213,8 @@ github.com/opencontainers/image-spec v1.1.0 h1:8SG7/vwALn54lVB/0yZ/MMwhFrPYtpEHQ github.com/opencontainers/image-spec v1.1.0/go.mod h1:W4s4sFTMaBeK1BQLXbG4AdM2szdn85PY75RI83NrTrM= github.com/opentracing/opentracing-go v1.1.0 h1:pWlfV3Bxv7k65HYwkikxat0+s3pV4bsqf19k25Ur8rU= github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o= +github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c h1:+mdjkGKdHQG3305AYmdv1U2eRNDiU2ErMBj1gwrq8eQ= +github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c/go.mod h1:7rwL4CYBLnjLxUqIJNnCWiEdr3bn6IUYi15bNlnbCCU= github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= @@ -268,8 +273,8 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA= github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= -github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk= -github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo= +github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg= +github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= github.com/theupdateframework/notary v0.7.1-0.20210315103452-bf96a202a09a h1:tlJ7tGUHvcvL1v3yR6NcCc9nOqh2L+CG6HWrYQtwzQ0= github.com/theupdateframework/notary v0.7.1-0.20210315103452-bf96a202a09a/go.mod h1:Y94A6rPp2OwNfP/7vmf8O2xx2IykP8pPXQ1DLouGnEw= github.com/tonistiigi/go-rosetta v0.0.0-20200727161949-f79598599c5d h1:wvQZpqy8p0D/FUia6ipKDhXrzPzBVJE4PZyPc5+5Ay0= @@ -285,6 +290,7 @@ github.com/xeipuuv/gojsonschema v1.2.0 h1:LhYJRs+L4fBtjZUfuSZIKGeVu0QRy8e5Xi7D17 github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y= github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= +github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= github.com/zmap/zcrypto v0.0.0-20210511125630-18f1e0152cfc h1:zkGwegkOW709y0oiAraH/3D8njopUR/pARHv4tZZ6pw= github.com/zmap/zcrypto v0.0.0-20210511125630-18f1e0152cfc/go.mod h1:FM4U1E3NzlNMRnSUTU3P1UdukWhYGifqEsjk9fn7BCk= github.com/zmap/zlint/v3 v3.1.0 h1:WjVytZo79m/L1+/Mlphl09WBob6YTGljN5IGWZFpAv0= @@ -326,10 +332,14 @@ golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8U golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I= +golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= +golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU= golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI= golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8= golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= +golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= +golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= @@ -337,6 +347,10 @@ golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLL golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= +golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= +golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= +golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs= +golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg= golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac= golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM= golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= @@ -345,6 +359,8 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M= golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= @@ -356,17 +372,34 @@ golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI= golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw= +golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= +golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= +golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k= +golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo= +golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk= golang.org/x/term v0.20.0 h1:VnkxpohqXaOBYJtBmEppKUG6mXpi+4O6purfc2+sMhw= golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= +golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= +golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= +golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk= golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4= @@ -376,6 +409,8 @@ golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGm golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= +golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= +golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= diff --git a/vendor/github.com/fvbommel/sortorder/README.md b/vendor/github.com/fvbommel/sortorder/README.md index 7ebcab1d16..06779c8852 100644 --- a/vendor/github.com/fvbommel/sortorder/README.md +++ b/vendor/github.com/fvbommel/sortorder/README.md @@ -3,3 +3,7 @@ import "github.com/fvbommel/sortorder" Sort orders and comparison functions. + +Case-insensitive sort orders are in the `casefolded` sub-package +because it pulls in the Unicode tables in the standard library, +which can add significantly to the size of binaries. diff --git a/vendor/github.com/fvbommel/sortorder/natsort.go b/vendor/github.com/fvbommel/sortorder/natsort.go index 66a52c7125..e4f15110b8 100644 --- a/vendor/github.com/fvbommel/sortorder/natsort.go +++ b/vendor/github.com/fvbommel/sortorder/natsort.go @@ -4,7 +4,7 @@ package sortorder // means that e.g. "abc2" < "abc12". // // Non-digit sequences and numbers are compared separately. The former are -// compared bytewise, while the latter are compared numerically (except that +// compared bytewise, while digits are compared numerically (except that // the number of leading zeros is used as a tie-breaker, so e.g. "2" < "02") // // Limitation: only ASCII digits (0-9) are considered. @@ -14,13 +14,13 @@ func (n Natural) Len() int { return len(n) } func (n Natural) Swap(i, j int) { n[i], n[j] = n[j], n[i] } func (n Natural) Less(i, j int) bool { return NaturalLess(n[i], n[j]) } -func isdigit(b byte) bool { return '0' <= b && b <= '9' } +func isDigit(b byte) bool { return '0' <= b && b <= '9' } // NaturalLess compares two strings using natural ordering. This means that e.g. // "abc2" < "abc12". // // Non-digit sequences and numbers are compared separately. The former are -// compared bytewise, while the latter are compared numerically (except that +// compared bytewise, while digits are compared numerically (except that // the number of leading zeros is used as a tie-breaker, so e.g. "2" < "02") // // Limitation: only ASCII digits (0-9) are considered. @@ -28,7 +28,7 @@ func NaturalLess(str1, str2 string) bool { idx1, idx2 := 0, 0 for idx1 < len(str1) && idx2 < len(str2) { c1, c2 := str1[idx1], str2[idx2] - dig1, dig2 := isdigit(c1), isdigit(c2) + dig1, dig2 := isDigit(c1), isDigit(c2) switch { case dig1 != dig2: // Digits before other characters. return dig1 // True if LHS is a digit, false if the RHS is one. @@ -48,16 +48,16 @@ func NaturalLess(str1, str2 string) bool { } // Eat all digits. nonZero1, nonZero2 := idx1, idx2 - for ; idx1 < len(str1) && isdigit(str1[idx1]); idx1++ { + for ; idx1 < len(str1) && isDigit(str1[idx1]); idx1++ { } - for ; idx2 < len(str2) && isdigit(str2[idx2]); idx2++ { + for ; idx2 < len(str2) && isDigit(str2[idx2]); idx2++ { } // If lengths of numbers with non-zero prefix differ, the shorter // one is less. if len1, len2 := idx1-nonZero1, idx2-nonZero2; len1 != len2 { return len1 < len2 } - // If they're equal, string comparison is correct. + // If they're equally long, string comparison is correct. if nr1, nr2 := str1[nonZero1:idx1], str2[nonZero2:idx2]; nr1 != nr2 { return nr1 < nr2 } diff --git a/vendor/github.com/go-jose/go-jose/v3/.gitignore b/vendor/github.com/go-jose/go-jose/v3/.gitignore new file mode 100644 index 0000000000..eb29ebaefd --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/.gitignore @@ -0,0 +1,2 @@ +jose-util/jose-util +jose-util.t.err \ No newline at end of file diff --git a/vendor/github.com/go-jose/go-jose/v3/.golangci.yml b/vendor/github.com/go-jose/go-jose/v3/.golangci.yml new file mode 100644 index 0000000000..2a577a8f95 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/.golangci.yml @@ -0,0 +1,53 @@ +# https://github.com/golangci/golangci-lint + +run: + skip-files: + - doc_test.go + modules-download-mode: readonly + +linters: + enable-all: true + disable: + - gochecknoglobals + - goconst + - lll + - maligned + - nakedret + - scopelint + - unparam + - funlen # added in 1.18 (requires go-jose changes before it can be enabled) + +linters-settings: + gocyclo: + min-complexity: 35 + +issues: + exclude-rules: + - text: "don't use ALL_CAPS in Go names" + linters: + - golint + - text: "hardcoded credentials" + linters: + - gosec + - text: "weak cryptographic primitive" + linters: + - gosec + - path: json/ + linters: + - dupl + - errcheck + - gocritic + - gocyclo + - golint + - govet + - ineffassign + - staticcheck + - structcheck + - stylecheck + - unused + - path: _test\.go + linters: + - scopelint + - path: jwk.go + linters: + - gocyclo diff --git a/vendor/github.com/go-jose/go-jose/v3/.travis.yml b/vendor/github.com/go-jose/go-jose/v3/.travis.yml new file mode 100644 index 0000000000..48de631b00 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/.travis.yml @@ -0,0 +1,33 @@ +language: go + +matrix: + fast_finish: true + allow_failures: + - go: tip + +go: + - "1.13.x" + - "1.14.x" + - tip + +before_script: + - export PATH=$HOME/.local/bin:$PATH + +before_install: + - go get -u github.com/mattn/goveralls github.com/wadey/gocovmerge + - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.18.0 + - pip install cram --user + +script: + - go test -v -covermode=count -coverprofile=profile.cov . + - go test -v -covermode=count -coverprofile=cryptosigner/profile.cov ./cryptosigner + - go test -v -covermode=count -coverprofile=cipher/profile.cov ./cipher + - go test -v -covermode=count -coverprofile=jwt/profile.cov ./jwt + - go test -v ./json # no coverage for forked encoding/json package + - golangci-lint run + - cd jose-util && go build && PATH=$PWD:$PATH cram -v jose-util.t # cram tests jose-util + - cd .. + +after_success: + - gocovmerge *.cov */*.cov > merged.coverprofile + - goveralls -coverprofile merged.coverprofile -service=travis-ci diff --git a/vendor/github.com/go-jose/go-jose/v3/CHANGELOG.md b/vendor/github.com/go-jose/go-jose/v3/CHANGELOG.md new file mode 100644 index 0000000000..ce2a54ebf2 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/CHANGELOG.md @@ -0,0 +1,78 @@ +# v4.0.1 + +## Fixed + + - An attacker could send a JWE containing compressed data that used large + amounts of memory and CPU when decompressed by `Decrypt` or `DecryptMulti`. + Those functions now return an error if the decompressed data would exceed + 250kB or 10x the compressed size (whichever is larger). Thanks to + Enze Wang@Alioth and Jianjun Chen@Zhongguancun Lab (@zer0yu and @chenjj) + for reporting. + +# v4.0.0 + +This release makes some breaking changes in order to more thoroughly +address the vulnerabilities discussed in [Three New Attacks Against JSON Web +Tokens][1], "Sign/encrypt confusion", "Billion hash attack", and "Polyglot +token". + +## Changed + + - Limit JWT encryption types (exclude password or public key types) (#78) + - Enforce minimum length for HMAC keys (#85) + - jwt: match any audience in a list, rather than requiring all audiences (#81) + - jwt: accept only Compact Serialization (#75) + - jws: Add expected algorithms for signatures (#74) + - Require specifying expected algorithms for ParseEncrypted, + ParseSigned, ParseDetached, jwt.ParseEncrypted, jwt.ParseSigned, + jwt.ParseSignedAndEncrypted (#69, #74) + - Usually there is a small, known set of appropriate algorithms for a program + to use and it's a mistake to allow unexpected algorithms. For instance the + "billion hash attack" relies in part on programs accepting the PBES2 + encryption algorithm and doing the necessary work even if they weren't + specifically configured to allow PBES2. + - Revert "Strip padding off base64 strings" (#82) + - The specs require base64url encoding without padding. + - Minimum supported Go version is now 1.21 + +## Added + + - ParseSignedCompact, ParseSignedJSON, ParseEncryptedCompact, ParseEncryptedJSON. + - These allow parsing a specific serialization, as opposed to ParseSigned and + ParseEncrypted, which try to automatically detect which serialization was + provided. It's common to require a specific serialization for a specific + protocol - for instance JWT requires Compact serialization. + +[1]: https://i.blackhat.com/BH-US-23/Presentations/US-23-Tervoort-Three-New-Attacks-Against-JSON-Web-Tokens.pdf + +# v3.0.3 + +## Fixed + + - Limit decompression output size to prevent a DoS. Backport from v4.0.1. + +# v3.0.2 + +## Fixed + + - DecryptMulti: handle decompression error (#19) + +## Changed + + - jwe/CompactSerialize: improve performance (#67) + - Increase the default number of PBKDF2 iterations to 600k (#48) + - Return the proper algorithm for ECDSA keys (#45) + +## Added + + - Add Thumbprint support for opaque signers (#38) + +# v3.0.1 + +## Fixed + + - Security issue: an attacker specifying a large "p2c" value can cause + JSONWebEncryption.Decrypt and JSONWebEncryption.DecryptMulti to consume large + amounts of CPU, causing a DoS. Thanks to Matt Schwager (@mschwager) for the + disclosure and to Tom Tervoort for originally publishing the category of attack. + https://i.blackhat.com/BH-US-23/Presentations/US-23-Tervoort-Three-New-Attacks-Against-JSON-Web-Tokens.pdf diff --git a/vendor/github.com/go-jose/go-jose/v3/CONTRIBUTING.md b/vendor/github.com/go-jose/go-jose/v3/CONTRIBUTING.md new file mode 100644 index 0000000000..b63e1f8fee --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/CONTRIBUTING.md @@ -0,0 +1,15 @@ +# Contributing + +If you would like to contribute code to go-jose you can do so through GitHub by +forking the repository and sending a pull request. + +When submitting code, please make every effort to follow existing conventions +and style in order to keep the code as readable as possible. Please also make +sure all tests pass by running `go test`, and format your code with `go fmt`. +We also recommend using `golint` and `errcheck`. + +Before your code can be accepted into the project you must also sign the +Individual Contributor License Agreement. We use [cla-assistant.io][1] and you +will be prompted to sign once a pull request is opened. + +[1]: https://cla-assistant.io/ diff --git a/vendor/github.com/go-jose/go-jose/v3/LICENSE b/vendor/github.com/go-jose/go-jose/v3/LICENSE new file mode 100644 index 0000000000..d645695673 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + 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. diff --git a/vendor/github.com/go-jose/go-jose/v3/README.md b/vendor/github.com/go-jose/go-jose/v3/README.md new file mode 100644 index 0000000000..282cd9e135 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/README.md @@ -0,0 +1,108 @@ +# Go JOSE + +### Versions + +[Version 4](https://github.com/go-jose/go-jose) +([branch](https://github.com/go-jose/go-jose/), +[doc](https://pkg.go.dev/github.com/go-jose/go-jose/v4), [releases](https://github.com/go-jose/go-jose/releases)) is the current stable version: + + import "github.com/go-jose/go-jose/v4" + +The old [square/go-jose](https://github.com/square/go-jose) repo contains the prior v1 and v2 versions, which +are deprecated. + +### Summary + +Package jose aims to provide an implementation of the Javascript Object Signing +and Encryption set of standards. This includes support for JSON Web Encryption, +JSON Web Signature, and JSON Web Token standards. + +**Disclaimer**: This library contains encryption software that is subject to +the U.S. Export Administration Regulations. You may not export, re-export, +transfer or download this code or any part of it in violation of any United +States law, directive or regulation. In particular this software may not be +exported or re-exported in any form or on any media to Iran, North Sudan, +Syria, Cuba, or North Korea, or to denied persons or entities mentioned on any +US maintained blocked list. + +## Overview + +The implementation follows the +[JSON Web Encryption](https://dx.doi.org/10.17487/RFC7516) (RFC 7516), +[JSON Web Signature](https://dx.doi.org/10.17487/RFC7515) (RFC 7515), and +[JSON Web Token](https://dx.doi.org/10.17487/RFC7519) (RFC 7519) specifications. +Tables of supported algorithms are shown below. The library supports both +the compact and JWS/JWE JSON Serialization formats, and has optional support for +multiple recipients. It also comes with a small command-line utility +([`jose-util`](https://pkg.go.dev/github.com/go-jose/go-jose/jose-util)) +for dealing with JOSE messages in a shell. + +**Note**: We use a forked version of the `encoding/json` package from the Go +standard library which uses case-sensitive matching for member names (instead +of [case-insensitive matching](https://www.ietf.org/mail-archive/web/json/current/msg03763.html)). +This is to avoid differences in interpretation of messages between go-jose and +libraries in other languages. + +### Supported algorithms + +See below for a table of supported algorithms. Algorithm identifiers match +the names in the [JSON Web Algorithms](https://dx.doi.org/10.17487/RFC7518) +standard where possible. The Godoc reference has a list of constants. + + Key encryption | Algorithm identifier(s) + :------------------------- | :------------------------------ + RSA-PKCS#1v1.5 | RSA1_5 + RSA-OAEP | RSA-OAEP, RSA-OAEP-256 + AES key wrap | A128KW, A192KW, A256KW + AES-GCM key wrap | A128GCMKW, A192GCMKW, A256GCMKW + ECDH-ES + AES key wrap | ECDH-ES+A128KW, ECDH-ES+A192KW, ECDH-ES+A256KW + ECDH-ES (direct) | ECDH-ES1 + Direct encryption | dir1 + +1. Not supported in multi-recipient mode + + Signing / MAC | Algorithm identifier(s) + :------------------------- | :------------------------------ + RSASSA-PKCS#1v1.5 | RS256, RS384, RS512 + RSASSA-PSS | PS256, PS384, PS512 + HMAC | HS256, HS384, HS512 + ECDSA | ES256, ES384, ES512 + Ed25519 | EdDSA2 + +2. Only available in version 2 of the package + + Content encryption | Algorithm identifier(s) + :------------------------- | :------------------------------ + AES-CBC+HMAC | A128CBC-HS256, A192CBC-HS384, A256CBC-HS512 + AES-GCM | A128GCM, A192GCM, A256GCM + + Compression | Algorithm identifiers(s) + :------------------------- | ------------------------------- + DEFLATE (RFC 1951) | DEF + +### Supported key types + +See below for a table of supported key types. These are understood by the +library, and can be passed to corresponding functions such as `NewEncrypter` or +`NewSigner`. Each of these keys can also be wrapped in a JWK if desired, which +allows attaching a key id. + + Algorithm(s) | Corresponding types + :------------------------- | ------------------------------- + RSA | *[rsa.PublicKey](https://pkg.go.dev/crypto/rsa/#PublicKey), *[rsa.PrivateKey](https://pkg.go.dev/crypto/rsa/#PrivateKey) + ECDH, ECDSA | *[ecdsa.PublicKey](https://pkg.go.dev/crypto/ecdsa/#PublicKey), *[ecdsa.PrivateKey](https://pkg.go.dev/crypto/ecdsa/#PrivateKey) + EdDSA1 | [ed25519.PublicKey](https://pkg.go.dev/crypto/ed25519#PublicKey), [ed25519.PrivateKey](https://pkg.go.dev/crypto/ed25519#PrivateKey) + AES, HMAC | []byte + +1. Only available in version 2 or later of the package + +## Examples + +[![godoc](https://pkg.go.dev/badge/github.com/go-jose/go-jose/v3.svg)](https://pkg.go.dev/github.com/go-jose/go-jose/v3) +[![godoc](https://pkg.go.dev/badge/github.com/go-jose/go-jose/v3/jwt.svg)](https://pkg.go.dev/github.com/go-jose/go-jose/v3/jwt) + +Examples can be found in the Godoc +reference for this package. The +[`jose-util`](https://github.com/go-jose/go-jose/tree/v3/jose-util) +subdirectory also contains a small command-line utility which might be useful +as an example as well. diff --git a/vendor/github.com/go-jose/go-jose/v3/SECURITY.md b/vendor/github.com/go-jose/go-jose/v3/SECURITY.md new file mode 100644 index 0000000000..2f18a75a82 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/SECURITY.md @@ -0,0 +1,13 @@ +# Security Policy +This document explains how to contact the Let's Encrypt security team to report security vulnerabilities. + +## Supported Versions +| Version | Supported | +| ------- | ----------| +| >= v3 | ✓ | +| v2 | ✗ | +| v1 | ✗ | + +## Reporting a vulnerability + +Please see [https://letsencrypt.org/contact/#security](https://letsencrypt.org/contact/#security) for the email address to report a vulnerability. Ensure that the subject line for your report contains the word `vulnerability` and is descriptive. Your email should be acknowledged within 24 hours. If you do not receive a response within 24 hours, please follow-up again with another email. diff --git a/vendor/github.com/go-jose/go-jose/v3/asymmetric.go b/vendor/github.com/go-jose/go-jose/v3/asymmetric.go new file mode 100644 index 0000000000..d4d4961b24 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/asymmetric.go @@ -0,0 +1,595 @@ +/*- + * Copyright 2014 Square Inc. + * + * 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 jose + +import ( + "crypto" + "crypto/aes" + "crypto/ecdsa" + "crypto/ed25519" + "crypto/rand" + "crypto/rsa" + "crypto/sha1" + "crypto/sha256" + "errors" + "fmt" + "math/big" + + josecipher "github.com/go-jose/go-jose/v3/cipher" + "github.com/go-jose/go-jose/v3/json" +) + +// A generic RSA-based encrypter/verifier +type rsaEncrypterVerifier struct { + publicKey *rsa.PublicKey +} + +// A generic RSA-based decrypter/signer +type rsaDecrypterSigner struct { + privateKey *rsa.PrivateKey +} + +// A generic EC-based encrypter/verifier +type ecEncrypterVerifier struct { + publicKey *ecdsa.PublicKey +} + +type edEncrypterVerifier struct { + publicKey ed25519.PublicKey +} + +// A key generator for ECDH-ES +type ecKeyGenerator struct { + size int + algID string + publicKey *ecdsa.PublicKey +} + +// A generic EC-based decrypter/signer +type ecDecrypterSigner struct { + privateKey *ecdsa.PrivateKey +} + +type edDecrypterSigner struct { + privateKey ed25519.PrivateKey +} + +// newRSARecipient creates recipientKeyInfo based on the given key. +func newRSARecipient(keyAlg KeyAlgorithm, publicKey *rsa.PublicKey) (recipientKeyInfo, error) { + // Verify that key management algorithm is supported by this encrypter + switch keyAlg { + case RSA1_5, RSA_OAEP, RSA_OAEP_256: + default: + return recipientKeyInfo{}, ErrUnsupportedAlgorithm + } + + if publicKey == nil { + return recipientKeyInfo{}, errors.New("invalid public key") + } + + return recipientKeyInfo{ + keyAlg: keyAlg, + keyEncrypter: &rsaEncrypterVerifier{ + publicKey: publicKey, + }, + }, nil +} + +// newRSASigner creates a recipientSigInfo based on the given key. +func newRSASigner(sigAlg SignatureAlgorithm, privateKey *rsa.PrivateKey) (recipientSigInfo, error) { + // Verify that key management algorithm is supported by this encrypter + switch sigAlg { + case RS256, RS384, RS512, PS256, PS384, PS512: + default: + return recipientSigInfo{}, ErrUnsupportedAlgorithm + } + + if privateKey == nil { + return recipientSigInfo{}, errors.New("invalid private key") + } + + return recipientSigInfo{ + sigAlg: sigAlg, + publicKey: staticPublicKey(&JSONWebKey{ + Key: privateKey.Public(), + }), + signer: &rsaDecrypterSigner{ + privateKey: privateKey, + }, + }, nil +} + +func newEd25519Signer(sigAlg SignatureAlgorithm, privateKey ed25519.PrivateKey) (recipientSigInfo, error) { + if sigAlg != EdDSA { + return recipientSigInfo{}, ErrUnsupportedAlgorithm + } + + if privateKey == nil { + return recipientSigInfo{}, errors.New("invalid private key") + } + return recipientSigInfo{ + sigAlg: sigAlg, + publicKey: staticPublicKey(&JSONWebKey{ + Key: privateKey.Public(), + }), + signer: &edDecrypterSigner{ + privateKey: privateKey, + }, + }, nil +} + +// newECDHRecipient creates recipientKeyInfo based on the given key. +func newECDHRecipient(keyAlg KeyAlgorithm, publicKey *ecdsa.PublicKey) (recipientKeyInfo, error) { + // Verify that key management algorithm is supported by this encrypter + switch keyAlg { + case ECDH_ES, ECDH_ES_A128KW, ECDH_ES_A192KW, ECDH_ES_A256KW: + default: + return recipientKeyInfo{}, ErrUnsupportedAlgorithm + } + + if publicKey == nil || !publicKey.Curve.IsOnCurve(publicKey.X, publicKey.Y) { + return recipientKeyInfo{}, errors.New("invalid public key") + } + + return recipientKeyInfo{ + keyAlg: keyAlg, + keyEncrypter: &ecEncrypterVerifier{ + publicKey: publicKey, + }, + }, nil +} + +// newECDSASigner creates a recipientSigInfo based on the given key. +func newECDSASigner(sigAlg SignatureAlgorithm, privateKey *ecdsa.PrivateKey) (recipientSigInfo, error) { + // Verify that key management algorithm is supported by this encrypter + switch sigAlg { + case ES256, ES384, ES512: + default: + return recipientSigInfo{}, ErrUnsupportedAlgorithm + } + + if privateKey == nil { + return recipientSigInfo{}, errors.New("invalid private key") + } + + return recipientSigInfo{ + sigAlg: sigAlg, + publicKey: staticPublicKey(&JSONWebKey{ + Key: privateKey.Public(), + }), + signer: &ecDecrypterSigner{ + privateKey: privateKey, + }, + }, nil +} + +// Encrypt the given payload and update the object. +func (ctx rsaEncrypterVerifier) encryptKey(cek []byte, alg KeyAlgorithm) (recipientInfo, error) { + encryptedKey, err := ctx.encrypt(cek, alg) + if err != nil { + return recipientInfo{}, err + } + + return recipientInfo{ + encryptedKey: encryptedKey, + header: &rawHeader{}, + }, nil +} + +// Encrypt the given payload. Based on the key encryption algorithm, +// this will either use RSA-PKCS1v1.5 or RSA-OAEP (with SHA-1 or SHA-256). +func (ctx rsaEncrypterVerifier) encrypt(cek []byte, alg KeyAlgorithm) ([]byte, error) { + switch alg { + case RSA1_5: + return rsa.EncryptPKCS1v15(RandReader, ctx.publicKey, cek) + case RSA_OAEP: + return rsa.EncryptOAEP(sha1.New(), RandReader, ctx.publicKey, cek, []byte{}) + case RSA_OAEP_256: + return rsa.EncryptOAEP(sha256.New(), RandReader, ctx.publicKey, cek, []byte{}) + } + + return nil, ErrUnsupportedAlgorithm +} + +// Decrypt the given payload and return the content encryption key. +func (ctx rsaDecrypterSigner) decryptKey(headers rawHeader, recipient *recipientInfo, generator keyGenerator) ([]byte, error) { + return ctx.decrypt(recipient.encryptedKey, headers.getAlgorithm(), generator) +} + +// Decrypt the given payload. Based on the key encryption algorithm, +// this will either use RSA-PKCS1v1.5 or RSA-OAEP (with SHA-1 or SHA-256). +func (ctx rsaDecrypterSigner) decrypt(jek []byte, alg KeyAlgorithm, generator keyGenerator) ([]byte, error) { + // Note: The random reader on decrypt operations is only used for blinding, + // so stubbing is meanlingless (hence the direct use of rand.Reader). + switch alg { + case RSA1_5: + defer func() { + // DecryptPKCS1v15SessionKey sometimes panics on an invalid payload + // because of an index out of bounds error, which we want to ignore. + // This has been fixed in Go 1.3.1 (released 2014/08/13), the recover() + // only exists for preventing crashes with unpatched versions. + // See: https://groups.google.com/forum/#!topic/golang-dev/7ihX6Y6kx9k + // See: https://code.google.com/p/go/source/detail?r=58ee390ff31602edb66af41ed10901ec95904d33 + _ = recover() + }() + + // Perform some input validation. + keyBytes := ctx.privateKey.PublicKey.N.BitLen() / 8 + if keyBytes != len(jek) { + // Input size is incorrect, the encrypted payload should always match + // the size of the public modulus (e.g. using a 2048 bit key will + // produce 256 bytes of output). Reject this since it's invalid input. + return nil, ErrCryptoFailure + } + + cek, _, err := generator.genKey() + if err != nil { + return nil, ErrCryptoFailure + } + + // When decrypting an RSA-PKCS1v1.5 payload, we must take precautions to + // prevent chosen-ciphertext attacks as described in RFC 3218, "Preventing + // the Million Message Attack on Cryptographic Message Syntax". We are + // therefore deliberately ignoring errors here. + _ = rsa.DecryptPKCS1v15SessionKey(rand.Reader, ctx.privateKey, jek, cek) + + return cek, nil + case RSA_OAEP: + // Use rand.Reader for RSA blinding + return rsa.DecryptOAEP(sha1.New(), rand.Reader, ctx.privateKey, jek, []byte{}) + case RSA_OAEP_256: + // Use rand.Reader for RSA blinding + return rsa.DecryptOAEP(sha256.New(), rand.Reader, ctx.privateKey, jek, []byte{}) + } + + return nil, ErrUnsupportedAlgorithm +} + +// Sign the given payload +func (ctx rsaDecrypterSigner) signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error) { + var hash crypto.Hash + + switch alg { + case RS256, PS256: + hash = crypto.SHA256 + case RS384, PS384: + hash = crypto.SHA384 + case RS512, PS512: + hash = crypto.SHA512 + default: + return Signature{}, ErrUnsupportedAlgorithm + } + + hasher := hash.New() + + // According to documentation, Write() on hash never fails + _, _ = hasher.Write(payload) + hashed := hasher.Sum(nil) + + var out []byte + var err error + + switch alg { + case RS256, RS384, RS512: + // TODO(https://github.com/go-jose/go-jose/issues/40): As of go1.20, the + // random parameter is legacy and ignored, and it can be nil. + // https://cs.opensource.google/go/go/+/refs/tags/go1.20:src/crypto/rsa/pkcs1v15.go;l=263;bpv=0;bpt=1 + out, err = rsa.SignPKCS1v15(RandReader, ctx.privateKey, hash, hashed) + case PS256, PS384, PS512: + out, err = rsa.SignPSS(RandReader, ctx.privateKey, hash, hashed, &rsa.PSSOptions{ + SaltLength: rsa.PSSSaltLengthEqualsHash, + }) + } + + if err != nil { + return Signature{}, err + } + + return Signature{ + Signature: out, + protected: &rawHeader{}, + }, nil +} + +// Verify the given payload +func (ctx rsaEncrypterVerifier) verifyPayload(payload []byte, signature []byte, alg SignatureAlgorithm) error { + var hash crypto.Hash + + switch alg { + case RS256, PS256: + hash = crypto.SHA256 + case RS384, PS384: + hash = crypto.SHA384 + case RS512, PS512: + hash = crypto.SHA512 + default: + return ErrUnsupportedAlgorithm + } + + hasher := hash.New() + + // According to documentation, Write() on hash never fails + _, _ = hasher.Write(payload) + hashed := hasher.Sum(nil) + + switch alg { + case RS256, RS384, RS512: + return rsa.VerifyPKCS1v15(ctx.publicKey, hash, hashed, signature) + case PS256, PS384, PS512: + return rsa.VerifyPSS(ctx.publicKey, hash, hashed, signature, nil) + } + + return ErrUnsupportedAlgorithm +} + +// Encrypt the given payload and update the object. +func (ctx ecEncrypterVerifier) encryptKey(cek []byte, alg KeyAlgorithm) (recipientInfo, error) { + switch alg { + case ECDH_ES: + // ECDH-ES mode doesn't wrap a key, the shared secret is used directly as the key. + return recipientInfo{ + header: &rawHeader{}, + }, nil + case ECDH_ES_A128KW, ECDH_ES_A192KW, ECDH_ES_A256KW: + default: + return recipientInfo{}, ErrUnsupportedAlgorithm + } + + generator := ecKeyGenerator{ + algID: string(alg), + publicKey: ctx.publicKey, + } + + switch alg { + case ECDH_ES_A128KW: + generator.size = 16 + case ECDH_ES_A192KW: + generator.size = 24 + case ECDH_ES_A256KW: + generator.size = 32 + } + + kek, header, err := generator.genKey() + if err != nil { + return recipientInfo{}, err + } + + block, err := aes.NewCipher(kek) + if err != nil { + return recipientInfo{}, err + } + + jek, err := josecipher.KeyWrap(block, cek) + if err != nil { + return recipientInfo{}, err + } + + return recipientInfo{ + encryptedKey: jek, + header: &header, + }, nil +} + +// Get key size for EC key generator +func (ctx ecKeyGenerator) keySize() int { + return ctx.size +} + +// Get a content encryption key for ECDH-ES +func (ctx ecKeyGenerator) genKey() ([]byte, rawHeader, error) { + priv, err := ecdsa.GenerateKey(ctx.publicKey.Curve, RandReader) + if err != nil { + return nil, rawHeader{}, err + } + + out := josecipher.DeriveECDHES(ctx.algID, []byte{}, []byte{}, priv, ctx.publicKey, ctx.size) + + b, err := json.Marshal(&JSONWebKey{ + Key: &priv.PublicKey, + }) + if err != nil { + return nil, nil, err + } + + headers := rawHeader{ + headerEPK: makeRawMessage(b), + } + + return out, headers, nil +} + +// Decrypt the given payload and return the content encryption key. +func (ctx ecDecrypterSigner) decryptKey(headers rawHeader, recipient *recipientInfo, generator keyGenerator) ([]byte, error) { + epk, err := headers.getEPK() + if err != nil { + return nil, errors.New("go-jose/go-jose: invalid epk header") + } + if epk == nil { + return nil, errors.New("go-jose/go-jose: missing epk header") + } + + publicKey, ok := epk.Key.(*ecdsa.PublicKey) + if publicKey == nil || !ok { + return nil, errors.New("go-jose/go-jose: invalid epk header") + } + + if !ctx.privateKey.Curve.IsOnCurve(publicKey.X, publicKey.Y) { + return nil, errors.New("go-jose/go-jose: invalid public key in epk header") + } + + apuData, err := headers.getAPU() + if err != nil { + return nil, errors.New("go-jose/go-jose: invalid apu header") + } + apvData, err := headers.getAPV() + if err != nil { + return nil, errors.New("go-jose/go-jose: invalid apv header") + } + + deriveKey := func(algID string, size int) []byte { + return josecipher.DeriveECDHES(algID, apuData.bytes(), apvData.bytes(), ctx.privateKey, publicKey, size) + } + + var keySize int + + algorithm := headers.getAlgorithm() + switch algorithm { + case ECDH_ES: + // ECDH-ES uses direct key agreement, no key unwrapping necessary. + return deriveKey(string(headers.getEncryption()), generator.keySize()), nil + case ECDH_ES_A128KW: + keySize = 16 + case ECDH_ES_A192KW: + keySize = 24 + case ECDH_ES_A256KW: + keySize = 32 + default: + return nil, ErrUnsupportedAlgorithm + } + + key := deriveKey(string(algorithm), keySize) + block, err := aes.NewCipher(key) + if err != nil { + return nil, err + } + + return josecipher.KeyUnwrap(block, recipient.encryptedKey) +} + +func (ctx edDecrypterSigner) signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error) { + if alg != EdDSA { + return Signature{}, ErrUnsupportedAlgorithm + } + + sig, err := ctx.privateKey.Sign(RandReader, payload, crypto.Hash(0)) + if err != nil { + return Signature{}, err + } + + return Signature{ + Signature: sig, + protected: &rawHeader{}, + }, nil +} + +func (ctx edEncrypterVerifier) verifyPayload(payload []byte, signature []byte, alg SignatureAlgorithm) error { + if alg != EdDSA { + return ErrUnsupportedAlgorithm + } + ok := ed25519.Verify(ctx.publicKey, payload, signature) + if !ok { + return errors.New("go-jose/go-jose: ed25519 signature failed to verify") + } + return nil +} + +// Sign the given payload +func (ctx ecDecrypterSigner) signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error) { + var expectedBitSize int + var hash crypto.Hash + + switch alg { + case ES256: + expectedBitSize = 256 + hash = crypto.SHA256 + case ES384: + expectedBitSize = 384 + hash = crypto.SHA384 + case ES512: + expectedBitSize = 521 + hash = crypto.SHA512 + } + + curveBits := ctx.privateKey.Curve.Params().BitSize + if expectedBitSize != curveBits { + return Signature{}, fmt.Errorf("go-jose/go-jose: expected %d bit key, got %d bits instead", expectedBitSize, curveBits) + } + + hasher := hash.New() + + // According to documentation, Write() on hash never fails + _, _ = hasher.Write(payload) + hashed := hasher.Sum(nil) + + r, s, err := ecdsa.Sign(RandReader, ctx.privateKey, hashed) + if err != nil { + return Signature{}, err + } + + keyBytes := curveBits / 8 + if curveBits%8 > 0 { + keyBytes++ + } + + // We serialize the outputs (r and s) into big-endian byte arrays and pad + // them with zeros on the left to make sure the sizes work out. Both arrays + // must be keyBytes long, and the output must be 2*keyBytes long. + rBytes := r.Bytes() + rBytesPadded := make([]byte, keyBytes) + copy(rBytesPadded[keyBytes-len(rBytes):], rBytes) + + sBytes := s.Bytes() + sBytesPadded := make([]byte, keyBytes) + copy(sBytesPadded[keyBytes-len(sBytes):], sBytes) + + out := append(rBytesPadded, sBytesPadded...) + + return Signature{ + Signature: out, + protected: &rawHeader{}, + }, nil +} + +// Verify the given payload +func (ctx ecEncrypterVerifier) verifyPayload(payload []byte, signature []byte, alg SignatureAlgorithm) error { + var keySize int + var hash crypto.Hash + + switch alg { + case ES256: + keySize = 32 + hash = crypto.SHA256 + case ES384: + keySize = 48 + hash = crypto.SHA384 + case ES512: + keySize = 66 + hash = crypto.SHA512 + default: + return ErrUnsupportedAlgorithm + } + + if len(signature) != 2*keySize { + return fmt.Errorf("go-jose/go-jose: invalid signature size, have %d bytes, wanted %d", len(signature), 2*keySize) + } + + hasher := hash.New() + + // According to documentation, Write() on hash never fails + _, _ = hasher.Write(payload) + hashed := hasher.Sum(nil) + + r := big.NewInt(0).SetBytes(signature[:keySize]) + s := big.NewInt(0).SetBytes(signature[keySize:]) + + match := ecdsa.Verify(ctx.publicKey, hashed, r, s) + if !match { + return errors.New("go-jose/go-jose: ecdsa signature failed to verify") + } + + return nil +} diff --git a/vendor/github.com/go-jose/go-jose/v3/cipher/cbc_hmac.go b/vendor/github.com/go-jose/go-jose/v3/cipher/cbc_hmac.go new file mode 100644 index 0000000000..af029cec0b --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/cipher/cbc_hmac.go @@ -0,0 +1,196 @@ +/*- + * Copyright 2014 Square Inc. + * + * 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 josecipher + +import ( + "bytes" + "crypto/cipher" + "crypto/hmac" + "crypto/sha256" + "crypto/sha512" + "crypto/subtle" + "encoding/binary" + "errors" + "hash" +) + +const ( + nonceBytes = 16 +) + +// NewCBCHMAC instantiates a new AEAD based on CBC+HMAC. +func NewCBCHMAC(key []byte, newBlockCipher func([]byte) (cipher.Block, error)) (cipher.AEAD, error) { + keySize := len(key) / 2 + integrityKey := key[:keySize] + encryptionKey := key[keySize:] + + blockCipher, err := newBlockCipher(encryptionKey) + if err != nil { + return nil, err + } + + var hash func() hash.Hash + switch keySize { + case 16: + hash = sha256.New + case 24: + hash = sha512.New384 + case 32: + hash = sha512.New + } + + return &cbcAEAD{ + hash: hash, + blockCipher: blockCipher, + authtagBytes: keySize, + integrityKey: integrityKey, + }, nil +} + +// An AEAD based on CBC+HMAC +type cbcAEAD struct { + hash func() hash.Hash + authtagBytes int + integrityKey []byte + blockCipher cipher.Block +} + +func (ctx *cbcAEAD) NonceSize() int { + return nonceBytes +} + +func (ctx *cbcAEAD) Overhead() int { + // Maximum overhead is block size (for padding) plus auth tag length, where + // the length of the auth tag is equivalent to the key size. + return ctx.blockCipher.BlockSize() + ctx.authtagBytes +} + +// Seal encrypts and authenticates the plaintext. +func (ctx *cbcAEAD) Seal(dst, nonce, plaintext, data []byte) []byte { + // Output buffer -- must take care not to mangle plaintext input. + ciphertext := make([]byte, uint64(len(plaintext))+uint64(ctx.Overhead()))[:len(plaintext)] + copy(ciphertext, plaintext) + ciphertext = padBuffer(ciphertext, ctx.blockCipher.BlockSize()) + + cbc := cipher.NewCBCEncrypter(ctx.blockCipher, nonce) + + cbc.CryptBlocks(ciphertext, ciphertext) + authtag := ctx.computeAuthTag(data, nonce, ciphertext) + + ret, out := resize(dst, uint64(len(dst))+uint64(len(ciphertext))+uint64(len(authtag))) + copy(out, ciphertext) + copy(out[len(ciphertext):], authtag) + + return ret +} + +// Open decrypts and authenticates the ciphertext. +func (ctx *cbcAEAD) Open(dst, nonce, ciphertext, data []byte) ([]byte, error) { + if len(ciphertext) < ctx.authtagBytes { + return nil, errors.New("go-jose/go-jose: invalid ciphertext (too short)") + } + + offset := len(ciphertext) - ctx.authtagBytes + expectedTag := ctx.computeAuthTag(data, nonce, ciphertext[:offset]) + match := subtle.ConstantTimeCompare(expectedTag, ciphertext[offset:]) + if match != 1 { + return nil, errors.New("go-jose/go-jose: invalid ciphertext (auth tag mismatch)") + } + + cbc := cipher.NewCBCDecrypter(ctx.blockCipher, nonce) + + // Make copy of ciphertext buffer, don't want to modify in place + buffer := append([]byte{}, ciphertext[:offset]...) + + if len(buffer)%ctx.blockCipher.BlockSize() > 0 { + return nil, errors.New("go-jose/go-jose: invalid ciphertext (invalid length)") + } + + cbc.CryptBlocks(buffer, buffer) + + // Remove padding + plaintext, err := unpadBuffer(buffer, ctx.blockCipher.BlockSize()) + if err != nil { + return nil, err + } + + ret, out := resize(dst, uint64(len(dst))+uint64(len(plaintext))) + copy(out, plaintext) + + return ret, nil +} + +// Compute an authentication tag +func (ctx *cbcAEAD) computeAuthTag(aad, nonce, ciphertext []byte) []byte { + buffer := make([]byte, uint64(len(aad))+uint64(len(nonce))+uint64(len(ciphertext))+8) + n := 0 + n += copy(buffer, aad) + n += copy(buffer[n:], nonce) + n += copy(buffer[n:], ciphertext) + binary.BigEndian.PutUint64(buffer[n:], uint64(len(aad))*8) + + // According to documentation, Write() on hash.Hash never fails. + hmac := hmac.New(ctx.hash, ctx.integrityKey) + _, _ = hmac.Write(buffer) + + return hmac.Sum(nil)[:ctx.authtagBytes] +} + +// resize ensures that the given slice has a capacity of at least n bytes. +// If the capacity of the slice is less than n, a new slice is allocated +// and the existing data will be copied. +func resize(in []byte, n uint64) (head, tail []byte) { + if uint64(cap(in)) >= n { + head = in[:n] + } else { + head = make([]byte, n) + copy(head, in) + } + + tail = head[len(in):] + return +} + +// Apply padding +func padBuffer(buffer []byte, blockSize int) []byte { + missing := blockSize - (len(buffer) % blockSize) + ret, out := resize(buffer, uint64(len(buffer))+uint64(missing)) + padding := bytes.Repeat([]byte{byte(missing)}, missing) + copy(out, padding) + return ret +} + +// Remove padding +func unpadBuffer(buffer []byte, blockSize int) ([]byte, error) { + if len(buffer)%blockSize != 0 { + return nil, errors.New("go-jose/go-jose: invalid padding") + } + + last := buffer[len(buffer)-1] + count := int(last) + + if count == 0 || count > blockSize || count > len(buffer) { + return nil, errors.New("go-jose/go-jose: invalid padding") + } + + padding := bytes.Repeat([]byte{last}, count) + if !bytes.HasSuffix(buffer, padding) { + return nil, errors.New("go-jose/go-jose: invalid padding") + } + + return buffer[:len(buffer)-count], nil +} diff --git a/vendor/github.com/go-jose/go-jose/v3/cipher/concat_kdf.go b/vendor/github.com/go-jose/go-jose/v3/cipher/concat_kdf.go new file mode 100644 index 0000000000..f62c3bdba5 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/cipher/concat_kdf.go @@ -0,0 +1,75 @@ +/*- + * Copyright 2014 Square Inc. + * + * 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 josecipher + +import ( + "crypto" + "encoding/binary" + "hash" + "io" +) + +type concatKDF struct { + z, info []byte + i uint32 + cache []byte + hasher hash.Hash +} + +// NewConcatKDF builds a KDF reader based on the given inputs. +func NewConcatKDF(hash crypto.Hash, z, algID, ptyUInfo, ptyVInfo, supPubInfo, supPrivInfo []byte) io.Reader { + buffer := make([]byte, uint64(len(algID))+uint64(len(ptyUInfo))+uint64(len(ptyVInfo))+uint64(len(supPubInfo))+uint64(len(supPrivInfo))) + n := 0 + n += copy(buffer, algID) + n += copy(buffer[n:], ptyUInfo) + n += copy(buffer[n:], ptyVInfo) + n += copy(buffer[n:], supPubInfo) + copy(buffer[n:], supPrivInfo) + + hasher := hash.New() + + return &concatKDF{ + z: z, + info: buffer, + hasher: hasher, + cache: []byte{}, + i: 1, + } +} + +func (ctx *concatKDF) Read(out []byte) (int, error) { + copied := copy(out, ctx.cache) + ctx.cache = ctx.cache[copied:] + + for copied < len(out) { + ctx.hasher.Reset() + + // Write on a hash.Hash never fails + _ = binary.Write(ctx.hasher, binary.BigEndian, ctx.i) + _, _ = ctx.hasher.Write(ctx.z) + _, _ = ctx.hasher.Write(ctx.info) + + hash := ctx.hasher.Sum(nil) + chunkCopied := copy(out[copied:], hash) + copied += chunkCopied + ctx.cache = hash[chunkCopied:] + + ctx.i++ + } + + return copied, nil +} diff --git a/vendor/github.com/go-jose/go-jose/v3/cipher/ecdh_es.go b/vendor/github.com/go-jose/go-jose/v3/cipher/ecdh_es.go new file mode 100644 index 0000000000..093c646740 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/cipher/ecdh_es.go @@ -0,0 +1,86 @@ +/*- + * Copyright 2014 Square Inc. + * + * 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 josecipher + +import ( + "bytes" + "crypto" + "crypto/ecdsa" + "crypto/elliptic" + "encoding/binary" +) + +// DeriveECDHES derives a shared encryption key using ECDH/ConcatKDF as described in JWE/JWA. +// It is an error to call this function with a private/public key that are not on the same +// curve. Callers must ensure that the keys are valid before calling this function. Output +// size may be at most 1<<16 bytes (64 KiB). +func DeriveECDHES(alg string, apuData, apvData []byte, priv *ecdsa.PrivateKey, pub *ecdsa.PublicKey, size int) []byte { + if size > 1<<16 { + panic("ECDH-ES output size too large, must be less than or equal to 1<<16") + } + + // algId, partyUInfo, partyVInfo inputs must be prefixed with the length + algID := lengthPrefixed([]byte(alg)) + ptyUInfo := lengthPrefixed(apuData) + ptyVInfo := lengthPrefixed(apvData) + + // suppPubInfo is the encoded length of the output size in bits + supPubInfo := make([]byte, 4) + binary.BigEndian.PutUint32(supPubInfo, uint32(size)*8) + + if !priv.PublicKey.Curve.IsOnCurve(pub.X, pub.Y) { + panic("public key not on same curve as private key") + } + + z, _ := priv.Curve.ScalarMult(pub.X, pub.Y, priv.D.Bytes()) + zBytes := z.Bytes() + + // Note that calling z.Bytes() on a big.Int may strip leading zero bytes from + // the returned byte array. This can lead to a problem where zBytes will be + // shorter than expected which breaks the key derivation. Therefore we must pad + // to the full length of the expected coordinate here before calling the KDF. + octSize := dSize(priv.Curve) + if len(zBytes) != octSize { + zBytes = append(bytes.Repeat([]byte{0}, octSize-len(zBytes)), zBytes...) + } + + reader := NewConcatKDF(crypto.SHA256, zBytes, algID, ptyUInfo, ptyVInfo, supPubInfo, []byte{}) + key := make([]byte, size) + + // Read on the KDF will never fail + _, _ = reader.Read(key) + + return key +} + +// dSize returns the size in octets for a coordinate on a elliptic curve. +func dSize(curve elliptic.Curve) int { + order := curve.Params().P + bitLen := order.BitLen() + size := bitLen / 8 + if bitLen%8 != 0 { + size++ + } + return size +} + +func lengthPrefixed(data []byte) []byte { + out := make([]byte, len(data)+4) + binary.BigEndian.PutUint32(out, uint32(len(data))) + copy(out[4:], data) + return out +} diff --git a/vendor/github.com/go-jose/go-jose/v3/cipher/key_wrap.go b/vendor/github.com/go-jose/go-jose/v3/cipher/key_wrap.go new file mode 100644 index 0000000000..b9effbca8a --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/cipher/key_wrap.go @@ -0,0 +1,109 @@ +/*- + * Copyright 2014 Square Inc. + * + * 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 josecipher + +import ( + "crypto/cipher" + "crypto/subtle" + "encoding/binary" + "errors" +) + +var defaultIV = []byte{0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6} + +// KeyWrap implements NIST key wrapping; it wraps a content encryption key (cek) with the given block cipher. +func KeyWrap(block cipher.Block, cek []byte) ([]byte, error) { + if len(cek)%8 != 0 { + return nil, errors.New("go-jose/go-jose: key wrap input must be 8 byte blocks") + } + + n := len(cek) / 8 + r := make([][]byte, n) + + for i := range r { + r[i] = make([]byte, 8) + copy(r[i], cek[i*8:]) + } + + buffer := make([]byte, 16) + tBytes := make([]byte, 8) + copy(buffer, defaultIV) + + for t := 0; t < 6*n; t++ { + copy(buffer[8:], r[t%n]) + + block.Encrypt(buffer, buffer) + + binary.BigEndian.PutUint64(tBytes, uint64(t+1)) + + for i := 0; i < 8; i++ { + buffer[i] ^= tBytes[i] + } + copy(r[t%n], buffer[8:]) + } + + out := make([]byte, (n+1)*8) + copy(out, buffer[:8]) + for i := range r { + copy(out[(i+1)*8:], r[i]) + } + + return out, nil +} + +// KeyUnwrap implements NIST key unwrapping; it unwraps a content encryption key (cek) with the given block cipher. +func KeyUnwrap(block cipher.Block, ciphertext []byte) ([]byte, error) { + if len(ciphertext)%8 != 0 { + return nil, errors.New("go-jose/go-jose: key wrap input must be 8 byte blocks") + } + + n := (len(ciphertext) / 8) - 1 + r := make([][]byte, n) + + for i := range r { + r[i] = make([]byte, 8) + copy(r[i], ciphertext[(i+1)*8:]) + } + + buffer := make([]byte, 16) + tBytes := make([]byte, 8) + copy(buffer[:8], ciphertext[:8]) + + for t := 6*n - 1; t >= 0; t-- { + binary.BigEndian.PutUint64(tBytes, uint64(t+1)) + + for i := 0; i < 8; i++ { + buffer[i] ^= tBytes[i] + } + copy(buffer[8:], r[t%n]) + + block.Decrypt(buffer, buffer) + + copy(r[t%n], buffer[8:]) + } + + if subtle.ConstantTimeCompare(buffer[:8], defaultIV) == 0 { + return nil, errors.New("go-jose/go-jose: failed to unwrap key") + } + + out := make([]byte, n*8) + for i := range r { + copy(out[i*8:], r[i]) + } + + return out, nil +} diff --git a/vendor/github.com/go-jose/go-jose/v3/crypter.go b/vendor/github.com/go-jose/go-jose/v3/crypter.go new file mode 100644 index 0000000000..8870e8905f --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/crypter.go @@ -0,0 +1,593 @@ +/*- + * Copyright 2014 Square Inc. + * + * 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 jose + +import ( + "crypto/ecdsa" + "crypto/rsa" + "errors" + "fmt" + + "github.com/go-jose/go-jose/v3/json" +) + +// Encrypter represents an encrypter which produces an encrypted JWE object. +type Encrypter interface { + Encrypt(plaintext []byte) (*JSONWebEncryption, error) + EncryptWithAuthData(plaintext []byte, aad []byte) (*JSONWebEncryption, error) + Options() EncrypterOptions +} + +// A generic content cipher +type contentCipher interface { + keySize() int + encrypt(cek []byte, aad, plaintext []byte) (*aeadParts, error) + decrypt(cek []byte, aad []byte, parts *aeadParts) ([]byte, error) +} + +// A key generator (for generating/getting a CEK) +type keyGenerator interface { + keySize() int + genKey() ([]byte, rawHeader, error) +} + +// A generic key encrypter +type keyEncrypter interface { + encryptKey(cek []byte, alg KeyAlgorithm) (recipientInfo, error) // Encrypt a key +} + +// A generic key decrypter +type keyDecrypter interface { + decryptKey(headers rawHeader, recipient *recipientInfo, generator keyGenerator) ([]byte, error) // Decrypt a key +} + +// A generic encrypter based on the given key encrypter and content cipher. +type genericEncrypter struct { + contentAlg ContentEncryption + compressionAlg CompressionAlgorithm + cipher contentCipher + recipients []recipientKeyInfo + keyGenerator keyGenerator + extraHeaders map[HeaderKey]interface{} +} + +type recipientKeyInfo struct { + keyID string + keyAlg KeyAlgorithm + keyEncrypter keyEncrypter +} + +// EncrypterOptions represents options that can be set on new encrypters. +type EncrypterOptions struct { + Compression CompressionAlgorithm + + // Optional map of name/value pairs to be inserted into the protected + // header of a JWS object. Some specifications which make use of + // JWS require additional values here. + // + // Values will be serialized by [json.Marshal] and must be valid inputs to + // that function. + // + // [json.Marshal]: https://pkg.go.dev/encoding/json#Marshal + ExtraHeaders map[HeaderKey]interface{} +} + +// WithHeader adds an arbitrary value to the ExtraHeaders map, initializing it +// if necessary, and returns the updated EncrypterOptions. +// +// The v parameter will be serialized by [json.Marshal] and must be a valid +// input to that function. +// +// [json.Marshal]: https://pkg.go.dev/encoding/json#Marshal +func (eo *EncrypterOptions) WithHeader(k HeaderKey, v interface{}) *EncrypterOptions { + if eo.ExtraHeaders == nil { + eo.ExtraHeaders = map[HeaderKey]interface{}{} + } + eo.ExtraHeaders[k] = v + return eo +} + +// WithContentType adds a content type ("cty") header and returns the updated +// EncrypterOptions. +func (eo *EncrypterOptions) WithContentType(contentType ContentType) *EncrypterOptions { + return eo.WithHeader(HeaderContentType, contentType) +} + +// WithType adds a type ("typ") header and returns the updated EncrypterOptions. +func (eo *EncrypterOptions) WithType(typ ContentType) *EncrypterOptions { + return eo.WithHeader(HeaderType, typ) +} + +// Recipient represents an algorithm/key to encrypt messages to. +// +// PBES2Count and PBES2Salt correspond with the "p2c" and "p2s" headers used +// on the password-based encryption algorithms PBES2-HS256+A128KW, +// PBES2-HS384+A192KW, and PBES2-HS512+A256KW. If they are not provided a safe +// default of 100000 will be used for the count and a 128-bit random salt will +// be generated. +type Recipient struct { + Algorithm KeyAlgorithm + // Key must have one of these types: + // - ed25519.PublicKey + // - *ecdsa.PublicKey + // - *rsa.PublicKey + // - *JSONWebKey + // - JSONWebKey + // - []byte (a symmetric key) + // - Any type that satisfies the OpaqueKeyEncrypter interface + // + // The type of Key must match the value of Algorithm. + Key interface{} + KeyID string + PBES2Count int + PBES2Salt []byte +} + +// NewEncrypter creates an appropriate encrypter based on the key type +func NewEncrypter(enc ContentEncryption, rcpt Recipient, opts *EncrypterOptions) (Encrypter, error) { + encrypter := &genericEncrypter{ + contentAlg: enc, + recipients: []recipientKeyInfo{}, + cipher: getContentCipher(enc), + } + if opts != nil { + encrypter.compressionAlg = opts.Compression + encrypter.extraHeaders = opts.ExtraHeaders + } + + if encrypter.cipher == nil { + return nil, ErrUnsupportedAlgorithm + } + + var keyID string + var rawKey interface{} + switch encryptionKey := rcpt.Key.(type) { + case JSONWebKey: + keyID, rawKey = encryptionKey.KeyID, encryptionKey.Key + case *JSONWebKey: + keyID, rawKey = encryptionKey.KeyID, encryptionKey.Key + case OpaqueKeyEncrypter: + keyID, rawKey = encryptionKey.KeyID(), encryptionKey + default: + rawKey = encryptionKey + } + + switch rcpt.Algorithm { + case DIRECT: + // Direct encryption mode must be treated differently + keyBytes, ok := rawKey.([]byte) + if !ok { + return nil, ErrUnsupportedKeyType + } + if encrypter.cipher.keySize() != len(keyBytes) { + return nil, ErrInvalidKeySize + } + encrypter.keyGenerator = staticKeyGenerator{ + key: keyBytes, + } + recipientInfo, _ := newSymmetricRecipient(rcpt.Algorithm, keyBytes) + recipientInfo.keyID = keyID + if rcpt.KeyID != "" { + recipientInfo.keyID = rcpt.KeyID + } + encrypter.recipients = []recipientKeyInfo{recipientInfo} + return encrypter, nil + case ECDH_ES: + // ECDH-ES (w/o key wrapping) is similar to DIRECT mode + keyDSA, ok := rawKey.(*ecdsa.PublicKey) + if !ok { + return nil, ErrUnsupportedKeyType + } + encrypter.keyGenerator = ecKeyGenerator{ + size: encrypter.cipher.keySize(), + algID: string(enc), + publicKey: keyDSA, + } + recipientInfo, _ := newECDHRecipient(rcpt.Algorithm, keyDSA) + recipientInfo.keyID = keyID + if rcpt.KeyID != "" { + recipientInfo.keyID = rcpt.KeyID + } + encrypter.recipients = []recipientKeyInfo{recipientInfo} + return encrypter, nil + default: + // Can just add a standard recipient + encrypter.keyGenerator = randomKeyGenerator{ + size: encrypter.cipher.keySize(), + } + err := encrypter.addRecipient(rcpt) + return encrypter, err + } +} + +// NewMultiEncrypter creates a multi-encrypter based on the given parameters +func NewMultiEncrypter(enc ContentEncryption, rcpts []Recipient, opts *EncrypterOptions) (Encrypter, error) { + cipher := getContentCipher(enc) + + if cipher == nil { + return nil, ErrUnsupportedAlgorithm + } + if len(rcpts) == 0 { + return nil, fmt.Errorf("go-jose/go-jose: recipients is nil or empty") + } + + encrypter := &genericEncrypter{ + contentAlg: enc, + recipients: []recipientKeyInfo{}, + cipher: cipher, + keyGenerator: randomKeyGenerator{ + size: cipher.keySize(), + }, + } + + if opts != nil { + encrypter.compressionAlg = opts.Compression + encrypter.extraHeaders = opts.ExtraHeaders + } + + for _, recipient := range rcpts { + err := encrypter.addRecipient(recipient) + if err != nil { + return nil, err + } + } + + return encrypter, nil +} + +func (ctx *genericEncrypter) addRecipient(recipient Recipient) (err error) { + var recipientInfo recipientKeyInfo + + switch recipient.Algorithm { + case DIRECT, ECDH_ES: + return fmt.Errorf("go-jose/go-jose: key algorithm '%s' not supported in multi-recipient mode", recipient.Algorithm) + } + + recipientInfo, err = makeJWERecipient(recipient.Algorithm, recipient.Key) + if recipient.KeyID != "" { + recipientInfo.keyID = recipient.KeyID + } + + switch recipient.Algorithm { + case PBES2_HS256_A128KW, PBES2_HS384_A192KW, PBES2_HS512_A256KW: + if sr, ok := recipientInfo.keyEncrypter.(*symmetricKeyCipher); ok { + sr.p2c = recipient.PBES2Count + sr.p2s = recipient.PBES2Salt + } + } + + if err == nil { + ctx.recipients = append(ctx.recipients, recipientInfo) + } + return err +} + +func makeJWERecipient(alg KeyAlgorithm, encryptionKey interface{}) (recipientKeyInfo, error) { + switch encryptionKey := encryptionKey.(type) { + case *rsa.PublicKey: + return newRSARecipient(alg, encryptionKey) + case *ecdsa.PublicKey: + return newECDHRecipient(alg, encryptionKey) + case []byte: + return newSymmetricRecipient(alg, encryptionKey) + case string: + return newSymmetricRecipient(alg, []byte(encryptionKey)) + case *JSONWebKey: + recipient, err := makeJWERecipient(alg, encryptionKey.Key) + recipient.keyID = encryptionKey.KeyID + return recipient, err + case OpaqueKeyEncrypter: + return newOpaqueKeyEncrypter(alg, encryptionKey) + } + return recipientKeyInfo{}, ErrUnsupportedKeyType +} + +// newDecrypter creates an appropriate decrypter based on the key type +func newDecrypter(decryptionKey interface{}) (keyDecrypter, error) { + switch decryptionKey := decryptionKey.(type) { + case *rsa.PrivateKey: + return &rsaDecrypterSigner{ + privateKey: decryptionKey, + }, nil + case *ecdsa.PrivateKey: + return &ecDecrypterSigner{ + privateKey: decryptionKey, + }, nil + case []byte: + return &symmetricKeyCipher{ + key: decryptionKey, + }, nil + case string: + return &symmetricKeyCipher{ + key: []byte(decryptionKey), + }, nil + case JSONWebKey: + return newDecrypter(decryptionKey.Key) + case *JSONWebKey: + return newDecrypter(decryptionKey.Key) + case OpaqueKeyDecrypter: + return &opaqueKeyDecrypter{decrypter: decryptionKey}, nil + default: + return nil, ErrUnsupportedKeyType + } +} + +// Implementation of encrypt method producing a JWE object. +func (ctx *genericEncrypter) Encrypt(plaintext []byte) (*JSONWebEncryption, error) { + return ctx.EncryptWithAuthData(plaintext, nil) +} + +// Implementation of encrypt method producing a JWE object. +func (ctx *genericEncrypter) EncryptWithAuthData(plaintext, aad []byte) (*JSONWebEncryption, error) { + obj := &JSONWebEncryption{} + obj.aad = aad + + obj.protected = &rawHeader{} + err := obj.protected.set(headerEncryption, ctx.contentAlg) + if err != nil { + return nil, err + } + + obj.recipients = make([]recipientInfo, len(ctx.recipients)) + + if len(ctx.recipients) == 0 { + return nil, fmt.Errorf("go-jose/go-jose: no recipients to encrypt to") + } + + cek, headers, err := ctx.keyGenerator.genKey() + if err != nil { + return nil, err + } + + obj.protected.merge(&headers) + + for i, info := range ctx.recipients { + recipient, err := info.keyEncrypter.encryptKey(cek, info.keyAlg) + if err != nil { + return nil, err + } + + err = recipient.header.set(headerAlgorithm, info.keyAlg) + if err != nil { + return nil, err + } + + if info.keyID != "" { + err = recipient.header.set(headerKeyID, info.keyID) + if err != nil { + return nil, err + } + } + obj.recipients[i] = recipient + } + + if len(ctx.recipients) == 1 { + // Move per-recipient headers into main protected header if there's + // only a single recipient. + obj.protected.merge(obj.recipients[0].header) + obj.recipients[0].header = nil + } + + if ctx.compressionAlg != NONE { + plaintext, err = compress(ctx.compressionAlg, plaintext) + if err != nil { + return nil, err + } + + err = obj.protected.set(headerCompression, ctx.compressionAlg) + if err != nil { + return nil, err + } + } + + for k, v := range ctx.extraHeaders { + b, err := json.Marshal(v) + if err != nil { + return nil, err + } + (*obj.protected)[k] = makeRawMessage(b) + } + + authData := obj.computeAuthData() + parts, err := ctx.cipher.encrypt(cek, authData, plaintext) + if err != nil { + return nil, err + } + + obj.iv = parts.iv + obj.ciphertext = parts.ciphertext + obj.tag = parts.tag + + return obj, nil +} + +func (ctx *genericEncrypter) Options() EncrypterOptions { + return EncrypterOptions{ + Compression: ctx.compressionAlg, + ExtraHeaders: ctx.extraHeaders, + } +} + +// Decrypt and validate the object and return the plaintext. This +// function does not support multi-recipient. If you desire multi-recipient +// decryption use DecryptMulti instead. +// +// The decryptionKey argument must contain a private or symmetric key +// and must have one of these types: +// - *ecdsa.PrivateKey +// - *rsa.PrivateKey +// - *JSONWebKey +// - JSONWebKey +// - *JSONWebKeySet +// - JSONWebKeySet +// - []byte (a symmetric key) +// - string (a symmetric key) +// - Any type that satisfies the OpaqueKeyDecrypter interface. +// +// Note that ed25519 is only available for signatures, not encryption, so is +// not an option here. +// +// Automatically decompresses plaintext, but returns an error if the decompressed +// data would be >250kB or >10x the size of the compressed data, whichever is larger. +func (obj JSONWebEncryption) Decrypt(decryptionKey interface{}) ([]byte, error) { + headers := obj.mergedHeaders(nil) + + if len(obj.recipients) > 1 { + return nil, errors.New("go-jose/go-jose: too many recipients in payload; expecting only one") + } + + critical, err := headers.getCritical() + if err != nil { + return nil, fmt.Errorf("go-jose/go-jose: invalid crit header") + } + + if len(critical) > 0 { + return nil, fmt.Errorf("go-jose/go-jose: unsupported crit header") + } + + key := tryJWKS(decryptionKey, obj.Header) + decrypter, err := newDecrypter(key) + if err != nil { + return nil, err + } + + cipher := getContentCipher(headers.getEncryption()) + if cipher == nil { + return nil, fmt.Errorf("go-jose/go-jose: unsupported enc value '%s'", string(headers.getEncryption())) + } + + generator := randomKeyGenerator{ + size: cipher.keySize(), + } + + parts := &aeadParts{ + iv: obj.iv, + ciphertext: obj.ciphertext, + tag: obj.tag, + } + + authData := obj.computeAuthData() + + var plaintext []byte + recipient := obj.recipients[0] + recipientHeaders := obj.mergedHeaders(&recipient) + + cek, err := decrypter.decryptKey(recipientHeaders, &recipient, generator) + if err == nil { + // Found a valid CEK -- let's try to decrypt. + plaintext, err = cipher.decrypt(cek, authData, parts) + } + + if plaintext == nil { + return nil, ErrCryptoFailure + } + + // The "zip" header parameter may only be present in the protected header. + if comp := obj.protected.getCompression(); comp != "" { + plaintext, err = decompress(comp, plaintext) + if err != nil { + return nil, fmt.Errorf("go-jose/go-jose: failed to decompress plaintext: %v", err) + } + } + + return plaintext, nil +} + +// DecryptMulti decrypts and validates the object and returns the plaintexts, +// with support for multiple recipients. It returns the index of the recipient +// for which the decryption was successful, the merged headers for that recipient, +// and the plaintext. +// +// The decryptionKey argument must have one of the types allowed for the +// decryptionKey argument of Decrypt(). +// +// Automatically decompresses plaintext, but returns an error if the decompressed +// data would be >250kB or >3x the size of the compressed data, whichever is larger. +func (obj JSONWebEncryption) DecryptMulti(decryptionKey interface{}) (int, Header, []byte, error) { + globalHeaders := obj.mergedHeaders(nil) + + critical, err := globalHeaders.getCritical() + if err != nil { + return -1, Header{}, nil, fmt.Errorf("go-jose/go-jose: invalid crit header") + } + + if len(critical) > 0 { + return -1, Header{}, nil, fmt.Errorf("go-jose/go-jose: unsupported crit header") + } + + key := tryJWKS(decryptionKey, obj.Header) + decrypter, err := newDecrypter(key) + if err != nil { + return -1, Header{}, nil, err + } + + encryption := globalHeaders.getEncryption() + cipher := getContentCipher(encryption) + if cipher == nil { + return -1, Header{}, nil, fmt.Errorf("go-jose/go-jose: unsupported enc value '%s'", string(encryption)) + } + + generator := randomKeyGenerator{ + size: cipher.keySize(), + } + + parts := &aeadParts{ + iv: obj.iv, + ciphertext: obj.ciphertext, + tag: obj.tag, + } + + authData := obj.computeAuthData() + + index := -1 + var plaintext []byte + var headers rawHeader + + for i, recipient := range obj.recipients { + recipientHeaders := obj.mergedHeaders(&recipient) + + cek, err := decrypter.decryptKey(recipientHeaders, &recipient, generator) + if err == nil { + // Found a valid CEK -- let's try to decrypt. + plaintext, err = cipher.decrypt(cek, authData, parts) + if err == nil { + index = i + headers = recipientHeaders + break + } + } + } + + if plaintext == nil { + return -1, Header{}, nil, ErrCryptoFailure + } + + // The "zip" header parameter may only be present in the protected header. + if comp := obj.protected.getCompression(); comp != "" { + plaintext, err = decompress(comp, plaintext) + if err != nil { + return -1, Header{}, nil, fmt.Errorf("go-jose/go-jose: failed to decompress plaintext: %v", err) + } + } + + sanitized, err := headers.sanitized() + if err != nil { + return -1, Header{}, nil, fmt.Errorf("go-jose/go-jose: failed to sanitize header: %v", err) + } + + return index, sanitized, plaintext, err +} diff --git a/vendor/github.com/go-jose/go-jose/v3/doc.go b/vendor/github.com/go-jose/go-jose/v3/doc.go new file mode 100644 index 0000000000..0ad40ca085 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/doc.go @@ -0,0 +1,25 @@ +/*- + * Copyright 2014 Square Inc. + * + * 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 jose aims to provide an implementation of the Javascript Object Signing +and Encryption set of standards. It implements encryption and signing based on +the JSON Web Encryption and JSON Web Signature standards, with optional JSON Web +Token support available in a sub-package. The library supports both the compact +and JWS/JWE JSON Serialization formats, and has optional support for multiple +recipients. +*/ +package jose diff --git a/vendor/github.com/go-jose/go-jose/v3/encoding.go b/vendor/github.com/go-jose/go-jose/v3/encoding.go new file mode 100644 index 0000000000..9f07cfdcb8 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/encoding.go @@ -0,0 +1,237 @@ +/*- + * Copyright 2014 Square Inc. + * + * 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 jose + +import ( + "bytes" + "compress/flate" + "encoding/base64" + "encoding/binary" + "fmt" + "io" + "math/big" + "strings" + "unicode" + + "github.com/go-jose/go-jose/v3/json" +) + +// Helper function to serialize known-good objects. +// Precondition: value is not a nil pointer. +func mustSerializeJSON(value interface{}) []byte { + out, err := json.Marshal(value) + if err != nil { + panic(err) + } + // We never want to serialize the top-level value "null," since it's not a + // valid JOSE message. But if a caller passes in a nil pointer to this method, + // MarshalJSON will happily serialize it as the top-level value "null". If + // that value is then embedded in another operation, for instance by being + // base64-encoded and fed as input to a signing algorithm + // (https://github.com/go-jose/go-jose/issues/22), the result will be + // incorrect. Because this method is intended for known-good objects, and a nil + // pointer is not a known-good object, we are free to panic in this case. + // Note: It's not possible to directly check whether the data pointed at by an + // interface is a nil pointer, so we do this hacky workaround. + // https://groups.google.com/forum/#!topic/golang-nuts/wnH302gBa4I + if string(out) == "null" { + panic("Tried to serialize a nil pointer.") + } + return out +} + +// Strip all newlines and whitespace +func stripWhitespace(data string) string { + buf := strings.Builder{} + buf.Grow(len(data)) + for _, r := range data { + if !unicode.IsSpace(r) { + buf.WriteRune(r) + } + } + return buf.String() +} + +// Perform compression based on algorithm +func compress(algorithm CompressionAlgorithm, input []byte) ([]byte, error) { + switch algorithm { + case DEFLATE: + return deflate(input) + default: + return nil, ErrUnsupportedAlgorithm + } +} + +// Perform decompression based on algorithm +func decompress(algorithm CompressionAlgorithm, input []byte) ([]byte, error) { + switch algorithm { + case DEFLATE: + return inflate(input) + default: + return nil, ErrUnsupportedAlgorithm + } +} + +// deflate compresses the input. +func deflate(input []byte) ([]byte, error) { + output := new(bytes.Buffer) + + // Writing to byte buffer, err is always nil + writer, _ := flate.NewWriter(output, 1) + _, _ = io.Copy(writer, bytes.NewBuffer(input)) + + err := writer.Close() + return output.Bytes(), err +} + +// inflate decompresses the input. +// +// Errors if the decompressed data would be >250kB or >10x the size of the +// compressed data, whichever is larger. +func inflate(input []byte) ([]byte, error) { + output := new(bytes.Buffer) + reader := flate.NewReader(bytes.NewBuffer(input)) + + maxCompressedSize := 10 * int64(len(input)) + if maxCompressedSize < 250000 { + maxCompressedSize = 250000 + } + + limit := maxCompressedSize + 1 + n, err := io.CopyN(output, reader, limit) + if err != nil && err != io.EOF { + return nil, err + } + if n == limit { + return nil, fmt.Errorf("uncompressed data would be too large (>%d bytes)", maxCompressedSize) + } + + err = reader.Close() + return output.Bytes(), err +} + +// byteBuffer represents a slice of bytes that can be serialized to url-safe base64. +type byteBuffer struct { + data []byte +} + +func newBuffer(data []byte) *byteBuffer { + if data == nil { + return nil + } + return &byteBuffer{ + data: data, + } +} + +func newFixedSizeBuffer(data []byte, length int) *byteBuffer { + if len(data) > length { + panic("go-jose/go-jose: invalid call to newFixedSizeBuffer (len(data) > length)") + } + pad := make([]byte, length-len(data)) + return newBuffer(append(pad, data...)) +} + +func newBufferFromInt(num uint64) *byteBuffer { + data := make([]byte, 8) + binary.BigEndian.PutUint64(data, num) + return newBuffer(bytes.TrimLeft(data, "\x00")) +} + +func (b *byteBuffer) MarshalJSON() ([]byte, error) { + return json.Marshal(b.base64()) +} + +func (b *byteBuffer) UnmarshalJSON(data []byte) error { + var encoded string + err := json.Unmarshal(data, &encoded) + if err != nil { + return err + } + + if encoded == "" { + return nil + } + + decoded, err := base64URLDecode(encoded) + if err != nil { + return err + } + + *b = *newBuffer(decoded) + + return nil +} + +func (b *byteBuffer) base64() string { + return base64.RawURLEncoding.EncodeToString(b.data) +} + +func (b *byteBuffer) bytes() []byte { + // Handling nil here allows us to transparently handle nil slices when serializing. + if b == nil { + return nil + } + return b.data +} + +func (b byteBuffer) bigInt() *big.Int { + return new(big.Int).SetBytes(b.data) +} + +func (b byteBuffer) toInt() int { + return int(b.bigInt().Int64()) +} + +// base64URLDecode is implemented as defined in https://www.rfc-editor.org/rfc/rfc7515.html#appendix-C +func base64URLDecode(value string) ([]byte, error) { + value = strings.TrimRight(value, "=") + return base64.RawURLEncoding.DecodeString(value) +} + +func base64EncodeLen(sl []byte) int { + return base64.RawURLEncoding.EncodedLen(len(sl)) +} + +func base64JoinWithDots(inputs ...[]byte) string { + if len(inputs) == 0 { + return "" + } + + // Count of dots. + totalCount := len(inputs) - 1 + + for _, input := range inputs { + totalCount += base64EncodeLen(input) + } + + out := make([]byte, totalCount) + startEncode := 0 + for i, input := range inputs { + base64.RawURLEncoding.Encode(out[startEncode:], input) + + if i == len(inputs)-1 { + continue + } + + startEncode += base64EncodeLen(input) + out[startEncode] = '.' + startEncode++ + } + + return string(out) +} diff --git a/vendor/github.com/go-jose/go-jose/v3/json/LICENSE b/vendor/github.com/go-jose/go-jose/v3/json/LICENSE new file mode 100644 index 0000000000..7448756763 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/json/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2012 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/go-jose/go-jose/v3/json/README.md b/vendor/github.com/go-jose/go-jose/v3/json/README.md new file mode 100644 index 0000000000..86de5e5581 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/json/README.md @@ -0,0 +1,13 @@ +# Safe JSON + +This repository contains a fork of the `encoding/json` package from Go 1.6. + +The following changes were made: + +* Object deserialization uses case-sensitive member name matching instead of + [case-insensitive matching](https://www.ietf.org/mail-archive/web/json/current/msg03763.html). + This is to avoid differences in the interpretation of JOSE messages between + go-jose and libraries written in other languages. +* When deserializing a JSON object, we check for duplicate keys and reject the + input whenever we detect a duplicate. Rather than trying to work with malformed + data, we prefer to reject it right away. diff --git a/vendor/github.com/go-jose/go-jose/v3/json/decode.go b/vendor/github.com/go-jose/go-jose/v3/json/decode.go new file mode 100644 index 0000000000..50634dd847 --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/json/decode.go @@ -0,0 +1,1216 @@ +// Copyright 2010 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. + +// Represents JSON data structure using native Go types: booleans, floats, +// strings, arrays, and maps. + +package json + +import ( + "bytes" + "encoding" + "encoding/base64" + "errors" + "fmt" + "math" + "reflect" + "runtime" + "strconv" + "unicode" + "unicode/utf16" + "unicode/utf8" +) + +// Unmarshal parses the JSON-encoded data and stores the result +// in the value pointed to by v. +// +// Unmarshal uses the inverse of the encodings that +// Marshal uses, allocating maps, slices, and pointers as necessary, +// with the following additional rules: +// +// To unmarshal JSON into a pointer, Unmarshal first handles the case of +// the JSON being the JSON literal null. In that case, Unmarshal sets +// the pointer to nil. Otherwise, Unmarshal unmarshals the JSON into +// the value pointed at by the pointer. If the pointer is nil, Unmarshal +// allocates a new value for it to point to. +// +// To unmarshal JSON into a struct, Unmarshal matches incoming object +// keys to the keys used by Marshal (either the struct field name or its tag), +// preferring an exact match but also accepting a case-insensitive match. +// Unmarshal will only set exported fields of the struct. +// +// To unmarshal JSON into an interface value, +// Unmarshal stores one of these in the interface value: +// +// bool, for JSON booleans +// float64, for JSON numbers +// string, for JSON strings +// []interface{}, for JSON arrays +// map[string]interface{}, for JSON objects +// nil for JSON null +// +// To unmarshal a JSON array into a slice, Unmarshal resets the slice length +// to zero and then appends each element to the slice. +// As a special case, to unmarshal an empty JSON array into a slice, +// Unmarshal replaces the slice with a new empty slice. +// +// To unmarshal a JSON array into a Go array, Unmarshal decodes +// JSON array elements into corresponding Go array elements. +// If the Go array is smaller than the JSON array, +// the additional JSON array elements are discarded. +// If the JSON array is smaller than the Go array, +// the additional Go array elements are set to zero values. +// +// To unmarshal a JSON object into a string-keyed map, Unmarshal first +// establishes a map to use, If the map is nil, Unmarshal allocates a new map. +// Otherwise Unmarshal reuses the existing map, keeping existing entries. +// Unmarshal then stores key-value pairs from the JSON object into the map. +// +// If a JSON value is not appropriate for a given target type, +// or if a JSON number overflows the target type, Unmarshal +// skips that field and completes the unmarshaling as best it can. +// If no more serious errors are encountered, Unmarshal returns +// an UnmarshalTypeError describing the earliest such error. +// +// The JSON null value unmarshals into an interface, map, pointer, or slice +// by setting that Go value to nil. Because null is often used in JSON to mean +// “not present,” unmarshaling a JSON null into any other Go type has no effect +// on the value and produces no error. +// +// When unmarshaling quoted strings, invalid UTF-8 or +// invalid UTF-16 surrogate pairs are not treated as an error. +// Instead, they are replaced by the Unicode replacement +// character U+FFFD. +func Unmarshal(data []byte, v interface{}) error { + // Check for well-formedness. + // Avoids filling out half a data structure + // before discovering a JSON syntax error. + var d decodeState + err := checkValid(data, &d.scan) + if err != nil { + return err + } + + d.init(data) + return d.unmarshal(v) +} + +// Unmarshaler is the interface implemented by objects +// that can unmarshal a JSON description of themselves. +// The input can be assumed to be a valid encoding of +// a JSON value. UnmarshalJSON must copy the JSON data +// if it wishes to retain the data after returning. +type Unmarshaler interface { + UnmarshalJSON([]byte) error +} + +// An UnmarshalTypeError describes a JSON value that was +// not appropriate for a value of a specific Go type. +type UnmarshalTypeError struct { + Value string // description of JSON value - "bool", "array", "number -5" + Type reflect.Type // type of Go value it could not be assigned to + Offset int64 // error occurred after reading Offset bytes +} + +func (e *UnmarshalTypeError) Error() string { + return "json: cannot unmarshal " + e.Value + " into Go value of type " + e.Type.String() +} + +// An UnmarshalFieldError describes a JSON object key that +// led to an unexported (and therefore unwritable) struct field. +// (No longer used; kept for compatibility.) +type UnmarshalFieldError struct { + Key string + Type reflect.Type + Field reflect.StructField +} + +func (e *UnmarshalFieldError) Error() string { + return "json: cannot unmarshal object key " + strconv.Quote(e.Key) + " into unexported field " + e.Field.Name + " of type " + e.Type.String() +} + +// An InvalidUnmarshalError describes an invalid argument passed to Unmarshal. +// (The argument to Unmarshal must be a non-nil pointer.) +type InvalidUnmarshalError struct { + Type reflect.Type +} + +func (e *InvalidUnmarshalError) Error() string { + if e.Type == nil { + return "json: Unmarshal(nil)" + } + + if e.Type.Kind() != reflect.Ptr { + return "json: Unmarshal(non-pointer " + e.Type.String() + ")" + } + return "json: Unmarshal(nil " + e.Type.String() + ")" +} + +func (d *decodeState) unmarshal(v interface{}) (err error) { + defer func() { + if r := recover(); r != nil { + if _, ok := r.(runtime.Error); ok { + panic(r) + } + err = r.(error) + } + }() + + rv := reflect.ValueOf(v) + if rv.Kind() != reflect.Ptr || rv.IsNil() { + return &InvalidUnmarshalError{reflect.TypeOf(v)} + } + + d.scan.reset() + // We decode rv not rv.Elem because the Unmarshaler interface + // test must be applied at the top level of the value. + d.value(rv) + return d.savedError +} + +// A Number represents a JSON number literal. +type Number string + +// String returns the literal text of the number. +func (n Number) String() string { return string(n) } + +// Float64 returns the number as a float64. +func (n Number) Float64() (float64, error) { + return strconv.ParseFloat(string(n), 64) +} + +// Int64 returns the number as an int64. +func (n Number) Int64() (int64, error) { + return strconv.ParseInt(string(n), 10, 64) +} + +// isValidNumber reports whether s is a valid JSON number literal. +func isValidNumber(s string) bool { + // This function implements the JSON numbers grammar. + // See https://tools.ietf.org/html/rfc7159#section-6 + // and http://json.org/number.gif + + if s == "" { + return false + } + + // Optional - + if s[0] == '-' { + s = s[1:] + if s == "" { + return false + } + } + + // Digits + switch { + default: + return false + + case s[0] == '0': + s = s[1:] + + case '1' <= s[0] && s[0] <= '9': + s = s[1:] + for len(s) > 0 && '0' <= s[0] && s[0] <= '9' { + s = s[1:] + } + } + + // . followed by 1 or more digits. + if len(s) >= 2 && s[0] == '.' && '0' <= s[1] && s[1] <= '9' { + s = s[2:] + for len(s) > 0 && '0' <= s[0] && s[0] <= '9' { + s = s[1:] + } + } + + // 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:] + if s[0] == '+' || s[0] == '-' { + s = s[1:] + if s == "" { + return false + } + } + for len(s) > 0 && '0' <= s[0] && s[0] <= '9' { + s = s[1:] + } + } + + // Make sure we are at the end. + return s == "" +} + +type NumberUnmarshalType int + +const ( + // unmarshal a JSON number into an interface{} as a float64 + UnmarshalFloat NumberUnmarshalType = iota + // unmarshal a JSON number into an interface{} as a `json.Number` + UnmarshalJSONNumber + // unmarshal a JSON number into an interface{} as a int64 + // if value is an integer otherwise float64 + UnmarshalIntOrFloat +) + +// decodeState represents the state while decoding a JSON value. +type decodeState struct { + data []byte + off int // read offset in data + scan scanner + nextscan scanner // for calls to nextValue + savedError error + numberType NumberUnmarshalType +} + +// errPhase is used for errors that should not happen unless +// there is a bug in the JSON decoder or something is editing +// the data slice while the decoder executes. +var errPhase = errors.New("JSON decoder out of sync - data changing underfoot?") + +func (d *decodeState) init(data []byte) *decodeState { + d.data = data + d.off = 0 + d.savedError = nil + return d +} + +// error aborts the decoding by panicking with err. +func (d *decodeState) error(err error) { + panic(err) +} + +// saveError saves the first err it is called with, +// for reporting at the end of the unmarshal. +func (d *decodeState) saveError(err error) { + if d.savedError == nil { + d.savedError = err + } +} + +// next cuts off and returns the next full JSON value in d.data[d.off:]. +// The next value is known to be an object or array, not a literal. +func (d *decodeState) next() []byte { + c := d.data[d.off] + item, rest, err := nextValue(d.data[d.off:], &d.nextscan) + if err != nil { + d.error(err) + } + d.off = len(d.data) - len(rest) + + // Our scanner has seen the opening brace/bracket + // and thinks we're still in the middle of the object. + // invent a closing brace/bracket to get it out. + if c == '{' { + d.scan.step(&d.scan, '}') + } else { + d.scan.step(&d.scan, ']') + } + + return item +} + +// scanWhile processes bytes in d.data[d.off:] until it +// receives a scan code not equal to op. +// It updates d.off and returns the new scan code. +func (d *decodeState) scanWhile(op int) int { + var newOp int + for { + if d.off >= len(d.data) { + newOp = d.scan.eof() + d.off = len(d.data) + 1 // mark processed EOF with len+1 + } else { + c := d.data[d.off] + d.off++ + newOp = d.scan.step(&d.scan, c) + } + if newOp != op { + break + } + } + return newOp +} + +// value decodes a JSON value from d.data[d.off:] into the value. +// it updates d.off to point past the decoded value. +func (d *decodeState) value(v reflect.Value) { + if !v.IsValid() { + _, rest, err := nextValue(d.data[d.off:], &d.nextscan) + if err != nil { + d.error(err) + } + d.off = len(d.data) - len(rest) + + // d.scan thinks we're still at the beginning of the item. + // Feed in an empty string - the shortest, simplest value - + // so that it knows we got to the end of the value. + if d.scan.redo { + // rewind. + d.scan.redo = false + d.scan.step = stateBeginValue + } + d.scan.step(&d.scan, '"') + d.scan.step(&d.scan, '"') + + n := len(d.scan.parseState) + if n > 0 && d.scan.parseState[n-1] == parseObjectKey { + // d.scan thinks we just read an object key; finish the object + d.scan.step(&d.scan, ':') + d.scan.step(&d.scan, '"') + d.scan.step(&d.scan, '"') + d.scan.step(&d.scan, '}') + } + + return + } + + switch op := d.scanWhile(scanSkipSpace); op { + default: + d.error(errPhase) + + case scanBeginArray: + d.array(v) + + case scanBeginObject: + d.object(v) + + case scanBeginLiteral: + d.literal(v) + } +} + +type unquotedValue struct{} + +// valueQuoted is like value but decodes a +// quoted string literal or literal null into an interface value. +// If it finds anything other than a quoted string literal or null, +// valueQuoted returns unquotedValue{}. +func (d *decodeState) valueQuoted() interface{} { + switch op := d.scanWhile(scanSkipSpace); op { + default: + d.error(errPhase) + + case scanBeginArray: + d.array(reflect.Value{}) + + case scanBeginObject: + d.object(reflect.Value{}) + + case scanBeginLiteral: + switch v := d.literalInterface().(type) { + case nil, string: + return v + } + } + return unquotedValue{} +} + +// indirect walks down v allocating pointers as needed, +// until it gets to a non-pointer. +// if it encounters an Unmarshaler, indirect stops and returns that. +// if decodingNull is true, indirect stops at the last pointer so it can be set to nil. +func (d *decodeState) indirect(v reflect.Value, decodingNull bool) (Unmarshaler, encoding.TextUnmarshaler, reflect.Value) { + // If v is a named type and is addressable, + // start with its address, so that if the type has pointer methods, + // we find them. + if v.Kind() != reflect.Ptr && v.Type().Name() != "" && v.CanAddr() { + v = v.Addr() + } + for { + // Load value from interface, but only if the result will be + // usefully addressable. + if v.Kind() == reflect.Interface && !v.IsNil() { + e := v.Elem() + if e.Kind() == reflect.Ptr && !e.IsNil() && (!decodingNull || e.Elem().Kind() == reflect.Ptr) { + v = e + continue + } + } + + if v.Kind() != reflect.Ptr { + break + } + + if v.Elem().Kind() != reflect.Ptr && decodingNull && v.CanSet() { + break + } + if v.IsNil() { + v.Set(reflect.New(v.Type().Elem())) + } + if v.Type().NumMethod() > 0 { + if u, ok := v.Interface().(Unmarshaler); ok { + return u, nil, reflect.Value{} + } + if u, ok := v.Interface().(encoding.TextUnmarshaler); ok { + return nil, u, reflect.Value{} + } + } + v = v.Elem() + } + return nil, nil, v +} + +// array consumes an array from d.data[d.off-1:], decoding into the value v. +// the first byte of the array ('[') has been read already. +func (d *decodeState) array(v reflect.Value) { + // Check for unmarshaler. + u, ut, pv := d.indirect(v, false) + if u != nil { + d.off-- + err := u.UnmarshalJSON(d.next()) + if err != nil { + d.error(err) + } + return + } + if ut != nil { + d.saveError(&UnmarshalTypeError{"array", v.Type(), int64(d.off)}) + d.off-- + d.next() + return + } + + v = pv + + // Check type of target. + switch v.Kind() { + case reflect.Interface: + if v.NumMethod() == 0 { + // Decoding into nil interface? Switch to non-reflect code. + v.Set(reflect.ValueOf(d.arrayInterface())) + return + } + // Otherwise it's invalid. + fallthrough + default: + d.saveError(&UnmarshalTypeError{"array", v.Type(), int64(d.off)}) + d.off-- + d.next() + return + case reflect.Array: + case reflect.Slice: + break + } + + i := 0 + for { + // Look ahead for ] - can only happen on first iteration. + op := d.scanWhile(scanSkipSpace) + if op == scanEndArray { + break + } + + // Back up so d.value can have the byte we just read. + d.off-- + d.scan.undo(op) + + // Get element of array, growing if necessary. + if v.Kind() == reflect.Slice { + // Grow slice if necessary + if i >= v.Cap() { + newcap := v.Cap() + v.Cap()/2 + if newcap < 4 { + newcap = 4 + } + newv := reflect.MakeSlice(v.Type(), v.Len(), newcap) + reflect.Copy(newv, v) + v.Set(newv) + } + if i >= v.Len() { + v.SetLen(i + 1) + } + } + + if i < v.Len() { + // Decode into element. + d.value(v.Index(i)) + } else { + // Ran out of fixed array: skip. + d.value(reflect.Value{}) + } + i++ + + // Next token must be , or ]. + op = d.scanWhile(scanSkipSpace) + if op == scanEndArray { + break + } + if op != scanArrayValue { + d.error(errPhase) + } + } + + if i < v.Len() { + if v.Kind() == reflect.Array { + // Array. Zero the rest. + z := reflect.Zero(v.Type().Elem()) + for ; i < v.Len(); i++ { + v.Index(i).Set(z) + } + } else { + v.SetLen(i) + } + } + if i == 0 && v.Kind() == reflect.Slice { + v.Set(reflect.MakeSlice(v.Type(), 0, 0)) + } +} + +var nullLiteral = []byte("null") + +// object consumes an object from d.data[d.off-1:], decoding into the value v. +// the first byte ('{') of the object has been read already. +func (d *decodeState) object(v reflect.Value) { + // Check for unmarshaler. + u, ut, pv := d.indirect(v, false) + if u != nil { + d.off-- + err := u.UnmarshalJSON(d.next()) + if err != nil { + d.error(err) + } + return + } + if ut != nil { + d.saveError(&UnmarshalTypeError{"object", v.Type(), int64(d.off)}) + d.off-- + d.next() // skip over { } in input + return + } + v = pv + + // Decoding into nil interface? Switch to non-reflect code. + if v.Kind() == reflect.Interface && v.NumMethod() == 0 { + v.Set(reflect.ValueOf(d.objectInterface())) + return + } + + // Check type of target: struct or map[string]T + switch v.Kind() { + case reflect.Map: + // map must have string kind + t := v.Type() + if t.Key().Kind() != reflect.String { + d.saveError(&UnmarshalTypeError{"object", v.Type(), int64(d.off)}) + d.off-- + d.next() // skip over { } in input + return + } + if v.IsNil() { + v.Set(reflect.MakeMap(t)) + } + case reflect.Struct: + + default: + d.saveError(&UnmarshalTypeError{"object", v.Type(), int64(d.off)}) + d.off-- + d.next() // skip over { } in input + return + } + + var mapElem reflect.Value + keys := map[string]bool{} + + for { + // Read opening " of string key or closing }. + op := d.scanWhile(scanSkipSpace) + if op == scanEndObject { + // closing } - can only happen on first iteration. + break + } + if op != scanBeginLiteral { + d.error(errPhase) + } + + // Read key. + start := d.off - 1 + op = d.scanWhile(scanContinue) + item := d.data[start : d.off-1] + key, ok := unquote(item) + if !ok { + d.error(errPhase) + } + + // Check for duplicate keys. + _, ok = keys[key] + if !ok { + keys[key] = true + } else { + d.error(fmt.Errorf("json: duplicate key '%s' in object", key)) + } + + // Figure out field corresponding to key. + var subv reflect.Value + destring := false // whether the value is wrapped in a string to be decoded first + + if v.Kind() == reflect.Map { + elemType := v.Type().Elem() + if !mapElem.IsValid() { + mapElem = reflect.New(elemType).Elem() + } else { + mapElem.Set(reflect.Zero(elemType)) + } + subv = mapElem + } else { + var f *field + fields := cachedTypeFields(v.Type()) + for i := range fields { + ff := &fields[i] + if bytes.Equal(ff.nameBytes, []byte(key)) { + f = ff + break + } + } + if f != nil { + subv = v + destring = f.quoted + for _, i := range f.index { + if subv.Kind() == reflect.Ptr { + if subv.IsNil() { + subv.Set(reflect.New(subv.Type().Elem())) + } + subv = subv.Elem() + } + subv = subv.Field(i) + } + } + } + + // Read : before value. + if op == scanSkipSpace { + op = d.scanWhile(scanSkipSpace) + } + if op != scanObjectKey { + d.error(errPhase) + } + + // Read value. + if destring { + switch qv := d.valueQuoted().(type) { + case nil: + d.literalStore(nullLiteral, subv, false) + case string: + d.literalStore([]byte(qv), subv, true) + default: + d.saveError(fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal unquoted value into %v", subv.Type())) + } + } else { + d.value(subv) + } + + // Write value back to map; + // if using struct, subv points into struct already. + if v.Kind() == reflect.Map { + kv := reflect.ValueOf(key).Convert(v.Type().Key()) + v.SetMapIndex(kv, subv) + } + + // Next token must be , or }. + op = d.scanWhile(scanSkipSpace) + if op == scanEndObject { + break + } + if op != scanObjectValue { + d.error(errPhase) + } + } +} + +// literal consumes a literal from d.data[d.off-1:], decoding into the value v. +// The first byte of the literal has been read already +// (that's how the caller knows it's a literal). +func (d *decodeState) literal(v reflect.Value) { + // All bytes inside literal return scanContinue op code. + start := d.off - 1 + op := d.scanWhile(scanContinue) + + // Scan read one byte too far; back up. + d.off-- + d.scan.undo(op) + + d.literalStore(d.data[start:d.off], v, false) +} + +// convertNumber converts the number literal s to a float64, int64 or a Number +// depending on d.numberDecodeType. +func (d *decodeState) convertNumber(s string) (interface{}, error) { + switch d.numberType { + + case UnmarshalJSONNumber: + return Number(s), nil + case UnmarshalIntOrFloat: + v, err := strconv.ParseInt(s, 10, 64) + if err == nil { + return v, nil + } + + // tries to parse integer number in scientific notation + f, err := strconv.ParseFloat(s, 64) + if err != nil { + return nil, &UnmarshalTypeError{"number " + s, reflect.TypeOf(0.0), int64(d.off)} + } + + // if it has no decimal value use int64 + if fi, fd := math.Modf(f); fd == 0.0 { + return int64(fi), nil + } + return f, nil + default: + f, err := strconv.ParseFloat(s, 64) + if err != nil { + return nil, &UnmarshalTypeError{"number " + s, reflect.TypeOf(0.0), int64(d.off)} + } + return f, nil + } + +} + +var numberType = reflect.TypeOf(Number("")) + +// literalStore decodes a literal stored in item into v. +// +// fromQuoted indicates whether this literal came from unwrapping a +// string from the ",string" struct tag option. this is used only to +// produce more helpful error messages. +func (d *decodeState) literalStore(item []byte, v reflect.Value, fromQuoted bool) { + // Check for unmarshaler. + if len(item) == 0 { + //Empty string given + d.saveError(fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())) + return + } + wantptr := item[0] == 'n' // null + u, ut, pv := d.indirect(v, wantptr) + if u != nil { + err := u.UnmarshalJSON(item) + if err != nil { + d.error(err) + } + return + } + if ut != nil { + if item[0] != '"' { + if fromQuoted { + d.saveError(fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())) + } else { + d.saveError(&UnmarshalTypeError{"string", v.Type(), int64(d.off)}) + } + return + } + s, ok := unquoteBytes(item) + if !ok { + if fromQuoted { + d.error(fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())) + } else { + d.error(errPhase) + } + } + err := ut.UnmarshalText(s) + if err != nil { + d.error(err) + } + return + } + + v = pv + + switch c := item[0]; c { + case 'n': // null + switch v.Kind() { + case reflect.Interface, reflect.Ptr, reflect.Map, reflect.Slice: + v.Set(reflect.Zero(v.Type())) + // otherwise, ignore null for primitives/string + } + case 't', 'f': // true, false + value := c == 't' + switch v.Kind() { + default: + if fromQuoted { + d.saveError(fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())) + } else { + d.saveError(&UnmarshalTypeError{"bool", v.Type(), int64(d.off)}) + } + case reflect.Bool: + v.SetBool(value) + case reflect.Interface: + if v.NumMethod() == 0 { + v.Set(reflect.ValueOf(value)) + } else { + d.saveError(&UnmarshalTypeError{"bool", v.Type(), int64(d.off)}) + } + } + + case '"': // string + s, ok := unquoteBytes(item) + if !ok { + if fromQuoted { + d.error(fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())) + } else { + d.error(errPhase) + } + } + switch v.Kind() { + default: + d.saveError(&UnmarshalTypeError{"string", v.Type(), int64(d.off)}) + case reflect.Slice: + if v.Type().Elem().Kind() != reflect.Uint8 { + d.saveError(&UnmarshalTypeError{"string", v.Type(), int64(d.off)}) + break + } + b := make([]byte, base64.StdEncoding.DecodedLen(len(s))) + n, err := base64.StdEncoding.Decode(b, s) + if err != nil { + d.saveError(err) + break + } + v.SetBytes(b[:n]) + case reflect.String: + v.SetString(string(s)) + case reflect.Interface: + if v.NumMethod() == 0 { + v.Set(reflect.ValueOf(string(s))) + } else { + d.saveError(&UnmarshalTypeError{"string", v.Type(), int64(d.off)}) + } + } + + default: // number + if c != '-' && (c < '0' || c > '9') { + if fromQuoted { + d.error(fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())) + } else { + d.error(errPhase) + } + } + s := string(item) + switch v.Kind() { + default: + if v.Kind() == reflect.String && v.Type() == numberType { + v.SetString(s) + if !isValidNumber(s) { + d.error(fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", item)) + } + break + } + if fromQuoted { + d.error(fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())) + } else { + d.error(&UnmarshalTypeError{"number", v.Type(), int64(d.off)}) + } + case reflect.Interface: + n, err := d.convertNumber(s) + if err != nil { + d.saveError(err) + break + } + if v.NumMethod() != 0 { + d.saveError(&UnmarshalTypeError{"number", v.Type(), int64(d.off)}) + break + } + v.Set(reflect.ValueOf(n)) + + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + n, err := strconv.ParseInt(s, 10, 64) + if err != nil || v.OverflowInt(n) { + d.saveError(&UnmarshalTypeError{"number " + s, v.Type(), int64(d.off)}) + break + } + v.SetInt(n) + + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + n, err := strconv.ParseUint(s, 10, 64) + if err != nil || v.OverflowUint(n) { + d.saveError(&UnmarshalTypeError{"number " + s, v.Type(), int64(d.off)}) + break + } + v.SetUint(n) + + case reflect.Float32, reflect.Float64: + n, err := strconv.ParseFloat(s, v.Type().Bits()) + if err != nil || v.OverflowFloat(n) { + d.saveError(&UnmarshalTypeError{"number " + s, v.Type(), int64(d.off)}) + break + } + v.SetFloat(n) + } + } +} + +// The xxxInterface routines build up a value to be stored +// in an empty interface. They are not strictly necessary, +// but they avoid the weight of reflection in this common case. + +// valueInterface is like value but returns interface{} +func (d *decodeState) valueInterface() interface{} { + switch d.scanWhile(scanSkipSpace) { + default: + d.error(errPhase) + panic("unreachable") + case scanBeginArray: + return d.arrayInterface() + case scanBeginObject: + return d.objectInterface() + case scanBeginLiteral: + return d.literalInterface() + } +} + +// arrayInterface is like array but returns []interface{}. +func (d *decodeState) arrayInterface() []interface{} { + var v = make([]interface{}, 0) + for { + // Look ahead for ] - can only happen on first iteration. + op := d.scanWhile(scanSkipSpace) + if op == scanEndArray { + break + } + + // Back up so d.value can have the byte we just read. + d.off-- + d.scan.undo(op) + + v = append(v, d.valueInterface()) + + // Next token must be , or ]. + op = d.scanWhile(scanSkipSpace) + if op == scanEndArray { + break + } + if op != scanArrayValue { + d.error(errPhase) + } + } + return v +} + +// objectInterface is like object but returns map[string]interface{}. +func (d *decodeState) objectInterface() map[string]interface{} { + m := make(map[string]interface{}) + keys := map[string]bool{} + + for { + // Read opening " of string key or closing }. + op := d.scanWhile(scanSkipSpace) + if op == scanEndObject { + // closing } - can only happen on first iteration. + break + } + if op != scanBeginLiteral { + d.error(errPhase) + } + + // Read string key. + start := d.off - 1 + op = d.scanWhile(scanContinue) + item := d.data[start : d.off-1] + key, ok := unquote(item) + if !ok { + d.error(errPhase) + } + + // Check for duplicate keys. + _, ok = keys[key] + if !ok { + keys[key] = true + } else { + d.error(fmt.Errorf("json: duplicate key '%s' in object", key)) + } + + // Read : before value. + if op == scanSkipSpace { + op = d.scanWhile(scanSkipSpace) + } + if op != scanObjectKey { + d.error(errPhase) + } + + // Read value. + m[key] = d.valueInterface() + + // Next token must be , or }. + op = d.scanWhile(scanSkipSpace) + if op == scanEndObject { + break + } + if op != scanObjectValue { + d.error(errPhase) + } + } + return m +} + +// literalInterface is like literal but returns an interface value. +func (d *decodeState) literalInterface() interface{} { + // All bytes inside literal return scanContinue op code. + start := d.off - 1 + op := d.scanWhile(scanContinue) + + // Scan read one byte too far; back up. + d.off-- + d.scan.undo(op) + item := d.data[start:d.off] + + switch c := item[0]; c { + case 'n': // null + return nil + + case 't', 'f': // true, false + return c == 't' + + case '"': // string + s, ok := unquote(item) + if !ok { + d.error(errPhase) + } + return s + + default: // number + if c != '-' && (c < '0' || c > '9') { + d.error(errPhase) + } + n, err := d.convertNumber(string(item)) + if err != nil { + d.saveError(err) + } + return n + } +} + +// getu4 decodes \uXXXX from the beginning of s, returning the hex value, +// or it returns -1. +func getu4(s []byte) rune { + if len(s) < 6 || s[0] != '\\' || s[1] != 'u' { + return -1 + } + r, err := strconv.ParseUint(string(s[2:6]), 16, 64) + if err != nil { + return -1 + } + return rune(r) +} + +// unquote converts a quoted JSON string literal s into an actual string t. +// The rules are different than for Go, so cannot use strconv.Unquote. +func unquote(s []byte) (t string, ok bool) { + s, ok = unquoteBytes(s) + t = string(s) + return +} + +func unquoteBytes(s []byte) (t []byte, ok bool) { + if len(s) < 2 || s[0] != '"' || s[len(s)-1] != '"' { + return + } + s = s[1 : len(s)-1] + + // Check for unusual characters. If there are none, + // then no unquoting is needed, so return a slice of the + // original bytes. + r := 0 + for r < len(s) { + c := s[r] + if c == '\\' || c == '"' || c < ' ' { + break + } + if c < utf8.RuneSelf { + r++ + continue + } + rr, size := utf8.DecodeRune(s[r:]) + if rr == utf8.RuneError && size == 1 { + break + } + r += size + } + if r == len(s) { + return s, true + } + + b := make([]byte, len(s)+2*utf8.UTFMax) + w := copy(b, s[0:r]) + for r < len(s) { + // Out of room? Can only happen if s is full of + // malformed UTF-8 and we're replacing each + // byte with RuneError. + if w >= len(b)-2*utf8.UTFMax { + nb := make([]byte, (len(b)+utf8.UTFMax)*2) + copy(nb, b[0:w]) + b = nb + } + switch c := s[r]; { + case c == '\\': + r++ + if r >= len(s) { + return + } + switch s[r] { + default: + return + case '"', '\\', '/', '\'': + b[w] = s[r] + r++ + w++ + case 'b': + b[w] = '\b' + r++ + w++ + case 'f': + b[w] = '\f' + r++ + w++ + case 'n': + b[w] = '\n' + r++ + w++ + case 'r': + b[w] = '\r' + r++ + w++ + case 't': + b[w] = '\t' + r++ + w++ + case 'u': + r-- + rr := getu4(s[r:]) + if rr < 0 { + return + } + r += 6 + if utf16.IsSurrogate(rr) { + rr1 := getu4(s[r:]) + if dec := utf16.DecodeRune(rr, rr1); dec != unicode.ReplacementChar { + // A valid pair; consume. + r += 6 + w += utf8.EncodeRune(b[w:], dec) + break + } + // Invalid surrogate; fall back to replacement rune. + rr = unicode.ReplacementChar + } + w += utf8.EncodeRune(b[w:], rr) + } + + // Quote, control characters are invalid. + case c == '"', c < ' ': + return + + // ASCII + case c < utf8.RuneSelf: + b[w] = c + r++ + w++ + + // Coerce to well-formed UTF-8. + default: + rr, size := utf8.DecodeRune(s[r:]) + r += size + w += utf8.EncodeRune(b[w:], rr) + } + } + return b[0:w], true +} diff --git a/vendor/github.com/go-jose/go-jose/v3/json/encode.go b/vendor/github.com/go-jose/go-jose/v3/json/encode.go new file mode 100644 index 0000000000..98de68ce1e --- /dev/null +++ b/vendor/github.com/go-jose/go-jose/v3/json/encode.go @@ -0,0 +1,1197 @@ +// Copyright 2010 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 implements encoding and decoding of JSON objects as defined in +// RFC 4627. The mapping between JSON objects and Go values is described +// in the documentation for the Marshal and Unmarshal functions. +// +// See "JSON and Go" for an introduction to this package: +// https://golang.org/doc/articles/json_and_go.html +package json + +import ( + "bytes" + "encoding" + "encoding/base64" + "fmt" + "math" + "reflect" + "runtime" + "sort" + "strconv" + "strings" + "sync" + "unicode" + "unicode/utf8" +) + +// Marshal returns the JSON encoding of v. +// +// Marshal traverses the value v recursively. +// If an encountered value implements the Marshaler interface +// and is not a nil pointer, Marshal calls its MarshalJSON method +// to produce JSON. If no MarshalJSON method is present but the +// value implements encoding.TextMarshaler instead, Marshal calls +// its MarshalText method. +// The nil pointer exception is not strictly necessary +// but mimics a similar, necessary exception in the behavior of +// UnmarshalJSON. +// +// Otherwise, Marshal uses the following type-dependent default encodings: +// +// Boolean values encode as JSON booleans. +// +// Floating point, integer, and Number values encode as JSON numbers. +// +// String values encode as JSON strings coerced to valid UTF-8, +// replacing invalid bytes with the Unicode replacement rune. +// The angle brackets "<" and ">" are escaped to "\u003c" and "\u003e" +// to keep some browsers from misinterpreting JSON output as HTML. +// Ampersand "&" is also escaped to "\u0026" for the same reason. +// +// Array and slice values encode as JSON arrays, except that +// []byte encodes as a base64-encoded string, and a nil slice +// encodes as the null JSON object. +// +// Struct values encode as JSON objects. Each exported struct field +// becomes a member of the object unless +// - the field's tag is "-", or +// - the field is empty and its tag specifies the "omitempty" option. +// +// The empty values are false, 0, any +// nil pointer or interface value, and any array, slice, map, or string of +// length zero. The object's default key string is the struct field name +// but can be specified in the struct field's tag value. The "json" key in +// the struct field's tag value is the key name, followed by an optional comma +// and options. Examples: +// +// // Field is ignored by this package. +// Field int `json:"-"` +// +// // Field appears in JSON as key "myName". +// Field int `json:"myName"` +// +// // Field appears in JSON as key "myName" and +// // the field is omitted from the object if its value is empty, +// // as defined above. +// Field int `json:"myName,omitempty"` +// +// // Field appears in JSON as key "Field" (the default), but +// // the field is skipped if empty. +// // Note the leading comma. +// Field int `json:",omitempty"` +// +// The "string" option signals that a field is stored as JSON inside a +// JSON-encoded string. It applies only to fields of string, floating point, +// integer, or boolean types. This extra level of encoding is sometimes used +// when communicating with JavaScript programs: +// +// Int64String int64 `json:",string"` +// +// The key name will be used if it's a non-empty string consisting of +// only Unicode letters, digits, dollar signs, percent signs, hyphens, +// underscores and slashes. +// +// Anonymous struct fields are usually marshaled as if their inner exported fields +// were fields in the outer struct, subject to the usual Go visibility rules amended +// as described in the next paragraph. +// An anonymous struct field with a name given in its JSON tag is treated as +// having that name, rather than being anonymous. +// An anonymous struct field of interface type is treated the same as having +// that type as its name, rather than being anonymous. +// +// The Go visibility rules for struct fields are amended for JSON when +// deciding which field to marshal or unmarshal. If there are +// multiple fields at the same level, and that level is the least +// nested (and would therefore be the nesting level selected by the +// usual Go rules), the following extra rules apply: +// +// 1) Of those fields, if any are JSON-tagged, only tagged fields are considered, +// even if there are multiple untagged fields that would otherwise conflict. +// 2) If there is exactly one field (tagged or not according to the first rule), that is selected. +// 3) Otherwise there are multiple fields, and all are ignored; no error occurs. +// +// Handling of anonymous struct fields is new in Go 1.1. +// Prior to Go 1.1, anonymous struct fields were ignored. To force ignoring of +// an anonymous struct field in both current and earlier versions, give the field +// a JSON tag of "-". +// +// Map values encode as JSON objects. +// The map's key type must be string; the map keys are used as JSON object +// keys, subject to the UTF-8 coercion described for string values above. +// +// Pointer values encode as the value pointed to. +// A nil pointer encodes as the null JSON object. +// +// Interface values encode as the value contained in the interface. +// A nil interface value encodes as the null JSON object. +// +// Channel, complex, and function values cannot be encoded in JSON. +// Attempting to encode such a value causes Marshal to return +// an UnsupportedTypeError. +// +// JSON cannot represent cyclic data structures and Marshal does not +// handle them. Passing cyclic structures to Marshal will result in +// an infinite recursion. +func Marshal(v interface{}) ([]byte, error) { + e := &encodeState{} + err := e.marshal(v) + if err != nil { + return nil, err + } + return e.Bytes(), nil +} + +// MarshalIndent is like Marshal but applies Indent to format the output. +func MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) { + b, err := Marshal(v) + if err != nil { + return nil, err + } + var buf bytes.Buffer + err = Indent(&buf, b, prefix, indent) + if err != nil { + return nil, err + } + return buf.Bytes(), nil +} + +// HTMLEscape appends to dst the JSON-encoded src with <, >, &, U+2028 and U+2029 +// characters inside string literals changed to \u003c, \u003e, \u0026, \u2028, \u2029 +// so that the JSON will be safe to embed inside HTML