diff --git a/cli/command/registry.go b/cli/command/registry.go index 89fa0cca59..dab062bbe4 100644 --- a/cli/command/registry.go +++ b/cli/command/registry.go @@ -41,7 +41,7 @@ func RegistryAuthenticationPrivilegedFunc(cli Cli, index *registrytypes.IndexInf default: } - err = ConfigureAuth(ctx, cli, "", "", &authConfig, isDefaultRegistry) + authConfig, err = PromptUserForCredentials(ctx, cli, "", "", authConfig.Username, indexServer) if err != nil { return "", err } @@ -86,8 +86,32 @@ func GetDefaultAuthConfig(cfg *configfile.ConfigFile, checkCredStore bool, serve return registrytypes.AuthConfig(authconfig), nil } -// ConfigureAuth handles prompting of user's username and password if needed -func ConfigureAuth(ctx context.Context, cli Cli, flUser, flPassword string, authconfig *registrytypes.AuthConfig, isDefaultRegistry bool) error { +// ConfigureAuth handles prompting of user's username and password if needed. +// Deprecated: use PromptUserForCredentials instead. +func ConfigureAuth(ctx context.Context, cli Cli, flUser, flPassword string, authConfig *registrytypes.AuthConfig, _ bool) error { + defaultUsername := authConfig.Username + serverAddress := authConfig.ServerAddress + + newAuthConfig, err := PromptUserForCredentials(ctx, cli, flUser, flPassword, defaultUsername, serverAddress) + if err != nil { + return err + } + + authConfig.Username = newAuthConfig.Username + authConfig.Password = newAuthConfig.Password + return nil +} + +// PromptUserForCredentials handles the CLI prompt for the user to input +// credentials. +// If argUser is not empty, then the user is only prompted for their password. +// If argPassword is not empty, then the user is only prompted for their username +// If neither argUser nor argPassword are empty, then the user is not prompted and +// an AuthConfig is returned with those values. +// If defaultUsername is not empty, the username prompt includes that username +// and the user can hit enter without inputting a username to use that default +// username. +func PromptUserForCredentials(ctx context.Context, cli Cli, argUser, argPassword, defaultUsername, serverAddress string) (authConfig registrytypes.AuthConfig, err error) { // On Windows, force the use of the regular OS stdin stream. // // See: @@ -107,13 +131,14 @@ func ConfigureAuth(ctx context.Context, cli Cli, flUser, flPassword string, auth // Linux will hit this if you attempt `cat | docker login`, and Windows // will hit this if you attempt docker login from mintty where stdin // is a pipe, not a character based console. - if flPassword == "" && !cli.In().IsTerminal() { - return errors.Errorf("Error: Cannot perform an interactive login from a non TTY device") + if argPassword == "" && !cli.In().IsTerminal() { + return authConfig, errors.Errorf("Error: Cannot perform an interactive login from a non TTY device") } - authconfig.Username = strings.TrimSpace(authconfig.Username) + isDefaultRegistry := serverAddress == registry.IndexServer + defaultUsername = strings.TrimSpace(defaultUsername) - if flUser = strings.TrimSpace(flUser); flUser == "" { + if argUser = strings.TrimSpace(argUser); argUser == "" { if isDefaultRegistry { // if this is a default registry (docker hub), then display the following message. fmt.Fprintln(cli.Out(), "Log in with your Docker ID or email address to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com/ to create one.") @@ -124,44 +149,43 @@ func ConfigureAuth(ctx context.Context, cli Cli, flUser, flPassword string, auth } var prompt string - if authconfig.Username == "" { + if defaultUsername == "" { prompt = "Username: " } else { - prompt = fmt.Sprintf("Username (%s): ", authconfig.Username) + prompt = fmt.Sprintf("Username (%s): ", defaultUsername) } - var err error - flUser, err = PromptForInput(ctx, cli.In(), cli.Out(), prompt) + argUser, err = PromptForInput(ctx, cli.In(), cli.Out(), prompt) if err != nil { - return err + return authConfig, err } - if flUser == "" { - flUser = authconfig.Username + if argUser == "" { + argUser = defaultUsername } } - if flUser == "" { - return errors.Errorf("Error: Non-null Username Required") + if argUser == "" { + return authConfig, errors.Errorf("Error: Non-null Username Required") } - if flPassword == "" { + if argPassword == "" { restoreInput, err := DisableInputEcho(cli.In()) if err != nil { - return err + return authConfig, err } defer restoreInput() - flPassword, err = PromptForInput(ctx, cli.In(), cli.Out(), "Password: ") + argPassword, err = PromptForInput(ctx, cli.In(), cli.Out(), "Password: ") if err != nil { - return err + return authConfig, err } fmt.Fprint(cli.Out(), "\n") - if flPassword == "" { - return errors.Errorf("Error: Password Required") + if argPassword == "" { + return authConfig, errors.Errorf("Error: Password Required") } } - authconfig.Username = flUser - authconfig.Password = flPassword - - return nil + authConfig.Username = argUser + authConfig.Password = argPassword + authConfig.ServerAddress = serverAddress + return authConfig, nil } // RetrieveAuthTokenFromImage retrieves an encoded auth token given a complete diff --git a/cli/command/registry/login.go b/cli/command/registry/login.go index 95ce5eebb8..82204bab84 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" @@ -79,70 +80,145 @@ func verifyloginOptions(dockerCli command.Cli, opts *loginOptions) error { return nil } -func runLogin(ctx context.Context, dockerCli command.Cli, opts loginOptions) error { //nolint:gocyclo - clnt := dockerCli.Client() +func runLogin(ctx context.Context, dockerCli command.Cli, opts loginOptions) error { if err := verifyloginOptions(dockerCli, &opts); err != nil { return err } var ( serverAddress string - response registrytypes.AuthenticateOKBody + response *registrytypes.AuthenticateOKBody ) - if opts.serverAddress != "" && opts.serverAddress != registry.DefaultNamespace { + if opts.serverAddress != "" && + opts.serverAddress != registry.DefaultNamespace && + opts.serverAddress != registry.DefaultRegistryHost { serverAddress = opts.serverAddress } else { serverAddress = registry.IndexServer } - isDefaultRegistry := serverAddress == registry.IndexServer + + // attempt login with current (stored) credentials authConfig, err := command.GetDefaultAuthConfig(dockerCli.ConfigFile(), opts.user == "" && opts.password == "", serverAddress, isDefaultRegistry) if err == nil && authConfig.Username != "" && authConfig.Password != "" { - response, err = loginWithCredStoreCreds(ctx, dockerCli, &authConfig) + response, err = loginWithStoredCredentials(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 - } - response, err = clnt.RegistryLogin(ctx, authConfig) - if err != nil && client.IsErrConnectionFailed(err) { - // If the server isn't responding (yet) attempt to login purely client side - response, err = loginClientSide(ctx, authConfig) - } - // If we (still) have an error, give up + // if we failed to authenticate with stored credentials (or didn't have stored credentials), + // prompt the user for new credentials + if err != nil || authConfig.Username == "" || authConfig.Password == "" { + response, err = loginUser(ctx, dockerCli, opts, authConfig.Username, serverAddress) if err != nil { return err } } + + if response != nil && response.Status != "" { + _, _ = fmt.Fprintln(dockerCli.Out(), response.Status) + } + return nil +} + +func loginWithStoredCredentials(ctx context.Context, dockerCli command.Cli, authConfig registrytypes.AuthConfig) (*registrytypes.AuthenticateOKBody, error) { + _, _ = fmt.Fprintf(dockerCli.Out(), "Authenticating with existing credentials...\n") + response, err := dockerCli.Client().RegistryLogin(ctx, authConfig) + if err != nil { + if errdefs.IsUnauthorized(err) { + _, _ = fmt.Fprintf(dockerCli.Err(), "Stored credentials invalid or expired\n") + } else { + _, _ = fmt.Fprintf(dockerCli.Err(), "Login did not succeed, error: %s\n", err) + } + } + if response.IdentityToken != "" { authConfig.Password = "" authConfig.IdentityToken = response.IdentityToken } - creds := dockerCli.ConfigFile().GetCredentialsStore(serverAddress) + if err := storeCredentials(dockerCli, authConfig); err != nil { + return nil, err + } + + return &response, err +} + +func loginUser(ctx context.Context, dockerCli command.Cli, opts loginOptions, defaultUsername, serverAddress string) (*registrytypes.AuthenticateOKBody, error) { + // If we're logging into the index server and the user didn't provide a username or password, use the device flow + if serverAddress == registry.IndexServer && opts.user == "" && opts.password == "" { + response, err := loginWithDeviceCodeFlow(ctx, dockerCli) + // if the error represents a failure to initiate the device-code flow, + // then we fallback to regular cli credentials login + if !errors.Is(err, manager.ErrDeviceLoginStartFail) { + return response, err + } + fmt.Fprint(dockerCli.Err(), "Failed to start web-based login - falling back to command line login...\n\n") + } + + return loginWithUsernameAndPassword(ctx, dockerCli, opts, defaultUsername, serverAddress) +} + +func loginWithUsernameAndPassword(ctx context.Context, dockerCli command.Cli, opts loginOptions, defaultUsername, serverAddress string) (*registrytypes.AuthenticateOKBody, error) { + // Prompt user for credentials + authConfig, err := command.PromptUserForCredentials(ctx, dockerCli, opts.user, opts.password, defaultUsername, serverAddress) + if err != nil { + return nil, err + } + + response, err := loginWithRegistry(ctx, dockerCli, authConfig) + if err != nil { + return nil, err + } + + if response.IdentityToken != "" { + authConfig.Password = "" + authConfig.IdentityToken = response.IdentityToken + } + if err = storeCredentials(dockerCli, authConfig); err != nil { + return nil, err + } + + return &response, nil +} + +func loginWithDeviceCodeFlow(ctx context.Context, dockerCli command.Cli) (*registrytypes.AuthenticateOKBody, error) { + store := dockerCli.ConfigFile().GetCredentialsStore(registry.IndexServer) + authConfig, err := manager.NewManager(store).LoginDevice(ctx, dockerCli.Err()) + if err != nil { + return nil, err + } + + response, err := loginWithRegistry(ctx, dockerCli, registrytypes.AuthConfig(*authConfig)) + if err != nil { + return nil, err + } + + if err = storeCredentials(dockerCli, registrytypes.AuthConfig(*authConfig)); err != nil { + return nil, err + } + + return &response, nil +} + +func storeCredentials(dockerCli command.Cli, authConfig registrytypes.AuthConfig) error { + creds := dockerCli.ConfigFile().GetCredentialsStore(authConfig.ServerAddress) if err := creds.Store(configtypes.AuthConfig(authConfig)); err != nil { return errors.Errorf("Error saving credentials: %v", err) } - if response.Status != "" { - fmt.Fprintln(dockerCli.Out(), response.Status) - } return nil } -func loginWithCredStoreCreds(ctx context.Context, dockerCli command.Cli, authConfig *registrytypes.AuthConfig) (registrytypes.AuthenticateOKBody, error) { - fmt.Fprintf(dockerCli.Out(), "Authenticating with existing credentials...\n") - cliClient := dockerCli.Client() - response, err := cliClient.RegistryLogin(ctx, *authConfig) - if err != nil { - if errdefs.IsUnauthorized(err) { - fmt.Fprintf(dockerCli.Err(), "Stored credentials invalid or expired\n") - } else { - fmt.Fprintf(dockerCli.Err(), "Login did not succeed, error: %s\n", err) - } +func loginWithRegistry(ctx context.Context, dockerCli command.Cli, authConfig registrytypes.AuthConfig) (registrytypes.AuthenticateOKBody, error) { + response, err := dockerCli.Client().RegistryLogin(ctx, authConfig) + if err != nil && client.IsErrConnectionFailed(err) { + // If the server isn't responding (yet) attempt to login purely client side + response, err = loginClientSide(ctx, authConfig) } - return response, err + // If we (still) have an error, give up + if err != nil { + return registrytypes.AuthenticateOKBody{}, err + } + + return response, nil } func loginClientSide(ctx context.Context, auth registrytypes.AuthConfig) (registrytypes.AuthenticateOKBody, error) { diff --git a/cli/command/registry/login_test.go b/cli/command/registry/login_test.go index a6ee4a7f60..4c3003cf4b 100644 --- a/cli/command/registry/login_test.go +++ b/cli/command/registry/login_test.go @@ -74,7 +74,7 @@ func TestLoginWithCredStoreCreds(t *testing.T) { cli := test.NewFakeCli(&fakeClient{}) errBuf := new(bytes.Buffer) cli.SetErr(streams.NewOut(errBuf)) - loginWithCredStoreCreds(ctx, cli, &tc.inputAuthConfig) + loginWithStoredCredentials(ctx, cli, tc.inputAuthConfig) outputString := cli.OutBuffer().String() assert.Check(t, is.Equal(tc.expectedMsg, outputString)) errorString := errBuf.String() @@ -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/config/credentials/file_store.go b/cli/config/credentials/file_store.go index 6a093428fd..91c89fd04b 100644 --- a/cli/config/credentials/file_store.go +++ b/cli/config/credentials/file_store.go @@ -6,6 +6,7 @@ import ( "net/url" "os" "strings" + "sync/atomic" "github.com/docker/cli/cli/config/types" ) @@ -65,6 +66,10 @@ Configure a credential helper to remove this warning. See https://docs.docker.com/go/credential-store/ ` +// alreadyPrinted ensures that we only print the unencryptedWarning once per +// CLI invocation (no need to warn the user multiple times per command). +var alreadyPrinted atomic.Bool + // Store saves the given credentials in the file store. func (c *fileStore) Store(authConfig types.AuthConfig) error { authConfigs := c.file.GetAuthConfigs() @@ -73,11 +78,12 @@ func (c *fileStore) Store(authConfig types.AuthConfig) error { return err } - if authConfig.Password != "" { + if !alreadyPrinted.Load() && authConfig.Password != "" { // Display a warning if we're storing the users password (not a token). // // FIXME(thaJeztah): make output configurable instead of hardcoding to os.Stderr _, _ = fmt.Fprintln(os.Stderr, fmt.Sprintf(unencryptedWarning, c.file.GetFilename())) + alreadyPrinted.Store(true) } return nil 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..a39612a2a4 --- /dev/null +++ b/cli/internal/oauth/manager/manager.go @@ -0,0 +1,204 @@ +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/sirupsen/logrus" + + "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, + } +} + +var ErrDeviceLoginStartFail = errors.New("failed to start device code flow login") + +// 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 { + logrus.Debugf("failed to start device code login: %v", err) + return nil, ErrDeviceLoginStartFail + } + + if state.UserCode == "" { + logrus.Debugf("failed to start device code login: missing user code") + return nil, ErrDeviceLoginStartFail + } + + _, _ = 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 d88d614109..3f5c262b9a 100644 --- a/vendor.mod +++ b/vendor.mod @@ -18,6 +18,7 @@ require ( github.com/docker/go-connections v0.5.0 github.com/docker/go-units v0.5.0 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 v0.3.0 // 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 f93db574b1..577ebe3bf8 100644 --- a/vendor.sum +++ b/vendor.sum @@ -83,6 +83,8 @@ github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMo 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= @@ -356,16 +372,33 @@ 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 v0.0.0-20220520151302-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= @@ -375,6 +408,8 @@ 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/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. 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. 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