{"record":{"id":"eb74047aa8c6c105","repo":"Tencent/WeKnora","slug":"failed-to-generate-state-w","errorCode":null,"errorMessage":"failed to generate state: %w","messagePattern":"failed to generate state: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/mcp/oauth_manager.go","lineNumber":129,"sourceCode":"\t\t}\n\t\tif err := m.repo.SaveClient(ctx, &types.MCPOAuthClient{\n\t\t\tTenantID:    tenantID,\n\t\t\tServiceID:   service.ID,\n\t\t\tClientID:    clientID,\n\t\t\tRedirectURI: redirectURI,\n\t\t}); err != nil {\n\t\t\tlogger.GetLogger(ctx).Warnf(\"failed to persist MCP oauth client: %v\", err)\n\t\t}\n\t}\n\n\tverifier, err := transport.GenerateCodeVerifier()\n\tif err != nil {\n\t\treturn \"\", \"\", fmt.Errorf(\"failed to generate PKCE verifier: %w\", err)\n\t}\n\tchallenge := transport.GenerateCodeChallenge(verifier)\n\tstate, err := transport.GenerateState()\n\tif err != nil {\n\t\treturn \"\", \"\", fmt.Errorf(\"failed to generate state: %w\", err)\n\t}\n\n\tauthURL, err := h.GetAuthorizationURL(ctx, state, challenge)\n\tif err != nil {\n\t\treturn \"\", \"\", fmt.Errorf(\"failed to build authorization URL: %w\", err)\n\t}\n\n\tif err := m.states.Put(ctx, state, OAuthState{\n\t\tTenantID:         tenantID,\n\t\tUserID:           principal.StorageID(),\n\t\tPrincipal:        principal,\n\t\tServiceID:        service.ID,\n\t\tCodeVerifier:     verifier,\n\t\tClientID:         h.GetClientID(),\n\t\tRedirectURI:      redirectURI,\n\t\tFrontendRedirect: frontendRedirect,\n\t}); err != nil {\n\t\treturn \"\", \"\", fmt.Errorf(\"failed to persist authorization state: %w\", err)","sourceCodeStart":111,"sourceCodeEnd":147,"githubUrl":"https://github.com/Tencent/WeKnora/blob/988cbb03305e055d8ebb7d46d9ac6cc0803cd074/internal/mcp/oauth_manager.go#L111-L147","documentation":"Returned by StartAuthorization when transport.GenerateState fails to produce the OAuth CSRF state token (typically entropy/source failure in the OAuth library). Without a state token the authorization-code flow cannot start securely, so the flow aborts before building the auth URL.","triggerScenarios":"Thrown at internal/mcp/oauth_manager.go:129 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Check the system's cryptographic entropy source (crypto/rand availability)","Retry the authorization start; the failure is usually transient","Inspect the OAuth transport library version for known issues"],"exampleFix":null,"handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"988cbb03305e055d8ebb7d46d9ac6cc0803cd074","analyzedAt":"2026-09-02T14:41:08.344Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}