{"record":{"id":"f6a6d991f758697f","repo":"dagger/dagger","slug":"generate-pkce-w-f6a6d9","errorCode":null,"errorMessage":"generate PKCE: %w","messagePattern":"generate PKCE: %w","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/cmd/dagger/llmconfig/oauth_openai.go","lineNumber":37,"sourceCode":"\n// var (not a const) so tests can point it at a local server, mirroring the\n// ConfigRoot/ConfigFile override pattern.\nvar openaiTokenURL = \"https://auth.openai.com/oauth/token\" //nolint:gosec // OAuth token endpoint URL, not a credential\n\n// OpenAITokenResponse represents the OpenAI token endpoint response.\ntype OpenAITokenResponse struct {\n\tAccessToken  string `json:\"access_token\"`\n\tRefreshToken string `json:\"refresh_token\"`\n\tExpiresIn    int    `json:\"expires_in\"`\n}\n\n// GenerateOpenAIOAuthURL generates a PKCE-protected OAuth authorization URL\n// for OpenAI Codex (ChatGPT subscription).\n// Returns the URL, the PKCE verifier, and the state parameter.\nfunc GenerateOpenAIOAuthURL() (authURL, verifier, state string, err error) {\n\tverifier, challenge, err := generatePKCE()\n\tif err != nil {\n\t\treturn \"\", \"\", \"\", fmt.Errorf(\"generate PKCE: %w\", err)\n\t}\n\n\tbuf := make([]byte, 16)\n\tif _, err := rand.Read(buf); err != nil {\n\t\treturn \"\", \"\", \"\", fmt.Errorf(\"generate state: %w\", err)\n\t}\n\tstate = hex.EncodeToString(buf)\n\n\tparams := url.Values{\n\t\t\"response_type\":              {\"code\"},\n\t\t\"client_id\":                  {openaiClientID},\n\t\t\"redirect_uri\":               {openaiRedirectURI},\n\t\t\"scope\":                      {openaiScopes},\n\t\t\"code_challenge\":             {challenge},\n\t\t\"code_challenge_method\":      {\"S256\"},\n\t\t\"state\":                      {state},\n\t\t\"id_token_add_organizations\": {\"true\"},\n\t\t\"codex_cli_simplified_flow\":  {\"true\"},","sourceCodeStart":19,"sourceCodeEnd":55,"githubUrl":"https://github.com/dagger/dagger/blob/82ba2681dbe30d3547a1dc50ea495900ab5b6047/internal/cmd/dagger/llmconfig/oauth_openai.go#L19-L55","documentation":"This error wraps any failure from generatePKCE() while building the PKCE-protected OAuth authorization URL for OpenAI Codex (ChatGPT subscription) login. PKCE generation uses crypto/rand to create a random verifier and S256 challenge, so it only fails when the system's cryptographic randomness source is unavailable. It is thrown in GenerateOpenAIOAuthURL before the auth URL is constructed.","triggerScenarios":"Calling GenerateOpenAIOAuthURL (via `dagger llm` / interactive setup choosing OpenAI Codex OAuth) when crypto/rand.Read inside generatePKCE returns an error.","commonSituations":"Nearly always an OS-level entropy/crypto problem: a sandboxed or seccomp-restricted environment blocking getrandom(2), a broken /dev/urandom in a container, or an exotic OS build with a failing RNG.","solutions":["Retry the command; rand failures are typically transient environment faults","Check that /dev/urandom exists and is readable (e.g. `ls -l /dev/urandom`, `cat /dev/urandom | head -c 16 | xxd`) in the container/VM","Remove seccomp/AppArmor rules or run the process with a profile that permits getrandom(2)","Update the OS or container base image; crypto/rand failing on a healthy Linux/macOS is otherwise unheard of"],"exampleFix":null,"handlingStrategy":"retry","validationCode":"if _, err := rand.Read(make([]byte, 16)); err != nil { return fmt.Errorf(\"crypto/rand unavailable: %w\", err) }","typeGuard":null,"tryCatchPattern":"if err != nil {\n  if errors.Is(err, syscall.ENOSYS) || errors.Is(err, os.ErrPermission) {\n    // entropy source blocked: surface env guidance, don't blind-retry\n  }\n  return fmt.Errorf(\"generate PKCE: %w\", err)\n}","preventionTips":["Run dagger in environments where getrandom(2)/dev/urandom are permitted","Avoid hardened seccomp profiles on interactive setup containers","Treat crypto/rand failures as host-health signals, not code bugs"],"tags":["oauth","pkce","crypto-rand","openai"],"backgroundTag":"pkce-generation-failed","analyzedSha":"82ba2681dbe30d3547a1dc50ea495900ab5b6047","analyzedAt":"2026-09-05T07:21:37.930Z","contentChangedAt":"2026-09-05T07:21:37.930Z","schemaVersion":2},"datasetVersion":"2026-09-12T12:17:11.808Z"}