Consolidates invocations of `coderdtest.New` to a single shared instance per
parent for the following tests:
- `TestOAuth2ClientMetadataValidation`
- `TestOAuth2ClientNameValidation`
- `TestOAuth2ClientScopeValidation`
- `TestOAuth2ClientMetadataEdgeCases`
> 🤖 This PR was created with the help of Coder Agents, and was
reviewed by my human. 🧑💻
Add comprehensive OAuth2 enum types to codersdk following RFC specifications:
- OAuth2ProviderGrantType (RFC 6749)
- OAuth2ProviderResponseType (RFC 6749)
- OAuth2TokenEndpointAuthMethod (RFC 7591)
- OAuth2PKCECodeChallengeMethod (RFC 7636)
- OAuth2TokenType (RFC 6749, RFC 9449)
- OAuth2RevocationTokenTypeHint (RFC 7009)
- OAuth2ErrorCode (RFC 6749, RFC 7009, RFC 8707)
Add OAuth2TokenRequest, OAuth2TokenResponse, OAuth2TokenRevocationRequest,
and OAuth2Error structs to the SDK. Update OAuth2ClientRegistrationRequest,
OAuth2ClientRegistrationResponse, OAuth2ClientConfiguration, and
OAuth2AuthorizationServerMetadata to use typed enums instead of raw strings.
This makes codersdk the single source of truth for OAuth2 types, eliminating
duplication between SDK and server-side structs.
Closes#21476
# Implement OAuth2 Dynamic Client Registration (RFC 7591/7592)
This PR implements OAuth2 Dynamic Client Registration according to RFC 7591 and Client Configuration Management according to RFC 7592. These standards allow OAuth2 clients to register themselves programmatically with Coder as an authorization server.
Key changes include:
1. Added database schema extensions to support RFC 7591/7592 fields in the `oauth2_provider_apps` table
2. Implemented `/oauth2/register` endpoint for dynamic client registration (RFC 7591)
3. Added client configuration management endpoints (RFC 7592):
- GET/PUT/DELETE `/oauth2/clients/{client_id}`
- Registration access token validation middleware
4. Added comprehensive validation for OAuth2 client metadata:
- URI validation with support for custom schemes for native apps
- Grant type and response type validation
- Token endpoint authentication method validation
5. Enhanced developer documentation with:
- RFC compliance guidelines
- Testing best practices to avoid race conditions
- Systematic debugging approaches for OAuth2 implementations
The implementation follows security best practices from the RFCs, including proper token handling, secure defaults, and appropriate error responses. This enables third-party applications to integrate with Coder's OAuth2 provider capabilities programmatically.
Cian Johnston