Commit Graph

2 Commits

Author SHA1 Message Date
5e50330bdf feat: Implement PKCE authentication for IndieLogin.com
This fixes critical IndieAuth authentication by implementing PKCE (Proof Key
for Code Exchange) as required by IndieLogin.com API specification.

Added:
- PKCE code_verifier and code_challenge generation (RFC 7636)
- Database column: auth_state.code_verifier for PKCE support
- Issuer validation for authentication callbacks
- Comprehensive PKCE unit tests (6 tests, all passing)
- Database migration script for code_verifier column

Changed:
- Corrected IndieLogin.com API endpoints (/authorize and /token)
- State token validation now returns code_verifier for token exchange
- Authentication flow follows IndieLogin.com API specification exactly
- Enhanced logging with code_verifier redaction

Removed:
- OAuth metadata endpoint (/.well-known/oauth-authorization-server)
  Added in v0.7.0 but not required by IndieLogin.com
- h-app microformats markup from templates
  Modified in v0.7.1 but not used by IndieLogin.com
- indieauth-metadata link from HTML head

Security:
- PKCE prevents authorization code interception attacks
- Issuer validation prevents token substitution attacks
- Code verifier securely stored, redacted in logs, and single-use

Documentation:
- Version: 0.8.0
- CHANGELOG updated with v0.8.0 entry and v0.7.x notes
- ADR-016 and ADR-017 marked as superseded by ADR-019
- Implementation report created in docs/reports/
- Test update guide created in TODO_TEST_UPDATES.md

Breaking Changes:
- Users mid-authentication will need to restart login after upgrade
- Database migration required before deployment

Related: ADR-019

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-19 15:43:38 -07:00
6a29b0199e Fix IndieAuth client discovery for production authentication
Add h-app microformats markup to base.html to enable IndieLogin.com
to verify StarPunk as a legitimate OAuth client. Without this markup,
IndieLogin returns "client_id is not registered" error, blocking all
production authentication.

The h-app markup provides client identification per IndieAuth legacy
standard, which is widely supported by authorization servers including
IndieLogin.com.

Changes:
- Add h-app microformats div to base.html footer (hidden)
- Update version to v0.6.1 (patch release per ADR-008)
- Update CHANGELOG.md with v0.6.1 release notes
- Add 6 comprehensive tests for h-app markup (all passing)
- Create ADR-016 documenting client discovery decision
- Create architecture analysis report
- Create implementation report

Tests: 456 total, 455 passing (99.78%)
New tests: 6 for h-app microformats (100% passing)

Fixes critical bug preventing production authentication.

Related: Phase 3 Authentication implementation, ADR-016

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-19 11:44:35 -07:00