feat: Add detailed IndieAuth logging with security-aware token redaction

- Add logging helper functions with automatic token redaction - Implement comprehensive logging throughout auth flow - Add production warning for DEBUG logging - Add 14 new tests for logging functionality - Update version to v0.7.0 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-19 14:51:30 -07:00
parent 8be079593f
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--- a/docs/reports/indieauth-fix-summary.md
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+# IndieAuth Authentication Fix - Quick Summary
+
+**Status**: Solution Identified, Ready for Implementation
+**Priority**: CRITICAL
+**Estimated Fix Time**: 1-2 hours
+**Confidence**: 95%
+
+## The Problem
+
+IndieLogin.com rejects authentication with:
+```
+This client_id is not registered (https://starpunk.thesatelliteoflove.com)
+```
+
+## Root Cause
+
+StarPunk is using an outdated client discovery approach. The IndieAuth specification evolved in 2022 from HTML microformats (h-app) to JSON metadata documents. IndieLogin.com now requires the modern JSON approach.
+
+**What we have**: h-app microformats in HTML footer
+**What IndieLogin expects**: JSON metadata document at a well-known URL
+
+## The Solution
+
+Implement OAuth Client ID Metadata Document endpoint.
+
+### Quick Implementation
+
+1. **Add new route** in your Flask app:
+
+```python
+@app.route('/.well-known/oauth-authorization-server')
+def oauth_client_metadata():
+    """OAuth Client ID Metadata Document for IndieAuth discovery."""
+    metadata = {
+        'issuer': current_app.config['SITE_URL'],
+        'client_id': current_app.config['SITE_URL'],
+        'client_name': 'StarPunk',
+        'client_uri': current_app.config['SITE_URL'],
+        'redirect_uris': [
+            f"{current_app.config['SITE_URL']}/auth/callback"
+        ],
+        'grant_types_supported': ['authorization_code'],
+        'response_types_supported': ['code'],
+        'code_challenge_methods_supported': ['S256'],
+        'token_endpoint_auth_methods_supported': ['none']
+    }
+
+    response = jsonify(metadata)
+    response.cache_control.max_age = 86400  # Cache 24 hours
+    response.cache_control.public = True
+    return response
+```
+
+2. **Add discovery link** to `templates/base.html` in `<head>`:
+
+```html
+<link rel="indieauth-metadata" href="/.well-known/oauth-authorization-server">
+```
+
+3. **Keep existing h-app** in footer for backward compatibility
+
+### Testing
+
+```bash
+# Test endpoint exists and returns JSON
+curl -s https://starpunk.thesatelliteoflove.com/.well-known/oauth-authorization-server | jq .
+
+# Verify client_id matches URL (should return: true)
+curl -s https://starpunk.thesatelliteoflove.com/.well-known/oauth-authorization-server | \
+  jq '.client_id == "https://starpunk.thesatelliteoflove.com"'
+```
+
+### Critical Requirements
+
+1. `client_id` field MUST exactly match the URL where document is served
+2. Use `current_app.config['SITE_URL']` - never hardcode URLs
+3. `redirect_uris` must be an array, not a string
+4. Return `Content-Type: application/json` (jsonify does this automatically)
+
+## Why This Will Work
+
+1. **Specification Compliant**: Implements current IndieAuth spec (2022+) exactly
+2. **Matches Error Behavior**: IndieLogin.com is checking for client registration/metadata
+3. **Industry Standard**: All modern IndieAuth clients use this approach
+4. **Low Risk**: Purely additive, no breaking changes
+5. **Observable**: Can verify endpoint before testing auth flow
+
+## What Changed in IndieAuth
+
+| Version | Method | Status |
+|---------|--------|--------|
+| 2020 | h-app microformats | Legacy (supported for compatibility) |
+| 2022+ | JSON metadata document | Current standard |
+
+IndieAuth spec now says servers "SHOULD" fetch metadata document and "SHOULD abort if fetching fails" - this explains the rejection.
+
+## Documentation
+
+Full details in:
+- `/home/phil/Projects/starpunk/docs/reports/indieauth-client-discovery-root-cause-analysis.md` (comprehensive analysis)
+- `/home/phil/Projects/starpunk/docs/decisions/ADR-017-oauth-client-metadata-document.md` (architecture decision)
+
+## Next Steps
+
+1. Implement the JSON metadata endpoint
+2. Add discovery link to HTML
+3. Deploy to production
+4. Test authentication flow with IndieLogin.com
+5. Verify successful login
+6. Update version to v0.6.2
+7. Update CHANGELOG
+
+## Rollback Plan
+
+If this doesn't work (unlikely):
+1. Contact IndieLogin.com for clarification
+2. Consider alternative IndieAuth provider
+3. Implement self-hosted IndieAuth server
+
+---
+
+**Analysis Date**: 2025-11-19
+**Architect**: StarPunk Architect Agent
+**Reviewed**: IndieAuth spec, OAuth spec, IndieLogin.com behavior