Files
StarPunk/templates/base.html
Phil Skentelbery 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- ADR-016 and ADR-017 marked as superseded by ADR-019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

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-19 15:43:38 -07:00

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HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{% block title %}StarPunk{% endblock %}</title>
<link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
<link rel="alternate" type="application/rss+xml" title="{{ config.SITE_NAME }} RSS Feed" href="{{ url_for('public.feed', _external=True) }}">
{% block head %}{% endblock %}
</head>
<body>
{% if config.DEV_MODE %}
<div class="dev-mode-warning">
WARNING: DEVELOPMENT MODE - Authentication bypassed
</div>
{% endif %}
<header>
<h1><a href="/">StarPunk</a></h1>
<nav>
<a href="/">Home</a>
<a href="{{ url_for('public.feed') }}">RSS</a>
{% if g.me %}
<a href="{{ url_for('admin.dashboard') }}">Admin</a>
{% endif %}
</nav>
</header>
<main>
{% with messages = get_flashed_messages(with_categories=true) %}
{% if messages %}
{% for category, message in messages %}
<div class="flash flash-{{ category }}">{{ message }}</div>
{% endfor %}
{% endif %}
{% endwith %}
{% block content %}{% endblock %}
</main>
<footer>
<p>StarPunk v{{ config.get('VERSION', '0.5.0') }}</p>
</footer>
</body>
</html>