archive/phase_reports/PHASE_5_COMPLETION_REPORT.md

Phase 5 — Completion Report

Date: 2026-06-15
Status: Implementation complete (requires Supabase project configuration)

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Summary

Phase 5 adds Supabase Authentication with Guest (anonymous) and Google OAuth, auth gate UI, account menu, profiles table migration, and offline fallback UX. Editor architecture unchanged except prerequisite XSS fixes.

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Authentication features

Feature	Status
Guest sign-in (signInAnonymously)	✅ Implemented
Google OAuth	✅ Implemented
Session restoration (getSession)	✅ Implemented
Logout	✅ Implemented
Guest → Google (linkIdentity)	✅ Implemented
Offline fallback	✅ Implemented
window.__bayanAuth facade	✅ Implemented

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Files created / modified

See PHASE_5_IMPLEMENTATION_PLAN.md.

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Security fixes (prerequisite)

Issue	Fix
Summary XSS	textContent / DOM append instead of raw innerHTML
Error message XSS	escapeHtml(error.message)
Tooltip title XSS	escapeHtml(suggestion.correction) in renderer.js title

Note: renderer.js received one-line security fix only — no rendering logic change.

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Configuration required before demo

1. Create Supabase project
2. Enable Anonymous + Google providers
3. Set redirect URLs
4. Run supabase/migrations/001_profiles.sql
5. Set meta tags in index.html:
   • supabase-url
   • supabase-anon-key

Without configuration, app enters offline auth mode — editor still works.

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Regression

Test	Result
node test_renderer.js	Run after deploy
selection.js unchanged	✅
Editor analyze path unchanged	✅
Document import/export unchanged	✅

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Known limitations

• No document persistence (Phase 6)
• Flask API still unauthenticated
• Profile display uses JWT user metadata; DB profile sync via trigger
• Google OAuth requires live network and correct redirect URLs

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Next steps (Phase 6)

• documents, summaries, settings tables
• RLS policies with auth.uid()
• Save/load editor content keyed to window.__bayanAuth.userId