Phase 4: Web Push notifications (pywebpush + VAPID)

Backend: PushSubscription model/migration, VAPID config + `cli.py generate-vapid-keys`, push_service.send_push_to_user (upsert-by-endpoint subscribe/unsubscribe, auto-cleanup of expired 404/410 subscriptions), /api/push/* router, and ConnectionManager now tracks connected user IDs per room so chat.py can push only to offline members after broadcasting to online ones. Two test-infra bugs found and fixed along the way: send_push_to_user takes the caller's AsyncSession and is awaited inline rather than fired via asyncio.create_task with its own session (background tasks were outliving the test event loop); and the ws_client fixture now uses NullPool to eliminate a connection-pool checkout race that was failing WS tests intermittently. Frontend: service worker rebuilt with vite-plugin-pwa's injectManifest strategy (custom src/sw.ts) so it can add push/notificationclick handlers alongside the existing precaching and StaleWhileRevalidate routes ported over from generateSW. New subscribe/unsubscribe flow (lib/push.ts, api/push.ts) with a toggle in the account menu. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-14 06:53:07 -06:00
parent aeb2f3f6a5
commit d09bf4a30a
27 changed files with 876 additions and 95 deletions
@@ -0,0 +1,45 @@
+"""push subscriptions
+
+Revision ID: 8a55c5254edb
+Revises: 0699d20789b3
+Create Date: 2026-08-14 06:24:35.973594
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '8a55c5254edb'
+down_revision: Union[str, Sequence[str], None] = '0699d20789b3'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('push_subscriptions',
+    sa.Column('id', sa.Uuid(), nullable=False),
+    sa.Column('user_id', sa.Uuid(), nullable=False),
+    sa.Column('endpoint', sa.String(length=1024), nullable=False),
+    sa.Column('p256dh_key', sa.String(length=255), nullable=False),
+    sa.Column('auth_key', sa.String(length=255), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_push_subscriptions_endpoint'), 'push_subscriptions', ['endpoint'], unique=True)
+    op.create_index(op.f('ix_push_subscriptions_user_id'), 'push_subscriptions', ['user_id'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_push_subscriptions_user_id'), table_name='push_subscriptions')
+    op.drop_index(op.f('ix_push_subscriptions_endpoint'), table_name='push_subscriptions')
+    op.drop_table('push_subscriptions')
+    # ### end Alembic commands ###