feat: notify mobile operators of unread updates (Closes #549)

README.md

@@ -187,6 +187,14 @@ export STACKCHAIN_PASSKEY_MAX_CHALLENGES=10000
 export STACKCHAIN_LOGIN_ATTEMPT_DB='/var/lib/stackchain-dashboard/login-attempts.sqlite3'
 # Trust forwarding headers only from these immediate reverse-proxy networks.
 export STACKCHAIN_TRUSTED_PROXY_CIDRS='127.0.0.0/8'
+# Optional Web Push. Generate a VAPID key pair outside the repo and inject it.
+# The feature stays disabled unless all three values are present.
+export STACKCHAIN_VAPID_PUBLIC_KEY='<url-safe-public-key>'
+export STACKCHAIN_VAPID_PRIVATE_KEY='<private-key-from-secret-manager>'
+export STACKCHAIN_VAPID_SUBJECT='mailto:ops@example.com'
+# Optional; defaults to 30 seconds and STACKCHAIN_STATE_DIR/push-subscriptions.sqlite3.
+export STACKCHAIN_PUSH_POLL_SECONDS=30
+export STACKCHAIN_PUSH_DB='/var/lib/stackchain-dashboard/push-subscriptions.sqlite3'
 uvicorn src.main:app --host 127.0.0.1 --port 8000
 ```
 

frontend/dashboard.css

@@ -81,6 +81,7 @@ textarea { resize: vertical; min-height: 120px; }
 .offline-status[hidden] { display:none; }
 .offline-work-controls { display:flex; gap:10px; align-items:center; flex-wrap:wrap; width:100%; padding-top:2px; }
 .offline-work-controls label { display:flex; gap:8px; align-items:center; min-height:44px; }
+.push-update-control { min-height:44px; }
 .offline-work-controls input { width:20px; height:20px; }
 .offline-work-controls button { min-height:44px; }
 .offline-today-readiness { display:flex; gap:8px; align-items:center; flex-wrap:wrap; }

frontend/dashboard.js

@@ -417,6 +417,7 @@
     document,
     urls: {
       'issue-capture': document.querySelector('meta[name="stackchain-feature-issue-capture"]')?.content || '',
+      'push-notifications': document.querySelector('meta[name="stackchain-feature-push-notifications"]')?.content || '',
     },
   });
   let sharedLaunchState = null;
@@ -5270,9 +5271,22 @@
     if (workSession.active()) workSession.reconcile();
   });
   if ('serviceWorker' in navigator) {
-    navigator.serviceWorker.register('service-worker.js').catch(error =>
+    navigator.serviceWorker.register('service-worker.js').then(async () => {
-      console.warn('Stackchain install support unavailable', error)
+      await issueCaptureFeatures.load('push-notifications');
-    );
+      return createPushNotifications({
+        control:qs('#push-updates'),
+        status:qs('#push-update-status'),
+        notification:window.Notification,
+        serviceWorker:navigator.serviceWorker,
+        fetchJson:fetchReviewJson,
+      }).init();
+    }).catch(error => {
+      qs('#push-update-status').textContent = 'Update notification settings unavailable.';
+      console.warn('Push notifications unavailable', error);
+    });
+  } else {
+    qs('#push-updates').disabled = true;
+    qs('#push-update-status').textContent = 'This browser does not support update notifications.';
   }
   const isIosDevice = /iPad|iPhone|iPod/.test(navigator.userAgent) ||
     (navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1);

frontend/index.html

@@ -97,6 +97,8 @@
           <div class="offline-work-controls">
             <label for="keep-work-offline"><input id="keep-work-offline" type="checkbox" /> Keep My Work available offline</label>
             <label for="delivery-receipts"><input id="delivery-receipts" type="checkbox" /> Notify me when queued work finishes</label>
+            <label class="push-update-control" for="push-updates"><input id="push-updates" type="checkbox" /> Notify me about new updates</label>
+            <span class="small" id="push-update-status" role="status" aria-live="polite"></span>
             <button id="clear-offline-work" type="button">Clear offline work data</button>
             <button id="retry-offline-storage" type="button" hidden>Retry offline saving</button>
             <span class="small" id="offline-work-status" role="status" aria-live="polite"></span>
@@ -777,6 +779,7 @@
 <script src="static/mobile-search-viewport.js"></script>
 <script src="static/mobile-composer-viewport.js"></script>
 <script src="static/mention-composer.js"></script>
+<script src="static/push-notifications.js"></script>
 <script src="static/dashboard.js"></script>
 </body>
 </html>

frontend/push-notifications.js

@@ -0,0 +1,79 @@
+(function(root, factory) {
+  if (typeof module === 'object' && module.exports) module.exports = factory;
+  else root.createPushNotifications = factory;
+})(typeof self !== 'undefined' ? self : this, function createPushNotifications({
+  control, status, notification, serviceWorker, fetchJson,
+}) {
+  let configuration = null;
+
+  function applicationServerKey(value) {
+    const padded = value.replace(/-/g, '+').replace(/_/g, '/') + '='.repeat((4 - value.length % 4) % 4);
+    if (typeof atob === 'function') {
+      return Uint8Array.from(atob(padded), character => character.charCodeAt(0));
+    }
+    return Uint8Array.from(Buffer.from(padded, 'base64'));
+  }
+
+  async function disable() {
+    const registration = await serviceWorker.ready;
+    const subscription = await registration.pushManager.getSubscription();
+    await fetchJson('api/v1/push-subscription', {method:'DELETE'});
+    await subscription?.unsubscribe?.();
+    control.checked = false;
+    status.textContent = 'New update notifications are off for this device.';
+  }
+
+  async function enable() {
+    const permission = await notification.requestPermission();
+    if (permission !== 'granted') {
+      control.checked = false;
+      status.textContent = 'Notifications are blocked. Allow them in your browser settings to enable updates.';
+      return;
+    }
+    const registration = await serviceWorker.ready;
+    let subscription = await registration.pushManager.getSubscription();
+    if (!subscription) {
+      subscription = await registration.pushManager.subscribe({
+        userVisibleOnly: true,
+        applicationServerKey: applicationServerKey(configuration.public_key),
+      });
+    }
+    await fetchJson('api/v1/push-subscription', {
+      method:'PUT',
+      headers:{'Content-Type':'application/json'},
+      body:JSON.stringify(subscription.toJSON()),
+    });
+    control.checked = true;
+    status.textContent = 'New update notifications enabled for this device.';
+  }
+
+  async function change() {
+    control.disabled = true;
+    try {
+      if (control.checked) await enable();
+      else await disable();
+    } catch (error) {
+      control.checked = !control.checked;
+      status.textContent = 'Could not change update notifications. Check your connection and try again.';
+    } finally {
+      control.disabled = false;
+    }
+  }
+
+  async function init() {
+    if (!control || !notification || !serviceWorker) return;
+    control.addEventListener('change', change);
+    configuration = await fetchJson('api/v1/push-subscription');
+    if (!configuration.available) {
+      control.disabled = true;
+      status.textContent = 'New update notifications are not available on this server.';
+      return;
+    }
+    control.checked = Boolean(configuration.subscribed);
+    status.textContent = configuration.subscribed
+      ? 'New update notifications enabled for this device.'
+      : 'New update notifications are off for this device.';
+  }
+
+  return {init, change};
+});

frontend/service-worker.js

@@ -63,6 +63,7 @@ const SHELL = [
   BASE + 'static/mobile-search-viewport.js',
   BASE + 'static/mobile-composer-viewport.js',
   BASE + 'static/mention-composer.js',
+  BASE + 'static/push-notifications.js',
   BASE + 'static/background-issue-sync.js',
 ];
 
@@ -268,6 +269,20 @@ self.addEventListener('message', event => {
   })());
 });
 
+self.addEventListener('push', event => {
+  let payload;
+  try { payload = event.data?.json?.() || {}; }
+  catch (_error) { return; }
+  const route = String(payload.route || '');
+  const tag = String(payload.tag || '');
+  if (!/^#\/my-work\/update\/\d+$/.test(route) || !/^stackchain-update-\d+$/.test(tag)) return;
+  event.waitUntil(self.registration.showNotification('New work update', {
+    body: 'Tap to review it in Stackchain.',
+    tag,
+    data: {route},
+  }));
+});
+
 self.addEventListener('notificationclick', event => {
   event.notification.close();
   const route = String(event.notification.data?.route || '');

requirements.txt

@@ -3,6 +3,7 @@ httpx==0.28.1
 pydantic==2.13.4
 python-multipart==0.0.22
 pytest==9.1.1
+pywebpush==2.1.2
 rjsmin==1.2.5
 uvicorn==0.41.0
 webauthn==3.0.0

src/frontend_bundle.py

@@ -19,6 +19,7 @@ WORKER_RUNTIME_SOURCE = "static/background-issue-sync.js"
 FEATURE_SOURCES = {
     "issue-capture": ("static/create-issue-sheet.js",),
     "pull-workflow": ("static/pull-sheet.js", "static/review-sheet.js"),
+    "push-notifications": ("static/push-notifications.js",),
 }
 CACHE_DECLARATION = re.compile(
     r"const CACHE = 'stackchain-dashboard-shell-(?:v\d+|[0-9a-f]{16})';"

src/main.py

@@ -47,6 +47,8 @@ from src.live_snapshot_store import (
 )
 from src.models import Issue, Milestone, PullRequest, Repo, User
 from src.passkey_store import PasskeyStore
+from src.push_notifications import PushConfiguration, dispatch_unread_updates
+from src.push_subscription_store import PushSubscriptionStore
 from src.request_boundary import RequestBodyLimitMiddleware, request_body_limit
 from src.security_event_store import SecurityEventStore, SecurityEventStoreError
 from src.suggestion_engine import compute
@@ -76,16 +78,37 @@ async def _drain_authored_action_operations() -> None:
                 _authored_action_operations.pop(key, None)
 
 
+async def _push_poll_loop() -> None:
+    interval = max(5.0, float(os.getenv("STACKCHAIN_PUSH_POLL_SECONDS", "30")))
+    while True:
+        await asyncio.sleep(interval)
+        try:
+            await dispatch_unread_updates(
+                _push_subscription_store,
+                _push_configuration(),
+                notifications,
+            )
+        except asyncio.CancelledError:
+            raise
+        except Exception:
+            # Gitea and push endpoints are external; one failed poll must not
+            # stop later delivery attempts.
+            continue
+
+
 @asynccontextmanager
 async def lifespan(_app: FastAPI):
-    global _live_snapshot_task, _available_issue_snapshot_task
+    global _live_snapshot_task, _available_issue_snapshot_task, _push_poll_task
     gitea_proxy.start_client()
+    if _push_configuration().enabled:
+        _push_poll_task = asyncio.create_task(_push_poll_loop())
     try:
         yield
     finally:
         live_task = _live_snapshot_task
         available_task = _available_issue_snapshot_task
-        for task in (live_task, available_task):
+        push_task = _push_poll_task
+        for task in (live_task, available_task, push_task):
             if task is not None and not task.done():
                 task.cancel()
                 try:
@@ -100,6 +123,8 @@ async def lifespan(_app: FastAPI):
                 _live_snapshot_task = None
             if _available_issue_snapshot_task is available_task:
                 _available_issue_snapshot_task = None
+            if _push_poll_task is push_task:
+                _push_poll_task = None
 
 
 app = FastAPI(title="Stackchain Dashboard", lifespan=lifespan)
@@ -135,6 +160,7 @@ AVAILABLE_ISSUE_SNAPSHOT_RETRY_SECONDS = 5.0
 AVAILABLE_ISSUE_SNAPSHOT_LEASE_SECONDS = WORK_PAGE_TIMEOUT_SECONDS + 1.0
 FRONTEND_DIR = Path(__file__).resolve().parent.parent / "frontend"
 _live_snapshot_task: asyncio.Task | None = None
+_push_poll_task: asyncio.Task | None = None
 _live_snapshot_value: dict | None = None
 _live_snapshot_created_at: float | None = None
 LIVE_SNAPSHOT_SECTIONS = ("context", "events", "notifications")
@@ -182,6 +208,17 @@ _available_issue_snapshot_store = AvailableIssueSnapshotStore(
         str(_state_dir / "available-issue-snapshot.sqlite3"),
     )
 )
+_push_subscription_store = PushSubscriptionStore(
+    os.getenv("STACKCHAIN_PUSH_DB", str(_state_dir / "push-subscriptions.sqlite3"))
+)
+
+
+def _push_configuration() -> PushConfiguration:
+    return PushConfiguration(
+        os.getenv("STACKCHAIN_VAPID_PUBLIC_KEY", "").strip(),
+        os.getenv("STACKCHAIN_VAPID_PRIVATE_KEY", "").strip(),
+        os.getenv("STACKCHAIN_VAPID_SUBJECT", "").strip(),
+    )
 
 
 class ContextPayloadError(ValueError):
@@ -205,6 +242,20 @@ class DashboardSignIn(BaseModel):
         return normalized
 
 
+class PushSubscriptionPayload(BaseModel):
+    endpoint: str = Field(min_length=12, max_length=2_048, pattern=r"^https://")
+    keys: dict[str, str]
+
+    @field_validator("keys")
+    @classmethod
+    def validate_push_keys(cls, value: dict[str, str]) -> dict[str, str]:
+        if set(value) != {"p256dh", "auth"} or any(
+            not item or len(item) > 1_024 for item in value.values()
+        ):
+            raise ValueError("Valid Web Push keys are required")
+        return value
+
+
 StepUpAction = Literal[
     "merge_pull",
     "submit_pull_review",
@@ -859,7 +910,7 @@ async def require_operator_session(request: Request, call_next):
 async def prevent_live_api_caching(request, call_next):
     response = await call_next(request)
     path = dashboard_auth.application_path(request)
-    if path in {"/api/v1/context", "/api/v1/background-identity", "/api/v1/events", "/api/v1/live", "/api/v1/available-issues", "/api/v1/search", "/api/v1/work-route", "/api/v1/today", "/api/v1/later", "/api/v1/security-events"} or path.startswith("/api/v1/work/") or (
+    if path in {"/api/v1/context", "/api/v1/background-identity", "/api/v1/events", "/api/v1/live", "/api/v1/available-issues", "/api/v1/search", "/api/v1/work-route", "/api/v1/today", "/api/v1/later", "/api/v1/security-events", "/api/v1/push-subscription"} or path.startswith("/api/v1/work/") or (
         path.startswith("/api/v1/repos/")
         and path.endswith("/review")
     ) or path.startswith("/api/v1/notifications") or (
@@ -1631,6 +1682,67 @@ async def session_status(request: Request):
     return payload
 
 
+@app.get("/api/v1/push-subscription")
+async def push_status(request: Request):
+    configuration = _push_configuration()
+    device_id = await dashboard_auth.session_management_id(
+        request.state.dashboard_session
+    )
+    subscribed = await asyncio.to_thread(
+        _push_subscription_store.is_subscribed,
+        device_id,
+    )
+    return {
+        "available": configuration.enabled,
+        "subscribed": subscribed,
+        "public_key": configuration.public_key if configuration.enabled else "",
+    }
+
+
+@app.put("/api/v1/push-subscription")
+async def subscribe_push(payload: PushSubscriptionPayload, request: Request):
+    if not _push_configuration().enabled:
+        raise HTTPException(status_code=503, detail="Push notifications are not configured")
+    device_id = await dashboard_auth.session_management_id(
+        request.state.dashboard_session
+    )
+    await asyncio.to_thread(
+        _push_subscription_store.upsert,
+        device_id,
+        payload.model_dump(),
+    )
+    try:
+        current = await asyncio.wait_for(notifications(), NOTIFICATION_PAGE_TIMEOUT_SECONDS)
+    except Exception as error:
+        await asyncio.to_thread(_push_subscription_store.delete_session, device_id)
+        raise HTTPException(
+            status_code=503,
+            detail="Unread updates are temporarily unavailable",
+            headers={"Retry-After": "1"},
+        ) from error
+    existing_ids = {
+        int(item["notification_id"])
+        for item in current.get("items", [])
+        if isinstance(item, dict) and str(item.get("notification_id", "")).isdigit()
+    }
+    await asyncio.to_thread(
+        _push_subscription_store.mark_delivered, device_id, existing_ids
+    )
+    return {"subscribed": True}
+
+
+@app.delete("/api/v1/push-subscription")
+async def unsubscribe_push(request: Request):
+    device_id = await dashboard_auth.session_management_id(
+        request.state.dashboard_session
+    )
+    await asyncio.to_thread(
+        _push_subscription_store.delete_session,
+        device_id,
+    )
+    return {"subscribed": False}
+
+
 @app.post("/api/v1/session/activity")
 async def record_session_activity(request: Request):
     session = request.state.dashboard_session
@@ -1776,6 +1888,10 @@ async def update_later_plan(payload: LaterOperation | LaterOperationBatch):
 @app.delete("/api/v1/session")
 async def sign_out(request: Request, response: Response):
     session = request.state.dashboard_session
+    try:
+        push_device_id = await dashboard_auth.session_management_id(session)
+    except (dashboard_auth.SessionStoreError, AttributeError):
+        push_device_id = None
     journal = _security_event_store()
     try:
         operation_id = await asyncio.to_thread(
@@ -1808,6 +1924,10 @@ async def sign_out(request: Request, response: Response):
         # successful revocation as failed merely because completion could not
         # be marked yet.
         pass
+    if push_device_id is not None:
+        await asyncio.to_thread(
+            _push_subscription_store.delete_session, push_device_id
+        )
     path = dashboard_auth.cookie_path(request)
     response.delete_cookie(
         dashboard_auth.SESSION_COOKIE,
@@ -1908,6 +2028,9 @@ async def revoke_active_device(
         )
     if not revoked:
         raise HTTPException(status_code=404, detail="Active device not found")
+    await asyncio.to_thread(
+        _push_subscription_store.delete_session, management_id
+    )
     try:
         await asyncio.to_thread(journal.finalize, operation_id)
     except SecurityEventStoreError:
@@ -1950,6 +2073,7 @@ async def sign_out_all_devices(
             status_code=503,
             headers={"Cache-Control": "no-store"},
         )
+    await asyncio.to_thread(_push_subscription_store.delete_all)
     try:
         await asyncio.to_thread(journal.finalize, operation_id)
     except SecurityEventStoreError:

src/push_notifications.py

@@ -0,0 +1,74 @@
+import asyncio
+import json
+from dataclasses import dataclass
+from typing import Awaitable, Callable
+
+from src.push_subscription_store import PushSubscriptionStore
+
+
+@dataclass(frozen=True)
+class PushConfiguration:
+    public_key: str
+    private_key: str
+    subject: str
+
+    @property
+    def enabled(self) -> bool:
+        return bool(self.public_key and self.private_key and self.subject)
+
+
+async def send_web_push(
+    subscription: dict, payload: str, configuration: PushConfiguration
+) -> None:
+    from pywebpush import webpush
+
+    await asyncio.to_thread(
+        webpush,
+        subscription_info=subscription,
+        data=payload,
+        vapid_private_key=configuration.private_key,
+        vapid_claims={"sub": configuration.subject},
+        ttl=300,
+    )
+
+
+async def dispatch_unread_updates(
+    store: PushSubscriptionStore,
+    configuration: PushConfiguration,
+    unread: Callable[[], Awaitable[dict]],
+    send: Callable[[dict, str], Awaitable[None]] | None = None,
+) -> int:
+    if not configuration.enabled:
+        return 0
+    page = await unread()
+    thread_ids = {
+        int(item["notification_id"])
+        for item in page.get("items", [])
+        if isinstance(item, dict) and str(item.get("notification_id", "")).isdigit()
+    }
+    count = 0
+    for delivery in store.claim_unseen(thread_ids):
+        for thread_id in delivery.thread_ids:
+            payload = json.dumps(
+                {
+                    "title": "New work update",
+                    "body": "Tap to review it in Stackchain.",
+                    "route": f"#/my-work/update/{thread_id}",
+                    "tag": f"stackchain-update-{thread_id}",
+                },
+                separators=(",", ":"),
+            )
+            try:
+                if send is None:
+                    await send_web_push(delivery.subscription, payload, configuration)
+                else:
+                    await send(delivery.subscription, payload)
+            except Exception as error:
+                status = getattr(getattr(error, "response", None), "status_code", None)
+                if status in {404, 410}:
+                    store.delete_session(delivery.session_id)
+                    break
+                raise
+            store.mark_delivered(delivery.session_id, (thread_id,))
+            count += 1
+    return count

src/push_subscription_store.py

@@ -0,0 +1,96 @@
+import json
+import sqlite3
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Iterable
+
+
+@dataclass(frozen=True)
+class PushDelivery:
+    session_id: str
+    subscription: dict
+    thread_ids: tuple[int, ...]
+
+
+class PushSubscriptionStore:
+    """Durable, device-bound Web Push subscriptions and delivery deduplication."""
+
+    def __init__(self, path: str | Path):
+        self.path = Path(path)
+        self.path.parent.mkdir(parents=True, exist_ok=True)
+        with self._connect() as connection:
+            connection.executescript(
+                """
+                CREATE TABLE IF NOT EXISTS push_subscriptions (
+                    session_id TEXT PRIMARY KEY,
+                    endpoint TEXT NOT NULL UNIQUE,
+                    subscription_json TEXT NOT NULL
+                );
+                CREATE TABLE IF NOT EXISTS push_deliveries (
+                    session_id TEXT NOT NULL,
+                    thread_id INTEGER NOT NULL,
+                    PRIMARY KEY (session_id, thread_id),
+                    FOREIGN KEY (session_id) REFERENCES push_subscriptions(session_id)
+                        ON DELETE CASCADE
+                );
+                """
+            )
+
+    def _connect(self):
+        connection = sqlite3.connect(self.path, timeout=2)
+        connection.execute("PRAGMA foreign_keys = ON")
+        return connection
+
+    def upsert(self, session_id: str, subscription: dict) -> None:
+        endpoint = subscription["endpoint"]
+        encoded = json.dumps(subscription, separators=(",", ":"), sort_keys=True)
+        with self._connect() as connection:
+            connection.execute("DELETE FROM push_subscriptions WHERE endpoint = ?", (endpoint,))
+            connection.execute("DELETE FROM push_subscriptions WHERE session_id = ?", (session_id,))
+            connection.execute(
+                "INSERT INTO push_subscriptions(session_id, endpoint, subscription_json) VALUES (?, ?, ?)",
+                (session_id, endpoint, encoded),
+            )
+
+    def delete_session(self, session_id: str) -> None:
+        with self._connect() as connection:
+            connection.execute("DELETE FROM push_subscriptions WHERE session_id = ?", (session_id,))
+
+    def delete_all(self) -> None:
+        with self._connect() as connection:
+            connection.execute("DELETE FROM push_subscriptions")
+
+    def is_subscribed(self, session_id: str) -> bool:
+        with self._connect() as connection:
+            return connection.execute(
+                "SELECT 1 FROM push_subscriptions WHERE session_id = ?", (session_id,)
+            ).fetchone() is not None
+
+    def claim_unseen(self, thread_ids: Iterable[int]) -> list[PushDelivery]:
+        candidates = tuple(sorted({int(value) for value in thread_ids if int(value) > 0}))
+        if not candidates:
+            return []
+        with self._connect() as connection:
+            rows = connection.execute(
+                "SELECT session_id, subscription_json FROM push_subscriptions ORDER BY session_id"
+            ).fetchall()
+            deliveries = []
+            for session_id, encoded in rows:
+                delivered = {
+                    row[0]
+                    for row in connection.execute(
+                        "SELECT thread_id FROM push_deliveries WHERE session_id = ?",
+                        (session_id,),
+                    )
+                }
+                unseen = tuple(value for value in candidates if value not in delivered)
+                if unseen:
+                    deliveries.append(PushDelivery(session_id, json.loads(encoded), unseen))
+            return deliveries
+
+    def mark_delivered(self, session_id: str, thread_ids: Iterable[int]) -> None:
+        with self._connect() as connection:
+            connection.executemany(
+                "INSERT OR IGNORE INTO push_deliveries(session_id, thread_id) VALUES (?, ?)",
+                ((session_id, int(thread_id)) for thread_id in thread_ids),
+            )

tests/test_frontend_bundle.py

@@ -45,7 +45,7 @@ def test_page_runtime_is_one_deterministic_content_addressed_bundle(tmp_path):
 def test_product_workflows_are_stable_lazy_feature_chunks(tmp_path):
     first = build_frontend(FRONTEND)
 
-    assert set(first.feature_bundles) == {"issue-capture", "pull-workflow"}
+    assert set(first.feature_bundles) == {"issue-capture", "pull-workflow", "push-notifications"}
     capture = first.feature_bundles["issue-capture"]
     pull_workflow = first.feature_bundles["pull-workflow"]
     assert b"function createIssueCapture" not in first.runtime_bytes

tests/test_push_frontend.py

@@ -0,0 +1,77 @@
+import json
+import subprocess
+from pathlib import Path
+
+
+MODULE = Path(__file__).parents[1] / "frontend" / "push-notifications.js"
+
+
+def run_scenario(script: str) -> dict:
+    harness = r"""
+const createPushNotifications = require(__MODULE__);
+const state = { prompts:0, requests:[], subscriptions:[], text:'' };
+const control = {
+  checked:false, disabled:false,
+  addEventListener:(_name, callback) => state.change = callback,
+};
+const status = {set textContent(value) { state.text = value; }, get textContent() { return state.text; }};
+const existing = {endpoint:'https://push.example/device', toJSON() { return {endpoint:this.endpoint, keys:{p256dh:'key',auth:'auth'}}; }};
+const registration = {pushManager:{
+  getSubscription: async () => state.current || null,
+  subscribe: async options => { state.subscriptions.push(options); state.current=existing; return existing; },
+}};
+const feature = createPushNotifications({
+  control, status,
+  notification: {permission:'default', requestPermission:async () => { state.prompts += 1; return state.permission || 'granted'; }},
+  serviceWorker: {ready:Promise.resolve(registration)},
+  fetchJson: async (url, options={}) => { state.requests.push([url,options.method || 'GET',options.body || '']); return state.server || {available:true,subscribed:false,public_key:'AQID'}; },
+});
+(async () => { __SCENARIO__ })().catch(error => { console.error(error); process.exit(1); });
+""".replace("__MODULE__", json.dumps(str(MODULE))).replace("__SCENARIO__", script)
+    completed = subprocess.run(
+        ["node", "-e", harness], capture_output=True, check=True, text=True
+    )
+    return json.loads(completed.stdout)
+
+
+def test_initialization_reports_availability_without_prompting_for_permission():
+    result = run_scenario("await feature.init(); process.stdout.write(JSON.stringify(state));")
+
+    assert result["prompts"] == 0
+    assert result["requests"] == [["api/v1/push-subscription", "GET", ""]]
+    assert result["text"] == "New update notifications are off for this device."
+
+
+def test_user_gesture_subscribes_device_and_reports_enabled_state():
+    result = run_scenario("""
+await feature.init();
+control.checked = true;
+await state.change();
+process.stdout.write(JSON.stringify(state));
+""")
+
+    assert result["prompts"] == 1
+    assert result["subscriptions"][0]["userVisibleOnly"] is True
+    assert result["requests"][-1][0:2] == ["api/v1/push-subscription", "PUT"]
+    assert json.loads(result["requests"][-1][2])["endpoint"] == "https://push.example/device"
+    assert result["text"] == "New update notifications enabled for this device."
+
+
+def test_mobile_dashboard_mounts_opt_in_and_precaches_its_controller():
+    root = MODULE.parents[1]
+    html = (root / "frontend" / "index.html").read_text()
+    dashboard = (root / "frontend" / "dashboard.js").read_text()
+    worker = (root / "frontend" / "service-worker.js").read_text()
+    css = (root / "frontend" / "dashboard.css").read_text()
+    requirements = (root / "requirements.txt").read_text()
+    readme = (root / "README.md").read_text()
+
+    assert 'id="push-updates"' in html
+    assert 'id="push-update-status"' in html
+    assert '<script src="static/push-notifications.js"></script>' in html
+    assert "createPushNotifications({" in dashboard
+    assert "BASE + 'static/push-notifications.js'" in worker
+    assert ".push-update-control" in css and "min-height:44px" in css
+    assert "pywebpush==" in requirements
+    assert "STACKCHAIN_VAPID_PUBLIC_KEY" in readme
+    assert "STACKCHAIN_VAPID_PRIVATE_KEY" in readme

tests/test_push_notifications.py

@@ -0,0 +1,166 @@
+import json
+from types import SimpleNamespace
+
+import pytest
+
+from src import main
+from src.push_notifications import PushConfiguration, dispatch_unread_updates
+from src.push_subscription_store import PushSubscriptionStore
+
+
+def test_subscription_store_delivers_each_unread_thread_once_per_device(tmp_path):
+    store = PushSubscriptionStore(tmp_path / "push.sqlite3")
+    subscription = {
+        "endpoint": "https://push.example/device-a",
+        "keys": {"p256dh": "public-key", "auth": "auth-secret"},
+    }
+
+    store.upsert("session-a", subscription)
+
+    first = store.claim_unseen({41, 42})
+    store.mark_delivered("session-a", first[0].thread_ids)
+    second = store.claim_unseen({41, 42})
+
+    assert [(item.session_id, item.thread_ids) for item in first] == [
+        ("session-a", (41, 42))
+    ]
+    assert second == []
+
+
+def test_replacing_subscription_resets_delivery_cursor_and_revocation_removes_device(tmp_path):
+    store = PushSubscriptionStore(tmp_path / "push.sqlite3")
+    original = {
+        "endpoint": "https://push.example/original",
+        "keys": {"p256dh": "old-key", "auth": "old-auth"},
+    }
+    replacement = {
+        "endpoint": "https://push.example/replacement",
+        "keys": {"p256dh": "new-key", "auth": "new-auth"},
+    }
+    store.upsert("session-a", original)
+    store.claim_unseen({9})
+
+    store.upsert("session-a", replacement)
+    delivery = store.claim_unseen({9})
+    store.delete_session("session-a")
+
+    assert delivery[0].subscription == replacement
+    assert delivery[0].thread_ids == (9,)
+    assert store.claim_unseen({10}) == []
+
+
+@pytest.mark.anyio
+async def test_dispatch_sends_one_privacy_safe_deep_link_per_new_thread(tmp_path):
+    store = PushSubscriptionStore(tmp_path / "push.sqlite3")
+    store.upsert("session-a", {
+        "endpoint": "https://push.example/device-a",
+        "keys": {"p256dh": "public-key", "auth": "auth-secret"},
+    })
+    sent = []
+
+    async def unread():
+        return {"items": [
+            {"notification_id": 42, "repository": "private/repo", "title": "Secret title"},
+        ]}
+
+    async def send(subscription, payload):
+        sent.append((subscription, json.loads(payload)))
+
+    config = PushConfiguration("public-vapid", "private-vapid", "mailto:ops@example.com")
+    assert await dispatch_unread_updates(store, config, unread, send) == 1
+    assert await dispatch_unread_updates(store, config, unread, send) == 0
+    assert sent[0][1] == {
+        "title": "New work update",
+        "body": "Tap to review it in Stackchain.",
+        "route": "#/my-work/update/42",
+        "tag": "stackchain-update-42",
+    }
+    assert "private/repo" not in json.dumps(sent)
+    assert "Secret title" not in json.dumps(sent)
+
+
+@pytest.mark.anyio
+async def test_dispatch_removes_an_expired_push_endpoint(tmp_path):
+    store = PushSubscriptionStore(tmp_path / "push.sqlite3")
+    store.upsert("session-a", {
+        "endpoint": "https://push.example/expired",
+        "keys": {"p256dh": "public-key", "auth": "auth-secret"},
+    })
+
+    class Expired(Exception):
+        response = SimpleNamespace(status_code=410)
+
+    async def unread():
+        return {"items": [{"notification_id": 8}]}
+
+    async def send(_subscription, _payload):
+        raise Expired()
+
+    config = PushConfiguration("public", "private", "mailto:ops@example.com")
+    assert await dispatch_unread_updates(store, config, unread, send) == 0
+    assert store.is_subscribed("session-a") is False
+
+
+@pytest.mark.anyio
+async def test_authenticated_device_can_subscribe_report_status_and_unsubscribe(tmp_path, monkeypatch):
+    store = PushSubscriptionStore(tmp_path / "push.sqlite3")
+    monkeypatch.setattr(main, "_push_subscription_store", store)
+    monkeypatch.setattr(
+        main,
+        "_push_configuration",
+        lambda: PushConfiguration("public-vapid", "private-vapid", "mailto:ops@example.com"),
+    )
+    async def management_id(_session):
+        return "session-a"
+
+    monkeypatch.setattr(main.dashboard_auth, "session_management_id", management_id)
+
+    async def no_unread():
+        return {"items": []}
+
+    monkeypatch.setattr(main, "notifications", no_unread)
+    request = SimpleNamespace(state=SimpleNamespace(
+        dashboard_session=SimpleNamespace(session_id="session-a")
+    ))
+    payload = main.PushSubscriptionPayload(
+        endpoint="https://push.example/device-a",
+        keys={"p256dh": "public-key", "auth": "auth-secret"},
+    )
+
+    assert await main.push_status(request) == {
+        "available": True, "subscribed": False, "public_key": "public-vapid"
+    }
+    assert await main.subscribe_push(payload, request) == {"subscribed": True}
+    assert (await main.push_status(request))["subscribed"] is True
+    assert await main.unsubscribe_push(request) == {"subscribed": False}
+    assert (await main.push_status(request))["subscribed"] is False
+
+
+@pytest.mark.anyio
+async def test_subscription_fails_closed_when_existing_unread_baseline_is_unavailable(tmp_path, monkeypatch):
+    store = PushSubscriptionStore(tmp_path / "push.sqlite3")
+    monkeypatch.setattr(main, "_push_subscription_store", store)
+    monkeypatch.setattr(
+        main, "_push_configuration",
+        lambda: PushConfiguration("public", "private", "mailto:ops@example.com"),
+    )
+
+    async def management_id(_session):
+        return "device-a"
+
+    async def unavailable():
+        raise RuntimeError("Gitea unavailable")
+
+    monkeypatch.setattr(main.dashboard_auth, "session_management_id", management_id)
+    monkeypatch.setattr(main, "notifications", unavailable)
+    request = SimpleNamespace(state=SimpleNamespace(dashboard_session=object()))
+    payload = main.PushSubscriptionPayload(
+        endpoint="https://push.example/device-a",
+        keys={"p256dh": "public-key", "auth": "auth-secret"},
+    )
+
+    with pytest.raises(main.HTTPException) as raised:
+        await main.subscribe_push(payload, request)
+
+    assert raised.value.status_code == 503
+    assert store.is_subscribed("device-a") is False

tests/test_service_worker.py

@@ -112,6 +112,14 @@ async function dispatchNotificationClick(route) {{
   }});
   if (pending) await pending;
 }}
+async function dispatchPush(payload) {{
+  let pending;
+  listeners.push({{
+    data: {{json: () => payload}},
+    waitUntil: promise => {{ pending = promise; }},
+  }});
+  if (pending) await pending;
+}}
 (async () => {{
 {scenario}
 }})().catch(error => {{ console.error(error); process.exit(1); }});
@@ -373,6 +381,33 @@ def test_opted_in_background_sync_notifies_privately_and_receipt_tap_focuses_rou
     assert result["notificationClosed"] is True
 
 
+def test_inbound_push_renders_generic_update_and_tap_opens_existing_workflow():
+    result = run_worker_scenario(
+        """
+  await dispatchPush({
+    title:'New work update', body:'Tap to review it in Stackchain.',
+    tag:'stackchain-update-42', route:'#/my-work/update/42',
+    repository:'must-not-render',
+  });
+  await dispatchNotificationClick('#/my-work/update/42');
+  process.stdout.write(JSON.stringify(state));
+"""
+    )
+
+    assert result["notifications"] == [{
+        "title": "New work update",
+        "options": {
+            "body": "Tap to review it in Stackchain.",
+            "tag": "stackchain-update-42",
+            "data": {"route": "#/my-work/update/42"},
+        },
+    }]
+    assert result["opened"] == [
+        "https://forge.example/dashboard/#/my-work/update/42"
+    ]
+    assert "must-not-render" not in json.dumps(result["notifications"])
+
+
 def test_background_mutations_obtain_session_bound_csrf_proof():
     source = WORKER.read_text()
 
@@ -470,6 +505,7 @@ def test_install_precaches_complete_subpath_scoped_app_shell():
         "/dashboard/static/mobile-search-viewport.js",
         "/dashboard/static/mobile-composer-viewport.js",
         "/dashboard/static/mention-composer.js",
+        "/dashboard/static/push-notifications.js",
         "/dashboard/static/background-issue-sync.js",
     }