Feeds: Glocke je Blog (Benachrichtigung bei neuen Posts)

- Source.notify; ein neuer Post wird beim Eintreffen markiert (Item.notify),
  nie beim ersten Abruf eines Blogs, nie älter als 2 Tage
- GET /feeds/notifications/?after=<id>: ungelesene markierte Posts von Blogs mit
  Glocke nach der zuletzt gesehenen id; ohne after nur der Startpunkt
- Glocken-Schalter in der Blog-Leiste und in den Einstellungen des Blogs;
  window.__dioraFeedsOpenItem öffnet einen Post (Antippen der Benachrichtigung)
- sw v94

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

feeds/migrations/0004_item_notify.py

@@ -0,0 +1,18 @@
+# Generated by Django 6.1 on 2026-10-04 19:33
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('feeds', '0003_blog_flags_words'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='item',
+            name='notify',
+            field=models.BooleanField(db_index=True, default=False),
+        ),
+    ]

feeds/models.py

@@ -88,6 +88,9 @@ class Item(models.Model):
     paywalled = models.BooleanField(default=False)
     image_url = models.URLField(max_length=2000, blank=True)
     words = models.PositiveIntegerField(default=0)   # of the content: the reading time
+    # To be announced (a blog with the bell on): set when the item came in, not on a
+    # source's first fetch and not for posts older than refresh.NOTIFY_MAX_AGE.
+    notify = models.BooleanField(default=False, db_index=True)
     read_at = models.DateTimeField(null=True, blank=True)
     starred = models.BooleanField(default=False)
     story = models.ForeignKey(Story, null=True, blank=True, on_delete=models.SET_NULL, related_name='items')

feeds/refresh.py

@@ -25,6 +25,7 @@ BLOG_KEEP = 1000             # items kept per blog
 BLOG_FIRST_UNREAD_DAYS = 7   # a new blog's older articles start out read
 UNDATED_FIRST_UNREAD = 3     # of a new feed without dates, only the first few
 GONE_KEEP_DAYS = 30          # expired news rows kept (without text) against re-adding
+NOTIFY_MAX_AGE = timedelta(days=2)  # older posts are never announced (feeds dig up old ones)
 
 
 def settings_for(user):
@@ -91,6 +92,8 @@ def _apply(source, result, now, keep_days):
         if source.kind == Source.BLOG and first and (
                 old_undated or fields['published'] < now - timedelta(days=BLOG_FIRST_UNREAD_DAYS)):
             item.read_at = now
+        # The bell: never for what a first fetch brings, never for old posts.
+        item.notify = source.notify and not first and not undated and fields['published'] >= now - NOTIFY_MAX_AGE
         new.append(item)
     if new:
         try:

feeds/tests.py

@@ -334,3 +334,29 @@ class BlogFeedTest(TestCase):
         self.assertTrue(self.by_id()[self.rare.id]['fav'])
         favs = [i['title'] for i in self.client.get('/feeds/blogs/?fav=1').json()['items']]
         self.assertEqual(favs, ['Rare essay'])
+
+
+class NotifyTest(TestCase):
+    def setUp(self):
+        self.u = User.objects.create_user('tester', password='pw12345678')
+        self.client.force_login(self.u)
+        self.src = Source.objects.create(user=self.u, url='https://example.org/feed', title='Blog', kind='blog', notify=True)
+
+    def fetch(self, items):
+        with mock.patch('feeds.refresh._fetch_feed', return_value=fetched(rss(items))):
+            refresh.refresh([self.src])
+
+    def test_rules(self):
+        old = (timezone.now() - timedelta(days=5)).strftime('%a, %d %b %Y %H:%M:%S +0000')
+        self.fetch([{'guid': 'a', 'title': 'Schon da', 'text': LONG}])           # first fetch: never
+        start = self.client.get('/feeds/notifications/').json()
+        self.assertEqual(start['items'], [])
+        self.fetch([{'guid': 'a', 'title': 'Schon da', 'text': LONG},
+                    {'guid': 'b', 'title': 'Neuer Post', 'text': LONG},
+                    {'guid': 'c', 'title': 'Alter Post', 'text': LONG, 'date': old}])
+        got = self.client.get(f"/feeds/notifications/?after={start['last']}").json()
+        self.assertEqual([i['title'] for i in got['items']], ['Neuer Post'])
+        # Seen up to there: nothing again; read or bell off: nothing either.
+        self.assertEqual(self.client.get(f"/feeds/notifications/?after={got['last']}").json()['items'], [])
+        Source.objects.filter(pk=self.src.pk).update(notify=False)
+        self.assertEqual(self.client.get(f"/feeds/notifications/?after={start['last']}").json()['items'], [])

feeds/urls.py

@@ -21,6 +21,7 @@ urlpatterns = [
     path('items/<int:pk>/', views.item, name='feeds_item'),
     path('items/<int:pk>/star/', views.star, name='feeds_star'),
     path('settings/', views.settings, name='feeds_settings'),
+    path('notifications/', views.notifications, name='feeds_notifications'),
     path('logins/', views.save_login, name='feeds_save_login'),
     path('logins/delete/', views.delete_login, name='feeds_delete_login'),
 ]

feeds/views.py

@@ -19,6 +19,8 @@ Items:     GET  /feeds/items/<id>/            the article (fetches the page if t
            POST /feeds/items/<id>/star/       {starred}
            GET  /feeds/starred/
 Settings:  POST /feeds/settings/              {news_keep_days}
+Notices:   GET  /feeds/notifications/?after=<item id>   new posts of blogs with the bell on (devices
+                                              remember the last id; without after: only that id)
 Logins:    POST /feeds/logins/                {source, username, password}  subscriber login for its site
            POST /feeds/logins/delete/         {source}
 """
@@ -477,6 +479,24 @@ def star(request, pk):
     return JsonResponse({'updated': n})
 
 
+@csrf_exempt
+@require_http_methods(['GET'])
+def notifications(request):
+    """What a device should announce: posts marked when they came in, still
+    unread, of blogs that still have the bell on, after the id the device saw
+    last. Without `after` (a device's first time) nothing, only where to start."""
+    if (err := _auth(request)):
+        return err
+    qs = Item.objects.filter(user=request.user, notify=True)
+    last = qs.order_by('-id').values_list('id', flat=True).first() or 0
+    after = request.GET.get('after', '')
+    if not after.isdigit():
+        return JsonResponse({'items': [], 'last': last})
+    items = (qs.filter(id__gt=int(after), read_at=None, gone=False, source__notify=True)
+             .select_related('source').order_by('-published')[:50])
+    return JsonResponse({'items': [_item_data(i) for i in items], 'last': last})
+
+
 @csrf_exempt
 @require_http_methods(['POST'])
 def save_login(request):

static/js/feeds.js

@@ -327,6 +327,8 @@
         '<button type="button" class="fd-chip' + (one.fav ? ' on' : '') + '" data-flag="fav" data-id="' + one.id + '">' + (one.fav ? '★ Favorit' : '☆ Favorit') + '</button>' +
         '<button type="button" class="fd-chip' + (one.hidden ? ' on' : '') + '" data-flag="hidden" data-id="' + one.id + '" title="Nicht unter „Alle“, nur im Ordner">' +
         (one.hidden ? 'Im Hauptfeed ausgeblendet' : 'Im Hauptfeed ausblenden') + '</button>' +
+        '<button type="button" class="fd-chip' + (one.notify ? ' on' : '') + '" data-flag="notify" data-id="' + one.id + '" title="Benachrichtigung bei neuen Posts (App)">' +
+        (one.notify ? '🔔 Glocke an' : '🔕 Glocke') + '</button>' +
         '<button type="button" class="fd-chip" data-edit-open="' + one.id + '">⚙</button></div>';
     }
     if (!st.items.length) return h + '<p class="fd-note">' + (st.loading ? 'Lädt …' : (st.blogUnread ? 'Alles gelesen.' : 'Keine Artikel.')) + '</p>';
@@ -383,7 +385,7 @@
       '<section class="fd-box"><h3>' + title + ' <small>' + list.length + '</small></h3>' +
       list.map(x => x.id === st.editing ? editForm(x) :
         '<button type="button" class="fd-src" data-edit="' + x.id + '">' +
-        '<span class="fd-src-title">' + (x.fav ? '★ ' : '') + esc(x.title) + (x.hidden ? ' <small class="fd-note">ausgeblendet</small>' : '') + '</span>' +
+        '<span class="fd-src-title">' + (x.fav ? '★ ' : '') + (x.notify ? '🔔 ' : '') + esc(x.title) + (x.hidden ? ' <small class="fd-note">ausgeblendet</small>' : '') + '</span>' +
         '<span class="fd-row-meta">' + (x.kind === 'news' ? esc(x.category || 'Allgemein') + ' · ' : (x.category ? esc(x.category) + ' · ' : '')) +
         (x.unread ? x.unread + ' ungelesen' : '') +
         (x.error_count >= 3 ? ' <span class="fd-warn" title="' + esc(x.last_error) + '">⚠ Abruf schlägt fehl</span>' : '') +
@@ -410,7 +412,8 @@
       '<div class="fd-grid"><label>Art ' + kindSelect('kind', x.kind) + '</label>' +
       '<label class="fd-cat-field">' + (x.kind === 'news' ? 'Ressort' : 'Ordner') + ' ' + categoryInput(x.category) + '</label>' +
       (x.kind === 'blog' ? '<label class="fd-check"><input type="checkbox" name="fav"' + (x.fav ? ' checked' : '') + '> Favorit</label>' +
-        '<label class="fd-check"><input type="checkbox" name="hidden"' + (x.hidden ? ' checked' : '') + '> Im Hauptfeed ausblenden (nur im Ordner)</label>' : '') +
+        '<label class="fd-check"><input type="checkbox" name="hidden"' + (x.hidden ? ' checked' : '') + '> Im Hauptfeed ausblenden (nur im Ordner)</label>' +
+        '<label class="fd-check"><input type="checkbox" name="notify"' + (x.notify ? ' checked' : '') + '> Benachrichtigen bei neuen Posts</label>' : '') +
       '<label>Ganzer Artikel <select class="search-input" name="fulltext">' +
       [['auto', 'Automatisch'], ['always', 'Immer holen'], ['never', 'Nur Feed-Text']].map(o =>
         '<option value="' + o[0] + '"' + (x.fulltext === o[0] ? ' selected' : '') + '>' + o[1] + '</option>').join('') +
@@ -834,6 +837,7 @@
         const change = {title: f.title.value, kind: f.kind.value, category: f.category.value, fulltext: f.fulltext.value};
         if (f.fav) change.fav = f.fav.checked;
         if (f.hidden) change.hidden = f.hidden.checked;
+        if (f.notify) change.notify = f.notify.checked;
         await api('/feeds/sources/' + f.dataset.id + '/', change);
         st.editing = null;
         await loadState();
@@ -867,6 +871,12 @@
     const [state, briefing] = await Promise.all([api('/feeds/state/'), api('/feeds/briefing/')]);
     return {state, briefing};
   };
+  // A notification about a new post was tapped (the app, MainActivity): open it.
+  window.__dioraFeedsOpenItem = function (id) {
+    showTab('feeds');
+    readerList = st.items;
+    openItem(id, null);
+  };
   window.__dioraFeedsOpenStory = function (story) {
     if (!st.stories.some(x => x.id === story.id)) st.stories.push(story);
     openStory(story.id);

static/js/sw.js

@@ -2,7 +2,7 @@
  * diora service worker — caches the app shell for offline use.
  */
 
-const CACHE = 'diora-v93';
+const CACHE = 'diora-v94';
 const SHELL = [
   '/static/css/app.css',
   '/static/js/app.js',