#2727 Notifications - Fix "send test notification" on empty list, includes test (#2731)

changedetectionio/flask_app.py

@@ -67,7 +67,6 @@ FlaskCompress(app)
 
 # Stop browser caching of assets
 app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 0
-
 app.config.exit = Event()
 
 app.config['NEW_VERSION_AVAILABLE'] = False
@@ -470,7 +469,7 @@ def changedetection_app(config=None, datastore_o=None):
                     continue
             if watch.get('last_error'):
                 errored_count += 1
-                
+
             if search_q:
                 if (watch.get('title') and search_q in watch.get('title').lower()) or search_q in watch.get('url', '').lower():
                     sorted_watches.append(watch)
@@ -533,7 +532,7 @@ def changedetection_app(config=None, datastore_o=None):
     @login_optionally_required
     def ajax_callback_send_notification_test(watch_uuid=None):
 
-        # Watch_uuid could be unset in the case its used in tag editor, global setings
+        # Watch_uuid could be unset in the case it`s used in tag editor, global settings
         import apprise
         import random
         from .apprise_asset import asset
@@ -542,13 +541,15 @@ def changedetection_app(config=None, datastore_o=None):
         from changedetectionio.apprise_plugin import apprise_custom_api_call_wrapper
         is_global_settings_form = request.args.get('mode', '') == 'global-settings'
         is_group_settings_form = request.args.get('mode', '') == 'group-settings'
-
         # Use an existing random one on the global/main settings form
-        if not watch_uuid and (is_global_settings_form or is_group_settings_form):
+        if not watch_uuid and (is_global_settings_form or is_group_settings_form) \
+                and datastore.data.get('watching'):
+
             logger.debug(f"Send test notification - Choosing random Watch {watch_uuid}")
             watch_uuid = random.choice(list(datastore.data['watching'].keys()))
-
-        watch = datastore.data['watching'].get(watch_uuid)
+            watch = datastore.data['watching'].get(watch_uuid)
+        else:
+            watch = None
 
         notification_urls = request.form['notification_urls'].strip().splitlines()
 
@@ -1396,7 +1397,7 @@ def changedetection_app(config=None, datastore_o=None):
         url = request.form.get('url').strip()
         if datastore.url_exists(url):
             flash(f'Warning, URL {url} already exists', "notice")
-            
+
         add_paused = request.form.get('edit_and_watch_submit_button') != None
         processor = request.form.get('processor', 'text_json_diff')
         new_uuid = datastore.add_watch(url=url, tag=request.form.get('tags').strip(), extras={'paused': add_paused, 'processor': processor})

changedetectionio/tests/test_notification.py

@@ -429,3 +429,24 @@ def test_global_send_test_notification(client, live_server, measure_memory_usage
         follow_redirects=True
     )
 
+    #2727 - be sure a test notification when there are zero watches works ( should all be deleted now)
+
+    os.unlink("test-datastore/notification.txt")
+
+
+    ######### Test global/system settings
+    res = client.post(
+        url_for("ajax_callback_send_notification_test")+"?mode=global-settings",
+        data={"notification_urls": test_notification_url},
+        follow_redirects=True
+    )
+
+    assert res.status_code != 400
+    assert res.status_code != 500
+
+    # Give apprise time to fire
+    time.sleep(4)
+
+    with open("test-datastore/notification.txt", 'r') as f:
+        x = f.read()
+        assert 'change detection is cool 网站监测 内容更新了' in x

changedetectionio/update_worker.py

@@ -81,7 +81,8 @@ class update_worker(threading.Thread):
             'watch_url': watch.get('url') if watch else None,
         })
 
-        n_object.update(watch.extra_notification_token_values())
+        if watch:
+            n_object.update(watch.extra_notification_token_values())
 
         logger.trace(f"Main rendered notification placeholders (diff_added etc) calculated in {time.time()-now:.3f}s")
         logger.debug("Queued notification for sending")