New notifications

- Added request.notifications
- Email configuration fixes
  - Set config_spec default SMTP port to `0` and switch to SSL/non-SSL
    default if `port == 0`
  - Added email_smtp_use_ssl configuration setting
- Added migrations for notification tables
- Added __repr__ to MediaComment(Mixin)
- Added MediaComment.get_entry => MediaEntry
- Added CommentSubscription, CommentNotification, Notification,
  ProcessingNotification tables
- Added notifications.task to celery init
- Fixed a bug in the video transcoder where pygst would hijack the
  --help argument.
- Added notifications
  - views
    - silence
    - subscribe
  - routes
  - utility methods
  - celery task
- Added half-hearted .active comment CSS style
- Added quick JS to show header_dropdown
- Added fragment template to show notifications in header_dropdown
- Added fragment template to show subscribe/unsubscribe buttons on
  media/comment pages
- Updated celery setup tests with notifications.task
- Tried to fix test_misc tests that I broke
- Added notification tests
- Added and extended tests.tools fixtures
- Integrated new notifications into media_home, media_post_comment views
- Bumped SQLAlchemy dependency to >= 0.8.0 since we need polymorphic for
  the notifications to work

1 files changed, 46 insertions, 0 deletions

diff --git a/mediagoblin/notifications/task.py b/mediagoblin/notifications/task.py
new file mode 100644
index 00000000..52573b57
--- /dev/null
+++ b/mediagoblin/notifications/task.py
@@ -0,0 +1,46 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+
+from celery import registry
+from celery.task import Task
+
+from mediagoblin.tools.mail import send_email
+from mediagoblin.db.models import CommentNotification
+
+
+_log = logging.getLogger(__name__)
+
+
+class EmailNotificationTask(Task):
+    '''
+    Celery notification task.
+
+    This task is executed by celeryd to offload long-running operations from
+    the web server.
+    '''
+    def run(self, notification_id, message):
+        cn = CommentNotification.query.filter_by(id=notification_id).first()
+        _log.info('Sending notification email about {0}'.format(cn))
+
+        return send_email(
+            message['from'],
+            [message['to']],
+            message['subject'],
+            message['body'])
+
+email_notification_task = registry.tasks[EmailNotificationTask.name]