Do not process posts from the this board, they could not be modified by anyone else

boards/management/commands/sync_with_server.py

@@ -6,7 +6,7 import httplib2
 from django.core.management import BaseCommand
 from django.utils.dateparse import parse_datetime
 
-from boards.models import GlobalId
+from boards.models import GlobalId, KeyPair
 from boards.models.post.sync import SyncManager, TAG_ID, TAG_UPDATE_TIME
 
 __author__ = 'neko259'
@@ -91,16 +91,24 class Command(BaseCommand):
                 for model in models:
                     tag_id = model.find(TAG_ID)
                     global_id, exists = GlobalId.from_xml_element(tag_id)
-                    tag_update_time = model.find(TAG_UPDATE_TIME)
-                    if tag_update_time:
-                        update_time = tag_update_time.text
+
+                    from_this_board = self._is_from_this_board(global_id)
+
+                    if from_this_board:
+                        # If the post originates from this board, no need to process
+                        # it again, nobody else could modify it
+                        logger.debug('* Processed (-) post {}'.format(global_id))
                     else:
-                        update_time = None
-                    if not exists or update_time is None or global_id.post.last_edit_time < parse_datetime(update_time):
-                        logger.debug('Processed (+) post {}'.format(global_id))
-                        ids_to_sync.append(global_id)
-                    else:
-                        logger.debug('* Processed (-) post {}'.format(global_id))
+                        tag_update_time = model.find(TAG_UPDATE_TIME)
+                        if tag_update_time:
+                            update_time = tag_update_time.text
+                        else:
+                            update_time = None
+                        if not exists or update_time is None or global_id.post.last_edit_time < parse_datetime(update_time):
+                            logger.debug('Processed (+) post {}'.format(global_id))
+                            ids_to_sync.append(global_id)
+                        else:
+                            logger.debug('* Processed (-) post {}'.format(global_id))
                 logger.info('Starting sync...')
 
                 if len(ids_to_sync) > 0:
@@ -119,3 +127,9 class Command(BaseCommand):
                     logger.info('Nothing to get, everything synced')
             else:
                 raise Exception('Invalid response status')
+
+    def _is_from_this_board(self, global_id):
+        from_this_board = KeyPair.objects.filter(
+            key_type=global_id.key_type,
+            public_key=global_id.key).exists()
+        return from_this_board

requirements.txt

@@ -4,7 +4,7 simplejson
 pytube
 requests
 pillow
-django>=1.8
+django>=1.8,<2.1
 bbcode
 django-debug-toolbar
 pytz