patch by braph: refactor muc_online events into own plugin class

plugins/muc_online.py

@@ -0,0 +1,45 @@
+import logging
+
+import config
+from common import (
+    pluginfunction,
+    ptypes_MUC_ONLINE
+)
+
+log = logging.getLogger(__name__)
+
+
+@pluginfunction('send_record', 'delivers previously saved message to user', ptypes_MUC_ONLINE)
+def send_record(**args):
+    arg_user = args['reply_user']
+    arg_user_key = arg_user.lower()
+    user_records = config.runtimeconf_get('user_records')
+
+    if arg_user_key in user_records:
+        records = user_records[arg_user_key]
+
+        if not records:
+            return None
+
+        response = {
+            'msg':  '%s, there %s %d message%s for you:\n%s' % (
+                    arg_user,
+                    'is' if len(records) == 1 else 'are',
+                    len(records),
+                    '' if len(records) == 1 else 's',
+                    '\n'.join(records)
+                )
+        }
+
+        if config.conf_get('persistent_locked'):
+            log.warning("couldn't get exclusive lock")
+            return None
+
+        config.conf_set('persistent_locked', True)
+
+        user_records.pop(arg_user_key)
+        config.runtimeconf_persist()
+
+        config.conf_set('persistent_locked', False)
+
+        return response