Remove dead code.

Loading push rules now happens in the datastore, so we can remove
the methods that loaded them outside the datastore.

The ``waiting_for_join_list`` in federation handler is populated by
anything, so can be removed.

The ``_get_members_events_txn`` method isn't called from anywhere
so can be removed.

synapse/handlers/federation.py

@@ -66,10 +66,6 @@ class FederationHandler(BaseHandler):
 
         self.hs = hs
 
-        self.distributor.observe("user_joined_room", self.user_joined_room)
-
-        self.waiting_for_join_list = {}
-
         self.store = hs.get_datastore()
         self.replication_layer = hs.get_replication_layer()
         self.state_handler = hs.get_state_handler()
@@ -1091,15 +1087,6 @@ class FederationHandler(BaseHandler):
     def get_min_depth_for_context(self, context):
         return self.store.get_min_depth(context)
 
-    @log_function
-    def user_joined_room(self, user, room_id):
-        waiters = self.waiting_for_join_list.get(
-            (user.to_string(), room_id),
-            []
-        )
-        while waiters:
-            waiters.pop().callback(None)
-
     @defer.inlineCallbacks
     @log_function
     def _handle_new_event(self, origin, event, state=None, auth_events=None,

synapse/push/bulk_push_rule_evaluator.py

@@ -14,7 +14,6 @@
 # limitations under the License.
 
 import logging
-import ujson as json
 
 from twisted.internet import defer
 
@@ -27,13 +26,6 @@ from synapse.visibility import filter_events_for_clients
 logger = logging.getLogger(__name__)
 
 
-def decode_rule_json(rule):
-    rule = dict(rule)
-    rule['conditions'] = json.loads(rule['conditions'])
-    rule['actions'] = json.loads(rule['actions'])
-    return rule
-
-
 @defer.inlineCallbacks
 def _get_rules(room_id, user_ids, store):
     rules_by_user = yield store.bulk_get_push_rules(user_ids)

synapse/push/clientformat.py

@@ -13,37 +13,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from synapse.push.baserules import list_with_base_rules
-
 from synapse.push.rulekinds import (
     PRIORITY_CLASS_MAP, PRIORITY_CLASS_INVERSE_MAP
 )
 
 import copy
-import simplejson as json
-
-
-def load_rules_for_user(user, rawrules, enabled_map):
-    ruleslist = []
-    for rawrule in rawrules:
-        rule = dict(rawrule)
-        rule["conditions"] = json.loads(rawrule["conditions"])
-        rule["actions"] = json.loads(rawrule["actions"])
-        ruleslist.append(rule)
-
-    # We're going to be mutating this a lot, so do a deep copy
-    rules = list(list_with_base_rules(ruleslist))
-
-    for i, rule in enumerate(rules):
-        rule_id = rule['rule_id']
-        if rule_id in enabled_map:
-            if rule.get('enabled', True) != bool(enabled_map[rule_id]):
-                # Rules are cached across users.
-                rule = dict(rule)
-                rule['enabled'] = bool(enabled_map[rule_id])
-                rules[i] = rule
-
-    return rules
 
 
 def format_push_rules_for_user(user, ruleslist):

synapse/storage/roommember.py

@@ -243,13 +243,6 @@ class RoomMemberStore(SQLBaseStore):
         user_ids = yield self.get_users_in_room(room_id)
         defer.returnValue(set(get_domain_from_id(uid) for uid in user_ids))
 
-    def _get_members_events_txn(self, txn, room_id, membership=None, user_id=None):
-        rows = self._get_members_rows_txn(
-            txn,
-            room_id, membership, user_id,
-        )
-        return [r["event_id"] for r in rows]
-
     def _get_members_rows_txn(self, txn, room_id, membership=None, user_id=None):
         where_clause = "c.room_id = ?"
         where_values = [room_id]