1 files changed, 145 insertions, 0 deletions
diff --git a/synapse/storage/user_directory.py b/synapse/storage/user_directory.py
new file mode 100644
index 0000000000..6c7c8c4bee
--- /dev/null
+++ b/synapse/storage/user_directory.py
@@ -0,0 +1,145 @@
+# -*- coding: utf-8 -*-
+# Copyright 2017 Vector Creations Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from twisted.internet import defer
+
+from ._base import SQLBaseStore
+from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
+from synapse.api.constants import EventTypes, JoinRules
+from synapse.storage.engines import PostgresEngine, Sqlite3Engine
+
+
+class UserDirectoryStore(SQLBaseStore):
+
+    @cachedInlineCallbacks(cache_context=True)
+    def is_room_world_readable_or_publicly_joinable(self, room_id, cache_context):
+        current_state_ids = yield self.get_current_state_ids(
+            room_id, on_invalidate=cache_context.invalidate
+        )
+
+        join_rules_id = current_state_ids.get((EventTypes.JoinRules, ""))
+        if join_rules_id:
+            join_rule_ev = yield self.get_event(join_rules_id, allow_none=True)
+            if join_rule_ev:
+                if join_rule_ev.content.get("join_rules") == JoinRules.PUBLIC:
+                    defer.returnValue(True)
+
+        hist_vis_id = current_state_ids.get((EventTypes.RoomHistoryVisibility, ""))
+        if hist_vis_id:
+            hist_vis_ev = yield self.get_event(hist_vis_id, allow_none=True)
+            if hist_vis_ev:
+                if hist_vis_ev.content.get("history_visibility") == "world_readable":
+                    defer.returnValue(True)
+
+        defer.returnValue(False)
+
+    def add_profiles_to_user_dir(self, room_id, users_with_profile):
+        if isinstance(self.database_engine, PostgresEngine):
+            sql = """
+                INSERT INTO user_directory
+                    (user_id, room_id, display_name, avatar_url, vector)
+                VALUES (?,?,?,?,to_tsvector('english', ?))
+            """
+        elif isinstance(self.database_engine, Sqlite3Engine):
+            sql = """
+                INSERT INTO user_directory
+                    (user_id, room_id, display_name, avatar_url, value)
+                VALUES (?,?,?,?,?)
+            """
+        else:
+            # This should be unreachable.
+            raise Exception("Unrecognized database engine")
+
+        def _add_profiles_to_user_dir_txn(txn):
+            txn.executemany(sql, (
+                (
+                    user_id, room_id, p.display_name, p.avatar_url,
+                    "%s %s" % (user_id, p.display_name,) if p.display_name else user_id
+                )
+                for user_id, p in users_with_profile.iteritems()
+            ))
+            for user_id in users_with_profile:
+                txn.call_after(
+                    self.get_user_in_directory.invalidate, (user_id,)
+                )
+
+        return self.runInteraction(
+            "add_profiles_to_user_dir", _add_profiles_to_user_dir_txn
+        )
+
+    @defer.inlineCallbacks
+    def remove_from_user_dir(self, user_id):
+        yield self._simple_delete(
+            table="user_directory",
+            keyvalues={"user_id": user_id},
+            desc="remove_from_user_dir",
+        )
+        self.get_user_in_directory.invalidate((user_id,))
+
+    def get_all_rooms(self):
+        return self._simple_select_onecol(
+            table="current_state_events",
+            keyvalues={},
+            retcol="DISTINCT room_id",
+            desc="get_all_rooms",
+        )
+
+    def delete_all_from_user_dir(self):
+        def _delete_all_from_user_dir_txn(txn):
+            txn.execute("DELETE FROM user_directory")
+            txn.call_after(self.get_user_in_directory.invalidate_all)
+        return self.runInteraction(
+            "delete_all_from_user_dir", _delete_all_from_user_dir_txn
+        )
+
+    @cached()
+    def get_user_in_directory(self, user_id):
+        return self._simple_select_one(
+            table="user_directory",
+            keyvalues={"user_id": user_id},
+            retcols=("room_id", "display_name", "avatar_url",),
+            allow_none=True,
+            desc="get_user_in_directory",
+        )
+
+    def get_user_directory_stream_pos(self):
+        return self._simple_select_one_onecol(
+            table="user_directory_stream_pos",
+            keyvalues={},
+            retcol="stream_id",
+            desc="get_user_directory_stream_pos",
+        )
+
+    def update_user_directory_stream_pos(self, stream_id):
+        return self._simple_update_one(
+            table="user_directory_stream_pos",
+            keyvalues={},
+            updatevalues={"stream_id": stream_id},
+            desc="update_user_directory_stream_pos",
+        )
+
+    def get_current_state_deltas(self, prev_stream_id):
+        # TODO: Add stream change cache
+        # TODO: Add limit
+        sql = """
+            SELECT stream_id, room_id, type, state_key, event_id, prev_event_id
+            FROM current_state_delta_stream
+            WHERE stream_id > ?
+            ORDER BY stream_id ASC
+        """
+
+        return self._execute(
+            "get_current_state_deltas", self.cursor_to_dict, sql, prev_stream_id
+        )