Merge branch 'release-v0.22.0' of github.com:matrix-org/synapse

CHANGES.rst

@@ -1,3 +1,59 @@
+Changes in synapse v0.22.0 (2017-07-06)
+=======================================
+
+No changes since v0.22.0-rc2
+
+
+Changes in synapse v0.22.0-rc2 (2017-07-04)
+===========================================
+
+Changes:
+
+* Improve performance of storing user IPs (PR #2307, #2308)
+* Slightly improve performance of verifying access tokens (PR #2320)
+* Slightly improve performance of event persistence (PR #2321)
+* Increase default cache factor size from 0.1 to 0.5 (PR #2330)
+
+Bug fixes:
+
+* Fix bug with storing registration sessions that caused frequent CPU churn
+  (PR #2319)
+
+
+Changes in synapse v0.22.0-rc1 (2017-06-26)
+===========================================
+
+Features:
+
+* Add a user directory API (PR #2252, and many more)
+* Add shutdown room API to remove room from local server (PR #2291)
+* Add API to quarantine media (PR #2292)
+* Add new config option to not send event contents to push servers (PR #2301)
+  Thanks to @cjdelisle!
+
+Changes:
+
+* Various performance fixes (PR #2177, #2233, #2230, #2238, #2248, #2256,
+  #2274)
+* Deduplicate sync filters (PR #2219) Thanks to @krombel!
+* Correct a typo in UPGRADE.rst (PR #2231) Thanks to @aaronraimist!
+* Add count of one time keys to sync stream (PR #2237)
+* Only store event_auth for state events (PR #2247)
+* Store URL cache preview downloads separately (PR #2299)
+
+Bug fixes:
+
+* Fix users not getting notifications when AS listened to that user_id (PR
+  #2216) Thanks to @slipeer!
+* Fix users without push set up not getting notifications after joining rooms
+  (PR #2236)
+* Fix preview url API to trim long descriptions (PR #2243)
+* Fix bug where we used cached but unpersisted state group as prev group,
+  resulting in broken state of restart (PR #2263)
+* Fix removing of pushers when using workers (PR #2267)
+* Fix CORS headers to allow Authorization header (PR #2285) Thanks to @krombel!
+
+
 Changes in synapse v0.21.1 (2017-06-15)
 =======================================
 

README.rst

@@ -528,6 +528,30 @@ fix try re-installing from PyPI or directly from
     # Install from github
     pip install --user https://github.com/pyca/pynacl/tarball/master
 
+Running out of File Handles
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If synapse runs out of filehandles, it typically fails badly - live-locking
+at 100% CPU, and/or failing to accept new TCP connections (blocking the
+connecting client).  Matrix currently can legitimately use a lot of file handles,
+thanks to busy rooms like #matrix:matrix.org containing hundreds of participating
+servers.  The first time a server talks in a room it will try to connect
+simultaneously to all participating servers, which could exhaust the available
+file descriptors between DNS queries & HTTPS sockets, especially if DNS is slow
+to respond.  (We need to improve the routing algorithm used to be better than
+full mesh, but as of June 2017 this hasn't happened yet).
+
+If you hit this failure mode, we recommend increasing the maximum number of
+open file handles to be at least 4096 (assuming a default of 1024 or 256).
+This is typically done by editing ``/etc/security/limits.conf``
+
+Separately, Synapse may leak file handles if inbound HTTP requests get stuck
+during processing - e.g. blocked behind a lock or talking to a remote server etc.
+This is best diagnosed by matching up the 'Received request' and 'Processed request'
+log lines and looking for any 'Processed request' lines which take more than
+a few seconds to execute.  Please let us know at #matrix-dev:matrix.org if
+you see this failure mode so we can help debug it, however.
+
 ArchLinux
 ~~~~~~~~~
 
@@ -875,12 +899,9 @@ cache a lot of recent room data and metadata in RAM in order to speed up
 common requests.  We'll improve this in future, but for now the easiest
 way to either reduce the RAM usage (at the risk of slowing things down)
 is to set the almost-undocumented ``SYNAPSE_CACHE_FACTOR`` environment
-variable.  Roughly speaking, a SYNAPSE_CACHE_FACTOR of 1.0 will max out
+variable.  The default is 0.5, which can be decreased to reduce RAM usage
-at around 3-4GB of resident memory - this is what we currently run the
+in memory constrained enviroments, or increased if performance starts to
-matrix.org on.  The default setting is currently 0.1, which is probably
+degrade.
-around a ~700MB footprint.  You can dial it down further to 0.02 if
-desired, which targets roughly ~512MB.  Conversely you can dial it up if
-you need performance for lots of users and have a box with a lot of RAM.
 
 
 .. _`key_management`: https://matrix.org/docs/spec/server_server/unstable.html#retrieving-server-keys

UPGRADE.rst

@@ -33,7 +33,7 @@ To check whether your update was sucessfull, run:
 
 .. code:: bash
 
-	 # replace your.server.domain with ther domain of your synaspe homeserver
+	 # replace your.server.domain with ther domain of your synapse homeserver
 	 curl https://<your.server.domain>/_matrix/federation/v1/version 
 
 So for the Matrix.org HS server the URL would be: https://matrix.org/_matrix/federation/v1/version.

scripts/synapse_port_db

@@ -41,6 +41,7 @@ BOOLEAN_COLUMNS = {
     "presence_stream": ["currently_active"],
     "public_room_list_stream": ["visibility"],
     "device_lists_outbound_pokes": ["sent"],
+    "users_who_share_rooms": ["share_private"],
 }
 
 
@@ -121,7 +122,7 @@ class Store(object):
                     try:
                         txn = conn.cursor()
                         return func(
-                            LoggingTransaction(txn, desc, self.database_engine, []),
+                            LoggingTransaction(txn, desc, self.database_engine, [], []),
                             *args, **kwargs
                         )
                     except self.database_engine.module.DatabaseError as e:

synapse/__init__.py

@@ -16,4 +16,4 @@
 """ This is a reference implementation of a Matrix home server.
 """
 
-__version__ = "0.21.1"
+__version__ = "0.22.0"

synapse/api/auth.py

@@ -23,7 +23,8 @@ from synapse import event_auth
 from synapse.api.constants import EventTypes, Membership, JoinRules
 from synapse.api.errors import AuthError, Codes
 from synapse.types import UserID
-from synapse.util import logcontext
+from synapse.util.caches import register_cache, CACHE_SIZE_FACTOR
+from synapse.util.caches.lrucache import LruCache
 from synapse.util.metrics import Measure
 
 logger = logging.getLogger(__name__)
@@ -39,6 +40,10 @@ AuthEventTypes = (
 GUEST_DEVICE_ID = "guest_device"
 
 
+class _InvalidMacaroonException(Exception):
+    pass
+
+
 class Auth(object):
     """
     FIXME: This class contains a mix of functions for authenticating users
@@ -51,6 +56,9 @@ class Auth(object):
         self.state = hs.get_state_handler()
         self.TOKEN_NOT_FOUND_HTTP_STATUS = 401
 
+        self.token_cache = LruCache(CACHE_SIZE_FACTOR * 10000)
+        register_cache("token_cache", self.token_cache)
+
     @defer.inlineCallbacks
     def check_from_context(self, event, context, do_sig_check=True):
         auth_events_ids = yield self.compute_auth_events(
@@ -144,17 +152,8 @@ class Auth(object):
     @defer.inlineCallbacks
     def check_host_in_room(self, room_id, host):
         with Measure(self.clock, "check_host_in_room"):
-            latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
+            latest_event_ids = yield self.store.is_host_joined(room_id, host)
-
+            defer.returnValue(latest_event_ids)
-            logger.debug("calling resolve_state_groups from check_host_in_room")
-            entry = yield self.state.resolve_state_groups(
-                room_id, latest_event_ids
-            )
-
-            ret = yield self.store.is_host_joined(
-                room_id, host, entry.state_group, entry.state
-            )
-            defer.returnValue(ret)
 
     def _check_joined_room(self, member, user_id, room_id):
         if not member or member.membership != Membership.JOIN:
@@ -209,7 +208,7 @@ class Auth(object):
                 default=[""]
             )[0]
             if user and access_token and ip_addr:
-                logcontext.preserve_fn(self.store.insert_client_ip)(
+                self.store.insert_client_ip(
                     user=user,
                     access_token=access_token,
                     ip=ip_addr,
@@ -276,8 +275,8 @@ class Auth(object):
             AuthError if no user by that token exists or the token is invalid.
         """
         try:
-            macaroon = pymacaroons.Macaroon.deserialize(token)
+            user_id, guest = self._parse_and_validate_macaroon(token, rights)
-        except Exception:  # deserialize can throw more-or-less anything
+        except _InvalidMacaroonException:
             # doesn't look like a macaroon: treat it as an opaque token which
             # must be in the database.
             # TODO: it would be nice to get rid of this, but apparently some
@@ -286,19 +285,8 @@ class Auth(object):
             defer.returnValue(r)
 
         try:
-            user_id = self.get_user_id_from_macaroon(macaroon)
             user = UserID.from_string(user_id)
 
-            self.validate_macaroon(
-                macaroon, rights, self.hs.config.expire_access_token,
-                user_id=user_id,
-            )
-
-            guest = False
-            for caveat in macaroon.caveats:
-                if caveat.caveat_id == "guest = true":
-                    guest = True
-
             if guest:
                 # Guest access tokens are not stored in the database (there can
                 # only be one access token per guest, anyway).
@@ -370,6 +358,55 @@ class Auth(object):
                 errcode=Codes.UNKNOWN_TOKEN
             )
 
+    def _parse_and_validate_macaroon(self, token, rights="access"):
+        """Takes a macaroon and tries to parse and validate it. This is cached
+        if and only if rights == access and there isn't an expiry.
+
+        On invalid macaroon raises _InvalidMacaroonException
+
+        Returns:
+            (user_id, is_guest)
+        """
+        if rights == "access":
+            cached = self.token_cache.get(token, None)
+            if cached:
+                return cached
+
+        try:
+            macaroon = pymacaroons.Macaroon.deserialize(token)
+        except Exception:  # deserialize can throw more-or-less anything
+            # doesn't look like a macaroon: treat it as an opaque token which
+            # must be in the database.
+            # TODO: it would be nice to get rid of this, but apparently some
+            # people use access tokens which aren't macaroons
+            raise _InvalidMacaroonException()
+
+        try:
+            user_id = self.get_user_id_from_macaroon(macaroon)
+
+            has_expiry = False
+            guest = False
+            for caveat in macaroon.caveats:
+                if caveat.caveat_id.startswith("time "):
+                    has_expiry = True
+                elif caveat.caveat_id == "guest = true":
+                    guest = True
+
+            self.validate_macaroon(
+                macaroon, rights, self.hs.config.expire_access_token,
+                user_id=user_id,
+            )
+        except (pymacaroons.exceptions.MacaroonException, TypeError, ValueError):
+            raise AuthError(
+                self.TOKEN_NOT_FOUND_HTTP_STATUS, "Invalid macaroon passed.",
+                errcode=Codes.UNKNOWN_TOKEN
+            )
+
+        if not has_expiry and rights == "access":
+            self.token_cache[token] = (user_id, guest)
+
+        return user_id, guest
+
     def get_user_id_from_macaroon(self, macaroon):
         """Retrieve the user_id given by the caveats on the macaroon.
 

synapse/app/client_reader.py

@@ -24,6 +24,7 @@ from synapse.http.server import JsonResource
 from synapse.metrics.resource import MetricsResource, METRICS_PREFIX
 from synapse.replication.slave.storage._base import BaseSlavedStore
 from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
+from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
 from synapse.replication.slave.storage.events import SlavedEventStore
 from synapse.replication.slave.storage.keys import SlavedKeyStore
 from synapse.replication.slave.storage.room import RoomStore
@@ -33,7 +34,6 @@ from synapse.replication.slave.storage.transactions import TransactionStore
 from synapse.replication.tcp.client import ReplicationClientHandler
 from synapse.rest.client.v1.room import PublicRoomListRestServlet
 from synapse.server import HomeServer
-from synapse.storage.client_ips import ClientIpStore
 from synapse.storage.engines import create_engine
 from synapse.util.httpresourcetree import create_resource_tree
 from synapse.util.logcontext import LoggingContext, PreserveLoggingContext
@@ -65,8 +65,8 @@ class ClientReaderSlavedStore(
     SlavedApplicationServiceStore,
     SlavedRegistrationStore,
     TransactionStore,
+    SlavedClientIpStore,
     BaseSlavedStore,
-    ClientIpStore,  # After BaseSlavedStore because the constructor is different
 ):
     pass
 

synapse/app/federation_sender.py

@@ -51,7 +51,7 @@ import sys
 import logging
 import gc
 
-logger = logging.getLogger("synapse.app.appservice")
+logger = logging.getLogger("synapse.app.federation_sender")
 
 
 class FederationSenderSlaveStore(

synapse/app/media_repository.py

@@ -23,13 +23,13 @@ from synapse.http.site import SynapseSite
 from synapse.metrics.resource import MetricsResource, METRICS_PREFIX
 from synapse.replication.slave.storage._base import BaseSlavedStore
 from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
+from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
 from synapse.replication.slave.storage.registration import SlavedRegistrationStore
 from synapse.replication.slave.storage.transactions import TransactionStore
 from synapse.replication.tcp.client import ReplicationClientHandler
 from synapse.rest.media.v0.content_repository import ContentRepoResource
 from synapse.rest.media.v1.media_repository import MediaRepositoryResource
 from synapse.server import HomeServer
-from synapse.storage.client_ips import ClientIpStore
 from synapse.storage.engines import create_engine
 from synapse.storage.media_repository import MediaRepositoryStore
 from synapse.util.httpresourcetree import create_resource_tree
@@ -60,10 +60,10 @@ logger = logging.getLogger("synapse.app.media_repository")
 class MediaRepositorySlavedStore(
     SlavedApplicationServiceStore,
     SlavedRegistrationStore,
+    SlavedClientIpStore,
     TransactionStore,
     BaseSlavedStore,
     MediaRepositoryStore,
-    ClientIpStore,
 ):
     pass
 

synapse/app/synchrotron.py

@@ -29,6 +29,7 @@ from synapse.rest.client.v1 import events
 from synapse.rest.client.v1.room import RoomInitialSyncRestServlet
 from synapse.rest.client.v1.initial_sync import InitialSyncRestServlet
 from synapse.replication.slave.storage._base import BaseSlavedStore
+from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
 from synapse.replication.slave.storage.events import SlavedEventStore
 from synapse.replication.slave.storage.receipts import SlavedReceiptsStore
 from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
@@ -42,7 +43,6 @@ from synapse.replication.slave.storage.devices import SlavedDeviceStore
 from synapse.replication.slave.storage.room import RoomStore
 from synapse.replication.tcp.client import ReplicationClientHandler
 from synapse.server import HomeServer
-from synapse.storage.client_ips import ClientIpStore
 from synapse.storage.engines import create_engine
 from synapse.storage.presence import UserPresenceState
 from synapse.storage.roommember import RoomMemberStore
@@ -77,9 +77,9 @@ class SynchrotronSlavedStore(
     SlavedPresenceStore,
     SlavedDeviceInboxStore,
     SlavedDeviceStore,
+    SlavedClientIpStore,
     RoomStore,
     BaseSlavedStore,
-    ClientIpStore,  # After BaseSlavedStore because the constructor is different
 ):
     who_forgot_in_room = (
         RoomMemberStore.__dict__["who_forgot_in_room"]

synapse/app/user_dir.py

@@ -0,0 +1,270 @@
+#!/usr/bin/env python
+# -*- 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.
+
+import synapse
+
+from synapse.server import HomeServer
+from synapse.config._base import ConfigError
+from synapse.config.logger import setup_logging
+from synapse.config.homeserver import HomeServerConfig
+from synapse.crypto import context_factory
+from synapse.http.site import SynapseSite
+from synapse.http.server import JsonResource
+from synapse.metrics.resource import MetricsResource, METRICS_PREFIX
+from synapse.replication.slave.storage._base import BaseSlavedStore
+from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
+from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
+from synapse.replication.slave.storage.events import SlavedEventStore
+from synapse.replication.slave.storage.registration import SlavedRegistrationStore
+from synapse.replication.tcp.client import ReplicationClientHandler
+from synapse.rest.client.v2_alpha import user_directory
+from synapse.storage.engines import create_engine
+from synapse.storage.user_directory import UserDirectoryStore
+from synapse.util.httpresourcetree import create_resource_tree
+from synapse.util.logcontext import LoggingContext, PreserveLoggingContext, preserve_fn
+from synapse.util.manhole import manhole
+from synapse.util.rlimit import change_resource_limit
+from synapse.util.versionstring import get_version_string
+from synapse.util.caches.stream_change_cache import StreamChangeCache
+
+from synapse import events
+
+from twisted.internet import reactor
+from twisted.web.resource import Resource
+
+from daemonize import Daemonize
+
+import sys
+import logging
+import gc
+
+logger = logging.getLogger("synapse.app.user_dir")
+
+
+class UserDirectorySlaveStore(
+    SlavedEventStore,
+    SlavedApplicationServiceStore,
+    SlavedRegistrationStore,
+    SlavedClientIpStore,
+    UserDirectoryStore,
+    BaseSlavedStore,
+):
+    def __init__(self, db_conn, hs):
+        super(UserDirectorySlaveStore, self).__init__(db_conn, hs)
+
+        events_max = self._stream_id_gen.get_current_token()
+        curr_state_delta_prefill, min_curr_state_delta_id = self._get_cache_dict(
+            db_conn, "current_state_delta_stream",
+            entity_column="room_id",
+            stream_column="stream_id",
+            max_value=events_max,  # As we share the stream id with events token
+            limit=1000,
+        )
+        self._curr_state_delta_stream_cache = StreamChangeCache(
+            "_curr_state_delta_stream_cache", min_curr_state_delta_id,
+            prefilled_cache=curr_state_delta_prefill,
+        )
+
+        self._current_state_delta_pos = events_max
+
+    def stream_positions(self):
+        result = super(UserDirectorySlaveStore, self).stream_positions()
+        result["current_state_deltas"] = self._current_state_delta_pos
+        return result
+
+    def process_replication_rows(self, stream_name, token, rows):
+        if stream_name == "current_state_deltas":
+            self._current_state_delta_pos = token
+            for row in rows:
+                self._curr_state_delta_stream_cache.entity_has_changed(
+                    row.room_id, token
+                )
+        return super(UserDirectorySlaveStore, self).process_replication_rows(
+            stream_name, token, rows
+        )
+
+
+class UserDirectoryServer(HomeServer):
+    def get_db_conn(self, run_new_connection=True):
+        # Any param beginning with cp_ is a parameter for adbapi, and should
+        # not be passed to the database engine.
+        db_params = {
+            k: v for k, v in self.db_config.get("args", {}).items()
+            if not k.startswith("cp_")
+        }
+        db_conn = self.database_engine.module.connect(**db_params)
+
+        if run_new_connection:
+            self.database_engine.on_new_connection(db_conn)
+        return db_conn
+
+    def setup(self):
+        logger.info("Setting up.")
+        self.datastore = UserDirectorySlaveStore(self.get_db_conn(), self)
+        logger.info("Finished setting up.")
+
+    def _listen_http(self, listener_config):
+        port = listener_config["port"]
+        bind_addresses = listener_config["bind_addresses"]
+        site_tag = listener_config.get("tag", port)
+        resources = {}
+        for res in listener_config["resources"]:
+            for name in res["names"]:
+                if name == "metrics":
+                    resources[METRICS_PREFIX] = MetricsResource(self)
+                elif name == "client":
+                    resource = JsonResource(self, canonical_json=False)
+                    user_directory.register_servlets(self, resource)
+                    resources.update({
+                        "/_matrix/client/r0": resource,
+                        "/_matrix/client/unstable": resource,
+                        "/_matrix/client/v2_alpha": resource,
+                        "/_matrix/client/api/v1": resource,
+                    })
+
+        root_resource = create_resource_tree(resources, Resource())
+
+        for address in bind_addresses:
+            reactor.listenTCP(
+                port,
+                SynapseSite(
+                    "synapse.access.http.%s" % (site_tag,),
+                    site_tag,
+                    listener_config,
+                    root_resource,
+                ),
+                interface=address
+            )
+
+        logger.info("Synapse user_dir now listening on port %d", port)
+
+    def start_listening(self, listeners):
+        for listener in listeners:
+            if listener["type"] == "http":
+                self._listen_http(listener)
+            elif listener["type"] == "manhole":
+                bind_addresses = listener["bind_addresses"]
+
+                for address in bind_addresses:
+                    reactor.listenTCP(
+                        listener["port"],
+                        manhole(
+                            username="matrix",
+                            password="rabbithole",
+                            globals={"hs": self},
+                        ),
+                        interface=address
+                    )
+            else:
+                logger.warn("Unrecognized listener type: %s", listener["type"])
+
+        self.get_tcp_replication().start_replication(self)
+
+    def build_tcp_replication(self):
+        return UserDirectoryReplicationHandler(self)
+
+
+class UserDirectoryReplicationHandler(ReplicationClientHandler):
+    def __init__(self, hs):
+        super(UserDirectoryReplicationHandler, self).__init__(hs.get_datastore())
+        self.user_directory = hs.get_user_directory_handler()
+
+    def on_rdata(self, stream_name, token, rows):
+        super(UserDirectoryReplicationHandler, self).on_rdata(
+            stream_name, token, rows
+        )
+        if stream_name == "current_state_deltas":
+            preserve_fn(self.user_directory.notify_new_event)()
+
+
+def start(config_options):
+    try:
+        config = HomeServerConfig.load_config(
+            "Synapse user directory", config_options
+        )
+    except ConfigError as e:
+        sys.stderr.write("\n" + e.message + "\n")
+        sys.exit(1)
+
+    assert config.worker_app == "synapse.app.user_dir"
+
+    setup_logging(config, use_worker_options=True)
+
+    events.USE_FROZEN_DICTS = config.use_frozen_dicts
+
+    database_engine = create_engine(config.database_config)
+
+    if config.update_user_directory:
+        sys.stderr.write(
+            "\nThe update_user_directory must be disabled in the main synapse process"
+            "\nbefore they can be run in a separate worker."
+            "\nPlease add ``update_user_directory: false`` to the main config"
+            "\n"
+        )
+        sys.exit(1)
+
+    # Force the pushers to start since they will be disabled in the main config
+    config.update_user_directory = True
+
+    tls_server_context_factory = context_factory.ServerContextFactory(config)
+
+    ps = UserDirectoryServer(
+        config.server_name,
+        db_config=config.database_config,
+        tls_server_context_factory=tls_server_context_factory,
+        config=config,
+        version_string="Synapse/" + get_version_string(synapse),
+        database_engine=database_engine,
+    )
+
+    ps.setup()
+    ps.start_listening(config.worker_listeners)
+
+    def run():
+        # make sure that we run the reactor with the sentinel log context,
+        # otherwise other PreserveLoggingContext instances will get confused
+        # and complain when they see the logcontext arbitrarily swapping
+        # between the sentinel and `run` logcontexts.
+        with PreserveLoggingContext():
+            logger.info("Running")
+            change_resource_limit(config.soft_file_limit)
+            if config.gc_thresholds:
+                gc.set_threshold(*config.gc_thresholds)
+            reactor.run()
+
+    def start():
+        ps.get_datastore().start_profiling()
+        ps.get_state_handler().start_caching()
+
+    reactor.callWhenRunning(start)
+
+    if config.worker_daemonize:
+        daemon = Daemonize(
+            app="synapse-user-dir",
+            pid=config.worker_pid_file,
+            action=run,
+            auto_close_fds=False,
+            verbose=True,
+            logger=logger,
+        )
+        daemon.start()
+    else:
+        run()
+
+
+if __name__ == '__main__':
+    with LoggingContext("main"):
+        start(sys.argv[1:])

synapse/appservice/__init__.py

@@ -241,6 +241,16 @@ class ApplicationService(object):
     def is_exclusive_room(self, room_id):
         return self._is_exclusive(ApplicationService.NS_ROOMS, room_id)
 
+    def get_exlusive_user_regexes(self):
+        """Get the list of regexes used to determine if a user is exclusively
+        registered by the AS
+        """
+        return [
+            regex_obj["regex"]
+            for regex_obj in self.namespaces[ApplicationService.NS_USERS]
+            if regex_obj["exclusive"]
+        ]
+
     def is_rate_limited(self):
         return self.rate_limited
 

synapse/config/homeserver.py

@@ -33,6 +33,7 @@ from .jwt import JWTConfig
 from .password_auth_providers import PasswordAuthProviderConfig
 from .emailconfig import EmailConfig
 from .workers import WorkerConfig
+from .push import PushConfig
 
 
 class HomeServerConfig(TlsConfig, ServerConfig, DatabaseConfig, LoggingConfig,
@@ -40,7 +41,7 @@ class HomeServerConfig(TlsConfig, ServerConfig, DatabaseConfig, LoggingConfig,
                        VoipConfig, RegistrationConfig, MetricsConfig, ApiConfig,
                        AppServiceConfig, KeyConfig, SAML2Config, CasConfig,
                        JWTConfig, PasswordConfig, EmailConfig,
-                       WorkerConfig, PasswordAuthProviderConfig,):
+                       WorkerConfig, PasswordAuthProviderConfig, PushConfig,):
     pass
 
 

synapse/config/push.py

@@ -0,0 +1,45 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015, 2016 OpenMarket 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 ._base import Config
+
+
+class PushConfig(Config):
+    def read_config(self, config):
+        self.push_redact_content = False
+
+        push_config = config.get("email", {})
+        self.push_redact_content = push_config.get("redact_content", False)
+
+    def default_config(self, config_dir_path, server_name, **kwargs):
+        return """
+        # Control how push messages are sent to google/apple to notifications.
+        # Normally every message said in a room with one or more people using
+        # mobile devices will be posted to a push server hosted by matrix.org
+        # which is registered with google and apple in order to allow push
+        # notifications to be sent to these mobile devices.
+        #
+        # Setting redact_content to true will make the push messages contain no
+        # message content which will provide increased privacy. This is a
+        # temporary solution pending improvements to Android and iPhone apps
+        # to get content from the app rather than the notification.
+        #
+        # For modern android devices the notification content will still appear
+        # because it is loaded by the app. iPhone, however will send a
+        # notification saying only that a message arrived and who it came from.
+        #
+        #push:
+        #   redact_content: false
+        """

synapse/config/server.py

@@ -35,6 +35,10 @@ class ServerConfig(Config):
         # "disable" federation
         self.send_federation = config.get("send_federation", True)
 
+        # Whether to update the user directory or not. This should be set to
+        # false only if we are updating the user directory in a worker
+        self.update_user_directory = config.get("update_user_directory", True)
+
         self.filter_timeline_limit = config.get("filter_timeline_limit", -1)
 
         if self.public_baseurl is not None:

synapse/federation/transaction_queue.py

@@ -187,6 +187,7 @@ class TransactionQueue(object):
                             prev_id for prev_id, _ in event.prev_events
                         ],
                     )
+                    destinations = set(destinations)
 
                     if send_on_behalf_of is not None:
                         # If we are sending the event on behalf of another server

synapse/handlers/auth.py

@@ -21,6 +21,7 @@ from synapse.api.constants import LoginType
 from synapse.types import UserID
 from synapse.api.errors import AuthError, LoginError, Codes, StoreError, SynapseError
 from synapse.util.async import run_on_reactor
+from synapse.util.caches.expiringcache import ExpiringCache
 
 from twisted.web.client import PartialDownloadError
 
@@ -52,7 +53,15 @@ class AuthHandler(BaseHandler):
             LoginType.DUMMY: self._check_dummy_auth,
         }
         self.bcrypt_rounds = hs.config.bcrypt_rounds
-        self.sessions = {}
+
+        # This is not a cache per se, but a store of all current sessions that
+        # expire after N hours
+        self.sessions = ExpiringCache(
+            cache_name="register_sessions",
+            clock=hs.get_clock(),
+            expiry_ms=self.SESSION_EXPIRE_MS,
+            reset_expiry_on_get=True,
+        )
 
         account_handler = _AccountHandler(
             hs, check_user_exists=self.check_user_exists
@@ -617,16 +626,6 @@ class AuthHandler(BaseHandler):
         logger.debug("Saving session %s", session)
         session["last_used"] = self.hs.get_clock().time_msec()
         self.sessions[session["id"]] = session
-        self._prune_sessions()
-
-    def _prune_sessions(self):
-        for sid, sess in self.sessions.items():
-            last_used = 0
-            if 'last_used' in sess:
-                last_used = sess['last_used']
-            now = self.hs.get_clock().time_msec()
-            if last_used < now - AuthHandler.SESSION_EXPIRE_MS:
-                del self.sessions[sid]
 
     def hash(self, password):
         """Computes a secure hash of password.

synapse/handlers/device.py

@@ -106,7 +106,7 @@ class DeviceHandler(BaseHandler):
         device_map = yield self.store.get_devices_by_user(user_id)
 
         ips = yield self.store.get_last_client_ip_by_device(
-            devices=((user_id, device_id) for device_id in device_map.keys())
+            user_id, device_id=None
         )
 
         devices = device_map.values()
@@ -133,7 +133,7 @@ class DeviceHandler(BaseHandler):
         except errors.StoreError:
             raise errors.NotFoundError
         ips = yield self.store.get_last_client_ip_by_device(
-            devices=((user_id, device_id),)
+            user_id, device_id,
         )
         _update_device_from_client_ips(device, ips)
         defer.returnValue(device)

synapse/handlers/federation.py

@@ -43,7 +43,6 @@ from synapse.events.utils import prune_event
 
 from synapse.util.retryutils import NotRetryingDestination
 
-from synapse.push.action_generator import ActionGenerator
 from synapse.util.distributor import user_joined_room
 
 from twisted.internet import defer
@@ -75,6 +74,8 @@ class FederationHandler(BaseHandler):
         self.state_handler = hs.get_state_handler()
         self.server_name = hs.hostname
         self.keyring = hs.get_keyring()
+        self.action_generator = hs.get_action_generator()
+        self.is_mine_id = hs.is_mine_id
 
         self.replication_layer.set_handler(self)
 
@@ -832,7 +833,11 @@ class FederationHandler(BaseHandler):
 
     @defer.inlineCallbacks
     def on_event_auth(self, event_id):
-        auth = yield self.store.get_auth_chain([event_id])
+        event = yield self.store.get_event(event_id)
+        auth = yield self.store.get_auth_chain(
+            [auth_id for auth_id, _ in event.auth_events],
+            include_given=True
+        )
 
         for event in auth:
             event.signatures.update(
@@ -1047,9 +1052,7 @@ class FederationHandler(BaseHandler):
                 yield user_joined_room(self.distributor, user, event.room_id)
 
         state_ids = context.prev_state_ids.values()
-        auth_chain = yield self.store.get_auth_chain(set(
+        auth_chain = yield self.store.get_auth_chain(state_ids)
-            [event.event_id] + state_ids
-        ))
 
         state = yield self.store.get_events(context.prev_state_ids.values())
 
@@ -1066,6 +1069,24 @@ class FederationHandler(BaseHandler):
         """
         event = pdu
 
+        is_blocked = yield self.store.is_room_blocked(event.room_id)
+        if is_blocked:
+            raise SynapseError(403, "This room has been blocked on this server")
+
+        membership = event.content.get("membership")
+        if event.type != EventTypes.Member or membership != Membership.INVITE:
+            raise SynapseError(400, "The event was not an m.room.member invite event")
+
+        sender_domain = get_domain_from_id(event.sender)
+        if sender_domain != origin:
+            raise SynapseError(400, "The invite event was not from the server sending it")
+
+        if event.state_key is None:
+            raise SynapseError(400, "The invite event did not have a state key")
+
+        if not self.is_mine_id(event.state_key):
+            raise SynapseError(400, "The invite event must be for this server")
+
         event.internal_metadata.outlier = True
         event.internal_metadata.invite_from_remote = True
 
@@ -1100,6 +1121,9 @@ class FederationHandler(BaseHandler):
             user_id,
             "leave"
         )
+        # Mark as outlier as we don't have any state for this event; we're not
+        # even in the room.
+        event.internal_metadata.outlier = True
         event = self._sign_event(event)
 
         # Try the host that we succesfully called /make_leave/ on first for
@@ -1271,7 +1295,7 @@ class FederationHandler(BaseHandler):
             for event in res:
                 # We sign these again because there was a bug where we
                 # incorrectly signed things the first time round
-                if self.hs.is_mine_id(event.event_id):
+                if self.is_mine_id(event.event_id):
                     event.signatures.update(
                         compute_event_signature(
                             event,
@@ -1344,7 +1368,7 @@ class FederationHandler(BaseHandler):
         )
 
         if event:
-            if self.hs.is_mine_id(event.event_id):
+            if self.is_mine_id(event.event_id):
                 # FIXME: This is a temporary work around where we occasionally
                 # return events slightly differently than when they were
                 # originally signed
@@ -1389,8 +1413,7 @@ class FederationHandler(BaseHandler):
         )
 
         if not event.internal_metadata.is_outlier():
-            action_generator = ActionGenerator(self.hs)
+            yield self.action_generator.handle_push_actions_for_event(
-            yield action_generator.handle_push_actions_for_event(
                 event, context
             )
 
@@ -1599,7 +1622,11 @@ class FederationHandler(BaseHandler):
                 pass
 
         # Now get the current auth_chain for the event.
-        local_auth_chain = yield self.store.get_auth_chain([event_id])
+        event = yield self.store.get_event(event_id)
+        local_auth_chain = yield self.store.get_auth_chain(
+            [auth_id for auth_id, _ in event.auth_events],
+            include_given=True
+        )
 
         # TODO: Check if we would now reject event_id. If so we need to tell
         # everyone.
@@ -1792,7 +1819,9 @@ class FederationHandler(BaseHandler):
                 auth_ids = yield self.auth.compute_auth_events(
                     event, context.prev_state_ids
                 )
-                local_auth_chain = yield self.store.get_auth_chain(auth_ids)
+                local_auth_chain = yield self.store.get_auth_chain(
+                    auth_ids, include_given=True
+                )
 
                 try:
                     # 2. Get remote difference.

synapse/handlers/message.py

@@ -20,7 +20,6 @@ from synapse.api.errors import AuthError, Codes, SynapseError
 from synapse.crypto.event_signing import add_hashes_and_signatures
 from synapse.events.utils import serialize_event
 from synapse.events.validator import EventValidator
-from synapse.push.action_generator import ActionGenerator
 from synapse.types import (
     UserID, RoomAlias, RoomStreamToken,
 )
@@ -35,6 +34,7 @@ from canonicaljson import encode_canonical_json
 
 import logging
 import random
+import ujson
 
 logger = logging.getLogger(__name__)
 
@@ -54,6 +54,8 @@ class MessageHandler(BaseHandler):
         # This is to stop us from diverging history *too* much.
         self.limiter = Limiter(max_count=5)
 
+        self.action_generator = hs.get_action_generator()
+
     @defer.inlineCallbacks
     def purge_history(self, room_id, event_id):
         event = yield self.store.get_event(event_id)
@@ -497,6 +499,14 @@ class MessageHandler(BaseHandler):
             logger.warn("Denying new event %r because %s", event, err)
             raise err
 
+        # Ensure that we can round trip before trying to persist in db
+        try:
+            dump = ujson.dumps(event.content)
+            ujson.loads(dump)
+        except:
+            logger.exception("Failed to encode content: %r", event.content)
+            raise
+
         yield self.maybe_kick_guest_users(event, context)
 
         if event.type == EventTypes.CanonicalAlias:
@@ -590,8 +600,7 @@ class MessageHandler(BaseHandler):
                 "Changing the room create event is forbidden",
             )
 
-        action_generator = ActionGenerator(self.hs)
+        yield self.action_generator.handle_push_actions_for_event(
-        yield action_generator.handle_push_actions_for_event(
             event, context
         )
 

synapse/handlers/room.py

@@ -61,7 +61,7 @@ class RoomCreationHandler(BaseHandler):
     }
 
     @defer.inlineCallbacks
-    def create_room(self, requester, config):
+    def create_room(self, requester, config, ratelimit=True):
         """ Creates a new room.
 
         Args:
@@ -75,6 +75,7 @@ class RoomCreationHandler(BaseHandler):
         """
         user_id = requester.user.to_string()
 
+        if ratelimit:
             yield self.ratelimit(requester)
 
         if "room_alias_name" in config:
@@ -167,6 +168,7 @@ class RoomCreationHandler(BaseHandler):
             initial_state=initial_state,
             creation_content=creation_content,
             room_alias=room_alias,
+            power_level_content_override=config.get("power_level_content_override", {})
         )
 
         if "name" in config:
@@ -245,7 +247,8 @@ class RoomCreationHandler(BaseHandler):
             invite_list,
             initial_state,
             creation_content,
-            room_alias
+            room_alias,
+            power_level_content_override,
     ):
         def create(etype, content, **kwargs):
             e = {
@@ -291,7 +294,15 @@ class RoomCreationHandler(BaseHandler):
             ratelimit=False,
         )
 
-        if (EventTypes.PowerLevels, '') not in initial_state:
+        # We treat the power levels override specially as this needs to be one
+        # of the first events that get sent into a room.
+        pl_content = initial_state.pop((EventTypes.PowerLevels, ''), None)
+        if pl_content is not None:
+            yield send(
+                etype=EventTypes.PowerLevels,
+                content=pl_content,
+            )
+        else:
             power_level_content = {
                 "users": {
                     creator_id: 100,
@@ -316,6 +327,8 @@ class RoomCreationHandler(BaseHandler):
                 for invitee in invite_list:
                     power_level_content["users"][invitee] = 100
 
+            power_level_content.update(power_level_content_override)
+
             yield send(
                 etype=EventTypes.PowerLevels,
                 content=power_level_content,

synapse/handlers/room_member.py

@@ -203,6 +203,11 @@ class RoomMemberHandler(BaseHandler):
         if not remote_room_hosts:
             remote_room_hosts = []
 
+        if effective_membership_state not in ("leave", "ban",):
+            is_blocked = yield self.store.is_room_blocked(room_id)
+            if is_blocked:
+                raise SynapseError(403, "This room has been blocked on this server")
+
         latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
         current_state_ids = yield self.state_handler.get_current_state_ids(
             room_id, latest_event_ids=latest_event_ids,
@@ -369,6 +374,11 @@ class RoomMemberHandler(BaseHandler):
                     # so don't really fit into the general auth process.
                     raise AuthError(403, "Guest access not allowed")
 
+        if event.membership not in (Membership.LEAVE, Membership.BAN):
+            is_blocked = yield self.store.is_room_blocked(room_id)
+            if is_blocked:
+                raise SynapseError(403, "This room has been blocked on this server")
+
         yield message_handler.handle_new_client_event(
             requester,
             event,

synapse/handlers/sync.py

@@ -117,6 +117,8 @@ class SyncResult(collections.namedtuple("SyncResult", [
     "archived",  # ArchivedSyncResult for each archived room.
     "to_device",  # List of direct messages for the device.
     "device_lists",  # List of user_ids whose devices have chanegd
+    "device_one_time_keys_count",  # Dict of algorithm to count for one time keys
+                                   # for this device
 ])):
     __slots__ = []
 
@@ -550,6 +552,14 @@ class SyncHandler(object):
             sync_result_builder
         )
 
+        device_id = sync_config.device_id
+        one_time_key_counts = {}
+        if device_id:
+            user_id = sync_config.user.to_string()
+            one_time_key_counts = yield self.store.count_e2e_one_time_keys(
+                user_id, device_id
+            )
+
         defer.returnValue(SyncResult(
             presence=sync_result_builder.presence,
             account_data=sync_result_builder.account_data,
@@ -558,6 +568,7 @@ class SyncHandler(object):
             archived=sync_result_builder.archived,
             to_device=sync_result_builder.to_device,
             device_lists=device_lists,
+            device_one_time_keys_count=one_time_key_counts,
             next_batch=sync_result_builder.now_token,
         ))
 

synapse/handlers/typing.py

@@ -89,7 +89,7 @@ class TypingHandler(object):
             until = self._member_typing_until.get(member, None)
             if not until or until <= now:
                 logger.info("Timing out typing for: %s", member.user_id)
-                preserve_fn(self._stopped_typing)(member)
+                self._stopped_typing(member)
                 continue
 
             # Check if we need to resend a keep alive over federation for this
@@ -147,7 +147,7 @@ class TypingHandler(object):
             # No point sending another notification
             defer.returnValue(None)
 
-        yield self._push_update(
+        self._push_update(
             member=member,
             typing=True,
         )
@@ -171,7 +171,7 @@ class TypingHandler(object):
 
         member = RoomMember(room_id=room_id, user_id=target_user_id)
 
-        yield self._stopped_typing(member)
+        self._stopped_typing(member)
 
     @defer.inlineCallbacks
     def user_left_room(self, user, room_id):
@@ -180,7 +180,6 @@ class TypingHandler(object):
             member = RoomMember(room_id=room_id, user_id=user_id)
             yield self._stopped_typing(member)
 
-    @defer.inlineCallbacks
     def _stopped_typing(self, member):
         if member.user_id not in self._room_typing.get(member.room_id, set()):
             # No point
@@ -189,16 +188,15 @@ class TypingHandler(object):
         self._member_typing_until.pop(member, None)
         self._member_last_federation_poke.pop(member, None)
 
-        yield self._push_update(
+        self._push_update(
             member=member,
             typing=False,
         )
 
-    @defer.inlineCallbacks
     def _push_update(self, member, typing):
         if self.hs.is_mine_id(member.user_id):
             # Only send updates for changes to our own users.
-            yield self._push_remote(member, typing)
+            preserve_fn(self._push_remote)(member, typing)
 
         self._push_update_local(
             member=member,

synapse/handlers/user_directory.py

@@ -0,0 +1,641 @@
+# -*- 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.
+
+import logging
+from twisted.internet import defer
+
+from synapse.api.constants import EventTypes, JoinRules, Membership
+from synapse.storage.roommember import ProfileInfo
+from synapse.util.metrics import Measure
+from synapse.util.async import sleep
+
+
+logger = logging.getLogger(__name__)
+
+
+class UserDirectoyHandler(object):
+    """Handles querying of and keeping updated the user_directory.
+
+    N.B.: ASSUMES IT IS THE ONLY THING THAT MODIFIES THE USER DIRECTORY
+
+    The user directory is filled with users who this server can see are joined to a
+    world_readable or publically joinable room. We keep a database table up to date
+    by streaming changes of the current state and recalculating whether users should
+    be in the directory or not when necessary.
+
+    For each user in the directory we also store a room_id which is public and that the
+    user is joined to. This allows us to ignore history_visibility and join_rules changes
+    for that user in all other public rooms, as we know they'll still be in at least
+    one public room.
+    """
+
+    INITIAL_SLEEP_MS = 50
+    INITIAL_SLEEP_COUNT = 100
+    INITIAL_BATCH_SIZE = 100
+
+    def __init__(self, hs):
+        self.store = hs.get_datastore()
+        self.state = hs.get_state_handler()
+        self.server_name = hs.hostname
+        self.clock = hs.get_clock()
+        self.notifier = hs.get_notifier()
+        self.is_mine_id = hs.is_mine_id
+        self.update_user_directory = hs.config.update_user_directory
+
+        # When start up for the first time we need to populate the user_directory.
+        # This is a set of user_id's we've inserted already
+        self.initially_handled_users = set()
+        self.initially_handled_users_in_public = set()
+
+        self.initially_handled_users_share = set()
+        self.initially_handled_users_share_private_room = set()
+
+        # The current position in the current_state_delta stream
+        self.pos = None
+
+        # Guard to ensure we only process deltas one at a time
+        self._is_processing = False
+
+        if self.update_user_directory:
+            self.notifier.add_replication_callback(self.notify_new_event)
+
+            # We kick this off so that we don't have to wait for a change before
+            # we start populating the user directory
+            self.clock.call_later(0, self.notify_new_event)
+
+    def search_users(self, user_id, search_term, limit):
+        """Searches for users in directory
+
+        Returns:
+            dict of the form::
+
+                {
+                    "limited": <bool>,  # whether there were more results or not
+                    "results": [  # Ordered by best match first
+                        {
+                            "user_id": <user_id>,
+                            "display_name": <display_name>,
+                            "avatar_url": <avatar_url>
+                        }
+                    ]
+                }
+        """
+        return self.store.search_user_dir(user_id, search_term, limit)
+
+    @defer.inlineCallbacks
+    def notify_new_event(self):
+        """Called when there may be more deltas to process
+        """
+        if not self.update_user_directory:
+            return
+
+        if self._is_processing:
+            return
+
+        self._is_processing = True
+        try:
+            yield self._unsafe_process()
+        finally:
+            self._is_processing = False
+
+    @defer.inlineCallbacks
+    def _unsafe_process(self):
+        # If self.pos is None then means we haven't fetched it from DB
+        if self.pos is None:
+            self.pos = yield self.store.get_user_directory_stream_pos()
+
+        # If still None then we need to do the initial fill of directory
+        if self.pos is None:
+            yield self._do_initial_spam()
+            self.pos = yield self.store.get_user_directory_stream_pos()
+
+        # Loop round handling deltas until we're up to date
+        while True:
+            with Measure(self.clock, "user_dir_delta"):
+                deltas = yield self.store.get_current_state_deltas(self.pos)
+                if not deltas:
+                    return
+
+                logger.info("Handling %d state deltas", len(deltas))
+                yield self._handle_deltas(deltas)
+
+                self.pos = deltas[-1]["stream_id"]
+                yield self.store.update_user_directory_stream_pos(self.pos)
+
+    @defer.inlineCallbacks
+    def _do_initial_spam(self):
+        """Populates the user_directory from the current state of the DB, used
+        when synapse first starts with user_directory support
+        """
+        new_pos = yield self.store.get_max_stream_id_in_current_state_deltas()
+
+        # Delete any existing entries just in case there are any
+        yield self.store.delete_all_from_user_dir()
+
+        # We process by going through each existing room at a time.
+        room_ids = yield self.store.get_all_rooms()
+
+        logger.info("Doing initial update of user directory. %d rooms", len(room_ids))
+        num_processed_rooms = 1
+
+        for room_id in room_ids:
+            logger.info("Handling room %d/%d", num_processed_rooms, len(room_ids))
+            yield self._handle_intial_room(room_id)
+            num_processed_rooms += 1
+            yield sleep(self.INITIAL_SLEEP_MS / 1000.)
+
+        logger.info("Processed all rooms.")
+
+        self.initially_handled_users = None
+        self.initially_handled_users_in_public = None
+        self.initially_handled_users_share = None
+        self.initially_handled_users_share_private_room = None
+
+        yield self.store.update_user_directory_stream_pos(new_pos)
+
+    @defer.inlineCallbacks
+    def _handle_intial_room(self, room_id):
+        """Called when we initially fill out user_directory one room at a time
+        """
+        is_in_room = yield self.store.is_host_joined(room_id, self.server_name)
+        if not is_in_room:
+            return
+
+        is_public = yield self.store.is_room_world_readable_or_publicly_joinable(room_id)
+
+        users_with_profile = yield self.state.get_current_user_in_room(room_id)
+        user_ids = set(users_with_profile)
+        unhandled_users = user_ids - self.initially_handled_users
+
+        yield self.store.add_profiles_to_user_dir(
+            room_id, {
+                user_id: users_with_profile[user_id] for user_id in unhandled_users
+            }
+        )
+
+        self.initially_handled_users |= unhandled_users
+
+        if is_public:
+            yield self.store.add_users_to_public_room(
+                room_id,
+                user_ids=user_ids - self.initially_handled_users_in_public
+            )
+            self.initially_handled_users_in_public |= user_ids
+
+        # We now go and figure out the new users who share rooms with user entries
+        # We sleep aggressively here as otherwise it can starve resources.
+        # We also batch up inserts/updates, but try to avoid too many at once.
+        to_insert = set()
+        to_update = set()
+        count = 0
+        for user_id in user_ids:
+            if count % self.INITIAL_SLEEP_COUNT == 0:
+                yield sleep(self.INITIAL_SLEEP_MS / 1000.)
+
+            if not self.is_mine_id(user_id):
+                count += 1
+                continue
+
+            if self.store.get_if_app_services_interested_in_user(user_id):
+                count += 1
+                continue
+
+            for other_user_id in user_ids:
+                if user_id == other_user_id:
+                    continue
+
+                if count % self.INITIAL_SLEEP_COUNT == 0:
+                    yield sleep(self.INITIAL_SLEEP_MS / 1000.)
+                count += 1
+
+                user_set = (user_id, other_user_id)
+
+                if user_set in self.initially_handled_users_share_private_room:
+                    continue
+
+                if user_set in self.initially_handled_users_share:
+                    if is_public:
+                        continue
+                    to_update.add(user_set)
+                else:
+                    to_insert.add(user_set)
+
+                if is_public:
+                    self.initially_handled_users_share.add(user_set)
+                else:
+                    self.initially_handled_users_share_private_room.add(user_set)
+
+                if len(to_insert) > self.INITIAL_BATCH_SIZE:
+                    yield self.store.add_users_who_share_room(
+                        room_id, not is_public, to_insert,
+                    )
+                    to_insert.clear()
+
+                if len(to_update) > self.INITIAL_BATCH_SIZE:
+                    yield self.store.update_users_who_share_room(
+                        room_id, not is_public, to_update,
+                    )
+                    to_update.clear()
+
+        if to_insert:
+            yield self.store.add_users_who_share_room(
+                room_id, not is_public, to_insert,
+            )
+            to_insert.clear()
+
+        if to_update:
+            yield self.store.update_users_who_share_room(
+                room_id, not is_public, to_update,
+            )
+            to_update.clear()
+
+    @defer.inlineCallbacks
+    def _handle_deltas(self, deltas):
+        """Called with the state deltas to process
+        """
+        for delta in deltas:
+            typ = delta["type"]
+            state_key = delta["state_key"]
+            room_id = delta["room_id"]
+            event_id = delta["event_id"]
+            prev_event_id = delta["prev_event_id"]
+
+            logger.debug("Handling: %r %r, %s", typ, state_key, event_id)
+
+            # For join rule and visibility changes we need to check if the room
+            # may have become public or not and add/remove the users in said room
+            if typ in (EventTypes.RoomHistoryVisibility, EventTypes.JoinRules):
+                yield self._handle_room_publicity_change(
+                    room_id, prev_event_id, event_id, typ,
+                )
+            elif typ == EventTypes.Member:
+                change = yield self._get_key_change(
+                    prev_event_id, event_id,
+                    key_name="membership",
+                    public_value=Membership.JOIN,
+                )
+
+                if change is None:
+                    # Handle any profile changes
+                    yield self._handle_profile_change(
+                        state_key, room_id, prev_event_id, event_id,
+                    )
+                    continue
+
+                if not change:
+                    # Need to check if the server left the room entirely, if so
+                    # we might need to remove all the users in that room
+                    is_in_room = yield self.store.is_host_joined(
+                        room_id, self.server_name,
+                    )
+                    if not is_in_room:
+                        logger.info("Server left room: %r", room_id)
+                        # Fetch all the users that we marked as being in user
+                        # directory due to being in the room and then check if
+                        # need to remove those users or not
+                        user_ids = yield self.store.get_users_in_dir_due_to_room(room_id)
+                        for user_id in user_ids:
+                            yield self._handle_remove_user(room_id, user_id)
+                        return
+                    else:
+                        logger.debug("Server is still in room: %r", room_id)
+
+                if change:  # The user joined
+                    event = yield self.store.get_event(event_id, allow_none=True)
+                    profile = ProfileInfo(
+                        avatar_url=event.content.get("avatar_url"),
+                        display_name=event.content.get("displayname"),
+                    )
+
+                    yield self._handle_new_user(room_id, state_key, profile)
+                else:  # The user left
+                    yield self._handle_remove_user(room_id, state_key)
+            else:
+                logger.debug("Ignoring irrelevant type: %r", typ)
+
+    @defer.inlineCallbacks
+    def _handle_room_publicity_change(self, room_id, prev_event_id, event_id, typ):
+        """Handle a room having potentially changed from/to world_readable/publically
+        joinable.
+
+        Args:
+            room_id (str)
+            prev_event_id (str|None): The previous event before the state change
+            event_id (str|None): The new event after the state change
+            typ (str): Type of the event
+        """
+        logger.debug("Handling change for %s: %s", typ, room_id)
+
+        if typ == EventTypes.RoomHistoryVisibility:
+            change = yield self._get_key_change(
+                prev_event_id, event_id,
+                key_name="history_visibility",
+                public_value="world_readable",
+            )
+        elif typ == EventTypes.JoinRules:
+            change = yield self._get_key_change(
+                prev_event_id, event_id,
+                key_name="join_rule",
+                public_value=JoinRules.PUBLIC,
+            )
+        else:
+            raise Exception("Invalid event type")
+        # If change is None, no change. True => become world_readable/public,
+        # False => was world_readable/public
+        if change is None:
+            logger.debug("No change")
+            return
+
+        # There's been a change to or from being world readable.
+
+        is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
+            room_id
+        )
+
+        logger.debug("Change: %r, is_public: %r", change, is_public)
+
+        if change and not is_public:
+            # If we became world readable but room isn't currently public then
+            # we ignore the change
+            return
+        elif not change and is_public:
+            # If we stopped being world readable but are still public,
+            # ignore the change
+            return
+
+        if change:
+            users_with_profile = yield self.state.get_current_user_in_room(room_id)
+            for user_id, profile in users_with_profile.iteritems():
+                yield self._handle_new_user(room_id, user_id, profile)
+        else:
+            users = yield self.store.get_users_in_public_due_to_room(room_id)
+            for user_id in users:
+                yield self._handle_remove_user(room_id, user_id)
+
+    @defer.inlineCallbacks
+    def _handle_new_user(self, room_id, user_id, profile):
+        """Called when we might need to add user to directory
+
+        Args:
+            room_id (str): room_id that user joined or started being public that
+            user_id (str)
+        """
+        logger.debug("Adding user to dir, %r", user_id)
+
+        row = yield self.store.get_user_in_directory(user_id)
+        if not row:
+            yield self.store.add_profiles_to_user_dir(room_id, {user_id: profile})
+
+        is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
+            room_id
+        )
+
+        if is_public:
+            row = yield self.store.get_user_in_public_room(user_id)
+            if not row:
+                yield self.store.add_users_to_public_room(room_id, [user_id])
+        else:
+            logger.debug("Not adding user to public dir, %r", user_id)
+
+        # Now we update users who share rooms with users. We do this by getting
+        # all the current users in the room and seeing which aren't already
+        # marked in the database as sharing with `user_id`
+
+        users_with_profile = yield self.state.get_current_user_in_room(room_id)
+
+        to_insert = set()
+        to_update = set()
+
+        is_appservice = self.store.get_if_app_services_interested_in_user(user_id)
+
+        # First, if they're our user then we need to update for every user
+        if self.is_mine_id(user_id) and not is_appservice:
+            # Returns a map of other_user_id -> shared_private. We only need
+            # to update mappings if for users that either don't share a room
+            # already (aren't in the map) or, if the room is private, those that
+            # only share a public room.
+            user_ids_shared = yield self.store.get_users_who_share_room_from_dir(
+                user_id
+            )
+
+            for other_user_id in users_with_profile:
+                if user_id == other_user_id:
+                    continue
+
+                shared_is_private = user_ids_shared.get(other_user_id)
+                if shared_is_private is True:
+                    # We've already marked in the database they share a private room
+                    continue
+                elif shared_is_private is False:
+                    # They already share a public room, so only update if this is
+                    # a private room
+                    if not is_public:
+                        to_update.add((user_id, other_user_id))
+                elif shared_is_private is None:
+                    # This is the first time they both share a room
+                    to_insert.add((user_id, other_user_id))
+
+        # Next we need to update for every local user in the room
+        for other_user_id in users_with_profile:
+            if user_id == other_user_id:
+                continue
+
+            is_appservice = self.store.get_if_app_services_interested_in_user(
+                other_user_id
+            )
+            if self.is_mine_id(other_user_id) and not is_appservice:
+                shared_is_private = yield self.store.get_if_users_share_a_room(
+                    other_user_id, user_id,
+                )
+                if shared_is_private is True:
+                    # We've already marked in the database they share a private room
+                    continue
+                elif shared_is_private is False:
+                    # They already share a public room, so only update if this is
+                    # a private room
+                    if not is_public:
+                        to_update.add((other_user_id, user_id))
+                elif shared_is_private is None:
+                    # This is the first time they both share a room
+                    to_insert.add((other_user_id, user_id))
+
+        if to_insert:
+            yield self.store.add_users_who_share_room(
+                room_id, not is_public, to_insert,
+            )
+
+        if to_update:
+            yield self.store.update_users_who_share_room(
+                room_id, not is_public, to_update,
+            )
+
+    @defer.inlineCallbacks
+    def _handle_remove_user(self, room_id, user_id):
+        """Called when we might need to remove user to directory
+
+        Args:
+            room_id (str): room_id that user left or stopped being public that
+            user_id (str)
+        """
+        logger.debug("Maybe removing user %r", user_id)
+
+        row = yield self.store.get_user_in_directory(user_id)
+        update_user_dir = row and row["room_id"] == room_id
+
+        row = yield self.store.get_user_in_public_room(user_id)
+        update_user_in_public = row and row["room_id"] == room_id
+
+        if (update_user_in_public or update_user_dir):
+            # XXX: Make this faster?
+            rooms = yield self.store.get_rooms_for_user(user_id)
+            for j_room_id in rooms:
+                if (not update_user_in_public and not update_user_dir):
+                    break
+
+                is_in_room = yield self.store.is_host_joined(
+                    j_room_id, self.server_name,
+                )
+
+                if not is_in_room:
+                    continue
+
+                if update_user_dir:
+                    update_user_dir = False
+                    yield self.store.update_user_in_user_dir(user_id, j_room_id)
+
+                is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
+                    j_room_id
+                )
+
+                if update_user_in_public and is_public:
+                    yield self.store.update_user_in_public_user_list(user_id, j_room_id)
+                    update_user_in_public = False
+
+        if update_user_dir:
+            yield self.store.remove_from_user_dir(user_id)
+        elif update_user_in_public:
+            yield self.store.remove_from_user_in_public_room(user_id)
+
+        # Now handle users_who_share_rooms.
+
+        # Get a list of user tuples that were in the DB due to this room and
+        # users (this includes tuples where the other user matches `user_id`)
+        user_tuples = yield self.store.get_users_in_share_dir_with_room_id(
+            user_id, room_id,
+        )
+
+        for user_id, other_user_id in user_tuples:
+            # For each user tuple get a list of rooms that they still share,
+            # trying to find a private room, and update the entry in the DB
+            rooms = yield self.store.get_rooms_in_common_for_users(user_id, other_user_id)
+
+            # If they dont share a room anymore, remove the mapping
+            if not rooms:
+                yield self.store.remove_user_who_share_room(
+                    user_id, other_user_id,
+                )
+                continue
+
+            found_public_share = None
+            for j_room_id in rooms:
+                is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
+                    j_room_id
+                )
+
+                if is_public:
+                    found_public_share = j_room_id
+                else:
+                    found_public_share = None
+                    yield self.store.update_users_who_share_room(
+                        room_id, not is_public, [(user_id, other_user_id)],
+                    )
+                    break
+
+            if found_public_share:
+                yield self.store.update_users_who_share_room(
+                    room_id, not is_public, [(user_id, other_user_id)],
+                )
+
+    @defer.inlineCallbacks
+    def _handle_profile_change(self, user_id, room_id, prev_event_id, event_id):
+        """Check member event changes for any profile changes and update the
+        database if there are.
+        """
+        if not prev_event_id or not event_id:
+            return
+
+        prev_event = yield self.store.get_event(prev_event_id, allow_none=True)
+        event = yield self.store.get_event(event_id, allow_none=True)
+
+        if not prev_event or not event:
+            return
+
+        if event.membership != Membership.JOIN:
+            return
+
+        prev_name = prev_event.content.get("displayname")
+        new_name = event.content.get("displayname")
+
+        prev_avatar = prev_event.content.get("avatar_url")
+        new_avatar = event.content.get("avatar_url")
+
+        if prev_name != new_name or prev_avatar != new_avatar:
+            yield self.store.update_profile_in_user_dir(
+                user_id, new_name, new_avatar, room_id,
+            )
+
+    @defer.inlineCallbacks
+    def _get_key_change(self, prev_event_id, event_id, key_name, public_value):
+        """Given two events check if the `key_name` field in content changed
+        from not matching `public_value` to doing so.
+
+        For example, check if `history_visibility` (`key_name`) changed from
+        `shared` to `world_readable` (`public_value`).
+
+        Returns:
+            None if the field in the events either both match `public_value`
+            or if neither do, i.e. there has been no change.
+            True if it didnt match `public_value` but now does
+            False if it did match `public_value` but now doesn't
+        """
+        prev_event = None
+        event = None
+        if prev_event_id:
+            prev_event = yield self.store.get_event(prev_event_id, allow_none=True)
+
+        if event_id:
+            event = yield self.store.get_event(event_id, allow_none=True)
+
+        if not event and not prev_event:
+            logger.debug("Neither event exists: %r %r", prev_event_id, event_id)
+            defer.returnValue(None)
+
+        prev_value = None
+        value = None
+
+        if prev_event:
+            prev_value = prev_event.content.get(key_name)
+
+        if event:
+            value = event.content.get(key_name)
+
+        logger.debug("prev_value: %r -> value: %r", prev_value, value)
+
+        if value == public_value and prev_value != public_value:
+            defer.returnValue(True)
+        elif value != public_value and prev_value == public_value:
+            defer.returnValue(False)
+        else:
+            defer.returnValue(None)

synapse/http/server.py

@@ -412,7 +412,7 @@ def set_cors_headers(request):
     )
     request.setHeader(
         "Access-Control-Allow-Headers",
-        "Origin, X-Requested-With, Content-Type, Accept"
+        "Origin, X-Requested-With, Content-Type, Accept, Authorization"
     )
 
 

synapse/notifier.py

@@ -251,7 +251,8 @@ class Notifier(object):
         """Notify any user streams that are interested in this room event"""
         # poke any interested application service.
         preserve_fn(self.appservice_handler.notify_interested_services)(
-            room_stream_id)
+            room_stream_id
+        )
 
         if self.federation_sender:
             preserve_fn(self.federation_sender.notify_new_events)(

synapse/push/action_generator.py

@@ -15,7 +15,7 @@
 
 from twisted.internet import defer
 
-from .bulk_push_rule_evaluator import evaluator_for_event
+from .bulk_push_rule_evaluator import BulkPushRuleEvaluator
 
 from synapse.util.metrics import Measure
 
@@ -24,11 +24,12 @@ import logging
 logger = logging.getLogger(__name__)
 
 
-class ActionGenerator:
+class ActionGenerator(object):
     def __init__(self, hs):
         self.hs = hs
         self.clock = hs.get_clock()
         self.store = hs.get_datastore()
+        self.bulk_evaluator = BulkPushRuleEvaluator(hs)
         # really we want to get all user ids and all profile tags too,
         # since we want the actions for each profile tag for every user and
         # also actions for a client with no profile tag for each user.
@@ -38,16 +39,11 @@ class ActionGenerator:
 
     @defer.inlineCallbacks
     def handle_push_actions_for_event(self, event, context):
-        with Measure(self.clock, "evaluator_for_event"):
-            bulk_evaluator = yield evaluator_for_event(
-                event, self.hs, self.store, context
-            )
-
         with Measure(self.clock, "action_for_event_by_user"):
-            actions_by_user = yield bulk_evaluator.action_for_event_by_user(
+            actions_by_user = yield self.bulk_evaluator.action_for_event_by_user(
                 event, context
             )
 
         context.push_actions = [
-            (uid, actions) for uid, actions in actions_by_user.items()
+            (uid, actions) for uid, actions in actions_by_user.iteritems()
         ]

synapse/push/bulk_push_rule_evaluator.py

@@ -19,60 +19,83 @@ from twisted.internet import defer
 
 from .push_rule_evaluator import PushRuleEvaluatorForEvent
 
-from synapse.api.constants import EventTypes
 from synapse.visibility import filter_events_for_clients_context
+from synapse.api.constants import EventTypes, Membership
+from synapse.util.caches.descriptors import cached
+from synapse.util.async import Linearizer
+
+from collections import namedtuple
 
 
 logger = logging.getLogger(__name__)
 
 
-@defer.inlineCallbacks
+rules_by_room = {}
-def evaluator_for_event(event, hs, store, context):
+
-    rules_by_user = yield store.bulk_get_push_rules_for_room(
+
-        event, context
+class BulkPushRuleEvaluator(object):
-    )
+    """Calculates the outcome of push rules for an event for all users in the
+    room at once.
+    """
+
+    def __init__(self, hs):
+        self.hs = hs
+        self.store = hs.get_datastore()
+
+    @defer.inlineCallbacks
+    def _get_rules_for_event(self, event, context):
+        """This gets the rules for all users in the room at the time of the event,
+        as well as the push rules for the invitee if the event is an invite.
+
+        Returns:
+            dict of user_id -> push_rules
+        """
+        room_id = event.room_id
+        rules_for_room = self._get_rules_for_room(room_id)
+
+        rules_by_user = yield rules_for_room.get_rules(event, context)
 
         # if this event is an invite event, we may need to run rules for the user
         # who's been invited, otherwise they won't get told they've been invited
         if event.type == 'm.room.member' and event.content['membership'] == 'invite':
-        invited_user = event.state_key
+            invited = event.state_key
-        if invited_user and hs.is_mine_id(invited_user):
+            if invited and self.hs.is_mine_id(invited):
-            has_pusher = yield store.user_has_pusher(invited_user)
+                has_pusher = yield self.store.user_has_pusher(invited)
                 if has_pusher:
                     rules_by_user = dict(rules_by_user)
-                rules_by_user[invited_user] = yield store.get_push_rules_for_user(
+                    rules_by_user[invited] = yield self.store.get_push_rules_for_user(
-                    invited_user
+                        invited
                     )
 
-    defer.returnValue(BulkPushRuleEvaluator(
+        defer.returnValue(rules_by_user)
-        event.room_id, rules_by_user, store
-    ))
 
+    @cached()
+    def _get_rules_for_room(self, room_id):
+        """Get the current RulesForRoom object for the given room id
 
-class BulkPushRuleEvaluator:
+        Returns:
+            RulesForRoom
         """
-    Runs push rules for all users in a room.
+        # It's important that RulesForRoom gets added to self._get_rules_for_room.cache
-    This is faster than running PushRuleEvaluator for each user because it
+        # before any lookup methods get called on it as otherwise there may be
-    fetches all the rules for all the users in one (batched) db query
+        # a race if invalidate_all gets called (which assumes its in the cache)
-    rather than doing multiple queries per-user. It currently uses
+        return RulesForRoom(self.hs, room_id, self._get_rules_for_room.cache)
-    the same logic to run the actual rules, but could be optimised further
-    (see https://matrix.org/jira/browse/SYN-562)
-    """
-    def __init__(self, room_id, rules_by_user, store):
-        self.room_id = room_id
-        self.rules_by_user = rules_by_user
-        self.store = store
 
     @defer.inlineCallbacks
     def action_for_event_by_user(self, event, context):
+        """Given an event and context, evaluate the push rules and return
+        the results
+
+        Returns:
+            dict of user_id -> action
+        """
+        rules_by_user = yield self._get_rules_for_event(event, context)
         actions_by_user = {}
 
         # None of these users can be peeking since this list of users comes
         # from the set of users in the room, so we know for sure they're all
         # actually in the room.
-        user_tuples = [
+        user_tuples = [(u, False) for u in rules_by_user]
-            (u, False) for u in self.rules_by_user.keys()
-        ]
 
         filtered_by_user = yield filter_events_for_clients_context(
             self.store, user_tuples, [event], {event.event_id: context}
@@ -86,7 +109,7 @@ class BulkPushRuleEvaluator:
 
         condition_cache = {}
 
-        for uid, rules in self.rules_by_user.items():
+        for uid, rules in rules_by_user.iteritems():
             display_name = None
             profile_info = room_members.get(uid)
             if profile_info:
@@ -138,3 +161,240 @@ def _condition_checker(evaluator, conditions, uid, display_name, cache):
             return False
 
     return True
+
+
+class RulesForRoom(object):
+    """Caches push rules for users in a room.
+
+    This efficiently handles users joining/leaving the room by not invalidating
+    the entire cache for the room.
+    """
+
+    def __init__(self, hs, room_id, rules_for_room_cache):
+        """
+        Args:
+            hs (HomeServer)
+            room_id (str)
+            rules_for_room_cache(Cache): The cache object that caches these
+                RoomsForUser objects.
+        """
+        self.room_id = room_id
+        self.is_mine_id = hs.is_mine_id
+        self.store = hs.get_datastore()
+
+        self.linearizer = Linearizer(name="rules_for_room")
+
+        self.member_map = {}  # event_id -> (user_id, state)
+        self.rules_by_user = {}  # user_id -> rules
+
+        # The last state group we updated the caches for. If the state_group of
+        # a new event comes along, we know that we can just return the cached
+        # result.
+        # On invalidation of the rules themselves (if the user changes them),
+        # we invalidate everything and set state_group to `object()`
+        self.state_group = object()
+
+        # A sequence number to keep track of when we're allowed to update the
+        # cache. We bump the sequence number when we invalidate the cache. If
+        # the sequence number changes while we're calculating stuff we should
+        # not update the cache with it.
+        self.sequence = 0
+
+        # A cache of user_ids that we *know* aren't interesting, e.g. user_ids
+        # owned by AS's, or remote users, etc. (I.e. users we will never need to
+        # calculate push for)
+        # These never need to be invalidated as we will never set up push for
+        # them.
+        self.uninteresting_user_set = set()
+
+        # We need to be clever on the invalidating caches callbacks, as
+        # otherwise the invalidation callback holds a reference to the object,
+        # potentially causing it to leak.
+        # To get around this we pass a function that on invalidations looks ups
+        # the RoomsForUser entry in the cache, rather than keeping a reference
+        # to self around in the callback.
+        self.invalidate_all_cb = _Invalidation(rules_for_room_cache, room_id)
+
+    @defer.inlineCallbacks
+    def get_rules(self, event, context):
+        """Given an event context return the rules for all users who are
+        currently in the room.
+        """
+        state_group = context.state_group
+
+        with (yield self.linearizer.queue(())):
+            if state_group and self.state_group == state_group:
+                logger.debug("Using cached rules for %r", self.room_id)
+                defer.returnValue(self.rules_by_user)
+
+            ret_rules_by_user = {}
+            missing_member_event_ids = {}
+            if state_group and self.state_group == context.prev_group:
+                # If we have a simple delta then we can reuse most of the previous
+                # results.
+                ret_rules_by_user = self.rules_by_user
+                current_state_ids = context.delta_ids
+            else:
+                current_state_ids = context.current_state_ids
+
+            logger.debug(
+                "Looking for member changes in %r %r", state_group, current_state_ids
+            )
+
+            # Loop through to see which member events we've seen and have rules
+            # for and which we need to fetch
+            for key in current_state_ids:
+                typ, user_id = key
+                if typ != EventTypes.Member:
+                    continue
+
+                if user_id in self.uninteresting_user_set:
+                    continue
+
+                if not self.is_mine_id(user_id):
+                    self.uninteresting_user_set.add(user_id)
+                    continue
+
+                if self.store.get_if_app_services_interested_in_user(user_id):
+                    self.uninteresting_user_set.add(user_id)
+                    continue
+
+                event_id = current_state_ids[key]
+
+                res = self.member_map.get(event_id, None)
+                if res:
+                    user_id, state = res
+                    if state == Membership.JOIN:
+                        rules = self.rules_by_user.get(user_id, None)
+                        if rules:
+                            ret_rules_by_user[user_id] = rules
+                    continue
+
+                # If a user has left a room we remove their push rule. If they
+                # joined then we readd it later in _update_rules_with_member_event_ids
+                ret_rules_by_user.pop(user_id, None)
+                missing_member_event_ids[user_id] = event_id
+
+            if missing_member_event_ids:
+                # If we have some memebr events we haven't seen, look them up
+                # and fetch push rules for them if appropriate.
+                logger.debug("Found new member events %r", missing_member_event_ids)
+                yield self._update_rules_with_member_event_ids(
+                    ret_rules_by_user, missing_member_event_ids, state_group, event
+                )
+
+        if logger.isEnabledFor(logging.DEBUG):
+            logger.debug(
+                "Returning push rules for %r %r",
+                self.room_id, ret_rules_by_user.keys(),
+            )
+        defer.returnValue(ret_rules_by_user)
+
+    @defer.inlineCallbacks
+    def _update_rules_with_member_event_ids(self, ret_rules_by_user, member_event_ids,
+                                            state_group, event):
+        """Update the partially filled rules_by_user dict by fetching rules for
+        any newly joined users in the `member_event_ids` list.
+
+        Args:
+            ret_rules_by_user (dict): Partiallly filled dict of push rules. Gets
+                updated with any new rules.
+            member_event_ids (list): List of event ids for membership events that
+                have happened since the last time we filled rules_by_user
+            state_group: The state group we are currently computing push rules
+                for. Used when updating the cache.
+        """
+        sequence = self.sequence
+
+        rows = yield self.store._simple_select_many_batch(
+            table="room_memberships",
+            column="event_id",
+            iterable=member_event_ids.values(),
+            retcols=('user_id', 'membership', 'event_id'),
+            keyvalues={},
+            batch_size=500,
+            desc="_get_rules_for_member_event_ids",
+        )
+
+        members = {
+            row["event_id"]: (row["user_id"], row["membership"])
+            for row in rows
+        }
+
+        # If the event is a join event then it will be in current state evnts
+        # map but not in the DB, so we have to explicitly insert it.
+        if event.type == EventTypes.Member:
+            for event_id in member_event_ids.itervalues():
+                if event_id == event.event_id:
+                    members[event_id] = (event.state_key, event.membership)
+
+        if logger.isEnabledFor(logging.DEBUG):
+            logger.debug("Found members %r: %r", self.room_id, members.values())
+
+        interested_in_user_ids = set(
+            user_id for user_id, membership in members.itervalues()
+            if membership == Membership.JOIN
+        )
+
+        logger.debug("Joined: %r", interested_in_user_ids)
+
+        if_users_with_pushers = yield self.store.get_if_users_have_pushers(
+            interested_in_user_ids,
+            on_invalidate=self.invalidate_all_cb,
+        )
+
+        user_ids = set(
+            uid for uid, have_pusher in if_users_with_pushers.iteritems() if have_pusher
+        )
+
+        logger.debug("With pushers: %r", user_ids)
+
+        users_with_receipts = yield self.store.get_users_with_read_receipts_in_room(
+            self.room_id, on_invalidate=self.invalidate_all_cb,
+        )
+
+        logger.debug("With receipts: %r", users_with_receipts)
+
+        # any users with pushers must be ours: they have pushers
+        for uid in users_with_receipts:
+            if uid in interested_in_user_ids:
+                user_ids.add(uid)
+
+        rules_by_user = yield self.store.bulk_get_push_rules(
+            user_ids, on_invalidate=self.invalidate_all_cb,
+        )
+
+        ret_rules_by_user.update(
+            item for item in rules_by_user.iteritems() if item[0] is not None
+        )
+
+        self.update_cache(sequence, members, ret_rules_by_user, state_group)
+
+    def invalidate_all(self):
+        # Note: Don't hand this function directly to an invalidation callback
+        # as it keeps a reference to self and will stop this instance from being
+        # GC'd if it gets dropped from the rules_to_user cache. Instead use
+        # `self.invalidate_all_cb`
+        logger.debug("Invalidating RulesForRoom for %r", self.room_id)
+        self.sequence += 1
+        self.state_group = object()
+        self.member_map = {}
+        self.rules_by_user = {}
+
+    def update_cache(self, sequence, members, rules_by_user, state_group):
+        if sequence == self.sequence:
+            self.member_map.update(members)
+            self.rules_by_user = rules_by_user
+            self.state_group = state_group
+
+
+class _Invalidation(namedtuple("_Invalidation", ("cache", "room_id"))):
+    # We rely on _CacheContext implementing __eq__ and __hash__ sensibly,
+    # which namedtuple does for us (i.e. two _CacheContext are the same if
+    # their caches and keys match). This is important in particular to
+    # dedupe when we add callbacks to lru cache nodes, otherwise the number
+    # of callbacks would grow.
+    def __call__(self):
+        rules = self.cache.get(self.room_id, None, update_metrics=False)
+        if rules:
+            rules.invalidate_all()

synapse/push/emailpusher.py

@@ -21,7 +21,6 @@ import logging
 from synapse.util.metrics import Measure
 from synapse.util.logcontext import LoggingContext
 
-from mailer import Mailer
 
 logger = logging.getLogger(__name__)
 
@@ -56,8 +55,10 @@ class EmailPusher(object):
     This shares quite a bit of code with httpusher: it would be good to
     factor out the common parts
     """
-    def __init__(self, hs, pusherdict):
+    def __init__(self, hs, pusherdict, mailer):
         self.hs = hs
+        self.mailer = mailer
+
         self.store = self.hs.get_datastore()
         self.clock = self.hs.get_clock()
         self.pusher_id = pusherdict['id']
@@ -73,16 +74,6 @@ class EmailPusher(object):
 
         self.processing = False
 
-        if self.hs.config.email_enable_notifs:
-            if 'data' in pusherdict and 'brand' in pusherdict['data']:
-                app_name = pusherdict['data']['brand']
-            else:
-                app_name = self.hs.config.email_app_name
-
-            self.mailer = Mailer(self.hs, app_name)
-        else:
-            self.mailer = None
-
     @defer.inlineCallbacks
     def on_started(self):
         if self.mailer is not None:

synapse/push/httppusher.py

@@ -275,7 +275,7 @@ class HttpPusher(object):
         if event.type == 'm.room.member':
             d['notification']['membership'] = event.content['membership']
             d['notification']['user_is_target'] = event.state_key == self.user_id
-        if 'content' in event:
+        if not self.hs.config.push_redact_content and 'content' in event:
             d['notification']['content'] = event.content
 
         # We no longer send aliases separately, instead, we send the human

synapse/push/mailer.py

@@ -78,23 +78,17 @@ ALLOWED_ATTRS = {
 
 
 class Mailer(object):
-    def __init__(self, hs, app_name):
+    def __init__(self, hs, app_name, notif_template_html, notif_template_text):
         self.hs = hs
+        self.notif_template_html = notif_template_html
+        self.notif_template_text = notif_template_text
+
         self.store = self.hs.get_datastore()
         self.macaroon_gen = self.hs.get_macaroon_generator()
         self.state_handler = self.hs.get_state_handler()
-        loader = jinja2.FileSystemLoader(self.hs.config.email_template_dir)
         self.app_name = app_name
+
         logger.info("Created Mailer for app_name %s" % app_name)
-        env = jinja2.Environment(loader=loader)
-        env.filters["format_ts"] = format_ts_filter
-        env.filters["mxc_to_http"] = self.mxc_to_http_filter
-        self.notif_template_html = env.get_template(
-            self.hs.config.email_notif_template_html
-        )
-        self.notif_template_text = env.get_template(
-            self.hs.config.email_notif_template_text
-        )
 
     @defer.inlineCallbacks
     def send_notification_mail(self, app_id, user_id, email_address,
@@ -481,28 +475,6 @@ class Mailer(object):
             urllib.urlencode(params),
         )
 
-    def mxc_to_http_filter(self, value, width, height, resize_method="crop"):
-        if value[0:6] != "mxc://":
-            return ""
-
-        serverAndMediaId = value[6:]
-        fragment = None
-        if '#' in serverAndMediaId:
-            (serverAndMediaId, fragment) = serverAndMediaId.split('#', 1)
-            fragment = "#" + fragment
-
-        params = {
-            "width": width,
-            "height": height,
-            "method": resize_method,
-        }
-        return "%s_matrix/media/v1/thumbnail/%s?%s%s" % (
-            self.hs.config.public_baseurl,
-            serverAndMediaId,
-            urllib.urlencode(params),
-            fragment or "",
-        )
-
 
 def safe_markup(raw_html):
     return jinja2.Markup(bleach.linkify(bleach.clean(
@@ -543,3 +515,52 @@ def string_ordinal_total(s):
 
 def format_ts_filter(value, format):
     return time.strftime(format, time.localtime(value / 1000))
+
+
+def load_jinja2_templates(config):
+    """Load the jinja2 email templates from disk
+
+    Returns:
+        (notif_template_html, notif_template_text)
+    """
+    logger.info("loading jinja2")
+
+    loader = jinja2.FileSystemLoader(config.email_template_dir)
+    env = jinja2.Environment(loader=loader)
+    env.filters["format_ts"] = format_ts_filter
+    env.filters["mxc_to_http"] = _create_mxc_to_http_filter(config)
+
+    notif_template_html = env.get_template(
+        config.email_notif_template_html
+    )
+    notif_template_text = env.get_template(
+        config.email_notif_template_text
+    )
+
+    return notif_template_html, notif_template_text
+
+
+def _create_mxc_to_http_filter(config):
+    def mxc_to_http_filter(value, width, height, resize_method="crop"):
+        if value[0:6] != "mxc://":
+            return ""
+
+        serverAndMediaId = value[6:]
+        fragment = None
+        if '#' in serverAndMediaId:
+            (serverAndMediaId, fragment) = serverAndMediaId.split('#', 1)
+            fragment = "#" + fragment
+
+        params = {
+            "width": width,
+            "height": height,
+            "method": resize_method,
+        }
+        return "%s_matrix/media/v1/thumbnail/%s?%s%s" % (
+            config.public_baseurl,
+            serverAndMediaId,
+            urllib.urlencode(params),
+            fragment or "",
+        )
+
+    return mxc_to_http_filter

synapse/push/pusher.py

@@ -26,22 +26,54 @@ logger = logging.getLogger(__name__)
 # process works fine)
 try:
     from synapse.push.emailpusher import EmailPusher
+    from synapse.push.mailer import Mailer, load_jinja2_templates
 except:
     pass
 
 
-def create_pusher(hs, pusherdict):
+class PusherFactory(object):
-    logger.info("trying to create_pusher for %r", pusherdict)
+    def __init__(self, hs):
+        self.hs = hs
 
-    PUSHER_TYPES = {
+        self.pusher_types = {
             "http": HttpPusher,
         }
 
         logger.info("email enable notifs: %r", hs.config.email_enable_notifs)
         if hs.config.email_enable_notifs:
-        PUSHER_TYPES["email"] = EmailPusher
+            self.mailers = {}  # app_name -> Mailer
+
+            templates = load_jinja2_templates(hs.config)
+            self.notif_template_html, self.notif_template_text = templates
+
+            self.pusher_types["email"] = self._create_email_pusher
+
             logger.info("defined email pusher type")
 
-    if pusherdict['kind'] in PUSHER_TYPES:
+    def create_pusher(self, pusherdict):
+        logger.info("trying to create_pusher for %r", pusherdict)
+
+        if pusherdict['kind'] in self.pusher_types:
             logger.info("found pusher")
-        return PUSHER_TYPES[pusherdict['kind']](hs, pusherdict)
+            return self.pusher_types[pusherdict['kind']](self.hs, pusherdict)
+
+    def _create_email_pusher(self, _hs, pusherdict):
+        app_name = self._app_name_from_pusherdict(pusherdict)
+        mailer = self.mailers.get(app_name)
+        if not mailer:
+            mailer = Mailer(
+                hs=self.hs,
+                app_name=app_name,
+                notif_template_html=self.notif_template_html,
+                notif_template_text=self.notif_template_text,
+            )
+            self.mailers[app_name] = mailer
+        return EmailPusher(self.hs, pusherdict, mailer)
+
+    def _app_name_from_pusherdict(self, pusherdict):
+        if 'data' in pusherdict and 'brand' in pusherdict['data']:
+            app_name = pusherdict['data']['brand']
+        else:
+            app_name = self.hs.config.email_app_name
+
+        return app_name

synapse/push/pusherpool.py

@@ -16,7 +16,7 @@
 
 from twisted.internet import defer
 
-import pusher
+from .pusher import PusherFactory
 from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred
 from synapse.util.async import run_on_reactor
 
@@ -28,6 +28,7 @@ logger = logging.getLogger(__name__)
 class PusherPool:
     def __init__(self, _hs):
         self.hs = _hs
+        self.pusher_factory = PusherFactory(_hs)
         self.start_pushers = _hs.config.start_pushers
         self.store = self.hs.get_datastore()
         self.clock = self.hs.get_clock()
@@ -48,7 +49,7 @@ class PusherPool:
         # will then get pulled out of the database,
         # recreated, added and started: this means we have only one
         # code path adding pushers.
-        pusher.create_pusher(self.hs, {
+        self.pusher_factory.create_pusher({
             "id": None,
             "user_name": user_id,
             "kind": kind,
@@ -186,7 +187,7 @@ class PusherPool:
         logger.info("Starting %d pushers", len(pushers))
         for pusherdict in pushers:
             try:
-                p = pusher.create_pusher(self.hs, pusherdict)
+                p = self.pusher_factory.create_pusher(pusherdict)
             except:
                 logger.exception("Couldn't start a pusher: caught Exception")
                 continue

synapse/replication/slave/storage/appservice.py

@@ -16,6 +16,7 @@
 from ._base import BaseSlavedStore
 from synapse.storage import DataStore
 from synapse.config.appservice import load_appservices
+from synapse.storage.appservice import _make_exclusive_regex
 
 
 class SlavedApplicationServiceStore(BaseSlavedStore):
@@ -25,6 +26,7 @@ class SlavedApplicationServiceStore(BaseSlavedStore):
             hs.config.server_name,
             hs.config.app_service_config_files
         )
+        self.exclusive_user_regex = _make_exclusive_regex(self.services_cache)
 
     get_app_service_by_token = DataStore.get_app_service_by_token.__func__
     get_app_service_by_user_id = DataStore.get_app_service_by_user_id.__func__
@@ -38,3 +40,6 @@ class SlavedApplicationServiceStore(BaseSlavedStore):
     get_appservice_state = DataStore.get_appservice_state.__func__
     set_appservice_last_pos = DataStore.set_appservice_last_pos.__func__
     set_appservice_state = DataStore.set_appservice_state.__func__
+    get_if_app_services_interested_in_user = (
+        DataStore.get_if_app_services_interested_in_user.__func__
+    )

synapse/replication/slave/storage/client_ips.py

@@ -0,0 +1,48 @@
+# -*- 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 ._base import BaseSlavedStore
+from synapse.storage.client_ips import LAST_SEEN_GRANULARITY
+from synapse.util.caches import CACHE_SIZE_FACTOR
+from synapse.util.caches.descriptors import Cache
+
+
+class SlavedClientIpStore(BaseSlavedStore):
+    def __init__(self, db_conn, hs):
+        super(SlavedClientIpStore, self).__init__(db_conn, hs)
+
+        self.client_ip_last_seen = Cache(
+            name="client_ip_last_seen",
+            keylen=4,
+            max_entries=50000 * CACHE_SIZE_FACTOR,
+        )
+
+    def insert_client_ip(self, user, access_token, ip, user_agent, device_id):
+        now = int(self._clock.time_msec())
+        user_id = user.to_string()
+        key = (user_id, access_token, ip)
+
+        try:
+            last_seen = self.client_ip_last_seen.get(key)
+        except KeyError:
+            last_seen = None
+
+        # Rate-limited inserts
+        if last_seen is not None and (now - last_seen) < LAST_SEEN_GRANULARITY:
+            return
+
+        self.hs.get_tcp_replication().send_user_ip(
+            user_id, access_token, ip, user_agent, device_id, now
+        )

synapse/replication/slave/storage/devices.py

@@ -16,6 +16,7 @@
 from ._base import BaseSlavedStore
 from ._slaved_id_tracker import SlavedIdTracker
 from synapse.storage import DataStore
+from synapse.storage.end_to_end_keys import EndToEndKeyStore
 from synapse.util.caches.stream_change_cache import StreamChangeCache
 
 
@@ -45,6 +46,7 @@ class SlavedDeviceStore(BaseSlavedStore):
     _mark_as_sent_devices_by_remote_txn = (
         DataStore._mark_as_sent_devices_by_remote_txn.__func__
     )
+    count_e2e_one_time_keys = EndToEndKeyStore.__dict__["count_e2e_one_time_keys"]
 
     def stream_positions(self):
         result = super(SlavedDeviceStore, self).stream_positions()

synapse/replication/slave/storage/events.py

@@ -108,6 +108,8 @@ class SlavedEventStore(BaseSlavedStore):
     get_current_state_ids = (
         StateStore.__dict__["get_current_state_ids"]
     )
+    get_state_group_delta = StateStore.__dict__["get_state_group_delta"]
+    _get_joined_hosts_cache = RoomMemberStore.__dict__["_get_joined_hosts_cache"]
     has_room_changed_since = DataStore.has_room_changed_since.__func__
 
     get_unread_push_actions_for_user_in_range_for_http = (
@@ -151,8 +153,7 @@ class SlavedEventStore(BaseSlavedStore):
     get_room_events_stream_for_rooms = (
         DataStore.get_room_events_stream_for_rooms.__func__
     )
-    is_host_joined = DataStore.is_host_joined.__func__
+    is_host_joined = RoomMemberStore.__dict__["is_host_joined"]
-    _is_host_joined = RoomMemberStore.__dict__["_is_host_joined"]
     get_stream_token_for_event = DataStore.get_stream_token_for_event.__func__
 
     _set_before_and_after = staticmethod(DataStore._set_before_and_after)

synapse/replication/tcp/client.py

@@ -20,6 +20,7 @@ from twisted.internet.protocol import ReconnectingClientFactory
 
 from .commands import (
     FederationAckCommand, UserSyncCommand, RemovePusherCommand, InvalidateCacheCommand,
+    UserIpCommand,
 )
 from .protocol import ClientReplicationStreamProtocol
 
@@ -178,6 +179,12 @@ class ReplicationClientHandler(object):
         cmd = InvalidateCacheCommand(cache_func.__name__, keys)
         self.send_command(cmd)
 
+    def send_user_ip(self, user_id, access_token, ip, user_agent, device_id, last_seen):
+        """Tell the master that the user made a request.
+        """
+        cmd = UserIpCommand(user_id, access_token, ip, user_agent, device_id, last_seen)
+        self.send_command(cmd)
+
     def await_sync(self, data):
         """Returns a deferred that is resolved when we receive a SYNC command
         with given data.

synapse/replication/tcp/commands.py

@@ -304,6 +304,36 @@ class InvalidateCacheCommand(Command):
         return " ".join((self.cache_func, json.dumps(self.keys)))
 
 
+class UserIpCommand(Command):
+    """Sent periodically when a worker sees activity from a client.
+
+    Format::
+
+        USER_IP <user_id>, <access_token>, <ip>, <device_id>, <last_seen>, <user_agent>
+    """
+    NAME = "USER_IP"
+
+    def __init__(self, user_id, access_token, ip, user_agent, device_id, last_seen):
+        self.user_id = user_id
+        self.access_token = access_token
+        self.ip = ip
+        self.user_agent = user_agent
+        self.device_id = device_id
+        self.last_seen = last_seen
+
+    @classmethod
+    def from_line(cls, line):
+        user_id, access_token, ip, device_id, last_seen, user_agent = line.split(" ", 5)
+
+        return cls(user_id, access_token, ip, user_agent, device_id, int(last_seen))
+
+    def to_line(self):
+        return " ".join((
+            self.user_id, self.access_token, self.ip, self.device_id,
+            str(self.last_seen), self.user_agent,
+        ))
+
+
 # Map of command name to command type.
 COMMAND_MAP = {
     cmd.NAME: cmd
@@ -320,6 +350,7 @@ COMMAND_MAP = {
         SyncCommand,
         RemovePusherCommand,
         InvalidateCacheCommand,
+        UserIpCommand,
     )
 }
 
@@ -342,5 +373,6 @@ VALID_CLIENT_COMMANDS = (
     FederationAckCommand.NAME,
     RemovePusherCommand.NAME,
     InvalidateCacheCommand.NAME,
+    UserIpCommand.NAME,
     ErrorCommand.NAME,
 )

synapse/replication/tcp/protocol.py

@@ -406,6 +406,12 @@ class ServerReplicationStreamProtocol(BaseReplicationStreamProtocol):
     def on_INVALIDATE_CACHE(self, cmd):
         self.streamer.on_invalidate_cache(cmd.cache_func, cmd.keys)
 
+    def on_USER_IP(self, cmd):
+        self.streamer.on_user_ip(
+            cmd.user_id, cmd.access_token, cmd.ip, cmd.user_agent, cmd.device_id,
+            cmd.last_seen,
+        )
+
     @defer.inlineCallbacks
     def subscribe_to_stream(self, stream_name, token):
         """Subscribe the remote to a streams.

synapse/replication/tcp/resource.py

@@ -35,6 +35,7 @@ user_sync_counter = metrics.register_counter("user_sync")
 federation_ack_counter = metrics.register_counter("federation_ack")
 remove_pusher_counter = metrics.register_counter("remove_pusher")
 invalidate_cache_counter = metrics.register_counter("invalidate_cache")
+user_ip_cache_counter = metrics.register_counter("user_ip_cache")
 
 logger = logging.getLogger(__name__)
 
@@ -67,6 +68,7 @@ class ReplicationStreamer(object):
         self.store = hs.get_datastore()
         self.presence_handler = hs.get_presence_handler()
         self.clock = hs.get_clock()
+        self.notifier = hs.get_notifier()
 
         # Current connections.
         self.connections = []
@@ -99,7 +101,7 @@ class ReplicationStreamer(object):
         if not hs.config.send_federation:
             self.federation_sender = hs.get_federation_sender()
 
-        hs.get_notifier().add_replication_callback(self.on_notifier_poke)
+        self.notifier.add_replication_callback(self.on_notifier_poke)
 
         # Keeps track of whether we are currently checking for updates
         self.is_looping = False
@@ -237,6 +239,15 @@ class ReplicationStreamer(object):
         invalidate_cache_counter.inc()
         getattr(self.store, cache_func).invalidate(tuple(keys))
 
+    @measure_func("repl.on_user_ip")
+    def on_user_ip(self, user_id, access_token, ip, user_agent, device_id, last_seen):
+        """The client saw a user request
+        """
+        user_ip_cache_counter.inc()
+        self.store.insert_client_ip(
+            user_id, access_token, ip, user_agent, device_id, last_seen,
+        )
+
     def send_sync_to_all_connections(self, data):
         """Sends a SYNC command to all clients.
 

synapse/replication/tcp/streams.py

@@ -112,6 +112,12 @@ AccountDataStreamRow = namedtuple("AccountDataStream", (
     "data_type",  # str
     "data",  # dict
 ))
+CurrentStateDeltaStreamRow = namedtuple("CurrentStateDeltaStream", (
+    "room_id",  # str
+    "type",  # str
+    "state_key",  # str
+    "event_id",  # str, optional
+))
 
 
 class Stream(object):
@@ -443,6 +449,21 @@ class AccountDataStream(Stream):
         defer.returnValue(results)
 
 
+class CurrentStateDeltaStream(Stream):
+    """Current state for a room was changed
+    """
+    NAME = "current_state_deltas"
+    ROW_TYPE = CurrentStateDeltaStreamRow
+
+    def __init__(self, hs):
+        store = hs.get_datastore()
+
+        self.current_token = store.get_max_current_state_delta_stream_id
+        self.update_function = store.get_all_updated_current_state_deltas
+
+        super(CurrentStateDeltaStream, self).__init__(hs)
+
+
 STREAMS_MAP = {
     stream.NAME: stream
     for stream in (
@@ -460,5 +481,6 @@ STREAMS_MAP = {
         FederationStream,
         TagAccountDataStream,
         AccountDataStream,
+        CurrentStateDeltaStream,
     )
 }

synapse/rest/__init__.py

@@ -51,6 +51,7 @@ from synapse.rest.client.v2_alpha import (
     devices,
     thirdparty,
     sendtodevice,
+    user_directory,
 )
 
 from synapse.http.server import JsonResource
@@ -100,3 +101,4 @@ class ClientRestResource(JsonResource):
         devices.register_servlets(hs, client_resource)
         thirdparty.register_servlets(hs, client_resource)
         sendtodevice.register_servlets(hs, client_resource)
+        user_directory.register_servlets(hs, client_resource)

synapse/rest/client/v1/admin.py

@@ -15,8 +15,9 @@
 
 from twisted.internet import defer
 
+from synapse.api.constants import Membership
 from synapse.api.errors import AuthError, SynapseError
-from synapse.types import UserID
+from synapse.types import UserID, create_requester
 from synapse.http.servlet import parse_json_object_from_request
 
 from .base import ClientV1RestServlet, client_path_patterns
@@ -157,6 +158,142 @@ class DeactivateAccountRestServlet(ClientV1RestServlet):
         defer.returnValue((200, {}))
 
 
+class ShutdownRoomRestServlet(ClientV1RestServlet):
+    """Shuts down a room by removing all local users from the room and blocking
+    all future invites and joins to the room. Any local aliases will be repointed
+    to a new room created by `new_room_user_id` and kicked users will be auto
+    joined to the new room.
+    """
+    PATTERNS = client_path_patterns("/admin/shutdown_room/(?P<room_id>[^/]+)")
+
+    DEFAULT_MESSAGE = (
+        "Sharing illegal content on this server is not permitted and rooms in"
+        " violatation will be blocked."
+    )
+
+    def __init__(self, hs):
+        super(ShutdownRoomRestServlet, self).__init__(hs)
+        self.store = hs.get_datastore()
+        self.handlers = hs.get_handlers()
+        self.state = hs.get_state_handler()
+
+    @defer.inlineCallbacks
+    def on_POST(self, request, room_id):
+        requester = yield self.auth.get_user_by_req(request)
+        is_admin = yield self.auth.is_server_admin(requester.user)
+        if not is_admin:
+            raise AuthError(403, "You are not a server admin")
+
+        content = parse_json_object_from_request(request)
+
+        new_room_user_id = content.get("new_room_user_id")
+        if not new_room_user_id:
+            raise SynapseError(400, "Please provide field `new_room_user_id`")
+
+        room_creator_requester = create_requester(new_room_user_id)
+
+        message = content.get("message", self.DEFAULT_MESSAGE)
+        room_name = content.get("room_name", "Content Violation Notification")
+
+        info = yield self.handlers.room_creation_handler.create_room(
+            room_creator_requester,
+            config={
+                "preset": "public_chat",
+                "name": room_name,
+                "power_level_content_override": {
+                    "users_default": -10,
+                },
+            },
+            ratelimit=False,
+        )
+        new_room_id = info["room_id"]
+
+        msg_handler = self.handlers.message_handler
+        yield msg_handler.create_and_send_nonmember_event(
+            room_creator_requester,
+            {
+                "type": "m.room.message",
+                "content": {"body": message, "msgtype": "m.text"},
+                "room_id": new_room_id,
+                "sender": new_room_user_id,
+            },
+            ratelimit=False,
+        )
+
+        requester_user_id = requester.user.to_string()
+
+        logger.info("Shutting down room %r", room_id)
+
+        yield self.store.block_room(room_id, requester_user_id)
+
+        users = yield self.state.get_current_user_in_room(room_id)
+        kicked_users = []
+        for user_id in users:
+            if not self.hs.is_mine_id(user_id):
+                continue
+
+            logger.info("Kicking %r from %r...", user_id, room_id)
+
+            target_requester = create_requester(user_id)
+            yield self.handlers.room_member_handler.update_membership(
+                requester=target_requester,
+                target=target_requester.user,
+                room_id=room_id,
+                action=Membership.LEAVE,
+                content={},
+                ratelimit=False
+            )
+
+            yield self.handlers.room_member_handler.forget(target_requester.user, room_id)
+
+            yield self.handlers.room_member_handler.update_membership(
+                requester=target_requester,
+                target=target_requester.user,
+                room_id=new_room_id,
+                action=Membership.JOIN,
+                content={},
+                ratelimit=False
+            )
+
+            kicked_users.append(user_id)
+
+        aliases_for_room = yield self.store.get_aliases_for_room(room_id)
+
+        yield self.store.update_aliases_for_room(
+            room_id, new_room_id, requester_user_id
+        )
+
+        defer.returnValue((200, {
+            "kicked_users": kicked_users,
+            "local_aliases": aliases_for_room,
+            "new_room_id": new_room_id,
+        }))
+
+
+class QuarantineMediaInRoom(ClientV1RestServlet):
+    """Quarantines all media in a room so that no one can download it via
+    this server.
+    """
+    PATTERNS = client_path_patterns("/admin/quarantine_media/(?P<room_id>[^/]+)")
+
+    def __init__(self, hs):
+        super(QuarantineMediaInRoom, self).__init__(hs)
+        self.store = hs.get_datastore()
+
+    @defer.inlineCallbacks
+    def on_POST(self, request, room_id):
+        requester = yield self.auth.get_user_by_req(request)
+        is_admin = yield self.auth.is_server_admin(requester.user)
+        if not is_admin:
+            raise AuthError(403, "You are not a server admin")
+
+        num_quarantined = yield self.store.quarantine_media_ids_in_room(
+            room_id, requester.user.to_string(),
+        )
+
+        defer.returnValue((200, {"num_quarantined": num_quarantined}))
+
+
 class ResetPasswordRestServlet(ClientV1RestServlet):
     """Post request to allow an administrator reset password for a user.
     This need a user have a administrator access in Synapse.
@@ -353,3 +490,5 @@ def register_servlets(hs, http_server):
     ResetPasswordRestServlet(hs).register(http_server)
     GetUsersPaginatedRestServlet(hs).register(http_server)
     SearchUsersRestServlet(hs).register(http_server)
+    ShutdownRoomRestServlet(hs).register(http_server)
+    QuarantineMediaInRoom(hs).register(http_server)

synapse/rest/client/v2_alpha/sync.py

@@ -192,6 +192,7 @@ class SyncRestServlet(RestServlet):
                 "invite": invited,
                 "leave": archived,
             },
+            "device_one_time_keys_count": sync_result.device_one_time_keys_count,
             "next_batch": sync_result.next_batch.to_string(),
         }
 

synapse/rest/client/v2_alpha/user_directory.py

@@ -0,0 +1,79 @@
+# -*- 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.
+
+import logging
+
+from twisted.internet import defer
+
+from synapse.api.errors import SynapseError
+from synapse.http.servlet import RestServlet, parse_json_object_from_request
+from ._base import client_v2_patterns
+
+logger = logging.getLogger(__name__)
+
+
+class UserDirectorySearchRestServlet(RestServlet):
+    PATTERNS = client_v2_patterns("/user_directory/search$")
+
+    def __init__(self, hs):
+        """
+        Args:
+            hs (synapse.server.HomeServer): server
+        """
+        super(UserDirectorySearchRestServlet, self).__init__()
+        self.hs = hs
+        self.auth = hs.get_auth()
+        self.user_directory_handler = hs.get_user_directory_handler()
+
+    @defer.inlineCallbacks
+    def on_POST(self, request):
+        """Searches for users in directory
+
+        Returns:
+            dict of the form::
+
+                {
+                    "limited": <bool>,  # whether there were more results or not
+                    "results": [  # Ordered by best match first
+                        {
+                            "user_id": <user_id>,
+                            "display_name": <display_name>,
+                            "avatar_url": <avatar_url>
+                        }
+                    ]
+                }
+        """
+        requester = yield self.auth.get_user_by_req(request, allow_guest=False)
+        user_id = requester.user.to_string()
+
+        body = parse_json_object_from_request(request)
+
+        limit = body.get("limit", 10)
+        limit = min(limit, 50)
+
+        try:
+            search_term = body["search_term"]
+        except:
+            raise SynapseError(400, "`search_term` is required field")
+
+        results = yield self.user_directory_handler.search_users(
+            user_id, search_term, limit,
+        )
+
+        defer.returnValue((200, results))
+
+
+def register_servlets(hs, http_server):
+    UserDirectorySearchRestServlet(hs).register(http_server)

synapse/rest/media/v1/download_resource.py

@@ -66,13 +66,18 @@ class DownloadResource(Resource):
     @defer.inlineCallbacks
     def _respond_local_file(self, request, media_id, name):
         media_info = yield self.store.get_local_media(media_id)
-        if not media_info:
+        if not media_info or media_info["quarantined_by"]:
             respond_404(request)
             return
 
         media_type = media_info["media_type"]
         media_length = media_info["media_length"]
         upload_name = name if name else media_info["upload_name"]
+        if media_info["url_cache"]:
+            # TODO: Check the file still exists, if it doesn't we can redownload
+            # it from the url `media_info["url_cache"]`
+            file_path = self.filepaths.url_cache_filepath(media_id)
+        else:
             file_path = self.filepaths.local_media_filepath(media_id)
 
         yield respond_with_file(

synapse/rest/media/v1/filepath.py

@@ -71,3 +71,21 @@ class MediaFilePaths(object):
             self.base_path, "remote_thumbnail", server_name,
             file_id[0:2], file_id[2:4], file_id[4:],
         )
+
+    def url_cache_filepath(self, media_id):
+        return os.path.join(
+            self.base_path, "url_cache",
+            media_id[0:2], media_id[2:4], media_id[4:]
+        )
+
+    def url_cache_thumbnail(self, media_id, width, height, content_type,
+                            method):
+        top_level_type, sub_type = content_type.split("/")
+        file_name = "%i-%i-%s-%s-%s" % (
+            width, height, top_level_type, sub_type, method
+        )
+        return os.path.join(
+            self.base_path, "url_cache_thumbnails",
+            media_id[0:2], media_id[2:4], media_id[4:],
+            file_name
+        )

synapse/rest/media/v1/media_repository.py

@@ -135,6 +135,8 @@ class MediaRepository(object):
             media_info = yield self._download_remote_file(
                 server_name, media_id
             )
+        elif media_info["quarantined_by"]:
+            raise NotFoundError()
         else:
             self.recently_accessed_remotes.add((server_name, media_id))
             yield self.store.update_cached_last_access_time(
@@ -184,6 +186,7 @@ class MediaRepository(object):
                     raise
                 except NotRetryingDestination:
                     logger.warn("Not retrying destination %r", server_name)
+                    raise SynapseError(502, "Failed to fetch remote media")
                 except Exception:
                     logger.exception("Failed to fetch remote media %s/%s",
                                      server_name, media_id)
@@ -323,13 +326,17 @@ class MediaRepository(object):
             defer.returnValue(t_path)
 
     @defer.inlineCallbacks
-    def _generate_local_thumbnails(self, media_id, media_info):
+    def _generate_local_thumbnails(self, media_id, media_info, url_cache=False):
         media_type = media_info["media_type"]
         requirements = self._get_thumbnail_requirements(media_type)
         if not requirements:
             return
 
+        if url_cache:
+            input_path = self.filepaths.url_cache_filepath(media_id)
+        else:
             input_path = self.filepaths.local_media_filepath(media_id)
+
         thumbnailer = Thumbnailer(input_path)
         m_width = thumbnailer.width
         m_height = thumbnailer.height
@@ -357,6 +364,11 @@ class MediaRepository(object):
 
             for t_width, t_height, t_type in scales:
                 t_method = "scale"
+                if url_cache:
+                    t_path = self.filepaths.url_cache_thumbnail(
+                        media_id, t_width, t_height, t_type, t_method
+                    )
+                else:
                     t_path = self.filepaths.local_media_thumbnail(
                         media_id, t_width, t_height, t_type, t_method
                     )
@@ -374,6 +386,11 @@ class MediaRepository(object):
                     # thumbnail.
                     continue
                 t_method = "crop"
+                if url_cache:
+                    t_path = self.filepaths.url_cache_thumbnail(
+                        media_id, t_width, t_height, t_type, t_method
+                    )
+                else:
                     t_path = self.filepaths.local_media_thumbnail(
                         media_id, t_width, t_height, t_type, t_method
                     )

synapse/rest/media/v1/preview_url_resource.py

@@ -164,7 +164,7 @@ class PreviewUrlResource(Resource):
 
         if _is_media(media_info['media_type']):
             dims = yield self.media_repo._generate_local_thumbnails(
-                media_info['filesystem_id'], media_info
+                media_info['filesystem_id'], media_info, url_cache=True,
             )
 
             og = {
@@ -210,7 +210,7 @@ class PreviewUrlResource(Resource):
                 if _is_media(image_info['media_type']):
                     # TODO: make sure we don't choke on white-on-transparent images
                     dims = yield self.media_repo._generate_local_thumbnails(
-                        image_info['filesystem_id'], image_info
+                        image_info['filesystem_id'], image_info, url_cache=True,
                     )
                     if dims:
                         og["og:image:width"] = dims['width']
@@ -256,7 +256,7 @@ class PreviewUrlResource(Resource):
         # XXX: horrible duplication with base_resource's _download_remote_file()
         file_id = random_string(24)
 
-        fname = self.filepaths.local_media_filepath(file_id)
+        fname = self.filepaths.url_cache_filepath(file_id)
         self.media_repo._makedirs(fname)
 
         try:
@@ -303,6 +303,7 @@ class PreviewUrlResource(Resource):
                 upload_name=download_name,
                 media_length=length,
                 user_id=user,
+                url_cache=url,
             )
 
         except Exception as e:
@@ -434,6 +435,8 @@ def _calc_og(tree, media_uri):
                 for el in _iterate_over_text(tree.find("body"), *TAGS_TO_REMOVE)
             )
             og['og:description'] = summarize_paragraphs(text_nodes)
+    else:
+        og['og:description'] = summarize_paragraphs([og['og:description']])
 
     # TODO: delete the url downloads to stop diskfilling,
     # as we only ever cared about its OG

synapse/rest/media/v1/thumbnail_resource.py

@@ -81,7 +81,7 @@ class ThumbnailResource(Resource):
                                  method, m_type):
         media_info = yield self.store.get_local_media(media_id)
 
-        if not media_info:
+        if not media_info or media_info["quarantined_by"]:
             respond_404(request)
             return
 
@@ -101,6 +101,13 @@ class ThumbnailResource(Resource):
             t_type = thumbnail_info["thumbnail_type"]
             t_method = thumbnail_info["thumbnail_method"]
 
+            if media_info["url_cache"]:
+                # TODO: Check the file still exists, if it doesn't we can redownload
+                # it from the url `media_info["url_cache"]`
+                file_path = self.filepaths.url_cache_thumbnail(
+                    media_id, t_width, t_height, t_type, t_method,
+                )
+            else:
                 file_path = self.filepaths.local_media_thumbnail(
                     media_id, t_width, t_height, t_type, t_method,
                 )
@@ -117,7 +124,7 @@ class ThumbnailResource(Resource):
                                             desired_type):
         media_info = yield self.store.get_local_media(media_id)
 
-        if not media_info:
+        if not media_info or media_info["quarantined_by"]:
             respond_404(request)
             return
 
@@ -134,8 +141,17 @@ class ThumbnailResource(Resource):
             t_type = info["thumbnail_type"] == desired_type
 
             if t_w and t_h and t_method and t_type:
+                if media_info["url_cache"]:
+                    # TODO: Check the file still exists, if it doesn't we can redownload
+                    # it from the url `media_info["url_cache"]`
+                    file_path = self.filepaths.url_cache_thumbnail(
+                        media_id, desired_width, desired_height, desired_type,
+                        desired_method,
+                    )
+                else:
                     file_path = self.filepaths.local_media_thumbnail(
-                    media_id, desired_width, desired_height, desired_type, desired_method,
+                        media_id, desired_width, desired_height, desired_type,
+                        desired_method,
                     )
                 yield respond_with_file(request, desired_type, file_path)
                 return

synapse/server.py

@@ -49,9 +49,11 @@ from synapse.handlers.events import EventHandler, EventStreamHandler
 from synapse.handlers.initial_sync import InitialSyncHandler
 from synapse.handlers.receipts import ReceiptsHandler
 from synapse.handlers.read_marker import ReadMarkerHandler
+from synapse.handlers.user_directory import UserDirectoyHandler
 from synapse.http.client import SimpleHttpClient, InsecureInterceptableContextFactory
 from synapse.http.matrixfederationclient import MatrixFederationHttpClient
 from synapse.notifier import Notifier
+from synapse.push.action_generator import ActionGenerator
 from synapse.push.pusherpool import PusherPool
 from synapse.rest.media.v1.media_repository import MediaRepository
 from synapse.state import StateHandler
@@ -135,6 +137,8 @@ class HomeServer(object):
         'macaroon_generator',
         'tcp_replication',
         'read_marker_handler',
+        'action_generator',
+        'user_directory_handler',
     ]
 
     def __init__(self, hostname, **kwargs):
@@ -299,6 +303,12 @@ class HomeServer(object):
     def build_tcp_replication(self):
         raise NotImplementedError()
 
+    def build_action_generator(self):
+        return ActionGenerator(self)
+
+    def build_user_directory_handler(self):
+        return UserDirectoyHandler(self)
+
     def remove_pusher(self, app_id, push_key, user_id):
         return self.get_pusherpool().remove_pusher(app_id, push_key, user_id)
 

synapse/state.py

@@ -24,13 +24,13 @@ from synapse.api.constants import EventTypes
 from synapse.api.errors import AuthError
 from synapse.events.snapshot import EventContext
 from synapse.util.async import Linearizer
+from synapse.util.caches import CACHE_SIZE_FACTOR
 
 from collections import namedtuple
 from frozendict import frozendict
 
 import logging
 import hashlib
-import os
 
 logger = logging.getLogger(__name__)
 
@@ -38,9 +38,6 @@ logger = logging.getLogger(__name__)
 KeyStateTuple = namedtuple("KeyStateTuple", ("context", "type", "state_key"))
 
 
-CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
-
-
 SIZE_OF_CACHE = int(100000 * CACHE_SIZE_FACTOR)
 EVICTION_TIMEOUT_SECONDS = 60 * 60
 
@@ -170,9 +167,7 @@ class StateHandler(object):
             latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
         logger.debug("calling resolve_state_groups from get_current_user_in_room")
         entry = yield self.resolve_state_groups(room_id, latest_event_ids)
-        joined_users = yield self.store.get_joined_users_from_state(
+        joined_users = yield self.store.get_joined_users_from_state(room_id, entry)
-            room_id, entry.state_id, entry.state
-        )
         defer.returnValue(joined_users)
 
     @defer.inlineCallbacks
@@ -181,9 +176,7 @@ class StateHandler(object):
             latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
         logger.debug("calling resolve_state_groups from get_current_hosts_in_room")
         entry = yield self.resolve_state_groups(room_id, latest_event_ids)
-        joined_hosts = yield self.store.get_joined_hosts(
+        joined_hosts = yield self.store.get_joined_hosts(room_id, entry)
-            room_id, entry.state_id, entry.state
-        )
         defer.returnValue(joined_hosts)
 
     @defer.inlineCallbacks
@@ -195,12 +188,12 @@ class StateHandler(object):
         Returns:
             synapse.events.snapshot.EventContext:
         """
-        context = EventContext()
 
         if event.internal_metadata.is_outlier():
             # If this is an outlier, then we know it shouldn't have any current
             # state. Certainly store.get_current_state won't return any, and
             # persisting the event won't store the state group.
+            context = EventContext()
             if old_state:
                 context.prev_state_ids = {
                     (s.type, s.state_key): s.event_id for s in old_state
@@ -219,6 +212,7 @@ class StateHandler(object):
             defer.returnValue(context)
 
         if old_state:
+            context = EventContext()
             context.prev_state_ids = {
                 (s.type, s.state_key): s.event_id for s in old_state
             }
@@ -239,19 +233,13 @@ class StateHandler(object):
             defer.returnValue(context)
 
         logger.debug("calling resolve_state_groups from compute_event_context")
-        if event.is_state():
-            entry = yield self.resolve_state_groups(
-                event.room_id, [e for e, _ in event.prev_events],
-                event_type=event.type,
-                state_key=event.state_key,
-            )
-        else:
         entry = yield self.resolve_state_groups(
             event.room_id, [e for e, _ in event.prev_events],
         )
 
         curr_state = entry.state
 
+        context = EventContext()
         context.prev_state_ids = curr_state
         if event.is_state():
             context.state_group = self.store.get_next_state_group()
@@ -264,10 +252,14 @@ class StateHandler(object):
             context.current_state_ids = dict(context.prev_state_ids)
             context.current_state_ids[key] = event.event_id
 
+            if entry.state_group:
+                context.prev_group = entry.state_group
+                context.delta_ids = {
+                    key: event.event_id
+                }
+            elif entry.prev_group:
                 context.prev_group = entry.prev_group
-            context.delta_ids = entry.delta_ids
+                context.delta_ids = dict(entry.delta_ids)
-            if context.delta_ids is not None:
-                context.delta_ids = dict(context.delta_ids)
                 context.delta_ids[key] = event.event_id
         else:
             if entry.state_group is None:
@@ -284,7 +276,7 @@ class StateHandler(object):
 
     @defer.inlineCallbacks
     @log_function
-    def resolve_state_groups(self, room_id, event_ids, event_type=None, state_key=""):
+    def resolve_state_groups(self, room_id, event_ids):
         """ Given a list of event_ids this method fetches the state at each
         event, resolves conflicts between them and returns them.
 
@@ -309,11 +301,13 @@ class StateHandler(object):
         if len(group_names) == 1:
             name, state_list = state_groups_ids.items().pop()
 
+            prev_group, delta_ids = yield self.store.get_state_group_delta(name)
+
             defer.returnValue(_StateCacheEntry(
                 state=state_list,
                 state_group=name,
-                prev_group=name,
+                prev_group=prev_group,
-                delta_ids={},
+                delta_ids=delta_ids,
             ))
 
         with (yield self.resolve_linearizer.queue(group_names)):
@@ -357,20 +351,18 @@ class StateHandler(object):
                 if new_state_event_ids == frozenset(e_id for e_id in events):
                     state_group = sg
                     break
-            if state_group is None:
+
-                # Worker instances don't have access to this method, but we want
+            # TODO: We want to create a state group for this set of events, to
-                # to set the state_group on the main instance to increase cache
+            # increase cache hits, but we need to make sure that it doesn't
-                # hits.
+            # end up as a prev_group without being added to the database
-                if hasattr(self.store, "get_next_state_group"):
-                    state_group = self.store.get_next_state_group()
 
             prev_group = None
             delta_ids = None
-            for old_group, old_ids in state_groups_ids.items():
+            for old_group, old_ids in state_groups_ids.iteritems():
-                if not set(new_state.iterkeys()) - set(old_ids.iterkeys()):
+                if not set(new_state) - set(old_ids):
                     n_delta_ids = {
                         k: v
-                        for k, v in new_state.items()
+                        for k, v in new_state.iteritems()
                         if old_ids.get(k) != v
                     }
                     if not delta_ids or len(n_delta_ids) < len(delta_ids):

synapse/storage/__init__.py

@@ -49,6 +49,7 @@ from .tags import TagsStore
 from .account_data import AccountDataStore
 from .openid import OpenIdStore
 from .client_ips import ClientIpStore
+from .user_directory import UserDirectoryStore
 
 from .util.id_generators import IdGenerator, StreamIdGenerator, ChainedIdGenerator
 from .engines import PostgresEngine
@@ -86,6 +87,7 @@ class DataStore(RoomMemberStore, RoomStore,
                 ClientIpStore,
                 DeviceStore,
                 DeviceInboxStore,
+                UserDirectoryStore,
                 ):
 
     def __init__(self, db_conn, hs):
@@ -221,11 +223,24 @@ class DataStore(RoomMemberStore, RoomStore,
             "DeviceListFederationStreamChangeCache", device_list_max,
         )
 
+        curr_state_delta_prefill, min_curr_state_delta_id = self._get_cache_dict(
+            db_conn, "current_state_delta_stream",
+            entity_column="room_id",
+            stream_column="stream_id",
+            max_value=events_max,  # As we share the stream id with events token
+            limit=1000,
+        )
+        self._curr_state_delta_stream_cache = StreamChangeCache(
+            "_curr_state_delta_stream_cache", min_curr_state_delta_id,
+            prefilled_cache=curr_state_delta_prefill,
+        )
+
         cur = LoggingTransaction(
             db_conn.cursor(),
             name="_find_stream_orderings_for_times_txn",
             database_engine=self.database_engine,
-            after_callbacks=[]
+            after_callbacks=[],
+            final_callbacks=[],
         )
         self._find_stream_orderings_for_times_txn(cur)
         cur.close()
@@ -289,16 +304,6 @@ class DataStore(RoomMemberStore, RoomStore,
         ret = yield self.runInteraction("count_users", _count_users)
         defer.returnValue(ret)
 
-    def get_user_ip_and_agents(self, user):
-        return self._simple_select_list(
-            table="user_ips",
-            keyvalues={"user_id": user.to_string()},
-            retcols=[
-                "access_token", "ip", "user_agent", "last_seen"
-            ],
-            desc="get_user_ip_and_agents",
-        )
-
     def get_users(self):
         """Function to reterive a list of users in users table.
 

synapse/storage/_base.py

@@ -16,6 +16,7 @@ import logging
 
 from synapse.api.errors import StoreError
 from synapse.util.logcontext import LoggingContext, PreserveLoggingContext
+from synapse.util.caches import CACHE_SIZE_FACTOR
 from synapse.util.caches.dictionary_cache import DictionaryCache
 from synapse.util.caches.descriptors import Cache
 from synapse.storage.engines import PostgresEngine
@@ -27,10 +28,6 @@ from twisted.internet import defer
 import sys
 import time
 import threading
-import os
-
-
-CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
 
 
 logger = logging.getLogger(__name__)
@@ -52,13 +49,17 @@ class LoggingTransaction(object):
     """An object that almost-transparently proxies for the 'txn' object
     passed to the constructor. Adds logging and metrics to the .execute()
     method."""
-    __slots__ = ["txn", "name", "database_engine", "after_callbacks"]
+    __slots__ = [
+        "txn", "name", "database_engine", "after_callbacks", "final_callbacks",
+    ]
 
-    def __init__(self, txn, name, database_engine, after_callbacks):
+    def __init__(self, txn, name, database_engine, after_callbacks,
+                 final_callbacks):
         object.__setattr__(self, "txn", txn)
         object.__setattr__(self, "name", name)
         object.__setattr__(self, "database_engine", database_engine)
         object.__setattr__(self, "after_callbacks", after_callbacks)
+        object.__setattr__(self, "final_callbacks", final_callbacks)
 
     def call_after(self, callback, *args, **kwargs):
         """Call the given callback on the main twisted thread after the
@@ -67,6 +68,9 @@ class LoggingTransaction(object):
         """
         self.after_callbacks.append((callback, args, kwargs))
 
+    def call_finally(self, callback, *args, **kwargs):
+        self.final_callbacks.append((callback, args, kwargs))
+
     def __getattr__(self, name):
         return getattr(self.txn, name)
 
@@ -217,8 +221,8 @@ class SQLBaseStore(object):
 
         self._clock.looping_call(loop, 10000)
 
-    def _new_transaction(self, conn, desc, after_callbacks, logging_context,
+    def _new_transaction(self, conn, desc, after_callbacks, final_callbacks,
-                         func, *args, **kwargs):
+                         logging_context, func, *args, **kwargs):
         start = time.time() * 1000
         txn_id = self._TXN_ID
 
@@ -237,7 +241,8 @@ class SQLBaseStore(object):
                 try:
                     txn = conn.cursor()
                     txn = LoggingTransaction(
-                        txn, name, self.database_engine, after_callbacks
+                        txn, name, self.database_engine, after_callbacks,
+                        final_callbacks,
                     )
                     r = func(txn, *args, **kwargs)
                     conn.commit()
@@ -298,6 +303,7 @@ class SQLBaseStore(object):
         start_time = time.time() * 1000
 
         after_callbacks = []
+        final_callbacks = []
 
         def inner_func(conn, *args, **kwargs):
             with LoggingContext("runInteraction") as context:
@@ -309,7 +315,7 @@ class SQLBaseStore(object):
 
                 current_context.copy_to(context)
                 return self._new_transaction(
-                    conn, desc, after_callbacks, current_context,
+                    conn, desc, after_callbacks, final_callbacks, current_context,
                     func, *args, **kwargs
                 )
 
@@ -318,9 +324,13 @@ class SQLBaseStore(object):
                 result = yield self._db_pool.runWithConnection(
                     inner_func, *args, **kwargs
                 )
-        finally:
+
             for after_callback, after_args, after_kwargs in after_callbacks:
                 after_callback(*after_args, **after_kwargs)
+        finally:
+            for after_callback, after_args, after_kwargs in final_callbacks:
+                after_callback(*after_args, **after_kwargs)
+
         defer.returnValue(result)
 
     @defer.inlineCallbacks
@@ -425,6 +435,11 @@ class SQLBaseStore(object):
 
         txn.execute(sql, vals)
 
+    def _simple_insert_many(self, table, values, desc):
+        return self.runInteraction(
+            desc, self._simple_insert_many_txn, table, values
+        )
+
     @staticmethod
     def _simple_insert_many_txn(txn, table, values):
         if not values:
@@ -936,7 +951,7 @@ class SQLBaseStore(object):
             # __exit__ called after the transaction finishes.
             ctx = self._cache_id_gen.get_next()
             stream_id = ctx.__enter__()
-            txn.call_after(ctx.__exit__, None, None, None)
+            txn.call_finally(ctx.__exit__, None, None, None)
             txn.call_after(self.hs.get_notifier().on_new_replication_data)
 
             self._simple_insert_txn(

synapse/storage/appservice.py

@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
+import re
 import simplejson as json
 from twisted.internet import defer
 
@@ -26,6 +27,25 @@ from ._base import SQLBaseStore
 logger = logging.getLogger(__name__)
 
 
+def _make_exclusive_regex(services_cache):
+    # We precompie a regex constructed from all the regexes that the AS's
+    # have registered for exclusive users.
+    exclusive_user_regexes = [
+        regex.pattern
+        for service in services_cache
+        for regex in service.get_exlusive_user_regexes()
+    ]
+    if exclusive_user_regexes:
+        exclusive_user_regex = "|".join("(" + r + ")" for r in exclusive_user_regexes)
+        exclusive_user_regex = re.compile(exclusive_user_regex)
+    else:
+        # We handle this case specially otherwise the constructed regex
+        # will always match
+        exclusive_user_regex = None
+
+    return exclusive_user_regex
+
+
 class ApplicationServiceStore(SQLBaseStore):
 
     def __init__(self, hs):
@@ -35,16 +55,17 @@ class ApplicationServiceStore(SQLBaseStore):
             hs.hostname,
             hs.config.app_service_config_files
         )
+        self.exclusive_user_regex = _make_exclusive_regex(self.services_cache)
 
     def get_app_services(self):
         return self.services_cache
 
     def get_if_app_services_interested_in_user(self, user_id):
-        """Check if the user is one associated with an app service
+        """Check if the user is one associated with an app service (exclusively)
         """
-        for service in self.services_cache:
+        if self.exclusive_user_regex:
-            if service.is_interested_in_user(user_id):
+            return bool(self.exclusive_user_regex.match(user_id))
-                return True
+        else:
             return False
 
     def get_app_service_by_user_id(self, user_id):

synapse/storage/client_ips.py

@@ -15,11 +15,14 @@
 
 import logging
 
-from twisted.internet import defer
+from twisted.internet import defer, reactor
 
 from ._base import Cache
 from . import background_updates
 
+from synapse.util.caches import CACHE_SIZE_FACTOR
+
+
 logger = logging.getLogger(__name__)
 
 # Number of msec of granularity to store the user IP 'last seen' time. Smaller
@@ -33,7 +36,7 @@ class ClientIpStore(background_updates.BackgroundUpdateStore):
         self.client_ip_last_seen = Cache(
             name="client_ip_last_seen",
             keylen=4,
-            max_entries=5000,
+            max_entries=50000 * CACHE_SIZE_FACTOR,
         )
 
         super(ClientIpStore, self).__init__(hs)
@@ -45,7 +48,14 @@ class ClientIpStore(background_updates.BackgroundUpdateStore):
             columns=["user_id", "device_id", "last_seen"],
         )
 
-    @defer.inlineCallbacks
+        # (user_id, access_token, ip) -> (user_agent, device_id, last_seen)
+        self._batch_row_update = {}
+
+        self._client_ip_looper = self._clock.looping_call(
+            self._update_client_ips_batch, 5 * 1000
+        )
+        reactor.addSystemEventTrigger("before", "shutdown", self._update_client_ips_batch)
+
     def insert_client_ip(self, user, access_token, ip, user_agent, device_id):
         now = int(self._clock.time_msec())
         key = (user.to_string(), access_token, ip)
@@ -57,34 +67,48 @@ class ClientIpStore(background_updates.BackgroundUpdateStore):
 
         # Rate-limited inserts
         if last_seen is not None and (now - last_seen) < LAST_SEEN_GRANULARITY:
-            defer.returnValue(None)
+            return
 
         self.client_ip_last_seen.prefill(key, now)
 
-        # It's safe not to lock here: a) no unique constraint,
+        self._batch_row_update[key] = (user_agent, device_id, now)
-        # b) LAST_SEEN_GRANULARITY makes concurrent updates incredibly unlikely
+
-        yield self._simple_upsert(
+    def _update_client_ips_batch(self):
-            "user_ips",
+        to_update = self._batch_row_update
+        self._batch_row_update = {}
+        return self.runInteraction(
+            "_update_client_ips_batch", self._update_client_ips_batch_txn, to_update
+        )
+
+    def _update_client_ips_batch_txn(self, txn, to_update):
+        self.database_engine.lock_table(txn, "user_ips")
+
+        for entry in to_update.iteritems():
+            (user_id, access_token, ip), (user_agent, device_id, last_seen) = entry
+
+            self._simple_upsert_txn(
+                txn,
+                table="user_ips",
                 keyvalues={
-                "user_id": user.to_string(),
+                    "user_id": user_id,
                     "access_token": access_token,
                     "ip": ip,
                     "user_agent": user_agent,
                     "device_id": device_id,
                 },
                 values={
-                "last_seen": now,
+                    "last_seen": last_seen,
                 },
-            desc="insert_client_ip",
                 lock=False,
             )
 
     @defer.inlineCallbacks
-    def get_last_client_ip_by_device(self, devices):
+    def get_last_client_ip_by_device(self, user_id, device_id):
         """For each device_id listed, give the user_ip it was last seen on
 
         Args:
-            devices (iterable[(str, str)]):  list of (user_id, device_id) pairs
+            user_id (str)
+            device_id (str): If None fetches all devices for the user
 
         Returns:
             defer.Deferred: resolves to a dict, where the keys
@@ -95,6 +119,7 @@ class ClientIpStore(background_updates.BackgroundUpdateStore):
         res = yield self.runInteraction(
             "get_last_client_ip_by_device",
             self._get_last_client_ip_by_device_txn,
+            user_id, device_id,
             retcols=(
                 "user_id",
                 "access_token",
@@ -103,19 +128,30 @@ class ClientIpStore(background_updates.BackgroundUpdateStore):
                 "device_id",
                 "last_seen",
             ),
-            devices=devices
         )
 
         ret = {(d["user_id"], d["device_id"]): d for d in res}
+        for key in self._batch_row_update:
+            uid, access_token, ip = key
+            if uid == user_id:
+                user_agent, did, last_seen = self._batch_row_update[key]
+                if not device_id or did == device_id:
+                    ret[(user_id, device_id)] = {
+                        "user_id": user_id,
+                        "access_token": access_token,
+                        "ip": ip,
+                        "user_agent": user_agent,
+                        "device_id": did,
+                        "last_seen": last_seen,
+                    }
         defer.returnValue(ret)
 
     @classmethod
-    def _get_last_client_ip_by_device_txn(cls, txn, devices, retcols):
+    def _get_last_client_ip_by_device_txn(cls, txn, user_id, device_id, retcols):
         where_clauses = []
         bindings = []
-        for (user_id, device_id) in devices:
         if device_id is None:
-                where_clauses.append("(user_id = ? AND device_id IS NULL)")
+            where_clauses.append("user_id = ?")
             bindings.extend((user_id, ))
         else:
             where_clauses.append("(user_id = ? AND device_id = ?)")
@@ -147,3 +183,37 @@ class ClientIpStore(background_updates.BackgroundUpdateStore):
 
         txn.execute(sql, bindings)
         return cls.cursor_to_dict(txn)
+
+    @defer.inlineCallbacks
+    def get_user_ip_and_agents(self, user):
+        user_id = user.to_string()
+        results = {}
+
+        for key in self._batch_row_update:
+            uid, access_token, ip = key
+            if uid == user_id:
+                user_agent, _, last_seen = self._batch_row_update[key]
+                results[(access_token, ip)] = (user_agent, last_seen)
+
+        rows = yield self._simple_select_list(
+            table="user_ips",
+            keyvalues={"user_id": user_id},
+            retcols=[
+                "access_token", "ip", "user_agent", "last_seen"
+            ],
+            desc="get_user_ip_and_agents",
+        )
+
+        results.update(
+            ((row["access_token"], row["ip"]), (row["user_agent"], row["last_seen"]))
+            for row in rows
+        )
+        defer.returnValue(list(
+            {
+                "access_token": access_token,
+                "ip": ip,
+                "user_agent": user_agent,
+                "last_seen": last_seen,
+            }
+            for (access_token, ip), (user_agent, last_seen) in results.iteritems()
+        ))

synapse/storage/devices.py

@@ -368,7 +368,7 @@ class DeviceStore(SQLBaseStore):
 
         prev_sent_id_sql = """
             SELECT coalesce(max(stream_id), 0) as stream_id
-            FROM device_lists_outbound_pokes
+            FROM device_lists_outbound_last_success
             WHERE destination = ? AND user_id = ? AND stream_id <= ?
         """
 
@@ -510,32 +510,43 @@ class DeviceStore(SQLBaseStore):
         )
 
     def _mark_as_sent_devices_by_remote_txn(self, txn, destination, stream_id):
-        # First we DELETE all rows such that only the latest row for each
+        # We update the device_lists_outbound_last_success with the successfully
-        # (destination, user_id is left. We do this by selecting first and
+        # poked users. We do the join to see which users need to be inserted and
-        # deleting.
+        # which updated.
         sql = """
-            SELECT user_id, coalesce(max(stream_id), 0) FROM device_lists_outbound_pokes
+            SELECT user_id, coalesce(max(o.stream_id), 0), (max(s.stream_id) IS NOT NULL)
-            WHERE destination = ? AND stream_id <= ?
+            FROM device_lists_outbound_pokes as o
+            LEFT JOIN device_lists_outbound_last_success as s
+                USING (destination, user_id)
+            WHERE destination = ? AND o.stream_id <= ?
             GROUP BY user_id
-            HAVING count(*) > 1
         """
         txn.execute(sql, (destination, stream_id,))
         rows = txn.fetchall()
 
         sql = """
-            DELETE FROM device_lists_outbound_pokes
+            UPDATE device_lists_outbound_last_success
-            WHERE destination = ? AND user_id = ? AND stream_id < ?
+            SET stream_id = ?
+            WHERE destination = ? AND user_id = ?
         """
         txn.executemany(
-            sql, ((destination, row[0], row[1],) for row in rows)
+            sql, ((row[1], destination, row[0],) for row in rows if row[2])
         )
 
-        # Mark everything that is left as sent
         sql = """
-            UPDATE device_lists_outbound_pokes SET sent = ?
+            INSERT INTO device_lists_outbound_last_success
+            (destination, user_id, stream_id) VALUES (?, ?, ?)
+        """
+        txn.executemany(
+            sql, ((destination, row[0], row[1],) for row in rows if not row[2])
+        )
+
+        # Delete all sent outbound pokes
+        sql = """
+            DELETE FROM device_lists_outbound_pokes
             WHERE destination = ? AND stream_id <= ?
         """
-        txn.execute(sql, (True, destination, stream_id,))
+        txn.execute(sql, (destination, stream_id,))
 
     @defer.inlineCallbacks
     def get_user_whose_devices_changed(self, from_key):
@@ -670,6 +681,14 @@ class DeviceStore(SQLBaseStore):
                 )
             )
 
+            # Since we've deleted unsent deltas, we need to remove the entry
+            # of last successful sent so that the prev_ids are correctly set.
+            sql = """
+                DELETE FROM device_lists_outbound_last_success
+                WHERE destination = ? AND user_id = ?
+            """
+            txn.executemany(sql, ((row[0], row[1]) for row in rows))
+
             logger.info("Pruned %d device list outbound pokes", txn.rowcount)
 
         return self.runInteraction(

synapse/storage/directory.py

@@ -170,3 +170,17 @@ class DirectoryStore(SQLBaseStore):
             "room_alias",
             desc="get_aliases_for_room",
         )
+
+    def update_aliases_for_room(self, old_room_id, new_room_id, creator):
+        def _update_aliases_for_room_txn(txn):
+            sql = "UPDATE room_aliases SET room_id = ?, creator = ? WHERE room_id = ?"
+            txn.execute(sql, (new_room_id, creator, old_room_id,))
+            self._invalidate_cache_and_stream(
+                txn, self.get_aliases_for_room, (old_room_id,)
+            )
+            self._invalidate_cache_and_stream(
+                txn, self.get_aliases_for_room, (new_room_id,)
+            )
+        return self.runInteraction(
+            "_update_aliases_for_room_txn", _update_aliases_for_room_txn
+        )

synapse/storage/end_to_end_keys.py

@@ -185,8 +185,8 @@ class EndToEndKeyStore(SQLBaseStore):
                     for algorithm, key_id, json_bytes in new_keys
                 ],
             )
-            txn.call_after(
+            self._invalidate_cache_and_stream(
-                self.count_e2e_one_time_keys.invalidate, (user_id, device_id,)
+                txn, self.count_e2e_one_time_keys, (user_id, device_id,)
             )
         yield self.runInteraction(
             "add_e2e_one_time_keys_insert", _add_e2e_one_time_keys
@@ -237,24 +237,29 @@ class EndToEndKeyStore(SQLBaseStore):
             )
             for user_id, device_id, algorithm, key_id in delete:
                 txn.execute(sql, (user_id, device_id, algorithm, key_id))
-                txn.call_after(
+                self._invalidate_cache_and_stream(
-                    self.count_e2e_one_time_keys.invalidate, (user_id, device_id,)
+                    txn, self.count_e2e_one_time_keys, (user_id, device_id,)
                 )
             return result
         return self.runInteraction(
             "claim_e2e_one_time_keys", _claim_e2e_one_time_keys
         )
 
-    @defer.inlineCallbacks
     def delete_e2e_keys_by_device(self, user_id, device_id):
-        yield self._simple_delete(
+        def delete_e2e_keys_by_device_txn(txn):
+            self._simple_delete_txn(
+                txn,
                 table="e2e_device_keys_json",
                 keyvalues={"user_id": user_id, "device_id": device_id},
-            desc="delete_e2e_device_keys_by_device"
             )
-        yield self._simple_delete(
+            self._simple_delete_txn(
+                txn,
                 table="e2e_one_time_keys_json",
                 keyvalues={"user_id": user_id, "device_id": device_id},
-            desc="delete_e2e_one_time_keys_by_device"
             )
-        self.count_e2e_one_time_keys.invalidate((user_id, device_id,))
+            self._invalidate_cache_and_stream(
+                txn, self.count_e2e_one_time_keys, (user_id, device_id,)
+            )
+        return self.runInteraction(
+            "delete_e2e_keys_by_device", delete_e2e_keys_by_device_txn
+        )

synapse/storage/event_federation.py

@@ -37,24 +37,54 @@ class EventFederationStore(SQLBaseStore):
     and backfilling from another server respectively.
     """
 
+    EVENT_AUTH_STATE_ONLY = "event_auth_state_only"
+
     def __init__(self, hs):
         super(EventFederationStore, self).__init__(hs)
 
+        self.register_background_update_handler(
+            self.EVENT_AUTH_STATE_ONLY,
+            self._background_delete_non_state_event_auth,
+        )
+
         hs.get_clock().looping_call(
             self._delete_old_forward_extrem_cache, 60 * 60 * 1000
         )
 
-    def get_auth_chain(self, event_ids):
+    def get_auth_chain(self, event_ids, include_given=False):
-        return self.get_auth_chain_ids(event_ids).addCallback(self._get_events)
+        """Get auth events for given event_ids. The events *must* be state events.
 
-    def get_auth_chain_ids(self, event_ids):
+        Args:
+            event_ids (list): state events
+            include_given (bool): include the given events in result
+
+        Returns:
+            list of events
+        """
+        return self.get_auth_chain_ids(
+            event_ids, include_given=include_given,
+        ).addCallback(self._get_events)
+
+    def get_auth_chain_ids(self, event_ids, include_given=False):
+        """Get auth events for given event_ids. The events *must* be state events.
+
+        Args:
+            event_ids (list): state events
+            include_given (bool): include the given events in result
+
+        Returns:
+            list of event_ids
+        """
         return self.runInteraction(
             "get_auth_chain_ids",
             self._get_auth_chain_ids_txn,
-            event_ids
+            event_ids, include_given
         )
 
-    def _get_auth_chain_ids_txn(self, txn, event_ids):
+    def _get_auth_chain_ids_txn(self, txn, event_ids, include_given):
+        if include_given:
+            results = set(event_ids)
+        else:
             results = set()
 
         base_sql = (
@@ -504,3 +534,52 @@ class EventFederationStore(SQLBaseStore):
 
         txn.execute(query, (room_id,))
         txn.call_after(self.get_latest_event_ids_in_room.invalidate, (room_id,))
+
+    @defer.inlineCallbacks
+    def _background_delete_non_state_event_auth(self, progress, batch_size):
+        def delete_event_auth(txn):
+            target_min_stream_id = progress.get("target_min_stream_id_inclusive")
+            max_stream_id = progress.get("max_stream_id_exclusive")
+
+            if not target_min_stream_id or not max_stream_id:
+                txn.execute("SELECT COALESCE(MIN(stream_ordering), 0) FROM events")
+                rows = txn.fetchall()
+                target_min_stream_id = rows[0][0]
+
+                txn.execute("SELECT COALESCE(MAX(stream_ordering), 0) FROM events")
+                rows = txn.fetchall()
+                max_stream_id = rows[0][0]
+
+            min_stream_id = max_stream_id - batch_size
+
+            sql = """
+                DELETE FROM event_auth
+                WHERE event_id IN (
+                    SELECT event_id FROM events
+                    LEFT JOIN state_events USING (room_id, event_id)
+                    WHERE ? <= stream_ordering AND stream_ordering < ?
+                        AND state_key IS null
+                )
+            """
+
+            txn.execute(sql, (min_stream_id, max_stream_id,))
+
+            new_progress = {
+                "target_min_stream_id_inclusive": target_min_stream_id,
+                "max_stream_id_exclusive": min_stream_id,
+            }
+
+            self._background_update_progress_txn(
+                txn, self.EVENT_AUTH_STATE_ONLY, new_progress
+            )
+
+            return min_stream_id >= target_min_stream_id
+
+        result = yield self.runInteraction(
+            self.EVENT_AUTH_STATE_ONLY, delete_event_auth
+        )
+
+        if not result:
+            yield self._end_background_update(self.EVENT_AUTH_STATE_ONLY)
+
+        defer.returnValue(batch_size)

synapse/storage/events.py

@@ -403,6 +403,11 @@ class EventsStore(SQLBaseStore):
                         (room_id, ), new_state
                     )
 
+                for room_id, latest_event_ids in new_forward_extremeties.iteritems():
+                    self.get_latest_event_ids_in_room.prefill(
+                        (room_id,), list(latest_event_ids)
+                    )
+
     @defer.inlineCallbacks
     def _calculate_new_extremeties(self, room_id, event_contexts, latest_event_ids):
         """Calculates the new forward extremeties for a room given events to
@@ -647,9 +652,10 @@ class EventsStore(SQLBaseStore):
                 list of the event ids which are the forward extremities.
 
         """
-        self._update_current_state_txn(txn, current_state_for_room)
-
         max_stream_order = events_and_contexts[-1][0].internal_metadata.stream_ordering
+
+        self._update_current_state_txn(txn, current_state_for_room, max_stream_order)
+
         self._update_forward_extremities_txn(
             txn,
             new_forward_extremities=new_forward_extremeties,
@@ -712,7 +718,7 @@ class EventsStore(SQLBaseStore):
             backfilled=backfilled,
         )
 
-    def _update_current_state_txn(self, txn, state_delta_by_room):
+    def _update_current_state_txn(self, txn, state_delta_by_room, max_stream_order):
         for room_id, current_state_tuple in state_delta_by_room.iteritems():
                 to_delete, to_insert, _ = current_state_tuple
                 txn.executemany(
@@ -734,6 +740,29 @@ class EventsStore(SQLBaseStore):
                     ],
                 )
 
+                state_deltas = {key: None for key in to_delete}
+                state_deltas.update(to_insert)
+
+                self._simple_insert_many_txn(
+                    txn,
+                    table="current_state_delta_stream",
+                    values=[
+                        {
+                            "stream_id": max_stream_order,
+                            "room_id": room_id,
+                            "type": key[0],
+                            "state_key": key[1],
+                            "event_id": ev_id,
+                            "prev_event_id": to_delete.get(key, None),
+                        }
+                        for key, ev_id in state_deltas.iteritems()
+                    ]
+                )
+
+                self._curr_state_delta_stream_cache.entity_has_changed(
+                    room_id, max_stream_order,
+                )
+
                 # Invalidate the various caches
 
                 # Figure out the changes of membership to invalidate the
@@ -742,11 +771,7 @@ class EventsStore(SQLBaseStore):
                 # and which we have added, then we invlidate the caches for all
                 # those users.
                 members_changed = set(
-                    state_key for ev_type, state_key in to_delete.iterkeys()
+                    state_key for ev_type, state_key in state_deltas
-                    if ev_type == EventTypes.Member
-                )
-                members_changed.update(
-                    state_key for ev_type, state_key in to_insert.iterkeys()
                     if ev_type == EventTypes.Member
                 )
 
@@ -755,6 +780,11 @@ class EventsStore(SQLBaseStore):
                         txn, self.get_rooms_for_user, (member,)
                     )
 
+                for host in set(get_domain_from_id(u) for u in members_changed):
+                    self._invalidate_cache_and_stream(
+                        txn, self.is_host_joined, (room_id, host)
+                    )
+
                 self._invalidate_cache_and_stream(
                     txn, self.get_users_in_room, (room_id,)
                 )
@@ -1119,6 +1149,7 @@ class EventsStore(SQLBaseStore):
                 }
                 for event, _ in events_and_contexts
                 for auth_id, _ in event.auth_events
+                if event.is_state()
             ],
         )
 
@@ -1418,7 +1449,7 @@ class EventsStore(SQLBaseStore):
                 ]
 
                 rows = self._new_transaction(
-                    conn, "do_fetch", [], None, self._fetch_event_rows, event_ids
+                    conn, "do_fetch", [], [], None, self._fetch_event_rows, event_ids
                 )
 
                 row_dict = {
@@ -2243,6 +2274,24 @@ class EventsStore(SQLBaseStore):
 
         defer.returnValue((int(res["topological_ordering"]), int(res["stream_ordering"])))
 
+    def get_max_current_state_delta_stream_id(self):
+        return self._stream_id_gen.get_current_token()
+
+    def get_all_updated_current_state_deltas(self, from_token, to_token, limit):
+        def get_all_updated_current_state_deltas_txn(txn):
+            sql = """
+                SELECT stream_id, room_id, type, state_key, event_id
+                FROM current_state_delta_stream
+                WHERE ? < stream_id AND stream_id <= ?
+                ORDER BY stream_id ASC LIMIT ?
+            """
+            txn.execute(sql, (from_token, to_token, limit))
+            return txn.fetchall()
+        return self.runInteraction(
+            "get_all_updated_current_state_deltas",
+            get_all_updated_current_state_deltas_txn,
+        )
+
 
 AllNewEventsResult = namedtuple("AllNewEventsResult", [
     "new_forward_events", "new_backfill_events",

synapse/storage/filtering.py

@@ -19,6 +19,7 @@ from ._base import SQLBaseStore
 from synapse.api.errors import SynapseError, Codes
 from synapse.util.caches.descriptors import cachedInlineCallbacks
 
+from canonicaljson import encode_canonical_json
 import simplejson as json
 
 
@@ -46,11 +47,20 @@ class FilteringStore(SQLBaseStore):
         defer.returnValue(json.loads(str(def_json).decode("utf-8")))
 
     def add_user_filter(self, user_localpart, user_filter):
-        def_json = json.dumps(user_filter).encode("utf-8")
+        def_json = encode_canonical_json(user_filter)
 
         # Need an atomic transaction to SELECT the maximal ID so far then
         # INSERT a new one
         def _do_txn(txn):
+            sql = (
+                "SELECT filter_id FROM user_filters "
+                "WHERE user_id = ? AND filter_json = ?"
+            )
+            txn.execute(sql, (user_localpart, def_json))
+            filter_id_response = txn.fetchone()
+            if filter_id_response is not None:
+                return filter_id_response[0]
+
             sql = (
                 "SELECT MAX(filter_id) FROM user_filters "
                 "WHERE user_id = ?"

synapse/storage/media_repository.py

@@ -30,13 +30,16 @@ class MediaRepositoryStore(SQLBaseStore):
         return self._simple_select_one(
             "local_media_repository",
             {"media_id": media_id},
-            ("media_type", "media_length", "upload_name", "created_ts"),
+            (
+                "media_type", "media_length", "upload_name", "created_ts",
+                "quarantined_by", "url_cache",
+            ),
             allow_none=True,
             desc="get_local_media",
         )
 
     def store_local_media(self, media_id, media_type, time_now_ms, upload_name,
-                          media_length, user_id):
+                          media_length, user_id, url_cache=None):
         return self._simple_insert(
             "local_media_repository",
             {
@@ -46,6 +49,7 @@ class MediaRepositoryStore(SQLBaseStore):
                 "upload_name": upload_name,
                 "media_length": media_length,
                 "user_id": user_id.to_string(),
+                "url_cache": url_cache,
             },
             desc="store_local_media",
         )
@@ -138,7 +142,7 @@ class MediaRepositoryStore(SQLBaseStore):
             {"media_origin": origin, "media_id": media_id},
             (
                 "media_type", "media_length", "upload_name", "created_ts",
-                "filesystem_id",
+                "filesystem_id", "quarantined_by",
             ),
             allow_none=True,
             desc="get_cached_remote_media",

synapse/storage/prepare_database.py

@@ -25,7 +25,7 @@ logger = logging.getLogger(__name__)
 
 # Remember to update this number every time a change is made to database
 # schema files, so the users will be informed on server restarts.
-SCHEMA_VERSION = 41
+SCHEMA_VERSION = 43
 
 dir_path = os.path.abspath(os.path.dirname(__file__))
 

synapse/storage/push_rule.py

@@ -49,7 +49,7 @@ def _load_rules(rawrules, enabled_map):
 
 
 class PushRuleStore(SQLBaseStore):
-    @cachedInlineCallbacks()
+    @cachedInlineCallbacks(max_entries=5000)
     def get_push_rules_for_user(self, user_id):
         rows = yield self._simple_select_list(
             table="push_rules",
@@ -73,7 +73,7 @@ class PushRuleStore(SQLBaseStore):
 
         defer.returnValue(rules)
 
-    @cachedInlineCallbacks()
+    @cachedInlineCallbacks(max_entries=5000)
     def get_push_rules_enabled_for_user(self, user_id):
         results = yield self._simple_select_list(
             table="push_rules_enable",

synapse/storage/receipts.py

@@ -45,7 +45,9 @@ class ReceiptsStore(SQLBaseStore):
             return
 
         # Returns an ObservableDeferred
-        res = self.get_users_with_read_receipts_in_room.cache.get((room_id,), None)
+        res = self.get_users_with_read_receipts_in_room.cache.get(
+            room_id, None, update_metrics=False,
+        )
 
         if res:
             if isinstance(res, defer.Deferred) and res.called:

synapse/storage/room.py

@@ -24,6 +24,7 @@ from .engines import PostgresEngine, Sqlite3Engine
 import collections
 import logging
 import ujson as json
+import re
 
 logger = logging.getLogger(__name__)
 
@@ -507,3 +508,98 @@ class RoomStore(SQLBaseStore):
             ))
         else:
             defer.returnValue(None)
+
+    @cached(max_entries=10000)
+    def is_room_blocked(self, room_id):
+        return self._simple_select_one_onecol(
+            table="blocked_rooms",
+            keyvalues={
+                "room_id": room_id,
+            },
+            retcol="1",
+            allow_none=True,
+            desc="is_room_blocked",
+        )
+
+    @defer.inlineCallbacks
+    def block_room(self, room_id, user_id):
+        yield self._simple_insert(
+            table="blocked_rooms",
+            values={
+                "room_id": room_id,
+                "user_id": user_id,
+            },
+            desc="block_room",
+        )
+        self.is_room_blocked.invalidate((room_id,))
+
+    def quarantine_media_ids_in_room(self, room_id, quarantined_by):
+        """For a room loops through all events with media and quarantines
+        the associated media
+        """
+        def _get_media_ids_in_room(txn):
+            mxc_re = re.compile("^mxc://([^/]+)/([^/#?]+)")
+
+            next_token = self.get_current_events_token() + 1
+
+            total_media_quarantined = 0
+
+            while next_token:
+                sql = """
+                    SELECT stream_ordering, content FROM events
+                    WHERE room_id = ?
+                        AND stream_ordering < ?
+                        AND contains_url = ? AND outlier = ?
+                    ORDER BY stream_ordering DESC
+                    LIMIT ?
+                """
+                txn.execute(sql, (room_id, next_token, True, False, 100))
+
+                next_token = None
+                local_media_mxcs = []
+                remote_media_mxcs = []
+                for stream_ordering, content_json in txn:
+                    next_token = stream_ordering
+                    content = json.loads(content_json)
+
+                    content_url = content.get("url")
+                    thumbnail_url = content.get("info", {}).get("thumbnail_url")
+
+                    for url in (content_url, thumbnail_url):
+                        if not url:
+                            continue
+                        matches = mxc_re.match(url)
+                        if matches:
+                            hostname = matches.group(1)
+                            media_id = matches.group(2)
+                            if hostname == self.hostname:
+                                local_media_mxcs.append(media_id)
+                            else:
+                                remote_media_mxcs.append((hostname, media_id))
+
+                # Now update all the tables to set the quarantined_by flag
+
+                txn.executemany("""
+                    UPDATE local_media_repository
+                    SET quarantined_by = ?
+                    WHERE media_id = ?
+                """, ((quarantined_by, media_id) for media_id in local_media_mxcs))
+
+                txn.executemany(
+                    """
+                        UPDATE remote_media_cache
+                        SET quarantined_by = ?
+                        WHERE media_origin AND media_id = ?
+                    """,
+                    (
+                        (quarantined_by, origin, media_id)
+                        for origin, media_id in remote_media_mxcs
+                    )
+                )
+
+                total_media_quarantined += len(local_media_mxcs)
+                total_media_quarantined += len(remote_media_mxcs)
+
+            return total_media_quarantined
+
+        return self.runInteraction("get_media_ids_in_room", _get_media_ids_in_room)

synapse/storage/roommember.py

@@ -18,6 +18,7 @@ from twisted.internet import defer
 from collections import namedtuple
 
 from ._base import SQLBaseStore
+from synapse.util.async import Linearizer
 from synapse.util.caches import intern_string
 from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
 from synapse.util.stringutils import to_ascii
@@ -392,7 +393,8 @@ class RoomMemberStore(SQLBaseStore):
             context=context,
         )
 
-    def get_joined_users_from_state(self, room_id, state_group, state_ids):
+    def get_joined_users_from_state(self, room_id, state_entry):
+        state_group = state_entry.state_group
         if not state_group:
             # If state_group is None it means it has yet to be assigned a
             # state group, i.e. we need to make sure that calls with a state_group
@@ -401,7 +403,7 @@ class RoomMemberStore(SQLBaseStore):
             state_group = object()
 
         return self._get_joined_users_from_context(
-            room_id, state_group, state_ids,
+            room_id, state_group, state_entry.state, context=state_entry,
         )
 
     @cachedInlineCallbacks(num_args=2, cache_context=True, iterable=True,
@@ -499,42 +501,40 @@ class RoomMemberStore(SQLBaseStore):
 
         defer.returnValue(users_in_room)
 
-    def is_host_joined(self, room_id, host, state_group, state_ids):
+    @cachedInlineCallbacks(max_entries=10000)
-        if not state_group:
+    def is_host_joined(self, room_id, host):
-            # If state_group is None it means it has yet to be assigned a
+        if '%' in host or '_' in host:
-            # state group, i.e. we need to make sure that calls with a state_group
+            raise Exception("Invalid host name")
-            # of None don't hit previous cached calls with a None state_group.
-            # To do this we set the state_group to a new object as object() != object()
-            state_group = object()
 
-        return self._is_host_joined(
+        sql = """
-            room_id, host, state_group, state_ids
+            SELECT state_key FROM current_state_events AS c
-        )
+            INNER JOIN room_memberships USING (event_id)
+            WHERE membership = 'join'
+                AND type = 'm.room.member'
+                AND c.room_id = ?
+                AND state_key LIKE ?
+            LIMIT 1
+        """
 
-    @cachedInlineCallbacks(num_args=3)
+        # We do need to be careful to ensure that host doesn't have any wild cards
-    def _is_host_joined(self, room_id, host, state_group, current_state_ids):
+        # in it, but we checked above for known ones and we'll check below that
-        # We don't use `state_group`, its there so that we can cache based
+        # the returned user actually has the correct domain.
-        # on it. However, its important that its never None, since two current_state's
+        like_clause = "%:" + host
-        # with a state_group of None are likely to be different.
-        # See bulk_get_push_rules_for_room for how we work around this.
-        assert state_group is not None
 
-        for (etype, state_key), event_id in current_state_ids.items():
+        rows = yield self._execute("is_host_joined", None, sql, room_id, like_clause)
-            if etype == EventTypes.Member:
-                try:
-                    if get_domain_from_id(state_key) != host:
-                        continue
-                except:
-                    logger.warn("state_key not user_id: %s", state_key)
-                    continue
-
-                event = yield self.get_event(event_id, allow_none=True)
-                if event and event.content["membership"] == Membership.JOIN:
-                    defer.returnValue(True)
 
+        if not rows:
             defer.returnValue(False)
 
-    def get_joined_hosts(self, room_id, state_group, state_ids):
+        user_id = rows[0][0]
+        if get_domain_from_id(user_id) != host:
+            # This can only happen if the host name has something funky in it
+            raise Exception("Invalid host name")
+
+        defer.returnValue(True)
+
+    def get_joined_hosts(self, room_id, state_entry):
+        state_group = state_entry.state_group
         if not state_group:
             # If state_group is None it means it has yet to be assigned a
             # state group, i.e. we need to make sure that calls with a state_group
@@ -543,33 +543,20 @@ class RoomMemberStore(SQLBaseStore):
             state_group = object()
 
         return self._get_joined_hosts(
-            room_id, state_group, state_ids
+            room_id, state_group, state_entry.state, state_entry=state_entry,
         )
 
     @cachedInlineCallbacks(num_args=2, max_entries=10000, iterable=True)
-    def _get_joined_hosts(self, room_id, state_group, current_state_ids):
+    # @defer.inlineCallbacks
+    def _get_joined_hosts(self, room_id, state_group, current_state_ids, state_entry):
         # We don't use `state_group`, its there so that we can cache based
         # on it. However, its important that its never None, since two current_state's
         # with a state_group of None are likely to be different.
         # See bulk_get_push_rules_for_room for how we work around this.
         assert state_group is not None
 
-        joined_hosts = set()
+        cache = self._get_joined_hosts_cache(room_id)
-        for etype, state_key in current_state_ids:
+        joined_hosts = yield cache.get_destinations(state_entry)
-            if etype == EventTypes.Member:
-                try:
-                    host = get_domain_from_id(state_key)
-                except:
-                    logger.warn("state_key not user_id: %s", state_key)
-                    continue
-
-                if host in joined_hosts:
-                    continue
-
-                event_id = current_state_ids[(etype, state_key)]
-                event = yield self.get_event(event_id, allow_none=True)
-                if event and event.content["membership"] == Membership.JOIN:
-                    joined_hosts.add(intern_string(host))
 
         defer.returnValue(joined_hosts)
 
@@ -647,3 +634,75 @@ class RoomMemberStore(SQLBaseStore):
             yield self._end_background_update(_MEMBERSHIP_PROFILE_UPDATE_NAME)
 
         defer.returnValue(result)
+
+    @cached(max_entries=10000, iterable=True)
+    def _get_joined_hosts_cache(self, room_id):
+        return _JoinedHostsCache(self, room_id)
+
+
+class _JoinedHostsCache(object):
+    """Cache for joined hosts in a room that is optimised to handle updates
+    via state deltas.
+    """
+
+    def __init__(self, store, room_id):
+        self.store = store
+        self.room_id = room_id
+
+        self.hosts_to_joined_users = {}
+
+        self.state_group = object()
+
+        self.linearizer = Linearizer("_JoinedHostsCache")
+
+        self._len = 0
+
+    @defer.inlineCallbacks
+    def get_destinations(self, state_entry):
+        """Get set of destinations for a state entry
+
+        Args:
+            state_entry(synapse.state._StateCacheEntry)
+        """
+        if state_entry.state_group == self.state_group:
+            defer.returnValue(frozenset(self.hosts_to_joined_users))
+
+        with (yield self.linearizer.queue(())):
+            if state_entry.state_group == self.state_group:
+                pass
+            elif state_entry.prev_group == self.state_group:
+                for (typ, state_key), event_id in state_entry.delta_ids.iteritems():
+                    if typ != EventTypes.Member:
+                        continue
+
+                    host = intern_string(get_domain_from_id(state_key))
+                    user_id = state_key
+                    known_joins = self.hosts_to_joined_users.setdefault(host, set())
+
+                    event = yield self.store.get_event(event_id)
+                    if event.membership == Membership.JOIN:
+                        known_joins.add(user_id)
+                    else:
+                        known_joins.discard(user_id)
+
+                        if not known_joins:
+                            self.hosts_to_joined_users.pop(host, None)
+            else:
+                joined_users = yield self.store.get_joined_users_from_state(
+                    self.room_id, state_entry,
+                )
+
+                self.hosts_to_joined_users = {}
+                for user_id in joined_users:
+                    host = intern_string(get_domain_from_id(user_id))
+                    self.hosts_to_joined_users.setdefault(host, set()).add(user_id)
+
+            if state_entry.state_group:
+                self.state_group = state_entry.state_group
+            else:
+                self.state_group = object()
+            self._len = sum(len(v) for v in self.hosts_to_joined_users.itervalues())
+        defer.returnValue(frozenset(self.hosts_to_joined_users))
+
+    def __len__(self):
+        return self._len

synapse/storage/schema/delta/42/current_state_delta.sql

@@ -0,0 +1,26 @@
+/* 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.
+ */
+
+
+CREATE TABLE current_state_delta_stream (
+    stream_id BIGINT NOT NULL,
+    room_id TEXT NOT NULL,
+    type TEXT NOT NULL,
+    state_key TEXT NOT NULL,
+    event_id TEXT,  -- Is null if the key was removed
+    prev_event_id TEXT  -- Is null if the key was added
+);
+
+CREATE INDEX current_state_delta_stream_idx ON current_state_delta_stream(stream_id);

synapse/storage/schema/delta/42/device_list_last_id.sql

@@ -0,0 +1,33 @@
+/* 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.
+ */
+
+
+-- Table of last stream_id that we sent to destination for user_id. This is
+-- used to fill out the `prev_id` fields of outbound device list updates.
+CREATE TABLE device_lists_outbound_last_success (
+    destination TEXT NOT NULL,
+    user_id TEXT NOT NULL,
+    stream_id BIGINT NOT NULL
+);
+
+INSERT INTO device_lists_outbound_last_success
+    SELECT destination, user_id, coalesce(max(stream_id), 0) as stream_id
+        FROM device_lists_outbound_pokes
+        WHERE sent = (1 = 1)  -- sqlite doesn't have inbuilt boolean values
+        GROUP BY destination, user_id;
+
+CREATE INDEX device_lists_outbound_last_success_idx ON device_lists_outbound_last_success(
+    destination, user_id, stream_id
+);

synapse/storage/schema/delta/42/event_auth_state_only.sql

@@ -0,0 +1,17 @@
+/* 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.
+ */
+
+INSERT INTO background_updates (update_name, progress_json) VALUES
+  ('event_auth_state_only', '{}');

synapse/storage/schema/delta/42/user_dir.py

@@ -0,0 +1,84 @@
+# 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.
+
+import logging
+
+from synapse.storage.prepare_database import get_statements
+from synapse.storage.engines import PostgresEngine, Sqlite3Engine
+
+logger = logging.getLogger(__name__)
+
+
+BOTH_TABLES = """
+CREATE TABLE user_directory_stream_pos (
+    Lock CHAR(1) NOT NULL DEFAULT 'X' UNIQUE,  -- Makes sure this table only has one row.
+    stream_id BIGINT,
+    CHECK (Lock='X')
+);
+
+INSERT INTO user_directory_stream_pos (stream_id) VALUES (null);
+
+CREATE TABLE user_directory (
+    user_id TEXT NOT NULL,
+    room_id TEXT NOT NULL,  -- A room_id that we know the user is joined to
+    display_name TEXT,
+    avatar_url TEXT
+);
+
+CREATE INDEX user_directory_room_idx ON user_directory(room_id);
+CREATE UNIQUE INDEX user_directory_user_idx ON user_directory(user_id);
+
+CREATE TABLE users_in_pubic_room (
+    user_id TEXT NOT NULL,
+    room_id TEXT NOT NULL  -- A room_id that we know is public
+);
+
+CREATE INDEX users_in_pubic_room_room_idx ON users_in_pubic_room(room_id);
+CREATE UNIQUE INDEX users_in_pubic_room_user_idx ON users_in_pubic_room(user_id);
+"""
+
+
+POSTGRES_TABLE = """
+CREATE TABLE user_directory_search (
+    user_id TEXT NOT NULL,
+    vector tsvector
+);
+
+CREATE INDEX user_directory_search_fts_idx ON user_directory_search USING gin(vector);
+CREATE UNIQUE INDEX user_directory_search_user_idx ON user_directory_search(user_id);
+"""
+
+
+SQLITE_TABLE = """
+CREATE VIRTUAL TABLE user_directory_search
+    USING fts4 ( user_id, value );
+"""
+
+
+def run_create(cur, database_engine, *args, **kwargs):
+    for statement in get_statements(BOTH_TABLES.splitlines()):
+        cur.execute(statement)
+
+    if isinstance(database_engine, PostgresEngine):
+        for statement in get_statements(POSTGRES_TABLE.splitlines()):
+            cur.execute(statement)
+    elif isinstance(database_engine, Sqlite3Engine):
+        for statement in get_statements(SQLITE_TABLE.splitlines()):
+            cur.execute(statement)
+    else:
+        raise Exception("Unrecognized database engine")
+
+
+def run_upgrade(*args, **kwargs):
+    pass

synapse/storage/schema/delta/43/blocked_rooms.sql

@@ -0,0 +1,21 @@
+/* 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.
+ */
+
+CREATE TABLE blocked_rooms (
+    room_id TEXT NOT NULL,
+    user_id TEXT NOT NULL  -- Admin who blocked the room
+);
+
+CREATE UNIQUE INDEX blocked_rooms_idx ON blocked_rooms(room_id);

synapse/storage/schema/delta/43/quarantine_media.sql

@@ -0,0 +1,17 @@
+/* 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.
+ */
+
+ALTER TABLE local_media_repository ADD COLUMN quarantined_by TEXT;
+ALTER TABLE remote_media_cache ADD COLUMN quarantined_by TEXT;

synapse/storage/schema/delta/43/url_cache.sql

@@ -0,0 +1,16 @@
+/* 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.
+ */
+
+ALTER TABLE local_media_repository ADD COLUMN url_cache TEXT;

synapse/storage/schema/delta/43/user_share.sql

@@ -0,0 +1,33 @@
+/* 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.
+ */
+
+-- Table keeping track of who shares a room with who. We only keep track
+-- of this for local users, so `user_id` is local users only (but we do keep track
+-- of which remote users share a room)
+CREATE TABLE users_who_share_rooms (
+    user_id TEXT NOT NULL,
+    other_user_id TEXT NOT NULL,
+    room_id TEXT NOT NULL,
+    share_private BOOLEAN NOT NULL  -- is the shared room private? i.e. they share a private room
+);
+
+
+CREATE UNIQUE INDEX users_who_share_rooms_u_idx ON users_who_share_rooms(user_id, other_user_id);
+CREATE INDEX users_who_share_rooms_r_idx ON users_who_share_rooms(room_id);
+CREATE INDEX users_who_share_rooms_o_idx ON users_who_share_rooms(other_user_id);
+
+
+-- Make sure that we popualte the table initially
+UPDATE user_directory_stream_pos SET stream_id = NULL;

synapse/storage/state.py

@@ -20,6 +20,7 @@ from synapse.util.stringutils import to_ascii
 from synapse.storage.engines import PostgresEngine
 
 from twisted.internet import defer
+from collections import namedtuple
 
 import logging
 
@@ -29,6 +30,16 @@ logger = logging.getLogger(__name__)
 MAX_STATE_DELTA_HOPS = 100
 
 
+class _GetStateGroupDelta(namedtuple("_GetStateGroupDelta", ("prev_group", "delta_ids"))):
+    """Return type of get_state_group_delta that implements __len__, which lets
+    us use the itrable flag when caching
+    """
+    __slots__ = []
+
+    def __len__(self):
+        return len(self.delta_ids) if self.delta_ids else 0
+
+
 class StateStore(SQLBaseStore):
     """ Keeps track of the state at a given event.
 
@@ -98,6 +109,46 @@ class StateStore(SQLBaseStore):
             _get_current_state_ids_txn,
         )
 
+    @cached(max_entries=10000, iterable=True)
+    def get_state_group_delta(self, state_group):
+        """Given a state group try to return a previous group and a delta between
+        the old and the new.
+
+        Returns:
+            (prev_group, delta_ids), where both may be None.
+        """
+        def _get_state_group_delta_txn(txn):
+            prev_group = self._simple_select_one_onecol_txn(
+                txn,
+                table="state_group_edges",
+                keyvalues={
+                    "state_group": state_group,
+                },
+                retcol="prev_state_group",
+                allow_none=True,
+            )
+
+            if not prev_group:
+                return _GetStateGroupDelta(None, None)
+
+            delta_ids = self._simple_select_list_txn(
+                txn,
+                table="state_groups_state",
+                keyvalues={
+                    "state_group": state_group,
+                },
+                retcols=("type", "state_key", "event_id",)
+            )
+
+            return _GetStateGroupDelta(prev_group, {
+                (row["type"], row["state_key"]): row["event_id"]
+                for row in delta_ids
+            })
+        return self.runInteraction(
+            "get_state_group_delta",
+            _get_state_group_delta_txn,
+        )
+
     @defer.inlineCallbacks
     def get_state_groups_ids(self, room_id, event_ids):
         if not event_ids:
@@ -184,6 +235,19 @@ class StateStore(SQLBaseStore):
             # We persist as a delta if we can, while also ensuring the chain
             # of deltas isn't tooo long, as otherwise read performance degrades.
             if context.prev_group:
+                is_in_db = self._simple_select_one_onecol_txn(
+                    txn,
+                    table="state_groups",
+                    keyvalues={"id": context.prev_group},
+                    retcol="id",
+                    allow_none=True,
+                )
+                if not is_in_db:
+                    raise Exception(
+                        "Trying to persist state with unpersisted prev_group: %r"
+                        % (context.prev_group,)
+                    )
+
                 potential_hops = self._count_state_group_hops_txn(
                     txn, context.prev_group
                 )
@@ -251,6 +315,12 @@ class StateStore(SQLBaseStore):
             ],
         )
 
+        for event_id, state_group_id in state_groups.iteritems():
+            txn.call_after(
+                self._get_state_group_for_event.prefill,
+                (event_id,), state_group_id
+            )
+
     def _count_state_group_hops_txn(self, txn, state_group):
         """Given a state group, count how many hops there are in the tree.
 
@@ -520,8 +590,8 @@ class StateStore(SQLBaseStore):
         state_map = yield self.get_state_ids_for_events([event_id], types)
         defer.returnValue(state_map[event_id])
 
-    @cached(num_args=2, max_entries=50000)
+    @cached(max_entries=50000)
-    def _get_state_group_for_event(self, room_id, event_id):
+    def _get_state_group_for_event(self, event_id):
         return self._simple_select_one_onecol(
             table="event_to_state_groups",
             keyvalues={
@@ -563,20 +633,22 @@ class StateStore(SQLBaseStore):
                 where a `state_key` of `None` matches all state_keys for the
                 `type`.
         """
-        is_all, state_dict_ids = self._state_group_cache.get(group)
+        is_all, known_absent, state_dict_ids = self._state_group_cache.get(group)
 
         type_to_key = {}
         missing_types = set()
+
         for typ, state_key in types:
+            key = (typ, state_key)
             if state_key is None:
                 type_to_key[typ] = None
-                missing_types.add((typ, state_key))
+                missing_types.add(key)
             else:
                 if type_to_key.get(typ, object()) is not None:
                     type_to_key.setdefault(typ, set()).add(state_key)
 
-                if (typ, state_key) not in state_dict_ids:
+                if key not in state_dict_ids and key not in known_absent:
-                    missing_types.add((typ, state_key))
+                    missing_types.add(key)
 
         sentinel = object()
 
@@ -590,7 +662,7 @@ class StateStore(SQLBaseStore):
                 return True
             return False
 
-        got_all = not (missing_types or types is None)
+        got_all = is_all or not missing_types
 
         return {
             k: v for k, v in state_dict_ids.iteritems()
@@ -607,7 +679,7 @@ class StateStore(SQLBaseStore):
         Args:
             group: The state group to lookup
         """
-        is_all, state_dict_ids = self._state_group_cache.get(group)
+        is_all, _, state_dict_ids = self._state_group_cache.get(group)
 
         return state_dict_ids, is_all
 
@@ -624,7 +696,7 @@ class StateStore(SQLBaseStore):
         missing_groups = []
         if types is not None:
             for group in set(groups):
-                state_dict_ids, missing_types, got_all = self._get_some_state_from_cache(
+                state_dict_ids, _, got_all = self._get_some_state_from_cache(
                     group, types
                 )
                 results[group] = state_dict_ids
@@ -653,18 +725,6 @@ class StateStore(SQLBaseStore):
             # Now we want to update the cache with all the things we fetched
             # from the database.
             for group, group_state_dict in group_to_state_dict.iteritems():
-                if types:
-                    # We delibrately put key -> None mappings into the cache to
-                    # cache absence of the key, on the assumption that if we've
-                    # explicitly asked for some types then we will probably ask
-                    # for them again.
-                    state_dict = {
-                        (intern_string(etype), intern_string(state_key)): None
-                        for (etype, state_key) in types
-                    }
-                    state_dict.update(results[group])
-                    results[group] = state_dict
-                else:
                 state_dict = results[group]
 
                 state_dict.update(
@@ -677,17 +737,9 @@ class StateStore(SQLBaseStore):
                     key=group,
                     value=state_dict,
                     full=(types is None),
+                    known_absent=types,
                 )
 
-        # Remove all the entries with None values. The None values were just
-        # used for bookkeeping in the cache.
-        for group, state_dict in results.iteritems():
-            results[group] = {
-                key: event_id
-                for key, event_id in state_dict.iteritems()
-                if event_id
-            }
-
         defer.returnValue(results)
 
     def get_next_state_group(self):

synapse/storage/user_directory.py

@@ -0,0 +1,743 @@
+# -*- 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
+from synapse.types import get_domain_from_id, get_localpart_from_id
+
+import re
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class UserDirectoryStore(SQLBaseStore):
+    @cachedInlineCallbacks(cache_context=True)
+    def is_room_world_readable_or_publicly_joinable(self, room_id, cache_context):
+        """Check if the room is either world_readable or publically joinable
+        """
+        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_rule") == 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)
+
+    @defer.inlineCallbacks
+    def add_users_to_public_room(self, room_id, user_ids):
+        """Add user to the list of users in public rooms
+
+        Args:
+            room_id (str): A room_id that all users are in that is world_readable
+                or publically joinable
+            user_ids (list(str)): Users to add
+        """
+        yield self._simple_insert_many(
+            table="users_in_pubic_room",
+            values=[
+                {
+                    "user_id": user_id,
+                    "room_id": room_id,
+                }
+                for user_id in user_ids
+            ],
+            desc="add_users_to_public_room"
+        )
+        for user_id in user_ids:
+            self.get_user_in_public_room.invalidate((user_id,))
+
+    def add_profiles_to_user_dir(self, room_id, users_with_profile):
+        """Add profiles to the user directory
+
+        Args:
+            room_id (str): A room_id that all users are joined to
+            users_with_profile (dict): Users to add to directory in the form of
+                mapping of user_id -> ProfileInfo
+        """
+        if isinstance(self.database_engine, PostgresEngine):
+            # We weight the loclpart most highly, then display name and finally
+            # server name
+            sql = """
+                INSERT INTO user_directory_search(user_id, vector)
+                VALUES (?,
+                    setweight(to_tsvector('english', ?), 'A')
+                    || setweight(to_tsvector('english', ?), 'D')
+                    || setweight(to_tsvector('english', COALESCE(?, '')), 'B')
+                )
+            """
+            args = (
+                (
+                    user_id, get_localpart_from_id(user_id), get_domain_from_id(user_id),
+                    profile.display_name,
+                )
+                for user_id, profile in users_with_profile.iteritems()
+            )
+        elif isinstance(self.database_engine, Sqlite3Engine):
+            sql = """
+                INSERT INTO user_directory_search(user_id, value)
+                VALUES (?,?)
+            """
+            args = (
+                (
+                    user_id,
+                    "%s %s" % (user_id, p.display_name,) if p.display_name else user_id
+                )
+                for user_id, p in users_with_profile.iteritems()
+            )
+        else:
+            # This should be unreachable.
+            raise Exception("Unrecognized database engine")
+
+        def _add_profiles_to_user_dir_txn(txn):
+            txn.executemany(sql, args)
+            self._simple_insert_many_txn(
+                txn,
+                table="user_directory",
+                values=[
+                    {
+                        "user_id": user_id,
+                        "room_id": room_id,
+                        "display_name": profile.display_name,
+                        "avatar_url": profile.avatar_url,
+                    }
+                    for user_id, profile 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 update_user_in_user_dir(self, user_id, room_id):
+        yield self._simple_update_one(
+            table="user_directory",
+            keyvalues={"user_id": user_id},
+            updatevalues={"room_id": room_id},
+            desc="update_user_in_user_dir",
+        )
+        self.get_user_in_directory.invalidate((user_id,))
+
+    def update_profile_in_user_dir(self, user_id, display_name, avatar_url, room_id):
+        def _update_profile_in_user_dir_txn(txn):
+            new_entry = self._simple_upsert_txn(
+                txn,
+                table="user_directory",
+                keyvalues={"user_id": user_id},
+                insertion_values={"room_id": room_id},
+                values={"display_name": display_name, "avatar_url": avatar_url},
+                lock=False,  # We're only inserter
+            )
+
+            if isinstance(self.database_engine, PostgresEngine):
+                # We weight the loclpart most highly, then display name and finally
+                # server name
+                if new_entry:
+                    sql = """
+                        INSERT INTO user_directory_search(user_id, vector)
+                        VALUES (?,
+                            setweight(to_tsvector('english', ?), 'A')
+                            || setweight(to_tsvector('english', ?), 'D')
+                            || setweight(to_tsvector('english', COALESCE(?, '')), 'B')
+                        )
+                    """
+                    txn.execute(
+                        sql,
+                        (
+                            user_id, get_localpart_from_id(user_id),
+                            get_domain_from_id(user_id), display_name,
+                        )
+                    )
+                else:
+                    sql = """
+                        UPDATE user_directory_search
+                        SET vector = setweight(to_tsvector('english', ?), 'A')
+                            || setweight(to_tsvector('english', ?), 'D')
+                            || setweight(to_tsvector('english', COALESCE(?, '')), 'B')
+                        WHERE user_id = ?
+                    """
+                    txn.execute(
+                        sql,
+                        (
+                            get_localpart_from_id(user_id), get_domain_from_id(user_id),
+                            display_name, user_id,
+                        )
+                    )
+            elif isinstance(self.database_engine, Sqlite3Engine):
+                value = "%s %s" % (user_id, display_name,) if display_name else user_id
+                self._simple_upsert_txn(
+                    txn,
+                    table="user_directory_search",
+                    keyvalues={"user_id": user_id},
+                    values={"value": value},
+                    lock=False,  # We're only inserter
+                )
+            else:
+                # This should be unreachable.
+                raise Exception("Unrecognized database engine")
+
+            txn.call_after(self.get_user_in_directory.invalidate, (user_id,))
+
+        return self.runInteraction(
+            "update_profile_in_user_dir", _update_profile_in_user_dir_txn
+        )
+
+    @defer.inlineCallbacks
+    def update_user_in_public_user_list(self, user_id, room_id):
+        yield self._simple_update_one(
+            table="users_in_pubic_room",
+            keyvalues={"user_id": user_id},
+            updatevalues={"room_id": room_id},
+            desc="update_user_in_public_user_list",
+        )
+        self.get_user_in_public_room.invalidate((user_id,))
+
+    def remove_from_user_dir(self, user_id):
+        def _remove_from_user_dir_txn(txn):
+            self._simple_delete_txn(
+                txn,
+                table="user_directory",
+                keyvalues={"user_id": user_id},
+            )
+            self._simple_delete_txn(
+                txn,
+                table="user_directory_search",
+                keyvalues={"user_id": user_id},
+            )
+            self._simple_delete_txn(
+                txn,
+                table="users_in_pubic_room",
+                keyvalues={"user_id": user_id},
+            )
+            txn.call_after(
+                self.get_user_in_directory.invalidate, (user_id,)
+            )
+            txn.call_after(
+                self.get_user_in_public_room.invalidate, (user_id,)
+            )
+        return self.runInteraction(
+            "remove_from_user_dir", _remove_from_user_dir_txn,
+        )
+
+    @defer.inlineCallbacks
+    def remove_from_user_in_public_room(self, user_id):
+        yield self._simple_delete(
+            table="users_in_pubic_room",
+            keyvalues={"user_id": user_id},
+            desc="remove_from_user_in_public_room",
+        )
+        self.get_user_in_public_room.invalidate((user_id,))
+
+    def get_users_in_public_due_to_room(self, room_id):
+        """Get all user_ids that are in the room directory becuase they're
+        in the given room_id
+        """
+        return self._simple_select_onecol(
+            table="users_in_pubic_room",
+            keyvalues={"room_id": room_id},
+            retcol="user_id",
+            desc="get_users_in_public_due_to_room",
+        )
+
+    @defer.inlineCallbacks
+    def get_users_in_dir_due_to_room(self, room_id):
+        """Get all user_ids that are in the room directory becuase they're
+        in the given room_id
+        """
+        user_ids_dir = yield self._simple_select_onecol(
+            table="user_directory",
+            keyvalues={"room_id": room_id},
+            retcol="user_id",
+            desc="get_users_in_dir_due_to_room",
+        )
+
+        user_ids_pub = yield self._simple_select_onecol(
+            table="users_in_pubic_room",
+            keyvalues={"room_id": room_id},
+            retcol="user_id",
+            desc="get_users_in_dir_due_to_room",
+        )
+
+        user_ids_share = yield self._simple_select_onecol(
+            table="users_who_share_rooms",
+            keyvalues={"room_id": room_id},
+            retcol="user_id",
+            desc="get_users_in_dir_due_to_room",
+        )
+
+        user_ids = set(user_ids_dir)
+        user_ids.update(user_ids_pub)
+        user_ids.update(user_ids_share)
+
+        defer.returnValue(user_ids)
+
+    @defer.inlineCallbacks
+    def get_all_rooms(self):
+        """Get all room_ids we've ever known about, in ascending order of "size"
+        """
+        sql = """
+            SELECT room_id FROM current_state_events
+            GROUP BY room_id
+            ORDER BY count(*) ASC
+        """
+        rows = yield self._execute("get_all_rooms", None, sql)
+        defer.returnValue([room_id for room_id, in rows])
+
+    def add_users_who_share_room(self, room_id, share_private, user_id_tuples):
+        """Insert entries into the users_who_share_rooms table. The first
+        user should be a local user.
+
+        Args:
+            room_id (str)
+            share_private (bool): Is the room private
+            user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
+        """
+        def _add_users_who_share_room_txn(txn):
+            self._simple_insert_many_txn(
+                txn,
+                table="users_who_share_rooms",
+                values=[
+                    {
+                        "user_id": user_id,
+                        "other_user_id": other_user_id,
+                        "room_id": room_id,
+                        "share_private": share_private,
+                    }
+                    for user_id, other_user_id in user_id_tuples
+                ],
+            )
+            for user_id, other_user_id in user_id_tuples:
+                txn.call_after(
+                    self.get_users_who_share_room_from_dir.invalidate,
+                    (user_id,),
+                )
+                txn.call_after(
+                    self.get_if_users_share_a_room.invalidate,
+                    (user_id, other_user_id),
+                )
+        return self.runInteraction(
+            "add_users_who_share_room", _add_users_who_share_room_txn
+        )
+
+    def update_users_who_share_room(self, room_id, share_private, user_id_sets):
+        """Updates entries in the users_who_share_rooms table. The first
+        user should be a local user.
+
+        Args:
+            room_id (str)
+            share_private (bool): Is the room private
+            user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
+        """
+        def _update_users_who_share_room_txn(txn):
+            sql = """
+                UPDATE users_who_share_rooms
+                SET room_id = ?, share_private = ?
+                WHERE user_id = ? AND other_user_id = ?
+            """
+            txn.executemany(
+                sql,
+                (
+                    (room_id, share_private, uid, oid)
+                    for uid, oid in user_id_sets
+                )
+            )
+            for user_id, other_user_id in user_id_sets:
+                txn.call_after(
+                    self.get_users_who_share_room_from_dir.invalidate,
+                    (user_id,),
+                )
+                txn.call_after(
+                    self.get_if_users_share_a_room.invalidate,
+                    (user_id, other_user_id),
+                )
+        return self.runInteraction(
+            "update_users_who_share_room", _update_users_who_share_room_txn
+        )
+
+    def remove_user_who_share_room(self, user_id, other_user_id):
+        """Deletes entries in the users_who_share_rooms table. The first
+        user should be a local user.
+
+        Args:
+            room_id (str)
+            share_private (bool): Is the room private
+            user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
+        """
+        def _remove_user_who_share_room_txn(txn):
+            self._simple_delete_txn(
+                txn,
+                table="users_who_share_rooms",
+                keyvalues={
+                    "user_id": user_id,
+                    "other_user_id": other_user_id,
+                },
+            )
+            txn.call_after(
+                self.get_users_who_share_room_from_dir.invalidate,
+                (user_id,),
+            )
+            txn.call_after(
+                self.get_if_users_share_a_room.invalidate,
+                (user_id, other_user_id),
+            )
+
+        return self.runInteraction(
+            "remove_user_who_share_room", _remove_user_who_share_room_txn
+        )
+
+    @cached(max_entries=500000)
+    def get_if_users_share_a_room(self, user_id, other_user_id):
+        """Gets if users share a room.
+
+        Args:
+            user_id (str): Must be a local user_id
+            other_user_id (str)
+
+        Returns:
+            bool|None: None if they don't share a room, otherwise whether they
+            share a private room or not.
+        """
+        return self._simple_select_one_onecol(
+            table="users_who_share_rooms",
+            keyvalues={
+                "user_id": user_id,
+                "other_user_id": other_user_id,
+            },
+            retcol="share_private",
+            allow_none=True,
+            desc="get_if_users_share_a_room",
+        )
+
+    @cachedInlineCallbacks(max_entries=500000, iterable=True)
+    def get_users_who_share_room_from_dir(self, user_id):
+        """Returns the set of users who share a room with `user_id`
+
+        Args:
+            user_id(str): Must be a local user
+
+        Returns:
+            dict: user_id -> share_private mapping
+        """
+        rows = yield self._simple_select_list(
+            table="users_who_share_rooms",
+            keyvalues={
+                "user_id": user_id,
+            },
+            retcols=("other_user_id", "share_private",),
+            desc="get_users_who_share_room_with_user",
+        )
+
+        defer.returnValue({
+            row["other_user_id"]: row["share_private"]
+            for row in rows
+        })
+
+    def get_users_in_share_dir_with_room_id(self, user_id, room_id):
+        """Get all user tuples that are in the users_who_share_rooms due to the
+        given room_id.
+
+        Returns:
+            [(user_id, other_user_id)]: where one of the two will match the given
+            user_id.
+        """
+        sql = """
+            SELECT user_id, other_user_id FROM users_who_share_rooms
+            WHERE room_id = ? AND (user_id = ? OR other_user_id = ?)
+        """
+        return self._execute(
+            "get_users_in_share_dir_with_room_id", None, sql, room_id, user_id, user_id
+        )
+
+    @defer.inlineCallbacks
+    def get_rooms_in_common_for_users(self, user_id, other_user_id):
+        """Given two user_ids find out the list of rooms they share.
+        """
+        sql = """
+            SELECT room_id FROM (
+                SELECT c.room_id FROM current_state_events AS c
+                INNER JOIN room_memberships USING (event_id)
+                WHERE type = 'm.room.member'
+                    AND membership = 'join'
+                    AND state_key = ?
+            ) AS f1 INNER JOIN (
+                SELECT c.room_id FROM current_state_events AS c
+                INNER JOIN room_memberships USING (event_id)
+                WHERE type = 'm.room.member'
+                    AND membership = 'join'
+                    AND state_key = ?
+            ) f2 USING (room_id)
+        """
+
+        rows = yield self._execute(
+            "get_rooms_in_common_for_users", None, sql, user_id, other_user_id
+        )
+
+        defer.returnValue([room_id for room_id, in rows])
+
+    def delete_all_from_user_dir(self):
+        """Delete the entire user directory
+        """
+        def _delete_all_from_user_dir_txn(txn):
+            txn.execute("DELETE FROM user_directory")
+            txn.execute("DELETE FROM user_directory_search")
+            txn.execute("DELETE FROM users_in_pubic_room")
+            txn.execute("DELETE FROM users_who_share_rooms")
+            txn.call_after(self.get_user_in_directory.invalidate_all)
+            txn.call_after(self.get_user_in_public_room.invalidate_all)
+            txn.call_after(self.get_users_who_share_room_from_dir.invalidate_all)
+            txn.call_after(self.get_if_users_share_a_room.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",
+        )
+
+    @cached()
+    def get_user_in_public_room(self, user_id):
+        return self._simple_select_one(
+            table="users_in_pubic_room",
+            keyvalues={"user_id": user_id},
+            retcols=("room_id",),
+            allow_none=True,
+            desc="get_user_in_public_room",
+        )
+
+    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):
+        prev_stream_id = int(prev_stream_id)
+        if not self._curr_state_delta_stream_cache.has_any_entity_changed(prev_stream_id):
+            return []
+
+        def get_current_state_deltas_txn(txn):
+            # First we calculate the max stream id that will give us less than
+            # N results.
+            # We arbitarily limit to 100 stream_id entries to ensure we don't
+            # select toooo many.
+            sql = """
+                SELECT stream_id, count(*)
+                FROM current_state_delta_stream
+                WHERE stream_id > ?
+                GROUP BY stream_id
+                ORDER BY stream_id ASC
+                LIMIT 100
+            """
+            txn.execute(sql, (prev_stream_id,))
+
+            total = 0
+            max_stream_id = prev_stream_id
+            for max_stream_id, count in txn:
+                total += count
+                if total > 100:
+                    # We arbitarily limit to 100 entries to ensure we don't
+                    # select toooo many.
+                    break
+
+            # Now actually get the deltas
+            sql = """
+                SELECT stream_id, room_id, type, state_key, event_id, prev_event_id
+                FROM current_state_delta_stream
+                WHERE ? < stream_id AND stream_id <= ?
+                ORDER BY stream_id ASC
+            """
+            txn.execute(sql, (prev_stream_id, max_stream_id,))
+            return self.cursor_to_dict(txn)
+
+        return self.runInteraction(
+            "get_current_state_deltas", get_current_state_deltas_txn
+        )
+
+    def get_max_stream_id_in_current_state_deltas(self):
+        return self._simple_select_one_onecol(
+            table="current_state_delta_stream",
+            keyvalues={},
+            retcol="COALESCE(MAX(stream_id), -1)",
+            desc="get_max_stream_id_in_current_state_deltas",
+        )
+
+    @defer.inlineCallbacks
+    def search_user_dir(self, user_id, search_term, limit):
+        """Searches for users in directory
+
+        Returns:
+            dict of the form::
+
+                {
+                    "limited": <bool>,  # whether there were more results or not
+                    "results": [  # Ordered by best match first
+                        {
+                            "user_id": <user_id>,
+                            "display_name": <display_name>,
+                            "avatar_url": <avatar_url>
+                        }
+                    ]
+                }
+        """
+        if isinstance(self.database_engine, PostgresEngine):
+            full_query, exact_query, prefix_query = _parse_query_postgres(search_term)
+
+            # We order by rank and then if they have profile info
+            # The ranking algorithm is hand tweaked for "best" results. Broadly
+            # the idea is we give a higher weight to exact matches.
+            # The array of numbers are the weights for the various part of the
+            # search: (domain, _, display name, localpart)
+            sql = """
+                SELECT d.user_id, display_name, avatar_url
+                FROM user_directory_search
+                INNER JOIN user_directory AS d USING (user_id)
+                LEFT JOIN users_in_pubic_room AS p USING (user_id)
+                LEFT JOIN (
+                    SELECT other_user_id AS user_id FROM users_who_share_rooms
+                    WHERE user_id = ? AND share_private
+                ) AS s USING (user_id)
+                WHERE
+                    (s.user_id IS NOT NULL OR p.user_id IS NOT NULL)
+                    AND vector @@ to_tsquery('english', ?)
+                ORDER BY
+                    (CASE WHEN s.user_id IS NOT NULL THEN 4.0 ELSE 1.0 END)
+                    * (CASE WHEN display_name IS NOT NULL THEN 1.2 ELSE 1.0 END)
+                    * (CASE WHEN avatar_url IS NOT NULL THEN 1.2 ELSE 1.0 END)
+                    * (
+                        3 * ts_rank_cd(
+                            '{0.1, 0.1, 0.9, 1.0}',
+                            vector,
+                            to_tsquery('english', ?),
+                            8
+                        )
+                        + ts_rank_cd(
+                            '{0.1, 0.1, 0.9, 1.0}',
+                            vector,
+                            to_tsquery('english', ?),
+                            8
+                        )
+                    )
+                    DESC,
+                    display_name IS NULL,
+                    avatar_url IS NULL
+                LIMIT ?
+            """
+            args = (user_id, full_query, exact_query, prefix_query, limit + 1,)
+        elif isinstance(self.database_engine, Sqlite3Engine):
+            search_query = _parse_query_sqlite(search_term)
+
+            sql = """
+                SELECT d.user_id, display_name, avatar_url
+                FROM user_directory_search
+                INNER JOIN user_directory AS d USING (user_id)
+                LEFT JOIN users_in_pubic_room AS p USING (user_id)
+                LEFT JOIN (
+                    SELECT other_user_id AS user_id FROM users_who_share_rooms
+                    WHERE user_id = ? AND share_private
+                ) AS s USING (user_id)
+                WHERE
+                    (s.user_id IS NOT NULL OR p.user_id IS NOT NULL)
+                    AND value MATCH ?
+                ORDER BY
+                    rank(matchinfo(user_directory_search)) DESC,
+                    display_name IS NULL,
+                    avatar_url IS NULL
+                LIMIT ?
+            """
+            args = (user_id, search_query, limit + 1)
+        else:
+            # This should be unreachable.
+            raise Exception("Unrecognized database engine")
+
+        results = yield self._execute(
+            "search_user_dir", self.cursor_to_dict, sql, *args
+        )
+
+        limited = len(results) > limit
+
+        defer.returnValue({
+            "limited": limited,
+            "results": results,
+        })
+
+
+def _parse_query_sqlite(search_term):
+    """Takes a plain unicode string from the user and converts it into a form
+    that can be passed to database.
+    We use this so that we can add prefix matching, which isn't something
+    that is supported by default.
+
+    We specifically add both a prefix and non prefix matching term so that
+    exact matches get ranked higher.
+    """
+
+    # Pull out the individual words, discarding any non-word characters.
+    results = re.findall(r"([\w\-]+)", search_term, re.UNICODE)
+    return " & ".join("(%s* | %s)" % (result, result,) for result in results)
+
+
+def _parse_query_postgres(search_term):
+    """Takes a plain unicode string from the user and converts it into a form
+    that can be passed to database.
+    We use this so that we can add prefix matching, which isn't something
+    that is supported by default.
+    """
+
+    # Pull out the individual words, discarding any non-word characters.
+    results = re.findall(r"([\w\-]+)", search_term, re.UNICODE)
+
+    both = " & ".join("(%s:* | %s)" % (result, result,) for result in results)
+    exact = " & ".join("%s" % (result,) for result in results)
+    prefix = " & ".join("%s:*" % (result,) for result in results)
+
+    return both, exact, prefix

synapse/types.py

@@ -62,6 +62,13 @@ def get_domain_from_id(string):
     return string[idx + 1:]
 
 
+def get_localpart_from_id(string):
+    idx = string.find(":")
+    if idx == -1:
+        raise SynapseError(400, "Invalid ID: %r" % (string,))
+    return string[1:idx]
+
+
 class DomainSpecificString(
         namedtuple("DomainSpecificString", ("localpart", "domain"))
 ):

synapse/util/caches/__init__.py

@@ -16,7 +16,7 @@
 import synapse.metrics
 import os
 
-CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
+CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.5))
 
 metrics = synapse.metrics.get_metrics_for("synapse.util.caches")
 

synapse/util/caches/descriptors.py

@@ -16,6 +16,7 @@ import logging
 
 from synapse.util.async import ObservableDeferred
 from synapse.util import unwrapFirstError, logcontext
+from synapse.util.caches import CACHE_SIZE_FACTOR
 from synapse.util.caches.lrucache import LruCache
 from synapse.util.caches.treecache import TreeCache, iterate_tree_cache_entry
 from synapse.util.stringutils import to_ascii
@@ -25,7 +26,6 @@ from . import register_cache
 from twisted.internet import defer
 from collections import namedtuple
 
-import os
 import functools
 import inspect
 import threading
@@ -37,9 +37,6 @@ logger = logging.getLogger(__name__)
 _CacheSentinel = object()
 
 
-CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
-
-
 class CacheEntry(object):
     __slots__ = [
         "deferred", "sequence", "callbacks", "invalidated"
@@ -404,6 +401,7 @@ class CacheDescriptor(_CacheDescriptorBase):
 
         wrapped.invalidate_all = cache.invalidate_all
         wrapped.cache = cache
+        wrapped.num_args = self.num_args
 
         obj.__dict__[self.orig.__name__] = wrapped
 
@@ -451,8 +449,9 @@ class CacheListDescriptor(_CacheDescriptorBase):
             )
 
     def __get__(self, obj, objtype=None):
-
+        cached_method = getattr(obj, self.cached_method_name)
-        cache = getattr(obj, self.cached_method_name).cache
+        cache = cached_method.cache
+        num_args = cached_method.num_args
 
         @functools.wraps(self.orig)
         def wrapped(*args, **kwargs):
@@ -469,12 +468,23 @@ class CacheListDescriptor(_CacheDescriptorBase):
             results = {}
             cached_defers = {}
             missing = []
-            for arg in list_args:
-                key = list(keyargs)
-                key[self.list_pos] = arg
 
+            # If the cache takes a single arg then that is used as the key,
+            # otherwise a tuple is used.
+            if num_args == 1:
+                def cache_get(arg):
+                    return cache.get(arg, callback=invalidate_callback)
+            else:
+                key = list(keyargs)
+
+                def cache_get(arg):
+                    key[self.list_pos] = arg
+                    return cache.get(tuple(key), callback=invalidate_callback)
+
+            for arg in list_args:
                 try:
-                    res = cache.get(tuple(key), callback=invalidate_callback)
+                    res = cache_get(arg)
+
                     if not isinstance(res, ObservableDeferred):
                         results[arg] = res
                     elif not res.has_succeeded():
@@ -505,6 +515,17 @@ class CacheListDescriptor(_CacheDescriptorBase):
 
                     observer = ObservableDeferred(observer)
 
+                    if num_args == 1:
+                        cache.set(
+                            arg, observer,
+                            callback=invalidate_callback
+                        )
+
+                        def invalidate(f, key):
+                            cache.invalidate(key)
+                            return f
+                        observer.addErrback(invalidate, arg)
+                    else:
                         key = list(keyargs)
                         key[self.list_pos] = arg
                         cache.set(

synapse/util/caches/dictionary_cache.py

@@ -23,7 +23,17 @@ import logging
 logger = logging.getLogger(__name__)
 
 
-class DictionaryEntry(namedtuple("DictionaryEntry", ("full", "value"))):
+class DictionaryEntry(namedtuple("DictionaryEntry", ("full", "known_absent", "value"))):
+    """Returned when getting an entry from the cache
+
+    Attributes:
+        full (bool): Whether the cache has the full or dict or just some keys.
+            If not full then not all requested keys will necessarily be present
+            in `value`
+        known_absent (set): Keys that were looked up in the dict and were not
+            there.
+        value (dict): The full or partial dict value
+    """
     def __len__(self):
         return len(self.value)
 
@@ -58,21 +68,31 @@ class DictionaryCache(object):
                 )
 
     def get(self, key, dict_keys=None):
+        """Fetch an entry out of the cache
+
+        Args:
+            key
+            dict_key(list): If given a set of keys then return only those keys
+                that exist in the cache.
+
+        Returns:
+            DictionaryEntry
+        """
         entry = self.cache.get(key, self.sentinel)
         if entry is not self.sentinel:
             self.metrics.inc_hits()
 
             if dict_keys is None:
-                return DictionaryEntry(entry.full, dict(entry.value))
+                return DictionaryEntry(entry.full, entry.known_absent, dict(entry.value))
             else:
-                return DictionaryEntry(entry.full, {
+                return DictionaryEntry(entry.full, entry.known_absent, {
                     k: entry.value[k]
                     for k in dict_keys
                     if k in entry.value
                 })
 
         self.metrics.inc_misses()
-        return DictionaryEntry(False, {})
+        return DictionaryEntry(False, set(), {})
 
     def invalidate(self, key):
         self.check_thread()
@@ -87,19 +107,34 @@ class DictionaryCache(object):
         self.sequence += 1
         self.cache.clear()
 
-    def update(self, sequence, key, value, full=False):
+    def update(self, sequence, key, value, full=False, known_absent=None):
+        """Updates the entry in the cache
+
+        Args:
+            sequence
+            key
+            value (dict): The value to update the cache with.
+            full (bool): Whether the given value is the full dict, or just a
+                partial subset there of. If not full then any existing entries
+                for the key will be updated.
+            known_absent (set): Set of keys that we know don't exist in the full
+                dict.
+        """
         self.check_thread()
         if self.sequence == sequence:
             # Only update the cache if the caches sequence number matches the
             # number that the cache had before the SELECT was started (SYN-369)
+            if known_absent is None:
+                known_absent = set()
             if full:
-                self._insert(key, value)
+                self._insert(key, value, known_absent)
             else:
-                self._update_or_insert(key, value)
+                self._update_or_insert(key, value, known_absent)
 
-    def _update_or_insert(self, key, value):
+    def _update_or_insert(self, key, value, known_absent):
-        entry = self.cache.setdefault(key, DictionaryEntry(False, {}))
+        entry = self.cache.setdefault(key, DictionaryEntry(False, set(), {}))
         entry.value.update(value)
+        entry.known_absent.update(known_absent)
 
-    def _insert(self, key, value):
+    def _insert(self, key, value, known_absent):
-        self.cache[key] = DictionaryEntry(True, value)
+        self.cache[key] = DictionaryEntry(True, known_absent, value)

synapse/util/caches/expiringcache.py

@@ -94,6 +94,9 @@ class ExpiringCache(object):
 
         return entry.value
 
+    def __contains__(self, key):
+        return key in self._cache
+
     def get(self, key, default=None):
         try:
             return self[key]

synapse/util/caches/stream_change_cache.py

@@ -13,20 +13,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from synapse.util.caches import register_cache
+from synapse.util.caches import register_cache, CACHE_SIZE_FACTOR
 
 
 from blist import sorteddict
 import logging
-import os
 
 
 logger = logging.getLogger(__name__)
 
 
-CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
-
-
 class StreamChangeCache(object):
     """Keeps track of the stream positions of the latest change in a set of entities.
 
@@ -89,6 +85,21 @@ class StreamChangeCache(object):
 
         return result
 
+    def has_any_entity_changed(self, stream_pos):
+        """Returns if any entity has changed
+        """
+        assert type(stream_pos) is int
+
+        if stream_pos >= self._earliest_known_stream_pos:
+            self.metrics.inc_hits()
+            keys = self._cache.keys()
+            i = keys.bisect_right(stream_pos)
+
+            return i < len(keys)
+        else:
+            self.metrics.inc_misses()
+            return True
+
     def get_all_entities_changed(self, stream_pos):
         """Returns all entites that have had new things since the given
         position. If the position is too old it will return None.

tests/storage/test__base.py

@@ -241,7 +241,7 @@ class CacheDecoratorTestCase(unittest.TestCase):
         callcount2 = [0]
 
         class A(object):
-            @cached(max_entries=20)  # HACK: This makes it 2 due to cache factor
+            @cached(max_entries=4)  # HACK: This makes it 2 due to cache factor
             def func(self, key):
                 callcount[0] += 1
                 return key

tests/storage/test_client_ips.py

@@ -43,10 +43,7 @@ class ClientIpStoreTestCase(tests.unittest.TestCase):
             "access_token", "ip", "user_agent", "device_id",
         )
 
-        # deliberately use an iterable here to make sure that the lookup
+        result = yield self.store.get_last_client_ip_by_device(user_id, "device_id")
-        # method doesn't iterate it twice
-        device_list = iter(((user_id, "device_id"),))
-        result = yield self.store.get_last_client_ip_by_device(device_list)
 
         r = result[(user_id, "device_id")]
         self.assertDictContainsSubset(

tests/test_state.py

@@ -143,6 +143,7 @@ class StateTestCase(unittest.TestCase):
                 "add_event_hashes",
                 "get_events",
                 "get_next_state_group",
+                "get_state_group_delta",
             ]
         )
         hs = Mock(spec_set=[
@@ -154,6 +155,7 @@ class StateTestCase(unittest.TestCase):
         hs.get_auth.return_value = Auth(hs)
 
         self.store.get_next_state_group.side_effect = Mock
+        self.store.get_state_group_delta.return_value = (None, None)
 
         self.state = StateHandler(hs)
         self.event_id = 0

tests/util/test_dict_cache.py

@@ -28,7 +28,7 @@ class DictCacheTestCase(unittest.TestCase):
         key = "test_simple_cache_hit_full"
 
         v = self.cache.get(key)
-        self.assertEqual((False, {}), v)
+        self.assertEqual((False, set(), {}), v)
 
         seq = self.cache.sequence
         test_value = {"test": "test_simple_cache_hit_full"}

tests/utils.py

@@ -55,6 +55,7 @@ def setup_test_homeserver(name="test", datastore=None, config=None, **kargs):
         config.password_providers = []
         config.worker_replication_url = ""
         config.worker_app = None
+        config.email_enable_notifs = False
 
     config.use_frozen_dicts = True
     config.database_config = {"name": "sqlite3"}