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-rw-r--r--synapse/api/urls.py1
-rw-r--r--synapse/federation/transport/server.py31
-rw-r--r--synapse/http/matrixfederationclient.py4
-rw-r--r--synapse/rest/admin/__init__.py12
-rw-r--r--synapse/rest/client/v1/login.py4
-rw-r--r--synapse/rest/client/v1/logout.py27
-rw-r--r--synapse/rest/media/v1/thumbnail_resource.py4
-rw-r--r--synapse/storage/events_worker.py50
-rw-r--r--synapse/util/logcontext.py22
9 files changed, 115 insertions, 40 deletions
diff --git a/synapse/api/urls.py b/synapse/api/urls.py
index 3c6bddff7a..e16c386a14 100644
--- a/synapse/api/urls.py
+++ b/synapse/api/urls.py
@@ -26,6 +26,7 @@ CLIENT_API_PREFIX = "/_matrix/client"
 FEDERATION_PREFIX = "/_matrix/federation"
 FEDERATION_V1_PREFIX = FEDERATION_PREFIX + "/v1"
 FEDERATION_V2_PREFIX = FEDERATION_PREFIX + "/v2"
+FEDERATION_UNSTABLE_PREFIX = FEDERATION_PREFIX + "/unstable"
 STATIC_PREFIX = "/_matrix/static"
 WEB_CLIENT_PREFIX = "/_matrix/client"
 CONTENT_REPO_PREFIX = "/_matrix/content"
diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py
index 385eda2dca..d0efc4e0d3 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -23,7 +23,11 @@ from twisted.internet import defer
 import synapse
 from synapse.api.errors import Codes, FederationDeniedError, SynapseError
 from synapse.api.room_versions import RoomVersions
-from synapse.api.urls import FEDERATION_V1_PREFIX, FEDERATION_V2_PREFIX
+from synapse.api.urls import (
+    FEDERATION_UNSTABLE_PREFIX,
+    FEDERATION_V1_PREFIX,
+    FEDERATION_V2_PREFIX,
+)
 from synapse.http.endpoint import parse_and_validate_server_name
 from synapse.http.server import JsonResource
 from synapse.http.servlet import (
@@ -1304,6 +1308,30 @@ class FederationGroupsSettingJoinPolicyServlet(BaseFederationServlet):
         defer.returnValue((200, new_content))
 
 
+class RoomComplexityServlet(BaseFederationServlet):
+    """
+    Indicates to other servers how complex (and therefore likely
+    resource-intensive) a public room this server knows about is.
+    """
+    PATH = "/rooms/(?P<room_id>[^/]*)/complexity"
+    PREFIX = FEDERATION_UNSTABLE_PREFIX
+
+    @defer.inlineCallbacks
+    def on_GET(self, origin, content, query, room_id):
+
+        store = self.handler.hs.get_datastore()
+
+        is_public = yield store.is_room_world_readable_or_publicly_joinable(
+            room_id
+        )
+
+        if not is_public:
+            raise SynapseError(404, "Room not found", errcode=Codes.INVALID_PARAM)
+
+        complexity = yield store.get_room_complexity(room_id)
+        defer.returnValue((200, complexity))
+
+
 FEDERATION_SERVLET_CLASSES = (
     FederationSendServlet,
     FederationEventServlet,
@@ -1327,6 +1355,7 @@ FEDERATION_SERVLET_CLASSES = (
     FederationThirdPartyInviteExchangeServlet,
     On3pidBindServlet,
     FederationVersionServlet,
+    RoomComplexityServlet,
 )
 
 OPENID_SERVLET_CLASSES = (
diff --git a/synapse/http/matrixfederationclient.py b/synapse/http/matrixfederationclient.py
index 7eefc7b1fc..8197619a78 100644
--- a/synapse/http/matrixfederationclient.py
+++ b/synapse/http/matrixfederationclient.py
@@ -711,10 +711,6 @@ class MatrixFederationHttpClient(object):
             RequestSendFailed: If there were problems connecting to the
                 remote, due to e.g. DNS failures, connection timeouts etc.
         """
-        logger.debug("get_json args: %s", args)
-
-        logger.debug("Query bytes: %s Retry DNS: %s", args, retry_on_dns_fail)
-
         request = MatrixFederationRequest(
             method="GET",
             destination=destination,
diff --git a/synapse/rest/admin/__init__.py b/synapse/rest/admin/__init__.py
index 744d85594f..d6c4dcdb18 100644
--- a/synapse/rest/admin/__init__.py
+++ b/synapse/rest/admin/__init__.py
@@ -822,10 +822,16 @@ class AdminRestResource(JsonResource):
 
     def __init__(self, hs):
         JsonResource.__init__(self, hs, canonical_json=False)
+        register_servlets(hs, self)
 
-        register_servlets_for_client_rest_resource(hs, self)
-        SendServerNoticeServlet(hs).register(self)
-        VersionServlet(hs).register(self)
+
+def register_servlets(hs, http_server):
+    """
+    Register all the admin servlets.
+    """
+    register_servlets_for_client_rest_resource(hs, http_server)
+    SendServerNoticeServlet(hs).register(http_server)
+    VersionServlet(hs).register(http_server)
 
 
 def register_servlets_for_client_rest_resource(hs, http_server):
diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py
index 5180e9eaf1..029039c162 100644
--- a/synapse/rest/client/v1/login.py
+++ b/synapse/rest/client/v1/login.py
@@ -386,7 +386,7 @@ class CasRedirectServlet(RestServlet):
             b"redirectUrl": args[b"redirectUrl"][0]
         }).encode('ascii')
         hs_redirect_url = (self.cas_service_url +
-                           b"/_matrix/client/api/v1/login/cas/ticket")
+                           b"/_matrix/client/r0/login/cas/ticket")
         service_param = urllib.parse.urlencode({
             b"service": b"%s?%s" % (hs_redirect_url, client_redirect_url_param)
         }).encode('ascii')
@@ -395,7 +395,7 @@ class CasRedirectServlet(RestServlet):
 
 
 class CasTicketServlet(ClientV1RestServlet):
-    PATTERNS = client_path_patterns("/login/cas/ticket", releases=())
+    PATTERNS = client_path_patterns("/login/cas/ticket")
 
     def __init__(self, hs):
         super(CasTicketServlet, self).__init__(hs)
diff --git a/synapse/rest/client/v1/logout.py b/synapse/rest/client/v1/logout.py
index 430c692336..ba20e75033 100644
--- a/synapse/rest/client/v1/logout.py
+++ b/synapse/rest/client/v1/logout.py
@@ -17,8 +17,6 @@ import logging
 
 from twisted.internet import defer
 
-from synapse.api.errors import AuthError
-
 from .base import ClientV1RestServlet, client_path_patterns
 
 logger = logging.getLogger(__name__)
@@ -38,23 +36,16 @@ class LogoutRestServlet(ClientV1RestServlet):
 
     @defer.inlineCallbacks
     def on_POST(self, request):
-        try:
-            requester = yield self.auth.get_user_by_req(request)
-        except AuthError:
-            # this implies the access token has already been deleted.
-            defer.returnValue((401, {
-                "errcode": "M_UNKNOWN_TOKEN",
-                "error": "Access Token unknown or expired"
-            }))
+        requester = yield self.auth.get_user_by_req(request)
+
+        if requester.device_id is None:
+            # the acccess token wasn't associated with a device.
+            # Just delete the access token
+            access_token = self._auth.get_access_token_from_request(request)
+            yield self._auth_handler.delete_access_token(access_token)
         else:
-            if requester.device_id is None:
-                # the acccess token wasn't associated with a device.
-                # Just delete the access token
-                access_token = self._auth.get_access_token_from_request(request)
-                yield self._auth_handler.delete_access_token(access_token)
-            else:
-                yield self._device_handler.delete_device(
-                    requester.user.to_string(), requester.device_id)
+            yield self._device_handler.delete_device(
+                requester.user.to_string(), requester.device_id)
 
         defer.returnValue((200, {}))
 
diff --git a/synapse/rest/media/v1/thumbnail_resource.py b/synapse/rest/media/v1/thumbnail_resource.py
index 5305e9175f..35a750923b 100644
--- a/synapse/rest/media/v1/thumbnail_resource.py
+++ b/synapse/rest/media/v1/thumbnail_resource.py
@@ -56,8 +56,8 @@ class ThumbnailResource(Resource):
     def _async_render_GET(self, request):
         set_cors_headers(request)
         server_name, media_id, _ = parse_media_id(request)
-        width = parse_integer(request, "width")
-        height = parse_integer(request, "height")
+        width = parse_integer(request, "width", required=True)
+        height = parse_integer(request, "height", required=True)
         method = parse_string(request, "method", "scale")
         m_type = parse_string(request, "type", "image/png")
 
diff --git a/synapse/storage/events_worker.py b/synapse/storage/events_worker.py
index 21b353cad3..b56c83e460 100644
--- a/synapse/storage/events_worker.py
+++ b/synapse/storage/events_worker.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import division
+
 import itertools
 import logging
 from collections import namedtuple
@@ -614,7 +616,7 @@ class EventsWorkerStore(SQLBaseStore):
 
     def _get_total_state_event_counts_txn(self, txn, room_id):
         """
-        See get_state_event_counts.
+        See get_total_state_event_counts.
         """
         sql = "SELECT COUNT(*) FROM state_events WHERE room_id=?"
         txn.execute(sql, (room_id,))
@@ -635,3 +637,49 @@ class EventsWorkerStore(SQLBaseStore):
             "get_total_state_event_counts",
             self._get_total_state_event_counts_txn, room_id
         )
+
+    def _get_current_state_event_counts_txn(self, txn, room_id):
+        """
+        See get_current_state_event_counts.
+        """
+        sql = "SELECT COUNT(*) FROM current_state_events WHERE room_id=?"
+        txn.execute(sql, (room_id,))
+        row = txn.fetchone()
+        return row[0] if row else 0
+
+    def get_current_state_event_counts(self, room_id):
+        """
+        Gets the current number of state events in a room.
+
+        Args:
+            room_id (str)
+
+        Returns:
+            Deferred[int]
+        """
+        return self.runInteraction(
+            "get_current_state_event_counts",
+            self._get_current_state_event_counts_txn, room_id
+        )
+
+    @defer.inlineCallbacks
+    def get_room_complexity(self, room_id):
+        """
+        Get a rough approximation of the complexity of the room. This is used by
+        remote servers to decide whether they wish to join the room or not.
+        Higher complexity value indicates that being in the room will consume
+        more resources.
+
+        Args:
+            room_id (str)
+
+        Returns:
+            Deferred[dict[str:int]] of complexity version to complexity.
+        """
+        state_events = yield self.get_current_state_event_counts(room_id)
+
+        # Call this one "v1", so we can introduce new ones as we want to develop
+        # it.
+        complexity_v1 = round(state_events / 500, 2)
+
+        defer.returnValue({"v1": complexity_v1})
diff --git a/synapse/util/logcontext.py b/synapse/util/logcontext.py
index 311b49e18a..fe412355d8 100644
--- a/synapse/util/logcontext.py
+++ b/synapse/util/logcontext.py
@@ -226,6 +226,8 @@ class LoggingContext(object):
             self.request = request
 
     def __str__(self):
+        if self.request:
+            return str(self.request)
         return "%s@%x" % (self.name, id(self))
 
     @classmethod
@@ -274,12 +276,10 @@ class LoggingContext(object):
         current = self.set_current_context(self.previous_context)
         if current is not self:
             if current is self.sentinel:
-                logger.warn("Expected logging context %s has been lost", self)
+                logger.warning("Expected logging context %s was lost", self)
             else:
-                logger.warn(
-                    "Current logging context %s is not expected context %s",
-                    current,
-                    self
+                logger.warning(
+                    "Expected logging context %s but found %s", self, current
                 )
         self.previous_context = None
         self.alive = False
@@ -433,10 +433,14 @@ class PreserveLoggingContext(object):
         context = LoggingContext.set_current_context(self.current_context)
 
         if context != self.new_context:
-            logger.warn(
-                "Unexpected logging context: %s is not %s",
-                context, self.new_context,
-            )
+            if context is LoggingContext.sentinel:
+                logger.warning("Expected logging context %s was lost", self.new_context)
+            else:
+                logger.warning(
+                    "Expected logging context %s but found %s",
+                    self.new_context,
+                    context,
+                )
 
         if self.current_context is not LoggingContext.sentinel:
             if not self.current_context.alive: