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-rw-r--r--synapse/handlers/_base.py11
-rw-r--r--synapse/handlers/federation.py18
-rw-r--r--synapse/handlers/room.py4
3 files changed, 28 insertions, 5 deletions
diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py
index c488ee0f6d..faf99f5bd3 100644
--- a/synapse/handlers/_base.py
+++ b/synapse/handlers/_base.py
@@ -21,6 +21,7 @@ from synapse.api.constants import Membership, EventTypes
 from synapse.types import UserID, RoomAlias
 
 from synapse.util.logcontext import PreserveLoggingContext
+from synapse.util.thirdpartyinvites import ThirdPartyInvites
 
 import logging
 
@@ -123,6 +124,16 @@ class BaseHandler(object):
                         )
                     )
 
+        if (
+            event.type == EventTypes.Member and
+            event.content["membership"] == Membership.JOIN and
+            ThirdPartyInvites.has_join_keys(event.content)
+        ):
+            yield ThirdPartyInvites.check_key_valid(
+                self.hs.get_simple_http_client(),
+                event
+            )
+
         federation_handler = self.hs.get_handlers().federation_handler
 
         if event.type == EventTypes.Member:
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 3882ba79ed..8197d8b2d0 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -39,7 +39,7 @@ from twisted.internet import defer
 
 import itertools
 import logging
-
+from synapse.util.thirdpartyinvites import ThirdPartyInvites
 
 logger = logging.getLogger(__name__)
 
@@ -162,7 +162,7 @@ class FederationHandler(BaseHandler):
                     auth_ids = [e_id for e_id, _ in e.auth_events]
                     auth = {
                         (e.type, e.state_key): e for e in auth_chain
-                        if e.event_id in auth_ids or e.type == EventTypes.Create
+                        if e.event_id in auth_ids
                     }
                     event_infos.append({
                         "event": e,
@@ -584,7 +584,8 @@ class FederationHandler(BaseHandler):
         origin, pdu = yield self.replication_layer.make_join(
             target_hosts,
             room_id,
-            joinee
+            joinee,
+            content
         )
 
         logger.debug("Got response to make_join: %s", pdu)
@@ -697,14 +698,18 @@ class FederationHandler(BaseHandler):
 
     @defer.inlineCallbacks
     @log_function
-    def on_make_join_request(self, room_id, user_id):
+    def on_make_join_request(self, room_id, user_id, query):
         """ We've received a /make_join/ request, so we create a partial
         join event for the room and return that. We don *not* persist or
         process it until the other server has signed it and sent it back.
         """
+        event_content = {"membership": Membership.JOIN}
+        if ThirdPartyInvites.has_join_keys(query):
+            ThirdPartyInvites.copy_join_keys(query, event_content)
+
         builder = self.event_builder_factory.new({
             "type": EventTypes.Member,
-            "content": {"membership": Membership.JOIN},
+            "content": event_content,
             "room_id": room_id,
             "sender": user_id,
             "state_key": user_id,
@@ -716,6 +721,9 @@ class FederationHandler(BaseHandler):
 
         self.auth.check(event, auth_events=context.current_state)
 
+        if ThirdPartyInvites.has_join_keys(event.content):
+            ThirdPartyInvites.check_key_valid(self.hs.get_simple_http_client(), event)
+
         defer.returnValue(event)
 
     @defer.inlineCallbacks
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index 3364a5de14..b856b424a7 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -483,6 +483,10 @@ class RoomMemberHandler(BaseHandler):
 
                 should_do_dance = not self.hs.is_mine(inviter)
                 room_hosts = [inviter.domain]
+            elif "sender" in event.content:
+                inviter = UserID.from_string(event.content["sender"])
+                should_do_dance = not self.hs.is_mine(inviter)
+                room_hosts = [inviter.domain]
             else:
                 # return the same error as join_room_alias does
                 raise SynapseError(404, "No known servers")