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-rw-r--r--synapse/handlers/room_member.py104
1 files changed, 81 insertions, 23 deletions
diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py
index 43d10a5308..35450feb6f 100644
--- a/synapse/handlers/room_member.py
+++ b/synapse/handlers/room_member.py
@@ -684,7 +684,14 @@ class RoomMemberHandler(object):
             )
         else:
             yield self._make_and_store_3pid_invite(
-                requester, id_server, medium, address, room_id, inviter, txn_id=txn_id
+                requester,
+                id_server,
+                medium,
+                address,
+                room_id,
+                inviter,
+                txn_id=txn_id,
+                id_access_token=id_access_token,
             )
 
     @defer.inlineCallbacks
@@ -885,7 +892,15 @@ class RoomMemberHandler(object):
 
     @defer.inlineCallbacks
     def _make_and_store_3pid_invite(
-        self, requester, id_server, medium, address, room_id, user, txn_id
+        self,
+        requester,
+        id_server,
+        medium,
+        address,
+        room_id,
+        user,
+        txn_id,
+        id_access_token=None,
     ):
         room_state = yield self.state_handler.get_current_state(room_id)
 
@@ -934,6 +949,7 @@ class RoomMemberHandler(object):
                 room_name=room_name,
                 inviter_display_name=inviter_display_name,
                 inviter_avatar_url=inviter_avatar_url,
+                id_access_token=id_access_token,
             )
         )
 
@@ -971,6 +987,7 @@ class RoomMemberHandler(object):
         room_name,
         inviter_display_name,
         inviter_avatar_url,
+        id_access_token=None,
     ):
         """
         Asks an identity server for a third party invite.
@@ -990,6 +1007,8 @@ class RoomMemberHandler(object):
             inviter_display_name (str): The current display name of the
                 inviter.
             inviter_avatar_url (str): The URL of the inviter's avatar.
+            id_access_token (str|None): The access token to authenticate to the identity
+                server with
 
         Returns:
             A deferred tuple containing:
@@ -1000,11 +1019,6 @@ class RoomMemberHandler(object):
                 display_name (str): A user-friendly name to represent the invited
                     user.
         """
-        is_url = "%s%s/_matrix/identity/api/v1/store-invite" % (
-            id_server_scheme,
-            id_server,
-        )
-
         invite_config = {
             "medium": medium,
             "address": address,
@@ -1017,22 +1031,67 @@ class RoomMemberHandler(object):
             "sender_display_name": inviter_display_name,
             "sender_avatar_url": inviter_avatar_url,
         }
-        try:
-            data = yield self.simple_http_client.post_json_get_json(
-                is_url, invite_config
-            )
-        except HttpResponseException as e:
-            # Some identity servers may only support application/x-www-form-urlencoded
-            # types. This is especially true with old instances of Sydent, see
-            # https://github.com/matrix-org/sydent/pull/170
-            logger.info(
-                "Failed to POST %s with JSON, falling back to urlencoded form: %s",
-                is_url,
-                e,
+
+        # Add the identity service access token to the JSON body and use the v2
+        # Identity Service endpoints if id_access_token is present
+        data = None
+        base_url = "%s%s/_matrix/identity" % (id_server_scheme, id_server)
+
+        if id_access_token:
+            key_validity_url = "%s%s/_matrix/identity/v2/pubkey/isvalid" % (
+                id_server_scheme,
+                id_server,
             )
-            data = yield self.simple_http_client.post_urlencoded_get_json(
-                is_url, invite_config
+
+            # Attempt a v2 lookup
+            url = base_url + "/v2/store-invite"
+            try:
+                data = yield self.simple_http_client.post_json_get_json(
+                    url,
+                    invite_config,
+                    {"Authorization": create_id_access_token_header(id_access_token)},
+                )
+            except HttpResponseException as e:
+                if e.code != 404:
+                    logger.info("Failed to POST %s with JSON: %s", url, e)
+                    raise e
+
+        if data is None:
+            key_validity_url = "%s%s/_matrix/identity/api/v1/pubkey/isvalid" % (
+                id_server_scheme,
+                id_server,
             )
+            url = base_url + "/api/v1/store-invite"
+
+            try:
+                data = yield self.simple_http_client.post_json_get_json(
+                    url, invite_config
+                )
+            except HttpResponseException as e:
+                logger.warning(
+                    "Error trying to call /store-invite on %s%s: %s",
+                    id_server_scheme,
+                    id_server,
+                    e,
+                )
+
+            if data is None:
+                # Some identity servers may only support application/x-www-form-urlencoded
+                # types. This is especially true with old instances of Sydent, see
+                # https://github.com/matrix-org/sydent/pull/170
+                try:
+                    data = yield self.simple_http_client.post_urlencoded_get_json(
+                        url, invite_config
+                    )
+                except HttpResponseException as e:
+                    logger.warning(
+                        "Error calling /store-invite on %s%s with fallback "
+                        "encoding: %s",
+                        id_server_scheme,
+                        id_server,
+                        e,
+                    )
+                    raise e
 
         # TODO: Check for success
         token = data["token"]
@@ -1040,8 +1099,7 @@ class RoomMemberHandler(object):
         if "public_key" in data:
             fallback_public_key = {
                 "public_key": data["public_key"],
-                "key_validity_url": "%s%s/_matrix/identity/api/v1/pubkey/isvalid"
-                % (id_server_scheme, id_server),
+                "key_validity_url": key_validity_url,
             }
         else:
             fallback_public_key = public_keys[0]