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-rw-r--r--synapse/rest/admin/rooms.py45
-rw-r--r--synapse/rest/client/v1/room.py90
2 files changed, 59 insertions, 76 deletions
diff --git a/synapse/rest/admin/rooms.py b/synapse/rest/admin/rooms.py
index 40ee33646c..975c28b225 100644
--- a/synapse/rest/admin/rooms.py
+++ b/synapse/rest/admin/rooms.py
@@ -20,6 +20,7 @@ from synapse.api.constants import EventTypes, JoinRules, Membership
 from synapse.api.errors import AuthError, Codes, NotFoundError, SynapseError
 from synapse.api.filtering import Filter
 from synapse.http.servlet import (
+    ResolveRoomIdMixin,
     RestServlet,
     assert_params_in_dict,
     parse_integer,
@@ -33,7 +34,7 @@ from synapse.rest.admin._base import (
     assert_user_is_admin,
 )
 from synapse.storage.databases.main.room import RoomSortOrder
-from synapse.types import JsonDict, RoomAlias, RoomID, UserID, create_requester
+from synapse.types import JsonDict, UserID, create_requester
 from synapse.util import json_decoder
 
 if TYPE_CHECKING:
@@ -45,48 +46,6 @@ if TYPE_CHECKING:
 logger = logging.getLogger(__name__)
 
 
-class ResolveRoomIdMixin:
-    def __init__(self, hs: "HomeServer"):
-        self.room_member_handler = hs.get_room_member_handler()
-
-    async def resolve_room_id(
-        self, room_identifier: str, remote_room_hosts: Optional[List[str]] = None
-    ) -> Tuple[str, Optional[List[str]]]:
-        """
-        Resolve a room identifier to a room ID, if necessary.
-
-        This also performanes checks to ensure the room ID is of the proper form.
-
-        Args:
-            room_identifier: The room ID or alias.
-            remote_room_hosts: The potential remote room hosts to use.
-
-        Returns:
-            The resolved room ID.
-
-        Raises:
-            SynapseError if the room ID is of the wrong form.
-        """
-        if RoomID.is_valid(room_identifier):
-            resolved_room_id = room_identifier
-        elif RoomAlias.is_valid(room_identifier):
-            room_alias = RoomAlias.from_string(room_identifier)
-            (
-                room_id,
-                remote_room_hosts,
-            ) = await self.room_member_handler.lookup_room_alias(room_alias)
-            resolved_room_id = room_id.to_string()
-        else:
-            raise SynapseError(
-                400, "%s was not legal room ID or room alias" % (room_identifier,)
-            )
-        if not resolved_room_id:
-            raise SynapseError(
-                400, "Unknown room ID or room alias %s" % room_identifier
-            )
-        return resolved_room_id, remote_room_hosts
-
-
 class ShutdownRoomRestServlet(RestServlet):
     """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
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py
index 2c3be23bc8..d3882a84e2 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -24,12 +24,14 @@ from synapse.api.errors import (
     AuthError,
     Codes,
     InvalidClientCredentialsError,
+    MissingClientTokenError,
     ShadowBanError,
     SynapseError,
 )
 from synapse.api.filtering import Filter
 from synapse.events.utils import format_event_for_client_v2
 from synapse.http.servlet import (
+    ResolveRoomIdMixin,
     RestServlet,
     assert_params_in_dict,
     parse_boolean,
@@ -44,14 +46,7 @@ from synapse.rest.client.transactions import HttpTransactionCache
 from synapse.rest.client.v2_alpha._base import client_patterns
 from synapse.storage.state import StateFilter
 from synapse.streams.config import PaginationConfig
-from synapse.types import (
-    JsonDict,
-    RoomAlias,
-    RoomID,
-    StreamToken,
-    ThirdPartyInstanceID,
-    UserID,
-)
+from synapse.types import JsonDict, StreamToken, ThirdPartyInstanceID, UserID
 from synapse.util import json_decoder
 from synapse.util.stringutils import parse_and_validate_server_name, random_string
 
@@ -266,10 +261,10 @@ class RoomSendEventRestServlet(TransactionRestServlet):
 
 
 # TODO: Needs unit testing for room ID + alias joins
-class JoinRoomAliasServlet(TransactionRestServlet):
+class JoinRoomAliasServlet(ResolveRoomIdMixin, TransactionRestServlet):
     def __init__(self, hs):
         super().__init__(hs)
-        self.room_member_handler = hs.get_room_member_handler()
+        super(ResolveRoomIdMixin, self).__init__(hs)  # ensure the Mixin is set up
         self.auth = hs.get_auth()
 
     def register(self, http_server):
@@ -292,24 +287,13 @@ class JoinRoomAliasServlet(TransactionRestServlet):
             # cheekily send invalid bodies.
             content = {}
 
-        if RoomID.is_valid(room_identifier):
-            room_id = room_identifier
-
-            # twisted.web.server.Request.args is incorrectly defined as Optional[Any]
-            args: Dict[bytes, List[bytes]] = request.args  # type: ignore
-
-            remote_room_hosts = parse_strings_from_args(
-                args, "server_name", required=False
-            )
-        elif RoomAlias.is_valid(room_identifier):
-            handler = self.room_member_handler
-            room_alias = RoomAlias.from_string(room_identifier)
-            room_id_obj, remote_room_hosts = await handler.lookup_room_alias(room_alias)
-            room_id = room_id_obj.to_string()
-        else:
-            raise SynapseError(
-                400, "%s was not legal room ID or room alias" % (room_identifier,)
-            )
+        # twisted.web.server.Request.args is incorrectly defined as Optional[Any]
+        args: Dict[bytes, List[bytes]] = request.args  # type: ignore
+        remote_room_hosts = parse_strings_from_args(args, "server_name", required=False)
+        room_id, remote_room_hosts = await self.resolve_room_id(
+            room_identifier,
+            remote_room_hosts,
+        )
 
         await self.room_member_handler.update_membership(
             requester=requester,
@@ -1002,14 +986,14 @@ class RoomSpaceSummaryRestServlet(RestServlet):
     def __init__(self, hs: "HomeServer"):
         super().__init__()
         self._auth = hs.get_auth()
-        self._space_summary_handler = hs.get_space_summary_handler()
+        self._room_summary_handler = hs.get_room_summary_handler()
 
     async def on_GET(
         self, request: SynapseRequest, room_id: str
     ) -> Tuple[int, JsonDict]:
         requester = await self._auth.get_user_by_req(request, allow_guest=True)
 
-        return 200, await self._space_summary_handler.get_space_summary(
+        return 200, await self._room_summary_handler.get_space_summary(
             requester.user.to_string(),
             room_id,
             suggested_only=parse_boolean(request, "suggested_only", default=False),
@@ -1035,7 +1019,7 @@ class RoomSpaceSummaryRestServlet(RestServlet):
                 400, "'max_rooms_per_space' must be an integer", Codes.BAD_JSON
             )
 
-        return 200, await self._space_summary_handler.get_space_summary(
+        return 200, await self._room_summary_handler.get_space_summary(
             requester.user.to_string(),
             room_id,
             suggested_only=suggested_only,
@@ -1054,7 +1038,7 @@ class RoomHierarchyRestServlet(RestServlet):
     def __init__(self, hs: "HomeServer"):
         super().__init__()
         self._auth = hs.get_auth()
-        self._space_summary_handler = hs.get_space_summary_handler()
+        self._room_summary_handler = hs.get_room_summary_handler()
 
     async def on_GET(
         self, request: SynapseRequest, room_id: str
@@ -1073,7 +1057,7 @@ class RoomHierarchyRestServlet(RestServlet):
                 400, "'limit' must be a positive integer", Codes.BAD_JSON
             )
 
-        return 200, await self._space_summary_handler.get_room_hierarchy(
+        return 200, await self._room_summary_handler.get_room_hierarchy(
             requester.user.to_string(),
             room_id,
             suggested_only=parse_boolean(request, "suggested_only", default=False),
@@ -1083,6 +1067,44 @@ class RoomHierarchyRestServlet(RestServlet):
         )
 
 
+class RoomSummaryRestServlet(ResolveRoomIdMixin, RestServlet):
+    PATTERNS = (
+        re.compile(
+            "^/_matrix/client/unstable/im.nheko.summary"
+            "/rooms/(?P<room_identifier>[^/]*)/summary$"
+        ),
+    )
+
+    def __init__(self, hs: "HomeServer"):
+        super().__init__(hs)
+        self._auth = hs.get_auth()
+        self._room_summary_handler = hs.get_room_summary_handler()
+
+    async def on_GET(
+        self, request: SynapseRequest, room_identifier: str
+    ) -> Tuple[int, JsonDict]:
+        try:
+            requester = await self._auth.get_user_by_req(request, allow_guest=True)
+            requester_user_id: Optional[str] = requester.user.to_string()
+        except MissingClientTokenError:
+            # auth is optional
+            requester_user_id = None
+
+        # twisted.web.server.Request.args is incorrectly defined as Optional[Any]
+        args: Dict[bytes, List[bytes]] = request.args  # type: ignore
+        remote_room_hosts = parse_strings_from_args(args, "via", required=False)
+        room_id, remote_room_hosts = await self.resolve_room_id(
+            room_identifier,
+            remote_room_hosts,
+        )
+
+        return 200, await self._room_summary_handler.get_room_summary(
+            requester_user_id,
+            room_id,
+            remote_room_hosts,
+        )
+
+
 def register_servlets(hs: "HomeServer", http_server, is_worker=False):
     RoomStateEventRestServlet(hs).register(http_server)
     RoomMemberListRestServlet(hs).register(http_server)
@@ -1098,6 +1120,8 @@ def register_servlets(hs: "HomeServer", http_server, is_worker=False):
     RoomEventContextServlet(hs).register(http_server)
     RoomSpaceSummaryRestServlet(hs).register(http_server)
     RoomHierarchyRestServlet(hs).register(http_server)
+    if hs.config.experimental.msc3266_enabled:
+        RoomSummaryRestServlet(hs).register(http_server)
     RoomEventServlet(hs).register(http_server)
     JoinedRoomsRestServlet(hs).register(http_server)
     RoomAliasListServlet(hs).register(http_server)