3 files changed, 61 insertions, 2 deletions
diff --git a/synapse/rest/admin/users.py b/synapse/rest/admin/users.py
index 998a0ef671..9c701c7348 100644
--- a/synapse/rest/admin/users.py
+++ b/synapse/rest/admin/users.py
@@ -35,6 +35,7 @@ from synapse.rest.admin._base import (
     assert_user_is_admin,
 )
 from synapse.rest.client.v2_alpha._base import client_patterns
+from synapse.storage.databases.main.media_repository import MediaSortOrder
 from synapse.types import JsonDict, UserID
 
 if TYPE_CHECKING:
@@ -832,8 +833,33 @@ class UserMediaRestServlet(RestServlet):
                 errcode=Codes.INVALID_PARAM,
             )
 
+        # If neither `order_by` nor `dir` is set, set the default order
+        # to newest media is on top for backward compatibility.
+        if b"order_by" not in request.args and b"dir" not in request.args:
+            order_by = MediaSortOrder.CREATED_TS.value
+            direction = "b"
+        else:
+            order_by = parse_string(
+                request,
+                "order_by",
+                default=MediaSortOrder.CREATED_TS.value,
+                allowed_values=(
+                    MediaSortOrder.MEDIA_ID.value,
+                    MediaSortOrder.UPLOAD_NAME.value,
+                    MediaSortOrder.CREATED_TS.value,
+                    MediaSortOrder.LAST_ACCESS_TS.value,
+                    MediaSortOrder.MEDIA_LENGTH.value,
+                    MediaSortOrder.MEDIA_TYPE.value,
+                    MediaSortOrder.QUARANTINED_BY.value,
+                    MediaSortOrder.SAFE_FROM_QUARANTINE.value,
+                ),
+            )
+            direction = parse_string(
+                request, "dir", default="f", allowed_values=("f", "b")
+            )
+
         media, total = await self.store.get_local_media_by_user_paginate(
-            start, limit, user_id
+            start, limit, user_id, order_by, direction
         )
 
         ret = {"media": media, "total": total}
diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py
index 6e2fbedd99..925edfc402 100644
--- a/synapse/rest/client/v1/login.py
+++ b/synapse/rest/client/v1/login.py
@@ -20,6 +20,7 @@ from synapse.api.errors import Codes, LoginError, SynapseError
 from synapse.api.ratelimiting import Ratelimiter
 from synapse.appservice import ApplicationService
 from synapse.handlers.sso import SsoIdentityProvider
+from synapse.http import get_request_uri
 from synapse.http.server import HttpServer, finish_request
 from synapse.http.servlet import (
     RestServlet,
@@ -354,6 +355,7 @@ class SsoRedirectServlet(RestServlet):
             hs.get_oidc_handler()
         self._sso_handler = hs.get_sso_handler()
         self._msc2858_enabled = hs.config.experimental.msc2858_enabled
+        self._public_baseurl = hs.config.public_baseurl
 
     def register(self, http_server: HttpServer) -> None:
         super().register(http_server)
@@ -373,6 +375,32 @@ class SsoRedirectServlet(RestServlet):
     async def on_GET(
         self, request: SynapseRequest, idp_id: Optional[str] = None
     ) -> None:
+        if not self._public_baseurl:
+            raise SynapseError(400, "SSO requires a valid public_baseurl")
+
+        # if this isn't the expected hostname, redirect to the right one, so that we
+        # get our cookies back.
+        requested_uri = get_request_uri(request)
+        baseurl_bytes = self._public_baseurl.encode("utf-8")
+        if not requested_uri.startswith(baseurl_bytes):
+            # swap out the incorrect base URL for the right one.
+            #
+            # The idea here is to redirect from
+            #    https://foo.bar/whatever/_matrix/...
+            # to
+            #    https://public.baseurl/_matrix/...
+            #
+            i = requested_uri.index(b"/_matrix")
+            new_uri = baseurl_bytes[:-1] + requested_uri[i:]
+            logger.info(
+                "Requested URI %s is not canonical: redirecting to %s",
+                requested_uri.decode("utf-8", errors="replace"),
+                new_uri.decode("utf-8", errors="replace"),
+            )
+            request.redirect(new_uri)
+            finish_request(request)
+            return
+
         client_redirect_url = parse_string(
             request, "redirectUrl", required=True, encoding=None
         )
diff --git a/synapse/rest/synapse/client/__init__.py b/synapse/rest/synapse/client/__init__.py
index 8588b6d271..9eeb970580 100644
--- a/synapse/rest/synapse/client/__init__.py
+++ b/synapse/rest/synapse/client/__init__.py
@@ -54,7 +54,12 @@ def build_synapse_client_resource_tree(hs: "HomeServer") -> Mapping[str, Resourc
     if hs.config.saml2_enabled:
         from synapse.rest.synapse.client.saml2 import SAML2Resource
 
-        resources["/_synapse/client/saml2"] = SAML2Resource(hs)
+        res = SAML2Resource(hs)
+        resources["/_synapse/client/saml2"] = res
+
+        # This is also mounted under '/_matrix' for backwards-compatibility.
+        # To be removed in Synapse v1.32.0.
+        resources["/_matrix/saml2"] = res
 
     return resources