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authorreivilibre <oliverw@matrix.org>2022-07-27 10:37:50 +0000
committerGitHub <noreply@github.com>2022-07-27 10:37:50 +0000
commit39be5bc550f2e882b4754c7d98c906d9bde8b649 (patch)
tree5174a0e60c4faf3bace0cac50257f8a0818889b3
parentFix `get_pdu` asking every remote destination even after it finds an event (#... (diff)
downloadsynapse-39be5bc550f2e882b4754c7d98c906d9bde8b649.tar.xz
Make minor clarifications to the error messages given when we fail to join a room via any server. (#13160)
-rw-r--r--changelog.d/13160.misc1
-rw-r--r--synapse/federation/federation_client.py8
-rw-r--r--synapse/handlers/room_member.py6
-rw-r--r--tests/rest/admin/test_room.py5
4 files changed, 17 insertions, 3 deletions
diff --git a/changelog.d/13160.misc b/changelog.d/13160.misc
new file mode 100644
index 0000000000..36ff50c2a6
--- /dev/null
+++ b/changelog.d/13160.misc
@@ -0,0 +1 @@
+Make minor clarifications to the error messages given when we fail to join a room via any server.
\ No newline at end of file
diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py
index 02276ed995..6a8d76529b 100644
--- a/synapse/federation/federation_client.py
+++ b/synapse/federation/federation_client.py
@@ -725,6 +725,12 @@ class FederationClient(FederationBase):
         if failover_errcodes is None:
             failover_errcodes = ()
 
+        if not destinations:
+            # Give a bit of a clearer message if no servers were specified at all.
+            raise SynapseError(
+                502, f"Failed to {description} via any server: No servers specified."
+            )
+
         for destination in destinations:
             if destination == self.server_name:
                 continue
@@ -774,7 +780,7 @@ class FederationClient(FederationBase):
                     "Failed to %s via %s", description, destination, exc_info=True
                 )
 
-        raise SynapseError(502, "Failed to %s via any server" % (description,))
+        raise SynapseError(502, f"Failed to {description} via any server")
 
     async def make_membership_event(
         self,
diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py
index 30b4cb23df..520c52e013 100644
--- a/synapse/handlers/room_member.py
+++ b/synapse/handlers/room_member.py
@@ -1679,7 +1679,11 @@ class RoomMemberMasterHandler(RoomMemberHandler):
         ]
 
         if len(remote_room_hosts) == 0:
-            raise SynapseError(404, "No known servers")
+            raise SynapseError(
+                404,
+                "Can't join remote room because no servers "
+                "that are in the room have been provided.",
+            )
 
         check_complexity = self.hs.config.server.limit_remote_rooms.enabled
         if (
diff --git a/tests/rest/admin/test_room.py b/tests/rest/admin/test_room.py
index 2526136ff8..623883b53c 100644
--- a/tests/rest/admin/test_room.py
+++ b/tests/rest/admin/test_room.py
@@ -1873,7 +1873,10 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
         )
 
         self.assertEqual(HTTPStatus.NOT_FOUND, channel.code, msg=channel.json_body)
-        self.assertEqual("No known servers", channel.json_body["error"])
+        self.assertEqual(
+            "Can't join remote room because no servers that are in the room have been provided.",
+            channel.json_body["error"],
+        )
 
     def test_room_is_not_valid(self) -> None:
         """