From e4a25d022c1e4b71e043b07324d95362f7fb4067 Mon Sep 17 00:00:00 2001
From: Dirk Klimpel <5740567+dklimpel@users.noreply.github.com>
Date: Fri, 14 Apr 2023 18:26:07 +0200
Subject: [PATCH] Load `/capabilities` endpoint on workers (#15436)

---
 changelog.d/15436.feature             | 1 +
 docker/configure_workers_and_start.py | 1 +
 docs/workers.md                       | 1 +
 synapse/rest/__init__.py              | 2 +-
 synapse/rest/client/capabilities.py   | 1 +
 5 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 changelog.d/15436.feature

diff --git a/changelog.d/15436.feature b/changelog.d/15436.feature
new file mode 100644
index 0000000000..d83f8c3e4a
--- /dev/null
+++ b/changelog.d/15436.feature
@@ -0,0 +1 @@
+Allow loading `/capabilities` endpoint on workers.
\ No newline at end of file
diff --git a/docker/configure_workers_and_start.py b/docker/configure_workers_and_start.py
index 26f92b3f1a..4beec3daaf 100755
--- a/docker/configure_workers_and_start.py
+++ b/docker/configure_workers_and_start.py
@@ -174,6 +174,7 @@ WORKERS_CONFIG: Dict[str, Dict[str, Any]] = {
             "^/_matrix/client/(r0|v3|unstable)/user/.*/filter(/|$)",
             "^/_matrix/client/(r0|v3|unstable)/password_policy$",
             "^/_matrix/client/(api/v1|r0|v3|unstable)/directory/room/.*$",
+            "^/_matrix/client/(r0|v3|unstable)/capabilities$",
         ],
         "shared_extra_conf": {},
         "worker_extra_conf": "",
diff --git a/docs/workers.md b/docs/workers.md
index cb2333e4a5..6192a46e09 100644
--- a/docs/workers.md
+++ b/docs/workers.md
@@ -235,6 +235,7 @@ information.
     ^/_matrix/client/(api/v1|r0|v3|unstable)/search$
     ^/_matrix/client/(r0|v3|unstable)/user/.*/filter(/|$)
     ^/_matrix/client/(api/v1|r0|v3|unstable)/directory/room/.*$
+    ^/_matrix/client/(r0|v3|unstable)/capabilities$
 
     # Encryption requests
     ^/_matrix/client/(r0|v3|unstable)/keys/query$
diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py
index 19603ed137..1af8d99d20 100644
--- a/synapse/rest/__init__.py
+++ b/synapse/rest/__init__.py
@@ -133,8 +133,8 @@ class ClientRestResource(JsonResource):
         if is_main_process:
             room_upgrade_rest_servlet.register_servlets(hs, client_resource)
         room_batch.register_servlets(hs, client_resource)
+        capabilities.register_servlets(hs, client_resource)
         if is_main_process:
-            capabilities.register_servlets(hs, client_resource)
             account_validity.register_servlets(hs, client_resource)
         relations.register_servlets(hs, client_resource)
         password_policy.register_servlets(hs, client_resource)
diff --git a/synapse/rest/client/capabilities.py b/synapse/rest/client/capabilities.py
index e84dde31b1..0dbf8f6818 100644
--- a/synapse/rest/client/capabilities.py
+++ b/synapse/rest/client/capabilities.py
@@ -33,6 +33,7 @@ class CapabilitiesRestServlet(RestServlet):
     """End point to expose the capabilities of the server."""
 
     PATTERNS = client_patterns("/capabilities$")
+    CATEGORY = "Client API requests"
 
     def __init__(self, hs: "HomeServer"):
         super().__init__()