Stabilize MSC2659 support

Signed-off-by: Tulir Asokan <tulir@maunium.net>

changelog.d/15528.feature

@@ -0,0 +1 @@
+Stabilized support for [MSC2659](https://github.com/matrix-org/matrix-spec-proposals/pull/2659): application service ping endpoint. Contributed by Tulir @ Beeper.

synapse/appservice/api.py

@@ -326,7 +326,7 @@ async def ping(self, service: "ApplicationService", txn_id: Optional[str]) -> No
         assert service.hs_token is not None
 
         await self.post_json_get_json(
-            uri=f"{service.url}{APP_SERVICE_UNSTABLE_PREFIX}/fi.mau.msc2659/ping",
+            uri=f"{service.url}{APP_SERVICE_PREFIX}/ping",
             post_json={"transaction_id": txn_id},
             headers={"Authorization": [f"Bearer {service.hs_token}"]},
         )

synapse/config/experimental.py

@@ -189,9 +189,6 @@ def read_config(self, config: JsonDict, **kwargs: Any) -> None:
         # MSC3967: Do not require UIA when first uploading cross signing keys
         self.msc3967_enabled = experimental.get("msc3967_enabled", False)
 
-        # MSC2659: Application service ping endpoint
-        self.msc2659_enabled = experimental.get("msc2659_enabled", False)
-
         # MSC3981: Recurse relations
         self.msc3981_recurse_relations = experimental.get(
             "msc3981_recurse_relations", False

synapse/rest/client/appservice_ping.py

@@ -39,9 +39,8 @@
 
 class AppservicePingRestServlet(RestServlet):
     PATTERNS = client_patterns(
-        "/fi.mau.msc2659/appservice/(?P<appservice_id>[^/]*)/ping",
-        unstable=True,
-        releases=(),
+        "/appservice/(?P<appservice_id>[^/]*)/ping",
+        releases=("v1",),
     )
 
     def __init__(self, hs: "HomeServer"):
@@ -107,9 +106,8 @@ async def on_POST(
 
         duration = time.monotonic() - start
 
-        return HTTPStatus.OK, {"duration": int(duration * 1000)}
+        return HTTPStatus.OK, {"duration_ms": int(duration * 1000)}
 
 
 def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
-    if hs.config.experimental.msc2659_enabled:
-        AppservicePingRestServlet(hs).register(http_server)
+    AppservicePingRestServlet(hs).register(http_server)

synapse/rest/client/versions.py

@@ -111,7 +111,7 @@ def on_GET(self, request: Request) -> Tuple[int, JsonDict]:
                     # Allows moderators to fetch redacted event content as described in MSC2815
                     "fi.mau.msc2815": self.config.experimental.msc2815_enabled,
                     # Adds a ping endpoint for appservices to check HS->AS connection
-                    "fi.mau.msc2659": self.config.experimental.msc2659_enabled,
+                    "fi.mau.msc2659.stable": True,  # TODO: remove when "v1.7" is added above
                     # Adds support for login token requests as per MSC3882
                     "org.matrix.msc3882": self.config.experimental.msc3882_enabled,
                     # Adds support for remotely enabling/disabling pushers, as per MSC3881