Add an admin API to check if a username is available (#10578)

This adds a new API GET /_synapse/admin/v1/username_available?username=foo to check if a username is available. It is the counterpart to https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-register-available, except that it works even if registration is disabled.

1 files changed, 2 insertions, 0 deletions

diff --git a/synapse/rest/admin/__init__.py b/synapse/rest/admin/__init__.py

index abf749b001..8a91068092 100644
--- a/synapse/rest/admin/__init__.py
+++ b/synapse/rest/admin/__init__.py
@@ -51,6 +51,7 @@ from synapse.rest.admin.rooms import (
 )
 from synapse.rest.admin.server_notice_servlet import SendServerNoticeServlet
 from synapse.rest.admin.statistics import UserMediaStatisticsRestServlet
+from synapse.rest.admin.username_available import UsernameAvailableRestServlet
 from synapse.rest.admin.users import (
     AccountValidityRenewServlet,
     DeactivateAccountRestServlet,
@@ -241,6 +242,7 @@ def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
     ForwardExtremitiesRestServlet(hs).register(http_server)
     RoomEventContextServlet(hs).register(http_server)
     RateLimitRestServlet(hs).register(http_server)
+    UsernameAvailableRestServlet(hs).register(http_server)
 
 
 def register_servlets_for_client_rest_resource(