Add /_dendrite/admin/evacuateRoom/{roomID} (#2401)

* Add new endpoint to allow admins to evacuate the local server from the room

* Guard endpoint

* Use right prefix

* Auth API

* More useful return error rather than a panic

* More useful return value again

* Update the path

* Try using inputer instead

* oh provide the config

* Try that again

* Return affected user IDs

* Don't create so many forward extremities

* Add missing `Path` to name

Co-authored-by: Till <2353100+S7evinK@users.noreply.github.com>

build/gobind-pinecone/monolith.go

@@ -314,6 +314,7 @@ func (m *DendriteMonolith) Start() {
 		base.PublicWellKnownAPIMux,
 		base.PublicMediaAPIMux,
 		base.SynapseAdminMux,
+		base.DendriteAdminMux,
 	)
 
 	httpRouter := mux.NewRouter().SkipClean(true).UseEncodedPath()

build/gobind-yggdrasil/monolith.go

@@ -152,6 +152,7 @@ func (m *DendriteMonolith) Start() {
 		base.PublicWellKnownAPIMux,
 		base.PublicMediaAPIMux,
 		base.SynapseAdminMux,
+		base.DendriteAdminMux,
 	)
 
 	httpRouter := mux.NewRouter()