rc: add NeedsRequest to call.

fs/operations/rc.go

@@ -138,10 +138,11 @@ func rcMoveOrCopyFile(ctx context.Context, in rc.Params, cp bool) (out rc.Params
 
 func init() {
 	for _, op := range []struct {
-		name     string
+		name         string
-		title    string
+		title        string
-		help     string
+		help         string
-		noRemote bool
+		noRemote     bool
+		needsRequest bool
 	}{
 		{name: "mkdir", title: "Make a destination directory or container"},
 		{name: "rmdir", title: "Remove an empty directory or container"},
@@ -160,6 +161,7 @@ func init() {
 		rc.Add(rc.Call{
 			Path:         "operations/" + op.name,
 			AuthRequired: true,
+			NeedsRequest: op.needsRequest,
 			Fn: func(ctx context.Context, in rc.Params) (rc.Params, error) {
 				return rcSingleCommand(ctx, in, op.name, op.noRemote)
 			},

fs/rc/rcserver/rcserver.go

@@ -248,7 +248,6 @@ func (s *Server) handlePost(w http.ResponseWriter, r *http.Request, path string)
 			return
 		}
 	}
-
 	// Find the call
 	call := rc.Calls.Get(path)
 	if call == nil {
@@ -261,6 +260,10 @@ func (s *Server) handlePost(w http.ResponseWriter, r *http.Request, path string)
 		writeError(path, in, w, errors.Errorf("authentication must be set up on the rc server to use %q or the --rc-no-auth flag must be in use", path), http.StatusForbidden)
 		return
 	}
+	if call.NeedsRequest {
+		// Add the request to RC
+		in["_request"] = r
+	}
 
 	// Check to see if it is async or not
 	isAsync, err := in.GetBool("_async")

fs/rc/registry.go

@@ -22,6 +22,7 @@ type Call struct {
 	Title        string // help for the function
 	AuthRequired bool   // if set then this call requires authorisation to be set
 	Help         string // multi-line markdown formatted help
+	NeedsRequest bool   // if set then this call will be passed the original request object as _request
 }
 
 // Registry holds the list of all the registered remote control functions