From 3324fbd820625baa47d3d4a45a497a3ed910a2fa Mon Sep 17 00:00:00 2001
From: Meenal Trivedi <meenaltrivedi6102@gmail.com>
Date: Sun, 18 Jul 2021 20:20:52 +0530
Subject: [PATCH] fix:Inviting to an unsupported room version return M_BAD_JSON
 instead of M_UNSUPPORTED_ROOM_VERSION

Signed-off-by: Meenal Trivedi <meenaltrivedi6102@gmail.com>
---
 federationapi/routing/invite.go | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/federationapi/routing/invite.go b/federationapi/routing/invite.go
index 8795118ee..d6e627b95 100644
--- a/federationapi/routing/invite.go
+++ b/federationapi/routing/invite.go
@@ -37,8 +37,18 @@ func InviteV2(
 	cfg *config.FederationAPI,
 	rsAPI api.RoomserverInternalAPI,
 	keys gomatrixserverlib.JSONVerifier,
-) util.JSONResponse {
+) util.JSONResponse {git 
+
 	inviteReq := gomatrixserverlib.InviteV2Request{}
+	// Check to see if the room_version is supported
+	if _, err := roomserverVersion.SupportedRoomVersion(inviteReq.RoomVersion()); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.UnsupportedRoomVersion(
+				fmt.Sprintf("Room version %q is not supported by this server.", inviteReq.RoomVersion()),
+			),
+		}
+	}
 	err := json.Unmarshal(request.Content(), &inviteReq)
 	switch err.(type) {
 	case gomatrixserverlib.BadJSONError: