From 38053a5bb7af9bba522225fc62bee73d363bff85 Mon Sep 17 00:00:00 2001
From: Kegsay <kegan@matrix.org>
Date: Wed, 17 Jun 2020 13:55:55 +0100
Subject: Do not wrap send_join errors on /v1/send_join (#1143)

* Do not wrap v1 send_join errors in [code, body]

* Don't wrap errors
---
 federationapi/routing/routing.go | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/federationapi/routing/routing.go b/federationapi/routing/routing.go
index 649a43c6..645f397d 100644
--- a/federationapi/routing/routing.go
+++ b/federationapi/routing/routing.go
@@ -18,6 +18,7 @@ import (
 	"net/http"
 
 	"github.com/gorilla/mux"
+	"github.com/matrix-org/dendrite/clientapi/jsonerror"
 	eduserverAPI "github.com/matrix-org/dendrite/eduserver/api"
 	federationSenderAPI "github.com/matrix-org/dendrite/federationsender/api"
 	"github.com/matrix-org/dendrite/internal/config"
@@ -203,12 +204,20 @@ func Setup(
 			res := SendJoin(
 				httpReq, request, cfg, rsAPI, keys, roomID, eventID,
 			)
+			// not all responses get wrapped in [code, body]
+			var body interface{}
+			body = []interface{}{
+				res.Code, res.JSON,
+			}
+			jerr, ok := res.JSON.(*jsonerror.MatrixError)
+			if ok {
+				body = jerr
+			}
+
 			return util.JSONResponse{
 				Headers: res.Headers,
 				Code:    res.Code,
-				JSON: []interface{}{
-					res.Code, res.JSON,
-				},
+				JSON:    body,
 			}
 		},
 	)).Methods(http.MethodPut)
-- 
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