From eb7e81ca4f3893ea9d482a352997a4ece9edddaa Mon Sep 17 00:00:00 2001
From: Till Faelligen <tfaelligen@gmail.com>
Date: Mon, 2 May 2022 08:20:36 +0200
Subject: [PATCH] Return "null" if MaxFileSizeBytes is 0

---
 mediaapi/routing/routing.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/mediaapi/routing/routing.go b/mediaapi/routing/routing.go
index 0e1583991..afe62766e 100644
--- a/mediaapi/routing/routing.go
+++ b/mediaapi/routing/routing.go
@@ -35,7 +35,7 @@ import (
 // configResponse is the response to GET /_matrix/media/r0/config
 // https://matrix.org/docs/spec/client_server/latest#get-matrix-media-r0-config
 type configResponse struct {
-	UploadSize config.FileSizeBytes `json:"m.upload.size"`
+	UploadSize *config.FileSizeBytes `json:"m.upload.size"`
 }
 
 // Setup registers the media API HTTP handlers
@@ -73,9 +73,13 @@ func Setup(
 		if r := rateLimits.Limit(req); r != nil {
 			return *r
 		}
+		respondSize := cfg.MaxFileSizeBytes
+		if *cfg.MaxFileSizeBytes == 0 {
+			respondSize = nil
+		}
 		return util.JSONResponse{
 			Code: http.StatusOK,
-			JSON: configResponse{UploadSize: *cfg.MaxFileSizeBytes},
+			JSON: configResponse{UploadSize: respondSize},
 		}
 	})