From 96071eea8f5e18282c07da3a61e4b3431f694cc5 Mon Sep 17 00:00:00 2001 From: Dionysis Grigoropoulos Date: Mon, 23 Mar 2020 11:48:28 +0200 Subject: [PATCH] Set Referrer-Policy to no-referrer for media (#7009) --- changelog.d/7009.feature | 1 + synapse/rest/media/v1/download_resource.py | 3 +++ 2 files changed, 4 insertions(+) create mode 100644 changelog.d/7009.feature diff --git a/changelog.d/7009.feature b/changelog.d/7009.feature new file mode 100644 index 000000000..cd2705d5b --- /dev/null +++ b/changelog.d/7009.feature @@ -0,0 +1 @@ +Set `Referrer-Policy` header to `no-referrer` on media downloads. diff --git a/synapse/rest/media/v1/download_resource.py b/synapse/rest/media/v1/download_resource.py index 66a01559e..24d3ae5bb 100644 --- a/synapse/rest/media/v1/download_resource.py +++ b/synapse/rest/media/v1/download_resource.py @@ -50,6 +50,9 @@ class DownloadResource(DirectServeResource): b" media-src 'self';" b" object-src 'self';", ) + request.setHeader( + b"Referrer-Policy", b"no-referrer", + ) server_name, media_id, name = parse_media_id(request) if server_name == self.server_name: await self.media_repo.get_local_media(request, media_id, name)