From cc684ff0b1bfb358f5ef567865e23a532b168132 Mon Sep 17 00:00:00 2001
From: saltycrys <73420320+saltycrys@users.noreply.github.com>
Date: Thu, 3 Dec 2020 21:02:52 +0100
Subject: [PATCH] Fix redirect channels

Redirect channels may use JS to redirect now, instead of only a response header
as it used to be. This fix reads the channel to redirect to from `ytInitialData`.
---
 src/invidious/channels.cr | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/invidious/channels.cr b/src/invidious/channels.cr
index 93507c56..444a6eda 100644
--- a/src/invidious/channels.cr
+++ b/src/invidious/channels.cr
@@ -801,6 +801,10 @@ def get_about_info(ucid, locale)
     raise InfoException.new(error_message)
   end
 
+  if browse_endpoint = initdata["onResponseReceivedActions"]?.try &.[0]?.try &.["navigateAction"]?.try &.["endpoint"]?.try &.["browseEndpoint"]?
+    raise ChannelRedirect.new(channel_id: browse_endpoint["browseId"].to_s)
+  end
+
   author = initdata["metadata"]["channelMetadataRenderer"]["title"].as_s
   author_url = initdata["metadata"]["channelMetadataRenderer"]["channelUrl"].as_s
   author_thumbnail = initdata["metadata"]["channelMetadataRenderer"]["avatar"]["thumbnails"][0]["url"].as_s