Add filtered handler for videoplayback

src/helpers.cr

@@ -29,6 +29,30 @@ class Config
   })
 end
 
+class FilteredCompressHandler < Kemal::Handler
+  exclude ["/videoplayback"]
+
+  def call(env)
+    return call_next env if exclude_match? env
+
+    {% if flag?(:without_zlib) %}
+      call_next env
+    {% else %}
+      request_headers = env.request.headers
+
+      if request_headers.includes_word?("Accept-Encoding", "gzip")
+        env.response.headers["Content-Encoding"] = "gzip"
+        env.response.output = Gzip::Writer.new(env.response.output, sync_close: true)
+      elsif request_headers.includes_word?("Accept-Encoding", "deflate")
+        env.response.headers["Content-Encoding"] = "deflate"
+        env.response.output = Flate::Writer.new(env.response.output, sync_close: true)
+      end
+
+      call_next env
+    {% end %}
+  end
+end
+
 class Video
   module HTTPParamConverter
     def self.from_rs(rs)

src/invidious.cr

@@ -872,6 +872,7 @@ static_headers do |response, filepath, filestat|
 end
 
 public_folder "assets"
-gzip true
+
+add_handler FilteredCompressHandler.new
 
 Kemal.run