Use make_client instead of calling HTTP::Client (#4709)

No related issue

src/invidious/routes/api/v1/search.cr

@@ -31,9 +31,7 @@ module Invidious::Routes::API::V1::Search
     query = env.params.query["q"]? || ""
 
     begin
-      client = HTTP::Client.new("suggestqueries-clients6.youtube.com")
-      client.before_request { |r| add_yt_headers(r) }
-
+      client = make_client(URI.parse("https://suggestqueries-clients6.youtube.com"), force_youtube_headers: true)
       url = "/complete/search?client=youtube&hl=en&gl=#{region}&q=#{URI.encode_www_form(query)}&gs_ri=youtube&ds=yt"
 
       response = client.get(url).body

src/invidious/yt_backend/connection_pool.cr

@@ -23,11 +23,8 @@ struct YoutubeConnectionPool
     rescue ex
       conn.close
 
-      conn = HTTP::Client.new(url)
-      conn.proxy = make_configured_http_proxy_client() if CONFIG.http_proxy
-      conn.family = CONFIG.force_resolve
-      conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
-      conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
+      conn = make_client(url, force_resolve: true)
+
       response = yield conn
     ensure
       pool.release(conn)
@@ -38,11 +35,7 @@ struct YoutubeConnectionPool
 
   private def build_pool
     DB::Pool(HTTP::Client).new(initial_pool_size: 0, max_pool_size: capacity, max_idle_pool_size: capacity, checkout_timeout: timeout) do
-      conn = HTTP::Client.new(url)
-      conn.family = CONFIG.force_resolve
-      conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
-      conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
-      conn
+      next make_client(url, force_resolve: true)
     end
   end
 end
@@ -62,15 +55,17 @@ def add_yt_headers(request)
   end
 end
 
-def make_client(url : URI, region = nil, force_resolve : Bool = false)
+def make_client(url : URI, region = nil, force_resolve : Bool = false, force_youtube_headers : Bool = false)
   client = HTTP::Client.new(url)
+  client.proxy = make_configured_http_proxy_client() if CONFIG.http_proxy
 
   # Force the usage of a specific configured IP Family
   if force_resolve
     client.family = CONFIG.force_resolve
+    client.family = Socket::Family::INET if client.family == Socket::Family::UNSPEC
   end
 
-  client.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
+  client.before_request { |r| add_yt_headers(r) } if url.host.try &.ends_with?("youtube.com") || force_youtube_headers
   client.read_timeout = 10.seconds
   client.connect_timeout = 10.seconds