[YouTube Bridge] - YouTube failed with error 0

[dariottolo]

I am having the following issue with Youtube bridge for a couple of days.

Please let me know if you need additional information

Uncaught Exception HttpException: HTTP/2 stream 0 was not closed cleanly: PROTOCOL_ERROR (err 1) (92) at lib/contents.php line 230

#0 index.php:32
#1 actions/DisplayAction.php:136
#2 bridges/YoutubeBridge.php:342
#3 bridges/YoutubeBridge.php:227
#4 lib/contents.php:284
#5 lib/contents.php:107
#6 lib/contents.php:230

Query string:action=display&bridge=YoutubeBridge&context=By+channel+id&c=UCHL9bfHTxCMi-7vfxQ-AYtg&duration_min=&duration_max=&format=Html
Version:git.master.a0a0d52

Error_log is full of:
[01-Aug-2022 09:43:37 UTC] HttpException: HTTP/2 stream 0 was not closed cleanly: PROTOCOL_ERROR (err 1) (92) in /home/diludovi/public_html/bridge/lib/contents.php:230
Stack trace:
#0 /home/diludovi/public_html/bridge/lib/contents.php(107): _http_request('https://www.you...', Array)
#1 /home/diludovi/public_html/bridge/lib/contents.php(284): getContents('https://www.you...', Array, Array)
#2 /home/diludovi/public_html/bridge/bridges/YoutubeBridge.php(227): getSimpleHTMLDOM('https://www.you...', Array, Array, true, true, 'UTF-8', false, '\r\n', ' ')
#3 /home/diludovi/public_html/bridge/bridges/YoutubeBridge.php(342): YoutubeBridge->ytGetSimpleHTMLDOM('https://www.you...')
#4 /home/diludovi/public_html/bridge/actions/DisplayAction.php(136): YoutubeBridge->collectData()
#5 /home/diludovi/public_html/bridge/index.php(32): DisplayAction->execute(Array)
#6 {main}

[dvikan]

Looks like intermittent network failure. But if you are persistently getting this error it's concerning. Are you sure it's persistent? Is it your private instance? I am not getting this error on my instance.

[dariottolo]

I started noticing a couple of days ago. Since then, every single update has the same output.
RSS-Bridge in on my shared hosting account, password protected. All other bridges are working fine.
I am not very tech savvy, but if you want me to run more tests, let me know.

[dvikan]

What's the server OS and php version?

[dariottolo]

LiteSpeed V8.0.1 Cloudlinux 1.3
PHP Version 8.1.8

[dvikan]

I don't fully understand this errror yet. Maybe the most recent php/curl uses HTTP 2 by default or something. Maybe try this patch if you are able to edit the files:

diff --git a/lib/contents.php b/lib/contents.php
index 94e45b95..6a146c68 100644
--- a/lib/contents.php
+++ b/lib/contents.php
@@ -181,6 +181,7 @@ function _http_request(string $url, array $config = []): array
     curl_setopt($ch, CURLOPT_TIMEOUT, $config['timeout']);
     curl_setopt($ch, CURLOPT_ENCODING, '');
     curl_setopt($ch, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
+    curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
     if ($config['proxy']) {
         curl_setopt($ch, CURLOPT_PROXY, $config['proxy']);
     }

[dariottolo]

I added the line to contents.php but there were no differences in the output

[dvikan]

Might be a cached result you are seeing. Wait a bit (3 hours) or enable debugging with touch DEBUG or edit the CACHE_TIMEOUT in bridges/YoutubeBridge.php

[dariottolo]

You were absolutely right. I enabled debugging and it is now working as expected (so far, fingers crossed).
Thanks a lot.

[dvikan]

So looks like recent version of libcurl uses HTTP 2 by default instead of HTTP 1.1. I'm not familiar with HTTP 2 and I still don't understand why the error. But I guess we can merge this change into master to preserve the usage of HTTP 1.1.

[dvikan]

I was unable to reproduce this on Debian 11, PHP 8.1.8. Maybe it was a youtube intermittent error?

[dariottolo]

Should I un-apply your patch and see if the error occurs?

[dvikan]

Sure :)

[dariottolo]

I removed the patch and the bridge does not work for me.

[dvikan]

My install has libcurl 7.74.0 which I found via <?php phpinfo();. Whats yours?

[dariottolo]

cURL Information: 7.84.0

[dvikan]

https://stackoverflow.com/questions/56865217/php-curl-error-http-2-stream-0-was-not-closed-cleanly-protocol-error-err-1