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impossible to use netgen gallery with php8.0

blisslander — Fri, 19 Feb 2021 14:20:18 +0000

Since i updated my server to php8.0 i cannot use nextgen gallery.
i attempted to uninstall and reinstall it but it fails during installation.

some version info:

PHP 8.0.2 (cli) (built: Feb 14 2021 14:21:15) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.2, Copyright (c) Zend Technologies
with Zend OPcache v8.0.2, Copyright (c), by Zend Technologies

Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic

here is the nginx error log

2021/02/19 14:24:31 [error] 6646#6646: *3374855 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught ValueError: fread(): Argument #2 ($length) must be greater than 0 in /home/www/wp-admin/includes/class-pclzip.php:4212
Stack trace:
#0 /home/www/wp-admin/includes/class-pclzip.php(4212): fread()
#1 /home/www/wp-admin/includes/class-pclzip.php(3518): PclZip->privExtractFileAsString()
#2 /home/www/wp-admin/includes/class-pclzip.php(811): PclZip->privExtractByRule()
#3 /home/www/wp-admin/includes/file.php(1639): PclZip->extract()
#4 /home/www/wp-admin/includes/file.php(1476): _unzip_file_pclzip()
#5 /home/www/wp-admin/includes/class-wp-upgrader.php(328): unzip_file()
#6 /home/www/wp-admin/includes/class-wp-upgrader.php(779): WP_Upgrader->unpack_package()
#7 /home/www/wp-admin/includes/class-plugin-upgrader.php(137): WP_Upgrader->run()
#8 /home/www/wp-admin/includes/ajax-actions.php(4346): Plugin_Upgrader->install()
#9 /home/www/wp-includes/class-wp-hook.php(287): wp_ajax_ins" while reading response header from upstream, client: 79.143.250.149, server: clairelemoine.art, request: "POST /wp-admin/admin-ajax.php HTTP/2.0", upstream: "fastcgi://127.0.0.1:9000", host: "clairelemoine.art", referrer: "https://clairelemoine.art/wp-admin/plugin-install.php?s=nextgen&tab=search&type=term"

Thumbnail generation and wordpress.com document root change

kjandrews — Thu, 09 Apr 2020 10:48:37 +0000

Hi,

On the last release of this plugin we noticed thumbnail generation stopped working on a number of our sites, both on CPanel servers and our custom hosting setups.

The sites are running FPM chroot with open_basedir and other restrictions in place.

ABSPATH is set to /app as we are inside a chroot’ed environment
DOCUMENT_ROOT is set to /home/user/html/site.com/app/

The change breaking our sites (and by the looks of this support forum many others) is down to a bespoke section of code specifically for wordpress.com regardless of other setups:

./app/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/fs/package.module.fs.php

function initialize()
    {
        parent::initialize();
        // Special hack for wordpress.com hosted accounts where ABSPATH is outside the DOCUMENT_ROOT
        if (!empty($_SERVER['DOCUMENT_ROOT']) && strpos(ABSPATH, $_SERVER['DOCUMENT_ROOT']) === FALSE) {
            $root = $_SERVER['DOCUMENT_ROOT'];
        } else {
            $root = ABSPATH;
        }
        $this->_document_root = $this->set_document_root($root);
    }

So in our situation:

!empty($_SERVER['DOCUMENT_ROOT']) is true
strpos(ABSPATH, $_SERVER['DOCUMENT_ROOT']) is false as /home/user/html/site.com/app is not inside the string /app at any position

This triggers

$root = $_SERVER['DOCUMENT_ROOT'];

Which would set $root incorrectly to /home/user/html/site.com/app whereas PHP in a chroot like ours only knows about /app (chroot environments can only see inside their set path in theory).

Compounded by open_basedir set to /app as well our error logs were filling up with no such directory and access denied errors.

Current workarounds for now with some success:

FPM Config:

; WP Specific Absolute Path override for chroot
env[ABSPATH] = /app/

Sets the ABSPATH environment variable otherwise this will be set by wp-config.php

Apache Vhost:

ProxyPassMatch ^/(.*\.php)$ fcgi://127.0.0.1:9050/app/$1
SetEnv document_root "/app/"

This overrides the document root variable given to the FPM process via proxypassmatch which then makes sure when hitting the wordpress.com workaround we succeed in setting the correct file system absolute path.

Personally a webserver document root isn’t really a valid way to detect a programming language’s directory of operation, perhaps prefer the programming language features over the supplied webserver environment variable?

Redirect Loop with Quintus Theme

Steve — Tue, 22 Nov 2016 23:11:51 +0000

I have a multisite running WP 4.6.1 on PHP 7 via php-fpm and Apache. I have the latest version of quintus available on the multisite. On sites that are using the quintus theme, I’m getting an error in my apache log every time someone navigates to the site.

[core:error] [pid 86363] [client x.y.26.63:46166] AH00124: Request exceeded the limit of 10 internal redirects due to probable configuration error. Use ‘LimitInternalRecursion’ to increase the limit if necessary. Use ‘LogLevel debug’ to get a backtrace., referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3752): [client x.y.26.63:46166] AH00121: r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/
[core:debug] [pid 86363] core.c(3759): [client x.y.26.63:46166] AH00122: redirected from r->uri = /site1_test/wp-content/plugins/var/www/sites_htdocs/wp/wp-content/themes/quintus/quintus.css, referer: https://sites.example.com/site1_test/

This is only on sites using the quintus theme, so it seems to be an issue with the theme itself. Could anyone advise? Thank you!

PHP Redirect Loop

Steve — Tue, 22 Nov 2016 16:07:22 +0000

I’m running PHP7 via php-fpm and Apache. I’m seeing the following in my apache error log (with loglevel debug)

https://paste.debian.net/plainh/39c20686

Something seems wrong because the path is invalid. It’s looking in wp-content/plugins/var/www/sites_htdocs/wp/wp-content/…..

Is this a problem with the theme?

Thank you!

About Apache and Nginx

Dharator — Tue, 15 Nov 2016 01:54:56 +0000

This is a quick question, i’m considering moving from apache to nginx + phpfpm for performance reasons, however i’ve read that using both is better, you get nginx as static web server for the front and apache processing for the back end.

Is this true or should i just go with nginx + phpfpm

Wordfence uninstalled, still getting admin calls to wordfence_logHuman

AdamDobay — Sun, 06 Jul 2014 15:22:29 +0000

We are monitoring PHP calls to our site through FPM as we are getting occasional PHP overloads.

Every once in a while I see a request uri similar to this:
/wp-admin/admin-ajax.php?action=wordfence_logHuman&hid=08BAC5E3FF0166553DC21FE3D14E5A5E&r=0.2866429244168103

Now the thing is, it’s been a month since we’ve removed Wordfence, including its database entries and even manually removed the cron jobs it used to have.

What else could be making these calls?

Thanks,
Adam

memcache unix socket not working

hostingnuggets — Wed, 18 Jun 2014 15:15:31 +0000

I configured the plugin to use PHP memcache backend with “unix:///var/www/mywebsite.com/tmp/memcached.sock” as host but unfortunately it does not work. Here is the PHP error output:

2014/06/18 17:09:59 [error] 2003#0: *52986 FastCGI sent in stderr: "PHP message: PHP Warning: MemcachePool::getserverstatus() expects parameter 2 to be long, string given in /var/www/mywebsite.com/htdocs/wp-content/plugins/wp-ffpc/wp-ffpc-backend.php on line 921" while reading upstream, client: XXX.XXX.XXX.XXX, server: mywebsite.com, request: "GET /wp-admin/options-general.php?page=wp-ffpc-settings&saved=true HTTP/1.1", upstream: "fastcgi://unix:/var/lib/nginx/fastcgi/wptest.ch.sock:", host: "mywebsite.com", referrer: "https://mywebsite.com/wp-admin/options-general.php?page=wp-ffpc-settings&saved=true"

https://www.ads-software.com/plugins/wp-ffpc/

purge does not work when using PHP-FPM with another user

hostingnuggets — Wed, 18 Jun 2014 07:49:58 +0000

I am using nginx helper 1.8.1 along with fastcgi caching and I noticed that the purging does not work. The problem here is that I have one PHP-FPM pool per website using another user account each. My nginx runs as www-data and so the files created by FastCGI caching also belongs to www-data. This means that the nginx helper can not delete (unlink) the cache file because that PHP-FPM runs as another user. Do you have any work around for that or any solution?

Why not always use the /purge URL instead of unlinking files?

Here would be the PHP-FPM error message just in case:

2014/06/16 12:42:23 [error] 28902#0: *41796 FastCGI sent in stderr: "PHP message: PHP Warning: opendir(/var/run/nginx-cache/mywebsite.com/): failed to open dir: Permission denied in /var/www/mywebsite.com/htdocs/wp-content/plugins/nginx-helper/purger.php on line 686" while reading response header from upstream, client: XX.XX.XX.XX, server: www.mywebsite.com, request: "GET /wp-admin/post.php?post=482&action=edit&message=1&nginx_helper_action=purge&nginx_helper_urls=all&_wpnonce=a382bcef22 HTTP/1.1", upstream: "fastcgi://unix:/var/lib/nginx/fastcgi/mywebsite.com.sock:", host: "www.mywebsite.com", referrer: "https://www.mywebsite.com/wp-admin/post.php?post=482&action=edit&message=1"

https://www.ads-software.com/plugins/nginx-helper/

Apache 2.4 with Event MPM sample configuration

creyes123 — Wed, 21 May 2014 21:31:49 +0000

Apache 2.4 includes some neat new functionality that be used to run PHP websites like WordPress very efficiently. A generic configuration can be found on https://wiki.apache.org/httpd/PHP-FPM. But that is not quite enough to have a WordPress website running well. After some tinkering, I came up with the following:


  ServerName            domain.com
  ServerAlias           www.domain.com

  DocumentRoot          /srv/http/domain
  CustomLog             /var/log/apache2/domain_access.log common
  ErrorLog              /var/log/apache2/domain_error.log

  
    FallbackResource    index.php
    DirectoryIndex      index.php
    Options             Indexes FollowSymLinks
    AllowOverride       None
    Require             all granted
  

  ProxyPassMatch        ^/(.*\.php(/.*)?)$ fcgi://127.0.0.1:9000/srv/http/domain/$1

X-Forward-For problem in Apache PHP-FPM Varnish

GDef — Fri, 21 Feb 2014 08:25:49 +0000

Hi,

When php is used as FPM in Apache the X-Forwarded-For is not available via headers (varnish setup). There is no $headers[‘X-Forwarded-For’] (line 482 in inc/secure.php). Instead of there is variable _SERVER[“HTTP_X_FORWARDED_FOR”]. I suggest add another checking for it’s existence:

//Get the forwarded IP if it exists
if ( array_key_exists( ‘X-Forwarded-For’, $headers ) && ( filter_var( $headers[‘X-Forwarded-For’], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 ) || filter_var( $headers[‘X-Forwarded-For’], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6 ) ) ) {

$theIP = $headers[‘X-Forwarded-For’];

} else if ( array_key_exists( ‘HTTP_X_FORWARDED_FOR’, $_SERVER ) && ( filter_var( $_SERVER[‘HTTP_X_FORWARDED_FOR’], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 ) || filter_var( $_SERVER[‘HTTP_X_FORWARDED_FOR’], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6 ) ) ) {

$theIP = $_SERVER[‘HTTP_X_FORWARDED_FOR’];

} else {

$theIP = $_SERVER[‘REMOTE_ADDR’];

}

Best regards,

https://www.ads-software.com/plugins/better-wp-security/