OSIFY

WPMU Be careful with Mod_Rewrite

osify

As stated previously on StackOverflow about osify got stuck because of can’t add new post or upload new media file after I have configured osify to be a multi-site by using WordPress Multisite.

I got following error:

  1. Can’t add new post and got message: Are you sure you want to do this? Please try again
  2. Can’t upload any media file, it stucked at “Crunching…”, image was in the folder if checked in FTP and permission of folder (755), files (644) are right but image can’t load on the screen of the media or via post

I spent around 2 weeks to search on the net about this issue but got no result after all tries.

Now it has been solved, thanks to Ipstenu on StackOverflow who spotted the right issue on Mod_Rewrite of apache that caused the issue.

On my .htaccess, I removed:

#uploaded files
RewriteRule ^(.*/)?files/$ index.php [L]
RewriteCond %{REQUEST_URI} !.*wp-content/plugins.*
RewriteRule ^(.*/)?files/(.*) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteCond %{REQUEST_URI} ^.*/wp-admin$
RewriteRule ^(.+)$ $1/ [R=301,L]

And according to the codex of wordpress for WPMU with subdomain, I should place in .htaccess as:

# BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^files/(.+) wp-includes/ms-files.php?file=$1 [L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule . index.php [L]
# END WordPress

UPDATED: 11/04

I got error again after last night fix but when I put in my wp-config.php the debug mode:

define( ‘WP_DEBUG’, true );

I could see there are some errors with DB.

And since, my site is not put on the root of the server (view by FTP), I added another rewrite rule to be able to see image after upload:

RewriteRule ^([_0-9a-zA-Z-]+/)?siteN/files/(.+) wp-content/blogs.dir/N/files/$2 [L]

Note: siteN = Site Number, N = Site Number as well. In my case, I put my main site: so siteN or N = 1

 

(Ref: Issues with old WPMU installs in wordpress codex)

My final .htaccess:

# BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^files/(.+) wp-includes/ms-files.php?file=$1 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?1/files/(.+) wp-content/blogs.dir/1/files/$2 [L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule . index.php [L]
# END WordPress

UPDATED: 15/05

Occasionally, I met this issue again that led me to recheck on the issue of db error:

Finally I got an answer because of the Mysql innodb issue at my hosting, thanks to this post

I solved with this change:

innodb_data_file_path = ibdata1:10M:autoextend:max:512M

Hope it won’t happen again but I will keep update the info if any more issue found.