[SchmitzIT] XenForo MediaWiki Bridge 2.0

Cala_Marie · Mar 31, 2014

I've run into an odd issue with MediaWiki 1.22.5, xF 1.3.0, and PHP 5.4.23. Everything seems to function correctly (editing, accounts, etc.), but this appears at the bottom of every page on my wiki:

Code:

Unexpected non-MediaWiki exception encountered, of type "ErrorException"

Enabling some debugging options in LocalSettings.php results in something a bit more helpful, although I don't know where to start:

Code:

Unexpected non-MediaWiki exception encountered, of type "ErrorException"
[f07ff065] /wiki/Main_Page Exception from line 2807 of /home/REMOVED/public_html/wiki/includes/GlobalFunctions.php: passthru(): Unable to fork [/bin/bash '/home/REMOVED/public_html/wiki/includes/limit.sh' ''\''/usr/bin/php'\'' '\''/home/REMOVED/public_html/wiki/maintenance/runJobs.php'\'' '\''--maxjobs'\'' '\''1'\'' &gt;/dev/null 2&gt;&amp;1 &amp;' 'MW_INCLUDE_STDERR=;MW_CPU_LIMIT=180; MW_CGROUP='\'''\''; MW_MEM_LIMIT=307200; MW_FILE_SIZE_LIMIT=102400; MW_WALL_CLOCK_LIMIT=180']
Backtrace:
#0 [internal function]: XenForo_Application::handlePhpError(integer, string, string, integer, array)
#1 /home/REMOVED/public_html/wiki/includes/GlobalFunctions.php(2807): passthru(string, integer)
#2 /home/REMOVED/public_html/wiki/includes/Wiki.php(668): wfShellExec(string, integer)
#3 /home/REMOVED/public_html/wiki/includes/Wiki.php(622): MediaWiki->doJobs()
#4 /home/REMOVED/public_html/wiki/includes/Wiki.php(468): MediaWiki->restInPeace()
#5 /home/REMOVED/public_html/wiki/index.php(49): MediaWiki->run()
#6 {main}

Any assistance with this would be appreciated.

Dinosaur · Apr 12, 2014

I just wanted to say thanks for releasing this!

I've gotten this to work with our mediawiki version (1.22.5) which also has the blue-spice extension added to it.

PatPeter · Jul 19, 2014

Will this work if my wiki is on a different subdomain than my forums? This is what my setup looks like:

http://www.unigamia.com/
http://wiki.unigamia.com/wiki/Main_Page

Also, will enabling cached sessions in XenForo break this?

$config['cache']['cacheSessions'] = true;

I don't have them enabled right now, but I might enable them later.

Dinosaur · Jul 19, 2014

@PatPeter
Yup, it should work. My own site is setup like blah.com/forums and blah.com/wiki & the bridge works perfectly with it.

I'm not sure about the caching though.

PatPeter · Jul 20, 2014

@Dinosaur But example.com/wiki is far different than wiki.example.com. Subdomains change how cookies are handled.

Dinosaur · Jul 20, 2014

PatPeter said:
@Dinosaur But example.com/wiki is far different than wiki.example.com. Subdomains change how cookies are handled.

It also worked when we used to use forums.blah.com and blah.com/wiki (though we got rid of the forum subdomain later). So it does work across different subdomains on the same domain.

PatPeter · Jul 21, 2014

@Dinosaur Well then I have no idea why it's not working for me, or how to debug it. When I enable it on the wiki, it successfully disables login/registration on the wiki. However, when I log into the forums, it does not log me into the wiki.

I haven't checked into the inner workings of this bridge. Does it create users with the same username as the forums? If so, would it automatically bridge my forum account with my existing wiki account?

NeoCHI · Aug 23, 2014

@xfrocks

All of a sudden all of my wiki pages only show:

Unexpected non-MediaWiki exception encountered, of type "ErrorException"

I have the following two errors in my server error logs though:

Error Info

Code:

ErrorException: DB transaction callbacks still pending (from User::invalidateCache, Title::invalidateCache). - wiki_media/includes/db/Database.php:3953

Stack Trace

Code:

#0 [internal function]: XenForo_Application::handlePhpError(1024, 'DB transaction ...', '/home/neochi/pu...', 3953, Array)
#1 /home/neochi/public_html/wiki_media/includes/db/Database.php(3953): trigger_error('DB transaction ...')
#2 [internal function]: DatabaseBase->__destruct()
#3 {main}

Request State

Code:

array(3) {
["url"] => string(60) "http://mysite.com/wiki/Brave_Frontier_Wiki/Spheres_List"
["_GET"] => array(1) {
["title"] => string(32) "Brave_Frontier_Wiki/Spheres_List"
}
["_POST"] => array(0) {
}
}

Error Info

Code:

ErrorException: Uncommitted DB writes (transaction from DatabaseBase::query (WikiPage::pageData)). - wiki_media/includes/db/Database.php:3944
Generated By: mulder, 20 minutes ago

Stack Trace

Code:

#0 [internal function]: XenForo_Application::handlePhpError(1024, 'Uncommitted DB ...', '/home/neochi/pu...', 3944, Array)
#1 /home/neochi/public_html/wiki_media/includes/db/Database.php(3944): trigger_error('Uncommitted DB ...')
#2 [internal function]: DatabaseBase->__destruct()
#3 {main}

Request State

Code:

array(3) {
["url"] => string(60) "http://appinvasion.com/wiki/Brave_Frontier_Wiki/Spheres_List"
["_GET"] => array(1) {
["title"] => string(32) "Brave_Frontier_Wiki/Spheres_List"
}
["_POST"] => array(0) {
}
}

I did migrate servers recently. Not sure if that's related.

xfrocks · Aug 24, 2014

NeoCHI said:

@xfrocks

All of a sudden all of my wiki pages only show:

Unexpected non-MediaWiki exception encountered, of type "ErrorException"

I have the following two errors in my server error logs though:

Error Info

Code:

ErrorException: DB transaction callbacks still pending (from User::invalidateCache, Title::invalidateCache). - wiki_media/includes/db/Database.php:3953

Stack Trace

Code:

#0 [internal function]: XenForo_Application::handlePhpError(1024, 'DB transaction ...', '/home/neochi/pu...', 3953, Array)
#1 /home/neochi/public_html/wiki_media/includes/db/Database.php(3953): trigger_error('DB transaction ...')
#2 [internal function]: DatabaseBase->__destruct()
#3 {main}

Request State

Code:

array(3) {
["url"] => string(60) "http://mysite.com/wiki/Brave_Frontier_Wiki/Spheres_List"
["_GET"] => array(1) {
["title"] => string(32) "Brave_Frontier_Wiki/Spheres_List"
}
["_POST"] => array(0) {
}
}

Error Info

Code:

ErrorException: Uncommitted DB writes (transaction from DatabaseBase::query (WikiPage::pageData)). - wiki_media/includes/db/Database.php:3944
Generated By: mulder, 20 minutes ago

Stack Trace

Code:

#0 [internal function]: XenForo_Application::handlePhpError(1024, 'Uncommitted DB ...', '/home/neochi/pu...', 3944, Array)
#1 /home/neochi/public_html/wiki_media/includes/db/Database.php(3944): trigger_error('Uncommitted DB ...')
#2 [internal function]: DatabaseBase->__destruct()
#3 {main}

Request State

Code:

array(3) {
["url"] => string(60) "http://appinvasion.com/wiki/Brave_Frontier_Wiki/Spheres_List"
["_GET"] => array(1) {
["title"] => string(32) "Brave_Frontier_Wiki/Spheres_List"
}
["_POST"] => array(0) {
}
}

I did migrate servers recently. Not sure if that's related.

Did you upgrade MediaWiki? Server changes should not cause this kind of issues.

NeoCHI · Aug 24, 2014

xfrocks said:
Did you upgrade MediaWiki? Server changes should not cause this kind of issues.

No I didn't.

NeoCHI · Aug 25, 2014

xfrocks said:
Did you upgrade MediaWiki? Server changes should not cause this kind of issues.

Please really need some help here. My whole wiki is down.

NeoCHI · Aug 28, 2014

xfrocks said:
Did you upgrade MediaWiki? Server changes should not cause this kind of issues.

Wow...ok so apparently my new server has softaculous installed and that upgraded my mediawiki to 1.23.3 automatically. Sigh.

So is the bridge not compatible with the new mediawiki or is there an easy fix?

xfrocks · Aug 29, 2014

NeoCHI said:
Wow...ok so apparently my new server has softaculous installed and that upgraded my mediawiki to 1.23.3 automatically. Sigh.

So is the bridge not compatible with the new mediawiki or is there an easy fix?

I'm testing 1.23.3 right now.

NeoCHI · Aug 29, 2014

xfrocks said:
I'm testing 1.23.3 right now.

Looks like this was an issue with my server. Fixed!

MattW · Aug 29, 2014

NeoCHI said:
Looks like this was an issue with my server. Fixed!

What was the problem?

NeoCHI · Aug 30, 2014

MattW said:
What was the problem?

It was a incompatibility issue with PCRE 8.34

Fix was: https://gerrit.wikimedia.org/r/#/c/122450/1

PatPeter · Sep 7, 2014

Is there any way to debug why this?

hellreturn · Sep 29, 2014

@SchmitzIT Is there anyway to update this for latest release of XF?

Thanks

PatPeter · Oct 8, 2014

So it turns out that yes, if you have your forums and wiki on two different subdomains, you cannot use this bridge, i.e. forums.example.com and wiki.example.com.

SchmitzIT · Oct 9, 2014

PatPeter said:
So it turns out that yes, if you have your forums and wiki on two different subdomains, you cannot use this bridge, i.e. forums.example.com and wiki.example.com.

Yeah, we tried that as well, and ended up giving up

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