User talk:Barrylb/Usercan Hook

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[edit] isSysop() is deprecated

As much as I would love to use the original userCan hook, anything I try to use with isSysop() results in the rather pretty chunk of errors to be spewed upon my screen:

MediaWiki internal error.

Original exception: exception 'MWException' with message 'Call to deprecated (v1.7) User::isSysop() method
' in C:\Apache22\htdocs\sandbox\includes\User.php:1206
Stack trace:
#0 C:\Apache22\htdocs\sandbox\LocalSettings.php(152): User->isSysop()
#1 [internal function]: fnMyUserCan(Object(Title), Object(User), 'edit', NULL)
#2 C:\Apache22\htdocs\sandbox\includes\Hooks.php(114): call_user_func_array('fnMyUserCan', Array)
#3 C:\Apache22\htdocs\sandbox\includes\Title.php(1023): wfRunHooks('userCan', Array)
#4 C:\Apache22\htdocs\sandbox\includes\Title.php(1092): Title->userCan('edit')
#5 C:\Apache22\htdocs\sandbox\includes\ParserCache.php(38): Title->userCanEdit()
#6 C:\Apache22\htdocs\sandbox\includes\ParserCache.php(51): ParserCache->getKey(Object(Article), Object(User))
#7 C:\Apache22\htdocs\sandbox\includes\Article.php(671): ParserCache->getETag(Object(Article), Object(User))
#8 C:\Apache22\htdocs\sandbox\includes\Wiki.php(327): Article->view()
#9 C:\Apache22\htdocs\sandbox\includes\Wiki.php(50): MediaWiki->performAction(Object(OutputPage), Object(Article), Object(Title), Object(User), Object(WebRequest))
#10 C:\Apache22\htdocs\sandbox\index.php(123): MediaWiki->initialize(Object(Title), Object(OutputPage), Object(User), Object(WebRequest))
#11 {main}

So I can't use that.

I'm trying to accomplish several things here.

1. Anonymous users should not be able to edit any page at all
   • Easily accomplished through $wgGroupPermissions['*']['edit'] = false;
2. Logged in users cannot edit articles, but can edit Talk pages
3. Sysops rights should remain untouched

I managed to accomplish what I set out to do with the following code.

function fnMyUserCan($title, $wgUser, $action, $result) 
{
        if ($action == 'edit')
        {
                if (!$title->isTalkPage() && !in_array("sysop", $wgUser->mGroups))
                        $result = false;
        }
}

$wgHooks['userCan'][] = 'fnMyUserCan'; //disable editing of everything but Talk pages for logged in users

Johann 18:30, 2 November 2006 (UTC)

Thanks for your notes, Barrylb. I found these helpful in developing my own userCan extension at work. Richardkmiller 01:33, 20 March 2008 (UTC)

[edit] Internal error

I get the following error when I try to use this. It looks like it got crufty and doesn't work anymore. =( Sy Ali 19:25, 12 May 2008 (UTC)

---

Internal error

Detected bug in an extension! Hook fnMyUserCan failed to return a value; should return true to continue hook processing or false to abort.

Backtrace:

#0 /var/www/vhosts/jrandomhacker.info/httpdocs/includes/Title.php(1264): wfRunHooks()
#1 /var/www/vhosts/jrandomhacker.info/httpdocs/includes/Wiki.php(133): Title->userCanRead('userCan', Array)
#2 /var/www/vhosts/jrandomhacker.info/httpdocs/includes/Wiki.php(43): MediaWiki->preliminaryChecks()
#3 /var/www/vhosts/jrandomhacker.info/httpdocs/index.php(89): MediaWiki->initialize(Object(Title), Object(StubObject), Object(WebRequest))
#4 {main}