User:Charlie Huggard/MediaWiki Hacks

As promised by my user page, this page will contains changes made to MediaWiki software on cirl.missouri.edu. Most of these changes were made for MediaWiki version 1.5.6 on a Gentoo machine. I did recently upgrade to 1.6.5 (with a tad bit of difficulty >_<). Unfortunately I did modify core code in some of these, so I may be downloading 1.7 and attempting modifications in a nicer way in the near future. All of these should be considered to be dirty dirty hacks. Let me know what you think on my talk pages!

Short URL

Before I saw the instructions at metawikipedia:Using a very short URL, I did the following to get rid of index.php URLs:

Hard Link - I created hard links from index.php and redirect.php to wiki and goto respectively.
.htaccess - To my .htaccess file I added the line:

 DefaultType application/x-httpd-php

LocalSettings.php - I changed the lines to look like this:

 $wgScript           = "$wgScriptPath/wiki";
 $wgRedirectScript   = "$wgScriptPath/goto";

Userpage Edit Restrictions

Version 1

I felt that users of the CIRL wiki should be the only ones who should be able to edit their User pages. I guess there are extensions now that do this, but when I was looking I didn't find one.

includes/DefaultSettings.php - I added the following lines

 $wgOnlyUserEditUserPage = false;
 $wgGroupPermissions['sysop']['editalluserpages'] = true;

I set the $wgOnlyUserEditUserPage to true in LocalSettings.php

includes/Title.php - I changed the following functions to read as shown

 function userCanEdit() {
      global $wgOnlyUserEditUserPage;
      if(NS_USER == $this->mNamespace && $wgOnlyUserEditUserPage) {
           global $wgUser;
           return ($wgUser->isAllowed('editalluserpages')|| $wgUser->getName()==$this->getText());
      } else {
           return $this->userCan('edit');
      }
 }

 function userCanMove() {
      global $wgOnlyUserEditUserPage;
      if(NS_USER == $this->mNamespace && $wgOnlyUserEditUserPage) {
           global $wgUser;
           return ($wgUser->isAllowed('editalluserpages')|| $wgUser->getName()==$this->getText());
      } else {
           return $this->userCan('move');
      }
 }

Version 2

When I upgraded to MediaWiki 1.6.5 I came up with a slightly better way.

LocalSettings.php - I added the following lines

 $wgOnlyUserEditUserPage = true;
 $wgGroupPermissions['sysop']['editalluserpages'] = true;

includes/Title.php - I added the following to the userCan function:

 # Protect User Pages from Editing
 global $wgOnlyUserEditUserPage;
 if( $wgOnlyUserEditUserPage
      && NS_USER == $this->mNamespace
      && !preg_match('/^'.preg_quote($wgUser->getName(), '/').'/', $this->mTextform)
      && !$wgUser->isAllowed('editalluserpages')
      && ( $action == 'move' || $action='edit' ) ) {
      wfProfileOut( $fname );
      return false;
 }

Custom Namespace Logos

If you notice on the cirl.missouri.edu site the User namespace has a different logo than the main namespace. (There is also a sandbox namespace that is only accessible to registered users that has a 3rd logo). To accomplish this I did the following:

includes/SkinTemplate.php - I changed the text function to the following

 function text( $str ) {
      global $wgTitle, $wgNamespaceLogos;
      if('logopath'==$str && isset($wgNamespaceLogos[$wgTitle->getNamespace()])) {
           echo htmlspecialchars( $wgNamespaceLogos[$wgTitle->getNamespace()] );
      } else {
           echo htmlspecialchars( $this->data[$str] );
      }
 }

LocalSettings.php - I added a new array mapping numeric namespace numbers to their non-default logos

 $wgNamespaceLogos = array (
      NS_SANDBOX => "$wgStylePath/common/images/wiki_sandbox.png",
      NS_SANDBOX_TALK => "$wgStylePath/common/images/wiki_sandbox.png",
      NS_USER => "$wgStylePath/common/images/wiki_user.png",
      NS_USER_TALK => "$wgStylePath/common/images/wiki_user.png",
 );

Calendar Enhancements

I used Cdamian's Calendar Extension for upcoming events. I did however got sick of Calendar pages showing up in the wanted pages so I changed the query in includes/SpecialWantedpages.php to

 "SELECT 'Wantedpages' AS type,
      pl_namespace AS namespace,
      pl_title AS title,
      COUNT(*) AS value
 FROM $pagelinks
 LEFT JOIN $page
 ON pl_namespace=page_namespace AND pl_title=page_title
 WHERE page_namespace IS NULL
 AND pl_title not like 'Calendar/%'
 GROUP BY pl_namespace,pl_title
 HAVING COUNT(*) > 1";