Extension:PatchOutput

MediaWiki extensions manual

PatchOutput Release status: stable
Implementation	Skin
Description	Patch the HTML representation of a page.
Author(s)	(RV1971talk)
Latest version	0.2.2 (2013-10-31)
MediaWiki	>=1.20
PHP	5.3+
License	GPL v3
Download	#Source #Change Log
Parameters $wgPatchOutputTable
Hooks used OutputPageBeforeHTML
Translate the PatchOutput extension if it is available at translatewiki.net
Check usage and version matrix.

Purpose

This extension applies some patches to the HTML code of a page before it is displayed. It can be seen as a demo for using the OutputPageBeforeHTML hook. You're likely to customize it for your needs.

The current version achieves the following:

• A link like mailto:test@example.org is shown as test@example.org (while the link behind is still a mailto: link).

Warnings

• The result is achieved via crude string search-and-replace on the html code. The search patterns are likely to be subject to change in future MediaWiki versions.

• As stated on OutputPageBeforeHTML#Warning , the hook may have bugs.

Installation

• Copy the #Source to a file PatchOutput/PatchOutput.php in your extensions/ folder.
• Add the following code at the bottom of your LocalSettings.php:

require_once "$IP/extensions/PatchOutput/PatchOutput.php";

•  Done – Navigate to "Special:Version" on your wiki to verify that the extension is successfully installed.

Even though this extension has been tested on MediaWiki 1.20, it should work on earlier versions as well.

Configuration

The search-and-replace patterns are stored in a global variable $wgPatchOutputTable. It contains an array where keys are the terms to search and values the corresponding replacements. You can redefine this array or add entries in your LocalSettings.php.

Source

<?php

if ( !defined( 'MEDIAWIKI' ) ) {
	echo( "This file is an extension to the MediaWiki software and cannot be used standalone.\n" );
	die( 1 );
}

$wgPatchOutputTable = array(
	/* do not show mailto: in mailto links */
	'">mailto:' => '">'
);

$wgExtensionCredits['skin'][] = array(
	'path' => __FILE__,
	'name' => 'PatchOutput',
	'description' => 'Allows to patch the HTML representation of a page.',
	'version' => '0.2.2',
	'author' => '[https://www.mediawiki.org/wiki/User:RV1971 RV1971]',
	'url' => 'https://www.mediawiki.org/wiki/Extension:PatchOutput'
);

$wgPatchOutput = new PatchOutput();

$wgHooks['OutputPageBeforeHTML'][] = $wgPatchOutput;

class PatchOutput
{
	public function onOutputPageBeforeHTML( OutputPage &$out, &$text ) {
		global $wgPatchOutputTable;

		$text = strtr( $text, $wgPatchOutputTable );

		return $out;
	}
}

Change Log

0.2.2 

• Use strtr, thus avoiding an explicit loop.

0.2.1 

• Removed the replacement pair used to open links in a new browser window. This is now achieved better with the configuration parameter $wgExternalLinkTarget.
• Removed the replacement pair used to translate "localhost" with the current server. It is better to use the magic word {{SERVERNAME}} instead.
• The code has been reviewed in order to comply better with the guidelines on mediawiki.org.

0.2 

• The configuration parameter now a class member.

0.1 

• First version published.

See also

• Manual:Hooks/OutputPageBeforeHTML
• Parser Phase 2 Extension