Extension:ExternalRedirect

MediaWiki extensions manual

ExternalRedirect Release status: unmaintained
Implementation	Parser function
Description	Allows to make redirects to external websites
Author(s)	Dāvis Mošenkovs (DavisNTtalk)
Latest version	1.0.2 (2013-07-14)
MediaWiki	1.21+
Database changes	No
License	GNU General Public License 2.0 or later
Download	GitHub: project page git repository URL [help ] commit history Note: No localisation updates are provided by translatewiki.net .
Hooks used ParserFirstCallInit
Check usage and version matrix.

The ExternalRedirect extension allows to create redirects to external pages in wiki.

Use this extension only on write-protected wikis/namespaces! Abuse of this extension poses security risk.

Usage

A new parser function externalredirect with URL as first and only parameter is registered.

Place something like this on wiki page to make it redirect to external site:

{{#externalredirect: https://www.mediawiki.org}}

This allows, for example, to add external links to Categories (by placing pages with externalredirect in them).

Installation

• Download, extract and place the file(s) in a directory called ExternalRedirect in your extensions/ folder.
• Add the following code at the bottom of your LocalSettings.php:

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

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

Configuration

Populate this array with NUMERIC namespace IDs where external redirection should be allowed. Only allow on write-protected namespaces! See Manual:Namespace for more info on namespaces and numeric IDs. This example allows redirects from help pages (12) and pages from custom namespace with numeric ID 500.

$wgExternalRedirectNsIDs = array(
    12,
    500
);

Populate this array with page names (see magic word Extension:ExternalRedirect) where external redirection should be allowed. Only allow on write-protected pages! This example allows redirects from the wiki pages about Warren G. Harding and the Teapot Dome Scandal.

$wgExternalRedirectPages = array(
    'Teapot_Dome_scandal',
    'Warren_G._Harding'
);

Whether to display link to redirection URL (along with error message) in case externalredirect is used where it is not allowed.

$wgExternalRedirectDeniedShowURL = false;

Security

This extension is meant for usage only on write-protected wikis/namespaces/pages. Here is an example how to add a name space editable only by the sysops. In "LocalSettings.php":

define("NS_MOVED", 500);
$wgExtraNamespaces[NS_MOVED] = "Moved";
$wgNamespaceProtection[NS_MOVED]=array('redirector');
$wgNamespacesWithSubpages[NS_MOVED]=false;
$wgGroupPermissions['sysop']['redirector']=true;
require_once "$IP/extensions/ExternalRedirect/ExternalRedirect.php";
$wgExternalRedirectNsIDs = array( 500 );

With version 1.0.2 there is introduced basic URL validation (using wfParseUrl()) which prevents seriously malformed URLs, but still allows redirection to arbitrary sites.