MediaWiki extensions manual

TrustedXFF Release status: stable
Description	Handling of trusted proxy addresses (XFF)
Author(s)	Tim Starlingtalk
Latest version	2.0.0
MediaWiki	>= 1.43
License	GNU General Public License 2.0 or later
Download	Download extension Git [?]: Download Git master browse repository (Phabricator · GitHub) commit history repository contributors (GitHub) code review
Example	mediawiki.org
Hooks used IsTrustedProxy
Quarterly downloads	4 (Ranked 125th)
Public wikis using	868 (Ranked 275th)
Translate the TrustedXFF extension if it is available at translatewiki.net
Issues	Open tasks · Report a bug

The TrustedXFF extension maintains a list of trusted hosts in a file in a PHP array format. For details, see meta:XFF project.

The file can be generated using the generate.php maintenance script.

• Download and move the extracted TrustedXFF folder to your extensions/ directory.
  Developers and code contributors should install the extension from Git instead, using:cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/TrustedXFF
• Add the following code at the bottom of your LocalSettings.php file:

  wfLoadExtension( 'TrustedXFF' );
  

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

• Useless where X-Forwarded-For is unavailable. As of 2019, many wikis force HTTPS for all things. Any manipulation with headers on a proxy compromises HTTPs server authentication unless the proxy possesses an SSL certificate authoritative for the wiki in question. It makes the extension far less useful nowadays than it was originally envisaged.

• Extension:CheckUser
• Manual:$wgApplyIpBlocksToXff
• $wgGlobalBlockingBlockXFF

This extension is being used on one or more Wikimedia projects. This probably means that the extension is stable and works well enough to be used by such high-traffic websites. Look for this extension's name in Wikimedia's CommonSettings.php and InitialiseSettings.php configuration files to see where it's installed. A full list of the extensions installed on a particular wiki can be seen on the wiki's Special:Version page.