This page is a translated version of the page Extension:PluggableAuth and the translation is 16% complete.
This extension is maintained by a member of the MediaWiki Stakeholder-Gruppe .
Freigabestatus: stabil
Einbindung Benutzeridentität , Benutzerrechte , Hook
Beschreibung Provides framework for authentication and authorization extensions.
Autor(en) Cindy Cicalese (cindy.cicaleseDiskussion)
Letzte Version 7.0-dev (2023-02-08)
Kompatibilitätspolitik Snapshots werden zusammen mit MediaWiki veröffentlicht. Der Master ist nicht abwärtskompatibel.
MediaWiki >= 1.35.0
Composer mediawiki/pluggable-auth
Lizenz MIT-Lizenz
  • $wgPluggableAuth_EnableFastLogout
  • $wgPluggableAuth_EnableLocalLogin
  • $wgPluggableAuth_EnableLocalProperties
  • $wgPluggableAuth_EnableAutoLogin
  • $wgPluggableAuth_Config
Quarterly downloads 2,202 (Ranked 2nd)
Übersetze die PluggableAuth-Erweiterung, wenn sie auf verfügbar ist
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The PluggableAuth extension provides a framework for creating authentication and authorization extensions.

Authentication is the process of proving that a user is who they say they are. This may be done, for example, by providing a username and password or some token or biometric.

The following authentication extensions can be used with PluggableAuth:

Authorization is the process of determining whether a particular authenticated user should have access to a particular resource. This may be done, for example, by checking a list of authorized email addresses or checking values of user attributes provided by an identity server.

In PluggableAuth's case, authorization extensions determine if an authenticated user may proceed with logging in to a wiki. However, the authentication extensions (rather than the authorization extensions) take care of which user groups a user should be authorized for, based on the attributes passed from the identity provider (IdP).

The following authorization extensions can be used with PluggableAuth:

PluggableAuth must be used with one or more authentication plugins and zero or more authorization plugins. If more than one authentication plugin is used, a button for each authentication plugin will be added to the Special:UserLogin page. If a single authentication plugin is used and local login is disabled, the Special:UserLogin page will be bypassed. If no authorization plugins are used, all authenticated users will be authorized to use the wiki.

PluggableAuth defines two important hooks:


  • Die Erweiterung herunterladen und die Datei(en) in ein Verzeichnis namens PluggableAuth im Ordner extensions/ ablegen.
  • Folgenden Code am Ende der LocalSettings.php einfügen:
    wfLoadExtension( 'PluggableAuth' );
  • The createaccount or autocreateaccount user rights must be granted to all users. See User rights.
  • Konfiguriere nach Bedarf
  •   Erledigt – Zu Special:Version in dem Wiki (bei Einstellung auf deutsch nach Spezial:Version) navigieren, um die erfolgreiche Installierung der Erweiterung zu überprüfen.
One or more authentication plugins and zero or more authorization plugins must be installed as well.
Version 6.0 of PluggableAuth is a significant upgrade. The configuration variable $wgPluggableAuth_Config is required in version 6.0. The plugins must be compatible with the version of PluggableAuth installed.
Compatibility Matrix
Plugin PluggableAuth version 6.0 or later PluggableAuth version 5.7 or earlier
DiscourseSsoConsumer - 2.0.0
LDAPAuthentication2 - 1.0.1
NaylorAMS - 0.1.0
OpenID Connect 6.0 5.4
PHPBB Auth 4.1.0 4.0.0
Shibboleth - v1.0.0-rc.1
SimpleSAMLphp 5.0.0 4.5.2
WSOAuth 6.0 5.0
EmailAuthorization 3.0 2.0
LDAPAuthorization - 1.0.0


All versions

Flag Standard Beschreibung
$wgPluggableAuth_EnableAutoLogin false Should login occur automatically when a user visits the wiki?
$wgPluggableAuth_EnableLocalLogin false Should user also be presented with username/password fields on the login page to allow local password-based login to the wiki?
$wgPluggableAuth_EnableLocalProperties false If true, users can edit their email address and real name on the wiki. If false, the default, they cannot do so. Note that, if you rely on email address and/or real name returned from the authentication provider in any way, you should leave this setting at its default value.

After the call to authenticate(), PluggableAuth checks to see if the real name or email address returned are different from those saved in the wiki database. If either is different, it checks to see if this setting is true. If so, this is understood by PluggableAuth to indicate that the real name and email address are managed in the wiki on the Special:Preferences page. Otherwise, the real name and email address are managed by the authentication provider, so the new real name and email address values are saved to the wiki database. That is, if this setting is false, any changes to the real name or email address at the remote authentication provider will overwrite the local values when the user logs in.

Version 6.0 or later

Flag Standard Beschreibung
$wgPluggableAuth_Config kein Standardwert An array of arrays containing configuration for the authentication plugins. The keys to the outer array are used as the button labels on Special:UserLogin if no button message is provided in the respective inner array. The valid keys to the inner arrays are:
  • plugin (required) — The name of the authentication plugin
  • buttonLabelMessage (optional) — The system message (e.g. (MediaWiki:)SSOButtonLabel) to be used for the label for the button on Special:UserLogin
  • dataA configuration array to be passed to the authentication plugin. The contents depend upon the authentication plugin. Depending upon the authentication plugin, this may be optional or required.

Version 5.7 or earlier

Flag Standard Beschreibung
$wgPluggableAuth_ButtonLabelMessage kein Standardwert If set, the name of a message that will be used for the label of the login button on the Special:UserLogin form. This is useful if an authentication plugin will be showing the Special:UserLogin form to the user and needs to customize the button label with a localizable Message. If not set and if no value is set for $wgPluggableAuth_ButtonLabelMessage, the value of the pluggableauth-loginbutton-label message, which has a default value of "Log in with PluggableAuth" will be used. To override this value you can edit the page MediaWiki:Pluggableauth-loginbutton-label and its language variants. This configuration variable is usually set, if at all, by authentication plugins and not by wiki site administrators. If set by a wiki site administrator, the relevant message pages in the MediaWiki namespace will need to be created with the localized message values.
$wgPluggableAuth_ButtonLabel null If $wgPluggableAuth_ButtonLabelMessage is not set and $wgPluggableAuth_ButtonLabel is set to a string value, this string value will be used as the label of the login button on the Special:UserLogin form. This allows a wiki site administrator to set the label if a localizable Message is not provided by an authentication plugin. Note that this string is NOT localizable.
$wgPluggableAuth_ExtraLoginFields [] An array of extra fields to be added to the login form at Special:UserLogin. See the documentation for AuthenticationRequest:getFieldInfo() for the format of the array. This configuration variable may be set by authentication plugins and should not be set by wiki site administrators.
$wgPluggableAuth_Class kein Standardwert The name of a class that extends the abstract PluggableAuth class to provide authentication. This configuration variable must be set by authentication plugins and should not be set by wiki site administrators.

Developer notes

Creating an authentication plugin

Version 6.0 and later:

  • Authentication plugins subclass the abstract MediaWiki\Extension\PluggableAuth\PluggableAuth class provided by PluggableAuth.
  • In version 6.0 and later, an authentication plugin must specify at attributes section in extension.json. For example:
"attributes": {
   "PluggableAuth": {
      "OpenIDConnect": {
         "class": "MediaWiki\\Extension\\OpenIDConnect\\OpenIDConnect",
         "services": [

Version 5.7 and earlier:

  • Authentication plugins subclass the abstract PluggableAuth class provided by PluggableAuth.
  • An authentication plugin must set $PluggableAuth_Class to the name of this subclass.

The authentication plugin subclass must implement the following methods:

public function authenticate( ?int &$id, ?string &$username, ?string &$realname, ?string &$email, ?string &$errorMessage ): bool;

  • Called to authenticate the user.
  • The parameters are used to return the user id, username, real name, and email address of the authenticated user and, if the user cannot be authenticated, an optional error message. $id is an integer and the remaining parameters are all strings. If the user cannot be authenticated and no value is set for $errorMessage, a default error message is displayed.
  • $id must be set to null if the user is new, in which case PluggableAuth will add the user to the database.
  • Must return true if the user has been authenticated and false otherwise.
  • If the return to URL, the name of the page, or the query parameters from the page that login was initiated from are necessary in the authenticate() function, they may be accessed as follows:
$returnToUrl = $this->authManager->getAuthenticationSessionData(
$returnToPage = $this->authManager->getAuthenticationSessionData(
$returnToQuery = $this->authManager->getAuthenticationSessionData(

public function saveExtraAttributes( int $id ): void

  • Called after a new user has been authenticated and added to the database to add any additional information to the database required by the authentication mechanism.

public function deauthenticate( UserIdentity &$user ): void

  • Called when the user logs out to notify the identity provider, if necessary, that cleanup such as removing the user's session should be done.

Special:UserLogin and extra login fields

The Special:UserLogin page will only be displayed to the user during authentication if user interaction is required.

That is, if there is only a single configured authentication provider, its authentication plugin does not add extra fields to the Special:UserLogin form using the PluggableAuth::getExtraLoginFields() static function (or $wgPluggableAuth_ExtraLoginFields in version 5.7 or earlier), and local login (which enables the username and password fields on the Special:UserLogin form) is not enabled by a site administrator using $wgPluggablAuth_EnableLocalLogin, the Special:UserLogin page will not be displayed.

Even if Special:UserLogin is not displayed, it may be necessary for an authentication plugin to gather user input using a web page provided by an enterprise authentication system. This would be accomplished by a redirect, often from within the authentication library used by the authentication plugin.

If no such library exists and you need to implement the authentication mechanism from scratch, the redirect should not go to Special:UserLogin. Instead, it should go to a custom, unlisted special page based on PluggableAuthLogin.php. Finally, if there is no user input required by the user as part of authentication from either Special:UserLogin or the remote authentication system, clicking on the Log in link will simply re-render the current page in a logged in state.

If an authentication plugin adds extra fields to the Special:UserLogin form using the PluggableAuth::getExtraLoginFields() static function (or $wgPluggableAuth_ExtraLoginFields in version 5.7 or earlier), the fields can be accessed in the authenticate() function in an authentication plugin as follows:

$authManager = MediaWikiServices::getInstance()->getAuthManager();
$extraLoginFields = $authManager->getAuthenticationSessionData(

This will return an array of field values indexed by the name of the field from the field descriptor array.

Creating an authorization plugin

Authorization hooks use the PluggableAuthUserAuthorization hook to register an implementation of the following function:

function authorize( UserIdentity $user, bool &$authorized ): void

  • $user is the UserIdentity object for the user requesting authorization
  • $authorized must be set to true if the user is authorized and false otherwise.


Version 6.3
  • Fixed MW 1.35 incompatibility in deauthenticate
Version 6.2
  • added compatibility with MW 1.39
    • Switch from deprecated PersonalUrls hook to SkinTemplateNavigation::Universal
  • Only set real name if it is not null
  • Use setter and getter for user's real name
Version 6.1
  • restored backward compatibility with MW 1.35 (T308865)
Version 6.0
  • Support multiple authentication plugins using $wgPluggableAuth_Config
  • Benötigt MediaWiki 1.35+
  • Drop support for the following configuration variables:
    • $wgPluggableAuth_ButtonLabelMessage (use the buttonLabelMessage field in the corresponding $wgPluggableAuth_Config entry)
    • $wgPluggableAuth_ButtonLabel (use the index of the corresponding $wgPluggableAuth_Config entry)
    • $wgPluggableAuth_ExtraLoginFields (use static function in PluggableAuth class)
    • $wgPluggableAuth_Class (now specified by an attribute in the authentication plugin's extension.json and referred to by the plugin field in the corresponding $wgPluggableAuth_Config entry)
Version 5.7
  • Added error message when there is a rare fatal session error
Version 5.6
  • Fixed autologin so it returns to the correct page after authentication.
Version 5.5
  • Fixed issue with PluggableAuthPopulateGroups hook.
Version 5.4
  • Added $wgPluggableAuth_ButtonLabelMessage and $wgPluggableAuth_ButtonLabel.
  • Coding style fixes.
Version 5.3
  • Added $wgPluggableAuth_ExtraLoginFields.
Version 5.2
  • Converted auto login to PHP from JavaScript.
Version 5.1
  • Added PluggableAuthPopulateGroups hook. Thank you to Poikilotherm for contributing this functionality.
Version 5.0
  • Added $wgPluggableAuth_EnableLocalProperties and removed use of editmyprivateinfo
  • Added debug statement when returntourl is not set
Version 4.2
  • Fixed exception when returntoquery is undefined.
Version 4.1
  • Added session variables to hold the name of the page and the query parameters of the page from which login was initiated for use in authenticate()
Version 4.0
  • Added optional error message to authenticate()
  • Bumped version number to synchronize with SimpleSAMLphp and OpenIDConnect extensions
Version 2.2
  • Confirm email addresses coming from external authentication sources
Version 2.1
  • Update file naming conventions
Version 2.0
  • Almost completely rewritten to support the new MediaWiki 1.27 authentication and session management framework
  • Switched to new extension registration
  • Configuration variable names changed to add $wg prefix
  • $PluggableAuth_Timeout entfernt
  • $PluggableAuth_AutoLogin umbenannt in $wgPluggableAuth_EnableAutoLogin
  • $wgPluggableAuth_EnableLocalLogin added to support local password-based login to the wiki in addition to PluggableAuth
Version 1.2
  • Moved the addition of a new user to the wiki database to after successful authorization of the user
  • Added editmyprivateinfo check
Version 1.1
  • Added call to logout when session times out to ensure that the deauthenticate function in implementing classes gets called
Version 1.0
  • Initial version