Extensión:CentralAuth

Ve la sección de configuración abajo para los prerrequisitos para usar CentralAuth. Entonces sigue estas instrucciones cuando estés listo(a) para activar CentralAuth:

1. Install Extension:AntiSpoof , since it is a required dependency.
2. #Descargue la última instantánea y extráela a tu directorio extensions.
3. #Elige una base de datos y crea las tablas de datos de CentralAuth. Puedes usar una base de datos existente o crear una nueva; la extensión por defecto usa una base de datos llamada $1 (ve $2 más abajo). (The extension by default uses the wiki's local database, which is convenient for automated testing but doesn't really make sense on a real wiki farm (as it will be different for every wiki, but the point of CentralAuth is sharing data between wikis) so you'll need to reconfigure that; see $wgVirtualDomainsMapping['virtual-centralauth'] below.) Usa esta base de datos y luego ejecuta tables-generated.sql.
   • Si usas Extension:AntiSpoof necesitarás crear una tabla spoofuser global (para bloquear nombres de usuarios que son similares a nombres de usuario existentes en cualquier wiki). Una forma de hacerlo es volcar la tabla spoofuser de la base de datos del wiki local e importarla a la nueva $wgVirtualDomainsMapping['virtual-centralauth'].
4. Añade wfLoadExtension( 'CentralAuth' ); a LocalSettings.php por cada uno de tus wikis, o en otro archivo PHP que esté incluido en LocalSettings.php en cada uno de tus wikis.
5. La extensión debería estar activa ahora.

Estos son ejemplos de comandos de shell y SQL para crear la base de datos centralauth, copia en ella la tabla spoofuser y migra a ella los datos de usuario existentes. Reemplaza $wgDBname y $wgDBuser con los valores de tu propia instalación wiki.

Crea la nueva base de datos (recuerda que este paso es opcional, puedes usar una de tus bases de datos existentes, en cuyo caso salte al paso de creación de tablas):

$ cd extensions/CentralAuth
$ mysql -u root -p
(enter password for root SQL user)

CREATE DATABASE centralauth;
USE centralauth;
GRANT all on centralauth.* to '$wgDBuser'@'localhost';
quit

Lo siguiente asume que tu directorio de trabajo actual es tu instalación MediaWiki (no tu directorio CentralAuth). Crea las tablas central auth (se prefiere usar $3.

php maintenance/run.php sql --wikidb centralauth extensions/CentralAuth/schema/<db_type>/tables-generated.sql

php maintenance/run.php sql --wikidb centralauth extensions/AntiSpoof/sql/<db_type>/tables-generated.sql

Ejecuta los scripts de migración de usuarios

$ php maintenance/run.php CentralAuth:migratePass0.php
$ php maintenance/run.php CentralAuth:migratePass1.php

CentralAuth is designed for large wiki farms who run database updates manually in order to enable zero-downtime upgrades. For that reason, the CentralAuth database will not be updated with the usual upgrade process. Third-party users are expected to follow CentralAuth development and apply database migrations manually instead.

Advertencia:

A central login wiki is required if you want to have a universal sign-on across different primary domains (i.e. if your wikis are not under subdomains of the same domain). Véase abajo para detalles.

First, you'll need to configure your wiki family using $wgConf , or CentralAuth can't be used for your wiki family. This includes setting $wgLocalDatabases and assigning it to $wgConf->wikis, and $wgConf->settings (minimum is $wgCanonicalServer , $wgServer and $wgArticlePath ). Follow the examples carefully. If you are creating a new wiki family, bear in mind that it may be easier if the databases for the wikis in each group have the same suffix (e.g. hypothetical databases enwiki, dewiki, frwiki, etc., pertaining to wikis belonging to the same group, all have the suffix "wiki").

After installing the extension, you have to gather some data in the CentralAuth database. In order to retroactively set up global accounts, you will have to run the migratePass0.php and migratePass1.php scripts. The first one stores information about your wikis in the CentralAuth database, while the second one uses automatic migration heuristics to generate global accounts. A user can merge their accounts manually via Special:MergeAccount. Dry runs can be used for testing purposes.

To enable global groups, you will have to make an entry into the global_group_permissions table in your CentralAuth database, with ggp_group='steward' and (for access to the group management interface) ggp_permission=globalgrouppermissions. A sample query that is recommended to use is:

INSERT INTO global_group_permissions (ggp_group,ggp_permission) VALUES ('steward','globalgrouppermissions'), ('steward','globalgroupmembership');

Then, promote some users into stewards:

INSERT IGNORE INTO global_user_groups (gug_user, gug_group) VALUES ((SELECT gu_id FROM globaluser WHERE gu_name='Admin'), 'steward');

There are various settings you may wish to modify (e.g. whether to provide single sign-on across a whole domain) listed in CentralAuth.php. In particular, you will want to set a value for $wgVirtualDomainsMapping['virtual-centralauth']. Make sure you put such settings after the wfLoadExtension line in LocalSettings.php, e.g.:

wfLoadExtension( 'CentralAuth' );
$wgVirtualDomainsMapping['virtual-centralauth'] = [ 'db' => 'centralauth' ];

Advertencia:

As all logged in users will have a session in the central login wiki, you are recommended to set up a new wiki with as few extensions installed as possible (not using an existing wiki for this purpose). This will reduce the risk for XSS vulnerabilities.

Advertencia:

Universal sign-on may be broken in newer Google Chrome versions due to SameSite cookie policy. To fix it, you need to add: $wgCookieSameSite = "None"; $wgUseSameSiteLegacyCookies = true; In addition, you must run your site under HTTPS.

In July 2013 WMF changed its approach to logging users into multiple wikis. When configured for this new approach, after successful login and account creation CentralAuth redirects to Special:CentralLogin/start?token=somevalue on a "central login wiki", which sets cookies on that wiki and then redirects back to the logged-into wiki. It omits the "login/account creation success" page, instead redirecting back to the "returnto" page that the user was originally on. It places 1x1 pixel images in the footer of that page, in place of the icons formerly used on the "login/account creation success" page.

The settings for this are, roughly,

# General CentralAuth configuration
$wgCentralAuthCookies = true;
// default is to use the local wiki database
$wgVirtualDomainsMapping['virtual-centralauth'] = [ 'db' => 'centralauthDatabaseName' ];
$wgCentralAuthAutoMigrate = true;
$wgCentralAuthAutoLoginWikis = [
    # Mapping from domain name to wiki id for other wikis to automatically login into
    'enwiki.mediawiki.mwdd.localhost' => 'enwiki',
];

# Activates the redirect to the "central login wiki"
$wgCentralAuthLoginWiki = 'WikiIdOfLoginWiki';

$wgCentralAuthLoginWiki is the ID (usually the database-name) of the wiki to which CentralAuth will redirect on login and create account actions.

For best results, it is recommended to use memcached or a more persistent cache. If you have only a single server, accelerator caches (CACHE_ACCEL) like APCu can also work, but do not use them if you have multiple servers. If you have no cache set up (i.e. CACHE_NONE) for $wgMainCacheType, or are using CACHE_DB, then you need to make sure all your wikis use the same caching table.

By default, each wiki in your wiki farm will use the objectcache table in its own database (with its own db prefix) when $wgMainCacheType is set to CACHE_NONE or CACHE_DB. To make this work with CentralAuth, we need to tell the wikis to use a central cache table.

CREATE TABLE centralauth.objectcache LIKE enwiki.objectcache

$wgSharedDB = 'centralauth'; // or whatever database you use for central data
$wgSharedTables = [ 'objectcache' ]; // remember to copy the table structure's to the central database first
$wgCentralAuthSessionCacheType = CACHE_DB; // Tell mediawiki to use objectcache database for central auth.

When running PHPUnit tests locally with your wiki farm and do not want them to fail due to an attempt to clone database tables with the shared tables config above, use:

if ( defined( 'MW_PHPUNIT_TEST' ) ) {
	$wgSharedTables = [];
} else {
	$wgSharedTables = [ 'objectcache' ];
}

Since 2023, CentralAuth does not support mixed-protocol HTTP/HTTPS wikis, only pure-HTTPS wikis (with $wgForceHTTPS set to true) and pure-HTTP wikis (primarily for local testing). See issue T348852.

Since MediaWiki 1.41, you can configure database virtual domains mapping for CentralAuth, and this replaced $wgCentralAuthDatabase. To setup virtual domains mapping with CentralAuth, use:

// 'centralauth' is the name of the your CentralAuth database.
$wgVirtualDomainsMapping['virtual-centralauth'] = [ 'db' => 'centralauth' ];

Allows for a single-user login (SUL) system using MediaWiki's AuthPlugin system. User creation and login is done globally using one central user table across all wikis. Note that local user accounts are automatically created on account creation/login however.

This extension also implements global user groups, to which global accounts can belong to.

CentralAuth defines several new user rights:

A user with an account on more than one wiki may use Special:MergeAccount to create their global user account, which can then be used on any wiki. Users with the centralauth-unmerge permission (given to stewards by default) can undo a merging of a global account, where the passwords are all reset back to the pre-merge setting. User accounts can now also be renamed globally.

 

A global account can be locked or hidden by a user with the centralauth-lock and centralauth-suppress permissions, respectively, given to the local group 'stewards' by default. A locked global account will be immediately logged out of any session on any wiki it is currently logged in to. A hidden global account's username is not visible in any logs except the global account log.

A wiki set is a group of wikis specified by a user with the globalgrouppermissions right. Sets can be opt-in (wikis are not in it by default) or opt-out (wikis are in it unless opted out).

Once you have enabled global user groups as described in the installation section, a migrated steward can use the Special:GlobalGroupPermissions interface to configure global user groups, and their rights. A global user group is active on all wikis (the users in it have its rights on all the wikis) by default, unless the group has been specified to only be active on a specific wiki set (the users in the group only have the rights if they are on a wiki in the set). Global group permissions are not listed at Special:ListUsers, but instead Special:GlobalUsers. They are assigned by a user with the globalgroupmembership permission (by default the global group stewards), and give the specified rights to the user even if the local rights defined by $wgGroupPermissions do not do so.

The extension is available under the GNU General Public License 2.0 or later, and can be downloaded from Git, or accessed via the web-based viewer.

The software is provided as-is. Updates will be made according to the needs of Wikimedia wikis; or where critical vulnerabilities are discovered.

• Help:Unified login on Meta-Wiki
• Extension:CentralAuth/authentication - CentralAuth authentication features
• $wgSharedDB
• User:Legoktm/evil-plans2.txt - 2015 plan to phase out CentralAuth at WMF
• Global session threat assessment
• Integrated watchlists
• CentralAuth control flow
• Stuck global renames