Extension:LDAPAuthorization

This extension is part of the LDAP Stack and requires the LDAPProvider extension to be installed first.

This extension requires the PluggableAuth extension to be installed first.

This extensions checks for certain authorization requirements when logging into a wiki by using Extension:PluggableAuth or Extension:Auth remoteuser . If one of the requirements are not satisfied the login process will be cancelled.

MediaWiki extensions manual

LDAPAuthorization Release status: stable
Author(s)	Cindy Cicalese, Mark A. Hershberger, Robert Vogel
Latest version	1.0.0
Compatibility policy	Snapshots releases along with MediaWiki. Master is not backward compatible.
MediaWiki	1.31+
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
Parameters $wgAutoAuthUsernameNormalizer $wgAutoAuthRemoteUserStringParser $wgAutoAuthRemoteUserStringParserRegistry $wgAutoAuthBypassWithCookieUsernameRemoteAddrs
Hooks used AuthRemoteuserFilterUserName PluggableAuthUserAuthorization
Quarterly downloads	278 (Ranked 17th)
Translate the LDAPAuthorization extension if it is available at translatewiki.net

Installation

• Install the LDAPProvider and PluggableAuth extensions.
• Download and move the extracted LDAPAuthorization 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/LDAPAuthorization
• Add the following code at the bottom of your LocalSettings.php file:

  wfLoadExtension( 'LDAPAuthorization' );
  

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

Extension config settings

When using them in LocalSettings.php, these variables need to be prefixed with $LDAPAuthorization

Name	Default	Description
AutoAuthRemoteUserStringParserRegistry	{ "domain-backslash-username": "MediaWiki\\Extension\\LDAPAuthorization\\AutoAuth\\RemoteUserStringParser\\DomainBackslashUsername::factory", "username-at-domain": "MediaWiki\\Extension\\LDAPAuthorization\\AutoAuth\\RemoteUserStringParser\\UsernameAtDomain::factory" }	A registry of factory callbacks for different parsers, that extract domain and username from a provided domain-username. Must return IRemoteUserStringParser object. Only used in case of auto-authentication provided by Extension:Auth remoteuser .
AutoAuthRemoteUserStringParser	"domain-backslash-username"	Configures which parser is needed to extract domain and username from a provided domain-username. Allowed values are: "domain-backslash-username" (Use this if $_SERVER['REMOTE_USER'] = "SOMEDOMAIN\\Some username") "username-at-domain" (Use this if $_SERVER['REMOTE_USER'] = "some.username@somedomain.local") Only used in case of auto-authentication provided by Auth remoteuser.
AutoAuthUsernameNormalizer	""	A callback that allows to modify the username when Extension:Auth remoteuser is used for network based authentication. E.g. "strtolower". If form based authentication is also enabled though Extension:LDAPAuthentication2 this should have the same value as $LDAPAuthentication2UsernameNormalizer. Only used in case of auto-authentication provided by Extension:Auth remoteuser .

Domain config settings

Name	Default	Description
rules.groups.required	[]	Array of group DNs that are required to complete the login process. Belonging to one group is sufficient (logical OR) to be authorized.
rules.groups.excluded	[]	Array of group DNs that the user may not be member of to complete the login process. Belonging to one group is sufficient (logical OR) to be forbidden to log in.
rules.attributes	{}	This implements the "attributes mapping" rule from Extension:LDAP Authentication Example: { "&" : { "status": "active", "|": { "department": [ "100", "200" ], "level": [ "5", "6" ] } } }
rules.query	""	Allows to provide a standard LDAP query to be tested against the user. Comparable to $wgLDAPAuthAttribute from Extension:LDAP Authentication Example: &(active=TRUE)(permissionAlias=cn=X,ou=Y,ou=accounts,dc=company,dc=local)

Example 1

If you want to configure this in LocalSettings.php you can extend the configuration for LDAPProvider like in this example:

$LDAPProviderDomainConfigProvider = function() {
	$config = [
		'LDAP' => [
			'connection' => [
				...
			],
			'authorization' => [
				'rules' => [
					'groups' => [
						'required' => [ "groupname" ]
					]
				]
			]
		]
	];
...

Example 2

Here is a complete example LocalSettings.php configuration for Active Directory:

$LDAPProviderDomainConfigProvider = function()
{
	$config =
	[
		"example.com" =>
		[
			"connection" =>
			[
				"server" => "ldap.example.com",
				"user" => "cn=ldap,cn=Users,dc=example,dc=com",
				"pass" => "password",
				"basedn" => "dc=example,dc=com",
				"groupbasedn" => "dc=example,dc=com",
				"userbasedn" => "dc=example,dc=com",
				"searchattribute" => "samaccountname",
				"searchstring" => "USER-NAME@example.com",
				"usernameattribute" => "samaccountname",
				"realnameattribute" => "cn",
				"emailattribute" => "mail",
				"grouprequest" => "MediaWiki\\Extension\\LDAPProvider\\UserGroupsRequest\\GroupMember::factory"
			],
			"authorization" =>
			[
				"rules" =>
				[
					"groups" =>
					[
						"required" => [ "cn=Developers,cn=Users,dc=example,dc=com" ]
					]
				]
			],
			"groupsync" =>
			[
				"mechanism" => "mappedgroups",
				"mapping" =>
				[
					"sysop" => "cn=Developers,cn=Users,dc=example,dc=com",
					"bureaucrat" => "cn=Developers,cn=Users,dc=example,dc=com"
				]
			],
			"userinfo" =>
			[
				"email" => "mail",
				"realname" => "cn",
				"properties.gender" => "gender"
			]
		]
	];

	return new \MediaWiki\Extension\LDAPProvider\DomainConfigProvider\InlinePHPArray( $config );
};

Versioning

LDAP Stack Extensions are targeted/qualified for MediaWiki LTS releases only.
However, this table helps to determine which extension-releases to use across all recent versions.

MediaWiki Release	Recommended Extension Version	Test Status	Latest Test Date
1.35 (LTS)	LDAPxxx_master	Tested	March 2020