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<?php
/**
* Represents the membership of a user to a user group.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\User;
use IContextSource;
use InvalidArgumentException;
use MediaWiki\MediaWikiServices;
use MediaWiki\Title\Title;
use Message;
use RequestContext;
/**
* Represents a "user group membership" -- a specific instance of a user belonging
* to a group. For example, the fact that user Mary belongs to the sysop group is a
* user group membership.
*
* The class is a pure value object. Use UserGroupManager to modify user group memberships.
*
* @since 1.29
*/
class UserGroupMembership {
/** @var int The ID of the user who belongs to the group */
private $userId;
/** @var string */
private $group;
/** @var string|null Timestamp of expiry in TS_MW format, or null if no expiry */
private $expiry;
/** @var bool Expiration flag */
private $expired;
/**
* @param int $userId The ID of the user who belongs to the group
* @param string|null $group The internal group name
* @param string|null $expiry Timestamp of expiry in TS_MW format, or null if no expiry
*/
public function __construct( int $userId = 0, ?string $group = null, ?string $expiry = null ) {
$this->userId = $userId;
$this->group = $group;
$this->expiry = $expiry ?: null;
$this->expired = $expiry && wfTimestampNow() > $expiry;
}
/**
* @return int
*/
public function getUserId() {
return $this->userId;
}
/**
* @return string
*/
public function getGroup() {
return $this->group;
}
/**
* @return string|null Timestamp of expiry in TS_MW format, or null if no expiry
*/
public function getExpiry() {
return $this->expiry;
}
/**
* Has the membership expired?
*
* @return bool
*/
public function isExpired() {
return $this->expired;
}
/**
* Gets a link for a user group, possibly including the expiry date if relevant.
*
* @deprecated since 1.41 use getLinkWiki or getLinkHTML directly
*
* @param string|UserGroupMembership $ugm Either a group name as a string, or
* a UserGroupMembership object
* @param IContextSource $context
* @param string $format Either 'wiki' or 'html'
* @param string|null $userName If you want to use the group member message
* ("administrator"), pass the name of the user who belongs to the group; it
* is used for GENDER of the group member message. If you instead want the
* group name message ("Administrators"), omit this parameter.
* @return string
*/
public static function getLink( $ugm, IContextSource $context, string $format, $userName = null ) {
switch ( $format ) {
case 'wiki':
return self::getLinkWiki( $ugm, $context, $userName );
case 'html':
return self::getLinkHTML( $ugm, $context, $userName );
default:
throw new InvalidArgumentException( 'UserGroupMembership::getLink() $format parameter should be ' .
"'wiki' or 'html'" );
}
}
/**
* Gets a link for a user group, possibly including the expiry date if relevant.
* @since 1.41
*
* @param string|UserGroupMembership $ugm Either a group name as a string, or
* a UserGroupMembership object
* @param IContextSource $context
* @param string|null $userName If you want to use the group member message
* ("administrator"), pass the name of the user who belongs to the group; it
* is used for GENDER of the group member message. If you instead want the
* group name message ("Administrators"), omit this parameter.
* @return string
*/
public static function getLinkHTML( $ugm, IContextSource $context, $userName = null ): string {
[
'expiry' => $expiry,
'linkTitle' => $linkTitle,
'groupName' => $groupName
] = self::getLinkInfo( $ugm, $context, $userName );
// link to the group description page, if it exists
$linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
if ( $linkTitle ) {
$groupLink = $linkRenderer->makeLink( $linkTitle, $groupName );
} else {
$groupLink = htmlspecialchars( $groupName );
}
if ( $expiry ) {
[
'expiryDT' => $expiryDT,
'expiryD' => $expiryD,
'expiryT' => $expiryT
] = self::getLinkExpiryParams( $context, $expiry );
$groupLink = Message::rawParam( $groupLink );
return $context->msg( 'group-membership-link-with-expiry' )
->params( $groupLink, $expiryDT, $expiryD, $expiryT )->escaped();
}
return $groupLink;
}
/**
* Gets a link for a user group, possibly including the expiry date if relevant.
* @since 1.41
*
* @param string|UserGroupMembership $ugm Either a group name as a string, or
* a UserGroupMembership object
* @param IContextSource $context
* @param string|null $userName If you want to use the group member message
* ("administrator"), pass the name of the user who belongs to the group; it
* is used for GENDER of the group member message. If you instead want the
* group name message ("Administrators"), omit this parameter.
* @return string
*/
public static function getLinkWiki( $ugm, IContextSource $context, $userName = null ): string {
[
'expiry' => $expiry,
'linkTitle' => $linkTitle,
'groupName' => $groupName
] = self::getLinkInfo( $ugm, $context, $userName );
// link to the group description page, if it exists
if ( $linkTitle ) {
$linkPage = $linkTitle->getFullText();
$groupLink = "[[$linkPage|$groupName]]";
} else {
$groupLink = $groupName;
}
if ( $expiry ) {
[
'expiryDT' => $expiryDT,
'expiryD' => $expiryD,
'expiryT' => $expiryT
] = self::getLinkExpiryParams( $context, $expiry );
return $context->msg( 'group-membership-link-with-expiry' )
->params( $groupLink, $expiryDT, $expiryD, $expiryT )->text();
}
return $groupLink;
}
/**
* @param self|string $ugm
* @param IContextSource $context
* @param string|null $userName
* @return array
*/
private static function getLinkInfo( $ugm, $context, $userName = null ): array {
if ( $ugm instanceof UserGroupMembership ) {
$expiry = $ugm->getExpiry();
$group = $ugm->getGroup();
} else {
$expiry = null;
$group = $ugm;
}
$uiLanguage = $context->getLanguage();
if ( $userName !== null ) {
$groupName = $uiLanguage->getGroupMemberName( $group, $userName );
} else {
$groupName = $uiLanguage->getGroupName( $group );
}
$linkTitle = self::getGroupPage( $group );
return [ 'expiry' => $expiry, 'linkTitle' => $linkTitle, 'groupName' => $groupName ];
}
/**
* @param IContextSource $context
* @param string $expiry
* @return array
*/
private static function getLinkExpiryParams( IContextSource $context, string $expiry ): array {
// format the expiry to a nice string
$uiLanguage = $context->getLanguage();
$uiUser = $context->getUser();
$expiryDT = $uiLanguage->userTimeAndDate( $expiry, $uiUser );
$expiryD = $uiLanguage->userDate( $expiry, $uiUser );
$expiryT = $uiLanguage->userTime( $expiry, $uiUser );
return [ 'expiryDT' => $expiryDT, 'expiryD' => $expiryD, 'expiryT' => $expiryT ];
}
/**
* Gets the localized friendly name for a group, if it exists. For example,
* "Administrators" or "Bureaucrats"
*
* @param string $group Internal group name
* @return string Localized friendly group name
* @deprecated since 1.38, use Language::getGroupName or Message::userGroupParams, hard-deprecated in 1.41
*/
public static function getGroupName( $group ) {
wfDeprecated( __METHOD__, '1.41' );
return RequestContext::getMain()->getLanguage()->getGroupName( $group );
}
/**
* Gets the localized name for a member of a group, if it exists. For example,
* "administrator" or "bureaucrat"
*
* @param string $group Internal group name
* @param string|UserIdentity $member Username or UserIdentity of member for gender
* @return string Localized name for group member
* @deprecated since 1.40, use Language::getGroupMemberName or
* Message::objectParm with instance of UserGroupMembershipParam, hard-deprecated in 1.41
*/
public static function getGroupMemberName( $group, $member ) {
wfDeprecated( __METHOD__, '1.41' );
return RequestContext::getMain()->getLanguage()->getGroupMemberName( $group, $member );
}
/**
* Gets the title of a page describing a particular user group. When the name
* of the group appears in the UI, it can link to this page.
*
* @param string $group Internal group name
* @return Title|false Title of the page if it exists, false otherwise
*/
public static function getGroupPage( $group ) {
$msg = wfMessage( "grouppage-$group" )->inContentLanguage();
if ( $msg->exists() ) {
$title = Title::newFromText( $msg->text() );
if ( is_object( $title ) ) {
return $title;
}
}
return false;
}
/**
* Compares two pure value objects
*
* @param UserGroupMembership $ugm
* @return bool
*
* @since 1.35
*/
public function equals( UserGroupMembership $ugm ) {
return (
$ugm->getUserId() === $this->userId
&& $ugm->getGroup() === $this->group
);
}
}
/**
* Retain the old class name for backwards compatibility.
* @deprecated since 1.41
*/
class_alias( UserGroupMembership::class, 'UserGroupMembership' );