includes/specials/SpecialListgrouprights.php

   1 <?php
   2 /**
   3  * Implements Special:Listgrouprights
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * This special page lists all defined user groups and the associated rights.
  26  * See also @ref $wgGroupPermissions.
  27  *
  28  * @ingroup SpecialPage
  29  * @author Petr Kadlec <mormegil@centrum.cz>
  30  */
  31 class SpecialListGroupRights extends SpecialPage {
  32
  33         /**
  34          * Constructor
  35          */
  36         function __construct() {
  37                 parent::__construct( 'Listgrouprights' );
  38         }
  39
  40         /**
  41          * Show the special page
  42          */
  43         public function execute( $par ) {
  44                 global $wgImplicitGroups;
  45                 global $wgGroupPermissions, $wgRevokePermissions, $wgAddGroups, $wgRemoveGroups;
  46                 global $wgGroupsAddToSelf, $wgGroupsRemoveFromSelf;
  47                 $out = $this->getOutput();
  48
  49                 $this->setHeaders();
  50                 $this->outputHeader();
  51                 $out->addModuleStyles( 'mediawiki.special' );
  52
  53                 $out->addHTML(
  54                         Xml::openElement( 'table', array( 'class' => 'wikitable mw-listgrouprights-table' ) ) .
  55                                 '<tr>' .
  56                                         Xml::element( 'th', null, wfMsg( 'listgrouprights-group' ) ) .
  57                                         Xml::element( 'th', null, wfMsg( 'listgrouprights-rights' ) ) .
  58                                 '</tr>'
  59                 );
  60
  61                 $allGroups = array_unique( array_merge(
  62                         array_keys( $wgGroupPermissions ),
  63                         array_keys( $wgRevokePermissions ),
  64                         array_keys( $wgAddGroups ),
  65                         array_keys( $wgRemoveGroups ),
  66                         array_keys( $wgGroupsAddToSelf ),
  67                         array_keys( $wgGroupsRemoveFromSelf )
  68                 ) );
  69                 asort( $allGroups );
  70
  71                 foreach ( $allGroups as $group ) {
  72                         $permissions = isset( $wgGroupPermissions[$group] )
  73                                 ? $wgGroupPermissions[$group]
  74                                 : array();
  75                         $groupname = ( $group == '*' ) // Replace * with a more descriptive groupname
  76                                 ? 'all'
  77                                 : $group;
  78
  79                         $msg = wfMessage( 'group-' . $groupname );
  80                         $groupnameLocalized = !$msg->isBlank() ? $msg->text() : $groupname;
  81
  82                         $msg = wfMessage( 'grouppage-' . $groupname )->inContentLanguage();
  83                         $grouppageLocalized = !$msg->isBlank() ?
  84                                 $msg->text() :
  85                                 MWNamespace::getCanonicalName( NS_PROJECT ) . ':' . $groupname;
  86
  87                         if( $group == '*' ) {
  88                                 // Do not make a link for the generic * group
  89                                 $grouppage = htmlspecialchars( $groupnameLocalized );
  90                         } else {
  91                                 $grouppage = Linker::link(
  92                                         Title::newFromText( $grouppageLocalized ),
  93                                         htmlspecialchars( $groupnameLocalized )
  94                                 );
  95                         }
  96
  97                         if ( $group === 'user' ) {
  98                                 // Link to Special:listusers for implicit group 'user'
  99                                 $grouplink = '<br />' . Linker::link(
 100                                         SpecialPage::getTitleFor( 'Listusers' ),
 101                                         wfMsgHtml( 'listgrouprights-members' ),
 102                                         array(),
 103                                         array(),
 104                                         array( 'known', 'noclasses' )
 105                                 );
 106                         } elseif ( !in_array( $group, $wgImplicitGroups ) ) {
 107                                 $grouplink = '<br />' . Linker::link(
 108                                         SpecialPage::getTitleFor( 'Listusers' ),
 109                                         wfMsgHtml( 'listgrouprights-members' ),
 110                                         array(),
 111                                         array( 'group' => $group ),
 112                                         array( 'known', 'noclasses' )
 113                                 );
 114                         } else {
 115                                 // No link to Special:listusers for other implicit groups as they are unlistable
 116                                 $grouplink = '';
 117                         }
 118
 119                         $revoke = isset( $wgRevokePermissions[$group] ) ? $wgRevokePermissions[$group] : array();
 120                         $addgroups = isset( $wgAddGroups[$group] ) ? $wgAddGroups[$group] : array();
 121                         $removegroups = isset( $wgRemoveGroups[$group] ) ? $wgRemoveGroups[$group] : array();
 122                         $addgroupsSelf = isset( $wgGroupsAddToSelf[$group] ) ? $wgGroupsAddToSelf[$group] : array();
 123                         $removegroupsSelf = isset( $wgGroupsRemoveFromSelf[$group] ) ? $wgGroupsRemoveFromSelf[$group] : array();
 124
 125                         $id = $group == '*' ? false : Sanitizer::escapeId( $group );
 126                         $out->addHTML( Html::rawElement( 'tr', array( 'id' => $id ),
 127                                 "
 128                                 <td>$grouppage$grouplink</td>
 129                                         <td>" .
 130                                                 self::formatPermissions( $permissions, $revoke, $addgroups, $removegroups, $addgroupsSelf, $removegroupsSelf ) .
 131                                         '</td>
 132                                 '
 133                         ) );
 134                 }
 135                 $out->addHTML(
 136                         Xml::closeElement( 'table' ) . "\n<br /><hr />\n"
 137                 );
 138                 $out->wrapWikiMsg( "<div class=\"mw-listgrouprights-key\">\n$1\n</div>", 'listgrouprights-key' );
 139         }
 140
 141         /**
 142          * Create a user-readable list of permissions from the given array.
 143          *
 144          * @param $permissions Array of permission => bool (from $wgGroupPermissions items)
 145          * @param $revoke Array of permission => bool (from $wgRevokePermissions items)
 146          * @param $add Array of groups this group is allowed to add or true
 147          * @param $remove Array of groups this group is allowed to remove or true
 148          * @param $addSelf Array of groups this group is allowed to add to self or true
 149          * @param $removeSelf Array of group this group is allowed to remove from self or true
 150          * @return string List of all granted permissions, separated by comma separator
 151          */
 152          private static function formatPermissions( $permissions, $revoke, $add, $remove, $addSelf, $removeSelf ) {
 153                 global $wgLang;
 154
 155                 $r = array();
 156                 foreach( $permissions as $permission => $granted ) {
 157                         //show as granted only if it isn't revoked to prevent duplicate display of permissions
 158                         if( $granted && ( !isset( $revoke[$permission] ) || !$revoke[$permission] ) ) {
 159                                 $description = wfMsgExt( 'listgrouprights-right-display', array( 'parseinline' ),
 160                                         User::getRightDescription( $permission ),
 161                                         '<span class="mw-listgrouprights-right-name">' . $permission . '</span>'
 162                                 );
 163                                 $r[] = $description;
 164                         }
 165                 }
 166                 foreach( $revoke as $permission => $revoked ) {
 167                         if( $revoked ) {
 168                                 $description = wfMsgExt( 'listgrouprights-right-revoked', array( 'parseinline' ),
 169                                         User::getRightDescription( $permission ),
 170                                         '<span class="mw-listgrouprights-right-name">' . $permission . '</span>'
 171                                 );
 172                                 $r[] = $description;
 173                         }
 174                 }
 175                 sort( $r );
 176                 if( $add === true ){
 177                         $r[] = wfMsgExt( 'listgrouprights-addgroup-all', array( 'escape' ) );
 178                 } elseif( is_array( $add ) && count( $add ) ) {
 179                         $add = array_values( array_unique( $add ) );
 180                         $r[] = wfMsgExt( 'listgrouprights-addgroup', array( 'parseinline' ), $wgLang->listToText( array_map( array( 'User', 'makeGroupLinkWiki' ), $add ) ), count( $add ) );
 181                 }
 182                 if( $remove === true ){
 183                         $r[] = wfMsgExt( 'listgrouprights-removegroup-all', array( 'escape' ) );
 184                 } elseif( is_array( $remove ) && count( $remove ) ) {
 185                         $remove = array_values( array_unique( $remove ) );
 186                         $r[] = wfMsgExt( 'listgrouprights-removegroup', array( 'parseinline' ), $wgLang->listToText( array_map( array( 'User', 'makeGroupLinkWiki' ), $remove ) ), count( $remove ) );
 187                 }
 188                 if( $addSelf === true ){
 189                         $r[] = wfMsgExt( 'listgrouprights-addgroup-self-all', array( 'escape' ) );
 190                 } elseif( is_array( $addSelf ) && count( $addSelf ) ) {
 191                         $addSelf = array_values( array_unique( $addSelf ) );
 192                         $r[] = wfMsgExt( 'listgrouprights-addgroup-self', array( 'parseinline' ), $wgLang->listToText( array_map( array( 'User', 'makeGroupLinkWiki' ), $addSelf ) ), count( $addSelf ) );
 193                 }
 194                 if( $removeSelf === true ){
 195                         $r[] = wfMsgExt( 'listgrouprights-removegroup-self-all', array( 'escape' ) );
 196                 } elseif( is_array( $removeSelf ) && count( $removeSelf ) ) {
 197                         $removeSelf = array_values( array_unique( $removeSelf ) );
 198                         $r[] = wfMsgExt( 'listgrouprights-removegroup-self', array( 'parseinline' ), $wgLang->listToText( array_map( array( 'User', 'makeGroupLinkWiki' ), $removeSelf ) ), count( $removeSelf ) );
 199                 }
 200                 if( empty( $r ) ) {
 201                         return '';
 202                 } else {
 203                         return '<ul><li>' . implode( "</li>\n<li>", $r ) . '</li></ul>';
 204                 }
 205         }
 206 }