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          * Constructor
  34          */
  35         function __construct() {
  36                 parent::__construct( 'Listgrouprights' );
  37         }
  38
  39         /**
  40          * Show the special page
  41          */
  42         public function execute( $par ) {
  43                 global $wgImplicitGroups;
  44                 global $wgGroupPermissions, $wgRevokePermissions, $wgAddGroups, $wgRemoveGroups;
  45                 global $wgGroupsAddToSelf, $wgGroupsRemoveFromSelf;
  46
  47                 $this->setHeaders();
  48                 $this->outputHeader();
  49
  50                 $out = $this->getOutput();
  51                 $out->addModuleStyles( 'mediawiki.special' );
  52
  53                 $out->wrapWikiMsg( "<div class=\"mw-listgrouprights-key\">\n$1\n</div>", 'listgrouprights-key' );
  54
  55                 $out->addHTML(
  56                         Xml::openElement( 'table', array( 'class' => 'wikitable mw-listgrouprights-table' ) ) .
  57                                 '<tr>' .
  58                                 Xml::element( 'th', null, $this->msg( 'listgrouprights-group' )->text() ) .
  59                                 Xml::element( 'th', null, $this->msg( 'listgrouprights-rights' )->text() ) .
  60                                 '</tr>'
  61                 );
  62
  63                 $allGroups = array_unique( array_merge(
  64                         array_keys( $wgGroupPermissions ),
  65                         array_keys( $wgRevokePermissions ),
  66                         array_keys( $wgAddGroups ),
  67                         array_keys( $wgRemoveGroups ),
  68                         array_keys( $wgGroupsAddToSelf ),
  69                         array_keys( $wgGroupsRemoveFromSelf )
  70                 ) );
  71                 asort( $allGroups );
  72
  73                 foreach ( $allGroups as $group ) {
  74                         $permissions = isset( $wgGroupPermissions[$group] )
  75                                 ? $wgGroupPermissions[$group]
  76                                 : array();
  77                         $groupname = ( $group == '*' ) // Replace * with a more descriptive groupname
  78                                 ? 'all'
  79                                 : $group;
  80
  81                         $msg = $this->msg( 'group-' . $groupname );
  82                         $groupnameLocalized = !$msg->isBlank() ? $msg->text() : $groupname;
  83
  84                         $msg = $this->msg( 'grouppage-' . $groupname )->inContentLanguage();
  85                         $grouppageLocalized = !$msg->isBlank() ?
  86                                 $msg->text() :
  87                                 MWNamespace::getCanonicalName( NS_PROJECT ) . ':' . $groupname;
  88
  89                         if ( $group == '*' ) {
  90                                 // Do not make a link for the generic * group
  91                                 $grouppage = htmlspecialchars( $groupnameLocalized );
  92                         } else {
  93                                 $grouppage = Linker::link(
  94                                         Title::newFromText( $grouppageLocalized ),
  95                                         htmlspecialchars( $groupnameLocalized )
  96                                 );
  97                         }
  98
  99                         if ( $group === 'user' ) {
 100                                 // Link to Special:listusers for implicit group 'user'
 101                                 $grouplink = '<br />' . Linker::linkKnown(
 102                                         SpecialPage::getTitleFor( 'Listusers' ),
 103                                         $this->msg( 'listgrouprights-members' )->escaped()
 104                                 );
 105                         } elseif ( !in_array( $group, $wgImplicitGroups ) ) {
 106                                 $grouplink = '<br />' . Linker::linkKnown(
 107                                         SpecialPage::getTitleFor( 'Listusers' ),
 108                                         $this->msg( 'listgrouprights-members' )->escaped(),
 109                                         array(),
 110                                         array( 'group' => $group )
 111                                 );
 112                         } else {
 113                                 // No link to Special:listusers for other implicit groups as they are unlistable
 114                                 $grouplink = '';
 115                         }
 116
 117                         $revoke = isset( $wgRevokePermissions[$group] ) ? $wgRevokePermissions[$group] : array();
 118                         $addgroups = isset( $wgAddGroups[$group] ) ? $wgAddGroups[$group] : array();
 119                         $removegroups = isset( $wgRemoveGroups[$group] ) ? $wgRemoveGroups[$group] : array();
 120                         $addgroupsSelf = isset( $wgGroupsAddToSelf[$group] ) ? $wgGroupsAddToSelf[$group] : array();
 121                         $removegroupsSelf = isset( $wgGroupsRemoveFromSelf[$group] ) ? $wgGroupsRemoveFromSelf[$group] : array();
 122
 123                         $id = $group == '*' ? false : Sanitizer::escapeId( $group );
 124                         $out->addHTML( Html::rawElement( 'tr', array( 'id' => $id ),
 125                                 "
 126                                 <td>$grouppage$grouplink</td>
 127                                         <td>" .
 128                                         $this->formatPermissions( $permissions, $revoke, $addgroups, $removegroups,
 129                                                 $addgroupsSelf, $removegroupsSelf ) .
 130                                         '</td>
 131                                 '
 132                         ) );
 133                 }
 134                 $out->addHTML( Xml::closeElement( 'table' ) );
 135         }
 136
 137         /**
 138          * Create a user-readable list of permissions from the given array.
 139          *
 140          * @param array $permissions of permission => bool (from $wgGroupPermissions items)
 141          * @param array $revoke of permission => bool (from $wgRevokePermissions items)
 142          * @param array $add of groups this group is allowed to add or true
 143          * @param array $remove of groups this group is allowed to remove or true
 144          * @param array $addSelf of groups this group is allowed to add to self or true
 145          * @param array $removeSelf of group this group is allowed to remove from self or true
 146          * @return string List of all granted permissions, separated by comma separator
 147          */
 148         private function formatPermissions( $permissions, $revoke, $add, $remove, $addSelf, $removeSelf ) {
 149                 $r = array();
 150                 foreach ( $permissions as $permission => $granted ) {
 151                         //show as granted only if it isn't revoked to prevent duplicate display of permissions
 152                         if ( $granted && ( !isset( $revoke[$permission] ) || !$revoke[$permission] ) ) {
 153                                 $description = $this->msg( 'listgrouprights-right-display',
 154                                         User::getRightDescription( $permission ),
 155                                         '<span class="mw-listgrouprights-right-name">' . $permission . '</span>'
 156                                 )->parse();
 157                                 $r[] = $description;
 158                         }
 159                 }
 160                 foreach ( $revoke as $permission => $revoked ) {
 161                         if ( $revoked ) {
 162                                 $description = $this->msg( 'listgrouprights-right-revoked',
 163                                         User::getRightDescription( $permission ),
 164                                         '<span class="mw-listgrouprights-right-name">' . $permission . '</span>'
 165                                 )->parse();
 166                                 $r[] = $description;
 167                         }
 168                 }
 169
 170                 sort( $r );
 171
 172                 $lang = $this->getLanguage();
 173
 174                 if ( $add === true ) {
 175                         $r[] = $this->msg( 'listgrouprights-addgroup-all' )->escaped();
 176                 } elseif ( is_array( $add ) && count( $add ) ) {
 177                         $add = array_values( array_unique( $add ) );
 178                         $r[] = $this->msg( 'listgrouprights-addgroup',
 179                                 $lang->listToText( array_map( array( 'User', 'makeGroupLinkWiki' ), $add ) ),
 180                                 count( $add )
 181                         )->parse();
 182                 }
 183
 184                 if ( $remove === true ) {
 185                         $r[] = $this->msg( 'listgrouprights-removegroup-all' )->escaped();
 186                 } elseif ( is_array( $remove ) && count( $remove ) ) {
 187                         $remove = array_values( array_unique( $remove ) );
 188                         $r[] = $this->msg( 'listgrouprights-removegroup',
 189                                 $lang->listToText( array_map( array( 'User', 'makeGroupLinkWiki' ), $remove ) ),
 190                                 count( $remove )
 191                         )->parse();
 192                 }
 193
 194                 if ( $addSelf === true ) {
 195                         $r[] = $this->msg( 'listgrouprights-addgroup-self-all' )->escaped();
 196                 } elseif ( is_array( $addSelf ) && count( $addSelf ) ) {
 197                         $addSelf = array_values( array_unique( $addSelf ) );
 198                         $r[] = $this->msg( 'listgrouprights-addgroup-self',
 199                                 $lang->listToText( array_map( array( 'User', 'makeGroupLinkWiki' ), $addSelf ) ),
 200                                 count( $addSelf )
 201                         )->parse();
 202                 }
 203
 204                 if ( $removeSelf === true ) {
 205                         $r[] = $this->msg( 'listgrouprights-removegroup-self-all' )->parse();
 206                 } elseif ( is_array( $removeSelf ) && count( $removeSelf ) ) {
 207                         $removeSelf = array_values( array_unique( $removeSelf ) );
 208                         $r[] = $this->msg( 'listgrouprights-removegroup-self',
 209                                 $lang->listToText( array_map( array( 'User', 'makeGroupLinkWiki' ), $removeSelf ) ),
 210                                 count( $removeSelf )
 211                         )->parse();
 212                 }
 213
 214                 if ( empty( $r ) ) {
 215                         return '';
 216                 } else {
 217                         return '<ul><li>' . implode( "</li>\n<li>", $r ) . '</li></ul>';
 218                 }
 219         }
 220
 221         protected function getGroupName() {
 222                 return 'users';
 223         }
 224 }