includes/logging/DeleteLogFormatter.php

   1 <?php
   2 /**
   3  * Formatter for delete log entries.
   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  * @author Niklas Laxström
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
  23  * @since 1.22
  24  */
  25
  26 /**
  27  * This class formats delete log entries.
  28  *
  29  * @since 1.19
  30  */
  31 class DeleteLogFormatter extends LogFormatter {
  32         protected function getMessageKey() {
  33                 $key = parent::getMessageKey();
  34                 if ( in_array( $this->entry->getSubtype(), array( 'event', 'revision' ) ) ) {
  35                         if ( count( $this->getMessageParameters() ) < 5 ) {
  36                                 return "$key-legacy";
  37                         }
  38                 }
  39
  40                 return $key;
  41         }
  42
  43         protected function getMessageParameters() {
  44                 if ( isset( $this->parsedParametersDeleteLog ) ) {
  45                         return $this->parsedParametersDeleteLog;
  46                 }
  47
  48                 $params = parent::getMessageParameters();
  49                 $subtype = $this->entry->getSubtype();
  50                 if ( in_array( $subtype, array( 'event', 'revision' ) ) ) {
  51                         // $params[3] here is 'revision' for page revisions, 'oldimage' for
  52                         // file versions, or a comma-separated list of log_ids for log
  53                         // entries. $subtype here is 'revision' for page revisions and file
  54                         // versions, or 'event' for log entries.
  55                         if ( ( $subtype === 'event' && count( $params ) === 6 )
  56                                 || ( $subtype === 'revision' && isset( $params[3] )
  57                                         && ( $params[3] === 'revision' || $params[3] === 'oldimage' )
  58                                 )
  59                         ) {
  60                                 $paramStart = $subtype === 'revision' ? 4 : 3;
  61
  62                                 $old = $this->parseBitField( $params[$paramStart + 1] );
  63                                 $new = $this->parseBitField( $params[$paramStart + 2] );
  64                                 list( $hid, $unhid, $extra ) = RevisionDeleter::getChanges( $new, $old );
  65                                 $changes = array();
  66                                 foreach ( $hid as $v ) {
  67                                         $changes[] = $this->msg( "$v-hid" )->plain();
  68                                 }
  69                                 foreach ( $unhid as $v ) {
  70                                         $changes[] = $this->msg( "$v-unhid" )->plain();
  71                                 }
  72                                 foreach ( $extra as $v ) {
  73                                         $changes[] = $this->msg( $v )->plain();
  74                                 }
  75                                 $changeText = $this->context->getLanguage()->listToText( $changes );
  76
  77                                 $newParams = array_slice( $params, 0, 3 );
  78                                 $newParams[3] = $changeText;
  79                                 $count = count( explode( ',', $params[$paramStart] ) );
  80                                 $newParams[4] = $this->context->getLanguage()->formatNum( $count );
  81
  82                                 return $this->parsedParametersDeleteLog = $newParams;
  83                         } else {
  84                                 return $this->parsedParametersDeleteLog = array_slice( $params, 0, 3 );
  85                         }
  86                 }
  87
  88                 return $this->parsedParametersDeleteLog = $params;
  89         }
  90
  91         protected function parseBitField( $string ) {
  92                 // Input is like ofield=2134 or just the number
  93                 if ( strpos( $string, 'field=' ) === 1 ) {
  94                         list( , $field ) = explode( '=', $string );
  95
  96                         return (int)$field;
  97                 } else {
  98                         return (int)$string;
  99                 }
 100         }
 101
 102         public function getActionLinks() {
 103                 $user = $this->context->getUser();
 104                 if ( !$user->isAllowed( 'deletedhistory' )
 105                         || $this->entry->isDeleted( LogPage::DELETED_ACTION )
 106                 ) {
 107                         return '';
 108                 }
 109
 110                 switch ( $this->entry->getSubtype() ) {
 111                         case 'delete': // Show undelete link
 112                                 if ( $user->isAllowed( 'undelete' ) ) {
 113                                         $message = 'undeletelink';
 114                                 } else {
 115                                         $message = 'undeleteviewlink';
 116                                 }
 117                                 $revert = Linker::linkKnown(
 118                                         SpecialPage::getTitleFor( 'Undelete' ),
 119                                         $this->msg( $message )->escaped(),
 120                                         array(),
 121                                         array( 'target' => $this->entry->getTarget()->getPrefixedDBkey() )
 122                                 );
 123
 124                                 return $this->msg( 'parentheses' )->rawParams( $revert )->escaped();
 125
 126                         case 'revision': // If an edit was hidden from a page give a review link to the history
 127                                 $params = $this->extractParameters();
 128                                 if ( !isset( $params[3] ) || !isset( $params[4] ) ) {
 129                                         return '';
 130                                 }
 131
 132                                 // Different revision types use different URL params...
 133                                 $key = $params[3];
 134                                 // This is a CSV of the IDs
 135                                 $ids = explode( ',', $params[4] );
 136
 137                                 $links = array();
 138
 139                                 // If there's only one item, we can show a diff link
 140                                 if ( count( $ids ) == 1 ) {
 141                                         // Live revision diffs...
 142                                         if ( $key == 'oldid' || $key == 'revision' ) {
 143                                                 $links[] = Linker::linkKnown(
 144                                                         $this->entry->getTarget(),
 145                                                         $this->msg( 'diff' )->escaped(),
 146                                                         array(),
 147                                                         array(
 148                                                                 'diff' => intval( $ids[0] ),
 149                                                                 'unhide' => 1
 150                                                         )
 151                                                 );
 152                                                 // Deleted revision diffs...
 153                                         } elseif ( $key == 'artimestamp' || $key == 'archive' ) {
 154                                                 $links[] = Linker::linkKnown(
 155                                                         SpecialPage::getTitleFor( 'Undelete' ),
 156                                                         $this->msg( 'diff' )->escaped(),
 157                                                         array(),
 158                                                         array(
 159                                                                 'target' => $this->entry->getTarget()->getPrefixedDBkey(),
 160                                                                 'diff' => 'prev',
 161                                                                 'timestamp' => $ids[0]
 162                                                         )
 163                                                 );
 164                                         }
 165                                 }
 166
 167                                 // View/modify link...
 168                                 $links[] = Linker::linkKnown(
 169                                         SpecialPage::getTitleFor( 'Revisiondelete' ),
 170                                         $this->msg( 'revdel-restore' )->escaped(),
 171                                         array(),
 172                                         array(
 173                                                 'target' => $this->entry->getTarget()->getPrefixedText(),
 174                                                 'type' => $key,
 175                                                 'ids' => implode( ',', $ids ),
 176                                         )
 177                                 );
 178
 179                                 return $this->msg( 'parentheses' )->rawParams(
 180                                         $this->context->getLanguage()->pipeList( $links ) )->escaped();
 181
 182                         case 'event': // Hidden log items, give review link
 183                                 $params = $this->extractParameters();
 184                                 if ( !isset( $params[3] ) ) {
 185                                         return '';
 186                                 }
 187                                 // This is a CSV of the IDs
 188                                 $query = $params[3];
 189                                 // Link to each hidden object ID, $params[1] is the url param
 190                                 $revert = Linker::linkKnown(
 191                                         SpecialPage::getTitleFor( 'Revisiondelete' ),
 192                                         $this->msg( 'revdel-restore' )->escaped(),
 193                                         array(),
 194                                         array(
 195                                                 'target' => $this->entry->getTarget()->getPrefixedText(),
 196                                                 'type' => 'logging',
 197                                                 'ids' => $query
 198                                         )
 199                                 );
 200
 201                                 return $this->msg( 'parentheses' )->rawParams( $revert )->escaped();
 202                         default:
 203                                 return '';
 204                 }
 205         }
 206 }