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 use MediaWiki\MediaWikiServices;
  27
  28 /**
  29  * This class formats delete log entries.
  30  *
  31  * @since 1.19
  32  */
  33 class DeleteLogFormatter extends LogFormatter {
  34         protected function getMessageKey() {
  35                 $key = parent::getMessageKey();
  36                 if ( in_array( $this->entry->getSubtype(), [ 'event', 'revision' ] ) ) {
  37                         if ( count( $this->getMessageParameters() ) < 5 ) {
  38                                 // Messages: logentry-delete-event-legacy, logentry-delete-revision-legacy,
  39                                 // logentry-suppress-event-legacy, logentry-suppress-revision-legacy
  40                                 return "$key-legacy";
  41                         }
  42                 } elseif ( $this->entry->getSubtype() === 'restore' ) {
  43                         $rawParams = $this->entry->getParameters();
  44                         if ( !isset( $rawParams[':assoc:count'] ) ) {
  45                                 // Message: logentry-delete-restore-nocount
  46                                 return $key . '-nocount';
  47                         }
  48                 }
  49
  50                 return $key;
  51         }
  52
  53         protected function getMessageParameters() {
  54                 if ( isset( $this->parsedParametersDeleteLog ) ) {
  55                         return $this->parsedParametersDeleteLog;
  56                 }
  57
  58                 $params = parent::getMessageParameters();
  59                 $subtype = $this->entry->getSubtype();
  60                 if ( in_array( $subtype, [ 'event', 'revision' ] ) ) {
  61                         // $params[3] here is 'revision' or 'archive' for page revisions, 'oldimage' or
  62                         // 'filearchive' for file versions, or a comma-separated list of log_ids for log
  63                         // entries. $subtype here is 'revision' for page revisions and file
  64                         // versions, or 'event' for log entries.
  65                         if (
  66                                 ( $subtype === 'event' && count( $params ) === 6 )
  67                                 || (
  68                                         $subtype === 'revision' && isset( $params[3] )
  69                                         && in_array( $params[3], [ 'revision', 'archive', 'oldimage', 'filearchive' ] )
  70                                 )
  71                         ) {
  72                                 // See RevDelList::getLogParams()/RevDelLogList::getLogParams()
  73                                 $paramStart = $subtype === 'revision' ? 4 : 3;
  74
  75                                 $old = $this->parseBitField( $params[$paramStart + 1] );
  76                                 $new = $this->parseBitField( $params[$paramStart + 2] );
  77                                 list( $hid, $unhid, $extra ) = RevisionDeleter::getChanges( $new, $old );
  78                                 $changes = [];
  79                                 // messages used: revdelete-content-hid, revdelete-summary-hid, revdelete-uname-hid
  80                                 foreach ( $hid as $v ) {
  81                                         $changes[] = $this->msg( "$v-hid" )->plain();
  82                                 }
  83                                 // messages used: revdelete-content-unhid, revdelete-summary-unhid,
  84                                 // revdelete-uname-unhid
  85                                 foreach ( $unhid as $v ) {
  86                                         $changes[] = $this->msg( "$v-unhid" )->plain();
  87                                 }
  88                                 foreach ( $extra as $v ) {
  89                                         $changes[] = $this->msg( $v )->plain();
  90                                 }
  91                                 $changeText = $this->context->getLanguage()->listToText( $changes );
  92
  93                                 $newParams = array_slice( $params, 0, 3 );
  94                                 $newParams[3] = $changeText;
  95                                 $ids = is_array( $params[$paramStart] )
  96                                         ? $params[$paramStart]
  97                                         : explode( ',', $params[$paramStart] );
  98                                 $newParams[4] = $this->context->getLanguage()->formatNum( count( $ids ) );
  99
 100                                 $this->parsedParametersDeleteLog = $newParams;
 101                                 return $this->parsedParametersDeleteLog;
 102                         } else {
 103                                 $this->parsedParametersDeleteLog = array_slice( $params, 0, 3 );
 104                                 return $this->parsedParametersDeleteLog;
 105                         }
 106                 } elseif ( $subtype === 'restore' ) {
 107                         $rawParams = $this->entry->getParameters();
 108                         if ( isset( $rawParams[':assoc:count'] ) ) {
 109                                 $countList = [];
 110                                 foreach ( $rawParams[':assoc:count'] as $type => $count ) {
 111                                         if ( $count ) {
 112                                                 // Messages: restore-count-revisions, restore-count-files
 113                                                 $countList[] = $this->context->msg( 'restore-count-' . $type )
 114                                                         ->numParams( $count )->plain();
 115                                         }
 116                                 }
 117                                 $params[3] = $this->context->getLanguage()->listToText( $countList );
 118                         }
 119                 }
 120
 121                 $this->parsedParametersDeleteLog = $params;
 122                 return $this->parsedParametersDeleteLog;
 123         }
 124
 125         protected function parseBitField( $string ) {
 126                 // Input is like ofield=2134 or just the number
 127                 if ( strpos( $string, 'field=' ) === 1 ) {
 128                         list( , $field ) = explode( '=', $string );
 129
 130                         return (int)$field;
 131                 } else {
 132                         return (int)$string;
 133                 }
 134         }
 135
 136         public function getActionLinks() {
 137                 $user = $this->context->getUser();
 138                 $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
 139                 if ( !$user->isAllowed( 'deletedhistory' )
 140                         || $this->entry->isDeleted( LogPage::DELETED_ACTION )
 141                 ) {
 142                         return '';
 143                 }
 144
 145                 switch ( $this->entry->getSubtype() ) {
 146                         case 'delete': // Show undelete link
 147                         case 'delete_redir':
 148                                 if ( $user->isAllowed( 'undelete' ) ) {
 149                                         $message = 'undeletelink';
 150                                 } else {
 151                                         $message = 'undeleteviewlink';
 152                                 }
 153                                 $revert = $linkRenderer->makeKnownLink(
 154                                         SpecialPage::getTitleFor( 'Undelete' ),
 155                                         $this->msg( $message )->text(),
 156                                         [],
 157                                         [ 'target' => $this->entry->getTarget()->getPrefixedDBkey() ]
 158                                 );
 159
 160                                 return $this->msg( 'parentheses' )->rawParams( $revert )->escaped();
 161
 162                         case 'revision': // If an edit was hidden from a page give a review link to the history
 163                                 $params = $this->extractParameters();
 164                                 if ( !isset( $params[3] ) || !isset( $params[4] ) ) {
 165                                         return '';
 166                                 }
 167
 168                                 // Different revision types use different URL params...
 169                                 $key = $params[3];
 170                                 // This is a array or CSV of the IDs
 171                                 $ids = is_array( $params[4] )
 172                                         ? $params[4]
 173                                         : explode( ',', $params[4] );
 174
 175                                 $links = [];
 176
 177                                 // If there's only one item, we can show a diff link
 178                                 if ( count( $ids ) == 1 ) {
 179                                         // Live revision diffs...
 180                                         if ( $key == 'oldid' || $key == 'revision' ) {
 181                                                 $links[] = $linkRenderer->makeKnownLink(
 182                                                         $this->entry->getTarget(),
 183                                                         $this->msg( 'diff' )->text(),
 184                                                         [],
 185                                                         [
 186                                                                 'diff' => intval( $ids[0] ),
 187                                                                 'unhide' => 1
 188                                                         ]
 189                                                 );
 190                                                 // Deleted revision diffs...
 191                                         } elseif ( $key == 'artimestamp' || $key == 'archive' ) {
 192                                                 $links[] = $linkRenderer->makeKnownLink(
 193                                                         SpecialPage::getTitleFor( 'Undelete' ),
 194                                                         $this->msg( 'diff' )->text(),
 195                                                         [],
 196                                                         [
 197                                                                 'target' => $this->entry->getTarget()->getPrefixedDBkey(),
 198                                                                 'diff' => 'prev',
 199                                                                 'timestamp' => $ids[0]
 200                                                         ]
 201                                                 );
 202                                         }
 203                                 }
 204
 205                                 // View/modify link...
 206                                 $links[] = $linkRenderer->makeKnownLink(
 207                                         SpecialPage::getTitleFor( 'Revisiondelete' ),
 208                                         $this->msg( 'revdel-restore' )->text(),
 209                                         [],
 210                                         [
 211                                                 'target' => $this->entry->getTarget()->getPrefixedText(),
 212                                                 'type' => $key,
 213                                                 'ids' => implode( ',', $ids ),
 214                                         ]
 215                                 );
 216
 217                                 return $this->msg( 'parentheses' )->rawParams(
 218                                         $this->context->getLanguage()->pipeList( $links ) )->escaped();
 219
 220                         case 'event': // Hidden log items, give review link
 221                                 $params = $this->extractParameters();
 222                                 if ( !isset( $params[3] ) ) {
 223                                         return '';
 224                                 }
 225                                 // This is a CSV of the IDs
 226                                 $query = $params[3];
 227                                 if ( is_array( $query ) ) {
 228                                         $query = implode( ',', $query );
 229                                 }
 230                                 // Link to each hidden object ID, $params[1] is the url param
 231                                 $revert = $linkRenderer->makeKnownLink(
 232                                         SpecialPage::getTitleFor( 'Revisiondelete' ),
 233                                         $this->msg( 'revdel-restore' )->text(),
 234                                         [],
 235                                         [
 236                                                 'target' => $this->entry->getTarget()->getPrefixedText(),
 237                                                 'type' => 'logging',
 238                                                 'ids' => $query
 239                                         ]
 240                                 );
 241
 242                                 return $this->msg( 'parentheses' )->rawParams( $revert )->escaped();
 243                         default:
 244                                 return '';
 245                 }
 246         }
 247
 248         protected function getParametersForApi() {
 249                 $entry = $this->entry;
 250                 $params = [];
 251
 252                 $subtype = $this->entry->getSubtype();
 253                 if ( in_array( $subtype, [ 'event', 'revision' ] ) ) {
 254                         $rawParams = $entry->getParameters();
 255                         if ( $subtype === 'event' ) {
 256                                 array_unshift( $rawParams, 'logging' );
 257                         }
 258
 259                         static $map = [
 260                                 '4::type',
 261                                 '5::ids',
 262                                 '6::ofield',
 263                                 '7::nfield',
 264                                 '4::ids' => '5::ids',
 265                                 '5::ofield' => '6::ofield',
 266                                 '6::nfield' => '7::nfield',
 267                         ];
 268                         foreach ( $map as $index => $key ) {
 269                                 if ( isset( $rawParams[$index] ) ) {
 270                                         $rawParams[$key] = $rawParams[$index];
 271                                         unset( $rawParams[$index] );
 272                                 }
 273                         }
 274
 275                         $old = $this->parseBitField( $rawParams['6::ofield'] );
 276                         $new = $this->parseBitField( $rawParams['7::nfield'] );
 277                         if ( !is_array( $rawParams['5::ids'] ) ) {
 278                                 $rawParams['5::ids'] = explode( ',', $rawParams['5::ids'] );
 279                         }
 280
 281                         $params = [
 282                                 '::type' => $rawParams['4::type'],
 283                                 ':array:ids' => $rawParams['5::ids'],
 284                                 ':assoc:old' => [ 'bitmask' => $old ],
 285                                 ':assoc:new' => [ 'bitmask' => $new ],
 286                         ];
 287
 288                         static $fields = [
 289                                 Revision::DELETED_TEXT => 'content',
 290                                 Revision::DELETED_COMMENT => 'comment',
 291                                 Revision::DELETED_USER => 'user',
 292                                 Revision::DELETED_RESTRICTED => 'restricted',
 293                         ];
 294                         foreach ( $fields as $bit => $key ) {
 295                                 $params[':assoc:old'][$key] = (bool)( $old & $bit );
 296                                 $params[':assoc:new'][$key] = (bool)( $new & $bit );
 297                         }
 298                 } elseif ( $subtype === 'restore' ) {
 299                         $rawParams = $entry->getParameters();
 300                         if ( isset( $rawParams[':assoc:count'] ) ) {
 301                                 $params[':assoc:count'] = $rawParams[':assoc:count'];
 302                         }
 303                 }
 304
 305                 return $params;
 306         }
 307
 308         public function formatParametersForApi() {
 309                 $ret = parent::formatParametersForApi();
 310                 if ( isset( $ret['ids'] ) ) {
 311                         ApiResult::setIndexedTagName( $ret['ids'], 'id' );
 312                 }
 313                 return $ret;
 314         }
 315 }