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 GPL-2.0-or-later
  23  * @since 1.22
  24  */
  25
  26 use MediaWiki\MediaWikiServices;
  27 use MediaWiki\Revision\RevisionRecord;
  28
  29 /**
  30  * This class formats delete log entries.
  31  *
  32  * @since 1.19
  33  */
  34 class DeleteLogFormatter extends LogFormatter {
  35         /** @var array|null */
  36         private $parsedParametersDeleteLog;
  37
  38         /**
  39          * @inheritDoc
  40          */
  41         protected function getMessageKey() {
  42                 $key = parent::getMessageKey();
  43                 if ( in_array( $this->entry->getSubtype(), [ 'event', 'revision' ] ) ) {
  44                         if ( count( $this->getMessageParameters() ) < 5 ) {
  45                                 // Messages: logentry-delete-event-legacy, logentry-delete-revision-legacy,
  46                                 // logentry-suppress-event-legacy, logentry-suppress-revision-legacy
  47                                 return "$key-legacy";
  48                         }
  49                 } elseif ( $this->entry->getSubtype() === 'restore' ) {
  50                         $rawParams = $this->entry->getParameters();
  51                         if ( !isset( $rawParams[':assoc:count'] ) ) {
  52                                 // Message: logentry-delete-restore-nocount
  53                                 return $key . '-nocount';
  54                         }
  55                 }
  56
  57                 return $key;
  58         }
  59
  60         /**
  61          * @inheritDoc
  62          */
  63         protected function getMessageParameters() {
  64                 if ( $this->parsedParametersDeleteLog !== null ) {
  65                         return $this->parsedParametersDeleteLog;
  66                 }
  67
  68                 $params = parent::getMessageParameters();
  69                 $subtype = $this->entry->getSubtype();
  70                 if ( in_array( $subtype, [ 'event', 'revision' ] ) ) {
  71                         // $params[3] here is 'revision' or 'archive' for page revisions, 'oldimage' or
  72                         // 'filearchive' for file versions, or a comma-separated list of log_ids for log
  73                         // entries. $subtype here is 'revision' for page revisions and file
  74                         // versions, or 'event' for log entries.
  75                         if (
  76                                 ( $subtype === 'event' && count( $params ) === 6 )
  77                                 || (
  78                                         $subtype === 'revision' && isset( $params[3] )
  79                                         && in_array( $params[3], [ 'revision', 'archive', 'oldimage', 'filearchive' ] )
  80                                 )
  81                         ) {
  82                                 // See RevDelList::getLogParams()/RevDelLogList::getLogParams()
  83                                 $paramStart = $subtype === 'revision' ? 4 : 3;
  84
  85                                 $old = $this->parseBitField( $params[$paramStart + 1] );
  86                                 $new = $this->parseBitField( $params[$paramStart + 2] );
  87                                 list( $hid, $unhid, $extra ) = RevisionDeleter::getChanges( $new, $old );
  88                                 $changes = [];
  89                                 // messages used: revdelete-content-hid, revdelete-summary-hid, revdelete-uname-hid
  90                                 foreach ( $hid as $v ) {
  91                                         $changes[] = $this->msg( "$v-hid" )->plain();
  92                                 }
  93                                 // messages used: revdelete-content-unhid, revdelete-summary-unhid,
  94                                 // revdelete-uname-unhid
  95                                 foreach ( $unhid as $v ) {
  96                                         $changes[] = $this->msg( "$v-unhid" )->plain();
  97                                 }
  98                                 foreach ( $extra as $v ) {
  99                                         $changes[] = $this->msg( $v )->plain();
 100                                 }
 101                                 $changeText = $this->context->getLanguage()->listToText( $changes );
 102
 103                                 $newParams = array_slice( $params, 0, 3 );
 104                                 $newParams[3] = $changeText;
 105                                 $ids = is_array( $params[$paramStart] )
 106                                         ? $params[$paramStart]
 107                                         : explode( ',', $params[$paramStart] );
 108                                 $newParams[4] = $this->context->getLanguage()->formatNum( count( $ids ) );
 109
 110                                 $this->parsedParametersDeleteLog = $newParams;
 111                                 return $this->parsedParametersDeleteLog;
 112                         } else {
 113                                 $this->parsedParametersDeleteLog = array_slice( $params, 0, 3 );
 114                                 return $this->parsedParametersDeleteLog;
 115                         }
 116                 } elseif ( $subtype === 'restore' ) {
 117                         $rawParams = $this->entry->getParameters();
 118                         if ( isset( $rawParams[':assoc:count'] ) ) {
 119                                 $countList = [];
 120                                 foreach ( $rawParams[':assoc:count'] as $type => $count ) {
 121                                         if ( $count ) {
 122                                                 // Messages: restore-count-revisions, restore-count-files
 123                                                 $countList[] = $this->context->msg( 'restore-count-' . $type )
 124                                                         ->numParams( $count )->plain();
 125                                         }
 126                                 }
 127                                 $params[3] = $this->context->getLanguage()->listToText( $countList );
 128                         }
 129                 }
 130
 131                 $this->parsedParametersDeleteLog = $params;
 132                 return $this->parsedParametersDeleteLog;
 133         }
 134
 135         protected function parseBitField( $string ) {
 136                 // Input is like ofield=2134 or just the number
 137                 if ( strpos( $string, 'field=' ) === 1 ) {
 138                         list( , $field ) = explode( '=', $string );
 139
 140                         return (int)$field;
 141                 } else {
 142                         return (int)$string;
 143                 }
 144         }
 145
 146         public function getActionLinks() {
 147                 $user = $this->context->getUser();
 148                 $linkRenderer = $this->getLinkRenderer();
 149                 $permissionManager = MediaWikiServices::getInstance()->getPermissionManager();
 150                 if ( !$permissionManager->userHasRight( $user, 'deletedhistory' )
 151                         || $this->entry->isDeleted( LogPage::DELETED_ACTION )
 152                 ) {
 153                         return '';
 154                 }
 155
 156                 switch ( $this->entry->getSubtype() ) {
 157                         case 'delete': // Show undelete link
 158                         case 'delete_redir':
 159                                 if ( $permissionManager->userHasRight( $user, 'undelete' ) ) {
 160                                         $message = 'undeletelink';
 161                                 } else {
 162                                         $message = 'undeleteviewlink';
 163                                 }
 164                                 $revert = $linkRenderer->makeKnownLink(
 165                                         SpecialPage::getTitleFor( 'Undelete' ),
 166                                         $this->msg( $message )->text(),
 167                                         [],
 168                                         [ 'target' => $this->entry->getTarget()->getPrefixedDBkey() ]
 169                                 );
 170
 171                                 return $this->msg( 'parentheses' )->rawParams( $revert )->escaped();
 172
 173                         case 'revision': // If an edit was hidden from a page give a review link to the history
 174                                 $params = $this->extractParameters();
 175                                 if ( !isset( $params[3] ) || !isset( $params[4] ) ) {
 176                                         return '';
 177                                 }
 178
 179                                 // Different revision types use different URL params...
 180                                 $key = $params[3];
 181                                 // This is a array or CSV of the IDs
 182                                 $ids = is_array( $params[4] )
 183                                         ? $params[4]
 184                                         : explode( ',', $params[4] );
 185
 186                                 $links = [];
 187
 188                                 // If there's only one item, we can show a diff link
 189                                 if ( count( $ids ) == 1 ) {
 190                                         // Live revision diffs...
 191                                         if ( $key == 'oldid' || $key == 'revision' ) {
 192                                                 $links[] = $linkRenderer->makeKnownLink(
 193                                                         $this->entry->getTarget(),
 194                                                         $this->msg( 'diff' )->text(),
 195                                                         [],
 196                                                         [
 197                                                                 'diff' => intval( $ids[0] ),
 198                                                                 'unhide' => 1
 199                                                         ]
 200                                                 );
 201                                                 // Deleted revision diffs...
 202                                         } elseif ( $key == 'artimestamp' || $key == 'archive' ) {
 203                                                 $links[] = $linkRenderer->makeKnownLink(
 204                                                         SpecialPage::getTitleFor( 'Undelete' ),
 205                                                         $this->msg( 'diff' )->text(),
 206                                                         [],
 207                                                         [
 208                                                                 'target' => $this->entry->getTarget()->getPrefixedDBkey(),
 209                                                                 'diff' => 'prev',
 210                                                                 'timestamp' => $ids[0]
 211                                                         ]
 212                                                 );
 213                                         }
 214                                 }
 215
 216                                 // View/modify link...
 217                                 $links[] = $linkRenderer->makeKnownLink(
 218                                         SpecialPage::getTitleFor( 'Revisiondelete' ),
 219                                         $this->msg( 'revdel-restore' )->text(),
 220                                         [],
 221                                         [
 222                                                 'target' => $this->entry->getTarget()->getPrefixedText(),
 223                                                 'type' => $key,
 224                                                 'ids' => implode( ',', $ids ),
 225                                         ]
 226                                 );
 227
 228                                 return $this->msg( 'parentheses' )->rawParams(
 229                                         $this->context->getLanguage()->pipeList( $links ) )->escaped();
 230
 231                         case 'event': // Hidden log items, give review link
 232                                 $params = $this->extractParameters();
 233                                 if ( !isset( $params[3] ) ) {
 234                                         return '';
 235                                 }
 236                                 // This is a CSV of the IDs
 237                                 $query = $params[3];
 238                                 if ( is_array( $query ) ) {
 239                                         $query = implode( ',', $query );
 240                                 }
 241                                 // Link to each hidden object ID, $params[1] is the url param
 242                                 $revert = $linkRenderer->makeKnownLink(
 243                                         SpecialPage::getTitleFor( 'Revisiondelete' ),
 244                                         $this->msg( 'revdel-restore' )->text(),
 245                                         [],
 246                                         [
 247                                                 'target' => $this->entry->getTarget()->getPrefixedText(),
 248                                                 'type' => 'logging',
 249                                                 'ids' => $query
 250                                         ]
 251                                 );
 252
 253                                 return $this->msg( 'parentheses' )->rawParams( $revert )->escaped();
 254                         default:
 255                                 return '';
 256                 }
 257         }
 258
 259         protected function getParametersForApi() {
 260                 $entry = $this->entry;
 261                 $params = [];
 262
 263                 $subtype = $this->entry->getSubtype();
 264                 if ( in_array( $subtype, [ 'event', 'revision' ] ) ) {
 265                         $rawParams = $entry->getParameters();
 266                         if ( $subtype === 'event' ) {
 267                                 array_unshift( $rawParams, 'logging' );
 268                         }
 269
 270                         static $map = [
 271                                 '4::type',
 272                                 '5::ids',
 273                                 '6::ofield',
 274                                 '7::nfield',
 275                                 '4::ids' => '5::ids',
 276                                 '5::ofield' => '6::ofield',
 277                                 '6::nfield' => '7::nfield',
 278                         ];
 279                         foreach ( $map as $index => $key ) {
 280                                 if ( isset( $rawParams[$index] ) ) {
 281                                         $rawParams[$key] = $rawParams[$index];
 282                                         unset( $rawParams[$index] );
 283                                 }
 284                         }
 285
 286                         if ( !is_array( $rawParams['5::ids'] ) ) {
 287                                 $rawParams['5::ids'] = explode( ',', $rawParams['5::ids'] );
 288                         }
 289
 290                         $params = [
 291                                 '::type' => $rawParams['4::type'],
 292                                 ':array:ids' => $rawParams['5::ids'],
 293                         ];
 294
 295                         static $fields = [
 296                                 RevisionRecord::DELETED_TEXT => 'content',
 297                                 RevisionRecord::DELETED_COMMENT => 'comment',
 298                                 RevisionRecord::DELETED_USER => 'user',
 299                                 RevisionRecord::DELETED_RESTRICTED => 'restricted',
 300                         ];
 301
 302                         if ( isset( $rawParams['6::ofield'] ) ) {
 303                                 $old = $this->parseBitField( $rawParams['6::ofield'] );
 304                                 $params[':assoc:old'] = [ 'bitmask' => $old ];
 305                                 foreach ( $fields as $bit => $key ) {
 306                                         $params[':assoc:old'][$key] = (bool)( $old & $bit );
 307                                 }
 308                         }
 309                         if ( isset( $rawParams['7::nfield'] ) ) {
 310                                 $new = $this->parseBitField( $rawParams['7::nfield'] );
 311                                 $params[':assoc:new'] = [ 'bitmask' => $new ];
 312                                 foreach ( $fields as $bit => $key ) {
 313                                         $params[':assoc:new'][$key] = (bool)( $new & $bit );
 314                                 }
 315                         }
 316                 } elseif ( $subtype === 'restore' ) {
 317                         $rawParams = $entry->getParameters();
 318                         if ( isset( $rawParams[':assoc:count'] ) ) {
 319                                 $params[':assoc:count'] = $rawParams[':assoc:count'];
 320                         }
 321                 }
 322
 323                 return $params;
 324         }
 325
 326         public function formatParametersForApi() {
 327                 $ret = parent::formatParametersForApi();
 328                 if ( isset( $ret['ids'] ) ) {
 329                         ApiResult::setIndexedTagName( $ret['ids'], 'id' );
 330                 }
 331                 return $ret;
 332         }
 333 }