includes/page/ImageHistoryList.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  */
  20
  21 /**
  22  * Builds the image revision log shown on image pages
  23  *
  24  * @ingroup Media
  25  */
  26 class ImageHistoryList extends ContextSource {
  27
  28         /**
  29          * @var Title
  30          */
  31         protected $title;
  32
  33         /**
  34          * @var File
  35          */
  36         protected $img;
  37
  38         /**
  39          * @var ImagePage
  40          */
  41         protected $imagePage;
  42
  43         /**
  44          * @var File
  45          */
  46         protected $current;
  47
  48         protected $repo, $showThumb;
  49         protected $preventClickjacking = false;
  50
  51         /**
  52          * @param ImagePage $imagePage
  53          */
  54         public function __construct( $imagePage ) {
  55                 global $wgShowArchiveThumbnails;
  56                 $this->current = $imagePage->getPage()->getFile();
  57                 $this->img = $imagePage->getDisplayedFile();
  58                 $this->title = $imagePage->getTitle();
  59                 $this->imagePage = $imagePage;
  60                 $this->showThumb = $wgShowArchiveThumbnails && $this->img->canRender();
  61                 $this->setContext( $imagePage->getContext() );
  62         }
  63
  64         /**
  65          * @return ImagePage
  66          */
  67         public function getImagePage() {
  68                 return $this->imagePage;
  69         }
  70
  71         /**
  72          * @return File
  73          */
  74         public function getFile() {
  75                 return $this->img;
  76         }
  77
  78         /**
  79          * @param string $navLinks
  80          * @return string
  81          */
  82         public function beginImageHistoryList( $navLinks = '' ) {
  83                 return Xml::element( 'h2', [ 'id' => 'filehistory' ], $this->msg( 'filehist' )->text() )
  84                 . "\n"
  85                 . "<div id=\"mw-imagepage-section-filehistory\">\n"
  86                 . $this->msg( 'filehist-help' )->parseAsBlock()
  87                 . $navLinks . "\n"
  88                 . Xml::openElement( 'table', [ 'class' => 'wikitable filehistory' ] ) . "\n"
  89                 . '<tr><th></th>'
  90                 . ( $this->current->isLocal()
  91                 && ( $this->getUser()->isAllowedAny( 'delete', 'deletedhistory' ) ) ? '<th></th>' : '' )
  92                 . '<th>' . $this->msg( 'filehist-datetime' )->escaped() . '</th>'
  93                 . ( $this->showThumb ? '<th>' . $this->msg( 'filehist-thumb' )->escaped() . '</th>' : '' )
  94                 . '<th>' . $this->msg( 'filehist-dimensions' )->escaped() . '</th>'
  95                 . '<th>' . $this->msg( 'filehist-user' )->escaped() . '</th>'
  96                 . '<th>' . $this->msg( 'filehist-comment' )->escaped() . '</th>'
  97                 . "</tr>\n";
  98         }
  99
 100         /**
 101          * @param string $navLinks
 102          * @return string
 103          */
 104         public function endImageHistoryList( $navLinks = '' ) {
 105                 return "</table>\n$navLinks\n</div>\n";
 106         }
 107
 108         /**
 109          * @param bool $iscur
 110          * @param File $file
 111          * @return string
 112          */
 113         public function imageHistoryLine( $iscur, $file ) {
 114                 global $wgContLang;
 115
 116                 $user = $this->getUser();
 117                 $lang = $this->getLanguage();
 118                 $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
 119                 $img = $iscur ? $file->getName() : $file->getArchiveName();
 120                 $userId = $file->getUser( 'id' );
 121                 $userText = $file->getUser( 'text' );
 122                 $description = $file->getDescription( File::FOR_THIS_USER, $user );
 123
 124                 $local = $this->current->isLocal();
 125                 $row = $selected = '';
 126
 127                 // Deletion link
 128                 if ( $local && ( $user->isAllowedAny( 'delete', 'deletedhistory' ) ) ) {
 129                         $row .= '<td>';
 130                         # Link to remove from history
 131                         if ( $user->isAllowed( 'delete' ) ) {
 132                                 $q = [ 'action' => 'delete' ];
 133                                 if ( !$iscur ) {
 134                                         $q['oldimage'] = $img;
 135                                 }
 136                                 $row .= Linker::linkKnown(
 137                                         $this->title,
 138                                         $this->msg( $iscur ? 'filehist-deleteall' : 'filehist-deleteone' )->escaped(),
 139                                         [], $q
 140                                 );
 141                         }
 142                         # Link to hide content. Don't show useless link to people who cannot hide revisions.
 143                         $canHide = $user->isAllowed( 'deleterevision' );
 144                         if ( $canHide || ( $user->isAllowed( 'deletedhistory' ) && $file->getVisibility() ) ) {
 145                                 if ( $user->isAllowed( 'delete' ) ) {
 146                                         $row .= '<br />';
 147                                 }
 148                                 // If file is top revision or locked from this user, don't link
 149                                 if ( $iscur || !$file->userCan( File::DELETED_RESTRICTED, $user ) ) {
 150                                         $del = Linker::revDeleteLinkDisabled( $canHide );
 151                                 } else {
 152                                         list( $ts, ) = explode( '!', $img, 2 );
 153                                         $query = [
 154                                                 'type' => 'oldimage',
 155                                                 'target' => $this->title->getPrefixedText(),
 156                                                 'ids' => $ts,
 157                                         ];
 158                                         $del = Linker::revDeleteLink( $query,
 159                                                 $file->isDeleted( File::DELETED_RESTRICTED ), $canHide );
 160                                 }
 161                                 $row .= $del;
 162                         }
 163                         $row .= '</td>';
 164                 }
 165
 166                 // Reversion link/current indicator
 167                 $row .= '<td>';
 168                 if ( $iscur ) {
 169                         $row .= $this->msg( 'filehist-current' )->escaped();
 170                 } elseif ( $local && $this->title->quickUserCan( 'edit', $user )
 171                         && $this->title->quickUserCan( 'upload', $user )
 172                 ) {
 173                         if ( $file->isDeleted( File::DELETED_FILE ) ) {
 174                                 $row .= $this->msg( 'filehist-revert' )->escaped();
 175                         } else {
 176                                 $row .= Linker::linkKnown(
 177                                         $this->title,
 178                                         $this->msg( 'filehist-revert' )->escaped(),
 179                                         [],
 180                                         [
 181                                                 'action' => 'revert',
 182                                                 'oldimage' => $img,
 183                                         ]
 184                                 );
 185                         }
 186                 }
 187                 $row .= '</td>';
 188
 189                 // Date/time and image link
 190                 if ( $file->getTimestamp() === $this->img->getTimestamp() ) {
 191                         $selected = "class='filehistory-selected'";
 192                 }
 193                 $row .= "<td $selected style='white-space: nowrap;'>";
 194                 if ( !$file->userCan( File::DELETED_FILE, $user ) ) {
 195                         # Don't link to unviewable files
 196                         $row .= '<span class="history-deleted">'
 197                                 . $lang->userTimeAndDate( $timestamp, $user ) . '</span>';
 198                 } elseif ( $file->isDeleted( File::DELETED_FILE ) ) {
 199                         if ( $local ) {
 200                                 $this->preventClickjacking();
 201                                 $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
 202                                 # Make a link to review the image
 203                                 $url = Linker::linkKnown(
 204                                         $revdel,
 205                                         $lang->userTimeAndDate( $timestamp, $user ),
 206                                         [],
 207                                         [
 208                                                 'target' => $this->title->getPrefixedText(),
 209                                                 'file' => $img,
 210                                                 'token' => $user->getEditToken( $img )
 211                                         ]
 212                                 );
 213                         } else {
 214                                 $url = $lang->userTimeAndDate( $timestamp, $user );
 215                         }
 216                         $row .= '<span class="history-deleted">' . $url . '</span>';
 217                 } elseif ( !$file->exists() ) {
 218                         $row .= '<span class="mw-file-missing">'
 219                                 . $lang->userTimeAndDate( $timestamp, $user ) . '</span>';
 220                 } else {
 221                         $url = $iscur ? $this->current->getUrl() : $this->current->getArchiveUrl( $img );
 222                         $row .= Xml::element(
 223                                 'a',
 224                                 [ 'href' => $url ],
 225                                 $lang->userTimeAndDate( $timestamp, $user )
 226                         );
 227                 }
 228                 $row .= "</td>";
 229
 230                 // Thumbnail
 231                 if ( $this->showThumb ) {
 232                         $row .= '<td>' . $this->getThumbForLine( $file ) . '</td>';
 233                 }
 234
 235                 // Image dimensions + size
 236                 $row .= '<td>';
 237                 $row .= htmlspecialchars( $file->getDimensionsString() );
 238                 $row .= $this->msg( 'word-separator' )->escaped();
 239                 $row .= '<span style="white-space: nowrap;">';
 240                 $row .= $this->msg( 'parentheses' )->sizeParams( $file->getSize() )->escaped();
 241                 $row .= '</span>';
 242                 $row .= '</td>';
 243
 244                 // Uploading user
 245                 $row .= '<td>';
 246                 // Hide deleted usernames
 247                 if ( $file->isDeleted( File::DELETED_USER ) ) {
 248                         $row .= '<span class="history-deleted">'
 249                                 . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
 250                 } else {
 251                         if ( $local ) {
 252                                 $row .= Linker::userLink( $userId, $userText );
 253                                 $row .= '<span style="white-space: nowrap;">';
 254                                 $row .= Linker::userToolLinks( $userId, $userText );
 255                                 $row .= '</span>';
 256                         } else {
 257                                 $row .= htmlspecialchars( $userText );
 258                         }
 259                 }
 260                 $row .= '</td>';
 261
 262                 // Don't show deleted descriptions
 263                 if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
 264                         $row .= '<td><span class="history-deleted">' .
 265                                 $this->msg( 'rev-deleted-comment' )->escaped() . '</span></td>';
 266                 } else {
 267                         $row .= '<td dir="' . $wgContLang->getDir() . '">' .
 268                                 Linker::formatComment( $description, $this->title ) . '</td>';
 269                 }
 270
 271                 $rowClass = null;
 272                 Hooks::run( 'ImagePageFileHistoryLine', [ $this, $file, &$row, &$rowClass ] );
 273                 $classAttr = $rowClass ? " class='$rowClass'" : '';
 274
 275                 return "<tr{$classAttr}>{$row}</tr>\n";
 276         }
 277
 278         /**
 279          * @param File $file
 280          * @return string
 281          */
 282         protected function getThumbForLine( $file ) {
 283                 $lang = $this->getLanguage();
 284                 $user = $this->getUser();
 285                 if ( $file->allowInlineDisplay() && $file->userCan( File::DELETED_FILE, $user )
 286                         && !$file->isDeleted( File::DELETED_FILE )
 287                 ) {
 288                         $params = [
 289                                 'width' => '120',
 290                                 'height' => '120',
 291                         ];
 292                         $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
 293
 294                         $thumbnail = $file->transform( $params );
 295                         $options = [
 296                                 'alt' => $this->msg( 'filehist-thumbtext',
 297                                         $lang->userTimeAndDate( $timestamp, $user ),
 298                                         $lang->userDate( $timestamp, $user ),
 299                                         $lang->userTime( $timestamp, $user ) )->text(),
 300                                 'file-link' => true,
 301                         ];
 302
 303                         if ( !$thumbnail ) {
 304                                 return $this->msg( 'filehist-nothumb' )->escaped();
 305                         }
 306
 307                         return $thumbnail->toHtml( $options );
 308                 } else {
 309                         return $this->msg( 'filehist-nothumb' )->escaped();
 310                 }
 311         }
 312
 313         /**
 314          * @param bool $enable
 315          */
 316         protected function preventClickjacking( $enable = true ) {
 317                 $this->preventClickjacking = $enable;
 318         }
 319
 320         /**
 321          * @return bool
 322          */
 323         public function getPreventClickjacking() {
 324                 return $this->preventClickjacking;
 325         }
 326 }