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 use MediaWiki\MediaWikiServices;
  22
  23 /**
  24  * Builds the image revision log shown on image pages
  25  *
  26  * @ingroup Media
  27  */
  28 class ImageHistoryList extends ContextSource {
  29
  30         /**
  31          * @var Title
  32          */
  33         protected $title;
  34
  35         /**
  36          * @var File
  37          */
  38         protected $img;
  39
  40         /**
  41          * @var ImagePage
  42          */
  43         protected $imagePage;
  44
  45         /**
  46          * @var File
  47          */
  48         protected $current;
  49
  50         protected $repo, $showThumb;
  51         protected $preventClickjacking = false;
  52
  53         /**
  54          * @param ImagePage $imagePage
  55          */
  56         public function __construct( $imagePage ) {
  57                 $context = $imagePage->getContext();
  58                 $this->current = $imagePage->getPage()->getFile();
  59                 $this->img = $imagePage->getDisplayedFile();
  60                 $this->title = $imagePage->getTitle();
  61                 $this->imagePage = $imagePage;
  62                 $this->showThumb = $context->getConfig()->get( 'ShowArchiveThumbnails' ) &&
  63                         $this->img->canRender();
  64                 $this->setContext( $context );
  65         }
  66
  67         /**
  68          * @return ImagePage
  69          */
  70         public function getImagePage() {
  71                 return $this->imagePage;
  72         }
  73
  74         /**
  75          * @return File
  76          */
  77         public function getFile() {
  78                 return $this->img;
  79         }
  80
  81         /**
  82          * @param string $navLinks
  83          * @return string
  84          */
  85         public function beginImageHistoryList( $navLinks = '' ) {
  86                 return Xml::element( 'h2', [ 'id' => 'filehistory' ], $this->msg( 'filehist' )->text() )
  87                 . "\n"
  88                 . "<div id=\"mw-imagepage-section-filehistory\">\n"
  89                 . $this->msg( 'filehist-help' )->parseAsBlock()
  90                 . $navLinks . "\n"
  91                 . Xml::openElement( 'table', [ 'class' => 'wikitable filehistory' ] ) . "\n"
  92                 . '<tr><th></th>'
  93                 . ( $this->current->isLocal()
  94                 && ( $this->getUser()->isAllowedAny( 'delete', 'deletedhistory' ) ) ? '<th></th>' : '' )
  95                 . '<th>' . $this->msg( 'filehist-datetime' )->escaped() . '</th>'
  96                 . ( $this->showThumb ? '<th>' . $this->msg( 'filehist-thumb' )->escaped() . '</th>' : '' )
  97                 . '<th>' . $this->msg( 'filehist-dimensions' )->escaped() . '</th>'
  98                 . '<th>' . $this->msg( 'filehist-user' )->escaped() . '</th>'
  99                 . '<th>' . $this->msg( 'filehist-comment' )->escaped() . '</th>'
 100                 . "</tr>\n";
 101         }
 102
 103         /**
 104          * @param string $navLinks
 105          * @return string
 106          */
 107         public function endImageHistoryList( $navLinks = '' ) {
 108                 return "</table>\n$navLinks\n</div>\n";
 109         }
 110
 111         /**
 112          * @param bool $iscur
 113          * @param File $file
 114          * @return string
 115          */
 116         public function imageHistoryLine( $iscur, $file ) {
 117                 $user = $this->getUser();
 118                 $lang = $this->getLanguage();
 119                 $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
 120                 $img = $iscur ? $file->getName() : $file->getArchiveName();
 121                 $userId = $file->getUser( 'id' );
 122                 $userText = $file->getUser( 'text' );
 123                 $description = $file->getDescription( File::FOR_THIS_USER, $user );
 124
 125                 $local = $this->current->isLocal();
 126                 $row = $selected = '';
 127
 128                 // Deletion link
 129                 if ( $local && ( $user->isAllowedAny( 'delete', 'deletedhistory' ) ) ) {
 130                         $row .= '<td>';
 131                         # Link to remove from history
 132                         if ( $user->isAllowed( 'delete' ) ) {
 133                                 $q = [ 'action' => 'delete' ];
 134                                 if ( !$iscur ) {
 135                                         $q['oldimage'] = $img;
 136                                 }
 137                                 $row .= Linker::linkKnown(
 138                                         $this->title,
 139                                         $this->msg( $iscur ? 'filehist-deleteall' : 'filehist-deleteone' )->escaped(),
 140                                         [], $q
 141                                 );
 142                         }
 143                         # Link to hide content. Don't show useless link to people who cannot hide revisions.
 144                         $canHide = $user->isAllowed( 'deleterevision' );
 145                         if ( $canHide || ( $user->isAllowed( 'deletedhistory' ) && $file->getVisibility() ) ) {
 146                                 if ( $user->isAllowed( 'delete' ) ) {
 147                                         $row .= '<br />';
 148                                 }
 149                                 // If file is top revision or locked from this user, don't link
 150                                 if ( $iscur || !$file->userCan( File::DELETED_RESTRICTED, $user ) ) {
 151                                         $del = Linker::revDeleteLinkDisabled( $canHide );
 152                                 } else {
 153                                         list( $ts, ) = explode( '!', $img, 2 );
 154                                         $query = [
 155                                                 'type' => 'oldimage',
 156                                                 'target' => $this->title->getPrefixedText(),
 157                                                 'ids' => $ts,
 158                                         ];
 159                                         $del = Linker::revDeleteLink( $query,
 160                                                 $file->isDeleted( File::DELETED_RESTRICTED ), $canHide );
 161                                 }
 162                                 $row .= $del;
 163                         }
 164                         $row .= '</td>';
 165                 }
 166
 167                 // Reversion link/current indicator
 168                 $row .= '<td>';
 169                 if ( $iscur ) {
 170                         $row .= $this->msg( 'filehist-current' )->escaped();
 171                 } elseif ( $local && $this->title->quickUserCan( 'edit', $user )
 172                         && $this->title->quickUserCan( 'upload', $user )
 173                 ) {
 174                         if ( $file->isDeleted( File::DELETED_FILE ) ) {
 175                                 $row .= $this->msg( 'filehist-revert' )->escaped();
 176                         } else {
 177                                 $row .= Linker::linkKnown(
 178                                         $this->title,
 179                                         $this->msg( 'filehist-revert' )->escaped(),
 180                                         [],
 181                                         [
 182                                                 'action' => 'revert',
 183                                                 'oldimage' => $img,
 184                                         ]
 185                                 );
 186                         }
 187                 }
 188                 $row .= '</td>';
 189
 190                 // Date/time and image link
 191                 if ( $file->getTimestamp() === $this->img->getTimestamp() ) {
 192                         $selected = "class='filehistory-selected'";
 193                 }
 194                 $row .= "<td $selected style='white-space: nowrap;'>";
 195                 if ( !$file->userCan( File::DELETED_FILE, $user ) ) {
 196                         # Don't link to unviewable files
 197                         $row .= Html::element( 'span', [ 'class' => 'history-deleted' ],
 198                                 $lang->userTimeAndDate( $timestamp, $user )
 199                         );
 200                 } elseif ( $file->isDeleted( File::DELETED_FILE ) ) {
 201                         $timeAndDate = htmlspecialchars( $lang->userTimeAndDate( $timestamp, $user ) );
 202                         if ( $local ) {
 203                                 $this->preventClickjacking();
 204                                 $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
 205                                 # Make a link to review the image
 206                                 $url = Linker::linkKnown(
 207                                         $revdel,
 208                                         $timeAndDate,
 209                                         [],
 210                                         [
 211                                                 'target' => $this->title->getPrefixedText(),
 212                                                 'file' => $img,
 213                                                 'token' => $user->getEditToken( $img )
 214                                         ]
 215                                 );
 216                         } else {
 217                                 $url = $timeAndDate;
 218                         }
 219                         $row .= '<span class="history-deleted">' . $url . '</span>';
 220                 } elseif ( !$file->exists() ) {
 221                         $row .= Html::element( 'span', [ 'class' => 'mw-file-missing' ],
 222                                 $lang->userTimeAndDate( $timestamp, $user )
 223                         );
 224                 } else {
 225                         $url = $iscur ? $this->current->getUrl() : $this->current->getArchiveUrl( $img );
 226                         $row .= Xml::element(
 227                                 'a',
 228                                 [ 'href' => $url ],
 229                                 $lang->userTimeAndDate( $timestamp, $user )
 230                         );
 231                 }
 232                 $row .= "</td>";
 233
 234                 // Thumbnail
 235                 if ( $this->showThumb ) {
 236                         $row .= '<td>' . $this->getThumbForLine( $file ) . '</td>';
 237                 }
 238
 239                 // Image dimensions + size
 240                 $row .= '<td>';
 241                 $row .= htmlspecialchars( $file->getDimensionsString() );
 242                 $row .= $this->msg( 'word-separator' )->escaped();
 243                 $row .= '<span style="white-space: nowrap;">';
 244                 $row .= $this->msg( 'parentheses' )->sizeParams( $file->getSize() )->escaped();
 245                 $row .= '</span>';
 246                 $row .= '</td>';
 247
 248                 // Uploading user
 249                 $row .= '<td>';
 250                 // Hide deleted usernames
 251                 if ( $file->isDeleted( File::DELETED_USER ) ) {
 252                         $row .= '<span class="history-deleted">'
 253                                 . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
 254                 } else {
 255                         if ( $local ) {
 256                                 $row .= Linker::userLink( $userId, $userText );
 257                                 $row .= '<span style="white-space: nowrap;">';
 258                                 $row .= Linker::userToolLinks( $userId, $userText );
 259                                 $row .= '</span>';
 260                         } else {
 261                                 $row .= htmlspecialchars( $userText );
 262                         }
 263                 }
 264                 $row .= '</td>';
 265
 266                 // Don't show deleted descriptions
 267                 if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
 268                         $row .= '<td><span class="history-deleted">' .
 269                                 $this->msg( 'rev-deleted-comment' )->escaped() . '</span></td>';
 270                 } else {
 271                         $contLang = MediaWikiServices::getInstance()->getContentLanguage();
 272                         $row .= Html::rawElement(
 273                                 'td',
 274                                 [ 'dir' => $contLang->getDir() ],
 275                                 Linker::formatComment( $description, $this->title )
 276                         );
 277                 }
 278
 279                 $rowClass = null;
 280                 Hooks::run( 'ImagePageFileHistoryLine', [ $this, $file, &$row, &$rowClass ] );
 281                 $classAttr = $rowClass ? " class='$rowClass'" : '';
 282
 283                 return "<tr{$classAttr}>{$row}</tr>\n";
 284         }
 285
 286         /**
 287          * @param File $file
 288          * @return string
 289          */
 290         protected function getThumbForLine( $file ) {
 291                 $lang = $this->getLanguage();
 292                 $user = $this->getUser();
 293                 if ( $file->allowInlineDisplay() && $file->userCan( File::DELETED_FILE, $user )
 294                         && !$file->isDeleted( File::DELETED_FILE )
 295                 ) {
 296                         $params = [
 297                                 'width' => '120',
 298                                 'height' => '120',
 299                         ];
 300                         $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
 301
 302                         $thumbnail = $file->transform( $params );
 303                         $options = [
 304                                 'alt' => $this->msg( 'filehist-thumbtext',
 305                                         $lang->userTimeAndDate( $timestamp, $user ),
 306                                         $lang->userDate( $timestamp, $user ),
 307                                         $lang->userTime( $timestamp, $user ) )->text(),
 308                                 'file-link' => true,
 309                         ];
 310
 311                         if ( !$thumbnail ) {
 312                                 return $this->msg( 'filehist-nothumb' )->escaped();
 313                         }
 314
 315                         return $thumbnail->toHtml( $options );
 316                 } else {
 317                         return $this->msg( 'filehist-nothumb' )->escaped();
 318                 }
 319         }
 320
 321         /**
 322          * @param bool $enable
 323          */
 324         protected function preventClickjacking( $enable = true ) {
 325                 $this->preventClickjacking = $enable;
 326         }
 327
 328         /**
 329          * @return bool
 330          */
 331         public function getPreventClickjacking() {
 332                 return $this->preventClickjacking;
 333         }
 334 }