includes/ImagePage.php

   1 <?
   2
   3 /*
   4         Special handling for image description pages
   5 */
   6
   7 class ImagePage extends Article {
   8
   9         function view() {
  10                 if ( Namespace::getImage() == $this->mTitle->getNamespace() ) {
  11                         $this->openShowImage();
  12                 }
  13
  14                 Article::view();
  15
  16                 # If the article we've just shown is in the "Image" namespace,
  17                 # follow it with the history list and link list for the image
  18                 # it describes.
  19
  20                 if ( Namespace::getImage() == $this->mTitle->getNamespace() ) {
  21                         $this->closeShowImage();
  22                         $this->imageHistory();
  23                         $this->imageLinks();
  24                 }
  25         }
  26
  27         function openShowImage()
  28         {
  29                 global $wgOut, $wgUser;
  30                 $name = $this->mTitle->getText();
  31                 $path = wfImagePath( $name );
  32                 $url   = wfImageUrl( $name );
  33
  34                 if ( file_exists( $path ) ) {
  35                         list($width, $height, $type, $attr) = getimagesize( $path );
  36
  37                         $sk = $wgUser->getSkin();
  38
  39                         if ( $type != "" ) {
  40                                 # image
  41                                 $s .= "<center><img src=\"{$url}\" width=\"{$width}\" height=\"{$height}\"></center>";
  42                         } else {
  43                                 $s .= "<center>".$sk->makeMediaLink($name,"")."</center>";
  44                         }
  45                         $wgOut->AddHTML( $s );
  46                 }
  47         }
  48
  49         function closeShowImage()
  50         {
  51                 global $wgOut, $wgUser;
  52                 $sk = $wgUser->getSkin();
  53                 $s = "</center>";
  54                 $wgOut->AddHTML( $s );
  55         }
  56
  57         # If the page we've just displayed is in the "Image" namespace,
  58         # we follow it with an upload history of the image and its usage.
  59
  60         function imageHistory()
  61         {
  62                 global $wgUser, $wgOut, $wgLang;
  63                 $fname = "Article::imageHistory";
  64
  65                 $sql = "SELECT img_size,img_description,img_user," .
  66                   "img_user_text,img_timestamp FROM image WHERE " .
  67                   "img_name='" . wfStrencode( $this->mTitle->getDBkey() ) . "'";
  68                 $res = wfQuery( $sql, DB_READ, $fname );
  69
  70                 if ( 0 == wfNumRows( $res ) ) { return; }
  71
  72                 $sk = $wgUser->getSkin();
  73                 $s = $sk->beginImageHistoryList();
  74
  75                 $line = wfFetchObject( $res );
  76                 $s .= $sk->imageHistoryLine( true, $line->img_timestamp,
  77                   $this->mTitle->getText(),  $line->img_user,
  78                   $line->img_user_text, $line->img_size, $line->img_description );
  79
  80                 $sql = "SELECT oi_size,oi_description,oi_user," .
  81                   "oi_user_text,oi_timestamp,oi_archive_name FROM oldimage WHERE " .
  82                   "oi_name='" . wfStrencode( $this->mTitle->getDBkey() ) . "' " .
  83                   "ORDER BY oi_timestamp DESC";
  84                 $res = wfQuery( $sql, DB_READ, $fname );
  85
  86                 while ( $line = wfFetchObject( $res ) ) {
  87                         $s .= $sk->imageHistoryLine( false, $line->oi_timestamp,
  88                           $line->oi_archive_name, $line->oi_user,
  89                           $line->oi_user_text, $line->oi_size, $line->oi_description );
  90                 }
  91                 $s .= $sk->endImageHistoryList();
  92                 $wgOut->addHTML( $s );
  93         }
  94
  95         function imageLinks()
  96         {
  97                 global $wgUser, $wgOut;
  98
  99                 $wgOut->addHTML( "<h2>" . wfMsg( "imagelinks" ) . "</h2>\n" );
 100
 101                 $sql = "SELECT il_from FROM imagelinks WHERE il_to='" .
 102                   wfStrencode( $this->mTitle->getDBkey() ) . "'";
 103                 $res = wfQuery( $sql, DB_READ, "Article::imageLinks" );
 104
 105                 if ( 0 == wfNumRows( $res ) ) {
 106                         $wgOut->addHtml( "<p>" . wfMsg( "nolinkstoimage" ) . "\n" );
 107                         return;
 108                 }
 109                 $wgOut->addHTML( "<p>" . wfMsg( "linkstoimage" ) .  "\n<ul>" );
 110
 111                 $sk = $wgUser->getSkin();
 112                 while ( $s = wfFetchObject( $res ) ) {
 113                         $name = $s->il_from;
 114                         $link = $sk->makeKnownLink( $name, "" );
 115                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 116                 }
 117                 $wgOut->addHTML( "</ul>\n" );
 118         }
 119
 120         function delete()
 121         {
 122                 global $wgUser, $wgOut;
 123                 global $wpConfirm, $wpReason, $image, $oldimage;
 124
 125                 # Anybody can delete old revisions of images; only sysops
 126                 # can delete articles and current images
 127
 128                 if ( !$wgUser->isSysop() ) {
 129                         $wgOut->sysopRequired();
 130                         return;
 131                 }
 132                 if ( wfReadOnly() ) {
 133                         $wgOut->readOnlyPage();
 134                         return;
 135                 }
 136
 137                 # Better double-check that it hasn't been deleted yet!
 138                 $wgOut->setPagetitle( wfMsg( "confirmdelete" ) );
 139                 if ( $image ) {
 140                         if ( "" == trim( $image ) ) {
 141                                 $wgOut->fatalError( wfMsg( "cannotdelete" ) );
 142                                 return;
 143                         }
 144                 }
 145
 146                 # Likewise, deleting old images doesn't require confirmation
 147                 if ( $oldimage || 1 == $wpConfirm ) {
 148                         $this->doDelete();
 149                         return;
 150                 }
 151
 152                 if ( $image ) {
 153                         $q = "&image={$image}";
 154                 } else if ( $oldimage ) {
 155                         $q = "&oldimage={$oldimage}";
 156                 }
 157                 return $this->confirmDelete( $q );
 158         }
 159
 160         function doDelete()
 161         {
 162                 global $wgOut, $wgUser, $wgLang;
 163                 global $image, $oldimage, $wpReason;
 164                 $fname = "Article::doDelete";
 165
 166                 if ( $image ) {
 167                         $dest = wfImageDir( $image );
 168                         $archive = wfImageDir( $image );
 169                         if ( ! unlink( "{$dest}/{$image}" ) ) {
 170                                 $wgOut->fileDeleteError( "{$dest}/{$image}" );
 171                                 return;
 172                         }
 173                         $sql = "DELETE FROM image WHERE img_name='" .
 174                           wfStrencode( $image ) . "'";
 175                         wfQuery( $sql, DB_WRITE, $fname );
 176
 177                         $sql = "SELECT oi_archive_name FROM oldimage WHERE oi_name='" .
 178                           wfStrencode( $image ) . "'";
 179                         $res = wfQuery( $sql, DB_READ, $fname );
 180
 181                         while ( $s = wfFetchObject( $res ) ) {
 182                                 $this->doDeleteOldImage( $s->oi_archive_name );
 183                         }
 184                         $sql = "DELETE FROM oldimage WHERE oi_name='" .
 185                           wfStrencode( $image ) . "'";
 186                         wfQuery( $sql, DB_WRITE, $fname );
 187
 188                         # Image itself is now gone, and database is cleaned.
 189                         # Now we remove the image description page.
 190
 191                         $nt = Title::newFromText( $wgLang->getNsText( Namespace::getImage() ) . ":" . $image );
 192                         $this->doDeleteArticle( $nt );
 193
 194                         $deleted = $image;
 195                 } else if ( $oldimage ) {
 196                         $this->doDeleteOldImage( $oldimage );
 197                         $sql = "DELETE FROM oldimage WHERE oi_archive_name='" .
 198                           wfStrencode( $oldimage ) . "'";
 199                         wfQuery( $sql, DB_WRITE, $fname );
 200
 201                         $deleted = $oldimage;
 202                 } else {
 203                         $this->doDeleteArticle( $this->mTitle );
 204                         $deleted = $this->mTitle->getPrefixedText();
 205                 }
 206                 $wgOut->setPagetitle( wfMsg( "actioncomplete" ) );
 207                 $wgOut->setRobotpolicy( "noindex,nofollow" );
 208
 209                 $sk = $wgUser->getSkin();
 210                 $loglink = $sk->makeKnownLink( $wgLang->getNsText(
 211                   Namespace::getWikipedia() ) .
 212                   ":" . wfMsg( "dellogpage" ), wfMsg( "deletionlog" ) );
 213
 214                 $text = wfMsg( "deletedtext", $deleted, $loglink );
 215
 216                 $wgOut->addHTML( "<p>" . $text );
 217                 $wgOut->returnToMain( false );
 218         }
 219
 220         function doDeleteOldImage( $oldimage )
 221         {
 222                 global $wgOut;
 223
 224                 $name = substr( $oldimage, 15 );
 225                 $archive = wfImageArchiveDir( $name );
 226                 if ( ! unlink( "{$archive}/{$oldimage}" ) ) {
 227                         $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
 228                 }
 229         }
 230
 231         function revert()
 232         {
 233                 global $wgOut;
 234                 global $oldimage;
 235
 236                 if ( strlen( $oldimage ) < 16 ) {
 237                         $wgOut->unexpectedValueError( "oldimage", $oldimage );
 238                         return;
 239                 }
 240                 if ( wfReadOnly() ) {
 241                         $wgOut->readOnlyPage();
 242                         return;
 243                 }
 244                 $name = substr( $oldimage, 15 );
 245
 246                 $dest = wfImageDir( $name );
 247                 $archive = wfImageArchiveDir( $name );
 248                 $curfile = "{$dest}/{$name}";
 249
 250                 if ( ! is_file( $curfile ) ) {
 251                         $wgOut->fileNotFoundError( $curfile );
 252                         return;
 253                 }
 254                 $oldver = wfTimestampNow() . "!{$name}";
 255                 $size = wfGetSQL( "oldimage", "oi_size", "oi_archive_name='" .
 256                   wfStrencode( $oldimage ) . "'" );
 257
 258                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
 259                         $wgOut->fileRenameError( $curfile, "${archive}/{$oldver}" );
 260                         return;
 261                 }
 262                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
 263                         $wgOut->fileCopyError( "${archive}/{$oldimage}", $curfile );
 264                 }
 265                 wfRecordUpload( $name, $oldver, $size, wfMsg( "reverted" ) );
 266
 267                 $wgOut->setPagetitle( wfMsg( "actioncomplete" ) );
 268                 $wgOut->setRobotpolicy( "noindex,nofollow" );
 269                 $wgOut->addHTML( wfMsg( "imagereverted" ) );
 270                 $wgOut->returnToMain( false );
 271         }
 272 }
 273
 274 ?>