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