includes/SpecialUpload.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once( "Image.php" );
  12
  13 /**
  14  * Constructor
  15  */
  16 function wfSpecialUpload() {
  17         global $wgRequest;
  18         $form = new UploadForm( $wgRequest );
  19         $form->execute();
  20 }
  21
  22 /**
  23  *
  24  * @package MediaWiki
  25  * @subpackage SpecialPage
  26  */
  27 class UploadForm {
  28         var $mUploadAffirm, $mUploadFile, $mUploadDescription, $mIgnoreWarning;
  29         var $mUploadSaveName, $mUploadTempName, $mUploadSize, $mUploadOldVersion;
  30         var $mUploadCopyStatus, $mUploadSource, $mReUpload, $mAction, $mUpload;
  31         var $mOname, $mSessionKey;
  32
  33         function UploadForm( &$request ) {
  34                 $this->mUploadAffirm = $request->getVal( 'wpUploadAffirm' );
  35                 $this->mUploadFile = $request->getVal( 'wpUploadFile' );
  36                 $this->mUploadDescription = $request->getVal( 'wpUploadDescription');
  37                 $this->mIgnoreWarning = $request->getVal( 'wpIgnoreWarning');
  38                 $this->mUploadSaveName = $request->getVal( 'wpUploadSaveName');
  39                 $this->mUploadTempName = $request->getVal( 'wpUploadTempName');
  40                 $this->mUploadTempName = $request->getVal( 'wpUploadTempName');
  41                 $this->mUploadSize = $request->getVal( 'wpUploadSize');
  42                 $this->mUploadOldVersion = $request->getVal( 'wpUploadOldVersion');
  43                 $this->mUploadCopyStatus = $request->getVal( 'wpUploadCopyStatus');
  44                 $this->mUploadSource = $request->getVal( 'wpUploadSource');
  45                 $this->mReUpload = $request->getCheck( 'wpReUpload' );
  46                 $this->mAction = $request->getVal( 'action' );
  47                 $this->mUpload = $request->getCheck( 'wpUpload' );
  48                 $this->mSessionKey = $request->getVal( 'wpSessionKey' );
  49
  50                 if ( ! $this->mUploadTempName ) {
  51                         $this->mUploadTempName = $request->getFileTempName( 'wpUploadFile' );
  52                 }
  53                 if ( ! $this->mUploadSize ) {
  54                         $this->mUploadSize = $request->getFileSize( 'wpUploadFile' );
  55                 }
  56                 $this->mOname = $request->getFileName( 'wpUploadFile' );
  57
  58         }
  59
  60         function execute() {
  61                 global $wgUser, $wgOut;
  62                 global $wgDisableUploads;
  63
  64                 if ( $wgDisableUploads ) {
  65                         $wgOut->addWikiText( wfMsg( "uploaddisabled" ) );
  66                         return;
  67                 }
  68                 if ( ( 0 == $wgUser->getID() )
  69                         or $wgUser->isBlocked() ) {
  70                         $wgOut->errorpage( "uploadnologin", "uploadnologintext" );
  71                         return;
  72                 }
  73                 if ( wfReadOnly() ) {
  74                         $wgOut->readOnlyPage();
  75                         return;
  76                 }
  77                 if ( $this->mReUpload ) {
  78                         $this->unsaveUploadedFile();
  79                         $this->mainUploadForm( "" );
  80                 } else if ( "submit" == $this->mAction || $this->mUpload ) {
  81                         $this->processUpload();
  82                 } else {
  83                         $this->mainUploadForm( "" );
  84                 }
  85         }
  86
  87
  88         function processUpload() {
  89                 global $wgUser, $wgOut, $wgLang;
  90                 global $wgUploadDirectory;
  91                 global $wgSavedFile, $wgUploadOldVersion;
  92                 global $wgUseCopyrightUpload, $wgCheckCopyrightUpload;
  93                 global $wgCheckFileExtensions, $wgStrictFileExtensions;
  94                 global $wgFileExtensions, $wgFileBlacklist, $wgUploadSizeWarning;
  95
  96                 if ( $wgUseCopyrightUpload ) {
  97                         $this->mUploadAffirm = 1;
  98                         if ($wgCheckCopyrightUpload &&
  99                                 (trim ( $this->mUploadCopyStatus ) == "" || trim ( $this->mUploadSource ) == "" )) {
 100                                 $this->mUploadAffirm = 0;
 101                         }
 102                 }
 103
 104                 if ( 1 != $this->mUploadAffirm ) {
 105                         $this->mainUploadForm( WfMsg( "noaffirmation" ) );
 106                         return;
 107                 }
 108
 109                 if ( "" != $this->mOname ) {
 110                         $basename = strrchr( $this->mOname, "/" );
 111
 112                         if ( false === $basename ) { $basename = $this->mOname; }
 113                         else ( $basename = substr( $basename, 1 ) );
 114
 115
 116                         $ext = strrchr( $basename, "." );
 117                         if ( false === $ext ) { $ext = ""; }
 118                         else { $ext = substr( $ext, 1 ); }
 119
 120                         if ( "" == $ext ) { $xl = 0; } else { $xl = strlen( $ext ) + 1; }
 121                         $partname = substr( $basename, 0, strlen( $basename ) - $xl );
 122
 123                         if ( strlen( $partname ) < 3 ) {
 124                                 $this->mainUploadForm( WfMsg( "minlength" ) );
 125                                 return;
 126                         }
 127
 128                         $changed_name = false;
 129                         $bn = preg_replace ( "/[^".Title::legalChars()."]/", '-', $basename );
 130                         if ( 0 != strcmp( $bn, $basename ) )
 131                         {
 132                                 $changed_name = true;
 133                                 $basename = $bn;
 134                         }
 135
 136
 137                         $nt = Title::newFromText( $basename );
 138                         if( !$nt ) {
 139                                 return $this->uploadError( wfMsg( "illegalfilename", htmlspecialchars( $basename ) ) );
 140                         }
 141                         $nt->setNamespace( Namespace::getImage() );
 142                         $this->mUploadSaveName = $nt->getDBkey();
 143
 144                         /* Don't allow users to override the blacklist */
 145                         if( $this->checkFileExtension( $ext, $wgFileBlacklist ) ||
 146                                 ($wgStrictFileExtensions && !$this->checkFileExtension( $ext, $wgFileExtensions ) ) ) {
 147                                 return $this->uploadError( wfMsg( "badfiletype", htmlspecialchars( $ext ) ) );
 148                         }
 149
 150                         $this->saveUploadedFile( $this->mUploadSaveName, $this->mUploadTempName );
 151                         if ( !$nt->userCanEdit() ) {
 152                                 return $this->uploadError( wfMsg( "protectedpage" ) );
 153                         }
 154
 155                         if ( ! $this->mIgnoreWarning ) {
 156                                 $warning = '';
 157                                 if( $changed_name || 0 != strcmp( ucfirst( $basename ), $this->mUploadSaveName ) ) {
 158                                         $warning .=  '<li>'.wfMsg( "badfilename", htmlspecialchars( $this->mUploadSaveName ) ).'</li>';
 159                                 }
 160
 161                                 if ( $wgCheckFileExtensions ) {
 162                                         if ( ! $this->checkFileExtension( $ext, $wgFileExtensions ) ) {
 163                                                 $warning .= '<li>'.wfMsg( "badfiletype", htmlspecialchars( $ext ) ).'</li>';
 164                                         }
 165                                 }
 166                                 if ( $wgUploadSizeWarning && ( $this->mUploadSize > $wgUploadSizeWarning ) ) {
 167                                         $warning .= '<li>'.wfMsg( "largefile" ).'</li>';
 168                                 }
 169                                 if ( $this->mUploadSize == 0 ) {
 170                                         $warning .= '<li>'.wfMsg( "emptyfile" ).'</li>';
 171                                 }
 172                                 if( $nt->getArticleID() ) {
 173                                         $sk = $wgUser->getSkin();
 174                                         $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$this->mUploadSaveName}";
 175                                         $dlink = $sk->makeKnownLink( $dname, $dname );
 176                                         $warning .= '<li>'.wfMsg( "fileexists", $dlink ).'</li>';
 177                                 }
 178                                 if($warning != '') return $this->uploadWarning($warning);
 179                         }
 180                 }
 181                 if ( !is_null( $this->mUploadOldVersion ) ) {
 182                         $wgUploadOldVersion = $this->mUploadOldVersion;
 183                 }
 184                 wfRecordUpload( $this->mUploadSaveName, $wgUploadOldVersion, $this->mUploadSize,
 185                   $this->mUploadDescription, $this->mUploadCopyStatus, $this->mUploadSource );
 186
 187                 $sk = $wgUser->getSkin();
 188                 $ilink = $sk->makeMediaLink( $this->mUploadSaveName, Image::wfImageUrl( $this->mUploadSaveName ) );
 189                 $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$this->mUploadSaveName}";
 190                 $dlink = $sk->makeKnownLink( $dname, $dname );
 191
 192                 $wgOut->addHTML( "<h2>" . wfMsg( "successfulupload" ) . "</h2>\n" );
 193                 $text = wfMsg( "fileuploaded", $ilink, $dlink );
 194                 $wgOut->addHTML( "<p>{$text}\n" );
 195                 $wgOut->returnToMain( false );
 196         }
 197
 198         function checkFileExtension( $ext, $list ) {
 199                 return in_array( strtolower( $ext ), $list );
 200         }
 201
 202         function saveUploadedFile( $saveName, $tempName ) {
 203                 global $wgSavedFile, $wgUploadOldVersion;
 204                 global $wgUploadDirectory, $wgOut;
 205
 206                 $dest = wfImageDir( $saveName );
 207                 $archive = wfImageArchiveDir( $saveName );
 208                 $wgSavedFile = "{$dest}/{$saveName}";
 209
 210                 if ( is_file( $wgSavedFile ) ) {
 211                         $wgUploadOldVersion = gmdate( "YmdHis" ) . "!{$saveName}";
 212
 213                         if ( ! rename( $wgSavedFile, "${archive}/{$wgUploadOldVersion}" ) ) {
 214                                 $wgOut->fileRenameError( $wgSavedFile,
 215                                   "${archive}/{$wgUploadOldVersion}" );
 216                                 return;
 217                         }
 218                 } else {
 219                         $wgUploadOldVersion = "";
 220                 }
 221                 if ( ! move_uploaded_file( $tempName, $wgSavedFile ) ) {
 222                         $wgOut->fileCopyError( $tempName, $wgSavedFile );
 223                 }
 224                 chmod( $wgSavedFile, 0644 );
 225         }
 226
 227         function unsaveUploadedFile() {
 228                 global $wgUploadDirectory, $wgOut, $wgRequest;
 229
 230                 $wgSavedFile = $_SESSION['wsUploadFiles'][$this->mSessionKey];
 231                 $wgUploadOldVersion = $this->mUploadOldVersion;
 232
 233                 if ( ! @unlink( $wgSavedFile ) ) {
 234                         $wgOut->fileDeleteError( $wgSavedFile );
 235                         return;
 236                 }
 237                 if ( "" != $wgUploadOldVersion ) {
 238                         $hash = md5( substr( $wgUploadOldVersion, 15 ) );
 239                         $archive = "{$wgUploadDirectory}/archive/" . $hash{0} .
 240                         "/" . substr( $hash, 0, 2 );
 241
 242                         if ( ! rename( "{$archive}/{$wgUploadOldVersion}", $wgSavedFile ) ) {
 243                                 $wgOut->fileRenameError( "{$archive}/{$wgUploadOldVersion}",
 244                                   $wgSavedFile );
 245                         }
 246                 }
 247         }
 248
 249         function uploadError( $error ) {
 250                 global $wgOut;
 251                 $sub = wfMsg( "uploadwarning" );
 252                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 253                 $wgOut->addHTML( "<h4 style='error'>{$error}</h4>\n" );
 254         }
 255
 256         function uploadWarning( $warning ) {
 257                 global $wgOut, $wgUser, $wgLang, $wgUploadDirectory, $wgRequest;
 258                 global $wgSavedFile, $wgUploadOldVersion;
 259                 global $wgUseCopyrightUpload;
 260
 261                 # wgSavedFile is stored in the session not the form, for security
 262                 $this->mSessionKey = mt_rand( 0, 0x7fffffff );
 263                 $_SESSION['wsUploadFiles'][$this->mSessionKey] = $wgSavedFile;
 264
 265                 $sub = wfMsg( "uploadwarning" );
 266                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 267                 $wgOut->addHTML( "<ul class='warning'>{$warning}</ul><br/>\n" );
 268
 269                 $save = wfMsg( "savefile" );
 270                 $reupload = wfMsg( "reupload" );
 271                 $iw = wfMsg( "ignorewarning" );
 272                 $reup = wfMsg( "reuploaddesc" );
 273                 $titleObj = Title::makeTitle( NS_SPECIAL, "Upload" );
 274                 $action = $titleObj->escapeLocalURL( "action=submit" );
 275
 276                 if ( $wgUseCopyrightUpload )
 277                 {
 278                         $copyright =  "
 279         <input type='hidden' name=\"wpUploadCopyStatus\" value=\"" . htmlspecialchars( $this->mUploadCopyStatus ) . "\" />
 280         <input type='hidden' name=\"wpUploadSource\" value=\"" . htmlspecialchars( $this->mUploadSource ) . "\" />
 281         ";
 282                 } else {
 283                         $copyright = "";
 284                 }
 285
 286                 $wgOut->addHTML( "
 287         <form id=\"uploadwarning\" method=\"post\" enctype=\"multipart/form-data\"
 288         action=\"{$action}\">
 289         <input type=hidden name=\"wpUploadAffirm\" value=\"1\" />
 290         <input type=hidden name=\"wpIgnoreWarning\" value=\"1\" />
 291         <input type=hidden name=\"wpUploadDescription\" value=\"" . htmlspecialchars( $this->mUploadDescription ) . "\" />
 292         {$copyright}
 293         <input type=hidden name=\"wpUploadSaveName\" value=\"" . htmlspecialchars( $this->mUploadSaveName ) . "\" />
 294         <input type=hidden name=\"wpUploadTempName\" value=\"" . htmlspecialchars( $this->mUploadTempName ) . "\" />
 295         <input type=hidden name=\"wpUploadSize\" value=\"" . htmlspecialchars( $this->mUploadSize ) . "\" />
 296         <input type=hidden name=\"wpSessionKey\" value=\"" . htmlspecialchars( $this->mSessionKey ) . "\" />
 297         <input type=hidden name=\"wpUploadOldVersion\" value=\"" . htmlspecialchars( $wgUploadOldVersion) . "\" />
 298         <table border='0'><tr>
 299         <tr><td align='right'>
 300         <input tabindex='2' type='submit' name=\"wpUpload\" value=\"{$save}\" />
 301         </td><td align='left'>{$iw}</td></tr>
 302         <tr><td align='right'>
 303         <input tabindex='2' type='submit' name=\"wpReUpload\" value=\"{$reupload}\" />
 304         </td><td align='left'>{$reup}</td></tr></table></form>\n" );
 305         }
 306
 307         function mainUploadForm( $msg ) {
 308                 global $wgOut, $wgUser, $wgLang, $wgUploadDirectory, $wgRequest;
 309                 global $wgUseCopyrightUpload;
 310
 311                 if ( "" != $msg ) {
 312                         $sub = wfMsg( "uploaderror" );
 313                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" .
 314                           "<h4 style='error'>{$msg}</h4>\n" );
 315                 } else {
 316                         $sub = wfMsg( "uploadfile" );
 317                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 318                 }
 319                 $wgOut->addWikiText( wfMsg( "uploadtext" ) );
 320                 $sk = $wgUser->getSkin();
 321
 322                 $fn = wfMsg( "filename" );
 323                 $fd = wfMsg( "filedesc" );
 324                 $ulb = wfMsg( "uploadbtn" );
 325
 326                 $clink = $sk->makeKnownLink( wfMsg( "copyrightpage" ),
 327                   wfMsg( "copyrightpagename" ) );
 328                 $ca = wfMsg( "affirmation", $clink );
 329                 $iw = wfMsg( "ignorewarning" );
 330
 331                 $titleObj = Title::makeTitle( NS_SPECIAL, "Upload" );
 332                 $action = $titleObj->escapeLocalURL();
 333
 334                 $source = "
 335         <td align='right'>
 336         <input tabindex='3' type='checkbox' name=\"wpUploadAffirm\" value=\"1\" id=\"wpUploadAffirm\" />
 337         </td><td align='left'><label for=\"wpUploadAffirm\">{$ca}</label></td>
 338         " ;
 339                 if ( $wgUseCopyrightUpload )
 340                   {
 341                         $source = "
 342         <td align='right' nowrap='nowrap'>" . wfMsg ( "filestatus" ) . ":</td>
 343         <td><input tabindex='3' type='text' name=\"wpUploadCopyStatus\" value=\"" .
 344         htmlspecialchars($this->mUploadCopyStatus). "\" size='40' /></td>
 345         </tr><tr>
 346         <td align='right'>". wfMsg ( "filesource" ) . ":</td>
 347         <td><input tabindex='4' type='text' name=\"wpUploadSource\" value=\"" .
 348         htmlspecialchars($this->mUploadSource). "\" size='40' /></td>
 349         " ;
 350                   }
 351
 352                 $wgOut->addHTML( "
 353         <form id=\"upload\" method=\"post\" enctype=\"multipart/form-data\"
 354         action=\"{$action}\">
 355         <table border='0'><tr>
 356         <td align='right'>{$fn}:</td><td align='left'>
 357         <input tabindex='1' type='file' name=\"wpUploadFile\" value=\""
 358           . htmlspecialchars( $this->mUploadFile ) . "\" size='40' />
 359         </td></tr><tr>
 360         <td align='right'>{$fd}:</td><td align='left'>
 361         <input tabindex='2' type='text' name=\"wpUploadDescription\" value=\""
 362           . htmlspecialchars( $this->mUploadDescription ) . "\" size='40' />
 363         </td></tr><tr>
 364         {$source}
 365         </tr>
 366         <tr><td></td><td align='left'>
 367         <input tabindex='5' type='submit' name=\"wpUpload\" value=\"{$ulb}\" />
 368         </td></tr></table></form>\n" );
 369         }
 370 }
 371 ?>