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  * Entry point
  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         /**
  34          * Constructor : initialise object
  35          * Get data POSTed through the form and assign them to the object
  36          * @param $request Data posted.
  37          */
  38         function UploadForm( &$request ) {
  39                 $this->mUploadAffirm = $request->getVal( 'wpUploadAffirm' );
  40                 $this->mUploadFile = $request->getVal( 'wpUploadFile' );
  41                 $this->mUploadDescription = $request->getVal( 'wpUploadDescription');
  42                 $this->mIgnoreWarning = $request->getVal( 'wpIgnoreWarning');
  43                 $this->mUploadSaveName = $request->getVal( 'wpUploadSaveName');
  44                 $this->mUploadTempName = $request->getVal( 'wpUploadTempName');
  45                 $this->mUploadTempName = $request->getVal( 'wpUploadTempName');
  46                 $this->mUploadSize = $request->getVal( 'wpUploadSize');
  47                 $this->mUploadOldVersion = $request->getVal( 'wpUploadOldVersion');
  48                 $this->mUploadCopyStatus = $request->getVal( 'wpUploadCopyStatus');
  49                 $this->mUploadSource = $request->getVal( 'wpUploadSource');
  50                 $this->mReUpload = $request->getCheck( 'wpReUpload' );
  51                 $this->mAction = $request->getVal( 'action' );
  52                 $this->mUpload = $request->getCheck( 'wpUpload' );
  53                 $this->mSessionKey = $request->getVal( 'wpSessionKey' );
  54
  55                 /** Generate a temporary name if we don't have one yet */
  56                 if ( ! $this->mUploadTempName ) {
  57                         $this->mUploadTempName = $request->getFileTempName( 'wpUploadFile' );
  58                 }
  59
  60                 /** Get size of file */
  61                 if ( ! $this->mUploadSize ) {
  62                         $this->mUploadSize = $request->getFileSize( 'wpUploadFile' );
  63                 }
  64                 $this->mOname = $request->getFileName( 'wpUploadFile' );
  65         }
  66
  67         /**
  68          * Start doing stuff
  69          * @access public
  70          */
  71         function execute() {
  72                 global $wgUser, $wgOut;
  73                 global $wgDisableUploads;
  74
  75                 /** Show an error message if file upload is disabled */
  76                 if ( $wgDisableUploads ) {
  77                         $wgOut->addWikiText( wfMsg( 'uploaddisabled' ) );
  78                         return;
  79                 }
  80
  81                 /** Various rights checks */
  82                 if ( ( $wgUser->getID() == 0 )
  83                          OR $wgUser->isBlocked() ) {
  84                         $wgOut->errorpage( 'uploadnologin', 'uploadnologintext' );
  85                         return;
  86                 }
  87                 if ( wfReadOnly() ) {
  88                         $wgOut->readOnlyPage();
  89                         return;
  90                 }
  91
  92                 if ( $this->mReUpload ) {
  93                         $this->unsaveUploadedFile();
  94                         $this->mainUploadForm( '' );
  95                 } else if ( 'submit' == $this->mAction || $this->mUpload ) {
  96                         $this->processUpload();
  97                 } else {
  98                         $this->mainUploadForm( '' );
  99                 }
 100         }
 101
 102         /**
 103          * Really do the upload
 104          * Checks are made in SpecialUpload::execute()
 105          * @access private
 106          */
 107         function processUpload() {
 108                 global $wgUser, $wgOut, $wgLang;
 109                 global $wgUploadDirectory;
 110                 global $wgSavedFile, $wgUploadOldVersion;
 111                 global $wgUseCopyrightUpload, $wgCheckCopyrightUpload;
 112                 global $wgCheckFileExtensions, $wgStrictFileExtensions;
 113                 global $wgFileExtensions, $wgFileBlacklist, $wgUploadSizeWarning;
 114
 115                 /** When using detailed copyright, if user filled field, assume he
 116                  * confirmed the upload */
 117                 if ( $wgUseCopyrightUpload ) {
 118                         $this->mUploadAffirm = 1;
 119                         if ($wgCheckCopyrightUpload &&
 120                                 (trim ( $this->mUploadCopyStatus ) == '' || trim ( $this->mUploadSource ) == '' )) {
 121                                 $this->mUploadAffirm = 0;
 122                         }
 123                 }
 124
 125                 /** User need to confirm his upload */
 126                 if ( $this->mUploadAffirm != 1) {
 127                         $this->mainUploadForm( WfMsg( 'noaffirmation' ) );
 128                         return;
 129                 }
 130
 131                 if ( $this->mOname != '' ) {
 132                         $basename = strrchr( $this->mOname, '/' );
 133
 134                         if ( false === $basename ) { $basename = $this->mOname; }
 135                         else ( $basename = substr( $basename, 1 ) );
 136
 137
 138                         $ext = strrchr( $basename, '.' );
 139                         if ( false === $ext ) { $ext = ''; }
 140                         else { $ext = substr( $ext, 1 ); }
 141
 142                         if ( '' == $ext ) { $xl = 0; } else { $xl = strlen( $ext ) + 1; }
 143                         $partname = substr( $basename, 0, strlen( $basename ) - $xl );
 144
 145                         if ( strlen( $partname ) < 3 ) {
 146                                 $this->mainUploadForm( WfMsg( 'minlength' ) );
 147                                 return;
 148                         }
 149
 150                         $changed_name = false;
 151                         $bn = preg_replace ( "/[^".Title::legalChars()."]/", '-', $basename );
 152                         if ( 0 != strcmp( $bn, $basename ) )
 153                         {
 154                                 $changed_name = true;
 155                                 $basename = $bn;
 156                         }
 157
 158                         $nt = Title::newFromText( $basename );
 159                         if( !$nt ) {
 160                                 return $this->uploadError( wfMsg( 'illegalfilename', htmlspecialchars( $basename ) ) );
 161                         }
 162                         $nt->setNamespace( Namespace::getImage() );
 163                         $this->mUploadSaveName = $nt->getDBkey();
 164
 165                         /* Don't allow users to override the blacklist */
 166                         if( $this->checkFileExtension( $ext, $wgFileBlacklist ) ||
 167                                 ($wgStrictFileExtensions && !$this->checkFileExtension( $ext, $wgFileExtensions ) ) ) {
 168                                 return $this->uploadError( wfMsg( 'badfiletype', htmlspecialchars( $ext ) ) );
 169                         }
 170
 171                         $this->saveUploadedFile( $this->mUploadSaveName, $this->mUploadTempName );
 172                         if ( !$nt->userCanEdit() ) {
 173                                 return $this->uploadError( wfMsg( 'protectedpage' ) );
 174                         }
 175
 176                         if ( ! $this->mIgnoreWarning ) {
 177                                 $warning = '';
 178                                 if( $changed_name || 0 != strcmp( ucfirst( $basename ), $this->mUploadSaveName ) ) {
 179                                         $warning .=  '<li>'.wfMsg( 'badfilename', htmlspecialchars( $this->mUploadSaveName ) ).'</li>';
 180                                 }
 181
 182                                 if ( $wgCheckFileExtensions ) {
 183                                         if ( ! $this->checkFileExtension( $ext, $wgFileExtensions ) ) {
 184                                                 $warning .= '<li>'.wfMsg( 'badfiletype', htmlspecialchars( $ext ) ).'</li>';
 185                                         }
 186                                 }
 187                                 if ( $wgUploadSizeWarning && ( $this->mUploadSize > $wgUploadSizeWarning ) ) {
 188                                         $warning .= '<li>'.wfMsg( 'largefile' ).'</li>';
 189                                 }
 190                                 if ( $this->mUploadSize == 0 ) {
 191                                         $warning .= '<li>'.wfMsg( 'emptyfile' ).'</li>';
 192                                 }
 193                                 if( $nt->getArticleID() ) {
 194                                         $sk = $wgUser->getSkin();
 195                                         $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$this->mUploadSaveName}";
 196                                         $dlink = $sk->makeKnownLink( $dname, $dname );
 197                                         $warning .= '<li>'.wfMsg( 'fileexists', $dlink ).'</li>';
 198                                 }
 199                                 if($warning != '') return $this->uploadWarning($warning);
 200                         }
 201                 } else {
 202                         return $this->uploadError('<li>'.wfMsg( 'emptyfile' ).'</li>');
 203
 204                 }
 205                 if ( !is_null( $this->mUploadOldVersion ) ) {
 206                         $wgUploadOldVersion = $this->mUploadOldVersion;
 207                 }
 208                 wfRecordUpload( $this->mUploadSaveName, $wgUploadOldVersion, $this->mUploadSize,
 209                   $this->mUploadDescription, $this->mUploadCopyStatus, $this->mUploadSource );
 210
 211                 $sk = $wgUser->getSkin();
 212                 $ilink = $sk->makeMediaLink( $this->mUploadSaveName, Image::wfImageUrl( $this->mUploadSaveName ) );
 213                 $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$this->mUploadSaveName}";
 214                 $dlink = $sk->makeKnownLink( $dname, $dname );
 215
 216                 $wgOut->addHTML( '<h2>' . wfMsg( 'successfulupload' ) . "</h2>\n" );
 217                 $text = wfMsg( 'fileuploaded', $ilink, $dlink );
 218                 $wgOut->addHTML( "<p>{$text}\n" );
 219                 $wgOut->returnToMain( false );
 220         }
 221
 222         function checkFileExtension( $ext, $list ) {
 223                 return in_array( strtolower( $ext ), $list );
 224         }
 225
 226         function saveUploadedFile( $saveName, $tempName ) {
 227                 global $wgSavedFile, $wgUploadOldVersion;
 228                 global $wgUploadDirectory, $wgOut;
 229
 230                 $dest = wfImageDir( $saveName );
 231                 $archive = wfImageArchiveDir( $saveName );
 232                 $wgSavedFile = "{$dest}/{$saveName}";
 233
 234                 if ( is_file( $wgSavedFile ) ) {
 235                         $wgUploadOldVersion = gmdate( 'YmdHis' ) . "!{$saveName}";
 236
 237                         if ( ! rename( $wgSavedFile, "${archive}/{$wgUploadOldVersion}" ) ) {
 238                                 $wgOut->fileRenameError( $wgSavedFile,
 239                                   "${archive}/{$wgUploadOldVersion}" );
 240                                 return;
 241                         }
 242                 } else {
 243                         $wgUploadOldVersion = '';
 244                 }
 245                 if ( ! move_uploaded_file( $tempName, $wgSavedFile ) ) {
 246                         $wgOut->fileCopyError( $tempName, $wgSavedFile );
 247                 }
 248                 chmod( $wgSavedFile, 0644 );
 249         }
 250
 251         function unsaveUploadedFile() {
 252                 global $wgUploadDirectory, $wgOut, $wgRequest;
 253
 254                 $wgSavedFile = $_SESSION['wsUploadFiles'][$this->mSessionKey];
 255                 $wgUploadOldVersion = $this->mUploadOldVersion;
 256
 257                 if ( ! @unlink( $wgSavedFile ) ) {
 258                         $wgOut->fileDeleteError( $wgSavedFile );
 259                         return;
 260                 }
 261                 if ( '' != $wgUploadOldVersion ) {
 262                         $hash = md5( substr( $wgUploadOldVersion, 15 ) );
 263                         $archive = $wgUploadDirectory.'/archive/' . $hash{0} .
 264                         '/' . substr( $hash, 0, 2 );
 265
 266                         if ( ! rename( "{$archive}/{$wgUploadOldVersion}", $wgSavedFile ) ) {
 267                                 $wgOut->fileRenameError( "{$archive}/{$wgUploadOldVersion}",
 268                                   $wgSavedFile );
 269                         }
 270                 }
 271         }
 272
 273         function uploadError( $error ) {
 274                 global $wgOut;
 275                 $sub = wfMsg( 'uploadwarning' );
 276                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 277                 $wgOut->addHTML( "<h4 style='error'>{$error}</h4>\n" );
 278         }
 279
 280         function uploadWarning( $warning ) {
 281                 global $wgOut, $wgUser, $wgLang, $wgUploadDirectory, $wgRequest;
 282                 global $wgSavedFile, $wgUploadOldVersion;
 283                 global $wgUseCopyrightUpload;
 284
 285                 # wgSavedFile is stored in the session not the form, for security
 286                 $this->mSessionKey = mt_rand( 0, 0x7fffffff );
 287                 $_SESSION['wsUploadFiles'][$this->mSessionKey] = $wgSavedFile;
 288
 289                 $sub = wfMsg( 'uploadwarning' );
 290                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 291                 $wgOut->addHTML( "<ul class='warning'>{$warning}</ul><br/>\n" );
 292
 293                 $save = wfMsg( 'savefile' );
 294                 $reupload = wfMsg( 'reupload' );
 295                 $iw = wfMsg( 'ignorewarning' );
 296                 $reup = wfMsg( 'reuploaddesc' );
 297                 $titleObj = Title::makeTitle( NS_SPECIAL, 'Upload' );
 298                 $action = $titleObj->escapeLocalURL( 'action=submit' );
 299
 300                 if ( $wgUseCopyrightUpload )
 301                 {
 302                         $copyright =  "
 303         <input type='hidden' name=\"wpUploadCopyStatus\" value=\"" . htmlspecialchars( $this->mUploadCopyStatus ) . "\" />
 304         <input type='hidden' name=\"wpUploadSource\" value=\"" . htmlspecialchars( $this->mUploadSource ) . "\" />
 305         ";
 306                 } else {
 307                         $copyright = "";
 308                 }
 309
 310                 $wgOut->addHTML( "
 311         <form id=\"uploadwarning\" method=\"post\" enctype=\"multipart/form-data\"
 312         action=\"{$action}\">
 313         <input type=hidden name=\"wpUploadAffirm\" value=\"1\" />
 314         <input type=hidden name=\"wpIgnoreWarning\" value=\"1\" />
 315         <input type=hidden name=\"wpUploadDescription\" value=\"" . htmlspecialchars( $this->mUploadDescription ) . "\" />
 316         {$copyright}
 317         <input type=hidden name=\"wpUploadSaveName\" value=\"" . htmlspecialchars( $this->mUploadSaveName ) . "\" />
 318         <input type=hidden name=\"wpUploadTempName\" value=\"" . htmlspecialchars( $this->mUploadTempName ) . "\" />
 319         <input type=hidden name=\"wpUploadSize\" value=\"" . htmlspecialchars( $this->mUploadSize ) . "\" />
 320         <input type=hidden name=\"wpSessionKey\" value=\"" . htmlspecialchars( $this->mSessionKey ) . "\" />
 321         <input type=hidden name=\"wpUploadOldVersion\" value=\"" . htmlspecialchars( $wgUploadOldVersion) . "\" />
 322         <table border='0'><tr>
 323         <tr><td align='right'>
 324         <input tabindex='2' type='submit' name=\"wpUpload\" value=\"{$save}\" />
 325         </td><td align='left'>{$iw}</td></tr>
 326         <tr><td align='right'>
 327         <input tabindex='2' type='submit' name=\"wpReUpload\" value=\"{$reupload}\" />
 328         </td><td align='left'>{$reup}</td></tr></table></form>\n" );
 329         }
 330
 331         function mainUploadForm( $msg ) {
 332                 global $wgOut, $wgUser, $wgLang, $wgUploadDirectory, $wgRequest;
 333                 global $wgUseCopyrightUpload;
 334
 335                 if ( '' != $msg ) {
 336                         $sub = wfMsg( 'uploaderror' );
 337                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" .
 338                           "<h4 style='error'>{$msg}</h4>\n" );
 339                 } else {
 340                         $sub = wfMsg( 'uploadfile' );
 341                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 342                 }
 343                 $wgOut->addWikiText( wfMsg( 'uploadtext' ) );
 344                 $sk = $wgUser->getSkin();
 345
 346                 $fn = wfMsg( 'filename' );
 347                 $fd = wfMsg( 'filedesc' );
 348                 $ulb = wfMsg( 'uploadbtn' );
 349
 350                 $clink = $sk->makeKnownLink( wfMsg( 'copyrightpage' ),
 351                   wfMsg( 'copyrightpagename' ) );
 352                 $ca = wfMsg( 'affirmation', $clink );
 353                 $iw = wfMsg( 'ignorewarning' );
 354
 355                 $titleObj = Title::makeTitle( NS_SPECIAL, 'Upload' );
 356                 $action = $titleObj->escapeLocalURL();
 357
 358                 $source = "
 359         <td align='right'>
 360         <input tabindex='3' type='checkbox' name=\"wpUploadAffirm\" value=\"1\" id=\"wpUploadAffirm\" />
 361         </td><td align='left'><label for=\"wpUploadAffirm\">{$ca}</label></td>
 362         " ;
 363                 if ( $wgUseCopyrightUpload )
 364                   {
 365                         $source = "
 366         <td align='right' nowrap='nowrap'>" . wfMsg ( 'filestatus' ) . ":</td>
 367         <td><input tabindex='3' type='text' name=\"wpUploadCopyStatus\" value=\"" .
 368         htmlspecialchars($this->mUploadCopyStatus). "\" size='40' /></td>
 369         </tr><tr>
 370         <td align='right'>". wfMsg ( 'filesource' ) . ":</td>
 371         <td><input tabindex='4' type='text' name=\"wpUploadSource\" value=\"" .
 372         htmlspecialchars($this->mUploadSource). "\" size='40' /></td>
 373         " ;
 374                   }
 375
 376                 $wgOut->addHTML( "
 377         <form id=\"upload\" method=\"post\" enctype=\"multipart/form-data\"
 378         action=\"{$action}\">
 379         <table border='0'><tr>
 380         <td align='right'>{$fn}:</td><td align='left'>
 381         <input tabindex='1' type='file' name=\"wpUploadFile\" value=\""
 382           . htmlspecialchars( $this->mUploadFile ) . "\" size='40' />
 383         </td></tr><tr>
 384         <td align='right'>{$fd}:</td><td align='left'>
 385         <input tabindex='2' type='text' name=\"wpUploadDescription\" value=\""
 386           . htmlspecialchars( $this->mUploadDescription ) . "\" size='40' />
 387         </td></tr><tr>
 388         {$source}
 389         </tr>
 390         <tr><td></td><td align='left'>
 391         <input tabindex='5' type='submit' name=\"wpUpload\" value=\"{$ulb}\" />
 392         </td></tr></table></form>\n" );
 393         }
 394 }
 395 ?>