includes/specials/SpecialUpload.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup SpecialPage
   5  */
   6
   7
   8 /**
   9  * Entry point
  10  */
  11 function wfSpecialUpload() {
  12         global $wgRequest;
  13         $form = new UploadForm( $wgRequest );
  14         $form->execute();
  15 }
  16
  17 /**
  18  * implements Special:Upload
  19  * @ingroup SpecialPage
  20  */
  21 class UploadForm {
  22         const SUCCESS = 0;
  23         const BEFORE_PROCESSING = 1;
  24         const LARGE_FILE_SERVER = 2;
  25         const EMPTY_FILE = 3;
  26         const MIN_LENGHT_PARTNAME = 4;
  27         const ILLEGAL_FILENAME = 5;
  28         const PROTECTED_PAGE = 6;
  29         const OVERWRITE_EXISTING_FILE = 7;
  30         const FILETYPE_MISSING = 8;
  31         const FILETYPE_BADTYPE = 9;
  32         const VERIFICATION_ERROR = 10;
  33         const UPLOAD_VERIFICATION_ERROR = 11;
  34         const UPLOAD_WARNING = 12;
  35         const INTERNAL_ERROR = 13;
  36
  37         /**#@+
  38          * @access private
  39          */
  40         var $mComment, $mLicense, $mIgnoreWarning, $mCurlError;
  41         var $mDestName, $mTempPath, $mFileSize, $mFileProps;
  42         var $mCopyrightStatus, $mCopyrightSource, $mReUpload, $mAction, $mUploadClicked;
  43         var $mSrcName, $mSessionKey, $mStashed, $mDesiredDestName, $mRemoveTempFile, $mSourceType;
  44         var $mDestWarningAck, $mCurlDestHandle;
  45         var $mLocalFile;
  46
  47         # Placeholders for text injection by hooks (must be HTML)
  48         # extensions should take care to _append_ to the present value
  49         var $uploadFormTextTop;
  50         var $uploadFormTextAfterSummary;
  51
  52         const SESSION_VERSION = 1;
  53         /**#@-*/
  54
  55         /**
  56          * Constructor : initialise object
  57          * Get data POSTed through the form and assign them to the object
  58          * @param $request Data posted.
  59          */
  60         function UploadForm( &$request ) {
  61                 global $wgAllowCopyUploads;
  62                 $this->mDesiredDestName   = $request->getText( 'wpDestFile' );
  63                 $this->mIgnoreWarning     = $request->getCheck( 'wpIgnoreWarning' );
  64                 $this->mComment           = $request->getText( 'wpUploadDescription' );
  65
  66                 if( !$request->wasPosted() ) {
  67                         # GET requests just give the main form; no data except destination
  68                         # filename and description
  69                         return;
  70                 }
  71
  72                 # Placeholders for text injection by hooks (empty per default)
  73                 $this->uploadFormTextTop = "";
  74                 $this->uploadFormTextAfterSummary = "";
  75
  76                 $this->mReUpload          = $request->getCheck( 'wpReUpload' );
  77                 $this->mUploadClicked     = $request->getCheck( 'wpUpload' );
  78
  79                 $this->mLicense           = $request->getText( 'wpLicense' );
  80                 $this->mCopyrightStatus   = $request->getText( 'wpUploadCopyStatus' );
  81                 $this->mCopyrightSource   = $request->getText( 'wpUploadSource' );
  82                 $this->mWatchthis         = $request->getBool( 'wpWatchthis' );
  83                 $this->mSourceType        = $request->getText( 'wpSourceType' );
  84                 $this->mDestWarningAck    = $request->getText( 'wpDestFileWarningAck' );
  85
  86                 $this->mAction            = $request->getVal( 'action' );
  87
  88                 $this->mSessionKey        = $request->getInt( 'wpSessionKey' );
  89                 if( !empty( $this->mSessionKey ) &&
  90                         isset( $_SESSION['wsUploadData'][$this->mSessionKey]['version'] ) &&
  91                         $_SESSION['wsUploadData'][$this->mSessionKey]['version'] == self::SESSION_VERSION ) {
  92                         /**
  93                          * Confirming a temporarily stashed upload.
  94                          * We don't want path names to be forged, so we keep
  95                          * them in the session on the server and just give
  96                          * an opaque key to the user agent.
  97                          */
  98                         $data = $_SESSION['wsUploadData'][$this->mSessionKey];
  99                         $this->mTempPath         = $data['mTempPath'];
 100                         $this->mFileSize         = $data['mFileSize'];
 101                         $this->mSrcName          = $data['mSrcName'];
 102                         $this->mFileProps        = $data['mFileProps'];
 103                         $this->mCurlError        = 0/*UPLOAD_ERR_OK*/;
 104                         $this->mStashed          = true;
 105                         $this->mRemoveTempFile   = false;
 106                 } else {
 107                         /**
 108                          *Check for a newly uploaded file.
 109                          */
 110                         if( $wgAllowCopyUploads && $this->mSourceType == 'web' ) {
 111                                 $this->initializeFromUrl( $request );
 112                         } else {
 113                                 $this->initializeFromUpload( $request );
 114                         }
 115                 }
 116         }
 117
 118         /**
 119          * Initialize the uploaded file from PHP data
 120          * @access private
 121          */
 122         function initializeFromUpload( $request ) {
 123                 $this->mTempPath       = $request->getFileTempName( 'wpUploadFile' );
 124                 $this->mFileSize       = $request->getFileSize( 'wpUploadFile' );
 125                 $this->mSrcName        = $request->getFileName( 'wpUploadFile' );
 126                 $this->mCurlError      = $request->getUploadError( 'wpUploadFile' );
 127                 $this->mSessionKey     = false;
 128                 $this->mStashed        = false;
 129                 $this->mRemoveTempFile = false; // PHP will handle this
 130         }
 131
 132         /**
 133          * Copy a web file to a temporary file
 134          * @access private
 135          */
 136         function initializeFromUrl( $request ) {
 137                 global $wgTmpDirectory;
 138                 $url = $request->getText( 'wpUploadFileURL' );
 139                 $local_file = tempnam( $wgTmpDirectory, 'WEBUPLOAD' );
 140
 141                 $this->mTempPath       = $local_file;
 142                 $this->mFileSize       = 0; # Will be set by curlCopy
 143                 $this->mCurlError      = $this->curlCopy( $url, $local_file );
 144                 $pathParts             = explode( '/', $url );
 145                 $this->mSrcName        = array_pop( $pathParts );
 146                 $this->mSessionKey     = false;
 147                 $this->mStashed        = false;
 148
 149                 // PHP won't auto-cleanup the file
 150                 $this->mRemoveTempFile = file_exists( $local_file );
 151         }
 152
 153         /**
 154          * Safe copy from URL
 155          * Returns true if there was an error, false otherwise
 156          */
 157         private function curlCopy( $url, $dest ) {
 158                 global $wgUser, $wgOut;
 159
 160                 if( !$wgUser->isAllowed( 'upload_by_url' ) ) {
 161                         $wgOut->permissionRequired( 'upload_by_url' );
 162                         return true;
 163                 }
 164
 165                 # Maybe remove some pasting blanks :-)
 166                 $url =  trim( $url );
 167                 if( stripos($url, 'http://') !== 0 && stripos($url, 'ftp://') !== 0 ) {
 168                         # Only HTTP or FTP URLs
 169                         $wgOut->showErrorPage( 'upload-proto-error', 'upload-proto-error-text' );
 170                         return true;
 171                 }
 172
 173                 # Open temporary file
 174                 $this->mCurlDestHandle = @fopen( $this->mTempPath, "wb" );
 175                 if( $this->mCurlDestHandle === false ) {
 176                         # Could not open temporary file to write in
 177                         $wgOut->showErrorPage( 'upload-file-error', 'upload-file-error-text');
 178                         return true;
 179                 }
 180
 181                 $ch = curl_init();
 182                 curl_setopt( $ch, CURLOPT_HTTP_VERSION, 1.0); # Probably not needed, but apparently can work around some bug
 183                 curl_setopt( $ch, CURLOPT_TIMEOUT, 10); # 10 seconds timeout
 184                 curl_setopt( $ch, CURLOPT_LOW_SPEED_LIMIT, 512); # 0.5KB per second minimum transfer speed
 185                 curl_setopt( $ch, CURLOPT_URL, $url);
 186                 curl_setopt( $ch, CURLOPT_WRITEFUNCTION, array( $this, 'uploadCurlCallback' ) );
 187                 curl_exec( $ch );
 188                 $error = curl_errno( $ch ) ? true : false;
 189                 $errornum =  curl_errno( $ch );
 190                 // if ( $error ) print curl_error ( $ch ) ; # Debugging output
 191                 curl_close( $ch );
 192
 193                 fclose( $this->mCurlDestHandle );
 194                 unset( $this->mCurlDestHandle );
 195                 if( $error ) {
 196                         unlink( $dest );
 197                         if( wfEmptyMsg( "upload-curl-error$errornum", wfMsg("upload-curl-error$errornum") ) )
 198                                 $wgOut->showErrorPage( 'upload-misc-error', 'upload-misc-error-text' );
 199                         else
 200                                 $wgOut->showErrorPage( "upload-curl-error$errornum", "upload-curl-error$errornum-text" );
 201                 }
 202
 203                 return $error;
 204         }
 205
 206         /**
 207          * Callback function for CURL-based web transfer
 208          * Write data to file unless we've passed the length limit;
 209          * if so, abort immediately.
 210          * @access private
 211          */
 212         function uploadCurlCallback( $ch, $data ) {
 213                 global $wgMaxUploadSize;
 214                 $length = strlen( $data );
 215                 $this->mFileSize += $length;
 216                 if( $this->mFileSize > $wgMaxUploadSize ) {
 217                         return 0;
 218                 }
 219                 fwrite( $this->mCurlDestHandle, $data );
 220                 return $length;
 221         }
 222
 223         /**
 224          * Start doing stuff
 225          * @access public
 226          */
 227         function execute() {
 228                 global $wgUser, $wgOut;
 229                 global $wgEnableUploads;
 230
 231                 # Check uploading enabled
 232                 if( !$wgEnableUploads ) {
 233                         $wgOut->showErrorPage( 'uploaddisabled', 'uploaddisabledtext', array( $this->mDesiredDestName ) );
 234                         return;
 235                 }
 236
 237                 # Check permissions
 238                 if( !$wgUser->isAllowed( 'upload' ) ) {
 239                         if( !$wgUser->isLoggedIn() ) {
 240                                 $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
 241                         } else {
 242                                 $wgOut->permissionRequired( 'upload' );
 243                         }
 244                         return;
 245                 }
 246
 247                 # Check blocks
 248                 if( $wgUser->isBlocked() ) {
 249                         $wgOut->blockedPage();
 250                         return;
 251                 }
 252
 253                 if( wfReadOnly() ) {
 254                         $wgOut->readOnlyPage();
 255                         return;
 256                 }
 257
 258                 if( $this->mReUpload ) {
 259                         if( !$this->unsaveUploadedFile() ) {
 260                                 return;
 261                         }
 262                         # Because it is probably checked and shouldn't be
 263                         $this->mIgnoreWarning = false;
 264
 265                         $this->mainUploadForm();
 266                 } else if( 'submit' == $this->mAction || $this->mUploadClicked ) {
 267                         $this->processUpload();
 268                 } else {
 269                         $this->mainUploadForm();
 270                 }
 271
 272                 $this->cleanupTempFile();
 273         }
 274
 275         /**
 276          * Do the upload
 277          * Checks are made in SpecialUpload::execute()
 278          *
 279          * @access private
 280          */
 281         function processUpload(){
 282                 global $wgUser, $wgOut, $wgFileExtensions, $wgLang;
 283                 $details = null;
 284                 $value = null;
 285                 $value = $this->internalProcessUpload( $details );
 286
 287                 switch($value) {
 288                         case self::SUCCESS:
 289                                 $wgOut->redirect( $this->mLocalFile->getTitle()->getFullURL() );
 290                                 break;
 291
 292                         case self::BEFORE_PROCESSING:
 293                                 break;
 294
 295                         case self::LARGE_FILE_SERVER:
 296                                 $this->mainUploadForm( wfMsgHtml( 'largefileserver' ) );
 297                                 break;
 298
 299                         case self::EMPTY_FILE:
 300                                 $this->mainUploadForm( wfMsgHtml( 'emptyfile' ) );
 301                                 break;
 302
 303                         case self::MIN_LENGHT_PARTNAME:
 304                                 $this->mainUploadForm( wfMsgHtml( 'minlength1' ) );
 305                                 break;
 306
 307                         case self::ILLEGAL_FILENAME:
 308                                 $filtered = $details['filtered'];
 309                                 $this->uploadError( wfMsgWikiHtml( 'illegalfilename', htmlspecialchars( $filtered ) ) );
 310                                 break;
 311
 312                         case self::PROTECTED_PAGE:
 313                                 $wgOut->showPermissionsErrorPage( $details['permissionserrors'] );
 314                                 break;
 315
 316                         case self::OVERWRITE_EXISTING_FILE:
 317                                 $errorText = $details['overwrite'];
 318                                 $this->uploadError( $wgOut->parse( $errorText ) );
 319                                 break;
 320
 321                         case self::FILETYPE_MISSING:
 322                                 $this->uploadError( wfMsgExt( 'filetype-missing', array ( 'parseinline' ) ) );
 323                                 break;
 324
 325                         case self::FILETYPE_BADTYPE:
 326                                 $finalExt = $details['finalExt'];
 327                                 $this->uploadError(
 328                                         wfMsgExt( 'filetype-banned-type',
 329                                                 array( 'parseinline' ),
 330                                                 htmlspecialchars( $finalExt ),
 331                                                 $wgLang->commaList( $wgFileExtensions ),
 332                                                 $wgLang->formatNum( count($wgFileExtensions) )
 333                                         )
 334                                 );
 335                                 break;
 336
 337                         case self::VERIFICATION_ERROR:
 338                                 $veri = $details['veri'];
 339                                 $this->uploadError( $veri->toString() );
 340                                 break;
 341
 342                         case self::UPLOAD_VERIFICATION_ERROR:
 343                                 $error = $details['error'];
 344                                 $this->uploadError( $error );
 345                                 break;
 346
 347                         case self::UPLOAD_WARNING:
 348                                 $warning = $details['warning'];
 349                                 $this->uploadWarning( $warning );
 350                                 break;
 351
 352                         case self::INTERNAL_ERROR:
 353                                 $internal = $details['internal'];
 354                                 $this->showError( $internal );
 355                                 break;
 356
 357                         default:
 358                                 throw new MWException( __METHOD__ . ": Unknown value `{$value}`" );
 359                 }
 360         }
 361
 362         /**
 363          * Really do the upload
 364          * Checks are made in SpecialUpload::execute()
 365          *
 366          * @param array $resultDetails contains result-specific dict of additional values
 367          *
 368          * @access private
 369          */
 370         function internalProcessUpload( &$resultDetails ) {
 371                 global $wgUser;
 372
 373                 if( !wfRunHooks( 'UploadForm:BeforeProcessing', array( &$this ) ) )
 374                 {
 375                         wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file." );
 376                         return self::BEFORE_PROCESSING;
 377                 }
 378
 379                 /**
 380                  * If there was no filename or a zero size given, give up quick.
 381                  */
 382                 if( trim( $this->mSrcName ) == '' || empty( $this->mFileSize ) ) {
 383                         return self::EMPTY_FILE;
 384                 }
 385
 386                 /* Check for curl error */
 387                 if( $this->mCurlError ) {
 388                         return self::BEFORE_PROCESSING;
 389                 }
 390
 391                 /**
 392                  * Chop off any directories in the given filename. Then
 393                  * filter out illegal characters, and try to make a legible name
 394                  * out of it. We'll strip some silently that Title would die on.
 395                  */
 396                 if( $this->mDesiredDestName ) {
 397                         $basename = $this->mDesiredDestName;
 398                 } else {
 399                         $basename = $this->mSrcName;
 400                 }
 401                 $filtered = wfStripIllegalFilenameChars( $basename );
 402
 403                 /**
 404                  * We'll want to blacklist against *any* 'extension', and use
 405                  * only the final one for the whitelist.
 406                  */
 407                 list( $partname, $ext ) = $this->splitExtensions( $filtered );
 408
 409                 if( count( $ext ) ) {
 410                         $finalExt = $ext[count( $ext ) - 1];
 411                 } else {
 412                         $finalExt = '';
 413                 }
 414
 415                 # If there was more than one "extension", reassemble the base
 416                 # filename to prevent bogus complaints about length
 417                 if( count( $ext ) > 1 ) {
 418                         for( $i = 0; $i < count( $ext ) - 1; $i++ )
 419                                 $partname .= '.' . $ext[$i];
 420                 }
 421
 422                 if( strlen( $partname ) < 1 ) {
 423                         return self::MIN_LENGHT_PARTNAME;
 424                 }
 425
 426                 $nt = Title::makeTitleSafe( NS_IMAGE, $filtered );
 427                 if( is_null( $nt ) ) {
 428                         $resultDetails = array( 'filtered' => $filtered );
 429                         return self::ILLEGAL_FILENAME;
 430                 }
 431                 $this->mLocalFile = wfLocalFile( $nt );
 432                 $this->mDestName = $this->mLocalFile->getName();
 433
 434                 /**
 435                  * If the image is protected, non-sysop users won't be able
 436                  * to modify it by uploading a new revision.
 437                  */
 438                 $permErrors = $nt->getUserPermissionsErrors( 'edit', $wgUser );
 439                 $permErrorsUpload = $nt->getUserPermissionsErrors( 'upload', $wgUser );
 440                 $permErrorsCreate = ( $nt->exists() ? array() : $nt->getUserPermissionsErrors( 'create', $wgUser ) );
 441
 442                 if( $permErrors || $permErrorsUpload || $permErrorsCreate ) {
 443                         // merge all the problems into one list, avoiding duplicates
 444                         $permErrors = array_merge( $permErrors, wfArrayDiff2( $permErrorsUpload, $permErrors ) );
 445                         $permErrors = array_merge( $permErrors, wfArrayDiff2( $permErrorsCreate, $permErrors ) );
 446                         $resultDetails = array( 'permissionserrors' => $permErrors );
 447                         return self::PROTECTED_PAGE;
 448                 }
 449
 450                 /**
 451                  * In some cases we may forbid overwriting of existing files.
 452                  */
 453                 $overwrite = $this->checkOverwrite( $this->mDestName );
 454                 if( $overwrite !== true ) {
 455                         $resultDetails = array( 'overwrite' => $overwrite );
 456                         return self::OVERWRITE_EXISTING_FILE;
 457                 }
 458
 459                 /* Don't allow users to override the blacklist (check file extension) */
 460                 global $wgCheckFileExtensions, $wgStrictFileExtensions;
 461                 global $wgFileExtensions, $wgFileBlacklist;
 462                 if ($finalExt == '') {
 463                         return self::FILETYPE_MISSING;
 464                 } elseif ( $this->checkFileExtensionList( $ext, $wgFileBlacklist ) ||
 465                                 ($wgCheckFileExtensions && $wgStrictFileExtensions &&
 466                                         !$this->checkFileExtension( $finalExt, $wgFileExtensions ) ) ) {
 467                         $resultDetails = array( 'finalExt' => $finalExt );
 468                         return self::FILETYPE_BADTYPE;
 469                 }
 470
 471                 /**
 472                  * Look at the contents of the file; if we can recognize the
 473                  * type but it's corrupt or data of the wrong type, we should
 474                  * probably not accept it.
 475                  */
 476                 if( !$this->mStashed ) {
 477                         $this->mFileProps = File::getPropsFromPath( $this->mTempPath, $finalExt );
 478                         $this->checkMacBinary();
 479                         $veri = $this->verify( $this->mTempPath, $finalExt );
 480
 481                         if( $veri !== true ) { //it's a wiki error...
 482                                 $resultDetails = array( 'veri' => $veri );
 483                                 return self::VERIFICATION_ERROR;
 484                         }
 485
 486                         /**
 487                          * Provide an opportunity for extensions to add further checks
 488                          */
 489                         $error = '';
 490                         if( !wfRunHooks( 'UploadVerification',
 491                                         array( $this->mDestName, $this->mTempPath, &$error ) ) ) {
 492                                 $resultDetails = array( 'error' => $error );
 493                                 return self::UPLOAD_VERIFICATION_ERROR;
 494                         }
 495                 }
 496
 497
 498                 /**
 499                  * Check for non-fatal conditions
 500                  */
 501                 if ( ! $this->mIgnoreWarning ) {
 502                         $warning = '';
 503
 504                         global $wgCapitalLinks;
 505                         if( $wgCapitalLinks ) {
 506                                 $filtered = ucfirst( $filtered );
 507                         }
 508                         if( $basename != $filtered ) {
 509                                 $warning .=  '<li>'.wfMsgHtml( 'badfilename', htmlspecialchars( $this->mDestName ) ).'</li>';
 510                         }
 511
 512                         global $wgCheckFileExtensions;
 513                         if ( $wgCheckFileExtensions ) {
 514                                 if ( !$this->checkFileExtension( $finalExt, $wgFileExtensions ) ) {
 515                                         global $wgLang;
 516                                         $warning .= '<li>' .
 517                                         wfMsgExt( 'filetype-unwanted-type',
 518                                                 array( 'parseinline' ),
 519                                                 htmlspecialchars( $finalExt ),
 520                                                 $wgLang->commaList( $wgFileExtensions ),
 521                                                 $wgLang->formatNum( count($wgFileExtensions) )
 522                                         ) . '</li>';
 523                                 }
 524                         }
 525
 526                         global $wgUploadSizeWarning;
 527                         if ( $wgUploadSizeWarning && ( $this->mFileSize > $wgUploadSizeWarning ) ) {
 528                                 $skin = $wgUser->getSkin();
 529                                 $wsize = $skin->formatSize( $wgUploadSizeWarning );
 530                                 $asize = $skin->formatSize( $this->mFileSize );
 531                                 $warning .= '<li>' . wfMsgHtml( 'large-file', $wsize, $asize ) . '</li>';
 532                         }
 533                         if ( $this->mFileSize == 0 ) {
 534                                 $warning .= '<li>'.wfMsgHtml( 'emptyfile' ).'</li>';
 535                         }
 536
 537                         if ( !$this->mDestWarningAck ) {
 538                                 $warning .= self::getExistsWarning( $this->mLocalFile );
 539                         }
 540
 541                         $warning .= $this->getDupeWarning( $this->mTempPath );
 542
 543                         if( $warning != '' ) {
 544                                 /**
 545                                  * Stash the file in a temporary location; the user can choose
 546                                  * to let it through and we'll complete the upload then.
 547                                  */
 548                                 $resultDetails = array( 'warning' => $warning );
 549                                 return self::UPLOAD_WARNING;
 550                         }
 551                 }
 552
 553                 /**
 554                  * Try actually saving the thing...
 555                  * It will show an error form on failure.
 556                  */
 557                 $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
 558                         $this->mCopyrightStatus, $this->mCopyrightSource );
 559
 560                 $status = $this->mLocalFile->upload( $this->mTempPath, $this->mComment, $pageText,
 561                         File::DELETE_SOURCE, $this->mFileProps );
 562                 if ( !$status->isGood() ) {
 563                         $resultDetails = array( 'internal' => $status->getWikiText() );
 564                         return self::INTERNAL_ERROR;
 565                 } else {
 566                         if ( $this->mWatchthis ) {
 567                                 global $wgUser;
 568                                 $wgUser->addWatch( $this->mLocalFile->getTitle() );
 569                         }
 570                         // Success, redirect to description page
 571                         $img = null; // @todo: added to avoid passing a ref to null - should this be defined somewhere?
 572                         wfRunHooks( 'UploadComplete', array( &$this ) );
 573                         return self::SUCCESS;
 574                 }
 575         }
 576
 577         /**
 578          * Do existence checks on a file and produce a warning
 579          * This check is static and can be done pre-upload via AJAX
 580          * Returns an HTML fragment consisting of one or more LI elements if there is a warning
 581          * Returns an empty string if there is no warning
 582          */
 583         static function getExistsWarning( $file ) {
 584                 global $wgUser, $wgContLang;
 585                 // Check for uppercase extension. We allow these filenames but check if an image
 586                 // with lowercase extension exists already
 587                 $warning = '';
 588                 $align = $wgContLang->isRtl() ? 'left' : 'right';
 589
 590                 if( strpos( $file->getName(), '.' ) == false ) {
 591                         $partname = $file->getName();
 592                         $rawExtension = '';
 593                 } else {
 594                         $n = strrpos( $file->getName(), '.' );
 595                         $rawExtension = substr( $file->getName(), $n + 1 );
 596                         $partname = substr( $file->getName(), 0, $n );
 597                 }
 598
 599                 $sk = $wgUser->getSkin();
 600
 601                 if ( $rawExtension != $file->getExtension() ) {
 602                         // We're not using the normalized form of the extension.
 603                         // Normal form is lowercase, using most common of alternate
 604                         // extensions (eg 'jpg' rather than 'JPEG').
 605                         //
 606                         // Check for another file using the normalized form...
 607                         $nt_lc = Title::makeTitle( NS_IMAGE, $partname . '.' . $file->getExtension() );
 608                         $file_lc = wfLocalFile( $nt_lc );
 609                 } else {
 610                         $file_lc = false;
 611                 }
 612
 613                 if( $file->exists() ) {
 614                         $dlink = $sk->makeKnownLinkObj( $file->getTitle() );
 615                         if ( $file->allowInlineDisplay() ) {
 616                                 $dlink2 = $sk->makeImageLinkObj( $file->getTitle(), wfMsgExt( 'fileexists-thumb', 'parseinline' ),
 617                                         $file->getName(), $align, array(), false, true );
 618                         } elseif ( !$file->allowInlineDisplay() && $file->isSafeFile() ) {
 619                                 $icon = $file->iconThumb();
 620                                 $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
 621                                         $icon->toHtml( array( 'desc-link' => true ) ) . '<br />' . $dlink . '</div>';
 622                         } else {
 623                                 $dlink2 = '';
 624                         }
 625
 626                         $warning .= '<li>' . wfMsgExt( 'fileexists', array('parseinline','replaceafter'), $dlink ) . '</li>' . $dlink2;
 627
 628                 } elseif( $file->getTitle()->getArticleID() ) {
 629                         $lnk = $sk->makeKnownLinkObj( $file->getTitle(), '', 'redirect=no' );
 630                         $warning .= '<li>' . wfMsgExt( 'filepageexists', array( 'parseinline', 'replaceafter' ), $lnk ) . '</li>';
 631                 } elseif ( $file_lc && $file_lc->exists() ) {
 632                         # Check if image with lowercase extension exists.
 633                         # It's not forbidden but in 99% it makes no sense to upload the same filename with uppercase extension
 634                         $dlink = $sk->makeKnownLinkObj( $nt_lc );
 635                         if ( $file_lc->allowInlineDisplay() ) {
 636                                 $dlink2 = $sk->makeImageLinkObj( $nt_lc, wfMsgExt( 'fileexists-thumb', 'parseinline' ),
 637                                         $nt_lc->getText(), $align, array(), false, true );
 638                         } elseif ( !$file_lc->allowInlineDisplay() && $file_lc->isSafeFile() ) {
 639                                 $icon = $file_lc->iconThumb();
 640                                 $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
 641                                         $icon->toHtml( array( 'desc-link' => true ) ) . '<br />' . $dlink . '</div>';
 642                         } else {
 643                                 $dlink2 = '';
 644                         }
 645
 646                         $warning .= '<li>' .
 647                                 wfMsgExt( 'fileexists-extension', 'parsemag',
 648                                         $file->getTitle()->getPrefixedText(), $dlink ) .
 649                                 '</li>' . $dlink2;
 650
 651                 } elseif ( ( substr( $partname , 3, 3 ) == 'px-' || substr( $partname , 2, 3 ) == 'px-' )
 652                         && ereg( "[0-9]{2}" , substr( $partname , 0, 2) ) )
 653                 {
 654                         # Check for filenames like 50px- or 180px-, these are mostly thumbnails
 655                         $nt_thb = Title::newFromText( substr( $partname , strpos( $partname , '-' ) +1 ) . '.' . $rawExtension );
 656                         $file_thb = wfLocalFile( $nt_thb );
 657                         if ($file_thb->exists() ) {
 658                                 # Check if an image without leading '180px-' (or similiar) exists
 659                                 $dlink = $sk->makeKnownLinkObj( $nt_thb);
 660                                 if ( $file_thb->allowInlineDisplay() ) {
 661                                         $dlink2 = $sk->makeImageLinkObj( $nt_thb,
 662                                                 wfMsgExt( 'fileexists-thumb', 'parseinline' ),
 663                                                 $nt_thb->getText(), $align, array(), false, true );
 664                                 } elseif ( !$file_thb->allowInlineDisplay() && $file_thb->isSafeFile() ) {
 665                                         $icon = $file_thb->iconThumb();
 666                                         $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
 667                                                 $icon->toHtml( array( 'desc-link' => true ) ) . '<br />' .
 668                                                 $dlink . '</div>';
 669                                 } else {
 670                                         $dlink2 = '';
 671                                 }
 672
 673                                 $warning .= '<li>' . wfMsgExt( 'fileexists-thumbnail-yes', 'parsemag', $dlink ) .
 674                                         '</li>' . $dlink2;
 675                         } else {
 676                                 # Image w/o '180px-' does not exists, but we do not like these filenames
 677                                 $warning .= '<li>' . wfMsgExt( 'file-thumbnail-no', 'parseinline' ,
 678                                         substr( $partname , 0, strpos( $partname , '-' ) +1 ) ) . '</li>';
 679                         }
 680                 }
 681
 682                 $filenamePrefixBlacklist = self::getFilenamePrefixBlacklist();
 683                 # Do the match
 684                 foreach( $filenamePrefixBlacklist as $prefix ) {
 685                         if ( substr( $partname, 0, strlen( $prefix ) ) == $prefix ) {
 686                                 $warning .= '<li>' . wfMsgExt( 'filename-bad-prefix', 'parseinline', $prefix ) . '</li>';
 687                                 break;
 688                         }
 689                 }
 690
 691                 if ( $file->wasDeleted() && !$file->exists() ) {
 692                         # If the file existed before and was deleted, warn the user of this
 693                         # Don't bother doing so if the file exists now, however
 694                         $ltitle = SpecialPage::getTitleFor( 'Log' );
 695                         $llink = $sk->makeKnownLinkObj( $ltitle, wfMsgHtml( 'deletionlog' ),
 696                                 'type=delete&page=' . $file->getTitle()->getPrefixedUrl() );
 697                         $warning .= '<li>' . wfMsgWikiHtml( 'filewasdeleted', $llink ) . '</li>';
 698                 }
 699                 return $warning;
 700         }
 701
 702         /**
 703          * Get a list of warnings
 704          *
 705          * @param string local filename, e.g. 'file exists', 'non-descriptive filename'
 706          * @return array list of warning messages
 707          */
 708         static function ajaxGetExistsWarning( $filename ) {
 709                 $file = wfFindFile( $filename );
 710                 if( !$file ) {
 711                         // Force local file so we have an object to do further checks against
 712                         // if there isn't an exact match...
 713                         $file = wfLocalFile( $filename );
 714                 }
 715                 $s = '&nbsp;';
 716                 if ( $file ) {
 717                         $warning = self::getExistsWarning( $file );
 718                         if ( $warning !== '' ) {
 719                                 $s = "<ul>$warning</ul>";
 720                         }
 721                 }
 722                 return $s;
 723         }
 724
 725         /**
 726          * Render a preview of a given license for the AJAX preview on upload
 727          *
 728          * @param string $license
 729          * @return string
 730          */
 731         public static function ajaxGetLicensePreview( $license ) {
 732                 global $wgParser, $wgUser;
 733                 $text = '{{' . $license . '}}';
 734                 $title = Title::makeTitle( NS_IMAGE, 'Sample.jpg' );
 735                 $options = ParserOptions::newFromUser( $wgUser );
 736
 737                 // Expand subst: first, then live templates...
 738                 $text = $wgParser->preSaveTransform( $text, $title, $wgUser, $options );
 739                 $output = $wgParser->parse( $text, $title, $options );
 740
 741                 return $output->getText();
 742         }
 743
 744         /**
 745          * Check for duplicate files and throw up a warning before the upload
 746          * completes.
 747          */
 748         function getDupeWarning( $tempfile ) {
 749                 $hash = File::sha1Base36( $tempfile );
 750                 $dupes = RepoGroup::singleton()->findBySha1( $hash );
 751                 if( $dupes ) {
 752                         global $wgOut;
 753                         $msg = "<gallery>";
 754                         foreach( $dupes as $file ) {
 755                                 $title = $file->getTitle();
 756                                 $msg .= $title->getPrefixedText() .
 757                                         "|" . $title->getText() . "\n";
 758                         }
 759                         $msg .= "</gallery>";
 760                         return "<li>" .
 761                                 wfMsgExt( "file-exists-duplicate", array( "parse" ), count( $dupes ) ) .
 762                                 $wgOut->parse( $msg ) .
 763                                 "</li>\n";
 764                 } else {
 765                         return '';
 766                 }
 767         }
 768
 769         /**
 770          * Get a list of blacklisted filename prefixes from [[MediaWiki:filename-prefix-blacklist]]
 771          *
 772          * @return array list of prefixes
 773          */
 774         public static function getFilenamePrefixBlacklist() {
 775                 $blacklist = array();
 776                 $message = wfMsgForContent( 'filename-prefix-blacklist' );
 777                 if( $message && !( wfEmptyMsg( 'filename-prefix-blacklist', $message ) || $message == '-' ) ) {
 778                         $lines = explode( "\n", $message );
 779                         foreach( $lines as $line ) {
 780                                 // Remove comment lines
 781                                 $comment = substr( trim( $line ), 0, 1 );
 782                                 if ( $comment == '#' || $comment == '' ) {
 783                                         continue;
 784                                 }
 785                                 // Remove additional comments after a prefix
 786                                 $comment = strpos( $line, '#' );
 787                                 if ( $comment > 0 ) {
 788                                         $line = substr( $line, 0, $comment-1 );
 789                                 }
 790                                 $blacklist[] = trim( $line );
 791                         }
 792                 }
 793                 return $blacklist;
 794         }
 795
 796         /**
 797          * Stash a file in a temporary directory for later processing
 798          * after the user has confirmed it.
 799          *
 800          * If the user doesn't explicitly cancel or accept, these files
 801          * can accumulate in the temp directory.
 802          *
 803          * @param string $saveName - the destination filename
 804          * @param string $tempName - the source temporary file to save
 805          * @return string - full path the stashed file, or false on failure
 806          * @access private
 807          */
 808         function saveTempUploadedFile( $saveName, $tempName ) {
 809                 global $wgOut;
 810                 $repo = RepoGroup::singleton()->getLocalRepo();
 811                 $status = $repo->storeTemp( $saveName, $tempName );
 812                 if ( !$status->isGood() ) {
 813                         $this->showError( $status->getWikiText() );
 814                         return false;
 815                 } else {
 816                         return $status->value;
 817                 }
 818         }
 819
 820         /**
 821          * Stash a file in a temporary directory for later processing,
 822          * and save the necessary descriptive info into the session.
 823          * Returns a key value which will be passed through a form
 824          * to pick up the path info on a later invocation.
 825          *
 826          * @return int
 827          * @access private
 828          */
 829         function stashSession() {
 830                 $stash = $this->saveTempUploadedFile( $this->mDestName, $this->mTempPath );
 831
 832                 if( !$stash ) {
 833                         # Couldn't save the file.
 834                         return false;
 835                 }
 836
 837                 $key = mt_rand( 0, 0x7fffffff );
 838                 $_SESSION['wsUploadData'][$key] = array(
 839                         'mTempPath'       => $stash,
 840                         'mFileSize'       => $this->mFileSize,
 841                         'mSrcName'        => $this->mSrcName,
 842                         'mFileProps'      => $this->mFileProps,
 843                         'version'         => self::SESSION_VERSION,
 844                 );
 845                 return $key;
 846         }
 847
 848         /**
 849          * Remove a temporarily kept file stashed by saveTempUploadedFile().
 850          * @access private
 851          * @return success
 852          */
 853         function unsaveUploadedFile() {
 854                 global $wgOut;
 855                 $repo = RepoGroup::singleton()->getLocalRepo();
 856                 $success = $repo->freeTemp( $this->mTempPath );
 857                 if ( ! $success ) {
 858                         $wgOut->showFileDeleteError( $this->mTempPath );
 859                         return false;
 860                 } else {
 861                         return true;
 862                 }
 863         }
 864
 865         /* -------------------------------------------------------------- */
 866
 867         /**
 868          * @param string $error as HTML
 869          * @access private
 870          */
 871         function uploadError( $error ) {
 872                 global $wgOut;
 873                 $wgOut->addHTML( '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" );
 874                 $wgOut->addHTML( '<span class="error">' . $error . '</span>' );
 875         }
 876
 877         /**
 878          * There's something wrong with this file, not enough to reject it
 879          * totally but we require manual intervention to save it for real.
 880          * Stash it away, then present a form asking to confirm or cancel.
 881          *
 882          * @param string $warning as HTML
 883          * @access private
 884          */
 885         function uploadWarning( $warning ) {
 886                 global $wgOut;
 887                 global $wgUseCopyrightUpload;
 888
 889                 $this->mSessionKey = $this->stashSession();
 890                 if( !$this->mSessionKey ) {
 891                         # Couldn't save file; an error has been displayed so let's go.
 892                         return;
 893                 }
 894
 895                 $wgOut->addHTML( '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" );
 896                 $wgOut->addHTML( '<ul class="warning">' . $warning . "</ul>\n" );
 897
 898                 $titleObj = SpecialPage::getTitleFor( 'Upload' );
 899
 900                 if ( $wgUseCopyrightUpload ) {
 901                         $copyright = Xml::hidden( 'wpUploadCopyStatus', $this->mCopyrightStatus ) . "\n" .
 902                                         Xml::hidden( 'wpUploadSource', $this->mCopyrightSource ) . "\n";
 903                 } else {
 904                         $copyright = '';
 905                 }
 906
 907                 $wgOut->addHTML(
 908                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL( 'action=submit' ),
 909                                  'enctype' => 'multipart/form-data', 'id' => 'uploadwarning' ) ) . "\n" .
 910                         Xml::hidden( 'wpIgnoreWarning', '1' ) . "\n" .
 911                         Xml::hidden( 'wpSessionKey', $this->mSessionKey ) . "\n" .
 912                         Xml::hidden( 'wpUploadDescription', $this->mComment ) . "\n" .
 913                         Xml::hidden( 'wpLicense', $this->mLicense ) . "\n" .
 914                         Xml::hidden( 'wpDestFile', $this->mDesiredDestName ) . "\n" .
 915                         Xml::hidden( 'wpWatchthis', $this->mWatchthis ) . "\n" .
 916                         "{$copyright}<br />" .
 917                         Xml::submitButton( wfMsg( 'ignorewarning' ), array ( 'name' => 'wpUpload', 'id' => 'wpUpload', 'checked' => 'checked' ) ) . ' ' .
 918                         Xml::submitButton( wfMsg( 'reuploaddesc' ), array ( 'name' => 'wpReUpload', 'id' => 'wpReUpload' ) ) .
 919                         Xml::closeElement( 'form' ) . "\n"
 920                 );
 921         }
 922
 923         /**
 924          * Displays the main upload form, optionally with a highlighted
 925          * error message up at the top.
 926          *
 927          * @param string $msg as HTML
 928          * @access private
 929          */
 930         function mainUploadForm( $msg='' ) {
 931                 global $wgOut, $wgUser, $wgLang, $wgMaxUploadSize;
 932                 global $wgUseCopyrightUpload, $wgUseAjax, $wgAjaxUploadDestCheck, $wgAjaxLicensePreview;
 933                 global $wgRequest, $wgAllowCopyUploads;
 934                 global $wgStylePath, $wgStyleVersion;
 935
 936                 $useAjaxDestCheck = $wgUseAjax && $wgAjaxUploadDestCheck;
 937                 $useAjaxLicensePreview = $wgUseAjax && $wgAjaxLicensePreview;
 938
 939                 $adc = wfBoolToStr( $useAjaxDestCheck );
 940                 $alp = wfBoolToStr( $useAjaxLicensePreview );
 941                 $autofill = wfBoolToStr( $this->mDesiredDestName == '' );
 942
 943                 $wgOut->addScript( "<script type=\"text/javascript\">
 944 wgAjaxUploadDestCheck = {$adc};
 945 wgAjaxLicensePreview = {$alp};
 946 wgUploadAutoFill = {$autofill};
 947 </script>" );
 948                 $wgOut->addScriptFile( 'upload.js' );
 949                 $wgOut->addScriptFile( 'edit.js' ); // For <charinsert> support
 950
 951                 if( !wfRunHooks( 'UploadForm:initial', array( &$this ) ) )
 952                 {
 953                         wfDebug( "Hook 'UploadForm:initial' broke output of the upload form" );
 954                         return false;
 955                 }
 956
 957                 if( $this->mDesiredDestName ) {
 958                         $title = Title::makeTitleSafe( NS_IMAGE, $this->mDesiredDestName );
 959                         // Show a subtitle link to deleted revisions (to sysops et al only)
 960                         if( $title instanceof Title && ( $count = $title->isDeleted() ) > 0 && $wgUser->isAllowed( 'deletedhistory' ) ) {
 961                                 $link = wfMsgExt(
 962                                         $wgUser->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted',
 963                                         array( 'parse', 'replaceafter' ),
 964                                         $wgUser->getSkin()->makeKnownLinkObj(
 965                                                 SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
 966                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $count )
 967                                         )
 968                                 );
 969                                 $wgOut->addHtml( "<div id=\"contentSub2\">{$link}</div>" );
 970                         }
 971
 972                         // Show the relevant lines from deletion log (for still deleted files only)
 973                         if( $title instanceof Title && $title->isDeleted() > 0 && !$title->exists() ) {
 974                                 $this->showDeletionLog( $wgOut, $title->getPrefixedText() );
 975                         }
 976                 }
 977
 978                 $cols = intval($wgUser->getOption( 'cols' ));
 979
 980                 if( $wgUser->getOption( 'editwidth' ) ) {
 981                         $width = " style=\"width:100%\"";
 982                 } else {
 983                         $width = '';
 984                 }
 985
 986                 if ( '' != $msg ) {
 987                         $sub = wfMsgHtml( 'uploaderror' );
 988                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" .
 989                           "<span class='error'>{$msg}</span>\n" );
 990                 }
 991                 $wgOut->addHTML( '<div id="uploadtext">' );
 992                 $wgOut->addWikiMsg( 'uploadtext', $this->mDesiredDestName );
 993                 $wgOut->addHTML( "</div>\n" );
 994
 995                 # Print a list of allowed file extensions, if so configured.  We ignore
 996                 # MIME type here, it's incomprehensible to most people and too long.
 997                 global $wgCheckFileExtensions, $wgStrictFileExtensions,
 998                 $wgFileExtensions, $wgFileBlacklist;
 999
1000                 $allowedExtensions = '';
1001                 if( $wgCheckFileExtensions ) {
1002                         if( $wgStrictFileExtensions ) {
1003                                 # Everything not permitted is banned
1004                                 $extensionsList =
1005                                         '<div id="mw-upload-permitted">' .
1006                                         wfMsgWikiHtml( 'upload-permitted', $wgLang->commaList( $wgFileExtensions ) ) .
1007                                         "</div>\n";
1008                         } else {
1009                                 # We have to list both preferred and prohibited
1010                                 $extensionsList =
1011                                         '<div id="mw-upload-preferred">' .
1012                                         wfMsgWikiHtml( 'upload-preferred', $wgLang->commaList( $wgFileExtensions ) ) .
1013                                         "</div>\n" .
1014                                         '<div id="mw-upload-prohibited">' .
1015                                         wfMsgWikiHtml( 'upload-prohibited', $wgLang->commaList( $wgFileBlacklist ) ) .
1016                                         "</div>\n";
1017                         }
1018                 } else {
1019                         # Everything is permitted.
1020                         $extensionsList = '';
1021                 }
1022
1023                 # Get the maximum file size from php.ini as $wgMaxUploadSize works for uploads from URL via CURL only
1024                 # See http://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize for possible values of upload_max_filesize
1025                 $val = trim( ini_get( 'upload_max_filesize' ) );
1026                 $last = strtoupper( ( substr( $val, -1 ) ) );
1027                 switch( $last ) {
1028                         case 'G':
1029                                 $val2 = substr( $val, 0, -1 ) * 1024 * 1024 * 1024;
1030                                 break;
1031                         case 'M':
1032                                 $val2 = substr( $val, 0, -1 ) * 1024 * 1024;
1033                                 break;
1034                         case 'K':
1035                                 $val2 = substr( $val, 0, -1 ) * 1024;
1036                                 break;
1037                         default:
1038                                 $val2 = $val;
1039                 }
1040                 $val2 = $wgAllowCopyUploads ? min( $wgMaxUploadSize, $val2 ) : $val2;
1041                 $maxUploadSize = '<div id="mw-upload-maxfilesize">' .
1042                         wfMsgExt( 'upload-maxfilesize', array( 'parseinline', 'escapenoentities' ),
1043                                 $wgLang->formatSize( $val2 ) ) .
1044                                 "</div>\n";
1045
1046                 $sourcefilename = wfMsgExt( 'sourcefilename', array( 'parseinline', 'escapenoentities' ) );
1047         $destfilename = wfMsgExt( 'destfilename', array( 'parseinline', 'escapenoentities' ) );
1048
1049                 $summary = wfMsgExt( 'fileuploadsummary', 'parseinline' );
1050
1051                 $licenses = new Licenses();
1052                 $license = wfMsgExt( 'license', array( 'parseinline' ) );
1053                 $nolicense = wfMsgHtml( 'nolicense' );
1054                 $licenseshtml = $licenses->getHtml();
1055
1056                 $ulb = wfMsgHtml( 'uploadbtn' );
1057
1058
1059                 $titleObj = SpecialPage::getTitleFor( 'Upload' );
1060
1061                 $encDestName = htmlspecialchars( $this->mDesiredDestName );
1062
1063                 $watchChecked = $this->watchCheck()
1064                         ? 'checked="checked"'
1065                         : '';
1066                 $warningChecked = $this->mIgnoreWarning ? 'checked' : '';
1067
1068                 // Prepare form for upload or upload/copy
1069                 if( $wgAllowCopyUploads && $wgUser->isAllowed( 'upload_by_url' ) ) {
1070                         $filename_form =
1071                                 "<input type='radio' id='wpSourceTypeFile' name='wpSourceType' value='file' " .
1072                                    "onchange='toggle_element_activation(\"wpUploadFileURL\",\"wpUploadFile\")' checked='checked' />" .
1073                                  "<input tabindex='1' type='file' name='wpUploadFile' id='wpUploadFile' " .
1074                                    "onfocus='" .
1075                                      "toggle_element_activation(\"wpUploadFileURL\",\"wpUploadFile\");" .
1076                                      "toggle_element_check(\"wpSourceTypeFile\",\"wpSourceTypeURL\")' " .
1077                                      "onchange='fillDestFilename(\"wpUploadFile\")' size='60' />" .
1078                                 wfMsgHTML( 'upload_source_file' ) . "<br/>" .
1079                                 "<input type='radio' id='wpSourceTypeURL' name='wpSourceType' value='web' " .
1080                                   "onchange='toggle_element_activation(\"wpUploadFile\",\"wpUploadFileURL\")' />" .
1081                                 "<input tabindex='1' type='text' name='wpUploadFileURL' id='wpUploadFileURL' " .
1082                                   "onfocus='" .
1083                                     "toggle_element_activation(\"wpUploadFile\",\"wpUploadFileURL\");" .
1084                                     "toggle_element_check(\"wpSourceTypeURL\",\"wpSourceTypeFile\")' " .
1085                                     "onchange='fillDestFilename(\"wpUploadFileURL\")' size='60' disabled='disabled' />" .
1086                                 wfMsgHtml( 'upload_source_url' ) ;
1087                 } else {
1088                         $filename_form =
1089                                 "<input tabindex='1' type='file' name='wpUploadFile' id='wpUploadFile' " .
1090                                 ($this->mDesiredDestName?"":"onchange='fillDestFilename(\"wpUploadFile\")' ") .
1091                                 "size='60' />" .
1092                                 "<input type='hidden' name='wpSourceType' value='file' />" ;
1093                 }
1094                 if ( $useAjaxDestCheck ) {
1095                         $warningRow = "<tr><td colspan='2' id='wpDestFile-warning'>&nbsp;</td></tr>";
1096                         $destOnkeyup = 'onkeyup="wgUploadWarningObj.keypress();"';
1097                 } else {
1098                         $warningRow = '';
1099                         $destOnkeyup = '';
1100                 }
1101
1102                 $encComment = htmlspecialchars( $this->mComment );
1103
1104                 $wgOut->addHTML(
1105                          Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL(),
1106                                  'enctype' => 'multipart/form-data', 'id' => 'mw-upload-form' ) ) .
1107                          Xml::openElement( 'fieldset' ) .
1108                          Xml::element( 'legend', null, wfMsg( 'upload' ) ) .
1109                          Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-upload-table' ) ) .
1110                          "<tr>
1111                                 {$this->uploadFormTextTop}
1112                                 <td class='mw-label'>
1113                                         <label for='wpUploadFile'>{$sourcefilename}</label>
1114                                 </td>
1115                                 <td class='mw-input'>
1116                                         {$filename_form}
1117                                 </td>
1118                         </tr>
1119                         <tr>
1120                                 <td></td>
1121                                 <td>
1122                                         {$maxUploadSize}
1123                                         {$extensionsList}
1124                                 </td>
1125                         </tr>
1126                         <tr>
1127                                 <td class='mw-label'>
1128                                         <label for='wpDestFile'>{$destfilename}</label>
1129                                 </td>
1130                                 <td class='mw-input'>
1131                                         <input tabindex='2' type='text' name='wpDestFile' id='wpDestFile' size='60'
1132                                                 value=\"{$encDestName}\" onchange='toggleFilenameFiller()' $destOnkeyup />
1133                                 </td>
1134                         </tr>
1135                         <tr>
1136                                 <td class='mw-label'>
1137                                         <label for='wpUploadDescription'>{$summary}</label>
1138                                 </td>
1139                                 <td class='mw-input'>
1140                                         <textarea tabindex='3' name='wpUploadDescription' id='wpUploadDescription' rows='6'
1141                                                 cols='{$cols}'{$width}>$encComment</textarea>
1142                                         {$this->uploadFormTextAfterSummary}
1143                                 </td>
1144                         </tr>
1145                         <tr>"
1146                 );
1147
1148                 if ( $licenseshtml != '' ) {
1149                         global $wgStylePath;
1150                         $wgOut->addHTML( "
1151                                         <td class='mw-label'>
1152                                                 <label for='wpLicense'>$license</label>
1153                                         </td>
1154                                         <td class='mw-input'>
1155                                                 <select name='wpLicense' id='wpLicense' tabindex='4'
1156                                                         onchange='licenseSelectorCheck()'>
1157                                                         <option value=''>$nolicense</option>
1158                                                         $licenseshtml
1159                                                 </select>
1160                                         </td>
1161                                 </tr>
1162                                 <tr>"
1163                         );
1164                         if( $useAjaxLicensePreview ) {
1165                                 $wgOut->addHtml( "
1166                                                 <td></td>
1167                                                 <td id=\"mw-license-preview\"></td>
1168                                         </tr>
1169                                         <tr>"
1170                                 );
1171                         }
1172                 }
1173
1174                 if ( $wgUseCopyrightUpload ) {
1175                         $filestatus = wfMsgExt( 'filestatus', 'escapenoentities' );
1176                         $copystatus =  htmlspecialchars( $this->mCopyrightStatus );
1177                         $filesource = wfMsgExt( 'filesource', 'escapenoentities' );
1178                         $uploadsource = htmlspecialchars( $this->mCopyrightSource );
1179
1180                         $wgOut->addHTML( "
1181                                         <td class='mw-label' style='white-space: nowrap;'>
1182                                                 <label for='wpUploadCopyStatus'>$filestatus</label></td>
1183                                         <td class='mw-input'>
1184                                                 <input tabindex='5' type='text' name='wpUploadCopyStatus' id='wpUploadCopyStatus'
1185                                                         value=\"$copystatus\" size='60' />
1186                                         </td>
1187                                 </tr>
1188                                 <tr>
1189                                         <td class='mw-label'>
1190                                                 <label for='wpUploadCopyStatus'>$filesource</label>
1191                                         </td>
1192                                         <td class='mw-input'>
1193                                                 <input tabindex='6' type='text' name='wpUploadSource' id='wpUploadCopyStatus'
1194                                                         value=\"$uploadsource\" size='60' />
1195                                         </td>
1196                                 </tr>
1197                                 <tr>"
1198                         );
1199                 }
1200
1201                 $wgOut->addHtml( "
1202                                 <td></td>
1203                                 <td>
1204                                         <input tabindex='7' type='checkbox' name='wpWatchthis' id='wpWatchthis' $watchChecked value='true' />
1205                                         <label for='wpWatchthis'>" . wfMsgHtml( 'watchthisupload' ) . "</label>
1206                                         <input tabindex='8' type='checkbox' name='wpIgnoreWarning' id='wpIgnoreWarning' value='true' $warningChecked/>
1207                                         <label for='wpIgnoreWarning'>" . wfMsgHtml( 'ignorewarnings' ) . "</label>
1208                                 </td>
1209                         </tr>
1210                         $warningRow
1211                         <tr>
1212                                 <td></td>
1213                                         <td class='mw-input'>
1214                                                 <input tabindex='9' type='submit' name='wpUpload' value=\"{$ulb}\"" . $wgUser->getSkin()->tooltipAndAccesskey( 'upload' ) . " />
1215                                         </td>
1216                         </tr>
1217                         <tr>
1218                                 <td></td>
1219                                 <td class='mw-input'>"
1220                 );
1221                 $wgOut->addWikiText( wfMsgForContent( 'edittools' ) );
1222                 $wgOut->addHTML( "
1223                                 </td>
1224                         </tr>" .
1225                         Xml::closeElement( 'table' ) .
1226                         Xml::hidden( 'wpDestFileWarningAck', '', array( 'id' => 'wpDestFileWarningAck' ) ) .
1227                         Xml::closeElement( 'fieldset' ) .
1228                         Xml::closeElement( 'form' )
1229                 );
1230                 $uploadfooter = wfMsgNoTrans( 'uploadfooter' );
1231                 if( $uploadfooter != '-' && !wfEmptyMsg( 'uploadfooter', $uploadfooter ) ){
1232                         $wgOut->addWikiText( '<div id="mw-upload-footer-message">' . $uploadfooter . '</div>' );
1233                 }
1234         }
1235
1236         /* -------------------------------------------------------------- */
1237
1238         /**
1239          * See if we should check the 'watch this page' checkbox on the form
1240          * based on the user's preferences and whether we're being asked
1241          * to create a new file or update an existing one.
1242          *
1243          * In the case where 'watch edits' is off but 'watch creations' is on,
1244          * we'll leave the box unchecked.
1245          *
1246          * Note that the page target can be changed *on the form*, so our check
1247          * state can get out of sync.
1248          */
1249         function watchCheck() {
1250                 global $wgUser;
1251                 if( $wgUser->getOption( 'watchdefault' ) ) {
1252                         // Watch all edits!
1253                         return true;
1254                 }
1255
1256                 $local = wfLocalFile( $this->mDesiredDestName );
1257                 if( $local && $local->exists() ) {
1258                         // We're uploading a new version of an existing file.
1259                         // No creation, so don't watch it if we're not already.
1260                         return $local->getTitle()->userIsWatching();
1261                 } else {
1262                         // New page should get watched if that's our option.
1263                         return $wgUser->getOption( 'watchcreations' );
1264                 }
1265         }
1266
1267         /**
1268          * Split a file into a base name and all dot-delimited 'extensions'
1269          * on the end. Some web server configurations will fall back to
1270          * earlier pseudo-'extensions' to determine type and execute
1271          * scripts, so the blacklist needs to check them all.
1272          *
1273          * @return array
1274          */
1275         function splitExtensions( $filename ) {
1276                 $bits = explode( '.', $filename );
1277                 $basename = array_shift( $bits );
1278                 return array( $basename, $bits );
1279         }
1280
1281         /**
1282          * Perform case-insensitive match against a list of file extensions.
1283          * Returns true if the extension is in the list.
1284          *
1285          * @param string $ext
1286          * @param array $list
1287          * @return bool
1288          */
1289         function checkFileExtension( $ext, $list ) {
1290                 return in_array( strtolower( $ext ), $list );
1291         }
1292
1293         /**
1294          * Perform case-insensitive match against a list of file extensions.
1295          * Returns true if any of the extensions are in the list.
1296          *
1297          * @param array $ext
1298          * @param array $list
1299          * @return bool
1300          */
1301         function checkFileExtensionList( $ext, $list ) {
1302                 foreach( $ext as $e ) {
1303                         if( in_array( strtolower( $e ), $list ) ) {
1304                                 return true;
1305                         }
1306                 }
1307                 return false;
1308         }
1309
1310         /**
1311          * Verifies that it's ok to include the uploaded file
1312          *
1313          * @param string $tmpfile the full path of the temporary file to verify
1314          * @param string $extension The filename extension that the file is to be served with
1315          * @return mixed true of the file is verified, a WikiError object otherwise.
1316          */
1317         function verify( $tmpfile, $extension ) {
1318                 #magically determine mime type
1319                 $magic = MimeMagic::singleton();
1320                 $mime = $magic->guessMimeType($tmpfile,false);
1321
1322                 #check mime type, if desired
1323                 global $wgVerifyMimeType;
1324                 if ($wgVerifyMimeType) {
1325
1326                   wfDebug ( "\n\nmime: <$mime> extension: <$extension>\n\n");
1327                         #check mime type against file extension
1328                         if( !self::verifyExtension( $mime, $extension ) ) {
1329                                 return new WikiErrorMsg( 'uploadcorrupt' );
1330                         }
1331
1332                         #check mime type blacklist
1333                         global $wgMimeTypeBlacklist;
1334                         if( isset($wgMimeTypeBlacklist) && !is_null($wgMimeTypeBlacklist)
1335                                 && $this->checkFileExtension( $mime, $wgMimeTypeBlacklist ) ) {
1336                                 return new WikiErrorMsg( 'filetype-badmime', htmlspecialchars( $mime ) );
1337                         }
1338                 }
1339
1340                 #check for htmlish code and javascript
1341                 if( $this->detectScript ( $tmpfile, $mime, $extension ) ) {
1342                         return new WikiErrorMsg( 'uploadscripted' );
1343                 }
1344
1345                 /**
1346                 * Scan the uploaded file for viruses
1347                 */
1348                 $virus= $this->detectVirus($tmpfile);
1349                 if ( $virus ) {
1350                         return new WikiErrorMsg( 'uploadvirus', htmlspecialchars($virus) );
1351                 }
1352
1353                 wfDebug( __METHOD__.": all clear; passing.\n" );
1354                 return true;
1355         }
1356
1357         /**
1358          * Checks if the mime type of the uploaded file matches the file extension.
1359          *
1360          * @param string $mime the mime type of the uploaded file
1361          * @param string $extension The filename extension that the file is to be served with
1362          * @return bool
1363          */
1364         static function verifyExtension( $mime, $extension ) {
1365                 $magic = MimeMagic::singleton();
1366
1367                 if ( ! $mime || $mime == 'unknown' || $mime == 'unknown/unknown' )
1368                         if ( ! $magic->isRecognizableExtension( $extension ) ) {
1369                                 wfDebug( __METHOD__.": passing file with unknown detected mime type; " .
1370                                         "unrecognized extension '$extension', can't verify\n" );
1371                                 return true;
1372                         } else {
1373                                 wfDebug( __METHOD__.": rejecting file with unknown detected mime type; ".
1374                                         "recognized extension '$extension', so probably invalid file\n" );
1375                                 return false;
1376                         }
1377
1378                 $match= $magic->isMatchingExtension($extension,$mime);
1379
1380                 if ($match===NULL) {
1381                         wfDebug( __METHOD__.": no file extension known for mime type $mime, passing file\n" );
1382                         return true;
1383                 } elseif ($match===true) {
1384                         wfDebug( __METHOD__.": mime type $mime matches extension $extension, passing file\n" );
1385
1386                         #TODO: if it's a bitmap, make sure PHP or ImageMagic resp. can handle it!
1387                         return true;
1388
1389                 } else {
1390                         wfDebug( __METHOD__.": mime type $mime mismatches file extension $extension, rejecting file\n" );
1391                         return false;
1392                 }
1393         }
1394
1395         /**
1396          * Heuristic for detecting files that *could* contain JavaScript instructions or
1397          * things that may look like HTML to a browser and are thus
1398          * potentially harmful. The present implementation will produce false positives in some situations.
1399          *
1400          * @param string $file Pathname to the temporary upload file
1401          * @param string $mime The mime type of the file
1402          * @param string $extension The extension of the file
1403          * @return bool true if the file contains something looking like embedded scripts
1404          */
1405         function detectScript($file, $mime, $extension) {
1406                 global $wgAllowTitlesInSVG;
1407
1408                 #ugly hack: for text files, always look at the entire file.
1409                 #For binarie field, just check the first K.
1410
1411                 if (strpos($mime,'text/')===0) $chunk = file_get_contents( $file );
1412                 else {
1413                         $fp = fopen( $file, 'rb' );
1414                         $chunk = fread( $fp, 1024 );
1415                         fclose( $fp );
1416                 }
1417
1418                 $chunk= strtolower( $chunk );
1419
1420                 if (!$chunk) return false;
1421
1422                 #decode from UTF-16 if needed (could be used for obfuscation).
1423                 if (substr($chunk,0,2)=="\xfe\xff") $enc= "UTF-16BE";
1424                 elseif (substr($chunk,0,2)=="\xff\xfe") $enc= "UTF-16LE";
1425                 else $enc= NULL;
1426
1427                 if ($enc) $chunk= iconv($enc,"ASCII//IGNORE",$chunk);
1428
1429                 $chunk= trim($chunk);
1430
1431                 #FIXME: convert from UTF-16 if necessarry!
1432
1433                 wfDebug("SpecialUpload::detectScript: checking for embedded scripts and HTML stuff\n");
1434
1435                 #check for HTML doctype
1436                 if (eregi("<!DOCTYPE *X?HTML",$chunk)) return true;
1437
1438                 /**
1439                 * Internet Explorer for Windows performs some really stupid file type
1440                 * autodetection which can cause it to interpret valid image files as HTML
1441                 * and potentially execute JavaScript, creating a cross-site scripting
1442                 * attack vectors.
1443                 *
1444                 * Apple's Safari browser also performs some unsafe file type autodetection
1445                 * which can cause legitimate files to be interpreted as HTML if the
1446                 * web server is not correctly configured to send the right content-type
1447                 * (or if you're really uploading plain text and octet streams!)
1448                 *
1449                 * Returns true if IE is likely to mistake the given file for HTML.
1450                 * Also returns true if Safari would mistake the given file for HTML
1451                 * when served with a generic content-type.
1452                 */
1453
1454                 $tags = array(
1455                         '<body',
1456                         '<head',
1457                         '<html',   #also in safari
1458                         '<img',
1459                         '<pre',
1460                         '<script', #also in safari
1461                         '<table'
1462                         );
1463                 if( ! $wgAllowTitlesInSVG && $extension !== 'svg' && $mime !== 'image/svg' ) {
1464                         $tags[] = '<title';
1465                 }
1466
1467                 foreach( $tags as $tag ) {
1468                         if( false !== strpos( $chunk, $tag ) ) {
1469                                 return true;
1470                         }
1471                 }
1472
1473                 /*
1474                 * look for javascript
1475                 */
1476
1477                 #resolve entity-refs to look at attributes. may be harsh on big files... cache result?
1478                 $chunk = Sanitizer::decodeCharReferences( $chunk );
1479
1480                 #look for script-types
1481                 if (preg_match('!type\s*=\s*[\'"]?\s*(?:\w*/)?(?:ecma|java)!sim',$chunk)) return true;
1482
1483                 #look for html-style script-urls
1484                 if (preg_match('!(?:href|src|data)\s*=\s*[\'"]?\s*(?:ecma|java)script:!sim',$chunk)) return true;
1485
1486                 #look for css-style script-urls
1487                 if (preg_match('!url\s*\(\s*[\'"]?\s*(?:ecma|java)script:!sim',$chunk)) return true;
1488
1489                 wfDebug("SpecialUpload::detectScript: no scripts found\n");
1490                 return false;
1491         }
1492
1493         /**
1494          * Generic wrapper function for a virus scanner program.
1495          * This relies on the $wgAntivirus and $wgAntivirusSetup variables.
1496          * $wgAntivirusRequired may be used to deny upload if the scan fails.
1497          *
1498          * @param string $file Pathname to the temporary upload file
1499          * @return mixed false if not virus is found, NULL if the scan fails or is disabled,
1500          *         or a string containing feedback from the virus scanner if a virus was found.
1501          *         If textual feedback is missing but a virus was found, this function returns true.
1502          */
1503         function detectVirus($file) {
1504                 global $wgAntivirus, $wgAntivirusSetup, $wgAntivirusRequired, $wgOut;
1505
1506                 if ( !$wgAntivirus ) {
1507                         wfDebug( __METHOD__.": virus scanner disabled\n");
1508                         return NULL;
1509                 }
1510
1511                 if ( !$wgAntivirusSetup[$wgAntivirus] ) {
1512                         wfDebug( __METHOD__.": unknown virus scanner: $wgAntivirus\n" );
1513                         $wgOut->wrapWikiMsg( '<div class="error">$1</div>', array( 'virus-badscanner', $wgAntivirus ) );
1514                         return wfMsg('virus-unknownscanner') . " $wgAntivirus";
1515                 }
1516
1517                 # look up scanner configuration
1518                 $command = $wgAntivirusSetup[$wgAntivirus]["command"];
1519                 $exitCodeMap = $wgAntivirusSetup[$wgAntivirus]["codemap"];
1520                 $msgPattern = isset( $wgAntivirusSetup[$wgAntivirus]["messagepattern"] ) ?
1521                         $wgAntivirusSetup[$wgAntivirus]["messagepattern"] : null;
1522
1523                 if ( strpos( $command,"%f" ) === false ) {
1524                         # simple pattern: append file to scan
1525                         $command .= " " . wfEscapeShellArg( $file );
1526                 } else {
1527                         # complex pattern: replace "%f" with file to scan
1528                         $command = str_replace( "%f", wfEscapeShellArg( $file ), $command );
1529                 }
1530
1531                 wfDebug( __METHOD__.": running virus scan: $command \n" );
1532
1533                 # execute virus scanner
1534                 $exitCode = false;
1535
1536                 #NOTE: there's a 50 line workaround to make stderr redirection work on windows, too.
1537                 #      that does not seem to be worth the pain.
1538                 #      Ask me (Duesentrieb) about it if it's ever needed.
1539                 $output = array();
1540                 if ( wfIsWindows() ) {
1541                         exec( "$command", $output, $exitCode );
1542                 } else {
1543                         exec( "$command 2>&1", $output, $exitCode );
1544                 }
1545
1546                 # map exit code to AV_xxx constants.
1547                 $mappedCode = $exitCode;
1548                 if ( $exitCodeMap ) {
1549                         if ( isset( $exitCodeMap[$exitCode] ) ) {
1550                                 $mappedCode = $exitCodeMap[$exitCode];
1551                         } elseif ( isset( $exitCodeMap["*"] ) ) {
1552                                 $mappedCode = $exitCodeMap["*"];
1553                         }
1554                 }
1555
1556                 if ( $mappedCode === AV_SCAN_FAILED ) {
1557                         # scan failed (code was mapped to false by $exitCodeMap)
1558                         wfDebug( __METHOD__.": failed to scan $file (code $exitCode).\n" );
1559
1560                         if ( $wgAntivirusRequired ) {
1561                                 return wfMsg('virus-scanfailed', array( $exitCode ) );
1562                         } else {
1563                                 return NULL;
1564                         }
1565                 } else if ( $mappedCode === AV_SCAN_ABORTED ) {
1566                         # scan failed because filetype is unknown (probably imune)
1567                         wfDebug( __METHOD__.": unsupported file type $file (code $exitCode).\n" );
1568                         return NULL;
1569                 } else if ( $mappedCode === AV_NO_VIRUS ) {
1570                         # no virus found
1571                         wfDebug( __METHOD__.": file passed virus scan.\n" );
1572                         return false;
1573                 } else {
1574                         $output = join( "\n", $output );
1575                         $output = trim( $output );
1576
1577                         if ( !$output ) {
1578                                 $output = true; #if there's no output, return true
1579                         } elseif ( $msgPattern ) {
1580                                 $groups = array();
1581                                 if ( preg_match( $msgPattern, $output, $groups ) ) {
1582                                         if ( $groups[1] ) {
1583                                                 $output = $groups[1];
1584                                         }
1585                                 }
1586                         }
1587
1588                         wfDebug( __METHOD__.": FOUND VIRUS! scanner feedback: $output" );
1589                         return $output;
1590                 }
1591         }
1592
1593         /**
1594          * Check if the temporary file is MacBinary-encoded, as some uploads
1595          * from Internet Explorer on Mac OS Classic and Mac OS X will be.
1596          * If so, the data fork will be extracted to a second temporary file,
1597          * which will then be checked for validity and either kept or discarded.
1598          *
1599          * @access private
1600          */
1601         function checkMacBinary() {
1602                 $macbin = new MacBinary( $this->mTempPath );
1603                 if( $macbin->isValid() ) {
1604                         $dataFile = tempnam( wfTempDir(), "WikiMacBinary" );
1605                         $dataHandle = fopen( $dataFile, 'wb' );
1606
1607                         wfDebug( "SpecialUpload::checkMacBinary: Extracting MacBinary data fork to $dataFile\n" );
1608                         $macbin->extractData( $dataHandle );
1609
1610                         $this->mTempPath = $dataFile;
1611                         $this->mFileSize = $macbin->dataForkLength();
1612
1613                         // We'll have to manually remove the new file if it's not kept.
1614                         $this->mRemoveTempFile = true;
1615                 }
1616                 $macbin->close();
1617         }
1618
1619         /**
1620          * If we've modified the upload file we need to manually remove it
1621          * on exit to clean up.
1622          * @access private
1623          */
1624         function cleanupTempFile() {
1625                 if ( $this->mRemoveTempFile && file_exists( $this->mTempPath ) ) {
1626                         wfDebug( "SpecialUpload::cleanupTempFile: Removing temporary file {$this->mTempPath}\n" );
1627                         unlink( $this->mTempPath );
1628                 }
1629         }
1630
1631         /**
1632          * Check if there's an overwrite conflict and, if so, if restrictions
1633          * forbid this user from performing the upload.
1634          *
1635          * @return mixed true on success, WikiError on failure
1636          * @access private
1637          */
1638         function checkOverwrite( $name ) {
1639                 $img = wfFindFile( $name );
1640
1641                 $error = '';
1642                 if( $img ) {
1643                         global $wgUser, $wgOut;
1644                         if( $img->isLocal() ) {
1645                                 if( !self::userCanReUpload( $wgUser, $img->name ) ) {
1646                                         $error = 'fileexists-forbidden';
1647                                 }
1648                         } else {
1649                                 if( !$wgUser->isAllowed( 'reupload' ) ||
1650                                     !$wgUser->isAllowed( 'reupload-shared' ) ) {
1651                                         $error = "fileexists-shared-forbidden";
1652                                 }
1653                         }
1654                 }
1655
1656                 if( $error ) {
1657                         $errorText = wfMsg( $error, wfEscapeWikiText( $img->getName() ) );
1658                         return $errorText;
1659                 }
1660
1661                 // Rockin', go ahead and upload
1662                 return true;
1663         }
1664
1665          /**
1666          * Check if a user is the last uploader
1667          *
1668          * @param User $user
1669          * @param string $img, image name
1670          * @return bool
1671          */
1672         public static function userCanReUpload( User $user, $img ) {
1673                 if( $user->isAllowed( 'reupload' ) )
1674                         return true; // non-conditional
1675                 if( !$user->isAllowed( 'reupload-own' ) )
1676                         return false;
1677
1678                 $dbr = wfGetDB( DB_SLAVE );
1679                 $row = $dbr->selectRow('image',
1680                 /* SELECT */ 'img_user',
1681                 /* WHERE */ array( 'img_name' => $img )
1682                 );
1683                 if ( !$row )
1684                         return false;
1685
1686                 return $user->getId() == $row->img_user;
1687         }
1688
1689         /**
1690          * Display an error with a wikitext description
1691          */
1692         function showError( $description ) {
1693                 global $wgOut;
1694                 $wgOut->setPageTitle( wfMsg( "internalerror" ) );
1695                 $wgOut->setRobotPolicy( "noindex,nofollow" );
1696                 $wgOut->setArticleRelated( false );
1697                 $wgOut->enableClientCache( false );
1698                 $wgOut->addWikiText( $description );
1699         }
1700
1701         /**
1702          * Get the initial image page text based on a comment and optional file status information
1703          */
1704         static function getInitialPageText( $comment, $license, $copyStatus, $source ) {
1705                 global $wgUseCopyrightUpload;
1706                 if ( $wgUseCopyrightUpload ) {
1707                         if ( $license != '' ) {
1708                                 $licensetxt = '== ' . wfMsgForContent( 'license' ) . " ==\n" . '{{' . $license . '}}' . "\n";
1709                         }
1710                         $pageText = '== ' . wfMsg ( 'filedesc' ) . " ==\n" . $comment . "\n" .
1711                           '== ' . wfMsgForContent ( 'filestatus' ) . " ==\n" . $copyStatus . "\n" .
1712                           "$licensetxt" .
1713                           '== ' . wfMsgForContent ( 'filesource' ) . " ==\n" . $source ;
1714                 } else {
1715                         if ( $license != '' ) {
1716                                 $filedesc = $comment == '' ? '' : '== ' . wfMsg ( 'filedesc' ) . " ==\n" . $comment . "\n";
1717                                  $pageText = $filedesc .
1718                                          '== ' . wfMsgForContent ( 'license' ) . " ==\n" . '{{' . $license . '}}' . "\n";
1719                         } else {
1720                                 $pageText = $comment;
1721                         }
1722                 }
1723                 return $pageText;
1724         }
1725
1726         /**
1727          * If there are rows in the deletion log for this file, show them,
1728          * along with a nice little note for the user
1729          *
1730          * @param OutputPage $out
1731          * @param string filename
1732          */
1733         private function showDeletionLog( $out, $filename ) {
1734                 global $wgUser;
1735                 $loglist = new LogEventsList( $wgUser->getSkin(), $out );
1736                 $pager = new LogPager( $loglist, 'delete', false, $filename );
1737                 if( $pager->getNumRows() > 0 ) {
1738                         $out->addHtml( '<div class="mw-warning-with-logexcerpt">' );
1739                         $out->addWikiMsg( 'upload-wasdeleted' );
1740                         $out->addHTML(
1741                                 $loglist->beginLogEventsList() .
1742                                 $pager->getBody() .
1743                                 $loglist->endLogEventsList()
1744                         );
1745                         $out->addHtml( '</div>' );
1746                 }
1747         }
1748 }