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         /**#@+
  23          * @access private
  24          */
  25         var $mComment, $mLicense, $mIgnoreWarning;
  26         var $mCopyrightStatus, $mCopyrightSource, $mReUpload, $mAction, $mUploadClicked;
  27         var $mDestWarningAck;
  28         var $mLocalFile;
  29
  30         var $mUpload;   // Instance of UploadFromBase or derivative
  31
  32         # Placeholders for text injection by hooks (must be HTML)
  33         # extensions should take care to _append_ to the present value
  34         var $uploadFormTextTop;
  35         var $uploadFormTextAfterSummary;
  36
  37         /**#@-*/
  38
  39         /**
  40          * Constructor : initialise object
  41          * Get data POSTed through the form and assign them to the object
  42          * @param $request Data posted.
  43          */
  44         function __construct( &$request ) {
  45                 global $wgAllowCopyUploads;
  46                 $this->mDesiredDestName   = $request->getText( 'wpDestFile' );
  47                 $this->mIgnoreWarning     = $request->getCheck( 'wpIgnoreWarning' );
  48                 $this->mComment           = $request->getText( 'wpUploadDescription' );
  49
  50                 if( !$request->wasPosted() ) {
  51                         # GET requests just give the main form; no data except destination
  52                         # filename and description
  53                         return;
  54                 }
  55
  56                 # Placeholders for text injection by hooks (empty per default)
  57                 $this->uploadFormTextTop = "";
  58                 $this->uploadFormTextAfterSummary = "";
  59
  60                 $this->mReUpload          = $request->getCheck( 'wpReUpload' );
  61                 $this->mUploadClicked     = $request->getCheck( 'wpUpload' );
  62
  63                 $this->mLicense           = $request->getText( 'wpLicense' );
  64                 $this->mCopyrightStatus   = $request->getText( 'wpUploadCopyStatus' );
  65                 $this->mCopyrightSource   = $request->getText( 'wpUploadSource' );
  66                 $this->mWatchthis         = $request->getBool( 'wpWatchthis' );
  67                 $this->mSourceType        = $request->getText( 'wpSourceType' );
  68                 $this->mDestWarningAck    = $request->getText( 'wpDestFileWarningAck' );
  69
  70                 $this->mAction            = $request->getVal( 'action' );
  71
  72                 $desiredDestName = $request->getText( 'wpDestFile' );
  73                 if( !$desiredDestName )
  74                         $desiredDestName = $request->getText( 'wpUploadFile' );
  75
  76                 $this->mSessionKey        = $request->getInt( 'wpSessionKey' );
  77                 if( !empty( $this->mSessionKey ) &&
  78                                 isset( $_SESSION['wsUploadData'][$this->mSessionKey]['version'] ) &&
  79                                 $_SESSION['wsUploadData'][$this->mSessionKey]['version'] ==
  80                                         UploadFromBase::SESSION_VERSION ) {
  81                         /**
  82                          * Confirming a temporarily stashed upload.
  83                          * We don't want path names to be forged, so we keep
  84                          * them in the session on the server and just give
  85                          * an opaque key to the user agent.
  86                          */
  87
  88                         $this->mUpload = new UploadFromStash( $desiredDestName );
  89                         $data = $_SESSION['wsUploadData'][$this->mSessionKey];
  90                         $this->mUpload->initialize( $data );
  91
  92                 } else {
  93                         /**
  94                          *Check for a newly uploaded file.
  95                          */
  96                         if( $wgAllowCopyUploads && $this->mSourceType == 'web' ) {
  97                                 $this->mUpload = new UploadFromUrl( $desiredDestName );
  98                                 $this->mUpload->initialize( $request->getText( 'wpUploadFileURL' ) );
  99                         } else {
 100                                 $this->mUpload = new UploadFromUpload( $desiredDestName );
 101                                 $this->mUpload->initialize(
 102                                         $request->getFileTempName( 'wpUploadFile' ),
 103                                         $request->getFileSize( 'wpUploadFile' ),
 104                                         $request->getFileName( 'wpUploadFile' )
 105                                 );
 106                         }
 107                 }
 108         }
 109
 110
 111
 112         /**
 113          * Start doing stuff
 114          * @access public
 115          */
 116         function execute() {
 117                 global $wgUser, $wgOut;
 118                 global $wgEnableUploads;
 119
 120                 # Check uploading enabled
 121                 if( !$wgEnableUploads ) {
 122                         $wgOut->showErrorPage( 'uploaddisabled', 'uploaddisabledtext', array( $this->mDesiredDestName ) );
 123                         return;
 124                 }
 125
 126                 # Check permissions
 127                 if( !$wgUser->isAllowed( 'upload' ) ) {
 128                         if( !$wgUser->isLoggedIn() ) {
 129                                 $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
 130                         } else {
 131                                 $wgOut->permissionRequired( 'upload' );
 132                         }
 133                         return;
 134                 }
 135
 136                 # Check blocks
 137                 if( $wgUser->isBlocked() ) {
 138                         $wgOut->blockedPage();
 139                         return;
 140                 }
 141
 142                 if( wfReadOnly() ) {
 143                         $wgOut->readOnlyPage();
 144                         return;
 145                 }
 146
 147                 if( $this->mReUpload ) {
 148                         // User did not choose to ignore warnings
 149                         if( !$this->mUpload->unsaveUploadedFile() ) {
 150                                 return;
 151                         }
 152                         # Because it is probably checked and shouldn't be
 153                         $this->mIgnoreWarning = false;
 154
 155                         $this->mainUploadForm();
 156                 } elseif( $this->mUpload && (
 157                                         'submit' == $this->mAction ||
 158                                         $this->mUploadClicked
 159                                 ) ) {
 160                         $this->processUpload();
 161                 } else {
 162                         $this->mainUploadForm();
 163                 }
 164
 165                 if( $this->mUpload )
 166                         $this->mUpload->cleanupTempFile();
 167         }
 168
 169         /**
 170          * Do the upload
 171          * Checks are made in SpecialUpload::execute()
 172          *
 173          * @access private
 174          */
 175         function processUpload(){
 176                 global $wgUser, $wgOut, $wgFileExtensions, $wgLang;
 177                 $details = null;
 178                 $value = null;
 179                 $value = $this->internalProcessUpload( $details );
 180                 header("X-Internal-Process-Upload: $value");
 181
 182                 switch($value) {
 183                         case UploadFromBase::SUCCESS:
 184                                 $wgOut->redirect( $this->mLocalFile->getTitle()->getFullURL() );
 185                                 break;
 186
 187                         case UploadFromBase::BEFORE_PROCESSING:
 188                                 // Do... nothing? Why?
 189                                 break;
 190
 191                         case UploadFromBase::LARGE_FILE_SERVER:
 192                                 $this->mainUploadForm( wfMsgHtml( 'largefileserver' ) );
 193                                 break;
 194
 195                         case UploadFromBase::EMPTY_FILE:
 196                                 $this->mainUploadForm( wfMsgHtml( 'emptyfile' ) );
 197                                 break;
 198
 199                         case UploadFromBase::MIN_LENGHT_PARTNAME:
 200                                 $this->mainUploadForm( wfMsgHtml( 'minlength1' ) );
 201                                 break;
 202
 203                         case UploadFromBase::ILLEGAL_FILENAME:
 204                                 $this->uploadError( wfMsgExt( 'illegalfilename',
 205                                         'parseinline', $details['filtered'] ) );
 206                                 break;
 207
 208                         case UploadFromBase::PROTECTED_PAGE:
 209                                 $wgOut->showPermissionsErrorPage( $details['permissionserrors'] );
 210                                 break;
 211
 212                         case UploadFromBase::OVERWRITE_EXISTING_FILE:
 213                                 $this->uploadError( wfMsgExt( $details['overwrite'],
 214                                         'parseinline' ) );
 215                                 break;
 216
 217                         case UploadFromBase::FILETYPE_MISSING:
 218                                 $this->uploadError( wfMsgExt( 'filetype-missing', array ( 'parseinline' ) ) );
 219                                 break;
 220
 221                         case UploadFromBase::FILETYPE_BADTYPE:
 222                                 $finalExt = $details['finalExt'];
 223                                 $this->uploadError(
 224                                         wfMsgExt( 'filetype-banned-type',
 225                                                 array( 'parseinline' ),
 226                                                 htmlspecialchars( $finalExt ),
 227                                                 implode(
 228                                                         wfMsgExt( 'comma-separator', array( 'escapenoentities' ) ),
 229                                                         $wgFileExtensions
 230                                                 ),
 231                                                 $wgLang->formatNum( count( $wgFileExtensions ) )
 232                                         )
 233                                 );
 234                                 break;
 235
 236                         case UploadFromBase::VERIFICATION_ERROR:
 237                                 $args = $details['veri'];
 238                                 $code = array_shift( $args );
 239                                 $this->uploadError( wfMsgExt( $code, 'parseinline', $args ) );
 240                                 break;
 241
 242                         case UploadFromBase::UPLOAD_VERIFICATION_ERROR:
 243                                 $error = $details['error'];
 244                                 $this->uploadError( wfMsgExt( $error, 'parseinline' ) );
 245                                 break;
 246
 247                         case UploadFromBase::UPLOAD_WARNING:
 248                                 $warning = $details['warning'];
 249                                 $this->uploadWarning( $warning );
 250                                 break;
 251
 252                         case UploadFromBase::INTERNAL_ERROR:
 253                                 $status = $details['internal'];
 254                                 $this->showError( $wgOut->parse( $status->getWikiText() ) );
 255                                 break;
 256
 257                         default:
 258                                 throw new MWException( __METHOD__ . ": Unknown value `{$value}`" );
 259                 }
 260         }
 261
 262         /**
 263          * Really do the upload
 264          * Checks are made in SpecialUpload::execute()
 265          *
 266          * @param array $resultDetails contains result-specific dict of additional values
 267          *
 268          * @access private
 269          */
 270         function internalProcessUpload( &$resultDetails ) {
 271                 global $wgUser;
 272
 273                 if( !wfRunHooks( 'UploadForm:BeforeProcessing', array( &$this ) ) )
 274                 {
 275                         wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file." );
 276                         return UploadFromBase::BEFORE_PROCESSING;
 277                 }
 278
 279                 $nt = $this->mUpload->getTitle();
 280                 // Hold back returning errors for a bit so that verifyUpload can fill in the details
 281                 if ( $nt instanceof Title ) {
 282                         /**
 283                          * If the image is protected, non-sysop users won't be able
 284                          * to modify it by uploading a new revision.
 285                          */
 286                         $permErrors = $this->mUpload->verifyPermissions( $wgUser );
 287                         if( $permErrors !== true ) {
 288                                 $resultDetails = array( 'permissionserrors' => $permErrors );
 289                                 return UploadFromBase::PROTECTED_PAGE;
 290                         }
 291                 }
 292
 293                 // Check whether this is a sane upload
 294                 $result = $this->mUpload->verifyUpload( $resultDetails );
 295                 if( $result != UploadFromBase::OK )
 296                         return $result;
 297
 298                 $this->mLocalFile = $this->mUpload->getLocalFile();
 299
 300                 if( !$this->mIgnoreWarning ) {
 301                         $warnings = $this->mUpload->checkWarnings();
 302
 303                         if( count( $warnings ) ) {
 304                                 $resultDetails = array( 'warning' => $warnings );
 305                                 return UploadFromBase::UPLOAD_WARNING;
 306                         }
 307                 }
 308
 309
 310                 /**
 311                  * Try actually saving the thing...
 312                  * It will show an error form on failure. No it will not.
 313                  */
 314                 $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
 315                         $this->mCopyrightStatus, $this->mCopyrightSource );
 316
 317                 $status = $this->mUpload->performUpload( $this->mComment, $pageText, $this->mWatchthis, $wgUser );
 318
 319                 if ( !$status->isGood() ) {
 320                         $resultDetails = array( 'internal' => $status );
 321                         return UploadFromBase::INTERNAL_ERROR;
 322                 } else {
 323                         // Success, redirect to description page
 324                         // WTF WTF WTF?
 325                         $img = null; // @todo: added to avoid passing a ref to null - should this be defined somewhere?
 326                         wfRunHooks( 'SpecialUploadComplete', array( &$this ) );
 327                         return UploadFromBase::SUCCESS;
 328                 }
 329         }
 330
 331         /**
 332          * Do existence checks on a file and produce a warning
 333          * This check is static and can be done pre-upload via AJAX
 334          * Returns an HTML fragment consisting of one or more LI elements if there is a warning
 335          * Returns an empty string if there is no warning
 336          */
 337         static function getExistsWarning( $exists ) {
 338                 global $wgUser, $wgContLang;
 339
 340                 if( $exists === false )
 341                         return '';
 342
 343                 $warning = '';
 344                 $align = $wgContLang->isRtl() ? 'left' : 'right';
 345
 346                 list( $existsType, $file ) = $exists;
 347
 348                 $sk = $wgUser->getSkin();
 349
 350                 if( $existsType == 'exists' ) {
 351                         // Exact match
 352                         $dlink = $sk->makeKnownLinkObj( $file->getTitle() );
 353                         if ( $file->allowInlineDisplay() ) {
 354                                 $dlink2 = $sk->makeImageLinkObj( $file->getTitle(), wfMsgExt( 'fileexists-thumb', 'parseinline' ),
 355                                         $file->getName(), $align, array(), false, true );
 356                         } elseif ( !$file->allowInlineDisplay() && $file->isSafeFile() ) {
 357                                 $icon = $file->iconThumb();
 358                                 $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
 359                                         $icon->toHtml( array( 'desc-link' => true ) ) . '<br />' . $dlink . '</div>';
 360                         } else {
 361                                 $dlink2 = '';
 362                         }
 363
 364                         $warning .= '<li>' . wfMsgExt( 'fileexists', array('parseinline','replaceafter'), $dlink ) . '</li>' . $dlink2;
 365
 366                 } elseif( $existsType == 'page-exists' ) {
 367                         $lnk = $sk->makeKnownLinkObj( $file->getTitle(), '', 'redirect=no' );
 368                         $warning .= '<li>' . wfMsgExt( 'filepageexists', array( 'parseinline', 'replaceafter' ), $lnk ) . '</li>';
 369                 } elseif ( $existsType == 'exists-normalized' ) {
 370                         # Check if image with lowercase extension exists.
 371                         # It's not forbidden but in 99% it makes no sense to upload the same filename with uppercase extension
 372                         $dlink = $sk->makeKnownLinkObj( $file->getTitle() );
 373                         if ( $file->allowInlineDisplay() ) {
 374                                 $dlink2 = $sk->makeImageLinkObj( $file->getTitle(), wfMsgExt( 'fileexists-thumb', 'parseinline' ),
 375                                         $file->getTitle()->getText(), $align, array(), false, true );
 376                         } elseif ( !$file->allowInlineDisplay() && $file->isSafeFile() ) {
 377                                 $icon = $file->iconThumb();
 378                                 $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
 379                                         $icon->toHtml( array( 'desc-link' => true ) ) . '<br />' . $dlink . '</div>';
 380                         } else {
 381                                 $dlink2 = '';
 382                         }
 383
 384                         $warning .= '<li>' .
 385                                 wfMsgExt( 'fileexists-extension', 'parsemag',
 386                                         $file->getTitle()->getPrefixedText(), $dlink ) .
 387                                 '</li>' . $dlink2;
 388
 389                 } elseif ( $existsType == 'thumb' ) {
 390                         # Check if an image without leading '180px-' (or similiar) exists
 391                         $dlink = $sk->makeKnownLinkObj( $file->getTitle() );
 392                         if ( $file->allowInlineDisplay() ) {
 393                                 $dlink2 = $sk->makeImageLinkObj( $file->getTitle(),
 394                                         wfMsgExt( 'fileexists-thumb', 'parseinline' ),
 395                                         $file->getTitle()->getText(), $align, array(), false, true );
 396                         } elseif ( !$file->allowInlineDisplay() && $file->isSafeFile() ) {
 397                                 $icon = $file->iconThumb();
 398                                 $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
 399                                         $icon->toHtml( array( 'desc-link' => true ) ) . '<br />' .
 400                                         $dlink . '</div>';
 401                         } else {
 402                                 $dlink2 = '';
 403                         }
 404                         $warning .= '<li>' . wfMsgExt( 'fileexists-thumbnail-yes', 'parsemag', $dlink ) .
 405                                 '</li>' . $dlink2;
 406                 }
 407                 return $warning;
 408         }
 409
 410         /**
 411          * Get a list of warnings
 412          *
 413          * @param string local filename, e.g. 'file exists', 'non-descriptive filename'
 414          * @return array list of warning messages
 415          */
 416         static function ajaxGetExistsWarning( $filename ) {
 417                 $file = wfFindFile( $filename );
 418                 if( !$file ) {
 419                         // Force local file so we have an object to do further checks against
 420                         // if there isn't an exact match...
 421                         $file = wfLocalFile( $filename );
 422                 }
 423                 $s = '&nbsp;';
 424                 if ( $file ) {
 425                         $exists = UploadFromBase::getExistsWarning( $file );
 426                         $warning = self::getExistsWarning( $exists );
 427                         // FIXME: We probably also want the prefix blacklist and the wasdeleted check here
 428                         if ( $warning !== '' ) {
 429                                 $s = "<ul>$warning</ul>";
 430                         }
 431                 }
 432                 return $s;
 433         }
 434
 435         /**
 436          * Render a preview of a given license for the AJAX preview on upload
 437          *
 438          * @param string $license
 439          * @return string
 440          */
 441         public static function ajaxGetLicensePreview( $license ) {
 442                 global $wgParser, $wgUser;
 443                 $text = '{{' . $license . '}}';
 444                 $title = Title::makeTitle( NS_IMAGE, 'Sample.jpg' );
 445                 $options = ParserOptions::newFromUser( $wgUser );
 446
 447                 // Expand subst: first, then live templates...
 448                 $text = $wgParser->preSaveTransform( $text, $title, $wgUser, $options );
 449                 $output = $wgParser->parse( $text, $title, $options );
 450
 451                 return $output->getText();
 452         }
 453
 454         /**
 455          * Check for duplicate files and throw up a warning before the upload
 456          * completes.
 457          */
 458         public static function getDupeWarning( $dupes ) {
 459                 if( $dupes ) {
 460                         global $wgOut;
 461                         $msg = "<gallery>";
 462                         foreach( $dupes as $file ) {
 463                                 $title = $file->getTitle();
 464                                 $msg .= $title->getPrefixedText() .
 465                                         "|" . $title->getText() . "\n";
 466                         }
 467                         $msg .= "</gallery>";
 468                         return "<li>" .
 469                                 wfMsgExt( "file-exists-duplicate", array( "parse" ), count( $dupes ) ) .
 470                                 $wgOut->parse( $msg ) .
 471                                 "</li>\n";
 472                 } else {
 473                         return '';
 474                 }
 475         }
 476
 477         /**
 478          * Remove a temporarily kept file stashed by saveTempUploadedFile().
 479          * @access private
 480          * @return success
 481          */
 482         function unsaveUploadedFile() {
 483                 global $wgOut;
 484                 $success = $this->mUpload->unsaveUploadedFile();
 485                 if ( ! $success ) {
 486                         $wgOut->showFileDeleteError( $this->mUpload->getTempPath() );
 487                         return false;
 488                 } else {
 489                         return true;
 490                 }
 491         }
 492
 493         /* -------------------------------------------------------------- */
 494
 495         /**
 496          * @param string $error as HTML
 497          * @access private
 498          */
 499         function uploadError( $error ) {
 500                 global $wgOut;
 501                 $wgOut->addHTML( '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" );
 502                 $wgOut->addHTML( '<span class="error">' . $error . '</span>' );
 503         }
 504
 505         /**
 506          * There's something wrong with this file, not enough to reject it
 507          * totally but we require manual intervention to save it for real.
 508          * Stash it away, then present a form asking to confirm or cancel.
 509          *
 510          * @param string $warning as HTML
 511          * @access private
 512          */
 513         function uploadWarning( $warnings ) {
 514                 global $wgOut;
 515                 global $wgUseCopyrightUpload;
 516
 517                 $this->mSessionKey = $this->mUpload->stashSession();
 518                 if( !$this->mSessionKey ) {
 519                         # Couldn't save file; an error has been displayed so let's go.
 520                         return;
 521                 }
 522
 523                 $wgOut->addHTML( '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" );
 524                 $wgOut->addHTML( '<ul class="warning">' );
 525                 foreach( $warnings as $warning => $args ) {
 526                                 $msg = null;
 527                                 if( $warning == 'exists' ) {
 528                                         if ( !$this->mDestWarningAck )
 529                                                 $msg = self::getExistsWarning( $args );
 530                                 } elseif( $warning == 'duplicate' ) {
 531                                         $msg = $this->getDupeWarning( $args );
 532                                 } elseif( $warning == 'filewasdeleted' ) {
 533                                         $ltitle = SpecialPage::getTitleFor( 'Log' );
 534                                         $llink = $sk->makeKnownLinkObj( $ltitle, wfMsgHtml( 'deletionlog' ),
 535                                                 'type=delete&page=' . $file->getTitle()->getPrefixedUrl() );
 536                                         $msg = "\t<li>" . wfMsgWikiHtml( 'filewasdeleted', $llink ) . "</li>\n";
 537                                 } else {
 538                                         if( is_bool( $args ) )
 539                                                 $args = array();
 540                                         elseif( !is_array( $args ) )
 541                                                 $args = array( $args );
 542                                         $msg = "\t<li>" . wfMsgExt( $warning, 'parseinline', $args ) . "</li>\n";
 543                                 }
 544                                 if( $msg )
 545                                         $wgOut->addHTML( $msg );
 546                 }
 547
 548                 $titleObj = SpecialPage::getTitleFor( 'Upload' );
 549
 550                 if ( $wgUseCopyrightUpload ) {
 551                         $copyright = Xml::hidden( 'wpUploadCopyStatus', $this->mCopyrightStatus ) . "\n" .
 552                                         Xml::hidden( 'wpUploadSource', $this->mCopyrightSource ) . "\n";
 553                 } else {
 554                         $copyright = '';
 555                 }
 556
 557                 $wgOut->addHTML(
 558                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL( 'action=submit' ),
 559                                  'enctype' => 'multipart/form-data', 'id' => 'uploadwarning' ) ) . "\n" .
 560                         Xml::hidden( 'wpIgnoreWarning', '1' ) . "\n" .
 561                         Xml::hidden( 'wpSessionKey', $this->mSessionKey ) . "\n" .
 562                         Xml::hidden( 'wpUploadDescription', $this->mComment ) . "\n" .
 563                         Xml::hidden( 'wpLicense', $this->mLicense ) . "\n" .
 564                         Xml::hidden( 'wpDestFile', $this->mDesiredDestName ) . "\n" .
 565                         Xml::hidden( 'wpWatchthis', $this->mWatchthis ) . "\n" .
 566                         "{$copyright}<br />" .
 567                         Xml::submitButton( wfMsg( 'ignorewarning' ), array ( 'name' => 'wpUpload', 'id' => 'wpUpload', 'checked' => 'checked' ) ) . ' ' .
 568                         Xml::submitButton( wfMsg( 'reuploaddesc' ), array ( 'name' => 'wpReUpload', 'id' => 'wpReUpload' ) ) .
 569                         Xml::closeElement( 'form' ) . "\n"
 570                 );
 571         }
 572
 573         /**
 574          * Displays the main upload form, optionally with a highlighted
 575          * error message up at the top.
 576          *
 577          * @param string $msg as HTML
 578          * @access private
 579          */
 580         function mainUploadForm( $msg='' ) {
 581                 global $wgOut, $wgUser, $wgLang, $wgMaxUploadSize;
 582                 global $wgUseCopyrightUpload, $wgUseAjax, $wgAjaxUploadDestCheck, $wgAjaxLicensePreview;
 583                 global $wgRequest, $wgAllowCopyUploads;
 584                 global $wgStylePath, $wgStyleVersion;
 585
 586                 $useAjaxDestCheck = $wgUseAjax && $wgAjaxUploadDestCheck;
 587                 $useAjaxLicensePreview = $wgUseAjax && $wgAjaxLicensePreview;
 588
 589                 $adc = wfBoolToStr( $useAjaxDestCheck );
 590                 $alp = wfBoolToStr( $useAjaxLicensePreview );
 591                 $autofill = wfBoolToStr( $this->mDesiredDestName == '' );
 592
 593                 $wgOut->addScript( "<script type=\"text/javascript\">
 594 wgAjaxUploadDestCheck = {$adc};
 595 wgAjaxLicensePreview = {$alp};
 596 wgUploadAutoFill = {$autofill};
 597 </script>" );
 598                 $wgOut->addScriptFile( 'upload.js' );
 599                 $wgOut->addScriptFile( 'edit.js' ); // For <charinsert> support
 600
 601                 if( !wfRunHooks( 'UploadForm:initial', array( &$this ) ) )
 602                 {
 603                         wfDebug( "Hook 'UploadForm:initial' broke output of the upload form" );
 604                         return false;
 605                 }
 606
 607                 if( $this->mDesiredDestName ) {
 608                         $title = Title::makeTitleSafe( NS_IMAGE, $this->mDesiredDestName );
 609                         // Show a subtitle link to deleted revisions (to sysops et al only)
 610                         if( $title instanceof Title && ( $count = $title->isDeleted() ) > 0 && $wgUser->isAllowed( 'deletedhistory' ) ) {
 611                                 $link = wfMsgExt(
 612                                         $wgUser->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted',
 613                                         array( 'parse', 'replaceafter' ),
 614                                         $wgUser->getSkin()->makeKnownLinkObj(
 615                                                 SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
 616                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $count )
 617                                         )
 618                                 );
 619                                 $wgOut->addHtml( "<div id=\"contentSub2\">{$link}</div>" );
 620                         }
 621
 622                         // Show the relevant lines from deletion log (for still deleted files only)
 623                         if( $title instanceof Title && $title->isDeleted() > 0 && !$title->exists() ) {
 624                                 $this->showDeletionLog( $wgOut, $title->getPrefixedText() );
 625                         }
 626                 }
 627
 628                 $cols = intval($wgUser->getOption( 'cols' ));
 629
 630                 if( $wgUser->getOption( 'editwidth' ) ) {
 631                         $width = " style=\"width:100%\"";
 632                 } else {
 633                         $width = '';
 634                 }
 635
 636                 if ( '' != $msg ) {
 637                         $sub = wfMsgHtml( 'uploaderror' );
 638                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" .
 639                           "<span class='error'>{$msg}</span>\n" );
 640                 }
 641                 $wgOut->addHTML( '<div id="uploadtext">' );
 642                 $wgOut->addWikiMsg( 'uploadtext', $this->mDesiredDestName );
 643                 $wgOut->addHTML( "</div>\n" );
 644
 645                 # Print a list of allowed file extensions, if so configured.  We ignore
 646                 # MIME type here, it's incomprehensible to most people and too long.
 647                 global $wgCheckFileExtensions, $wgStrictFileExtensions,
 648                 $wgFileExtensions, $wgFileBlacklist;
 649
 650                 $allowedExtensions = '';
 651                 if( $wgCheckFileExtensions ) {
 652                         $delim = wfMsgExt( 'comma-separator', array( 'escapenoentities' ) );
 653                         if( $wgStrictFileExtensions ) {
 654                                 # Everything not permitted is banned
 655                                 $extensionsList =
 656                                         '<div id="mw-upload-permitted">' .
 657                                         wfMsgWikiHtml( 'upload-permitted', implode( $wgFileExtensions, $delim ) ) .
 658                                         "</div>\n";
 659                         } else {
 660                                 # We have to list both preferred and prohibited
 661                                 $extensionsList =
 662                                         '<div id="mw-upload-preferred">' .
 663                                         wfMsgWikiHtml( 'upload-preferred', implode( $wgFileExtensions, $delim ) ) .
 664                                         "</div>\n" .
 665                                         '<div id="mw-upload-prohibited">' .
 666                                         wfMsgWikiHtml( 'upload-prohibited', implode( $wgFileBlacklist, $delim ) ) .
 667                                         "</div>\n";
 668                         }
 669                 } else {
 670                         # Everything is permitted.
 671                         $extensionsList = '';
 672                 }
 673
 674                 # Get the maximum file size from php.ini as $wgMaxUploadSize works for uploads from URL via CURL only
 675                 # See http://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize for possible values of upload_max_filesize
 676                 $val = trim( ini_get( 'upload_max_filesize' ) );
 677                 $last = strtoupper( ( substr( $val, -1 ) ) );
 678                 switch( $last ) {
 679                         case 'G':
 680                                 $val2 = substr( $val, 0, -1 ) * 1024 * 1024 * 1024;
 681                                 break;
 682                         case 'M':
 683                                 $val2 = substr( $val, 0, -1 ) * 1024 * 1024;
 684                                 break;
 685                         case 'K':
 686                                 $val2 = substr( $val, 0, -1 ) * 1024;
 687                                 break;
 688                         default:
 689                                 $val2 = $val;
 690                 }
 691                 $val2 = $wgAllowCopyUploads ? min( $wgMaxUploadSize, $val2 ) : $val2;
 692                 $maxUploadSize = '<div id="mw-upload-maxfilesize">' .
 693                         wfMsgExt( 'upload-maxfilesize', array( 'parseinline', 'escapenoentities' ),
 694                                 $wgLang->formatSize( $val2 ) ) .
 695                                 "</div>\n";
 696
 697                 $sourcefilename = wfMsgExt( 'sourcefilename', array( 'parseinline', 'escapenoentities' ) );
 698         $destfilename = wfMsgExt( 'destfilename', array( 'parseinline', 'escapenoentities' ) );
 699
 700                 $summary = wfMsgExt( 'fileuploadsummary', 'parseinline' );
 701
 702                 $licenses = new Licenses();
 703                 $license = wfMsgExt( 'license', array( 'parseinline' ) );
 704                 $nolicense = wfMsgHtml( 'nolicense' );
 705                 $licenseshtml = $licenses->getHtml();
 706
 707                 $ulb = wfMsgHtml( 'uploadbtn' );
 708
 709
 710                 $titleObj = SpecialPage::getTitleFor( 'Upload' );
 711
 712                 $encDestName = htmlspecialchars( $this->mDesiredDestName );
 713
 714                 $watchChecked = $this->watchCheck()
 715                         ? 'checked="checked"'
 716                         : '';
 717                 $warningChecked = $this->mIgnoreWarning ? 'checked' : '';
 718
 719                 // Prepare form for upload or upload/copy
 720                 if( $wgAllowCopyUploads && $wgUser->isAllowed( 'upload_by_url' ) ) {
 721                         $filename_form =
 722                                 "<input type='radio' id='wpSourceTypeFile' name='wpSourceType' value='file' " .
 723                                    "onchange='toggle_element_activation(\"wpUploadFileURL\",\"wpUploadFile\")' checked='checked' />" .
 724                                  "<input tabindex='1' type='file' name='wpUploadFile' id='wpUploadFile' " .
 725                                    "onfocus='" .
 726                                      "toggle_element_activation(\"wpUploadFileURL\",\"wpUploadFile\");" .
 727                                      "toggle_element_check(\"wpSourceTypeFile\",\"wpSourceTypeURL\")' " .
 728                                      "onchange='fillDestFilename(\"wpUploadFile\")' size='60' />" .
 729                                 wfMsgHTML( 'upload_source_file' ) . "<br/>" .
 730                                 "<input type='radio' id='wpSourceTypeURL' name='wpSourceType' value='web' " .
 731                                   "onchange='toggle_element_activation(\"wpUploadFile\",\"wpUploadFileURL\")' />" .
 732                                 "<input tabindex='1' type='text' name='wpUploadFileURL' id='wpUploadFileURL' " .
 733                                   "onfocus='" .
 734                                     "toggle_element_activation(\"wpUploadFile\",\"wpUploadFileURL\");" .
 735                                     "toggle_element_check(\"wpSourceTypeURL\",\"wpSourceTypeFile\")' " .
 736                                     "onchange='fillDestFilename(\"wpUploadFileURL\")' size='60' disabled='disabled' />" .
 737                                 wfMsgHtml( 'upload_source_url' ) ;
 738                 } else {
 739                         $filename_form =
 740                                 "<input tabindex='1' type='file' name='wpUploadFile' id='wpUploadFile' " .
 741                                 ($this->mDesiredDestName?"":"onchange='fillDestFilename(\"wpUploadFile\")' ") .
 742                                 "size='60' />" .
 743                                 "<input type='hidden' name='wpSourceType' value='file' />" ;
 744                 }
 745                 if ( $useAjaxDestCheck ) {
 746                         $warningRow = "<tr><td colspan='2' id='wpDestFile-warning'>&nbsp;</td></tr>";
 747                         $destOnkeyup = 'onkeyup="wgUploadWarningObj.keypress();"';
 748                 } else {
 749                         $warningRow = '';
 750                         $destOnkeyup = '';
 751                 }
 752
 753                 $encComment = htmlspecialchars( $this->mComment );
 754
 755                 $wgOut->addHTML(
 756                          Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL(),
 757                                  'enctype' => 'multipart/form-data', 'id' => 'mw-upload-form' ) ) .
 758                          Xml::openElement( 'fieldset' ) .
 759                          Xml::element( 'legend', null, wfMsg( 'upload' ) ) .
 760                          Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-upload-table' ) ) .
 761                          "<tr>
 762                                 {$this->uploadFormTextTop}
 763                                 <td class='mw-label'>
 764                                         <label for='wpUploadFile'>{$sourcefilename}</label>
 765                                 </td>
 766                                 <td class='mw-input'>
 767                                         {$filename_form}
 768                                 </td>
 769                         </tr>
 770                         <tr>
 771                                 <td></td>
 772                                 <td>
 773                                         {$maxUploadSize}
 774                                         {$extensionsList}
 775                                 </td>
 776                         </tr>
 777                         <tr>
 778                                 <td class='mw-label'>
 779                                         <label for='wpDestFile'>{$destfilename}</label>
 780                                 </td>
 781                                 <td class='mw-input'>
 782                                         <input tabindex='2' type='text' name='wpDestFile' id='wpDestFile' size='60'
 783                                                 value=\"{$encDestName}\" onchange='toggleFilenameFiller()' $destOnkeyup />
 784                                 </td>
 785                         </tr>
 786                         <tr>
 787                                 <td class='mw-label'>
 788                                         <label for='wpUploadDescription'>{$summary}</label>
 789                                 </td>
 790                                 <td class='mw-input'>
 791                                         <textarea tabindex='3' name='wpUploadDescription' id='wpUploadDescription' rows='6'
 792                                                 cols='{$cols}'{$width}>$encComment</textarea>
 793                                         {$this->uploadFormTextAfterSummary}
 794                                 </td>
 795                         </tr>
 796                         <tr>"
 797                 );
 798
 799                 if ( $licenseshtml != '' ) {
 800                         global $wgStylePath;
 801                         $wgOut->addHTML( "
 802                                         <td class='mw-label'>
 803                                                 <label for='wpLicense'>$license</label>
 804                                         </td>
 805                                         <td class='mw-input'>
 806                                                 <select name='wpLicense' id='wpLicense' tabindex='4'
 807                                                         onchange='licenseSelectorCheck()'>
 808                                                         <option value=''>$nolicense</option>
 809                                                         $licenseshtml
 810                                                 </select>
 811                                         </td>
 812                                 </tr>
 813                                 <tr>"
 814                         );
 815                         if( $useAjaxLicensePreview ) {
 816                                 $wgOut->addHtml( "
 817                                                 <td></td>
 818                                                 <td id=\"mw-license-preview\"></td>
 819                                         </tr>
 820                                         <tr>"
 821                                 );
 822                         }
 823                 }
 824
 825                 if ( $wgUseCopyrightUpload ) {
 826                         $filestatus = wfMsgExt( 'filestatus', 'escapenoentities' );
 827                         $copystatus =  htmlspecialchars( $this->mCopyrightStatus );
 828                         $filesource = wfMsgExt( 'filesource', 'escapenoentities' );
 829                         $uploadsource = htmlspecialchars( $this->mCopyrightSource );
 830
 831                         $wgOut->addHTML( "
 832                                         <td class='mw-label' style='white-space: nowrap;'>
 833                                                 <label for='wpUploadCopyStatus'>$filestatus</label></td>
 834                                         <td class='mw-input'>
 835                                                 <input tabindex='5' type='text' name='wpUploadCopyStatus' id='wpUploadCopyStatus'
 836                                                         value=\"$copystatus\" size='60' />
 837                                         </td>
 838                                 </tr>
 839                                 <tr>
 840                                         <td class='mw-label'>
 841                                                 <label for='wpUploadCopyStatus'>$filesource</label>
 842                                         </td>
 843                                         <td class='mw-input'>
 844                                                 <input tabindex='6' type='text' name='wpUploadSource' id='wpUploadCopyStatus'
 845                                                         value=\"$uploadsource\" size='60' />
 846                                         </td>
 847                                 </tr>
 848                                 <tr>"
 849                         );
 850                 }
 851
 852                 $wgOut->addHtml( "
 853                                 <td></td>
 854                                 <td>
 855                                         <input tabindex='7' type='checkbox' name='wpWatchthis' id='wpWatchthis' $watchChecked value='true' />
 856                                         <label for='wpWatchthis'>" . wfMsgHtml( 'watchthisupload' ) . "</label>
 857                                         <input tabindex='8' type='checkbox' name='wpIgnoreWarning' id='wpIgnoreWarning' value='true' $warningChecked/>
 858                                         <label for='wpIgnoreWarning'>" . wfMsgHtml( 'ignorewarnings' ) . "</label>
 859                                 </td>
 860                         </tr>
 861                         $warningRow
 862                         <tr>
 863                                 <td></td>
 864                                         <td class='mw-input'>
 865                                                 <input tabindex='9' type='submit' name='wpUpload' value=\"{$ulb}\"" . $wgUser->getSkin()->tooltipAndAccesskey( 'upload' ) . " />
 866                                         </td>
 867                         </tr>
 868                         <tr>
 869                                 <td></td>
 870                                 <td class='mw-input'>"
 871                 );
 872                 $wgOut->addWikiText( wfMsgForContent( 'edittools' ) );
 873                 $wgOut->addHTML( "
 874                                 </td>
 875                         </tr>" .
 876                         Xml::closeElement( 'table' ) .
 877                         Xml::hidden( 'wpDestFileWarningAck', '', array( 'id' => 'wpDestFileWarningAck' ) ) .
 878                         Xml::closeElement( 'fieldset' ) .
 879                         Xml::closeElement( 'form' )
 880                 );
 881                 $uploadfooter = wfMsgNoTrans( 'uploadfooter' );
 882                 if( $uploadfooter != '-' && !wfEmptyMsg( 'uploadfooter', $uploadfooter ) ){
 883                         $wgOut->addWikiText( '<div id="mw-upload-footer-message">' . $uploadfooter . '</div>' );
 884                 }
 885         }
 886
 887         /* -------------------------------------------------------------- */
 888
 889         /**
 890          * See if we should check the 'watch this page' checkbox on the form
 891          * based on the user's preferences and whether we're being asked
 892          * to create a new file or update an existing one.
 893          *
 894          * In the case where 'watch edits' is off but 'watch creations' is on,
 895          * we'll leave the box unchecked.
 896          *
 897          * Note that the page target can be changed *on the form*, so our check
 898          * state can get out of sync.
 899          */
 900         function watchCheck() {
 901                 global $wgUser;
 902                 if( $wgUser->getOption( 'watchdefault' ) ) {
 903                         // Watch all edits!
 904                         return true;
 905                 }
 906
 907                 $local = wfLocalFile( $this->mDesiredDestName );
 908                 if( $local && $local->exists() ) {
 909                         // We're uploading a new version of an existing file.
 910                         // No creation, so don't watch it if we're not already.
 911                         return $local->getTitle()->userIsWatching();
 912                 } else {
 913                         // New page should get watched if that's our option.
 914                         return $wgUser->getOption( 'watchcreations' );
 915                 }
 916         }
 917
 918          /**
 919          * Check if a user is the last uploader
 920          *
 921          * @param User $user
 922          * @param string $img, image name
 923          * @return bool
 924          * @deprecated Use UploadFromBase::userCanReUpload
 925          */
 926         public static function userCanReUpload( User $user, $img ) {
 927                 wfDeprecated( __METHOD__ );
 928
 929                 if( $user->isAllowed( 'reupload' ) )
 930                         return true; // non-conditional
 931                 if( !$user->isAllowed( 'reupload-own' ) )
 932                         return false;
 933
 934                 $dbr = wfGetDB( DB_SLAVE );
 935                 $row = $dbr->selectRow('image',
 936                 /* SELECT */ 'img_user',
 937                 /* WHERE */ array( 'img_name' => $img )
 938                 );
 939                 if ( !$row )
 940                         return false;
 941
 942                 return $user->getId() == $row->img_user;
 943         }
 944
 945         /**
 946          * Display an error with a wikitext description
 947          */
 948         function showError( $description ) {
 949                 global $wgOut;
 950                 $wgOut->setPageTitle( wfMsg( "internalerror" ) );
 951                 $wgOut->setRobotPolicy( "noindex,nofollow" );
 952                 $wgOut->setArticleRelated( false );
 953                 $wgOut->enableClientCache( false );
 954                 $wgOut->addWikiText( $description );
 955         }
 956
 957         /**
 958          * Get the initial image page text based on a comment and optional file status information
 959          */
 960         static function getInitialPageText( $comment, $license, $copyStatus, $source ) {
 961                 global $wgUseCopyrightUpload;
 962                 if ( $wgUseCopyrightUpload ) {
 963                         if ( $license != '' ) {
 964                                 $licensetxt = '== ' . wfMsgForContent( 'license' ) . " ==\n" . '{{' . $license . '}}' . "\n";
 965                         }
 966                         $pageText = '== ' . wfMsg ( 'filedesc' ) . " ==\n" . $comment . "\n" .
 967                           '== ' . wfMsgForContent ( 'filestatus' ) . " ==\n" . $copyStatus . "\n" .
 968                           "$licensetxt" .
 969                           '== ' . wfMsgForContent ( 'filesource' ) . " ==\n" . $source ;
 970                 } else {
 971                         if ( $license != '' ) {
 972                                 $filedesc = $comment == '' ? '' : '== ' . wfMsg ( 'filedesc' ) . " ==\n" . $comment . "\n";
 973                                  $pageText = $filedesc .
 974                                          '== ' . wfMsgForContent ( 'license' ) . " ==\n" . '{{' . $license . '}}' . "\n";
 975                         } else {
 976                                 $pageText = $comment;
 977                         }
 978                 }
 979                 return $pageText;
 980         }
 981
 982         /**
 983          * If there are rows in the deletion log for this file, show them,
 984          * along with a nice little note for the user
 985          *
 986          * @param OutputPage $out
 987          * @param string filename
 988          */
 989         private function showDeletionLog( $out, $filename ) {
 990                 global $wgUser;
 991                 $loglist = new LogEventsList( $wgUser->getSkin(), $out );
 992                 $pager = new LogPager( $loglist, 'delete', false, $filename );
 993                 if( $pager->getNumRows() > 0 ) {
 994                         $out->addHtml( '<div id="mw-upload-deleted-warn">' );
 995                         $out->addWikiMsg( 'upload-wasdeleted' );
 996                         $out->addHTML(
 997                                 $loglist->beginLogEventsList() .
 998                                 $pager->getBody() .
 999                                 $loglist->endLogEventsList()
1000                         );
1001                         $out->addHtml( '</div>' );
1002                 }
1003         }
1004 }