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