includes/specials/SpecialUpload.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup SpecialPage
   5  * @ingroup Upload
   6  *
   7  * Form for handling uploads and special page.
   8  *
   9  */
  10
  11 class SpecialUpload extends SpecialPage {
  12         /**
  13          * Constructor : initialise object
  14          * Get data POSTed through the form and assign them to the object
  15          * @param WebRequest $request Data posted.
  16          */
  17         public function __construct( $request = null ) {
  18                 global $wgRequest;
  19
  20                 parent::__construct( 'Upload', 'upload' );
  21
  22                 $this->loadRequest( is_null( $request ) ? $wgRequest : $request );
  23         }
  24
  25         /** Misc variables **/
  26         protected $mRequest;                    // The WebRequest or FauxRequest this form is supposed to handle
  27         protected $mSourceType;
  28         protected $mUpload;
  29         protected $mLocalFile;
  30         protected $mUploadClicked;
  31
  32         /** User input variables from the "description" section **/
  33         protected $mDesiredDestName;    // The requested target file name
  34         protected $mComment;
  35         protected $mLicense;
  36
  37         /** User input variables from the root section **/
  38         protected $mIgnoreWarning;
  39         protected $mWatchThis;
  40         protected $mCopyrightStatus;
  41         protected $mCopyrightSource;
  42
  43         /** Hidden variables **/
  44         protected $mDestWarningAck;
  45         protected $mForReUpload;                // The user followed an "overwrite this file" link
  46         protected $mCancelUpload;               // The user clicked "Cancel and return to upload form" button
  47         protected $mTokenOk;
  48
  49         /** Text injection points for hooks not using HTMLForm **/
  50         public $uploadFormTextTop;
  51         public $uploadFormTextAfterSummary;
  52
  53
  54         /**
  55          * Initialize instance variables from request and create an Upload handler
  56          *
  57          * @param WebRequest $request The request to extract variables from
  58          */
  59         protected function loadRequest( $request ) {
  60                 global $wgUser;
  61
  62                 $this->mRequest = $request;
  63                 $this->mSourceType        = $request->getVal( 'wpSourceType', 'file' );
  64                 $this->mUpload            = UploadBase::createFromRequest( $request );
  65                 $this->mUploadClicked     = $request->wasPosted()
  66                         && ( $request->getCheck( 'wpUpload' )
  67                                 || $request->getCheck( 'wpUploadIgnoreWarning' ) );
  68
  69                 // Guess the desired name from the filename if not provided
  70                 $this->mDesiredDestName   = $request->getText( 'wpDestFile' );
  71                 if( !$this->mDesiredDestName )
  72                         $this->mDesiredDestName = $request->getText( 'wpUploadFile' );
  73                 $this->mComment           = $request->getText( 'wpUploadDescription' );
  74                 $this->mLicense           = $request->getText( 'wpLicense' );
  75
  76
  77                 $this->mDestWarningAck    = $request->getText( 'wpDestFileWarningAck' );
  78                 $this->mIgnoreWarning     = $request->getCheck( 'wpIgnoreWarning' )
  79                         || $request->getCheck( 'wpUploadIgnoreWarning' );
  80                 $this->mWatchthis         = $request->getBool( 'wpWatchthis' ) && $wgUser->isLoggedIn();
  81                 $this->mCopyrightStatus   = $request->getText( 'wpUploadCopyStatus' );
  82                 $this->mCopyrightSource   = $request->getText( 'wpUploadSource' );
  83
  84
  85                 $this->mForReUpload       = $request->getBool( 'wpForReUpload' ); // updating a file
  86                 $this->mCancelUpload      = $request->getCheck( 'wpCancelUpload' )
  87                                          || $request->getCheck( 'wpReUpload' ); // b/w compat
  88
  89                 // If it was posted check for the token (no remote POST'ing with user credentials)
  90                 $token = $request->getVal( 'wpEditToken' );
  91                 if( $this->mSourceType == 'file' && $token == null ) {
  92                         // Skip token check for file uploads as that can't be faked via JS...
  93                         // Some client-side tools don't expect to need to send wpEditToken
  94                         // with their submissions, as that's new in 1.16.
  95                         $this->mTokenOk = true;
  96                 } else {
  97                         $this->mTokenOk = $wgUser->matchEditToken( $token );
  98                 }
  99
 100                 $this->uploadFormTextTop = '';
 101                 $this->uploadFormTextAfterSummary = '';
 102         }
 103
 104         /**
 105          * This page can be shown if uploading is enabled.
 106          * Handle permission checking elsewhere in order to be able to show
 107          * custom error messages.
 108          *
 109          * @param User $user
 110          * @return bool
 111          */
 112         public function userCanExecute( $user ) {
 113                 return UploadBase::isEnabled() && parent::userCanExecute( $user );
 114         }
 115
 116         /**
 117          * Special page entry point
 118          */
 119         public function execute( $par ) {
 120                 global $wgUser, $wgOut, $wgRequest;
 121
 122                 $this->setHeaders();
 123                 $this->outputHeader();
 124
 125                 # Check uploading enabled
 126                 if( !UploadBase::isEnabled() ) {
 127                         $wgOut->showErrorPage( 'uploaddisabled', 'uploaddisabledtext' );
 128                         return;
 129                 }
 130
 131                 # Check permissions
 132                 global $wgGroupPermissions;
 133                 if( !$wgUser->isAllowed( 'upload' ) ) {
 134                         if( !$wgUser->isLoggedIn() && ( $wgGroupPermissions['user']['upload']
 135                                 || $wgGroupPermissions['autoconfirmed']['upload'] ) ) {
 136                                 // Custom message if logged-in users without any special rights can upload
 137                                 $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
 138                         } else {
 139                                 $wgOut->permissionRequired( 'upload' );
 140                         }
 141                         return;
 142                 }
 143
 144                 # Check blocks
 145                 if( $wgUser->isBlocked() ) {
 146                         $wgOut->blockedPage();
 147                         return;
 148                 }
 149
 150                 # Check whether we actually want to allow changing stuff
 151                 if( wfReadOnly() ) {
 152                         $wgOut->readOnlyPage();
 153                         return;
 154                 }
 155
 156                 # Unsave the temporary file in case this was a cancelled upload
 157                 if ( $this->mCancelUpload ) {
 158                         if ( !$this->unsaveUploadedFile() )
 159                                 # Something went wrong, so unsaveUploadedFile showed a warning
 160                                 return;
 161                 }
 162
 163                 # Process upload or show a form
 164                 if ( $this->mTokenOk && !$this->mCancelUpload
 165                                 && ( $this->mUpload && $this->mUploadClicked ) ) {
 166                         $this->processUpload();
 167                 } else {
 168                         # Backwards compatibility hook
 169                         if( !wfRunHooks( 'UploadForm:initial', array( &$this ) ) )
 170                         {
 171                                 wfDebug( "Hook 'UploadForm:initial' broke output of the upload form" );
 172                                 return;
 173                         }
 174
 175                         $this->showUploadForm( $this->getUploadForm() );
 176                 }
 177
 178                 # Cleanup
 179                 if ( $this->mUpload )
 180                         $this->mUpload->cleanupTempFile();
 181         }
 182
 183         /**
 184          * Show the main upload form and optionally add the session key to the
 185          * output. This hides the source selection.
 186          *
 187          * @param string $message HTML message to be shown at top of form
 188          * @param string $sessionKey Session key of the stashed upload
 189          */
 190         protected function showUploadForm( $form ) {
 191                 # Add links if file was previously deleted
 192                 if ( !$this->mDesiredDestName )
 193                         $this->showViewDeletedLinks();
 194
 195                 $form->show();
 196         }
 197
 198         /**
 199          * Get an UploadForm instance with title and text properly set.
 200          *
 201          * @param string $message HTML string to add to the form
 202          * @param string $sessionKey Session key in case this is a stashed upload
 203          * @return UploadForm
 204          */
 205         protected function getUploadForm( $message = '', $sessionKey = '', $hideIgnoreWarning = false ) {
 206                 global $wgOut;
 207
 208                 # Initialize form
 209                 $form = new UploadForm( array(
 210                         'watch' => $this->getWatchCheck(),
 211                         'forreupload' => $this->mForReUpload,
 212                         'sessionkey' => $sessionKey,
 213                         'hideignorewarning' => $hideIgnoreWarning,
 214                         'destwarningack' => (bool)$this->mDestWarningAck,
 215
 216                         'texttop' => $this->uploadFormTextTop,
 217                         'textaftersummary' => $this->uploadFormTextAfterSummary,
 218                 ) );
 219                 $form->setTitle( $this->getTitle() );
 220
 221                 # Check the token, but only if necessary
 222                 if( !$this->mTokenOk && !$this->mCancelUpload
 223                                 && ( $this->mUpload && $this->mUploadClicked ) ) {
 224                         $form->addPreText( wfMsgExt( 'session_fail_preview', 'parseinline' ) );
 225                 }
 226
 227                 # Add text to form
 228                 $form->addPreText( '<div id="uploadtext">' . wfMsgExt( 'uploadtext', 'parse' ) . '</div>');
 229                 # Add upload error message
 230                 $form->addPreText( $message );
 231
 232                 # Add footer to form
 233                 $uploadFooter = wfMsgNoTrans( 'uploadfooter' );
 234                 if ( $uploadFooter != '-' && !wfEmptyMsg( 'uploadfooter', $uploadFooter ) ) {
 235                         $form->addPostText( '<div id="mw-upload-footer-message">'
 236                                 . $wgOut->parse( $uploadFooter ) . "</div>\n" );
 237                 }
 238
 239                 return $form;
 240
 241         }
 242
 243         /**
 244          * Shows the "view X deleted revivions link""
 245          */
 246         protected function showViewDeletedLinks() {
 247                 global $wgOut, $wgUser;
 248
 249                 $title = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 250                 // Show a subtitle link to deleted revisions (to sysops et al only)
 251                 if( $title instanceof Title ) {
 252                         $count = $title->isDeleted();
 253                         if ( $count > 0 && $wgUser->isAllowed( 'deletedhistory' ) ) {
 254                                 $link = wfMsgExt(
 255                                         $wgUser->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted',
 256                                         array( 'parse', 'replaceafter' ),
 257                                         $wgUser->getSkin()->linkKnown(
 258                                                 SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
 259                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $count )
 260                                         )
 261                                 );
 262                                 $wgOut->addHTML( "<div id=\"contentSub2\">{$link}</div>" );
 263                         }
 264                 }
 265
 266                 // Show the relevant lines from deletion log (for still deleted files only)
 267                 if( $title instanceof Title && $title->isDeletedQuick() && !$title->exists() ) {
 268                         $this->showDeletionLog( $wgOut, $title->getPrefixedText() );
 269                 }
 270         }
 271
 272         /**
 273          * Stashes the upload and shows the main upload form.
 274          *
 275          * Note: only errors that can be handled by changing the name or
 276          * description should be redirected here. It should be assumed that the
 277          * file itself is sane and has passed UploadBase::verifyFile. This
 278          * essentially means that UploadBase::VERIFICATION_ERROR and
 279          * UploadBase::EMPTY_FILE should not be passed here.
 280          *
 281          * @param string $message HTML message to be passed to mainUploadForm
 282          */
 283         protected function showRecoverableUploadError( $message ) {
 284                 $sessionKey = $this->mUpload->stashSession();
 285                 $message = '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" .
 286                         '<div class="error">' . $message . "</div>\n";
 287
 288                 $form = $this->getUploadForm( $message, $sessionKey );
 289                 $form->setSubmitText( wfMsg( 'upload-tryagain' ) );
 290                 $this->showUploadForm( $form );
 291         }
 292         /**
 293          * Stashes the upload, shows the main form, but adds an "continue anyway button".
 294          * Also checks whether there are actually warnings to display.
 295          *
 296          * @param array $warnings
 297          * @return boolean true if warnings were displayed, false if there are no
 298          *      warnings and the should continue processing like there was no warning
 299          */
 300         protected function showUploadWarning( $warnings ) {
 301                 global $wgUser;
 302
 303                 # If there are no warnings, or warnings we can ignore, return early
 304                 if ( !$warnings || ( count( $warnings ) == 1 &&
 305                                  isset( $warnings['exists']) && $this->mDestWarningAck ) ) {
 306                         return false;
 307                 }
 308
 309                 $sessionKey = $this->mUpload->stashSession();
 310
 311                 $sk = $wgUser->getSkin();
 312
 313                 $warningHtml = '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n"
 314                         . '<ul class="warning">';
 315                 foreach( $warnings as $warning => $args ) {
 316                                 $msg = '';
 317                                 if( $warning == 'exists' ) {
 318                                         $msg = self::getExistsWarning( $args );
 319                                 } elseif( $warning == 'duplicate' ) {
 320                                         $msg = self::getDupeWarning( $args );
 321                                 } elseif( $warning == 'duplicate-archive' ) {
 322                                         $msg = "\t<li>" . wfMsgExt( 'file-deleted-duplicate', 'parseinline',
 323                                                         array( Title::makeTitle( NS_FILE, $args )->getPrefixedText() ) )
 324                                                 . "</li>\n";
 325                                 } else {
 326                                         if ( is_bool( $args ) )
 327                                                 $args = array();
 328                                         elseif ( !is_array( $args ) )
 329                                                 $args = array( $args );
 330                                         $msg = "\t<li>" . wfMsgExt( $warning, 'parseinline', $args ) . "</li>\n";
 331                                 }
 332                                 $warningHtml .= $msg;
 333                 }
 334                 $warningHtml .= "</ul>\n";
 335                 $warningHtml .= wfMsgExt( 'uploadwarning-text', 'parse' );
 336
 337                 $form = $this->getUploadForm( $warningHtml, $sessionKey, /* $hideIgnoreWarning */ true );
 338                 $form->setSubmitText( wfMsg( 'upload-tryagain' ) );
 339                 $form->addButton( 'wpUploadIgnoreWarning', wfMsg( 'ignorewarning' ) );
 340                 $form->addButton( 'wpCancelUpload', wfMsg( 'reuploaddesc' ) );
 341
 342                 $this->showUploadForm( $form );
 343
 344                 # Indicate that we showed a form
 345                 return true;
 346         }
 347
 348         /**
 349          * Show the upload form with error message, but do not stash the file.
 350          *
 351          * @param string $message
 352          */
 353         protected function showUploadError( $message ) {
 354                 $message = '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" .
 355                         '<div class="error">' . $message . "</div>\n";
 356                 $this->showUploadForm( $this->getUploadForm( $message ) );
 357         }
 358
 359         /**
 360          * Do the upload.
 361          * Checks are made in SpecialUpload::execute()
 362          */
 363         protected function processUpload() {
 364                 global $wgUser, $wgOut;
 365
 366                 // Verify permissions
 367                 $permErrors = $this->mUpload->verifyPermissions( $wgUser );
 368                 if( $permErrors !== true ) {
 369                         $wgOut->showPermissionsErrorPage( $permErrors );
 370                         return;
 371                 }
 372
 373                 // Fetch the file if required
 374                 $status = $this->mUpload->fetchFile();
 375                 if( !$status->isOK() ) {
 376                         $this->showUploadForm( $this->getUploadForm( $wgOut->parse( $status->getWikiText() ) ) );
 377                         return;
 378                 }
 379
 380                 // Deprecated backwards compatibility hook
 381                 if( !wfRunHooks( 'UploadForm:BeforeProcessing', array( &$this ) ) )
 382                 {
 383                         wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file.\n" );
 384                         return array( 'status' => UploadBase::BEFORE_PROCESSING );
 385                 }
 386
 387
 388                 // Upload verification
 389                 $details = $this->mUpload->verifyUpload();
 390                 if ( $details['status'] != UploadBase::OK ) {
 391                         $this->processVerificationError( $details );
 392                         return;
 393                 }
 394
 395                 $this->mLocalFile = $this->mUpload->getLocalFile();
 396
 397                 // Check warnings if necessary
 398                 if( !$this->mIgnoreWarning ) {
 399                         $warnings = $this->mUpload->checkWarnings();
 400                         if( $this->showUploadWarning( $warnings ) ) {
 401                                 return;
 402                         }
 403                 }
 404
 405                 // Get the page text if this is not a reupload
 406                 if( !$this->mForReUpload ) {
 407                         $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
 408                                 $this->mCopyrightStatus, $this->mCopyrightSource );
 409                 } else {
 410                         $pageText = false;
 411                 }
 412                 $status = $this->mUpload->performUpload( $this->mComment, $pageText, $this->mWatchthis, $wgUser );
 413                 if ( !$status->isGood() ) {
 414                         $this->showUploadError( $wgOut->parse( $status->getWikiText() ) );
 415                         return;
 416                 }
 417
 418                 // Success, redirect to description page
 419                 wfRunHooks( 'SpecialUploadComplete', array( &$this ) );
 420                 $wgOut->redirect( $this->mLocalFile->getTitle()->getFullURL() );
 421
 422         }
 423
 424         /**
 425          * Get the initial image page text based on a comment and optional file status information
 426          */
 427         public static function getInitialPageText( $comment = '', $license = '', $copyStatus = '', $source = '' ) {
 428                 global $wgUseCopyrightUpload;
 429                 if ( $wgUseCopyrightUpload ) {
 430                         $licensetxt = '';
 431                         if ( $license != '' ) {
 432                                 $licensetxt = '== ' . wfMsgForContent( 'license-header' ) . " ==\n" . '{{' . $license . '}}' . "\n";
 433                         }
 434                         $pageText = '== ' . wfMsgForContent ( 'filedesc' ) . " ==\n" . $comment . "\n" .
 435                           '== ' . wfMsgForContent ( 'filestatus' ) . " ==\n" . $copyStatus . "\n" .
 436                           "$licensetxt" .
 437                           '== ' . wfMsgForContent ( 'filesource' ) . " ==\n" . $source ;
 438                 } else {
 439                         if ( $license != '' ) {
 440                                 $filedesc = $comment == '' ? '' : '== ' . wfMsgForContent ( 'filedesc' ) . " ==\n" . $comment . "\n";
 441                                  $pageText = $filedesc .
 442                                          '== ' . wfMsgForContent ( 'license-header' ) . " ==\n" . '{{' . $license . '}}' . "\n";
 443                         } else {
 444                                 $pageText = $comment;
 445                         }
 446                 }
 447                 return $pageText;
 448         }
 449
 450         /**
 451          * See if we should check the 'watch this page' checkbox on the form
 452          * based on the user's preferences and whether we're being asked
 453          * to create a new file or update an existing one.
 454          *
 455          * In the case where 'watch edits' is off but 'watch creations' is on,
 456          * we'll leave the box unchecked.
 457          *
 458          * Note that the page target can be changed *on the form*, so our check
 459          * state can get out of sync.
 460          */
 461         protected function getWatchCheck() {
 462                 global $wgUser;
 463                 if( $wgUser->getOption( 'watchdefault' ) ) {
 464                         // Watch all edits!
 465                         return true;
 466                 }
 467
 468                 $local = wfLocalFile( $this->mDesiredDestName );
 469                 if( $local && $local->exists() ) {
 470                         // We're uploading a new version of an existing file.
 471                         // No creation, so don't watch it if we're not already.
 472                         return $local->getTitle()->userIsWatching();
 473                 } else {
 474                         // New page should get watched if that's our option.
 475                         return $wgUser->getOption( 'watchcreations' );
 476                 }
 477         }
 478
 479
 480         /**
 481          * Provides output to the user for a result of UploadBase::verifyUpload
 482          *
 483          * @param array $details Result of UploadBase::verifyUpload
 484          */
 485         protected function processVerificationError( $details ) {
 486                 global $wgFileExtensions, $wgLang;
 487
 488                 switch( $details['status'] ) {
 489
 490                         /** Statuses that only require name changing **/
 491                         case UploadBase::MIN_LENGTH_PARTNAME:
 492                                 $this->showRecoverableUploadError( wfMsgHtml( 'minlength1' ) );
 493                                 break;
 494                         case UploadBase::ILLEGAL_FILENAME:
 495                                 $this->showRecoverableUploadError( wfMsgExt( 'illegalfilename',
 496                                         'parseinline', $details['filtered'] ) );
 497                                 break;
 498                         case UploadBase::OVERWRITE_EXISTING_FILE:
 499                                 $this->showRecoverableUploadError( wfMsgExt( $details['overwrite'],
 500                                         'parseinline' ) );
 501                                 break;
 502                         case UploadBase::FILETYPE_MISSING:
 503                                 $this->showRecoverableUploadError( wfMsgExt( 'filetype-missing',
 504                                         'parseinline' ) );
 505                                 break;
 506
 507                         /** Statuses that require reuploading **/
 508                         case UploadBase::EMPTY_FILE:
 509                                 $this->showUploadForm( $this->getUploadForm( wfMsgHtml( 'emptyfile' ) ) );
 510                                 break;
 511                         case UploadBase::FILETYPE_BADTYPE:
 512                                 $finalExt = $details['finalExt'];
 513                                 $this->showUploadError(
 514                                         wfMsgExt( 'filetype-banned-type',
 515                                                 array( 'parseinline' ),
 516                                                 htmlspecialchars( $finalExt ),
 517                                                 implode(
 518                                                         wfMsgExt( 'comma-separator', array( 'escapenoentities' ) ),
 519                                                         $wgFileExtensions
 520                                                 ),
 521                                                 $wgLang->formatNum( count( $wgFileExtensions ) )
 522                                         )
 523                                 );
 524                                 break;
 525                         case UploadBase::VERIFICATION_ERROR:
 526                                 unset( $details['status'] );
 527                                 $code = array_shift( $details['details'] );
 528                                 $this->showUploadError( wfMsgExt( $code, 'parseinline', $details['details'] ) );
 529                                 break;
 530                         case UploadBase::HOOK_ABORTED:
 531                                 if ( is_array( $details['error'] ) ) { # allow hooks to return error details in an array
 532                                         $args = $details['error'];
 533                                         $error = array_shift( $args );
 534                                 } else {
 535                                         $error = $details['error'];
 536                                         $args = null;
 537                                 }
 538
 539                                 $this->showUploadError( wfMsgExt( $error, 'parseinline', $args ) );
 540                                 break;
 541                         default:
 542                                 throw new MWException( __METHOD__ . ": Unknown value `{$details['status']}`" );
 543                 }
 544         }
 545
 546         /**
 547          * Remove a temporarily kept file stashed by saveTempUploadedFile().
 548          * @access private
 549          * @return success
 550          */
 551         protected function unsaveUploadedFile() {
 552                 global $wgOut;
 553                 if ( !( $this->mUpload instanceof UploadFromStash ) )
 554                         return true;
 555                 $success = $this->mUpload->unsaveUploadedFile();
 556                 if ( ! $success ) {
 557                         $wgOut->showFileDeleteError( $this->mUpload->getTempPath() );
 558                         return false;
 559                 } else {
 560                         return true;
 561                 }
 562         }
 563
 564         /*** Functions for formatting warnings ***/
 565
 566         /**
 567          * Formats a result of UploadBase::getExistsWarning as HTML
 568          * This check is static and can be done pre-upload via AJAX
 569          *
 570          * @param array $exists The result of UploadBase::getExistsWarning
 571          * @return string Empty string if there is no warning or an HTML fragment
 572          * consisting of one or more <li> elements if there is a warning.
 573          */
 574         public static function getExistsWarning( $exists ) {
 575                 global $wgUser, $wgContLang;
 576
 577                 if ( !$exists )
 578                         return '';
 579
 580                 $file = $exists['file'];
 581                 $filename = $file->getTitle()->getPrefixedText();
 582                 $warning = array();
 583
 584                 $sk = $wgUser->getSkin();
 585
 586                 if( $exists['warning'] == 'exists' ) {
 587                         // Exact match
 588                         $warning[] = '<li>' . wfMsgExt( 'fileexists', 'parseinline', $filename ) . '</li>';
 589                 } elseif( $exists['warning'] == 'page-exists' ) {
 590                         // Page exists but file does not
 591                         $warning[] = '<li>' . wfMsgExt( 'filepageexists', 'parseinline', $filename ) . '</li>';
 592                 } elseif ( $exists['warning'] == 'exists-normalized' ) {
 593                         $warning[] = '<li>' . wfMsgExt( 'fileexists-extension', 'parseinline', $filename,
 594                                 $exists['normalizedFile']->getTitle()->getPrefixedText() ) . '</li>';
 595                 } elseif ( $exists['warning'] == 'thumb' ) {
 596                         // Swapped argument order compared with other messages for backwards compatibility
 597                         $warning[] = '<li>' . wfMsgExt( 'fileexists-thumbnail-yes', 'parseinline',
 598                                 $exists['thumbFile']->getTitle()->getPrefixedText(), $filename ) . '</li>';
 599                 } elseif ( $exists['warning'] == 'thumb-name' ) {
 600                         // Image w/o '180px-' does not exists, but we do not like these filenames
 601                         $name = $file->getName();
 602                         $badPart = substr( $name, 0, strpos( $name, '-' ) + 1 );
 603                         $warning[] = '<li>' . wfMsgExt( 'file-thumbnail-no', 'parseinline', $badPart ) . '</li>';
 604                 } elseif ( $exists['warning'] == 'bad-prefix' ) {
 605                         $warning[] = '<li>' . wfMsgExt( 'filename-bad-prefix', 'parseinline', $exists['prefix'] ) . '</li>';
 606                 } elseif ( $exists['warning'] == 'was-deleted' ) {
 607                         # If the file existed before and was deleted, warn the user of this
 608                         $ltitle = SpecialPage::getTitleFor( 'Log' );
 609                         $llink = $sk->linkKnown(
 610                                 $ltitle,
 611                                 wfMsgHtml( 'deletionlog' ),
 612                                 array(),
 613                                 array(
 614                                         'type' => 'delete',
 615                                         'page' => $filename
 616                                 )
 617                         );
 618                         $warning[] = '<li>' . wfMsgWikiHtml( 'filewasdeleted', $llink ) . '</li>';
 619                 }
 620
 621                 return implode( "\n", $warning );
 622         }
 623
 624         /**
 625          * Get a list of warnings
 626          *
 627          * @param string local filename, e.g. 'file exists', 'non-descriptive filename'
 628          * @return array list of warning messages
 629          */
 630         public static function ajaxGetExistsWarning( $filename ) {
 631                 $file = wfFindFile( $filename );
 632                 if( !$file ) {
 633                         // Force local file so we have an object to do further checks against
 634                         // if there isn't an exact match...
 635                         $file = wfLocalFile( $filename );
 636                 }
 637                 $s = '&nbsp;';
 638                 if ( $file ) {
 639                         $exists = UploadBase::getExistsWarning( $file );
 640                         $warning = self::getExistsWarning( $exists );
 641                         if ( $warning !== '' ) {
 642                                 $s = "<ul>$warning</ul>";
 643                         }
 644                 }
 645                 return $s;
 646         }
 647
 648         /**
 649          * Render a preview of a given license for the AJAX preview on upload
 650          *
 651          * @param string $license
 652          * @return string
 653          */
 654         public static function ajaxGetLicensePreview( $license ) {
 655                 global $wgParser, $wgUser;
 656                 $text = '{{' . $license . '}}';
 657                 $title = Title::makeTitle( NS_FILE, 'Sample.jpg' );
 658                 $options = ParserOptions::newFromUser( $wgUser );
 659
 660                 // Expand subst: first, then live templates...
 661                 $text = $wgParser->preSaveTransform( $text, $title, $wgUser, $options );
 662                 $output = $wgParser->parse( $text, $title, $options );
 663
 664                 return $output->getText();
 665         }
 666
 667         /**
 668          * Construct a warning and a gallery from an array of duplicate files.
 669          */
 670         public static function getDupeWarning( $dupes ) {
 671                 if( $dupes ) {
 672                         global $wgOut;
 673                         $msg = "<gallery>";
 674                         foreach( $dupes as $file ) {
 675                                 $title = $file->getTitle();
 676                                 $msg .= $title->getPrefixedText() .
 677                                         "|" . $title->getText() . "\n";
 678                         }
 679                         $msg .= "</gallery>";
 680                         return "<li>" .
 681                                 wfMsgExt( "file-exists-duplicate", array( "parse" ), count( $dupes ) ) .
 682                                 $wgOut->parse( $msg ) .
 683                                 "</li>\n";
 684                 } else {
 685                         return '';
 686                 }
 687         }
 688
 689 }
 690
 691 /**
 692  * Sub class of HTMLForm that provides the form section of SpecialUpload
 693  */
 694 class UploadForm extends HTMLForm {
 695         protected $mWatch;
 696         protected $mForReUpload;
 697         protected $mSessionKey;
 698         protected $mHideIgnoreWarning;
 699         protected $mDestWarningAck;
 700
 701         protected $mTextTop;
 702         protected $mTextAfterSummary;
 703
 704         protected $mSourceIds;
 705
 706         public function __construct( $options = array() ) {
 707                 global $wgLang;
 708
 709                 $this->mWatch = !empty( $options['watch'] );
 710                 $this->mForReUpload = !empty( $options['forreupload'] );
 711                 $this->mSessionKey = isset( $options['sessionkey'] )
 712                                 ? $options['sessionkey'] : '';
 713                 $this->mHideIgnoreWarning = !empty( $options['hideignorewarning'] );
 714                 $this->mDestWarningAck = !empty( $options['destwarningack'] );
 715
 716                 $this->mTextTop = $options['texttop'];
 717                 $this->mTextAfterSummary = $options['textaftersummary'];
 718
 719                 $sourceDescriptor = $this->getSourceSection();
 720                 $descriptor = $sourceDescriptor
 721                         + $this->getDescriptionSection()
 722                         + $this->getOptionsSection();
 723
 724                 wfRunHooks( 'UploadFormInitDescriptor', array( $descriptor ) );
 725                 parent::__construct( $descriptor, 'upload' );
 726
 727                 # Set some form properties
 728                 $this->setSubmitText( wfMsg( 'uploadbtn' ) );
 729                 $this->setSubmitName( 'wpUpload' );
 730                 $this->setSubmitTooltip( 'upload' );
 731                 $this->setId( 'mw-upload-form' );
 732
 733                 # Build a list of IDs for javascript insertion
 734                 $this->mSourceIds = array();
 735                 foreach ( $sourceDescriptor as $key => $field ) {
 736                         if ( !empty( $field['id'] ) )
 737                                 $this->mSourceIds[] = $field['id'];
 738                 }
 739
 740         }
 741
 742         /**
 743          * Get the descriptor of the fieldset that contains the file source
 744          * selection. The section is 'source'
 745          *
 746          * @return array Descriptor array
 747          */
 748         protected function getSourceSection() {
 749                 global $wgLang, $wgUser, $wgRequest;
 750
 751                 if ( $this->mSessionKey ) {
 752                         return array(
 753                                 'wpSessionKey' => array(
 754                                         'type' => 'hidden',
 755                                         'default' => $this->mSessionKey,
 756                                 ),
 757                                 'wpSourceType' => array(
 758                                         'type' => 'hidden',
 759                                         'default' => 'Stash',
 760                                 ),
 761                         );
 762                 }
 763
 764                 $canUploadByUrl = UploadFromUrl::isEnabled() && $wgUser->isAllowed( 'upload_by_url' );
 765                 $radio = $canUploadByUrl;
 766                 $selectedSourceType = strtolower( $wgRequest->getText( 'wpSourceType', 'File' ) );
 767
 768                 $descriptor = array();
 769                 if ( $this->mTextTop ) {
 770                         $descriptor['UploadFormTextTop'] = array(
 771                                 'type' => 'info',
 772                                 'section' => 'source',
 773                                 'default' => $this->mTextTop,
 774                                 'raw' => true,
 775                         );
 776                 }
 777
 778                 $descriptor['UploadFile'] = array(
 779                                 'class' => 'UploadSourceField',
 780                                 'section' => 'source',
 781                                 'type' => 'file',
 782                                 'id' => 'wpUploadFile',
 783                                 'label-message' => 'sourcefilename',
 784                                 'upload-type' => 'File',
 785                                 'radio' => &$radio,
 786                                 'help' => wfMsgExt( 'upload-maxfilesize',
 787                                                 array( 'parseinline', 'escapenoentities' ),
 788                                                 $wgLang->formatSize(
 789                                                         wfShorthandToInteger( ini_get( 'upload_max_filesize' ) )
 790                                                 )
 791                                         ) . ' ' . wfMsgHtml( 'upload_source_file' ),
 792                                 'checked' => $selectedSourceType == 'file',
 793                 );
 794                 if ( $canUploadByUrl ) {
 795                         global $wgMaxUploadSize;
 796                         $descriptor['UploadFileURL'] = array(
 797                                 'class' => 'UploadSourceField',
 798                                 'section' => 'source',
 799                                 'id' => 'wpUploadFileURL',
 800                                 'label-message' => 'sourceurl',
 801                                 'upload-type' => 'url',
 802                                 'radio' => &$radio,
 803                                 'help' => wfMsgExt( 'upload-maxfilesize',
 804                                                 array( 'parseinline', 'escapenoentities' ),
 805                                                 $wgLang->formatSize( $wgMaxUploadSize )
 806                                         ) . ' ' . wfMsgHtml( 'upload_source_url' ),
 807                                 'checked' => $selectedSourceType == 'url',
 808                         );
 809                 }
 810                 wfRunHooks( 'UploadFormSourceDescriptors', array( &$descriptor, &$radio, $selectedSourceType ) );
 811
 812                 $descriptor['Extensions'] = array(
 813                         'type' => 'info',
 814                         'section' => 'source',
 815                         'default' => $this->getExtensionsMessage(),
 816                         'raw' => true,
 817                 );
 818                 return $descriptor;
 819         }
 820
 821
 822         /**
 823          * Get the messages indicating which extensions are preferred and prohibitted.
 824          *
 825          * @return string HTML string containing the message
 826          */
 827         protected function getExtensionsMessage() {
 828                 # Print a list of allowed file extensions, if so configured.  We ignore
 829                 # MIME type here, it's incomprehensible to most people and too long.
 830                 global $wgLang, $wgCheckFileExtensions, $wgStrictFileExtensions,
 831                 $wgFileExtensions, $wgFileBlacklist;
 832
 833                 $allowedExtensions = '';
 834                 if( $wgCheckFileExtensions ) {
 835                         if( $wgStrictFileExtensions ) {
 836                                 # Everything not permitted is banned
 837                                 $extensionsList =
 838                                         '<div id="mw-upload-permitted">' .
 839                                         wfMsgWikiHtml( 'upload-permitted', $wgLang->commaList( $wgFileExtensions ) ) .
 840                                         "</div>\n";
 841                         } else {
 842                                 # We have to list both preferred and prohibited
 843                                 $extensionsList =
 844                                         '<div id="mw-upload-preferred">' .
 845                                         wfMsgWikiHtml( 'upload-preferred', $wgLang->commaList( $wgFileExtensions ) ) .
 846                                         "</div>\n" .
 847                                         '<div id="mw-upload-prohibited">' .
 848                                         wfMsgWikiHtml( 'upload-prohibited', $wgLang->commaList( $wgFileBlacklist ) ) .
 849                                         "</div>\n";
 850                         }
 851                 } else {
 852                         # Everything is permitted.
 853                         $extensionsList = '';
 854                 }
 855                 return $extensionsList;
 856         }
 857
 858         /**
 859          * Get the descriptor of the fieldset that contains the file description
 860          * input. The section is 'description'
 861          *
 862          * @return array Descriptor array
 863          */
 864         protected function getDescriptionSection() {
 865                 global $wgUser, $wgOut;
 866
 867                 $cols = intval( $wgUser->getOption( 'cols' ) );
 868                 if( $wgUser->getOption( 'editwidth' ) ) {
 869                         $wgOut->addInlineStyle( '#mw-htmlform-description { width: 100%; }' );
 870                 }
 871
 872                 $descriptor = array(
 873                         'DestFile' => array(
 874                                 'type' => 'text',
 875                                 'section' => 'description',
 876                                 'id' => 'wpDestFile',
 877                                 'label-message' => 'destfilename',
 878                                 'size' => 60,
 879                         ),
 880                         'UploadDescription' => array(
 881                                 'type' => 'textarea',
 882                                 'section' => 'description',
 883                                 'id' => 'wpUploadDescription',
 884                                 'label-message' => $this->mForReUpload
 885                                         ? 'filereuploadsummary'
 886                                         : 'fileuploadsummary',
 887                                 'cols' => $cols,
 888                                 'rows' => 8,
 889                         )
 890                 );
 891                 if ( $this->mTextAfterSummary ) {
 892                         $descriptor['UploadFormTextAfterSummary'] = array(
 893                                 'type' => 'info',
 894                                 'section' => 'description',
 895                                 'default' => $this->mTextAfterSummary,
 896                                 'raw' => true,
 897                         );
 898                 }
 899
 900                 $descriptor += array(
 901                         'EditTools' => array(
 902                                 'type' => 'edittools',
 903                                 'section' => 'description',
 904                         ),
 905                         'License' => array(
 906                                 'type' => 'select',
 907                                 'class' => 'Licenses',
 908                                 'section' => 'description',
 909                                 'id' => 'wpLicense',
 910                                 'label-message' => 'license',
 911                         ),
 912                 );
 913                 if ( $this->mForReUpload )
 914                         $descriptor['DestFile']['readonly'] = true;
 915
 916                 global $wgUseCopyrightUpload;
 917                 if ( $wgUseCopyrightUpload ) {
 918                         $descriptor['UploadCopyStatus'] = array(
 919                                 'type' => 'text',
 920                                 'section' => 'description',
 921                                 'id' => 'wpUploadCopyStatus',
 922                                 'label-message' => 'filestatus',
 923                         );
 924                         $descriptor['UploadSource'] = array(
 925                                 'type' => 'text',
 926                                 'section' => 'description',
 927                                 'id' => 'wpUploadSource',
 928                                 'label-message' => 'filesource',
 929                         );
 930                 }
 931
 932                 return $descriptor;
 933         }
 934
 935         /**
 936          * Get the descriptor of the fieldset that contains the upload options,
 937          * such as "watch this file". The section is 'options'
 938          *
 939          * @return array Descriptor array
 940          */
 941         protected function getOptionsSection() {
 942                 global $wgUser, $wgOut;
 943
 944                 if( $wgUser->isLoggedIn() ) {
 945                         $descriptor = array(
 946                                 'Watchthis' => array(
 947                                         'type' => 'check',
 948                                         'id' => 'wpWatchthis',
 949                                         'label-message' => 'watchthisupload',
 950                                         'section' => 'options',
 951                                 )
 952                         );
 953                 }
 954                 if( !$this->mHideIgnoreWarning ) {
 955                         $descriptor['IgnoreWarning'] = array(
 956                                 'type' => 'check',
 957                                 'id' => 'wpIgnoreWarning',
 958                                 'label-message' => 'ignorewarnings',
 959                                 'section' => 'options',
 960                         );
 961                 }
 962
 963                 $descriptor['wpDestFileWarningAck'] = array(
 964                         'type' => 'hidden',
 965                         'id' => 'wpDestFileWarningAck',
 966                         'default' => $this->mDestWarningAck ? '1' : '',
 967                 );
 968
 969                 return $descriptor;
 970
 971         }
 972
 973         /**
 974          * Add the upload JS and show the form.
 975          */
 976         public function show() {
 977                 $this->addUploadJS();
 978                 parent::show();
 979         }
 980
 981         /**
 982          * Add upload JS to $wgOut
 983          *
 984          * @param bool $autofill Whether or not to autofill the destination
 985          *      filename text box
 986          */
 987         protected function addUploadJS( ) {
 988                 global $wgUseAjax, $wgAjaxUploadDestCheck, $wgAjaxLicensePreview;
 989                 global $wgOut;
 990
 991                 $useAjaxDestCheck = $wgUseAjax && $wgAjaxUploadDestCheck;
 992                 $useAjaxLicensePreview = $wgUseAjax && $wgAjaxLicensePreview;
 993
 994                 $scriptVars = array(
 995                         'wgAjaxUploadDestCheck' => $wgUseAjax && $wgAjaxUploadDestCheck,
 996                         'wgAjaxLicensePreview' => $wgUseAjax && $wgAjaxLicensePreview,
 997                         'wgUploadAutoFill' => !$this->mForReUpload,
 998                         'wgUploadSourceIds' => $this->mSourceIds,
 999                 );
1000
1001                 $wgOut->addScript( Skin::makeVariablesScript( $scriptVars ) );
1002
1003                 // For <charinsert> support
1004                 $wgOut->addScriptFile( 'edit.js' );
1005                 $wgOut->addScriptFile( 'upload.js' );
1006         }
1007
1008         /**
1009          * Empty function; submission is handled elsewhere.
1010          *
1011          * @return bool false
1012          */
1013         function trySubmit() {
1014                 return false;
1015         }
1016
1017 }
1018
1019 /**
1020  * A form field that contains a radio box in the label
1021  */
1022 class UploadSourceField extends HTMLTextField {
1023         function getLabelHtml() {
1024                 $id = "wpSourceType{$this->mParams['upload-type']}";
1025                 $label = Html::rawElement( 'label', array( 'for' => $id ), $this->mLabel  );
1026
1027                 if ( !empty( $this->mParams['radio'] ) ) {
1028                         $attribs = array(
1029                                 'name' => 'wpSourceType',
1030                                 'type' => 'radio',
1031                                 'id' => $id,
1032                                 'value' => $this->mParams['upload-type'],
1033                         );
1034                         if ( !empty( $this->mParams['checked'] ) )
1035                                 $attribs['checked'] = 'checked';
1036                         $label .= Html::element( 'input', $attribs );
1037                 }
1038
1039                 return Html::rawElement( 'td', array( 'class' => 'mw-label' ), $label );
1040         }
1041         function getSize() {
1042                 return isset( $this->mParams['size'] )
1043                         ? $this->mParams['size']
1044                         : 60;
1045         }
1046 }
1047