includes/specials/SpecialUpload.php

   1 <?php
   2 /**
   3  * Implements Special:Upload
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  * @ingroup Upload
  23  */
  24
  25 /**
  26  * Form for handling uploads and special page.
  27  *
  28  * @ingroup SpecialPage
  29  * @ingroup Upload
  30  */
  31 class SpecialUpload extends SpecialPage {
  32         /**
  33          * Constructor : initialise object
  34          * Get data POSTed through the form and assign them to the object
  35          * @param WebRequest $request Data posted.
  36          */
  37         public function __construct( $request = null ) {
  38                 parent::__construct( 'Upload', 'upload' );
  39         }
  40
  41         /** Misc variables **/
  42
  43         /** @var WebRequest|FauxRequest The request this form is supposed to handle */
  44         public $mRequest;
  45         public $mSourceType;
  46
  47         /** @var UploadBase */
  48         public $mUpload;
  49
  50         /** @var LocalFile */
  51         public $mLocalFile;
  52         public $mUploadClicked;
  53
  54         /** User input variables from the "description" section **/
  55
  56         /** @var string The requested target file name */
  57         public $mDesiredDestName;
  58         public $mComment;
  59         public $mLicense;
  60
  61         /** User input variables from the root section **/
  62
  63         public $mIgnoreWarning;
  64         public $mWatchthis;
  65         public $mCopyrightStatus;
  66         public $mCopyrightSource;
  67
  68         /** Hidden variables **/
  69
  70         public $mDestWarningAck;
  71
  72         /** @var bool The user followed an "overwrite this file" link */
  73         public $mForReUpload;
  74
  75         /** @var bool The user clicked "Cancel and return to upload form" button */
  76         public $mCancelUpload;
  77         public $mTokenOk;
  78
  79         /** @var bool Subclasses can use this to determine whether a file was uploaded */
  80         public $mUploadSuccessful = false;
  81
  82         /** Text injection points for hooks not using HTMLForm **/
  83         public $uploadFormTextTop;
  84         public $uploadFormTextAfterSummary;
  85
  86         /**
  87          * Initialize instance variables from request and create an Upload handler
  88          */
  89         protected function loadRequest() {
  90                 $this->mRequest = $request = $this->getRequest();
  91                 $this->mSourceType = $request->getVal( 'wpSourceType', 'file' );
  92                 $this->mUpload = UploadBase::createFromRequest( $request );
  93                 $this->mUploadClicked = $request->wasPosted()
  94                         && ( $request->getCheck( 'wpUpload' )
  95                                 || $request->getCheck( 'wpUploadIgnoreWarning' ) );
  96
  97                 // Guess the desired name from the filename if not provided
  98                 $this->mDesiredDestName = $request->getText( 'wpDestFile' );
  99                 if ( !$this->mDesiredDestName && $request->getFileName( 'wpUploadFile' ) !== null ) {
 100                         $this->mDesiredDestName = $request->getFileName( 'wpUploadFile' );
 101                 }
 102                 $this->mLicense = $request->getText( 'wpLicense' );
 103
 104                 $this->mDestWarningAck = $request->getText( 'wpDestFileWarningAck' );
 105                 $this->mIgnoreWarning = $request->getCheck( 'wpIgnoreWarning' )
 106                         || $request->getCheck( 'wpUploadIgnoreWarning' );
 107                 $this->mWatchthis = $request->getBool( 'wpWatchthis' ) && $this->getUser()->isLoggedIn();
 108                 $this->mCopyrightStatus = $request->getText( 'wpUploadCopyStatus' );
 109                 $this->mCopyrightSource = $request->getText( 'wpUploadSource' );
 110
 111                 $this->mForReUpload = $request->getBool( 'wpForReUpload' ); // updating a file
 112
 113                 $commentDefault = '';
 114                 $commentMsg = wfMessage( 'upload-default-description' )->inContentLanguage();
 115                 if ( !$this->mForReUpload && !$commentMsg->isDisabled() ) {
 116                         $commentDefault = $commentMsg->plain();
 117                 }
 118                 $this->mComment = $request->getText( 'wpUploadDescription', $commentDefault );
 119
 120                 $this->mCancelUpload = $request->getCheck( 'wpCancelUpload' )
 121                         || $request->getCheck( 'wpReUpload' ); // b/w compat
 122
 123                 // If it was posted check for the token (no remote POST'ing with user credentials)
 124                 $token = $request->getVal( 'wpEditToken' );
 125                 $this->mTokenOk = $this->getUser()->matchEditToken( $token );
 126
 127                 $this->uploadFormTextTop = '';
 128                 $this->uploadFormTextAfterSummary = '';
 129         }
 130
 131         /**
 132          * This page can be shown if uploading is enabled.
 133          * Handle permission checking elsewhere in order to be able to show
 134          * custom error messages.
 135          *
 136          * @param User $user
 137          * @return bool
 138          */
 139         public function userCanExecute( User $user ) {
 140                 return UploadBase::isEnabled() && parent::userCanExecute( $user );
 141         }
 142
 143         /**
 144          * Special page entry point
 145          * @param string $par
 146          */
 147         public function execute( $par ) {
 148                 $this->setHeaders();
 149                 $this->outputHeader();
 150
 151                 # Check uploading enabled
 152                 if ( !UploadBase::isEnabled() ) {
 153                         throw new ErrorPageError( 'uploaddisabled', 'uploaddisabledtext' );
 154                 }
 155
 156                 # Check permissions
 157                 $user = $this->getUser();
 158                 $permissionRequired = UploadBase::isAllowed( $user );
 159                 if ( $permissionRequired !== true ) {
 160                         throw new PermissionsError( $permissionRequired );
 161                 }
 162
 163                 # Check blocks
 164                 if ( $user->isBlocked() ) {
 165                         throw new UserBlockedError( $user->getBlock() );
 166                 }
 167
 168                 # Check whether we actually want to allow changing stuff
 169                 $this->checkReadOnly();
 170
 171                 $this->loadRequest();
 172
 173                 # Unsave the temporary file in case this was a cancelled upload
 174                 if ( $this->mCancelUpload ) {
 175                         if ( !$this->unsaveUploadedFile() ) {
 176                                 # Something went wrong, so unsaveUploadedFile showed a warning
 177                                 return;
 178                         }
 179                 }
 180
 181                 # Process upload or show a form
 182                 if (
 183                         $this->mTokenOk && !$this->mCancelUpload &&
 184                         ( $this->mUpload && $this->mUploadClicked )
 185                 ) {
 186                         $this->processUpload();
 187                 } else {
 188                         # Backwards compatibility hook
 189                         if ( !wfRunHooks( 'UploadForm:initial', array( &$this ) ) ) {
 190                                 wfDebug( "Hook 'UploadForm:initial' broke output of the upload form\n" );
 191
 192                                 return;
 193                         }
 194                         $this->showUploadForm( $this->getUploadForm() );
 195                 }
 196
 197                 # Cleanup
 198                 if ( $this->mUpload ) {
 199                         $this->mUpload->cleanupTempFile();
 200                 }
 201         }
 202
 203         /**
 204          * Show the main upload form
 205          *
 206          * @param HTMLForm|string $form An HTMLForm instance or HTML string to show
 207          */
 208         protected function showUploadForm( $form ) {
 209                 # Add links if file was previously deleted
 210                 if ( $this->mDesiredDestName ) {
 211                         $this->showViewDeletedLinks();
 212                 }
 213
 214                 if ( $form instanceof HTMLForm ) {
 215                         $form->show();
 216                 } else {
 217                         $this->getOutput()->addHTML( $form );
 218                 }
 219         }
 220
 221         /**
 222          * Get an UploadForm instance with title and text properly set.
 223          *
 224          * @param string $message HTML string to add to the form
 225          * @param string $sessionKey Session key in case this is a stashed upload
 226          * @param bool $hideIgnoreWarning Whether to hide "ignore warning" check box
 227          * @return UploadForm
 228          */
 229         protected function getUploadForm( $message = '', $sessionKey = '', $hideIgnoreWarning = false ) {
 230                 # Initialize form
 231                 $context = new DerivativeContext( $this->getContext() );
 232                 $context->setTitle( $this->getPageTitle() ); // Remove subpage
 233                 $form = new UploadForm( array(
 234                         'watch' => $this->getWatchCheck(),
 235                         'forreupload' => $this->mForReUpload,
 236                         'sessionkey' => $sessionKey,
 237                         'hideignorewarning' => $hideIgnoreWarning,
 238                         'destwarningack' => (bool)$this->mDestWarningAck,
 239
 240                         'description' => $this->mComment,
 241                         'texttop' => $this->uploadFormTextTop,
 242                         'textaftersummary' => $this->uploadFormTextAfterSummary,
 243                         'destfile' => $this->mDesiredDestName,
 244                 ), $context );
 245
 246                 # Check the token, but only if necessary
 247                 if (
 248                         !$this->mTokenOk && !$this->mCancelUpload &&
 249                         ( $this->mUpload && $this->mUploadClicked )
 250                 ) {
 251                         $form->addPreText( $this->msg( 'session_fail_preview' )->parse() );
 252                 }
 253
 254                 # Give a notice if the user is uploading a file that has been deleted or moved
 255                 # Note that this is independent from the message 'filewasdeleted' that requires JS
 256                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 257                 $delNotice = ''; // empty by default
 258                 if ( $desiredTitleObj instanceof Title && !$desiredTitleObj->exists() ) {
 259                         LogEventsList::showLogExtract( $delNotice, array( 'delete', 'move' ),
 260                                 $desiredTitleObj,
 261                                 '', array( 'lim' => 10,
 262                                         'conds' => array( "log_action != 'revision'" ),
 263                                         'showIfEmpty' => false,
 264                                         'msgKey' => array( 'upload-recreate-warning' ) )
 265                         );
 266                 }
 267                 $form->addPreText( $delNotice );
 268
 269                 # Add text to form
 270                 $form->addPreText( '<div id="uploadtext">' .
 271                         $this->msg( 'uploadtext', array( $this->mDesiredDestName ) )->parseAsBlock() .
 272                         '</div>' );
 273                 # Add upload error message
 274                 $form->addPreText( $message );
 275
 276                 # Add footer to form
 277                 $uploadFooter = $this->msg( 'uploadfooter' );
 278                 if ( !$uploadFooter->isDisabled() ) {
 279                         $form->addPostText( '<div id="mw-upload-footer-message">'
 280                                 . $uploadFooter->parseAsBlock() . "</div>\n" );
 281                 }
 282
 283                 return $form;
 284         }
 285
 286         /**
 287          * Shows the "view X deleted revivions link""
 288          */
 289         protected function showViewDeletedLinks() {
 290                 $title = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 291                 $user = $this->getUser();
 292                 // Show a subtitle link to deleted revisions (to sysops et al only)
 293                 if ( $title instanceof Title ) {
 294                         $count = $title->isDeleted();
 295                         if ( $count > 0 && $user->isAllowed( 'deletedhistory' ) ) {
 296                                 $restorelink = Linker::linkKnown(
 297                                         SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
 298                                         $this->msg( 'restorelink' )->numParams( $count )->escaped()
 299                                 );
 300                                 $link = $this->msg( $user->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted' )
 301                                         ->rawParams( $restorelink )->parseAsBlock();
 302                                 $this->getOutput()->addHTML( "<div id=\"contentSub2\">{$link}</div>" );
 303                         }
 304                 }
 305         }
 306
 307         /**
 308          * Stashes the upload and shows the main upload form.
 309          *
 310          * Note: only errors that can be handled by changing the name or
 311          * description should be redirected here. It should be assumed that the
 312          * file itself is sane and has passed UploadBase::verifyFile. This
 313          * essentially means that UploadBase::VERIFICATION_ERROR and
 314          * UploadBase::EMPTY_FILE should not be passed here.
 315          *
 316          * @param string $message HTML message to be passed to mainUploadForm
 317          */
 318         protected function showRecoverableUploadError( $message ) {
 319                 $sessionKey = $this->mUpload->stashSession();
 320                 $message = '<h2>' . $this->msg( 'uploaderror' )->escaped() . "</h2>\n" .
 321                         '<div class="error">' . $message . "</div>\n";
 322
 323                 $form = $this->getUploadForm( $message, $sessionKey );
 324                 $form->setSubmitText( $this->msg( 'upload-tryagain' )->escaped() );
 325                 $this->showUploadForm( $form );
 326         }
 327
 328         /**
 329          * Stashes the upload, shows the main form, but adds a "continue anyway button".
 330          * Also checks whether there are actually warnings to display.
 331          *
 332          * @param array $warnings
 333          * @return bool True if warnings were displayed, false if there are no
 334          *   warnings and it should continue processing
 335          */
 336         protected function showUploadWarning( $warnings ) {
 337                 # If there are no warnings, or warnings we can ignore, return early.
 338                 # mDestWarningAck is set when some javascript has shown the warning
 339                 # to the user. mForReUpload is set when the user clicks the "upload a
 340                 # new version" link.
 341                 if ( !$warnings || ( count( $warnings ) == 1
 342                         && isset( $warnings['exists'] )
 343                         && ( $this->mDestWarningAck || $this->mForReUpload ) )
 344                 ) {
 345                         return false;
 346                 }
 347
 348                 $sessionKey = $this->mUpload->stashSession();
 349
 350                 $warningHtml = '<h2>' . $this->msg( 'uploadwarning' )->escaped() . "</h2>\n"
 351                         . '<ul class="warning">';
 352                 foreach ( $warnings as $warning => $args ) {
 353                         if ( $warning == 'badfilename' ) {
 354                                 $this->mDesiredDestName = Title::makeTitle( NS_FILE, $args )->getText();
 355                         }
 356                         if ( $warning == 'exists' ) {
 357                                 $msg = "\t<li>" . self::getExistsWarning( $args ) . "</li>\n";
 358                         } elseif ( $warning == 'duplicate' ) {
 359                                 $msg = $this->getDupeWarning( $args );
 360                         } elseif ( $warning == 'duplicate-archive' ) {
 361                                 if ( $args === '' ) {
 362                                         $msg = "\t<li>" . $this->msg( 'file-deleted-duplicate-notitle' )->parse()
 363                                                 . "</li>\n";
 364                                 } else {
 365                                         $msg = "\t<li>" . $this->msg( 'file-deleted-duplicate',
 366                                                         Title::makeTitle( NS_FILE, $args )->getPrefixedText() )->parse()
 367                                                 . "</li>\n";
 368                                 }
 369                         } else {
 370                                 if ( $args === true ) {
 371                                         $args = array();
 372                                 } elseif ( !is_array( $args ) ) {
 373                                         $args = array( $args );
 374                                 }
 375                                 $msg = "\t<li>" . $this->msg( $warning, $args )->parse() . "</li>\n";
 376                         }
 377                         $warningHtml .= $msg;
 378                 }
 379                 $warningHtml .= "</ul>\n";
 380                 $warningHtml .= $this->msg( 'uploadwarning-text' )->parseAsBlock();
 381
 382                 $form = $this->getUploadForm( $warningHtml, $sessionKey, /* $hideIgnoreWarning */ true );
 383                 $form->setSubmitText( $this->msg( 'upload-tryagain' )->text() );
 384                 $form->addButton( 'wpUploadIgnoreWarning', $this->msg( 'ignorewarning' )->text() );
 385                 $form->addButton( 'wpCancelUpload', $this->msg( 'reuploaddesc' )->text() );
 386
 387                 $this->showUploadForm( $form );
 388
 389                 # Indicate that we showed a form
 390                 return true;
 391         }
 392
 393         /**
 394          * Show the upload form with error message, but do not stash the file.
 395          *
 396          * @param string $message HTML string
 397          */
 398         protected function showUploadError( $message ) {
 399                 $message = '<h2>' . $this->msg( 'uploadwarning' )->escaped() . "</h2>\n" .
 400                         '<div class="error">' . $message . "</div>\n";
 401                 $this->showUploadForm( $this->getUploadForm( $message ) );
 402         }
 403
 404         /**
 405          * Do the upload.
 406          * Checks are made in SpecialUpload::execute()
 407          */
 408         protected function processUpload() {
 409                 // Fetch the file if required
 410                 $status = $this->mUpload->fetchFile();
 411                 if ( !$status->isOK() ) {
 412                         $this->showUploadError( $this->getOutput()->parse( $status->getWikiText() ) );
 413
 414                         return;
 415                 }
 416
 417                 if ( !wfRunHooks( 'UploadForm:BeforeProcessing', array( &$this ) ) ) {
 418                         wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file.\n" );
 419                         // This code path is deprecated. If you want to break upload processing
 420                         // do so by hooking into the appropriate hooks in UploadBase::verifyUpload
 421                         // and UploadBase::verifyFile.
 422                         // If you use this hook to break uploading, the user will be returned
 423                         // an empty form with no error message whatsoever.
 424                         return;
 425                 }
 426
 427                 // Upload verification
 428                 $details = $this->mUpload->verifyUpload();
 429                 if ( $details['status'] != UploadBase::OK ) {
 430                         $this->processVerificationError( $details );
 431
 432                         return;
 433                 }
 434
 435                 // Verify permissions for this title
 436                 $permErrors = $this->mUpload->verifyTitlePermissions( $this->getUser() );
 437                 if ( $permErrors !== true ) {
 438                         $code = array_shift( $permErrors[0] );
 439                         $this->showRecoverableUploadError( $this->msg( $code, $permErrors[0] )->parse() );
 440
 441                         return;
 442                 }
 443
 444                 $this->mLocalFile = $this->mUpload->getLocalFile();
 445
 446                 // Check warnings if necessary
 447                 if ( !$this->mIgnoreWarning ) {
 448                         $warnings = $this->mUpload->checkWarnings();
 449                         if ( $this->showUploadWarning( $warnings ) ) {
 450                                 return;
 451                         }
 452                 }
 453
 454                 // Get the page text if this is not a reupload
 455                 if ( !$this->mForReUpload ) {
 456                         $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
 457                                 $this->mCopyrightStatus, $this->mCopyrightSource );
 458                 } else {
 459                         $pageText = false;
 460                 }
 461
 462                 $status = $this->mUpload->performUpload(
 463                         $this->mComment,
 464                         $pageText,
 465                         $this->mWatchthis,
 466                         $this->getUser()
 467                 );
 468
 469                 if ( !$status->isGood() ) {
 470                         $this->showUploadError( $this->getOutput()->parse( $status->getWikiText() ) );
 471
 472                         return;
 473                 }
 474
 475                 // Success, redirect to description page
 476                 $this->mUploadSuccessful = true;
 477                 wfRunHooks( 'SpecialUploadComplete', array( &$this ) );
 478                 $this->getOutput()->redirect( $this->mLocalFile->getTitle()->getFullURL() );
 479         }
 480
 481         /**
 482          * Get the initial image page text based on a comment and optional file status information
 483          * @param string $comment
 484          * @param string $license
 485          * @param string $copyStatus
 486          * @param string $source
 487          * @return string
 488          */
 489         public static function getInitialPageText( $comment = '', $license = '',
 490                 $copyStatus = '', $source = ''
 491         ) {
 492                 global $wgUseCopyrightUpload, $wgForceUIMsgAsContentMsg;
 493
 494                 $msg = array();
 495                 /* These messages are transcluded into the actual text of the description page.
 496                  * Thus, forcing them as content messages makes the upload to produce an int: template
 497                  * instead of hardcoding it there in the uploader language.
 498                  */
 499                 foreach ( array( 'license-header', 'filedesc', 'filestatus', 'filesource' ) as $msgName ) {
 500                         if ( in_array( $msgName, (array)$wgForceUIMsgAsContentMsg ) ) {
 501                                 $msg[$msgName] = "{{int:$msgName}}";
 502                         } else {
 503                                 $msg[$msgName] = wfMessage( $msgName )->inContentLanguage()->text();
 504                         }
 505                 }
 506
 507                 if ( $wgUseCopyrightUpload ) {
 508                         $licensetxt = '';
 509                         if ( $license != '' ) {
 510                                 $licensetxt = '== ' . $msg['license-header'] . " ==\n" . '{{' . $license . '}}' . "\n";
 511                         }
 512                         $pageText = '== ' . $msg['filedesc'] . " ==\n" . $comment . "\n" .
 513                                 '== ' . $msg['filestatus'] . " ==\n" . $copyStatus . "\n" .
 514                                 "$licensetxt" .
 515                                 '== ' . $msg['filesource'] . " ==\n" . $source;
 516                 } else {
 517                         if ( $license != '' ) {
 518                                 $filedesc = $comment == '' ? '' : '== ' . $msg['filedesc'] . " ==\n" . $comment . "\n";
 519                                         $pageText = $filedesc .
 520                                         '== ' . $msg['license-header'] . " ==\n" . '{{' . $license . '}}' . "\n";
 521                         } else {
 522                                 $pageText = $comment;
 523                         }
 524                 }
 525
 526                 return $pageText;
 527         }
 528
 529         /**
 530          * See if we should check the 'watch this page' checkbox on the form
 531          * based on the user's preferences and whether we're being asked
 532          * to create a new file or update an existing one.
 533          *
 534          * In the case where 'watch edits' is off but 'watch creations' is on,
 535          * we'll leave the box unchecked.
 536          *
 537          * Note that the page target can be changed *on the form*, so our check
 538          * state can get out of sync.
 539          * @return bool|string
 540          */
 541         protected function getWatchCheck() {
 542                 if ( $this->getUser()->getOption( 'watchdefault' ) ) {
 543                         // Watch all edits!
 544                         return true;
 545                 }
 546
 547                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 548                 if ( $desiredTitleObj instanceof Title && $this->getUser()->isWatched( $desiredTitleObj ) ) {
 549                         // Already watched, don't change that
 550                         return true;
 551                 }
 552
 553                 $local = wfLocalFile( $this->mDesiredDestName );
 554                 if ( $local && $local->exists() ) {
 555                         // We're uploading a new version of an existing file.
 556                         // No creation, so don't watch it if we're not already.
 557                         return false;
 558                 } else {
 559                         // New page should get watched if that's our option.
 560                         return $this->getUser()->getOption( 'watchcreations' );
 561                 }
 562         }
 563
 564         /**
 565          * Provides output to the user for a result of UploadBase::verifyUpload
 566          *
 567          * @param array $details Result of UploadBase::verifyUpload
 568          * @throws MWException
 569          */
 570         protected function processVerificationError( $details ) {
 571                 global $wgFileExtensions;
 572
 573                 switch ( $details['status'] ) {
 574
 575                         /** Statuses that only require name changing **/
 576                         case UploadBase::MIN_LENGTH_PARTNAME:
 577                                 $this->showRecoverableUploadError( $this->msg( 'minlength1' )->escaped() );
 578                                 break;
 579                         case UploadBase::ILLEGAL_FILENAME:
 580                                 $this->showRecoverableUploadError( $this->msg( 'illegalfilename',
 581                                         $details['filtered'] )->parse() );
 582                                 break;
 583                         case UploadBase::FILENAME_TOO_LONG:
 584                                 $this->showRecoverableUploadError( $this->msg( 'filename-toolong' )->escaped() );
 585                                 break;
 586                         case UploadBase::FILETYPE_MISSING:
 587                                 $this->showRecoverableUploadError( $this->msg( 'filetype-missing' )->parse() );
 588                                 break;
 589                         case UploadBase::WINDOWS_NONASCII_FILENAME:
 590                                 $this->showRecoverableUploadError( $this->msg( 'windows-nonascii-filename' )->parse() );
 591                                 break;
 592
 593                         /** Statuses that require reuploading **/
 594                         case UploadBase::EMPTY_FILE:
 595                                 $this->showUploadError( $this->msg( 'emptyfile' )->escaped() );
 596                                 break;
 597                         case UploadBase::FILE_TOO_LARGE:
 598                                 $this->showUploadError( $this->msg( 'largefileserver' )->escaped() );
 599                                 break;
 600                         case UploadBase::FILETYPE_BADTYPE:
 601                                 $msg = $this->msg( 'filetype-banned-type' );
 602                                 if ( isset( $details['blacklistedExt'] ) ) {
 603                                         $msg->params( $this->getLanguage()->commaList( $details['blacklistedExt'] ) );
 604                                 } else {
 605                                         $msg->params( $details['finalExt'] );
 606                                 }
 607                                 $extensions = array_unique( $wgFileExtensions );
 608                                 $msg->params( $this->getLanguage()->commaList( $extensions ),
 609                                         count( $extensions ) );
 610
 611                                 // Add PLURAL support for the first parameter. This results
 612                                 // in a bit unlogical parameter sequence, but does not break
 613                                 // old translations
 614                                 if ( isset( $details['blacklistedExt'] ) ) {
 615                                         $msg->params( count( $details['blacklistedExt'] ) );
 616                                 } else {
 617                                         $msg->params( 1 );
 618                                 }
 619
 620                                 $this->showUploadError( $msg->parse() );
 621                                 break;
 622                         case UploadBase::VERIFICATION_ERROR:
 623                                 unset( $details['status'] );
 624                                 $code = array_shift( $details['details'] );
 625                                 $this->showUploadError( $this->msg( $code, $details['details'] )->parse() );
 626                                 break;
 627                         case UploadBase::HOOK_ABORTED:
 628                                 if ( is_array( $details['error'] ) ) { # allow hooks to return error details in an array
 629                                         $args = $details['error'];
 630                                         $error = array_shift( $args );
 631                                 } else {
 632                                         $error = $details['error'];
 633                                         $args = null;
 634                                 }
 635
 636                                 $this->showUploadError( $this->msg( $error, $args )->parse() );
 637                                 break;
 638                         default:
 639                                 throw new MWException( __METHOD__ . ": Unknown value `{$details['status']}`" );
 640                 }
 641         }
 642
 643         /**
 644          * Remove a temporarily kept file stashed by saveTempUploadedFile().
 645          *
 646          * @return bool Success
 647          */
 648         protected function unsaveUploadedFile() {
 649                 if ( !( $this->mUpload instanceof UploadFromStash ) ) {
 650                         return true;
 651                 }
 652                 $success = $this->mUpload->unsaveUploadedFile();
 653                 if ( !$success ) {
 654                         $this->getOutput()->showFileDeleteError( $this->mUpload->getTempPath() );
 655
 656                         return false;
 657                 } else {
 658                         return true;
 659                 }
 660         }
 661
 662         /*** Functions for formatting warnings ***/
 663
 664         /**
 665          * Formats a result of UploadBase::getExistsWarning as HTML
 666          * This check is static and can be done pre-upload via AJAX
 667          *
 668          * @param array $exists The result of UploadBase::getExistsWarning
 669          * @return string Empty string if there is no warning or an HTML fragment
 670          */
 671         public static function getExistsWarning( $exists ) {
 672                 if ( !$exists ) {
 673                         return '';
 674                 }
 675
 676                 $file = $exists['file'];
 677                 $filename = $file->getTitle()->getPrefixedText();
 678                 $warning = '';
 679
 680                 if ( $exists['warning'] == 'exists' ) {
 681                         // Exact match
 682                         $warning = wfMessage( 'fileexists', $filename )->parse();
 683                 } elseif ( $exists['warning'] == 'page-exists' ) {
 684                         // Page exists but file does not
 685                         $warning = wfMessage( 'filepageexists', $filename )->parse();
 686                 } elseif ( $exists['warning'] == 'exists-normalized' ) {
 687                         $warning = wfMessage( 'fileexists-extension', $filename,
 688                                 $exists['normalizedFile']->getTitle()->getPrefixedText() )->parse();
 689                 } elseif ( $exists['warning'] == 'thumb' ) {
 690                         // Swapped argument order compared with other messages for backwards compatibility
 691                         $warning = wfMessage( 'fileexists-thumbnail-yes',
 692                                 $exists['thumbFile']->getTitle()->getPrefixedText(), $filename )->parse();
 693                 } elseif ( $exists['warning'] == 'thumb-name' ) {
 694                         // Image w/o '180px-' does not exists, but we do not like these filenames
 695                         $name = $file->getName();
 696                         $badPart = substr( $name, 0, strpos( $name, '-' ) + 1 );
 697                         $warning = wfMessage( 'file-thumbnail-no', $badPart )->parse();
 698                 } elseif ( $exists['warning'] == 'bad-prefix' ) {
 699                         $warning = wfMessage( 'filename-bad-prefix', $exists['prefix'] )->parse();
 700                 } elseif ( $exists['warning'] == 'was-deleted' ) {
 701                         # If the file existed before and was deleted, warn the user of this
 702                         $ltitle = SpecialPage::getTitleFor( 'Log' );
 703                         $llink = Linker::linkKnown(
 704                                 $ltitle,
 705                                 wfMessage( 'deletionlog' )->escaped(),
 706                                 array(),
 707                                 array(
 708                                         'type' => 'delete',
 709                                         'page' => $filename
 710                                 )
 711                         );
 712                         $warning = wfMessage( 'filewasdeleted' )->rawParams( $llink )->parseAsBlock();
 713                 }
 714
 715                 return $warning;
 716         }
 717
 718         /**
 719          * Construct a warning and a gallery from an array of duplicate files.
 720          * @param array $dupes
 721          * @return string
 722          */
 723         public function getDupeWarning( $dupes ) {
 724                 if ( !$dupes ) {
 725                         return '';
 726                 }
 727
 728                 $gallery = ImageGalleryBase::factory();
 729                 $gallery->setContext( $this->getContext() );
 730                 $gallery->setShowBytes( false );
 731                 foreach ( $dupes as $file ) {
 732                         $gallery->add( $file->getTitle() );
 733                 }
 734
 735                 return '<li>' .
 736                         wfMessage( 'file-exists-duplicate' )->numParams( count( $dupes ) )->parse() .
 737                         $gallery->toHtml() . "</li>\n";
 738         }
 739
 740         protected function getGroupName() {
 741                 return 'media';
 742         }
 743 }
 744
 745 /**
 746  * Sub class of HTMLForm that provides the form section of SpecialUpload
 747  */
 748 class UploadForm extends HTMLForm {
 749         protected $mWatch;
 750         protected $mForReUpload;
 751         protected $mSessionKey;
 752         protected $mHideIgnoreWarning;
 753         protected $mDestWarningAck;
 754         protected $mDestFile;
 755
 756         protected $mComment;
 757         protected $mTextTop;
 758         protected $mTextAfterSummary;
 759
 760         protected $mSourceIds;
 761
 762         protected $mMaxFileSize = array();
 763
 764         protected $mMaxUploadSize = array();
 765
 766         public function __construct( array $options = array(), IContextSource $context = null ) {
 767                 $this->mWatch = !empty( $options['watch'] );
 768                 $this->mForReUpload = !empty( $options['forreupload'] );
 769                 $this->mSessionKey = isset( $options['sessionkey'] ) ? $options['sessionkey'] : '';
 770                 $this->mHideIgnoreWarning = !empty( $options['hideignorewarning'] );
 771                 $this->mDestWarningAck = !empty( $options['destwarningack'] );
 772                 $this->mDestFile = isset( $options['destfile'] ) ? $options['destfile'] : '';
 773
 774                 $this->mComment = isset( $options['description'] ) ?
 775                         $options['description'] : '';
 776
 777                 $this->mTextTop = isset( $options['texttop'] )
 778                         ? $options['texttop'] : '';
 779
 780                 $this->mTextAfterSummary = isset( $options['textaftersummary'] )
 781                         ? $options['textaftersummary'] : '';
 782
 783                 $sourceDescriptor = $this->getSourceSection();
 784                 $descriptor = $sourceDescriptor
 785                         + $this->getDescriptionSection()
 786                         + $this->getOptionsSection();
 787
 788                 wfRunHooks( 'UploadFormInitDescriptor', array( &$descriptor ) );
 789                 parent::__construct( $descriptor, $context, 'upload' );
 790
 791                 # Add a link to edit MediaWik:Licenses
 792                 if ( $this->getUser()->isAllowed( 'editinterface' ) ) {
 793                         $licensesLink = Linker::link(
 794                                 Title::makeTitle( NS_MEDIAWIKI, 'Licenses' ),
 795                                 $this->msg( 'licenses-edit' )->escaped(),
 796                                 array(),
 797                                 array( 'action' => 'edit' )
 798                         );
 799                         $editLicenses = '<p class="mw-upload-editlicenses">' . $licensesLink . '</p>';
 800                         $this->addFooterText( $editLicenses, 'description' );
 801                 }
 802
 803                 # Set some form properties
 804                 $this->setSubmitText( $this->msg( 'uploadbtn' )->text() );
 805                 $this->setSubmitName( 'wpUpload' );
 806                 # Used message keys: 'accesskey-upload', 'tooltip-upload'
 807                 $this->setSubmitTooltip( 'upload' );
 808                 $this->setId( 'mw-upload-form' );
 809
 810                 # Build a list of IDs for javascript insertion
 811                 $this->mSourceIds = array();
 812                 foreach ( $sourceDescriptor as $field ) {
 813                         if ( !empty( $field['id'] ) ) {
 814                                 $this->mSourceIds[] = $field['id'];
 815                         }
 816                 }
 817         }
 818
 819         /**
 820          * Get the descriptor of the fieldset that contains the file source
 821          * selection. The section is 'source'
 822          *
 823          * @return array Descriptor array
 824          */
 825         protected function getSourceSection() {
 826                 global $wgCopyUploadsFromSpecialUpload;
 827
 828                 if ( $this->mSessionKey ) {
 829                         return array(
 830                                 'SessionKey' => array(
 831                                         'type' => 'hidden',
 832                                         'default' => $this->mSessionKey,
 833                                 ),
 834                                 'SourceType' => array(
 835                                         'type' => 'hidden',
 836                                         'default' => 'Stash',
 837                                 ),
 838                         );
 839                 }
 840
 841                 $canUploadByUrl = UploadFromUrl::isEnabled()
 842                         && ( UploadFromUrl::isAllowed( $this->getUser() ) === true )
 843                         && $wgCopyUploadsFromSpecialUpload;
 844                 $radio = $canUploadByUrl;
 845                 $selectedSourceType = strtolower( $this->getRequest()->getText( 'wpSourceType', 'File' ) );
 846
 847                 $descriptor = array();
 848                 if ( $this->mTextTop ) {
 849                         $descriptor['UploadFormTextTop'] = array(
 850                                 'type' => 'info',
 851                                 'section' => 'source',
 852                                 'default' => $this->mTextTop,
 853                                 'raw' => true,
 854                         );
 855                 }
 856
 857                 $this->mMaxUploadSize['file'] = UploadBase::getMaxUploadSize( 'file' );
 858                 # Limit to upload_max_filesize unless we are running under HipHop and
 859                 # that setting doesn't exist
 860                 if ( !wfIsHHVM() ) {
 861                         $this->mMaxUploadSize['file'] = min( $this->mMaxUploadSize['file'],
 862                                 wfShorthandToInteger( ini_get( 'upload_max_filesize' ) ),
 863                                 wfShorthandToInteger( ini_get( 'post_max_size' ) )
 864                         );
 865                 }
 866
 867                 $descriptor['UploadFile'] = array(
 868                         'class' => 'UploadSourceField',
 869                         'section' => 'source',
 870                         'type' => 'file',
 871                         'id' => 'wpUploadFile',
 872                         'radio-id' => 'wpSourceTypeFile',
 873                         'label-message' => 'sourcefilename',
 874                         'upload-type' => 'File',
 875                         'radio' => &$radio,
 876                         'help' => $this->msg( 'upload-maxfilesize',
 877                                 $this->getContext()->getLanguage()->formatSize( $this->mMaxUploadSize['file'] )
 878                         )->parse() .
 879                                 $this->msg( 'word-separator' )->escaped() .
 880                                 $this->msg( 'upload_source_file' )->escaped(),
 881                         'checked' => $selectedSourceType == 'file',
 882                 );
 883
 884                 if ( $canUploadByUrl ) {
 885                         $this->mMaxUploadSize['url'] = UploadBase::getMaxUploadSize( 'url' );
 886                         $descriptor['UploadFileURL'] = array(
 887                                 'class' => 'UploadSourceField',
 888                                 'section' => 'source',
 889                                 'id' => 'wpUploadFileURL',
 890                                 'radio-id' => 'wpSourceTypeurl',
 891                                 'label-message' => 'sourceurl',
 892                                 'upload-type' => 'url',
 893                                 'radio' => &$radio,
 894                                 'help' => $this->msg( 'upload-maxfilesize',
 895                                         $this->getContext()->getLanguage()->formatSize( $this->mMaxUploadSize['url'] )
 896                                 )->parse() .
 897                                         $this->msg( 'word-separator' )->escaped() .
 898                                         $this->msg( 'upload_source_url' )->escaped(),
 899                                 'checked' => $selectedSourceType == 'url',
 900                         );
 901                 }
 902                 wfRunHooks( 'UploadFormSourceDescriptors', array( &$descriptor, &$radio, $selectedSourceType ) );
 903
 904                 $descriptor['Extensions'] = array(
 905                         'type' => 'info',
 906                         'section' => 'source',
 907                         'default' => $this->getExtensionsMessage(),
 908                         'raw' => true,
 909                 );
 910
 911                 return $descriptor;
 912         }
 913
 914         /**
 915          * Get the messages indicating which extensions are preferred and prohibitted.
 916          *
 917          * @return string HTML string containing the message
 918          */
 919         protected function getExtensionsMessage() {
 920                 # Print a list of allowed file extensions, if so configured.  We ignore
 921                 # MIME type here, it's incomprehensible to most people and too long.
 922                 global $wgCheckFileExtensions, $wgStrictFileExtensions,
 923                         $wgFileExtensions, $wgFileBlacklist;
 924
 925                 if ( $wgCheckFileExtensions ) {
 926                         if ( $wgStrictFileExtensions ) {
 927                                 # Everything not permitted is banned
 928                                 $extensionsList =
 929                                         '<div id="mw-upload-permitted">' .
 930                                         $this->msg(
 931                                                 'upload-permitted',
 932                                                 $this->getContext()->getLanguage()->commaList( array_unique( $wgFileExtensions ) )
 933                                         )->parseAsBlock() .
 934                                         "</div>\n";
 935                         } else {
 936                                 # We have to list both preferred and prohibited
 937                                 $extensionsList =
 938                                         '<div id="mw-upload-preferred">' .
 939                                                 $this->msg(
 940                                                         'upload-preferred',
 941                                                         $this->getContext()->getLanguage()->commaList( array_unique( $wgFileExtensions ) )
 942                                                 )->parseAsBlock() .
 943                                         "</div>\n" .
 944                                         '<div id="mw-upload-prohibited">' .
 945                                                 $this->msg(
 946                                                         'upload-prohibited',
 947                                                         $this->getContext()->getLanguage()->commaList( array_unique( $wgFileBlacklist ) )
 948                                                 )->parseAsBlock() .
 949                                         "</div>\n";
 950                         }
 951                 } else {
 952                         # Everything is permitted.
 953                         $extensionsList = '';
 954                 }
 955
 956                 return $extensionsList;
 957         }
 958
 959         /**
 960          * Get the descriptor of the fieldset that contains the file description
 961          * input. The section is 'description'
 962          *
 963          * @return array Descriptor array
 964          */
 965         protected function getDescriptionSection() {
 966                 if ( $this->mSessionKey ) {
 967                         $stash = RepoGroup::singleton()->getLocalRepo()->getUploadStash();
 968                         try {
 969                                 $file = $stash->getFile( $this->mSessionKey );
 970                         } catch ( MWException $e ) {
 971                                 $file = null;
 972                         }
 973                         if ( $file ) {
 974                                 global $wgContLang;
 975
 976                                 $mto = $file->transform( array( 'width' => 120 ) );
 977                                 $this->addHeaderText(
 978                                         '<div class="thumb t' . $wgContLang->alignEnd() . '">' .
 979                                         Html::element( 'img', array(
 980                                                 'src' => $mto->getUrl(),
 981                                                 'class' => 'thumbimage',
 982                                         ) ) . '</div>', 'description' );
 983                         }
 984                 }
 985
 986                 $descriptor = array(
 987                         'DestFile' => array(
 988                                 'type' => 'text',
 989                                 'section' => 'description',
 990                                 'id' => 'wpDestFile',
 991                                 'label-message' => 'destfilename',
 992                                 'size' => 60,
 993                                 'default' => $this->mDestFile,
 994                                 # @todo FIXME: Hack to work around poor handling of the 'default' option in HTMLForm
 995                                 'nodata' => strval( $this->mDestFile ) !== '',
 996                         ),
 997                         'UploadDescription' => array(
 998                                 'type' => 'textarea',
 999                                 'section' => 'description',
1000                                 'id' => 'wpUploadDescription',
1001                                 'label-message' => $this->mForReUpload
1002                                         ? 'filereuploadsummary'
1003                                         : 'fileuploadsummary',
1004                                 'default' => $this->mComment,
1005                                 'cols' => $this->getUser()->getIntOption( 'cols' ),
1006                                 'rows' => 8,
1007                         )
1008                 );
1009                 if ( $this->mTextAfterSummary ) {
1010                         $descriptor['UploadFormTextAfterSummary'] = array(
1011                                 'type' => 'info',
1012                                 'section' => 'description',
1013                                 'default' => $this->mTextAfterSummary,
1014                                 'raw' => true,
1015                         );
1016                 }
1017
1018                 $descriptor += array(
1019                         'EditTools' => array(
1020                                 'type' => 'edittools',
1021                                 'section' => 'description',
1022                                 'message' => 'edittools-upload',
1023                         )
1024                 );
1025
1026                 if ( $this->mForReUpload ) {
1027                         $descriptor['DestFile']['readonly'] = true;
1028                 } else {
1029                         $descriptor['License'] = array(
1030                                 'type' => 'select',
1031                                 'class' => 'Licenses',
1032                                 'section' => 'description',
1033                                 'id' => 'wpLicense',
1034                                 'label-message' => 'license',
1035                         );
1036                 }
1037
1038                 global $wgUseCopyrightUpload;
1039                 if ( $wgUseCopyrightUpload ) {
1040                         $descriptor['UploadCopyStatus'] = array(
1041                                 'type' => 'text',
1042                                 'section' => 'description',
1043                                 'id' => 'wpUploadCopyStatus',
1044                                 'label-message' => 'filestatus',
1045                         );
1046                         $descriptor['UploadSource'] = array(
1047                                 'type' => 'text',
1048                                 'section' => 'description',
1049                                 'id' => 'wpUploadSource',
1050                                 'label-message' => 'filesource',
1051                         );
1052                 }
1053
1054                 return $descriptor;
1055         }
1056
1057         /**
1058          * Get the descriptor of the fieldset that contains the upload options,
1059          * such as "watch this file". The section is 'options'
1060          *
1061          * @return array Descriptor array
1062          */
1063         protected function getOptionsSection() {
1064                 $user = $this->getUser();
1065                 if ( $user->isLoggedIn() ) {
1066                         $descriptor = array(
1067                                 'Watchthis' => array(
1068                                         'type' => 'check',
1069                                         'id' => 'wpWatchthis',
1070                                         'label-message' => 'watchthisupload',
1071                                         'section' => 'options',
1072                                         'default' => $this->mWatch,
1073                                 )
1074                         );
1075                 }
1076                 if ( !$this->mHideIgnoreWarning ) {
1077                         $descriptor['IgnoreWarning'] = array(
1078                                 'type' => 'check',
1079                                 'id' => 'wpIgnoreWarning',
1080                                 'label-message' => 'ignorewarnings',
1081                                 'section' => 'options',
1082                         );
1083                 }
1084
1085                 $descriptor['DestFileWarningAck'] = array(
1086                         'type' => 'hidden',
1087                         'id' => 'wpDestFileWarningAck',
1088                         'default' => $this->mDestWarningAck ? '1' : '',
1089                 );
1090
1091                 if ( $this->mForReUpload ) {
1092                         $descriptor['ForReUpload'] = array(
1093                                 'type' => 'hidden',
1094                                 'id' => 'wpForReUpload',
1095                                 'default' => '1',
1096                         );
1097                 }
1098
1099                 return $descriptor;
1100         }
1101
1102         /**
1103          * Add the upload JS and show the form.
1104          */
1105         public function show() {
1106                 $this->addUploadJS();
1107                 parent::show();
1108         }
1109
1110         /**
1111          * Add upload JS to the OutputPage
1112          */
1113         protected function addUploadJS() {
1114                 global $wgUseAjax, $wgAjaxUploadDestCheck, $wgAjaxLicensePreview,
1115                         $wgEnableAPI, $wgStrictFileExtensions;
1116
1117                 $useAjaxDestCheck = $wgUseAjax && $wgAjaxUploadDestCheck;
1118                 $useAjaxLicensePreview = $wgUseAjax && $wgAjaxLicensePreview && $wgEnableAPI;
1119                 $this->mMaxUploadSize['*'] = UploadBase::getMaxUploadSize();
1120
1121                 $scriptVars = array(
1122                         'wgAjaxUploadDestCheck' => $useAjaxDestCheck,
1123                         'wgAjaxLicensePreview' => $useAjaxLicensePreview,
1124                         'wgUploadAutoFill' => !$this->mForReUpload &&
1125                                 // If we received mDestFile from the request, don't autofill
1126                                 // the wpDestFile textbox
1127                                 $this->mDestFile === '',
1128                         'wgUploadSourceIds' => $this->mSourceIds,
1129                         'wgStrictFileExtensions' => $wgStrictFileExtensions,
1130                         'wgCapitalizeUploads' => MWNamespace::isCapitalized( NS_FILE ),
1131                         'wgMaxUploadSize' => $this->mMaxUploadSize,
1132                 );
1133
1134                 $out = $this->getOutput();
1135                 $out->addJsConfigVars( $scriptVars );
1136
1137                 $out->addModules( array(
1138                         'mediawiki.action.edit', // For <charinsert> support
1139                         'mediawiki.legacy.upload', // Old form stuff...
1140                         'mediawiki.special.upload', // Newer extras for thumbnail preview.
1141                 ) );
1142         }
1143
1144         /**
1145          * Empty function; submission is handled elsewhere.
1146          *
1147          * @return bool False
1148          */
1149         function trySubmit() {
1150                 return false;
1151         }
1152 }
1153
1154 /**
1155  * A form field that contains a radio box in the label
1156  */
1157 class UploadSourceField extends HTMLTextField {
1158
1159         /**
1160          * @param array $cellAttributes
1161          * @return string
1162          */
1163         function getLabelHtml( $cellAttributes = array() ) {
1164                 $id = $this->mParams['id'];
1165                 $label = Html::rawElement( 'label', array( 'for' => $id ), $this->mLabel );
1166
1167                 if ( !empty( $this->mParams['radio'] ) ) {
1168                         if ( isset( $this->mParams['radio-id'] ) ) {
1169                                 $radioId = $this->mParams['radio-id'];
1170                         } else {
1171                                 // Old way. For the benefit of extensions that do not define
1172                                 // the 'radio-id' key.
1173                                 $radioId = 'wpSourceType' . $this->mParams['upload-type'];
1174                         }
1175
1176                         $attribs = array(
1177                                 'name' => 'wpSourceType',
1178                                 'type' => 'radio',
1179                                 'id' => $radioId,
1180                                 'value' => $this->mParams['upload-type'],
1181                         );
1182
1183                         if ( !empty( $this->mParams['checked'] ) ) {
1184                                 $attribs['checked'] = 'checked';
1185                         }
1186
1187                         $label .= Html::element( 'input', $attribs );
1188                 }
1189
1190                 return Html::rawElement( 'td', array( 'class' => 'mw-label' ) + $cellAttributes, $label );
1191         }
1192
1193         /**
1194          * @return int
1195          */
1196         function getSize() {
1197                 return isset( $this->mParams['size'] )
1198                         ? $this->mParams['size']
1199                         : 60;
1200         }
1201 }