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         public function doesWrites() {
  42                 return true;
  43         }
  44
  45         /** Misc variables **/
  46
  47         /** @var WebRequest|FauxRequest The request this form is supposed to handle */
  48         public $mRequest;
  49         public $mSourceType;
  50
  51         /** @var UploadBase */
  52         public $mUpload;
  53
  54         /** @var LocalFile */
  55         public $mLocalFile;
  56         public $mUploadClicked;
  57
  58         /** User input variables from the "description" section **/
  59
  60         /** @var string The requested target file name */
  61         public $mDesiredDestName;
  62         public $mComment;
  63         public $mLicense;
  64
  65         /** User input variables from the root section **/
  66
  67         public $mIgnoreWarning;
  68         public $mWatchthis;
  69         public $mCopyrightStatus;
  70         public $mCopyrightSource;
  71
  72         /** Hidden variables **/
  73
  74         public $mDestWarningAck;
  75
  76         /** @var bool The user followed an "overwrite this file" link */
  77         public $mForReUpload;
  78
  79         /** @var bool The user clicked "Cancel and return to upload form" button */
  80         public $mCancelUpload;
  81         public $mTokenOk;
  82
  83         /** @var bool Subclasses can use this to determine whether a file was uploaded */
  84         public $mUploadSuccessful = false;
  85
  86         /** Text injection points for hooks not using HTMLForm **/
  87         public $uploadFormTextTop;
  88         public $uploadFormTextAfterSummary;
  89
  90         /**
  91          * Initialize instance variables from request and create an Upload handler
  92          */
  93         protected function loadRequest() {
  94                 $this->mRequest = $request = $this->getRequest();
  95                 $this->mSourceType = $request->getVal( 'wpSourceType', 'file' );
  96                 $this->mUpload = UploadBase::createFromRequest( $request );
  97                 $this->mUploadClicked = $request->wasPosted()
  98                         && ( $request->getCheck( 'wpUpload' )
  99                                 || $request->getCheck( 'wpUploadIgnoreWarning' ) );
 100
 101                 // Guess the desired name from the filename if not provided
 102                 $this->mDesiredDestName = $request->getText( 'wpDestFile' );
 103                 if ( !$this->mDesiredDestName && $request->getFileName( 'wpUploadFile' ) !== null ) {
 104                         $this->mDesiredDestName = $request->getFileName( 'wpUploadFile' );
 105                 }
 106                 $this->mLicense = $request->getText( 'wpLicense' );
 107
 108                 $this->mDestWarningAck = $request->getText( 'wpDestFileWarningAck' );
 109                 $this->mIgnoreWarning = $request->getCheck( 'wpIgnoreWarning' )
 110                         || $request->getCheck( 'wpUploadIgnoreWarning' );
 111                 $this->mWatchthis = $request->getBool( 'wpWatchthis' ) && $this->getUser()->isLoggedIn();
 112                 $this->mCopyrightStatus = $request->getText( 'wpUploadCopyStatus' );
 113                 $this->mCopyrightSource = $request->getText( 'wpUploadSource' );
 114
 115                 $this->mForReUpload = $request->getBool( 'wpForReUpload' ); // updating a file
 116
 117                 $commentDefault = '';
 118                 $commentMsg = wfMessage( 'upload-default-description' )->inContentLanguage();
 119                 if ( !$this->mForReUpload && !$commentMsg->isDisabled() ) {
 120                         $commentDefault = $commentMsg->plain();
 121                 }
 122                 $this->mComment = $request->getText( 'wpUploadDescription', $commentDefault );
 123
 124                 $this->mCancelUpload = $request->getCheck( 'wpCancelUpload' )
 125                         || $request->getCheck( 'wpReUpload' ); // b/w compat
 126
 127                 // If it was posted check for the token (no remote POST'ing with user credentials)
 128                 $token = $request->getVal( 'wpEditToken' );
 129                 $this->mTokenOk = $this->getUser()->matchEditToken( $token );
 130
 131                 $this->uploadFormTextTop = '';
 132                 $this->uploadFormTextAfterSummary = '';
 133         }
 134
 135         /**
 136          * This page can be shown if uploading is enabled.
 137          * Handle permission checking elsewhere in order to be able to show
 138          * custom error messages.
 139          *
 140          * @param User $user
 141          * @return bool
 142          */
 143         public function userCanExecute( User $user ) {
 144                 return UploadBase::isEnabled() && parent::userCanExecute( $user );
 145         }
 146
 147         /**
 148          * Special page entry point
 149          * @param string $par
 150          * @throws ErrorPageError
 151          * @throws Exception
 152          * @throws FatalError
 153          * @throws MWException
 154          * @throws PermissionsError
 155          * @throws ReadOnlyError
 156          * @throws UserBlockedError
 157          */
 158         public function execute( $par ) {
 159                 $this->useTransactionalTimeLimit();
 160
 161                 $this->setHeaders();
 162                 $this->outputHeader();
 163
 164                 # Check uploading enabled
 165                 if ( !UploadBase::isEnabled() ) {
 166                         throw new ErrorPageError( 'uploaddisabled', 'uploaddisabledtext' );
 167                 }
 168
 169                 $this->addHelpLink( 'Help:Managing files' );
 170
 171                 # Check permissions
 172                 $user = $this->getUser();
 173                 $permissionRequired = UploadBase::isAllowed( $user );
 174                 if ( $permissionRequired !== true ) {
 175                         throw new PermissionsError( $permissionRequired );
 176                 }
 177
 178                 # Check blocks
 179                 if ( $user->isBlocked() ) {
 180                         throw new UserBlockedError( $user->getBlock() );
 181                 }
 182
 183                 # Check whether we actually want to allow changing stuff
 184                 $this->checkReadOnly();
 185
 186                 $this->loadRequest();
 187
 188                 # Unsave the temporary file in case this was a cancelled upload
 189                 if ( $this->mCancelUpload ) {
 190                         if ( !$this->unsaveUploadedFile() ) {
 191                                 # Something went wrong, so unsaveUploadedFile showed a warning
 192                                 return;
 193                         }
 194                 }
 195
 196                 # Process upload or show a form
 197                 if (
 198                         $this->mTokenOk && !$this->mCancelUpload &&
 199                         ( $this->mUpload && $this->mUploadClicked )
 200                 ) {
 201                         $this->processUpload();
 202                 } else {
 203                         # Backwards compatibility hook
 204                         if ( !Hooks::run( 'UploadForm:initial', [ &$this ] ) ) {
 205                                 wfDebug( "Hook 'UploadForm:initial' broke output of the upload form\n" );
 206
 207                                 return;
 208                         }
 209                         $this->showUploadForm( $this->getUploadForm() );
 210                 }
 211
 212                 # Cleanup
 213                 if ( $this->mUpload ) {
 214                         $this->mUpload->cleanupTempFile();
 215                 }
 216         }
 217
 218         /**
 219          * Show the main upload form
 220          *
 221          * @param HTMLForm|string $form An HTMLForm instance or HTML string to show
 222          */
 223         protected function showUploadForm( $form ) {
 224                 # Add links if file was previously deleted
 225                 if ( $this->mDesiredDestName ) {
 226                         $this->showViewDeletedLinks();
 227                 }
 228
 229                 if ( $form instanceof HTMLForm ) {
 230                         $form->show();
 231                 } else {
 232                         $this->getOutput()->addHTML( $form );
 233                 }
 234         }
 235
 236         /**
 237          * Get an UploadForm instance with title and text properly set.
 238          *
 239          * @param string $message HTML string to add to the form
 240          * @param string $sessionKey Session key in case this is a stashed upload
 241          * @param bool $hideIgnoreWarning Whether to hide "ignore warning" check box
 242          * @return UploadForm
 243          */
 244         protected function getUploadForm( $message = '', $sessionKey = '', $hideIgnoreWarning = false ) {
 245                 # Initialize form
 246                 $context = new DerivativeContext( $this->getContext() );
 247                 $context->setTitle( $this->getPageTitle() ); // Remove subpage
 248                 $form = new UploadForm( [
 249                         'watch' => $this->getWatchCheck(),
 250                         'forreupload' => $this->mForReUpload,
 251                         'sessionkey' => $sessionKey,
 252                         'hideignorewarning' => $hideIgnoreWarning,
 253                         'destwarningack' => (bool)$this->mDestWarningAck,
 254
 255                         'description' => $this->mComment,
 256                         'texttop' => $this->uploadFormTextTop,
 257                         'textaftersummary' => $this->uploadFormTextAfterSummary,
 258                         'destfile' => $this->mDesiredDestName,
 259                 ], $context );
 260
 261                 # Check the token, but only if necessary
 262                 if (
 263                         !$this->mTokenOk && !$this->mCancelUpload &&
 264                         ( $this->mUpload && $this->mUploadClicked )
 265                 ) {
 266                         $form->addPreText( $this->msg( 'session_fail_preview' )->parse() );
 267                 }
 268
 269                 # Give a notice if the user is uploading a file that has been deleted or moved
 270                 # Note that this is independent from the message 'filewasdeleted'
 271                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 272                 $delNotice = ''; // empty by default
 273                 if ( $desiredTitleObj instanceof Title && !$desiredTitleObj->exists() ) {
 274                         LogEventsList::showLogExtract( $delNotice, [ 'delete', 'move' ],
 275                                 $desiredTitleObj,
 276                                 '', [ 'lim' => 10,
 277                                         'conds' => [ "log_action != 'revision'" ],
 278                                         'showIfEmpty' => false,
 279                                         'msgKey' => [ 'upload-recreate-warning' ] ]
 280                         );
 281                 }
 282                 $form->addPreText( $delNotice );
 283
 284                 # Add text to form
 285                 $form->addPreText( '<div id="uploadtext">' .
 286                         $this->msg( 'uploadtext', [ $this->mDesiredDestName ] )->parseAsBlock() .
 287                         '</div>' );
 288                 # Add upload error message
 289                 $form->addPreText( $message );
 290
 291                 # Add footer to form
 292                 $uploadFooter = $this->msg( 'uploadfooter' );
 293                 if ( !$uploadFooter->isDisabled() ) {
 294                         $form->addPostText( '<div id="mw-upload-footer-message">'
 295                                 . $uploadFooter->parseAsBlock() . "</div>\n" );
 296                 }
 297
 298                 return $form;
 299         }
 300
 301         /**
 302          * Shows the "view X deleted revivions link""
 303          */
 304         protected function showViewDeletedLinks() {
 305                 $title = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 306                 $user = $this->getUser();
 307                 // Show a subtitle link to deleted revisions (to sysops et al only)
 308                 if ( $title instanceof Title ) {
 309                         $count = $title->isDeleted();
 310                         if ( $count > 0 && $user->isAllowed( 'deletedhistory' ) ) {
 311                                 $restorelink = Linker::linkKnown(
 312                                         SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
 313                                         $this->msg( 'restorelink' )->numParams( $count )->escaped()
 314                                 );
 315                                 $link = $this->msg( $user->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted' )
 316                                         ->rawParams( $restorelink )->parseAsBlock();
 317                                 $this->getOutput()->addHTML( "<div id=\"contentSub2\">{$link}</div>" );
 318                         }
 319                 }
 320         }
 321
 322         /**
 323          * Stashes the upload and shows the main upload form.
 324          *
 325          * Note: only errors that can be handled by changing the name or
 326          * description should be redirected here. It should be assumed that the
 327          * file itself is sane and has passed UploadBase::verifyFile. This
 328          * essentially means that UploadBase::VERIFICATION_ERROR and
 329          * UploadBase::EMPTY_FILE should not be passed here.
 330          *
 331          * @param string $message HTML message to be passed to mainUploadForm
 332          */
 333         protected function showRecoverableUploadError( $message ) {
 334                 $sessionKey = $this->mUpload->stashSession();
 335                 $message = '<h2>' . $this->msg( 'uploaderror' )->escaped() . "</h2>\n" .
 336                         '<div class="error">' . $message . "</div>\n";
 337
 338                 $form = $this->getUploadForm( $message, $sessionKey );
 339                 $form->setSubmitText( $this->msg( 'upload-tryagain' )->escaped() );
 340                 $this->showUploadForm( $form );
 341         }
 342
 343         /**
 344          * Stashes the upload, shows the main form, but adds a "continue anyway button".
 345          * Also checks whether there are actually warnings to display.
 346          *
 347          * @param array $warnings
 348          * @return bool True if warnings were displayed, false if there are no
 349          *   warnings and it should continue processing
 350          */
 351         protected function showUploadWarning( $warnings ) {
 352                 # If there are no warnings, or warnings we can ignore, return early.
 353                 # mDestWarningAck is set when some javascript has shown the warning
 354                 # to the user. mForReUpload is set when the user clicks the "upload a
 355                 # new version" link.
 356                 if ( !$warnings || ( count( $warnings ) == 1
 357                         && isset( $warnings['exists'] )
 358                         && ( $this->mDestWarningAck || $this->mForReUpload ) )
 359                 ) {
 360                         return false;
 361                 }
 362
 363                 $sessionKey = $this->mUpload->stashSession();
 364
 365                 $warningHtml = '<h2>' . $this->msg( 'uploadwarning' )->escaped() . "</h2>\n"
 366                         . '<div class="warningbox"><ul>';
 367                 foreach ( $warnings as $warning => $args ) {
 368                         if ( $warning == 'badfilename' ) {
 369                                 $this->mDesiredDestName = Title::makeTitle( NS_FILE, $args )->getText();
 370                         }
 371                         if ( $warning == 'exists' ) {
 372                                 $msg = "\t<li>" . self::getExistsWarning( $args ) . "</li>\n";
 373                         } elseif ( $warning == 'was-deleted' ) {
 374                                 # If the file existed before and was deleted, warn the user of this
 375                                 $ltitle = SpecialPage::getTitleFor( 'Log' );
 376                                 $llink = Linker::linkKnown(
 377                                         $ltitle,
 378                                         wfMessage( 'deletionlog' )->escaped(),
 379                                         [],
 380                                         [
 381                                                 'type' => 'delete',
 382                                                 'page' => Title::makeTitle( NS_FILE, $args )->getPrefixedText(),
 383                                         ]
 384                                 );
 385                                 $msg = "\t<li>" . wfMessage( 'filewasdeleted' )->rawParams( $llink )->parse() . "</li>\n";
 386                         } elseif ( $warning == 'duplicate' ) {
 387                                 $msg = $this->getDupeWarning( $args );
 388                         } elseif ( $warning == 'duplicate-archive' ) {
 389                                 if ( $args === '' ) {
 390                                         $msg = "\t<li>" . $this->msg( 'file-deleted-duplicate-notitle' )->parse()
 391                                                 . "</li>\n";
 392                                 } else {
 393                                         $msg = "\t<li>" . $this->msg( 'file-deleted-duplicate',
 394                                                         Title::makeTitle( NS_FILE, $args )->getPrefixedText() )->parse()
 395                                                 . "</li>\n";
 396                                 }
 397                         } else {
 398                                 if ( $args === true ) {
 399                                         $args = [];
 400                                 } elseif ( !is_array( $args ) ) {
 401                                         $args = [ $args ];
 402                                 }
 403                                 $msg = "\t<li>" . $this->msg( $warning, $args )->parse() . "</li>\n";
 404                         }
 405                         $warningHtml .= $msg;
 406                 }
 407                 $warningHtml .= "</ul></div>\n";
 408                 $warningHtml .= $this->msg( 'uploadwarning-text' )->parseAsBlock();
 409
 410                 $form = $this->getUploadForm( $warningHtml, $sessionKey, /* $hideIgnoreWarning */ true );
 411                 $form->setSubmitText( $this->msg( 'upload-tryagain' )->text() );
 412                 $form->addButton( [
 413                         'name' => 'wpUploadIgnoreWarning',
 414                         'value' => $this->msg( 'ignorewarning' )->text()
 415                 ] );
 416                 $form->addButton( [
 417                         'name' => 'wpCancelUpload',
 418                         'value' => $this->msg( 'reuploaddesc' )->text()
 419                 ] );
 420
 421                 $this->showUploadForm( $form );
 422
 423                 # Indicate that we showed a form
 424                 return true;
 425         }
 426
 427         /**
 428          * Show the upload form with error message, but do not stash the file.
 429          *
 430          * @param string $message HTML string
 431          */
 432         protected function showUploadError( $message ) {
 433                 $message = '<h2>' . $this->msg( 'uploadwarning' )->escaped() . "</h2>\n" .
 434                         '<div class="error">' . $message . "</div>\n";
 435                 $this->showUploadForm( $this->getUploadForm( $message ) );
 436         }
 437
 438         /**
 439          * Do the upload.
 440          * Checks are made in SpecialUpload::execute()
 441          */
 442         protected function processUpload() {
 443                 // Fetch the file if required
 444                 $status = $this->mUpload->fetchFile();
 445                 if ( !$status->isOK() ) {
 446                         $this->showUploadError( $this->getOutput()->parse( $status->getWikiText() ) );
 447
 448                         return;
 449                 }
 450
 451                 if ( !Hooks::run( 'UploadForm:BeforeProcessing', [ &$this ] ) ) {
 452                         wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file.\n" );
 453                         // This code path is deprecated. If you want to break upload processing
 454                         // do so by hooking into the appropriate hooks in UploadBase::verifyUpload
 455                         // and UploadBase::verifyFile.
 456                         // If you use this hook to break uploading, the user will be returned
 457                         // an empty form with no error message whatsoever.
 458                         return;
 459                 }
 460
 461                 // Upload verification
 462                 $details = $this->mUpload->verifyUpload();
 463                 if ( $details['status'] != UploadBase::OK ) {
 464                         $this->processVerificationError( $details );
 465
 466                         return;
 467                 }
 468
 469                 // Verify permissions for this title
 470                 $permErrors = $this->mUpload->verifyTitlePermissions( $this->getUser() );
 471                 if ( $permErrors !== true ) {
 472                         $code = array_shift( $permErrors[0] );
 473                         $this->showRecoverableUploadError( $this->msg( $code, $permErrors[0] )->parse() );
 474
 475                         return;
 476                 }
 477
 478                 $this->mLocalFile = $this->mUpload->getLocalFile();
 479
 480                 // Check warnings if necessary
 481                 if ( !$this->mIgnoreWarning ) {
 482                         $warnings = $this->mUpload->checkWarnings();
 483                         if ( $this->showUploadWarning( $warnings ) ) {
 484                                 return;
 485                         }
 486                 }
 487
 488                 // This is as late as we can throttle, after expected issues have been handled
 489                 if ( UploadBase::isThrottled( $this->getUser() ) ) {
 490                         $this->showRecoverableUploadError(
 491                                 $this->msg( 'actionthrottledtext' )->escaped()
 492                         );
 493                         return;
 494                 }
 495
 496                 // Get the page text if this is not a reupload
 497                 if ( !$this->mForReUpload ) {
 498                         $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
 499                                 $this->mCopyrightStatus, $this->mCopyrightSource, $this->getConfig() );
 500                 } else {
 501                         $pageText = false;
 502                 }
 503
 504                 $changeTags = $this->getRequest()->getVal( 'wpChangeTags' );
 505                 if ( is_null( $changeTags ) || $changeTags === '' ) {
 506                         $changeTags = [];
 507                 } else {
 508                         $changeTags = array_filter( array_map( 'trim', explode( ',', $changeTags ) ) );
 509                 }
 510
 511                 if ( $changeTags ) {
 512                         $changeTagsStatus = ChangeTags::canAddTagsAccompanyingChange(
 513                                 $changeTags, $this->getUser() );
 514                         if ( !$changeTagsStatus->isOK() ) {
 515                                 $this->showUploadError( $this->getOutput()->parse( $changeTagsStatus->getWikiText() ) );
 516
 517                                 return;
 518                         }
 519                 }
 520
 521                 $status = $this->mUpload->performUpload(
 522                         $this->mComment,
 523                         $pageText,
 524                         $this->mWatchthis,
 525                         $this->getUser(),
 526                         $changeTags
 527                 );
 528
 529                 if ( !$status->isGood() ) {
 530                         $this->showUploadError( $this->getOutput()->parse( $status->getWikiText() ) );
 531
 532                         return;
 533                 }
 534
 535                 // Success, redirect to description page
 536                 $this->mUploadSuccessful = true;
 537                 Hooks::run( 'SpecialUploadComplete', [ &$this ] );
 538                 $this->getOutput()->redirect( $this->mLocalFile->getTitle()->getFullURL() );
 539         }
 540
 541         /**
 542          * Get the initial image page text based on a comment and optional file status information
 543          * @param string $comment
 544          * @param string $license
 545          * @param string $copyStatus
 546          * @param string $source
 547          * @param Config $config Configuration object to load data from
 548          * @return string
 549          */
 550         public static function getInitialPageText( $comment = '', $license = '',
 551                 $copyStatus = '', $source = '', Config $config = null
 552         ) {
 553                 if ( $config === null ) {
 554                         wfDebug( __METHOD__ . ' called without a Config instance passed to it' );
 555                         $config = ConfigFactory::getDefaultInstance()->makeConfig( 'main' );
 556                 }
 557
 558                 $msg = [];
 559                 $forceUIMsgAsContentMsg = (array)$config->get( 'ForceUIMsgAsContentMsg' );
 560                 /* These messages are transcluded into the actual text of the description page.
 561                  * Thus, forcing them as content messages makes the upload to produce an int: template
 562                  * instead of hardcoding it there in the uploader language.
 563                  */
 564                 foreach ( [ 'license-header', 'filedesc', 'filestatus', 'filesource' ] as $msgName ) {
 565                         if ( in_array( $msgName, $forceUIMsgAsContentMsg ) ) {
 566                                 $msg[$msgName] = "{{int:$msgName}}";
 567                         } else {
 568                                 $msg[$msgName] = wfMessage( $msgName )->inContentLanguage()->text();
 569                         }
 570                 }
 571
 572                 if ( $config->get( 'UseCopyrightUpload' ) ) {
 573                         $licensetxt = '';
 574                         if ( $license != '' ) {
 575                                 $licensetxt = '== ' . $msg['license-header'] . " ==\n" . '{{' . $license . '}}' . "\n";
 576                         }
 577                         $pageText = '== ' . $msg['filedesc'] . " ==\n" . $comment . "\n" .
 578                                 '== ' . $msg['filestatus'] . " ==\n" . $copyStatus . "\n" .
 579                                 "$licensetxt" .
 580                                 '== ' . $msg['filesource'] . " ==\n" . $source;
 581                 } else {
 582                         if ( $license != '' ) {
 583                                 $filedesc = $comment == '' ? '' : '== ' . $msg['filedesc'] . " ==\n" . $comment . "\n";
 584                                         $pageText = $filedesc .
 585                                         '== ' . $msg['license-header'] . " ==\n" . '{{' . $license . '}}' . "\n";
 586                         } else {
 587                                 $pageText = $comment;
 588                         }
 589                 }
 590
 591                 return $pageText;
 592         }
 593
 594         /**
 595          * See if we should check the 'watch this page' checkbox on the form
 596          * based on the user's preferences and whether we're being asked
 597          * to create a new file or update an existing one.
 598          *
 599          * In the case where 'watch edits' is off but 'watch creations' is on,
 600          * we'll leave the box unchecked.
 601          *
 602          * Note that the page target can be changed *on the form*, so our check
 603          * state can get out of sync.
 604          * @return bool|string
 605          */
 606         protected function getWatchCheck() {
 607                 if ( $this->getUser()->getOption( 'watchdefault' ) ) {
 608                         // Watch all edits!
 609                         return true;
 610                 }
 611
 612                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 613                 if ( $desiredTitleObj instanceof Title && $this->getUser()->isWatched( $desiredTitleObj ) ) {
 614                         // Already watched, don't change that
 615                         return true;
 616                 }
 617
 618                 $local = wfLocalFile( $this->mDesiredDestName );
 619                 if ( $local && $local->exists() ) {
 620                         // We're uploading a new version of an existing file.
 621                         // No creation, so don't watch it if we're not already.
 622                         return false;
 623                 } else {
 624                         // New page should get watched if that's our option.
 625                         return $this->getUser()->getOption( 'watchcreations' );
 626                 }
 627         }
 628
 629         /**
 630          * Provides output to the user for a result of UploadBase::verifyUpload
 631          *
 632          * @param array $details Result of UploadBase::verifyUpload
 633          * @throws MWException
 634          */
 635         protected function processVerificationError( $details ) {
 636                 switch ( $details['status'] ) {
 637
 638                         /** Statuses that only require name changing **/
 639                         case UploadBase::MIN_LENGTH_PARTNAME:
 640                                 $this->showRecoverableUploadError( $this->msg( 'minlength1' )->escaped() );
 641                                 break;
 642                         case UploadBase::ILLEGAL_FILENAME:
 643                                 $this->showRecoverableUploadError( $this->msg( 'illegalfilename',
 644                                         $details['filtered'] )->parse() );
 645                                 break;
 646                         case UploadBase::FILENAME_TOO_LONG:
 647                                 $this->showRecoverableUploadError( $this->msg( 'filename-toolong' )->escaped() );
 648                                 break;
 649                         case UploadBase::FILETYPE_MISSING:
 650                                 $this->showRecoverableUploadError( $this->msg( 'filetype-missing' )->parse() );
 651                                 break;
 652                         case UploadBase::WINDOWS_NONASCII_FILENAME:
 653                                 $this->showRecoverableUploadError( $this->msg( 'windows-nonascii-filename' )->parse() );
 654                                 break;
 655
 656                         /** Statuses that require reuploading **/
 657                         case UploadBase::EMPTY_FILE:
 658                                 $this->showUploadError( $this->msg( 'emptyfile' )->escaped() );
 659                                 break;
 660                         case UploadBase::FILE_TOO_LARGE:
 661                                 $this->showUploadError( $this->msg( 'largefileserver' )->escaped() );
 662                                 break;
 663                         case UploadBase::FILETYPE_BADTYPE:
 664                                 $msg = $this->msg( 'filetype-banned-type' );
 665                                 if ( isset( $details['blacklistedExt'] ) ) {
 666                                         $msg->params( $this->getLanguage()->commaList( $details['blacklistedExt'] ) );
 667                                 } else {
 668                                         $msg->params( $details['finalExt'] );
 669                                 }
 670                                 $extensions = array_unique( $this->getConfig()->get( 'FileExtensions' ) );
 671                                 $msg->params( $this->getLanguage()->commaList( $extensions ),
 672                                         count( $extensions ) );
 673
 674                                 // Add PLURAL support for the first parameter. This results
 675                                 // in a bit unlogical parameter sequence, but does not break
 676                                 // old translations
 677                                 if ( isset( $details['blacklistedExt'] ) ) {
 678                                         $msg->params( count( $details['blacklistedExt'] ) );
 679                                 } else {
 680                                         $msg->params( 1 );
 681                                 }
 682
 683                                 $this->showUploadError( $msg->parse() );
 684                                 break;
 685                         case UploadBase::VERIFICATION_ERROR:
 686                                 unset( $details['status'] );
 687                                 $code = array_shift( $details['details'] );
 688                                 $this->showUploadError( $this->msg( $code, $details['details'] )->parse() );
 689                                 break;
 690                         case UploadBase::HOOK_ABORTED:
 691                                 if ( is_array( $details['error'] ) ) { # allow hooks to return error details in an array
 692                                         $args = $details['error'];
 693                                         $error = array_shift( $args );
 694                                 } else {
 695                                         $error = $details['error'];
 696                                         $args = null;
 697                                 }
 698
 699                                 $this->showUploadError( $this->msg( $error, $args )->parse() );
 700                                 break;
 701                         default:
 702                                 throw new MWException( __METHOD__ . ": Unknown value `{$details['status']}`" );
 703                 }
 704         }
 705
 706         /**
 707          * Remove a temporarily kept file stashed by saveTempUploadedFile().
 708          *
 709          * @return bool Success
 710          */
 711         protected function unsaveUploadedFile() {
 712                 if ( !( $this->mUpload instanceof UploadFromStash ) ) {
 713                         return true;
 714                 }
 715                 $success = $this->mUpload->unsaveUploadedFile();
 716                 if ( !$success ) {
 717                         $this->getOutput()->showFileDeleteError( $this->mUpload->getTempPath() );
 718
 719                         return false;
 720                 } else {
 721                         return true;
 722                 }
 723         }
 724
 725         /*** Functions for formatting warnings ***/
 726
 727         /**
 728          * Formats a result of UploadBase::getExistsWarning as HTML
 729          * This check is static and can be done pre-upload via AJAX
 730          *
 731          * @param array $exists The result of UploadBase::getExistsWarning
 732          * @return string Empty string if there is no warning or an HTML fragment
 733          */
 734         public static function getExistsWarning( $exists ) {
 735                 if ( !$exists ) {
 736                         return '';
 737                 }
 738
 739                 $file = $exists['file'];
 740                 $filename = $file->getTitle()->getPrefixedText();
 741                 $warning = '';
 742
 743                 if ( $exists['warning'] == 'exists' ) {
 744                         // Exact match
 745                         $warning = wfMessage( 'fileexists', $filename )->parse();
 746                 } elseif ( $exists['warning'] == 'page-exists' ) {
 747                         // Page exists but file does not
 748                         $warning = wfMessage( 'filepageexists', $filename )->parse();
 749                 } elseif ( $exists['warning'] == 'exists-normalized' ) {
 750                         $warning = wfMessage( 'fileexists-extension', $filename,
 751                                 $exists['normalizedFile']->getTitle()->getPrefixedText() )->parse();
 752                 } elseif ( $exists['warning'] == 'thumb' ) {
 753                         // Swapped argument order compared with other messages for backwards compatibility
 754                         $warning = wfMessage( 'fileexists-thumbnail-yes',
 755                                 $exists['thumbFile']->getTitle()->getPrefixedText(), $filename )->parse();
 756                 } elseif ( $exists['warning'] == 'thumb-name' ) {
 757                         // Image w/o '180px-' does not exists, but we do not like these filenames
 758                         $name = $file->getName();
 759                         $badPart = substr( $name, 0, strpos( $name, '-' ) + 1 );
 760                         $warning = wfMessage( 'file-thumbnail-no', $badPart )->parse();
 761                 } elseif ( $exists['warning'] == 'bad-prefix' ) {
 762                         $warning = wfMessage( 'filename-bad-prefix', $exists['prefix'] )->parse();
 763                 }
 764
 765                 return $warning;
 766         }
 767
 768         /**
 769          * Construct a warning and a gallery from an array of duplicate files.
 770          * @param array $dupes
 771          * @return string
 772          */
 773         public function getDupeWarning( $dupes ) {
 774                 if ( !$dupes ) {
 775                         return '';
 776                 }
 777
 778                 $gallery = ImageGalleryBase::factory( false, $this->getContext() );
 779                 $gallery->setShowBytes( false );
 780                 foreach ( $dupes as $file ) {
 781                         $gallery->add( $file->getTitle() );
 782                 }
 783
 784                 return '<li>' .
 785                         $this->msg( 'file-exists-duplicate' )->numParams( count( $dupes ) )->parse() .
 786                         $gallery->toHTML() . "</li>\n";
 787         }
 788
 789         protected function getGroupName() {
 790                 return 'media';
 791         }
 792
 793         /**
 794          * Should we rotate images in the preview on Special:Upload.
 795          *
 796          * This controls js: mw.config.get( 'wgFileCanRotate' )
 797          *
 798          * @todo What about non-BitmapHandler handled files?
 799          */
 800         public static function rotationEnabled() {
 801                 $bitmapHandler = new BitmapHandler();
 802                 return $bitmapHandler->autoRotateEnabled();
 803         }
 804 }
 805
 806 /**
 807  * Sub class of HTMLForm that provides the form section of SpecialUpload
 808  */
 809 class UploadForm extends HTMLForm {
 810         protected $mWatch;
 811         protected $mForReUpload;
 812         protected $mSessionKey;
 813         protected $mHideIgnoreWarning;
 814         protected $mDestWarningAck;
 815         protected $mDestFile;
 816
 817         protected $mComment;
 818         protected $mTextTop;
 819         protected $mTextAfterSummary;
 820
 821         protected $mSourceIds;
 822
 823         protected $mMaxFileSize = [];
 824
 825         protected $mMaxUploadSize = [];
 826
 827         public function __construct( array $options = [], IContextSource $context = null ) {
 828                 if ( $context instanceof IContextSource ) {
 829                         $this->setContext( $context );
 830                 }
 831
 832                 $this->mWatch = !empty( $options['watch'] );
 833                 $this->mForReUpload = !empty( $options['forreupload'] );
 834                 $this->mSessionKey = isset( $options['sessionkey'] ) ? $options['sessionkey'] : '';
 835                 $this->mHideIgnoreWarning = !empty( $options['hideignorewarning'] );
 836                 $this->mDestWarningAck = !empty( $options['destwarningack'] );
 837                 $this->mDestFile = isset( $options['destfile'] ) ? $options['destfile'] : '';
 838
 839                 $this->mComment = isset( $options['description'] ) ?
 840                         $options['description'] : '';
 841
 842                 $this->mTextTop = isset( $options['texttop'] )
 843                         ? $options['texttop'] : '';
 844
 845                 $this->mTextAfterSummary = isset( $options['textaftersummary'] )
 846                         ? $options['textaftersummary'] : '';
 847
 848                 $sourceDescriptor = $this->getSourceSection();
 849                 $descriptor = $sourceDescriptor
 850                         + $this->getDescriptionSection()
 851                         + $this->getOptionsSection();
 852
 853                 Hooks::run( 'UploadFormInitDescriptor', [ &$descriptor ] );
 854                 parent::__construct( $descriptor, $context, 'upload' );
 855
 856                 # Add a link to edit MediaWik:Licenses
 857                 if ( $this->getUser()->isAllowed( 'editinterface' ) ) {
 858                         $this->getOutput()->addModuleStyles( 'mediawiki.special' );
 859                         $licensesLink = Linker::linkKnown(
 860                                 $this->msg( 'licenses' )->inContentLanguage()->getTitle(),
 861                                 $this->msg( 'licenses-edit' )->escaped(),
 862                                 [],
 863                                 [ 'action' => 'edit' ]
 864                         );
 865                         $editLicenses = '<p class="mw-upload-editlicenses">' . $licensesLink . '</p>';
 866                         $this->addFooterText( $editLicenses, 'description' );
 867                 }
 868
 869                 # Set some form properties
 870                 $this->setSubmitText( $this->msg( 'uploadbtn' )->text() );
 871                 $this->setSubmitName( 'wpUpload' );
 872                 # Used message keys: 'accesskey-upload', 'tooltip-upload'
 873                 $this->setSubmitTooltip( 'upload' );
 874                 $this->setId( 'mw-upload-form' );
 875
 876                 # Build a list of IDs for javascript insertion
 877                 $this->mSourceIds = [];
 878                 foreach ( $sourceDescriptor as $field ) {
 879                         if ( !empty( $field['id'] ) ) {
 880                                 $this->mSourceIds[] = $field['id'];
 881                         }
 882                 }
 883         }
 884
 885         /**
 886          * Get the descriptor of the fieldset that contains the file source
 887          * selection. The section is 'source'
 888          *
 889          * @return array Descriptor array
 890          */
 891         protected function getSourceSection() {
 892                 if ( $this->mSessionKey ) {
 893                         return [
 894                                 'SessionKey' => [
 895                                         'type' => 'hidden',
 896                                         'default' => $this->mSessionKey,
 897                                 ],
 898                                 'SourceType' => [
 899                                         'type' => 'hidden',
 900                                         'default' => 'Stash',
 901                                 ],
 902                         ];
 903                 }
 904
 905                 $canUploadByUrl = UploadFromUrl::isEnabled()
 906                         && ( UploadFromUrl::isAllowed( $this->getUser() ) === true )
 907                         && $this->getConfig()->get( 'CopyUploadsFromSpecialUpload' );
 908                 $radio = $canUploadByUrl;
 909                 $selectedSourceType = strtolower( $this->getRequest()->getText( 'wpSourceType', 'File' ) );
 910
 911                 $descriptor = [];
 912                 if ( $this->mTextTop ) {
 913                         $descriptor['UploadFormTextTop'] = [
 914                                 'type' => 'info',
 915                                 'section' => 'source',
 916                                 'default' => $this->mTextTop,
 917                                 'raw' => true,
 918                         ];
 919                 }
 920
 921                 $this->mMaxUploadSize['file'] = min(
 922                         UploadBase::getMaxUploadSize( 'file' ),
 923                         UploadBase::getMaxPhpUploadSize()
 924                 );
 925
 926                 $help = $this->msg( 'upload-maxfilesize',
 927                                 $this->getContext()->getLanguage()->formatSize( $this->mMaxUploadSize['file'] )
 928                         )->parse();
 929
 930                 // If the user can also upload by URL, there are 2 different file size limits.
 931                 // This extra message helps stress which limit corresponds to what.
 932                 if ( $canUploadByUrl ) {
 933                         $help .= $this->msg( 'word-separator' )->escaped();
 934                         $help .= $this->msg( 'upload_source_file' )->parse();
 935                 }
 936
 937                 $descriptor['UploadFile'] = [
 938                         'class' => 'UploadSourceField',
 939                         'section' => 'source',
 940                         'type' => 'file',
 941                         'id' => 'wpUploadFile',
 942                         'radio-id' => 'wpSourceTypeFile',
 943                         'label-message' => 'sourcefilename',
 944                         'upload-type' => 'File',
 945                         'radio' => &$radio,
 946                         'help' => $help,
 947                         'checked' => $selectedSourceType == 'file',
 948                 ];
 949
 950                 if ( $canUploadByUrl ) {
 951                         $this->mMaxUploadSize['url'] = UploadBase::getMaxUploadSize( 'url' );
 952                         $descriptor['UploadFileURL'] = [
 953                                 'class' => 'UploadSourceField',
 954                                 'section' => 'source',
 955                                 'id' => 'wpUploadFileURL',
 956                                 'radio-id' => 'wpSourceTypeurl',
 957                                 'label-message' => 'sourceurl',
 958                                 'upload-type' => 'url',
 959                                 'radio' => &$radio,
 960                                 'help' => $this->msg( 'upload-maxfilesize',
 961                                         $this->getContext()->getLanguage()->formatSize( $this->mMaxUploadSize['url'] )
 962                                 )->parse() .
 963                                         $this->msg( 'word-separator' )->escaped() .
 964                                         $this->msg( 'upload_source_url' )->parse(),
 965                                 'checked' => $selectedSourceType == 'url',
 966                         ];
 967                 }
 968                 Hooks::run( 'UploadFormSourceDescriptors', [ &$descriptor, &$radio, $selectedSourceType ] );
 969
 970                 $descriptor['Extensions'] = [
 971                         'type' => 'info',
 972                         'section' => 'source',
 973                         'default' => $this->getExtensionsMessage(),
 974                         'raw' => true,
 975                 ];
 976
 977                 return $descriptor;
 978         }
 979
 980         /**
 981          * Get the messages indicating which extensions are preferred and prohibitted.
 982          *
 983          * @return string HTML string containing the message
 984          */
 985         protected function getExtensionsMessage() {
 986                 # Print a list of allowed file extensions, if so configured.  We ignore
 987                 # MIME type here, it's incomprehensible to most people and too long.
 988                 $config = $this->getConfig();
 989
 990                 if ( $config->get( 'CheckFileExtensions' ) ) {
 991                         $fileExtensions = array_unique( $config->get( 'FileExtensions' ) );
 992                         if ( $config->get( 'StrictFileExtensions' ) ) {
 993                                 # Everything not permitted is banned
 994                                 $extensionsList =
 995                                         '<div id="mw-upload-permitted">' .
 996                                         $this->msg( 'upload-permitted' )
 997                                                 ->params( $this->getLanguage()->commaList( $fileExtensions ) )
 998                                                 ->numParams( count( $fileExtensions ) )
 999                                                 ->parseAsBlock() .
1000                                         "</div>\n";
1001                         } else {
1002                                 # We have to list both preferred and prohibited
1003                                 $fileBlacklist = array_unique( $config->get( 'FileBlacklist' ) );
1004                                 $extensionsList =
1005                                         '<div id="mw-upload-preferred">' .
1006                                                 $this->msg( 'upload-preferred' )
1007                                                         ->params( $this->getLanguage()->commaList( $fileExtensions ) )
1008                                                         ->numParams( count( $fileExtensions ) )
1009                                                         ->parseAsBlock() .
1010                                         "</div>\n" .
1011                                         '<div id="mw-upload-prohibited">' .
1012                                                 $this->msg( 'upload-prohibited' )
1013                                                         ->params( $this->getLanguage()->commaList( $fileBlacklist ) )
1014                                                         ->numParams( count( $fileBlacklist ) )
1015                                                         ->parseAsBlock() .
1016                                         "</div>\n";
1017                         }
1018                 } else {
1019                         # Everything is permitted.
1020                         $extensionsList = '';
1021                 }
1022
1023                 return $extensionsList;
1024         }
1025
1026         /**
1027          * Get the descriptor of the fieldset that contains the file description
1028          * input. The section is 'description'
1029          *
1030          * @return array Descriptor array
1031          */
1032         protected function getDescriptionSection() {
1033                 $config = $this->getConfig();
1034                 if ( $this->mSessionKey ) {
1035                         $stash = RepoGroup::singleton()->getLocalRepo()->getUploadStash( $this->getUser() );
1036                         try {
1037                                 $file = $stash->getFile( $this->mSessionKey );
1038                         } catch ( Exception $e ) {
1039                                 $file = null;
1040                         }
1041                         if ( $file ) {
1042                                 global $wgContLang;
1043
1044                                 $mto = $file->transform( [ 'width' => 120 ] );
1045                                 $this->addHeaderText(
1046                                         '<div class="thumb t' . $wgContLang->alignEnd() . '">' .
1047                                         Html::element( 'img', [
1048                                                 'src' => $mto->getUrl(),
1049                                                 'class' => 'thumbimage',
1050                                         ] ) . '</div>', 'description' );
1051                         }
1052                 }
1053
1054                 $descriptor = [
1055                         'DestFile' => [
1056                                 'type' => 'text',
1057                                 'section' => 'description',
1058                                 'id' => 'wpDestFile',
1059                                 'label-message' => 'destfilename',
1060                                 'size' => 60,
1061                                 'default' => $this->mDestFile,
1062                                 # @todo FIXME: Hack to work around poor handling of the 'default' option in HTMLForm
1063                                 'nodata' => strval( $this->mDestFile ) !== '',
1064                         ],
1065                         'UploadDescription' => [
1066                                 'type' => 'textarea',
1067                                 'section' => 'description',
1068                                 'id' => 'wpUploadDescription',
1069                                 'label-message' => $this->mForReUpload
1070                                         ? 'filereuploadsummary'
1071                                         : 'fileuploadsummary',
1072                                 'default' => $this->mComment,
1073                                 'cols' => $this->getUser()->getIntOption( 'cols' ),
1074                                 'rows' => 8,
1075                         ]
1076                 ];
1077                 if ( $this->mTextAfterSummary ) {
1078                         $descriptor['UploadFormTextAfterSummary'] = [
1079                                 'type' => 'info',
1080                                 'section' => 'description',
1081                                 'default' => $this->mTextAfterSummary,
1082                                 'raw' => true,
1083                         ];
1084                 }
1085
1086                 $descriptor += [
1087                         'EditTools' => [
1088                                 'type' => 'edittools',
1089                                 'section' => 'description',
1090                                 'message' => 'edittools-upload',
1091                         ]
1092                 ];
1093
1094                 if ( $this->mForReUpload ) {
1095                         $descriptor['DestFile']['readonly'] = true;
1096                 } else {
1097                         $descriptor['License'] = [
1098                                 'type' => 'select',
1099                                 'class' => 'Licenses',
1100                                 'section' => 'description',
1101                                 'id' => 'wpLicense',
1102                                 'label-message' => 'license',
1103                         ];
1104                 }
1105
1106                 if ( $config->get( 'UseCopyrightUpload' ) ) {
1107                         $descriptor['UploadCopyStatus'] = [
1108                                 'type' => 'text',
1109                                 'section' => 'description',
1110                                 'id' => 'wpUploadCopyStatus',
1111                                 'label-message' => 'filestatus',
1112                         ];
1113                         $descriptor['UploadSource'] = [
1114                                 'type' => 'text',
1115                                 'section' => 'description',
1116                                 'id' => 'wpUploadSource',
1117                                 'label-message' => 'filesource',
1118                         ];
1119                 }
1120
1121                 return $descriptor;
1122         }
1123
1124         /**
1125          * Get the descriptor of the fieldset that contains the upload options,
1126          * such as "watch this file". The section is 'options'
1127          *
1128          * @return array Descriptor array
1129          */
1130         protected function getOptionsSection() {
1131                 $user = $this->getUser();
1132                 if ( $user->isLoggedIn() ) {
1133                         $descriptor = [
1134                                 'Watchthis' => [
1135                                         'type' => 'check',
1136                                         'id' => 'wpWatchthis',
1137                                         'label-message' => 'watchthisupload',
1138                                         'section' => 'options',
1139                                         'default' => $this->mWatch,
1140                                 ]
1141                         ];
1142                 }
1143                 if ( !$this->mHideIgnoreWarning ) {
1144                         $descriptor['IgnoreWarning'] = [
1145                                 'type' => 'check',
1146                                 'id' => 'wpIgnoreWarning',
1147                                 'label-message' => 'ignorewarnings',
1148                                 'section' => 'options',
1149                         ];
1150                 }
1151
1152                 $descriptor['DestFileWarningAck'] = [
1153                         'type' => 'hidden',
1154                         'id' => 'wpDestFileWarningAck',
1155                         'default' => $this->mDestWarningAck ? '1' : '',
1156                 ];
1157
1158                 if ( $this->mForReUpload ) {
1159                         $descriptor['ForReUpload'] = [
1160                                 'type' => 'hidden',
1161                                 'id' => 'wpForReUpload',
1162                                 'default' => '1',
1163                         ];
1164                 }
1165
1166                 return $descriptor;
1167         }
1168
1169         /**
1170          * Add the upload JS and show the form.
1171          */
1172         public function show() {
1173                 $this->addUploadJS();
1174                 parent::show();
1175         }
1176
1177         /**
1178          * Add upload JS to the OutputPage
1179          */
1180         protected function addUploadJS() {
1181                 $config = $this->getConfig();
1182
1183                 $useAjaxDestCheck = $config->get( 'UseAjax' ) && $config->get( 'AjaxUploadDestCheck' );
1184                 $useAjaxLicensePreview = $config->get( 'UseAjax' ) &&
1185                         $config->get( 'AjaxLicensePreview' ) && $config->get( 'EnableAPI' );
1186                 $this->mMaxUploadSize['*'] = UploadBase::getMaxUploadSize();
1187
1188                 $scriptVars = [
1189                         'wgAjaxUploadDestCheck' => $useAjaxDestCheck,
1190                         'wgAjaxLicensePreview' => $useAjaxLicensePreview,
1191                         'wgUploadAutoFill' => !$this->mForReUpload &&
1192                                 // If we received mDestFile from the request, don't autofill
1193                                 // the wpDestFile textbox
1194                                 $this->mDestFile === '',
1195                         'wgUploadSourceIds' => $this->mSourceIds,
1196                         'wgCheckFileExtensions' => $config->get( 'CheckFileExtensions' ),
1197                         'wgStrictFileExtensions' => $config->get( 'StrictFileExtensions' ),
1198                         'wgFileExtensions' => array_values( array_unique( $config->get( 'FileExtensions' ) ) ),
1199                         'wgCapitalizeUploads' => MWNamespace::isCapitalized( NS_FILE ),
1200                         'wgMaxUploadSize' => $this->mMaxUploadSize,
1201                         'wgFileCanRotate' => SpecialUpload::rotationEnabled(),
1202                 ];
1203
1204                 $out = $this->getOutput();
1205                 $out->addJsConfigVars( $scriptVars );
1206
1207                 $out->addModules( [
1208                         'mediawiki.action.edit', // For <charinsert> support
1209                         'mediawiki.special.upload', // Extras for thumbnail and license preview.
1210                 ] );
1211         }
1212
1213         /**
1214          * Empty function; submission is handled elsewhere.
1215          *
1216          * @return bool False
1217          */
1218         function trySubmit() {
1219                 return false;
1220         }
1221 }
1222
1223 /**
1224  * A form field that contains a radio box in the label
1225  */
1226 class UploadSourceField extends HTMLTextField {
1227
1228         /**
1229          * @param array $cellAttributes
1230          * @return string
1231          */
1232         function getLabelHtml( $cellAttributes = [] ) {
1233                 $id = $this->mParams['id'];
1234                 $label = Html::rawElement( 'label', [ 'for' => $id ], $this->mLabel );
1235
1236                 if ( !empty( $this->mParams['radio'] ) ) {
1237                         if ( isset( $this->mParams['radio-id'] ) ) {
1238                                 $radioId = $this->mParams['radio-id'];
1239                         } else {
1240                                 // Old way. For the benefit of extensions that do not define
1241                                 // the 'radio-id' key.
1242                                 $radioId = 'wpSourceType' . $this->mParams['upload-type'];
1243                         }
1244
1245                         $attribs = [
1246                                 'name' => 'wpSourceType',
1247                                 'type' => 'radio',
1248                                 'id' => $radioId,
1249                                 'value' => $this->mParams['upload-type'],
1250                         ];
1251
1252                         if ( !empty( $this->mParams['checked'] ) ) {
1253                                 $attribs['checked'] = 'checked';
1254                         }
1255
1256                         $label .= Html::element( 'input', $attribs );
1257                 }
1258
1259                 return Html::rawElement( 'td', [ 'class' => 'mw-label' ] + $cellAttributes, $label );
1260         }
1261
1262         /**
1263          * @return int
1264          */
1265         function getSize() {
1266                 return isset( $this->mParams['size'] )
1267                         ? $this->mParams['size']
1268                         : 60;
1269         }
1270 }