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                 // Global blocks
 184                 if ( $user->isBlockedGlobally() ) {
 185                         throw new UserBlockedError( $user->getGlobalBlock() );
 186                 }
 187
 188                 # Check whether we actually want to allow changing stuff
 189                 $this->checkReadOnly();
 190
 191                 $this->loadRequest();
 192
 193                 # Unsave the temporary file in case this was a cancelled upload
 194                 if ( $this->mCancelUpload ) {
 195                         if ( !$this->unsaveUploadedFile() ) {
 196                                 # Something went wrong, so unsaveUploadedFile showed a warning
 197                                 return;
 198                         }
 199                 }
 200
 201                 # Process upload or show a form
 202                 if (
 203                         $this->mTokenOk && !$this->mCancelUpload &&
 204                         ( $this->mUpload && $this->mUploadClicked )
 205                 ) {
 206                         $this->processUpload();
 207                 } else {
 208                         # Backwards compatibility hook
 209                         if ( !Hooks::run( 'UploadForm:initial', [ &$this ] ) ) {
 210                                 wfDebug( "Hook 'UploadForm:initial' broke output of the upload form\n" );
 211
 212                                 return;
 213                         }
 214                         $this->showUploadForm( $this->getUploadForm() );
 215                 }
 216
 217                 # Cleanup
 218                 if ( $this->mUpload ) {
 219                         $this->mUpload->cleanupTempFile();
 220                 }
 221         }
 222
 223         /**
 224          * Show the main upload form
 225          *
 226          * @param HTMLForm|string $form An HTMLForm instance or HTML string to show
 227          */
 228         protected function showUploadForm( $form ) {
 229                 # Add links if file was previously deleted
 230                 if ( $this->mDesiredDestName ) {
 231                         $this->showViewDeletedLinks();
 232                 }
 233
 234                 if ( $form instanceof HTMLForm ) {
 235                         $form->show();
 236                 } else {
 237                         $this->getOutput()->addHTML( $form );
 238                 }
 239         }
 240
 241         /**
 242          * Get an UploadForm instance with title and text properly set.
 243          *
 244          * @param string $message HTML string to add to the form
 245          * @param string $sessionKey Session key in case this is a stashed upload
 246          * @param bool $hideIgnoreWarning Whether to hide "ignore warning" check box
 247          * @return UploadForm
 248          */
 249         protected function getUploadForm( $message = '', $sessionKey = '', $hideIgnoreWarning = false ) {
 250                 # Initialize form
 251                 $context = new DerivativeContext( $this->getContext() );
 252                 $context->setTitle( $this->getPageTitle() ); // Remove subpage
 253                 $form = new UploadForm( [
 254                         'watch' => $this->getWatchCheck(),
 255                         'forreupload' => $this->mForReUpload,
 256                         'sessionkey' => $sessionKey,
 257                         'hideignorewarning' => $hideIgnoreWarning,
 258                         'destwarningack' => (bool)$this->mDestWarningAck,
 259
 260                         'description' => $this->mComment,
 261                         'texttop' => $this->uploadFormTextTop,
 262                         'textaftersummary' => $this->uploadFormTextAfterSummary,
 263                         'destfile' => $this->mDesiredDestName,
 264                 ], $context );
 265
 266                 # Check the token, but only if necessary
 267                 if (
 268                         !$this->mTokenOk && !$this->mCancelUpload &&
 269                         ( $this->mUpload && $this->mUploadClicked )
 270                 ) {
 271                         $form->addPreText( $this->msg( 'session_fail_preview' )->parse() );
 272                 }
 273
 274                 # Give a notice if the user is uploading a file that has been deleted or moved
 275                 # Note that this is independent from the message 'filewasdeleted'
 276                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 277                 $delNotice = ''; // empty by default
 278                 if ( $desiredTitleObj instanceof Title && !$desiredTitleObj->exists() ) {
 279                         LogEventsList::showLogExtract( $delNotice, [ 'delete', 'move' ],
 280                                 $desiredTitleObj,
 281                                 '', [ 'lim' => 10,
 282                                         'conds' => [ "log_action != 'revision'" ],
 283                                         'showIfEmpty' => false,
 284                                         'msgKey' => [ 'upload-recreate-warning' ] ]
 285                         );
 286                 }
 287                 $form->addPreText( $delNotice );
 288
 289                 # Add text to form
 290                 $form->addPreText( '<div id="uploadtext">' .
 291                         $this->msg( 'uploadtext', [ $this->mDesiredDestName ] )->parseAsBlock() .
 292                         '</div>' );
 293                 # Add upload error message
 294                 $form->addPreText( $message );
 295
 296                 # Add footer to form
 297                 $uploadFooter = $this->msg( 'uploadfooter' );
 298                 if ( !$uploadFooter->isDisabled() ) {
 299                         $form->addPostText( '<div id="mw-upload-footer-message">'
 300                                 . $uploadFooter->parseAsBlock() . "</div>\n" );
 301                 }
 302
 303                 return $form;
 304         }
 305
 306         /**
 307          * Shows the "view X deleted revivions link""
 308          */
 309         protected function showViewDeletedLinks() {
 310                 $title = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 311                 $user = $this->getUser();
 312                 // Show a subtitle link to deleted revisions (to sysops et al only)
 313                 if ( $title instanceof Title ) {
 314                         $count = $title->isDeleted();
 315                         if ( $count > 0 && $user->isAllowed( 'deletedhistory' ) ) {
 316                                 $restorelink = Linker::linkKnown(
 317                                         SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
 318                                         $this->msg( 'restorelink' )->numParams( $count )->escaped()
 319                                 );
 320                                 $link = $this->msg( $user->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted' )
 321                                         ->rawParams( $restorelink )->parseAsBlock();
 322                                 $this->getOutput()->addHTML( "<div id=\"contentSub2\">{$link}</div>" );
 323                         }
 324                 }
 325         }
 326
 327         /**
 328          * Stashes the upload and shows the main upload form.
 329          *
 330          * Note: only errors that can be handled by changing the name or
 331          * description should be redirected here. It should be assumed that the
 332          * file itself is sane and has passed UploadBase::verifyFile. This
 333          * essentially means that UploadBase::VERIFICATION_ERROR and
 334          * UploadBase::EMPTY_FILE should not be passed here.
 335          *
 336          * @param string $message HTML message to be passed to mainUploadForm
 337          */
 338         protected function showRecoverableUploadError( $message ) {
 339                 $sessionKey = $this->mUpload->stashSession();
 340                 $message = '<h2>' . $this->msg( 'uploaderror' )->escaped() . "</h2>\n" .
 341                         '<div class="error">' . $message . "</div>\n";
 342
 343                 $form = $this->getUploadForm( $message, $sessionKey );
 344                 $form->setSubmitText( $this->msg( 'upload-tryagain' )->escaped() );
 345                 $this->showUploadForm( $form );
 346         }
 347
 348         /**
 349          * Stashes the upload, shows the main form, but adds a "continue anyway button".
 350          * Also checks whether there are actually warnings to display.
 351          *
 352          * @param array $warnings
 353          * @return bool True if warnings were displayed, false if there are no
 354          *   warnings and it should continue processing
 355          */
 356         protected function showUploadWarning( $warnings ) {
 357                 # If there are no warnings, or warnings we can ignore, return early.
 358                 # mDestWarningAck is set when some javascript has shown the warning
 359                 # to the user. mForReUpload is set when the user clicks the "upload a
 360                 # new version" link.
 361                 if ( !$warnings || ( count( $warnings ) == 1
 362                         && isset( $warnings['exists'] )
 363                         && ( $this->mDestWarningAck || $this->mForReUpload ) )
 364                 ) {
 365                         return false;
 366                 }
 367
 368                 $sessionKey = $this->mUpload->stashSession();
 369
 370                 $warningHtml = '<h2>' . $this->msg( 'uploadwarning' )->escaped() . "</h2>\n"
 371                         . '<div class="warningbox"><ul>';
 372                 foreach ( $warnings as $warning => $args ) {
 373                         if ( $warning == 'badfilename' ) {
 374                                 $this->mDesiredDestName = Title::makeTitle( NS_FILE, $args )->getText();
 375                         }
 376                         if ( $warning == 'exists' ) {
 377                                 $msg = "\t<li>" . self::getExistsWarning( $args ) . "</li>\n";
 378                         } elseif ( $warning == 'was-deleted' ) {
 379                                 # If the file existed before and was deleted, warn the user of this
 380                                 $ltitle = SpecialPage::getTitleFor( 'Log' );
 381                                 $llink = Linker::linkKnown(
 382                                         $ltitle,
 383                                         wfMessage( 'deletionlog' )->escaped(),
 384                                         [],
 385                                         [
 386                                                 'type' => 'delete',
 387                                                 'page' => Title::makeTitle( NS_FILE, $args )->getPrefixedText(),
 388                                         ]
 389                                 );
 390                                 $msg = "\t<li>" . wfMessage( 'filewasdeleted' )->rawParams( $llink )->parse() . "</li>\n";
 391                         } elseif ( $warning == 'duplicate' ) {
 392                                 $msg = $this->getDupeWarning( $args );
 393                         } elseif ( $warning == 'duplicate-archive' ) {
 394                                 if ( $args === '' ) {
 395                                         $msg = "\t<li>" . $this->msg( 'file-deleted-duplicate-notitle' )->parse()
 396                                                 . "</li>\n";
 397                                 } else {
 398                                         $msg = "\t<li>" . $this->msg( 'file-deleted-duplicate',
 399                                                         Title::makeTitle( NS_FILE, $args )->getPrefixedText() )->parse()
 400                                                 . "</li>\n";
 401                                 }
 402                         } else {
 403                                 if ( $args === true ) {
 404                                         $args = [];
 405                                 } elseif ( !is_array( $args ) ) {
 406                                         $args = [ $args ];
 407                                 }
 408                                 $msg = "\t<li>" . $this->msg( $warning, $args )->parse() . "</li>\n";
 409                         }
 410                         $warningHtml .= $msg;
 411                 }
 412                 $warningHtml .= "</ul></div>\n";
 413                 $warningHtml .= $this->msg( 'uploadwarning-text' )->parseAsBlock();
 414
 415                 $form = $this->getUploadForm( $warningHtml, $sessionKey, /* $hideIgnoreWarning */ true );
 416                 $form->setSubmitText( $this->msg( 'upload-tryagain' )->text() );
 417                 $form->addButton( [
 418                         'name' => 'wpUploadIgnoreWarning',
 419                         'value' => $this->msg( 'ignorewarning' )->text()
 420                 ] );
 421                 $form->addButton( [
 422                         'name' => 'wpCancelUpload',
 423                         'value' => $this->msg( 'reuploaddesc' )->text()
 424                 ] );
 425
 426                 $this->showUploadForm( $form );
 427
 428                 # Indicate that we showed a form
 429                 return true;
 430         }
 431
 432         /**
 433          * Show the upload form with error message, but do not stash the file.
 434          *
 435          * @param string $message HTML string
 436          */
 437         protected function showUploadError( $message ) {
 438                 $message = '<h2>' . $this->msg( 'uploadwarning' )->escaped() . "</h2>\n" .
 439                         '<div class="error">' . $message . "</div>\n";
 440                 $this->showUploadForm( $this->getUploadForm( $message ) );
 441         }
 442
 443         /**
 444          * Do the upload.
 445          * Checks are made in SpecialUpload::execute()
 446          */
 447         protected function processUpload() {
 448                 // Fetch the file if required
 449                 $status = $this->mUpload->fetchFile();
 450                 if ( !$status->isOK() ) {
 451                         $this->showUploadError( $this->getOutput()->parse( $status->getWikiText() ) );
 452
 453                         return;
 454                 }
 455
 456                 if ( !Hooks::run( 'UploadForm:BeforeProcessing', [ &$this ] ) ) {
 457                         wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file.\n" );
 458                         // This code path is deprecated. If you want to break upload processing
 459                         // do so by hooking into the appropriate hooks in UploadBase::verifyUpload
 460                         // and UploadBase::verifyFile.
 461                         // If you use this hook to break uploading, the user will be returned
 462                         // an empty form with no error message whatsoever.
 463                         return;
 464                 }
 465
 466                 // Upload verification
 467                 $details = $this->mUpload->verifyUpload();
 468                 if ( $details['status'] != UploadBase::OK ) {
 469                         $this->processVerificationError( $details );
 470
 471                         return;
 472                 }
 473
 474                 // Verify permissions for this title
 475                 $permErrors = $this->mUpload->verifyTitlePermissions( $this->getUser() );
 476                 if ( $permErrors !== true ) {
 477                         $code = array_shift( $permErrors[0] );
 478                         $this->showRecoverableUploadError( $this->msg( $code, $permErrors[0] )->parse() );
 479
 480                         return;
 481                 }
 482
 483                 $this->mLocalFile = $this->mUpload->getLocalFile();
 484
 485                 // Check warnings if necessary
 486                 if ( !$this->mIgnoreWarning ) {
 487                         $warnings = $this->mUpload->checkWarnings();
 488                         if ( $this->showUploadWarning( $warnings ) ) {
 489                                 return;
 490                         }
 491                 }
 492
 493                 // This is as late as we can throttle, after expected issues have been handled
 494                 if ( UploadBase::isThrottled( $this->getUser() ) ) {
 495                         $this->showRecoverableUploadError(
 496                                 $this->msg( 'actionthrottledtext' )->escaped()
 497                         );
 498                         return;
 499                 }
 500
 501                 // Get the page text if this is not a reupload
 502                 if ( !$this->mForReUpload ) {
 503                         $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
 504                                 $this->mCopyrightStatus, $this->mCopyrightSource, $this->getConfig() );
 505                 } else {
 506                         $pageText = false;
 507                 }
 508
 509                 $changeTags = $this->getRequest()->getVal( 'wpChangeTags' );
 510                 if ( is_null( $changeTags ) || $changeTags === '' ) {
 511                         $changeTags = [];
 512                 } else {
 513                         $changeTags = array_filter( array_map( 'trim', explode( ',', $changeTags ) ) );
 514                 }
 515
 516                 if ( $changeTags ) {
 517                         $changeTagsStatus = ChangeTags::canAddTagsAccompanyingChange(
 518                                 $changeTags, $this->getUser() );
 519                         if ( !$changeTagsStatus->isOK() ) {
 520                                 $this->showUploadError( $this->getOutput()->parse( $changeTagsStatus->getWikiText() ) );
 521
 522                                 return;
 523                         }
 524                 }
 525
 526                 $status = $this->mUpload->performUpload(
 527                         $this->mComment,
 528                         $pageText,
 529                         $this->mWatchthis,
 530                         $this->getUser(),
 531                         $changeTags
 532                 );
 533
 534                 if ( !$status->isGood() ) {
 535                         $this->showUploadError( $this->getOutput()->parse( $status->getWikiText() ) );
 536
 537                         return;
 538                 }
 539
 540                 // Success, redirect to description page
 541                 $this->mUploadSuccessful = true;
 542                 Hooks::run( 'SpecialUploadComplete', [ &$this ] );
 543                 $this->getOutput()->redirect( $this->mLocalFile->getTitle()->getFullURL() );
 544         }
 545
 546         /**
 547          * Get the initial image page text based on a comment and optional file status information
 548          * @param string $comment
 549          * @param string $license
 550          * @param string $copyStatus
 551          * @param string $source
 552          * @param Config $config Configuration object to load data from
 553          * @return string
 554          */
 555         public static function getInitialPageText( $comment = '', $license = '',
 556                 $copyStatus = '', $source = '', Config $config = null
 557         ) {
 558                 if ( $config === null ) {
 559                         wfDebug( __METHOD__ . ' called without a Config instance passed to it' );
 560                         $config = ConfigFactory::getDefaultInstance()->makeConfig( 'main' );
 561                 }
 562
 563                 $msg = [];
 564                 $forceUIMsgAsContentMsg = (array)$config->get( 'ForceUIMsgAsContentMsg' );
 565                 /* These messages are transcluded into the actual text of the description page.
 566                  * Thus, forcing them as content messages makes the upload to produce an int: template
 567                  * instead of hardcoding it there in the uploader language.
 568                  */
 569                 foreach ( [ 'license-header', 'filedesc', 'filestatus', 'filesource' ] as $msgName ) {
 570                         if ( in_array( $msgName, $forceUIMsgAsContentMsg ) ) {
 571                                 $msg[$msgName] = "{{int:$msgName}}";
 572                         } else {
 573                                 $msg[$msgName] = wfMessage( $msgName )->inContentLanguage()->text();
 574                         }
 575                 }
 576
 577                 if ( $config->get( 'UseCopyrightUpload' ) ) {
 578                         $licensetxt = '';
 579                         if ( $license != '' ) {
 580                                 $licensetxt = '== ' . $msg['license-header'] . " ==\n" . '{{' . $license . '}}' . "\n";
 581                         }
 582                         $pageText = '== ' . $msg['filedesc'] . " ==\n" . $comment . "\n" .
 583                                 '== ' . $msg['filestatus'] . " ==\n" . $copyStatus . "\n" .
 584                                 "$licensetxt" .
 585                                 '== ' . $msg['filesource'] . " ==\n" . $source;
 586                 } else {
 587                         if ( $license != '' ) {
 588                                 $filedesc = $comment == '' ? '' : '== ' . $msg['filedesc'] . " ==\n" . $comment . "\n";
 589                                         $pageText = $filedesc .
 590                                         '== ' . $msg['license-header'] . " ==\n" . '{{' . $license . '}}' . "\n";
 591                         } else {
 592                                 $pageText = $comment;
 593                         }
 594                 }
 595
 596                 return $pageText;
 597         }
 598
 599         /**
 600          * See if we should check the 'watch this page' checkbox on the form
 601          * based on the user's preferences and whether we're being asked
 602          * to create a new file or update an existing one.
 603          *
 604          * In the case where 'watch edits' is off but 'watch creations' is on,
 605          * we'll leave the box unchecked.
 606          *
 607          * Note that the page target can be changed *on the form*, so our check
 608          * state can get out of sync.
 609          * @return bool|string
 610          */
 611         protected function getWatchCheck() {
 612                 if ( $this->getUser()->getOption( 'watchdefault' ) ) {
 613                         // Watch all edits!
 614                         return true;
 615                 }
 616
 617                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 618                 if ( $desiredTitleObj instanceof Title && $this->getUser()->isWatched( $desiredTitleObj ) ) {
 619                         // Already watched, don't change that
 620                         return true;
 621                 }
 622
 623                 $local = wfLocalFile( $this->mDesiredDestName );
 624                 if ( $local && $local->exists() ) {
 625                         // We're uploading a new version of an existing file.
 626                         // No creation, so don't watch it if we're not already.
 627                         return false;
 628                 } else {
 629                         // New page should get watched if that's our option.
 630                         return $this->getUser()->getOption( 'watchcreations' ) ||
 631                                 $this->getUser()->getOption( 'watchuploads' );
 632                 }
 633         }
 634
 635         /**
 636          * Provides output to the user for a result of UploadBase::verifyUpload
 637          *
 638          * @param array $details Result of UploadBase::verifyUpload
 639          * @throws MWException
 640          */
 641         protected function processVerificationError( $details ) {
 642                 switch ( $details['status'] ) {
 643
 644                         /** Statuses that only require name changing **/
 645                         case UploadBase::MIN_LENGTH_PARTNAME:
 646                                 $this->showRecoverableUploadError( $this->msg( 'minlength1' )->escaped() );
 647                                 break;
 648                         case UploadBase::ILLEGAL_FILENAME:
 649                                 $this->showRecoverableUploadError( $this->msg( 'illegalfilename',
 650                                         $details['filtered'] )->parse() );
 651                                 break;
 652                         case UploadBase::FILENAME_TOO_LONG:
 653                                 $this->showRecoverableUploadError( $this->msg( 'filename-toolong' )->escaped() );
 654                                 break;
 655                         case UploadBase::FILETYPE_MISSING:
 656                                 $this->showRecoverableUploadError( $this->msg( 'filetype-missing' )->parse() );
 657                                 break;
 658                         case UploadBase::WINDOWS_NONASCII_FILENAME:
 659                                 $this->showRecoverableUploadError( $this->msg( 'windows-nonascii-filename' )->parse() );
 660                                 break;
 661
 662                         /** Statuses that require reuploading **/
 663                         case UploadBase::EMPTY_FILE:
 664                                 $this->showUploadError( $this->msg( 'emptyfile' )->escaped() );
 665                                 break;
 666                         case UploadBase::FILE_TOO_LARGE:
 667                                 $this->showUploadError( $this->msg( 'largefileserver' )->escaped() );
 668                                 break;
 669                         case UploadBase::FILETYPE_BADTYPE:
 670                                 $msg = $this->msg( 'filetype-banned-type' );
 671                                 if ( isset( $details['blacklistedExt'] ) ) {
 672                                         $msg->params( $this->getLanguage()->commaList( $details['blacklistedExt'] ) );
 673                                 } else {
 674                                         $msg->params( $details['finalExt'] );
 675                                 }
 676                                 $extensions = array_unique( $this->getConfig()->get( 'FileExtensions' ) );
 677                                 $msg->params( $this->getLanguage()->commaList( $extensions ),
 678                                         count( $extensions ) );
 679
 680                                 // Add PLURAL support for the first parameter. This results
 681                                 // in a bit unlogical parameter sequence, but does not break
 682                                 // old translations
 683                                 if ( isset( $details['blacklistedExt'] ) ) {
 684                                         $msg->params( count( $details['blacklistedExt'] ) );
 685                                 } else {
 686                                         $msg->params( 1 );
 687                                 }
 688
 689                                 $this->showUploadError( $msg->parse() );
 690                                 break;
 691                         case UploadBase::VERIFICATION_ERROR:
 692                                 unset( $details['status'] );
 693                                 $code = array_shift( $details['details'] );
 694                                 $this->showUploadError( $this->msg( $code, $details['details'] )->parse() );
 695                                 break;
 696                         case UploadBase::HOOK_ABORTED:
 697                                 if ( is_array( $details['error'] ) ) { # allow hooks to return error details in an array
 698                                         $args = $details['error'];
 699                                         $error = array_shift( $args );
 700                                 } else {
 701                                         $error = $details['error'];
 702                                         $args = null;
 703                                 }
 704
 705                                 $this->showUploadError( $this->msg( $error, $args )->parse() );
 706                                 break;
 707                         default:
 708                                 throw new MWException( __METHOD__ . ": Unknown value `{$details['status']}`" );
 709                 }
 710         }
 711
 712         /**
 713          * Remove a temporarily kept file stashed by saveTempUploadedFile().
 714          *
 715          * @return bool Success
 716          */
 717         protected function unsaveUploadedFile() {
 718                 if ( !( $this->mUpload instanceof UploadFromStash ) ) {
 719                         return true;
 720                 }
 721                 $success = $this->mUpload->unsaveUploadedFile();
 722                 if ( !$success ) {
 723                         $this->getOutput()->showFileDeleteError( $this->mUpload->getTempPath() );
 724
 725                         return false;
 726                 } else {
 727                         return true;
 728                 }
 729         }
 730
 731         /*** Functions for formatting warnings ***/
 732
 733         /**
 734          * Formats a result of UploadBase::getExistsWarning as HTML
 735          * This check is static and can be done pre-upload via AJAX
 736          *
 737          * @param array $exists The result of UploadBase::getExistsWarning
 738          * @return string Empty string if there is no warning or an HTML fragment
 739          */
 740         public static function getExistsWarning( $exists ) {
 741                 if ( !$exists ) {
 742                         return '';
 743                 }
 744
 745                 $file = $exists['file'];
 746                 $filename = $file->getTitle()->getPrefixedText();
 747                 $warning = '';
 748
 749                 if ( $exists['warning'] == 'exists' ) {
 750                         // Exact match
 751                         $warning = wfMessage( 'fileexists', $filename )->parse();
 752                 } elseif ( $exists['warning'] == 'page-exists' ) {
 753                         // Page exists but file does not
 754                         $warning = wfMessage( 'filepageexists', $filename )->parse();
 755                 } elseif ( $exists['warning'] == 'exists-normalized' ) {
 756                         $warning = wfMessage( 'fileexists-extension', $filename,
 757                                 $exists['normalizedFile']->getTitle()->getPrefixedText() )->parse();
 758                 } elseif ( $exists['warning'] == 'thumb' ) {
 759                         // Swapped argument order compared with other messages for backwards compatibility
 760                         $warning = wfMessage( 'fileexists-thumbnail-yes',
 761                                 $exists['thumbFile']->getTitle()->getPrefixedText(), $filename )->parse();
 762                 } elseif ( $exists['warning'] == 'thumb-name' ) {
 763                         // Image w/o '180px-' does not exists, but we do not like these filenames
 764                         $name = $file->getName();
 765                         $badPart = substr( $name, 0, strpos( $name, '-' ) + 1 );
 766                         $warning = wfMessage( 'file-thumbnail-no', $badPart )->parse();
 767                 } elseif ( $exists['warning'] == 'bad-prefix' ) {
 768                         $warning = wfMessage( 'filename-bad-prefix', $exists['prefix'] )->parse();
 769                 }
 770
 771                 return $warning;
 772         }
 773
 774         /**
 775          * Construct a warning and a gallery from an array of duplicate files.
 776          * @param array $dupes
 777          * @return string
 778          */
 779         public function getDupeWarning( $dupes ) {
 780                 if ( !$dupes ) {
 781                         return '';
 782                 }
 783
 784                 $gallery = ImageGalleryBase::factory( false, $this->getContext() );
 785                 $gallery->setShowBytes( false );
 786                 foreach ( $dupes as $file ) {
 787                         $gallery->add( $file->getTitle() );
 788                 }
 789
 790                 return '<li>' .
 791                         $this->msg( 'file-exists-duplicate' )->numParams( count( $dupes ) )->parse() .
 792                         $gallery->toHTML() . "</li>\n";
 793         }
 794
 795         protected function getGroupName() {
 796                 return 'media';
 797         }
 798
 799         /**
 800          * Should we rotate images in the preview on Special:Upload.
 801          *
 802          * This controls js: mw.config.get( 'wgFileCanRotate' )
 803          *
 804          * @todo What about non-BitmapHandler handled files?
 805          */
 806         public static function rotationEnabled() {
 807                 $bitmapHandler = new BitmapHandler();
 808                 return $bitmapHandler->autoRotateEnabled();
 809         }
 810 }
 811
 812 /**
 813  * Sub class of HTMLForm that provides the form section of SpecialUpload
 814  */
 815 class UploadForm extends HTMLForm {
 816         protected $mWatch;
 817         protected $mForReUpload;
 818         protected $mSessionKey;
 819         protected $mHideIgnoreWarning;
 820         protected $mDestWarningAck;
 821         protected $mDestFile;
 822
 823         protected $mComment;
 824         protected $mTextTop;
 825         protected $mTextAfterSummary;
 826
 827         protected $mSourceIds;
 828
 829         protected $mMaxFileSize = [];
 830
 831         protected $mMaxUploadSize = [];
 832
 833         public function __construct( array $options = [], IContextSource $context = null ) {
 834                 if ( $context instanceof IContextSource ) {
 835                         $this->setContext( $context );
 836                 }
 837
 838                 $this->mWatch = !empty( $options['watch'] );
 839                 $this->mForReUpload = !empty( $options['forreupload'] );
 840                 $this->mSessionKey = isset( $options['sessionkey'] ) ? $options['sessionkey'] : '';
 841                 $this->mHideIgnoreWarning = !empty( $options['hideignorewarning'] );
 842                 $this->mDestWarningAck = !empty( $options['destwarningack'] );
 843                 $this->mDestFile = isset( $options['destfile'] ) ? $options['destfile'] : '';
 844
 845                 $this->mComment = isset( $options['description'] ) ?
 846                         $options['description'] : '';
 847
 848                 $this->mTextTop = isset( $options['texttop'] )
 849                         ? $options['texttop'] : '';
 850
 851                 $this->mTextAfterSummary = isset( $options['textaftersummary'] )
 852                         ? $options['textaftersummary'] : '';
 853
 854                 $sourceDescriptor = $this->getSourceSection();
 855                 $descriptor = $sourceDescriptor
 856                         + $this->getDescriptionSection()
 857                         + $this->getOptionsSection();
 858
 859                 Hooks::run( 'UploadFormInitDescriptor', [ &$descriptor ] );
 860                 parent::__construct( $descriptor, $context, 'upload' );
 861
 862                 # Add a link to edit MediaWik:Licenses
 863                 if ( $this->getUser()->isAllowed( 'editinterface' ) ) {
 864                         $this->getOutput()->addModuleStyles( 'mediawiki.special' );
 865                         $licensesLink = Linker::linkKnown(
 866                                 $this->msg( 'licenses' )->inContentLanguage()->getTitle(),
 867                                 $this->msg( 'licenses-edit' )->escaped(),
 868                                 [],
 869                                 [ 'action' => 'edit' ]
 870                         );
 871                         $editLicenses = '<p class="mw-upload-editlicenses">' . $licensesLink . '</p>';
 872                         $this->addFooterText( $editLicenses, 'description' );
 873                 }
 874
 875                 # Set some form properties
 876                 $this->setSubmitText( $this->msg( 'uploadbtn' )->text() );
 877                 $this->setSubmitName( 'wpUpload' );
 878                 # Used message keys: 'accesskey-upload', 'tooltip-upload'
 879                 $this->setSubmitTooltip( 'upload' );
 880                 $this->setId( 'mw-upload-form' );
 881
 882                 # Build a list of IDs for javascript insertion
 883                 $this->mSourceIds = [];
 884                 foreach ( $sourceDescriptor as $field ) {
 885                         if ( !empty( $field['id'] ) ) {
 886                                 $this->mSourceIds[] = $field['id'];
 887                         }
 888                 }
 889         }
 890
 891         /**
 892          * Get the descriptor of the fieldset that contains the file source
 893          * selection. The section is 'source'
 894          *
 895          * @return array Descriptor array
 896          */
 897         protected function getSourceSection() {
 898                 if ( $this->mSessionKey ) {
 899                         return [
 900                                 'SessionKey' => [
 901                                         'type' => 'hidden',
 902                                         'default' => $this->mSessionKey,
 903                                 ],
 904                                 'SourceType' => [
 905                                         'type' => 'hidden',
 906                                         'default' => 'Stash',
 907                                 ],
 908                         ];
 909                 }
 910
 911                 $canUploadByUrl = UploadFromUrl::isEnabled()
 912                         && ( UploadFromUrl::isAllowed( $this->getUser() ) === true )
 913                         && $this->getConfig()->get( 'CopyUploadsFromSpecialUpload' );
 914                 $radio = $canUploadByUrl;
 915                 $selectedSourceType = strtolower( $this->getRequest()->getText( 'wpSourceType', 'File' ) );
 916
 917                 $descriptor = [];
 918                 if ( $this->mTextTop ) {
 919                         $descriptor['UploadFormTextTop'] = [
 920                                 'type' => 'info',
 921                                 'section' => 'source',
 922                                 'default' => $this->mTextTop,
 923                                 'raw' => true,
 924                         ];
 925                 }
 926
 927                 $this->mMaxUploadSize['file'] = min(
 928                         UploadBase::getMaxUploadSize( 'file' ),
 929                         UploadBase::getMaxPhpUploadSize()
 930                 );
 931
 932                 $help = $this->msg( 'upload-maxfilesize',
 933                                 $this->getContext()->getLanguage()->formatSize( $this->mMaxUploadSize['file'] )
 934                         )->parse();
 935
 936                 // If the user can also upload by URL, there are 2 different file size limits.
 937                 // This extra message helps stress which limit corresponds to what.
 938                 if ( $canUploadByUrl ) {
 939                         $help .= $this->msg( 'word-separator' )->escaped();
 940                         $help .= $this->msg( 'upload_source_file' )->parse();
 941                 }
 942
 943                 $descriptor['UploadFile'] = [
 944                         'class' => 'UploadSourceField',
 945                         'section' => 'source',
 946                         'type' => 'file',
 947                         'id' => 'wpUploadFile',
 948                         'radio-id' => 'wpSourceTypeFile',
 949                         'label-message' => 'sourcefilename',
 950                         'upload-type' => 'File',
 951                         'radio' => &$radio,
 952                         'help' => $help,
 953                         'checked' => $selectedSourceType == 'file',
 954                 ];
 955
 956                 if ( $canUploadByUrl ) {
 957                         $this->mMaxUploadSize['url'] = UploadBase::getMaxUploadSize( 'url' );
 958                         $descriptor['UploadFileURL'] = [
 959                                 'class' => 'UploadSourceField',
 960                                 'section' => 'source',
 961                                 'id' => 'wpUploadFileURL',
 962                                 'radio-id' => 'wpSourceTypeurl',
 963                                 'label-message' => 'sourceurl',
 964                                 'upload-type' => 'url',
 965                                 'radio' => &$radio,
 966                                 'help' => $this->msg( 'upload-maxfilesize',
 967                                         $this->getContext()->getLanguage()->formatSize( $this->mMaxUploadSize['url'] )
 968                                 )->parse() .
 969                                         $this->msg( 'word-separator' )->escaped() .
 970                                         $this->msg( 'upload_source_url' )->parse(),
 971                                 'checked' => $selectedSourceType == 'url',
 972                         ];
 973                 }
 974                 Hooks::run( 'UploadFormSourceDescriptors', [ &$descriptor, &$radio, $selectedSourceType ] );
 975
 976                 $descriptor['Extensions'] = [
 977                         'type' => 'info',
 978                         'section' => 'source',
 979                         'default' => $this->getExtensionsMessage(),
 980                         'raw' => true,
 981                 ];
 982
 983                 return $descriptor;
 984         }
 985
 986         /**
 987          * Get the messages indicating which extensions are preferred and prohibitted.
 988          *
 989          * @return string HTML string containing the message
 990          */
 991         protected function getExtensionsMessage() {
 992                 # Print a list of allowed file extensions, if so configured.  We ignore
 993                 # MIME type here, it's incomprehensible to most people and too long.
 994                 $config = $this->getConfig();
 995
 996                 if ( $config->get( 'CheckFileExtensions' ) ) {
 997                         $fileExtensions = array_unique( $config->get( 'FileExtensions' ) );
 998                         if ( $config->get( 'StrictFileExtensions' ) ) {
 999                                 # Everything not permitted is banned
1000                                 $extensionsList =
1001                                         '<div id="mw-upload-permitted">' .
1002                                         $this->msg( 'upload-permitted' )
1003                                                 ->params( $this->getLanguage()->commaList( $fileExtensions ) )
1004                                                 ->numParams( count( $fileExtensions ) )
1005                                                 ->parseAsBlock() .
1006                                         "</div>\n";
1007                         } else {
1008                                 # We have to list both preferred and prohibited
1009                                 $fileBlacklist = array_unique( $config->get( 'FileBlacklist' ) );
1010                                 $extensionsList =
1011                                         '<div id="mw-upload-preferred">' .
1012                                                 $this->msg( 'upload-preferred' )
1013                                                         ->params( $this->getLanguage()->commaList( $fileExtensions ) )
1014                                                         ->numParams( count( $fileExtensions ) )
1015                                                         ->parseAsBlock() .
1016                                         "</div>\n" .
1017                                         '<div id="mw-upload-prohibited">' .
1018                                                 $this->msg( 'upload-prohibited' )
1019                                                         ->params( $this->getLanguage()->commaList( $fileBlacklist ) )
1020                                                         ->numParams( count( $fileBlacklist ) )
1021                                                         ->parseAsBlock() .
1022                                         "</div>\n";
1023                         }
1024                 } else {
1025                         # Everything is permitted.
1026                         $extensionsList = '';
1027                 }
1028
1029                 return $extensionsList;
1030         }
1031
1032         /**
1033          * Get the descriptor of the fieldset that contains the file description
1034          * input. The section is 'description'
1035          *
1036          * @return array Descriptor array
1037          */
1038         protected function getDescriptionSection() {
1039                 $config = $this->getConfig();
1040                 if ( $this->mSessionKey ) {
1041                         $stash = RepoGroup::singleton()->getLocalRepo()->getUploadStash( $this->getUser() );
1042                         try {
1043                                 $file = $stash->getFile( $this->mSessionKey );
1044                         } catch ( Exception $e ) {
1045                                 $file = null;
1046                         }
1047                         if ( $file ) {
1048                                 global $wgContLang;
1049
1050                                 $mto = $file->transform( [ 'width' => 120 ] );
1051                                 $this->addHeaderText(
1052                                         '<div class="thumb t' . $wgContLang->alignEnd() . '">' .
1053                                         Html::element( 'img', [
1054                                                 'src' => $mto->getUrl(),
1055                                                 'class' => 'thumbimage',
1056                                         ] ) . '</div>', 'description' );
1057                         }
1058                 }
1059
1060                 $descriptor = [
1061                         'DestFile' => [
1062                                 'type' => 'text',
1063                                 'section' => 'description',
1064                                 'id' => 'wpDestFile',
1065                                 'label-message' => 'destfilename',
1066                                 'size' => 60,
1067                                 'default' => $this->mDestFile,
1068                                 # @todo FIXME: Hack to work around poor handling of the 'default' option in HTMLForm
1069                                 'nodata' => strval( $this->mDestFile ) !== '',
1070                         ],
1071                         'UploadDescription' => [
1072                                 'type' => 'textarea',
1073                                 'section' => 'description',
1074                                 'id' => 'wpUploadDescription',
1075                                 'label-message' => $this->mForReUpload
1076                                         ? 'filereuploadsummary'
1077                                         : 'fileuploadsummary',
1078                                 'default' => $this->mComment,
1079                                 'cols' => $this->getUser()->getIntOption( 'cols' ),
1080                                 'rows' => 8,
1081                         ]
1082                 ];
1083                 if ( $this->mTextAfterSummary ) {
1084                         $descriptor['UploadFormTextAfterSummary'] = [
1085                                 'type' => 'info',
1086                                 'section' => 'description',
1087                                 'default' => $this->mTextAfterSummary,
1088                                 'raw' => true,
1089                         ];
1090                 }
1091
1092                 $descriptor += [
1093                         'EditTools' => [
1094                                 'type' => 'edittools',
1095                                 'section' => 'description',
1096                                 'message' => 'edittools-upload',
1097                         ]
1098                 ];
1099
1100                 if ( $this->mForReUpload ) {
1101                         $descriptor['DestFile']['readonly'] = true;
1102                 } else {
1103                         $descriptor['License'] = [
1104                                 'type' => 'select',
1105                                 'class' => 'Licenses',
1106                                 'section' => 'description',
1107                                 'id' => 'wpLicense',
1108                                 'label-message' => 'license',
1109                         ];
1110                 }
1111
1112                 if ( $config->get( 'UseCopyrightUpload' ) ) {
1113                         $descriptor['UploadCopyStatus'] = [
1114                                 'type' => 'text',
1115                                 'section' => 'description',
1116                                 'id' => 'wpUploadCopyStatus',
1117                                 'label-message' => 'filestatus',
1118                         ];
1119                         $descriptor['UploadSource'] = [
1120                                 'type' => 'text',
1121                                 'section' => 'description',
1122                                 'id' => 'wpUploadSource',
1123                                 'label-message' => 'filesource',
1124                         ];
1125                 }
1126
1127                 return $descriptor;
1128         }
1129
1130         /**
1131          * Get the descriptor of the fieldset that contains the upload options,
1132          * such as "watch this file". The section is 'options'
1133          *
1134          * @return array Descriptor array
1135          */
1136         protected function getOptionsSection() {
1137                 $user = $this->getUser();
1138                 if ( $user->isLoggedIn() ) {
1139                         $descriptor = [
1140                                 'Watchthis' => [
1141                                         'type' => 'check',
1142                                         'id' => 'wpWatchthis',
1143                                         'label-message' => 'watchthisupload',
1144                                         'section' => 'options',
1145                                         'default' => $this->mWatch,
1146                                 ]
1147                         ];
1148                 }
1149                 if ( !$this->mHideIgnoreWarning ) {
1150                         $descriptor['IgnoreWarning'] = [
1151                                 'type' => 'check',
1152                                 'id' => 'wpIgnoreWarning',
1153                                 'label-message' => 'ignorewarnings',
1154                                 'section' => 'options',
1155                         ];
1156                 }
1157
1158                 $descriptor['DestFileWarningAck'] = [
1159                         'type' => 'hidden',
1160                         'id' => 'wpDestFileWarningAck',
1161                         'default' => $this->mDestWarningAck ? '1' : '',
1162                 ];
1163
1164                 if ( $this->mForReUpload ) {
1165                         $descriptor['ForReUpload'] = [
1166                                 'type' => 'hidden',
1167                                 'id' => 'wpForReUpload',
1168                                 'default' => '1',
1169                         ];
1170                 }
1171
1172                 return $descriptor;
1173         }
1174
1175         /**
1176          * Add the upload JS and show the form.
1177          */
1178         public function show() {
1179                 $this->addUploadJS();
1180                 parent::show();
1181         }
1182
1183         /**
1184          * Add upload JS to the OutputPage
1185          */
1186         protected function addUploadJS() {
1187                 $config = $this->getConfig();
1188
1189                 $useAjaxDestCheck = $config->get( 'UseAjax' ) && $config->get( 'AjaxUploadDestCheck' );
1190                 $useAjaxLicensePreview = $config->get( 'UseAjax' ) &&
1191                         $config->get( 'AjaxLicensePreview' ) && $config->get( 'EnableAPI' );
1192                 $this->mMaxUploadSize['*'] = UploadBase::getMaxUploadSize();
1193
1194                 $scriptVars = [
1195                         'wgAjaxUploadDestCheck' => $useAjaxDestCheck,
1196                         'wgAjaxLicensePreview' => $useAjaxLicensePreview,
1197                         'wgUploadAutoFill' => !$this->mForReUpload &&
1198                                 // If we received mDestFile from the request, don't autofill
1199                                 // the wpDestFile textbox
1200                                 $this->mDestFile === '',
1201                         'wgUploadSourceIds' => $this->mSourceIds,
1202                         'wgCheckFileExtensions' => $config->get( 'CheckFileExtensions' ),
1203                         'wgStrictFileExtensions' => $config->get( 'StrictFileExtensions' ),
1204                         'wgFileExtensions' => array_values( array_unique( $config->get( 'FileExtensions' ) ) ),
1205                         'wgCapitalizeUploads' => MWNamespace::isCapitalized( NS_FILE ),
1206                         'wgMaxUploadSize' => $this->mMaxUploadSize,
1207                         'wgFileCanRotate' => SpecialUpload::rotationEnabled(),
1208                 ];
1209
1210                 $out = $this->getOutput();
1211                 $out->addJsConfigVars( $scriptVars );
1212
1213                 $out->addModules( [
1214                         'mediawiki.action.edit', // For <charinsert> support
1215                         'mediawiki.special.upload', // Extras for thumbnail and license preview.
1216                 ] );
1217         }
1218
1219         /**
1220          * Empty function; submission is handled elsewhere.
1221          *
1222          * @return bool False
1223          */
1224         function trySubmit() {
1225                 return false;
1226         }
1227 }
1228
1229 /**
1230  * A form field that contains a radio box in the label
1231  */
1232 class UploadSourceField extends HTMLTextField {
1233
1234         /**
1235          * @param array $cellAttributes
1236          * @return string
1237          */
1238         function getLabelHtml( $cellAttributes = [] ) {
1239                 $id = $this->mParams['id'];
1240                 $label = Html::rawElement( 'label', [ 'for' => $id ], $this->mLabel );
1241
1242                 if ( !empty( $this->mParams['radio'] ) ) {
1243                         if ( isset( $this->mParams['radio-id'] ) ) {
1244                                 $radioId = $this->mParams['radio-id'];
1245                         } else {
1246                                 // Old way. For the benefit of extensions that do not define
1247                                 // the 'radio-id' key.
1248                                 $radioId = 'wpSourceType' . $this->mParams['upload-type'];
1249                         }
1250
1251                         $attribs = [
1252                                 'name' => 'wpSourceType',
1253                                 'type' => 'radio',
1254                                 'id' => $radioId,
1255                                 'value' => $this->mParams['upload-type'],
1256                         ];
1257
1258                         if ( !empty( $this->mParams['checked'] ) ) {
1259                                 $attribs['checked'] = 'checked';
1260                         }
1261
1262                         $label .= Html::element( 'input', $attribs );
1263                 }
1264
1265                 return Html::rawElement( 'td', [ 'class' => 'mw-label' ] + $cellAttributes, $label );
1266         }
1267
1268         /**
1269          * @return int
1270          */
1271         function getSize() {
1272                 return isset( $this->mParams['size'] )
1273                         ? $this->mParams['size']
1274                         : 60;
1275         }
1276 }