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