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                 global $wgRequest;
  39
  40                 parent::__construct( 'Upload', 'upload' );
  41
  42                 $this->loadRequest( is_null( $request ) ? $wgRequest : $request );
  43         }
  44
  45         /** Misc variables **/
  46         public $mRequest;                       // The WebRequest or FauxRequest this form is supposed to handle
  47         public $mSourceType;
  48         public $mUpload;
  49         public $mLocalFile;
  50         public $mUploadClicked;
  51
  52         /** User input variables from the "description" section **/
  53         public $mDesiredDestName;       // The requested target file name
  54         public $mComment;
  55         public $mLicense;
  56
  57         /** User input variables from the root section **/
  58         public $mIgnoreWarning;
  59         public $mWatchThis;
  60         public $mCopyrightStatus;
  61         public $mCopyrightSource;
  62
  63         /** Hidden variables **/
  64         public $mDestWarningAck;
  65         public $mForReUpload;           // The user followed an "overwrite this file" link
  66         public $mCancelUpload;          // The user clicked "Cancel and return to upload form" button
  67         public $mTokenOk;
  68         public $mUploadSuccessful = false;      // Subclasses can use this to determine whether a file was uploaded
  69
  70         /** Text injection points for hooks not using HTMLForm **/
  71         public $uploadFormTextTop;
  72         public $uploadFormTextAfterSummary;
  73
  74         /**
  75          * Initialize instance variables from request and create an Upload handler
  76          *
  77          * @param $request WebRequest: the request to extract variables from
  78          */
  79         protected function loadRequest( $request ) {
  80                 global $wgUser;
  81
  82                 $this->mRequest = $request;
  83                 $this->mSourceType        = $request->getVal( 'wpSourceType', 'file' );
  84                 $this->mUpload            = UploadBase::createFromRequest( $request );
  85                 $this->mUploadClicked     = $request->wasPosted()
  86                         && ( $request->getCheck( 'wpUpload' )
  87                                 || $request->getCheck( 'wpUploadIgnoreWarning' ) );
  88
  89                 // Guess the desired name from the filename if not provided
  90                 $this->mDesiredDestName   = $request->getText( 'wpDestFile' );
  91                 if( !$this->mDesiredDestName && $request->getFileName( 'wpUploadFile' ) !== null ) {
  92                         $this->mDesiredDestName = $request->getFileName( 'wpUploadFile' );
  93                 }
  94                 $this->mComment           = $request->getText( 'wpUploadDescription' );
  95                 $this->mLicense           = $request->getText( 'wpLicense' );
  96
  97
  98                 $this->mDestWarningAck    = $request->getText( 'wpDestFileWarningAck' );
  99                 $this->mIgnoreWarning     = $request->getCheck( 'wpIgnoreWarning' )
 100                         || $request->getCheck( 'wpUploadIgnoreWarning' );
 101                 $this->mWatchthis         = $request->getBool( 'wpWatchthis' ) && $wgUser->isLoggedIn();
 102                 $this->mCopyrightStatus   = $request->getText( 'wpUploadCopyStatus' );
 103                 $this->mCopyrightSource   = $request->getText( 'wpUploadSource' );
 104
 105
 106                 $this->mForReUpload       = $request->getBool( 'wpForReUpload' ); // updating a file
 107                 $this->mCancelUpload      = $request->getCheck( 'wpCancelUpload' )
 108                                          || $request->getCheck( 'wpReUpload' ); // b/w compat
 109
 110                 // If it was posted check for the token (no remote POST'ing with user credentials)
 111                 $token = $request->getVal( 'wpEditToken' );
 112                 if( $this->mSourceType == 'file' && $token == null ) {
 113                         // Skip token check for file uploads as that can't be faked via JS...
 114                         // Some client-side tools don't expect to need to send wpEditToken
 115                         // with their submissions, as that's new in 1.16.
 116                         $this->mTokenOk = true;
 117                 } else {
 118                         $this->mTokenOk = $wgUser->matchEditToken( $token );
 119                 }
 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 ) {
 134                 return UploadBase::isEnabled() && parent::userCanExecute( $user );
 135         }
 136
 137         /**
 138          * Special page entry point
 139          */
 140         public function execute( $par ) {
 141                 global $wgUser, $wgOut;
 142
 143                 $this->setHeaders();
 144                 $this->outputHeader();
 145
 146                 # Check uploading enabled
 147                 if( !UploadBase::isEnabled() ) {
 148                         $wgOut->showErrorPage( 'uploaddisabled', 'uploaddisabledtext' );
 149                         return;
 150                 }
 151
 152                 # Check permissions
 153                 global $wgGroupPermissions;
 154                 $permissionRequired = UploadBase::isAllowed( $wgUser );
 155                 if( $permissionRequired !== true ) {
 156                         if( !$wgUser->isLoggedIn() && ( $wgGroupPermissions['user']['upload']
 157                                 || $wgGroupPermissions['autoconfirmed']['upload'] ) ) {
 158                                 // Custom message if logged-in users without any special rights can upload
 159                                 $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
 160                         } else {
 161                                 $wgOut->permissionRequired( $permissionRequired );
 162                         }
 163                         return;
 164                 }
 165
 166                 # Check blocks
 167                 if( $wgUser->isBlocked() ) {
 168                         $wgOut->blockedPage();
 169                         return;
 170                 }
 171
 172                 # Check whether we actually want to allow changing stuff
 173                 if( wfReadOnly() ) {
 174                         $wgOut->readOnlyPage();
 175                         return;
 176                 }
 177
 178                 # Unsave the temporary file in case this was a cancelled upload
 179                 if ( $this->mCancelUpload ) {
 180                         if ( !$this->unsaveUploadedFile() ) {
 181                                 # Something went wrong, so unsaveUploadedFile showed a warning
 182                                 return;
 183                         }
 184                 }
 185
 186                 # Process upload or show a form
 187                 if (
 188                         $this->mTokenOk && !$this->mCancelUpload &&
 189                         ( $this->mUpload && $this->mUploadClicked )
 190                 )
 191                 {
 192                         $this->processUpload();
 193                 } else {
 194                         # Backwards compatibility hook
 195                         if( !wfRunHooks( 'UploadForm:initial', array( &$this ) ) ) {
 196                                 wfDebug( "Hook 'UploadForm:initial' broke output of the upload form" );
 197                                 return;
 198                         }
 199
 200
 201                         $this->showUploadForm( $this->getUploadForm() );
 202                 }
 203
 204                 # Cleanup
 205                 if ( $this->mUpload ) {
 206                         $this->mUpload->cleanupTempFile();
 207                 }
 208         }
 209
 210         /**
 211          * Show the main upload form
 212          *
 213          * @param $form Mixed: an HTMLForm instance or HTML string to show
 214          */
 215         protected function showUploadForm( $form ) {
 216                 # Add links if file was previously deleted
 217                 if ( !$this->mDesiredDestName ) {
 218                         $this->showViewDeletedLinks();
 219                 }
 220
 221                 if ( $form instanceof HTMLForm ) {
 222                         $form->show();
 223                 } else {
 224                         global $wgOut;
 225                         $wgOut->addHTML( $form );
 226                 }
 227
 228         }
 229
 230         /**
 231          * Get an UploadForm instance with title and text properly set.
 232          *
 233          * @param $message String: HTML string to add to the form
 234          * @param $sessionKey String: session key in case this is a stashed upload
 235          * @param $hideIgnoreWarning Boolean: whether to hide "ignore warning" check box
 236          * @return UploadForm
 237          */
 238         protected function getUploadForm( $message = '', $sessionKey = '', $hideIgnoreWarning = false ) {
 239                 global $wgOut;
 240
 241                 # Initialize form
 242                 $form = new UploadForm( array(
 243                         'watch' => $this->getWatchCheck(),
 244                         'forreupload' => $this->mForReUpload,
 245                         'sessionkey' => $sessionKey,
 246                         'hideignorewarning' => $hideIgnoreWarning,
 247                         'destwarningack' => (bool)$this->mDestWarningAck,
 248
 249                         'description' => $this->mComment,
 250                         'texttop' => $this->uploadFormTextTop,
 251                         'textaftersummary' => $this->uploadFormTextAfterSummary,
 252                         'destfile' => $this->mDesiredDestName,
 253                 ) );
 254                 $form->setTitle( $this->getTitle() );
 255
 256                 # Check the token, but only if necessary
 257                 if(
 258                         !$this->mTokenOk && !$this->mCancelUpload &&
 259                         ( $this->mUpload && $this->mUploadClicked )
 260                 )
 261                 {
 262                         $form->addPreText( wfMsgExt( 'session_fail_preview', 'parseinline' ) );
 263                 }
 264
 265                 # Give a notice if the user is uploading a file that has been deleted or moved
 266                 # Note that this is independent from the message 'filewasdeleted' that requires JS
 267                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 268                 $delNotice = ''; // empty by default
 269                 if ( $desiredTitleObj instanceof Title && !$desiredTitleObj->exists() ) {
 270                         LogEventsList::showLogExtract( $delNotice, array( 'delete', 'move' ),
 271                                 $desiredTitleObj->getPrefixedText(),
 272                                 '', array( 'lim' => 10,
 273                                            'conds' => array( "log_action != 'revision'" ),
 274                                            'showIfEmpty' => false,
 275                                            'msgKey' => array( 'upload-recreate-warning' ) )
 276                         );
 277                 }
 278                 $form->addPreText( $delNotice );
 279
 280                 # Add text to form
 281                 $form->addPreText( '<div id="uploadtext">' .
 282                         wfMsgExt( 'uploadtext', 'parse', array( $this->mDesiredDestName ) ) .
 283                         '</div>' );
 284                 # Add upload error message
 285                 $form->addPreText( $message );
 286
 287                 # Add footer to form
 288                 $uploadFooter = wfMessage( 'uploadfooter' );
 289                 if ( !$uploadFooter->isDisabled() ) {
 290                         $form->addPostText( '<div id="mw-upload-footer-message">'
 291                                 . $wgOut->parse( $uploadFooter->plain() ) . "</div>\n" );
 292                 }
 293
 294                 return $form;
 295
 296         }
 297
 298         /**
 299          * Shows the "view X deleted revivions link""
 300          */
 301         protected function showViewDeletedLinks() {
 302                 global $wgOut, $wgUser;
 303
 304                 $title = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 305                 // Show a subtitle link to deleted revisions (to sysops et al only)
 306                 if( $title instanceof Title ) {
 307                         $count = $title->isDeleted();
 308                         if ( $count > 0 && $wgUser->isAllowed( 'deletedhistory' ) ) {
 309                                 $link = wfMsgExt(
 310                                         $wgUser->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted',
 311                                         array( 'parse', 'replaceafter' ),
 312                                         $wgUser->getSkin()->linkKnown(
 313                                                 SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
 314                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $count )
 315                                         )
 316                                 );
 317                                 $wgOut->addHTML( "<div id=\"contentSub2\">{$link}</div>" );
 318                         }
 319                 }
 320
 321                 // Show the relevant lines from deletion log (for still deleted files only)
 322                 if( $title instanceof Title && $title->isDeletedQuick() && !$title->exists() ) {
 323                         $this->showDeletionLog( $wgOut, $title->getPrefixedText() );
 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 $message String: HTML message to be passed to mainUploadForm
 337          */
 338         protected function showRecoverableUploadError( $message ) {
 339                 $sessionKey = $this->mUpload->stashSession();
 340                 $message = '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" .
 341                         '<div class="error">' . $message . "</div>\n";
 342
 343                 $form = $this->getUploadForm( $message, $sessionKey );
 344                 $form->setSubmitText( wfMsg( 'upload-tryagain' ) );
 345                 $this->showUploadForm( $form );
 346         }
 347         /**
 348          * Stashes the upload, shows the main form, but adds an "continue anyway button".
 349          * Also checks whether there are actually warnings to display.
 350          *
 351          * @param $warnings Array
 352          * @return boolean true if warnings were displayed, false if there are no
 353          *      warnings and the should continue processing like there was no warning
 354          */
 355         protected function showUploadWarning( $warnings ) {
 356                 # If there are no warnings, or warnings we can ignore, return early.
 357                 # mDestWarningAck is set when some javascript has shown the warning
 358                 # to the user. mForReUpload is set when the user clicks the "upload a
 359                 # new version" link.
 360                 if ( !$warnings || ( count( $warnings ) == 1 &&
 361                         isset( $warnings['exists'] ) &&
 362                         ( $this->mDestWarningAck || $this->mForReUpload ) ) )
 363                 {
 364                         return false;
 365                 }
 366
 367                 $sessionKey = $this->mUpload->stashSession();
 368
 369                 $warningHtml = '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n"
 370                         . '<ul class="warning">';
 371                 foreach( $warnings as $warning => $args ) {
 372                         if( $warning == 'exists' ) {
 373                                 $msg = "\t<li>" . self::getExistsWarning( $args ) . "</li>\n";
 374                         } elseif( $warning == 'duplicate' ) {
 375                                 $msg = self::getDupeWarning( $args );
 376                         } elseif( $warning == 'duplicate-archive' ) {
 377                                 $msg = "\t<li>" . wfMsgExt( 'file-deleted-duplicate', 'parseinline',
 378                                                 array( Title::makeTitle( NS_FILE, $args )->getPrefixedText() ) )
 379                                         . "</li>\n";
 380                         } else {
 381                                 if ( $args === true ) {
 382                                         $args = array();
 383                                 } elseif ( !is_array( $args ) ) {
 384                                         $args = array( $args );
 385                                 }
 386                                 $msg = "\t<li>" . wfMsgExt( $warning, 'parseinline', $args ) . "</li>\n";
 387                         }
 388                         $warningHtml .= $msg;
 389                 }
 390                 $warningHtml .= "</ul>\n";
 391                 $warningHtml .= wfMsgExt( 'uploadwarning-text', 'parse' );
 392
 393                 $form = $this->getUploadForm( $warningHtml, $sessionKey, /* $hideIgnoreWarning */ true );
 394                 $form->setSubmitText( wfMsg( 'upload-tryagain' ) );
 395                 $form->addButton( 'wpUploadIgnoreWarning', wfMsg( 'ignorewarning' ) );
 396                 $form->addButton( 'wpCancelUpload', wfMsg( 'reuploaddesc' ) );
 397
 398                 $this->showUploadForm( $form );
 399
 400                 # Indicate that we showed a form
 401                 return true;
 402         }
 403
 404         /**
 405          * Show the upload form with error message, but do not stash the file.
 406          *
 407          * @param $message HTML string
 408          */
 409         protected function showUploadError( $message ) {
 410                 $message = '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" .
 411                         '<div class="error">' . $message . "</div>\n";
 412                 $this->showUploadForm( $this->getUploadForm( $message ) );
 413         }
 414
 415         /**
 416          * Do the upload.
 417          * Checks are made in SpecialUpload::execute()
 418          */
 419         protected function processUpload() {
 420                 global $wgUser, $wgOut;
 421
 422                 // Fetch the file if required
 423                 $status = $this->mUpload->fetchFile();
 424                 if( !$status->isOK() ) {
 425                         $this->showUploadError( $wgOut->parse( $status->getWikiText() ) );
 426                         return;
 427                 }
 428
 429                 if( !wfRunHooks( 'UploadForm:BeforeProcessing', array( &$this ) ) ) {
 430                         wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file.\n" );
 431                         // This code path is deprecated. If you want to break upload processing
 432                         // do so by hooking into the appropriate hooks in UploadBase::verifyUpload
 433                         // and UploadBase::verifyFile.
 434                         // If you use this hook to break uploading, the user will be returned
 435                         // an empty form with no error message whatsoever.
 436                         return;
 437                 }
 438
 439
 440                 // Upload verification
 441                 $details = $this->mUpload->verifyUpload();
 442                 if ( $details['status'] != UploadBase::OK ) {
 443                         $this->processVerificationError( $details );
 444                         return;
 445                 }
 446
 447                 // Verify permissions for this title
 448                 $permErrors = $this->mUpload->verifyPermissions( $wgUser );
 449                 if( $permErrors !== true ) {
 450                         $code = array_shift( $permErrors[0] );
 451                         $this->showRecoverableUploadError( wfMsgExt( $code,
 452                                         'parseinline', $permErrors[0] ) );
 453                         return;
 454                 }
 455
 456                 $this->mLocalFile = $this->mUpload->getLocalFile();
 457
 458                 // Check warnings if necessary
 459                 if( !$this->mIgnoreWarning ) {
 460                         $warnings = $this->mUpload->checkWarnings();
 461                         if( $this->showUploadWarning( $warnings ) ) {
 462                                 return;
 463                         }
 464                 }
 465
 466                 // Get the page text if this is not a reupload
 467                 if( !$this->mForReUpload ) {
 468                         $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
 469                                 $this->mCopyrightStatus, $this->mCopyrightSource );
 470                 } else {
 471                         $pageText = false;
 472                 }
 473                 $status = $this->mUpload->performUpload( $this->mComment, $pageText, $this->mWatchthis, $wgUser );
 474                 if ( !$status->isGood() ) {
 475                         $this->showUploadError( $wgOut->parse( $status->getWikiText() ) );
 476                         return;
 477                 }
 478
 479                 // Success, redirect to description page
 480                 $this->mUploadSuccessful = true;
 481                 wfRunHooks( 'SpecialUploadComplete', array( &$this ) );
 482                 $wgOut->redirect( $this->mLocalFile->getTitle()->getFullURL() );
 483         }
 484
 485         /**
 486          * Get the initial image page text based on a comment and optional file status information
 487          */
 488         public static function getInitialPageText( $comment = '', $license = '', $copyStatus = '', $source = '' ) {
 489                 global $wgUseCopyrightUpload, $wgForceUIMsgAsContentMsg;
 490                 $wgForceUIMsgAsContentMsg = (array) $wgForceUIMsgAsContentMsg;
 491
 492                 /* These messages are transcluded into the actual text of the description page.
 493                  * Thus, forcing them as content messages makes the upload to produce an int: template
 494                  * instead of hardcoding it there in the uploader language.
 495                  */
 496                 foreach( array( 'license-header', 'filedesc', 'filestatus', 'filesource' ) as $msgName ) {
 497                         if ( in_array( $msgName, $wgForceUIMsgAsContentMsg ) ) {
 498                                 $msg[$msgName] = "{{int:$msgName}}";
 499                         } else {
 500                                 $msg[$msgName] = wfMsgForContent( $msgName );
 501                         }
 502                 }
 503
 504                 if ( $wgUseCopyrightUpload ) {
 505                         $licensetxt = '';
 506                         if ( $license != '' ) {
 507                                 $licensetxt = '== ' . $msg[ 'license-header' ] . " ==\n" . '{{' . $license . '}}' . "\n";
 508                         }
 509                         $pageText = '== ' . $msg[ 'filedesc' ] . " ==\n" . $comment . "\n" .
 510                                 '== ' . $msg[ 'filestatus' ] . " ==\n" . $copyStatus . "\n" .
 511                                 "$licensetxt" .
 512                                 '== ' . $msg[ 'filesource' ] . " ==\n" . $source;
 513                 } else {
 514                         if ( $license != '' ) {
 515                                 $filedesc = $comment == '' ? '' : '== ' . $msg[ 'filedesc' ] . " ==\n" . $comment . "\n";
 516                                         $pageText = $filedesc .
 517                                         '== ' . $msg[ 'license-header' ] . " ==\n" . '{{' . $license . '}}' . "\n";
 518                         } else {
 519                                 $pageText = $comment;
 520                         }
 521                 }
 522                 return $pageText;
 523         }
 524
 525         /**
 526          * See if we should check the 'watch this page' checkbox on the form
 527          * based on the user's preferences and whether we're being asked
 528          * to create a new file or update an existing one.
 529          *
 530          * In the case where 'watch edits' is off but 'watch creations' is on,
 531          * we'll leave the box unchecked.
 532          *
 533          * Note that the page target can be changed *on the form*, so our check
 534          * state can get out of sync.
 535          */
 536         protected function getWatchCheck() {
 537                 global $wgUser;
 538                 if( $wgUser->getOption( 'watchdefault' ) ) {
 539                         // Watch all edits!
 540                         return true;
 541                 }
 542
 543                 $local = wfLocalFile( $this->mDesiredDestName );
 544                 if( $local && $local->exists() ) {
 545                         // We're uploading a new version of an existing file.
 546                         // No creation, so don't watch it if we're not already.
 547                         return $local->getTitle()->userIsWatching();
 548                 } else {
 549                         // New page should get watched if that's our option.
 550                         return $wgUser->getOption( 'watchcreations' );
 551                 }
 552         }
 553
 554
 555         /**
 556          * Provides output to the user for a result of UploadBase::verifyUpload
 557          *
 558          * @param $details Array: result of UploadBase::verifyUpload
 559          */
 560         protected function processVerificationError( $details ) {
 561                 global $wgFileExtensions, $wgLang;
 562
 563                 switch( $details['status'] ) {
 564
 565                         /** Statuses that only require name changing **/
 566                         case UploadBase::MIN_LENGTH_PARTNAME:
 567                                 $this->showRecoverableUploadError( wfMsgHtml( 'minlength1' ) );
 568                                 break;
 569                         case UploadBase::ILLEGAL_FILENAME:
 570                                 $this->showRecoverableUploadError( wfMsgExt( 'illegalfilename',
 571                                         'parseinline', $details['filtered'] ) );
 572                                 break;
 573                         case UploadBase::FILETYPE_MISSING:
 574                                 $this->showRecoverableUploadError( wfMsgExt( 'filetype-missing',
 575                                         'parseinline' ) );
 576                                 break;
 577
 578                         /** Statuses that require reuploading **/
 579                         case UploadBase::EMPTY_FILE:
 580                                 $this->showUploadError( wfMsgHtml( 'emptyfile' ) );
 581                                 break;
 582                         case UploadBase::FILE_TOO_LARGE:
 583                                 $this->showUploadError( wfMsgHtml( 'largefileserver' ) );
 584                                 break;
 585                         case UploadBase::FILETYPE_BADTYPE:
 586                                 $msg = wfMessage( 'filetype-banned-type' );
 587                                 $sep = wfMsg( 'comma-separator' );
 588                                 if ( isset( $details['blacklistedExt'] ) ) {
 589                                         $msg->params( implode( $sep, $details['blacklistedExt'] ) );
 590                                 } else {
 591                                         $msg->params( $details['finalExt'] );
 592                                 }
 593                                 $msg->params( implode( $sep, $wgFileExtensions ),
 594                                         count( $wgFileExtensions ) );
 595
 596                                 // Add PLURAL support for the first parameter. This results
 597                                 // in a bit unlogical parameter sequence, but does not break
 598                                 // old translations
 599                                 if ( isset( $details['blacklistedExt'] ) ) {
 600                                         $msg->numParams( count( $details['blacklistedExt'] ) );
 601                                 } else {
 602                                         $msg->numParams( 1 );
 603                                 }
 604
 605                                 $this->showUploadError( $msg->parse() );
 606                                 break;
 607                         case UploadBase::VERIFICATION_ERROR:
 608                                 unset( $details['status'] );
 609                                 $code = array_shift( $details['details'] );
 610                                 $this->showUploadError( wfMsgExt( $code, 'parseinline', $details['details'] ) );
 611                                 break;
 612                         case UploadBase::HOOK_ABORTED:
 613                                 if ( is_array( $details['error'] ) ) { # allow hooks to return error details in an array
 614                                         $args = $details['error'];
 615                                         $error = array_shift( $args );
 616                                 } else {
 617                                         $error = $details['error'];
 618                                         $args = null;
 619                                 }
 620
 621                                 $this->showUploadError( wfMsgExt( $error, 'parseinline', $args ) );
 622                                 break;
 623                         default:
 624                                 throw new MWException( __METHOD__ . ": Unknown value `{$details['status']}`" );
 625                 }
 626         }
 627
 628         /**
 629          * Remove a temporarily kept file stashed by saveTempUploadedFile().
 630          *
 631          * @return Boolean: success
 632          */
 633         protected function unsaveUploadedFile() {
 634                 global $wgOut;
 635                 if ( !( $this->mUpload instanceof UploadFromStash ) ) {
 636                         return true;
 637                 }
 638                 $success = $this->mUpload->unsaveUploadedFile();
 639                 if ( !$success ) {
 640                         $wgOut->showFileDeleteError( $this->mUpload->getTempPath() );
 641                         return false;
 642                 } else {
 643                         return true;
 644                 }
 645         }
 646
 647         /*** Functions for formatting warnings ***/
 648
 649         /**
 650          * Formats a result of UploadBase::getExistsWarning as HTML
 651          * This check is static and can be done pre-upload via AJAX
 652          *
 653          * @param $exists Array: the result of UploadBase::getExistsWarning
 654          * @return String: empty string if there is no warning or an HTML fragment
 655          */
 656         public static function getExistsWarning( $exists ) {
 657                 global $wgUser;
 658
 659                 if ( !$exists ) {
 660                         return '';
 661                 }
 662
 663                 $file = $exists['file'];
 664                 $filename = $file->getTitle()->getPrefixedText();
 665                 $warning = '';
 666
 667                 $sk = $wgUser->getSkin();
 668
 669                 if( $exists['warning'] == 'exists' ) {
 670                         // Exact match
 671                         $warning = wfMsgExt( 'fileexists', 'parseinline', $filename );
 672                 } elseif( $exists['warning'] == 'page-exists' ) {
 673                         // Page exists but file does not
 674                         $warning = wfMsgExt( 'filepageexists', 'parseinline', $filename );
 675                 } elseif ( $exists['warning'] == 'exists-normalized' ) {
 676                         $warning = wfMsgExt( 'fileexists-extension', 'parseinline', $filename,
 677                                 $exists['normalizedFile']->getTitle()->getPrefixedText() );
 678                 } elseif ( $exists['warning'] == 'thumb' ) {
 679                         // Swapped argument order compared with other messages for backwards compatibility
 680                         $warning = wfMsgExt( 'fileexists-thumbnail-yes', 'parseinline',
 681                                 $exists['thumbFile']->getTitle()->getPrefixedText(), $filename );
 682                 } elseif ( $exists['warning'] == 'thumb-name' ) {
 683                         // Image w/o '180px-' does not exists, but we do not like these filenames
 684                         $name = $file->getName();
 685                         $badPart = substr( $name, 0, strpos( $name, '-' ) + 1 );
 686                         $warning = wfMsgExt( 'file-thumbnail-no', 'parseinline', $badPart );
 687                 } elseif ( $exists['warning'] == 'bad-prefix' ) {
 688                         $warning = wfMsgExt( 'filename-bad-prefix', 'parseinline', $exists['prefix'] );
 689                 } elseif ( $exists['warning'] == 'was-deleted' ) {
 690                         # If the file existed before and was deleted, warn the user of this
 691                         $ltitle = SpecialPage::getTitleFor( 'Log' );
 692                         $llink = $sk->linkKnown(
 693                                 $ltitle,
 694                                 wfMsgHtml( 'deletionlog' ),
 695                                 array(),
 696                                 array(
 697                                         'type' => 'delete',
 698                                         'page' => $filename
 699                                 )
 700                         );
 701                         $warning = wfMsgWikiHtml( 'filewasdeleted', $llink );
 702                 }
 703
 704                 return $warning;
 705         }
 706
 707         /**
 708          * Get a list of warnings
 709          *
 710          * @param $filename String: local filename, e.g. 'file exists', 'non-descriptive filename'
 711          * @return Array: list of warning messages
 712          */
 713         public static function ajaxGetExistsWarning( $filename ) {
 714                 $file = wfFindFile( $filename );
 715                 if( !$file ) {
 716                         // Force local file so we have an object to do further checks against
 717                         // if there isn't an exact match...
 718                         $file = wfLocalFile( $filename );
 719                 }
 720                 $s = '&#160;';
 721                 if ( $file ) {
 722                         $exists = UploadBase::getExistsWarning( $file );
 723                         $warning = self::getExistsWarning( $exists );
 724                         if ( $warning !== '' ) {
 725                                 $s = "<div>$warning</div>";
 726                         }
 727                 }
 728                 return $s;
 729         }
 730
 731         /**
 732          * Construct a warning and a gallery from an array of duplicate files.
 733          */
 734         public static function getDupeWarning( $dupes ) {
 735                 if( $dupes ) {
 736                         global $wgOut;
 737                         $msg = '<gallery>';
 738                         foreach( $dupes as $file ) {
 739                                 $title = $file->getTitle();
 740                                 $msg .= $title->getPrefixedText() .
 741                                         '|' . $title->getText() . "\n";
 742                         }
 743                         $msg .= '</gallery>';
 744                         return '<li>' .
 745                                 wfMsgExt( 'file-exists-duplicate', array( 'parse' ), count( $dupes ) ) .
 746                                 $wgOut->parse( $msg ) .
 747                                 "</li>\n";
 748                 } else {
 749                         return '';
 750                 }
 751         }
 752
 753 }
 754
 755 /**
 756  * Sub class of HTMLForm that provides the form section of SpecialUpload
 757  */
 758 class UploadForm extends HTMLForm {
 759         protected $mWatch;
 760         protected $mForReUpload;
 761         protected $mSessionKey;
 762         protected $mHideIgnoreWarning;
 763         protected $mDestWarningAck;
 764         protected $mDestFile;
 765
 766         protected $mComment;
 767         protected $mTextTop;
 768         protected $mTextAfterSummary;
 769
 770         protected $mSourceIds;
 771
 772         public function __construct( $options = array() ) {
 773                 $this->mWatch = !empty( $options['watch'] );
 774                 $this->mForReUpload = !empty( $options['forreupload'] );
 775                 $this->mSessionKey = isset( $options['sessionkey'] )
 776                                 ? $options['sessionkey'] : '';
 777                 $this->mHideIgnoreWarning = !empty( $options['hideignorewarning'] );
 778                 $this->mDestWarningAck = !empty( $options['destwarningack'] );
 779                 $this->mDestFile = isset( $options['destfile'] ) ? $options['destfile'] : '';
 780
 781                 $this->mComment = isset( $options['description'] ) ?
 782                         $options['description'] : '';
 783
 784                 $this->mTextTop = isset( $options['texttop'] )
 785                         ? $options['texttop'] : '';
 786
 787                 $this->mTextAfterSummary = isset( $options['textaftersummary'] )
 788                         ? $options['textaftersummary'] : '';
 789
 790                 $sourceDescriptor = $this->getSourceSection();
 791                 $descriptor = $sourceDescriptor
 792                         + $this->getDescriptionSection()
 793                         + $this->getOptionsSection();
 794
 795                 wfRunHooks( 'UploadFormInitDescriptor', array( &$descriptor ) );
 796                 parent::__construct( $descriptor, 'upload' );
 797
 798                 # Set some form properties
 799                 $this->setSubmitText( wfMsg( 'uploadbtn' ) );
 800                 $this->setSubmitName( 'wpUpload' );
 801                 # Used message keys: 'accesskey-upload', 'tooltip-upload'
 802                 $this->setSubmitTooltip( 'upload' );
 803                 $this->setId( 'mw-upload-form' );
 804
 805                 # Build a list of IDs for javascript insertion
 806                 $this->mSourceIds = array();
 807                 foreach ( $sourceDescriptor as $field ) {
 808                         if ( !empty( $field['id'] ) ) {
 809                                 $this->mSourceIds[] = $field['id'];
 810                         }
 811                 }
 812
 813         }
 814
 815         /**
 816          * Get the descriptor of the fieldset that contains the file source
 817          * selection. The section is 'source'
 818          *
 819          * @return Array: descriptor array
 820          */
 821         protected function getSourceSection() {
 822                 global $wgLang, $wgUser, $wgRequest;
 823
 824                 if ( $this->mSessionKey ) {
 825                         return array(
 826                                 'SessionKey' => array(
 827                                         'type' => 'hidden',
 828                                         'default' => $this->mSessionKey,
 829                                 ),
 830                                 'SourceType' => array(
 831                                         'type' => 'hidden',
 832                                         'default' => 'Stash',
 833                                 ),
 834                         );
 835                 }
 836
 837                 $canUploadByUrl = UploadFromUrl::isEnabled() && $wgUser->isAllowed( 'upload_by_url' );
 838                 $radio = $canUploadByUrl;
 839                 $selectedSourceType = strtolower( $wgRequest->getText( 'wpSourceType', 'File' ) );
 840
 841                 $descriptor = array();
 842                 if ( $this->mTextTop ) {
 843                         $descriptor['UploadFormTextTop'] = array(
 844                                 'type' => 'info',
 845                                 'section' => 'source',
 846                                 'default' => $this->mTextTop,
 847                                 'raw' => true,
 848                         );
 849                 }
 850
 851                 $descriptor['UploadFile'] = array(
 852                         'class' => 'UploadSourceField',
 853                         'section' => 'source',
 854                         'type' => 'file',
 855                         'id' => 'wpUploadFile',
 856                         'label-message' => 'sourcefilename',
 857                         'upload-type' => 'File',
 858                         'radio' => &$radio,
 859                         'help' => wfMsgExt( 'upload-maxfilesize',
 860                                         array( 'parseinline', 'escapenoentities' ),
 861                                         $wgLang->formatSize(
 862                                                 wfShorthandToInteger( min(
 863                                                         wfShorthandToInteger(
 864                                                                 ini_get( 'upload_max_filesize' )
 865                                                         ), UploadBase::getMaxUploadSize( 'file' )
 866                                                 ) )
 867                                         )
 868                                 ) . ' ' . wfMsgHtml( 'upload_source_file' ),
 869                         'checked' => $selectedSourceType == 'file',
 870                 );
 871                 if ( $canUploadByUrl ) {
 872                         $descriptor['UploadFileURL'] = array(
 873                                 'class' => 'UploadSourceField',
 874                                 'section' => 'source',
 875                                 'id' => 'wpUploadFileURL',
 876                                 'label-message' => 'sourceurl',
 877                                 'upload-type' => 'url',
 878                                 'radio' => &$radio,
 879                                 'help' => wfMsgExt( 'upload-maxfilesize',
 880                                                 array( 'parseinline', 'escapenoentities' ),
 881                                                 $wgLang->formatSize( UploadBase::getMaxUploadSize( 'url' ) )
 882                                         ) . ' ' . wfMsgHtml( 'upload_source_url' ),
 883                                 'checked' => $selectedSourceType == 'url',
 884                         );
 885                 }
 886                 wfRunHooks( 'UploadFormSourceDescriptors', array( &$descriptor, &$radio, $selectedSourceType ) );
 887
 888                 $descriptor['Extensions'] = array(
 889                         'type' => 'info',
 890                         'section' => 'source',
 891                         'default' => $this->getExtensionsMessage(),
 892                         'raw' => true,
 893                 );
 894                 return $descriptor;
 895         }
 896
 897         /**
 898          * Get the messages indicating which extensions are preferred and prohibitted.
 899          *
 900          * @return String: HTML string containing the message
 901          */
 902         protected function getExtensionsMessage() {
 903                 # Print a list of allowed file extensions, if so configured.  We ignore
 904                 # MIME type here, it's incomprehensible to most people and too long.
 905                 global $wgLang, $wgCheckFileExtensions, $wgStrictFileExtensions,
 906                 $wgFileExtensions, $wgFileBlacklist;
 907
 908                 if( $wgCheckFileExtensions ) {
 909                         if( $wgStrictFileExtensions ) {
 910                                 # Everything not permitted is banned
 911                                 $extensionsList =
 912                                         '<div id="mw-upload-permitted">' .
 913                                         wfMsgWikiHtml( 'upload-permitted', $wgLang->commaList( $wgFileExtensions ) ) .
 914                                         "</div>\n";
 915                         } else {
 916                                 # We have to list both preferred and prohibited
 917                                 $extensionsList =
 918                                         '<div id="mw-upload-preferred">' .
 919                                         wfMsgWikiHtml( 'upload-preferred', $wgLang->commaList( $wgFileExtensions ) ) .
 920                                         "</div>\n" .
 921                                         '<div id="mw-upload-prohibited">' .
 922                                         wfMsgWikiHtml( 'upload-prohibited', $wgLang->commaList( $wgFileBlacklist ) ) .
 923                                         "</div>\n";
 924                         }
 925                 } else {
 926                         # Everything is permitted.
 927                         $extensionsList = '';
 928                 }
 929                 return $extensionsList;
 930         }
 931
 932         /**
 933          * Get the descriptor of the fieldset that contains the file description
 934          * input. The section is 'description'
 935          *
 936          * @return Array: descriptor array
 937          */
 938         protected function getDescriptionSection() {
 939                 global $wgUser;
 940
 941                 if ( $this->mSessionKey ) {
 942                         $stash = RepoGroup::singleton()->getLocalRepo()->getUploadStash();
 943                         try {
 944                                 $file = $stash->getFile( $this->mSessionKey );
 945                         } catch ( MWException $e ) {
 946                                 $file = null;
 947                         }
 948                         if ( $file ) {
 949                                 global $wgContLang;
 950
 951                                 $mto = $file->transform( array( 'width' => 120 ) );
 952                                 $this->addHeaderText(
 953                                         '<div class="thumb t' . $wgContLang->alignEnd() . '">' .
 954                                         Html::element( 'img', array(
 955                                                 'src' => $mto->getUrl(),
 956                                                 'class' => 'thumbimage',
 957                                         ) ) . '</div>', 'description' );
 958                         }
 959                 }
 960
 961                 $descriptor = array(
 962                         'DestFile' => array(
 963                                 'type' => 'text',
 964                                 'section' => 'description',
 965                                 'id' => 'wpDestFile',
 966                                 'label-message' => 'destfilename',
 967                                 'size' => 60,
 968                                 'default' => $this->mDestFile,
 969                                 # FIXME: hack to work around poor handling of the 'default' option in HTMLForm
 970                                 'nodata' => strval( $this->mDestFile ) !== '',
 971                         ),
 972                         'UploadDescription' => array(
 973                                 'type' => 'textarea',
 974                                 'section' => 'description',
 975                                 'id' => 'wpUploadDescription',
 976                                 'label-message' => $this->mForReUpload
 977                                         ? 'filereuploadsummary'
 978                                         : 'fileuploadsummary',
 979                                 'default' => $this->mComment,
 980                                 'cols' => intval( $wgUser->getOption( 'cols' ) ),
 981                                 'rows' => 8,
 982                         )
 983                 );
 984                 if ( $this->mTextAfterSummary ) {
 985                         $descriptor['UploadFormTextAfterSummary'] = array(
 986                                 'type' => 'info',
 987                                 'section' => 'description',
 988                                 'default' => $this->mTextAfterSummary,
 989                                 'raw' => true,
 990                         );
 991                 }
 992
 993                 $descriptor += array(
 994                         'EditTools' => array(
 995                                 'type' => 'edittools',
 996                                 'section' => 'description',
 997                         )
 998                 );
 999
1000                 if ( $this->mForReUpload ) {
1001                         $descriptor['DestFile']['readonly'] = true;
1002                 } else {
1003                         $descriptor['License'] = array(
1004                                 'type' => 'select',
1005                                 'class' => 'Licenses',
1006                                 'section' => 'description',
1007                                 'id' => 'wpLicense',
1008                                 'label-message' => 'license',
1009                         );
1010                 }
1011
1012                 global $wgUseCopyrightUpload;
1013                 if ( $wgUseCopyrightUpload ) {
1014                         $descriptor['UploadCopyStatus'] = array(
1015                                 'type' => 'text',
1016                                 'section' => 'description',
1017                                 'id' => 'wpUploadCopyStatus',
1018                                 'label-message' => 'filestatus',
1019                         );
1020                         $descriptor['UploadSource'] = array(
1021                                 'type' => 'text',
1022                                 'section' => 'description',
1023                                 'id' => 'wpUploadSource',
1024                                 'label-message' => 'filesource',
1025                         );
1026                 }
1027
1028                 return $descriptor;
1029         }
1030
1031         /**
1032          * Get the descriptor of the fieldset that contains the upload options,
1033          * such as "watch this file". The section is 'options'
1034          *
1035          * @return Array: descriptor array
1036          */
1037         protected function getOptionsSection() {
1038                 global $wgUser;
1039
1040                 if ( $wgUser->isLoggedIn() ) {
1041                         $descriptor = array(
1042                                 'Watchthis' => array(
1043                                         'type' => 'check',
1044                                         'id' => 'wpWatchthis',
1045                                         'label-message' => 'watchthisupload',
1046                                         'section' => 'options',
1047                                         'default' => $wgUser->getOption( 'watchcreations' ),
1048                                 )
1049                         );
1050                 }
1051                 if ( !$this->mHideIgnoreWarning ) {
1052                         $descriptor['IgnoreWarning'] = array(
1053                                 'type' => 'check',
1054                                 'id' => 'wpIgnoreWarning',
1055                                 'label-message' => 'ignorewarnings',
1056                                 'section' => 'options',
1057                         );
1058                 }
1059
1060                 $descriptor['DestFileWarningAck'] = array(
1061                         'type' => 'hidden',
1062                         'id' => 'wpDestFileWarningAck',
1063                         'default' => $this->mDestWarningAck ? '1' : '',
1064                 );
1065
1066                 if ( $this->mForReUpload ) {
1067                         $descriptor['ForReUpload'] = array(
1068                                 'type' => 'hidden',
1069                                 'id' => 'wpForReUpload',
1070                                 'default' => '1',
1071                         );
1072                 }
1073
1074                 return $descriptor;
1075         }
1076
1077         /**
1078          * Add the upload JS and show the form.
1079          */
1080         public function show() {
1081                 $this->addUploadJS();
1082                 parent::show();
1083         }
1084
1085         /**
1086          * Add upload JS to $wgOut
1087          */
1088         protected function addUploadJS() {
1089                 global $wgUseAjax, $wgAjaxUploadDestCheck, $wgAjaxLicensePreview, $wgEnableAPI, $wgStrictFileExtensions;
1090                 global $wgOut;
1091
1092                 $useAjaxDestCheck = $wgUseAjax && $wgAjaxUploadDestCheck;
1093                 $useAjaxLicensePreview = $wgUseAjax && $wgAjaxLicensePreview && $wgEnableAPI;
1094
1095                 $scriptVars = array(
1096                         'wgAjaxUploadDestCheck' => $useAjaxDestCheck,
1097                         'wgAjaxLicensePreview' => $useAjaxLicensePreview,
1098                         'wgUploadAutoFill' => !$this->mForReUpload &&
1099                                 // If we received mDestFile from the request, don't autofill
1100                                 // the wpDestFile textbox
1101                                 $this->mDestFile === '',
1102                         'wgUploadSourceIds' => $this->mSourceIds,
1103                         'wgStrictFileExtensions' => $wgStrictFileExtensions,
1104                         'wgCapitalizeUploads' => MWNamespace::isCapitalized( NS_FILE ),
1105                 );
1106
1107                 $wgOut->addScript( Skin::makeVariablesScript( $scriptVars ) );
1108
1109
1110                 $wgOut->addModules( array(
1111                         'mediawiki.legacy.edit', // For <charinsert> support
1112                         'mediawiki.legacy.upload', // Old form stuff...
1113                         'mediawiki.special.upload', // Newer extras for thumbnail preview.
1114                 ) );
1115         }
1116
1117         /**
1118          * Empty function; submission is handled elsewhere.
1119          *
1120          * @return bool false
1121          */
1122         function trySubmit() {
1123                 return false;
1124         }
1125
1126 }
1127
1128 /**
1129  * A form field that contains a radio box in the label
1130  */
1131 class UploadSourceField extends HTMLTextField {
1132         function getLabelHtml( $cellAttributes = array() ) {
1133                 $id = "wpSourceType{$this->mParams['upload-type']}";
1134                 $label = Html::rawElement( 'label', array( 'for' => $id ), $this->mLabel );
1135
1136                 if ( !empty( $this->mParams['radio'] ) ) {
1137                         $attribs = array(
1138                                 'name' => 'wpSourceType',
1139                                 'type' => 'radio',
1140                                 'id' => $id,
1141                                 'value' => $this->mParams['upload-type'],
1142                         );
1143                         if ( !empty( $this->mParams['checked'] ) ) {
1144                                 $attribs['checked'] = 'checked';
1145                         }
1146                         $label .= Html::element( 'input', $attribs );
1147                 }
1148
1149                 return Html::rawElement( 'td', array( 'class' => 'mw-label' ) + $cellAttributes, $label );
1150         }
1151
1152         function getSize() {
1153                 return isset( $this->mParams['size'] )
1154                         ? $this->mParams['size']
1155                         : 60;
1156         }
1157 }
1158