includes/SpecialUpload.php

   1 <?php
   2
   3 function wfSpecialUpload()
   4 {
   5         global $wgRequest;
   6         $form = new UploadForm( $wgRequest );
   7         $form->execute();
   8 }
   9
  10 class UploadForm {
  11         var $mUploadAffirm, $mUploadFile, $mUploadDescription, $mIgnoreWarning;
  12         var $mUploadSaveName, $mUploadTempName, $mUploadSize, $mUploadOldVersion;
  13         var $mUploadCopyStatus, $mUploadSource, $mReUpload, $mAction, $mUpload;
  14         var $mOname, $mSessionKey;
  15
  16         function UploadForm( &$request ) {
  17                 $this->mUploadAffirm = $request->getVal( 'wpUploadAffirm' );
  18                 $this->mUploadFile = $request->getVal( 'wpUploadFile' );
  19                 $this->mUploadDescription = $request->getVal( 'wpUploadDescription');
  20                 $this->mIgnoreWarning = $request->getVal( 'wpIgnoreWarning');
  21                 $this->mUploadSaveName = $request->getVal( 'wpUploadSaveName');
  22                 $this->mUploadTempName = $request->getVal( 'wpUploadTempName');
  23                 $this->mUploadTempName = $request->getVal( 'wpUploadTempName');
  24                 $this->mUploadSize = $request->getVal( 'wpUploadSize');
  25                 $this->mUploadOldVersion = $request->getVal( 'wpUploadOldVersion');
  26                 $this->mUploadCopyStatus = $request->getVal( 'wpUploadCopyStatus');
  27                 $this->mUploadSource = $request->getVal( 'wpUploadSource');
  28                 $this->mReUpload = $request->getCheck( 'wpReUpload' );
  29                 $this->mAction = $request->getVal( 'action' );
  30                 $this->mUpload = $request->getCheck( 'wpUpload' );
  31                 $this->mSessionKey = $request->getVal( 'wpSessionKey' );
  32
  33                 if ( ! $this->mUploadTempName ) {
  34                         $this->mUploadTempName = @$_FILES['wpUploadFile']['tmp_name'];
  35                 }
  36                 if ( ! $this->mUploadSize ) {
  37                         $this->mUploadSize = @$_FILES['wpUploadFile']['size'];
  38                 }
  39                 $this->mOname = $request->getGPCVal( $_FILES['wpUploadFile'], 'name', "" );
  40
  41         }
  42
  43         function execute() {
  44                 global $wgUser, $wgOut;
  45                 global $wgDisableUploads;
  46
  47                 if ( $wgDisableUploads ) {
  48                         $wgOut->addWikiText( wfMsg( "uploaddisabled" ) );
  49                         return;
  50                 }
  51                 if ( ( 0 == $wgUser->getID() )
  52                         or $wgUser->isBlocked() ) {
  53                         $wgOut->errorpage( "uploadnologin", "uploadnologintext" );
  54                         return;
  55                 }
  56                 if ( wfReadOnly() ) {
  57                         $wgOut->readOnlyPage();
  58                         return;
  59                 }
  60                 if ( $this->mReUpload ) {
  61                         $this->unsaveUploadedFile();
  62                         $this->mainUploadForm( "" );
  63                 } else if ( "submit" == $this->mAction || $this->mUpload ) {
  64                         $this->processUpload();
  65                 } else {
  66                         $this->mainUploadForm( "" );
  67                 }
  68         }
  69
  70
  71         function processUpload()
  72         {
  73                 global $wgUser, $wgOut, $wgLang;
  74                 global $wgUploadDirectory;
  75                 global $wgSavedFile, $wgUploadOldVersion;
  76                 global $wgUseCopyrightUpload, $wgCheckCopyrightUpload;
  77                 global $wgCheckFileExtensions, $wgStrictFileExtensions;
  78                 global $wgFileExtensions, $wgFileBlacklist, $wgUploadSizeWarning;
  79
  80                 if ( $wgUseCopyrightUpload ) {
  81                         $this->mUploadAffirm = 1;
  82                         if ($wgCheckCopyrightUpload &&
  83                                 (trim ( $this->mUploadCopyStatus ) == "" || trim ( $this->mUploadSource ) == "" )) {
  84                                 $this->mUploadAffirm = 0;
  85                         }
  86                 }
  87
  88                 if ( 1 != $this->mUploadAffirm ) {
  89                         $this->mainUploadForm( WfMsg( "noaffirmation" ) );
  90                         return;
  91                 }
  92
  93                 if ( "" != $this->mOname ) {
  94                         $basename = strrchr( $this->mOname, "/" );
  95
  96                         if ( false === $basename ) { $basename = $this->mOname; }
  97                         else ( $basename = substr( $basename, 1 ) );
  98
  99
 100                         $ext = strrchr( $basename, "." );
 101                         if ( false === $ext ) { $ext = ""; }
 102                         else { $ext = substr( $ext, 1 ); }
 103
 104                         if ( "" == $ext ) { $xl = 0; } else { $xl = strlen( $ext ) + 1; }
 105                         $partname = substr( $basename, 0, strlen( $basename ) - $xl );
 106
 107                         if ( strlen( $partname ) < 3 ) {
 108                                 $this->mainUploadForm( WfMsg( "minlength" ) );
 109                                 return;
 110                         }
 111
 112                         $changed_name = false;
 113                         $bn = preg_replace ( "/[^".Title::legalChars()."]/", '-', $basename );
 114                         if ( 0 != strcmp( $bn, $basename ) )
 115                         {
 116                                 $changed_name = true;
 117                                 $basename = $bn;
 118                         }
 119
 120
 121                         $nt = Title::newFromText( $basename );
 122                         if( !$nt ) {
 123                                 return $this->uploadError( wfMsg( "illegalfilename", htmlspecialchars( $basename ) ) );
 124                         }
 125                         $nt->setNamespace( Namespace::getImage() );
 126                         $this->mUploadSaveName = $nt->getDBkey();
 127
 128                         /* Don't allow users to override the blacklist */
 129                         if( $this->checkFileExtension( $ext, $wgFileBlacklist ) ||
 130                                 ($wgStrictFileExtensions && !$this->checkFileExtension( $ext, $wgFileExtensions ) ) ) {
 131                                 return $this->uploadError( wfMsg( "badfiletype", htmlspecialchars( $ext ) ) );
 132                         }
 133
 134                         $this->saveUploadedFile( $this->mUploadSaveName, $this->mUploadTempName );
 135                         if ( !$nt->userCanEdit() ) {
 136                                 return $this->uploadError( wfMsg( "protectedpage" ) );
 137                         }
 138
 139                         if ( ! $this->mIgnoreWarning ) {
 140                                 $warning = '';
 141                                 if( $changed_name || 0 != strcmp( ucfirst( $basename ), $this->mUploadSaveName ) ) {
 142                                         $warning .=  '<li>'.wfMsg( "badfilename", htmlspecialchars( $this->mUploadSaveName ) ).'</li>';
 143                                 }
 144
 145                                 if ( $wgCheckFileExtensions ) {
 146                                         if ( ! $this->checkFileExtension( $ext, $wgFileExtensions ) ) {
 147                                                 $warning .= '<li>'.wfMsg( "badfiletype", htmlspecialchars( $ext ) ).'</li>';
 148                                         }
 149                                 }
 150                                 if ( $wgUploadSizeWarning && ( $this->mUploadSize > $wgUploadSizeWarning ) ) {
 151                                         $warning .= '<li>'.wfMsg( "largefile" ).'</li>';
 152                                 }
 153                                 if ( $this->mUploadSize == 0 ) {
 154                                         $warning .= '<li>'.wfMsg( "emptyfile" ).'</li>';
 155                                 }
 156                                 if( $nt->getArticleID() ) {
 157                                         $sk = $wgUser->getSkin();
 158                                         $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$this->mUploadSaveName}";
 159                                         $dlink = $sk->makeKnownLink( $dname, $dname );
 160                                         $warning .= '<li>'.wfMsg( "fileexists", $dlink ).'</li>';
 161                                 }
 162                                 if($warning != '') return $this->uploadWarning($warning);
 163                         }
 164                 }
 165                 if ( !is_null( $this->mUploadOldVersion ) ) {
 166                         $wgUploadOldVersion = $this->mUploadOldVersion;
 167                 }
 168                 wfRecordUpload( $this->mUploadSaveName, $wgUploadOldVersion, $this->mUploadSize,
 169                   $this->mUploadDescription, $this->mUploadCopyStatus, $this->mUploadSource );
 170
 171                 $sk = $wgUser->getSkin();
 172                 $ilink = $sk->makeMediaLink( $this->mUploadSaveName, Image::wfImageUrl( $this->mUploadSaveName ) );
 173                 $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$this->mUploadSaveName}";
 174                 $dlink = $sk->makeKnownLink( $dname, $dname );
 175
 176                 $wgOut->addHTML( "<h2>" . wfMsg( "successfulupload" ) . "</h2>\n" );
 177                 $text = wfMsg( "fileuploaded", $ilink, $dlink );
 178                 $wgOut->addHTML( "<p>{$text}\n" );
 179                 $wgOut->returnToMain( false );
 180         }
 181
 182         function checkFileExtension( $ext, $list ) {
 183                 return in_array( strtolower( $ext ), $list );
 184         }
 185
 186         function saveUploadedFile( $saveName, $tempName )
 187         {
 188                 global $wgSavedFile, $wgUploadOldVersion;
 189                 global $wgUploadDirectory, $wgOut;
 190
 191                 $dest = wfImageDir( $saveName );
 192                 $archive = wfImageArchiveDir( $saveName );
 193                 $wgSavedFile = "{$dest}/{$saveName}";
 194
 195                 if ( is_file( $wgSavedFile ) ) {
 196                         $wgUploadOldVersion = gmdate( "YmdHis" ) . "!{$saveName}";
 197
 198                         if ( ! rename( $wgSavedFile, "${archive}/{$wgUploadOldVersion}" ) ) {
 199                                 $wgOut->fileRenameError( $wgSavedFile,
 200                                   "${archive}/{$wgUploadOldVersion}" );
 201                                 return;
 202                         }
 203                 } else {
 204                         $wgUploadOldVersion = "";
 205                 }
 206                 if ( ! move_uploaded_file( $tempName, $wgSavedFile ) ) {
 207                         $wgOut->fileCopyError( $tempName, $wgSavedFile );
 208                 }
 209                 chmod( $wgSavedFile, 0644 );
 210         }
 211
 212         function unsaveUploadedFile()
 213         {
 214                 global $wgUploadDirectory, $wgOut, $wgRequest;
 215
 216                 $wgSavedFile = $_SESSION['wsUploadFiles'][$this->mSessionKey];
 217                 $wgUploadOldVersion = $this->mUploadOldVersion;
 218
 219                 if ( ! @unlink( $wgSavedFile ) ) {
 220                         $wgOut->fileDeleteError( $wgSavedFile );
 221                         return;
 222                 }
 223                 if ( "" != $wgUploadOldVersion ) {
 224                         $hash = md5( substr( $wgUploadOldVersion, 15 ) );
 225                         $archive = "{$wgUploadDirectory}/archive/" . $hash{0} .
 226                         "/" . substr( $hash, 0, 2 );
 227
 228                         if ( ! rename( "{$archive}/{$wgUploadOldVersion}", $wgSavedFile ) ) {
 229                                 $wgOut->fileRenameError( "{$archive}/{$wgUploadOldVersion}",
 230                                   $wgSavedFile );
 231                         }
 232                 }
 233         }
 234
 235         function uploadError( $error )
 236         {
 237                 global $wgOut;
 238                 $sub = wfMsg( "uploadwarning" );
 239                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 240                 $wgOut->addHTML( "<h4><font color=red>{$error}</font></h4>\n" );
 241         }
 242
 243         function uploadWarning( $warning )
 244         {
 245                 global $wgOut, $wgUser, $wgLang, $wgUploadDirectory, $wgRequest;
 246                 global $wgSavedFile, $wgUploadOldVersion;
 247                 global $wgUseCopyrightUpload;
 248
 249                 # wgSavedFile is stored in the session not the form, for security
 250                 $this->mSessionKey = mt_rand( 0, 0x7fffffff );
 251                 $_SESSION['wsUploadFiles'][$this->mSessionKey] = $wgSavedFile;
 252
 253                 $sub = wfMsg( "uploadwarning" );
 254                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 255                 $wgOut->addHTML( "<ul class='warning'>{$warning}</ul><br/>\n" );
 256
 257                 $save = wfMsg( "savefile" );
 258                 $reupload = wfMsg( "reupload" );
 259                 $iw = wfMsg( "ignorewarning" );
 260                 $reup = wfMsg( "reuploaddesc" );
 261                 $titleObj = Title::makeTitle( NS_SPECIAL, "Upload" );
 262                 $action = $titleObj->escapeLocalURL( "action=submit" );
 263
 264                 if ( $wgUseCopyrightUpload )
 265                 {
 266                         $copyright =  "
 267         <input type=hidden name=\"wpUploadCopyStatus\" value=\"" . htmlspecialchars( $this->mUploadCopyStatus ) . "\">
 268         <input type=hidden name=\"wpUploadSource\" value=\"" . htmlspecialchars( $this->mUploadSource ) . "\">
 269         ";
 270                 } else {
 271                         $copyright = "";
 272                 }
 273
 274                 $wgOut->addHTML( "
 275         <form id=\"uploadwarning\" method=\"post\" enctype=\"multipart/form-data\"
 276         action=\"{$action}\">
 277         <input type=hidden name=\"wpUploadAffirm\" value=\"1\">
 278         <input type=hidden name=\"wpIgnoreWarning\" value=\"1\">
 279         <input type=hidden name=\"wpUploadDescription\" value=\"" . htmlspecialchars( $this->mUploadDescription ) . "\">
 280         {$copyright}
 281         <input type=hidden name=\"wpUploadSaveName\" value=\"" . htmlspecialchars( $this->mUploadSaveName ) . "\">
 282         <input type=hidden name=\"wpUploadTempName\" value=\"" . htmlspecialchars( $this->mUploadTempName ) . "\">
 283         <input type=hidden name=\"wpUploadSize\" value=\"" . htmlspecialchars( $this->mUploadSize ) . "\">
 284         <input type=hidden name=\"wpSessionKey\" value=\"" . htmlspecialchars( $this->mSessionKey ) . "\">
 285         <input type=hidden name=\"wpUploadOldVersion\" value=\"" . htmlspecialchars( $wgUploadOldVersion) . "\">
 286         <table border=0><tr>
 287         <tr><td align=right>
 288         <input tabindex=2 type=submit name=\"wpUpload\" value=\"{$save}\">
 289         </td><td align=left>{$iw}</td></tr>
 290         <tr><td align=right>
 291         <input tabindex=2 type=submit name=\"wpReUpload\" value=\"{$reupload}\">
 292         </td><td align=left>{$reup}</td></tr></table></form>\n" );
 293         }
 294
 295         function mainUploadForm( $msg )
 296         {
 297                 global $wgOut, $wgUser, $wgLang, $wgUploadDirectory, $wgRequest;
 298                 global $wgUseCopyrightUpload;
 299
 300                 if ( "" != $msg ) {
 301                         $sub = wfMsg( "uploaderror" );
 302                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" .
 303                           "<h4><font color=red>{$msg}</font></h4>\n" );
 304                 } else {
 305                         $sub = wfMsg( "uploadfile" );
 306                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 307                 }
 308                 $wgOut->addHTML( "<p>" . wfMsg( "uploadtext" ) );
 309                 $sk = $wgUser->getSkin();
 310
 311                 $fn = wfMsg( "filename" );
 312                 $fd = wfMsg( "filedesc" );
 313                 $ulb = wfMsg( "uploadbtn" );
 314
 315                 $clink = $sk->makeKnownLink( wfMsg( "copyrightpage" ),
 316                   wfMsg( "copyrightpagename" ) );
 317                 $ca = wfMsg( "affirmation", $clink );
 318                 $iw = wfMsg( "ignorewarning" );
 319
 320                 $titleObj = Title::makeTitle( NS_SPECIAL, "Upload" );
 321                 $action = $titleObj->escapeLocalURL();
 322
 323                 $source = "
 324         <td align=right>
 325         <input tabindex=3 type=checkbox name=\"wpUploadAffirm\" value=\"1\" id=\"wpUploadAffirm\">
 326         </td><td align=left><label for=\"wpUploadAffirm\">{$ca}</label></td>
 327         " ;
 328                 if ( $wgUseCopyrightUpload )
 329                   {
 330                         $source = "
 331         <td align=right nowrap>" . wfMsg ( "filestatus" ) . ":</td>
 332         <td><input tabindex=3 type=text name=\"wpUploadCopyStatus\" value=\"" .
 333         htmlspecialchars($this->mUploadCopyStatus). "\" size=40></td>
 334         </tr><tr>
 335         <td align=right>". wfMsg ( "filesource" ) . ":</td>
 336         <td><input tabindex=4 type=text name=\"wpUploadSource\" value=\"" .
 337         htmlspecialchars($this->mUploadSource). "\" size=40></td>
 338         " ;
 339                   }
 340
 341                 $wgOut->addHTML( "
 342         <form id=\"upload\" method=\"post\" enctype=\"multipart/form-data\"
 343         action=\"{$action}\">
 344         <table border=0><tr>
 345         <td align=right>{$fn}:</td><td align=left>
 346         <input tabindex=1 type=file name=\"wpUploadFile\" value=\""
 347           . htmlspecialchars( $this->mUploadFile ) . "\" size=40>
 348         </td></tr><tr>
 349         <td align=right>{$fd}:</td><td align=left>
 350         <input tabindex=2 type=text name=\"wpUploadDescription\" value=\""
 351           . htmlspecialchars( $this->mUploadDescription ) . "\" size=40>
 352         </td></tr><tr>
 353         {$source}
 354         </tr>
 355         <tr><td>&nbsp;</td><td align=left>
 356         <input tabindex=5 type=submit name=\"wpUpload\" value=\"{$ulb}\">
 357         </td></tr></table></form>\n" );
 358         }
 359 }
 360 ?>