includes/SpecialUpload.php

   1 <?php
   2
   3 function wfSpecialUpload()
   4 {
   5         global $wgUser, $wgOut, $wpUpload, $wpReUpload, $action;
   6         global $wgDisableUploads;
   7
   8         $fields = array( "wpUploadFile", "wpUploadDescription" );
   9         wfCleanFormFields( $fields );
  10
  11     if ( $wgDisableUploads ) {
  12         $wgOut->addWikiText( wfMsg( "uploaddisabled" ) );
  13         return;
  14     }
  15         if ( ( 0 == $wgUser->getID() )
  16                 or $wgUser->isBlocked() ) {
  17                 $wgOut->errorpage( "uploadnologin", "uploadnologintext" );
  18                 return;
  19         }
  20         if ( wfReadOnly() ) {
  21                 $wgOut->readOnlyPage();
  22                 return;
  23         }
  24         if ( isset( $wpReUpload) ) {
  25                 unsaveUploadedFile();
  26                 mainUploadForm( "" );
  27         } else if ( "submit" == $action || isset( $wpUpload ) ) {
  28                 processUpload();
  29         } else {
  30                 mainUploadForm( "" );
  31         }
  32 }
  33
  34 function processUpload()
  35 {
  36         global $wgUser, $wgOut, $wgLang, $wpUploadAffirm, $wpUploadFile;
  37         global $wpUploadDescription, $wpIgnoreWarning;
  38         global $HTTP_POST_FILES, $wgUploadDirectory;
  39         global $wpUploadSaveName, $wpUploadTempName, $wpUploadSize;
  40         global $wgSavedFile, $wgUploadOldVersion, $wpUploadOldVersion;
  41         global $wgUseCopyrightUpload , $wpUploadCopyStatus , $wpUploadSource ;
  42         global $wgCheckFileExtensions, $wgStrictFileExtensions;
  43         global $wgFileExtensions, $wgFileBlacklist;
  44
  45         if ( $wgUseCopyrightUpload ) {
  46                 $wpUploadAffirm = 1;
  47                 if ( trim ( $wpUploadCopyStatus ) == "" || trim ( $wpUploadSource ) == "" ) {
  48                         $wpUploadAffirm = 0;
  49                 }
  50         }
  51
  52         if ( 1 != $wpUploadAffirm ) {
  53                 mainUploadForm( WfMsg( "noaffirmation" ) );
  54                 return;
  55         }
  56         if ( ! $wpUploadTempName ) {
  57                 $wpUploadTempName = $HTTP_POST_FILES['wpUploadFile']['tmp_name'];
  58         }
  59         if ( ! $wpUploadSize ) {
  60                 $wpUploadSize = $HTTP_POST_FILES['wpUploadFile']['size'];
  61         }
  62         $prev = error_reporting( E_ALL & ~( E_NOTICE | E_WARNING ) );
  63         $oname = wfCleanQueryVar( $HTTP_POST_FILES['wpUploadFile']['name'] );
  64         if ( $wpUploadSaveName != "" ) $wpUploadSaveName = wfCleanQueryVar( $wpUploadSaveName );
  65         error_reporting( $prev );
  66
  67         if ( "" != $oname ) {
  68                 $basename = strrchr( $oname, "/" );
  69                 if ( false === $basename ) { $basename = $oname; }
  70                 else ( $basename = substr( $basename, 1 ) );
  71
  72                 $ext = strrchr( $basename, "." );
  73                 if ( false === $ext ) { $ext = ""; }
  74                 else { $ext = substr( $ext, 1 ); }
  75
  76                 if ( "" == $ext ) { $xl = 0; } else { $xl = strlen( $ext ) + 1; }
  77                 $partname = substr( $basename, 0, strlen( $basename ) - $xl );
  78
  79                 if ( strlen( $partname ) < 3 ) {
  80                         mainUploadForm( WfMsg( "minlength" ) );
  81                         return;
  82                 }
  83                 $nt = Title::newFromText( $basename );
  84                 $wpUploadSaveName = $nt->getDBkey();
  85
  86                 /* Don't allow users to override the blacklist */
  87                 if( checkFileExtension( $ext, $wgFileBlacklist ) ||
  88                         ($wgStrictFileExtensions && !checkFileExtension( $ext, $wgFileExtensions ) ) ) {
  89                         return uploadError( wfMsg( "badfiletype", $ext ) );
  90                 }
  91
  92                 saveUploadedFile();
  93                 if ( ( ! $wpIgnoreWarning ) &&
  94                   ( 0 != strcmp( ucfirst( $basename ), $wpUploadSaveName ) ) ) {
  95                         return uploadWarning( wfMsg( "badfilename", $wpUploadSaveName ) );
  96                 }
  97
  98                 if ( $wgCheckFileExtensions ) {
  99                         if ( ( ! $wpIgnoreWarning ) &&
 100                                  ( ! checkFileExtension( $ext, $wgFileExtensions ) ) ) {
 101                                 return uploadWarning( wfMsg( "badfiletype", $ext ) );
 102                         }
 103                 }
 104                 if ( ( ! $wpIgnoreWarning ) && ( $wpUploadSize > 150000 ) ) {
 105                         return uploadWarning( WfMsg( "largefile" ) );
 106                 }
 107         }
 108         if ( isset( $wpUploadOldVersion ) ) {
 109                 $wgUploadOldVersion = $wpUploadOldVersion;
 110         }
 111         wfRecordUpload( $wpUploadSaveName, $wgUploadOldVersion,
 112           $wpUploadSize, $wpUploadDescription );
 113
 114         $sk = $wgUser->getSkin();
 115         $ilink = $sk->makeMediaLink( $wpUploadSaveName, wfImageUrl(
 116           $wpUploadSaveName ) );
 117         $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$wpUploadSaveName}";
 118         $dlink = $sk->makeKnownLink( $dname, $dname );
 119
 120         $wgOut->addHTML( "<h2>" . wfMsg( "successfulupload" ) . "</h2>\n" );
 121         $text = wfMsg( "fileuploaded", $ilink, $dlink );
 122         $wgOut->addHTML( "<p>{$text}\n" );
 123         $wgOut->returnToMain( false );
 124 }
 125
 126 function checkFileExtension( $ext, $list ) {
 127         return in_array( strtolower( $ext ), $list );
 128 }
 129
 130 function saveUploadedFile()
 131 {
 132         global $wpUploadSaveName, $wpUploadTempName;
 133         global $wgSavedFile, $wgUploadOldVersion;
 134         global $wgUploadDirectory, $wgOut;
 135
 136         $dest = wfImageDir( $wpUploadSaveName );
 137         $archive = wfImageArchiveDir( $wpUploadSaveName );
 138         $wgSavedFile = "{$dest}/{$wpUploadSaveName}";
 139
 140         if ( is_file( $wgSavedFile ) ) {
 141                 $wgUploadOldVersion = gmdate( "YmdHis" ) . "!{$wpUploadSaveName}";
 142
 143                 if ( ! rename( $wgSavedFile, "${archive}/{$wgUploadOldVersion}" ) ) {
 144                         $wgOut->fileRenameError( $wgSavedFile,
 145                           "${archive}/{$wgUploadOldVersion}" );
 146                         return;
 147                 }
 148         } else {
 149                 $wgUploadOldVersion = "";
 150         }
 151         if ( ! move_uploaded_file( $wpUploadTempName, $wgSavedFile ) ) {
 152                 $wgOut->fileCopyError( $wpUploadTempName, $wgSavedFile );
 153         }
 154         chmod( $wgSavedFile, 0644 );
 155 }
 156
 157 function unsaveUploadedFile()
 158 {
 159         global $wpSessionKey, $wpUploadOldVersion;
 160         global $wgUploadDirectory, $wgOut, $wsUploadFiles;
 161
 162         $wgSavedFile = $wsUploadFiles[$wpSessionKey];
 163         $wgUploadOldVersion = $wpUploadOldVersion;
 164
 165         if ( ! @unlink( $wgSavedFile ) ) {
 166                 $wgOut->fileDeleteError( $wgSavedFile );
 167                 return;
 168         }
 169         if ( "" != $wgUploadOldVersion ) {
 170                 $hash = md5( substr( $wgUploadOldVersion, 15 ) );
 171                 $archive = "{$wgUploadDirectory}/archive/" . $hash{0} .
 172                 "/" . substr( $hash, 0, 2 );
 173
 174                 if ( ! rename( "{$archive}/{$wgUploadOldVersion}", $wgSavedFile ) ) {
 175                         $wgOut->fileRenameError( "{$archive}/{$wgUploadOldVersion}",
 176                           $wgSavedFile );
 177                 }
 178         }
 179 }
 180
 181 function uploadError( $error )
 182 {
 183         global $wgOut;
 184         $sub = wfMsg( "uploadwarning" );
 185         $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 186         $wgOut->addHTML( "<h4><font color=red>{$error}</font></h4>\n" );
 187 }
 188
 189 function uploadWarning( $warning )
 190 {
 191         global $wgOut, $wgUser, $wgLang, $wgUploadDirectory;
 192         global $wpUpload, $wpReUpload, $wpUploadAffirm, $wpUploadFile;
 193         global $wpUploadDescription, $wpIgnoreWarning;
 194         global $wpUploadSaveName, $wpUploadTempName, $wpUploadSize;
 195         global $wgSavedFile, $wgUploadOldVersion;
 196         global $wpSessionKey, $wpUploadOldVersion, $wsUploadFiles;
 197         global $wgUseCopyrightUpload , $wpUploadCopyStatus , $wpUploadSource ;
 198
 199         # wgSavedFile is stored in the session not the form, for security
 200         $wpSessionKey = mt_rand( 0, 0x7fffffff );
 201         $wsUploadFiles[$wpSessionKey] = $wgSavedFile;
 202
 203         $sub = wfMsg( "uploadwarning" );
 204         $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 205         $wgOut->addHTML( "<h4><font color=red>{$warning}</font></h4>\n" );
 206
 207         $save = wfMsg( "savefile" );
 208         $reupload = wfMsg( "reupload" );
 209         $iw = wfMsg( "ignorewarning" );
 210         $reup = wfMsg( "reuploaddesc" );
 211         $action = wfLocalUrlE( $wgLang->specialPage( "Upload" ),
 212           "action=submit" );
 213
 214         if ( $wgUseCopyrightUpload )
 215         {
 216                 $copyright =  "
 217 <input type=hidden name=\"wpUploadCopyStatus\" value=\"" . htmlspecialchars( $wpUploadCopyStatus ) . "\">
 218 <input type=hidden name=\"wpUploadSource\" value=\"" . htmlspecialchars( $wpUploadSource ) . "\">
 219 ";
 220         }
 221
 222         $wgOut->addHTML( "
 223 <form id=\"uploadwarning\" method=\"post\" enctype=\"multipart/form-data\"
 224 action=\"{$action}\">
 225 <input type=hidden name=\"wpUploadAffirm\" value=\"1\">
 226 <input type=hidden name=\"wpIgnoreWarning\" value=\"1\">
 227 <input type=hidden name=\"wpUploadDescription\" value=\"" . htmlspecialchars( $wpUploadDescription ) . "\">
 228 {$copyright}
 229 <input type=hidden name=\"wpUploadSaveName\" value=\"" . htmlspecialchars( $wpUploadSaveName ) . "\">
 230 <input type=hidden name=\"wpUploadTempName\" value=\"" . htmlspecialchars( $wpUploadTempName ) . "\">
 231 <input type=hidden name=\"wpUploadSize\" value=\"" . htmlspecialchars( $wpUploadSize ) . "\">
 232 <input type=hidden name=\"wpSessionKey\" value=\"" . htmlspecialchars( $wpSessionKey ) . "\">
 233 <input type=hidden name=\"wpUploadOldVersion\" value=\"" . htmlspecialchars( $wgUploadOldVersion) . "\">
 234 <table border=0><tr>
 235 <tr><td align=right>
 236 <input tabindex=2 type=submit name=\"wpUpload\" value=\"{$save}\">
 237 </td><td align=left>{$iw}</td></tr>
 238 <tr><td align=right>
 239 <input tabindex=2 type=submit name=\"wpReUpload\" value=\"{$reupload}\">
 240 </td><td align=left>{$reup}</td></tr></table></form>\n" );
 241 }
 242
 243 function mainUploadForm( $msg )
 244 {
 245         global $wgOut, $wgUser, $wgLang, $wgUploadDirectory;
 246         global $wpUpload, $wpUploadAffirm, $wpUploadFile;
 247         global $wpUploadDescription, $wpIgnoreWarning;
 248         global $wgUseCopyrightUpload , $wpUploadSource , $wpUploadCopyStatus ;
 249
 250         if ( "" != $msg ) {
 251                 $sub = wfMsg( "uploaderror" );
 252                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" .
 253                   "<h4><font color=red>{$msg}</font></h4>\n" );
 254         } else {
 255                 $sub = wfMsg( "uploadfile" );
 256                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 257         }
 258         $wgOut->addHTML( "<p>" . wfMsg( "uploadtext" ) );
 259         $sk = $wgUser->getSkin();
 260
 261         $fn = wfMsg( "filename" );
 262         $fd = wfMsg( "filedesc" );
 263         $ulb = wfMsg( "uploadbtn" );
 264
 265         $clink = $sk->makeKnownLink( wfMsg( "copyrightpage" ),
 266           wfMsg( "copyrightpagename" ) );
 267         $ca = wfMsg( "affirmation", $clink );
 268         $iw = wfMsg( "ignorewarning" );
 269
 270         $action = wfLocalUrl( $wgLang->specialPage( "Upload" ) );
 271
 272         $source = "
 273 <td align=right>
 274 <input tabindex=3 type=checkbox name=\"wpUploadAffirm\" value=\"1\" id=\"wpUploadAffirm\">
 275 </td><td align=left><label for=\"wpUploadAffirm\">{$ca}</label></td>
 276 " ;
 277         if ( $wgUseCopyrightUpload )
 278           {
 279             $source = "
 280 <td align=right nowrap>" . wfMsg ( "filestatus" ) . ":</td>
 281 <td><input tabindex=3 type=text name=\"wpUploadCopyStatus\" value=\"" .
 282 htmlspecialchars($wpUploadCopyStatus). "\" size=40></td>
 283 </tr><tr>
 284 <td align=right>". wfMsg ( "filesource" ) . ":</td>
 285 <td><input tabindex=4 type=text name=\"wpUploadSource\" value=\"" .
 286 htmlspecialchars($wpUploadSource). "\" size=40></td>
 287 " ;
 288           }
 289
 290         $wgOut->addHTML( "
 291 <form id=\"upload\" method=\"post\" enctype=\"multipart/form-data\"
 292 action=\"{$action}\">
 293 <table border=0><tr>
 294 <td align=right>{$fn}:</td><td align=left>
 295 <input tabindex=1 type=file name=\"wpUploadFile\" value=\""
 296   . htmlspecialchars( $wpUploadFile ) . "\" size=40>
 297 </td></tr><tr>
 298 <td align=right>{$fd}:</td><td align=left>
 299 <input tabindex=2 type=text name=\"wpUploadDescription\" value=\""
 300   . htmlspecialchars( $wpUploadDescription ) . "\" size=40>
 301 </td></tr><tr>
 302 {$source}
 303 </tr>
 304 <tr><td>&nbsp;</td><td align=left>
 305 <input tabindex=5 type=submit name=\"wpUpload\" value=\"{$ulb}\">
 306 </td></tr></table></form>\n" );
 307 }
 308
 309 ?>