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<?php
/**
* @file
* @ingroup SpecialPage
*/
/**
* You will need the extension MogileClient to use this special page.
*/
require_once( 'MogileFS.php' );
/**
* Entry point
*/
function wfSpecialUploadMogile() {
global $wgRequest;
$form = new UploadFormMogile( $wgRequest );
$form->execute();
}
/**
* Extends Special:Upload with MogileFS.
* @ingroup SpecialPage
*/
class UploadFormMogile extends UploadForm {
/**
* Move the uploaded file from its temporary location to the final
* destination. If a previous version of the file exists, move
* it into the archive subdirectory.
*
* @todo If the later save fails, we may have disappeared the original file.
*
* @param string $saveName
* @param string $tempName full path to the temporary file
* @param bool $useRename Not used in this implementation
*/
function saveUploadedFile( $saveName, $tempName, $useRename = false ) {
global $wgOut;
$mfs = MogileFS::NewMogileFS();
$this->mSavedFile = "image!{$saveName}";
if( $mfs->getPaths( $this->mSavedFile )) {
$this->mUploadOldVersion = gmdate( 'YmdHis' ) . "!{$saveName}";
if( !$mfs->rename( $this->mSavedFile, "archive!{$this->mUploadOldVersion}" ) ) {
$wgOut->showFileRenameError( $this->mSavedFile,
"archive!{$this->mUploadOldVersion}" );
return false;
}
} else {
$this->mUploadOldVersion = '';
}
if ( $this->mStashed ) {
if (!$mfs->rename($tempName,$this->mSavedFile)) {
$wgOut->showFileRenameError($tempName, $this->mSavedFile );
return false;
}
} else {
if ( !$mfs->saveFile($this->mSavedFile,'normal',$tempName )) {
$wgOut->showFileCopyError( $tempName, $this->mSavedFile );
return false;
}
unlink($tempName);
}
return true;
}
/**
* Stash a file in a temporary directory for later processing
* after the user has confirmed it.
*
* If the user doesn't explicitly cancel or accept, these files
* can accumulate in the temp directory.
*
* @param string $saveName - the destination filename
* @param string $tempName - the source temporary file to save
* @return string - full path the stashed file, or false on failure
* @access private
*/
function saveTempUploadedFile( $saveName, $tempName ) {
global $wgOut;
$stash = 'stash!' . gmdate( "YmdHis" ) . '!' . $saveName;
$mfs = MogileFS::NewMogileFS();
if ( !$mfs->saveFile( $stash, 'normal', $tempName ) ) {
$wgOut->showFileCopyError( $tempName, $stash );
return false;
}
unlink($tempName);
return $stash;
}
/**
* Stash a file in a temporary directory for later processing,
* and save the necessary descriptive info into the session.
* Returns a key value which will be passed through a form
* to pick up the path info on a later invocation.
*
* @return int
* @access private
*/
function stashSession() {
$stash = $this->saveTempUploadedFile(
$this->mUploadSaveName, $this->mUploadTempName );
if( !$stash ) {
# Couldn't save the file.
return false;
}
$key = mt_rand( 0, 0x7fffffff );
$_SESSION['wsUploadData'][$key] = array(
'mUploadTempName' => $stash,
'mUploadSize' => $this->mUploadSize,
'mOname' => $this->mOname );
return $key;
}
/**
* Remove a temporarily kept file stashed by saveTempUploadedFile().
* @access private
* @return success
*/
function unsaveUploadedFile() {
global $wgOut;
$mfs = MogileFS::NewMogileFS();
if ( ! $mfs->delete( $this->mUploadTempName ) ) {
$wgOut->showFileDeleteError( $this->mUploadTempName );
return false;
} else {
return true;
}
}
}
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