diff --git a/lib/private/archive/tar.php b/lib/private/archive/tar.php
index 3f64b4c5064d0a0fadfdf7fd05169fe7e47bf7c7..31715c4778b53e7b2f1fb62b0cceef01c1432d48 100644
--- a/lib/private/archive/tar.php
+++ b/lib/private/archive/tar.php
@@ -8,10 +8,10 @@
 
 require_once OC::$THIRDPARTYROOT . '/3rdparty/Archive/Tar.php';
 
-class OC_Archive_TAR extends OC_Archive{
-	const PLAIN=0;
-	const GZIP=1;
-	const BZIP=2;
+class OC_Archive_TAR extends OC_Archive {
+	const PLAIN = 0;
+	const GZIP = 1;
+	const BZIP = 2;
 
 	private $fileList;
 	private $cachedHeaders;
@@ -19,27 +19,28 @@ class OC_Archive_TAR extends OC_Archive{
 	/**
 	 * @var Archive_Tar tar
 	 */
-	private $tar=null;
+	private $tar = null;
 	private $path;
 
 	/**
 	 * @param string $source
 	 */
 	function __construct($source) {
-		$types=array(null, 'gz', 'bz');
-		$this->path=$source;
-		$this->tar=new Archive_Tar($source, $types[self::getTarType($source)]);
+		$types = array(null, 'gz', 'bz');
+		$this->path = $source;
+		$this->tar = new Archive_Tar($source, $types[self::getTarType($source)]);
 	}
 
 	/**
 	 * try to detect the type of tar compression
+	 *
 	 * @param string $file
 	 * @return integer
 	 */
 	static public function getTarType($file) {
-		if(strpos($file, '.')) {
-			$extension=substr($file, strrpos($file, '.'));
-			switch($extension) {
+		if (strpos($file, '.')) {
+			$extension = substr($file, strrpos($file, '.'));
+			switch ($extension) {
 				case '.gz':
 				case '.tgz':
 					return self::GZIP;
@@ -51,79 +52,79 @@ class OC_Archive_TAR extends OC_Archive{
 				default:
 					return self::PLAIN;
 			}
-		}else{
+		} else {
 			return self::PLAIN;
 		}
 	}
 
 	/**
 	 * add an empty folder to the archive
+	 *
 	 * @param string $path
 	 * @return bool
 	 */
 	function addFolder($path) {
-		$tmpBase=OC_Helper::tmpFolder();
-		if(substr($path, -1, 1)!='/') {
-			$path.='/';
+		$tmpBase = OC_Helper::tmpFolder();
+		if (substr($path, -1, 1) != '/') {
+			$path .= '/';
 		}
-		if($this->fileExists($path)) {
+		if ($this->fileExists($path)) {
 			return false;
 		}
-		$parts=explode('/', $path);
-		$folder=$tmpBase;
-		foreach($parts as $part) {
-			$folder.='/'.$part;
-			if(!is_dir($folder)) {
+		$parts = explode('/', $path);
+		$folder = $tmpBase;
+		foreach ($parts as $part) {
+			$folder .= '/' . $part;
+			if (!is_dir($folder)) {
 				mkdir($folder);
 			}
 		}
-		$result=$this->tar->addModify(array($tmpBase.$path), '', $tmpBase);
-		rmdir($tmpBase.$path);
-		$this->fileList=false;
-		$this->cachedHeaders=false;
+		$result = $this->tar->addModify(array($tmpBase . $path), '', $tmpBase);
+		rmdir($tmpBase . $path);
+		$this->fileList = false;
+		$this->cachedHeaders = false;
 		return $result;
 	}
+
 	/**
 	 * add a file to the archive
+	 *
 	 * @param string $path
 	 * @param string $source either a local file or string data
 	 * @return bool
 	 */
-	function addFile($path, $source='') {
-		if($this->fileExists($path)) {
+	function addFile($path, $source = '') {
+		if ($this->fileExists($path)) {
 			$this->remove($path);
 		}
-		if($source and $source[0]=='/' and file_exists($source)) {
-			$header=array();
-			$dummy='';
-			$this->tar->_openAppend();
-			$result=$this->tar->_addfile($source, $header, $dummy, $dummy, $path);
-		}else{
-			$result=$this->tar->addString($path, $source);
+		if ($source and $source[0] == '/' and file_exists($source)) {
+			$source = file_get_contents($source);
 		}
-		$this->fileList=false;
-		$this->cachedHeaders=false;
+		$result = $this->tar->addString($path, $source);
+		$this->fileList = false;
+		$this->cachedHeaders = false;
 		return $result;
 	}
 
 	/**
 	 * rename a file or folder in the archive
+	 *
 	 * @param string $source
 	 * @param string $dest
 	 * @return bool
 	 */
 	function rename($source, $dest) {
 		//no proper way to delete, rename entire archive, rename file and remake archive
-		$tmp=OCP\Files::tmpFolder();
+		$tmp = OCP\Files::tmpFolder();
 		$this->tar->extract($tmp);
-		rename($tmp.$source, $tmp.$dest);
-		$this->tar=null;
+		rename($tmp . $source, $tmp . $dest);
+		$this->tar = null;
 		unlink($this->path);
-		$types=array(null, 'gz', 'bz');
-		$this->tar=new Archive_Tar($this->path, $types[self::getTarType($this->path)]);
-		$this->tar->createModify(array($tmp), '', $tmp.'/');
-		$this->fileList=false;
-		$this->cachedHeaders=false;
+		$types = array(null, 'gz', 'bz');
+		$this->tar = new Archive_Tar($this->path, $types[self::getTarType($this->path)]);
+		$this->tar->createModify(array($tmp), '', $tmp . '/');
+		$this->fileList = false;
+		$this->cachedHeaders = false;
 		return true;
 	}
 
@@ -131,14 +132,15 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string $file
 	 */
 	private function getHeader($file) {
-		if ( ! $this->cachedHeaders ) {
+		if (!$this->cachedHeaders) {
 			$this->cachedHeaders = $this->tar->listContent();
 		}
-		foreach($this->cachedHeaders as $header) {
-			if(        $file     == $header['filename']
-				or     $file.'/' == $header['filename']
-				or '/'.$file.'/' == $header['filename']
-				or '/'.$file     == $header['filename']) {
+		foreach ($this->cachedHeaders as $header) {
+			if ($file == $header['filename']
+				or $file . '/' == $header['filename']
+				or '/' . $file . '/' == $header['filename']
+				or '/' . $file == $header['filename']
+			) {
 				return $header;
 			}
 		}
@@ -147,186 +149,204 @@ class OC_Archive_TAR extends OC_Archive{
 
 	/**
 	 * get the uncompressed size of a file in the archive
+	 *
 	 * @param string $path
 	 * @return int
 	 */
 	function filesize($path) {
-		$stat=$this->getHeader($path);
+		$stat = $this->getHeader($path);
 		return $stat['size'];
 	}
+
 	/**
 	 * get the last modified time of a file in the archive
+	 *
 	 * @param string $path
 	 * @return int
 	 */
 	function mtime($path) {
-		$stat=$this->getHeader($path);
+		$stat = $this->getHeader($path);
 		return $stat['mtime'];
 	}
 
 	/**
 	 * get the files in a folder
+	 *
 	 * @param string $path
 	 * @return array
 	 */
 	function getFolder($path) {
-		$files=$this->getFiles();
-		$folderContent=array();
-		$pathLength=strlen($path);
-		foreach($files as $file) {
-			if($file[0]=='/') {
-				$file=substr($file, 1);
+		$files = $this->getFiles();
+		$folderContent = array();
+		$pathLength = strlen($path);
+		foreach ($files as $file) {
+			if ($file[0] == '/') {
+				$file = substr($file, 1);
 			}
-			if(substr($file, 0, $pathLength)==$path and $file!=$path) {
-				$result=substr($file, $pathLength);
-				if($pos=strpos($result, '/')) {
-					$result=substr($result, 0, $pos+1);
+			if (substr($file, 0, $pathLength) == $path and $file != $path) {
+				$result = substr($file, $pathLength);
+				if ($pos = strpos($result, '/')) {
+					$result = substr($result, 0, $pos + 1);
 				}
-				if(array_search($result, $folderContent)===false) {
-					$folderContent[]=$result;
+				if (array_search($result, $folderContent) === false) {
+					$folderContent[] = $result;
 				}
 			}
 		}
 		return $folderContent;
 	}
+
 	/**
 	 * get all files in the archive
+	 *
 	 * @return array
 	 */
 	function getFiles() {
-		if($this->fileList) {
+		if ($this->fileList) {
 			return $this->fileList;
 		}
-		if ( ! $this->cachedHeaders ) {
+		if (!$this->cachedHeaders) {
 			$this->cachedHeaders = $this->tar->listContent();
 		}
-		$files=array();
-		foreach($this->cachedHeaders as $header) {
-			$files[]=$header['filename'];
+		$files = array();
+		foreach ($this->cachedHeaders as $header) {
+			$files[] = $header['filename'];
 		}
-		$this->fileList=$files;
+		$this->fileList = $files;
 		return $files;
 	}
+
 	/**
 	 * get the content of a file
+	 *
 	 * @param string $path
 	 * @return string
 	 */
 	function getFile($path) {
 		return $this->tar->extractInString($path);
 	}
+
 	/**
 	 * extract a single file from the archive
+	 *
 	 * @param string $path
 	 * @param string $dest
 	 * @return bool
 	 */
 	function extractFile($path, $dest) {
-		$tmp=OCP\Files::tmpFolder();
-		if(!$this->fileExists($path)) {
+		$tmp = OCP\Files::tmpFolder();
+		if (!$this->fileExists($path)) {
 			return false;
 		}
-		if($this->fileExists('/'.$path)) {
-			$success=$this->tar->extractList(array('/'.$path), $tmp);
-		}else{
-			$success=$this->tar->extractList(array($path), $tmp);
+		if ($this->fileExists('/' . $path)) {
+			$success = $this->tar->extractList(array('/' . $path), $tmp);
+		} else {
+			$success = $this->tar->extractList(array($path), $tmp);
 		}
-		if($success) {
-			rename($tmp.$path, $dest);
+		if ($success) {
+			rename($tmp . $path, $dest);
 		}
 		OCP\Files::rmdirr($tmp);
 		return $success;
 	}
+
 	/**
 	 * extract the archive
+	 *
 	 * @param string $dest
 	 * @return bool
 	 */
 	function extract($dest) {
 		return $this->tar->extract($dest);
 	}
+
 	/**
 	 * check if a file or folder exists in the archive
+	 *
 	 * @param string $path
 	 * @return bool
 	 */
 	function fileExists($path) {
-		$files=$this->getFiles();
-		if((array_search($path, $files)!==false) or (array_search($path.'/', $files)!==false)) {
+		$files = $this->getFiles();
+		if ((array_search($path, $files) !== false) or (array_search($path . '/', $files) !== false)) {
 			return true;
-		}else{
-			$folderPath=$path;
-			if(substr($folderPath, -1, 1)!='/') {
-				$folderPath.='/';
+		} else {
+			$folderPath = $path;
+			if (substr($folderPath, -1, 1) != '/') {
+				$folderPath .= '/';
 			}
-			$pathLength=strlen($folderPath);
-			foreach($files as $file) {
-				if(strlen($file)>$pathLength and substr($file, 0, $pathLength)==$folderPath) {
+			$pathLength = strlen($folderPath);
+			foreach ($files as $file) {
+				if (strlen($file) > $pathLength and substr($file, 0, $pathLength) == $folderPath) {
 					return true;
 				}
 			}
 		}
-		if($path[0]!='/') {//not all programs agree on the use of a leading /
-			return $this->fileExists('/'.$path);
-		}else{
+		if ($path[0] != '/') { //not all programs agree on the use of a leading /
+			return $this->fileExists('/' . $path);
+		} else {
 			return false;
 		}
 	}
 
 	/**
 	 * remove a file or folder from the archive
+	 *
 	 * @param string $path
 	 * @return bool
 	 */
 	function remove($path) {
-		if(!$this->fileExists($path)) {
+		if (!$this->fileExists($path)) {
 			return false;
 		}
-		$this->fileList=false;
-		$this->cachedHeaders=false;
+		$this->fileList = false;
+		$this->cachedHeaders = false;
 		//no proper way to delete, extract entire archive, delete file and remake archive
-		$tmp=OCP\Files::tmpFolder();
+		$tmp = OCP\Files::tmpFolder();
 		$this->tar->extract($tmp);
-		OCP\Files::rmdirr($tmp.$path);
-		$this->tar=null;
+		OCP\Files::rmdirr($tmp . $path);
+		$this->tar = null;
 		unlink($this->path);
 		$this->reopen();
 		$this->tar->createModify(array($tmp), '', $tmp);
 		return true;
 	}
+
 	/**
 	 * get a file handler
+	 *
 	 * @param string $path
 	 * @param string $mode
 	 * @return resource
 	 */
 	function getStream($path, $mode) {
-		if(strrpos($path, '.')!==false) {
-			$ext=substr($path, strrpos($path, '.'));
-		}else{
-			$ext='';
+		if (strrpos($path, '.') !== false) {
+			$ext = substr($path, strrpos($path, '.'));
+		} else {
+			$ext = '';
 		}
-		$tmpFile=OCP\Files::tmpFile($ext);
-		if($this->fileExists($path)) {
+		$tmpFile = OCP\Files::tmpFile($ext);
+		if ($this->fileExists($path)) {
 			$this->extractFile($path, $tmpFile);
-		}elseif($mode=='r' or $mode=='rb') {
+		} elseif ($mode == 'r' or $mode == 'rb') {
 			return false;
 		}
-		if($mode=='r' or $mode=='rb') {
+		if ($mode == 'r' or $mode == 'rb') {
 			return fopen($tmpFile, $mode);
-		}else{
+		} else {
 			\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
-			self::$tempFiles[$tmpFile]=$path;
-			return fopen('close://'.$tmpFile, $mode);
+			self::$tempFiles[$tmpFile] = $path;
+			return fopen('close://' . $tmpFile, $mode);
 		}
 	}
 
-	private static $tempFiles=array();
+	private static $tempFiles = array();
+
 	/**
 	 * write back temporary files
 	 */
 	function writeBack($tmpFile) {
-		if(isset(self::$tempFiles[$tmpFile])) {
+		if (isset(self::$tempFiles[$tmpFile])) {
 			$this->addFile(self::$tempFiles[$tmpFile], $tmpFile);
 			unlink($tmpFile);
 		}
@@ -336,11 +356,11 @@ class OC_Archive_TAR extends OC_Archive{
 	 * reopen the archive to ensure everything is written
 	 */
 	private function reopen() {
-		if($this->tar) {
+		if ($this->tar) {
 			$this->tar->_close();
-			$this->tar=null;
+			$this->tar = null;
 		}
-		$types=array(null, 'gz', 'bz');
-		$this->tar=new Archive_Tar($this->path, $types[self::getTarType($this->path)]);
+		$types = array(null, 'gz', 'bz');
+		$this->tar = new Archive_Tar($this->path, $types[self::getTarType($this->path)]);
 	}
 }
diff --git a/tests/lib/archive/tar.php b/tests/lib/archive/tar.php
index e66a87408790590fccaeff81f8b6d95efbf01e04..db98bb4e9c266f3bd8f10204b870e72542522a1c 100644
--- a/tests/lib/archive/tar.php
+++ b/tests/lib/archive/tar.php
@@ -8,8 +8,14 @@
 
 require_once 'archive.php';
 
-if (!OC_Util::runningOnWindows()) {
 class Test_Archive_TAR extends Test_Archive {
+	public function setUp() {
+		if (OC_Util::runningOnWindows()) {
+			$this->markTestSkipped('tar archives are not supported on windows');
+		}
+		parent::setUp();
+	}
+
 	protected function getExisting() {
 		$dir = OC::$SERVERROOT . '/tests/data';
 		return new OC_Archive_TAR($dir . '/data.tar.gz');
@@ -19,4 +25,3 @@ class Test_Archive_TAR extends Test_Archive {
 		return new OC_Archive_TAR(OCP\Files::tmpFile('.tar.gz'));
 	}
 }
-}