diff --git a/lib/private/files/storage/local.php b/lib/private/files/storage/local.php
index 1c5fafc12f..7b4abf08f4 100644
--- a/lib/private/files/storage/local.php
+++ b/lib/private/files/storage/local.php
@@ -35,7 +35,7 @@ if (\OC_Util::runningOnWindows()) {
 		}
 
 		public function mkdir($path) {
-			return @mkdir($this->datadir . $path, 0777, true);
+			return @mkdir($this->getSourcePath($path), 0777, true);
 		}
 
 		public function rmdir($path) {
@@ -44,7 +44,7 @@ if (\OC_Util::runningOnWindows()) {
 			}
 			try {
 				$it = new \RecursiveIteratorIterator(
-					new \RecursiveDirectoryIterator($this->datadir . $path),
+					new \RecursiveDirectoryIterator($this->getSourcePath($path)),
 					\RecursiveIteratorIterator::CHILD_FIRST
 				);
 				/**
@@ -68,30 +68,30 @@ if (\OC_Util::runningOnWindows()) {
 					}
 					$it->next();
 				}
-				return rmdir($this->datadir . $path);
+				return rmdir($this->getSourcePath($path));
 			} catch (\UnexpectedValueException $e) {
 				return false;
 			}
 		}
 
 		public function opendir($path) {
-			return opendir($this->datadir . $path);
+			return opendir($this->getSourcePath($path));
 		}
 
 		public function is_dir($path) {
 			if (substr($path, -1) == '/') {
 				$path = substr($path, 0, -1);
 			}
-			return is_dir($this->datadir . $path);
+			return is_dir($this->getSourcePath($path));
 		}
 
 		public function is_file($path) {
-			return is_file($this->datadir . $path);
+			return is_file($this->getSourcePath($path));
 		}
 
 		public function stat($path) {
 			clearstatcache();
-			$fullPath = $this->datadir . $path;
+			$fullPath = $this->getSourcePath($path);
 			$statResult = stat($fullPath);
 			if (PHP_INT_SIZE === 4 && !$this->is_dir($path)) {
 				$filesize = $this->filesize($path);
@@ -102,9 +102,9 @@ if (\OC_Util::runningOnWindows()) {
 		}
 
 		public function filetype($path) {
-			$filetype = filetype($this->datadir . $path);
+			$filetype = filetype($this->getSourcePath($path));
 			if ($filetype == 'link') {
-				$filetype = filetype(realpath($this->datadir . $path));
+				$filetype = filetype(realpath($this->getSourcePath($path)));
 			}
 			return $filetype;
 		}
@@ -113,7 +113,7 @@ if (\OC_Util::runningOnWindows()) {
 			if ($this->is_dir($path)) {
 				return 0;
 			}
-			$fullPath = $this->datadir . $path;
+			$fullPath = $this->getSourcePath($path);
 			if (PHP_INT_SIZE === 4) {
 				$helper = new \OC\LargeFileHelper;
 				return $helper->getFilesize($fullPath);
@@ -122,19 +122,19 @@ if (\OC_Util::runningOnWindows()) {
 		}
 
 		public function isReadable($path) {
-			return is_readable($this->datadir . $path);
+			return is_readable($this->getSourcePath($path));
 		}
 
 		public function isUpdatable($path) {
-			return is_writable($this->datadir . $path);
+			return is_writable($this->getSourcePath($path));
 		}
 
 		public function file_exists($path) {
-			return file_exists($this->datadir . $path);
+			return file_exists($this->getSourcePath($path));
 		}
 
 		public function filemtime($path) {
-			return filemtime($this->datadir . $path);
+			return filemtime($this->getSourcePath($path));
 		}
 
 		public function touch($path, $mtime = null) {
@@ -145,30 +145,30 @@ if (\OC_Util::runningOnWindows()) {
 				return false;
 			}
 			if (!is_null($mtime)) {
-				$result = touch($this->datadir . $path, $mtime);
+				$result = touch($this->getSourcePath($path), $mtime);
 			} else {
-				$result = touch($this->datadir . $path);
+				$result = touch($this->getSourcePath($path));
 			}
 			if ($result) {
-				clearstatcache(true, $this->datadir . $path);
+				clearstatcache(true, $this->getSourcePath($path));
 			}
 
 			return $result;
 		}
 
 		public function file_get_contents($path) {
-			return file_get_contents($this->datadir . $path);
+			return file_get_contents($this->getSourcePath($path));
 		}
 
-		public function file_put_contents($path, $data) { //trigger_error("$path = ".var_export($path, 1));
-			return file_put_contents($this->datadir . $path, $data);
+		public function file_put_contents($path, $data) {
+			return file_put_contents($this->getSourcePath($path), $data);
 		}
 
 		public function unlink($path) {
 			if ($this->is_dir($path)) {
 				return $this->rmdir($path);
 			} else if ($this->is_file($path)) {
-				return unlink($this->datadir . $path);
+				return unlink($this->getSourcePath($path));
 			} else {
 				return false;
 			}
@@ -200,27 +200,27 @@ if (\OC_Util::runningOnWindows()) {
 				$this->unlink($path2);
 			}
 
-			return rename($this->datadir . $path1, $this->datadir . $path2);
+			return rename($this->getSourcePath($path1), $this->getSourcePath($path2));
 		}
 
 		public function copy($path1, $path2) {
 			if ($this->is_dir($path1)) {
 				return parent::copy($path1, $path2);
 			} else {
-				return copy($this->datadir . $path1, $this->datadir . $path2);
+				return copy($this->getSourcePath($path1), $this->getSourcePath($path2));
 			}
 		}
 
 		public function fopen($path, $mode) {
-			return fopen($this->datadir . $path, $mode);
+			return fopen($this->getSourcePath($path), $mode);
 		}
 
 		public function hash($type, $path, $raw = false) {
-			return hash_file($type, $this->datadir . $path, $raw);
+			return hash_file($type, $this->getSourcePath($path), $raw);
 		}
 
 		public function free_space($path) {
-			$space = @disk_free_space($this->datadir . $path);
+			$space = @disk_free_space($this->getSourcePath($path));
 			if ($space === false || is_null($space)) {
 				return \OCP\Files\FileInfo::SPACE_UNKNOWN;
 			}
@@ -232,11 +232,11 @@ if (\OC_Util::runningOnWindows()) {
 		}
 
 		public function getLocalFile($path) {
-			return $this->datadir . $path;
+			return $this->getSourcePath($path);
 		}
 
 		public function getLocalFolder($path) {
-			return $this->datadir . $path;
+			return $this->getSourcePath($path);
 		}
 
 		/**
@@ -244,12 +244,16 @@ if (\OC_Util::runningOnWindows()) {
 		 */
 		protected function searchInDir($query, $dir = '') {
 			$files = array();
-			foreach (scandir($this->datadir . $dir) as $item) {
-				if ($item == '.' || $item == '..') continue;
+			$physicalDir = $this->getSourcePath($dir);
+			foreach (scandir($physicalDir) as $item) {
+				if ($item == '.' || $item == '..')
+					continue;
+				$physicalItem = $physicalDir . '/' . $item;
+
 				if (strstr(strtolower($item), strtolower($query)) !== false) {
 					$files[] = $dir . '/' . $item;
 				}
-				if (is_dir($this->datadir . $dir . '/' . $item)) {
+				if (is_dir($physicalItem)) {
 					$files = array_merge($files, $this->searchInDir($query, $dir . '/' . $item));
 				}
 			}
@@ -271,6 +275,17 @@ if (\OC_Util::runningOnWindows()) {
 			}
 		}
 
+		/**
+		 * Get the source path (on disk) of a given path
+		 *
+		 * @param string $path
+		 * @return string
+		 */
+		protected function getSourcePath($path) {
+			$fullPath = $this->datadir . $path;
+			return $fullPath;
+		}
+
 		/**
 		 * {@inheritdoc}
 		 */