more function reduction

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

lib/Froxlor/FileDir.php

@@ -318,6 +318,69 @@ class FileDir
 		return $destination;
 	}
 
+	/**
+	 * Returns an array of found directories
+	 *
+	 * This function checks every found directory if they match either $uid or $gid, if they do
+	 * the found directory is valid. It uses recursive-iterators to find subdirectories.
+	 *
+	 * @param string $path
+	 *        	the path to start searching in
+	 * @param int $uid
+	 *        	the uid which must match the found directories
+	 * @param int $gid
+	 *        	the gid which must match the found direcotries
+	 *        	
+	 * @return array Array of found valid paths
+	 */
+	public static function findDirs($path, $uid, $gid)
+	{
+		$_fileList = array();
+		$path = self::makeCorrectDir($path);
+
+		// valid directory?
+		if (is_dir($path)) {
+
+			// Will exclude everything under these directories
+			$exclude = array(
+				'awstats',
+				'webalizer'
+			);
+
+			/**
+			 *
+			 * @param SplFileInfo $file
+			 * @param mixed $key
+			 * @param RecursiveCallbackFilterIterator $iterator
+			 * @return bool True if you need to recurse or if the item is acceptable
+			 */
+			$filter = function ($file, $key, $iterator) use ($exclude) {
+				if (in_array($file->getFilename(), $exclude)) {
+					return false;
+				}
+				return true;
+			};
+
+			// create RecursiveIteratorIterator
+			$its = new \RecursiveIteratorIterator(new \RecursiveCallbackFilterIterator(new IgnorantRecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS), $filter));
+			// we can limit the recursion-depth, but will it be helpful or
+			// will people start asking "why do I only see 2 subdirectories, i want to use /a/b/c"
+			// let's keep this in mind and see whether it will be useful
+			// @TODO
+			// $its->setMaxDepth(2);
+
+			// check every file
+			foreach ($its as $fullFileName => $it) {
+				if ($it->isDir() && (fileowner($fullFileName) == $uid || filegroup($fullFileName) == $gid)) {
+					$_fileList[] = self::makeCorrectDir(dirname($fullFileName));
+				}
+			}
+			$_fileList[] = $path;
+		}
+
+		return array_unique($_fileList);
+	}
+
 	/**
 	 * check if the system is FreeBSD (if exact)
 	 * or BSD-based (NetBSD, OpenBSD, etc.
@@ -381,4 +444,23 @@ class FileDir
 			return 'chattr ' . (($remove === true) ? '-i ' : '+i ');
 		}
 	}
-}
+}
+
+/**
+ * If you use RecursiveDirectoryIterator with RecursiveIteratorIterator and run
+ * into UnexpectedValueException you may use this little hack to ignore those
+ * directories, such as lost+found on linux.
+ * (User "antennen" @ http://php.net/manual/en/class.recursivedirectoryiterator.php#101654)
+ */
+class IgnorantRecursiveDirectoryIterator extends \RecursiveDirectoryIterator
+{
+
+	function getChildren()
+	{
+		try {
+			return new IgnorantRecursiveDirectoryIterator($this->getPathname());
+		} catch (\UnexpectedValueException $e) {
+			return new \RecursiveArrayIterator(array());
+		}
+	}
+}