temp folder and write permissions methods

application/core/Files/FileUtil.php

@@ -7,16 +7,20 @@ use ManiaControl\Formatter;
 
 /**
  * Files Utility Class
- *
+ * 
  * @author steeffeen & kremsy
  * @copyright ManiaControl Copyright © 2014 ManiaControl Team
  * @license http://www.gnu.org/licenses/ GNU General Public License, Version 3
  */
 abstract class FileUtil {
+	/*
+	 * Constants
+	 */
+	const FOLDER_NAME_TEMP = '/temp/';
 
 	/**
 	 * Load a remote file
-	 *
+	 * 
 	 * @param string $url
 	 * @param string $contentType
 	 * @return string || null
@@ -25,48 +29,48 @@ abstract class FileUtil {
 		if (!$url) {
 			return null;
 		}
-		$urlData  = parse_url($url);
+		$urlData = parse_url($url);
-		$port     = (isset($urlData['port']) ? $urlData['port'] : 80);
+		$port = (isset($urlData['port']) ? $urlData['port'] : 80);
 		$urlQuery = isset($urlData['query']) ? "?" . $urlData['query'] : "";
-
+		
 		$fsock = fsockopen($urlData['host'], $port);
 		stream_set_timeout($fsock, 3);
-
+		
 		$query = 'GET ' . $urlData['path'] . $urlQuery . ' HTTP/1.0' . PHP_EOL;
 		$query .= 'Host: ' . $urlData['host'] . PHP_EOL;
 		$query .= 'Content-Type: ' . $contentType . PHP_EOL;
 		$query .= 'User-Agent: ManiaControl v' . ManiaControl::VERSION . PHP_EOL;
 		$query .= PHP_EOL;
-
+		
 		fwrite($fsock, $query);
-
+		
 		$buffer = '';
-		$info   = array('timed_out' => false);
+		$info = array('timed_out' => false);
-		while(!feof($fsock) && !$info['timed_out']) {
+		while (!feof($fsock) && !$info['timed_out']) {
 			$buffer .= fread($fsock, 1024);
 			$info = stream_get_meta_data($fsock);
 		}
 		fclose($fsock);
-
+		
 		if ($info['timed_out'] || !$buffer) {
 			return null;
 		}
 		if (substr($buffer, 9, 3) != "200") {
 			return null;
 		}
-
+		
 		$result = explode("\r\n\r\n", $buffer, 2);
-
+		
 		if (count($result) < 2) {
 			return null;
 		}
-
+		
 		return $result[1];
 	}
 
 	/**
 	 * Load config xml-file
-	 *
+	 * 
 	 * @param string $fileName
 	 * @return \SimpleXMLElement
 	 */
@@ -85,14 +89,66 @@ abstract class FileUtil {
 
 	/**
 	 * Return file name cleared from special characters
-	 *
+	 * 
 	 * @param string $fileName
 	 * @return string
 	 */
 	public static function getClearedFileName($fileName) {
 		$fileName = Formatter::stripCodes($fileName);
 		$fileName = str_replace(array('\\', '/', ':', '*', '?', '"', '<', '>', '|'), '_', $fileName);
-		$fileName = preg_replace( '/[^[:print:]]/', '', $fileName);
+		$fileName = preg_replace('/[^[:print:]]/', '', $fileName);
 		return $fileName;
 	}
+
+	/**
+	 * Get the Temporary Folder and create it if necessary
+	 * 
+	 * @param bool $createIfNecessary
+	 * @return string
+	 */
+	public static function getTempFolder($createIfNecessary = true) {
+		$tempFolder = ManiaControlDir . self::FOLDER_NAME_TEMP;
+		if ($createIfNecessary && !is_dir($tempFolder)) {
+			mkdir($tempFolder);
+		}
+		return $tempFolder;
+	}
+
+	/**
+	 * Delete the Temporary Folder if it's empty
+	 * 
+	 * @return bool
+	 */
+	public static function removeTempFolder() {
+		$tempFolder = self::getTempFolder(false);
+		return @rmdir($tempFolder);
+	}
+
+	/**
+	 * Check if ManiaControl has sufficient Access to write to Files in the given Directories
+	 * 
+	 * @param mixed $directories
+	 * @return bool
+	 */
+	public static function checkWritePermissions($directories) {
+		if (!is_array($directories)) {
+			$directories = array($directories);
+		}
+		
+		foreach ($directories as $directory) {
+			$dir = new \RecursiveDirectoryIterator(ManiaControlDir . $directory);
+			foreach (new \RecursiveIteratorIterator($dir) as $fileName => $file) {
+				if (substr($fileName, 0, 1) === '.') {
+					continue;
+				}
+				if (!is_writable($fileName)) {
+					$message = "Write-Access missing for File '{$fileName}'!";
+					$this->maniaControl->log($message);
+					return false;
+				}
+			}
+		}
+		
+		return true;
+	}
 }