1 files changed, 77 insertions, 0 deletions
diff --git a/lib/request.php b/lib/request.php
index 0b5aaf8ef30..3fe61fbddcd 100644
--- a/lib/request.php
+++ b/lib/request.php
@@ -7,6 +7,79 @@
  */
 
 class OC_Request {
+	/**
+	 * @brief Returns the server host
+	 * @returns the server host
+	 *
+	 * Returns the server host, even if the website uses one or more
+	 * reverse proxies
+	 */
+	public static function serverHost() {
+		if(OC::$CLI){
+			return 'localhost';
+		}
+		if (isset($_SERVER['HTTP_X_FORWARDED_HOST'])) {
+			if (strpos($_SERVER['HTTP_X_FORWARDED_HOST'], ",") !== false) {
+				$host = trim(array_pop(explode(",", $_SERVER['HTTP_X_FORWARDED_HOST'])));
+			}
+			else{
+				$host=$_SERVER['HTTP_X_FORWARDED_HOST'];
+			}
+		}
+		else{
+			$host = $_SERVER['HTTP_HOST'];
+		}
+		return $host;
+	}
+
+
+	/**
+	* @brief Returns the server protocol
+	* @returns the server protocol
+	*
+	* Returns the server protocol. It respects reverse proxy servers and load balancers
+	*/
+	public static function serverProtocol() {
+		if (isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) {
+			$proto = strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']);
+		}else{
+			if(isset($_SERVER['HTTPS']) and !empty($_SERVER['HTTPS']) and ($_SERVER['HTTPS']!='off')) {
+				$proto = 'https';
+			}else{
+				$proto = 'http';
+			}
+		}
+		return($proto);
+	}
+
+	/**
+	 * @brief get Path info from request
+	 * @returns string Path info or false when not found
+	 */
+	public static function getPathInfo() {
+		if (array_key_exists('PATH_INFO', $_SERVER)){
+			$path_info = $_SERVER['PATH_INFO'];
+		}else{
+			$path_info = substr($_SERVER['REQUEST_URI'], strlen($_SERVER['SCRIPT_NAME']));
+			// following is taken from Sabre_DAV_URLUtil::decodePathSegment
+			$path_info = rawurldecode($path_info);
+			$encoding = mb_detect_encoding($path_info, array('UTF-8','ISO-8859-1'));
+
+			switch($encoding) {
+
+			    case 'ISO-8859-1' :
+				$path_info = utf8_encode($path_info);
+
+			}
+			// end copy
+		}
+		return $path_info;
+	}
+
+	/**
+	 * @brief Check if this is a no-cache request
+	 * @returns true for no-cache
+	 */
 	static public function isNoCache() {
 		if (!isset($_SERVER['HTTP_CACHE_CONTROL'])) {
 			return false;
@@ -14,6 +87,10 @@ class OC_Request {
 		return $_SERVER['HTTP_CACHE_CONTROL'] == 'no-cache';
 	}
 
+	/**
+	 * @brief Check if the requestor understands gzip
+	 * @returns true for gzip encoding supported
+	 */
 	static public function acceptGZip() {
 		if (!isset($_SERVER['HTTP_ACCEPT_ENCODING'])) {
 			return false;