From 0d814efc43f845a49e3dfd6357991242dfb48b6f Mon Sep 17 00:00:00 2001
From: Stricted <info@stricted.de>
Date: Sat, 8 Aug 2015 07:48:06 +0200
Subject: [PATCH] update requirements

---
 README.md                 |  5 +++++
 SpeedportHybrid.class.php | 25 +++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/README.md b/README.md
index 5972666..c5a0abd 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,11 @@ known endpoints for getData() and sentRequest():
 PHP requirements
 ============= 
  * PHP >= 5.4.0
+ * PHP extension `hash`
+ * PHP extension `curl`
+ * PHP extension `json`
+ * PHP extension `pcre`
+ * PHP extension `ctype`
  * PHP extension `rrd` (optional, for rrd graphs)
 
 rrdtool integration
diff --git a/SpeedportHybrid.class.php b/SpeedportHybrid.class.php
index f8d6a0d..1ab6207 100644
--- a/SpeedportHybrid.class.php
+++ b/SpeedportHybrid.class.php
@@ -43,6 +43,31 @@ class SpeedportHybrid {
 	 */
 	public function __construct ($url = 'http://speedport.ip/') {
 		$this->url = $url;
+		$this->checkRequirements();
+	}
+	
+	/**
+	 * check php requirements
+	 */
+	private function checkRequirements () {
+		if (!extension_loaded('curl')) {
+			throw new Exception("The PHP Extension 'curl' is missing.");
+		}
+		else if (!extension_loaded('json')) {
+			throw new Exception("The PHP Extension 'json' is missing.");
+		}
+		else if (!extension_loaded('pcre')) {
+			throw new Exception("The PHP Extension 'pcre' is missing.");
+		}
+		else if (!extension_loaded('ctype')) {
+			throw new Exception("The PHP Extension 'ctype' is missing.");
+		}
+		else if (!extension_loaded('hash')) {
+			throw new Exception("The PHP Extension 'hash' is missing.");
+		}
+		else if (!in_array('sha256', hash_algos())) {
+			throw new Exception('SHA-256 algorithm is not Supported.');
+		}
 	}
 	
 	/**
-- 
2.20.1