From 9c5bfc5430ac353fe5d4be620f73ea6de24f7110 Mon Sep 17 00:00:00 2001
From: flavien <flavien.haas@outlook.fr>
Date: Mon, 23 Mar 2020 18:07:26 +0100
Subject: [PATCH] added a method to test if hostnames are legitimate

---
 src/tools/TestLegitIP.java | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 src/tools/TestLegitIP.java

diff --git a/src/tools/TestLegitIP.java b/src/tools/TestLegitIP.java
new file mode 100644
index 0000000..aa271f3
--- /dev/null
+++ b/src/tools/TestLegitIP.java
@@ -0,0 +1,28 @@
+package tools;
+
+/** Test if IP are legitimate.
+ * @author	Louis Royer
+ * @author	Flavien Haas
+ * @author	JS Auge
+ * @version	1.0
+ */
+public class TestLegitIP {
+
+	public boolean TestIP(String hostname) {
+    if(hostname.equals("localhost")){
+      return true;
+    }
+    else{
+      String[] ipArray = hostname.split("\\.");
+      if(ipArray.length != 4){
+        return false;
+      }
+      for(int i= 0; i < ipArray.length; i++){
+        if((Integer.parseInt(ipArray[i]) > 255) || (Integer.parseInt(ipArray[i]) < 0)){
+          return false;
+        }
+      }
+    }
+    return true;
+	}
+}