Initial Commit

TomcatServer/TCMPortMapper/Helpers/Utility.cs

@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Net;
+using Yaulw.Registry;
+
+namespace TCMPortMapper.Helpers
+{
+    public static class Utility
+    {
+        /// <summary>
+        /// This function uses a Web request to find the external IP Address your machine is using
+        /// </summary>
+        /// <param name="pTimeOutMiliSeconds">Number of miliseconds to wait for a response</param>
+        /// <param name="forceMultipleChecks">Tells if we should attempt to get the external ip in multiple tries</param>
+        /// <returns>External facing IP address</returns>
+        public static string GetExternalIP(int pTimeOutMiliSeconds, bool forceMultipleChecks)
+        {
+            var externalIP = Yaulw.Net.IPHostHelper.GetExternalIP(forceMultipleChecks);
+            if (externalIP == null || externalIP == IPAddress.None)
+                return string.Empty;
+
+            return externalIP.ToString();
+        }
+
+        /// <summary>
+        /// This function uses a Web request to find the external IP Address your machine is using
+        /// </summary>
+        /// <param name="pTimeOutMiliSeconds">Number of miliseconds to wait for a response</param>
+        /// <returns>External facing IP address</returns>
+        public static string GetExternalIP(int pTimeOutMiliSeconds)
+        {
+            string whatIsMyIp = "http://automation.whatismyip.com/n09230945.asp";
+            WebClient wc = new WebClient();
+            UTF8Encoding utf8 = new UTF8Encoding();
+            try
+            {
+                string ipaddr = null;
+                bool done = false;
+
+                wc.DownloadDataCompleted += new
+                DownloadDataCompletedEventHandler((object sender,
+                           DownloadDataCompletedEventArgs e) =>
+                {
+                    ipaddr = utf8.GetString(e.Result);
+                    done = true;
+                });
+
+                wc.DownloadDataAsync(new Uri(whatIsMyIp));
+                System.DateTime startTime = System.DateTime.Now;
+                while (!done)
+                {
+                    System.TimeSpan sp = System.DateTime.Now - startTime;
+
+                    // We should get a response in less than timeout.
+                    // If not, we cancel all and return the internal IP Address
+                    if (sp.TotalMilliseconds > pTimeOutMiliSeconds)
+                    {
+                        done = true;
+                        wc.CancelAsync();
+                    }
+                }
+                return ipaddr;
+            }
+            catch
+            {
+                return null;
+            }
+            finally
+            {
+                if (wc != null)
+                {
+                    wc.Dispose();
+                    wc = null;
+                }
+            }
+        }
+    }
+}