83 lines
2.5 KiB
C#
83 lines
2.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Net;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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namespace SafeMobileLib
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{
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public class IP_Helpers
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{
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public static string GetInterface(string IPstr)
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{
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string strInterface = "";
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try
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{
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string[] arrStr = IPstr.Split('.');
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int lastPartOfIP = Convert.ToInt32(arrStr[3]);
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arrStr[3] = (lastPartOfIP + 1).ToString();
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strInterface = arrStr[0] + "." + arrStr[1] + "." + arrStr[2] + "." + arrStr[3];
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}
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catch (Exception ex)
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{
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Console.WriteLine("Error GEtting interface");
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Console.WriteLine(ex.ToString());
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}
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return strInterface;
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}
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public static string GetReverse_Interface(string IPstr)
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{
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string strInterface = "";
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try
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{
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string[] arrStr = IPstr.Split('.');
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int lastPartOfIP = Convert.ToInt32(arrStr[3]);
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arrStr[3] = (lastPartOfIP - 1).ToString();
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strInterface = arrStr[0] + "." + arrStr[1] + "." + arrStr[2] + "." + arrStr[3];
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}
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catch (Exception ex)
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{
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Console.WriteLine("Error GEtting interface");
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Console.WriteLine(ex.ToString());
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}
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return strInterface;
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}
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public static async Task<string> GetPublicIPAsync()
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{
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return await Task.Run(() => GetPublicIP());
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}
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public static string GetPublicIP()
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{
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string a4 = "";
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try
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{
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string url = "http://checkip.dyndns.org";
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System.Net.WebRequest req = System.Net.WebRequest.Create(url);
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System.Net.WebResponse resp = req.GetResponse();
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System.IO.StreamReader sr = new System.IO.StreamReader(resp.GetResponseStream());
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string response = sr.ReadToEnd().Trim();
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string[] a = response.Split(':');
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string a2 = a[1].Substring(1);
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string[] a3 = a2.Split('<');
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a4 = a3[0];
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if(a4 == "")
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a4 = new WebClient().DownloadString(@"http://icanhazip.com").Trim();
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}
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catch { a4 = new WebClient().DownloadString(@"http://icanhazip.com").Trim(); }
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return a4;
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}
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}
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}
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