101 lines
3.1 KiB
C#
101 lines
3.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.NetworkInformation;
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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 FileSend
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{
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internal class Helper
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{
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/// <summary>
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/// 匹配IP地址是否合法
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/// </summary>
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/// <param name="ip">当前需要匹配的IP地址</param>
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/// <returns>true:表示合法</returns>
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public static bool MatchIP(string ip)
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{
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bool success = false;
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if (!string.IsNullOrEmpty(ip))
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{
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//判断是否为IP
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success = Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$");
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}
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return success;
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}
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/// <summary>
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/// 匹配端口是否合法
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/// </summary>
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/// <param name="port"></param>
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/// <returns>true：表示合法</returns>
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public static bool MatchPort(int port)
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{
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bool success = false;
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if (port >= 0 && port <= 65535)
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{
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success = true;
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}
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return success;
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}
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/// <summary>
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/// 检查IP是否可ping通
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/// </summary>
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/// <param name="strIP">要检查的IP</param>
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/// <returns>是否可连通【true:表示可以连通】</returns>
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public static bool CheckIPIsPing(string strIP)
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{
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if (!string.IsNullOrEmpty(strIP))
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{
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if (!MatchIP(strIP))
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{
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return false;
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}
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// Windows L2TP VPN和非Windows VPN使用ping VPN服务端的方式获取是否可以连通
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Ping pingSender = new Ping();
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PingOptions options = new PingOptions();
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// 使用默认的128位值
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options.DontFragment = true;
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//创建一个32字节的缓存数据发送进行ping
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string data = "testtesttesttesttesttesttesttest";
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byte[] buffer = Encoding.ASCII.GetBytes(data);
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int timeout = 120;
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PingReply reply = pingSender.Send(strIP, timeout, buffer, options);
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return (reply.Status == IPStatus.Success);
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 连续几次查看是否某个IP可以PING通
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/// </summary>
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/// <param name="strIP">ping的IP地址</param>
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/// <param name="waitMilliSecond">每次间隔时间，单位：毫秒</param>
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/// <param name="testNumber">测试次数</param>
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/// <returns>是否可以连通【true:表示可以连通】</returns>
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public static bool MutiCheckIPIsPing(string strIP, int waitMilliSecond, int testNumber)
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{
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for (int i = 0; i < testNumber - 1; i++)
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{
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if (CheckIPIsPing(strIP))
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{
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return true;
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}
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Thread.Sleep(waitMilliSecond);
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}
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return CheckIPIsPing(strIP);
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}
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}
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}
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