[點晴永久免費OA]c# 實現(xiàn)端口轉(zhuǎn)發(fā)可以用來實現(xiàn)遠(yuǎn)程桌面連接內(nèi)網(wǎng)主機(jī)
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gYP.Start（）方法調(diào)用后填寫一臺公網(wǎng)主機(jī)ip和端口（11111）然后公網(wǎng)主機(jī)用lcx轉(zhuǎn)發(fā)11111到22222端口，遠(yuǎn)程桌面在公網(wǎng)主機(jī)連自己（127.0.0.1:22222）的22222端口就可以了可能需要點2次連接。
protected void wDZ(object sender, EventArgs e) { if (iXdh.Text == "" || eEpm.Text.Length < 7 || ZHS.Text == "") return; PortForward gYP = new PortForward(); gYP.Start(llH.Text, int.Parse(ZHS.Text), eEpm.Text, int.Parse(iXdh.Text)); } protected void vJNsE(object sender, EventArgs e) { PortForward gYP = new PortForward(); gYP.lyTOK(); } protected void tYoZ(object sender, EventArgs e) { } } public class PortForward { public string Localaddress; public int LocalPort; public string RemoteAddress; public int RemotePort; string type; Socket ltcpClient; Socket rtcpClient; Socket server; byte[] DPrPL = new byte[2048]; byte[] wvZv = new byte[2048]; public struct session { public Socket rdel; public Socket ldel; public int llen; public int rlen; } public static IPEndPoint mtJ(string host, int port) { IPEndPoint iep = null; IPHostEntry aGN = Dns.Resolve(host); IPAddress rmt = aGN.AddressList[0]; iep = new IPEndPoint(rmt, port); return iep; } public void Start(string Rip, int Rport, string lip, int lport) { try { LocalPort = lport; RemoteAddress = Rip; RemotePort = Rport; Localaddress = lip; rtcpClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); ltcpClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); rtcpClient.BeginConnect(mtJ(RemoteAddress, RemotePort), new AsyncCallback(iiGFO), rtcpClient); } catch (Exception ex) { } } protected void iiGFO(IAsyncResult ar) { try { session RKXy = new session(); RKXy.ldel = ltcpClient; RKXy.rdel = rtcpClient; ltcpClient.BeginConnect(mtJ(Localaddress, LocalPort), new AsyncCallback(VTp), RKXy); } catch (Exception ex) { } } protected void VTp(IAsyncResult ar) { try { session RKXy = (session)ar.AsyncState; ltcpClient.EndConnect(ar); RKXy.rdel.BeginReceive(DPrPL, 0, DPrPL.Length, SocketFlags.None, new AsyncCallback(LFYM), RKXy); RKXy.ldel.BeginReceive(wvZv, 0, wvZv.Length, SocketFlags.None, new AsyncCallback(xPS), RKXy); } catch (Exception ex) { } } private void LFYM(IAsyncResult ar) { try { session RKXy = (session)ar.AsyncState; int Ret = RKXy.rdel.EndReceive(ar); if (Ret > 0) ltcpClient.BeginSend(DPrPL, 0, Ret, SocketFlags.None, new AsyncCallback(JTcp), RKXy); else lyTOK(); } catch (Exception ex) { } } private void JTcp(IAsyncResult ar) { try { session RKXy = (session)ar.AsyncState; RKXy.ldel.EndSend(ar); RKXy.rdel.BeginReceive(DPrPL, 0, DPrPL.Length, SocketFlags.None, new AsyncCallback(this.LFYM), RKXy); } catch (Exception ex) { } } private void xPS(IAsyncResult ar) { try { session RKXy = (session)ar.AsyncState; int Ret = RKXy.ldel.EndReceive(ar); if (Ret > 0) RKXy.rdel.BeginSend(wvZv, 0, Ret, SocketFlags.None, new AsyncCallback(IZU), RKXy); else lyTOK(); } catch (Exception ex) { } } private void IZU(IAsyncResult ar) { try { session RKXy = (session)ar.AsyncState; RKXy.rdel.EndSend(ar); RKXy.ldel.BeginReceive(wvZv, 0, wvZv.Length, SocketFlags.None, new AsyncCallback(this.xPS), RKXy); } catch (Exception ex) { } } public void lyTOK() { try { if (ltcpClient != null) { ltcpClient.Close(); } if (rtcpClient != null) rtcpClient.Close(); } catch (Exception ex) { } } } } 該文章在 2019/6/27 11:53:18 編輯過 |
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