使用socks4 socks5 http代理的客户端

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///定义的结构 struct sock4req1 { char VN; char CD; unsigned short Port; unsigned long IPAddr; char other[1]; };

struct sock4ans1 { char VN; char CD; };

struct sock5req1 { char Ver; char nMethods; char Methods[255]; };

struct sock5ans1 { char Ver; char Method; };

struct sock5req2 { char Ver; char Cmd; char Rsv; char Atyp; unsigned long IPAddr; unsigned short Port; // char other[1]; };

struct sock5ans2 { char Ver; char Rep; char Rsv; char Atyp; char other[1]; };

struct authreq { char Ver; char Ulen; char Name[255]; char PLen; char Pass[255]; };

struct authans { char Ver; char Status; };

/// ///代码片段 void CTestDlg::OnSocks4() { CString m_sError; ClientSock.Create();

//Socks4代理服务器端口及地址 //if( !ClientSock.Connect( “195.65.215.38”,1080) ) if( !ClientSock.Connect( “192.168.123.194”,1080) ) { m_sError = _T(“不能连接到代理服务器!”); ClientSock.Close(); MessageBox(m_sError); return ; }

char buff[100]; memset(buff,0,100); struct sock4req1 *m_proxyreq; m_proxyreq = (struct sock4req1 *)buff; m_proxyreq->VN = 4; m_proxyreq->CD = 1; m_proxyreq->Port = ntohs(21); m_proxyreq->IPAddr = inet_addr(“219.201.39.50”); strcpy(m_proxyreq->other , “”); ClientSock.Send(buff,9); struct sock4ans1 *m_proxyans; m_proxyans = (struct sock4ans1 *)buff; memset(buff,0,100); ClientSock.Receive(buff,100); if(m_proxyans->VN != 0 || m_proxyans->CD != 90) { m_sError = _T(“通过代理连接主站不成功!”); ClientSock.Close(); MessageBox(m_sError); return ; }

//连接已经建立,发送及接收数据 memset(buff,0,100); strcpy(buff,”Hello!”); ClientSock.Send(buff,sizeof(buff)); memset(buff,0,100); ClientSock.Receive(buff,100); MessageBox(buff); ClientSock.Close(); }

void CTestDlg::OnSocks5() { // TODO: Add your control notification handler code here //http://my.nbip.net/homepage/nblulei/ttdl/sockdllb.htm CString m_sError; ClientSock.Create(); //Socks5代理服务器端口及地址 //if( !ClientSock.Connect(“61.238.12.84”,12654) ) if( !ClientSock.Connect(“192.168.123.194”,1080) ) { m_sError = _T(“不能连接到代理服务器!”); ClientSock.Close(); MessageBox(m_sError); return ; } char buff[600]; struct sock5req1 *m_proxyreq1; m_proxyreq1 = (struct sock5req1 *)buff; m_proxyreq1->Ver = 5; m_proxyreq1->nMethods = 2; m_proxyreq1->Methods[0] = 0; m_proxyreq1->Methods[1] = 2; ClientSock.Send(buff,4); struct sock5ans1 *m_proxyans1; m_proxyans1 = (struct sock5ans1 *)buff; memset(buff,0,600); ClientSock.Receive(buff,600); if(m_proxyans1->Ver != 5 || (m_proxyans1->Method!=0 && m_proxyans1->Method!=2)) { m_sError = _T(“通过代理连接主站不成功!”); ClientSock.Close(); MessageBox(m_sError); return ; } if(m_proxyans1->Method == 2) { int nUserLen = strlen(“alon”); int nPassLen = strlen(“alon”); struct authreq *m_authreq = {0}; m_authreq = (struct authreq *)buff; m_authreq->Ver = 1; m_authreq->Ulen = nUserLen; strcpy(m_authreq->Name,”alon”); m_authreq->PLen = nPassLen; strcpy(m_authreq->Pass,”alon”); ClientSock.Send(buff,513); struct authans *m_authans; m_authans = (struct authans *)buff; memset(buff,0,600); ClientSock.Receive(buff,600); if(m_authans->Ver != 1 || m_authans->Status != 0) { m_sError = _T(“代理服务器用户验证不成功!”); ClientSock.Close(); MessageBox(m_sError); return ; } } struct sock5req2 *m_proxyreq2; m_proxyreq2 = (struct sock5req2 *)buff; m_proxyreq2->Ver = 5; m_proxyreq2->Cmd = 1; m_proxyreq2->Rsv = 0; m_proxyreq2->Atyp = 1; m_proxyreq2->IPAddr = inet_addr(“219.201.39.50”); m_proxyreq2->Port = ntohs(21);

ClientSock.Send(buff,sizeof(struct sock5req2)); struct sock5ans2 *m_proxyans2; memset(buff,0,600); m_proxyans2 = (struct sock5ans2 *)buff; ClientSock.Receive(buff,600); if(m_proxyans2->Ver != 5 || m_proxyans2->Rep != 0) { m_sError = _T(“通过代理连接主站不成功!”); ClientSock.Close(); MessageBox(m_sError); return ; }

//连接已经建立,发送及接收数据 memset(buff,0,600); strcpy(buff,”Hello!”); ClientSock.Send(buff,sizeof(buff)); memset(buff,0,600); ClientSock.Receive(buff,600); MessageBox(buff); ClientSock.Close(); }

void CTestDlg::OnHttp() { // TODO: Add your control notification handler code here CString m_sError; ClientSock.Create(); //if( !ClientSock.Connect(“61.145.123.202”,3128) ) if( !ClientSock.Connect(“211.92.143.19”,3128) ) //if( !ClientSock.Connect(“WWW.TOM.COM”,80) ) { m_sError = _T(“不能连接到代理服务器!”); ClientSock.Close(); MessageBox(m_sError); return ; }

char buff[600] = {0}; // sprintf( buff, “%s%s:%d%s”,”CONNECT “,”219.201.39.50″,21,” HTTP/1.1/r/nUser-Agent: MyApp/0.1/r/n/r/n”); sprintf( buff, “%s%s:%d%s”,”CONNECT “,”219.201.39.50″,21,” HTTP/1.1/r/nUser-Agent: CERN-LineMode/2.15 libwww/2.17b3/r/n/r/n”); // sprintf( buff, “%s%s:%d%s”,”CONNECT “,”www.tom.com”,80,” HTTP/1.1/r/nUser-Agent: CERN-LineMode/2.15 libwww/2.17b3/r/n/r/n”); // sprintf( buff, “%s%s”,”GET “,”HTTP://WWW.TOM.COM HTTP/1.1/r/n/r/n”); ClientSock.Send(buff,strlen(buff)); //发送请求 memset(buff,0,600); ClientSock.Receive(buff,600); if(strstr(buff, “HTTP/1.0 200 Connection established”) == NULL) //连接不成功 { m_sError = _T(“通过代理连接主站不成功!”); ClientSock.Close(); return ; }

/* if( strstr(buff, “Error 403”) ) { //return GoError(PROXYERROR_PROXYDISABLE); //代理服务器拒绝请求 } if( strstr(buff, “407 Proxy authentication required”) ) //需要身份验证 { //return GoError(PROXYERROR_USERNAMEORPASSWORD); //用户身份校检不成功 } if( strstr(buff, “Connection refuesed”) ) { //return GoError(PROXYERROR_CONNECTHOSTSERVER); //通过代理连接主站不成功 } if( strstr(buff, “Access Denied”) ) { //return GoError(PROXYERROR_USERNAMEORPASSWORD); //用户身份校检不成功 } if(strstr(buff, “Connection refused by Remote Host”) ) { //return GoError(PROXYERROR_CONNECTHOSTSERVER); //通过代理连接主站不成功 } ClientSock.Close(); */

//连接已经建立,发送及接收数据 memset(buff,0,600); strcpy(buff,”Hello!”); ClientSock.Send(buff,sizeof(buff)); memset(buff,0,600); ClientSock.Receive(buff,600); MessageBox(buff); ClientSock.Close(); }

/ ///另附一些http的请求和返回 发送一： CONNECT 61.135.158.91:80 HTTP/1.1 User-Agent: MyApp/0.1

发送二： CONNECT 61.135.158.91:80 HTTP/1.1 User-Agent: CERN-LineMode/2.15 libwww/2.17b3

发送三： CONNECT 127.0.0.1:2222 HTTP/1.0 User-agent: MyApp/1.0 Proxy-authorization: enter xxxxxx

接收一： HTTP/1.0 403 Forbidden Server: Topproxy-2.0/ Mime-Version: 1.0 Date: Thu, 18 Nov 2004 16:37:53 GMT Content-Type: text/html Content-Length: 718 Expires: Thu, 18 Nov 2004 16:37:53 GMT X-Squid-Error: ERR_ACCESS_DENIED 0 X-Cache: MISS fro

接收二： HTTP/1.0 502 Proxy Error ( SSL port specified is not allowed. ) Via: 1.0 PROXY Pragma: no-cache Cache-Control: no-cache Content-Type: text/html

<!DOCTYPE HTML PUBLIC “-//IETF//DTD HTML//EN”> <html>

<head> <meta http-equiv=”Conten”

接收三： HTTP/1.1 403 Forbidden Date: Sat, 20 Nov 2004 14:33:13 GMT Content-Length: 257 Content-Type: text/html Server: NetCache appliance (NetApp/5.6R1D6)

<HTML> <HEAD><TITLE>403 Forbidden</TITLE></HEAD> <BODY> <H1>Forbidden</H1> <H4>

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