代理IP批量验证程序

#include <afxinet.h>
#include <afxwin.h>
#include <iostream>
#include <fstream>
#include <string>
#pragma comment(lib,"wininet.lib") 
using namespace std;
CString content;

bool getData(LPCTSTR proxy)
{
	CString data;
	DWORD dwStatusCode;
	CInternetSession session("HttpClient");
	CHttpFile *pfile = NULL;  
	INTERNET_PROXY_INFO proxyinfo;
	proxyinfo.dwAccessType = INTERNET_OPEN_TYPE_PROXY;
	proxyinfo.lpszProxy = proxy;
	proxyinfo.lpszProxyBypass = NULL;
	session.SetOption(INTERNET_OPTION_PROXY,(LPVOID)&proxyinfo,sizeof(INTERNET_PROXY_INFO));
	session.SetOption(INTERNET_OPTION_CONNECT_TIMEOUT, 2000);			// 2秒的连接超时
	session.SetOption(INTERNET_OPTION_SEND_TIMEOUT, 1000);				// 1秒的发送超时
	session.SetOption(INTERNET_OPTION_RECEIVE_TIMEOUT, 7000);			// 7秒的接收超时
	session.SetOption(INTERNET_OPTION_DATA_SEND_TIMEOUT, 1000);			// 1秒的发送超时
	session.SetOption(INTERNET_OPTION_DATA_RECEIVE_TIMEOUT, 7000);      // 7秒的接收超时
	session.SetOption(INTERNET_OPTION_CONNECT_RETRIES, 1);				// 1次重试
	try
	{
		pfile = (CHttpFile*)session.OpenURL("http://ip.dnsexit.com/", 1, INTERNET_FLAG_TRANSFER_ASCII|INTERNET_FLAG_RELOAD|INTERNET_FLAG_DONT_CACHE);
	}
	catch (CInternetException *e)
	{
		pfile = NULL;
		e->Delete();
		session.Close();
		return false;
	}
	pfile->QueryInfoStatusCode(dwStatusCode);
	if(dwStatusCode == HTTP_STATUS_OK)  
	{   
		while (pfile->ReadString(data))  
		{  
			content += data;  
		}
		pfile->Close();
		session.Close();
		return true;
	}
	else
	{
		return false;
	}
}

int main()
{
	string line;
	fstream fin("proxy.txt");
	while (getline(fin, line))
	{
		content.Empty();
		if (getData(line.c_str()))
		{
			cout << content << "is OK!" << endl;
		}
	}
	fin.close();
	return 0;
}

我们可以利用代理IP来刷访问量等等。