httpthreadget.cpp

此程式利用ftp與http協定提供多線程下載及斷點續傳功能

// HttpThreadGet.cpp : Defines the class behaviors for the application.
#include "stdafx.h"
#include "HttpThreadGet.h"
#include "HttpGet.h"
#include "FtpGet.h"
#include "Dealsocket.h"
#include "myfile.h"

BEGIN_MESSAGE_MAP(CHttpThreadGetApp, CWinApp)
//{{AFX_MSG_MAP(CHttpThreadGetApp)
// NOTE - the ClassWizard will add and remove mapping macros here.
//    DO NOT EDIT what you see in these blocks of generated code!
//}}AFX_MSG
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHttpThreadGetApp construction

CHttpThreadGetApp::CHttpThreadGetApp()
{
}

CHttpThreadGetApp theApp;

// 假设FTP代理服务器为192.168.1.30, 你要的ftp主机为www.ChengMengEn.org;
// 用户帐号为vcd, 口令为godsword.
// 用FTP代理服务器则相应改为-FTP主机:192.168.1.30;
// 用户帐号为 [e-mail], 口令为godsword. 

void MyFtp(BOOL bProxy,BOOL bList,BOOL bPasv)
{
	CFtpGet a;
	CString host,userName,pass;
    int port;
  
	if(bProxy){
		host="192.168.1.30";
		port=2121;
		userName="[e-mail]";
		pass="godsword";
	}
	else{
		host="www.ChengMengEn.org";
		port=21;
		userName="vcd";
		pass="godsword";
	}

	if(bList){
		SOCKET hCtrlSock=a.ConnectFtp(host,port,userName,pass);
		 a.DirList(hCtrlSock,bPasv);
	}
	else{
		CString strFtpFileName="church/church_01.mpg";
		CString strWriteFileName;
		strWriteFileName.Format
			("c:\\%s",myfile.GetShortFileName(strFtpFileName));
		a.FtpDownLoad(host,port,
			userName ,pass, strFtpFileName,strWriteFileName,3,bPasv);
	}
}

//---------------------------------------------------------------------------
// 从URL中提取主机名称、下载文件路径和文件名.
void ParseURL(CString URL,CString &host,CString &path,CString &filename)
{
   URL.TrimLeft();
   URL.TrimRight();
   CString str=URL;
   CString strFind=_T("http://");
   int n=str.Find(strFind);
   if(n!=-1){
      str.Delete(0, n+strFind.GetLength());
   }

   n=str.Find('/');
   host = str.Left(n);
   n=URL.ReverseFind('/');
   path = URL.Left(n+1);
   filename = URL.Right(URL.GetLength()-n-1);
}

void MyHttp(BOOL bProxy)
{
	CHttpGet b;
	CString strHostAddr;
	CString strHttpAddr;
	CString strHttpFilename;
	CString strWriteFileName;

	CString lpszURL="http://www.netants.com/download/netants_gb2312.zip";
	ParseURL(lpszURL,strHostAddr,strHttpAddr,strHttpFilename);
	strWriteFileName.Format("c:\\%s",strHttpFilename);
    
	if(bProxy){
		CString strProxyAddr="192.168.1.30";
		int nProxyPort=81;
		b.HttpDownLoadProxy(strProxyAddr,nProxyPort,
			strHostAddr,strHttpAddr,strHttpFilename,strWriteFileName,2);
	}
	else{
		b.HttpDownLoadNonProxy(strHostAddr,
			strHttpAddr,strHttpFilename,strWriteFileName,2);
	}
}

BOOL CHttpThreadGetApp::InitInstance()
{
//	MyHttp(false);
	MyFtp(false,true,true);
	return FALSE;
}