ftp.cpp

动态IP地址.rar

// Ftp.cpp: implementation of the CFtp class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "DynamicIP.h"
#include "Ftp.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CFtp::CFtp()
{
	// get the name of the app
	strAppName.LoadString(AFX_IDS_APP_TITLE);

	// create an internet session
	pInetSession = new CInternetSession(strAppName, INTERNET_OPEN_TYPE_PRECONFIG);

	// if Not good, show message + return
	// should never failed anyway
	if(!pInetSession){
		AfxMessageBox("Can't start Internet session");
		return;
	}
}

CFtp::~CFtp()
{
	// close the internet session
	pInetSession->Close();
	// delete the session
	if(pInetSession != NULL)
		delete pInetSession;
}

bool CFtp::ConnectToServer(LPCTSTR strServerName, LPCTSTR strUserName, LPCTSTR strPassword)
{

	if(*strServerName == '\0'){
		AfxMessageBox("FTP Server name missing.", MB_OK|MB_ICONERROR);
		return 0;
	}
	if(*strUserName == '\0'){
		AfxMessageBox("User name is missing.", MB_OK|MB_ICONERROR);
		return 0;
	}
	if(*strPassword == '\0'){
		AfxMessageBox("Password missing.", MB_OK|MB_ICONERROR);
		return 0;
	}

	try {
		// try to connect to a ftp server
		pFtpConnection = pInetSession->GetFtpConnection(strServerName,
			strUserName,
			strPassword);
	} catch (CInternetException* pEx){
		// if failed, just show the error

		// Oops! We failed to connect!
		TCHAR szErr[1024];
		pEx->GetErrorMessage(szErr, 1024);
		TRACE(szErr);
		AfxMessageBox(szErr, MB_OK|MB_ICONERROR);
		pEx->Delete();
		return 0;// return 1 but previous error box have been showed
	}
	return 1;
}

bool CFtp::GetFile(LPCTSTR remoteFile, LPCTSTR localFile, int bType)
{
	BOOL bGotFile;
	BOOL xfrType;
	TCHAR szErr[1024];

	xfrType = bType ? FTP_TRANSFER_TYPE_BINARY : FTP_TRANSFER_TYPE_ASCII;
	// Try to get the file
	try{
		bGotFile = pFtpConnection->GetFile(remoteFile,
										localFile, FALSE,
										FILE_ATTRIBUTE_NORMAL,	
										xfrType | INTERNET_FLAG_RELOAD |
										INTERNET_FLAG_NO_CACHE_WRITE);

	} catch (CInternetException* pEx){
		// Oops! We failed to dowload the file!
		pEx->GetErrorMessage(szErr, sizeof(szErr));
		TRACE(szErr);
		AfxMessageBox(szErr, MB_OK|MB_ICONERROR);
		pEx->Delete();
	}

	return bGotFile ? 1 : 0 ;
	// if bGotFile is 0 ( FALSE ), return 0
	// if bGotFile is 1 ( TRUE  ), return 1
}

bool CFtp::PutFile(LPCTSTR localFile, LPCTSTR remoteDir, LPCTSTR remoteFile, int bType)
{
	BOOL bGotFile;
	BOOL xfrType;
	TCHAR szErr[1024];

	try{
		pFtpConnection->SetCurrentDirectory(remoteDir);

	} catch (CInternetException* pEx){
		// Oops! We failed to change thr directory!
		pEx->GetErrorMessage(szErr, sizeof(szErr));
		TRACE(szErr);
		AfxMessageBox(szErr, MB_OK|MB_ICONERROR);
		pEx->Delete();
		return 0;
	}
	
	xfrType = bType ? FTP_TRANSFER_TYPE_BINARY : FTP_TRANSFER_TYPE_ASCII;
	// Try to upload the file
	try{
		bGotFile = pFtpConnection->PutFile(localFile, remoteFile,
										xfrType | INTERNET_FLAG_RELOAD |
										INTERNET_FLAG_NO_CACHE_WRITE);

	} catch (CInternetException* pEx){
		// Oops! We failed to upload the file!
		pEx->GetErrorMessage(szErr, sizeof(szErr));
		TRACE(szErr);
		AfxMessageBox(szErr, MB_OK|MB_ICONERROR);
		pEx->Delete();
	}

	return bGotFile ? 1 : 0 ;
	// if bGotFile is 0 ( FALSE ), return 0
	// if bGotFile is 1 ( TRUE  ), return 1
}

bool CFtp::CloseConnection()
{
	// close the connection to server, you can reconnect latter
	if(pFtpConnection == NULL)
		return 0;
	try{
		pFtpConnection->Close();
	}catch(...)
	{
		return 0;
	}
	if(pFtpConnection != NULL)
		delete pFtpConnection;

	return 1;
}