www.pudn.com > updata_vcsource.rar > UpdateDlg.cpp

// UpdateDlg.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "Update.h" 
#include "UpdateDlg.h" 
#include  
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CUpdateDlg dialog 
 
CUpdateDlg::CUpdateDlg(CWnd* pParent /*=NULL*/) 
	: CDialog(CUpdateDlg::IDD, pParent) 
{ 
	//{{AFX_DATA_INIT(CUpdateDlg) 
	m_strStatus = _T("点击下一步查看可用的更新"); 
	//}}AFX_DATA_INIT 
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 
	char buf[MAX_PATH]; 
	::GetTempPath(sizeof(buf),buf); 
	m_strTempDir=buf; 
	m_dwHttpRequestFlags=HSR_DOWNLOAD | INTERNET_FLAG_EXISTING_CONNECT | INTERNET_FLAG_NO_AUTO_REDIRECT;  
	//获得路径 
	::GetModuleFileName(NULL,buf,sizeof(buf)); 
	CString str=buf; 
	int m=str.ReverseFind('\\'); 
	m_strAppPath=str.Left(m+1); 
	str.Empty(); 
} 
 
void CUpdateDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CUpdateDlg) 
	DDX_Control(pDX, IDOK, m_buOK); 
	DDX_Control(pDX, IDC_LIST_PRODUCT, m_lbProduct); 
	DDX_Control(pDX, IDC_PROGRESS1, m_prog); 
	DDX_Text(pDX, IDC_STATIC_STATUS, m_strStatus); 
	//}}AFX_DATA_MAP 
} 
 
BEGIN_MESSAGE_MAP(CUpdateDlg, CDialog) 
	//{{AFX_MSG_MAP(CUpdateDlg) 
	ON_WM_PAINT() 
	ON_WM_QUERYDRAGICON() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CUpdateDlg message handlers 
 
BOOL CUpdateDlg::OnInitDialog() 
{ 
	CDialog::OnInitDialog(); 
 
	// Set the icon for this dialog.  The framework does this automatically 
	//  when the application's main window is not a dialog 
	SetIcon(m_hIcon, TRUE);			// Set big icon 
	SetIcon(m_hIcon, FALSE);		// Set small icon 
	 
	m_cis.SetOption(INTERNET_OPTION_CONNECT_TIMEOUT,5); 
	m_pHttp=m_cis.GetHttpConnection(m_strServer,m_dwPort); 
	m_lbProduct.AddString(m_strSoft+" "+m_strVersion); 
	 
	return TRUE;  // return TRUE  unless you set the focus to a control 
} 
 
// If you add a minimize button to your dialog, you will need the code below 
//  to draw the icon.  For MFC applications using the document/view model, 
//  this is automatically done for you by the framework. 
 
void CUpdateDlg::OnPaint()  
{ 
	if (IsIconic()) 
	{ 
		CPaintDC dc(this); // device context for painting 
 
		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); 
 
		// Center icon in client rectangle 
		int cxIcon = GetSystemMetrics(SM_CXICON); 
		int cyIcon = GetSystemMetrics(SM_CYICON); 
		CRect rect; 
		GetClientRect(&rect); 
		int x = (rect.Width() - cxIcon + 1) / 2; 
		int y = (rect.Height() - cyIcon + 1) / 2; 
 
		// Draw the icon 
		dc.DrawIcon(x, y, m_hIcon); 
	} 
	else 
	{ 
		CDialog::OnPaint(); 
	} 
} 
 
// The system calls this to obtain the cursor to display while the user drags 
//  the minimized window. 
HCURSOR CUpdateDlg::OnQueryDragIcon() 
{ 
	return (HCURSOR) m_hIcon; 
} 
 
void CUpdateDlg::OnOK()  
{ 
	CString str; 
	m_buOK.GetWindowText(str); 
	if(str=="更新(&U)") 
	{ 
		Update(); 
		return; 
	} 
	else if(str=="完成(&O)") 
	{ 
		CDialog::OnOK(); 
		return; 
	} 
	m_strStatus="正在连接到服务器..."; 
	UpdateData(FALSE); 
	CHttpFile *pFile = m_pHttp->OpenRequest(CHttpConnection::HTTP_VERB_GET,  
			m_strIniPath, NULL, 1, NULL, NULL, m_dwHttpRequestFlags);  
	if(!pFile->SendRequest()) 
	{ 
		m_strStatus="连接服务器失败！"; 
		UpdateData(FALSE); 
		pFile->Close(); 
		return; 
	} 
	 
	m_strStatus="读取版本信息..."; 
	UpdateData(FALSE); 
	if(pFile) 
	{ 
		CStdioFile csf; 
		csf.Open(m_strTempDir+"\\update.ini",CFile::modeCreate|CFile::modeWrite|CFile::typeBinary); 
		char buf[2048]; 
		int n; 
		while((n=pFile->Read(buf,2048))>0) 
			csf.Write(buf,n); 
		csf.Close(); 
		pFile->Close(); 
	} 
	char buf[128]; 
	::GetPrivateProfileString(m_strSoft,"VERSION","1.0",buf,sizeof(buf),m_strTempDir+"\\update.ini"); 
	m_strNewVer=buf; 
	if(atof(m_strVersion)>=atof(buf))//现有版本大于 
	{ 
		m_strStatus="您现在用的版本已是最新的！"; 
		UpdateData(FALSE); 
		m_buOK.EnableWindow(FALSE); 
		return; 
	} 
	m_strStatus="发现新的版本:"; 
	m_strStatus+=m_strSoft+" "+buf; 
	UpdateData(FALSE); 
	m_buOK.SetWindowText("更新(&U)"); 
} 
 
BOOL CUpdateDlg::DestroyWindow()  
{ 
	m_pHttp->Close(); 
	m_cis.Close();	 
	return CDialog::DestroyWindow(); 
} 
 
void CUpdateDlg::Update() 
{ 
	BeginWaitCursor(); 
	DWORD id=FindAppProcessID(); 
	if(id!=-1) 
	{ 
		if(AfxMessageBox(m_strSoft+"已在运行！\n请先关闭程序才能进行更新！\n如果选择确定将强行关闭程序！",MB_OKCANCEL)==IDOK) 
		{ 
			HANDLE ProcessHandle=OpenProcess(PROCESS_ALL_ACCESS,FALSE,id); 
			if(ProcessHandle)TerminateProcess(ProcessHandle,0); 
		} 
	} 
 
	char buf[MAX_PATH]; 
	for(int i=0;;i++) 
	{ 
		CString str; 
		str.Format("FILE%d",i); 
		::GetPrivateProfileString(m_strSoft,str,"",buf,sizeof(buf),m_strTempDir+"\\update.ini"); 
		if(strlen(buf)<1)break;//退出 
		if(!UpdateFile(buf)) 
		{ 
			m_buOK.SetWindowText("完成(&O)"); 
			EndWaitCursor(); 
			return; 
		} 
	} 
	m_lbProduct.DeleteString(0); 
	m_lbProduct.AddString(m_strSoft+" "+m_strNewVer); 
	m_buOK.SetWindowText("完成(&O)"); 
	m_strStatus="完成更新！"; 
	UpdateData(FALSE); 
	::DeleteFile(m_strTempDir+"\\update.ini"); 
	EndWaitCursor(); 
} 
 
DWORD CUpdateDlg::FindAppProcessID() 
{ 
	HANDLE handle=::CreateToolhelp32Snapshot(TH32CS_SNAPALL,0); 
	PROCESSENTRY32 Info; 
	Info.dwSize = sizeof(PROCESSENTRY32); 
	if(::Process32First(handle,&Info)) 
	{ 
		do{ 
			CString ss=Info.szExeFile; 
			if(!ss.CompareNoCase(m_strSoft+".exe")) 
			{ 
				::CloseHandle(handle); 
				return Info.th32ProcessID; 
			} 
		} 
		while(::Process32Next(handle,&Info));	 
		::CloseHandle(handle); 
	} 
	return -1; 
} 
 
BOOL CUpdateDlg::UpdateFile(CString strFile) 
{ 
	CHttpFile *pFile =m_pHttp->OpenRequest(CHttpConnection::HTTP_VERB_GET,  
			strFile, NULL, 1, NULL, NULL, m_dwHttpRequestFlags);  
//	pFile->AddRequestHeaders(szHeaders);  
	try{ 
		pFile->SendRequest();  
	} 
	catch(CInternetException* pEx) 
	{ 
		TCHAR szError[1024]; 
		pEx->GetErrorMessage(szError,1024); 
		AfxMessageBox(szError); 
		pFile->Close(); 
		return FALSE; 
	} 
 
	m_strStatus="正在下载文件："+strFile; 
	UpdateData(FALSE); 
 
	CString str; 
	if(pFile) 
	{ 
		pFile->QueryInfo(HTTP_QUERY_STATUS_CODE,str); 
		if(str=="404") 
		{ 
			m_strStatus=strFile+"不存在！"; 
			UpdateData(FALSE); 
			pFile->Close(); 
			return FALSE; 
		} 
		 
		pFile->QueryInfo(HTTP_QUERY_CONTENT_LENGTH,str); 
		DWORD dwLen=atol(str); 
		int n=strFile.ReverseFind('/'); 
		str=m_strAppPath+strFile.Right(strFile.GetLength()-n-1); 
 
		CStdioFile csf; 
		if(!csf.Open(str+".upg",CFile::modeCreate|CFile::modeWrite | CFile::typeBinary | CFile::shareDenyWrite)) 
		{//先为*.upg文件 
			AfxMessageBox("写文件"+str+"错误！\n文件正在使用中，请先关闭程序！",MB_ICONSTOP); 
			pFile->Close(); 
			return FALSE; 
		} 
		 
		char buf[2048]; 
		DWORD dwRead=0; 
		while((n=pFile->Read(buf,sizeof(buf)))>0) 
		{ 
			dwRead+=n; 
			m_prog.SetPos(100*dwRead/dwLen); 
			MSG msg; 
			for(int i=0;i<10;i++) 
			{ 
				if(PeekMessage(&msg,NULL,0,0,PM_REMOVE)) 
				{ 
					TranslateMessage(&msg); 
					DispatchMessage(&msg); 
				} 
			} 
			csf.Write(buf,n); 
		} 
		pFile->Close(); 
	} 
 
	if(::DeleteFile(str)){ 
		::rename(str+".upg",str); 
		m_strStatus=strFile+"完成更新!"; 
		UpdateData(FALSE); 
	} 
	return TRUE; 
}