www.gusucode.com > VC 基于Socket的HTTP协议文件下载(带进度)源码程序 > VC 基于Socket的HTTP协议文件下载(带进度)源码程序/code/TestHttpDlg.cpp

    // TestHttpDlg.cpp : implementation file
//

#include "stdafx.h"
#include "TestHttp.h"
#include "TestHttpDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestHttpDlg dialog

CTestHttpDlg::CTestHttpDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTestHttpDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTestHttpDlg)
	m_strResponse = _T("");
	m_strRequest = _T("http://ambm.ku.net");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTestHttpDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTestHttpDlg)
	DDX_Control(pDX, IDC_STATIC_SPEED, m_stcSpeed);
	DDX_Control(pDX, IDC_EDIT1, m_edtEdit1);
	DDX_Control(pDX, IDC_PROGRESS1, m_ctrlProgress);
	DDX_Control(pDX, IDC_LIST1, m_ctrlList);
	DDX_Text(pDX, IDC_EDIT1, m_strResponse);
	DDX_Text(pDX, IDC_EDIT2, m_strRequest);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTestHttpDlg, CDialog)
	//{{AFX_MSG_MAP(CTestHttpDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestHttpDlg message handlers

BOOL CTestHttpDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 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
	
	// TODO: Add extra initialization here
	m_ctrlProgress.ShowWindow(SW_HIDE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CTestHttpDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 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 CTestHttpDlg::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 CTestHttpDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;

}

UINT DownloadThread(void *pArg)
{
	CTestHttpDlg *pMainWnd = (CTestHttpDlg *)pArg;
	CFileDialog FileDlg(FALSE);
	CString strFileName;
	if(FileDlg.DoModal() == IDOK)
	{
		strFileName = FileDlg.GetPathName();
	}
	else
	{
		return 0;
	}
	CHttpSocket HttpSocket;
	CString strServer,strObject;
	unsigned short nPort;
	DWORD dwServiceType;
	long nLength;
	const char *pRequestHeader = NULL;
	AfxParseURL(pMainWnd->m_strRequest,dwServiceType,strServer,strObject,nPort);
	
	pRequestHeader = HttpSocket.FormatRequestHeader((LPTSTR)(LPCTSTR)strServer,(LPTSTR)(LPCTSTR)strObject,nLength);	
	HttpSocket.Socket();
	HttpSocket.Connect((LPTSTR)(LPCTSTR)strServer);
	HttpSocket.SendRequest();
	HttpSocket.SetTimeout(10000,0);
/*
	int nSize;
	HttpSocket.GetResponseHeader(nSize);*/

	pMainWnd->m_edtEdit1.SetWindowText(pRequestHeader);
	int nLineSize = 0;
	char szLine[256];
	while(nLineSize != -1)
	{
		nLineSize = HttpSocket.GetResponseLine(szLine,256);
		if(nLineSize > -1)
		{
			szLine[nLineSize] = '\0';
			pMainWnd->m_ctrlList.AddString(szLine);
		}
	}
	char szValue[30];
	HttpSocket.GetField("Content-Length",szValue,30);
	int nSvrState = HttpSocket.GetServerState();
	int nFileSize = atoi(szValue);
	pMainWnd->m_ctrlProgress.ShowWindow(SW_SHOW);
	pMainWnd->m_ctrlProgress.SetRange(0,nFileSize / 1024);
	int nCompletedSize = 0;
	CFile DownloadFile;
	DownloadFile.Open(strFileName,CFile::modeCreate | CFile::modeWrite);
	char pData[1024];
	int nReceSize = 0;
	DWORD dwStartTime,dwEndTime;
	while(nCompletedSize < nFileSize)
	{
		dwStartTime = GetTickCount();
		nReceSize = HttpSocket.Receive(pData,1024);
		if(nReceSize == 0)
		{
			AfxMessageBox("服务器已经关闭连接.");
			break;
		}
		if(nReceSize == -1)
		{
			AfxMessageBox("接收数据超时.");
			break;
		}
		dwEndTime = GetTickCount();
		DownloadFile.Write(pData,nReceSize);
		nCompletedSize += nReceSize;
		pMainWnd->m_ctrlProgress.SetPos(nCompletedSize / 1024);
		
		//Speed
		CString strSpeed;
		//strSpeed.Format("%d",dwStartTime -dwEndTime);
		strSpeed.Format("%d",nReceSize);
		pMainWnd->m_stcSpeed.SetWindowText(strSpeed);
	}
	DownloadFile.Close();
	
	pMainWnd->m_ctrlProgress.ShowWindow(SW_HIDE);
	pMainWnd->m_ctrlProgress.SetPos(0);
	return 0;
}

void CTestHttpDlg::OnOK() 
{
	UpdateData();
	AfxBeginThread(DownloadThread,(void *)this);
}