clientdlg.cpp

来自「《Visual C++视频技术方案宝典》配套光盘」· C++ 代码 · 共 350 行

// ClientDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Client.h"
#include "ClientDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define WM_SOCKETMSG 10000
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CClientDlg dialog

CClientDlg::CClientDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CClientDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CClientDlg)
	m_Port = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CClientDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CClientDlg)
	DDX_Control(pDX, IDC_IPADDRESS1, m_IP);
	DDX_Text(pDX, IDC_EDIT1, m_Port);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CClientDlg, CDialog)
	//{{AFX_MSG_MAP(CClientDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_MESSAGE(WM_SOCKETMSG, OnSocket) 
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CClientDlg message handlers

BOOL CClientDlg::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
	//创建套接字
	m_Client = socket(AF_INET,SOCK_DGRAM,0);
	if (m_Client == INVALID_SOCKET)
	{
		CString str;
		str.Format("创建套接字失败，错误码:%d", WSAGetLastError());
		MessageBox(str);
	}
	m_IsStop = TRUE;
	num = 0;
	m_Port = 1000;
	CString ip = "192.168.1.77";
	m_IP.SetWindowText(ip);
	UpdateData(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CClientDlg::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 CClientDlg::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 CClientDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CClientDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);	
	//设置协议族
	clientaddr.sin_family = AF_INET;
	//设置端口
	clientaddr.sin_port = htons(m_Port);
	CString str;
	m_IP.GetWindowText(str);
	//设置IP地址
	DWORD dwIPaddr = inet_addr(str);
	clientaddr.sin_addr.S_un.S_addr = dwIPaddr;		
	//建立绑定
	if(bind(m_Client,(SOCKADDR*)&clientaddr,sizeof(clientaddr)) == SOCKET_ERROR)
	{
		CString str1;
		str1.Format("建立绑定失败，错误码:%d", WSAGetLastError());
		MessageBox(str1);
	}	
	//设置异步选择
	WSAAsyncSelect(m_Client, GetSafeHwnd(), WM_SOCKETMSG, FD_READ);
}

void CClientDlg::OnSocket(WPARAM wParam, LPARAM lParam)
{
	HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE,8192);
	void* lpBuf = GlobalLock(hGlobal);
	//要显示的信息
	CString sMessage;
	//SOCKADDR_IN结构大小
	int len = sizeof(local);
	//检测发生的网络事件
	int message = lParam & 0x0000FFFF;
	if(message==FD_READ) //读事件
	{
//		if(num<=2)
//		{
		num++;
		//读取数据
		int ret = recvfrom(m_Client,(char*)lpBuf,8192,0,(SOCKADDR*)&local,&len);	
		if(ret == SOCKET_ERROR)
		{
			CString str;
			str.Format("接收数据失败，错误码:%d", WSAGetLastError());
			MessageBox(str);
			return;
		}
		char* temp = (char*)lpBuf;
		if((ret ==1)&&(temp[0]=='^'))
		{
			m_IsStop = TRUE;
			m_file.Close();
			MessageBox("接收完毕");
			return;
		}
		if(m_IsStop)
		{
			char* path;
			path = (char*)lpBuf;
			path[ret] = '\0';
			m_PathName = "e:\\" + (CString)path;
			m_PathName = m_PathName.Left(ret+4);
			m_file.Open(m_PathName,CFile::modeCreate|CFile::modeWrite);
			m_IsStop = FALSE;

			GlobalUnlock(hGlobal);
			GlobalFree(hGlobal);
			return;
		}	
		else 
		{
			m_file.WriteHuge(lpBuf,ret);
	//		if(num==3)
	//			m_file.Close();
			GlobalUnlock(hGlobal);
			GlobalFree(hGlobal);
		}
//		}
	}
	UpdateData(FALSE);
}

void CClientDlg::OnButton2() 
{
	// TODO: Add your control notification handler code here
	m_file.Open(m_PathName,CFile::modeRead);
	DWORD size = m_file.GetLength();
	HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE,size);
	void* lpBuf = GlobalLock(hGlobal);
	m_file.ReadHuge(lpBuf,size);
	char* buffer = (char*)lpBuf;
	m_file.Close();
	m_file.Open(m_PathName,CFile::modeCreate|CFile::modeWrite);
	int mod = size%2048;
	int i;
	for(i=0;i<size/2048;i++)
	{
		CString decrypt;
		char* buf = buffer+2048*i;
		if(i%2 == 1)
			decrypt = DecryptOne(buf);
		else
			decrypt = DecryptTwo(buf);
		m_file.WriteHuge(decrypt,1024);
	}
	if(mod!=0)
	{
		CString decrypt;
		char* buf = buffer+2048*i;
		if(i%2 == 1)
			decrypt = DecryptOne(buf);
		else
			decrypt = DecryptTwo(buf);
		m_file.WriteHuge(decrypt,decrypt.GetLength());
	}
	GlobalUnlock(hGlobal);
	GlobalFree(hGlobal);
	m_file.Close();
	MessageBox("解密成功");
}

CString CClientDlg::DecryptOne(CString S)
{
	CString Result,Str;
	int i,j;
	for(i=0;i<S.GetLength()/2;i++)
	{
		j=((BYTE)S.GetAt(2*i)-65)*26;
		j+=(BYTE)S.GetAt(2*i+1)-65;
		Str = "0";
		Str.SetAt(0,j);
		Result += Str;
	}
	S = Result;
	for(i=0;i<S.GetLength();i++)
	{
		Result.SetAt(i,(BYTE)S.GetAt(i)-7);
	}
	return Result;
}

CString CClientDlg::DecryptTwo(CString S)
{
	CString Result,Str;
	int i,j;
	for(i=0;i<S.GetLength()/2;i++)
	{
		j=((BYTE)S.GetAt(2*i)-65)*26;
		j+=(BYTE)S.GetAt(2*i+1)-65;
		Str = "0";
		Str.SetAt(0,j);
		Result += Str;
	}
	S = Result;
	for(i=0;i<S.GetLength();i++)
	{
		Result.SetAt(i,(BYTE)S.GetAt(i)+7);
	}
	return Result;
}