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#pragma once
class CDownloadDlg;
class CInternetDownload
{
public:
typedef struct
{
DWORD nStart;//文件片段的起始位置
DWORD nEnd;//文件片段的长度
size_t nIndex;//当前线程的编号
size_t nTotal;
CInternetDownload* pThis;
} ThreadParam;
CInternetDownload(CDownloadDlg* pDlg);
virtual ~CInternetDownload(void);
virtual int Download(const CString& strUrl, size_t nThreads);
protected:
static CString s_strUrl;
static CDownloadDlg* s_pDlg;
virtual DWORD GetFileLength(const CString& strUrl) = 0;
virtual CFile* GetInternetFile(LPVOID) = 0;
static UINT ServerWorkerThread(LPVOID lpParam);
CInternetSession internetSession;
private:
CFile* m_internetFile;
};
#pragma once
class CDownloadDlg;
class CInternetDownload
{
public:
typedef struct
{
DWORD nStart;//文件片段的起始位置
DWORD nEnd;//文件片段的长度
size_t nIndex;//当前线程的编号
size_t nTotal;
CInternetDownload* pThis;
} ThreadParam;
CInternetDownload(CDownloadDlg* pDlg);
virtual ~CInternetDownload(void);
virtual int Download(const CString& strUrl, size_t nThreads);
protected:
static CString s_strUrl;
static CDownloadDlg* s_pDlg;
virtual DWORD GetFileLength(const CString& strUrl) = 0;
virtual CFile* GetInternetFile(LPVOID) = 0;
static UINT ServerWorkerThread(LPVOID lpParam);
CInternetSession internetSession;
private:
CFile* m_internetFile;
};
//InternetDownload.cpp
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#include "StdAfx.h"
#include ".\internetdownload.h"
#include "DownloadDlg.h"
CDownloadDlg* CInternetDownload::s_pDlg = NULL;
CString CInternetDownload::s_strUrl;
CInternetDownload::CInternetDownload(CDownloadDlg* pDlg)
: m_internetFile(NULL)
{
s_pDlg = pDlg;
}
CInternetDownload::~CInternetDownload(void)
{
}
UINT CInternetDownload::ServerWorkerThread(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
CFile *pFile = pParam->pThis->GetInternetFile(lpParam);
if (!pFile)
return -1;
CFile localFile;
CString strFileName;
strFileName.Format("c:\\temp.part%d", pParam->nIndex);
if (!localFile.Open(strFileName, CFile::modeCreate | CFile::modeWrite))
return -1;
char * const pBuffer = new char[1024];
DWORD nLeft = pParam->nEnd - pParam->nStart + 1;
while (TRUE)
{
int nRead = pFile->Read(pBuffer, nLeft > 1024 ? 1024 : nLeft);
localFile.Write(pBuffer, nRead);
if (nRead < 1024)
break;
nLeft -= nRead;
}
localFile.Close();
delete []pBuffer;
pFile->Close();
delete pFile;
s_pDlg->PostMessage(WM_DOWNLOADED_MESSAGE, pParam->nTotal, pParam->nIndex);
delete pParam;
pParam = NULL;
return 0;
}
int CInternetDownload::Download(const CString& strUrl, size_t nThreads)
{
s_strUrl = strUrl;
DWORD nFileSize = GetFileLength(strUrl);
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
lpParam->pThis = this;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
#include "StdAfx.h"
#include ".\internetdownload.h"
#include "DownloadDlg.h"
CDownloadDlg* CInternetDownload::s_pDlg = NULL;
CString CInternetDownload::s_strUrl;
CInternetDownload::CInternetDownload(CDownloadDlg* pDlg)
: m_internetFile(NULL)
{
s_pDlg = pDlg;
}
CInternetDownload::~CInternetDownload(void)
{
}
UINT CInternetDownload::ServerWorkerThread(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
CFile *pFile = pParam->pThis->GetInternetFile(lpParam);
if (!pFile)
return -1;
CFile localFile;
CString strFileName;
strFileName.Format("c:\\temp.part%d", pParam->nIndex);
if (!localFile.Open(strFileName, CFile::modeCreate | CFile::modeWrite))
return -1;
char * const pBuffer = new char[1024];
DWORD nLeft = pParam->nEnd - pParam->nStart + 1;
while (TRUE)
{
int nRead = pFile->Read(pBuffer, nLeft > 1024 ? 1024 : nLeft);
localFile.Write(pBuffer, nRead);
if (nRead < 1024)
break;
nLeft -= nRead;
}
localFile.Close();
delete []pBuffer;
pFile->Close();
delete pFile;
s_pDlg->PostMessage(WM_DOWNLOADED_MESSAGE, pParam->nTotal, pParam->nIndex);
delete pParam;
pParam = NULL;
return 0;
}
int CInternetDownload::Download(const CString& strUrl, size_t nThreads)
{
s_strUrl = strUrl;
DWORD nFileSize = GetFileLength(strUrl);
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
lpParam->pThis = this;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
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#pragma once
#include "InternetDownload.h"
class CFtpDownload : public CInternetDownload
{
public:
CFtpDownload(CDownloadDlg* pDlg);
virtual ~CFtpDownload(void);
// int Download(const CString& strUrl, size_t nThreads);
private:
DWORD GetFileLength(const CString& strUrl);
CFile* GetInternetFile(LPVOID lpParam);
};
#pragma once
#include "InternetDownload.h"
class CFtpDownload : public CInternetDownload
{
public:
CFtpDownload(CDownloadDlg* pDlg);
virtual ~CFtpDownload(void);
// int Download(const CString& strUrl, size_t nThreads);
private:
DWORD GetFileLength(const CString& strUrl);
CFile* GetInternetFile(LPVOID lpParam);
};
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#include "StdAfx.h"
#include ".\ftpdownload.h"
#include "DownloadDlg.h"
#include <winsock2.h>
#include "shlwapi.h"
#pragma comment(lib, "Wininet.lib")
#pragma comment(lib, "shlwapi.lib")
CFtpDownload::CFtpDownload(CDownloadDlg* pDlg)
: CInternetDownload(pDlg)
{
// s_pDlg = pDlg;
}
CFtpDownload::~CFtpDownload(void)
{
}
CFile* CFtpDownload::GetInternetFile(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
CFtpConnection *pFtpConn = NULL;
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(s_strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword) || dwServiceType != INTERNET_SERVICE_FTP)
{
TRACE(_T("Not a ftp Quest! \n"));
}
pFtpConn = internetSession.GetFtpConnection(strServerName, strUserName, strPassword);
CString strFtpCommand;
strFtpCommand.Format("REST %d", pParam->nStart);
if (!FtpCommand(*pFtpConn, FALSE, FTP_TRANSFER_TYPE_ASCII, strFtpCommand, 0, 0))
{
int i = WSAGetLastError();
return NULL;
}
CFile *pFile = pFtpConn->OpenFile(strObject);
return pFile;
}
/*
int CFtpDownload::Download(const CString& strUrl, size_t nThreads)
{
DWORD nFileSize = GetFileLength(strUrl);
s_strUrl = strUrl;
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
lpParam->pThis = this;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
*/
DWORD CFtpDownload::GetFileLength(const CString& strUrl)
{
CInternetSession internetSession;
CFtpConnection *pFtpConn = NULL;
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword) || dwServiceType != INTERNET_SERVICE_FTP)
{
TRACE(_T("Not a ftp Quest! \n"));
return -1;
}
pFtpConn = internetSession.GetFtpConnection(strServerName, strUserName, strPassword);
//FtpCommand("REST 1024");
/* if (!FtpCommand(*pFtpConn, FALSE, FTP_TRANSFER_TYPE_ASCII, "REST 1024", 0, 0))
return -1;*/
CInternetFile *pFile = pFtpConn->OpenFile(strObject);
DWORD nFileSize = FtpGetFileSize(*pFile, 0);
pFile->Close();
delete pFile;
return nFileSize;
}
#include "StdAfx.h"
#include ".\ftpdownload.h"
#include "DownloadDlg.h"
#include <winsock2.h>
#include "shlwapi.h"
#pragma comment(lib, "Wininet.lib")
#pragma comment(lib, "shlwapi.lib")
CFtpDownload::CFtpDownload(CDownloadDlg* pDlg)
: CInternetDownload(pDlg)
{
// s_pDlg = pDlg;
}
CFtpDownload::~CFtpDownload(void)
{
}
CFile* CFtpDownload::GetInternetFile(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
CFtpConnection *pFtpConn = NULL;
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(s_strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword) || dwServiceType != INTERNET_SERVICE_FTP)
{
TRACE(_T("Not a ftp Quest! \n"));
}
pFtpConn = internetSession.GetFtpConnection(strServerName, strUserName, strPassword);
CString strFtpCommand;
strFtpCommand.Format("REST %d", pParam->nStart);
if (!FtpCommand(*pFtpConn, FALSE, FTP_TRANSFER_TYPE_ASCII, strFtpCommand, 0, 0))
{
int i = WSAGetLastError();
return NULL;
}
CFile *pFile = pFtpConn->OpenFile(strObject);
return pFile;
}
/*
int CFtpDownload::Download(const CString& strUrl, size_t nThreads)
{
DWORD nFileSize = GetFileLength(strUrl);
s_strUrl = strUrl;
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
lpParam->pThis = this;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
*/
DWORD CFtpDownload::GetFileLength(const CString& strUrl)
{
CInternetSession internetSession;
CFtpConnection *pFtpConn = NULL;
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword) || dwServiceType != INTERNET_SERVICE_FTP)
{
TRACE(_T("Not a ftp Quest! \n"));
return -1;
}
pFtpConn = internetSession.GetFtpConnection(strServerName, strUserName, strPassword);
//FtpCommand("REST 1024");
/* if (!FtpCommand(*pFtpConn, FALSE, FTP_TRANSFER_TYPE_ASCII, "REST 1024", 0, 0))
return -1;*/
CInternetFile *pFile = pFtpConn->OpenFile(strObject);
DWORD nFileSize = FtpGetFileSize(*pFile, 0);
pFile->Close();
delete pFile;
return nFileSize;
}
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#pragma once
#include "InternetDownload.h"
class CHttpDownload : public CInternetDownload
{
public:
CHttpDownload(CDownloadDlg* pDlg);
virtual ~CHttpDownload(void);
private:
// static UINT ServerWorkerThread(LPVOID lpParam);
DWORD GetFileLength(const CString& strUrl);
CFile* GetInternetFile(LPVOID lpParam);
public:
// int Download(const CString& strUrl, int nThreads);
int FormatRequestHeader(void);
};
#pragma once
#include "InternetDownload.h"
class CHttpDownload : public CInternetDownload
{
public:
CHttpDownload(CDownloadDlg* pDlg);
virtual ~CHttpDownload(void);
private:
// static UINT ServerWorkerThread(LPVOID lpParam);
DWORD GetFileLength(const CString& strUrl);
CFile* GetInternetFile(LPVOID lpParam);
public:
// int Download(const CString& strUrl, int nThreads);
int FormatRequestHeader(void);
};
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#include "StdAfx.h"
#include ".\httpdownload.h"
#include "DownloadDlg.h"
static const char szHeaders[] = "Accept: */*\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)\r\n";
CFile* CHttpDownload::GetInternetFile(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
DWORD dwFlag = INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_RELOAD;
CString strHeader;//请求头
strHeader.Format("%sRange: bytes=%d-%d\r\n", szHeaders, pParam->nStart, pParam->nEnd);//pParam->nIndex * 8192);//, 1024 * 1024);
return internetSession.OpenURL(s_strUrl, 1, dwFlag, strHeader, -1);
}
/*
UINT CHttpDownload::ServerWorkerThread(LPVOID lpParam)
{
//size_t nIndex = reinterpret_cast<size_t>(lpParam);//第几个文件片段
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
char * const pBuffer = new char[1024];
//for (int i = 0; ; i++)
while (TRUE)
{
int nRead = pHttpFile->Read(pBuffer, 1024);
localFile.Write(pBuffer, nRead);
if (nRead < 1024)
break;
}
localFile.Close();
delete []pBuffer;
pHttpFile->Close();
delete pHttpFile;
s_pDlg->PostMessage(WM_DOWNLOADED_MESSAGE, pParam->nTotal, pParam->nIndex);
delete pParam;
return 0;
}
*/
CHttpDownload::CHttpDownload(CDownloadDlg* pDlg)
: CInternetDownload(pDlg)
//: m_strHeader("Accept: */*\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows XP)\r\n")
{
}
CHttpDownload::~CHttpDownload(void)
{
}
/*
int CHttpDownload::Download(const CString& strUrl, int nThreads)
{
s_strUrl = strUrl;
DWORD nFileSize = GetFileLength(strUrl);
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
*/
int CHttpDownload::FormatRequestHeader(void)
{
// char szHeader[1024];
return 0;
}
DWORD CHttpDownload::GetFileLength(const CString& strUrl)
{
CInternetSession sess;
DWORD dwFlag = INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_RELOAD;
s_strUrl = strUrl;
CHttpFile* pHttpFile = (CHttpFile* )sess.OpenURL(s_strUrl, 1, dwFlag);
if (!pHttpFile)
return -1;
CString strLength;
pHttpFile->QueryInfo(HTTP_QUERY_CONTENT_LENGTH, strLength);
pHttpFile->Close();
delete pHttpFile;
return _ttoi(strLength);
}
#include "StdAfx.h"
#include ".\httpdownload.h"
#include "DownloadDlg.h"
static const char szHeaders[] = "Accept: */*\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)\r\n";
CFile* CHttpDownload::GetInternetFile(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
DWORD dwFlag = INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_RELOAD;
CString strHeader;//请求头
strHeader.Format("%sRange: bytes=%d-%d\r\n", szHeaders, pParam->nStart, pParam->nEnd);//pParam->nIndex * 8192);//, 1024 * 1024);
return internetSession.OpenURL(s_strUrl, 1, dwFlag, strHeader, -1);
}
/*
UINT CHttpDownload::ServerWorkerThread(LPVOID lpParam)
{
//size_t nIndex = reinterpret_cast<size_t>(lpParam);//第几个文件片段
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
char * const pBuffer = new char[1024];
//for (int i = 0; ; i++)
while (TRUE)
{
int nRead = pHttpFile->Read(pBuffer, 1024);
localFile.Write(pBuffer, nRead);
if (nRead < 1024)
break;
}
localFile.Close();
delete []pBuffer;
pHttpFile->Close();
delete pHttpFile;
s_pDlg->PostMessage(WM_DOWNLOADED_MESSAGE, pParam->nTotal, pParam->nIndex);
delete pParam;
return 0;
}
*/
CHttpDownload::CHttpDownload(CDownloadDlg* pDlg)
: CInternetDownload(pDlg)
//: m_strHeader("Accept: */*\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows XP)\r\n")
{
}
CHttpDownload::~CHttpDownload(void)
{
}
/*
int CHttpDownload::Download(const CString& strUrl, int nThreads)
{
s_strUrl = strUrl;
DWORD nFileSize = GetFileLength(strUrl);
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
*/
int CHttpDownload::FormatRequestHeader(void)
{
// char szHeader[1024];
return 0;
}
DWORD CHttpDownload::GetFileLength(const CString& strUrl)
{
CInternetSession sess;
DWORD dwFlag = INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_RELOAD;
s_strUrl = strUrl;
CHttpFile* pHttpFile = (CHttpFile* )sess.OpenURL(s_strUrl, 1, dwFlag);
if (!pHttpFile)
return -1;
CString strLength;
pHttpFile->QueryInfo(HTTP_QUERY_CONTENT_LENGTH, strLength);
pHttpFile->Close();
delete pHttpFile;
return _ttoi(strLength);
}
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// DownloadDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "Download.h"
#include "DownloadDlg.h"
#include ".\downloaddlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// 对话框数据
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CDownloadDlg 对话框
CDownloadDlg::CDownloadDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDownloadDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
m_pDownloader = NULL;
}
void CDownloadDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
//#define WM_XXXX 10O
//const static int WM_DOWNLOADED_MESSAGE = WM_USER+100;
BEGIN_MESSAGE_MAP(CDownloadDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_MESSAGE(WM_DOWNLOADED_MESSAGE, OnDownloadMessage)
ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
ON_BN_CLICKED(IDC_BUTTON2, OnBnClickedButton2)
END_MESSAGE_MAP()
// CDownloadDlg 消息处理程序
BOOL CDownloadDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 将\“关于
\”菜单项添加到系统菜单中。
// IDM_ABOUTBOX 必须在系统命令范围内。
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);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
// GetDlgItem(IDC_EDIT1)->SetWindowText("http://codeproject.com/");//http://192.168.8.246:8080/sogou_wubi_15b.exe
GetDlgItem(IDC_EDIT1)->SetWindowText("ftp://me:me@192.168.69.86/inet.h");//ftp://192.168.14.130/InstallPack/5.9.5.x/5.9.5.976/5.9.5.976.txt");
GetDlgItem(IDC_EDIT2)->SetWindowText("4");
return TRUE; // 除非设置了控件的焦点，否则返回 TRUE
}
void CDownloadDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮，则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
// 这将由框架自动完成。
void CDownloadDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作矩形中居中
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;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CDownloadDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
#include "InternetDownload.h"
#include "FtpDownload.h"
#include "HttpDownload.h"
void CDownloadDlg::OnBnClickedButton1()
{
CListBox* pListBox = (CListBox*)GetDlgItem(IDC_LIST1);
for (int i = pListBox->GetCount() - 1; i >= 0; i--)
{
pListBox->DeleteString( i );
}
//downloader.Download("http://192.168.8.246:8080/sogou_wubi_15b.exe");
CString strUrl;
GetDlgItem(IDC_EDIT1)->GetWindowText(strUrl);
CString strThreads;
CWnd* pEditCtrl = GetDlgItem(IDC_EDIT2);
pEditCtrl->GetWindowText(strThreads);
if (!strUrl.IsEmpty() && !strThreads.IsEmpty())
{
GetDlgItem(IDC_EDIT1)->EnableWindow(FALSE);
GetDlgItem(IDC_EDIT2)->EnableWindow(FALSE);
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword))
{
TRACE(_T("Not a valid Quest! \n"));
GetDlgItem(IDC_EDIT2)->EnableWindow();
GetDlgItem(IDC_EDIT2)->EnableWindow();
}
if (dwServiceType == INTERNET_SERVICE_HTTP)
{
m_pDownloader = new CHttpDownload(this);
m_pDownloader->Download(strUrl, _ttoi(strThreads));
}
else if (dwServiceType = INTERNET_SERVICE_FTP)
{
m_pDownloader = new CFtpDownload(this);
m_pDownloader->Download(strUrl, _ttoi(strThreads));
}
else
{
TRACE(_T("Not a valid Quest! \n"));
GetDlgItem(IDC_EDIT2)->EnableWindow();
GetDlgItem(IDC_EDIT2)->EnableWindow();
}
//delete pDownloader;
}
else
{
AfxMessageBox("please input url & thread number");
return;
}
}
LRESULT CDownloadDlg::OnDownloadMessage(WPARAM wParam, LPARAM lParam)
{
CString strInfo;
strInfo.Format("part %d complete.", lParam);
CListBox* pListBox = (CListBox*)GetDlgItem(IDC_LIST1);
pListBox->InsertString(pListBox->GetCount(), strInfo);
CString strThreads;
CWnd* pEditCtrl = GetDlgItem(IDC_EDIT2);
pEditCtrl->GetWindowText(strThreads);
if (pListBox->GetCount() == wParam)
{
//MergeFile();
CFile resultFile("c:\\temp.exe", CFile::modeCreate | CFile::modeWrite);
if (!resultFile)
return -1;
char buffer[1024];
for (size_t i = 0; i < wParam; i++)
{
int nLength;
CString strFileName;
strFileName.Format("c:/temp.part%d", i);
CFile tempFile(strFileName, CFile::modeRead);
//nLength = file2.GetLength();
if (!tempFile)
{
AfxMessageBox("error: cannot find..");
return -1;
}
while ( (nLength = tempFile.Read(buffer, 1024)) > 0)
{
resultFile.Write(buffer, nLength);
if (nLength < 1024)
break;
}
tempFile.Close();
}
resultFile.Close();
pListBox->InsertString(wParam, "Merge Ok!");
GetDlgItem(IDC_EDIT1)->EnableWindow();
GetDlgItem(IDC_EDIT2)->EnableWindow();
delete m_pDownloader;
m_pDownloader = NULL;
}
return 0;
}
void CDownloadDlg::OnBnClickedButton2()
{
CListBox* pListBox = (CListBox*)GetDlgItem(IDC_LIST1);
for (int i = pListBox->GetCount() - 1; i >= 0; i--)
{
pListBox->DeleteString( i );
}
}
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/shuizhiyun/archive/2009/08/18/4458530.aspx
#pragma once
class CDownloadDlg;
class CInternetDownload
{
public:
typedef struct
{
DWORD nStart;//文件片段的起始位置
DWORD nEnd;//文件片段的长度
size_t nIndex;//当前线程的编号
size_t nTotal;
CInternetDownload* pThis;
} ThreadParam;
CInternetDownload(CDownloadDlg* pDlg);
virtual ~CInternetDownload(void);
virtual int Download(const CString& strUrl, size_t nThreads);
protected:
static CString s_strUrl;
static CDownloadDlg* s_pDlg;
virtual DWORD GetFileLength(const CString& strUrl) = 0;
virtual CFile* GetInternetFile(LPVOID) = 0;
static UINT ServerWorkerThread(LPVOID lpParam);
CInternetSession internetSession;
private:
CFile* m_internetFile;
};
#pragma once
class CDownloadDlg;
class CInternetDownload
{
public:
typedef struct
{
DWORD nStart;//文件片段的起始位置
DWORD nEnd;//文件片段的长度
size_t nIndex;//当前线程的编号
size_t nTotal;
CInternetDownload* pThis;
} ThreadParam;
CInternetDownload(CDownloadDlg* pDlg);
virtual ~CInternetDownload(void);
virtual int Download(const CString& strUrl, size_t nThreads);
protected:
static CString s_strUrl;
static CDownloadDlg* s_pDlg;
virtual DWORD GetFileLength(const CString& strUrl) = 0;
virtual CFile* GetInternetFile(LPVOID) = 0;
static UINT ServerWorkerThread(LPVOID lpParam);
CInternetSession internetSession;
private:
CFile* m_internetFile;
};
//InternetDownload.cpp
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#include "StdAfx.h"
#include ".\internetdownload.h"
#include "DownloadDlg.h"
CDownloadDlg* CInternetDownload::s_pDlg = NULL;
CString CInternetDownload::s_strUrl;
CInternetDownload::CInternetDownload(CDownloadDlg* pDlg)
: m_internetFile(NULL)
{
s_pDlg = pDlg;
}
CInternetDownload::~CInternetDownload(void)
{
}
UINT CInternetDownload::ServerWorkerThread(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
CFile *pFile = pParam->pThis->GetInternetFile(lpParam);
if (!pFile)
return -1;
CFile localFile;
CString strFileName;
strFileName.Format("c:\\temp.part%d", pParam->nIndex);
if (!localFile.Open(strFileName, CFile::modeCreate | CFile::modeWrite))
return -1;
char * const pBuffer = new char[1024];
DWORD nLeft = pParam->nEnd - pParam->nStart + 1;
while (TRUE)
{
int nRead = pFile->Read(pBuffer, nLeft > 1024 ? 1024 : nLeft);
localFile.Write(pBuffer, nRead);
if (nRead < 1024)
break;
nLeft -= nRead;
}
localFile.Close();
delete []pBuffer;
pFile->Close();
delete pFile;
s_pDlg->PostMessage(WM_DOWNLOADED_MESSAGE, pParam->nTotal, pParam->nIndex);
delete pParam;
pParam = NULL;
return 0;
}
int CInternetDownload::Download(const CString& strUrl, size_t nThreads)
{
s_strUrl = strUrl;
DWORD nFileSize = GetFileLength(strUrl);
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
lpParam->pThis = this;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
#include "StdAfx.h"
#include ".\internetdownload.h"
#include "DownloadDlg.h"
CDownloadDlg* CInternetDownload::s_pDlg = NULL;
CString CInternetDownload::s_strUrl;
CInternetDownload::CInternetDownload(CDownloadDlg* pDlg)
: m_internetFile(NULL)
{
s_pDlg = pDlg;
}
CInternetDownload::~CInternetDownload(void)
{
}
UINT CInternetDownload::ServerWorkerThread(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
CFile *pFile = pParam->pThis->GetInternetFile(lpParam);
if (!pFile)
return -1;
CFile localFile;
CString strFileName;
strFileName.Format("c:\\temp.part%d", pParam->nIndex);
if (!localFile.Open(strFileName, CFile::modeCreate | CFile::modeWrite))
return -1;
char * const pBuffer = new char[1024];
DWORD nLeft = pParam->nEnd - pParam->nStart + 1;
while (TRUE)
{
int nRead = pFile->Read(pBuffer, nLeft > 1024 ? 1024 : nLeft);
localFile.Write(pBuffer, nRead);
if (nRead < 1024)
break;
nLeft -= nRead;
}
localFile.Close();
delete []pBuffer;
pFile->Close();
delete pFile;
s_pDlg->PostMessage(WM_DOWNLOADED_MESSAGE, pParam->nTotal, pParam->nIndex);
delete pParam;
pParam = NULL;
return 0;
}
int CInternetDownload::Download(const CString& strUrl, size_t nThreads)
{
s_strUrl = strUrl;
DWORD nFileSize = GetFileLength(strUrl);
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
lpParam->pThis = this;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
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#pragma once
#include "InternetDownload.h"
class CFtpDownload : public CInternetDownload
{
public:
CFtpDownload(CDownloadDlg* pDlg);
virtual ~CFtpDownload(void);
// int Download(const CString& strUrl, size_t nThreads);
private:
DWORD GetFileLength(const CString& strUrl);
CFile* GetInternetFile(LPVOID lpParam);
};
#pragma once
#include "InternetDownload.h"
class CFtpDownload : public CInternetDownload
{
public:
CFtpDownload(CDownloadDlg* pDlg);
virtual ~CFtpDownload(void);
// int Download(const CString& strUrl, size_t nThreads);
private:
DWORD GetFileLength(const CString& strUrl);
CFile* GetInternetFile(LPVOID lpParam);
};
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#include "StdAfx.h"
#include ".\ftpdownload.h"
#include "DownloadDlg.h"
#include <winsock2.h>
#include "shlwapi.h"
#pragma comment(lib, "Wininet.lib")
#pragma comment(lib, "shlwapi.lib")
CFtpDownload::CFtpDownload(CDownloadDlg* pDlg)
: CInternetDownload(pDlg)
{
// s_pDlg = pDlg;
}
CFtpDownload::~CFtpDownload(void)
{
}
CFile* CFtpDownload::GetInternetFile(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
CFtpConnection *pFtpConn = NULL;
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(s_strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword) || dwServiceType != INTERNET_SERVICE_FTP)
{
TRACE(_T("Not a ftp Quest! \n"));
}
pFtpConn = internetSession.GetFtpConnection(strServerName, strUserName, strPassword);
CString strFtpCommand;
strFtpCommand.Format("REST %d", pParam->nStart);
if (!FtpCommand(*pFtpConn, FALSE, FTP_TRANSFER_TYPE_ASCII, strFtpCommand, 0, 0))
{
int i = WSAGetLastError();
return NULL;
}
CFile *pFile = pFtpConn->OpenFile(strObject);
return pFile;
}
/*
int CFtpDownload::Download(const CString& strUrl, size_t nThreads)
{
DWORD nFileSize = GetFileLength(strUrl);
s_strUrl = strUrl;
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
lpParam->pThis = this;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
*/
DWORD CFtpDownload::GetFileLength(const CString& strUrl)
{
CInternetSession internetSession;
CFtpConnection *pFtpConn = NULL;
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword) || dwServiceType != INTERNET_SERVICE_FTP)
{
TRACE(_T("Not a ftp Quest! \n"));
return -1;
}
pFtpConn = internetSession.GetFtpConnection(strServerName, strUserName, strPassword);
//FtpCommand("REST 1024");
/* if (!FtpCommand(*pFtpConn, FALSE, FTP_TRANSFER_TYPE_ASCII, "REST 1024", 0, 0))
return -1;*/
CInternetFile *pFile = pFtpConn->OpenFile(strObject);
DWORD nFileSize = FtpGetFileSize(*pFile, 0);
pFile->Close();
delete pFile;
return nFileSize;
}
#include "StdAfx.h"
#include ".\ftpdownload.h"
#include "DownloadDlg.h"
#include <winsock2.h>
#include "shlwapi.h"
#pragma comment(lib, "Wininet.lib")
#pragma comment(lib, "shlwapi.lib")
CFtpDownload::CFtpDownload(CDownloadDlg* pDlg)
: CInternetDownload(pDlg)
{
// s_pDlg = pDlg;
}
CFtpDownload::~CFtpDownload(void)
{
}
CFile* CFtpDownload::GetInternetFile(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
CFtpConnection *pFtpConn = NULL;
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(s_strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword) || dwServiceType != INTERNET_SERVICE_FTP)
{
TRACE(_T("Not a ftp Quest! \n"));
}
pFtpConn = internetSession.GetFtpConnection(strServerName, strUserName, strPassword);
CString strFtpCommand;
strFtpCommand.Format("REST %d", pParam->nStart);
if (!FtpCommand(*pFtpConn, FALSE, FTP_TRANSFER_TYPE_ASCII, strFtpCommand, 0, 0))
{
int i = WSAGetLastError();
return NULL;
}
CFile *pFile = pFtpConn->OpenFile(strObject);
return pFile;
}
/*
int CFtpDownload::Download(const CString& strUrl, size_t nThreads)
{
DWORD nFileSize = GetFileLength(strUrl);
s_strUrl = strUrl;
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
lpParam->pThis = this;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
*/
DWORD CFtpDownload::GetFileLength(const CString& strUrl)
{
CInternetSession internetSession;
CFtpConnection *pFtpConn = NULL;
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword) || dwServiceType != INTERNET_SERVICE_FTP)
{
TRACE(_T("Not a ftp Quest! \n"));
return -1;
}
pFtpConn = internetSession.GetFtpConnection(strServerName, strUserName, strPassword);
//FtpCommand("REST 1024");
/* if (!FtpCommand(*pFtpConn, FALSE, FTP_TRANSFER_TYPE_ASCII, "REST 1024", 0, 0))
return -1;*/
CInternetFile *pFile = pFtpConn->OpenFile(strObject);
DWORD nFileSize = FtpGetFileSize(*pFile, 0);
pFile->Close();
delete pFile;
return nFileSize;
}
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#pragma once
#include "InternetDownload.h"
class CHttpDownload : public CInternetDownload
{
public:
CHttpDownload(CDownloadDlg* pDlg);
virtual ~CHttpDownload(void);
private:
// static UINT ServerWorkerThread(LPVOID lpParam);
DWORD GetFileLength(const CString& strUrl);
CFile* GetInternetFile(LPVOID lpParam);
public:
// int Download(const CString& strUrl, int nThreads);
int FormatRequestHeader(void);
};
#pragma once
#include "InternetDownload.h"
class CHttpDownload : public CInternetDownload
{
public:
CHttpDownload(CDownloadDlg* pDlg);
virtual ~CHttpDownload(void);
private:
// static UINT ServerWorkerThread(LPVOID lpParam);
DWORD GetFileLength(const CString& strUrl);
CFile* GetInternetFile(LPVOID lpParam);
public:
// int Download(const CString& strUrl, int nThreads);
int FormatRequestHeader(void);
};
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#include "StdAfx.h"
#include ".\httpdownload.h"
#include "DownloadDlg.h"
static const char szHeaders[] = "Accept: */*\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)\r\n";
CFile* CHttpDownload::GetInternetFile(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
DWORD dwFlag = INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_RELOAD;
CString strHeader;//请求头
strHeader.Format("%sRange: bytes=%d-%d\r\n", szHeaders, pParam->nStart, pParam->nEnd);//pParam->nIndex * 8192);//, 1024 * 1024);
return internetSession.OpenURL(s_strUrl, 1, dwFlag, strHeader, -1);
}
/*
UINT CHttpDownload::ServerWorkerThread(LPVOID lpParam)
{
//size_t nIndex = reinterpret_cast<size_t>(lpParam);//第几个文件片段
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
char * const pBuffer = new char[1024];
//for (int i = 0; ; i++)
while (TRUE)
{
int nRead = pHttpFile->Read(pBuffer, 1024);
localFile.Write(pBuffer, nRead);
if (nRead < 1024)
break;
}
localFile.Close();
delete []pBuffer;
pHttpFile->Close();
delete pHttpFile;
s_pDlg->PostMessage(WM_DOWNLOADED_MESSAGE, pParam->nTotal, pParam->nIndex);
delete pParam;
return 0;
}
*/
CHttpDownload::CHttpDownload(CDownloadDlg* pDlg)
: CInternetDownload(pDlg)
//: m_strHeader("Accept: */*\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows XP)\r\n")
{
}
CHttpDownload::~CHttpDownload(void)
{
}
/*
int CHttpDownload::Download(const CString& strUrl, int nThreads)
{
s_strUrl = strUrl;
DWORD nFileSize = GetFileLength(strUrl);
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
*/
int CHttpDownload::FormatRequestHeader(void)
{
// char szHeader[1024];
return 0;
}
DWORD CHttpDownload::GetFileLength(const CString& strUrl)
{
CInternetSession sess;
DWORD dwFlag = INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_RELOAD;
s_strUrl = strUrl;
CHttpFile* pHttpFile = (CHttpFile* )sess.OpenURL(s_strUrl, 1, dwFlag);
if (!pHttpFile)
return -1;
CString strLength;
pHttpFile->QueryInfo(HTTP_QUERY_CONTENT_LENGTH, strLength);
pHttpFile->Close();
delete pHttpFile;
return _ttoi(strLength);
}
#include "StdAfx.h"
#include ".\httpdownload.h"
#include "DownloadDlg.h"
static const char szHeaders[] = "Accept: */*\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)\r\n";
CFile* CHttpDownload::GetInternetFile(LPVOID lpParam)
{
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
DWORD dwFlag = INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_RELOAD;
CString strHeader;//请求头
strHeader.Format("%sRange: bytes=%d-%d\r\n", szHeaders, pParam->nStart, pParam->nEnd);//pParam->nIndex * 8192);//, 1024 * 1024);
return internetSession.OpenURL(s_strUrl, 1, dwFlag, strHeader, -1);
}
/*
UINT CHttpDownload::ServerWorkerThread(LPVOID lpParam)
{
//size_t nIndex = reinterpret_cast<size_t>(lpParam);//第几个文件片段
ThreadParam *pParam = static_cast<ThreadParam *>(lpParam);
char * const pBuffer = new char[1024];
//for (int i = 0; ; i++)
while (TRUE)
{
int nRead = pHttpFile->Read(pBuffer, 1024);
localFile.Write(pBuffer, nRead);
if (nRead < 1024)
break;
}
localFile.Close();
delete []pBuffer;
pHttpFile->Close();
delete pHttpFile;
s_pDlg->PostMessage(WM_DOWNLOADED_MESSAGE, pParam->nTotal, pParam->nIndex);
delete pParam;
return 0;
}
*/
CHttpDownload::CHttpDownload(CDownloadDlg* pDlg)
: CInternetDownload(pDlg)
//: m_strHeader("Accept: */*\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows XP)\r\n")
{
}
CHttpDownload::~CHttpDownload(void)
{
}
/*
int CHttpDownload::Download(const CString& strUrl, int nThreads)
{
s_strUrl = strUrl;
DWORD nFileSize = GetFileLength(strUrl);
UINT nSegmentLength = (nFileSize + nThreads - 1) / nThreads;
for (size_t i = 0; i < nThreads; i++)
{
ThreadParam *lpParam = new ThreadParam;
//memset(lpParam, '\0', sizeof(ThreadParam));
lpParam->nTotal = nThreads;
lpParam->nIndex = i;
lpParam->nStart = nSegmentLength * i;
lpParam->nEnd = lpParam->nStart + nSegmentLength - 1;
if (lpParam->nEnd >= nFileSize)
lpParam->nEnd = nFileSize - 1;
AfxBeginThread(ServerWorkerThread, static_cast<LPVOID>(lpParam), THREAD_PRIORITY_NORMAL, 0, 0, NULL);
//CreateThread(NULL, 0, ServerWorkerThread, (LPVOID)i, 0, 0);
}
return 0;
}
*/
int CHttpDownload::FormatRequestHeader(void)
{
// char szHeader[1024];
return 0;
}
DWORD CHttpDownload::GetFileLength(const CString& strUrl)
{
CInternetSession sess;
DWORD dwFlag = INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_RELOAD;
s_strUrl = strUrl;
CHttpFile* pHttpFile = (CHttpFile* )sess.OpenURL(s_strUrl, 1, dwFlag);
if (!pHttpFile)
return -1;
CString strLength;
pHttpFile->QueryInfo(HTTP_QUERY_CONTENT_LENGTH, strLength);
pHttpFile->Close();
delete pHttpFile;
return _ttoi(strLength);
}
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// DownloadDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "Download.h"
#include "DownloadDlg.h"
#include ".\downloaddlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// 对话框数据
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CDownloadDlg 对话框
CDownloadDlg::CDownloadDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDownloadDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
m_pDownloader = NULL;
}
void CDownloadDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
//#define WM_XXXX 10O
//const static int WM_DOWNLOADED_MESSAGE = WM_USER+100;
BEGIN_MESSAGE_MAP(CDownloadDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_MESSAGE(WM_DOWNLOADED_MESSAGE, OnDownloadMessage)
ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
ON_BN_CLICKED(IDC_BUTTON2, OnBnClickedButton2)
END_MESSAGE_MAP()
// CDownloadDlg 消息处理程序
BOOL CDownloadDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 将\“关于
\”菜单项添加到系统菜单中。 // IDM_ABOUTBOX 必须在系统命令范围内。
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);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
// GetDlgItem(IDC_EDIT1)->SetWindowText("http://codeproject.com/");//http://192.168.8.246:8080/sogou_wubi_15b.exe
GetDlgItem(IDC_EDIT1)->SetWindowText("ftp://me:me@192.168.69.86/inet.h");//ftp://192.168.14.130/InstallPack/5.9.5.x/5.9.5.976/5.9.5.976.txt");
GetDlgItem(IDC_EDIT2)->SetWindowText("4");
return TRUE; // 除非设置了控件的焦点，否则返回 TRUE
}
void CDownloadDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮，则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
// 这将由框架自动完成。
void CDownloadDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作矩形中居中
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;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CDownloadDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
#include "InternetDownload.h"
#include "FtpDownload.h"
#include "HttpDownload.h"
void CDownloadDlg::OnBnClickedButton1()
{
CListBox* pListBox = (CListBox*)GetDlgItem(IDC_LIST1);
for (int i = pListBox->GetCount() - 1; i >= 0; i--)
{
pListBox->DeleteString( i );
}
//downloader.Download("http://192.168.8.246:8080/sogou_wubi_15b.exe");
CString strUrl;
GetDlgItem(IDC_EDIT1)->GetWindowText(strUrl);
CString strThreads;
CWnd* pEditCtrl = GetDlgItem(IDC_EDIT2);
pEditCtrl->GetWindowText(strThreads);
if (!strUrl.IsEmpty() && !strThreads.IsEmpty())
{
GetDlgItem(IDC_EDIT1)->EnableWindow(FALSE);
GetDlgItem(IDC_EDIT2)->EnableWindow(FALSE);
CString strServerName, strObject, strUserName, strPassword;
DWORD dwServiceType;
INTERNET_PORT nPort;
if (!AfxParseURLEx(strUrl, dwServiceType, strServerName, strObject, nPort, strUserName, strPassword))
{
TRACE(_T("Not a valid Quest! \n"));
GetDlgItem(IDC_EDIT2)->EnableWindow();
GetDlgItem(IDC_EDIT2)->EnableWindow();
}
if (dwServiceType == INTERNET_SERVICE_HTTP)
{
m_pDownloader = new CHttpDownload(this);
m_pDownloader->Download(strUrl, _ttoi(strThreads));
}
else if (dwServiceType = INTERNET_SERVICE_FTP)
{
m_pDownloader = new CFtpDownload(this);
m_pDownloader->Download(strUrl, _ttoi(strThreads));
}
else
{
TRACE(_T("Not a valid Quest! \n"));
GetDlgItem(IDC_EDIT2)->EnableWindow();
GetDlgItem(IDC_EDIT2)->EnableWindow();
}
//delete pDownloader;
}
else
{
AfxMessageBox("please input url & thread number");
return;
}
}
LRESULT CDownloadDlg::OnDownloadMessage(WPARAM wParam, LPARAM lParam)
{
CString strInfo;
strInfo.Format("part %d complete.", lParam);
CListBox* pListBox = (CListBox*)GetDlgItem(IDC_LIST1);
pListBox->InsertString(pListBox->GetCount(), strInfo);
CString strThreads;
CWnd* pEditCtrl = GetDlgItem(IDC_EDIT2);
pEditCtrl->GetWindowText(strThreads);
if (pListBox->GetCount() == wParam)
{
//MergeFile();
CFile resultFile("c:\\temp.exe", CFile::modeCreate | CFile::modeWrite);
if (!resultFile)
return -1;
char buffer[1024];
for (size_t i = 0; i < wParam; i++)
{
int nLength;
CString strFileName;
strFileName.Format("c:/temp.part%d", i);
CFile tempFile(strFileName, CFile::modeRead);
//nLength = file2.GetLength();
if (!tempFile)
{
AfxMessageBox("error: cannot find..");
return -1;
}
while ( (nLength = tempFile.Read(buffer, 1024)) > 0)
{
resultFile.Write(buffer, nLength);
if (nLength < 1024)
break;
}
tempFile.Close();
}
resultFile.Close();
pListBox->InsertString(wParam, "Merge Ok!");
GetDlgItem(IDC_EDIT1)->EnableWindow();
GetDlgItem(IDC_EDIT2)->EnableWindow();
delete m_pDownloader;
m_pDownloader = NULL;
}
return 0;
}
void CDownloadDlg::OnBnClickedButton2()
{
CListBox* pListBox = (CListBox*)GetDlgItem(IDC_LIST1);
for (int i = pListBox->GetCount() - 1; i >= 0; i--)
{
pListBox->DeleteString( i );
}
}
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/shuizhiyun/archive/2009/08/18/4458530.aspx
