用WinInet下载文件

最新推荐文章于 2024-08-21 15:56:47 发布

yufeng20345390

最新推荐文章于 2024-08-21 15:56:47 发布

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分类专栏： Windows开发文章标签： null stream internet service url query

本文链接：https://blog.youkuaiyun.com/yufeng20345390/article/details/5524467

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unsigned __stdcall downloadThreadFunc( void* pArguments )
{
tagParam *pParam = (tagParam*)pArguments;
CHttpScanDlg *pDlg = (CHttpScanDlg*)pParam->m_lpVoid;
ASSERT(pDlg != NULL);

int iListNum = pParam->m_iNum;
CString strUrl = pDlg->getUrl(iListNum);
char *Url = (LPSTR)(LPCTSTR)strUrl;
int iPos = strUrl.ReverseFind('/');
char *pFileName = strUrl.GetBuffer() + iPos +1;

CString strServer;
CString strObject;
INTERNET_PORT iPort =0;
DWORD dwServiceType;
AfxParseURL(Url,dwServiceType,strServer,strObject,iPort);

CListCtrl* pListCtrl = (CListCtrl*)pDlg->GetDlgItem(IDC_HTTPLIST);
//pListCtrl->SetItemText(iListNum,3,"");
//pListCtrl->SetItemText(iListNum,4,"");
pListCtrl->SetItemText(iListNum,5,GetCurrentDateTime());

HINTERNET hSession = InternetOpen( AfxGetAppName() , INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0 );

if (hSession == NULL)
{
  CListCtrl* pListCtrl = (CListCtrl*)pDlg->GetDlgItem(IDC_HTTPLIST);
  pListCtrl->SetItemText(iListNum,3,"Fail");
  pListCtrl->SetItemText(iListNum,4,"Open error");
  pListCtrl->SetItemText(iListNum,6,GetCurrentDateTime());
  return 1;
}

HINTERNET hConnect = InternetConnect(hSession,strServer,
  iPort,
  NULL,NULL,
  INTERNET_SERVICE_HTTP,0,0);

if (hConnect == NULL)
{
  InternetCloseHandle(hSession);
  CListCtrl* pListCtrl = (CListCtrl*)pDlg->GetDlgItem(IDC_HTTPLIST);
  pListCtrl->SetItemText(iListNum,3,"Fail");
  pListCtrl->SetItemText(iListNum,4,"Connect error");
  pListCtrl->SetItemText(iListNum,6,GetCurrentDateTime());
  return 1;
}

//LPCSTR acceptTypes = _T("*/*");
HINTERNET hRequest=HttpOpenRequest(hConnect,_T("GET"),strObject,
  NULL,NULL,
  NULL,
  INTERNET_FLAG_RELOAD,0
  );

if (hRequest == NULL)
{
  InternetCloseHandle(hConnect);
  InternetCloseHandle(hSession);

  pListCtrl->SetItemText(iListNum,3,"Fail");
  pListCtrl->SetItemText(iListNum,4,"OpenRequest error");
  pListCtrl->SetItemText(iListNum,6,GetCurrentDateTime());
  return 1;
}

if(!HttpSendRequest( hRequest, NULL, 0, NULL, 0))
{
  InternetCloseHandle(hRequest);
  InternetCloseHandle(hConnect);
  InternetCloseHandle(hSession);
  pListCtrl->SetItemText(iListNum,3,"Fail");
  pListCtrl->SetItemText(iListNum,4,"SendRequest error");
  pListCtrl->SetItemText(iListNum,6,GetCurrentDateTime());
  return 1;
}

char szCode[128] = {0};
DWORD buflen = 128;
BOOL bRet = FALSE;
bRet = HttpQueryInfo(hRequest,HTTP_QUERY_STATUS_CODE,szCode,&buflen,NULL);

if(strcmp(szCode,"200") == 0)
{
  //pListCtrl->SetItemText(iListNum,3,"Fail");
  pListCtrl->SetItemText(iListNum,4,"200");
}
else
{
  InternetCloseHandle(hRequest);
  InternetCloseHandle(hConnect);
  InternetCloseHandle(hSession);
  pListCtrl->SetItemText(iListNum,3,"Fail");
  pListCtrl->SetItemText(iListNum,4,szCode);
  pListCtrl->SetItemText(iListNum,6,GetCurrentDateTime());
  return 1;
}

byte Temp[MAXBLOCKSIZE] = {0};
ULONG Number = 1 ;

FILE * stream;
errno_t err;

if ((err = fopen_s(&stream, pFileName ,"wb")) == 0 )
{
  while (Number !=   0 )
  {
   InternetReadFile(hRequest, Temp, MAXBLOCKSIZE, & Number);
   // fprintf(stream, (const char*)Temp);
   fwrite(Temp, sizeof ( char ), Number , stream);
  }
  fclose( stream );

pListCtrl->SetItemText(iListNum,3,"Success");
}

InternetCloseHandle(hRequest);
InternetCloseHandle(hConnect);
InternetCloseHandle(hSession);

pListCtrl->SetItemText(iListNum,6,GetCurrentDateTime());
return 0;
}