1.0.0.1

Author: DeviceObject

Download.cpp

@@ -0,0 +1,100 @@
+#include "ForgeHttp.h"
+
+BOOLEAN CheckFileExist(PCHAR lpszPath)
+{
+	if (GetFileAttributesA(lpszPath) == 0xFFFFFFFF && GetLastError() == ERROR_FILE_NOT_FOUND )
+	{
+		return FALSE;
+	}
+	else
+	{
+		return TRUE;
+	}
+}
+BOOLEAN DownloadFileFromUrl(PCHAR pUrl,PCHAR pSaveFileName)
+{
+	BOOLEAN bRet;
+	HINTERNET hInternet;
+	HINTERNET hOpenUrl;
+	ULONG ulStatusCode;
+	ULONG ulStatusSize;
+	ULONG ulSize;
+	ULONG ulLengthSize;
+	HANDLE hLocalFile;
+	BOOLEAN bIsWrite;
+	ULONG ulRetReadBytesSize,ulRetWriteBytesSize;
+	CHAR Buffer[0x1000];
+
+
+	bRet = FALSE;
+	hInternet = NULL;
+	hOpenUrl = NULL;
+	bIsWrite = TRUE;
+	ulRetReadBytesSize = 0;
+	ulRetWriteBytesSize = 0;
+
+	do 
+	{
+		hInternet = InternetOpenA(NULL,INTERNET_OPEN_TYPE_DIRECT,NULL,NULL,0);
+		if (NULL == hInternet)
+		{
+			break;
+		}
+		hOpenUrl = InternetOpenUrlA(hInternet,pUrl,NULL,0,INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_PRAGMA_NOCACHE,0);
+		if (NULL == hOpenUrl)
+		{
+			InternetCloseHandle(hInternet);
+			break;
+		}
+		ulStatusSize = sizeof(ulStatusCode);
+		HttpQueryInfoA(hOpenUrl,HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER,&ulStatusCode,&ulStatusSize,NULL);
+		if  (200 != ulStatusCode)
+		{
+			InternetCloseHandle(hOpenUrl);
+			InternetCloseHandle(hInternet);
+			break;
+		}
+		ulLengthSize = sizeof(ulSize);
+		HttpQueryInfoA(hOpenUrl,HTTP_QUERY_CONTENT_LENGTH | HTTP_QUERY_FLAG_NUMBER,&ulSize,&ulLengthSize,NULL);
+		if (ulSize < 0)
+		{
+			InternetCloseHandle(hOpenUrl);
+			InternetCloseHandle(hInternet);
+			break;
+		}
+		hLocalFile = CreateFileA(pSaveFileName,GENERIC_WRITE | GENERIC_READ,FILE_SHARE_READ | FILE_SHARE_WRITE,0,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0);
+		if (hLocalFile == INVALID_HANDLE_VALUE)
+		{
+			InternetCloseHandle(hOpenUrl);
+			InternetCloseHandle(hInternet);
+			break;
+		}
+		while (TRUE)
+		{
+			InternetReadFile(hOpenUrl,Buffer,sizeof(Buffer),&ulRetReadBytesSize);
+			if (ulRetReadBytesSize == 0)
+			{
+				break;
+			}
+			bIsWrite = WriteFile(hLocalFile,Buffer,ulRetReadBytesSize,&ulRetWriteBytesSize,NULL);
+			if (bIsWrite == 0)
+			{
+				break;
+			}
+		}
+		bRet = TRUE;
+	} while (0);
+	if (hLocalFile)
+	{
+		CloseHandle(hLocalFile);
+	}
+	if (hOpenUrl)
+	{
+		InternetCloseHandle(hOpenUrl);
+	}
+	if (hInternet)
+	{
+		InternetCloseHandle(hInternet);
+	}
+	return bRet;
+}