#include <windows.h>
#include <wininet.h>
#include <stdio.h>

LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
HINSTANCE g_hInst;
LPSTR lpszClass="HttpClient";

int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance
					 ,LPSTR lpszCmdParam,int nCmdShow)
{
	HWND hWnd;
	MSG Message;
	WNDCLASS WndClass;
	g_hInst=hInstance;

	WndClass.cbClsExtra=0;
	WndClass.cbWndExtra=0;
	WndClass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
	WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);
	WndClass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
	WndClass.hInstance=hInstance;
	WndClass.lpfnWndProc=(WNDPROC)WndProc;
	WndClass.lpszClassName=lpszClass;
	WndClass.lpszMenuName=NULL;
	WndClass.style=CS_HREDRAW | CS_VREDRAW;
	RegisterClass(&WndClass);

	hWnd=CreateWindow(lpszClass,lpszClass,WS_OVERLAPPEDWINDOW,
		CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,
		NULL,(HMENU)NULL,hInstance,NULL);
	ShowWindow(hWnd,nCmdShow);

	while(GetMessage(&Message,0,0,0)) 
	{
		TranslateMessage(&Message);
		DispatchMessage(&Message);
	}
	return Message.wParam;
}

#define ID_EDIT1 100
#define ID_EDIT2 200
#define ID_BUTTON 300

HWND hEdit1;
HWND hEdit2;
HWND hButton;

int GetHttpFile(char *url)   
{   
	HINTERNET hInternet, hHttp;   
	HINTERNET hReq;
	HINTERNET hFile;  
	DWORD	size;
	DWORD ReadSize;   
	BOOL bResult;   
	int buff_cnt=0;   
	char buf[65000];
	char buf2[650000]={0,};
	DWORD dwWritten;
	char szBuf[256];

	hInternet = InternetOpen("HTTP Client",  INTERNET_OPEN_TYPE_PRECONFIG,  NULL,  NULL,  0);   

	hHttp=InternetConnect(hInternet, url,0,"","", INTERNET_SERVICE_HTTP, 0, 0);
	if (hHttp==NULL)
		return 0;

	hReq=HttpOpenRequest(hHttp,"GET","",NULL,NULL,NULL,0,0);
	HttpSendRequest(hReq,NULL,0,NULL,0);
	
	for(;;)   
	{   
		InternetQueryDataAvailable(hReq, &size,0,0);

		bResult = InternetReadFile( hReq,   buf,   size,   &ReadSize);   

		buf[ReadSize]=0;
		strcat(buf2, buf);
		
		if(ReadSize == 0)break;
	}   

	SetWindowText(hEdit1,buf2);

	memset(szBuf, 0, 256);
	GetCurrentDirectory(256, szBuf);
	strcat(szBuf, "\\index.html");
	
	hFile=CreateFile(szBuf, GENERIC_WRITE,0,NULL,
		CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
	WriteFile(hFile,buf2,strlen(buf2),&dwWritten,NULL);
	CloseHandle(hFile);

	InternetCloseHandle(hHttp);   
	InternetCloseHandle(hInternet);   
	return buff_cnt;   
}

LRESULT CALLBACK WndProc(HWND hWnd,UINT iMessage,WPARAM wParam,LPARAM lParam)
{
	HDC hdc;
	PAINTSTRUCT ps;

	char strMes[] = "À¥ ÁÖ¼Ò¸¦ ÀÔ·ÂÇÏ°í, ´Ù¿î·Îµå ¹öÆ°À» ´©¸£¼¼¿ä.";
	char szURL[256];

	switch(iMessage) 
	{
	case WM_CREATE:
		hEdit1=CreateWindow("edit",NULL,WS_CHILD | WS_VISIBLE | WS_BORDER | WS_VSCROLL |
			ES_MULTILINE,10,10,600,500,hWnd,(HMENU)ID_EDIT1,g_hInst,NULL);

		hEdit2 = CreateWindow("edit",NULL,WS_CHILD | WS_VISIBLE |
			WS_BORDER | ES_AUTOVSCROLL | ES_MULTILINE , 620 ,50 ,200, 20, hWnd,(HMENU)ID_EDIT2,g_hInst,NULL);

		hButton = CreateWindow("button","´Ù¿î·Îµå",WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
			830, 50, 80, 25, hWnd,(HMENU)ID_BUTTON, g_hInst,NULL);
		return 0;

	case WM_COMMAND:
		switch(LOWORD(wParam))
		{
			case ID_BUTTON:
					GetWindowText(hEdit2, szURL, 256);
					GetHttpFile(szURL);
				break;
		}
		return 0;
	case WM_SIZE:
		return 0;
	case WM_PAINT:
		hdc=BeginPaint(hWnd, &ps);
		TextOut(hdc, 620, 20, strMes, strlen(strMes));
		EndPaint(hWnd, &ps);
		return 0;
	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
	}
	return(DefWindowProc(hWnd,iMessage,wParam,lParam));
}