static char *recvdlg_id = 
	"@(#)Copyright (C) H.Shirouzu 1996-2002   recvdlg.cpp	Ver2.00";
/* ========================================================================
	Project  Name			: IP Messenger for Win32
	Module Name				: Receive Dialog
	Create					: 1996-06-01(Sat)
	Update					: 2002-11-03(Sun)
	Copyright				: H.Shirouzu
	Reference				: 
	======================================================================== */

#include <time.h>
#include "tlib.h"
#include "resource.h"
#include "ipmsg.h"
#include "msgstr.h"
#include "blowfish.h"

int TRecvDlg::createCnt = 0;

TRecvDlg::TRecvDlg(MsgMng *_msgMng, MsgBuf *_msg, THosts *_hosts, Cfg *_cfg, LogMng *_logmng) : TListDlg(RECEIVE_DIALOG), editSub(_cfg, this)
{
	msgMng		= _msgMng;
	cfg			= _cfg;
	openFlg		= FALSE;
	logmng		= _logmng;
	hosts		= _hosts;
	hEditFont	= NULL;
	hHeadFont	= NULL;
	fileObj		= NULL;
	shareInfo	= NULL;
	timerID		= 0;
	retryCnt	= 0;
	cryptCapa	= 0;
	createCnt++;
	::GetLocalTime(&recvTime);

	memset(&orgFont, 0, sizeof(orgFont));
	msg.Init(_msg);

	MakeListString(cfg, &msg.hostSub, hosts, head);

	if (msg.command & IPMSG_FILEATTACHOPT)
	{
		if ((shareInfo = DecodeShareMsg(msg.msgBuf + msg.exOffset)) != NULL)
		{
			fileObj = new RecvFileObj;
			memset(fileObj, 0, sizeof(RecvFileObj));
		}
	}

	status = TRUE;
	if (msg.command & IPMSG_ENCRYPTOPT)
		if ((status = DecryptMsg()) == FALSE)
			msgMng->Send(&msg.hostSub, IPMSG_SENDMSG|IPMSG_NOLOGOPT, DECRYPTERR_MSGSTR);

	if (status)
	{
		if ((msg.command & IPMSG_PASSWORDOPT) == 0 || cfg->PasswdLogCheck == FALSE)
			logmng->WriteRecvMsg(&msg, hosts, shareInfo);

		hAccel = ::LoadAccelerators(TApp::hI, (LPCSTR)IPMSG_ACCEL);
	}
}

TRecvDlg::~TRecvDlg()
{
	if (shareInfo) 
	{
		if (shareInfo->fileCnt > 0)
			msgMng->Send(&msg.hostSub, IPMSG_RELEASEFILES, msg.packetNo);
		// 偁偲偱庴怣廔椆捠抦偺僐乕僪傪擖傟傞
		FreeDecodeShareMsg(shareInfo);
	}
	if (fileObj)
	{
		if (fileObj->conInfo)
			delete fileObj->conInfo;
		delete fileObj;
	}

	if (hHeadFont)
		::DeleteObject(hHeadFont);
	if (hEditFont)
		::DeleteObject(hEditFont);

	createCnt--;
}

/*
	儊僢僙乕僕偺暅崋壔
*/
BOOL TRecvDlg::DecryptMsg()
{
	HCRYPTKEY	hKey=0, hExKey=0;
	char		*capa_hex, *skey_hex, *msg_hex, *p;
	BYTE		skey[MAX_BUF];
	int			len, msgLen;
	HCRYPTPROV	target_csp;

	if ((capa_hex = separate_token(msg.msgBuf, ':', &p)) == NULL)
		return	FALSE;
	cryptCapa = strtoul(capa_hex, 0, 16);
	target_csp = (cryptCapa & IPMSG_RSA_1024) && cfg->pubKey.Key() ? cfg->hCsp : cfg->hSmallCsp;

	if ((skey_hex = separate_token(NULL, ':', &p)) == NULL)
		return	FALSE;
	if ((msg_hex = separate_token(NULL, 0, &p)) == NULL)
		return	FALSE;

	if (cryptCapa & (IPMSG_BLOWFISH_128ALL)) {	// blow fish
		hexstr2bin_bigendian(skey_hex, skey, sizeof(skey), &len);
		// 岞奐尞庢摼
		if (!pCryptGetUserKey(target_csp, AT_KEYEXCHANGE, &hExKey))
			return	wsprintf(msg.msgBuf, "CryptGetUserKey Err(%X)", GetLastError()), FALSE;
		if (!pCryptDecrypt(hExKey, 0, TRUE, 0, (BYTE *)skey, (DWORD *)&len))
			return	wsprintf(msg.msgBuf, "CryptDecrypt Err(%X)", GetLastError()), FALSE;
		pCryptDestroyKey(hExKey);

		CBlowFish	bl;
		bl.Initialize(skey, len, CBlowFish::CBC);
		hexstr2bin(msg_hex, (BYTE *)msg.msgBuf, sizeof(msg.msgBuf), &msgLen);
		bl.Decode((BYTE *)msg.msgBuf, (BYTE *)msg.msgBuf, msgLen);
	}
	else {	// RC2
	// Skey Blob 傪嶌傞
		skey[0] = SIMPLEBLOB;
		skey[1] = CUR_BLOB_VERSION;
		*(WORD *)(skey + 2) = 0;
		*(ALG_ID *)(skey + 4) = CALG_RC2;
		*(ALG_ID *)(skey + 8) = CALG_RSA_KEYX;
		((msg.command & IPMSG_ENCRYPTOPT) ? hexstr2bin_bigendian : hexstr2bin)(skey_hex, skey + SKEY_HEADER_SIZE, sizeof(skey) - SKEY_HEADER_SIZE, &len);

	// 僙僢僔儑儞僉乕偺 import
		if (!pCryptImportKey(target_csp, skey, len + SKEY_HEADER_SIZE, 0, 0, &hKey))
			return	wsprintf(msg.msgBuf, "CryptImportKey Err(%X)", GetLastError()), FALSE;

	// 僉乕桳岠挿傪128bit偵
		if (cryptCapa & IPMSG_RC2_128) {
			DWORD	val = 128;
			if (!pCryptSetKeyParam(hKey, KP_EFFECTIVE_KEYLEN, (BYTE *)&val, 0))
				return	wsprintf(msg.msgBuf, "CryptSetKeyParam Err(%X)", GetLastError()), FALSE;
		}
	// 儊僢僙乕僕偺 Decrypt
		hexstr2bin(msg_hex, (BYTE *)msg.msgBuf, sizeof(msg.msgBuf), &msgLen);
		if (!pCryptDecrypt(hKey, 0, TRUE, 0, (BYTE *)msg.msgBuf, (DWORD *)&msgLen))
			return	wsprintf(msg.msgBuf, "CryptDecrypt Err(%X)", GetLastError()), FALSE;
		pCryptDestroyKey(hKey);
	}
	// UNIX 宍幃偺夵峴傪曄姺
	if (cryptCapa & (IPMSG_BLOWFISH_128|IPMSG_RC2_128|IPMSG_RC2_40))
		MsgMng::UnixNewLineToLocal(msg.msgBuf, msg.msgBuf, sizeof(msg.msgBuf));

	return	TRUE;
}


BOOL TRecvDlg::EvCreate(LPARAM lParam)
{
	SetDlgIcon(hWnd);

	SetDlgItemText(RECV_HEAD, head);

	if (msg.command & IPMSG_BROADCASTOPT)
		SetDlgItemText(RECV_TITLE, BROADCAST_MSGSTR);
	else if (msg.command & IPMSG_MULTICASTOPT)
		SetDlgItemText(RECV_TITLE, MULTICAST_MSGSTR);
	else
		SetDlgItemText(RECV_TITLE, UNICAST_MSGSTR);

	if (msg.command & IPMSG_AUTORETOPT)
		SetDlgItemText(RECV_TITLE, UNIABSENCE_MSGSTR);

	char	buf[MAX_LISTBUF];
	if (msg.command & IPMSG_ENCRYPTOPT)
	{
		::GetWindowText(hWnd, buf, sizeof(buf));
		strcat(buf, (cryptCapa & (IPMSG_BLOWFISH_128ALL|IPMSG_RC2_128ALL)) ? " +" : " -");
		SetWindowText(buf);
	}

	wsprintf(head, "at %s", Ctime(&recvTime));
	SetDlgItemText(RECV_HEAD2, head);

	SetDlgItemText(RECV_EDIT, msg.msgBuf);

	if (msg.command & IPMSG_SECRETOPT)
		::ShowWindow(GetDlgItem(RECV_EDIT), SW_HIDE), ::ShowWindow(GetDlgItem(QUOTE_CHECK), SW_HIDE);
	else {
		::ShowWindow(GetDlgItem(OPEN_BUTTON), SW_HIDE), openFlg = TRUE;
		if (shareInfo)
			SetFileButton(this, FILE_BUTTON, shareInfo);
	}

	if (msg.command & IPMSG_FILEATTACHOPT)
	{
		GetDlgItemText(OPEN_BUTTON, buf, sizeof(buf));
		strcat(buf, " " FILEATTACH_MSGSTR);
		SetDlgItemText(OPEN_BUTTON, buf);
	}
	if (msg.command & IPMSG_PASSWORDOPT)
	{
		GetDlgItemText(OPEN_BUTTON, buf, sizeof(buf));
		strcat(buf, KEYOPEN_MSGSTR);
		SetDlgItemText(OPEN_BUTTON, buf);
	}

	if (cfg->QuoteCheck == TRUE)
		SendDlgItemMessage(QUOTE_CHECK, BM_SETCHECK, cfg->QuoteCheck, 0);

	if (cfg->AbnormalButton)
		SetDlgItemText(IDOK, INTERCEPT_MSGSTR);

	SetFont();
	SetSize();

	HMENU	hMenu = ::GetSystemMenu(hWnd, FALSE);
	::AppendMenu(hMenu, MF_SEPARATOR, NULL, NULL);
	SetMainMenu(hMenu);

	if (IsNewShell() != TRUE)
	{
		ULONG	style = GetWindowLong(GWL_STYLE);
		style &= 0xffffff0f;
		style |= 0x00000080;
		SetWindowLong(GWL_STYLE, style);
	}
	SetForegroundWindow();
	editSub.CreateByWnd(GetDlgItem(RECV_EDIT));

	if (msg.command & IPMSG_NOADDLISTOPT)
		::EnableWindow(GetDlgItem(IDOK), FALSE);
	EvSize(SIZE_RESTORED, 0, 0);

	return	TRUE;
}

BOOL TRecvDlg::EvCommand(WORD wNotifyCode, WORD wID, LPARAM hWndCtl)
{
	switch (wID)
	{
	case IDOK:
		{
			if (openFlg && ::IsDlgButtonChecked(hWnd, QUOTE_CHECK))
			{
				DWORD	startStr, endStr, ret;
				ret = SendDlgItemMessage(RECV_EDIT, EM_GETSEL, (WPARAM)&startStr, (LPARAM)&endStr);
				GetDlgItemText(RECV_EDIT, msg.msgBuf, sizeof(msg.msgBuf));
				if (startStr != endStr)
				{
					memmove(msg.msgBuf, msg.msgBuf + startStr, (int)(endStr - startStr));
					msg.msgBuf[endStr - startStr] = 0;
				}
			}
			else
				*msg.msgBuf = 0;
			::PostMessage(GetMainWnd(), WM_SENDDLG_OPEN, (WPARAM)hWnd, (LPARAM)&msg);
		}
		return	TRUE;

	case IDCANCEL:
		if ((GetAsyncKeyState(VK_ESCAPE) & 0x8000) == 0)
		{
			if (fileObj && fileObj->conInfo)
				return	EvCommand(0, FILE_BUTTON, 0), TRUE;
			if (timerID == 0)
				::PostMessage(GetMainWnd(), WM_RECVDLG_EXIT, 0, (LPARAM)this);
			else
				TWin::Show(SW_HIDE);
		}
		return	TRUE;

	case MISC_ACCEL:
	case HIDE_ACCEL:
		::PostMessage(GetMainWnd(), WM_COMMAND, wID, 0);
		return	TRUE;

	case ALLSELECT_ACCEL:
		SendDlgItemMessage(RECV_EDIT, EM_SETSEL, 0, (LPARAM)-1);
		return	TRUE;

	case OPEN_BUTTON:
		if (openFlg)
			return	TRUE;

		if (msg.command & IPMSG_PASSWORDOPT)
		{
			TPasswordDlg	dlg(cfg, this);

			if (dlg.Exec() != TRUE)
				return	TRUE;

			if (cfg->PasswdLogCheck == TRUE)
				logmng->WriteRecvMsg(&msg, hosts, shareInfo);
		}
		openFlg = TRUE;

		::ShowWindow(GetDlgItem(RECV_EDIT), SW_SHOW);
		::ShowWindow(GetDlgItem(QUOTE_CHECK), SW_SHOW);
		::ShowWindow(GetDlgItem(OPEN_BUTTON), SW_HIDE);
		::EnableWindow(GetDlgItem(OPEN_BUTTON), FALSE);

		if (shareInfo)
			SetFileButton(this, FILE_BUTTON, shareInfo), EvSize(SIZE_RESTORED, 0, 0);

		if (msg.command & IPMSG_SECRETOPT)
		{
			char	buf[MAX_LISTBUF];
			wsprintf(buf, "%ld", msg.packetNo);
			packetNo = msgMng->MakeMsg(readMsgBuf, IPMSG_READMSG|(msg.command & IPMSG_READCHECKOPT), buf);
			msgMng->UdpSend(msg.hostSub.addr, msg.hostSub.portNo, readMsgBuf);
			if (msg.command & IPMSG_READCHECKOPT)
				timerID = ::SetTimer(hWnd, IPMSG_RECV_TIMER, cfg->RetryMSec, NULL);
		}
		return	TRUE;

	case FILE_BUTTON:
		if (fileObj && fileObj->conInfo)
		{
			if (fileObj->hThread)
				::SuspendThread(fileObj->hThread);
			int ret = MessageBox(TRANSSTOP_MSGSTR, MSG_STR, MB_OKCANCEL);
			if (fileObj->hThread)
				::ResumeThread(fileObj->hThread);
			if (ret == IDOK)
				if (fileObj->conInfo) EndRecvFile(TRUE);
		}
		else if (fileObj) {
			TSaveCommonDlg	dlg(shareInfo, cfg, this);
			if (dlg.Exec() == TRUE)
			{
				memset(fileObj, 0, sizeof(RecvFileObj));
				strncpyz(fileObj->saveDir, cfg->lastSaveDir, MAX_PATH);
				SaveFile();
			}
		}
		break;

	case MENU_SAVEPOS:
		if ((cfg->RecvSavePos = !cfg->RecvSavePos) != 0)
		{
			GetWindowRect(&rect);
			cfg->RecvXpos = rect.left;
			cfg->RecvYpos = rect.top;
		}
		cfg->WriteRegistry(CFG_WINSIZE);
		return	TRUE;

	case MENU_SAVESIZE:
		GetWindowRect(&rect);
		cfg->RecvXdiff = (rect.right - rect.left) - (orgRect.right - orgRect.left);
		cfg->RecvYdiff = (rect.bottom - rect.top) - (orgRect.bottom - orgRect.top);
		cfg->WriteRegistry(CFG_WINSIZE);
		return	TRUE;

	case MENU_NORMALSIZE:
		GetWindowRect(&rect);
		MoveWindow(rect.left, rect.top, orgRect.right - orgRect.left, orgRect.bottom - orgRect.top, TRUE);
		return	TRUE;

	case MENU_EDITFONT: case MENU_HEADFONT:
		CHOOSEFONT	cf;
		LOGFONT		tmpFont, *targetFont;

		targetFont = wID == MENU_EDITFONT ? &cfg->RecvEditFont : &cfg->RecvHeadFont;
		memset(&cf, 0, sizeof(cf));
		cf.lStructSize	= sizeof(cf);
		cf.hwndOwner	= hWnd;
		cf.lpLogFont	= &(tmpFont = *targetFont);
		cf.Flags		= CF_SCREENFONTS | CF_INITTOLOGFONTSTRUCT | CF_SHOWHELP;
		cf.nFontType	= SCREEN_FONTTYPE;
		if (::ChooseFont(&cf))
		{
			*targetFont = tmpFont;
			SetFont();
			::InvalidateRgn(hWnd, NULL, TRUE);
		}
		cfg->WriteRegistry(CFG_FONT);
		return	TRUE;

	case MENU_DEFAULTFONT:
		cfg->RecvHeadFont = orgFont;
		cfg->RecvEditFont = orgFont;
		SetFont();
		::InvalidateRgn(hWnd, NULL, TRUE);
		cfg->WriteRegistry(CFG_FONT);
		return	TRUE;
	}

	return	FALSE;
}

BOOL TRecvDlg::SaveFile(void)
{
	int		target;
	for (target=0; target < shareInfo->fileCnt; target++)
		if (shareInfo->fileInfo[target]->IsSelected())
			break;
	if (target == shareInfo->fileCnt)
		return	FALSE;

	memset(fileObj, 0, (char *)&fileObj->totalTrans - (char *)fileObj);
	fileObj->conInfo = new ConnectInfo;
	fileObj->fileInfo = shareInfo->fileInfo[target];
	fileObj->isDir = GET_MODE(fileObj->fileInfo->Attr()) == IPMSG_FILE_DIR ? TRUE : FALSE;
	fileObj->status = fileObj->isDir ? FS_DIRFILESTART : FS_TRANSFILE;
	fileObj->hFile = INVALID_HANDLE_VALUE;
	if (fileObj->isDir)
		strncpyz(fileObj->path, fileObj->saveDir, MAX_PATH);

	if (ConnectRecvFile() == TRUE)
		SetDlgItemText(FILE_BUTTON, PREPARETRANS_MSGSTR);
	else {
		delete fileObj->conInfo;
		fileObj->conInfo = NULL;