//this file is part of eMule
//Copyright (C)2002-2007 Merkur ( strEmail.Format("%s@%s", "devteam", "emule-project.net") / http://www.emule-project.net )
//
//This program is free software; you can redistribute it and/or
//modify it under the terms of the GNU General Public License
//as published by the Free Software Foundation; either
//version 2 of the License, or (at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#include "stdafx.h"
#include "emule.h"
#include "emuleDlg.h"
#include "ServerWnd.h"
#include "ServerListCtrl.h"
#include "IPFilterDlg.h"
#include "IPFilter.h"
#include "OtherFunctions.h"
#include "Preferences.h"
#include "MenuCmds.h"
#include "ZipFile.h"
#include "GZipFile.h"
#include "RarFile.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif


//////////////////////////////////////////////////////////////////////////////
// COLUMN_INIT -- List View Columns

enum EIPFilterCols
{
	IPFILTER_COL_START = 0,
	IPFILTER_COL_END,
	IPFILTER_COL_LEVEL,
	IPFILTER_COL_HITS,
	IPFILTER_COL_DESC
};

static LCX_COLUMN_INIT _aColumns[] =
{
	{ IPFILTER_COL_START,	_T("Start"),		IDS_IP_START,	LVCFMT_LEFT,	-1, 0, ASCENDING,  NONE, _T("255.255.255.255") },
	{ IPFILTER_COL_END,		_T("End"),			IDS_IP_END,		LVCFMT_LEFT,	-1, 1, ASCENDING,  NONE, _T("255.255.255.255")},
	{ IPFILTER_COL_LEVEL,	_T("Level"),		IDS_IP_LEVEL,	LVCFMT_RIGHT,	-1, 2, ASCENDING,  NONE, _T("999") },
	{ IPFILTER_COL_HITS,	_T("Hits"),			IDS_IP_HITS,	LVCFMT_RIGHT,	-1, 3, DESCENDING, NONE, _T("99999") },
	{ IPFILTER_COL_DESC,	_T("Description"),	IDS_IP_DESC,	LVCFMT_LEFT,	-1, 4, ASCENDING,  NONE, _T("long long long long long long long long file name") },
};

#define	PREF_INI_SECTION	_T("IPFilterDlg")

int CIPFilterDlg::sm_iSortColumn = IPFILTER_COL_HITS;

IMPLEMENT_DYNAMIC(CIPFilterDlg, CDialog)

BEGIN_MESSAGE_MAP(CIPFilterDlg, CResizableDialog)
	ON_WM_DESTROY()
	ON_NOTIFY(LVN_COLUMNCLICK, IDC_IPFILTER, OnLvnColumnClickIPFilter)
	ON_NOTIFY(LVN_KEYDOWN, IDC_IPFILTER, OnLvnKeyDownIPFilter)
	ON_BN_CLICKED(IDC_REMOVE, OnBnClickedDelete)
	ON_BN_CLICKED(IDC_APPEND, OnBnClickedAppend)
	ON_COMMAND(MP_COPYSELECTED, OnCopyIPFilter)
	ON_COMMAND(MP_REMOVE, OnDeleteIPFilter)
	ON_COMMAND(MP_SELECTALL, OnSelectAllIPFilter)
	ON_COMMAND(MP_FIND, OnFind)
	ON_BN_CLICKED(IDC_SAVE, OnBnClickedSave)
	ON_NOTIFY(LVN_GETDISPINFO, IDC_IPFILTER, OnLvnGetDispInfoIPFilter)
	ON_NOTIFY(LVN_DELETEITEM, IDC_IPFILTER, OnLvnDeleteItemIPFilter)
END_MESSAGE_MAP()

CIPFilterDlg::CIPFilterDlg(CWnd* pParent /*=NULL*/)
	: CResizableDialog(CIPFilterDlg::IDD, pParent)
{
	m_uIPFilterItems = 0;
	m_ppIPFilterItems = NULL;
	m_icoDlg = NULL;
	m_pMenuIPFilter = NULL;
	m_ulFilteredIPs = 0;
	m_ipfilter.m_pParent = this;
	m_ipfilter.SetRegistryKey(PREF_INI_SECTION);
	m_ipfilter.SetRegistryPrefix(_T("IPfilters_"));
	m_ipfilter.m_pfnFindItem = FindItem;
	m_ipfilter.m_lFindItemParam = (DWORD_PTR)this;
}

CIPFilterDlg::~CIPFilterDlg()
{
	free(m_ppIPFilterItems);
	delete m_pMenuIPFilter;
	sm_iSortColumn = m_ipfilter.GetSortColumn();
	if (m_icoDlg)
		VERIFY( ::DestroyIcon(m_icoDlg) );
}

void CIPFilterDlg::DoDataExchange(CDataExchange* pDX)
{
	CResizableDialog::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_IPFILTER, m_ipfilter);
}

static int _lParamSort = 0;

int __cdecl CompareIPFilterItems(const void* lParam1, const void* lParam2)
{
#define COMPARE_NUM( a, b ) ((a) < (b))			\
							  ? -1				\
							  : ( ((b) < (a))	\
									? 1			\
									: 0			\
								)

	int iResult;

	if (_lParamSort == IPFILTER_COL_START)
	{
		iResult = COMPARE_NUM((*((const SIPFilter**)lParam1))->start, (*((const SIPFilter**)lParam2))->start);
	}
	else if (_lParamSort == IPFILTER_COL_END)
	{
		iResult = COMPARE_NUM((*((const SIPFilter**)lParam1))->end, (*((const SIPFilter**)lParam2))->end);
	}
	else if (_lParamSort == IPFILTER_COL_LEVEL)
	{
		iResult = COMPARE_NUM((*((const SIPFilter**)lParam1))->level, (*((const SIPFilter**)lParam2))->level);
	}
	else if (_lParamSort == IPFILTER_COL_HITS)
	{
		iResult = COMPARE_NUM((*((const SIPFilter**)lParam1))->hits, (*((const SIPFilter**)lParam2))->hits);
	}
	else if (_lParamSort == IPFILTER_COL_DESC)
	{
		iResult = stricmp/*CompareLocaleStringNoCase*/((*((const SIPFilter**)lParam1))->desc, (*((const SIPFilter**)lParam2))->desc);
	}
	else
	{
		ASSERT(0);
		iResult = 0;
	}

#undef COMPARE_NUM

	if (_aColumns[_lParamSort].eSortOrder == DESCENDING)
		return -iResult;
	else
		return iResult;
}

void CIPFilterDlg::SortIPFilterItems()
{
	// Update (sort, if needed) the listview items
	if (m_ipfilter.GetSortColumn() != -1)
	{
		_lParamSort = m_ipfilter.GetSortColumn();
		qsort((void*)m_ppIPFilterItems, m_uIPFilterItems, sizeof(*m_ppIPFilterItems), CompareIPFilterItems);
	}
}

void CIPFilterDlg::OnLvnColumnClickIPFilter(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMLISTVIEW pNMLV = reinterpret_cast<LPNMLISTVIEW>(pNMHDR);
	m_ipfilter.UpdateSortOrder(pNMLV, ARRSIZE(_aColumns), _aColumns);
	SortIPFilterItems();
	
	// Update(-1) doesn't works on vista anymore
	m_ipfilter.SetRedraw(FALSE);
	for (int i = 0; i != m_ipfilter.GetItemCount(); i++)
		m_ipfilter.Update(i);
	m_ipfilter.SetRedraw(TRUE);

	*pResult = 0;
}

BOOL CIPFilterDlg::OnInitDialog()
{
	CResizableDialog::OnInitDialog();
	InitWindowStyles(this);

	AddAnchor(IDC_IPFILTER, TOP_LEFT, BOTTOM_RIGHT);
	AddAnchor(IDC_TOTAL_IPFILTER_LABEL, BOTTOM_LEFT);
	AddAnchor(IDC_TOTAL_IPFILTER, BOTTOM_LEFT);
	AddAnchor(IDC_TOTAL_IPS_LABEL, BOTTOM_LEFT);
	AddAnchor(IDC_TOTAL_IPS, BOTTOM_LEFT);
	AddAnchor(IDC_REMOVE, BOTTOM_RIGHT);
	AddAnchor(IDC_APPEND, BOTTOM_RIGHT);
	AddAnchor(IDC_SAVE, BOTTOM_RIGHT);
	AddAnchor(IDOK, BOTTOM_RIGHT);
	EnableSaveRestore(PREF_INI_SECTION);

	ASSERT( m_ipfilter.GetStyle() & LVS_OWNERDATA );
	// Win98: Explicitly set to Unicode to receive Unicode notifications.
	m_ipfilter.SendMessage(CCM_SETUNICODEFORMAT, TRUE);
	m_ipfilter.SetExtendedStyle(LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES | LVS_EX_INFOTIP);
	m_ipfilter.EnableHdrCtrlSortBitmaps();
	m_ipfilter.ReadColumnStats(ARRSIZE(_aColumns), _aColumns);
	m_ipfilter.CreateColumns(ARRSIZE(_aColumns), _aColumns);
  	m_ipfilter.InitColumnOrders(ARRSIZE(_aColumns), _aColumns);
	m_ipfilter.UpdateSortColumn(ARRSIZE(_aColumns), _aColumns);

	SetIcon(m_icoDlg = theApp.LoadIcon(_T("IPFilter")), FALSE);

	InitIPFilters();
	
	m_pMenuIPFilter = new CMenu();
	if (m_pMenuIPFilter->CreatePopupMenu())
	{
		m_pMenuIPFilter->AppendMenu(MF_ENABLED | MF_STRING, MP_COPYSELECTED, GetResString(IDS_COPY));
		m_pMenuIPFilter->AppendMenu(MF_ENABLED | MF_STRING, MP_REMOVE, GetResString(IDS_REMOVE));
		m_pMenuIPFilter->AppendMenu(MF_SEPARATOR);
		m_pMenuIPFilter->AppendMenu(MF_ENABLED | MF_STRING, MP_SELECTALL, GetResString(IDS_SELECTALL));
		m_pMenuIPFilter->AppendMenu(MF_SEPARATOR);
		m_pMenuIPFilter->AppendMenu(MF_ENABLED | MF_STRING, MP_FIND, GetResString(IDS_FIND));
	}
	m_ipfilter.m_pMenu = m_pMenuIPFilter;
	m_ipfilter.m_pParent = this;

	// localize
	SetWindowText(GetResString(IDS_IPFILTER));
	SetDlgItemText(IDC_STATICIPLABEL,GetResString(IDS_IP_RULES));
	SetDlgItemText(IDC_TOTAL_IPFILTER_LABEL,GetResString(IDS_TOTAL_IPFILTER_LABEL));
	SetDlgItemText(IDC_TOTAL_IPS_LABEL,GetResString(IDS_TOTAL_IPS_LABEL));
	SetDlgItemText(IDC_REMOVE,GetResString(IDS_DELETESELECTED));
	SetDlgItemText(IDC_APPEND,GetResString(IDS_APPEND));
	SetDlgItemText(IDC_SAVE,GetResString(IDS_SAVE));
	SetDlgItemText(IDOK,GetResString(IDS_FD_CLOSE));

	return TRUE;  // return TRUE unless you set the focus to a control
				  // EXCEPTION: OCX Property Pages should return FALSE
}

void CIPFilterDlg::InitIPFilters()
{
	CWaitCursor curWait;

	m_uIPFilterItems = 0;
	free(m_ppIPFilterItems);
	m_ppIPFilterItems = NULL;

	const CIPFilterArray& ipfilter = theApp.ipfilter->GetIPFilter();
	m_uIPFilterItems = ipfilter.GetCount();
	m_ppIPFilterItems = (const SIPFilter**)malloc(sizeof(*m_ppIPFilterItems) * m_uIPFilterItems);

	m_ulFilteredIPs = 0;
	for (UINT i = 0; i < m_uIPFilterItems; i++)
	{
		const SIPFilter* pFilter = ipfilter[i];
		m_ppIPFilterItems[i] = pFilter;
		m_ulFilteredIPs += pFilter->end - pFilter->start + 1;
	}
	SortIPFilterItems();
	m_ipfilter.SetItemCount(m_uIPFilterItems);
	SetDlgItemText(IDC_TOTAL_IPFILTER, GetFormatedUInt(m_uIPFilterItems));
	SetDlgItemText(IDC_TOTAL_IPS, GetFormatedUInt(m_ulFilteredIPs));
}

void CIPFilterDlg::OnLvnGetDispInfoIPFilter(NMHDR *pNMHDR, LRESULT *pResult)
{
	NMLVDISPINFO* pDispInfo = reinterpret_cast<NMLVDISPINFO*>(pNMHDR);
	if (pDispInfo->item.mask & LVIF_TEXT) // *have* to check that flag!!
	{
		switch (pDispInfo->item.iSubItem)
		{
			case IPFILTER_COL_START:
				if (pDispInfo->item.cchTextMax > 0){
					_tcsncpy(pDispInfo->item.pszText, ipstr(htonl(m_ppIPFilterItems[pDispInfo->item.iItem]->start)), pDispInfo->item.cchTextMax);
					pDispInfo->item.pszText[pDispInfo->item.cchTextMax - 1] = _T('\0');
				}
				break;
			case IPFILTER_COL_END:
				if (pDispInfo->item.cchTextMax > 0){
					_tcsncpy(pDispInfo->item.pszText, ipstr(htonl(m_ppIPFilterItems[pDispInfo->item.iItem]->end)), pDispInfo->item.cchTextMax);
					pDispInfo->item.pszText[pDispInfo->item.cchTextMax - 1] = _T('\0');
				}
				break;
			case IPFILTER_COL_LEVEL:
				if (pDispInfo->item.cchTextMax > 0){
					_tcsncpy(pDispInfo->item.pszText, _itot(m_ppIPFilterItems[pDispInfo->item.iItem]->level, pDispInfo->item.pszText, 10), pDispInfo->item.cchTextMax);
					pDispInfo->item.pszText[pDispInfo->item.cchTextMax - 1] = _T('\0');
				}
				break;
			case IPFILTER_COL_HITS:
				if (pDispInfo->item.cchTextMax > 0){
					_tcsncpy(pDispInfo->item.pszText, _itot(m_ppIPFilterItems[pDispInfo->item.iItem]->hits, pDispInfo->item.pszText, 10), pDispInfo->item.cchTextMax);
					pDispInfo->item.pszText[pDispInfo->item.cchTextMax - 1] = _T('\0');
				}
				break;
			case IPFILTER_COL_DESC:
				if (pDispInfo->item.cchTextMax > 0){
					USES_CONVERSION;
					_tcsncpy(pDispInfo->item.pszText, A2T(m_ppIPFilterItems[pDispInfo->item.iItem]->desc), pDispInfo->item.cchTextMax);
					pDispInfo->item.pszText[pDispInfo->item.cchTextMax - 1] = _T('\0');
				}
				break;
		}
	}
	*pResult = 0;
}

void CIPFilterDlg::OnCopyIPFilter()
{
	CWaitCursor curWait;
	int iSelected = 0;
	CString strData;
	POSITION pos = m_ipfilter.GetFirstSelectedItemPosition();
	while (pos)
	{
		int iItem = m_ipfilter.GetNextSelectedItem(pos);
		if (!strData.IsEmpty())
			strData += _T("\r\n");

		strData.AppendFormat(_T("%-15s - %-15s  Hits=%-5s  %s"), 
				m_ipfilter.GetItemText(iItem, IPFILTER_COL_START),
				m_ipfilter.GetItemText(iItem, IPFILTER_COL_END),
				m_ipfilter.GetItemText(iItem, IPFILTER_COL_HITS),
				m_ipfilter.GetItemText(iItem, IPFILTER_COL_DESC));
		iSelected++;
	}

	if (!strData.IsEmpty())
	{
		if (iSelected > 1)
			strData += _T("\r\n");
		theApp.CopyTextToClipboard(strData);
	}
}

void CIPFilterDlg::OnSelectAllIPFilter()
{
	m_ipfilter.SelectAllItems();
}

void CIPFilterDlg::OnBnClickedAppend()
{
	// Save/Restore the current directory
	TCHAR szCurDir[MAX_PATH];
	DWORD dwCurDirLen = GetCurrentDirectory(_countof(szCurDir), szCurDir);
	if (dwCurDirLen == 0 || dwCurDirLen >= _countof(szCurDir))
		szCurDir[0] = _T('\0');

	CString strFilePath;			  // Do NOT localize that string
	if (DialogBrowseFile(strFilePath, _T("All IP Filter Files (*ipfilter.dat;*ip.prefix;*.p2b;*.p2p;*.p2p.txt;*.zip;*.gz;*.rar)|*ipfilter.dat;*ip.prefix;*.p2b;*.p2p;*.p2p.txt;*.zip;*.gz;*.rar|eMule IP Filter Files (*ipfilter.dat;*ip.prefix)|*ipfilter.dat;*ip.prefix|Peer Guardian Files (*.p2b;*.p2p;*.p2p.txt)|*.p2b;*.p2p;*.p2p.txt|Text Files (*.txt)|*.txt|ZIP Files (*.zip;*.gz)|*.zip;*.gz|RAR Files (*.rar)|*.rar|All Files (*.*)|*.*||")))
	{
		CWaitCursor curWait;

		TCHAR szExt[_MAX_EXT];
		_tsplitpath(strFilePath, NULL, NULL, NULL, szExt);
		_tcslwr(szExt);
		bool bIsArchiveFile = _tcscmp(szExt, _T(".zip"))==0 || _tcscmp(szExt, _T(".rar"))==0 || _tcscmp(szExt, _T(".gz"))==0;
		bool bExtractedArchive = false;

		CString strTempUnzipFilePath;
		if (_tcscmp(szExt, _T(".zip")) == 0)
		{
			CZIPFile zip;
			if (zip.Open(strFilePath))
			{
				CZIPFile::File* zfile = zip.GetFile(_T("guarding.p2p"));
				if (zfile == NULL)
					zfile = zip.GetFile(_T("ipfilter.dat"));
				if (zfile)
				{
					_tmakepathlimit(strTempUnzipFilePath.GetBuffer(MAX_PATH), NULL, thePrefs.GetMuleDirectory(EMULE_CONFIGDIR), DFLT_IPFILTER_FILENAME, _T(".unzip.tmp"));
					strTempUnzipFilePath.ReleaseBuffer();
					if (zfile->Extract(strTempUnzipFilePath))
					{
						strFilePath = strTempUnzipFilePath;
						bExtractedArchive = true;
					}
					else
					{
						CString strError;
						strError.Format(_T("Failed to extract IP filter file from ZIP file \"%s\"."), strFilePath);
						AfxMessageBox(strError, MB_ICONERROR);
					}
				}
				else
				{
					CString strError;
					strError.Format(_T("Failed to find IP filter file \"guarding.p2p\" or \"ipfilter.dat\" in ZIP file \"%s\"."), strFilePath);
					AfxMessageBox(strError, MB_ICONERROR);
				}
				zip.Close();
			}
			else
			{
				CString strError;
				strError.Format(_T("Failed to open file \"%s\".\r\n\r\nInvalid file format?"), strFilePath);
				AfxMessageBox(strError, MB_ICONERROR);
			}
		}
		else if (_tcscmp(szExt, _T(".rar")) == 0)
		{
			CRARFile rar;
			if (rar.Open(strFilePath))
			{
				CString strFile;
				if (rar.GetNextFile(strFile)
					&& (strFile.CompareNoCase(_T("ipfilter.dat")) == 0 || strFile.CompareNoCase(_T("guarding.p2p")) == 0))
				{
					_tmakepathlimit(strTempUnzipFilePath.GetBuffer(MAX_PATH), NULL, thePrefs.GetMuleDirectory(EMULE_CONFIGDIR), DFLT_IPFILTER_FILENAME, _T(".unzip.tmp"));
					strTempUnzipFilePath.ReleaseBuffer();
					if (rar.Extract(strTempUnzipFilePath))
					{
						strFilePath = strTempUnzipFilePath;
						bExtractedArchive = true;
					}
					else
					{
						CString strError;
						strError.Format(_T("Failed to extract IP filter file from RAR file \"%s\"."), strFilePath);
						AfxMessageBox(strError, MB_ICONERROR);
					}
				}
				else
				{
					CString strError;
					strError.Format(_T("Failed to find IP filter file \"guarding.p2p\" or \"ipfilter.dat\" in RAR file \"%s\"."), strFilePath);
					AfxMessageBox(strError, MB_ICONERROR);
				}
				rar.Close();
			}
			else
			{
				CString strError;
				strError.Format(_T("Failed to open file \"%s\".\r\n\r\nInvalid file format?\r\n\r\nDownload latest version of UNRAR.DLL from http://www.rarlab.com and copy UNRAR.DLL into eMule installation folder."), strFilePath);
				AfxMessageBox(strError, MB_ICONERROR);
			}
		}
		else if (_tcscmp(szExt, _T(".gz")) == 0)
		{
			CGZIPFile gz;
			if (gz.Open(strFilePath))
			{
				_tmakepathlimit(strTempUnzipFilePath.GetBuffer(MAX_PATH), NULL, thePrefs.GetMuleDirectory(EMULE_CONFIGDIR), DFLT_IPFILTER_FILENAME, _T(".unzip.tmp"));
				strTempUnzipFilePath.ReleaseBuffer();

				// add filename and extension of uncompressed file to temporary file
				CString strUncompressedFileName = gz.GetUncompressedFileName();
				if (!strUncompressedFileName.IsEmpty())
				{
					strTempUnzipFilePath += _T('.');
					strTempUnzipFilePath += strUncompressedFileName;
				}

				if (gz.Extract(strTempUnzipFilePath))
				{
					strFilePath = strTempUnzipFilePath;
					bExtractedArchive = true;
				}
				gz.Close();
			}
			else
			{
				CString strError;
				strError.Format(_T("Failed to open file \"%s\".\r\n\r\nInvalid file format?"), strFilePath);
				AfxMessageBox(strError, MB_ICONERROR);
			}
		}

		if ((!bIsArchiveFile || bExtractedArchive) && theApp.ipfilter->AddFromFile(strFilePath, true))
		{
			if (thePrefs.GetFilterServerByIP())
				theApp.emuledlg->serverwnd->serverlistctrl.RemoveAllFilteredServers();
			InitIPFilters();
			m_ipfilter.Update(-1);
		}

		if (!strTempUnzipFilePath.IsEmpty())
			VERIFY( _tremove(strTempUnzipFilePath) == 0);
	}

	if (szCurDir[0] != _T('\0'))
		VERIFY( SetCurrentDirectory(szCurDir) );
}

void CIPFilterDlg::OnLvnDeleteItemIPFilter(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMLISTVIEW pNMLV = reinterpret_cast<LPNMLISTVIEW>(pNMHDR);

	ASSERT( m_uIPFilterItems > 0 );
	if (m_uIPFilterItems > 0)
	{
		ASSERT( (UINT)pNMLV->iItem < m_uIPFilterItems );
		if ((UINT)pNMLV->iItem < m_uIPFilterItems - 1)
			memmove(m_ppIPFilterItems + pNMLV->iItem, m_ppIPFilterItems + pNMLV->iItem + 1, (m_uIPFilterItems - (pNMLV->iItem + 1)) * sizeof(*m_ppIPFilterItems));
		m_uIPFilterItems--;
		const SIPFilter** ppNewIPFilterItems = (const SIPFilter**)realloc(m_ppIPFilterItems, sizeof(*m_ppIPFilterItems) * m_uIPFilterItems);
		if (ppNewIPFilterItems != NULL)
			m_ppIPFilterItems = ppNewIPFilterItems;
		else
			; // Keep the old list
	}

	*pResult = 0;
}

void CIPFilterDlg::OnBnClickedDelete()
{
	if (m_ipfilter.GetSelectedCount() == 0)
		return;
	if (AfxMessageBox(GetResString(IDS_DELETEIPFILTERS), MB_YESNOCANCEL) != IDYES)
		return;

	CWaitCursor curWait;

	if (m_ipfilter.GetSelectedCount() == m_uIPFilterItems)
	{
		theApp.ipfilter->RemoveAllIPFilters();
		theApp.ipfilter->SetModified();
		m_uIPFilterItems = 0;
		free(m_ppIPFilterItems);
		m_ppIPFilterItems = NULL;
		m_ipfilter.SetItemCount(m_uIPFilterItems);
		m_ulFilteredIPs = 0;
	}
	else
	{
	    CUIntArray aItems;
	    POSITION pos = m_ipfilter.GetFirstSelectedItemPosition();
	    while (pos)
	    {
		    int iItem = m_ipfilter.GetNextSelectedItem(pos);
			    const SIPFilter* pFilter = m_ppIPFilterItems[iItem];
		    if (pFilter)
		    {
			    ULONG ulIPRange = pFilter->end - pFilter->start + 1;
			    if (theApp.ipfilter->RemoveIPFilter(pFilter))
			    {
					theApp.ipfilter->SetModified();
				    aItems.Add(iItem);
				    m_ulFilteredIPs -= ulIPRange;
			    }
		    }
	    }
    
	    m_ipfilter.SetRedraw(FALSE);
	    for (int i = aItems.GetCount() - 1; i >= 0; i--)
		    m_ipfilter.DeleteItem(aItems[i]);
	    if (aItems.GetCount() > 0)
	    {
		    int iNextSelItem = aItems[0];
		    if (iNextSelItem >= m_ipfilter.GetItemCount())
			    iNextSelItem--;
		    if (iNextSelItem >= 0)
		    {
			    m_ipfilter.SetItemState(iNextSelItem, LVIS_SELECTED | LVIS_FOCUSED, LVIS_SELECTED | LVIS_FOCUSED);
			    m_ipfilter.SetSelectionMark(iNextSelItem);
		    }
	    }
	    m_ipfilter.SetRedraw();
	}
	ASSERT( m_uIPFilterItems == (UINT)m_ipfilter.GetItemCount() );
	SetDlgItemText(IDC_TOTAL_IPFILTER, GetFormatedUInt(m_ipfilter.GetItemCount()));
	SetDlgItemText(IDC_TOTAL_IPS, GetFormatedUInt(m_ulFilteredIPs));
}

void CIPFilterDlg::OnDeleteIPFilter()
{
	OnBnClickedDelete();
}

void CIPFilterDlg::OnLvnKeyDownIPFilter(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMLVKEYDOWN pLVKeyDow = reinterpret_cast<LPNMLVKEYDOWN>(pNMHDR);

	if (pLVKeyDow->wVKey == VK_DELETE)
		OnDeleteIPFilter();
	else if (pLVKeyDow->wVKey == 'C' && (GetKeyState(VK_CONTROL) & 0x8000))
		OnCopyIPFilter();
	*pResult = 0;
}

void CIPFilterDlg::OnDestroy()
{
	m_ipfilter.WriteColumnStats(ARRSIZE(_aColumns), _aColumns);
	CResizableDialog::OnDestroy();
}

void CIPFilterDlg::OnBnClickedSave()
{
	CWaitCursor curWait;
	try
	{
		theApp.ipfilter->SaveToDefaultFile();
	}
	catch(CString err)
	{
		AfxMessageBox(err, MB_ICONERROR);
	}
}

bool CIPFilterDlg::FindItem(const CListCtrlX& lv, int iItem, DWORD_PTR lParam)
{
	USES_CONVERSION;

	if (lv.GetFindColumn() != IPFILTER_COL_START)
		return CListCtrlX::FindItem(lv, iItem, lParam);

	const CIPFilterDlg* dlg = reinterpret_cast<CIPFilterDlg*>(lParam);
	ASSERT_VALID(dlg);
	u_long ip = htonl(inet_addr(T2A(lv.GetFindText())));
	const SIPFilter* filter = dlg->m_ppIPFilterItems[iItem];
	return (ip >= filter->start && ip <= filter->end);
}

void CIPFilterDlg::OnFind()
{
	m_ipfilter.OnFindStart();
}
