/*

Miranda NG: the free IM client for Microsoft* Windows*

Copyright (C) 2012-24 Miranda NG team (https://miranda-ng.org),
Copyright (c) 2000-12 Miranda IM project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.

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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#include "stdafx.h"
#include "netlib.h"

struct NetlibTempSettings
{
	uint32_t flags;
	char *szSettingsModule;
	NETLIBUSERSETTINGS settings;
};

static LIST <NetlibTempSettings> tempSettings(5);

static const UINT outgoingConnectionsControls[] =
{
	IDC_STATIC12,
	IDC_USEPROXY,
	IDC_STATIC21, IDC_PROXYTYPE,
	IDC_STATIC22, IDC_PROXYHOST, IDC_STATIC23, IDC_PROXYPORT, IDC_STOFTENPORT,
	IDC_PROXYAUTH,
	IDC_STATIC31, IDC_PROXYUSER, IDC_STATIC32, IDC_PROXYPASS,
	IDC_PROXYDNS,
	IDC_SPECIFYPORTSO,
	IDC_PORTSRANGEO,
	IDC_STATIC54,
	IDC_VALIDATESSL};
static const UINT useProxyControls[] = {
	IDC_STATIC21, IDC_PROXYTYPE,
	IDC_STATIC22, IDC_PROXYHOST, IDC_STATIC23, IDC_PROXYPORT, IDC_STOFTENPORT,
	IDC_PROXYAUTH,
	IDC_STATIC31, IDC_PROXYUSER, IDC_STATIC32, IDC_PROXYPASS,
	IDC_PROXYDNS};
static const UINT specifyOPortsControls[] = {
	IDC_PORTSRANGEO,
	IDC_STATIC54
};
static const UINT incomingConnectionsControls[] = {
	IDC_STATIC43,
	IDC_SPECIFYPORTS,
	IDC_PORTSRANGE,
	IDC_STATIC52,
	IDC_ENABLEUPNP};
static const UINT specifyPortsControls[] = {
	IDC_PORTSRANGE,
	IDC_STATIC52};

static const wchar_t* szProxyTypes[] = {LPGENW("<mixed>"), L"SOCKS4", L"SOCKS5", L"HTTP", L"HTTPS", LPGENW("System settings")};
static const uint16_t oftenProxyPorts[] = {1080, 1080, 1080, 8080, 8080, 8080};

#define M_REFRESHALL      (WM_USER+100)
#define M_REFRESHENABLING (WM_USER+101)

static void ShowMultipleControls(HWND hwndDlg, const UINT *controls, int cControls, int state)
{
	for (int i = 0; i < cControls; i++)
		ShowWindow(GetDlgItem(hwndDlg, controls[i]), state);
}

static void EnableMultipleControls(HWND hwndDlg, const UINT *controls, int cControls, int state)
{
	for (int i = 0; i < cControls; i++)
		EnableWindow(GetDlgItem(hwndDlg, controls[i]), state);
}

static void AddProxyTypeItem(HWND hwndDlg, int type, int selectType)
{
	int i = SendDlgItemMessage(hwndDlg, IDC_PROXYTYPE, CB_ADDSTRING, 0, (LPARAM)(type == 0 ? TranslateW(szProxyTypes[type]) : szProxyTypes[type]));
	SendDlgItemMessage(hwndDlg, IDC_PROXYTYPE, CB_SETITEMDATA, i, type);
	if (type == selectType)
		SendDlgItemMessage(hwndDlg, IDC_PROXYTYPE, CB_SETCURSEL, i, 0);
}

static void CopySettingsStruct(NETLIBUSERSETTINGS *dest, const NETLIBUSERSETTINGS *source)
{
	*dest = *source;
	if (dest->szIncomingPorts) dest->szIncomingPorts = mir_strdup(dest->szIncomingPorts);
	if (dest->szOutgoingPorts) dest->szOutgoingPorts = mir_strdup(dest->szOutgoingPorts);
	if (dest->szProxyAuthPassword) dest->szProxyAuthPassword = mir_strdup(dest->szProxyAuthPassword);
	if (dest->szProxyAuthUser) dest->szProxyAuthUser = mir_strdup(dest->szProxyAuthUser);
	if (dest->szProxyServer) dest->szProxyServer = mir_strdup(dest->szProxyServer);
}

static void CombineSettingsStrings(char **dest, char **source)
{
	if (*dest != nullptr && (*source == nullptr || mir_strcmpi(*dest, *source))) { mir_free(*dest); *dest = nullptr; }
}

static void CombineSettingsStructs(NETLIBUSERSETTINGS *dest, uint32_t *destFlags, NETLIBUSERSETTINGS *source, uint32_t sourceFlags)
{
	if (sourceFlags & NUF_OUTGOING) {
		if (*destFlags & NUF_OUTGOING) {
			if (dest->validateSSL != source->validateSSL) dest->validateSSL = 2;
			if (dest->useProxy != source->useProxy) dest->useProxy = 2;
			if (dest->proxyType != source->proxyType) dest->proxyType = 0;
			CombineSettingsStrings(&dest->szProxyServer, &source->szProxyServer);
			if (dest->wProxyPort != source->wProxyPort) dest->wProxyPort = 0;
			if (dest->useProxyAuth != source->useProxyAuth) dest->useProxyAuth = 2;
			CombineSettingsStrings(&dest->szProxyAuthUser, &source->szProxyAuthUser);
			CombineSettingsStrings(&dest->szProxyAuthPassword, &source->szProxyAuthPassword);
			if (dest->dnsThroughProxy != source->dnsThroughProxy) dest->dnsThroughProxy = 2;
			if (dest->specifyOutgoingPorts != source->specifyOutgoingPorts) dest->specifyOutgoingPorts = 2;
			CombineSettingsStrings(&dest->szOutgoingPorts, &source->szOutgoingPorts);
		}
		else {
			dest->validateSSL = source->validateSSL;
			dest->useProxy = source->useProxy;
			dest->proxyType = source->proxyType;
			dest->szProxyServer = source->szProxyServer;
			if (dest->szProxyServer) dest->szProxyServer = mir_strdup(dest->szProxyServer);
			dest->wProxyPort = source->wProxyPort;
			dest->useProxyAuth = source->useProxyAuth;
			dest->szProxyAuthUser = source->szProxyAuthUser;
			if (dest->szProxyAuthUser) dest->szProxyAuthUser = mir_strdup(dest->szProxyAuthUser);
			dest->szProxyAuthPassword = source->szProxyAuthPassword;
			if (dest->szProxyAuthPassword) dest->szProxyAuthPassword = mir_strdup(dest->szProxyAuthPassword);
			dest->dnsThroughProxy = source->dnsThroughProxy;
			dest->specifyOutgoingPorts = source->specifyOutgoingPorts;
			dest->szOutgoingPorts = source->szOutgoingPorts;
			if (dest->szOutgoingPorts) dest->szOutgoingPorts = mir_strdup(dest->szOutgoingPorts);
		}
	}
	if (sourceFlags & NUF_INCOMING) {
		if (*destFlags & NUF_INCOMING) {
			if (dest->enableUPnP != source->enableUPnP) dest->enableUPnP = 2;
			if (dest->specifyIncomingPorts != source->specifyIncomingPorts) dest->specifyIncomingPorts = 2;
			CombineSettingsStrings(&dest->szIncomingPorts, &source->szIncomingPorts);
		}
		else {
			dest->enableUPnP = source->enableUPnP;
			dest->specifyIncomingPorts = source->specifyIncomingPorts;
			dest->szIncomingPorts = source->szIncomingPorts;
			if (dest->szIncomingPorts) dest->szIncomingPorts = mir_strdup(dest->szIncomingPorts);
		}
	}
	if ((*destFlags & NUF_NOHTTPSOPTION) != (sourceFlags & NUF_NOHTTPSOPTION))
		*destFlags = (*destFlags | sourceFlags) & ~NUF_NOHTTPSOPTION;
	else *destFlags |= sourceFlags;
}

static void ChangeSettingIntByCheckbox(HWND hwndDlg, UINT ctrlId, int iUser, int memberOffset)
{
	int newValue = IsDlgButtonChecked(hwndDlg, ctrlId) != BST_CHECKED;
	CheckDlgButton(hwndDlg, ctrlId, newValue ? BST_CHECKED : BST_UNCHECKED);
	if (iUser == -1) {
		for (auto &p : tempSettings)
			if (!(p->flags & NUF_NOOPTIONS))
				*(int*)(((uint8_t*)&p->settings) + memberOffset) = newValue;
	}
	else *(int*)(((uint8_t*)&tempSettings[iUser]->settings) + memberOffset) = newValue;
	SendMessage(hwndDlg, M_REFRESHENABLING, 0, 0);
}

static void ChangeSettingStringByEdit(HWND hwndDlg, UINT ctrlId, int iUser, int memberOffset)
{
	int newValueLen = GetWindowTextLength(GetDlgItem(hwndDlg, ctrlId));
	char *szNewValue = (char*)mir_alloc(newValueLen+1);
	GetDlgItemTextA(hwndDlg, ctrlId, szNewValue, newValueLen+1);
	if (iUser == -1) {
		for (auto &p : tempSettings) {
			if (!(p->flags & NUF_NOOPTIONS)) {
				char **ppszNew = (char**)(((uint8_t*)&p->settings) + memberOffset);
				mir_free(*ppszNew);
				*ppszNew = mir_strdup(szNewValue);
			}
		}
		mir_free(szNewValue);
	}
	else {
		char **ppszNew = (char**)(((uint8_t*)&tempSettings[iUser]->settings) + memberOffset);
		mir_free(*ppszNew);
		*ppszNew = szNewValue;
	}
}

static void WriteSettingsStructToDb(const char *szSettingsModule, NETLIBUSERSETTINGS *settings, uint32_t flags)
{
	if (flags & NUF_OUTGOING) {
		db_set_b(0, szSettingsModule, "NLValidateSSL", (uint8_t)settings->validateSSL);
		db_set_b(0, szSettingsModule, "NLUseProxy", (uint8_t)settings->useProxy);
		db_set_b(0, szSettingsModule, "NLProxyType", (uint8_t)settings->proxyType);
		db_set_s(0, szSettingsModule, "NLProxyServer", settings->szProxyServer ? settings->szProxyServer : "");
		db_set_w(0, szSettingsModule, "NLProxyPort", (uint16_t)settings->wProxyPort);
		db_set_b(0, szSettingsModule, "NLUseProxyAuth", (uint8_t)settings->useProxyAuth);
		db_set_s(0, szSettingsModule, "NLProxyAuthUser", settings->szProxyAuthUser ? settings->szProxyAuthUser : "");
		db_set_s(0, szSettingsModule, "NLProxyAuthPassword", settings->szProxyAuthPassword ? settings->szProxyAuthPassword : "");
		db_set_b(0, szSettingsModule, "NLDnsThroughProxy", (uint8_t)settings->dnsThroughProxy);
		db_set_b(0, szSettingsModule, "NLSpecifyOutgoingPorts", (uint8_t)settings->specifyOutgoingPorts);
		db_set_s(0, szSettingsModule, "NLOutgoingPorts", settings->szOutgoingPorts ? settings->szOutgoingPorts : "");
	}
	if (flags & NUF_INCOMING) {
		db_set_b(0, szSettingsModule, "NLEnableUPnP", (uint8_t)settings->enableUPnP);
		db_set_b(0, szSettingsModule, "NLSpecifyIncomingPorts", (uint8_t)settings->specifyIncomingPorts);
		db_set_s(0, szSettingsModule, "NLIncomingPorts", settings->szIncomingPorts ? settings->szIncomingPorts : "");
	}
}

void NetlibSaveUserSettingsStruct(const char *szSettingsModule, const NETLIBUSERSETTINGS *settings)
{
	mir_cslock lck(csNetlibUser);

	NetlibUser tUser;
	tUser.user.szSettingsModule = (char*)szSettingsModule;
	NetlibUser *thisUser = netlibUser.find(&tUser);
	if (thisUser == nullptr)
		return;

	NetlibFreeUserSettingsStruct(&thisUser->settings);
	CopySettingsStruct(&thisUser->settings, settings);
	WriteSettingsStructToDb(thisUser->user.szSettingsModule, &thisUser->settings, thisUser->user.flags);

	NETLIBUSERSETTINGS combinedSettings = { 0 };
	combinedSettings.cbSize = sizeof(combinedSettings);

	uint32_t flags = 0;
	for (auto &p : netlibUser) {
		if (p->user.flags & NUF_NOOPTIONS)
			continue;
		CombineSettingsStructs(&combinedSettings, &flags, &p->settings, p->user.flags);
	}
	if (combinedSettings.validateSSL == 2) combinedSettings.validateSSL = 0;
	if (combinedSettings.useProxy == 2) combinedSettings.useProxy = 0;
	if (combinedSettings.proxyType == 0) combinedSettings.proxyType = PROXYTYPE_SOCKS5;
	if (combinedSettings.useProxyAuth == 2) combinedSettings.useProxyAuth = 0;
	if (combinedSettings.dnsThroughProxy == 2) combinedSettings.dnsThroughProxy = 1;
	if (combinedSettings.enableUPnP == 2) combinedSettings.enableUPnP = 1;
	if (combinedSettings.specifyIncomingPorts == 2) combinedSettings.specifyIncomingPorts = 0;
	WriteSettingsStructToDb("Netlib", &combinedSettings, flags);
	NetlibFreeUserSettingsStruct(&combinedSettings);
}

static INT_PTR CALLBACK DlgProcNetlibOpts(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
{
	int iUser;

	switch (msg) {
	case WM_INITDIALOG:
		TranslateDialogDefault(hwndDlg);
		{
			int iItem = SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_ADDSTRING, 0, (LPARAM)TranslateT("<All connections>"));
			SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_SETITEMDATA, iItem, (LPARAM)-1);
			SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_SETCURSEL, iItem, 0);

			mir_cslock lck(csNetlibUser);
			for (auto &it : netlibUser) {
				NetlibTempSettings *thisSettings = (NetlibTempSettings*)mir_calloc(sizeof(NetlibTempSettings));
				thisSettings->flags = it->user.flags;
				thisSettings->szSettingsModule = mir_strdup(it->user.szSettingsModule);
				CopySettingsStruct(&thisSettings->settings, &it->settings);
				tempSettings.insert(thisSettings);

				if (it->user.flags & NUF_NOOPTIONS)
					continue;
				iItem = SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_ADDSTRING, 0, (LPARAM)it->user.szDescriptiveName.w);
				SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_SETITEMDATA, iItem, netlibUser.indexOf(&it));
			}
		}

		SendMessage(hwndDlg, M_REFRESHALL, 0, 0);
		return TRUE;

	case M_REFRESHALL:
		iUser = SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_GETITEMDATA, SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_GETCURSEL, 0, 0), 0);
		{
			NETLIBUSERSETTINGS settings = { 0 };
			uint32_t flags = 0;

			if (iUser == -1) {
				settings.cbSize = sizeof(settings);
				for (auto &p : tempSettings)
					if (!(p->flags & NUF_NOOPTIONS))
						CombineSettingsStructs(&settings, &flags, &p->settings, p->flags);
			}
			else {
				NetlibFreeUserSettingsStruct(&settings);
				CopySettingsStruct(&settings, &tempSettings[iUser]->settings);
				flags = tempSettings[iUser]->flags;
			}
			ShowMultipleControls(hwndDlg, outgoingConnectionsControls, _countof(outgoingConnectionsControls), flags & NUF_OUTGOING ? SW_SHOW : SW_HIDE);
			CheckDlgButton(hwndDlg, IDC_USEPROXY, settings.useProxy);
			SendDlgItemMessage(hwndDlg, IDC_PROXYTYPE, CB_RESETCONTENT, 0, 0);
			if (settings.proxyType == 0) AddProxyTypeItem(hwndDlg, 0, settings.proxyType);
			AddProxyTypeItem(hwndDlg, PROXYTYPE_SOCKS4, settings.proxyType);
			AddProxyTypeItem(hwndDlg, PROXYTYPE_SOCKS5, settings.proxyType);
			if (flags & NUF_HTTPCONNS) AddProxyTypeItem(hwndDlg, PROXYTYPE_HTTP, settings.proxyType);
			if (!(flags & NUF_NOHTTPSOPTION)) AddProxyTypeItem(hwndDlg, PROXYTYPE_HTTPS, settings.proxyType);
			if ((flags & NUF_HTTPCONNS) || !(flags & NUF_NOHTTPSOPTION))
				AddProxyTypeItem(hwndDlg, PROXYTYPE_IE, settings.proxyType);
			SetDlgItemTextA(hwndDlg, IDC_PROXYHOST, settings.szProxyServer ? settings.szProxyServer : "");
			if (settings.wProxyPort) SetDlgItemInt(hwndDlg, IDC_PROXYPORT, settings.wProxyPort, FALSE);
			else SetDlgItemTextA(hwndDlg, IDC_PROXYPORT, "");
			CheckDlgButton(hwndDlg, IDC_PROXYAUTH, settings.useProxyAuth);
			SetDlgItemTextA(hwndDlg, IDC_PROXYUSER, settings.szProxyAuthUser ? settings.szProxyAuthUser : "");
			SetDlgItemTextA(hwndDlg, IDC_PROXYPASS, settings.szProxyAuthPassword ? settings.szProxyAuthPassword : "");
			CheckDlgButton(hwndDlg, IDC_PROXYDNS, settings.dnsThroughProxy);
			CheckDlgButton(hwndDlg, IDC_VALIDATESSL, settings.validateSSL);

			ShowMultipleControls(hwndDlg, incomingConnectionsControls, _countof(incomingConnectionsControls), flags & NUF_INCOMING ? SW_SHOW : SW_HIDE);
			CheckDlgButton(hwndDlg, IDC_SPECIFYPORTS, settings.specifyIncomingPorts);
			SetDlgItemTextA(hwndDlg, IDC_PORTSRANGE, settings.szIncomingPorts ? settings.szIncomingPorts : "");

			CheckDlgButton(hwndDlg, IDC_SPECIFYPORTSO, settings.specifyOutgoingPorts);
			SetDlgItemTextA(hwndDlg, IDC_PORTSRANGEO, settings.szOutgoingPorts ? settings.szOutgoingPorts : "");

			CheckDlgButton(hwndDlg, IDC_ENABLEUPNP, settings.enableUPnP);

			NetlibFreeUserSettingsStruct(&settings);
			SendMessage(hwndDlg, M_REFRESHENABLING, 0, 0);
		}
		break;

	case M_REFRESHENABLING:
		wchar_t str[80];
		{
			int selectedProxyType = SendDlgItemMessage(hwndDlg, IDC_PROXYTYPE, CB_GETITEMDATA, SendDlgItemMessage(hwndDlg, IDC_PROXYTYPE, CB_GETCURSEL, 0, 0), 0);
			mir_snwprintf(str, TranslateT("(often %d)"), oftenProxyPorts[selectedProxyType]);
			SetDlgItemText(hwndDlg, IDC_STOFTENPORT, str);
			if (IsDlgButtonChecked(hwndDlg, IDC_USEPROXY) != BST_UNCHECKED) {
				int enableAuth = 0, enableUser = 0, enablePass = 0, enableServer = 1;
				EnableMultipleControls(hwndDlg, useProxyControls, _countof(useProxyControls), TRUE);
				if (selectedProxyType == 0) {
					for (auto &p : tempSettings) {
						if (!p->settings.useProxy || p->flags & NUF_NOOPTIONS || !(p->flags & NUF_OUTGOING))
							continue;

						if (p->settings.proxyType == PROXYTYPE_SOCKS4) enableUser = 1;
						else {
							enableAuth = 1;
							if (p->settings.useProxyAuth)
								enableUser = enablePass = 1;
						}
					}
				}
				else {
					if (selectedProxyType == PROXYTYPE_SOCKS4) enableUser = 1;
					else {
						if (selectedProxyType == PROXYTYPE_IE) enableServer = 0;
						enableAuth = 1;
						if (IsDlgButtonChecked(hwndDlg, IDC_PROXYAUTH) != BST_UNCHECKED)
							enableUser = enablePass = 1;
					}
				}
				EnableWindow(GetDlgItem(hwndDlg, IDC_PROXYAUTH), enableAuth);
				EnableWindow(GetDlgItem(hwndDlg, IDC_STATIC31), enableUser);
				EnableWindow(GetDlgItem(hwndDlg, IDC_PROXYUSER), enableUser);
				EnableWindow(GetDlgItem(hwndDlg, IDC_STATIC32), enablePass);
				EnableWindow(GetDlgItem(hwndDlg, IDC_PROXYPASS), enablePass);
				EnableWindow(GetDlgItem(hwndDlg, IDC_PROXYHOST), enableServer);
				EnableWindow(GetDlgItem(hwndDlg, IDC_PROXYPORT), enableServer);
			}
			else EnableMultipleControls(hwndDlg, useProxyControls, _countof(useProxyControls), FALSE);
			EnableMultipleControls(hwndDlg, specifyPortsControls, _countof(specifyPortsControls), IsDlgButtonChecked(hwndDlg, IDC_SPECIFYPORTS) != BST_UNCHECKED);
			EnableMultipleControls(hwndDlg, specifyOPortsControls, _countof(specifyOPortsControls), IsDlgButtonChecked(hwndDlg, IDC_SPECIFYPORTSO) != BST_UNCHECKED);
		}
		break;

	case WM_COMMAND:
		iUser = SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_GETITEMDATA, SendDlgItemMessage(hwndDlg, IDC_NETLIBUSERS, CB_GETCURSEL, 0, 0), 0);
		switch (LOWORD(wParam)) {
		case IDC_NETLIBUSERS:
			if (HIWORD(wParam) == CBN_SELCHANGE) SendMessage(hwndDlg, M_REFRESHALL, 0, 0);
			return 0;

		case IDC_LOGOPTIONS:
			NetlibLogShowOptions();
			return 0;

		case IDC_PROXYTYPE:
			if (HIWORD(wParam) == CBN_SELCHANGE) {
				int newValue = SendDlgItemMessage(hwndDlg, IDC_PROXYTYPE, CB_GETITEMDATA, SendDlgItemMessage(hwndDlg, IDC_PROXYTYPE, CB_GETCURSEL, 0, 0), 0);
				if (iUser == -1) {
					if (newValue == 0)
						return 0;
					
					for (auto &p : tempSettings) {
						if (p->flags & NUF_NOOPTIONS)
							continue;
						if (newValue == PROXYTYPE_HTTP && !(p->flags & NUF_HTTPCONNS))
							p->settings.proxyType = PROXYTYPE_HTTPS;
						else if (newValue == PROXYTYPE_HTTPS && p->flags & NUF_NOHTTPSOPTION)
							p->settings.proxyType = PROXYTYPE_HTTP;
						else p->settings.proxyType = newValue;
					}
					SendMessage(hwndDlg, M_REFRESHALL, 0, 0);
				}
				else {
					tempSettings[iUser]->settings.proxyType = newValue;
					SendMessage(hwndDlg, M_REFRESHENABLING, 0, 0);
				}
			}
			break;
		case IDC_USEPROXY:
			ChangeSettingIntByCheckbox(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, useProxy));
			break;
		case IDC_PROXYAUTH:
			ChangeSettingIntByCheckbox(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, useProxyAuth));
			break;
		case IDC_PROXYDNS:
			ChangeSettingIntByCheckbox(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, dnsThroughProxy));
			break;
		case IDC_SPECIFYPORTS:
			ChangeSettingIntByCheckbox(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, specifyIncomingPorts));
			break;
		case IDC_SPECIFYPORTSO:
			ChangeSettingIntByCheckbox(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, specifyOutgoingPorts));
			break;
		case IDC_ENABLEUPNP:
			ChangeSettingIntByCheckbox(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, enableUPnP));
			break;
		case IDC_VALIDATESSL:
			ChangeSettingIntByCheckbox(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, validateSSL));
			break;
		case IDC_PROXYHOST:
			if (HIWORD(wParam) != EN_CHANGE || (HWND)lParam != GetFocus()) return 0;
			ChangeSettingStringByEdit(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, szProxyServer));
			break;
		case IDC_PROXYPORT:
			if (HIWORD(wParam) != EN_CHANGE || (HWND)lParam != GetFocus()) return 0;
			{
				int newValue = GetDlgItemInt(hwndDlg, LOWORD(wParam), nullptr, FALSE);
				if (iUser == -1) {
					for (auto &p : tempSettings)
						if (!(p->flags & NUF_NOOPTIONS))
							p->settings.wProxyPort = newValue;
				}
				else tempSettings[iUser]->settings.wProxyPort = newValue;
			}
			break;
		case IDC_PROXYUSER:
			if (HIWORD(wParam) != EN_CHANGE || (HWND)lParam != GetFocus()) return 0;
			ChangeSettingStringByEdit(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, szProxyAuthUser));
			break;
		case IDC_PROXYPASS:
			if (HIWORD(wParam) != EN_CHANGE || (HWND)lParam != GetFocus()) return 0;
			ChangeSettingStringByEdit(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, szProxyAuthPassword));
			break;
		case IDC_PORTSRANGE:
			if (HIWORD(wParam) != EN_CHANGE || (HWND)lParam != GetFocus()) return 0;
			ChangeSettingStringByEdit(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, szIncomingPorts));
			break;
		case IDC_PORTSRANGEO:
			if (HIWORD(wParam) != EN_CHANGE || (HWND)lParam != GetFocus()) return 0;
			ChangeSettingStringByEdit(hwndDlg, LOWORD(wParam), iUser, offsetof(NETLIBUSERSETTINGS, szOutgoingPorts));
			break;
		}
		ShowWindow(GetDlgItem(hwndDlg, IDC_RECONNECTREQD), SW_SHOW);
		SendMessage(GetParent(hwndDlg), PSM_CHANGED, 0, 0);
		break;

	case WM_NOTIFY:
		switch (((LPNMHDR)lParam)->idFrom) {
		case 0:
			switch (((LPNMHDR)lParam)->code) {
			case PSN_APPLY:
				for (auto &p : tempSettings)
					NetlibSaveUserSettingsStruct(p->szSettingsModule, &p->settings);
				return TRUE;
			}
			break;
		}
		break;

	case WM_DESTROY:
		for (auto &p : tempSettings) {
			mir_free(p->szSettingsModule);
			NetlibFreeUserSettingsStruct(&p->settings);
			mir_free(p);
		}
		tempSettings.destroy();
		break;
	}
	return FALSE;
}

int NetlibOptInitialise(WPARAM wParam, LPARAM)
{
	int optionsCount = 0;
	{
		mir_cslock lck(csNetlibUser);
		for (auto &p : netlibUser)
			if (!(p->user.flags & NUF_NOOPTIONS))
				++optionsCount;
	}

	if (optionsCount == 0)
		return 0;

	OPTIONSDIALOGPAGE odp = {};
	odp.position = 900000000;
	odp.pszTemplate = MAKEINTRESOURCEA(IDD_OPT_NETLIB);
	odp.szTitle.a = LPGEN("Network");
	odp.pfnDlgProc = DlgProcNetlibOpts;
	odp.flags = ODPF_BOLDGROUPS;
	g_plugin.addOptions(wParam, &odp);
	return 0;
}