I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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/*
* Copyright (c) 2013-2020, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
* See full license text in LICENSE file at top of project tree
*/
#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <shellapi.h>
#include "ClientContext.h"
#include "Config.h"
#include "NetDb.hpp"
#include "RouterContext.h"
#include "Transports.h"
#include "Tunnel.h"
#include "version.h"
#include "resource.h"
#include "Daemon.h"
#include "Win32App.h"
#include "Win32NetState.h"
#define ID_ABOUT 2000
#define ID_EXIT 2001
#define ID_CONSOLE 2002
#define ID_APP 2003
#define ID_GRACEFUL_SHUTDOWN 2004
#define ID_STOP_GRACEFUL_SHUTDOWN 2005
#define ID_RELOAD 2006
#define ID_ACCEPT_TRANSIT 2007
#define ID_DECLINE_TRANSIT 2008
#define ID_TRAY_ICON 2050
#define WM_TRAYICON (WM_USER + 1)
#define IDT_GRACEFUL_SHUTDOWN_TIMER 2100
#define FRAME_UPDATE_TIMER 2101
#define IDT_GRACEFUL_TUNNELCHECK_TIMER 2102
namespace i2p
{
namespace win32
{
static DWORD GracefulShutdownEndtime = 0;
typedef DWORD (* IPN)();
IPN GetTickCountLocal = (IPN)GetProcAddress (GetModuleHandle ("KERNEL32.dll"), "GetTickCount");
static void ShowPopupMenu (HWND hWnd, POINT *curpos, int wDefaultItem)
{
HMENU hPopup = CreatePopupMenu();
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_CONSOLE, "Open &console");
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_APP, "Show app");
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_ABOUT, "&About...");
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_SEPARATOR, 0, NULL);
if(!i2p::context.AcceptsTunnels())
InsertMenu (hPopup, -1,
i2p::util::DaemonWin32::Instance ().isGraceful ? MF_BYPOSITION | MF_STRING | MF_GRAYED : MF_BYPOSITION | MF_STRING,
ID_ACCEPT_TRANSIT, "Accept &transit");
else
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_DECLINE_TRANSIT, "Decline &transit");
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_RELOAD, "&Reload tunnels config");
if (!i2p::util::DaemonWin32::Instance ().isGraceful)
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_GRACEFUL_SHUTDOWN, "&Graceful shutdown");
else
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_STOP_GRACEFUL_SHUTDOWN, "Stop &graceful shutdown");
InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_EXIT, "E&xit");
SetMenuDefaultItem (hPopup, ID_CONSOLE, FALSE);
SendMessage (hWnd, WM_INITMENUPOPUP, (WPARAM)hPopup, 0);
POINT p;
if (!curpos)
{
GetCursorPos (&p);
curpos = &p;
}
WORD cmd = TrackPopupMenu (hPopup, TPM_LEFTALIGN | TPM_RIGHTBUTTON | TPM_RETURNCMD | TPM_NONOTIFY, curpos->x, curpos->y, 0, hWnd, NULL);
SendMessage (hWnd, WM_COMMAND, cmd, 0);
DestroyMenu(hPopup);
}
static void AddTrayIcon (HWND hWnd)
{
NOTIFYICONDATA nid;
memset(&nid, 0, sizeof(nid));
nid.cbSize = sizeof(nid);
nid.hWnd = hWnd;
nid.uID = ID_TRAY_ICON;
nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP | NIF_INFO;
nid.uCallbackMessage = WM_TRAYICON;
nid.hIcon = LoadIcon (GetModuleHandle(NULL), MAKEINTRESOURCE (MAINICON));
strcpy (nid.szTip, "i2pd");
strcpy (nid.szInfo, "i2pd is starting");
Shell_NotifyIcon(NIM_ADD, &nid );
}
static void RemoveTrayIcon (HWND hWnd)
{
NOTIFYICONDATA nid;
nid.hWnd = hWnd;
nid.uID = ID_TRAY_ICON;
Shell_NotifyIcon (NIM_DELETE, &nid);
}
static void ShowUptime (std::stringstream& s, int seconds)
{
int num;
if ((num = seconds / 86400) > 0) {
s << num << " days, ";
seconds -= num * 86400;
}
if ((num = seconds / 3600) > 0) {
s << num << " hours, ";
seconds -= num * 3600;
}
if ((num = seconds / 60) > 0) {
s << num << " min, ";
seconds -= num * 60;
}
s << seconds << " seconds\n";
}
template <typename size> static void ShowTransfered (std::stringstream& s, size transfer)
{
auto bytes = transfer & 0x03ff;
transfer >>= 10;
auto kbytes = transfer & 0x03ff;
transfer >>= 10;
auto mbytes = transfer & 0x03ff;
transfer >>= 10;
auto gbytes = transfer & 0x03ff;
if (gbytes)
s << gbytes << " GB, ";
if (mbytes)
s << mbytes << " MB, ";
if (kbytes)
s << kbytes << " KB, ";
s << bytes << " Bytes\n";
}
static void PrintMainWindowText (std::stringstream& s)
{
s << "\n";
s << "Status: ";
switch (i2p::context.GetStatus())
{
case eRouterStatusOK: s << "OK"; break;
case eRouterStatusTesting: s << "Testing"; break;
case eRouterStatusFirewalled: s << "Firewalled"; break;
case eRouterStatusError:
{
switch (i2p::context.GetError())
{
case eRouterErrorClockSkew: s << "Clock skew"; break;
default: s << "Error";
}
break;
}
default: s << "Unknown";
}
s << "; ";
s << "Success Rate: " << i2p::tunnel::tunnels.GetTunnelCreationSuccessRate() << "%\n";
s << "Uptime: "; ShowUptime(s, i2p::context.GetUptime ());
if (GracefulShutdownEndtime != 0)
{
DWORD GracefulTimeLeft = (GracefulShutdownEndtime - GetTickCountLocal()) / 1000;
s << "Graceful shutdown, time left: "; ShowUptime(s, GracefulTimeLeft);
}
else
s << "\n";
s << "Inbound: " << i2p::transport::transports.GetInBandwidth() / 1024 << " KiB/s; ";
s << "Outbound: " << i2p::transport::transports.GetOutBandwidth() / 1024 << " KiB/s\n";
s << "Received: "; ShowTransfered (s, i2p::transport::transports.GetTotalReceivedBytes());
s << "Sent: "; ShowTransfered (s, i2p::transport::transports.GetTotalSentBytes());
s << "\n";
s << "Routers: " << i2p::data::netdb.GetNumRouters () << "; ";
s << "Floodfills: " << i2p::data::netdb.GetNumFloodfills () << "; ";
s << "LeaseSets: " << i2p::data::netdb.GetNumLeaseSets () << "\n";
s << "Tunnels: ";
s << "In: " << i2p::tunnel::tunnels.CountInboundTunnels() << "; ";
s << "Out: " << i2p::tunnel::tunnels.CountOutboundTunnels() << "; ";
s << "Transit: " << i2p::tunnel::tunnels.CountTransitTunnels() << "\n";
s << "\n";
}
static LRESULT CALLBACK WndProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
static UINT s_uTaskbarRestart;
switch (uMsg)
{
case WM_CREATE:
{
s_uTaskbarRestart = RegisterWindowMessage(TEXT("TaskbarCreated"));
AddTrayIcon (hWnd);
break;
}
case WM_CLOSE:
{
RemoveTrayIcon (hWnd);
KillTimer (hWnd, FRAME_UPDATE_TIMER);
KillTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER);
KillTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER);
PostQuitMessage (0);
break;
}
case WM_COMMAND:
{
switch (LOWORD(wParam))
{
case ID_ABOUT:
{
std::stringstream text;
text << "Version: " << I2PD_VERSION << " " << CODENAME;
MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK );
return 0;
}
case ID_EXIT:
{
PostMessage (hWnd, WM_CLOSE, 0, 0);
return 0;
}
case ID_ACCEPT_TRANSIT:
{
i2p::context.SetAcceptsTunnels (true);
std::stringstream text;
text << "I2Pd now accept transit tunnels";
MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK );
return 0;
}
case ID_DECLINE_TRANSIT:
{
i2p::context.SetAcceptsTunnels (false);
std::stringstream text;
text << "I2Pd now decline new transit tunnels";
MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK );
return 0;
}
case ID_GRACEFUL_SHUTDOWN:
{
i2p::context.SetAcceptsTunnels (false);
SetTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER, 10*60*1000, nullptr); // 10 minutes
SetTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER, 1000, nullptr); // check tunnels every second
GracefulShutdownEndtime = GetTickCountLocal() + 10*60*1000;
i2p::util::DaemonWin32::Instance ().isGraceful = true;
return 0;
}
case ID_STOP_GRACEFUL_SHUTDOWN:
{
i2p::context.SetAcceptsTunnels (true);
KillTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER);
KillTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER);
GracefulShutdownEndtime = 0;
i2p::util::DaemonWin32::Instance ().isGraceful = false;
return 0;
}
case ID_RELOAD:
{
i2p::client::context.ReloadConfig();
std::stringstream text;
text << "I2Pd reloading configs...";
MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK );
return 0;
}
case ID_CONSOLE:
{
char buf[30];
std::string httpAddr; i2p::config::GetOption("http.address", httpAddr);
uint16_t httpPort; i2p::config::GetOption("http.port", httpPort);
snprintf(buf, 30, "http://%s:%d", httpAddr.c_str(), httpPort);
ShellExecute(NULL, "open", buf, NULL, NULL, SW_SHOWNORMAL);
return 0;
}
case ID_APP:
{
ShowWindow(hWnd, SW_SHOW);
SetTimer(hWnd, FRAME_UPDATE_TIMER, 3000, NULL);
return 0;
}
}
break;
}
case WM_SYSCOMMAND:
{
switch (wParam)
{
case SC_MINIMIZE:
{
ShowWindow(hWnd, SW_HIDE);
KillTimer (hWnd, FRAME_UPDATE_TIMER);
return 0;
}
case SC_CLOSE:
{
std::string close; i2p::config::GetOption("close", close);
if (0 == close.compare("ask"))
switch(::MessageBox(hWnd, "Would you like to minimize instead of exiting?"
" You can add 'close' configuration option. Valid values are: ask, minimize, exit.",
"Minimize instead of exiting?", MB_ICONQUESTION | MB_YESNOCANCEL | MB_DEFBUTTON1))
{
case IDYES: close = "minimize"; break;
case IDNO: close = "exit"; break;
default: return 0;
}
if (0 == close.compare("minimize"))
{
ShowWindow(hWnd, SW_HIDE);
KillTimer (hWnd, FRAME_UPDATE_TIMER);
return 0;
}
if (0 != close.compare("exit"))
{
::MessageBox(hWnd, close.c_str(), "Unknown close action in config", MB_OK | MB_ICONWARNING);
return 0;
}
}
}
}
case WM_TRAYICON:
{
switch (lParam)
{
case WM_LBUTTONUP:
case WM_RBUTTONUP:
{
SetForegroundWindow (hWnd);
ShowPopupMenu(hWnd, NULL, -1);
PostMessage (hWnd, WM_APP + 1, 0, 0);
break;
}
}
break;
}
case WM_TIMER:
{
switch(wParam)
{
case IDT_GRACEFUL_SHUTDOWN_TIMER:
{
GracefulShutdownEndtime = 0;
PostMessage (hWnd, WM_CLOSE, 0, 0); // exit
return 0;
}
case IDT_GRACEFUL_TUNNELCHECK_TIMER:
{
if (i2p::tunnel::tunnels.CountTransitTunnels() == 0)
PostMessage (hWnd, WM_CLOSE, 0, 0);
else
SetTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER, 1000, nullptr);
return 0;
}
case FRAME_UPDATE_TIMER:
{
InvalidateRect(hWnd, NULL, TRUE);
return 0;
}
}
break;
}
case WM_PAINT:
{
HDC hDC;
PAINTSTRUCT ps;
RECT rp;
HFONT hFont;
std::stringstream s; PrintMainWindowText (s);
hDC = BeginPaint (hWnd, &ps);
GetClientRect(hWnd, &rp);
SetTextColor(hDC, 0x00D43B69);
hFont = CreateFont(18,0,0,0,0,0,0,0,DEFAULT_CHARSET,0,0,0,0,TEXT("Times New Roman"));
SelectObject(hDC,hFont);
DrawText(hDC, TEXT(s.str().c_str()), s.str().length(), &rp, DT_CENTER|DT_VCENTER);
DeleteObject(hFont);
EndPaint(hWnd, &ps);
break;
}
default:
{
if (uMsg == s_uTaskbarRestart)
AddTrayIcon (hWnd);
break;
}
}
return DefWindowProc( hWnd, uMsg, wParam, lParam);
}
bool StartWin32App ()
{
if (FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd")))
{
MessageBox(NULL, TEXT("I2Pd is running already"), TEXT("Warning"), MB_OK);
return false;
}
// register main window
auto hInst = GetModuleHandle(NULL);
WNDCLASSEX wclx;
memset (&wclx, 0, sizeof(wclx));
wclx.cbSize = sizeof(wclx);
wclx.style = 0;
wclx.lpfnWndProc = WndProc;
//wclx.cbClsExtra = 0;
//wclx.cbWndExtra = 0;
wclx.hInstance = hInst;
wclx.hIcon = LoadIcon (hInst, MAKEINTRESOURCE(MAINICON));
wclx.hCursor = LoadCursor (NULL, IDC_ARROW);
//wclx.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
wclx.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wclx.lpszMenuName = NULL;
wclx.lpszClassName = I2PD_WIN32_CLASSNAME;
RegisterClassEx (&wclx);
// create new window
if (!CreateWindow(I2PD_WIN32_CLASSNAME, TEXT("i2pd"), WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX, 100, 100, 350, 210, NULL, NULL, hInst, NULL))
{
MessageBox(NULL, "Failed to create main window", TEXT("Warning!"), MB_ICONERROR | MB_OK | MB_TOPMOST);
return false;
}
SubscribeToEvents();
return true;
}
int RunWin32App ()
{
MSG msg;
while (GetMessage (&msg, NULL, 0, 0 ))
{
TranslateMessage (&msg);
DispatchMessage (&msg);
}
return msg.wParam;
}
void StopWin32App ()
{
HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd"));
if (hWnd)
PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_EXIT, 0), 0);
// UnSubscribeFromEvents(); // TODO: understand why unsubscribing crashes app
UnregisterClass (I2PD_WIN32_CLASSNAME, GetModuleHandle(NULL));
}
bool GracefulShutdown ()
{
HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd"));
if (hWnd)
PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_GRACEFUL_SHUTDOWN, 0), 0);
return hWnd;
}
bool StopGracefulShutdown ()
{
HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd"));
if (hWnd)
PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_STOP_GRACEFUL_SHUTDOWN, 0), 0);
return hWnd;
}
}
}