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/*
* Copyright (c) 2013-2024, 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 <thread>
#include <memory>
#include "Daemon.h"
#include "Config.h"
#include "Log.h"
#include "FS.h"
#include "Base.h"
#include "version.h"
#include "Transports.h"
#include "RouterInfo.h"
#include "RouterContext.h"
#include "Tunnel.h"
#include "HTTP.h"
#include "NetDb.hpp"
#include "Garlic.h"
#include "Streaming.h"
#include "Destination.h"
#include "HTTPServer.h"
#include "I2PControl.h"
#include "ClientContext.h"
#include "Crypto.h"
#include "UPnP.h"
#include "Timestamp.h"
#include "I18N.h"
namespace i2p
{
namespace util
{
class Daemon_Singleton::Daemon_Singleton_Private
{
public:
Daemon_Singleton_Private() {};
~Daemon_Singleton_Private() {};
std::unique_ptr<i2p::http::HTTPServer> httpServer;
std::unique_ptr<i2p::client::I2PControlService> m_I2PControlService;
std::unique_ptr<i2p::transport::UPnP> UPnP;
std::unique_ptr<i2p::util::NTPTimeSync> m_NTPSync;
};
Daemon_Singleton::Daemon_Singleton() : isDaemon(false), running(true), d(*new Daemon_Singleton_Private()) {}
Daemon_Singleton::~Daemon_Singleton() {
delete &d;
}
bool Daemon_Singleton::IsService () const
{
bool service = false;
i2p::config::GetOption("service", service);
return service;
}
void Daemon_Singleton::setDataDir(std::string path)
{
if (path != "")
DaemonDataDir = path;
}
bool Daemon_Singleton::init(int argc, char* argv[]) {
return init(argc, argv, nullptr);
}
bool Daemon_Singleton::init(int argc, char* argv[], std::shared_ptr<std::ostream> logstream)
{
i2p::config::Init();
i2p::config::ParseCmdline(argc, argv);
std::string config; i2p::config::GetOption("conf", config);
std::string datadir;
if(DaemonDataDir != "") {
datadir = DaemonDataDir;
} else {
i2p::config::GetOption("datadir", datadir);
}
i2p::fs::DetectDataDir(datadir, IsService());
i2p::fs::Init();
datadir = i2p::fs::GetDataDir();
if (config == "")
{
config = i2p::fs::DataDirPath("i2pd.conf");
if (!i2p::fs::Exists (config)) {
// use i2pd.conf only if exists
config = ""; /* reset */
}
}
i2p::config::ParseConfig(config);
i2p::config::Finalize();
i2p::config::GetOption("daemon", isDaemon);
std::string certsdir; i2p::config::GetOption("certsdir", certsdir);
i2p::fs::SetCertsDir(certsdir);
certsdir = i2p::fs::GetCertsDir();
std::string logs = ""; i2p::config::GetOption("log", logs);
std::string logfile = ""; i2p::config::GetOption("logfile", logfile);
std::string loglevel = ""; i2p::config::GetOption("loglevel", loglevel);
bool logclftime; i2p::config::GetOption("logclftime", logclftime);
/* setup logging */
if (logclftime)
i2p::log::Logger().SetTimeFormat ("[%d/%b/%Y:%H:%M:%S %z]");
#ifdef WIN32_APP
// Win32 app with GUI supports only logging to file
logs = "file";
#else
if (isDaemon && (logs == "" || logs == "stdout"))
logs = "file";
#endif
i2p::log::Logger().SetLogLevel(loglevel);
if (logstream) {
LogPrint(eLogInfo, "Log: Sending messages to std::ostream");
i2p::log::Logger().SendTo (logstream);
} else if (logs == "file") {
if (logfile == "")
logfile = i2p::fs::DataDirPath("i2pd.log");
LogPrint(eLogInfo, "Log: Sending messages to ", logfile);
i2p::log::Logger().SendTo (logfile);
#ifndef _WIN32
} else if (logs == "syslog") {
LogPrint(eLogInfo, "Log: Sending messages to syslog");
i2p::log::Logger().SendTo("i2pd", LOG_DAEMON);
#endif
} else {
// use stdout -- default
}
LogPrint(eLogNone, "i2pd v", VERSION, " (", I2P_VERSION, ") starting...");
LogPrint(eLogDebug, "FS: Main config file: ", config);
LogPrint(eLogDebug, "FS: Data directory: ", datadir);
LogPrint(eLogDebug, "FS: Certificates directory: ", certsdir);
bool precomputation; i2p::config::GetOption("precomputation.elgamal", precomputation);
bool ssu; i2p::config::GetOption("ssu", ssu);
if (!ssu && i2p::config::IsDefault ("precomputation.elgamal"))
precomputation = false; // we don't elgamal table if no ssu, unless it's specified explicitly
i2p::crypto::InitCrypto (precomputation);
i2p::transport::InitAddressFromIface (); // get address4/6 from interfaces
int netID; i2p::config::GetOption("netid", netID);
i2p::context.SetNetID (netID);
bool checkReserved; i2p::config::GetOption("reservedrange", checkReserved);
i2p::transport::transports.SetCheckReserved(checkReserved);
i2p::context.Init ();
i2p::transport::InitTransports ();
bool isFloodfill; i2p::config::GetOption("floodfill", isFloodfill);
if (isFloodfill)
{
LogPrint(eLogInfo, "Daemon: Router configured as floodfill");
i2p::context.SetFloodfill (true);
}
else
i2p::context.SetFloodfill (false);
bool transit; i2p::config::GetOption("notransit", transit);
i2p::context.SetAcceptsTunnels (!transit);
uint32_t transitTunnels; i2p::config::GetOption("limits.transittunnels", transitTunnels);
if (isFloodfill && i2p::config::IsDefault ("limits.transittunnels"))
transitTunnels *= 2; // double default number of transit tunnels for floodfill
i2p::tunnel::tunnels.SetMaxNumTransitTunnels (transitTunnels);
/* this section also honors 'floodfill' flag, if set above */
std::string bandwidth; i2p::config::GetOption("bandwidth", bandwidth);
if (bandwidth.length () > 0)
{
if (bandwidth.length () == 1 && ((bandwidth[0] >= 'K' && bandwidth[0] <= 'P') || bandwidth[0] == 'X' ))
{
i2p::context.SetBandwidth (bandwidth[0]);
LogPrint(eLogInfo, "Daemon: Bandwidth set to ", i2p::context.GetBandwidthLimit (), "KBps");
}
else
{
auto value = std::atoi(bandwidth.c_str());
if (value > 0)
{
i2p::context.SetBandwidth (value);
LogPrint(eLogInfo, "Daemon: Bandwidth set to ", i2p::context.GetBandwidthLimit (), " KBps");
}
else
{
LogPrint(eLogInfo, "Daemon: Unexpected bandwidth ", bandwidth, ". Set to 'low'");
i2p::context.SetBandwidth (i2p::data::CAPS_FLAG_LOW_BANDWIDTH2);
}
}
}
else if (isFloodfill)
{
LogPrint(eLogInfo, "Daemon: Floodfill bandwidth set to 'extra'");
i2p::context.SetBandwidth (i2p::data::CAPS_FLAG_EXTRA_BANDWIDTH2);
}
else
{
LogPrint(eLogInfo, "Daemon: bandwidth set to 'low'");
i2p::context.SetBandwidth (i2p::data::CAPS_FLAG_LOW_BANDWIDTH2);
}
int shareRatio; i2p::config::GetOption("share", shareRatio);
i2p::context.SetShareRatio (shareRatio);
std::string family; i2p::config::GetOption("family", family);
i2p::context.SetFamily (family);
if (family.length () > 0)
LogPrint(eLogInfo, "Daemon: Router family set to ", family);
bool trust; i2p::config::GetOption("trust.enabled", trust);
if (trust)
{
LogPrint(eLogInfo, "Daemon: Explicit trust enabled");
std::string fam; i2p::config::GetOption("trust.family", fam);
std::string routers; i2p::config::GetOption("trust.routers", routers);
bool restricted = false;
if (fam.length() > 0)
{
std::set<std::string> fams;
size_t pos = 0, comma;
do
{
comma = fam.find (',', pos);
fams.insert (fam.substr (pos, comma != std::string::npos ? comma - pos : std::string::npos));
pos = comma + 1;
}
while (comma != std::string::npos);
i2p::transport::transports.RestrictRoutesToFamilies(fams);
restricted = fams.size() > 0;
}
if (routers.length() > 0) {
std::set<i2p::data::IdentHash> idents;
size_t pos = 0, comma;
do
{
comma = routers.find (',', pos);
i2p::data::IdentHash ident;
ident.FromBase64 (routers.substr (pos, comma != std::string::npos ? comma - pos : std::string::npos));
idents.insert (ident);
pos = comma + 1;
}
while (comma != std::string::npos);
LogPrint(eLogInfo, "Daemon: Setting restricted routes to use ", idents.size(), " trusted routers");
i2p::transport::transports.RestrictRoutesToRouters(idents);
restricted = idents.size() > 0;
}
if(!restricted)
LogPrint(eLogError, "Daemon: No trusted routers of families specified");
}
bool hidden; i2p::config::GetOption("trust.hidden", hidden);
if (hidden)
{
LogPrint(eLogInfo, "Daemon: Hidden mode enabled");
i2p::context.SetHidden(true);
}
std::string httpLang; i2p::config::GetOption("http.lang", httpLang);
i2p::i18n::SetLanguage(httpLang);
return true;
}
bool Daemon_Singleton::start()
{
i2p::log::Logger().Start();
LogPrint(eLogInfo, "Daemon: Starting NetDB");
i2p::data::netdb.Start();
bool upnp; i2p::config::GetOption("upnp.enabled", upnp);
if (upnp) {
d.UPnP = std::unique_ptr<i2p::transport::UPnP>(new i2p::transport::UPnP);
d.UPnP->Start ();
}
bool nettime; i2p::config::GetOption("nettime.enabled", nettime);
if (nettime)
{
d.m_NTPSync = std::unique_ptr<i2p::util::NTPTimeSync>(new i2p::util::NTPTimeSync);
d.m_NTPSync->Start ();
}
bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2);
bool ssu2; i2p::config::GetOption("ssu2.enabled", ssu2);
LogPrint(eLogInfo, "Daemon: Starting Transports");
if(!ssu2) LogPrint(eLogInfo, "Daemon: SSU2 disabled");
if(!ntcp2) LogPrint(eLogInfo, "Daemon: NTCP2 disabled");
i2p::transport::transports.Start(ntcp2, ssu2);
if (i2p::transport::transports.IsBoundSSU2() || i2p::transport::transports.IsBoundNTCP2())
LogPrint(eLogInfo, "Daemon: Transports started");
else
{
LogPrint(eLogCritical, "Daemon: Failed to start Transports");
/** shut down netdb right away */
i2p::transport::transports.Stop();
i2p::data::netdb.Stop();
return false;
}
bool http; i2p::config::GetOption("http.enabled", http);
if (http) {
std::string httpAddr; i2p::config::GetOption("http.address", httpAddr);
uint16_t httpPort; i2p::config::GetOption("http.port", httpPort);
LogPrint(eLogInfo, "Daemon: Starting Webconsole at ", httpAddr, ":", httpPort);
try
{
d.httpServer = std::unique_ptr<i2p::http::HTTPServer>(new i2p::http::HTTPServer(httpAddr, httpPort));
d.httpServer->Start();
}
catch (std::exception& ex)
{
LogPrint (eLogCritical, "Daemon: Failed to start Webconsole: ", ex.what ());
ThrowFatal ("Unable to start webconsole at ", httpAddr, ":", httpPort, ": ", ex.what ());
}
}
LogPrint(eLogInfo, "Daemon: Starting Tunnels");
i2p::tunnel::tunnels.Start();
LogPrint(eLogInfo, "Daemon: Starting Router context");
i2p::context.Start();
LogPrint(eLogInfo, "Daemon: Starting Client");
i2p::client::context.Start ();
// I2P Control Protocol
bool i2pcontrol; i2p::config::GetOption("i2pcontrol.enabled", i2pcontrol);
if (i2pcontrol) {
std::string i2pcpAddr; i2p::config::GetOption("i2pcontrol.address", i2pcpAddr);
uint16_t i2pcpPort; i2p::config::GetOption("i2pcontrol.port", i2pcpPort);
LogPrint(eLogInfo, "Daemon: Starting I2PControl at ", i2pcpAddr, ":", i2pcpPort);
try
{
d.m_I2PControlService = std::unique_ptr<i2p::client::I2PControlService>(new i2p::client::I2PControlService (i2pcpAddr, i2pcpPort));
d.m_I2PControlService->Start ();
}
catch (std::exception& ex)
{
LogPrint (eLogCritical, "Daemon: Failed to start I2PControl: ", ex.what ());
ThrowFatal ("Unable to start I2PControl service at ", i2pcpAddr, ":", i2pcpPort, ": ", ex.what ());
}
}
return true;
}
bool Daemon_Singleton::stop()
{
LogPrint(eLogInfo, "Daemon: Shutting down");
LogPrint(eLogInfo, "Daemon: Stopping Client");
i2p::client::context.Stop();
LogPrint(eLogInfo, "Daemon: Stopping Router context");
i2p::context.Stop();
LogPrint(eLogInfo, "Daemon: Stopping Tunnels");
i2p::tunnel::tunnels.Stop();
if (d.UPnP)
{
d.UPnP->Stop ();
d.UPnP = nullptr;
}
if (d.m_NTPSync)
{
d.m_NTPSync->Stop ();
d.m_NTPSync = nullptr;
}
LogPrint(eLogInfo, "Daemon: Stopping Transports");
i2p::transport::transports.Stop();
LogPrint(eLogInfo, "Daemon: Stopping NetDB");
i2p::data::netdb.Stop();
if (d.httpServer) {
LogPrint(eLogInfo, "Daemon: Stopping HTTP Server");
d.httpServer->Stop();
d.httpServer = nullptr;
}
if (d.m_I2PControlService)
{
LogPrint(eLogInfo, "Daemon: Stopping I2PControl");
d.m_I2PControlService->Stop ();
d.m_I2PControlService = nullptr;
}
i2p::crypto::TerminateCrypto ();
i2p::log::Logger().Stop();
return true;
}
}
}