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363 lines
14 KiB
C++
363 lines
14 KiB
C++
#include <fstream>
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#include <iostream>
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#include <boost/property_tree/ptree.hpp>
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#include <boost/property_tree/ini_parser.hpp>
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#include "Config.h"
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#include "FS.h"
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#include "Log.h"
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#include "Identity.h"
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#include "ClientContext.h"
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namespace i2p
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{
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namespace client
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{
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ClientContext context;
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ClientContext::ClientContext (): m_SharedLocalDestination (nullptr),
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m_HttpProxy (nullptr), m_SocksProxy (nullptr), m_SamBridge (nullptr),
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m_BOBCommandChannel (nullptr)
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{
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}
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ClientContext::~ClientContext ()
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{
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delete m_HttpProxy;
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delete m_SocksProxy;
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delete m_SamBridge;
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delete m_BOBCommandChannel;
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}
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void ClientContext::Start ()
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{
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if (!m_SharedLocalDestination)
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{
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m_SharedLocalDestination = CreateNewLocalDestination (); // non-public, DSA
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m_Destinations[m_SharedLocalDestination->GetIdentity ()->GetIdentHash ()] = m_SharedLocalDestination;
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m_SharedLocalDestination->Start ();
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}
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m_AddressBook.Start ();
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std::shared_ptr<ClientDestination> localDestination;
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bool httproxy; i2p::config::GetOption("httpproxy.enabled", httproxy);
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if (httproxy) {
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std::string httpProxyKeys; i2p::config::GetOption("httpproxy.keys", httpProxyKeys);
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std::string httpProxyAddr; i2p::config::GetOption("httpproxy.address", httpProxyAddr);
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uint16_t httpProxyPort; i2p::config::GetOption("httpproxy.port", httpProxyPort);
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LogPrint(eLogInfo, "Clients: starting HTTP Proxy at ", httpProxyAddr, ":", httpProxyPort);
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if (httpProxyKeys.length () > 0)
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{
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i2p::data::PrivateKeys keys;
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LoadPrivateKeys (keys, httpProxyKeys);
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localDestination = CreateNewLocalDestination (keys, false);
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}
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m_HttpProxy = new i2p::proxy::HTTPProxy(httpProxyAddr, httpProxyPort, localDestination);
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m_HttpProxy->Start();
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}
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bool socksproxy; i2p::config::GetOption("socksproxy.enabled", socksproxy);
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if (socksproxy) {
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std::string socksProxyKeys; i2p::config::GetOption("socksproxy.keys", socksProxyKeys);
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std::string socksProxyAddr; i2p::config::GetOption("socksproxy.address", socksProxyAddr);
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uint16_t socksProxyPort; i2p::config::GetOption("socksproxy.port", socksProxyPort);
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std::string socksOutProxyAddr; i2p::config::GetOption("socksproxy.outproxy", socksOutProxyAddr);
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uint16_t socksOutProxyPort; i2p::config::GetOption("socksproxy.outproxyport", socksOutProxyPort);
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LogPrint(eLogInfo, "Clients: starting SOCKS Proxy at ", socksProxyAddr, ":", socksProxyPort);
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if (socksProxyKeys.length () > 0)
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{
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i2p::data::PrivateKeys keys;
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LoadPrivateKeys (keys, socksProxyKeys);
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localDestination = CreateNewLocalDestination (keys, false);
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}
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m_SocksProxy = new i2p::proxy::SOCKSProxy(socksProxyAddr, socksProxyPort, socksOutProxyAddr, socksOutProxyPort, localDestination);
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m_SocksProxy->Start();
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}
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// I2P tunnels
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ReadTunnels ();
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// SAM
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bool sam; i2p::config::GetOption("sam.enabled", sam);
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if (sam) {
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std::string samAddr; i2p::config::GetOption("sam.address", samAddr);
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uint16_t samPort; i2p::config::GetOption("sam.port", samPort);
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LogPrint(eLogInfo, "Clients: starting SAM bridge at ", samAddr, ":", samPort);
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m_SamBridge = new SAMBridge (samAddr, samPort);
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m_SamBridge->Start ();
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}
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// BOB
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bool bob; i2p::config::GetOption("bob.enabled", bob);
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if (bob) {
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std::string bobAddr; i2p::config::GetOption("bob.address", bobAddr);
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uint16_t bobPort; i2p::config::GetOption("bob.port", bobPort);
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LogPrint(eLogInfo, "Clients: starting BOB command channel at ", bobAddr, ":", bobPort);
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m_BOBCommandChannel = new BOBCommandChannel (bobAddr, bobPort);
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m_BOBCommandChannel->Start ();
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}
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}
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void ClientContext::Stop ()
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{
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LogPrint(eLogInfo, "Clients: stopping HTTP Proxy");
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m_HttpProxy->Stop();
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delete m_HttpProxy;
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m_HttpProxy = nullptr;
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LogPrint(eLogInfo, "Clients: stopping SOCKS Proxy");
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m_SocksProxy->Stop();
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delete m_SocksProxy;
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m_SocksProxy = nullptr;
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for (auto& it: m_ClientTunnels)
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{
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LogPrint(eLogInfo, "Clients: stopping I2P client tunnel on port ", it.first);
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it.second->Stop ();
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}
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m_ClientTunnels.clear ();
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for (auto& it: m_ServerTunnels)
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{
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LogPrint(eLogInfo, "Clients: stopping I2P server tunnel");
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it.second->Stop ();
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}
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m_ServerTunnels.clear ();
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if (m_SamBridge)
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{
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LogPrint(eLogInfo, "Clients: stopping SAM bridge");
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m_SamBridge->Stop ();
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delete m_SamBridge;
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m_SamBridge = nullptr;
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}
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if (m_BOBCommandChannel)
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{
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LogPrint(eLogInfo, "Clients: stopping BOB command channel");
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m_BOBCommandChannel->Stop ();
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delete m_BOBCommandChannel;
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m_BOBCommandChannel = nullptr;
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}
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LogPrint(eLogInfo, "Clients: stopping AddressBook");
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m_AddressBook.Stop ();
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for (auto it: m_Destinations)
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it.second->Stop ();
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m_Destinations.clear ();
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m_SharedLocalDestination = nullptr;
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}
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void ClientContext::LoadPrivateKeys (i2p::data::PrivateKeys& keys, const std::string& filename, i2p::data::SigningKeyType sigType)
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{
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std::string fullPath = i2p::fs::DataDirPath (filename);
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std::ifstream s(fullPath, std::ifstream::binary);
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if (s.is_open ())
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{
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s.seekg (0, std::ios::end);
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size_t len = s.tellg();
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s.seekg (0, std::ios::beg);
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uint8_t * buf = new uint8_t[len];
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s.read ((char *)buf, len);
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keys.FromBuffer (buf, len);
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delete[] buf;
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LogPrint (eLogInfo, "Clients: Local address ", m_AddressBook.ToAddress(keys.GetPublic ()->GetIdentHash ()), " loaded");
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}
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else
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{
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LogPrint (eLogError, "Clients: can't open file ", fullPath, " Creating new one with signature type ", sigType);
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keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType);
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std::ofstream f (fullPath, std::ofstream::binary | std::ofstream::out);
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size_t len = keys.GetFullLen ();
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uint8_t * buf = new uint8_t[len];
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len = keys.ToBuffer (buf, len);
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f.write ((char *)buf, len);
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delete[] buf;
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LogPrint (eLogInfo, "Clients: New private keys file ", fullPath, " for ", m_AddressBook.ToAddress(keys.GetPublic ()->GetIdentHash ()), " created");
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}
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}
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std::shared_ptr<ClientDestination> ClientContext::CreateNewLocalDestination (bool isPublic, i2p::data::SigningKeyType sigType,
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const std::map<std::string, std::string> * params)
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{
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i2p::data::PrivateKeys keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType);
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auto localDestination = std::make_shared<ClientDestination> (keys, isPublic, params);
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std::unique_lock<std::mutex> l(m_DestinationsMutex);
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m_Destinations[localDestination->GetIdentHash ()] = localDestination;
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localDestination->Start ();
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return localDestination;
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}
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void ClientContext::DeleteLocalDestination (std::shared_ptr<ClientDestination> destination)
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{
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if (!destination) return;
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auto it = m_Destinations.find (destination->GetIdentHash ());
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if (it != m_Destinations.end ())
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{
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auto d = it->second;
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{
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std::unique_lock<std::mutex> l(m_DestinationsMutex);
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m_Destinations.erase (it);
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}
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d->Stop ();
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}
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}
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std::shared_ptr<ClientDestination> ClientContext::CreateNewLocalDestination (const i2p::data::PrivateKeys& keys, bool isPublic,
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const std::map<std::string, std::string> * params)
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{
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auto it = m_Destinations.find (keys.GetPublic ()->GetIdentHash ());
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if (it != m_Destinations.end ())
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{
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LogPrint (eLogWarning, "Clients: Local destination ", m_AddressBook.ToAddress(keys.GetPublic ()->GetIdentHash ()), " exists");
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if (!it->second->IsRunning ())
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{
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it->second->Start ();
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return it->second;
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}
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return nullptr;
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}
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auto localDestination = std::make_shared<ClientDestination> (keys, isPublic, params);
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std::unique_lock<std::mutex> l(m_DestinationsMutex);
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m_Destinations[keys.GetPublic ()->GetIdentHash ()] = localDestination;
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localDestination->Start ();
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return localDestination;
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}
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std::shared_ptr<ClientDestination> ClientContext::FindLocalDestination (const i2p::data::IdentHash& destination) const
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{
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auto it = m_Destinations.find (destination);
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if (it != m_Destinations.end ())
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return it->second;
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return nullptr;
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}
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template<typename Section, typename Type>
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std::string ClientContext::GetI2CPOption (const Section& section, const std::string& name, const Type& value) const
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{
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return section.second.get (boost::property_tree::ptree::path_type (name, '/'), std::to_string (value));
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}
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template<typename Section>
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void ClientContext::ReadI2CPOptions (const Section& section, std::map<std::string, std::string>& options) const
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{
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options[I2CP_PARAM_INBOUND_TUNNEL_LENGTH] = GetI2CPOption (section, I2CP_PARAM_INBOUND_TUNNEL_LENGTH, DEFAULT_INBOUND_TUNNEL_LENGTH);
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options[I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH] = GetI2CPOption (section, I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH, DEFAULT_OUTBOUND_TUNNEL_LENGTH);
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options[I2CP_PARAM_INBOUND_TUNNELS_QUANTITY] = GetI2CPOption (section, I2CP_PARAM_INBOUND_TUNNELS_QUANTITY, DEFAULT_INBOUND_TUNNELS_QUANTITY);
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options[I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY] = GetI2CPOption (section, I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY, DEFAULT_OUTBOUND_TUNNELS_QUANTITY);
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options[I2CP_PARAM_TAGS_TO_SEND] = GetI2CPOption (section, I2CP_PARAM_TAGS_TO_SEND, DEFAULT_TAGS_TO_SEND);
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}
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void ClientContext::ReadTunnels ()
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{
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boost::property_tree::ptree pt;
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std::string pathTunConf;
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i2p::config::GetOption("tunconf", pathTunConf);
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if (pathTunConf == "")
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return;
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try {
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boost::property_tree::read_ini (pathTunConf, pt);
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} catch (std::exception& ex) {
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LogPrint (eLogWarning, "Clients: Can't read ", pathTunConf, ": ", ex.what ());
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return;
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}
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int numClientTunnels = 0, numServerTunnels = 0;
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for (auto& section: pt)
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{
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std::string name = section.first;
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try
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{
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std::string type = section.second.get<std::string> (I2P_TUNNELS_SECTION_TYPE);
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if (type == I2P_TUNNELS_SECTION_TYPE_CLIENT)
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{
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// mandatory params
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std::string dest = section.second.get<std::string> (I2P_CLIENT_TUNNEL_DESTINATION);
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int port = section.second.get<int> (I2P_CLIENT_TUNNEL_PORT);
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// optional params
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std::string keys = section.second.get (I2P_CLIENT_TUNNEL_KEYS, "");
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std::string address = section.second.get (I2P_CLIENT_TUNNEL_ADDRESS, "127.0.0.1");
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int destinationPort = section.second.get (I2P_CLIENT_TUNNEL_DESTINATION_PORT, 0);
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i2p::data::SigningKeyType sigType = section.second.get (I2P_CLIENT_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256);
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// I2CP
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std::map<std::string, std::string> options;
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ReadI2CPOptions (section, options);
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std::shared_ptr<ClientDestination> localDestination = nullptr;
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if (keys.length () > 0)
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{
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i2p::data::PrivateKeys k;
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LoadPrivateKeys (k, keys, sigType);
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localDestination = FindLocalDestination (k.GetPublic ()->GetIdentHash ());
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if (!localDestination)
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localDestination = CreateNewLocalDestination (k, false, &options);
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}
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auto clientTunnel = new I2PClientTunnel (name, dest, address, port, localDestination, destinationPort);
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if (m_ClientTunnels.insert (std::make_pair (port, std::unique_ptr<I2PClientTunnel>(clientTunnel))).second)
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clientTunnel->Start ();
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else
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LogPrint (eLogError, "Clients: I2P client tunnel with port ", port, " already exists");
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numClientTunnels++;
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}
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else if (type == I2P_TUNNELS_SECTION_TYPE_SERVER || type == I2P_TUNNELS_SECTION_TYPE_HTTP)
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{
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// mandatory params
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std::string host = section.second.get<std::string> (I2P_SERVER_TUNNEL_HOST);
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int port = section.second.get<int> (I2P_SERVER_TUNNEL_PORT);
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std::string keys = section.second.get<std::string> (I2P_SERVER_TUNNEL_KEYS);
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// optional params
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int inPort = section.second.get (I2P_SERVER_TUNNEL_INPORT, 0);
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std::string accessList = section.second.get (I2P_SERVER_TUNNEL_ACCESS_LIST, "");
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i2p::data::SigningKeyType sigType = section.second.get (I2P_SERVER_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256);
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// I2CP
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std::map<std::string, std::string> options;
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ReadI2CPOptions (section, options);
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std::shared_ptr<ClientDestination> localDestination = nullptr;
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i2p::data::PrivateKeys k;
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LoadPrivateKeys (k, keys, sigType);
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localDestination = FindLocalDestination (k.GetPublic ()->GetIdentHash ());
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if (!localDestination)
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localDestination = CreateNewLocalDestination (k, true, &options);
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I2PServerTunnel * serverTunnel = (type == I2P_TUNNELS_SECTION_TYPE_HTTP) ?
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new I2PServerTunnelHTTP (name, host, port, localDestination, inPort) :
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new I2PServerTunnel (name, host, port, localDestination, inPort);
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if (accessList.length () > 0)
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{
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std::set<i2p::data::IdentHash> idents;
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size_t pos = 0, comma;
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do
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{
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comma = accessList.find (',', pos);
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i2p::data::IdentHash ident;
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ident.FromBase32 (accessList.substr (pos, comma != std::string::npos ? comma - pos : std::string::npos));
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idents.insert (ident);
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pos = comma + 1;
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}
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while (comma != std::string::npos);
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serverTunnel->SetAccessList (idents);
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}
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if (m_ServerTunnels.insert (std::make_pair (
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std::make_tuple (localDestination->GetIdentHash (), inPort),
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std::unique_ptr<I2PServerTunnel>(serverTunnel))).second)
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serverTunnel->Start ();
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else
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LogPrint (eLogError, "Clients: I2P server tunnel for destination ", m_AddressBook.ToAddress(localDestination->GetIdentHash ()), " already exists");
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numServerTunnels++;
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}
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else
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LogPrint (eLogWarning, "Clients: Unknown section type=", type, " of ", name, " in ", pathTunConf);
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}
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catch (std::exception& ex)
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{
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LogPrint (eLogError, "Clients: Can't read tunnel ", name, " params: ", ex.what ());
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}
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}
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LogPrint (eLogInfo, "Clients: ", numClientTunnels, " I2P client tunnels created");
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LogPrint (eLogInfo, "Clients: ", numServerTunnels, " I2P server tunnels created");
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}
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}
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}
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