I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#include <fstream>
#include "util.h"
#include "Log.h"
#include "Identity.h"
#include "ClientContext.h"
namespace i2p
{
namespace client
{
ClientContext context;
ClientContext::ClientContext (): m_SharedLocalDestination (nullptr),
m_HttpProxy (nullptr), m_SocksProxy (nullptr), m_IrcTunnel (nullptr),
m_ServerTunnel (nullptr), m_SamBridge (nullptr), m_BOBCommandChannel (nullptr)
{
}
ClientContext::~ClientContext ()
{
delete m_HttpProxy;
delete m_SocksProxy;
delete m_IrcTunnel;
delete m_ServerTunnel;
delete m_SamBridge;
delete m_BOBCommandChannel;
}
void ClientContext::Start ()
{
if (!m_SharedLocalDestination)
{
m_SharedLocalDestination = CreateNewLocalDestination (); // non-public, DSA
m_Destinations[m_SharedLocalDestination->GetIdentity ().GetIdentHash ()] = m_SharedLocalDestination;
m_SharedLocalDestination->Start ();
}
m_HttpProxy = new i2p::proxy::HTTPProxy(i2p::util::config::GetArg("-httpproxyport", 4446));
m_HttpProxy->Start();
LogPrint("HTTP Proxy started");
m_SocksProxy = new i2p::proxy::SOCKSProxy(i2p::util::config::GetArg("-socksproxyport", 4447));
m_SocksProxy->Start();
LogPrint("SOCKS Proxy Started");
std::string ircDestination = i2p::util::config::GetArg("-ircdest", "");
if (ircDestination.length () > 0) // ircdest is presented
{
ClientDestination * localDestination = nullptr;
std::string ircKeys = i2p::util::config::GetArg("-irckeys", "");
if (ircKeys.length () > 0)
localDestination = LoadLocalDestination (ircKeys, false);
m_IrcTunnel = new I2PClientTunnel (ircDestination, i2p::util::config::GetArg("-ircport", 6668), localDestination);
m_IrcTunnel->Start ();
LogPrint("IRC tunnel started");
}
std::string eepKeys = i2p::util::config::GetArg("-eepkeys", "");
if (eepKeys.length () > 0) // eepkeys file is presented
{
auto localDestination = LoadLocalDestination (eepKeys, true);
m_ServerTunnel = new I2PServerTunnel (i2p::util::config::GetArg("-eephost", "127.0.0.1"),
i2p::util::config::GetArg("-eepport", 80), localDestination);
m_ServerTunnel->Start ();
LogPrint("Server tunnel started");
}
int samPort = i2p::util::config::GetArg("-samport", 0);
if (samPort)
{
m_SamBridge = new SAMBridge (samPort);
m_SamBridge->Start ();
LogPrint("SAM bridge started");
}
int bobPort = i2p::util::config::GetArg("-bobport", 0);
if (bobPort)
{
m_BOBCommandChannel = new BOBCommandChannel (bobPort);
m_BOBCommandChannel->Start ();
LogPrint("BOB command channel started");
}
m_AddressBook.StartSubscriptions ();
}
void ClientContext::Stop ()
{
m_AddressBook.StopSubscriptions ();
m_HttpProxy->Stop();
delete m_HttpProxy;
m_HttpProxy = nullptr;
LogPrint("HTTP Proxy stoped");
m_SocksProxy->Stop();
delete m_SocksProxy;
m_SocksProxy = nullptr;
LogPrint("SOCKS Proxy stoped");
if (m_IrcTunnel)
{
m_IrcTunnel->Stop ();
delete m_IrcTunnel;
m_IrcTunnel = nullptr;
LogPrint("IRC tunnel stoped");
}
if (m_ServerTunnel)
{
m_ServerTunnel->Stop ();
delete m_ServerTunnel;
m_ServerTunnel = nullptr;
LogPrint("Server tunnel stoped");
}
if (m_SamBridge)
{
m_SamBridge->Stop ();
delete m_SamBridge;
m_SamBridge = nullptr;
LogPrint("SAM brdige stoped");
}
if (m_BOBCommandChannel)
{
m_BOBCommandChannel->Stop ();
delete m_BOBCommandChannel;
m_BOBCommandChannel = nullptr;
LogPrint("BOB command channel stoped");
}
for (auto it: m_Destinations)
{
it.second->Stop ();
delete it.second;
}
m_Destinations.clear ();
m_SharedLocalDestination = 0; // deleted through m_Destination
}
ClientDestination * ClientContext::LoadLocalDestination (const std::string& filename, bool isPublic)
{
i2p::data::PrivateKeys keys;
std::string fullPath = i2p::util::filesystem::GetFullPath (filename);
std::ifstream s(fullPath.c_str (), std::ifstream::binary);
if (s.is_open ())
{
s.seekg (0, std::ios::end);
size_t len = s.tellg();
s.seekg (0, std::ios::beg);
uint8_t * buf = new uint8_t[len];
s.read ((char *)buf, len);
keys.FromBuffer (buf, len);
delete[] buf;
LogPrint ("Local address ", m_AddressBook.ToAddress(keys.GetPublic ().GetIdentHash ()), " loaded");
}
else
{
LogPrint ("Can't open file ", fullPath, " Creating new one");
keys = i2p::data::PrivateKeys::CreateRandomKeys (i2p::data::SIGNING_KEY_TYPE_DSA_SHA1);
std::ofstream f (fullPath, std::ofstream::binary | std::ofstream::out);
size_t len = keys.GetFullLen ();
uint8_t * buf = new uint8_t[len];
len = keys.ToBuffer (buf, len);
f.write ((char *)buf, len);
delete[] buf;
LogPrint ("New private keys file ", fullPath, " for ", m_AddressBook.ToAddress(keys.GetPublic ().GetIdentHash ()), " created");
}
auto localDestination = new ClientDestination (keys, isPublic);
std::unique_lock<std::mutex> l(m_DestinationsMutex);
m_Destinations[localDestination->GetIdentHash ()] = localDestination;
localDestination->Start ();
return localDestination;
}
ClientDestination * ClientContext::CreateNewLocalDestination (bool isPublic, i2p::data::SigningKeyType sigType,
const std::map<std::string, std::string> * params)
{
i2p::data::PrivateKeys keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType);
auto localDestination = new ClientDestination (keys, isPublic, params);
std::unique_lock<std::mutex> l(m_DestinationsMutex);
m_Destinations[localDestination->GetIdentHash ()] = localDestination;
localDestination->Start ();
return localDestination;
}
void ClientContext::DeleteLocalDestination (ClientDestination * destination)
{
if (!destination) return;
auto it = m_Destinations.find (destination->GetIdentHash ());
if (it != m_Destinations.end ())
{
auto d = it->second;
{
std::unique_lock<std::mutex> l(m_DestinationsMutex);
m_Destinations.erase (it);
}
d->Stop ();
delete d;
}
}
ClientDestination * ClientContext::CreateNewLocalDestination (const i2p::data::PrivateKeys& keys, bool isPublic,
const std::map<std::string, std::string> * params)
{
auto it = m_Destinations.find (keys.GetPublic ().GetIdentHash ());
if (it != m_Destinations.end ())
{
LogPrint ("Local destination ", m_AddressBook.ToAddress(keys.GetPublic ().GetIdentHash ()), " exists");
if (!it->second->IsRunning ())
{
it->second->Start ();
return it->second;
}
return nullptr;
}
auto localDestination = new ClientDestination (keys, isPublic, params);
std::unique_lock<std::mutex> l(m_DestinationsMutex);
m_Destinations[keys.GetPublic ().GetIdentHash ()] = localDestination;
localDestination->Start ();
return localDestination;
}
ClientDestination * ClientContext::FindLocalDestination (const i2p::data::IdentHash& destination) const
{
auto it = m_Destinations.find (destination);
if (it != m_Destinations.end ())
return it->second;
return nullptr;
}
}
}