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I2P: End-to-End encrypted and anonymous Internet
https://i2pd.website/
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886 lines
26 KiB
886 lines
26 KiB
/* |
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* Copyright (c) 2013-2020, The PurpleI2P Project |
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* |
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* This file is part of Purple i2pd project and licensed under BSD3 |
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* |
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* See full license text in LICENSE file at top of project tree |
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*/ |
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#include <string.h> |
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#include "Log.h" |
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#include "ClientContext.h" |
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#include "util.h" |
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#include "BOB.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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BOBI2PInboundTunnel::BOBI2PInboundTunnel (const boost::asio::ip::tcp::endpoint& ep, std::shared_ptr<ClientDestination> localDestination): |
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BOBI2PTunnel (localDestination), m_Acceptor (localDestination->GetService (), ep) |
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{ |
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} |
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BOBI2PInboundTunnel::~BOBI2PInboundTunnel () |
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{ |
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Stop (); |
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} |
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void BOBI2PInboundTunnel::Start () |
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{ |
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m_Acceptor.listen (); |
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Accept (); |
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} |
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void BOBI2PInboundTunnel::Stop () |
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{ |
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m_Acceptor.close(); |
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ClearHandlers (); |
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} |
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void BOBI2PInboundTunnel::Accept () |
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{ |
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auto receiver = std::make_shared<AddressReceiver> (); |
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receiver->socket = std::make_shared<boost::asio::ip::tcp::socket> (GetService ()); |
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m_Acceptor.async_accept (*receiver->socket, std::bind (&BOBI2PInboundTunnel::HandleAccept, this, |
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std::placeholders::_1, receiver)); |
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} |
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void BOBI2PInboundTunnel::HandleAccept (const boost::system::error_code& ecode, std::shared_ptr<AddressReceiver> receiver) |
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{ |
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if (!ecode) |
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{ |
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Accept (); |
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ReceiveAddress (receiver); |
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} |
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} |
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void BOBI2PInboundTunnel::ReceiveAddress (std::shared_ptr<AddressReceiver> receiver) |
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{ |
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receiver->socket->async_read_some (boost::asio::buffer( |
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receiver->buffer + receiver->bufferOffset, |
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BOB_COMMAND_BUFFER_SIZE - receiver->bufferOffset), |
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std::bind(&BOBI2PInboundTunnel::HandleReceivedAddress, this, |
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std::placeholders::_1, std::placeholders::_2, receiver)); |
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} |
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void BOBI2PInboundTunnel::HandleReceivedAddress (const boost::system::error_code& ecode, std::size_t bytes_transferred, |
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std::shared_ptr<AddressReceiver> receiver) |
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{ |
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if (ecode) |
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LogPrint (eLogError, "BOB: inbound tunnel read error: ", ecode.message ()); |
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else |
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{ |
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receiver->bufferOffset += bytes_transferred; |
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receiver->buffer[receiver->bufferOffset] = 0; |
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char * eol = strchr (receiver->buffer, '\n'); |
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if (eol) |
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{ |
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*eol = 0; |
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if (eol != receiver->buffer && eol[-1] == '\r') eol[-1] = 0; // workaround for Transmission, it sends '\r\n' terminated address |
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receiver->data = (uint8_t *)eol + 1; |
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receiver->dataLen = receiver->bufferOffset - (eol - receiver->buffer + 1); |
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auto addr = context.GetAddressBook ().GetAddress (receiver->buffer); |
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if (!addr) |
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{ |
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LogPrint (eLogError, "BOB: address ", receiver->buffer, " not found"); |
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return; |
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} |
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if (addr->IsIdentHash ()) |
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{ |
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auto leaseSet = GetLocalDestination ()->FindLeaseSet (addr->identHash); |
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if (leaseSet) |
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CreateConnection (receiver, leaseSet); |
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else |
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GetLocalDestination ()->RequestDestination (addr->identHash, |
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std::bind (&BOBI2PInboundTunnel::HandleDestinationRequestComplete, |
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this, std::placeholders::_1, receiver)); |
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} |
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else |
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GetLocalDestination ()->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey, |
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std::bind (&BOBI2PInboundTunnel::HandleDestinationRequestComplete, |
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this, std::placeholders::_1, receiver)); |
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} |
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else |
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{ |
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if (receiver->bufferOffset < BOB_COMMAND_BUFFER_SIZE) |
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ReceiveAddress (receiver); |
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else |
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LogPrint (eLogError, "BOB: missing inbound address"); |
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} |
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} |
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} |
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void BOBI2PInboundTunnel::HandleDestinationRequestComplete (std::shared_ptr<i2p::data::LeaseSet> leaseSet, std::shared_ptr<AddressReceiver> receiver) |
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{ |
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if (leaseSet) |
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CreateConnection (receiver, leaseSet); |
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else |
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LogPrint (eLogError, "BOB: LeaseSet for inbound destination not found"); |
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} |
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void BOBI2PInboundTunnel::CreateConnection (std::shared_ptr<AddressReceiver> receiver, std::shared_ptr<const i2p::data::LeaseSet> leaseSet) |
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{ |
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LogPrint (eLogDebug, "BOB: New inbound connection"); |
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auto connection = std::make_shared<I2PTunnelConnection>(this, receiver->socket, leaseSet); |
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AddHandler (connection); |
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connection->I2PConnect (receiver->data, receiver->dataLen); |
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} |
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BOBI2POutboundTunnel::BOBI2POutboundTunnel (const std::string& outhost, int port, |
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std::shared_ptr<ClientDestination> localDestination, bool quiet): BOBI2PTunnel (localDestination), |
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m_Endpoint (boost::asio::ip::address::from_string (outhost), port), m_IsQuiet (quiet) |
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{ |
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} |
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void BOBI2POutboundTunnel::Start () |
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{ |
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Accept (); |
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} |
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void BOBI2POutboundTunnel::Stop () |
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{ |
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ClearHandlers (); |
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} |
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void BOBI2POutboundTunnel::Accept () |
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{ |
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auto localDestination = GetLocalDestination (); |
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if (localDestination) |
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localDestination->AcceptStreams (std::bind (&BOBI2POutboundTunnel::HandleAccept, this, std::placeholders::_1)); |
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else |
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LogPrint (eLogError, "BOB: Local destination not set for server tunnel"); |
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} |
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void BOBI2POutboundTunnel::HandleAccept (std::shared_ptr<i2p::stream::Stream> stream) |
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{ |
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if (stream) |
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{ |
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auto conn = std::make_shared<I2PTunnelConnection> (this, stream, std::make_shared<boost::asio::ip::tcp::socket> (GetService ()), m_Endpoint, m_IsQuiet); |
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AddHandler (conn); |
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conn->Connect (); |
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} |
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} |
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BOBDestination::BOBDestination (std::shared_ptr<ClientDestination> localDestination, |
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const std::string &nickname, const std::string &inhost, const std::string &outhost, |
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const int inport, const int outport, const bool quiet): |
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m_LocalDestination (localDestination), |
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m_OutboundTunnel (nullptr), m_InboundTunnel (nullptr), |
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m_Nickname(nickname), m_InHost(inhost), m_OutHost(outhost), |
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m_InPort(inport), m_OutPort(outport), m_Quiet(quiet) |
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{ |
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} |
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BOBDestination::~BOBDestination () |
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{ |
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delete m_OutboundTunnel; |
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delete m_InboundTunnel; |
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i2p::client::context.DeleteLocalDestination (m_LocalDestination); |
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} |
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void BOBDestination::Start () |
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{ |
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if (m_OutboundTunnel) m_OutboundTunnel->Start (); |
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if (m_InboundTunnel) m_InboundTunnel->Start (); |
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} |
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void BOBDestination::Stop () |
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{ |
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StopTunnels (); |
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m_LocalDestination->Stop (); |
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} |
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void BOBDestination::StopTunnels () |
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{ |
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if (m_OutboundTunnel) |
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{ |
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m_OutboundTunnel->Stop (); |
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delete m_OutboundTunnel; |
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m_OutboundTunnel = nullptr; |
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} |
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if (m_InboundTunnel) |
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{ |
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m_InboundTunnel->Stop (); |
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delete m_InboundTunnel; |
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m_InboundTunnel = nullptr; |
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} |
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} |
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void BOBDestination::CreateInboundTunnel (int port, const std::string& inhost) |
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{ |
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if (!m_InboundTunnel) |
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{ |
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// update inport and inhost (user can stop tunnel and change) |
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m_InPort = port; |
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m_InHost = inhost; |
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boost::asio::ip::tcp::endpoint ep(boost::asio::ip::tcp::v4(), port); |
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if (!inhost.empty ()) |
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{ |
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boost::system::error_code ec; |
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auto addr = boost::asio::ip::address::from_string (inhost, ec); |
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if (!ec) |
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ep.address (addr); |
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else |
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LogPrint (eLogError, "BOB: ", ec.message ()); |
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} |
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m_InboundTunnel = new BOBI2PInboundTunnel (ep, m_LocalDestination); |
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} |
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} |
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void BOBDestination::CreateOutboundTunnel (const std::string& outhost, int port, bool quiet) |
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{ |
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if (!m_OutboundTunnel) |
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{ |
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// update outport and outhost (user can stop tunnel and change) |
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m_OutPort = port; |
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m_OutHost = outhost; |
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m_OutboundTunnel = new BOBI2POutboundTunnel (outhost, port, m_LocalDestination, quiet); |
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} |
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} |
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BOBCommandSession::BOBCommandSession (BOBCommandChannel& owner): |
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m_Owner (owner), m_Socket (m_Owner.GetService ()), |
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m_ReceiveBuffer(BOB_COMMAND_BUFFER_SIZE + 1), m_SendBuffer(BOB_COMMAND_BUFFER_SIZE + 1), |
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m_IsOpen (true), m_IsQuiet (false), m_IsActive (false), |
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m_InPort (0), m_OutPort (0), m_CurrentDestination (nullptr) |
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{ |
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} |
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BOBCommandSession::~BOBCommandSession () |
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{ |
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} |
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void BOBCommandSession::Terminate () |
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{ |
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m_Socket.close (); |
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m_IsOpen = false; |
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} |
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void BOBCommandSession::Receive () |
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{ |
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boost::asio::async_read_until(m_Socket, m_ReceiveBuffer, '\n', |
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std::bind(&BOBCommandSession::HandleReceivedLine, shared_from_this(), |
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std::placeholders::_1, std::placeholders::_2)); |
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} |
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void BOBCommandSession::HandleReceivedLine(const boost::system::error_code& ecode, std::size_t bytes_transferred) |
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{ |
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if(ecode) |
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{ |
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LogPrint (eLogError, "BOB: command channel read error: ", ecode.message()); |
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if (ecode != boost::asio::error::operation_aborted) |
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Terminate (); |
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} |
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else |
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{ |
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std::string line; |
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std::istream is(&m_ReceiveBuffer); |
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std::getline(is, line); |
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std::string command, operand; |
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std::istringstream iss(line); |
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iss >> command >> operand; |
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// process command |
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auto& handlers = m_Owner.GetCommandHandlers(); |
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auto it = handlers.find(command); |
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if(it != handlers.end()) |
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{ |
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(this->*(it->second))(operand.c_str(), operand.length()); |
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} |
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else |
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{ |
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LogPrint (eLogError, "BOB: unknown command ", command.c_str()); |
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SendReplyError ("unknown command"); |
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} |
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} |
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} |
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void BOBCommandSession::Send () |
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{ |
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boost::asio::async_write (m_Socket, m_SendBuffer, |
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boost::asio::transfer_all (), |
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std::bind(&BOBCommandSession::HandleSent, shared_from_this (), |
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std::placeholders::_1, std::placeholders::_2)); |
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} |
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void BOBCommandSession::HandleSent (const boost::system::error_code& ecode, std::size_t bytes_transferred) |
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{ |
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if (ecode) |
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{ |
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LogPrint (eLogError, "BOB: command channel send error: ", ecode.message ()); |
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if (ecode != boost::asio::error::operation_aborted) |
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Terminate (); |
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} |
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else |
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{ |
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if (m_IsOpen) |
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Receive (); |
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else |
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Terminate (); |
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} |
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} |
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void BOBCommandSession::SendReplyOK (const char * msg) |
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{ |
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std::ostream os(&m_SendBuffer); |
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os << "OK"; |
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if(msg) |
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{ |
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os << " " << msg; |
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} |
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os << std::endl; |
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Send (); |
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} |
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void BOBCommandSession::SendReplyError (const char * msg) |
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{ |
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std::ostream os(&m_SendBuffer); |
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os << "ERROR " << msg << std::endl; |
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Send (); |
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} |
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void BOBCommandSession::SendVersion () |
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{ |
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std::ostream os(&m_SendBuffer); |
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os << "BOB 00.00.10" << std::endl; |
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SendReplyOK(); |
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} |
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void BOBCommandSession::SendRaw (const char * data) |
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{ |
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std::ostream os(&m_SendBuffer); |
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os << data << std::endl; |
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} |
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void BOBCommandSession::BuildStatusLine(bool currentTunnel, BOBDestination *dest, std::string &out) |
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{ |
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// helper lambdas |
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const auto issetStr = [](const std::string &str) { return str.empty() ? "not_set" : str; }; // for inhost, outhost |
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const auto issetNum = [&issetStr](const int p) { return issetStr(p == 0 ? "" : std::to_string(p)); }; // for inport, outport |
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const auto destExists = [](const BOBDestination * const dest) { return dest != nullptr; }; |
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const auto destReady = [](const BOBDestination * const dest) { return dest->GetLocalDestination()->IsReady(); }; |
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const auto bool_str = [](const bool v) { return v ? "true" : "false"; }; // bool -> str |
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// tunnel info |
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const std::string nickname = currentTunnel ? m_Nickname : dest->GetNickname(); |
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const bool quiet = currentTunnel ? m_IsQuiet : dest->GetQuiet(); |
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const std::string inhost = issetStr(currentTunnel ? m_InHost : dest->GetInHost()); |
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const std::string outhost = issetStr(currentTunnel ? m_OutHost : dest->GetOutHost()); |
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const std::string inport = issetNum(currentTunnel ? m_InPort : dest->GetInPort()); |
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const std::string outport = issetNum(currentTunnel ? m_OutPort : dest->GetOutPort()); |
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const bool keys = destExists(dest); // key must exist when destination is created |
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const bool starting = destExists(dest) && !destReady(dest); |
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const bool running = destExists(dest) && destReady(dest); |
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const bool stopping = false; |
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// build line |
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std::stringstream ss; |
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ss << "DATA " |
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<< "NICKNAME: " << nickname << " " << "STARTING: " << bool_str(starting) << " " |
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<< "RUNNING: " << bool_str(running) << " " << "STOPPING: " << bool_str(stopping) << " " |
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<< "KEYS: " << bool_str(keys) << " " << "QUIET: " << bool_str(quiet) << " " |
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<< "INPORT: " << inport << " " << "INHOST: " << inhost << " " |
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<< "OUTPORT: " << outport << " " << "OUTHOST: " << outhost; |
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out = ss.str(); |
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} |
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void BOBCommandSession::ZapCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: zap"); |
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Terminate (); |
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} |
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void BOBCommandSession::QuitCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: quit"); |
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m_IsOpen = false; |
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SendReplyOK ("Bye!"); |
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} |
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void BOBCommandSession::StartCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: start ", m_Nickname); |
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if (m_IsActive) |
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{ |
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SendReplyError ("tunnel is active"); |
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return; |
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} |
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if (!m_Keys.GetPublic ()) // keys are set ? |
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{ |
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SendReplyError("Keys must be set."); |
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return; |
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} |
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if (m_InPort == 0 |
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&& m_OutHost.empty() && m_OutPort == 0) |
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{ |
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SendReplyError("(inhost):inport or outhost:outport must be set."); |
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return; |
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} |
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if(!m_InHost.empty()) |
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{ |
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// TODO: FIXME: temporary validation, until hostname support is added |
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boost::system::error_code ec; |
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boost::asio::ip::address::from_string(m_InHost, ec); |
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if (ec) |
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{ |
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SendReplyError("inhost must be a valid IPv4 address."); |
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return; |
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} |
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} |
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if(!m_OutHost.empty()) |
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{ |
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// TODO: FIXME: temporary validation, until hostname support is added |
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boost::system::error_code ec; |
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boost::asio::ip::address::from_string(m_OutHost, ec); |
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if (ec) |
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{ |
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SendReplyError("outhost must be a IPv4 address."); |
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return; |
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} |
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} |
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if (!m_CurrentDestination) |
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{ |
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m_CurrentDestination = new BOBDestination (i2p::client::context.CreateNewLocalDestination (m_Keys, true, &m_Options), // deleted in clear command |
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m_Nickname, m_InHost, m_OutHost, m_InPort, m_OutPort, m_IsQuiet); |
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m_Owner.AddDestination (m_Nickname, m_CurrentDestination); |
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} |
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if (m_InPort) |
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m_CurrentDestination->CreateInboundTunnel (m_InPort, m_InHost); |
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if (m_OutPort && !m_OutHost.empty ()) |
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m_CurrentDestination->CreateOutboundTunnel (m_OutHost, m_OutPort, m_IsQuiet); |
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m_CurrentDestination->Start (); |
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SendReplyOK ("Tunnel starting"); |
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m_IsActive = true; |
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} |
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void BOBCommandSession::StopCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: stop ", m_Nickname); |
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if (!m_IsActive) |
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{ |
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SendReplyError ("tunnel is inactive"); |
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return; |
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} |
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auto dest = m_Owner.FindDestination (m_Nickname); |
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if (dest) |
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{ |
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dest->StopTunnels (); |
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SendReplyOK ("Tunnel stopping"); |
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} |
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else |
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SendReplyError ("tunnel not found"); |
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m_IsActive = false; |
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} |
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void BOBCommandSession::SetNickCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: setnick ", operand); |
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m_Nickname = operand; |
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std::string msg ("Nickname set to "); |
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msg += m_Nickname; |
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SendReplyOK (msg.c_str ()); |
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} |
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void BOBCommandSession::GetNickCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: getnick ", operand); |
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m_CurrentDestination = m_Owner.FindDestination (operand); |
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if (m_CurrentDestination) |
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{ |
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m_Keys = m_CurrentDestination->GetKeys (); |
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m_Nickname = operand; |
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} |
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if (m_Nickname == operand) |
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{ |
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std::string msg ("Nickname set to "); |
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msg += m_Nickname; |
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SendReplyOK (msg.c_str ()); |
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} |
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else |
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SendReplyError ("no nickname has been set"); |
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} |
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void BOBCommandSession::NewkeysCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: newkeys"); |
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i2p::data::SigningKeyType signatureType = i2p::data::SIGNING_KEY_TYPE_DSA_SHA1; |
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i2p::data::CryptoKeyType cryptoType = i2p::data::CRYPTO_KEY_TYPE_ELGAMAL; |
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if (*operand) |
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{ |
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try |
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{ |
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char * operand1 = (char *)strchr (operand, ' '); |
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if (operand1) |
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{ |
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*operand1 = 0; operand1++; |
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cryptoType = std::stoi(operand1); |
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} |
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signatureType = std::stoi(operand); |
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} |
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catch (std::invalid_argument& ex) |
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{ |
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LogPrint (eLogWarning, "BOB: newkeys ", ex.what ()); |
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} |
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} |
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m_Keys = i2p::data::PrivateKeys::CreateRandomKeys (signatureType, cryptoType); |
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SendReplyOK (m_Keys.GetPublic ()->ToBase64 ().c_str ()); |
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} |
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void BOBCommandSession::SetkeysCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: setkeys ", operand); |
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if (m_Keys.FromBase64 (operand)) |
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SendReplyOK (m_Keys.GetPublic ()->ToBase64 ().c_str ()); |
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else |
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SendReplyError ("invalid keys"); |
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} |
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void BOBCommandSession::GetkeysCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: getkeys"); |
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if (m_Keys.GetPublic ()) // keys are set ? |
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SendReplyOK (m_Keys.ToBase64 ().c_str ()); |
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else |
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SendReplyError ("keys are not set"); |
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} |
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|
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void BOBCommandSession::GetdestCommandHandler (const char * operand, size_t len) |
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{ |
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LogPrint (eLogDebug, "BOB: getdest"); |
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if (m_Keys.GetPublic ()) // keys are set ? |
|
SendReplyOK (m_Keys.GetPublic ()->ToBase64 ().c_str ()); |
|
else |
|
SendReplyError ("keys are not set"); |
|
} |
|
|
|
void BOBCommandSession::OuthostCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: outhost ", operand); |
|
m_OutHost = operand; |
|
SendReplyOK ("outhost set"); |
|
} |
|
|
|
void BOBCommandSession::OutportCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: outport ", operand); |
|
m_OutPort = std::stoi(operand); |
|
if (m_OutPort >= 0) |
|
SendReplyOK ("outbound port set"); |
|
else |
|
SendReplyError ("port out of range"); |
|
} |
|
|
|
void BOBCommandSession::InhostCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: inhost ", operand); |
|
m_InHost = operand; |
|
SendReplyOK ("inhost set"); |
|
} |
|
|
|
void BOBCommandSession::InportCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: inport ", operand); |
|
m_InPort = std::stoi(operand); |
|
if (m_InPort >= 0) |
|
SendReplyOK ("inbound port set"); |
|
else |
|
SendReplyError ("port out of range"); |
|
} |
|
|
|
void BOBCommandSession::QuietCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: quiet"); |
|
if (m_Nickname.length () > 0) |
|
{ |
|
if (!m_IsActive) |
|
{ |
|
m_IsQuiet = true; |
|
SendReplyOK ("Quiet set"); |
|
} |
|
else |
|
SendReplyError ("tunnel is active"); |
|
} |
|
else |
|
SendReplyError ("no nickname has been set"); |
|
} |
|
|
|
void BOBCommandSession::LookupCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: lookup ", operand); |
|
auto addr = context.GetAddressBook ().GetAddress (operand); |
|
if (!addr) |
|
{ |
|
SendReplyError ("Address Not found"); |
|
return; |
|
} |
|
auto localDestination = m_CurrentDestination ? m_CurrentDestination->GetLocalDestination () : i2p::client::context.GetSharedLocalDestination (); |
|
if (addr->IsIdentHash ()) |
|
{ |
|
// we might have leaseset already |
|
auto leaseSet = localDestination->FindLeaseSet (addr->identHash); |
|
if (leaseSet) |
|
{ |
|
SendReplyOK (leaseSet->GetIdentity ()->ToBase64 ().c_str ()); |
|
return; |
|
} |
|
} |
|
// trying to request |
|
auto s = shared_from_this (); |
|
auto requstCallback = [s](std::shared_ptr<i2p::data::LeaseSet> ls) |
|
{ |
|
if (ls) |
|
s->SendReplyOK (ls->GetIdentity ()->ToBase64 ().c_str ()); |
|
else |
|
s->SendReplyError ("LeaseSet Not found"); |
|
}; |
|
if (addr->IsIdentHash ()) |
|
localDestination->RequestDestination (addr->identHash, requstCallback); |
|
else |
|
localDestination->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey, requstCallback); |
|
} |
|
|
|
void BOBCommandSession::LookupLocalCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: lookup local ", operand); |
|
auto addr = context.GetAddressBook ().GetAddress (operand); |
|
if (!addr) |
|
{ |
|
SendReplyError ("Address Not found"); |
|
return; |
|
} |
|
auto ls = i2p::data::netdb.FindLeaseSet (addr->identHash); |
|
if (ls) |
|
SendReplyOK (ls->GetIdentity ()->ToBase64 ().c_str ()); |
|
else |
|
SendReplyError ("Local LeaseSet Not found"); |
|
} |
|
|
|
void BOBCommandSession::ClearCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: clear"); |
|
m_Owner.DeleteDestination (m_Nickname); |
|
m_Nickname = ""; |
|
SendReplyOK ("cleared"); |
|
} |
|
|
|
void BOBCommandSession::ListCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: list"); |
|
std::string statusLine; |
|
bool sentCurrent = false; |
|
const auto& destinations = m_Owner.GetDestinations (); |
|
for (const auto& it: destinations) |
|
{ |
|
BuildStatusLine(false, it.second, statusLine); |
|
SendRaw(statusLine.c_str()); |
|
if(m_Nickname.compare(it.second->GetNickname()) == 0) |
|
sentCurrent = true; |
|
} |
|
if(!sentCurrent && !m_Nickname.empty()) |
|
{ |
|
// add the current tunnel to the list. |
|
// this is for the incomplete tunnel which has not been started yet. |
|
BuildStatusLine(true, m_CurrentDestination, statusLine); |
|
SendRaw(statusLine.c_str()); |
|
} |
|
SendReplyOK ("Listing done"); |
|
} |
|
|
|
void BOBCommandSession::OptionCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: option ", operand); |
|
const char * value = strchr (operand, '='); |
|
if (value) |
|
{ |
|
std::string msg ("option "); |
|
*(const_cast<char *>(value)) = 0; |
|
m_Options[operand] = value + 1; |
|
msg += operand; |
|
*(const_cast<char *>(value)) = '='; |
|
msg += " set to "; |
|
msg += value; |
|
SendReplyOK (msg.c_str ()); |
|
} |
|
else |
|
SendReplyError ("malformed"); |
|
} |
|
|
|
void BOBCommandSession::StatusCommandHandler (const char * operand, size_t len) |
|
{ |
|
LogPrint (eLogDebug, "BOB: status ", operand); |
|
const std::string name = operand; |
|
std::string statusLine; |
|
|
|
// always prefer destination |
|
auto ptr = m_Owner.FindDestination(name); |
|
if(ptr != nullptr) |
|
{ |
|
// tunnel destination exists |
|
BuildStatusLine(false, ptr, statusLine); |
|
SendReplyOK(statusLine.c_str()); |
|
} |
|
else |
|
{ |
|
if(m_Nickname == name && !name.empty()) |
|
{ |
|
// tunnel is incomplete / has not been started yet |
|
BuildStatusLine(true, nullptr, statusLine); |
|
SendReplyOK(statusLine.c_str()); |
|
} |
|
else |
|
{ |
|
SendReplyError("no nickname has been set"); |
|
} |
|
} |
|
} |
|
void BOBCommandSession::HelpCommandHandler (const char * operand, size_t len) |
|
{ |
|
auto helpStrings = m_Owner.GetHelpStrings(); |
|
if(len == 0) |
|
{ |
|
std::stringstream ss; |
|
ss << "COMMANDS:"; |
|
for (auto const& x : helpStrings) |
|
{ |
|
ss << " " << x.first; |
|
} |
|
const std::string &str = ss.str(); |
|
SendReplyOK(str.c_str()); |
|
} |
|
else |
|
{ |
|
auto it = helpStrings.find(operand); |
|
if (it != helpStrings.end ()) |
|
{ |
|
SendReplyOK(it->second.c_str()); |
|
return; |
|
} |
|
SendReplyError("No such command"); |
|
} |
|
} |
|
|
|
BOBCommandChannel::BOBCommandChannel (const std::string& address, int port): |
|
RunnableService ("BOB"), |
|
m_Acceptor (GetIOService (), boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(address), port)) |
|
{ |
|
// command -> handler |
|
m_CommandHandlers[BOB_COMMAND_ZAP] = &BOBCommandSession::ZapCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_QUIT] = &BOBCommandSession::QuitCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_START] = &BOBCommandSession::StartCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_STOP] = &BOBCommandSession::StopCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_SETNICK] = &BOBCommandSession::SetNickCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_GETNICK] = &BOBCommandSession::GetNickCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_NEWKEYS] = &BOBCommandSession::NewkeysCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_GETKEYS] = &BOBCommandSession::GetkeysCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_SETKEYS] = &BOBCommandSession::SetkeysCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_GETDEST] = &BOBCommandSession::GetdestCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_OUTHOST] = &BOBCommandSession::OuthostCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_OUTPORT] = &BOBCommandSession::OutportCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_INHOST] = &BOBCommandSession::InhostCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_INPORT] = &BOBCommandSession::InportCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_QUIET] = &BOBCommandSession::QuietCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_LOOKUP] = &BOBCommandSession::LookupCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_LOOKUP_LOCAL] = &BOBCommandSession::LookupLocalCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_CLEAR] = &BOBCommandSession::ClearCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_LIST] = &BOBCommandSession::ListCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_OPTION] = &BOBCommandSession::OptionCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_STATUS] = &BOBCommandSession::StatusCommandHandler; |
|
m_CommandHandlers[BOB_COMMAND_HELP] = &BOBCommandSession::HelpCommandHandler; |
|
// command -> help string |
|
m_HelpStrings[BOB_COMMAND_ZAP] = BOB_HELP_ZAP; |
|
m_HelpStrings[BOB_COMMAND_QUIT] = BOB_HELP_QUIT; |
|
m_HelpStrings[BOB_COMMAND_START] = BOB_HELP_START; |
|
m_HelpStrings[BOB_COMMAND_STOP] = BOB_HELP_STOP; |
|
m_HelpStrings[BOB_COMMAND_SETNICK] = BOB_HELP_SETNICK; |
|
m_HelpStrings[BOB_COMMAND_GETNICK] = BOB_HELP_GETNICK; |
|
m_HelpStrings[BOB_COMMAND_NEWKEYS] = BOB_HELP_NEWKEYS; |
|
m_HelpStrings[BOB_COMMAND_GETKEYS] = BOB_HELP_GETKEYS; |
|
m_HelpStrings[BOB_COMMAND_SETKEYS] = BOB_HELP_SETKEYS; |
|
m_HelpStrings[BOB_COMMAND_GETDEST] = BOB_HELP_GETDEST; |
|
m_HelpStrings[BOB_COMMAND_OUTHOST] = BOB_HELP_OUTHOST; |
|
m_HelpStrings[BOB_COMMAND_OUTPORT] = BOB_HELP_OUTPORT; |
|
m_HelpStrings[BOB_COMMAND_INHOST] = BOB_HELP_INHOST; |
|
m_HelpStrings[BOB_COMMAND_INPORT] = BOB_HELP_INPORT; |
|
m_HelpStrings[BOB_COMMAND_QUIET] = BOB_HELP_QUIET; |
|
m_HelpStrings[BOB_COMMAND_LOOKUP] = BOB_HELP_LOOKUP; |
|
m_HelpStrings[BOB_COMMAND_CLEAR] = BOB_HELP_CLEAR; |
|
m_HelpStrings[BOB_COMMAND_LIST] = BOB_HELP_LIST; |
|
m_HelpStrings[BOB_COMMAND_OPTION] = BOB_HELP_OPTION; |
|
m_HelpStrings[BOB_COMMAND_STATUS] = BOB_HELP_STATUS; |
|
m_HelpStrings[BOB_COMMAND_HELP] = BOB_HELP_HELP; |
|
} |
|
|
|
BOBCommandChannel::~BOBCommandChannel () |
|
{ |
|
if (IsRunning ()) |
|
Stop (); |
|
for (const auto& it: m_Destinations) |
|
delete it.second; |
|
} |
|
|
|
void BOBCommandChannel::Start () |
|
{ |
|
Accept (); |
|
StartIOService (); |
|
} |
|
|
|
void BOBCommandChannel::Stop () |
|
{ |
|
for (auto& it: m_Destinations) |
|
it.second->Stop (); |
|
m_Acceptor.cancel (); |
|
StopIOService (); |
|
} |
|
|
|
void BOBCommandChannel::AddDestination (const std::string& name, BOBDestination * dest) |
|
{ |
|
m_Destinations[name] = dest; |
|
} |
|
|
|
void BOBCommandChannel::DeleteDestination (const std::string& name) |
|
{ |
|
auto it = m_Destinations.find (name); |
|
if (it != m_Destinations.end ()) |
|
{ |
|
it->second->Stop (); |
|
delete it->second; |
|
m_Destinations.erase (it); |
|
} |
|
} |
|
|
|
BOBDestination * BOBCommandChannel::FindDestination (const std::string& name) |
|
{ |
|
auto it = m_Destinations.find (name); |
|
if (it != m_Destinations.end ()) |
|
return it->second; |
|
return nullptr; |
|
} |
|
|
|
void BOBCommandChannel::Accept () |
|
{ |
|
auto newSession = std::make_shared<BOBCommandSession> (*this); |
|
m_Acceptor.async_accept (newSession->GetSocket (), std::bind (&BOBCommandChannel::HandleAccept, this, |
|
std::placeholders::_1, newSession)); |
|
} |
|
|
|
void BOBCommandChannel::HandleAccept(const boost::system::error_code& ecode, std::shared_ptr<BOBCommandSession> session) |
|
{ |
|
if (ecode != boost::asio::error::operation_aborted) |
|
Accept (); |
|
|
|
if (!ecode) |
|
{ |
|
LogPrint (eLogInfo, "BOB: New command connection from ", session->GetSocket ().remote_endpoint ()); |
|
session->SendVersion (); |
|
} |
|
else |
|
LogPrint (eLogError, "BOB: accept error: ", ecode.message ()); |
|
} |
|
} |
|
}
|
|
|