PurpleI2P
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i2pd
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* add websocks 

* enable socks, websocks and httpproxy as client tunnels

* remove old websocks config
pull/771/head
Jeff Becker 8 years ago
parent
43c1a87c48
commit
c5d3c0c6f8
8 changed files with 427 additions and 360 deletions
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  1. 46
      ClientContext.cpp
  2. 5
      ClientContext.h
  3. 7
      Config.cpp
  4. 11
      Daemon.cpp
  5. 3
      I2PService.h
  6. 677
      WebSocks.cpp
  7. 31
      WebSocks.h
  8. 3
      android/jni/Android.mk

46
ClientContext.cpp
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@ -8,6 +8,8 @@ @@ -8,6 +8,8 @@
#include "Identity.h"
#include "util.h"
#include "ClientContext.h"
#include "SOCKS.h"
#include "WebSocks.h"
namespace i2p
{
@ -424,7 +426,11 @@ namespace client @@ -424,7 +426,11 @@ namespace client
try
{
std::string type = section.second.get<std::string> (I2P_TUNNELS_SECTION_TYPE);
if (type == I2P_TUNNELS_SECTION_TYPE_CLIENT || type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT)
if (type == I2P_TUNNELS_SECTION_TYPE_CLIENT
|| type == I2P_TUNNELS_SECTION_TYPE_SOCKS
|| type == I2P_TUNNELS_SECTION_TYPE_WEBSOCKS
|| type == I2P_TUNNELS_SECTION_TYPE_HTTPPROXY
|| type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT)
{
// mandatory params
std::string dest = section.second.get<std::string> (I2P_CLIENT_TUNNEL_DESTINATION);
@ -466,19 +472,45 @@ namespace client @@ -466,19 +472,45 @@ namespace client
LogPrint(eLogError, "Clients: I2P Client forward for endpoint ", end, " already exists");
} else {
// tcp client
auto clientTunnel = new I2PClientTunnel (name, dest, address, port, localDestination, destinationPort);
if (m_ClientTunnels.insert (std::make_pair (clientTunnel->GetAcceptor ().local_endpoint (),
std::unique_ptr<I2PClientTunnel>(clientTunnel))).second)
boost::asio::ip::tcp::endpoint clientEndpoint;
I2PService * clientTunnel = nullptr;
if (type == I2P_TUNNELS_SECTION_TYPE_SOCKS)
{
// socks proxy
clientTunnel = new i2p::proxy::SOCKSProxy(address, port, "", destinationPort, localDestination);
clientEndpoint = ((i2p::proxy::SOCKSProxy*)clientTunnel)->GetAcceptor().local_endpoint();
}
else if (type == I2P_TUNNELS_SECTION_TYPE_HTTPPROXY)
{
// http proxy
clientTunnel = new i2p::proxy::HTTPProxy(address, port, localDestination);
clientEndpoint = ((i2p::proxy::HTTPProxy*)clientTunnel)->GetAcceptor().local_endpoint();
}
else if (type == I2P_TUNNELS_SECTION_TYPE_WEBSOCKS)
{
// websocks proxy
clientTunnel = new WebSocks(address, port, localDestination);;
clientEndpoint = ((WebSocks*)clientTunnel)->GetLocalEndpoint();
}
else
{
// tcp client
clientTunnel = new I2PClientTunnel (name, dest, address, port, localDestination, destinationPort);
clientEndpoint = ((I2PClientTunnel*)clientTunnel)->GetAcceptor().local_endpoint();
}
if (m_ClientTunnels.insert (std::make_pair (clientEndpoint, std::unique_ptr<I2PService>(clientTunnel))).second)
{
clientTunnel->Start ();
numClientTunnels++;
}
else
LogPrint (eLogError, "Clients: I2P client tunnel for endpoint ", clientTunnel->GetAcceptor ().local_endpoint (), " already exists");
LogPrint (eLogError, "Clients: I2P client tunnel for endpoint ", clientEndpoint, "already exists");
}
}
else if (type == I2P_TUNNELS_SECTION_TYPE_SERVER || type == I2P_TUNNELS_SECTION_TYPE_HTTP || type == I2P_TUNNELS_SECTION_TYPE_IRC || type == I2P_TUNNELS_SECTION_TYPE_UDPSERVER)
else if (type == I2P_TUNNELS_SECTION_TYPE_SERVER
|| type == I2P_TUNNELS_SECTION_TYPE_HTTP
|| type == I2P_TUNNELS_SECTION_TYPE_IRC
|| type == I2P_TUNNELS_SECTION_TYPE_UDPSERVER)
{
// mandatory params
std::string host = section.second.get<std::string> (I2P_SERVER_TUNNEL_HOST);

5
ClientContext.h
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@ -26,6 +26,9 @@ namespace client @@ -26,6 +26,9 @@ namespace client
const char I2P_TUNNELS_SECTION_TYPE_IRC[] = "irc";
const char I2P_TUNNELS_SECTION_TYPE_UDPCLIENT[] = "udpclient";
const char I2P_TUNNELS_SECTION_TYPE_UDPSERVER[] = "udpserver";
const char I2P_TUNNELS_SECTION_TYPE_SOCKS[] = "socks";
const char I2P_TUNNELS_SECTION_TYPE_WEBSOCKS[] = "websocks";
const char I2P_TUNNELS_SECTION_TYPE_HTTPPROXY[] = "httpproxy";
const char I2P_CLIENT_TUNNEL_PORT[] = "port";
const char I2P_CLIENT_TUNNEL_ADDRESS[] = "address";
const char I2P_CLIENT_TUNNEL_DESTINATION[] = "destination";
@ -93,7 +96,7 @@ namespace client @@ -93,7 +96,7 @@ namespace client
i2p::proxy::HTTPProxy * m_HttpProxy;
i2p::proxy::SOCKSProxy * m_SocksProxy;
std::map<boost::asio::ip::tcp::endpoint, std::unique_ptr<I2PClientTunnel> > m_ClientTunnels; // local endpoint->tunnel
std::map<boost::asio::ip::tcp::endpoint, std::unique_ptr<I2PService> > m_ClientTunnels; // local endpoint->tunnel
std::map<std::pair<i2p::data::IdentHash, int>, std::unique_ptr<I2PServerTunnel> > m_ServerTunnels; // <destination,port>->tunnel
std::mutex m_ForwardsMutex;

7
Config.cpp
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@ -203,12 +203,6 @@ namespace config { @@ -203,12 +203,6 @@ namespace config {
("websockets.address", value<std::string>()->default_value("127.0.0.1"), "address to bind websocket server on")
("websockets.port", value<uint16_t>()->default_value(7666), "port to bind websocket server on");
options_description websocks("WebSOCKS options");
websocks.add_options()
("websocks.enabled", value<bool>()->default_value(false), "enable WebSOCKS server")
("websocks.address", value<std::string>()->default_value("127.0.0.1"), "address to bind WebSOCKS server on")
("websocks.port", value<uint16_t>()->default_value(7666), "port to bind WebSOCKS server on");
m_OptionsDesc
.add(general)
.add(limits)
@ -225,7 +219,6 @@ namespace config { @@ -225,7 +219,6 @@ namespace config {
.add(addressbook)
.add(trust)
.add(websocket)
.add(websocks)
;
}

11
Daemon.cpp
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@ -27,7 +27,6 @@ @@ -27,7 +27,6 @@
#include "Event.h"
#include "Websocket.h"
#include "WebSocks.h"
namespace i2p
{
@ -44,7 +43,6 @@ namespace i2p @@ -44,7 +43,6 @@ namespace i2p
std::unique_ptr<i2p::transport::UPnP> UPnP;
#ifdef WITH_EVENTS
std::unique_ptr<i2p::event::WebsocketServer> m_WebsocketServer;
std::unique_ptr<i2p::client::WebSocks> m_WebSocksServer;
#endif
};
@ -309,15 +307,6 @@ namespace i2p @@ -309,15 +307,6 @@ namespace i2p
d.m_WebsocketServer->Start();
i2p::event::core.SetListener(d.m_WebsocketServer->ToListener());
}
bool websocks; i2p::config::GetOption("websocks.enabled", websocks);
if (websocks) {
std::string websocksAddr; i2p::config::GetOption("websocks.address", websocksAddr);
uint16_t websocksPort; i2p::config::GetOption("websocks.port", websocksPort);
LogPrint(eLogInfo, "Daemon: starting up WebSOCKS server at ", websocksAddr, ":", websocksPort);
d.m_WebSocksServer = std::unique_ptr<i2p::client::WebSocks>(new i2p::client::WebSocks(websocksAddr, websocksPort));
d.m_WebSocksServer->Start();
}
#endif
return true;
}

3
I2PService.h
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@ -122,9 +122,10 @@ namespace client @@ -122,9 +122,10 @@ namespace client
const boost::asio::ip::tcp::acceptor& GetAcceptor () const { return m_Acceptor; };
virtual const char* GetName() { return "Generic TCP/IP accepting daemon"; }
protected:
virtual std::shared_ptr<I2PServiceHandler> CreateHandler(std::shared_ptr<boost::asio::ip::tcp::socket> socket) = 0;
virtual const char* GetName() { return "Generic TCP/IP accepting daemon"; }
private:
void Accept();
void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr<boost::asio::ip::tcp::socket> socket);

677
WebSocks.cpp
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@ -22,254 +22,273 @@ namespace i2p @@ -22,254 +22,273 @@ namespace i2p
{
namespace client
{
typedef websocketpp::server<websocketpp::config::asio> WebSocksServerImpl;
typedef websocketpp::server<websocketpp::config::asio> WebSocksServerImpl;
typedef std::function<void(std::shared_ptr<i2p::stream::Stream>)> StreamConnectFunc;
typedef std::function<void(std::shared_ptr<i2p::stream::Stream>)> StreamConnectFunc;
struct IWebSocksConn
{
virtual void Close() = 0;
virtual void GotMessage(const websocketpp::connection_hdl & conn, WebSocksServerImpl::message_ptr msg) = 0;
};
struct IWebSocksConn : public I2PServiceHandler
{
IWebSocksConn(I2PService * parent) : I2PServiceHandler(parent) {}
virtual void Close() = 0;
virtual void GotMessage(const websocketpp::connection_hdl & conn, WebSocksServerImpl::message_ptr msg) = 0;
};
typedef std::shared_ptr<IWebSocksConn> WebSocksConn_ptr;
typedef std::shared_ptr<IWebSocksConn> WebSocksConn_ptr;
WebSocksConn_ptr CreateWebSocksConn(const websocketpp::connection_hdl & conn, WebSocksImpl * parent);
WebSocksConn_ptr CreateWebSocksConn(const websocketpp::connection_hdl & conn, WebSocksImpl * parent);
class WebSocksImpl
{
typedef std::mutex mutex_t;
typedef std::unique_lock<mutex_t> lock_t;
typedef std::mutex mutex_t;
typedef std::unique_lock<mutex_t> lock_t;
typedef std::shared_ptr<ClientDestination> Destination_t;
public:
typedef std::shared_ptr<ClientDestination> Destination_t;
public:
typedef WebSocksServerImpl ServerImpl;
typedef ServerImpl::message_ptr MessagePtr;
typedef WebSocksServerImpl ServerImpl;
typedef ServerImpl::message_ptr MessagePtr;
WebSocksImpl(const std::string & addr, int port) :
m_Run(false),
m_Addr(addr),
m_Port(port),
m_Thread(nullptr)
Parent(nullptr),
m_Run(false),
m_Addr(addr),
m_Port(port),
m_Thread(nullptr)
{
m_Server.init_asio();
m_Server.set_open_handler(std::bind(&WebSocksImpl::ConnOpened, this, std::placeholders::_1));
}
void InitializeDestination(WebSocks * parent)
{
Parent = parent;
m_Dest = Parent->GetLocalDestination();
}
ServerImpl::connection_ptr GetConn(const websocketpp::connection_hdl & conn)
{
return m_Server.get_con_from_hdl(conn);
}
void CloseConn(const websocketpp::connection_hdl & conn)
{
auto c = GetConn(conn);
if(c) c->close(websocketpp::close::status::normal, "closed");
}
void CreateStreamTo(const std::string & addr, int port, StreamConnectFunc complete)
{
auto & addressbook = i2p::client::context.GetAddressBook();
i2p::data::IdentHash ident;
if(addressbook.GetIdentHash(addr, ident)) {
// address found
m_Dest->CreateStream(complete, ident, port);
} else {
// not found
complete(nullptr);
}
}
void ConnOpened(websocketpp::connection_hdl conn)
{
auto ptr = CreateWebSocksConn(conn, this);
Parent->AddHandler(ptr);
m_Conns.push_back(ptr);
}
void Start()
{
m_Server.init_asio();
m_Server.set_open_handler(std::bind(&WebSocksImpl::ConnOpened, this, std::placeholders::_1));
i2p::data::PrivateKeys k = i2p::data::PrivateKeys::CreateRandomKeys(i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519);
m_Dest = std::make_shared<ClientDestination>(k, false);
if(m_Run) return; // already started
m_Server.listen(boost::asio::ip::address::from_string(m_Addr), m_Port);
m_Server.start_accept();
m_Run = true;
m_Thread = new std::thread([&] (){
while(m_Run) {
try {
m_Server.run();
} catch( std::exception & ex) {
LogPrint(eLogError, "Websocks runtime exception: ", ex.what());
}
}
});
m_Dest->Start();
}
ServerImpl::connection_ptr GetConn(const websocketpp::connection_hdl & conn)
{
return m_Server.get_con_from_hdl(conn);
}
void CloseConn(const websocketpp::connection_hdl & conn)
{
auto c = GetConn(conn);
if(c) c->close(websocketpp::close::status::normal, "closed");
}
void CreateStreamTo(const std::string & addr, int port, StreamConnectFunc complete)
{
auto & addressbook = i2p::client::context.GetAddressBook();
i2p::data::IdentHash ident;
if(addressbook.GetIdentHash(addr, ident)) {
// address found
m_Dest->CreateStream(complete, ident, port);
} else {
// not found
complete(nullptr);
}
}
void ConnOpened(websocketpp::connection_hdl conn)
{
m_Conns.push_back(CreateWebSocksConn(conn, this));
}
void Start()
{
if(m_Run) return; // already started
m_Server.listen(boost::asio::ip::address::from_string(m_Addr), m_Port);
m_Server.start_accept();
m_Run = true;
m_Thread = new std::thread([&] (){
while(m_Run) {
try {
m_Server.run();
} catch( std::exception & ex) {
LogPrint(eLogError, "Websocks runtime exception: ", ex.what());
}
}
});
m_Dest->Start();
}
void Stop()
{
for(const auto & conn : m_Conns)
conn->Close();
m_Dest->Stop();
m_Run = false;
m_Server.stop();
if(m_Thread) {
m_Thread->join();
delete m_Thread;
}
m_Thread = nullptr;
}
private:
std::vector<WebSocksConn_ptr> m_Conns;
bool m_Run;
ServerImpl m_Server;
std::string m_Addr;
int m_Port;
std::thread * m_Thread;
Destination_t m_Dest;
void Stop()
{
for(const auto & conn : m_Conns)
conn->Close();
m_Dest->Stop();
m_Run = false;
m_Server.stop();
if(m_Thread) {
m_Thread->join();
delete m_Thread;
}
m_Thread = nullptr;
}
boost::asio::ip::tcp::endpoint GetLocalEndpoint()
{
return boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(m_Addr), m_Port);
}
WebSocks * Parent;
private:
std::vector<WebSocksConn_ptr> m_Conns;
bool m_Run;
ServerImpl m_Server;
std::string m_Addr;
int m_Port;
std::thread * m_Thread;
Destination_t m_Dest;
};
struct WebSocksConn : public IWebSocksConn
{
enum ConnState
{
eWSCInitial,
eWSCTryConnect,
eWSCFailConnect,
eWSCOkayConnect,
eWSCClose,
eWSCEnd
};
typedef WebSocksServerImpl ServerImpl;
typedef ServerImpl::message_ptr Message_t;
typedef websocketpp::connection_hdl ServerConn;
typedef std::shared_ptr<ClientDestination> Destination_t;
typedef std::shared_ptr<i2p::stream::StreamingDestination> StreamDest_t;
typedef std::shared_ptr<i2p::stream::Stream> Stream_t;
ServerConn m_Conn;
Stream_t m_Stream;
ConnState m_State;
WebSocksImpl * m_Parent;
std::string m_RemoteAddr;
int m_RemotePort;
uint8_t m_RecvBuf[2048];
WebSocksConn(const ServerConn & conn, WebSocksImpl * parent) :
m_Conn(conn),
m_Stream(nullptr),
m_State(eWSCInitial),
m_Parent(parent)
{
}
~WebSocksConn()
{
Close();
}
void EnterState(ConnState state)
{
LogPrint(eLogDebug, "websocks: state ", m_State, " -> ", state);
switch(m_State)
{
case eWSCInitial:
if (state == eWSCClose) {
m_State = eWSCClose;
// connection was opened but never used
LogPrint(eLogInfo, "websocks: connection closed but never used");
Close();
return;
} else if (state == eWSCTryConnect) {
// we will try to connect
m_State = eWSCTryConnect;
m_Parent->CreateStreamTo(m_RemoteAddr, m_RemotePort, std::bind(&WebSocksConn::ConnectResult, this, std::placeholders::_1));
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
return;
case eWSCTryConnect:
if(state == eWSCOkayConnect) {
// we connected okay
LogPrint(eLogDebug, "websocks: connected to ", m_RemoteAddr, ":", m_RemotePort);
SendResponse("");
m_State = eWSCOkayConnect;
} else if(state == eWSCFailConnect) {
// we did not connect okay
LogPrint(eLogDebug, "websocks: failed to connect to ", m_RemoteAddr, ":", m_RemotePort);
SendResponse("failed to connect");
m_State = eWSCFailConnect;
EnterState(eWSCInitial);
} else if(state == eWSCClose) {
// premature close
LogPrint(eLogWarning, "websocks: websocket connection closed prematurely");
m_State = eWSCClose;
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
return;
case eWSCFailConnect:
if (state == eWSCInitial) {
// reset to initial state so we can try connecting again
m_RemoteAddr = "";
m_RemotePort = 0;
LogPrint(eLogDebug, "websocks: reset websocket conn to initial state");
m_State = eWSCInitial;
} else if (state == eWSCClose) {
// we are going to close the connection
m_State = eWSCClose;
Close();
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
return;
case eWSCOkayConnect:
if(state == eWSCClose) {
// graceful close
m_State = eWSCClose;
Close();
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
case eWSCClose:
if(state == eWSCEnd) {
LogPrint(eLogDebug, "websocks: socket ended");
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
return;
default:
LogPrint(eLogError, "websocks: bad state ", m_State);
}
}
void StartForwarding()
{
LogPrint(eLogDebug, "websocks: begin forwarding data");
struct WebSocksConn : public IWebSocksConn , public std::enable_shared_from_this<WebSocksConn>
{
enum ConnState
{
eWSCInitial,
eWSCTryConnect,
eWSCFailConnect,
eWSCOkayConnect,
eWSCClose,
eWSCEnd
};
typedef WebSocksServerImpl ServerImpl;
typedef ServerImpl::message_ptr Message_t;
typedef websocketpp::connection_hdl ServerConn;
typedef std::shared_ptr<ClientDestination> Destination_t;
typedef std::shared_ptr<i2p::stream::StreamingDestination> StreamDest_t;
typedef std::shared_ptr<i2p::stream::Stream> Stream_t;
ServerConn m_Conn;
Stream_t m_Stream;
ConnState m_State;
WebSocksImpl * m_Parent;
std::string m_RemoteAddr;
int m_RemotePort;
uint8_t m_RecvBuf[2048];
WebSocksConn(const ServerConn & conn, WebSocksImpl * parent) :
IWebSocksConn(parent->Parent),
m_Conn(conn),
m_Stream(nullptr),
m_State(eWSCInitial),
m_Parent(parent)
{
}
~WebSocksConn()
{
Close();
}
void EnterState(ConnState state)
{
LogPrint(eLogDebug, "websocks: state ", m_State, " -> ", state);
switch(m_State)
{
case eWSCInitial:
if (state == eWSCClose) {
m_State = eWSCClose;
// connection was opened but never used
LogPrint(eLogInfo, "websocks: connection closed but never used");
Close();
return;
} else if (state == eWSCTryConnect) {
// we will try to connect
m_State = eWSCTryConnect;
m_Parent->CreateStreamTo(m_RemoteAddr, m_RemotePort, std::bind(&WebSocksConn::ConnectResult, this, std::placeholders::_1));
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
return;
case eWSCTryConnect:
if(state == eWSCOkayConnect) {
// we connected okay
LogPrint(eLogDebug, "websocks: connected to ", m_RemoteAddr, ":", m_RemotePort);
SendResponse("");
m_State = eWSCOkayConnect;
} else if(state == eWSCFailConnect) {
// we did not connect okay
LogPrint(eLogDebug, "websocks: failed to connect to ", m_RemoteAddr, ":", m_RemotePort);
SendResponse("failed to connect");
m_State = eWSCFailConnect;
EnterState(eWSCInitial);
} else if(state == eWSCClose) {
// premature close
LogPrint(eLogWarning, "websocks: websocket connection closed prematurely");
m_State = eWSCClose;
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
return;
case eWSCFailConnect:
if (state == eWSCInitial) {
// reset to initial state so we can try connecting again
m_RemoteAddr = "";
m_RemotePort = 0;
LogPrint(eLogDebug, "websocks: reset websocket conn to initial state");
m_State = eWSCInitial;
} else if (state == eWSCClose) {
// we are going to close the connection
m_State = eWSCClose;
Close();
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
return;
case eWSCOkayConnect:
if(state == eWSCClose) {
// graceful close
m_State = eWSCClose;
Close();
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
case eWSCClose:
if(state == eWSCEnd) {
LogPrint(eLogDebug, "websocks: socket ended");
Kill();
auto me = shared_from_this();
Done(me);
} else {
LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state);
}
return;
default:
LogPrint(eLogError, "websocks: bad state ", m_State);
}
}
void StartForwarding()
{
LogPrint(eLogDebug, "websocks: begin forwarding data");
uint8_t b[1];
m_Stream->Send(b, 0);
AsyncRecv();
}
void HandleAsyncRecv(const boost::system::error_code &ec, std::size_t n)
{
if(ec) {
// error
LogPrint(eLogWarning, "websocks: connection error ", ec.message());
EnterState(eWSCClose);
} else {
// forward data
LogPrint(eLogDebug, "websocks recv ", n);
AsyncRecv();
}
void HandleAsyncRecv(const boost::system::error_code &ec, std::size_t n)
{
if(ec) {
// error
LogPrint(eLogWarning, "websocks: connection error ", ec.message());
EnterState(eWSCClose);
} else {
// forward data
LogPrint(eLogDebug, "websocks recv ", n);
std::string str((char*)m_RecvBuf, n);
auto conn = m_Parent->GetConn(m_Conn);
if(!conn) {
if(!conn) {
LogPrint(eLogWarning, "websocks: connection is gone");
EnterState(eWSCClose);
return;
@ -277,98 +296,98 @@ namespace client @@ -277,98 +296,98 @@ namespace client
conn->send(str);
AsyncRecv();
}
}
void AsyncRecv()
{
m_Stream->AsyncReceive(
boost::asio::buffer(m_RecvBuf, sizeof(m_RecvBuf)),
std::bind(&WebSocksConn::HandleAsyncRecv, this, std::placeholders::_1, std::placeholders::_2), 60);
}
/** @brief send error message or empty string for success */
void SendResponse(const std::string & errormsg)
{
boost::property_tree::ptree resp;
if(errormsg.size()) {
resp.put("error", errormsg);
resp.put("success", 0);
} else {
resp.put("success", 1);
}
std::ostringstream ss;
write_json(ss, resp);
auto conn = m_Parent->GetConn(m_Conn);
if(conn) conn->send(ss.str());
}
void ConnectResult(Stream_t stream)
{
m_Stream = stream;
if(m_State == eWSCClose) {
// premature close of websocket
Close();
return;
}
if(m_Stream) {
// connect good
EnterState(eWSCOkayConnect);
}
}
void AsyncRecv()
{
m_Stream->AsyncReceive(
boost::asio::buffer(m_RecvBuf, sizeof(m_RecvBuf)),
std::bind(&WebSocksConn::HandleAsyncRecv, this, std::placeholders::_1, std::placeholders::_2), 60);
}
/** @brief send error message or empty string for success */
void SendResponse(const std::string & errormsg)
{
boost::property_tree::ptree resp;
if(errormsg.size()) {
resp.put("error", errormsg);
resp.put("success", 0);
} else {
resp.put("success", 1);
}
std::ostringstream ss;
write_json(ss, resp);
auto conn = m_Parent->GetConn(m_Conn);
if(conn) conn->send(ss.str());
}
void ConnectResult(Stream_t stream)
{
m_Stream = stream;
if(m_State == eWSCClose) {
// premature close of websocket
Close();
return;
}
if(m_Stream) {
// connect good
EnterState(eWSCOkayConnect);
StartForwarding();
} else {
// connect failed
EnterState(eWSCFailConnect);
}
}
virtual void GotMessage(const websocketpp::connection_hdl & conn, WebSocksServerImpl::message_ptr msg)
{
(void) conn;
std::string payload = msg->get_payload();
if(m_State == eWSCOkayConnect)
{
// forward to server
LogPrint(eLogDebug, "websocks: forward ", payload.size());
m_Stream->Send((uint8_t*)payload.c_str(), payload.size());
} else if (m_State == eWSCInitial) {
// recv connect request
auto itr = payload.find(":");
if(itr == std::string::npos) {
// no port
m_RemotePort = 0;
m_RemoteAddr = payload;
} else {
// includes port
m_RemotePort = std::stoi(payload.substr(itr+1));
m_RemoteAddr = payload.substr(0, itr);
}
EnterState(eWSCTryConnect);
} else {
// wtf?
LogPrint(eLogWarning, "websocks: got message in invalid state ", m_State);
}
}
virtual void Close()
{
if(m_State == eWSCClose) {
LogPrint(eLogDebug, "websocks: closing connection");
if(m_Stream) m_Stream->Close();
m_Parent->CloseConn(m_Conn);
EnterState(eWSCEnd);
} else {
EnterState(eWSCClose);
}
}
};
WebSocksConn_ptr CreateWebSocksConn(const websocketpp::connection_hdl & conn, WebSocksImpl * parent)
{
auto ptr = std::make_shared<WebSocksConn>(conn, parent);
auto c = parent->GetConn(conn);
c->set_message_handler(std::bind(&WebSocksConn::GotMessage, ptr.get(), std::placeholders::_1, std::placeholders::_2));
return ptr;
}
} else {
// connect failed
EnterState(eWSCFailConnect);
}
}
virtual void GotMessage(const websocketpp::connection_hdl & conn, WebSocksServerImpl::message_ptr msg)
{
(void) conn;
std::string payload = msg->get_payload();
if(m_State == eWSCOkayConnect)
{
// forward to server
LogPrint(eLogDebug, "websocks: forward ", payload.size());
m_Stream->Send((uint8_t*)payload.c_str(), payload.size());
} else if (m_State == eWSCInitial) {
// recv connect request
auto itr = payload.find(":");
if(itr == std::string::npos) {
// no port
m_RemotePort = 0;
m_RemoteAddr = payload;
} else {
// includes port
m_RemotePort = std::stoi(payload.substr(itr+1));
m_RemoteAddr = payload.substr(0, itr);
}
EnterState(eWSCTryConnect);
} else {
// wtf?
LogPrint(eLogWarning, "websocks: got message in invalid state ", m_State);
}
}
virtual void Close()
{
if(m_State == eWSCClose) {
LogPrint(eLogDebug, "websocks: closing connection");
if(m_Stream) m_Stream->Close();
m_Parent->CloseConn(m_Conn);
EnterState(eWSCEnd);
} else {
EnterState(eWSCClose);
}
}
};
WebSocksConn_ptr CreateWebSocksConn(const websocketpp::connection_hdl & conn, WebSocksImpl * parent)
{
auto ptr = std::make_shared<WebSocksConn>(conn, parent);
auto c = parent->GetConn(conn);
c->set_message_handler(std::bind(&WebSocksConn::GotMessage, ptr.get(), std::placeholders::_1, std::placeholders::_2));
return ptr;
}
}
}
@ -383,7 +402,7 @@ namespace client @@ -383,7 +402,7 @@ namespace client
class WebSocksImpl
{
public:
WebSocksImpl(const std::string & addr, int port)
WebSocksImpl(const std::string & addr, int port) : m_Addr(addr), m_Port(port)
{
}
@ -398,9 +417,20 @@ namespace client @@ -398,9 +417,20 @@ namespace client
void Stop()
{
}
void InitializeDestination(WebSocks * parent)
{
}
boost::asio::ip::tcp::endpoint GetLocalEndpoint()
{
return boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(m_Addr), m_Port);
}
std::string m_Addr;
int m_Port;
};
}
}
@ -410,17 +440,28 @@ namespace i2p @@ -410,17 +440,28 @@ namespace i2p
{
namespace client
{
WebSocks::WebSocks(const std::string & addr, int port) : m_Impl(new WebSocksImpl(addr, port)) {}
WebSocks::WebSocks(const std::string & addr, int port, std::shared_ptr<ClientDestination> localDestination) : m_Impl(new WebSocksImpl(addr, port))
{
m_Impl->InitializeDestination(this);
}
WebSocks::~WebSocks() { delete m_Impl; }
void WebSocks::Start()
{
m_Impl->Start();
GetLocalDestination()->Start();
}
boost::asio::ip::tcp::endpoint WebSocks::GetLocalEndpoint() const
{
return m_Impl->GetLocalEndpoint();
}
void WebSocks::Stop()
{
m_Impl->Stop();
GetLocalDestination()->Stop();
}
}
}

31
WebSocks.h
Unescape View File

@ -1,27 +1,34 @@ @@ -1,27 +1,34 @@
#ifndef WEBSOCKS_H_
#define WEBSOCKS_H_
#include <string>
#include <memory>
#include "I2PService.h"
#include "Destination.h"
namespace i2p
{
namespace client
{
class WebSocksImpl;
class WebSocksImpl;
/** @brief websocket socks proxy server */
class WebSocks
{
public:
WebSocks(const std::string & addr, int port);
~WebSocks();
/** @brief websocket socks proxy server */
class WebSocks : public i2p::client::I2PService
{
public:
WebSocks(const std::string & addr, int port, std::shared_ptr<ClientDestination> localDestination);
~WebSocks();
void Start();
void Stop();
void Start();
void Stop();
private:
WebSocksImpl * m_Impl;
};
boost::asio::ip::tcp::endpoint GetLocalEndpoint() const;
const char * GetName() { return "WebSOCKS Proxy"; }
private:
WebSocksImpl * m_Impl;
};
}
}
#endif

3
android/jni/Android.mk
Unescape View File

@ -59,7 +59,8 @@ LOCAL_SRC_FILES := DaemonAndroid.cpp i2pd_android.cpp \ @@ -59,7 +59,8 @@ LOCAL_SRC_FILES := DaemonAndroid.cpp i2pd_android.cpp \
../../TunnelPool.cpp \
../../Timestamp.cpp \
../../Event.cpp \
../../BloomFilter.cpp \
../../WebSocks.cpp \
../../BloomFilter.cpp \
../../util.cpp \
../../i2pd.cpp ../../UPnP.cpp

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