support local sockets for I2PControl

daemon/I2PControl.cpp

@@ -30,10 +30,23 @@ namespace client
 {
 	I2PControlService::I2PControlService (const std::string& address, int port):
 		m_IsRunning (false),	
-		m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint(boost::asio::ip::make_address(address), port)),
 		m_SSLContext (boost::asio::ssl::context::sslv23),
 		m_ShutdownTimer (m_Service)
 	{
+		if (port)		
+			m_Acceptor = std::make_unique<boost::asio::ip::tcp::acceptor>(m_Service,
+				boost::asio::ip::tcp::endpoint(boost::asio::ip::make_address(address), port));
+		else
+#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
+		{		
+			std::remove (address.c_str ());	// just in case
+			m_LocalAcceptor = std::make_unique<boost::asio::local::stream_protocol::acceptor>(m_Service,
+				boost::asio::local::stream_protocol::endpoint(address));	
+		}	
+#else
+			LogPrint(eLogError, "I2PControl: Local sockets are not supported");
+#endif				
+				
 		i2p::config::GetOption("i2pcontrol.password", m_Password);
 
 		// certificate / keys
@@ -106,7 +119,15 @@ namespace client
 		if (m_IsRunning)
 		{
 			m_IsRunning = false;
-			m_Acceptor.cancel ();
+			if (m_Acceptor) m_Acceptor->cancel ();
+#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
+			if (m_LocalAcceptor) 
+			{
+				auto path = m_LocalAcceptor->local_endpoint().path();
+				m_LocalAcceptor->cancel ();
+				std::remove (path.c_str ());
+			}	
+#endif			
 			m_Service.stop ();
 			if (m_Thread)
 			{
@@ -132,40 +153,60 @@ namespace client
 
 	void I2PControlService::Accept ()
 	{
-		auto newSocket = std::make_shared<ssl_socket> (m_Service, m_SSLContext);
-		m_Acceptor.async_accept (newSocket->lowest_layer(), std::bind (&I2PControlService::HandleAccept, this,
-			std::placeholders::_1, newSocket));
+		if (m_Acceptor)
+		{	
+			auto newSocket = std::make_shared<boost::asio::ssl::stream<boost::asio::ip::tcp::socket> > (m_Service, m_SSLContext);
+			m_Acceptor->async_accept (newSocket->lowest_layer(),
+				[this, newSocket](const boost::system::error_code& ecode)
+				{
+					HandleAccepted (ecode, newSocket);
+				});		
+		}	
+#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
+		else if (m_LocalAcceptor)
+		{
+			auto newSocket = std::make_shared<boost::asio::ssl::stream<boost::asio::local::stream_protocol::socket> > (m_Service, m_SSLContext);
+			m_LocalAcceptor->async_accept (newSocket->lowest_layer(),
+				[this, newSocket](const boost::system::error_code& ecode)
+				{
+					HandleAccepted (ecode, newSocket);
+				});		
+		}	
+#endif		
 	}
 
-	void I2PControlService::HandleAccept(const boost::system::error_code& ecode, std::shared_ptr<ssl_socket> socket)
+	template<typename ssl_socket> 
+	void I2PControlService::HandleAccepted (const boost::system::error_code& ecode,
+		std::shared_ptr<ssl_socket> newSocket)
 	{
 		if (ecode != boost::asio::error::operation_aborted)
 			Accept ();
 
-		if (ecode) {
+		if (ecode) 
+		{
 			LogPrint (eLogError, "I2PControl: Accept error: ", ecode.message ());
 			return;
 		}
-		LogPrint (eLogDebug, "I2PControl: New request from ", socket->lowest_layer ().remote_endpoint ());
-		Handshake (socket);
+		LogPrint (eLogDebug, "I2PControl: New request from ", newSocket->lowest_layer ().remote_endpoint ());
+		Handshake (newSocket);
 	}	
 		
+	template<typename ssl_socket>
 	void I2PControlService::Handshake (std::shared_ptr<ssl_socket> socket)
 	{
 		socket->async_handshake(boost::asio::ssl::stream_base::server,
-		std::bind( &I2PControlService::HandleHandshake, this, std::placeholders::_1, socket));
-	}
-
-	void I2PControlService::HandleHandshake (const boost::system::error_code& ecode, std::shared_ptr<ssl_socket> socket)
+			[this, socket](const boost::system::error_code& ecode)
+		    {
+				if (ecode) 
 				{
-		if (ecode) {
 					LogPrint (eLogError, "I2PControl: Handshake error: ", ecode.message ());
 					return;
 				}
-		//std::this_thread::sleep_for (std::chrono::milliseconds(5));
 				ReadRequest (socket);
+			});			                        
 	}
 
+	template<typename ssl_socket>
 	void I2PControlService::ReadRequest (std::shared_ptr<ssl_socket> socket)
 	{
 		auto request = std::make_shared<I2PControlBuffer>();
@@ -175,10 +216,13 @@ namespace client
 #else
 			boost::asio::buffer (request->data (), request->size ()),
 #endif
-			std::bind(&I2PControlService::HandleRequestReceived, this,
-			std::placeholders::_1, std::placeholders::_2, socket, request));
+		    [this, socket, request](const boost::system::error_code& ecode, size_t bytes_transferred)
+		    {
+				HandleRequestReceived (ecode, bytes_transferred, socket, request);
+			});
 	}
 
+	template<typename ssl_socket>
 	void I2PControlService::HandleRequestReceived (const boost::system::error_code& ecode,
 		size_t bytes_transferred, std::shared_ptr<ssl_socket> socket,
 		std::shared_ptr<I2PControlBuffer> buf)
@@ -256,6 +300,7 @@ namespace client
 		}
 	}
 
+	template<typename ssl_socket>
 	void I2PControlService::SendResponse (std::shared_ptr<ssl_socket> socket,
 		std::shared_ptr<I2PControlBuffer> buf, std::ostringstream& response, bool isHtml)
 	{
@@ -278,16 +323,11 @@ namespace client
 		memcpy (buf->data () + offset, response.str ().c_str (), len);
 		boost::asio::async_write (*socket, boost::asio::buffer (buf->data (), offset + len),
 			boost::asio::transfer_all (),
-			std::bind(&I2PControlService::HandleResponseSent, this,
-				std::placeholders::_1, std::placeholders::_2, socket, buf));
-	}
-
-	void I2PControlService::HandleResponseSent (const boost::system::error_code& ecode, std::size_t bytes_transferred,
-		std::shared_ptr<ssl_socket> socket, std::shared_ptr<I2PControlBuffer> buf)
+		    [socket, buf](const boost::system::error_code& ecode, std::size_t bytes_transferred)
 		    {
-		if (ecode) {
+				if (ecode)
 					LogPrint (eLogError, "I2PControl: Write error: ", ecode.message ());
-		}
+			});	
 	}
 
 // handlers

daemon/I2PControl.h

@@ -35,8 +35,6 @@ namespace client
 
 	class I2PControlService: public I2PControlHandlers
 	{
-		typedef boost::asio::ssl::stream<boost::asio::ip::tcp::socket> ssl_socket;
-
 		public:
 
 			I2PControlService (const std::string& address, int port);
@@ -49,16 +47,18 @@ namespace client
 
 			void Run ();
 			void Accept ();
-			void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr<ssl_socket> socket);
+			template<typename ssl_socket> 
+			void HandleAccepted (const boost::system::error_code& ecode, std::shared_ptr<ssl_socket> newSocket);
+			template<typename ssl_socket>
 			void Handshake (std::shared_ptr<ssl_socket> socket);
-			void HandleHandshake (const boost::system::error_code& ecode, std::shared_ptr<ssl_socket> socket);
+			template<typename ssl_socket>
 			void ReadRequest (std::shared_ptr<ssl_socket> socket);
+			template<typename ssl_socket>
 			void HandleRequestReceived (const boost::system::error_code& ecode, size_t bytes_transferred,
 				std::shared_ptr<ssl_socket> socket, std::shared_ptr<I2PControlBuffer> buf);
+			template<typename ssl_socket>
 			void SendResponse (std::shared_ptr<ssl_socket> socket,
 				std::shared_ptr<I2PControlBuffer> buf, std::ostringstream& response, bool isHtml);
-			void HandleResponseSent (const boost::system::error_code& ecode, std::size_t bytes_transferred,
-				std::shared_ptr<ssl_socket> socket, std::shared_ptr<I2PControlBuffer> buf);
 
 			void CreateCertificate (const char *crt_path, const char *key_path);
 
@@ -89,7 +89,10 @@ namespace client
 			std::unique_ptr<std::thread> m_Thread;
 
 			boost::asio::io_context m_Service;
-			boost::asio::ip::tcp::acceptor m_Acceptor;
+			std::unique_ptr<boost::asio::ip::tcp::acceptor> m_Acceptor;
+#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
+			std::unique_ptr<boost::asio::local::stream_protocol::acceptor> m_LocalAcceptor;
+#endif		
 			boost::asio::ssl::context m_SSLContext;
 			boost::asio::deadline_timer m_ShutdownTimer;
 			std::set<std::string> m_Tokens;