added gzip parameter for server tunnels

ClientContext.cpp

@@ -313,6 +313,7 @@ namespace client
 					int inPort = section.second.get (I2P_SERVER_TUNNEL_INPORT, 0);
 					std::string accessList = section.second.get (I2P_SERVER_TUNNEL_ACCESS_LIST, "");
 					std::string hostOverride = section.second.get (I2P_SERVER_TUNNEL_HOST_OVERRIDE, "");
+					bool gzip = section.second.get (I2P_SERVER_TUNNEL_GZIP, true);
 					i2p::data::SigningKeyType sigType = section.second.get (I2P_SERVER_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256);
 					// I2CP
 					std::map<std::string, std::string> options;							 
@@ -326,13 +327,12 @@ namespace client
 						localDestination = CreateNewLocalDestination (k, true, &options);
 
 					I2PServerTunnel * serverTunnel;
-					if (type == I2P_TUNNELS_SECTION_TYPE_HTTP) {
+					if (type == I2P_TUNNELS_SECTION_TYPE_HTTP)
-                        serverTunnel = new I2PServerTunnelHTTP (name, host, port, localDestination, hostOverride, inPort);
+                    	serverTunnel = new I2PServerTunnelHTTP (name, host, port, localDestination, hostOverride, inPort, gzip);
-               		} else if (type == I2P_TUNNELS_SECTION_TYPE_SERVER) {
+               		else if (type == I2P_TUNNELS_SECTION_TYPE_IRC)
-                       	serverTunnel = new I2PServerTunnel (name, host, port, localDestination, inPort);
+                    	serverTunnel = new I2PServerTunnelIRC (name, host, port, localDestination, inPort, gzip);
-               		} else if (type == I2P_TUNNELS_SECTION_TYPE_IRC) {
+					else // regular server tunnel by default
-                       	serverTunnel = new I2PServerTunnelIRC (name, host, port, localDestination, inPort);
+                   		serverTunnel = new I2PServerTunnel (name, host, port, localDestination, inPort, gzip);
-               		}
 
 					if (accessList.length () > 0)
 					{

ClientContext.h

@@ -35,6 +35,7 @@ namespace client
 	const char I2P_SERVER_TUNNEL_SIGNATURE_TYPE[] = "signaturetype";
 	const char I2P_SERVER_TUNNEL_INPORT[] = "inport";
 	const char I2P_SERVER_TUNNEL_ACCESS_LIST[] = "accesslist";		
+	const char I2P_SERVER_TUNNEL_GZIP[] = "gzip";	
 
 	class ClientContext
 	{

Destination.cpp

@@ -576,9 +576,9 @@ namespace client
 		return false;
 	}	
 
-	std::shared_ptr<i2p::stream::StreamingDestination> ClientDestination::CreateStreamingDestination (int port)
+	std::shared_ptr<i2p::stream::StreamingDestination> ClientDestination::CreateStreamingDestination (int port, bool gzip)
 	{
-		auto dest = std::make_shared<i2p::stream::StreamingDestination> (shared_from_this (), port); 
+		auto dest = std::make_shared<i2p::stream::StreamingDestination> (shared_from_this (), port, gzip); 
 		if (port)
 			m_StreamingDestinationsByPorts[port] = dest;
 		else // update default 

Destination.h

@@ -46,7 +46,7 @@ namespace client
 	const int STREAM_REQUEST_TIMEOUT = 60; //in seconds
 	const char I2CP_PARAM_TAGS_TO_SEND[] = "crypto.tagsToSend";
 	const int DEFAULT_TAGS_TO_SEND = 40;
-	
+
 	typedef std::function<void (std::shared_ptr<i2p::stream::Stream> stream)> StreamRequestComplete;
 
 	class ClientDestination: public i2p::garlic::GarlicDestination,
@@ -82,7 +82,7 @@ namespace client
 			void CancelDestinationRequest (const i2p::data::IdentHash& dest);	
 			
 			// streaming
-			std::shared_ptr<i2p::stream::StreamingDestination> CreateStreamingDestination (int port); // additional
+			std::shared_ptr<i2p::stream::StreamingDestination> CreateStreamingDestination (int port, bool gzip = true); // additional
 			std::shared_ptr<i2p::stream::StreamingDestination> GetStreamingDestination (int port = 0) const;
 			// following methods operate with default streaming destination
 			void CreateStream (StreamRequestComplete streamRequestComplete, const i2p::data::IdentHash& dest, int port = 0);

I2PTunnel.cpp

@@ -371,10 +371,10 @@ namespace client
 	}
 
 	I2PServerTunnel::I2PServerTunnel (const std::string& name, const std::string& address, 
-	    int port, std::shared_ptr<ClientDestination> localDestination, int inport): 
+	    int port, std::shared_ptr<ClientDestination> localDestination, int inport, bool gzip): 
 		I2PService (localDestination), m_Name (name), m_Address (address), m_Port (port), m_IsAccessList (false)
 	{
-		m_PortDestination = localDestination->CreateStreamingDestination (inport > 0 ? inport : port);
+		m_PortDestination = localDestination->CreateStreamingDestination (inport > 0 ? inport : port, gzip);
 	}
 	
 	void I2PServerTunnel::Start ()
@@ -462,8 +462,8 @@ namespace client
 
 	I2PServerTunnelHTTP::I2PServerTunnelHTTP (const std::string& name, const std::string& address, 
 	    int port, std::shared_ptr<ClientDestination> localDestination, 
-	    const std::string& host, int inport):
+	    const std::string& host, int inport, bool gzip):
-		I2PServerTunnel (name, address, port, localDestination, inport), 
+		I2PServerTunnel (name, address, port, localDestination, inport, gzip), 
 		m_Host (host.length () > 0 ? host : address)
 	{
 	}
@@ -477,8 +477,8 @@ namespace client
 	}
 
     I2PServerTunnelIRC::I2PServerTunnelIRC (const std::string& name, const std::string& address, 
-        int port, std::shared_ptr<ClientDestination> localDestination, int inport):
+        int port, std::shared_ptr<ClientDestination> localDestination, int inport, bool gzip):
-        I2PServerTunnel (name, address, port, localDestination, inport)
+        I2PServerTunnel (name, address, port, localDestination, inport, gzip)
     {
     }
 

I2PTunnel.h

@@ -134,7 +134,7 @@ namespace client
 		public:
 
 			I2PServerTunnel (const std::string& name, const std::string& address, int port, 
-				std::shared_ptr<ClientDestination> localDestination, int inport = 0);	
+				std::shared_ptr<ClientDestination> localDestination, int inport = 0, bool gzip = true);	
 
 			void Start ();
 			void Stop ();
@@ -173,7 +173,7 @@ namespace client
 
 			I2PServerTunnelHTTP (const std::string& name, const std::string& address, int port, 
 				std::shared_ptr<ClientDestination> localDestination, const std::string& host,
-			    int inport = 0);	
+			    int inport = 0, bool gzip = true);	
 
 		private:
 
@@ -189,7 +189,7 @@ namespace client
         public:
 
             I2PServerTunnelIRC (const std::string& name, const std::string& address, int port, 
-                std::shared_ptr<ClientDestination> localDestination, int inport = 0);   
+                std::shared_ptr<ClientDestination> localDestination, int inport = 0, bool gzip = true);   
 
         private:
 

Streaming.cpp

@@ -628,7 +628,7 @@ namespace stream
 			std::vector<i2p::tunnel::TunnelMessageBlock> msgs;
 			for (auto it: packets)
 			{ 
-				auto msg = m_RoutingSession->WrapSingleMessage (CreateDataMessage (it->GetBuffer (), it->GetLength ()));
+				auto msg = m_RoutingSession->WrapSingleMessage (m_LocalDestination.CreateDataMessage (it->GetBuffer (), it->GetLength (), m_Port));
 				msgs.push_back (i2p::tunnel::TunnelMessageBlock 
 					{ 
 						i2p::tunnel::eDeliveryTypeTunnel,
@@ -779,33 +779,9 @@ namespace stream
 			m_CurrentRemoteLease = nullptr;
 	}	
 
-	std::shared_ptr<I2NPMessage> Stream::CreateDataMessage (const uint8_t * payload, size_t len)
+	StreamingDestination::StreamingDestination (std::shared_ptr<i2p::client::ClientDestination> owner, uint16_t localPort, bool gzip): 
-	{
+		m_Owner (owner), m_LocalPort (localPort), m_Gzip (gzip), 
-		auto msg = NewI2NPShortMessage ();
+		m_PendingIncomingTimer (m_Owner->GetService ())
-		if (len <= i2p::stream::COMPRESSION_THRESHOLD_SIZE)
-			m_LocalDestination.m_Deflator.SetCompressionLevel (Z_NO_COMPRESSION);
-		else
-			m_LocalDestination.m_Deflator.SetCompressionLevel (Z_DEFAULT_COMPRESSION);
-		uint8_t * buf = msg->GetPayload ();
-		buf += 4; // reserve for lengthlength
-		msg->len += 4;
-		size_t size = m_LocalDestination.m_Deflator.Deflate (payload, len, buf, msg->maxLen - msg->len);
-		if (size)
-		{
-			htobe32buf (msg->GetPayload (), size); // length
-			htobe16buf (buf + 4, m_LocalDestination.GetLocalPort ()); // source port
-			htobe16buf (buf + 6, m_Port); // destination port 
-			buf[9] = i2p::client::PROTOCOL_TYPE_STREAMING; // streaming protocol
-			msg->len += size; 
-			msg->FillI2NPMessageHeader (eI2NPData);
-		}	
-		else
-			msg = nullptr;
-		return msg;
-	}	
-
-	StreamingDestination::StreamingDestination (std::shared_ptr<i2p::client::ClientDestination> owner, uint16_t localPort): 
-		m_Owner (owner), m_LocalPort (localPort), m_PendingIncomingTimer (m_Owner->GetService ())
 	{
 	}
 		
@@ -993,5 +969,30 @@ namespace stream
 		else
 			delete uncompressed;
 	}
+
+	std::shared_ptr<I2NPMessage> StreamingDestination::CreateDataMessage (const uint8_t * payload, size_t len, uint16_t toPort)
+	{
+		auto msg = NewI2NPShortMessage ();
+		if (!m_Gzip || len <= i2p::stream::COMPRESSION_THRESHOLD_SIZE)
+			m_Deflator.SetCompressionLevel (Z_NO_COMPRESSION);
+		else
+			m_Deflator.SetCompressionLevel (Z_DEFAULT_COMPRESSION);
+		uint8_t * buf = msg->GetPayload ();
+		buf += 4; // reserve for lengthlength
+		msg->len += 4;
+		size_t size = m_Deflator.Deflate (payload, len, buf, msg->maxLen - msg->len);
+		if (size)
+		{
+			htobe32buf (msg->GetPayload (), size); // length
+			htobe16buf (buf + 4, m_LocalPort); // source port
+			htobe16buf (buf + 6, toPort); // destination port 
+			buf[9] = i2p::client::PROTOCOL_TYPE_STREAMING; // streaming protocol
+			msg->len += size; 
+			msg->FillI2NPMessageHeader (eI2NPData);
+		}	
+		else
+			msg = nullptr;
+		return msg;
+	}	
 }		
 }	

Streaming.h

@@ -158,8 +158,6 @@ namespace stream
 			void ScheduleResend ();
 			void HandleResendTimer (const boost::system::error_code& ecode);
 			void HandleAckSendTimer (const boost::system::error_code& ecode);
-
-			std::shared_ptr<I2NPMessage> CreateDataMessage (const uint8_t * payload, size_t len);
 			
 		private:
 
@@ -195,7 +193,7 @@ namespace stream
 
 			typedef std::function<void (std::shared_ptr<Stream>)> Acceptor;
 
-			StreamingDestination (std::shared_ptr<i2p::client::ClientDestination> owner, uint16_t localPort = 0);
+			StreamingDestination (std::shared_ptr<i2p::client::ClientDestination> owner, uint16_t localPort = 0, bool gzip = true);
 			~StreamingDestination ();	
 
 			void Start ();
@@ -210,6 +208,7 @@ namespace stream
 			uint16_t GetLocalPort () const { return m_LocalPort; };
 
 			void HandleDataMessagePayload (const uint8_t * buf, size_t len);
+			std::shared_ptr<I2NPMessage> CreateDataMessage (const uint8_t * payload, size_t len, uint16_t toPort);
 
 		private:		
 	
@@ -221,6 +220,7 @@ namespace stream
 
 			std::shared_ptr<i2p::client::ClientDestination> m_Owner;
 			uint16_t m_LocalPort;
+			bool m_Gzip; // gzip compression of data messages
 			std::mutex m_StreamsMutex;
 			std::map<uint32_t, std::shared_ptr<Stream> > m_Streams; // sendStreamID->stream
 			Acceptor m_Acceptor;