moved Data payload processing to StreamingDestination

Destination.cpp

@@ -1,7 +1,6 @@
 #include <fstream>
 #include <algorithm>
 #include <cryptopp/dh.h>
-#include <cryptopp/gzip.h>
 #include "Log.h"
 #include "util.h"
 #include "NetDb.h"
@@ -244,51 +243,16 @@ namespace client
 		uint32_t length = be32toh (*(uint32_t *)buf);
 		buf += 4;
 		// we assume I2CP payload
-		if (buf[9] == PROTOCOL_TYPE_STREAMING && m_StreamingDestination) // streaming protocol
-		{	
-			// unzip it
-			CryptoPP::Gunzip decompressor;
-			decompressor.Put (buf, length);
-			decompressor.MessageEnd();
-			i2p::stream::Packet * uncompressed = new i2p::stream::Packet;
-			uncompressed->offset = 0;
-			uncompressed->len = decompressor.MaxRetrievable ();
-			if (uncompressed->len <= i2p::stream::MAX_PACKET_SIZE)
-			{
-				decompressor.Get (uncompressed->buf, uncompressed->len);
-				m_StreamingDestination->HandleNextPacket (uncompressed); 
-			}
-			else
-			{
-				LogPrint ("Received packet size ", uncompressed->len,  " exceeds max packet size. Skipped");
-				delete uncompressed;
-			}	
-		}	
-		else
-			LogPrint ("Data: unexpected protocol ", buf[9]);
-	}	
-	
-	I2NPMessage * ClientDestination::CreateDataMessage (const uint8_t * payload, size_t len)
-	{
-		I2NPMessage * msg = NewI2NPShortMessage ();
-		CryptoPP::Gzip compressor;
-		if (len <= i2p::stream::COMPRESSION_THRESHOLD_SIZE)
-			compressor.SetDeflateLevel (CryptoPP::Gzip::MIN_DEFLATE_LEVEL);
-		else
-			compressor.SetDeflateLevel (CryptoPP::Gzip::DEFAULT_DEFLATE_LEVEL);
-		compressor.Put (payload, len);
-		compressor.MessageEnd();
-		int size = compressor.MaxRetrievable ();
-		uint8_t * buf = msg->GetPayload ();
-		*(uint32_t *)buf = htobe32 (size); // length
-		buf += 4;
-		compressor.Get (buf, size);
-		memset (buf + 4, 0, 4); // source and destination ports. TODO: fill with proper values later
-		buf[9] = PROTOCOL_TYPE_STREAMING; // streaming protocol. TODO:
-		msg->len += size + 4; 
-		FillI2NPMessageHeader (msg, eI2NPData);
-		
-		return msg;
+		switch (buf[9])
+		{
+			case PROTOCOL_TYPE_STREAMING:
+				// streaming protocol
+				if (m_StreamingDestination)
+					m_StreamingDestination->HandleDataMessagePayload (buf, length);
+			break;
+			default:
+				LogPrint ("Data: unexpected protocol ", buf[9]);
+		}
 	}	
 
 	i2p::stream::Stream * ClientDestination::CreateStream (const i2p::data::LeaseSet& remote)

Destination.h

@@ -61,7 +61,6 @@ namespace client
 
 			// I2CP
 			void HandleDataMessage (const uint8_t * buf, size_t len);
-			I2NPMessage * CreateDataMessage (const uint8_t * payload, size_t len);
 
 		private:
 				

Streaming.cpp

@@ -1,3 +1,4 @@
+#include <cryptopp/gzip.h>
 #include "Log.h"
 #include "RouterInfo.h"
 #include "RouterContext.h"
@@ -441,7 +442,7 @@ namespace stream
 			for (auto it: packets)
 			{ 
 				auto msg = m_RoutingSession->WrapSingleMessage ( 
-					m_LocalDestination.GetOwner ().CreateDataMessage (it->GetBuffer (), it->GetLength ()));
+					m_LocalDestination.CreateDataMessage (it->GetBuffer (), it->GetLength ()));
 				msgs.push_back (i2p::tunnel::TunnelMessageBlock 
 							{ 
 								i2p::tunnel::eDeliveryTypeTunnel,
@@ -606,6 +607,50 @@ namespace stream
 		}	
 	}		
 
+	void StreamingDestination::HandleDataMessagePayload (const uint8_t * buf, size_t len)
+	{
+		// unzip it
+		CryptoPP::Gunzip decompressor;
+		decompressor.Put (buf, len);
+		decompressor.MessageEnd();
+		Packet * uncompressed = new Packet;
+		uncompressed->offset = 0;
+		uncompressed->len = decompressor.MaxRetrievable ();
+		if (uncompressed->len <= MAX_PACKET_SIZE)
+		{
+			decompressor.Get (uncompressed->buf, uncompressed->len);
+			HandleNextPacket (uncompressed); 
+		}
+		else
+		{
+			LogPrint ("Received packet size ", uncompressed->len,  " exceeds max packet size. Skipped");
+			delete uncompressed;
+		}	
+	}
+
+	I2NPMessage * StreamingDestination::CreateDataMessage (const uint8_t * payload, size_t len)
+	{
+		I2NPMessage * msg = NewI2NPShortMessage ();
+		CryptoPP::Gzip compressor;
+		if (len <= i2p::stream::COMPRESSION_THRESHOLD_SIZE)
+			compressor.SetDeflateLevel (CryptoPP::Gzip::MIN_DEFLATE_LEVEL);
+		else
+			compressor.SetDeflateLevel (CryptoPP::Gzip::DEFAULT_DEFLATE_LEVEL);
+		compressor.Put (payload, len);
+		compressor.MessageEnd();
+		int size = compressor.MaxRetrievable ();
+		uint8_t * buf = msg->GetPayload ();
+		*(uint32_t *)buf = htobe32 (size); // length
+		buf += 4;
+		compressor.Get (buf, size);
+		memset (buf + 4, 0, 4); // source and destination ports. TODO: fill with proper values later
+		buf[9] = i2p::client::PROTOCOL_TYPE_STREAMING; // streaming protocol
+		msg->len += size + 4; 
+		FillI2NPMessageHeader (msg, eI2NPData);
+		
+		return msg;
+	}	
+
 	void DeleteStream (Stream * stream)
 	{
 		if (stream)

Streaming.h

@@ -160,13 +160,14 @@ namespace stream
 			void SetAcceptor (const std::function<void (Stream *)>& acceptor) { m_Acceptor = acceptor; };
 			void ResetAcceptor () { m_Acceptor = nullptr; };
 			bool IsAcceptorSet () const { return m_Acceptor != nullptr; };	
-
-			// ClientDestination
 			i2p::client::ClientDestination& GetOwner () { return m_Owner; };
-			void HandleNextPacket (Packet * packet);
+
+			I2NPMessage * CreateDataMessage (const uint8_t * payload, size_t len);
+			void HandleDataMessagePayload (const uint8_t * buf, size_t len);
 
 		private:		
 	
+			void HandleNextPacket (Packet * packet);
 			Stream * CreateNewIncomingStream ();
 
 		private: