publish local LeaseSet

I2NPProtocol.cpp

@@ -215,16 +215,32 @@ namespace i2p
 		return m;
 	}	
 
-	I2NPMessage * CreateDatabaseStoreMsg (const i2p::data::LeaseSet * leaseSet)
+	I2NPMessage * CreateDatabaseStoreMsg (const i2p::data::LeaseSet * leaseSet,  uint32_t replyToken)
 	{
 		if (!leaseSet) return nullptr;
 		I2NPMessage * m = NewI2NPShortMessage ();
-		I2NPDatabaseStoreMsg * msg = (I2NPDatabaseStoreMsg *)m->GetPayload ();
+		uint8_t * payload = m->GetPayload ();	
+		I2NPDatabaseStoreMsg * msg = (I2NPDatabaseStoreMsg *)payload;
 		memcpy (msg->key, leaseSet->GetIdentHash (), 32);
 		msg->type = 1; // LeaseSet
-		msg->replyToken = 0;
-		memcpy (m->GetPayload () + sizeof (I2NPDatabaseStoreMsg), leaseSet->GetBuffer (), leaseSet->GetBufferLen ());
-		m->len += leaseSet->GetBufferLen () + sizeof (I2NPDatabaseStoreMsg);
+		msg->replyToken = htobe32 (replyToken);
+		size_t size = sizeof (I2NPDatabaseStoreMsg);
+		if (replyToken)
+		{
+			auto leases = leaseSet->GetNonExpiredLeases ();
+			if (leases.size () > 0)
+			{
+				*(uint32_t *)(payload + size) = htobe32 (leases[0].tunnelID);
+				size += 4; // reply tunnelID
+				memcpy (payload + size, leases[0].tunnelGateway, 32);
+				size += 32; // reply tunnel gateway
+			}
+			else
+				msg->replyToken = 0;
+		}
+		memcpy (payload + size, leaseSet->GetBuffer (), leaseSet->GetBufferLen ());
+		size += leaseSet->GetBufferLen ();
+		m->len += size;
 		FillI2NPMessageHeader (m, eI2NPDatabaseStore);
 		return m;
 	}

I2NPProtocol.h

@@ -172,7 +172,7 @@ namespace tunnel
 	I2NPMessage * CreateDatabaseSearchReply (const i2p::data::IdentHash& ident, const i2p::data::RouterInfo * floodfill);
 	
 	I2NPMessage * CreateDatabaseStoreMsg (const i2p::data::RouterInfo * router = nullptr);
-	I2NPMessage * CreateDatabaseStoreMsg (const i2p::data::LeaseSet * leaseSet);		
+	I2NPMessage * CreateDatabaseStoreMsg (const i2p::data::LeaseSet * leaseSet, uint32_t replyToken = 0);		
 
 	I2NPBuildRequestRecordClearText CreateBuildRequestRecord (
 		const uint8_t * ourIdent, uint32_t receiveTunnelID, 

NetDb.cpp

@@ -873,5 +873,26 @@ namespace data
 				it++;
 		}
 	}
+
+	void NetDb::PublishLeaseSet (const LeaseSet * leaseSet, i2p::tunnel::TunnelPool * pool)
+	{
+		if (!leaseSet || !pool) return;
+		auto outbound = pool->GetNextOutboundTunnel ();
+		if (!outbound)
+		{
+			LogPrint ("Can't publish LeaseSet. No outbound tunnels");
+			return;
+		}
+		std::set<IdentHash> excluded; 
+		auto floodfill = GetClosestFloodfill (leaseSet->GetIdentHash (), excluded);	
+		if (!floodfill)
+		{
+			LogPrint ("Can't publish LeaseSet. No floodfills found");
+			return;
+		}	
+		uint32_t replyToken = i2p::context.GetRandomNumberGenerator ().GenerateWord32 ();
+		auto msg = i2p::garlic::routing.WrapSingleMessage (*floodfill, i2p::CreateDatabaseStoreMsg (leaseSet, replyToken));	
+		outbound->SendTunnelDataMsg (floodfill->GetIdentHash (), 0, msg);		
+	}
 }
 }

NetDb.h

@@ -13,6 +13,7 @@
 #include "RouterInfo.h"
 #include "LeaseSet.h"
 #include "Tunnel.h"
+#include "TunnelPool.h"
 #include "AddressBook.h"
 
 namespace i2p
@@ -66,8 +67,9 @@ namespace data
 
 			void Subscribe (const IdentHash& ident); // keep LeaseSets upto date			
 			void Unsubscribe (const IdentHash& ident);	
-			void RequestDestination (const IdentHash& destination, bool isLeaseSet = false);
-						
+			void PublishLeaseSet (const LeaseSet * leaseSet, i2p::tunnel::TunnelPool * pool);
+			void RequestDestination (const IdentHash& destination, bool isLeaseSet = false);			
+			
 			void HandleDatabaseStoreMsg (uint8_t * buf, size_t len);
 			void HandleDatabaseSearchReplyMsg (I2NPMessage * msg);
 			void HandleDatabaseLookupMsg (I2NPMessage * msg);			

Streaming.cpp

@@ -494,7 +494,7 @@ namespace stream
 		
 
 	StreamingDestination::StreamingDestination (boost::asio::io_service& service): 
-		m_Service (service), m_LeaseSet (nullptr)
+		m_Service (service), m_LeaseSet (nullptr), m_IsPublic (false)
 	{		
 		m_Keys = i2p::data::CreateRandomKeys ();
 
@@ -507,7 +507,7 @@ namespace stream
 	}
 
 	StreamingDestination::StreamingDestination (boost::asio::io_service& service, const std::string& fullPath):
-		m_Service (service), m_LeaseSet (nullptr) 
+		m_Service (service), m_LeaseSet (nullptr), m_IsPublic (true) 
 	{
 		std::ifstream s(fullPath.c_str (), std::ifstream::binary);
 		if (s.is_open ())	
@@ -602,6 +602,8 @@ namespace stream
 		UpdateLeaseSet ();
 		for (auto it: m_Streams)
 			it.second->SetLeaseSetUpdated ();
+		if (m_IsPublic)
+			i2p::data::netdb.PublishLeaseSet (m_LeaseSet, m_Pool);
 	}	
 		
 	void StreamingDestination::Sign (const uint8_t * buf, int len, uint8_t * signature) const

Streaming.h

@@ -175,7 +175,8 @@ namespace stream
 			
 			i2p::tunnel::TunnelPool * m_Pool;
 			i2p::data::LeaseSet * m_LeaseSet;
-			
+			bool m_IsPublic;			
+
 			CryptoPP::DSA::PrivateKey m_SigningPrivateKey;
 			std::function<void (Stream *)> m_Acceptor;
 	};