set nickname for destination

libi2pd/Destination.cpp

@@ -23,8 +23,10 @@ namespace client
 		int outQty  = DEFAULT_OUTBOUND_TUNNELS_QUANTITY;
 		int numTags = DEFAULT_TAGS_TO_SEND;
 		std::shared_ptr<std::vector<i2p::data::IdentHash> > explicitPeers;
-		try {
-			if (params) {
+		try 
+		{
+			if (params) 
+			{
 				auto it = params->find (I2CP_PARAM_INBOUND_TUNNEL_LENGTH);
 				if (it != params->end ())
 					inLen = std::stoi(it->second);
@@ -55,8 +57,15 @@ namespace client
 						LogPrint (eLogInfo, "Destination: Added to explicit peers list: ", b64);
 					}
 				}
+				it = params->find (I2CP_PARAM_INBOUND_NICKNAME);
+				if (it != params->end ())
+					m_Nickname = it->second;
+				else
+					m_Nickname = i2p::data::GetIdentHashAbbreviation (GetIdentHash ());
 			}
-		} catch (std::exception & ex) {
+		} 
+		catch (std::exception & ex) 
+		{
 			LogPrint(eLogError, "Destination: unable to parse parameters for destination: ", ex.what());
 		}
 		SetNumTags (numTags);

libi2pd/Destination.h

@@ -50,6 +50,7 @@ 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;
+	const char I2CP_PARAM_INBOUND_NICKNAME[] = "inbound.nickname";
 
 	// latency
 	const char I2CP_PARAM_MIN_TUNNEL_LATENCY[] = "latency.min";
@@ -86,6 +87,7 @@ namespace client
 
 			LeaseSetDestination (bool isPublic, const std::map<std::string, std::string> * params = nullptr);
 			~LeaseSetDestination ();
+			const std::string& GetNickname () const { return m_Nickname; };
 
 			virtual bool Start ();
 			virtual bool Stop ();
@@ -153,6 +155,7 @@ namespace client
 
 			boost::asio::deadline_timer m_PublishConfirmationTimer, m_PublishVerificationTimer,
 				m_PublishDelayTimer, m_CleanupTimer;
+			std::string m_Nickname;
 
 		public: