Method HostLookupMessageHandler

libi2pd_client/I2CP.cpp:959–1015

	}

	void I2CPSession::HostLookupMessageHandler (const uint8_t * buf, size_t len)
	{
		uint16_t sessionID = bufbe16toh (buf);
		if (sessionID == m_SessionID || sessionID == 0xFFFF) // -1 means without session
		{
			uint32_t requestID = bufbe32toh (buf + 2);
			//uint32_t timeout = bufbe32toh (buf + 6);
			i2p::data::IdentHash ident;
			switch (buf[10])
			{
				case 0: // hash
					ident = i2p::data::IdentHash (buf + 11);
				break;
				case 1: // address
				{
					auto name = i2p::util::Mapping::ExtractString (buf + 11, len - 11);
					auto addr = i2p::client::context.GetAddressBook ().GetAddress (name);
					if (!addr || !addr->IsIdentHash ())
					{
						// TODO: handle blinded addresses
						LogPrint (eLogError, "I2CP: Address ", name, " not found");
						SendHostReplyMessage (requestID, nullptr);
						return;
					}
					else
						ident = addr->identHash;
					break;
				}
				default:
					LogPrint (eLogError, "I2CP: Request type ", (int)buf[10], " is not supported");
					SendHostReplyMessage (requestID, nullptr);
					return;
			}

			std::shared_ptr<LeaseSetDestination> destination = m_Destination;
			if(!destination) destination = i2p::client::context.GetSharedLocalDestination ();
			if (destination)
			{
				auto ls = destination->FindLeaseSet (ident);
				if (ls)
					SendHostReplyMessage (requestID, ls->GetIdentity ());
				else
				{
					auto s = shared_from_this ();
					destination->RequestDestination (ident,
						[s, requestID](std::shared_ptr<i2p::data::LeaseSet> leaseSet)
						{
							s->SendHostReplyMessage (requestID, leaseSet ? leaseSet->GetIdentity () : nullptr);
						});
				}
			}
			else
				SendHostReplyMessage (requestID, nullptr);
		}
		else
			LogPrint (eLogError, "I2CP: Unexpected sessionID ", sessionID);
	}