recreate router.info if missing or malformed

RouterContext.cpp

@@ -356,8 +356,10 @@ namespace i2p
 			delete[] buf;
 		}
 
-		i2p::data::RouterInfo routerInfo(i2p::fs::DataDirPath (ROUTER_INFO)); // TODO
 		m_RouterInfo.SetRouterIdentity (GetIdentity ());
+		i2p::data::RouterInfo routerInfo(i2p::fs::DataDirPath (ROUTER_INFO)); 
+		if (!routerInfo.IsUnreachable ()) // router.info looks good
+		{
 			m_RouterInfo.Update (routerInfo.GetBuffer (), routerInfo.GetBufferLen ());
 			m_RouterInfo.SetProperty ("coreVersion", I2P_VERSION);
 			m_RouterInfo.SetProperty ("router.version", I2P_VERSION);
@@ -365,6 +367,12 @@ namespace i2p
 			// Migration to 0.9.24. TODO: remove later
 			m_RouterInfo.DeleteProperty ("coreVersion");
 			m_RouterInfo.DeleteProperty ("stat_uptime");
+		}
+		else
+		{
+			LogPrint (eLogError, ROUTER_INFO, " is malformed. Creating new");
+			NewRouterInfo ();
+		}			
 
 		if (IsUnreachable ())
 			SetReachable (); // we assume reachable until we discover firewall through peer tests

RouterInfo.cpp

@@ -104,6 +104,8 @@ namespace data
 	{
 		if (LoadFile ())
 			ReadFromBuffer (false); 
+		else
+			m_IsUnreachable = true;	
 	}	
 
 	void RouterInfo::ReadFromBuffer (bool verifySignature)