Implement #243, separate core/client (PCH support dropped for now)

core/RouterContext.h

@@ -0,0 +1,107 @@
+#ifndef ROUTER_CONTEXT_H__
+#define ROUTER_CONTEXT_H__
+
+#include <inttypes.h>
+#include <string>
+#include <memory>
+#include <mutex>
+#include <boost/asio.hpp>
+#include <cryptopp/dsa.h>
+#include <cryptopp/osrng.h>
+#include "Identity.h"
+#include "RouterInfo.h"
+#include "Garlic.h"
+
+namespace i2p
+{
+    const char ROUTER_INFO[] = "router.info";
+    const char ROUTER_KEYS[] = "router.keys";   
+    const int ROUTER_INFO_UPDATE_INTERVAL = 1800; // 30 minutes
+    
+    const char ROUTER_INFO_PROPERTY_LEASESETS[] = "netdb.knownLeaseSets";
+    const char ROUTER_INFO_PROPERTY_ROUTERS[] = "netdb.knownRouters";       
+
+    enum RouterStatus
+    {
+        eRouterStatusOK = 0,
+        eRouterStatusTesting = 1,
+        eRouterStatusFirewalled = 2
+    };  
+
+    class RouterContext: public i2p::garlic::GarlicDestination 
+    {
+        public:
+
+            RouterContext ();
+            void Init ();
+
+            i2p::data::RouterInfo& GetRouterInfo () { return m_RouterInfo; };
+            std::shared_ptr<const i2p::data::RouterInfo> GetSharedRouterInfo () const 
+            { 
+                return std::shared_ptr<const i2p::data::RouterInfo> (&m_RouterInfo, 
+                    [](const i2p::data::RouterInfo *) {});
+            }
+            CryptoPP::RandomNumberGenerator& GetRandomNumberGenerator () { return m_Rnd; }; 
+            uint32_t GetUptime () const;
+            uint32_t GetStartupTime () const { return m_StartupTime; };
+            uint64_t GetLastUpdateTime () const { return m_LastUpdateTime; };
+            RouterStatus GetStatus () const { return m_Status; };
+            void SetStatus (RouterStatus status) { m_Status = status; };
+
+            void UpdatePort (int port); // called from Daemon
+            void UpdateAddress (const boost::asio::ip::address& host);  // called from SSU or Daemon
+            bool AddIntroducer (const i2p::data::RouterInfo& routerInfo, uint32_t tag);
+            void RemoveIntroducer (const boost::asio::ip::udp::endpoint& e);
+            bool IsUnreachable () const;
+            void SetUnreachable ();     
+            void SetReachable ();
+            bool IsFloodfill () const { return m_IsFloodfill; };    
+            void SetFloodfill (bool floodfill); 
+            void SetHighBandwidth ();
+            void SetLowBandwidth ();
+            bool AcceptsTunnels () const { return m_AcceptsTunnels; };
+            void SetAcceptsTunnels (bool acceptsTunnels) { m_AcceptsTunnels = acceptsTunnels; };
+            bool SupportsV6 () const { return m_RouterInfo.IsV6 (); };
+            void SetSupportsV6 (bool supportsV6);
+            void UpdateNTCPV6Address (const boost::asio::ip::address& host); // called from NTCP session        
+            void UpdateStats ();        
+
+            // implements LocalDestination
+            const i2p::data::PrivateKeys& GetPrivateKeys () const { return m_Keys; };
+            const uint8_t * GetEncryptionPrivateKey () const { return m_Keys.GetPrivateKey (); };
+            const uint8_t * GetEncryptionPublicKey () const { return GetIdentity ().GetStandardIdentity ().publicKey; };
+            void SetLeaseSetUpdated () {};
+
+            // implements GarlicDestination
+            std::shared_ptr<const i2p::data::LeaseSet> GetLeaseSet () { return nullptr; };
+            std::shared_ptr<i2p::tunnel::TunnelPool> GetTunnelPool () const;
+            void HandleI2NPMessage (const uint8_t * buf, size_t len, std::shared_ptr<i2p::tunnel::InboundTunnel> from);
+
+            // override GarlicDestination
+            void ProcessGarlicMessage (std::shared_ptr<I2NPMessage> msg);
+            void ProcessDeliveryStatusMessage (std::shared_ptr<I2NPMessage> msg);   
+            
+        private:
+
+            void CreateNewRouter ();
+            void NewRouterInfo ();
+            void UpdateRouterInfo ();
+            bool Load ();
+            void SaveKeys ();
+            
+        private:
+
+            i2p::data::RouterInfo m_RouterInfo;
+            i2p::data::PrivateKeys m_Keys; 
+            CryptoPP::AutoSeededRandomPool m_Rnd;
+            uint64_t m_LastUpdateTime;
+            bool m_AcceptsTunnels, m_IsFloodfill;
+            uint64_t m_StartupTime; // in seconds since epoch
+            RouterStatus m_Status;
+            std::mutex m_GarlicMutex;
+    };
+
+    extern RouterContext context;
+}   
+
+#endif