I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#ifndef ROUTER_INFO_H__
#define ROUTER_INFO_H__
#include <inttypes.h>
#include <string>
#include <map>
#include <vector>
#include <iostream>
#include <boost/asio.hpp>
#include "Identity.h"
namespace i2p
{
namespace data
{
class RouterInfo: public RoutingDestination
{
public:
enum SupportedTranports
{
eNTCPV4 = 0x01,
eNTCPV6 = 0x02,
eSSUV4 = 0x04,
eSSUV6 = 0x08
};
enum Caps
{
eFloodfill = 0x01,
eHighBandwidth = 0x02,
eReachable = 0x04,
eSSUTesting = 0x08,
eSSUIntroducer = 0x10,
eHidden = 0x20
};
enum TransportStyle
{
eTransportUnknown = 0,
eTransportNTCP,
eTransportSSU
};
struct Introducer
{
boost::asio::ip::address iHost;
int iPort;
uint8_t iKey[32];
uint32_t iTag;
};
struct Address
{
TransportStyle transportStyle;
boost::asio::ip::address host;
int port;
uint64_t date;
uint8_t cost;
// SSU only
uint8_t key[32]; // intro key for SSU
std::vector<Introducer> introducers;
};
RouterInfo (const char * filename);
RouterInfo () = default;
RouterInfo (const RouterInfo& ) = default;
RouterInfo& operator=(const RouterInfo& ) = default;
RouterInfo (const uint8_t * buf, int len);
const Identity& GetRouterIdentity () const { return m_RouterIdentity; };
void SetRouterIdentity (const Identity& identity);
const char * GetIdentHashBase64 () const { return m_IdentHashBase64; };
const char * GetIdentHashAbbreviation () const { return m_IdentHashAbbreviation; };
uint64_t GetTimestamp () const { return m_Timestamp; };
std::vector<Address>& GetAddresses () { return m_Addresses; };
const Address * GetNTCPAddress (bool v4only = true) const;
const Address * GetSSUAddress (bool v4only = true) const;
const RoutingKey& GetRoutingKey () const { return m_RoutingKey; };
void AddNTCPAddress (const char * host, int port);
void AddSSUAddress (const char * host, int port, const uint8_t * key);
void SetProperty (const char * key, const char * value);
const char * GetProperty (const char * key) const;
bool IsFloodfill () const;
bool IsNTCP (bool v4only = true) const;
bool IsSSU (bool v4only = true) const;
bool IsCompatible (const RouterInfo& other) const { return m_SupportedTransports & other.m_SupportedTransports; };
bool UsesIntroducer () const;
bool IsIntroducer () const { return m_Caps & eSSUIntroducer; };
bool IsPeerTesting () const { return m_Caps & eSSUTesting; };
bool IsHidden () const { return m_Caps & eHidden; };
uint8_t GetCaps () const { return m_Caps; };
void SetUnreachable (bool unreachable) { m_IsUnreachable = unreachable; };
bool IsUnreachable () const { return m_IsUnreachable; };
void CreateBuffer ();
void UpdateRoutingKey ();
const char * GetBuffer () const { return m_Buffer; };
int GetBufferLen () const { return m_BufferLen; };
bool IsUpdated () const { return m_IsUpdated; };
void SetUpdated (bool updated) { m_IsUpdated = updated; };
// implements RoutingDestination
const IdentHash& GetIdentHash () const { return m_IdentHash; };
const uint8_t * GetEncryptionPublicKey () const { return m_RouterIdentity.publicKey; };
bool IsDestination () const { return false; };
private:
void ReadFromFile (const char * filename);
void ReadFromStream (std::istream& s);
void ReadFromBuffer ();
void WriteToStream (std::ostream& s);
size_t ReadString (char * str, std::istream& s);
void WriteString (const std::string& str, std::ostream& s);
void ExtractCaps (const char * value);
void UpdateIdentHashBase64 ();
const Address * GetAddress (TransportStyle s, bool v4only) const;
private:
Identity m_RouterIdentity;
IdentHash m_IdentHash;
RoutingKey m_RoutingKey;
char m_IdentHashBase64[48], m_IdentHashAbbreviation[5];
char m_Buffer[2048];
int m_BufferLen;
uint64_t m_Timestamp;
std::vector<Address> m_Addresses;
std::map<std::string, std::string> m_Properties;
bool m_IsUpdated, m_IsUnreachable;
uint8_t m_SupportedTransports, m_Caps;
};
}
}
#endif