I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#ifndef DATAGRAM_H__
#define DATAGRAM_H__
#include <inttypes.h>
#include <memory>
#include <functional>
#include <map>
#include "Base.h"
#include "Identity.h"
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#include "LeaseSet.h"
#include "I2NPProtocol.h"
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namespace i2p
{
namespace client
{
class ClientDestination;
}
namespace datagram
{
const size_t MAX_DATAGRAM_SIZE = 32768;
class DatagramDestination
{
typedef std::function<void (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len)> Receiver;
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public:
DatagramDestination (std::shared_ptr<i2p::client::ClientDestination> owner);
~DatagramDestination ();
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void SendDatagramTo (const uint8_t * payload, size_t len, const i2p::data::IdentHash& ident, uint16_t fromPort = 0, uint16_t toPort = 0);
void HandleDataMessagePayload (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
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void SetReceiver (const Receiver& receiver) { m_Receiver = receiver; };
void ResetReceiver () { m_Receiver = nullptr; };
void SetReceiver (const Receiver& receiver, uint16_t port) { m_ReceiversByPorts[port] = receiver; };
void ResetReceiver (uint16_t port) { m_ReceiversByPorts.erase (port); };
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private:
void HandleLeaseSetRequestComplete (std::shared_ptr<i2p::data::LeaseSet> leaseSet, I2NPMessage * msg);
I2NPMessage * CreateDataMessage (const uint8_t * payload, size_t len, uint16_t fromPort, uint16_t toPort);
void SendMsg (I2NPMessage * msg, std::shared_ptr<const i2p::data::LeaseSet> remote);
void HandleDatagram (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
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private:
std::shared_ptr<i2p::client::ClientDestination> m_Owner;
Receiver m_Receiver; // default
std::map<uint16_t, Receiver> m_ReceiversByPorts;
i2p::data::GzipInflator m_Inflator;
i2p::data::GzipDeflator m_Deflator;
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};
}
}
#endif