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#ifndef TRANSPORT_SESSION_H__
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#define TRANSPORT_SESSION_H__
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#include <inttypes.h>
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#include <iostream>
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#include <memory>
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#include <vector>
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#include "Identity.h"
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#include "RouterInfo.h"
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#include "I2NPProtocol.h"
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namespace i2p
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{
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namespace transport
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{
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struct DHKeysPair // transient keys for transport sessions
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{
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uint8_t publicKey[256];
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uint8_t privateKey[256];
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};
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class SignedData
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{
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public:
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SignedData () {};
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void Insert (const uint8_t * buf, size_t len)
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{
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m_Stream.write ((char *)buf, len);
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}
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template<typename T>
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void Insert (T t)
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{
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m_Stream.write ((char *)&t, sizeof (T));
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}
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bool Verify (const i2p::data::IdentityEx& ident, const uint8_t * signature) const
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{
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return ident.Verify ((const uint8_t *)m_Stream.str ().c_str (), m_Stream.str ().size (), signature);
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}
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void Sign (const i2p::data::PrivateKeys& keys, uint8_t * signature) const
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{
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keys.Sign ((const uint8_t *)m_Stream.str ().c_str (), m_Stream.str ().size (), signature);
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}
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private:
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std::stringstream m_Stream;
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};
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class TransportSession
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{
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public:
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TransportSession (std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter):
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m_RemoteRouter (in_RemoteRouter), m_DHKeysPair (nullptr)
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{
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if (m_RemoteRouter)
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m_RemoteIdentity = m_RemoteRouter->GetRouterIdentity ();
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}
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virtual ~TransportSession () { delete m_DHKeysPair; };
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virtual void Terminate () = 0;
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std::shared_ptr<const i2p::data::RouterInfo> GetRemoteRouter () { return m_RemoteRouter; };
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const i2p::data::IdentityEx& GetRemoteIdentity () { return m_RemoteIdentity; };
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virtual void SendI2NPMessage (I2NPMessage * msg) = 0;
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virtual void SendI2NPMessages (const std::vector<I2NPMessage *>& msgs) = 0;
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protected:
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std::shared_ptr<const i2p::data::RouterInfo> m_RemoteRouter;
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i2p::data::IdentityEx m_RemoteIdentity;
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DHKeysPair * m_DHKeysPair; // X - for client and Y - for server
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};
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}
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}
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#endif
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