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use plain buffer instead stream for SignedData

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orignal 2025-02-20 21:59:24 -05:00
parent 7791b3952e
commit 9ba016259d
2 changed files with 24 additions and 18 deletions
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28
libi2pd/TransportSession.h
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2024, The PurpleI2P Project
* Copyright (c) 2013-2025, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -10,7 +10,7 @@
#define TRANSPORT_SESSION_H__
#include <inttypes.h>
#include <iostream>
#include <string.h>
#include <memory>
#include <vector>
#include <mutex>
@ -28,45 +28,51 @@ namespace transport
const size_t IPV6_HEADER_SIZE = 40;
const size_t UDP_HEADER_SIZE = 8;
template<size_t sz>
class SignedData
{
public:
SignedData () {}
SignedData (): m_Size(0) {}
SignedData (const SignedData& other)
{
m_Stream << other.m_Stream.rdbuf ();
m_Size = other.Size;
memcpy (m_Buf, other.m_Buf, m_Size);
}
void Reset ()
{
m_Stream.str("");
m_Size = 0;
}
void Insert (const uint8_t * buf, size_t len)
size_t Insert (const uint8_t * buf, size_t len)
{
m_Stream.write ((char *)buf, len);
if (m_Size + len > sz) len = sz - m_Size;
memcpy (m_Buf + m_Size, buf, len);
m_Size += len;
return len;
}
template<typename T>
void Insert (T t)
{
m_Stream.write ((char *)&t, sizeof (T));
Insert ((const uint8_t *)&t, sizeof (T));
}
bool Verify (std::shared_ptr<const i2p::data::IdentityEx> ident, const uint8_t * signature) const
{
return ident->Verify ((const uint8_t *)m_Stream.str ().c_str (), m_Stream.str ().size (), signature);
return ident->Verify (m_Buf, m_Size, signature);
}
void Sign (const i2p::data::PrivateKeys& keys, uint8_t * signature) const
{
keys.Sign ((const uint8_t *)m_Stream.str ().c_str (), m_Stream.str ().size (), signature);
keys.Sign (m_Buf, m_Size, signature);
}
private:
std::stringstream m_Stream;
uint8_t m_Buf[sz];
size_t m_Size;
};
const int64_t TRANSPORT_SESSION_SLOWNESS_THRESHOLD = 500; // in milliseconds