mirror of https://github.com/PurpleI2P/i2pd
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
124 lines
2.7 KiB
C++
124 lines
2.7 KiB
C++
#ifndef BASE_H__
|
|
#define BASE_H__
|
|
|
|
#include <inttypes.h>
|
|
#include <string.h>
|
|
#include <string>
|
|
#include <zlib.h>
|
|
|
|
namespace i2p
|
|
{
|
|
namespace data
|
|
{
|
|
size_t ByteStreamToBase64 (const uint8_t * InBuffer, size_t InCount, char * OutBuffer, size_t len);
|
|
size_t Base64ToByteStream (const char * InBuffer, size_t InCount, uint8_t * OutBuffer, size_t len );
|
|
const char * GetBase64SubstitutionTable ();
|
|
|
|
size_t Base32ToByteStream (const char * inBuf, size_t len, uint8_t * outBuf, size_t outLen);
|
|
size_t ByteStreamToBase32 (const uint8_t * InBuf, size_t len, char * outBuf, size_t outLen);
|
|
|
|
template<int sz>
|
|
class Tag
|
|
{
|
|
public:
|
|
|
|
Tag (const uint8_t * buf) { memcpy (m_Buf, buf, sz); };
|
|
Tag (const Tag<sz>& ) = default;
|
|
#ifndef _WIN32 // FIXME!!! msvs 2013 can't compile it
|
|
Tag (Tag<sz>&& ) = default;
|
|
#endif
|
|
Tag () = default;
|
|
|
|
Tag<sz>& operator= (const Tag<sz>& ) = default;
|
|
#ifndef _WIN32
|
|
Tag<sz>& operator= (Tag<sz>&& ) = default;
|
|
#endif
|
|
|
|
uint8_t * operator()() { return m_Buf; };
|
|
const uint8_t * operator()() const { return m_Buf; };
|
|
|
|
operator uint8_t * () { return m_Buf; };
|
|
operator const uint8_t * () const { return m_Buf; };
|
|
|
|
const uint64_t * GetLL () const { return ll; };
|
|
|
|
bool operator== (const Tag<sz>& other) const { return !memcmp (m_Buf, other.m_Buf, sz); };
|
|
bool operator< (const Tag<sz>& other) const { return memcmp (m_Buf, other.m_Buf, sz) < 0; };
|
|
|
|
bool IsZero () const
|
|
{
|
|
for (int i = 0; i < sz/8; i++)
|
|
if (ll[i]) return false;
|
|
return true;
|
|
}
|
|
|
|
std::string ToBase64 () const
|
|
{
|
|
char str[sz*2];
|
|
int l = i2p::data::ByteStreamToBase64 (m_Buf, sz, str, sz*2);
|
|
str[l] = 0;
|
|
return std::string (str);
|
|
}
|
|
|
|
std::string ToBase32 () const
|
|
{
|
|
char str[sz*2];
|
|
int l = i2p::data::ByteStreamToBase32 (m_Buf, sz, str, sz*2);
|
|
str[l] = 0;
|
|
return std::string (str);
|
|
}
|
|
|
|
void FromBase32 (const std::string& s)
|
|
{
|
|
i2p::data::Base32ToByteStream (s.c_str (), s.length (), m_Buf, sz);
|
|
}
|
|
|
|
void FromBase64 (const std::string& s)
|
|
{
|
|
i2p::data::Base64ToByteStream (s.c_str (), s.length (), m_Buf, sz);
|
|
}
|
|
|
|
private:
|
|
|
|
union // 8 bytes alignment
|
|
{
|
|
uint8_t m_Buf[sz];
|
|
uint64_t ll[sz/8];
|
|
};
|
|
};
|
|
|
|
class GzipInflator
|
|
{
|
|
public:
|
|
|
|
GzipInflator ();
|
|
~GzipInflator ();
|
|
|
|
size_t Inflate (const uint8_t * in, size_t inLen, uint8_t * out, size_t outLen);
|
|
|
|
private:
|
|
|
|
z_stream m_Inflator;
|
|
bool m_IsDirty;
|
|
};
|
|
|
|
class GzipDeflator
|
|
{
|
|
public:
|
|
|
|
GzipDeflator ();
|
|
~GzipDeflator ();
|
|
|
|
void SetCompressionLevel (int level);
|
|
size_t Deflate (const uint8_t * in, size_t inLen, uint8_t * out, size_t outLen);
|
|
|
|
private:
|
|
|
|
z_stream m_Deflator;
|
|
bool m_IsDirty;
|
|
};
|
|
}
|
|
}
|
|
|
|
#endif
|