mirror of
https://github.com/PurpleI2P/i2pd.git
synced 2025-03-20 08:16:38 +01:00
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
/*
|
|
* Copyright (c) 2013-2025, The PurpleI2P Project
|
|
*
|
|
* This file is part of Purple i2pd project and licensed under BSD3
|
|
*
|
|
* See full license text in LICENSE file at top of project tree
|
|
*/
|
|
|
|
#ifndef BASE_H__
|
|
#define BASE_H__
|
|
|
|
#include <inttypes.h>
|
|
#include <string>
|
|
#include <string_view>
|
|
#include <cstdlib>
|
|
|
|
namespace i2p
|
|
{
|
|
namespace data
|
|
{
|
|
std::string ByteStreamToBase64 (const uint8_t * InBuffer, size_t InCount);
|
|
size_t Base64ToByteStream (std::string_view base64Str, uint8_t * OutBuffer, size_t len);
|
|
|
|
const char * GetBase32SubstitutionTable ();
|
|
const char * GetBase64SubstitutionTable ();
|
|
constexpr bool IsBase64 (char ch)
|
|
{
|
|
return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9') || ch == '-' || ch == '~';
|
|
}
|
|
|
|
size_t Base32ToByteStream (std::string_view base32Str, uint8_t * outBuf, size_t outLen);
|
|
std::string ByteStreamToBase32 (const uint8_t * inBuf, size_t len);
|
|
constexpr bool IsBase32 (char ch)
|
|
{
|
|
return (ch >= 'a' && ch <= 'z') || (ch >= '2' && ch <= '7');
|
|
}
|
|
|
|
/**
|
|
* Compute the size for a buffer to contain encoded base64 given that the size of the input is input_size bytes
|
|
*/
|
|
inline size_t Base64EncodingBufferSize(size_t input_size)
|
|
{
|
|
auto d = std::div (input_size, 3);
|
|
if (d.rem) d.quot++;
|
|
return 4 * d.quot;
|
|
}
|
|
|
|
std::string ToBase64Standard (std::string_view in); // using standard table, for Proxy-Authorization
|
|
|
|
} // data
|
|
} // i2p
|
|
|
|
#endif
|