1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/*
* 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
|
