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#ifndef OPENTRACING_MOCKTRACER_BASE64_H
#define OPENTRACING_MOCKTRACER_BASE64_H
#include <opentracing/version.h>
#include <cstdint>
#include <string>
namespace opentracing {
BEGIN_OPENTRACING_ABI_NAMESPACE
namespace mocktracer {
class Base64 {
public:
/**
* Base64 encode an input char buffer with a given length.
* @param input char array to encode.
* @param length of the input array.
*/
static std::string encode(const char* input, uint64_t length);
/**
* Base64 decode an input string.
* @param input char array to decode.
* @param length of the input array.
*
* Note, decoded string may contain '\0' at any position, it should be treated
* as a sequence of bytes.
*/
static std::string decode(const char* input, size_t length);
private:
/**
* Helper method for encoding. This is used to encode all of the characters
* from the input string.
*/
static void encodeBase(const uint8_t cur_char, uint64_t pos, uint8_t& next_c,
std::string& ret);
/**
* Encode last characters. It appends '=' chars to the ret if input
* string length is not divisible by 3.
*/
static void encodeLast(uint64_t pos, uint8_t last_char, std::string& ret);
};
} // namespace mocktracer
END_OPENTRACING_ABI_NAMESPACE
} // namespace opentracing
#endif // OPENTRACING_MOCKTRACER_BASE64_H
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