mirror of
https://github.com/savoirfairelinux/opendht.git
synced 2026-11-08 12:28:42 +00:00
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
// Copyright (c) 2014-2026 Savoir-faire Linux Inc.
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// SPDX-License-Identifier: MIT
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#include "base64.h"
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#include "utils.h"
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#include <simdutf.h>
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#include <vector>
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#include <cstdint>
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#include <cstdlib>
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#include <stdexcept>
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namespace dht {
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using namespace std::literals;
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std::string
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base64_encode(const std::vector<unsigned char>& str)
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{
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std::string buffer(simdutf::base64_length_from_binary(str.size()), '\0');
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simdutf::binary_to_base64((const char*) str.data(), str.size(), buffer.data());
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return buffer;
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}
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std::vector<unsigned char>
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base64_decode(std::string_view str)
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{
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std::vector<unsigned char> buffer(simdutf::maximal_binary_length_from_base64(str.data(), str.size()));
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simdutf::result r = simdutf::base64_to_binary(str.data(), str.size(), (char*) buffer.data());
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if (r.error) {
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throw std::invalid_argument(concat("Invalid base64 input: "sv, simdutf::error_to_string(r.error)));
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} else {
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buffer.resize(r.count);
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}
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return buffer;
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}
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std::vector<unsigned char>
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base64_default_or_url_decode(std::string_view str)
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{
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std::vector<unsigned char> buffer(simdutf::maximal_binary_length_from_base64(str.data(), str.size()));
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simdutf::result r = simdutf::base64_to_binary(str.data(),
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str.size(),
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(char*) buffer.data(),
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simdutf::base64_options::base64_default_or_url);
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if (r.error) {
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throw std::invalid_argument(concat("Invalid base64 input: "sv, simdutf::error_to_string(r.error)));
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} else {
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buffer.resize(r.count);
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}
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return buffer;
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}
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} // namespace dht
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