Method base64ToArrayBuffer

cpp/QuickBase64Impl.cpp:77–109

}

jsi::Object QuickBase64Impl::base64ToArrayBuffer(
  jsi::Runtime& rt,
  jsi::String b64,
  bool removeLinebreaks
) {
  try {
    std::string input;
    auto cb = [&input](bool ascii, const void* data, size_t num) {
      input.reserve(input.size() + num);
      if (ascii) {
        input.append(static_cast<const char*>(data), num);
      } else {
        const auto* u16 = static_cast<const char16_t*>(data);
        for (size_t i = 0; i < num; ++i) {
          input.push_back(static_cast<char>(u16[i]));
        }
      }
    };
    b64.getStringData(rt, cb);
    if (removeLinebreaks) {
      input.erase(std::remove(input.begin(), input.end(), '\n'), input.end());
    } else if (input.find('\n') != std::string::npos) {
      throw std::runtime_error("Input is not valid base64-encoded data");
    }
    std::string decoded = decodeBase64(input);
    auto buf = std::make_shared<DecodedBuffer>(std::move(decoded));
    return jsi::ArrayBuffer(rt, std::move(buf));
  } catch (const std::runtime_error& e) {
    throw jsi::JSError(rt, e.what());
  } catch (...) {
    throw jsi::JSError(rt, "unknown decoding error");
  }
}

}