Function extractIdFromRequest

3rdparty/libprocess/src/memory_profiler.cpp:338–360

TODO(bevers): Implement `http::Request::extractFromRequest (string key)` instead of having this here.

// TODO(bevers): Implement `http::Request::extractFromRequest<T>(string key)`
// instead of having this here.
Result<time_t> extractIdFromRequest(const process::http::Request& request)
{
  Option<string> idParameter = request.url.query.get("id");
  if (idParameter.isNone()) {
    return None();
  }

  // Since `strtoll()` can legitimately return any value, we have to detect
  // errors by checking if `errno` was set during the call.
  errno = 0;
  char* endptr;
  int base = 10;
  long long parsed = std::strtoll(idParameter->c_str(), &endptr, base);
  if (errno) {
    return Error(strerror(errno));
  }

  if (endptr != idParameter->c_str() + idParameter->size()) {
    return Error("Garbage after parsed id");
  }

  return parsed;
}

}  // namespace {