| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/token.h" |
| |
| #include <inttypes.h> |
| |
| #include "base/pickle.h" |
| #include "base/rand_util.h" |
| #include "base/strings/stringprintf.h" |
| #include "third_party/abseil-cpp/absl/types/optional.h" |
| |
| namespace base { |
| |
| // static |
| Token Token::CreateRandom() { |
| Token token; |
| |
| // Use base::RandBytes instead of crypto::RandBytes, because crypto calls the |
| // base version directly, and to prevent the dependency from base/ to crypto/. |
| base::RandBytes(&token, sizeof(token)); |
| return token; |
| } |
| |
| std::string Token::ToString() const { |
| return base::StringPrintf("%016" PRIX64 "%016" PRIX64, high_, low_); |
| } |
| |
| void WriteTokenToPickle(Pickle* pickle, const Token& token) { |
| pickle->WriteUInt64(token.high()); |
| pickle->WriteUInt64(token.low()); |
| } |
| |
| absl::optional<Token> ReadTokenFromPickle(PickleIterator* pickle_iterator) { |
| uint64_t high; |
| if (!pickle_iterator->ReadUInt64(&high)) |
| return absl::nullopt; |
| |
| uint64_t low; |
| if (!pickle_iterator->ReadUInt64(&low)) |
| return absl::nullopt; |
| |
| return Token(high, low); |
| } |
| |
| } // namespace base |