1// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "base/base64.h"
6
7#include "third_party/modp_b64/modp_b64.h"
8
9namespace base {
10
11bool Base64Encode(const std::string& input, std::string* output) {
12  std::string temp;
13  temp.resize(modp_b64_encode_len(input.size()));  // makes room for null byte
14
15  // null terminates result since result is base64 text!
16  int input_size = static_cast<int>(input.size());
17  int output_size= modp_b64_encode(&(temp[0]), input.data(), input_size);
18  if (output_size < 0)
19    return false;
20
21  temp.resize(output_size);  // strips off null byte
22  output->swap(temp);
23  return true;
24}
25
26bool Base64Decode(const std::string& input, std::string* output) {
27  std::string temp;
28  temp.resize(modp_b64_decode_len(input.size()));
29
30  // does not null terminate result since result is binary data!
31  int input_size = static_cast<int>(input.size());
32  int output_size = modp_b64_decode(&(temp[0]), input.data(), input_size);
33  if (output_size < 0)
34    return false;
35
36  temp.resize(output_size);
37  output->swap(temp);
38  return true;
39}
40
41}  // namespace base
42