1 // Copyright (c) 2012 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 9 namespace base { 10 11 void Base64Encode(const StringPiece& input, std::string* output) { 12 std::string temp; 13 temp.resize(modp_b64_encode_len(input.size())); // makes room for null byte 14 15 // modp_b64_encode_len() returns at least 1, so temp[0] is safe to use. 16 size_t output_size = modp_b64_encode(&(temp[0]), input.data(), input.size()); 17 18 temp.resize(output_size); // strips off null byte 19 output->swap(temp); 20 } 21 22 bool Base64Decode(const StringPiece& input, std::string* output) { 23 std::string temp; 24 temp.resize(modp_b64_decode_len(input.size())); 25 26 // does not null terminate result since result is binary data! 27 size_t input_size = input.size(); 28 size_t output_size = modp_b64_decode(&(temp[0]), input.data(), input_size); 29 if (output_size == MODP_B64_ERROR) 30 return false; 31 32 temp.resize(output_size); 33 output->swap(temp); 34 return true; 35 } 36 37 } // namespace base 38
