net/quic/crypto/source_address_token.cc

   1 // Copyright (c) 2013 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 "net/quic/crypto/source_address_token.h"
   6
   7 #include <vector>
   8
   9 #include "base/strings/string_number_conversions.h"
  10 #include "base/strings/string_split.h"
  11
  12 using std::string;
  13 using std::vector;
  14
  15 namespace net {
  16
  17 SourceAddressToken::SourceAddressToken() {
  18 }
  19
  20 SourceAddressToken::~SourceAddressToken() {
  21 }
  22
  23 string SourceAddressToken::SerializeAsString() const {
  24   string out;
  25   out.push_back(ip_.size());
  26   out.append(ip_);
  27   string time_str = base::Int64ToString(timestamp_);
  28   out.push_back(time_str.size());
  29   out.append(time_str);
  30   return out;
  31 }
  32
  33 bool SourceAddressToken::ParseFromArray(const char* plaintext,
  34                                         size_t plaintext_length) {
  35   if (plaintext_length == 0) {
  36     return false;
  37   }
  38   size_t ip_len = plaintext[0];
  39   if (plaintext_length <= 1 + ip_len) {
  40     return false;
  41   }
  42   size_t time_len = plaintext[1 + ip_len];
  43   if (plaintext_length != 1 + ip_len + 1 + time_len) {
  44     return false;
  45   }
  46
  47   string time_str(&plaintext[1 + ip_len + 1], time_len);
  48   int64 timestamp;
  49   if (!base::StringToInt64(time_str, &timestamp)) {
  50     return false;
  51   }
  52
  53   ip_.assign(&plaintext[1], ip_len);
  54   timestamp_ = timestamp;
  55   return true;
  56 }
  57
  58 }  // namespace net