net/quic/properties_based_quic_server_info.cc

   1 // Copyright 2015 The Chromium Authors
   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/properties_based_quic_server_info.h"
   6
   7 #include "base/base64.h"
   8 #include "base/metrics/histogram_macros.h"
   9 #include "net/base/net_errors.h"
  10 #include "net/http/http_server_properties.h"
  11
  12 using std::string;
  13
  14 namespace {
  15
  16 void RecordQuicServerInfoFailure(net::QuicServerInfo::FailureReason failure) {
  17   UMA_HISTOGRAM_ENUMERATION(
  18       "Net.QuicDiskCache.FailureReason.PropertiesBasedCache", failure,
  19       net::QuicServerInfo::NUM_OF_FAILURES);
  20 }
  21
  22 }  // namespace
  23
  24 namespace net {
  25
  26 PropertiesBasedQuicServerInfo::PropertiesBasedQuicServerInfo(
  27     const quic::QuicServerId& server_id,
  28     const NetworkAnonymizationKey& network_anonymization_key,
  29     HttpServerProperties* http_server_properties)
  30     : QuicServerInfo(server_id),
  31       network_anonymization_key_(network_anonymization_key),
  32       http_server_properties_(http_server_properties) {
  33   DCHECK(http_server_properties_);
  34 }
  35
  36 PropertiesBasedQuicServerInfo::~PropertiesBasedQuicServerInfo() = default;
  37
  38 bool PropertiesBasedQuicServerInfo::Load() {
  39   const string* data = http_server_properties_->GetQuicServerInfo(
  40       server_id_, network_anonymization_key_);
  41   string decoded;
  42   if (!data) {
  43     RecordQuicServerInfoFailure(PARSE_NO_DATA_FAILURE);
  44     return false;
  45   }
  46   if (!base::Base64Decode(*data, &decoded)) {
  47     RecordQuicServerInfoFailure(PARSE_DATA_DECODE_FAILURE);
  48     return false;
  49   }
  50   if (!Parse(decoded)) {
  51     RecordQuicServerInfoFailure(PARSE_FAILURE);
  52     return false;
  53   }
  54   return true;
  55 }
  56
  57 void PropertiesBasedQuicServerInfo::Persist() {
  58   string encoded;
  59   base::Base64Encode(Serialize(), &encoded);
  60   http_server_properties_->SetQuicServerInfo(
  61       server_id_, network_anonymization_key_, encoded);
  62 }
  63
  64 }  // namespace net