| // Copyright (c) 2012 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 "net/http/http_server_properties.h" |
| |
| #include "base/bind.h" |
| #include "base/location.h" |
| #include "base/logging.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/stl_util.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "base/time/default_clock.h" |
| #include "base/time/default_tick_clock.h" |
| #include "base/values.h" |
| #include "net/http/http_network_session.h" |
| #include "net/http/http_server_properties_manager.h" |
| #include "net/socket/ssl_client_socket.h" |
| #include "net/ssl/ssl_config.h" |
| |
| namespace net { |
| |
| namespace { |
| |
| // Time to wait before starting an update the preferences from the |
| // http_server_properties_impl_ cache. Scheduling another update during this |
| // period will be a no-op. |
| constexpr base::TimeDelta kUpdatePrefsDelay = base::TimeDelta::FromSeconds(60); |
| |
| } // namespace |
| |
| HttpServerProperties::PrefDelegate::~PrefDelegate() = default; |
| |
| HttpServerProperties::ServerInfo::ServerInfo() = default; |
| HttpServerProperties::ServerInfo::ServerInfo(const ServerInfo& server_info) = |
| default; |
| HttpServerProperties::ServerInfo::ServerInfo(ServerInfo&& server_info) = |
| default; |
| HttpServerProperties::ServerInfo::~ServerInfo() = default; |
| |
| HttpServerProperties::ServerInfoMap::ServerInfoMap() |
| : base::MRUCache<url::SchemeHostPort, ServerInfo>(kMaxServerInfoEntries) {} |
| |
| HttpServerProperties::ServerInfoMap::iterator |
| HttpServerProperties::ServerInfoMap::GetOrPut(const url::SchemeHostPort& key) { |
| auto it = Get(key); |
| if (it != end()) |
| return it; |
| return Put(key, ServerInfo()); |
| } |
| |
| HttpServerProperties::HttpServerProperties( |
| std::unique_ptr<PrefDelegate> pref_delegate, |
| NetLog* net_log, |
| const base::TickClock* tick_clock, |
| base::Clock* clock) |
| : tick_clock_(tick_clock ? tick_clock |
| : base::DefaultTickClock::GetInstance()), |
| clock_(clock ? clock : base::DefaultClock::GetInstance()), |
| is_initialized_(pref_delegate.get() == nullptr), |
| queue_write_on_load_(false), |
| properties_manager_( |
| pref_delegate |
| ? std::make_unique<HttpServerPropertiesManager>( |
| std::move(pref_delegate), |
| base::BindOnce(&HttpServerProperties::OnPrefsLoaded, |
| base::Unretained(this)), |
| kDefaultMaxQuicServerEntries, |
| net_log, |
| tick_clock_) |
| : nullptr), |
| broken_alternative_services_(kMaxRecentlyBrokenAlternativeServiceEntries, |
| this, |
| tick_clock_), |
| canonical_suffixes_({".ggpht.com", ".c.youtube.com", ".googlevideo.com", |
| ".googleusercontent.com"}), |
| quic_server_info_map_(kDefaultMaxQuicServerEntries), |
| max_server_configs_stored_in_properties_(kDefaultMaxQuicServerEntries) {} |
| |
| HttpServerProperties::~HttpServerProperties() { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| |
| if (properties_manager_) { |
| // Stop waiting for initial settings. |
| is_initialized_ = true; |
| |
| // Stop the timer if it's running, since this will write to the properties |
| // file immediately. |
| prefs_update_timer_.Stop(); |
| |
| WriteProperties(base::OnceClosure()); |
| } |
| } |
| |
| void HttpServerProperties::Clear(base::OnceClosure callback) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| server_info_map_.Clear(); |
| alternative_service_map_.Clear(); |
| broken_alternative_services_.Clear(); |
| canonical_alt_svc_map_.clear(); |
| last_quic_address_ = IPAddress(); |
| server_network_stats_map_.Clear(); |
| quic_server_info_map_.Clear(); |
| canonical_server_info_map_.clear(); |
| |
| if (properties_manager_) { |
| // Stop waiting for initial settings. |
| is_initialized_ = true; |
| // Leaving this as-is doesn't actually have any effect, if it's true, but |
| // seems best to be safe. |
| queue_write_on_load_ = false; |
| |
| // Stop the timer if it's running, since this will write to the properties |
| // file immediately. |
| prefs_update_timer_.Stop(); |
| WriteProperties(std::move(callback)); |
| } else if (callback) { |
| base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, |
| std::move(callback)); |
| } |
| } |
| |
| bool HttpServerProperties::SupportsRequestPriority( |
| const url::SchemeHostPort& server) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| if (server.host().empty()) |
| return false; |
| |
| if (GetSupportsSpdy(server)) |
| return true; |
| const AlternativeServiceInfoVector alternative_service_info_vector = |
| GetAlternativeServiceInfos(server); |
| for (const AlternativeServiceInfo& alternative_service_info : |
| alternative_service_info_vector) { |
| if (alternative_service_info.alternative_service().protocol == kProtoQUIC) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool HttpServerProperties::GetSupportsSpdy(const url::SchemeHostPort& server) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| if (server.host().empty()) |
| return false; |
| |
| auto spdy_info = server_info_map_.Get(server); |
| return spdy_info != server_info_map_.end() && |
| spdy_info->second.supports_spdy.value_or(false); |
| } |
| |
| void HttpServerProperties::SetSupportsSpdy(const url::SchemeHostPort& server, |
| bool supports_spdy) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| if (server.host().empty()) |
| return; |
| |
| auto server_info = server_info_map_.GetOrPut(server); |
| // If value is already the same as |supports_spdy|, or value is unset and |
| // |supports_spdy| is false, don't queue a write. |
| bool queue_write = |
| server_info->second.supports_spdy.value_or(false) != supports_spdy; |
| server_info->second.supports_spdy = supports_spdy; |
| |
| if (queue_write) |
| MaybeQueueWriteProperties(); |
| } |
| |
| bool HttpServerProperties::RequiresHTTP11(const HostPortPair& host_port_pair) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| if (host_port_pair.host().empty()) |
| return false; |
| |
| return (http11_servers_.find(host_port_pair) != http11_servers_.end()); |
| } |
| |
| void HttpServerProperties::SetHTTP11Required( |
| const HostPortPair& host_port_pair) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| if (host_port_pair.host().empty()) |
| return; |
| |
| http11_servers_.insert(host_port_pair); |
| MaybeQueueWriteProperties(); |
| } |
| |
| // static |
| void HttpServerProperties::ForceHTTP11(SSLConfig* ssl_config) { |
| ssl_config->alpn_protos.clear(); |
| ssl_config->alpn_protos.push_back(kProtoHTTP11); |
| } |
| |
| void HttpServerProperties::MaybeForceHTTP11(const HostPortPair& server, |
| SSLConfig* ssl_config) { |
| if (RequiresHTTP11(server)) { |
| ForceHTTP11(ssl_config); |
| } |
| } |
| |
| AlternativeServiceInfoVector HttpServerProperties::GetAlternativeServiceInfos( |
| const url::SchemeHostPort& origin) { |
| // Copy valid alternative service infos into |
| // |valid_alternative_service_infos|. |
| AlternativeServiceInfoVector valid_alternative_service_infos; |
| const base::Time now = clock_->Now(); |
| auto map_it = alternative_service_map_.Get(origin); |
| if (map_it != alternative_service_map_.end()) { |
| HostPortPair host_port_pair(origin.host(), origin.port()); |
| for (auto it = map_it->second.begin(); it != map_it->second.end();) { |
| if (it->expiration() < now) { |
| it = map_it->second.erase(it); |
| continue; |
| } |
| AlternativeService alternative_service(it->alternative_service()); |
| if (alternative_service.host.empty()) { |
| alternative_service.host = origin.host(); |
| } |
| // If the alternative service is equivalent to the origin (same host, same |
| // port, and both TCP), skip it. |
| if (host_port_pair.Equals(alternative_service.host_port_pair()) && |
| alternative_service.protocol == kProtoHTTP2) { |
| ++it; |
| continue; |
| } |
| if (alternative_service.protocol == kProtoQUIC) { |
| valid_alternative_service_infos.push_back( |
| AlternativeServiceInfo::CreateQuicAlternativeServiceInfo( |
| alternative_service, it->expiration(), |
| it->advertised_versions())); |
| } else { |
| valid_alternative_service_infos.push_back( |
| AlternativeServiceInfo::CreateHttp2AlternativeServiceInfo( |
| alternative_service, it->expiration())); |
| } |
| ++it; |
| } |
| if (map_it->second.empty()) { |
| alternative_service_map_.Erase(map_it); |
| } |
| return valid_alternative_service_infos; |
| } |
| |
| auto canonical = GetCanonicalAltSvcHost(origin); |
| if (canonical == canonical_alt_svc_map_.end()) { |
| return AlternativeServiceInfoVector(); |
| } |
| map_it = alternative_service_map_.Get(canonical->second); |
| if (map_it == alternative_service_map_.end()) { |
| return AlternativeServiceInfoVector(); |
| } |
| for (auto it = map_it->second.begin(); it != map_it->second.end();) { |
| if (it->expiration() < now) { |
| it = map_it->second.erase(it); |
| continue; |
| } |
| AlternativeService alternative_service(it->alternative_service()); |
| if (alternative_service.host.empty()) { |
| alternative_service.host = canonical->second.host(); |
| if (IsAlternativeServiceBroken(alternative_service)) { |
| ++it; |
| continue; |
| } |
| alternative_service.host = origin.host(); |
| } else if (IsAlternativeServiceBroken(alternative_service)) { |
| ++it; |
| continue; |
| } |
| if (alternative_service.protocol == kProtoQUIC) { |
| valid_alternative_service_infos.push_back( |
| AlternativeServiceInfo::CreateQuicAlternativeServiceInfo( |
| alternative_service, it->expiration(), |
| it->advertised_versions())); |
| } else { |
| valid_alternative_service_infos.push_back( |
| AlternativeServiceInfo::CreateHttp2AlternativeServiceInfo( |
| alternative_service, it->expiration())); |
| } |
| ++it; |
| } |
| if (map_it->second.empty()) { |
| alternative_service_map_.Erase(map_it); |
| } |
| return valid_alternative_service_infos; |
| } |
| |
| void HttpServerProperties::SetHttp2AlternativeService( |
| const url::SchemeHostPort& origin, |
| const AlternativeService& alternative_service, |
| base::Time expiration) { |
| DCHECK_EQ(alternative_service.protocol, kProtoHTTP2); |
| |
| SetAlternativeServices( |
| origin, |
| AlternativeServiceInfoVector( |
| /*size=*/1, AlternativeServiceInfo::CreateHttp2AlternativeServiceInfo( |
| alternative_service, expiration))); |
| } |
| |
| void HttpServerProperties::SetQuicAlternativeService( |
| const url::SchemeHostPort& origin, |
| const AlternativeService& alternative_service, |
| base::Time expiration, |
| const quic::ParsedQuicVersionVector& advertised_versions) { |
| DCHECK(alternative_service.protocol == kProtoQUIC); |
| |
| SetAlternativeServices( |
| origin, AlternativeServiceInfoVector( |
| /*size=*/1, |
| AlternativeServiceInfo::CreateQuicAlternativeServiceInfo( |
| alternative_service, expiration, advertised_versions))); |
| } |
| |
| void HttpServerProperties::SetAlternativeServices( |
| const url::SchemeHostPort& origin, |
| const AlternativeServiceInfoVector& alternative_service_info_vector) { |
| auto it = alternative_service_map_.Peek(origin); |
| |
| if (alternative_service_info_vector.empty()) { |
| RemoveAltSvcCanonicalHost(origin); |
| if (it == alternative_service_map_.end()) |
| return; |
| |
| alternative_service_map_.Erase(it); |
| MaybeQueueWriteProperties(); |
| return; |
| } |
| |
| bool need_update_pref = true; |
| if (it != alternative_service_map_.end()) { |
| DCHECK(!it->second.empty()); |
| if (it->second.size() == alternative_service_info_vector.size()) { |
| const base::Time now = clock_->Now(); |
| need_update_pref = false; |
| auto new_it = alternative_service_info_vector.begin(); |
| for (const auto& old : it->second) { |
| // Persist to disk immediately if new entry has different scheme, host, |
| // or port. |
| if (old.alternative_service() != new_it->alternative_service()) { |
| need_update_pref = true; |
| break; |
| } |
| // Also persist to disk if new expiration it more that twice as far or |
| // less than half as far in the future. |
| base::Time old_time = old.expiration(); |
| base::Time new_time = new_it->expiration(); |
| if (new_time - now > 2 * (old_time - now) || |
| 2 * (new_time - now) < (old_time - now)) { |
| need_update_pref = true; |
| break; |
| } |
| // Also persist to disk if new entry has a different list of advertised |
| // versions. |
| if (old.advertised_versions() != new_it->advertised_versions()) { |
| need_update_pref = true; |
| break; |
| } |
| ++new_it; |
| } |
| } |
| } |
| |
| const bool previously_no_alternative_services = |
| (GetAlternateProtocolIterator(origin) == alternative_service_map_.end()); |
| |
| alternative_service_map_.Put(origin, alternative_service_info_vector); |
| |
| if (previously_no_alternative_services && |
| !GetAlternativeServiceInfos(origin).empty()) { |
| // TODO(rch): Consider the case where multiple requests are started |
| // before the first completes. In this case, only one of the jobs |
| // would reach this code, whereas all of them should should have. |
| HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_MAPPING_MISSING, |
| false); |
| } |
| |
| // If this host ends with a canonical suffix, then set it as the |
| // canonical host. |
| const char* kCanonicalScheme = "https"; |
| if (origin.scheme() == kCanonicalScheme) { |
| const std::string* canonical_suffix = GetCanonicalSuffix(origin.host()); |
| if (canonical_suffix != nullptr) { |
| url::SchemeHostPort canonical_server(kCanonicalScheme, *canonical_suffix, |
| origin.port()); |
| canonical_alt_svc_map_[canonical_server] = origin; |
| } |
| } |
| |
| if (need_update_pref) |
| MaybeQueueWriteProperties(); |
| } |
| |
| void HttpServerProperties::MarkAlternativeServiceBroken( |
| const AlternativeService& alternative_service) { |
| broken_alternative_services_.MarkBroken(alternative_service); |
| MaybeQueueWriteProperties(); |
| } |
| |
| void HttpServerProperties:: |
| MarkAlternativeServiceBrokenUntilDefaultNetworkChanges( |
| const AlternativeService& alternative_service) { |
| broken_alternative_services_.MarkBrokenUntilDefaultNetworkChanges( |
| alternative_service); |
| MaybeQueueWriteProperties(); |
| } |
| |
| void HttpServerProperties::MarkAlternativeServiceRecentlyBroken( |
| const AlternativeService& alternative_service) { |
| broken_alternative_services_.MarkRecentlyBroken(alternative_service); |
| MaybeQueueWriteProperties(); |
| } |
| |
| bool HttpServerProperties::IsAlternativeServiceBroken( |
| const AlternativeService& alternative_service) const { |
| return broken_alternative_services_.IsBroken(alternative_service); |
| } |
| |
| bool HttpServerProperties::WasAlternativeServiceRecentlyBroken( |
| const AlternativeService& alternative_service) { |
| return broken_alternative_services_.WasRecentlyBroken(alternative_service); |
| } |
| |
| void HttpServerProperties::ConfirmAlternativeService( |
| const AlternativeService& alternative_service) { |
| bool old_value = IsAlternativeServiceBroken(alternative_service); |
| broken_alternative_services_.Confirm(alternative_service); |
| bool new_value = IsAlternativeServiceBroken(alternative_service); |
| |
| // For persisting, we only care about the value returned by |
| // IsAlternativeServiceBroken. If that value changes, then call persist. |
| if (old_value != new_value) |
| MaybeQueueWriteProperties(); |
| } |
| |
| void HttpServerProperties::OnDefaultNetworkChanged() { |
| bool changed = broken_alternative_services_.OnDefaultNetworkChanged(); |
| if (changed) |
| MaybeQueueWriteProperties(); |
| } |
| |
| const AlternativeServiceMap& HttpServerProperties::alternative_service_map() |
| const { |
| return alternative_service_map_; |
| } |
| |
| std::unique_ptr<base::Value> |
| HttpServerProperties::GetAlternativeServiceInfoAsValue() const { |
| const base::Time now = clock_->Now(); |
| const base::TimeTicks now_ticks = tick_clock_->NowTicks(); |
| std::unique_ptr<base::ListValue> dict_list(new base::ListValue); |
| for (const auto& alternative_service_map_item : alternative_service_map_) { |
| std::unique_ptr<base::ListValue> alternative_service_list( |
| new base::ListValue); |
| const url::SchemeHostPort& server = alternative_service_map_item.first; |
| for (const AlternativeServiceInfo& alternative_service_info : |
| alternative_service_map_item.second) { |
| std::string alternative_service_string( |
| alternative_service_info.ToString()); |
| AlternativeService alternative_service( |
| alternative_service_info.alternative_service()); |
| if (alternative_service.host.empty()) { |
| alternative_service.host = server.host(); |
| } |
| base::TimeTicks brokenness_expiration_ticks; |
| if (broken_alternative_services_.IsBroken(alternative_service, |
| &brokenness_expiration_ticks)) { |
| // Convert |brokenness_expiration| from TimeTicks to Time |
| base::Time brokenness_expiration = |
| now + (brokenness_expiration_ticks - now_ticks); |
| base::Time::Exploded exploded; |
| brokenness_expiration.LocalExplode(&exploded); |
| std::string broken_info_string = |
| " (broken until " + |
| base::StringPrintf("%04d-%02d-%02d %0d:%0d:%0d", exploded.year, |
| exploded.month, exploded.day_of_month, |
| exploded.hour, exploded.minute, |
| exploded.second) + |
| ")"; |
| alternative_service_string.append(broken_info_string); |
| } |
| alternative_service_list->AppendString(alternative_service_string); |
| } |
| if (alternative_service_list->empty()) |
| continue; |
| std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue()); |
| dict->SetString("server", server.Serialize()); |
| dict->Set("alternative_service", std::unique_ptr<base::Value>( |
| std::move(alternative_service_list))); |
| dict_list->Append(std::move(dict)); |
| } |
| return std::move(dict_list); |
| } |
| |
| bool HttpServerProperties::GetSupportsQuic(IPAddress* last_address) const { |
| if (last_quic_address_.empty()) |
| return false; |
| |
| *last_address = last_quic_address_; |
| return true; |
| } |
| |
| void HttpServerProperties::SetSupportsQuic(bool used_quic, |
| const IPAddress& address) { |
| IPAddress new_quic_address; |
| if (used_quic) |
| new_quic_address = address; |
| |
| if (new_quic_address == last_quic_address_) |
| return; |
| |
| last_quic_address_ = new_quic_address; |
| MaybeQueueWriteProperties(); |
| } |
| |
| void HttpServerProperties::SetServerNetworkStats( |
| const url::SchemeHostPort& server, |
| ServerNetworkStats stats) { |
| const ServerNetworkStats* old_stats = GetServerNetworkStats(server); |
| bool changed = !old_stats || *old_stats != stats; |
| |
| // Still need to update the MRU cache, even if the values haven't changed. |
| server_network_stats_map_.Put(server, stats); |
| |
| if (changed) |
| MaybeQueueWriteProperties(); |
| } |
| |
| void HttpServerProperties::ClearServerNetworkStats( |
| const url::SchemeHostPort& server) { |
| auto it = server_network_stats_map_.Get(server); |
| if (it != server_network_stats_map_.end()) { |
| server_network_stats_map_.Erase(it); |
| MaybeQueueWriteProperties(); |
| } |
| } |
| |
| const ServerNetworkStats* HttpServerProperties::GetServerNetworkStats( |
| const url::SchemeHostPort& server) { |
| auto it = server_network_stats_map_.Get(server); |
| if (it == server_network_stats_map_.end()) { |
| return nullptr; |
| } |
| return &it->second; |
| } |
| |
| const ServerNetworkStatsMap& HttpServerProperties::server_network_stats_map() |
| const { |
| return server_network_stats_map_; |
| } |
| |
| void HttpServerProperties::SetQuicServerInfo( |
| const quic::QuicServerId& server_id, |
| const std::string& server_info) { |
| auto it = quic_server_info_map_.Peek(server_id); |
| bool changed = |
| (it == quic_server_info_map_.end() || it->second != server_info); |
| quic_server_info_map_.Put(server_id, server_info); |
| UpdateCanonicalServerInfoMap(server_id); |
| if (changed) |
| MaybeQueueWriteProperties(); |
| } |
| |
| const std::string* HttpServerProperties::GetQuicServerInfo( |
| const quic::QuicServerId& server_id) { |
| auto it = quic_server_info_map_.Get(server_id); |
| if (it != quic_server_info_map_.end()) { |
| // Since |canonical_server_info_map_| should always map to the most |
| // recent host, update it with the one that became MRU in |
| // |quic_server_info_map_|. |
| UpdateCanonicalServerInfoMap(server_id); |
| return &it->second; |
| } |
| |
| // If the exact match for |server_id| wasn't found, check |
| // |canonical_server_info_map_| whether there is server info for a host with |
| // the same canonical host suffix. |
| auto canonical_itr = GetCanonicalServerInfoHost(server_id); |
| if (canonical_itr == canonical_server_info_map_.end()) |
| return nullptr; |
| |
| // When search in |quic_server_info_map_|, do not change the MRU order. |
| it = quic_server_info_map_.Peek(canonical_itr->second); |
| if (it != quic_server_info_map_.end()) |
| return &it->second; |
| |
| return nullptr; |
| } |
| |
| const QuicServerInfoMap& HttpServerProperties::quic_server_info_map() const { |
| return quic_server_info_map_; |
| } |
| |
| size_t HttpServerProperties::max_server_configs_stored_in_properties() const { |
| return max_server_configs_stored_in_properties_; |
| } |
| |
| void HttpServerProperties::SetMaxServerConfigsStoredInProperties( |
| size_t max_server_configs_stored_in_properties) { |
| // Do nothing if the new size is the same as the old one. |
| if (max_server_configs_stored_in_properties_ == |
| max_server_configs_stored_in_properties) { |
| return; |
| } |
| |
| max_server_configs_stored_in_properties_ = |
| max_server_configs_stored_in_properties; |
| |
| // MRUCache doesn't allow the capacity of the cache to be changed. Thus create |
| // a new map with the new size and add current elements and swap the new map. |
| quic_server_info_map_.ShrinkToSize(max_server_configs_stored_in_properties_); |
| QuicServerInfoMap temp_map(max_server_configs_stored_in_properties_); |
| // Update the |canonical_server_info_map_| as well, so it stays in sync with |
| // |quic_server_info_map_|. |
| canonical_server_info_map_ = CanonicalServerInfoMap(); |
| for (auto it = quic_server_info_map_.rbegin(); |
| it != quic_server_info_map_.rend(); ++it) { |
| temp_map.Put(it->first, it->second); |
| UpdateCanonicalServerInfoMap(it->first); |
| } |
| |
| quic_server_info_map_.Swap(temp_map); |
| if (properties_manager_) { |
| properties_manager_->set_max_server_configs_stored_in_properties( |
| max_server_configs_stored_in_properties); |
| } |
| } |
| |
| bool HttpServerProperties::IsInitialized() const { |
| return is_initialized_; |
| } |
| |
| void HttpServerProperties::OnExpireBrokenAlternativeService( |
| const AlternativeService& expired_alternative_service) { |
| // Remove every occurrence of |expired_alternative_service| from |
| // |alternative_service_map_|. |
| for (auto map_it = alternative_service_map_.begin(); |
| map_it != alternative_service_map_.end();) { |
| for (auto it = map_it->second.begin(); it != map_it->second.end();) { |
| AlternativeService alternative_service(it->alternative_service()); |
| // Empty hostname in map means hostname of key: substitute before |
| // comparing to |expired_alternative_service|. |
| if (alternative_service.host.empty()) { |
| alternative_service.host = map_it->first.host(); |
| } |
| if (alternative_service == expired_alternative_service) { |
| it = map_it->second.erase(it); |
| continue; |
| } |
| ++it; |
| } |
| // If an origin has an empty list of alternative services, then remove it |
| // from both |canonical_alt_svc_map_| and |
| // |alternative_service_map_|. |
| if (map_it->second.empty()) { |
| RemoveAltSvcCanonicalHost(map_it->first); |
| map_it = alternative_service_map_.Erase(map_it); |
| continue; |
| } |
| ++map_it; |
| } |
| } |
| |
| base::TimeDelta HttpServerProperties::GetUpdatePrefsDelayForTesting() { |
| return kUpdatePrefsDelay; |
| } |
| |
| AlternativeServiceMap::const_iterator |
| HttpServerProperties::GetAlternateProtocolIterator( |
| const url::SchemeHostPort& server) { |
| AlternativeServiceMap::const_iterator it = |
| alternative_service_map_.Get(server); |
| if (it != alternative_service_map_.end()) |
| return it; |
| |
| auto canonical = GetCanonicalAltSvcHost(server); |
| if (canonical == canonical_alt_svc_map_.end()) { |
| return alternative_service_map_.end(); |
| } |
| |
| const url::SchemeHostPort canonical_server = canonical->second; |
| it = alternative_service_map_.Get(canonical_server); |
| if (it == alternative_service_map_.end()) { |
| return alternative_service_map_.end(); |
| } |
| |
| for (const AlternativeServiceInfo& alternative_service_info : it->second) { |
| AlternativeService alternative_service( |
| alternative_service_info.alternative_service()); |
| if (alternative_service.host.empty()) { |
| alternative_service.host = canonical_server.host(); |
| } |
| if (!IsAlternativeServiceBroken(alternative_service)) { |
| return it; |
| } |
| } |
| |
| RemoveAltSvcCanonicalHost(canonical_server); |
| return alternative_service_map_.end(); |
| } |
| |
| HttpServerProperties::CanonicalAltSvcMap::const_iterator |
| HttpServerProperties::GetCanonicalAltSvcHost( |
| const url::SchemeHostPort& server) const { |
| const char* kCanonicalScheme = "https"; |
| if (server.scheme() != kCanonicalScheme) |
| return canonical_alt_svc_map_.end(); |
| |
| const std::string* canonical_suffix = GetCanonicalSuffix(server.host()); |
| if (canonical_suffix == nullptr) |
| return canonical_alt_svc_map_.end(); |
| |
| url::SchemeHostPort canonical_server(kCanonicalScheme, *canonical_suffix, |
| server.port()); |
| return canonical_alt_svc_map_.find(canonical_server); |
| } |
| |
| HttpServerProperties::CanonicalServerInfoMap::const_iterator |
| HttpServerProperties::GetCanonicalServerInfoHost( |
| const quic::QuicServerId& server) const { |
| const std::string* canonical_suffix = GetCanonicalSuffix(server.host()); |
| if (canonical_suffix == nullptr) |
| return canonical_server_info_map_.end(); |
| |
| HostPortPair canonical_pair(*canonical_suffix, server.port()); |
| return canonical_server_info_map_.find(canonical_pair); |
| } |
| |
| void HttpServerProperties::RemoveAltSvcCanonicalHost( |
| const url::SchemeHostPort& server) { |
| auto canonical = GetCanonicalAltSvcHost(server); |
| if (canonical == canonical_alt_svc_map_.end()) |
| return; |
| |
| canonical_alt_svc_map_.erase(canonical->first); |
| } |
| |
| void HttpServerProperties::UpdateCanonicalServerInfoMap( |
| const quic::QuicServerId& server) { |
| const std::string* suffix = GetCanonicalSuffix(server.host()); |
| if (suffix) { |
| HostPortPair canonical_pair(*suffix, server.port()); |
| canonical_server_info_map_[canonical_pair] = server; |
| } |
| } |
| |
| const std::string* HttpServerProperties::GetCanonicalSuffix( |
| const std::string& host) const { |
| // If this host ends with a canonical suffix, then return the canonical |
| // suffix. |
| for (const std::string& canonical_suffix : canonical_suffixes_) { |
| if (base::EndsWith(host, canonical_suffix, |
| base::CompareCase::INSENSITIVE_ASCII)) { |
| return &canonical_suffix; |
| } |
| } |
| return nullptr; |
| } |
| |
| void HttpServerProperties::OnPrefsLoaded( |
| std::unique_ptr<ServerInfoMap> server_info_map, |
| std::unique_ptr<AlternativeServiceMap> alternative_service_map, |
| std::unique_ptr<ServerNetworkStatsMap> server_network_stats_map, |
| const IPAddress& last_quic_address, |
| std::unique_ptr<QuicServerInfoMap> quic_server_info_map, |
| std::unique_ptr<BrokenAlternativeServiceList> |
| broken_alternative_service_list, |
| std::unique_ptr<RecentlyBrokenAlternativeServices> |
| recently_broken_alternative_services) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| |
| DCHECK(!is_initialized_); |
| |
| // Either all of these are nullptr, or none of them are (except the broken alt |
| // service fields). |
| if (server_info_map) { |
| OnServerInfoLoaded(std::move(server_info_map)); |
| OnAlternativeServiceServersLoaded(std::move(alternative_service_map)); |
| OnServerNetworkStatsLoaded(std::move(server_network_stats_map)); |
| OnSupportsQuicLoaded(last_quic_address); |
| OnQuicServerInfoMapLoaded(std::move(quic_server_info_map)); |
| if (recently_broken_alternative_services) { |
| DCHECK(broken_alternative_service_list); |
| OnBrokenAndRecentlyBrokenAlternativeServicesLoaded( |
| std::move(broken_alternative_service_list), |
| std::move(recently_broken_alternative_services)); |
| } |
| } |
| |
| is_initialized_ = true; |
| |
| if (queue_write_on_load_) { |
| // Leaving this as true doesn't actually have any effect, but seems best to |
| // be safe. |
| queue_write_on_load_ = false; |
| MaybeQueueWriteProperties(); |
| } |
| } |
| |
| void HttpServerProperties::OnServerInfoLoaded( |
| std::unique_ptr<ServerInfoMap> server_info_map) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| |
| // Swap in the entries from persisted data. This allows the MRU cache to be |
| // sorted based on the order of the entries in the newer in-memory cache. |
| server_info_map_.Swap(*server_info_map); |
| |
| // Add the entries from the memory cache. |
| for (auto it = server_info_map->rbegin(); it != server_info_map->rend(); |
| ++it) { |
| // If there's no corresponding old entry, add the new entry directly. |
| auto old_entry = server_info_map_.Get(it->first); |
| if (old_entry == server_info_map_.end()) { |
| server_info_map_.Put(it->first, std::move(it->second)); |
| continue; |
| } |
| |
| // Otherwise, merge the old and new entries. Prefer values from older |
| // entries. |
| if (!old_entry->second.supports_spdy.has_value()) |
| old_entry->second.supports_spdy = it->second.supports_spdy; |
| } |
| } |
| |
| void HttpServerProperties::OnAlternativeServiceServersLoaded( |
| std::unique_ptr<AlternativeServiceMap> alternative_service_map) { |
| int32_t size_diff = |
| alternative_service_map->size() - alternative_service_map_.size(); |
| if (size_diff > 0) { |
| UMA_HISTOGRAM_COUNTS_1M("Net.AlternativeServiceServers.MorePrefsEntries", |
| size_diff); |
| } else { |
| UMA_HISTOGRAM_COUNTS_1M( |
| "Net.AlternativeServiceServers.MoreOrEqualCacheEntries", -size_diff); |
| } |
| |
| // Add the entries from persisted data. |
| alternative_service_map_.Swap(*alternative_service_map); |
| |
| // Add the entries from the memory cache. |
| for (auto input_it = alternative_service_map->rbegin(); |
| input_it != alternative_service_map->rend(); ++input_it) { |
| if (alternative_service_map_.Get(input_it->first) == |
| alternative_service_map_.end()) { |
| alternative_service_map_.Put(input_it->first, input_it->second); |
| } |
| } |
| |
| // Attempt to find canonical servers. Canonical suffix only apply to HTTPS. |
| const uint16_t kCanonicalPort = 443; |
| const char* kCanonicalScheme = "https"; |
| for (const std::string& canonical_suffix : canonical_suffixes_) { |
| url::SchemeHostPort canonical_server(kCanonicalScheme, canonical_suffix, |
| kCanonicalPort); |
| // If we already have a valid canonical server, we're done. |
| if (base::Contains(canonical_alt_svc_map_, canonical_server) && |
| (alternative_service_map_.Peek( |
| canonical_alt_svc_map_[canonical_server]) != |
| alternative_service_map_.end())) { |
| continue; |
| } |
| // Now attempt to find a server which matches this origin and set it as |
| // canonical. |
| for (AlternativeServiceMap::const_iterator it = |
| alternative_service_map_.begin(); |
| it != alternative_service_map_.end(); ++it) { |
| if (base::EndsWith(it->first.host(), canonical_suffix, |
| base::CompareCase::INSENSITIVE_ASCII) && |
| it->first.scheme() == canonical_server.scheme()) { |
| canonical_alt_svc_map_[canonical_server] = it->first; |
| break; |
| } |
| } |
| } |
| } |
| |
| void HttpServerProperties::OnServerNetworkStatsLoaded( |
| std::unique_ptr<ServerNetworkStatsMap> server_network_stats_map) { |
| // Add the entries from persisted data. |
| server_network_stats_map_.Swap(*server_network_stats_map); |
| |
| // Add the entries from the memory cache. |
| for (auto it = server_network_stats_map->rbegin(); |
| it != server_network_stats_map->rend(); ++it) { |
| if (server_network_stats_map_.Get(it->first) == |
| server_network_stats_map_.end()) { |
| server_network_stats_map_.Put(it->first, it->second); |
| } |
| } |
| } |
| |
| void HttpServerProperties::OnSupportsQuicLoaded(const IPAddress& last_address) { |
| last_quic_address_ = last_address; |
| } |
| |
| void HttpServerProperties::OnQuicServerInfoMapLoaded( |
| std::unique_ptr<QuicServerInfoMap> quic_server_info_map) { |
| DCHECK_EQ(quic_server_info_map->max_size(), quic_server_info_map_.max_size()); |
| |
| // Add the entries from persisted data. |
| quic_server_info_map_.Swap(*quic_server_info_map); |
| |
| // Add the entries from the memory cache. |
| for (auto it = quic_server_info_map->rbegin(); |
| it != quic_server_info_map->rend(); ++it) { |
| if (quic_server_info_map_.Get(it->first) == quic_server_info_map_.end()) { |
| quic_server_info_map_.Put(it->first, it->second); |
| } |
| } |
| |
| // Repopulate |canonical_server_info_map_| to stay in sync with |
| // |quic_server_info_map_|. |
| canonical_server_info_map_.clear(); |
| for (auto it = quic_server_info_map_.rbegin(); |
| it != quic_server_info_map_.rend(); ++it) { |
| UpdateCanonicalServerInfoMap(it->first); |
| } |
| } |
| |
| void HttpServerProperties::OnBrokenAndRecentlyBrokenAlternativeServicesLoaded( |
| std::unique_ptr<BrokenAlternativeServiceList> |
| broken_alternative_service_list, |
| std::unique_ptr<RecentlyBrokenAlternativeServices> |
| recently_broken_alternative_services) { |
| broken_alternative_services_.SetBrokenAndRecentlyBrokenAlternativeServices( |
| std::move(broken_alternative_service_list), |
| std::move(recently_broken_alternative_services)); |
| } |
| |
| void HttpServerProperties::MaybeQueueWriteProperties() { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| |
| if (prefs_update_timer_.IsRunning() || !properties_manager_) |
| return; |
| |
| if (!is_initialized_) { |
| queue_write_on_load_ = true; |
| return; |
| } |
| |
| prefs_update_timer_.Start( |
| FROM_HERE, kUpdatePrefsDelay, |
| base::BindOnce(&HttpServerProperties::WriteProperties, |
| base::Unretained(this), base::OnceClosure())); |
| } |
| |
| void HttpServerProperties::WriteProperties(base::OnceClosure callback) const { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| DCHECK(properties_manager_); |
| |
| // |this| shouldn't be waiting to load properties cached to disk when this |
| // method is invoked, since this method will overwrite any cached properties. |
| DCHECK(is_initialized_); |
| |
| // There shouldn't be a queued update when this is run, since this method |
| // removes the need for any update to be queued. |
| DCHECK(!prefs_update_timer_.IsRunning()); |
| |
| properties_manager_->WriteToPrefs( |
| server_info_map_, alternative_service_map_, |
| base::BindRepeating(&HttpServerProperties::GetCanonicalSuffix, |
| base::Unretained(this)), |
| server_network_stats_map_, last_quic_address_, quic_server_info_map_, |
| broken_alternative_services_.broken_alternative_service_list(), |
| broken_alternative_services_.recently_broken_alternative_services(), |
| std::move(callback)); |
| } |
| |
| } // namespace net |