blob: 35bb48fab40e195aea2351e1b2a8d31ff42338d9 [file] [log] [blame]
// 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_network_session.h"
#include <inttypes.h>
#include <utility>
#include "base/atomic_sequence_num.h"
#include "base/compiler_specific.h"
#include "base/debug/stack_trace.h"
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/trace_event/memory_allocator_dump.h"
#include "base/trace_event/memory_dump_request_args.h"
#include "base/trace_event/process_memory_dump.h"
#include "base/values.h"
#include "net/http/http_auth_handler_factory.h"
#include "net/http/http_response_body_drainer.h"
#include "net/http/http_stream_factory.h"
#include "net/http/url_security_manager.h"
#include "net/proxy_resolution/proxy_resolution_service.h"
#include "net/quic/quic_crypto_client_stream_factory.h"
#include "net/quic/quic_stream_factory.h"
#include "net/socket/client_socket_factory.h"
#include "net/socket/client_socket_pool_manager_impl.h"
#include "net/socket/next_proto.h"
#include "net/socket/ssl_client_socket.h"
#include "net/socket/websocket_endpoint_lock_manager.h"
#include "net/spdy/spdy_session_pool.h"
#include "net/third_party/quic/core/crypto/quic_random.h"
#include "net/third_party/quic/core/quic_packets.h"
#include "net/third_party/quic/core/quic_tag.h"
#include "net/third_party/quic/core/quic_utils.h"
#include "net/third_party/quic/platform/impl/quic_chromium_clock.h"
namespace net {
namespace {
base::AtomicSequenceNumber g_next_shard_id;
std::unique_ptr<ClientSocketPoolManager> CreateSocketPoolManager(
HttpNetworkSession::SocketPoolType pool_type,
const HttpNetworkSession::Context& context,
const std::string& ssl_session_cache_shard,
WebSocketEndpointLockManager* websocket_endpoint_lock_manager) {
// TODO(yutak): Differentiate WebSocket pool manager and allow more
// simultaneous connections for WebSockets.
return std::make_unique<ClientSocketPoolManagerImpl>(
context.net_log,
context.client_socket_factory ? context.client_socket_factory
: ClientSocketFactory::GetDefaultFactory(),
context.socket_performance_watcher_factory,
context.network_quality_estimator, context.host_resolver,
context.cert_verifier, context.channel_id_service,
context.transport_security_state, context.cert_transparency_verifier,
context.ct_policy_enforcer, ssl_session_cache_shard,
context.ssl_config_service, websocket_endpoint_lock_manager, pool_type);
}
} // unnamed namespace
// The maximum receive window sizes for HTTP/2 sessions and streams.
const int32_t kSpdySessionMaxRecvWindowSize = 15 * 1024 * 1024; // 15 MB
const int32_t kSpdyStreamMaxRecvWindowSize = 6 * 1024 * 1024; // 6 MB
namespace {
// Keep all HTTP2 parameters in |http2_settings|, even the ones that are not
// implemented, to be sent to the server.
// Set default values for settings that |http2_settings| does not specify.
spdy::SettingsMap AddDefaultHttp2Settings(spdy::SettingsMap http2_settings) {
// Set default values only if |http2_settings| does not have
// a value set for given setting.
auto it = http2_settings.find(spdy::SETTINGS_HEADER_TABLE_SIZE);
if (it == http2_settings.end())
http2_settings[spdy::SETTINGS_HEADER_TABLE_SIZE] = kSpdyMaxHeaderTableSize;
it = http2_settings.find(spdy::SETTINGS_MAX_CONCURRENT_STREAMS);
if (it == http2_settings.end())
http2_settings[spdy::SETTINGS_MAX_CONCURRENT_STREAMS] =
kSpdyMaxConcurrentPushedStreams;
it = http2_settings.find(spdy::SETTINGS_INITIAL_WINDOW_SIZE);
if (it == http2_settings.end())
http2_settings[spdy::SETTINGS_INITIAL_WINDOW_SIZE] =
kSpdyStreamMaxRecvWindowSize;
return http2_settings;
}
} // unnamed namespace
HttpNetworkSession::Params::Params()
: enable_server_push_cancellation(false),
ignore_certificate_errors(false),
testing_fixed_http_port(0),
testing_fixed_https_port(0),
tcp_fast_open_mode(TcpFastOpenMode::DISABLED),
enable_user_alternate_protocol_ports(false),
enable_spdy_ping_based_connection_checking(true),
enable_http2(true),
spdy_session_max_recv_window_size(kSpdySessionMaxRecvWindowSize),
time_func(&base::TimeTicks::Now),
enable_http2_alternative_service(false),
enable_websocket_over_http2(false),
enable_quic(false),
quic_max_packet_length(quic::kDefaultMaxPacketSize),
quic_max_server_configs_stored_in_properties(0u),
quic_enable_socket_recv_optimization(false),
mark_quic_broken_when_network_blackholes(false),
retry_without_alt_svc_on_quic_errors(true),
support_ietf_format_quic_altsvc(false),
quic_close_sessions_on_ip_change(false),
quic_goaway_sessions_on_ip_change(false),
quic_idle_connection_timeout_seconds(kIdleConnectionTimeoutSeconds),
quic_reduced_ping_timeout_seconds(quic::kPingTimeoutSecs),
quic_max_time_before_crypto_handshake_seconds(
quic::kMaxTimeForCryptoHandshakeSecs),
quic_max_idle_time_before_crypto_handshake_seconds(
quic::kInitialIdleTimeoutSecs),
quic_migrate_sessions_on_network_change_v2(false),
quic_migrate_sessions_early_v2(false),
quic_retry_on_alternate_network_before_handshake(false),
quic_race_stale_dns_on_connection(false),
quic_go_away_on_path_degrading(false),
quic_max_time_on_non_default_network(
base::TimeDelta::FromSeconds(kMaxTimeOnNonDefaultNetworkSecs)),
quic_max_migrations_to_non_default_network_on_write_error(
kMaxMigrationsToNonDefaultNetworkOnWriteError),
quic_max_migrations_to_non_default_network_on_path_degrading(
kMaxMigrationsToNonDefaultNetworkOnPathDegrading),
quic_allow_server_migration(false),
quic_allow_remote_alt_svc(true),
quic_disable_bidirectional_streams(false),
quic_force_hol_blocking(false),
quic_race_cert_verification(false),
quic_estimate_initial_rtt(false),
quic_headers_include_h2_stream_dependency(false),
enable_channel_id(false),
http_09_on_non_default_ports_enabled(false),
disable_idle_sockets_close_on_memory_pressure(false) {
quic_supported_versions.push_back(quic::QUIC_VERSION_43);
}
HttpNetworkSession::Params::Params(const Params& other) = default;
HttpNetworkSession::Params::~Params() = default;
HttpNetworkSession::Context::Context()
: client_socket_factory(nullptr),
host_resolver(nullptr),
cert_verifier(nullptr),
channel_id_service(nullptr),
transport_security_state(nullptr),
cert_transparency_verifier(nullptr),
ct_policy_enforcer(nullptr),
proxy_resolution_service(nullptr),
ssl_config_service(nullptr),
http_auth_handler_factory(nullptr),
net_log(nullptr),
socket_performance_watcher_factory(nullptr),
network_quality_estimator(nullptr),
quic_clock(nullptr),
quic_random(nullptr),
quic_crypto_client_stream_factory(
QuicCryptoClientStreamFactory::GetDefaultFactory()) {}
HttpNetworkSession::Context::Context(const Context& other) = default;
HttpNetworkSession::Context::~Context() = default;
// TODO(mbelshe): Move the socket factories into HttpStreamFactory.
HttpNetworkSession::HttpNetworkSession(const Params& params,
const Context& context)
: net_log_(context.net_log),
http_server_properties_(context.http_server_properties),
cert_verifier_(context.cert_verifier),
http_auth_handler_factory_(context.http_auth_handler_factory),
proxy_resolution_service_(context.proxy_resolution_service),
ssl_config_service_(context.ssl_config_service),
websocket_endpoint_lock_manager_(
std::make_unique<WebSocketEndpointLockManager>()),
push_delegate_(nullptr),
quic_stream_factory_(
context.net_log,
context.host_resolver,
context.ssl_config_service,
context.client_socket_factory
? context.client_socket_factory
: ClientSocketFactory::GetDefaultFactory(),
context.http_server_properties,
context.cert_verifier,
context.ct_policy_enforcer,
context.transport_security_state,
context.cert_transparency_verifier,
context.socket_performance_watcher_factory,
context.quic_crypto_client_stream_factory,
context.quic_random ? context.quic_random
: quic::QuicRandom::GetInstance(),
context.quic_clock ? context.quic_clock
: quic::QuicChromiumClock::GetInstance(),
params.quic_max_packet_length,
params.quic_user_agent_id,
params.quic_max_server_configs_stored_in_properties > 0,
params.quic_close_sessions_on_ip_change,
params.quic_goaway_sessions_on_ip_change,
params.mark_quic_broken_when_network_blackholes,
params.quic_idle_connection_timeout_seconds,
params.quic_reduced_ping_timeout_seconds,
params.quic_max_time_before_crypto_handshake_seconds,
params.quic_max_idle_time_before_crypto_handshake_seconds,
params.quic_migrate_sessions_on_network_change_v2,
params.quic_migrate_sessions_early_v2,
params.quic_retry_on_alternate_network_before_handshake,
params.quic_race_stale_dns_on_connection,
params.quic_go_away_on_path_degrading,
params.quic_max_time_on_non_default_network,
params.quic_max_migrations_to_non_default_network_on_write_error,
params.quic_max_migrations_to_non_default_network_on_path_degrading,
params.quic_allow_server_migration,
params.quic_race_cert_verification,
params.quic_estimate_initial_rtt,
params.quic_headers_include_h2_stream_dependency,
params.quic_connection_options,
params.quic_client_connection_options,
params.quic_enable_socket_recv_optimization),
spdy_session_pool_(context.host_resolver,
context.ssl_config_service,
context.http_server_properties,
context.transport_security_state,
params.quic_supported_versions,
params.enable_spdy_ping_based_connection_checking,
params.support_ietf_format_quic_altsvc,
params.spdy_session_max_recv_window_size,
AddDefaultHttp2Settings(params.http2_settings),
params.greased_http2_frame,
params.time_func,
context.network_quality_estimator),
http_stream_factory_(std::make_unique<HttpStreamFactory>(this)),
params_(params),
context_(context) {
DCHECK(proxy_resolution_service_);
DCHECK(ssl_config_service_);
CHECK(http_server_properties_);
const std::string ssl_session_cache_shard =
"http_network_session/" + base::IntToString(g_next_shard_id.GetNext());
normal_socket_pool_manager_ = CreateSocketPoolManager(
NORMAL_SOCKET_POOL, context, ssl_session_cache_shard,
websocket_endpoint_lock_manager_.get());
websocket_socket_pool_manager_ = CreateSocketPoolManager(
WEBSOCKET_SOCKET_POOL, context, ssl_session_cache_shard,
websocket_endpoint_lock_manager_.get());
if (params_.enable_http2) {
next_protos_.push_back(kProtoHTTP2);
}
next_protos_.push_back(kProtoHTTP11);
http_server_properties_->SetMaxServerConfigsStoredInProperties(
params.quic_max_server_configs_stored_in_properties);
if (!params_.disable_idle_sockets_close_on_memory_pressure) {
memory_pressure_listener_.reset(
new base::MemoryPressureListener(base::BindRepeating(
&HttpNetworkSession::OnMemoryPressure, base::Unretained(this))));
}
}
HttpNetworkSession::~HttpNetworkSession() {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
response_drainers_.clear();
// TODO(bnc): CloseAllSessions() is also called in SpdySessionPool destructor,
// one of the two calls should be removed.
spdy_session_pool_.CloseAllSessions();
}
void HttpNetworkSession::AddResponseDrainer(
std::unique_ptr<HttpResponseBodyDrainer> drainer) {
DCHECK(!base::ContainsKey(response_drainers_, drainer.get()));
HttpResponseBodyDrainer* drainer_ptr = drainer.get();
response_drainers_[drainer_ptr] = std::move(drainer);
}
void HttpNetworkSession::RemoveResponseDrainer(
HttpResponseBodyDrainer* drainer) {
DCHECK(base::ContainsKey(response_drainers_, drainer));
response_drainers_[drainer].release();
response_drainers_.erase(drainer);
}
TransportClientSocketPool* HttpNetworkSession::GetTransportSocketPool(
SocketPoolType pool_type) {
return GetSocketPoolManager(pool_type)->GetTransportSocketPool();
}
SSLClientSocketPool* HttpNetworkSession::GetSSLSocketPool(
SocketPoolType pool_type) {
return GetSocketPoolManager(pool_type)->GetSSLSocketPool();
}
SOCKSClientSocketPool* HttpNetworkSession::GetSocketPoolForSOCKSProxy(
SocketPoolType pool_type,
const HostPortPair& socks_proxy) {
return GetSocketPoolManager(pool_type)->GetSocketPoolForSOCKSProxy(
socks_proxy);
}
HttpProxyClientSocketPool* HttpNetworkSession::GetSocketPoolForHTTPProxy(
SocketPoolType pool_type,
const HostPortPair& http_proxy) {
return GetSocketPoolManager(pool_type)->GetSocketPoolForHTTPProxy(http_proxy);
}
SSLClientSocketPool* HttpNetworkSession::GetSocketPoolForSSLWithProxy(
SocketPoolType pool_type,
const HostPortPair& proxy_server) {
return GetSocketPoolManager(pool_type)->GetSocketPoolForSSLWithProxy(
proxy_server);
}
std::unique_ptr<base::Value> HttpNetworkSession::SocketPoolInfoToValue() const {
// TODO(yutak): Should merge values from normal pools and WebSocket pools.
return normal_socket_pool_manager_->SocketPoolInfoToValue();
}
std::unique_ptr<base::Value> HttpNetworkSession::SpdySessionPoolInfoToValue()
const {
return spdy_session_pool_.SpdySessionPoolInfoToValue();
}
std::unique_ptr<base::Value> HttpNetworkSession::QuicInfoToValue() const {
std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
dict->Set("sessions", quic_stream_factory_.QuicStreamFactoryInfoToValue());
dict->SetBoolean("quic_enabled", IsQuicEnabled());
auto connection_options(std::make_unique<base::ListValue>());
for (const auto& option : params_.quic_connection_options)
connection_options->AppendString(quic::QuicTagToString(option));
dict->Set("connection_options", std::move(connection_options));
auto supported_versions(std::make_unique<base::ListValue>());
for (const auto& version : params_.quic_supported_versions)
supported_versions->AppendString(QuicVersionToString(version));
dict->Set("supported_versions", std::move(supported_versions));
auto origins_to_force_quic_on(std::make_unique<base::ListValue>());
for (const auto& origin : params_.origins_to_force_quic_on)
origins_to_force_quic_on->AppendString(origin.ToString());
dict->Set("origins_to_force_quic_on", std::move(origins_to_force_quic_on));
dict->SetInteger("max_packet_length", params_.quic_max_packet_length);
dict->SetInteger("max_server_configs_stored_in_properties",
params_.quic_max_server_configs_stored_in_properties);
dict->SetInteger("idle_connection_timeout_seconds",
params_.quic_idle_connection_timeout_seconds);
dict->SetInteger("reduced_ping_timeout_seconds",
params_.quic_reduced_ping_timeout_seconds);
dict->SetBoolean("mark_quic_broken_when_network_blackholes",
params_.mark_quic_broken_when_network_blackholes);
dict->SetBoolean("retry_without_alt_svc_on_quic_errors",
params_.retry_without_alt_svc_on_quic_errors);
dict->SetBoolean("race_cert_verification",
params_.quic_race_cert_verification);
dict->SetBoolean("disable_bidirectional_streams",
params_.quic_disable_bidirectional_streams);
dict->SetBoolean("close_sessions_on_ip_change",
params_.quic_close_sessions_on_ip_change);
dict->SetBoolean("goaway_sessions_on_ip_change",
params_.quic_goaway_sessions_on_ip_change);
dict->SetBoolean("migrate_sessions_on_network_change_v2",
params_.quic_migrate_sessions_on_network_change_v2);
dict->SetBoolean("migrate_sessions_early_v2",
params_.quic_migrate_sessions_early_v2);
dict->SetBoolean("retry_on_alternate_network_before_handshake",
params_.quic_retry_on_alternate_network_before_handshake);
dict->SetBoolean("race_stale_dns_on_connection",
params_.quic_race_stale_dns_on_connection);
dict->SetBoolean("go_away_on_path_degrading",
params_.quic_go_away_on_path_degrading);
dict->SetInteger("max_time_on_non_default_network_seconds",
params_.quic_max_time_on_non_default_network.InSeconds());
dict->SetInteger(
"max_num_migrations_to_non_default_network_on_write_error",
params_.quic_max_migrations_to_non_default_network_on_write_error);
dict->SetInteger(
"max_num_migrations_to_non_default_network_on_path_degrading",
params_.quic_max_migrations_to_non_default_network_on_path_degrading);
dict->SetBoolean("allow_server_migration",
params_.quic_allow_server_migration);
dict->SetBoolean("estimate_initial_rtt", params_.quic_estimate_initial_rtt);
dict->SetBoolean("force_hol_blocking", params_.quic_force_hol_blocking);
dict->SetBoolean("server_push_cancellation",
params_.enable_server_push_cancellation);
return std::move(dict);
}
void HttpNetworkSession::CloseAllConnections() {
normal_socket_pool_manager_->FlushSocketPoolsWithError(ERR_ABORTED);
websocket_socket_pool_manager_->FlushSocketPoolsWithError(ERR_ABORTED);
spdy_session_pool_.CloseCurrentSessions(ERR_ABORTED);
quic_stream_factory_.CloseAllSessions(ERR_ABORTED, quic::QUIC_INTERNAL_ERROR);
}
void HttpNetworkSession::CloseIdleConnections() {
normal_socket_pool_manager_->CloseIdleSockets();
websocket_socket_pool_manager_->CloseIdleSockets();
spdy_session_pool_.CloseCurrentIdleSessions();
}
bool HttpNetworkSession::IsProtocolEnabled(NextProto protocol) const {
switch (protocol) {
case kProtoUnknown:
NOTREACHED();
return false;
case kProtoHTTP11:
return true;
case kProtoHTTP2:
return params_.enable_http2;
case kProtoQUIC:
return IsQuicEnabled();
}
NOTREACHED();
return false;
}
void HttpNetworkSession::SetServerPushDelegate(
std::unique_ptr<ServerPushDelegate> push_delegate) {
DCHECK(push_delegate);
if (!params_.enable_server_push_cancellation || push_delegate_)
return;
push_delegate_ = std::move(push_delegate);
spdy_session_pool_.set_server_push_delegate(push_delegate_.get());
quic_stream_factory_.set_server_push_delegate(push_delegate_.get());
}
void HttpNetworkSession::GetAlpnProtos(NextProtoVector* alpn_protos) const {
*alpn_protos = next_protos_;
}
void HttpNetworkSession::GetSSLConfig(const HttpRequestInfo& request,
SSLConfig* server_config,
SSLConfig* proxy_config) const {
ssl_config_service_->GetSSLConfig(server_config);
GetAlpnProtos(&server_config->alpn_protos);
*proxy_config = *server_config;
if (request.privacy_mode == PRIVACY_MODE_ENABLED) {
server_config->channel_id_enabled = false;
} else {
server_config->channel_id_enabled = params_.enable_channel_id;
proxy_config->channel_id_enabled = params_.enable_channel_id;
}
}
void HttpNetworkSession::DumpMemoryStats(
base::trace_event::ProcessMemoryDump* pmd,
const std::string& parent_absolute_name) const {
std::string name = base::StringPrintf("net/http_network_session_0x%" PRIxPTR,
reinterpret_cast<uintptr_t>(this));
base::trace_event::MemoryAllocatorDump* http_network_session_dump =
pmd->GetAllocatorDump(name);
if (http_network_session_dump == nullptr) {
http_network_session_dump = pmd->CreateAllocatorDump(name);
normal_socket_pool_manager_->DumpMemoryStats(
pmd, http_network_session_dump->absolute_name());
spdy_session_pool_.DumpMemoryStats(
pmd, http_network_session_dump->absolute_name());
if (http_stream_factory_) {
http_stream_factory_->DumpMemoryStats(
pmd, http_network_session_dump->absolute_name());
}
quic_stream_factory_.DumpMemoryStats(
pmd, http_network_session_dump->absolute_name());
}
// Create an empty row under parent's dump so size can be attributed correctly
// if |this| is shared between URLRequestContexts.
base::trace_event::MemoryAllocatorDump* empty_row_dump =
pmd->CreateAllocatorDump(base::StringPrintf(
"%s/http_network_session", parent_absolute_name.c_str()));
pmd->AddOwnershipEdge(empty_row_dump->guid(),
http_network_session_dump->guid());
}
bool HttpNetworkSession::IsQuicEnabled() const {
return params_.enable_quic;
}
void HttpNetworkSession::DisableQuic() {
params_.enable_quic = false;
}
ClientSocketPoolManager* HttpNetworkSession::GetSocketPoolManager(
SocketPoolType pool_type) {
switch (pool_type) {
case NORMAL_SOCKET_POOL:
return normal_socket_pool_manager_.get();
case WEBSOCKET_SOCKET_POOL:
return websocket_socket_pool_manager_.get();
default:
NOTREACHED();
break;
}
return NULL;
}
void HttpNetworkSession::OnMemoryPressure(
base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level) {
DCHECK(!params_.disable_idle_sockets_close_on_memory_pressure);
switch (memory_pressure_level) {
case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_NONE:
break;
case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE:
case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL:
CloseIdleConnections();
break;
}
}
} // namespace net