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// 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.
#ifndef NET_HTTP_HTTP_NETWORK_SESSION_H_
#define NET_HTTP_HTTP_NETWORK_SESSION_H_
#include <stddef.h>
#include <stdint.h>
#include <set>
#include <string>
#include <unordered_set>
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/non_thread_safe.h"
#include "net/base/host_port_pair.h"
#include "net/base/net_export.h"
#include "net/dns/host_resolver.h"
#include "net/http/http_auth_cache.h"
#include "net/http/http_stream_factory.h"
#include "net/quic/quic_stream_factory.h"
#include "net/socket/next_proto.h"
#include "net/spdy/spdy_session_pool.h"
#include "net/ssl/ssl_client_auth_cache.h"
namespace base {
class Value;
}
namespace net {
class CTPolicyEnforcer;
class CertVerifier;
class ChannelIDService;
class ClientSocketFactory;
class ClientSocketPoolManager;
class CTVerifier;
class HostResolver;
class HttpAuthHandlerFactory;
class HttpNetworkSessionPeer;
class HttpProxyClientSocketPool;
class HttpResponseBodyDrainer;
class HttpServerProperties;
class NetLog;
class ProxyDelegate;
class ProxyService;
class QuicClock;
class QuicCryptoClientStreamFactory;
class QuicServerInfoFactory;
class SocketPerformanceWatcherFactory;
class SOCKSClientSocketPool;
class SSLClientSocketPool;
class SSLConfigService;
class TransportClientSocketPool;
class TransportSecurityState;
// This class holds session objects used by HttpNetworkTransaction objects.
class NET_EXPORT HttpNetworkSession
: NON_EXPORTED_BASE(public base::NonThreadSafe) {
public:
struct NET_EXPORT Params {
Params();
Params(const Params& other);
~Params();
ClientSocketFactory* client_socket_factory;
HostResolver* host_resolver;
CertVerifier* cert_verifier;
ChannelIDService* channel_id_service;
TransportSecurityState* transport_security_state;
CTVerifier* cert_transparency_verifier;
CTPolicyEnforcer* ct_policy_enforcer;
ProxyService* proxy_service;
SSLConfigService* ssl_config_service;
HttpAuthHandlerFactory* http_auth_handler_factory;
HttpServerProperties* http_server_properties;
NetLog* net_log;
HostMappingRules* host_mapping_rules;
SocketPerformanceWatcherFactory* socket_performance_watcher_factory;
bool ignore_certificate_errors;
uint16_t testing_fixed_http_port;
uint16_t testing_fixed_https_port;
bool enable_tcp_fast_open_for_ssl;
// Use SPDY ping frames to test for connection health after idle.
bool enable_spdy_ping_based_connection_checking;
NextProto spdy_default_protocol;
bool enable_spdy31;
bool enable_http2;
size_t spdy_session_max_recv_window_size;
size_t spdy_stream_max_recv_window_size;
// Source of time for SPDY connections.
SpdySessionPool::TimeFunc time_func;
// Whether to enable Alt-Svc entries with hostname different than that of
// the origin.
bool enable_alternative_service_with_different_host;
// Only set for tests.
// TODO(bnc) https://crbug.com/615497:
// Adapt tests to https requests, remove this member.
bool enable_alternative_service_for_insecure_origins;
// Enables NPN support. Note that ALPN is always enabled.
bool enable_npn;
// Enable setting of HTTP/2 dependencies based on priority.
bool enable_priority_dependencies;
// Enables QUIC support.
bool enable_quic;
// Disable QUIC if a connection times out with open streams.
bool disable_quic_on_timeout_with_open_streams;
// Instruct QUIC to use consistent ephemeral ports when talking to
// the same server.
bool enable_quic_port_selection;
// Disables QUIC's 0-RTT behavior.
bool quic_always_require_handshake_confirmation;
// Disables QUIC connection pooling.
bool quic_disable_connection_pooling;
// If not zero, the task to load QUIC server configs from the disk cache
// will timeout after this value multiplied by the smoothed RTT for the
// server.
float quic_load_server_info_timeout_srtt_multiplier;
// Causes QUIC to race reading the server config from disk with
// sending an inchoate CHLO.
bool quic_enable_connection_racing;
// Use non-blocking IO for UDP sockets.
bool quic_enable_non_blocking_io;
// Disables using the disk cache to store QUIC server configs.
bool quic_disable_disk_cache;
// Prefer AES-GCM to ChaCha20 even if no hardware support is present.
bool quic_prefer_aes;
// Specifies the maximum number of connections with high packet loss in
// a row after which QUIC will be disabled.
int quic_max_number_of_lossy_connections;
// Specifies packet loss rate in fraction after which a connection is
// closed and is considered as a lossy connection.
float quic_packet_loss_threshold;
// Size in bytes of the QUIC DUP socket receive buffer.
int quic_socket_receive_buffer_size;
// Delay starting a TCP connection when QUIC believes it can speak
// 0-RTT to a server.
bool quic_delay_tcp_race;
// Maximum number of server configs that are to be stored in
// HttpServerProperties, instead of the disk cache.
size_t quic_max_server_configs_stored_in_properties;
// If not empty, QUIC will be used for all connections to the set of
// origins in |origins_to_force_quic_on|.
std::set<HostPortPair> origins_to_force_quic_on;
// Source of time for QUIC connections. Will be owned by QuicStreamFactory.
QuicClock* quic_clock;
// Source of entropy for QUIC connections.
QuicRandom* quic_random;
// Limit on the size of QUIC packets.
size_t quic_max_packet_length;
// User agent description to send in the QUIC handshake.
std::string quic_user_agent_id;
bool enable_user_alternate_protocol_ports;
// Optional factory to use for creating QuicCryptoClientStreams.
QuicCryptoClientStreamFactory* quic_crypto_client_stream_factory;
// Versions of QUIC which may be used.
QuicVersionVector quic_supported_versions;
int quic_max_recent_disabled_reasons;
int quic_threshold_public_resets_post_handshake;
int quic_threshold_timeouts_streams_open;
// Set of QUIC tags to send in the handshake's connection options.
QuicTagVector quic_connection_options;
// If true, all QUIC sessions are closed when any local IP address changes.
bool quic_close_sessions_on_ip_change;
// Specifes QUIC idle connection state lifetime.
int quic_idle_connection_timeout_seconds;
// If true, disable preconnections if QUIC can do 0RTT.
bool quic_disable_preconnect_if_0rtt;
// List of hosts for which QUIC is explicitly whitelisted.
std::unordered_set<std::string> quic_host_whitelist;
// If true, active QUIC sessions may be migrated onto a new network when
// the platform indicates that the default network is changing.
bool quic_migrate_sessions_on_network_change;
// If true, active QUIC sessions experiencing poor connectivity may be
// migrated onto a new network.
bool quic_migrate_sessions_early;
// If true, bidirectional streams over QUIC will be disabled.
bool quic_disable_bidirectional_streams;
ProxyDelegate* proxy_delegate;
// Enable support for Token Binding.
bool enable_token_binding;
};
enum SocketPoolType {
NORMAL_SOCKET_POOL,
WEBSOCKET_SOCKET_POOL,
NUM_SOCKET_POOL_TYPES
};
explicit HttpNetworkSession(const Params& params);
~HttpNetworkSession();
HttpAuthCache* http_auth_cache() { return &http_auth_cache_; }
SSLClientAuthCache* ssl_client_auth_cache() {
return &ssl_client_auth_cache_;
}
void AddResponseDrainer(HttpResponseBodyDrainer* drainer);
void RemoveResponseDrainer(HttpResponseBodyDrainer* drainer);
TransportClientSocketPool* GetTransportSocketPool(SocketPoolType pool_type);
SSLClientSocketPool* GetSSLSocketPool(SocketPoolType pool_type);
SOCKSClientSocketPool* GetSocketPoolForSOCKSProxy(
SocketPoolType pool_type,
const HostPortPair& socks_proxy);
HttpProxyClientSocketPool* GetSocketPoolForHTTPProxy(
SocketPoolType pool_type,
const HostPortPair& http_proxy);
SSLClientSocketPool* GetSocketPoolForSSLWithProxy(
SocketPoolType pool_type,
const HostPortPair& proxy_server);
CertVerifier* cert_verifier() { return cert_verifier_; }
ProxyService* proxy_service() { return proxy_service_; }
SSLConfigService* ssl_config_service() { return ssl_config_service_.get(); }
SpdySessionPool* spdy_session_pool() { return &spdy_session_pool_; }
QuicStreamFactory* quic_stream_factory() { return &quic_stream_factory_; }
HttpAuthHandlerFactory* http_auth_handler_factory() {
return http_auth_handler_factory_;
}
HttpServerProperties* http_server_properties() {
return http_server_properties_;
}
HttpStreamFactory* http_stream_factory() {
return http_stream_factory_.get();
}
HttpStreamFactory* http_stream_factory_for_websocket() {
return http_stream_factory_for_websocket_.get();
}
NetLog* net_log() {
return net_log_;
}
// Creates a Value summary of the state of the socket pools.
std::unique_ptr<base::Value> SocketPoolInfoToValue() const;
// Creates a Value summary of the state of the SPDY sessions.
std::unique_ptr<base::Value> SpdySessionPoolInfoToValue() const;
// Creates a Value summary of the state of the QUIC sessions and
// configuration.
std::unique_ptr<base::Value> QuicInfoToValue() const;
void CloseAllConnections();
void CloseIdleConnections();
// Returns the original Params used to construct this session.
const Params& params() const { return params_; }
bool IsProtocolEnabled(AlternateProtocol protocol) const;
// Populates |*alpn_protos| with protocols to be used with ALPN.
void GetAlpnProtos(NextProtoVector* alpn_protos) const;
// Populates |*npn_protos| with protocols to be used with NPN.
void GetNpnProtos(NextProtoVector* npn_protos) const;
// Populates |server_config| and |proxy_config| based on this session and
// |request|.
void GetSSLConfig(const HttpRequestInfo& request,
SSLConfig* server_config,
SSLConfig* proxy_config) const;
private:
friend class HttpNetworkSessionPeer;
ClientSocketPoolManager* GetSocketPoolManager(SocketPoolType pool_type);
NetLog* const net_log_;
HttpServerProperties* const http_server_properties_;
CertVerifier* const cert_verifier_;
HttpAuthHandlerFactory* const http_auth_handler_factory_;
// Not const since it's modified by HttpNetworkSessionPeer for testing.
ProxyService* proxy_service_;
const scoped_refptr<SSLConfigService> ssl_config_service_;
HttpAuthCache http_auth_cache_;
SSLClientAuthCache ssl_client_auth_cache_;
std::unique_ptr<ClientSocketPoolManager> normal_socket_pool_manager_;
std::unique_ptr<ClientSocketPoolManager> websocket_socket_pool_manager_;
QuicStreamFactory quic_stream_factory_;
SpdySessionPool spdy_session_pool_;
std::unique_ptr<HttpStreamFactory> http_stream_factory_;
std::unique_ptr<HttpStreamFactory> http_stream_factory_for_websocket_;
std::set<HttpResponseBodyDrainer*> response_drainers_;
NextProtoVector next_protos_;
bool enabled_protocols_[NUM_VALID_ALTERNATE_PROTOCOLS];
Params params_;
};
} // namespace net
#endif // NET_HTTP_HTTP_NETWORK_SESSION_H_