| // Copyright 2017 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 CHROME_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_ |
| #define CHROME_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/optional.h" |
| #include "chrome/browser/net/proxy_config_monitor.h" |
| #include "components/prefs/pref_change_registrar.h" |
| #include "components/prefs/pref_member.h" |
| #include "services/network/public/mojom/network_service.mojom.h" |
| #include "services/network/public/mojom/ssl_config.mojom.h" |
| |
| class PrefRegistrySimple; |
| class SSLConfigServiceManager; |
| |
| namespace network { |
| namespace mojom { |
| class URLLoaderFactory; |
| } |
| class SharedURLLoaderFactory; |
| } // namespace network |
| |
| // Responsible for creating and managing access to the system NetworkContext. |
| // Lives on the UI thread. The NetworkContext this owns is intended for requests |
| // not associated with a profile. It stores no data on disk, and has no HTTP |
| // cache, but it does have ephemeral cookie and channel ID stores. It also does |
| // not have access to HTTP proxy auth information the user has entered or that |
| // comes from extensions, and similarly, has no extension-provided per-profile |
| // proxy configuration information. |
| // |
| // This class is also responsible for configuring global NetworkService state. |
| // |
| // The "system" NetworkContext will either share a URLRequestContext with |
| // IOThread's SystemURLRequestContext and be part of IOThread's NetworkService |
| // (If the network service is disabled) or be an independent NetworkContext |
| // using the actual network service. |
| // |
| // This class is intended to eventually replace IOThread. Handling the two cases |
| // differently allows this to be used in production without breaking anything or |
| // requiring two separate paths, while IOThread consumers slowly transition over |
| // to being compatible with the network service. |
| class SystemNetworkContextManager { |
| public: |
| SystemNetworkContextManager(); |
| ~SystemNetworkContextManager(); |
| |
| static void RegisterPrefs(PrefRegistrySimple* registry); |
| |
| // Initializes |network_context_params| as needed to set up a system |
| // NetworkContext. If the network service is disabled, |
| // |network_context_request| will be for the NetworkContext used by the |
| // SystemNetworkContextManager. Otherwise, this method can still be used to |
| // help set up the IOThread's in-process URLRequestContext. |
| // |
| // Must be called before the system NetworkContext is first used. |
| // |
| // |stub_resolver_enabled|, |dns_over_https_servers|, |
| // |http_auth_static_params|, |http_auth_dynamic_params|, and |
| // |is_quic_allowed| are used to pass initial NetworkService state to the |
| // caller, so the NetworkService can be configured appropriately. Using |
| // NetworkService's Mojo interface to set those options would lead to races |
| // with other UI->IO thread network-related tasks, since Mojo doesn't preserve |
| // execution order relative to PostTasks. |
| void SetUp(network::mojom::NetworkContextRequest* network_context_request, |
| network::mojom::NetworkContextParamsPtr* network_context_params, |
| bool* stub_resolver_enabled, |
| base::Optional<std::vector<network::mojom::DnsOverHttpsServerPtr>>* |
| dns_over_https_servers, |
| network::mojom::HttpAuthStaticParamsPtr* http_auth_static_params, |
| network::mojom::HttpAuthDynamicParamsPtr* http_auth_dynamic_params, |
| bool* is_quic_allowed); |
| |
| // Returns the System NetworkContext. May only be called after SetUp(). Does |
| // any initialization of the NetworkService that may be needed when first |
| // called. |
| network::mojom::NetworkContext* GetContext(); |
| |
| // Returns a URLLoaderFactory owned by the SystemNetworkContextManager that is |
| // backed by the SystemNetworkContext. Allows sharing of the URLLoaderFactory. |
| // Prefer this to creating a new one. Call Clone() on the value returned by |
| // this method to get a URLLoaderFactory that can be used on other threads. |
| network::mojom::URLLoaderFactory* GetURLLoaderFactory(); |
| |
| // Returns a SharedURLLoaderFactory owned by the SystemNetworkContextManager |
| // that is backed by the SystemNetworkContext. |
| scoped_refptr<network::SharedURLLoaderFactory> GetSharedURLLoaderFactory(); |
| |
| // Called when content creates a NetworkService. Creates the |
| // SystemNetworkContext, if the network service is enabled. |
| void OnNetworkServiceCreated(network::mojom::NetworkService* network_service); |
| |
| // Permanently disables QUIC, both for NetworkContexts using the IOThread's |
| // NetworkService, and for those using the network service (if enabled). |
| void DisableQuic(); |
| |
| // Returns an SSLConfigClientRequest that can be passed as a |
| // NetorkContextParam. |
| network::mojom::SSLConfigClientRequest GetSSLConfigClientRequest(); |
| |
| // Populates |initial_ssl_config| and |ssl_config_client_request| members of |
| // |network_context_params|. As long as the SystemNetworkContextManager |
| // exists, any NetworkContext created with the params will continue to get |
| // SSL configuration updates. |
| void AddSSLConfigToNetworkContextParams( |
| network::mojom::NetworkContextParams* network_context_params); |
| |
| // Flushes all pending SSL configuration changes. |
| void FlushSSLConfigManagerForTesting(); |
| |
| // Flushes all pending proxy configuration changes. |
| void FlushProxyConfigMonitorForTesting(); |
| |
| // Call |FlushForTesting()| on Network Service related interfaces. For test |
| // use only. |
| void FlushNetworkInterfaceForTesting(); |
| |
| private: |
| class URLLoaderFactoryForSystem; |
| |
| void UpdateReferrersEnabled(); |
| |
| // Creates parameters for the NetworkContext. May only be called once, since |
| // it initializes some class members. |
| network::mojom::NetworkContextParamsPtr CreateNetworkContextParams(); |
| |
| // This is an instance of the default SSLConfigServiceManager for the current |
| // platform and it gets SSL preferences from the BrowserProcess's local_state |
| // object. It's shared with other NetworkContexts. |
| std::unique_ptr<SSLConfigServiceManager> ssl_config_service_manager_; |
| |
| ProxyConfigMonitor proxy_config_monitor_; |
| |
| // NetworkContext using the network service, if the network service is |
| // enabled. nullptr, otherwise. |
| network::mojom::NetworkContextPtr network_service_network_context_; |
| |
| // This is a NetworkContext that wraps the IOThread's SystemURLRequestContext. |
| // Always initialized in SetUp, but it's only returned by Context() when the |
| // network service is disabled. |
| network::mojom::NetworkContextPtr io_thread_network_context_; |
| |
| // URLLoaderFactory backed by the NetworkContext returned by GetContext(), so |
| // consumers don't all need to create their own factory. |
| scoped_refptr<URLLoaderFactoryForSystem> shared_url_loader_factory_; |
| network::mojom::URLLoaderFactoryPtr url_loader_factory_; |
| |
| bool is_quic_allowed_ = true; |
| |
| PrefChangeRegistrar pref_change_registrar_; |
| |
| BooleanPrefMember enable_referrers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SystemNetworkContextManager); |
| }; |
| |
| #endif // CHROME_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_ |