blob: 9f32e8682099a1a5e9cf4547a57c38bfae39bec2 [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 <vector>
#include "base/memory/ref_counted.h"
#include "base/observer_list.h"
#include "net/base/net_export.h"
#include "net/ssl/ssl_config.h"
namespace net {
// The interface for retrieving the SSL configuration. This interface
// does not cover setting the SSL configuration, as on some systems, the
// SSLConfigService objects may not have direct access to the configuration, or
// live longer than the configuration preferences.
class NET_EXPORT SSLConfigService {
// Observer is notified when SSL config settings have changed.
class NET_EXPORT Observer {
// Notify observers if SSL settings have changed. We don't check all of the
// data in SSLConfig, just those that qualify as a user config change.
// The following settings are considered user changes:
// version_min
// version_max
// tls13_variant
// disabled_cipher_suites
// channel_id_enabled
// false_start_enabled
// require_ecdhe
virtual void OnSSLConfigChanged() = 0;
virtual ~Observer() {}
virtual ~SSLConfigService();
// May not be thread-safe, should only be called on the IO thread.
virtual void GetSSLConfig(SSLConfig* config) = 0;
// Returns true if connections to |hostname| can reuse, or are permitted to
// reuse, connections on which a client cert has been negotiated. Note that
// this must return true for both hostnames being pooled - that is to say this
// function must return true for both the hostname of the existing connection
// and the potential hostname to pool before allowing the connection to be
// reused.
// NOTE: Pooling connections with ambient authority can create security issues
// with that ambient authority and privacy issues in that embedders (and
// users) may not have been consulted to send a client cert to |hostname|.
// Implementations of this method should only return true if they have
// received affirmative consent (e.g. through preferences or Enterprise
// policy).
// NOTE: For Web Platform clients, this violates the Fetch Standard's policies
// around connection pools:
// Implementations that return true should take steps to limit the Web
// Platform visibility of this, such as only allowing it to be used for
// Enterprise or internal configurations.
// DEPRECATED: For the reasons above, this method is temporary and will be
// removed in a future release. Please leave a comment on
// if you believe this is needed.
virtual bool CanShareConnectionWithClientCerts(
const std::string& hostname) const = 0;
// Add an observer of this service.
void AddObserver(Observer* observer);
// Remove an observer of this service.
void RemoveObserver(Observer* observer);
// Calls the OnSSLConfigChanged method of registered observers. Should only be
// called on the IO thread.
void NotifySSLConfigChange();
// Checks if the config-service managed fields in two SSLConfigs are the same.
static bool SSLConfigsAreEqualForTesting(const net::SSLConfig& config1,
const net::SSLConfig& config2);
// Process before/after config update. If |force_notification| is true,
// NotifySSLConfigChange will be called regardless of whether |orig_config|
// and |new_config| are equal.
void ProcessConfigUpdate(const SSLConfig& orig_config,
const SSLConfig& new_config,
bool force_notification);
base::ObserverList<Observer>::Unchecked observer_list_;
} // namespace net