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103 lines
3.9 KiB
C++
103 lines
3.9 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_SSL_SSL_CONFIG_SERVICE_H_
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#define NET_SSL_SSL_CONFIG_SERVICE_H_
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#include <vector>
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#include "base/memory/ref_counted.h"
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#include "base/observer_list.h"
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#include "net/base/net_export.h"
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#include "net/ssl/ssl_config.h"
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namespace net {
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// The interface for retrieving the SSL configuration. This interface
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// does not cover setting the SSL configuration, as on some systems, the
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// SSLConfigService objects may not have direct access to the configuration, or
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// live longer than the configuration preferences.
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class NET_EXPORT SSLConfigService {
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public:
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// Observer is notified when SSL config settings have changed.
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class NET_EXPORT Observer {
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public:
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// Notify observers if SSL settings have changed. We don't check all of the
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// data in SSLConfig, just those that qualify as a user config change.
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// The following settings are considered user changes:
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// version_min
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// version_max
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// tls13_variant
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// disabled_cipher_suites
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// channel_id_enabled
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// false_start_enabled
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// require_ecdhe
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virtual void OnSSLConfigChanged() = 0;
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protected:
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virtual ~Observer() {}
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};
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SSLConfigService();
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virtual ~SSLConfigService();
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// May not be thread-safe, should only be called on the IO thread.
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virtual void GetSSLConfig(SSLConfig* config) = 0;
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// Returns true if connections to |hostname| can reuse, or are permitted to
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// reuse, connections on which a client cert has been negotiated. Note that
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// this must return true for both hostnames being pooled - that is to say this
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// function must return true for both the hostname of the existing connection
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// and the potential hostname to pool before allowing the connection to be
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// reused.
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//
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// NOTE: Pooling connections with ambient authority can create security issues
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// with that ambient authority and privacy issues in that embedders (and
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// users) may not have been consulted to send a client cert to |hostname|.
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// Implementations of this method should only return true if they have
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// received affirmative consent (e.g. through preferences or Enterprise
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// policy).
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//
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// NOTE: For Web Platform clients, this violates the Fetch Standard's policies
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// around connection pools: https://fetch.spec.whatwg.org/#connections.
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// Implementations that return true should take steps to limit the Web
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// Platform visibility of this, such as only allowing it to be used for
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// Enterprise or internal configurations.
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//
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// DEPRECATED: For the reasons above, this method is temporary and will be
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// removed in a future release. Please leave a comment on
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// https://crbug.com/855690 if you believe this is needed.
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virtual bool CanShareConnectionWithClientCerts(
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const std::string& hostname) const = 0;
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// Add an observer of this service.
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void AddObserver(Observer* observer);
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// Remove an observer of this service.
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void RemoveObserver(Observer* observer);
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// Calls the OnSSLConfigChanged method of registered observers. Should only be
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// called on the IO thread.
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void NotifySSLConfigChange();
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// Checks if the config-service managed fields in two SSLConfigs are the same.
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static bool SSLConfigsAreEqualForTesting(const net::SSLConfig& config1,
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const net::SSLConfig& config2);
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protected:
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// Process before/after config update. If |force_notification| is true,
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// NotifySSLConfigChange will be called regardless of whether |orig_config|
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// and |new_config| are equal.
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void ProcessConfigUpdate(const SSLConfig& orig_config,
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const SSLConfig& new_config,
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bool force_notification);
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private:
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base::ObserverList<Observer>::Unchecked observer_list_;
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};
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} // namespace net
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#endif // NET_SSL_SSL_CONFIG_SERVICE_H_
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