File: ssl_config_service_manager.h

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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_SSL_SSL_CONFIG_SERVICE_MANAGER_H_
#define CHROME_BROWSER_SSL_SSL_CONFIG_SERVICE_MANAGER_H_

#include "components/prefs/pref_change_registrar.h"
#include "components/prefs/pref_member.h"
#include "mojo/public/cpp/bindings/remote_set.h"
#include "services/network/public/mojom/network_context.mojom-forward.h"
#include "services/network/public/mojom/ssl_config.mojom.h"

class PrefService;
class PrefRegistrySimple;

// Sends updated `network::mojom::SSLConfig`s to one or more
// `network::Mojom::SSLConfigClient`s. Not threadsafe.
class SSLConfigServiceManager {
 public:
  // Creates a new `SSLConfigServiceManager`. The lifetime of the `PrefService`
  // objects must be longer than that of the manager. Get SSL preferences from
  // `local_state`.
  explicit SSLConfigServiceManager(PrefService* local_state);

  SSLConfigServiceManager(const SSLConfigServiceManager&) = delete;
  SSLConfigServiceManager& operator=(const SSLConfigServiceManager&) = delete;

  static void RegisterPrefs(PrefRegistrySimple* registry);

  ~SSLConfigServiceManager();

  // Populates the `SSLConfig`-related members of `network_context_params`
  // (`initial_ssl_config` and `ssl_config_client_receiver`). Updated
  // `SSLConfig`s will be send to the `NetworkContext` created with those params
  // whenever the configuration changes. Can be called more than once to inform
  // multiple `NetworkContext`s of changes.
  void AddToNetworkContextParams(
      network::mojom::NetworkContextParams* network_context_params);

  // Flushes all `SSLConfigClient` mojo pipes, to avoid races in tests.
  void FlushForTesting();

 private:
  // Callback for preference changes.  This will post the changes to the IO
  // thread with `SetNewSSLConfig`.
  void OnPreferenceChanged(PrefService* prefs, const std::string& pref_name);

  // Returns the current `SSLConfig` settings from preferences. Assumes
  // `disabled_cipher_suites_` is up-to-date, but reads all other settings from
  // live prefs.
  network::mojom::SSLConfigPtr GetSSLConfigFromPrefs() const;

  // Processes changes to the disabled cipher suites preference, updating the
  // cached list of parsed SSL/TLS cipher suites that are disabled.
  void OnDisabledCipherSuitesChange(PrefService* local_state);

  PrefChangeRegistrar local_state_change_registrar_;

  // The local_state prefs.
  BooleanPrefMember rev_checking_enabled_;
  BooleanPrefMember rev_checking_required_local_anchors_;
  StringPrefMember ssl_version_min_;
  StringPrefMember ssl_version_max_;
  StringListPrefMember h2_client_cert_coalescing_host_patterns_;
  BooleanPrefMember post_quantum_enabled_;
#if BUILDFLAG(IS_CHROMEOS)
  BooleanPrefMember device_post_quantum_enabled_;
#endif
  BooleanPrefMember ech_enabled_;

  // The cached list of disabled SSL cipher suites.
  std::vector<uint16_t> disabled_cipher_suites_;

  mojo::RemoteSet<network::mojom::SSLConfigClient> ssl_config_client_set_;
};

#endif  // CHROME_BROWSER_SSL_SSL_CONFIG_SERVICE_MANAGER_H_