blob: 32b74a31f293905592879a74b81975b30d545a23 [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 <memory>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "build/build_config.h"
#include "net/base/net_export.h"
namespace base {
template <typename T> struct DefaultSingletonTraits;
template <class ObserverType>
class ObserverListThreadSafe;
namespace net {
// This class allows callers to observe changes to the underlying certificate
// stores.
// TODO(davidben): This class is really just a giant global ObserverList. It
// does not do anything with the platform certificate and, in principle, //net's
// dependency on the platform is abstracted behind the CertVerifier and
// ClientCertStore interfaces. Ideally these signals would originate out of
// those interfaces' platform implementations.
class NET_EXPORT CertDatabase {
// A CertDatabase::Observer will be notified on certificate database changes.
// The change could be either a user certificate is added/removed or trust on
// a certificate is changed. Observers can be registered via
// CertDatabase::AddObserver, and can un-register with
// CertDatabase::RemoveObserver.
class NET_EXPORT Observer {
virtual ~Observer() {}
// Called whenever the Cert Database is known to have changed.
// Typically, this will be in response to a CA certificate being added,
// removed, or its trust changed, but may also signal on client
// certificate events when they can be reliably detected.
virtual void OnCertDBChanged() {}
Observer() {}
// Returns the CertDatabase singleton.
static CertDatabase* GetInstance();
// Registers |observer| to receive notifications of certificate changes. The
// thread on which this is called is the thread on which |observer| will be
// called back with notifications.
void AddObserver(Observer* observer);
// Unregisters |observer| from receiving notifications. This must be called
// on the same thread on which AddObserver() was called.
void RemoveObserver(Observer* observer);
#if defined(OS_MACOSX) && !defined(OS_IOS)
// Configures the current message loop to observe and forward events from
// Keychain services. The MessageLoop must have an associated CFRunLoop,
// which means that this must be called from a MessageLoop of TYPE_UI.
void SetMessageLoopForKeychainEvents();
// Synthetically injects notifications to all observers. In general, this
// should only be called by the creator of the CertDatabase. Used to inject
// notifications from other DB interfaces.
void NotifyObserversCertDBChanged();
friend struct base::DefaultSingletonTraits<CertDatabase>;
const scoped_refptr<base::ObserverListThreadSafe<Observer>> observer_list_;
#if defined(OS_MACOSX) && !defined(OS_IOS)
void ReleaseNotifier();
class Notifier;
friend class Notifier;
Notifier* notifier_ = nullptr;
} // namespace net