1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef COMPONENTS_OWNERSHIP_OWNER_SETTINGS_SERVICE_H_
6 #define COMPONENTS_OWNERSHIP_OWNER_SETTINGS_SERVICE_H_
12 #include "base/callback_forward.h"
13 #include "base/macros.h"
14 #include "base/memory/ref_counted.h"
15 #include "base/memory/weak_ptr.h"
16 #include "base/observer_list.h"
17 #include "base/threading/thread_checker.h"
18 #include "components/keyed_service/core/keyed_service.h"
19 #include "components/ownership/ownership_export.h"
20 #include "components/policy/proto/device_management_backend.pb.h"
32 // This class is a common interface for platform-specific classes
33 // which deal with ownership, keypairs and owner-related settings.
34 class OWNERSHIP_EXPORT OwnerSettingsService : public KeyedService {
38 virtual ~Observer() {}
40 // Called when signed policy was stored, or when an error happed during
42 virtual void OnSignedPolicyStored(bool success) {}
44 // Called when tentative changes were made to policy, but the
45 // policy is not signed and stored yet.
47 // TODO (ygorshenin@, crbug.com/230018): get rid of the method
48 // since it creates DeviceSettingsService's dependency on
49 // OwnerSettingsService.
50 virtual void OnTentativeChangesInPolicy(
51 const enterprise_management::PolicyData& policy_data) {}
54 typedef base::Callback<void(
55 std::unique_ptr<enterprise_management::PolicyFetchResponse>
57 AssembleAndSignPolicyAsyncCallback;
59 typedef base::Callback<void(bool is_owner)> IsOwnerCallback;
61 explicit OwnerSettingsService(
62 const scoped_refptr<ownership::OwnerKeyUtil>& owner_key_util);
63 ~OwnerSettingsService() override;
65 base::WeakPtr<OwnerSettingsService> as_weak_ptr() {
66 return weak_factory_.GetWeakPtr();
69 void AddObserver(Observer* observer);
71 void RemoveObserver(Observer* observer);
73 // Returns whether current user is owner or not. When this method
74 // is called too early, incorrect result can be returned because
75 // private key loading may be in progress.
78 // Determines whether current user is owner or not, responds via
80 void IsOwnerAsync(const IsOwnerCallback& callback);
82 // Assembles and signs |policy| on the |task_runner|, responds on
83 // the original thread via |callback|.
84 bool AssembleAndSignPolicyAsync(
85 base::TaskRunner* task_runner,
86 std::unique_ptr<enterprise_management::PolicyData> policy,
87 const AssembleAndSignPolicyAsyncCallback& callback);
89 // Checks whether |setting| is handled by OwnerSettingsService.
90 virtual bool HandlesSetting(const std::string& setting) = 0;
92 // Sets |setting| value to |value|.
93 virtual bool Set(const std::string& setting, const base::Value& value) = 0;
95 // Convenience functions for manipulating lists. Note that the following
96 // functions employs a read, modify and write pattern. If there're
97 // pending updates to |setting|, value cache they read from might not
98 // be fresh and multiple calls to those function would lose data.
99 virtual bool AppendToList(const std::string& setting,
100 const base::Value& value) = 0;
101 virtual bool RemoveFromList(const std::string& setting,
102 const base::Value& value) = 0;
104 // Sets a bunch of device settings accumulated before ownership gets
107 // TODO (ygorshenin@, crbug.com/230018): that this is a temporary
108 // solution and should be removed.
109 virtual bool CommitTentativeDeviceSettings(
110 std::unique_ptr<enterprise_management::PolicyData> policy) = 0;
112 bool SetBoolean(const std::string& setting, bool value);
113 bool SetInteger(const std::string& setting, int value);
114 bool SetDouble(const std::string& setting, double value);
115 bool SetString(const std::string& setting, const std::string& value);
118 void ReloadKeypair();
120 void OnKeypairLoaded(const scoped_refptr<PublicKey>& public_key,
121 const scoped_refptr<PrivateKey>& private_key);
123 // Platform-specific keypair loading algorithm.
124 virtual void ReloadKeypairImpl(const base::Callback<
125 void(const scoped_refptr<PublicKey>& public_key,
126 const scoped_refptr<PrivateKey>& private_key)>& callback) = 0;
128 // Plafrom-specific actions which should be performed when keypair is loaded.
129 virtual void OnPostKeypairLoadedActions() = 0;
131 scoped_refptr<ownership::PublicKey> public_key_;
133 scoped_refptr<ownership::PrivateKey> private_key_;
135 scoped_refptr<ownership::OwnerKeyUtil> owner_key_util_;
137 std::vector<IsOwnerCallback> pending_is_owner_callbacks_;
139 base::ObserverList<Observer> observers_;
141 base::ThreadChecker thread_checker_;
144 base::WeakPtrFactory<OwnerSettingsService> weak_factory_;
146 DISALLOW_COPY_AND_ASSIGN(OwnerSettingsService);
149 } // namespace ownership
151 #endif // COMPONENTS_OWNERSHIP_OWNER_SETTINGS_SERVICE_H_