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1 /*
2  * Copyright (c) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef OHOS_ABILITY_RUNTIME_APP_STATE_OBSERVER_MANAGER_H
17 #define OHOS_ABILITY_RUNTIME_APP_STATE_OBSERVER_MANAGER_H
18 
19 #include <map>
20 #include <mutex>
21 #include <string>
22 #include <unordered_map>
23 
24 #include "ability_foreground_state_observer_interface.h"
25 #include "app_foreground_state_observer_interface.h"
26 #include "app_running_record.h"
27 #include "app_state_data.h"
28 #include "cpp/mutex.h"
29 #include "iapp_state_callback.h"
30 #include "iapplication_state_observer.h"
31 #include "page_state_data.h"
32 #include "permission_constants.h"
33 #include "permission_verification.h"
34 #include "singleton.h"
35 #include "task_handler_wrap.h"
36 #ifdef SUPPORT_UPMS
37 #include "uri_permission_manager_client.h"
38 #endif // SUPPORT_UPMS
39 
40 namespace OHOS {
41 namespace AppExecFwk {
42 struct AppStateObserverInfo {
43     int32_t uid = 0;
44     std::vector<std::string> bundleNames;
45 };
46 
47 using AppStateObserverMap = std::map<sptr<IApplicationStateObserver>, AppStateObserverInfo>;
48 using AppForegroundStateObserverMap = std::map<sptr<IAppForegroundStateObserver>, int32_t>;
49 using AbilityForegroundObserverMap = std::map<sptr<IAbilityForegroundStateObserver>, int32_t>;
50 
51 enum class ObserverType {
52     APPLICATION_STATE_OBSERVER,
53     APP_FOREGROUND_STATE_OBSERVER,
54     ABILITY_FOREGROUND_STATE_OBSERVER,
55 };
56 class AppStateObserverManager : public std::enable_shared_from_this<AppStateObserverManager> {
57     DECLARE_DELAYED_SINGLETON(AppStateObserverManager)
58 public:
59     void Init();
60     int32_t RegisterApplicationStateObserver(const sptr<IApplicationStateObserver> &observer,
61         const std::vector<std::string> &bundleNameList = {});
62     int32_t UnregisterApplicationStateObserver(const sptr<IApplicationStateObserver> &observer);
63     int32_t RegisterAppForegroundStateObserver(const sptr<IAppForegroundStateObserver> &observer);
64     int32_t UnregisterAppForegroundStateObserver(const sptr<IAppForegroundStateObserver> &observer);
65     int32_t RegisterAbilityForegroundStateObserver(const sptr<IAbilityForegroundStateObserver> &observer);
66     int32_t UnregisterAbilityForegroundStateObserver(const sptr<IAbilityForegroundStateObserver> &observer);
67     void StateChangedNotifyObserver(
68         const AbilityStateData abilityStateData, bool isAbility, bool isFromWindowFocusChanged);
69     void OnAppStateChanged(const std::shared_ptr<AppRunningRecord> &appRecord, const ApplicationState state,
70         bool needNotifyApp, bool isFromWindowFocusChanged);
71     void OnAppStarted(const std::shared_ptr<AppRunningRecord> &appRecord);
72     void OnAppStopped(const std::shared_ptr<AppRunningRecord> &appRecord);
73     void OnProcessCreated(const std::shared_ptr<AppRunningRecord> &appRecord, bool isPreload);
74     void OnProcessStateChanged(const std::shared_ptr<AppRunningRecord> &appRecord);
75     void OnWindowShow(const std::shared_ptr<AppRunningRecord> &appRecord);
76     void OnWindowHidden(const std::shared_ptr<AppRunningRecord> &appRecord);
77     void OnRenderProcessCreated(const std::shared_ptr<RenderRecord> &RenderRecord, const bool isPreload);
78 #ifdef SUPPORT_CHILD_PROCESS
79     void OnChildProcessCreated(std::shared_ptr<ChildProcessRecord> childRecord);
80 #endif // SUPPORT_CHILD_PROCESS
81     void OnProcessDied(const std::shared_ptr<AppRunningRecord> &appRecord);
82     void OnRenderProcessDied(const std::shared_ptr<RenderRecord> &renderRecord);
83 #ifdef SUPPORT_CHILD_PROCESS
84     void OnChildProcessDied(std::shared_ptr<ChildProcessRecord> childRecord);
85 #endif // SUPPORT_CHILD_PROCESS
86     void OnProcessReused(const std::shared_ptr<AppRunningRecord> &appRecord);
87     void OnPageShow(const PageStateData pageStateData);
88     void OnPageHide(const PageStateData pageStateData);
89     void OnAppCacheStateChanged(const std::shared_ptr<AppRunningRecord> &appRecord, ApplicationState state);
90 private:
91     void HandleOnWindowShow(const std::shared_ptr<AppRunningRecord> &appRecord);
92     void HandleOnWindowHidden(const std::shared_ptr<AppRunningRecord> &appRecord);
93     void HandleAppStateChanged(const std::shared_ptr<AppRunningRecord> &appRecord, const ApplicationState state,
94         bool needNotifyApp, bool isFromWindowFocusChanged);
95     void HandleOnAppStarted(const std::shared_ptr<AppRunningRecord> &appRecord);
96     void HandleOnAppStopped(const std::shared_ptr<AppRunningRecord> &appRecord);
97     void HandleStateChangedNotifyObserver(
98         const AbilityStateData abilityStateData, bool isAbility, bool isFromWindowFocusChanged);
99     void HandleOnAppProcessCreated(const std::shared_ptr<AppRunningRecord> &appRecord, bool isPreload);
100     void HandleOnRenderProcessCreated(const std::shared_ptr<RenderRecord> &RenderRecord, const bool isPreload);
101 #ifdef SUPPORT_CHILD_PROCESS
102     void HandleOnChildProcessCreated(std::shared_ptr<ChildProcessRecord> childRecord);
103 #endif // SUPPORT_CHILD_PROCESS
104     void HandleOnAppProcessDied(const std::shared_ptr<AppRunningRecord> &appRecord);
105     void HandleOnRenderProcessDied(const std::shared_ptr<RenderRecord> &RenderRecord);
106 #ifdef SUPPORT_CHILD_PROCESS
107     void HandleOnChildProcessDied(std::shared_ptr<ChildProcessRecord> childRecord);
108 #endif // SUPPORT_CHILD_PROCESS
109     bool ObserverExist(const sptr<IRemoteBroker> &observer);
110     bool IsAppForegroundObserverExist(const sptr<IRemoteBroker> &observer);
111     bool IsAbilityForegroundObserverExist(const sptr<IRemoteBroker> &observer);
112     void AddObserverDeathRecipient(const sptr<IRemoteBroker> &observer, const ObserverType &type);
113     void RemoveObserverDeathRecipient(const sptr<IRemoteBroker> &observer);
114     AppStateObserverMap GetAppStateObserverMapCopy();
115     AppForegroundStateObserverMap GetAppForegroundStateObserverMapCopy();
116     AbilityForegroundObserverMap GetAbilityForegroundObserverMapCopy();
117     ProcessData WrapProcessData(const std::shared_ptr<AppRunningRecord> &appRecord);
118     ProcessData WrapRenderProcessData(const std::shared_ptr<RenderRecord> &renderRecord);
119 #ifdef SUPPORT_CHILD_PROCESS
120     int32_t WrapChildProcessData(ProcessData &processData, std::shared_ptr<ChildProcessRecord> childRecord);
121 #endif // SUPPORT_CHILD_PROCESS
122     void OnObserverDied(const wptr<IRemoteObject> &remote, const ObserverType &type);
123     AppStateData WrapAppStateData(const std::shared_ptr<AppRunningRecord> &appRecord,
124     const ApplicationState state);
125     void HandleOnProcessCreated(const ProcessData &data);
126     void HandleOnProcessStateChanged(const std::shared_ptr<AppRunningRecord> &appRecord);
127     void HandleOnProcessDied(const ProcessData &data);
128     void HandleOnProcessResued(const std::shared_ptr<AppRunningRecord> &appRecord);
129     void HandleOnPageShow(const PageStateData pageStateData);
130     void HandleOnPageHide(const PageStateData pageStateData);
131     void HandleOnAppCacheStateChanged(const std::shared_ptr<AppRunningRecord> &appRecord, ApplicationState state);
132     void AddObserverCount(int32_t uid);
133     void DecreaseObserverCount(int32_t uid);
134 
135 private:
136     std::shared_ptr<AAFwk::TaskHandlerWrap> handler_;
137     AppStateObserverMap appStateObserverMap_;
138     AppForegroundStateObserverMap appForegroundStateObserverMap_;
139     AbilityForegroundObserverMap abilityForegroundObserverMap_;
140     std::map<sptr<IRemoteObject>, sptr<IRemoteObject::DeathRecipient>> recipientMap_;
141     std::unordered_map<int32_t, int32_t> observerCountMap_;  // <uid, count>
142     int32_t observerAmount_ = 0;
143     ffrt::mutex observerLock_;
144     ffrt::mutex appForegroundObserverLock_;
145     ffrt::mutex abilityForegroundObserverLock_;
146     ffrt::mutex recipientMapMutex_;
147     ffrt::mutex observerCountMapMutex_;
148 };
149 }  // namespace AppExecFwk
150 }  // namespace OHOS
151 #endif  // OHOS_ABILITY_RUNTIME_APP_STATE_OBSERVER_MANAGER_H
152