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 #include "screenlock_app_manager.h"
17
18 #include "if_system_ability_manager.h"
19 #include "iservice_registry.h"
20 #include "sclock_log.h"
21 #include "screenlock_common.h"
22 #include "system_ability_definition.h"
23
24 namespace OHOS {
25 namespace ScreenLock {
26 std::mutex ScreenLockAppManager::instanceLock_;
27 sptr<ScreenLockAppManager> ScreenLockAppManager::instance_;
28 sptr<ScreenLockAppDeathRecipient> ScreenLockAppManager::deathRecipient_;
29 std::mutex ScreenLockAppManager::listenerLock_;
30 sptr<ScreenLockSystemAbilityInterface> ScreenLockAppManager::systemEventListener_;
31
ScreenLockAppManager()32 ScreenLockAppManager::ScreenLockAppManager()
33 {
34 }
35
~ScreenLockAppManager()36 ScreenLockAppManager::~ScreenLockAppManager()
37 {
38 }
39
GetInstance()40 sptr<ScreenLockAppManager> ScreenLockAppManager::GetInstance()
41 {
42 if (instance_ == nullptr) {
43 std::lock_guard<std::mutex> autoLock(instanceLock_);
44 if (instance_ == nullptr) {
45 instance_ = new ScreenLockAppManager;
46 std::lock_guard<std::mutex> guard(instance_->managerProxyLock_);
47 instance_->screenlockManagerProxy_ = GetScreenLockManagerProxy();
48 }
49 }
50 return instance_;
51 }
52
SendScreenLockEvent(const std::string & event,int param)53 int32_t ScreenLockAppManager::SendScreenLockEvent(const std::string &event, int param)
54 {
55 auto proxy = GetProxy();
56 if (proxy == nullptr) {
57 SCLOCK_HILOGE("ScreenLockAppManager::SendScreenLockEvent quit because redoing GetScreenLockManagerProxy "
58 "failed.");
59 return E_SCREENLOCK_NULLPTR;
60 }
61 SCLOCK_HILOGD("ScreenLockAppManager::SendScreenLockEvent succeeded.");
62 return proxy->SendScreenLockEvent(event, param);
63 }
64
OnSystemEvent(const sptr<ScreenLockSystemAbilityInterface> & listener)65 int32_t ScreenLockAppManager::OnSystemEvent(const sptr<ScreenLockSystemAbilityInterface> &listener)
66 {
67 SCLOCK_HILOGD("ScreenLockAppManager::OnSystemEvent in");
68 auto proxy = GetProxy();
69 if (proxy == nullptr) {
70 SCLOCK_HILOGE("ScreenLockAppManager::OnSystemEvent quit because redoing GetScreenLockManagerProxy failed.");
71 return E_SCREENLOCK_NULLPTR;
72 }
73 if (listener == nullptr) {
74 SCLOCK_HILOGE("listener is nullptr.");
75 return E_SCREENLOCK_NULLPTR;
76 }
77 listenerLock_.lock();
78 systemEventListener_ = listener;
79 listenerLock_.unlock();
80 int32_t status = proxy->OnSystemEvent(listener);
81 SCLOCK_HILOGD("ScreenLockAppManager::OnSystemEvent out, status=%{public}d", status);
82 return status;
83 }
84
GetScreenLockManagerProxy()85 sptr<ScreenLockManagerInterface> ScreenLockAppManager::GetScreenLockManagerProxy()
86 {
87 sptr<ISystemAbilityManager> systemAbilityManager =
88 SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
89 if (systemAbilityManager == nullptr) {
90 SCLOCK_HILOGE("Getting SystemAbilityManager failed.");
91 return nullptr;
92 }
93 auto systemAbility = systemAbilityManager->GetSystemAbility(SCREENLOCK_SERVICE_ID, "");
94 if (systemAbility == nullptr) {
95 SCLOCK_HILOGE("Get SystemAbility failed.");
96 return nullptr;
97 }
98 deathRecipient_ = new ScreenLockAppDeathRecipient();
99 systemAbility->AddDeathRecipient(deathRecipient_);
100 sptr<ScreenLockManagerInterface> screenlockServiceProxy = iface_cast<ScreenLockManagerInterface>(systemAbility);
101 if (screenlockServiceProxy == nullptr) {
102 SCLOCK_HILOGE("Get ScreenLockManagerProxy from SA failed.");
103 return nullptr;
104 }
105 SCLOCK_HILOGD("Getting ScreenLockManagerProxy succeeded.");
106 return screenlockServiceProxy;
107 }
108
OnRemoteSaDied(const wptr<IRemoteObject> & remote)109 void ScreenLockAppManager::OnRemoteSaDied(const wptr<IRemoteObject> &remote)
110 {
111 {
112 std::lock_guard<std::mutex> autoLock(managerProxyLock_);
113 screenlockManagerProxy_ = GetScreenLockManagerProxy();
114 }
115 if (systemEventListener_ != nullptr) {
116 SystemEvent systemEvent(SERVICE_RESTART);
117 systemEventListener_->OnCallBack(systemEvent);
118 }
119 }
120
GetProxy()121 sptr<ScreenLockManagerInterface> ScreenLockAppManager::GetProxy()
122 {
123 if (screenlockManagerProxy_ != nullptr) {
124 return screenlockManagerProxy_;
125 }
126 std::lock_guard<std::mutex> autoLock(managerProxyLock_);
127 if (screenlockManagerProxy_ == nullptr) {
128 SCLOCK_HILOGW("Redo GetScreenLockManagerProxy");
129 screenlockManagerProxy_ = GetScreenLockManagerProxy();
130 }
131 return screenlockManagerProxy_;
132 }
133
ScreenLockAppDeathRecipient()134 ScreenLockAppDeathRecipient::ScreenLockAppDeathRecipient()
135 {
136 }
137
OnRemoteDied(const wptr<IRemoteObject> & object)138 void ScreenLockAppDeathRecipient::OnRemoteDied(const wptr<IRemoteObject> &object)
139 {
140 SCLOCK_HILOGE("ScreenLockAppDeathRecipient on remote systemAbility died.");
141 ScreenLockAppManager::GetInstance()->OnRemoteSaDied(object);
142 }
143 } // namespace ScreenLock
144 } // namespace OHOS
145