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_manager.h"
17
18 #include <hitrace_meter.h>
19
20 #include "if_system_ability_manager.h"
21 #include "iservice_registry.h"
22 #include "sclock_log.h"
23 #include "screenlock_common.h"
24 #include "system_ability_definition.h"
25
26 namespace OHOS {
27 namespace ScreenLock {
28 std::mutex ScreenLockManager::instanceLock_;
29 sptr<ScreenLockManager> ScreenLockManager::instance_;
30 sptr<ScreenLockSaDeathRecipient> ScreenLockManager::deathRecipient_;
31
ScreenLockManager()32 ScreenLockManager::ScreenLockManager()
33 {
34 }
35
~ScreenLockManager()36 ScreenLockManager::~ScreenLockManager()
37 {
38 }
39
GetInstance()40 sptr<ScreenLockManager> ScreenLockManager::GetInstance()
41 {
42 if (instance_ == nullptr) {
43 std::lock_guard<std::mutex> autoLock(instanceLock_);
44 if (instance_ == nullptr) {
45 instance_ = new ScreenLockManager;
46 std::lock_guard<std::mutex> guard(instance_->managerProxyLock_);
47 instance_->screenlockManagerProxy_ = GetScreenLockManagerProxy();
48 }
49 }
50 return instance_;
51 }
52
IsLocked(bool & isLocked)53 int32_t ScreenLockManager::IsLocked(bool &isLocked)
54 {
55 auto proxy = GetProxy();
56 if (proxy == nullptr) {
57 SCLOCK_HILOGE("IsLocked quit because GetScreenLockManagerProxy failed.");
58 return E_SCREENLOCK_SENDREQUEST_FAILED;
59 }
60 return proxy->IsLocked(isLocked);
61 }
62
IsScreenLocked()63 bool ScreenLockManager::IsScreenLocked()
64 {
65 auto proxy = GetProxy();
66 if (proxy == nullptr) {
67 SCLOCK_HILOGE("IsScreenLocked quit because GetScreenLockManagerProxy failed.");
68 return false;
69 }
70 return proxy->IsScreenLocked();
71 }
72
GetSecure()73 bool ScreenLockManager::GetSecure()
74 {
75 auto proxy = GetProxy();
76 if (proxy == nullptr) {
77 SCLOCK_HILOGE("GetSecure quit because redoing GetScreenLockManagerProxy failed.");
78 return false;
79 }
80 return proxy->GetSecure();
81 }
82
Unlock(Action action,const sptr<ScreenLockSystemAbilityInterface> & listener)83 int32_t ScreenLockManager::Unlock(Action action, const sptr<ScreenLockSystemAbilityInterface> &listener)
84 {
85 auto proxy = GetProxy();
86 if (proxy == nullptr) {
87 SCLOCK_HILOGE("RequestUnlock quit because redoing GetScreenLockManagerProxy failed.");
88 return E_SCREENLOCK_NULLPTR;
89 }
90 if (listener == nullptr) {
91 SCLOCK_HILOGE("listener is nullptr.");
92 return E_SCREENLOCK_NULLPTR;
93 }
94 StartAsyncTrace(HITRACE_TAG_MISC, "ScreenLockManager RequestUnlock start", HITRACE_UNLOCKSCREEN);
95 if (action == Action::UNLOCKSCREEN) {
96 return proxy->UnlockScreen(listener);
97 }
98 return proxy->Unlock(listener);
99 }
100
Lock(const sptr<ScreenLockSystemAbilityInterface> & listener)101 int32_t ScreenLockManager::Lock(const sptr<ScreenLockSystemAbilityInterface> &listener)
102 {
103 auto proxy = GetProxy();
104 if (proxy == nullptr) {
105 SCLOCK_HILOGE("RequestLock quit because redoing GetScreenLockManagerProxy failed.");
106 return E_SCREENLOCK_NULLPTR;
107 }
108 if (listener == nullptr) {
109 SCLOCK_HILOGE("listener is nullptr.");
110 return E_SCREENLOCK_NULLPTR;
111 }
112 SCLOCK_HILOGD("ScreenLockManager RequestLock succeeded.");
113 return proxy->Lock(listener);
114 }
115
GetScreenLockManagerProxy()116 sptr<ScreenLockManagerInterface> ScreenLockManager::GetScreenLockManagerProxy()
117 {
118 sptr<ISystemAbilityManager> systemAbilityManager =
119 SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
120 if (systemAbilityManager == nullptr) {
121 SCLOCK_HILOGE("Getting SystemAbilityManager failed.");
122 return nullptr;
123 }
124 auto systemAbility = systemAbilityManager->GetSystemAbility(SCREENLOCK_SERVICE_ID, "");
125 if (systemAbility == nullptr) {
126 SCLOCK_HILOGE("Get SystemAbility failed.");
127 return nullptr;
128 }
129 deathRecipient_ = new ScreenLockSaDeathRecipient();
130 systemAbility->AddDeathRecipient(deathRecipient_);
131 sptr<ScreenLockManagerInterface> screenlockServiceProxy = iface_cast<ScreenLockManagerInterface>(systemAbility);
132 if (screenlockServiceProxy == nullptr) {
133 SCLOCK_HILOGE("Get ScreenLockManagerProxy from SA failed.");
134 return nullptr;
135 }
136 SCLOCK_HILOGD("Getting ScreenLockManagerProxy succeeded.");
137 return screenlockServiceProxy;
138 }
139
OnRemoteSaDied(const wptr<IRemoteObject> & remote)140 void ScreenLockManager::OnRemoteSaDied(const wptr<IRemoteObject> &remote)
141 {
142 std::lock_guard<std::mutex> autoLock(managerProxyLock_);
143 screenlockManagerProxy_ = GetScreenLockManagerProxy();
144 }
145
GetProxy()146 sptr<ScreenLockManagerInterface> ScreenLockManager::GetProxy()
147 {
148 if (screenlockManagerProxy_ != nullptr) {
149 return screenlockManagerProxy_;
150 }
151 std::lock_guard<std::mutex> autoLock(managerProxyLock_);
152 if (screenlockManagerProxy_ == nullptr) {
153 SCLOCK_HILOGW("Redo GetScreenLockManagerProxy");
154 screenlockManagerProxy_ = GetScreenLockManagerProxy();
155 }
156 return screenlockManagerProxy_;
157 }
158
ScreenLockSaDeathRecipient()159 ScreenLockSaDeathRecipient::ScreenLockSaDeathRecipient()
160 {
161 }
162
OnRemoteDied(const wptr<IRemoteObject> & object)163 void ScreenLockSaDeathRecipient::OnRemoteDied(const wptr<IRemoteObject> &object)
164 {
165 SCLOCK_HILOGE("ScreenLockSaDeathRecipient on remote systemAbility died.");
166 ScreenLockManager::GetInstance()->OnRemoteSaDied(object);
167 }
168 } // namespace ScreenLock
169 } // namespace OHOS
170