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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 #include "device_state_observer.h"
17 
18 #include "battery_srv_client.h"
19 #include "iservice_registry.h"
20 #include "networkshare_client.h"
21 #include "networkshare_constants.h"
22 #include "power_mgr_client.h"
23 #include "power_mode_info.h"
24 #include "system_ability_definition.h"
25 #include "telephony_log_wrapper.h"
26 
27 namespace OHOS {
28 namespace Telephony {
29 using PowerMode = OHOS::PowerMgr::PowerMode;
30 namespace {
31 const std::string NET_TYPE = "NetType";
32 }
33 
StartEventSubscriber(const std::shared_ptr<DeviceStateHandler> & deviceStateHandler)34 void DeviceStateObserver::StartEventSubscriber(const std::shared_ptr<DeviceStateHandler> &deviceStateHandler)
35 {
36     MatchingSkills matchingSkills;
37     matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_CONNECTIVITY_CHANGE);
38     matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_SCREEN_ON);
39     matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_SCREEN_OFF);
40     matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_POWER_SAVE_MODE_CHANGED);
41     matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_CHARGING);
42     matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_DISCHARGING);
43     CommonEventSubscribeInfo subscriberInfo(matchingSkills);
44     subscriberInfo.SetThreadMode(EventFwk::CommonEventSubscribeInfo::COMMON);
45     subscriber_ = std::make_shared<DeviceStateEventSubscriber>(subscriberInfo);
46     subscriber_->SetEventHandler(deviceStateHandler);
47     subscriber_->InitEventMap();
48     sharingEventCallback_ = new (std::nothrow) SharingEventCallback(deviceStateHandler);
49 
50     auto samgrProxy = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
51     statusChangeListener_ = new (std::nothrow) SystemAbilityStatusChangeListener(subscriber_, sharingEventCallback_);
52     if (samgrProxy == nullptr || statusChangeListener_ == nullptr) {
53         TELEPHONY_LOGE("StartEventSubscriber samgrProxy or statusChangeListener_ is nullptr");
54         return;
55     }
56     int32_t commonEventResult = samgrProxy->SubscribeSystemAbility(COMMON_EVENT_SERVICE_ID, statusChangeListener_);
57     int32_t powerManagerResult = samgrProxy->SubscribeSystemAbility(POWER_MANAGER_SERVICE_ID, statusChangeListener_);
58     int32_t powerManagerBattResult =
59         samgrProxy->SubscribeSystemAbility(POWER_MANAGER_BATT_SERVICE_ID, statusChangeListener_);
60     int32_t netManagerResult =
61         samgrProxy->SubscribeSystemAbility(COMM_NET_TETHERING_MANAGER_SYS_ABILITY_ID, statusChangeListener_);
62     TELEPHONY_LOGI(
63         "SubscribeSystemAbility COMMON_EVENT_SERVICE_ID(result:%{public}d) POWER_MANAGER_SERVICE_ID(result:%{public}d) "
64         "POWER_MANAGER_BATT_SERVICE_ID(result:%{public}d) COMM_NET_TETHERING_MANAGER_SYS_ABILITY_ID(result:%{public}d)",
65         commonEventResult, powerManagerResult, powerManagerBattResult, netManagerResult);
66 }
67 
StopEventSubscriber()68 void DeviceStateObserver::StopEventSubscriber()
69 {
70     if (subscriber_ != nullptr) {
71         bool subscribeResult = CommonEventManager::UnSubscribeCommonEvent(subscriber_);
72         subscriber_ = nullptr;
73         TELEPHONY_LOGI("DeviceStateObserver::StopEventSubscriber subscribeResult = %{public}d", subscribeResult);
74     }
75 
76     if (sharingEventCallback_ == nullptr) {
77         TELEPHONY_LOGE("DeviceStateObserver::StopEventSubscriber sharingEventCallback_ is nullptr");
78         return;
79     }
80     auto networkShareClient = DelayedSingleton<NetManagerStandard::NetworkShareClient>::GetInstance();
81     if (networkShareClient == nullptr) {
82         TELEPHONY_LOGE("DeviceStateObserver::StopEventSubscriber networkShareClient is nullptr");
83         return;
84     }
85     networkShareClient->UnregisterSharingEvent(sharingEventCallback_);
86     sharingEventCallback_ = nullptr;
87 }
88 
OnReceiveEvent(const CommonEventData & data)89 void DeviceStateEventSubscriber::OnReceiveEvent(const CommonEventData &data)
90 {
91     if (deviceStateHandler_ == nullptr) {
92         TELEPHONY_LOGE("DeviceStateEventSubscriber::OnReceiveEvent: networkSearchHandler_ is nullptr");
93         return;
94     }
95     std::string action = data.GetWant().GetAction();
96     TELEPHONY_LOGI("DeviceStateEventSubscriber::OnReceiveEvent: action = %{public}s", action.c_str());
97     switch (GetDeviceStateEventIntValue(action)) {
98         case COMMON_EVENT_CONNECTIVITY_CHANGE:
99             ProcessWifiState(data);
100             break;
101         case COMMON_EVENT_SCREEN_ON:
102             deviceStateHandler_->ProcessScreenDisplay(true);
103             break;
104         case COMMON_EVENT_SCREEN_OFF:
105             deviceStateHandler_->ProcessScreenDisplay(false);
106             break;
107         case COMMON_EVENT_POWER_SAVE_MODE_CHANGED:
108             ProcessPowerSaveMode(data);
109             break;
110         case COMMON_EVENT_CHARGING:
111             deviceStateHandler_->ProcessChargingState(true);
112             break;
113         case COMMON_EVENT_DISCHARGING:
114             deviceStateHandler_->ProcessChargingState(false);
115             break;
116         default:
117             TELEPHONY_LOGE("DeviceStateEventSubscriber::OnReceiveEvent: invalid event");
118             break;
119     }
120 }
121 
ProcessWifiState(const CommonEventData & data)122 void DeviceStateEventSubscriber::ProcessWifiState(const CommonEventData &data)
123 {
124     if (deviceStateHandler_ == nullptr) {
125         TELEPHONY_LOGE("DeviceStateEventSubscriber::ProcessWifiState networkSearchHandler_ is nullptr");
126         return;
127     }
128     if (data.GetWant().GetIntParam(NET_TYPE, NetBearType::BEARER_DEFAULT) == NetBearType::BEARER_WIFI) {
129         bool isWifiConnected = data.GetCode() == NetConnState::NET_CONN_STATE_CONNECTED;
130         deviceStateHandler_->ProcessWifiState(isWifiConnected);
131         TELEPHONY_LOGI("DeviceStateEventSubscriber wifi %{public}s", isWifiConnected ? "connected" : "no connected");
132     }
133 }
134 
ProcessPowerSaveMode(const CommonEventData & data)135 void DeviceStateEventSubscriber::ProcessPowerSaveMode(const CommonEventData &data)
136 {
137     if (deviceStateHandler_ == nullptr) {
138         TELEPHONY_LOGE("DeviceStateEventSubscriber::ProcessPowerSaveMode networkSearchHandler_ is nullptr");
139         return;
140     }
141     PowerMode powerModeCode = static_cast<PowerMode>(data.GetCode());
142     switch (powerModeCode) {
143         case PowerMode::POWER_SAVE_MODE:
144         case PowerMode::EXTREME_POWER_SAVE_MODE:
145             deviceStateHandler_->ProcessPowerSaveMode(true);
146             break;
147         case PowerMode::PERFORMANCE_MODE:
148         case PowerMode::NORMAL_MODE:
149             deviceStateHandler_->ProcessPowerSaveMode(false);
150             break;
151         default:
152             TELEPHONY_LOGE("DeviceStateEventSubscriber::ProcessPowerSaveMode invalid event");
153             break;
154     }
155     TELEPHONY_LOGI("ProcessPowerSaveMode powerModeCode %{public}d", static_cast<int32_t>(powerModeCode));
156 }
157 
SetEventHandler(const std::shared_ptr<DeviceStateHandler> & deviceStateHandler)158 void DeviceStateEventSubscriber::SetEventHandler(const std::shared_ptr<DeviceStateHandler> &deviceStateHandler)
159 {
160     deviceStateHandler_ = deviceStateHandler;
161 }
162 
GetEventHandler()163 std::shared_ptr<DeviceStateHandler> DeviceStateEventSubscriber::GetEventHandler()
164 {
165     return deviceStateHandler_;
166 }
167 
GetDeviceStateEventIntValue(std::string & event) const168 DeviceStateEventIntValue DeviceStateEventSubscriber::GetDeviceStateEventIntValue(std::string &event) const
169 {
170     auto iter = deviceStateEventMapIntValues_.find(event);
171     if (iter == deviceStateEventMapIntValues_.end()) {
172         return COMMON_EVENT_UNKNOWN;
173     }
174     return iter->second;
175 }
176 
InitEventMap()177 void DeviceStateEventSubscriber::InitEventMap()
178 {
179     deviceStateEventMapIntValues_ = {
180         {CommonEventSupport::COMMON_EVENT_CONNECTIVITY_CHANGE, COMMON_EVENT_CONNECTIVITY_CHANGE},
181         {CommonEventSupport::COMMON_EVENT_SCREEN_ON, COMMON_EVENT_SCREEN_ON},
182         {CommonEventSupport::COMMON_EVENT_SCREEN_OFF, COMMON_EVENT_SCREEN_OFF},
183         {CommonEventSupport::COMMON_EVENT_POWER_SAVE_MODE_CHANGED, COMMON_EVENT_POWER_SAVE_MODE_CHANGED},
184         {CommonEventSupport::COMMON_EVENT_CHARGING, COMMON_EVENT_CHARGING},
185         {CommonEventSupport::COMMON_EVENT_DISCHARGING, COMMON_EVENT_DISCHARGING},
186     };
187 }
188 
SystemAbilityStatusChangeListener(std::shared_ptr<DeviceStateEventSubscriber> & sub,sptr<NetManagerStandard::ISharingEventCallback> & callback)189 DeviceStateObserver::SystemAbilityStatusChangeListener::SystemAbilityStatusChangeListener(
190     std::shared_ptr<DeviceStateEventSubscriber> &sub, sptr<NetManagerStandard::ISharingEventCallback> &callback)
191     : sub_(sub), callback_(callback)
192 {}
193 
OnAddSystemAbility(int32_t systemAbilityId,const std::string & deviceId)194 void DeviceStateObserver::SystemAbilityStatusChangeListener::OnAddSystemAbility(
195     int32_t systemAbilityId, const std::string& deviceId)
196 {
197     TELEPHONY_LOGI("systemAbilityId is %{public}d", systemAbilityId);
198     if (sub_ == nullptr) {
199         TELEPHONY_LOGE("OnAddSystemAbility sub_ is nullptr");
200         return;
201     }
202     if (sub_->GetEventHandler() == nullptr && systemAbilityId != COMMON_EVENT_SERVICE_ID) {
203         TELEPHONY_LOGE("DeviceStateObserver OnAddSystemAbility eventHandler is nullptr");
204         return;
205     }
206     switch (systemAbilityId) {
207         case POWER_MANAGER_SERVICE_ID: {
208             auto &powerMgrClient = PowerMgr::PowerMgrClient::GetInstance();
209             sub_->GetEventHandler()->ProcessScreenDisplay(powerMgrClient.IsScreenOn());
210             auto powerSaveMode = powerMgrClient.GetDeviceMode();
211             sub_->GetEventHandler()->ProcessPowerSaveMode(
212                 powerSaveMode == PowerMode::POWER_SAVE_MODE || powerSaveMode == PowerMode::EXTREME_POWER_SAVE_MODE);
213             break;
214         }
215         case POWER_MANAGER_BATT_SERVICE_ID: {
216             auto &batterySrvClient = PowerMgr::BatterySrvClient::GetInstance();
217             sub_->GetEventHandler()->ProcessChargingState(
218                 batterySrvClient.GetChargingStatus() == PowerMgr::BatteryChargeState::CHARGE_STATE_ENABLE);
219             break;
220         }
221         case COMMON_EVENT_SERVICE_ID: {
222             bool subscribeResult = EventFwk::CommonEventManager::SubscribeCommonEvent(sub_);
223             TELEPHONY_LOGI("DeviceStateObserver::OnAddSystemAbility subscribeResult = %{public}d", subscribeResult);
224             break;
225         }
226         case COMM_NET_TETHERING_MANAGER_SYS_ABILITY_ID: {
227             auto networkShareClient = DelayedSingleton<NetManagerStandard::NetworkShareClient>::GetInstance();
228             if (networkShareClient == nullptr) {
229                 TELEPHONY_LOGE("DeviceStateObserver OnAddSystemAbility networkShareClient is nullptr");
230                 return;
231             }
232             int32_t isSharing = 0;
233             networkShareClient->IsSharing(isSharing);
234             sub_->GetEventHandler()->ProcessNetSharingState(isSharing == NetManagerStandard::NETWORKSHARE_IS_SHARING);
235             networkShareClient->RegisterSharingEvent(callback_);
236             break;
237         }
238         default:
239             TELEPHONY_LOGE("systemAbilityId is invalid");
240             break;
241     }
242 }
243 
OnRemoveSystemAbility(int32_t systemAbilityId,const std::string & deviceId)244 void DeviceStateObserver::SystemAbilityStatusChangeListener::OnRemoveSystemAbility(
245     int32_t systemAbilityId, const std::string& deviceId)
246 {
247     if (systemAbilityId != COMMON_EVENT_SERVICE_ID) {
248         TELEPHONY_LOGE("systemAbilityId is not COMMON_EVENT_SERVICE_ID");
249         return;
250     }
251     if (sub_ == nullptr) {
252         TELEPHONY_LOGE("DeviceStateObserver::OnRemoveSystemAbility sub_ is nullptr");
253         return;
254     }
255     bool subscribeResult = CommonEventManager::UnSubscribeCommonEvent(sub_);
256     TELEPHONY_LOGI("DeviceStateObserver::OnRemoveSystemAbility subscribeResult = %{public}d", subscribeResult);
257 }
258 
SharingEventCallback(const std::shared_ptr<DeviceStateHandler> & deviceStateHandler)259 SharingEventCallback::SharingEventCallback(
260     const std::shared_ptr<DeviceStateHandler> &deviceStateHandler) : handler_(deviceStateHandler)
261 {}
262 
OnSharingStateChanged(const bool & isRunning)263 void SharingEventCallback::OnSharingStateChanged(const bool &isRunning)
264 {
265     if (handler_ == nullptr) {
266         TELEPHONY_LOGE("OnSharingStateChanged handler_ is nullptr");
267         return;
268     }
269     TELEPHONY_LOGI("DeviceStateObserver::OnSharingStateChanged: isSharing = %{public}d", isRunning);
270     handler_->ProcessNetSharingState(isRunning);
271 }
272 } // namespace Telephony
273 } // namespace OHOS
274