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 "policy_observer_wrapper.h"
17
18 #include "constant.h"
19 #include "module_template.h"
20 #include "napi_constant.h"
21 #include "net_manager_constants.h"
22 #include "net_policy_client.h"
23 #include "net_policy_constants.h"
24
25 namespace OHOS {
26 namespace NetManagerStandard {
PolicyObserverWrapper()27 PolicyObserverWrapper::PolicyObserverWrapper()
28 : observer_(new NetPolicyCallbackObserver()), manager_(new EventManager()), registed_(false)
29 {
30 }
31
~PolicyObserverWrapper()32 PolicyObserverWrapper::~PolicyObserverWrapper()
33 {
34 if (manager_ != nullptr) {
35 delete manager_;
36 }
37 }
38
On(napi_env env,napi_callback_info info,const std::initializer_list<std::string> & events,bool asyncCallback)39 napi_value PolicyObserverWrapper::On(napi_env env, napi_callback_info info,
40 const std::initializer_list<std::string> &events, bool asyncCallback)
41 {
42 size_t paramsCount = MAX_PARAM_NUM;
43 napi_value params[MAX_PARAM_NUM] = {nullptr};
44 NAPI_CALL(env, napi_get_cb_info(env, info, ¶msCount, params, nullptr, nullptr));
45 if (paramsCount != PARAM_OPTIONS_AND_CALLBACK || NapiUtils::GetValueType(env, params[ARG_INDEX_0]) != napi_string ||
46 NapiUtils::GetValueType(env, params[ARG_INDEX_1]) != napi_function) {
47 NETMANAGER_BASE_LOGE("on off once interface para: [string, function]");
48 napi_throw_error(env, std::to_string(NETMANAGER_ERR_PARAMETER_ERROR).c_str(), "Parameter error");
49 return NapiUtils::GetUndefined(env);
50 }
51
52 const auto event = NapiUtils::GetStringFromValueUtf8(env, params[ARG_INDEX_0]);
53 if (std::find(events.begin(), events.end(), event) == events.end()) {
54 NETMANAGER_BASE_LOGE("no find event");
55 return NapiUtils::GetUndefined(env);
56 }
57 if (!registed_) {
58 int32_t ret = DelayedSingleton<NetPolicyClient>::GetInstance()->RegisterNetPolicyCallback(observer_);
59 NETMANAGER_BASE_LOGI("ret = [%{public}d]", ret);
60 registed_ = (ret == NETMANAGER_SUCCESS);
61 if (!registed_) {
62 NETMANAGER_BASE_LOGE("register callback error");
63 NetBaseErrorCodeConvertor convertor;
64 std::string errorMsg = convertor.ConvertErrorCode(ret);
65 napi_throw_error(env, std::to_string(ret).c_str(), errorMsg.c_str());
66 }
67 }
68 if (registed_) {
69 manager_->AddListener(env, event, params[ARG_INDEX_1], false, asyncCallback);
70 }
71 return NapiUtils::GetUndefined(env);
72 }
73
Off(napi_env env,napi_callback_info info,const std::initializer_list<std::string> & events,bool asyncCallback)74 napi_value PolicyObserverWrapper::Off(napi_env env, napi_callback_info info,
75 const std::initializer_list<std::string> &events, bool asyncCallback)
76 {
77 napi_value thisVal = nullptr;
78 size_t paramsCount = MAX_PARAM_NUM;
79 napi_value params[MAX_PARAM_NUM] = {nullptr};
80 NAPI_CALL(env, napi_get_cb_info(env, info, ¶msCount, params, &thisVal, nullptr));
81
82 if (!(paramsCount != PARAM_JUST_OPTIONS || paramsCount != PARAM_OPTIONS_AND_CALLBACK) ||
83 NapiUtils::GetValueType(env, params[ARG_INDEX_0]) != napi_string) {
84 NETMANAGER_BASE_LOGE("on off once interface para: [string, function?]");
85 napi_throw_error(env, std::to_string(NETMANAGER_ERR_PARAMETER_ERROR).c_str(), "Parameter error");
86 return NapiUtils::GetUndefined(env);
87 }
88
89 if (paramsCount == PARAM_OPTIONS_AND_CALLBACK &&
90 NapiUtils::GetValueType(env, params[ARG_INDEX_1]) != napi_function) {
91 NETMANAGER_BASE_LOGE("on off once interface para: [string, function]");
92 return NapiUtils::GetUndefined(env);
93 }
94
95 std::string event = NapiUtils::GetStringFromValueUtf8(env, params[ARG_INDEX_0]);
96 if (std::find(events.begin(), events.end(), event) == events.end()) {
97 return NapiUtils::GetUndefined(env);
98 }
99 if (paramsCount == PARAM_OPTIONS_AND_CALLBACK) {
100 manager_->DeleteListener(event, params[ARG_INDEX_1]);
101 } else {
102 manager_->DeleteListener(event);
103 }
104
105 if (manager_->IsListenerListEmpty()) {
106 auto ret = DelayedSingleton<NetPolicyClient>::GetInstance()->UnregisterNetPolicyCallback(observer_);
107 if (ret != NETMANAGER_SUCCESS) {
108 NETMANAGER_BASE_LOGE("unregister ret = %{public}d", ret);
109 return NapiUtils::GetUndefined(env);
110 }
111 registed_ = false;
112 }
113
114 return NapiUtils::GetUndefined(env);
115 }
116 } // namespace NetManagerStandard
117 } // namespace OHOS
118