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1 /*
2  * Copyright (c) 2024 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 "napi_util.h"
17 
18 #include "napi/native_api.h"
19 #include "napi/native_node_api.h"
20 #include "hilog/log.h"
21 
22 namespace OHOS {
23 namespace HiviewDFX {
24 namespace {
25 #undef LOG_DOMAIN
26 #define LOG_DOMAIN 0xD002D0A
27 #undef LOG_TAG
28 #define LOG_TAG "NapiUtil"
29 constexpr int ONE_VALUE_LIMIT = 1;
30 const std::string DEFAULT_FILENAME = "undefined";
31 }
32 
CreateErrorMessage(napi_env env,const std::string & msg)33 napi_value CreateErrorMessage(napi_env env, const std::string& msg)
34 {
35     napi_value result = nullptr;
36     napi_value message = nullptr;
37     napi_create_string_utf8(env, msg.data(), msg.size(), &message);
38     napi_create_error(env, nullptr, message, &result);
39     return result;
40 }
41 
CreateErrorMessage(napi_env env,const std::string & errCode,const std::string & msg)42 napi_value CreateErrorMessage(napi_env env, const std::string& errCode, const std::string& msg)
43 {
44     napi_value result = nullptr;
45     napi_value message = nullptr;
46     napi_value code = nullptr;
47     napi_create_string_utf8(env, errCode.data(), errCode.size(), &code);
48     napi_create_string_utf8(env, msg.data(), msg.size(), &message);
49     napi_create_error(env, code, message, &result);
50     return result;
51 }
52 
CreateUndefined(napi_env env)53 napi_value CreateUndefined(napi_env env)
54 {
55     napi_value res = nullptr;
56     napi_get_undefined(env, &res);
57     return res;
58 }
59 
MatchValueType(napi_env env,napi_value value,napi_valuetype targetType)60 bool MatchValueType(napi_env env, napi_value value, napi_valuetype targetType)
61 {
62     napi_valuetype valueType = napi_undefined;
63     if (napi_typeof(env, value, &valueType) != napi_ok) {
64         return false;
65     }
66     return valueType == targetType;
67 }
68 
GetNapiArrayLength(napi_env env,napi_value value,uint32_t & ret)69 bool GetNapiArrayLength(napi_env env, napi_value value, uint32_t& ret)
70 {
71     bool isArray = false;
72     if (napi_is_array(env, value, &isArray) != napi_ok || !isArray) {
73         return false;
74     }
75     return napi_get_array_length(env, value, &ret) == napi_ok;
76 }
77 
GetNapiInt32Value(napi_env env,napi_value value,int32_t & ret)78 bool GetNapiInt32Value(napi_env env, napi_value value, int32_t& ret)
79 {
80     if (MatchValueType(env, value, napi_number)) {
81         return napi_get_value_int32(env, value, &ret) == napi_ok;
82     }
83     return false;
84 }
85 
GetNapiUint32Value(napi_env env,napi_value value,uint32_t & ret)86 bool GetNapiUint32Value(napi_env env, napi_value value, uint32_t& ret)
87 {
88     if (MatchValueType(env, value, napi_number)) {
89         return napi_get_value_uint32(env, value, &ret) == napi_ok;
90     }
91     return false;
92 }
93 
GetNapiDoubleValue(napi_env env,napi_value value,double & ret)94 bool GetNapiDoubleValue(napi_env env, napi_value value, double& ret)
95 {
96     if (MatchValueType(env, value, napi_number)) {
97         return napi_get_value_double(env, value, &ret) == napi_ok;
98     }
99     return false;
100 }
101 
GetNapiBoolValue(napi_env env,napi_value value,bool & ret)102 bool GetNapiBoolValue(napi_env env, napi_value value, bool& ret)
103 {
104     if (MatchValueType(env, value, napi_boolean)) {
105         return napi_get_value_bool(env, value, &ret) == napi_ok;
106     }
107     return false;
108 }
109 
GetNapiStringValue(napi_env env,napi_value value,std::string & ret,size_t maxSize)110 bool GetNapiStringValue(napi_env env, napi_value value, std::string& ret, size_t maxSize)
111 {
112     if (!MatchValueType(env, value, napi_string)) {
113         HILOG_ERROR(LOG_CORE, "Type error, should be string type!");
114         return false;
115     }
116     size_t bufLen = 0;
117     napi_status status = napi_get_value_string_utf8(env, value, nullptr, 0, &bufLen);
118     if (status != napi_ok) {
119         HILOG_ERROR(LOG_CORE, "Get input filename param length failed.");
120         return false;
121     }
122     if (bufLen > maxSize || bufLen == 0) {
123         HILOG_ERROR(LOG_CORE, "input filename param length is illegal.");
124         return false;
125     }
126     ret = std::string(bufLen, '\0');
127     return napi_get_value_string_utf8(env, value, &ret[0], bufLen + 1, &bufLen) == napi_ok;
128 }
129 
GetNapiObjectProperty(napi_env env,napi_value value,const std::string & propertyName,napi_value & ret)130 bool GetNapiObjectProperty(napi_env env, napi_value value, const std::string& propertyName, napi_value& ret)
131 {
132     bool hasProperty = false;
133     if (napi_has_named_property(env, value, propertyName.c_str(), &hasProperty) != napi_ok || !hasProperty) {
134         return false;
135     }
136     return napi_get_named_property(env, value, propertyName.c_str(), &ret) == napi_ok;
137 };
138 
GetTheOnlyStringParam(napi_env env,napi_callback_info info,std::string & fileName)139 bool GetTheOnlyStringParam(napi_env env, napi_callback_info info, std::string &fileName)
140 {
141     size_t argc = ONE_VALUE_LIMIT;
142     napi_value argv = nullptr;
143     napi_value thisVar = nullptr;
144     void *data = nullptr;
145     napi_get_cb_info(env, info, &argc, &argv, &thisVar, &data);
146     if (argc != ONE_VALUE_LIMIT) {
147         HILOG_ERROR(LOG_CORE, "invalid number = %{public}d of params.", ONE_VALUE_LIMIT);
148         return false;
149     }
150     constexpr int paramLen = 128;
151     return GetNapiStringValue(env, argv, fileName, paramLen);
152 }
153 
GetFileNameParam(napi_env env,napi_callback_info info)154 std::string GetFileNameParam(napi_env env, napi_callback_info info)
155 {
156     std::string fileName;
157     if (!GetTheOnlyStringParam(env, info, fileName)) {
158         return DEFAULT_FILENAME;
159     }
160     return fileName;
161 }
162 
CreatePromise(napi_env env,napi_value & promise)163 bool AsyncTask::CreatePromise(napi_env env, napi_value &promise)
164 {
165     if (napi_create_promise(env, &deferred_, &promise) != napi_ok) {
166         return false;
167     }
168     napi_value resourceName;
169     if (napi_create_string_utf8(env, resourceName_.c_str(), resourceName_.size(), &resourceName) != napi_ok) {
170         return false;
171     };
172     if (napi_create_async_work(env, nullptr, resourceName, ExecuteCallBack, CompletedCallBack,
173                                static_cast<void *>(this), &worker_) != napi_ok) {
174         return false;
175     }
176     return napi_queue_async_work(env, worker_) == napi_ok;
177 }
178 
ExecuteCallBack(napi_env env,void * data)179 void AsyncTask::ExecuteCallBack(napi_env env, void* data)
180 {
181     auto asyncTaskPtr = reinterpret_cast<AsyncTask *>(data);
182     asyncTaskPtr->Work(env);
183 }
184 
CompletedCallBack(napi_env env,napi_status status,void * data)185 void AsyncTask::CompletedCallBack(napi_env env, napi_status status, void* data)
186 {
187     auto asyncTaskPtr = reinterpret_cast<AsyncTask *>(data);
188     asyncTaskPtr->Done(env, status);
189     napi_delete_async_work(env, asyncTaskPtr->worker_);
190     delete asyncTaskPtr;
191 }
192 } // namespace HiviewDFX
193 } // namespace OHOS