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 "huks_napi_generate_key_item.h"
17
18 #include "securec.h"
19
20 #include "hks_api.h"
21 #include "hks_log.h"
22 #include "hks_mem.h"
23 #include "hks_param.h"
24 #include "hks_type.h"
25 #include "huks_napi_common_item.h"
26
27 namespace HuksNapiItem {
28 namespace {
29 constexpr int HUKS_NAPI_GETNRATEKEY_MIN_ARGS = 2;
30 constexpr int HUKS_NAPI_GENERATEKEY_MAX_ARGS = 3;
31 } // namespace
32
33 struct GenerateKeyAsyncContextT {
34 napi_async_work asyncWork = nullptr;
35 napi_deferred deferred = nullptr;
36 napi_ref callback = nullptr;
37
38 int32_t result = 0;
39 struct HksBlob *keyAlias = nullptr;
40 struct HksParamSet *paramSetIn = nullptr;
41 struct HksParamSet *paramSetOut = nullptr;
42 };
43 using GenerateKeyAsyncContext = GenerateKeyAsyncContextT *;
44
CreateGenerateKeyAsyncContext()45 static GenerateKeyAsyncContext CreateGenerateKeyAsyncContext()
46 {
47 GenerateKeyAsyncContext context = static_cast<GenerateKeyAsyncContext>(HksMalloc(sizeof(GenerateKeyAsyncContextT)));
48 if (context != nullptr) {
49 (void)memset_s(context, sizeof(GenerateKeyAsyncContextT), 0, sizeof(GenerateKeyAsyncContextT));
50 }
51 return context;
52 }
53
DeleteGenerateKeyAsyncContext(napi_env env,GenerateKeyAsyncContext & context)54 static void DeleteGenerateKeyAsyncContext(napi_env env, GenerateKeyAsyncContext &context)
55 {
56 if (context == nullptr) {
57 return;
58 }
59 DeleteCommonAsyncContext(env, context->asyncWork, context->callback, context->keyAlias, context->paramSetIn);
60 if (context->paramSetOut != nullptr) {
61 HksFreeParamSet(&context->paramSetOut);
62 }
63 HksFree(context);
64 context = nullptr;
65 }
66
GenerateKeyParseParams(napi_env env,napi_callback_info info,GenerateKeyAsyncContext context)67 static napi_value GenerateKeyParseParams(napi_env env, napi_callback_info info, GenerateKeyAsyncContext context)
68 {
69 size_t argc = HUKS_NAPI_GENERATEKEY_MAX_ARGS;
70 napi_value argv[HUKS_NAPI_GENERATEKEY_MAX_ARGS] = { 0 };
71 NAPI_CALL(env, napi_get_cb_info(env, info, &argc, argv, nullptr, nullptr));
72
73 if (argc < HUKS_NAPI_GETNRATEKEY_MIN_ARGS) {
74 napi_throw_error(env, std::to_string(HUKS_ERR_CODE_ILLEGAL_ARGUMENT).c_str(), "no enough params input");
75 HKS_LOG_E("no enough params");
76 return nullptr;
77 }
78
79 size_t index = 0;
80 napi_value result = ParseKeyAliasAndHksParamSet(env, argv, index, context->keyAlias, context->paramSetIn);
81 if (result == nullptr) {
82 HKS_LOG_E("generateKey parse params failed");
83 return nullptr;
84 }
85
86 index++;
87 if (index < argc) {
88 context->callback = GetCallback(env, argv[index]);
89 }
90
91 return GetInt32(env, 0);
92 }
93
GenerateKeyAsyncWork(napi_env env,GenerateKeyAsyncContext context)94 static napi_value GenerateKeyAsyncWork(napi_env env, GenerateKeyAsyncContext context)
95 {
96 napi_value promise = nullptr;
97 if (context->callback == nullptr) {
98 NAPI_CALL(env, napi_create_promise(env, &context->deferred, &promise));
99 }
100
101 napi_value resourceName = nullptr;
102 napi_create_string_latin1(env, "generateKeyAsyncWork", NAPI_AUTO_LENGTH, &resourceName);
103
104 napi_create_async_work(
105 env,
106 nullptr,
107 resourceName,
108 [](napi_env env, void *data) {
109 GenerateKeyAsyncContext napiContext = static_cast<GenerateKeyAsyncContext>(data);
110
111 napiContext->result = HksGenerateKey(napiContext->keyAlias,
112 napiContext->paramSetIn, napiContext->paramSetOut);
113 },
114 [](napi_env env, napi_status status, void *data) {
115 GenerateKeyAsyncContext napiContext = static_cast<GenerateKeyAsyncContext>(data);
116 HksSuccessReturnResult resultData;
117 SuccessReturnResultInit(resultData);
118 HksReturnNapiResult(env, napiContext->callback, napiContext->deferred, napiContext->result, resultData);
119 DeleteGenerateKeyAsyncContext(env, napiContext);
120 },
121 static_cast<void *>(context),
122 &context->asyncWork);
123
124 napi_status status = napi_queue_async_work(env, context->asyncWork);
125 if (status != napi_ok) {
126 DeleteGenerateKeyAsyncContext(env, context);
127 HKS_LOG_E("could not queue async work");
128 return nullptr;
129 }
130
131 if (context->callback == nullptr) {
132 return promise;
133 } else {
134 return GetNull(env);
135 }
136 }
137
HuksNapiItemGenerateKey(napi_env env,napi_callback_info info)138 napi_value HuksNapiItemGenerateKey(napi_env env, napi_callback_info info)
139 {
140 GenerateKeyAsyncContext context = CreateGenerateKeyAsyncContext();
141 if (context == nullptr) {
142 HKS_LOG_E("could not create context");
143 return nullptr;
144 }
145
146 napi_value result = GenerateKeyParseParams(env, info, context);
147 if (result == nullptr) {
148 HKS_LOG_E("could not parse params");
149 DeleteGenerateKeyAsyncContext(env, context);
150 return nullptr;
151 }
152
153 result = GenerateKeyAsyncWork(env, context);
154 if (result == nullptr) {
155 HKS_LOG_E("could not start async work");
156 DeleteGenerateKeyAsyncContext(env, context);
157 return nullptr;
158 }
159 return result;
160 }
161 } // namespace HuksNapi
162