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 "executejavascriptcode_fuzzer.h"
17
18 #include <refbase.h>
19 #include <ui/rs_surface_node.h>
20
21 #include <cstdint>
22 #include <cstring>
23 #include <iosfwd>
24 #include <list>
25 #include <memory>
26 #include <new>
27 #include <unordered_map>
28
29 #include "nweb.h"
30 #include "nweb_adapter_helper.h"
31 #include "nweb_value_callback.h"
32 #include "nweb_web_message.h"
33
34 using namespace OHOS::Rosen;
35
36 namespace OHOS {
37 std::shared_ptr<OHOS::NWeb::NWeb> g_nweb = nullptr;
38 sptr<Surface> g_surface = nullptr;
39 std::unordered_map<std::string, std::string> g_argsMap;
40 const std::string ARG_URL = "--url";
41 const std::string ARG_DUMP = "--dump-path";
42 const std::string ARG_FRAME_INFO = "--frame-info";
43 const std::string ARG_ADD_WEB_ENGINE_ARG = "--add-args";
44 const std::string ARG_DELETE_WEB_ENGINE_ARG = "--delete-args";
45 const std::string ARG_MULTI_RENDER_PROCESS = "--multi-renderer-process";
46 const std::string ARG_NWEB_TEST_MOCK_BUNDLEPATH = "--bundle-installation-dir";
47 const std::string MOCK_INSTALLATION_DIR = "/data/app/el1/bundle/public/com.ohos.nweb";
48 const std::string ARG_WIDTH = "--width";
49 const std::string ARG_HEIGHT = "--height";
50
HasArg(const std::string & arg)51 bool HasArg(const std::string &arg)
52 {
53 return (!g_argsMap.empty()) && (g_argsMap.find(arg) != g_argsMap.end());
54 }
55
GetArgValue(const std::string & arg)56 std::string GetArgValue(const std::string &arg)
57 {
58 if (!HasArg(arg)) {
59 return "";
60 }
61 return g_argsMap.at(arg);
62 }
63
GetWebEngineArgs(const std::string & arg)64 std::list<std::string> GetWebEngineArgs(const std::string &arg)
65 {
66 std::string webEngineArgValue = GetArgValue(arg);
67 std::list<std::string> webEngineArgList;
68 if (webEngineArgValue.empty()) {
69 return webEngineArgList;
70 }
71 uint32_t start = 0;
72 uint32_t pos = 0;
73 while (pos < webEngineArgValue.size()) {
74 if (webEngineArgValue[pos] == ',') {
75 webEngineArgList.emplace_back(webEngineArgValue.substr(start, pos - start));
76 pos++;
77 start = pos;
78 } else {
79 pos++;
80 }
81 }
82 webEngineArgList.emplace_back(webEngineArgValue.substr(start, pos - start));
83 webEngineArgList.emplace_back(ARG_NWEB_TEST_MOCK_BUNDLEPATH + "=" + MOCK_INSTALLATION_DIR);
84 return webEngineArgList;
85 }
86
GetInitArgs()87 OHOS::NWeb::NWebInitArgs GetInitArgs()
88 {
89 OHOS::NWeb::NWebInitArgs initArgs = {
90 .dump_path = GetArgValue(ARG_DUMP),
91 .frame_info_dump = HasArg(ARG_FRAME_INFO) ? true : false,
92 .web_engine_args_to_add = GetWebEngineArgs(ARG_ADD_WEB_ENGINE_ARG),
93 .web_engine_args_to_delete = GetWebEngineArgs(ARG_DELETE_WEB_ENGINE_ARG),
94 .multi_renderer_process = HasArg(ARG_MULTI_RENDER_PROCESS) ? true : false,
95 };
96 return initArgs;
97 }
98
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)99 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
100 {
101 if ((data == nullptr) || (size == 0)) {
102 return true;
103 }
104 if (!g_surface) {
105 RSSurfaceNodeConfig config;
106 config.SurfaceNodeName = "webTestSurfaceName";
107 auto surfaceNode = RSSurfaceNode::Create(config, false);
108 if (surfaceNode == nullptr) {
109 return false;
110 }
111 g_surface = surfaceNode->GetSurface();
112 if (g_surface== nullptr) {
113 return false;
114 }
115 }
116 g_nweb = NWeb::NWebAdapterHelper::Instance().CreateNWeb(g_surface, GetInitArgs());
117 if (g_nweb == nullptr) {
118 return true;
119 }
120 std::string code((const char *)data, size);
121 std::shared_ptr<NWeb::NWebValueCallback<std::shared_ptr<NWeb::NWebMessage>>> callback;
122 g_nweb->ExecuteJavaScript(code, callback, false);
123 return true;
124 }
125 }
126
127 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)128 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
129 {
130 /* Run your code on data */
131 OHOS::DoSomethingInterestingWithMyAPI(data, size);
132 return 0;
133 }
134