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