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 "accessibilityelementoperatorstub_fuzzer.h"
17 #include "accessibility_element_operator_stub.h"
18 #include "securec.h"
19
20 namespace OHOS {
21 namespace Accessibility {
22 namespace {
23 constexpr size_t DATA_MIN_SIZE = 100;
24 constexpr char END_CHAR = '\0';
25 constexpr size_t LEN = 10;
26 }
27
28 class ElementOperatorImplFuzzTest : public AccessibilityElementOperatorStub {
29 public:
30 ElementOperatorImplFuzzTest() = default;
31 ~ElementOperatorImplFuzzTest() = default;
32
SearchElementInfoByAccessibilityId(const int64_t elementId,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback,const int32_t mode,bool isFilter)33 void SearchElementInfoByAccessibilityId(const int64_t elementId, const int32_t requestId,
34 const sptr<IAccessibilityElementOperatorCallback> &callback, const int32_t mode,
35 bool isFilter) override {}
SearchElementInfosByText(const int64_t elementId,const std::string & text,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback)36 void SearchElementInfosByText(const int64_t elementId, const std::string &text,
37 const int32_t requestId, const sptr<IAccessibilityElementOperatorCallback> &callback) override {}
FindFocusedElementInfo(const int64_t elementId,const int32_t focusType,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback)38 void FindFocusedElementInfo(const int64_t elementId, const int32_t focusType, const int32_t requestId,
39 const sptr<IAccessibilityElementOperatorCallback> &callback) override {}
FocusMoveSearch(const int64_t elementId,const int32_t direction,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback)40 void FocusMoveSearch(const int64_t elementId, const int32_t direction, const int32_t requestId,
41 const sptr<IAccessibilityElementOperatorCallback> &callback) override {}
ExecuteAction(const int64_t elementId,const int32_t action,const std::map<std::string,std::string> & actionArguments,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback)42 void ExecuteAction(const int64_t elementId, const int32_t action,
43 const std::map<std::string, std::string> &actionArguments,
44 const int32_t requestId, const sptr<IAccessibilityElementOperatorCallback> &callback) override {}
GetCursorPosition(const int64_t elementId,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback)45 void GetCursorPosition(const int64_t elementId, const int32_t requestId,
46 const sptr<IAccessibilityElementOperatorCallback> &callback) override {}
ClearFocus()47 void ClearFocus() override {}
OutsideTouch()48 void OutsideTouch() override {}
SetChildTreeIdAndWinId(const int64_t elementId,const int32_t treeId,const int32_t childWindowId)49 void SetChildTreeIdAndWinId(const int64_t elementId, const int32_t treeId,
50 const int32_t childWindowId) override {}
SetBelongTreeId(const int32_t treeId)51 void SetBelongTreeId(const int32_t treeId) override {}
SetParentWindowId(const int32_t parentWindowId)52 void SetParentWindowId(const int32_t parentWindowId) override {}
53 };
54
55 template<class T>
GetData(T & object,const uint8_t * databuffer,size_t size)56 size_t GetData(T &object, const uint8_t *databuffer, size_t size)
57 {
58 size_t objectSize = sizeof(object);
59 if (objectSize > size) {
60 return 0;
61 }
62 return memcpy_s(&object, objectSize, databuffer, objectSize) == EOK ? objectSize : 0;
63 }
64
EleOperatorOnRemoteRequestFuzzTest(const uint8_t * databuffer,size_t size)65 bool EleOperatorOnRemoteRequestFuzzTest(const uint8_t* databuffer, size_t size)
66 {
67 if (databuffer == nullptr || size < DATA_MIN_SIZE) {
68 return false;
69 }
70
71 size_t position = 0;
72 uint32_t code = 0;
73 MessageParcel eleOperatorData;
74 MessageParcel eleOperatorReply;
75 MessageOption option(MessageOption::TF_SYNC);
76
77 GetData<uint32_t>(code, &databuffer[position], size - position);
78 ElementOperatorImplFuzzTest callBack;
79 eleOperatorData.WriteInterfaceToken(ElementOperatorImplFuzzTest::GetDescriptor());
80 callBack.OnRemoteRequest(code, eleOperatorData, eleOperatorReply, option);
81 return true;
82 }
83 } // namespace Accessibility
84 } // namespace OHOS
85
86 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)87 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
88 {
89 /* Run your code on data */
90 OHOS::Accessibility::EleOperatorOnRemoteRequestFuzzTest(data, size);
91 return 0;
92 }