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 {}
SearchDefaultFocusedByWindowId(const int32_t windowId,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback,const int32_t mode,bool isFilter=false)36 void SearchDefaultFocusedByWindowId(const int32_t windowId, const int32_t requestId,
37 const sptr<IAccessibilityElementOperatorCallback> &callback, const int32_t mode,
38 bool isFilter = false) override {};
SearchElementInfosByText(const int64_t elementId,const std::string & text,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback)39 void SearchElementInfosByText(const int64_t elementId, const std::string &text,
40 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)41 void FindFocusedElementInfo(const int64_t elementId, const int32_t focusType, const int32_t requestId,
42 const sptr<IAccessibilityElementOperatorCallback> &callback) override {}
FocusMoveSearch(const int64_t elementId,const int32_t direction,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback)43 void FocusMoveSearch(const int64_t elementId, const int32_t direction, const int32_t requestId,
44 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)45 void ExecuteAction(const int64_t elementId, const int32_t action,
46 const std::map<std::string, std::string> &actionArguments,
47 const int32_t requestId, const sptr<IAccessibilityElementOperatorCallback> &callback) override {}
GetCursorPosition(const int64_t elementId,const int32_t requestId,const sptr<IAccessibilityElementOperatorCallback> & callback)48 void GetCursorPosition(const int64_t elementId, const int32_t requestId,
49 const sptr<IAccessibilityElementOperatorCallback> &callback) override {}
ClearFocus()50 void ClearFocus() override {}
OutsideTouch()51 void OutsideTouch() override {}
SetChildTreeIdAndWinId(const int64_t elementId,const int32_t treeId,const int32_t childWindowId)52 void SetChildTreeIdAndWinId(const int64_t elementId, const int32_t treeId,
53 const int32_t childWindowId) override {}
SetBelongTreeId(const int32_t treeId)54 void SetBelongTreeId(const int32_t treeId) override {}
SetParentWindowId(const int32_t parentWindowId)55 void SetParentWindowId(const int32_t parentWindowId) override {}
56 };
57
58 template<class T>
GetData(T & object,const uint8_t * databuffer,size_t size)59 size_t GetData(T &object, const uint8_t *databuffer, size_t size)
60 {
61 size_t objectSize = sizeof(object);
62 if (objectSize > size) {
63 return 0;
64 }
65 return memcpy_s(&object, objectSize, databuffer, objectSize) == EOK ? objectSize : 0;
66 }
67
EleOperatorOnRemoteRequestFuzzTest(const uint8_t * databuffer,size_t size)68 bool EleOperatorOnRemoteRequestFuzzTest(const uint8_t* databuffer, size_t size)
69 {
70 if (databuffer == nullptr || size < DATA_MIN_SIZE) {
71 return false;
72 }
73
74 size_t position = 0;
75 uint32_t code = 0;
76 MessageParcel eleOperatorData;
77 MessageParcel eleOperatorReply;
78 MessageOption option(MessageOption::TF_SYNC);
79
80 GetData<uint32_t>(code, &databuffer[position], size - position);
81 ElementOperatorImplFuzzTest callBack;
82 eleOperatorData.WriteInterfaceToken(ElementOperatorImplFuzzTest::GetDescriptor());
83 callBack.OnRemoteRequest(code, eleOperatorData, eleOperatorReply, option);
84 return true;
85 }
86 } // namespace Accessibility
87 } // namespace OHOS
88
89 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)90 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
91 {
92 /* Run your code on data */
93 OHOS::Accessibility::EleOperatorOnRemoteRequestFuzzTest(data, size);
94 return 0;
95 }