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 "abilityfirstframestateobservermanager_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define protected public
22#include "ability_first_frame_state_observer_manager.h"
23#undef protected
24#include "permission_verification.h"
25#include "securec.h"
26
27using namespace OHOS::AAFwk;
28using namespace OHOS::AppExecFwk;
29
30namespace OHOS {
31namespace {
32constexpr int INPUT_ZERO = 0;
33constexpr int INPUT_ONE = 1;
34constexpr int INPUT_THREE = 3;
35constexpr size_t FOO_MAX_LEN = 1024;
36constexpr uint8_t ENABLE = 2;
37constexpr size_t U32_AT_SIZE = 4;
38constexpr size_t OFFSET_ZERO = 24;
39constexpr size_t OFFSET_ONE = 16;
40constexpr size_t OFFSET_TWO = 8;
41}  // namespace
42uint32_t GetU32Data(const char* ptr)
43{
44    // convert fuzz input data to an integer
45    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) |
46           (ptr[ENABLE] << OFFSET_TWO) | ptr[INPUT_THREE];
47}
48
49bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
50{
51    bool boolParam = *data % ENABLE;
52    std::string strParam(data, size);
53    std::shared_ptr<AbilityRecord> abilityRecord;
54    sptr<IRemoteBroker> observers;
55    sptr<IAbilityFirstFrameStateObserver> observer;
56    auto abilityFirstFrameStateObserverSet =
57        std::make_shared<AbilityFirstFrameStateObserverSet>(boolParam);
58    abilityFirstFrameStateObserverSet->AddAbilityFirstFrameStateObserver(
59        observer, strParam);
60    abilityFirstFrameStateObserverSet->RemoveAbilityFirstFrameStateObserver(observer);
61    abilityFirstFrameStateObserverSet->OnAbilityFirstFrameState(abilityRecord);
62    abilityFirstFrameStateObserverSet->AddObserverDeathRecipient(observers);
63    abilityFirstFrameStateObserverSet->RemoveObserverDeathRecipient(observers);
64    AbilityFirstFrameStateObserverManager& instance =
65        AbilityFirstFrameStateObserverManager::GetInstance();
66    instance.Init();
67    instance.RegisterAbilityFirstFrameStateObserver(observer, strParam);
68    instance.UnregisterAbilityFirstFrameStateObserver(observer);
69    instance.HandleOnFirstFrameState(abilityRecord);
70    return true;
71}
72}  // namespace OHOS
73
74/* Fuzzer entry point */
75extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
76{
77    /* Run your code on data */
78    if (data == nullptr) {
79        std::cout << "invalid data" << std::endl;
80        return 0;
81    }
82    /* Validate the length of size */
83    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
84        return 0;
85    }
86    char* ch = (char*)malloc(size + 1);
87    if (ch == nullptr) {
88        std::cout << "malloc failed." << std::endl;
89        return 0;
90    }
91    (void)memset_s(ch, size + 1, 0x00, size + 1);
92    if (memcpy_s(ch, size + 1, data, size) != EOK) {
93        std::cout << "copy failed." << std::endl;
94        free(ch);
95        ch = nullptr;
96        return 0;
97    }
98    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
99    free(ch);
100    ch = nullptr;
101    return 0;
102}
103