1/*
2 * Copyright (C) 2021 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 "telephony_permission.h"
17
18#include "accesstoken_kit.h"
19#include "bundle_mgr_interface.h"
20#include "hilog_wrapper.h"
21#include "if_system_ability_manager.h"
22#include "ipc_skeleton.h"
23#include "iservice_registry.h"
24#include "system_ability_definition.h"
25#include "accesstoken_kit.h"
26#include "privacy_kit.h"
27
28#include "system_ability_definition.h"
29#include "tokenid_kit.h"
30
31namespace OHOS {
32namespace Telephony {
33using namespace Security::AccessToken;
34
35/**
36 * @brief Permission check by callingUid.
37 * @param permissionName permission name.
38 * @return Returns true on success, false on failure.
39 */
40bool TelephonyPermission::CheckPermission(const std::string &permissionName)
41{
42    if (permissionName.empty()) {
43        HILOG_ERROR("permission check failed, permission name is empty.");
44        return false;
45    }
46
47    auto callerToken = IPCSkeleton::GetCallingTokenID();
48    auto tokenType = AccessTokenKit::GetTokenTypeFlag(callerToken);
49    int result = PermissionState::PERMISSION_DENIED;
50    if (tokenType == ATokenTypeEnum::TOKEN_NATIVE) {
51        result = PermissionState::PERMISSION_GRANTED;
52    } else if (tokenType == ATokenTypeEnum::TOKEN_HAP) {
53        result = AccessTokenKit::VerifyAccessToken(callerToken, permissionName);
54    } else {
55        HILOG_ERROR("permission check failed");
56    }
57
58    if (permissionName == Permission::READ_CALL_LOG
59        || permissionName == Permission::READ_CONTACTS || permissionName == Permission::WRITE_CONTACTS
60        || permissionName == Permission::OHOS_PERMISSION_MANAGE_VOICEMAIL) {
61        if (tokenType == ATokenTypeEnum::TOKEN_HAP) {
62            bool status = result == PermissionState::PERMISSION_GRANTED;
63            int32_t successCount = status ? 1 : 0;
64            int32_t failCount = status ? 0 : 1;
65            int32_t ret = PrivacyKit::AddPermissionUsedRecord(callerToken, permissionName, successCount, failCount);
66            if (ret != 0) {
67                HILOG_ERROR("AddPermissionUsedRecord failed");
68            }
69        }
70    }
71
72    if (result != PermissionState::PERMISSION_GRANTED) {
73        HILOG_ERROR("permission check failed");
74        return false;
75    }
76    return true;
77}
78} // namespace Telephony
79} // namespace OHOS