1/*
2 * Copyright (c) 2023 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 "common_func.h"
17
18#include <mutex>
19#include <vector>
20
21#include <singleton.h>
22#include "bundle_mgr_client.h"
23#include "bundle_mgr_proxy.h"
24#include "ipc_skeleton.h"
25#include "iservice_registry.h"
26#include "system_ability_definition.h"
27
28#include "log.h"
29#include "sandbox_helper.h"
30
31using namespace std;
32
33namespace OHOS {
34namespace AppFileService {
35using namespace OHOS::AppExecFwk;
36namespace {
37    const std::string FILE_SCHEME_PREFIX = "file://";
38    const char BACKFLASH = '/';
39    const std::string FILE_MANAGER_URI_HEAD = "/storage/";
40    const std::string FILE_MANAGER_AUTHORITY = "docs";
41    std::string g_bundleName = "";
42    std::mutex g_globalMutex;
43}
44static sptr<BundleMgrProxy> GetBundleMgrProxy()
45{
46    sptr<ISystemAbilityManager> systemAbilityManager =
47        SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
48    if (!systemAbilityManager) {
49        LOGE("fail to get system ability mgr.");
50        return nullptr;
51    }
52
53    sptr<IRemoteObject> remoteObject = systemAbilityManager->GetSystemAbility(BUNDLE_MGR_SERVICE_SYS_ABILITY_ID);
54    if (!remoteObject) {
55        LOGE("fail to get bundle manager proxy.");
56        return nullptr;
57    }
58
59    return iface_cast<BundleMgrProxy>(remoteObject);
60}
61
62bool CommonFunc::GetDirByBundleNameAndAppIndex(const std::string &bundleName, int32_t appIndex, std::string &dirName)
63{
64    auto bmsClient = DelayedSingleton<AppExecFwk::BundleMgrClient>::GetInstance();
65    if (bmsClient == nullptr) {
66        LOGE("bundleMgrClient is nullptr.");
67        return false;
68    }
69    auto bmsRet = bmsClient->GetDirByBundleNameAndAppIndex(bundleName, appIndex, dirName);
70    if (bmsRet != ERR_OK) {
71        LOGE("GetDirByBundleNameAndAppIndex failed, ret:%{public}d", bmsRet);
72        return false;
73    }
74    return true;
75}
76
77string CommonFunc::GetSelfBundleName()
78{
79    sptr<BundleMgrProxy> bundleMgrProxy = GetBundleMgrProxy();
80    if (!bundleMgrProxy) {
81        LOGE("GetSelfBundleName: bundle mgr proxy is nullptr.");
82        return "";
83    }
84
85    BundleInfo bundleInfo;
86    auto ret = bundleMgrProxy->GetBundleInfoForSelf(0, bundleInfo);
87    if (ret != ERR_OK) {
88        LOGE("GetSelfBundleName: bundleName get fail.");
89        return "";
90    }
91    string dirName = "" ;
92    if (GetDirByBundleNameAndAppIndex(bundleInfo.name, bundleInfo.appIndex, dirName)) {
93        return dirName;
94    }
95    return bundleInfo.name;
96}
97
98static void NormalizePath(string &path)
99{
100    if (path.size() == 0) {
101        return;
102    }
103
104    if (path[0] != BACKFLASH) {
105        path.insert(0, 1, BACKFLASH);
106    }
107}
108
109string CommonFunc::GetUriFromPath(const string &path)
110{
111    string realPath = path;
112    NormalizePath(realPath);
113
114    {
115        std::lock_guard<std::mutex> lock(g_globalMutex);
116        if (g_bundleName == "") {
117            g_bundleName = GetSelfBundleName();
118        }
119    }
120    string packageName = (path.find(FILE_MANAGER_URI_HEAD) == 0) ? FILE_MANAGER_AUTHORITY : g_bundleName;
121    realPath = FILE_SCHEME_PREFIX + packageName + SandboxHelper::Encode(realPath);
122    return realPath;
123}
124} // namespace AppFileService
125} // namespace OHOS
126
127