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 "plugin_loader.h"
17
18 #include <dlfcn.h>
19 #include <unistd.h>
20 #include <vector>
21
22 #include "utils_log.h"
23
24 namespace OHOS::FileManagement::CloudFile {
25 using namespace std;
26
GetInstance()27 PluginLoader &PluginLoader::GetInstance()
28 {
29 static PluginLoader instance;
30 return instance;
31 }
32
~PluginLoader()33 PluginLoader::~PluginLoader()
34 {
35 if (cloudKitPulginHandle_ == nullptr) {
36 return;
37 }
38 dlclose(cloudKitPulginHandle_);
39 LOGI("succ to unload plugin");
40 cloudKitPulginHandle_ = nullptr;
41 }
42
GetPluginPath(const string & pluginFileName)43 string GetPluginPath(const string &pluginFileName)
44 {
45 const string searchDirs[] = {"/system/lib64/", "system/lib/"};
46 string pluginFilePath = "";
47 for (auto &searchDir : searchDirs) {
48 std::string tmpPath = searchDir + pluginFileName;
49 if (access(tmpPath.c_str(), F_OK) == 0) {
50 pluginFilePath = tmpPath;
51 break;
52 }
53 }
54 return pluginFilePath;
55 }
56
LoadCloudKitPlugin(bool isSupportCloudSync)57 void PluginLoader::LoadCloudKitPlugin(bool isSupportCloudSync)
58 {
59 std::vector<std::string> pluginFileNames;
60 pluginFileNames.emplace_back(isSupportCloudSync ? "libcloudfile_ext.z.so" : "libcloudfile_ext_core.z.so");
61 pluginFileNames.emplace_back("libcloud_adapter.z.so");
62 for (auto &pluginFileName : pluginFileNames) {
63 auto pluginFilePath = GetPluginPath(pluginFileName);
64 if (!pluginFilePath.empty()) {
65 char resolvedPath[PATH_MAX] = {'\0'};
66 if (realpath(pluginFilePath.c_str(), resolvedPath) == nullptr) {
67 LOGE("realpath failed in line path: %s", pluginFilePath.c_str());
68 return;
69 }
70 cloudKitPulginHandle_ = dlopen(pluginFilePath.c_str(), RTLD_LAZY);
71 if (cloudKitPulginHandle_ == nullptr) {
72 LOGE("dlopen failed, path:%{public}s", pluginFilePath.c_str());
73 } else {
74 LOGI("succ to load plugin, path:%{public}s", pluginFilePath.c_str());
75 }
76 return;
77 }
78 }
79 LOGE("Load CloudKit Plugin failed");
80 }
81 } // namespace OHOS::FileManagement::CloudFile