1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_INSTALLD_CRATE_INFO_MANAGER_H 18 #define ANDROID_INSTALLD_CRATE_INFO_MANAGER_H 19 20 #ifdef ENABLE_STORAGE_CRATES 21 22 #include <android/os/storage/CrateMetadata.h> 23 #include <cutils/multiuser.h> 24 #include <fts.h> 25 #include <sys/stat.h> 26 #include <sys/types.h> 27 28 #include <memory> 29 #include <string> 30 #include <vector> 31 32 #ifndef CRATE_DEBUG 33 #define CRATE_DEBUG 1 34 #endif 35 36 namespace android { 37 namespace installd { 38 39 using android::os::storage::CrateMetadata; 40 41 /** 42 * The crated folder actually is a folder that is the first level child director. In order to 43 * distingish between the crated folder and the other FTSENT*, to define the type "CratedFolder" 44 * make the code easy to identify the difference. 45 */ 46 typedef FTSENT* CratedFolder; 47 48 /** 49 * In order to give the users more fine-grained files controlling, the crate information can help 50 * applications' developers to show the more detail information to the users. The crate information 51 * include the Label, Expiration etc.. 52 */ 53 class CrateManager { 54 public: 55 CrateManager(const char* uuid, userid_t userId, const std::string& packageName); 56 ~CrateManager(); 57 58 void traverseAllCrates(std::function<void(CratedFolder, std::unique_ptr<CrateMetadata>&)>& onCreateCrate); 59 60 static void traverseChildDir(const std::string& targetDir, 61 std::function<void(FTSENT*)>& onVisitChildDir); 62 63 static void traverseAllPackagesForUser( 64 const std::unique_ptr<std::string>& uuid, 65 userid_t userId, 66 std::function<void(FTSENT*)>& onHandlingPackage); 67 68 #if CRATE_DEBUG 69 static void dump(std::unique_ptr<CrateMetadata>& CrateMetadata); 70 #endif 71 private: 72 std::string mRoot; 73 std::string mCratedFoldersRoot; 74 std::string mPackageName; 75 76 void createCrate( 77 CratedFolder cratedFolder, 78 std::function<void(CratedFolder, std::unique_ptr<CrateMetadata>&)>& onCreateCrate); 79 }; 80 81 } // namespace installd 82 } // namespace android 83 84 #else // ENABLE_STORAGE_CRATES 85 #include <android/os/storage/CrateMetadata.h> 86 using android::os::storage::CrateMetadata; 87 #endif // ENABLE_STORAGE_CRATES 88 89 #endif // ANDROID_INSTALLD_CRATE_INFO_MANAGER_H 90