1 /* 2 * Copyright (C) 2021 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 #pragma once 17 18 #include <errno.h> 19 #include <stdio.h> 20 #include <unistd.h> 21 22 #include <set> 23 #include <string> 24 #include <vector> 25 26 #include "ClearKeyTypes.h" 27 #include "MemoryFileSystem.h" 28 29 namespace clearkeydrm { 30 class OfflineFile; 31 class DeviceFiles { 32 public: 33 typedef enum { 34 kLicenseStateUnknown, 35 kLicenseStateActive, 36 kLicenseStateReleasing, 37 } LicenseState; 38 DeviceFiles()39 DeviceFiles(){}; ~DeviceFiles()40 virtual ~DeviceFiles(){}; 41 42 virtual bool StoreLicense(const std::string& keySetId, LicenseState state, 43 const std::string& keyResponse); 44 45 virtual bool RetrieveLicense(const std::string& key_set_id, LicenseState* state, 46 std::string* offlineLicense); 47 48 virtual bool LicenseExists(const std::string& keySetId); 49 50 virtual std::vector<std::string> ListLicenses() const; 51 52 virtual bool DeleteLicense(const std::string& keySetId); 53 54 virtual bool DeleteAllLicenses(); 55 56 private: 57 bool FileExists(const std::string& path) const; 58 ssize_t GetFileSize(const std::string& fileName) const; 59 bool RemoveFile(const std::string& fileName); 60 61 bool RetrieveHashedFile( 62 const std::string& fileName, 63 OfflineFile* deSerializedFile); 64 bool StoreFileRaw(const std::string& fileName, const std::string& serializedFile); 65 bool StoreFileWithHash(const std::string& fileName, const std::string& serializedFile); 66 67 MemoryFileSystem mFileHandle; 68 69 CLEARKEY_DISALLOW_COPY_AND_ASSIGN(DeviceFiles); 70 }; 71 72 } // namespace clearkeydrm 73