ClearKeyPersistence.h (1780B)
1 /* 2 * Copyright 2015, Mozilla Foundation and contributors 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 __ClearKeyPersistence_h__ 18 #define __ClearKeyPersistence_h__ 19 20 // This include is required in order for content_decryption_module to work 21 // on Unix systems. 22 23 #include <functional> 24 #include <set> 25 #include <string> 26 27 #include "RefCounted.h" 28 #include "content_decryption_module.h" 29 30 class ClearKeySessionManager; 31 32 // Whether we've loaded the persistent session ids yet. 33 enum PersistentKeyState { UNINITIALIZED, LOADING, LOADED }; 34 35 class ClearKeyPersistence : public RefCounted { 36 public: 37 explicit ClearKeyPersistence(cdm::Host_11* aHost); 38 39 void EnsureInitialized(bool aPersistentStateAllowed, 40 std::function<void()>&& aOnInitialized); 41 42 bool IsLoaded() const; 43 44 std::string GetNewSessionId(cdm::SessionType aSessionType); 45 46 bool IsPersistentSessionId(const std::string& aSid); 47 48 void PersistentSessionRemoved(std::string& aSid); 49 50 private: 51 cdm::Host_11* mHost = nullptr; 52 53 PersistentKeyState mPersistentKeyState = PersistentKeyState::UNINITIALIZED; 54 55 std::set<uint32_t> mPersistentSessionIds; 56 57 void ReadAllRecordsFromIndex(std::function<void()>&& aOnComplete); 58 void WriteIndex(); 59 }; 60 61 #endif // __ClearKeyPersistence_h__