1 /* 2 * Copyright (C) 2014 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 #ifndef CLEARKEY_JSON_WEB_KEY_H_ 17 #define CLEARKEY_JSON_WEB_KEY_H_ 18 19 #include <media/stagefright/foundation/ABase.h> 20 #include <utils/KeyedVector.h> 21 #include <utils/String8.h> 22 #include <utils/StrongPointer.h> 23 24 #include "jsmn.h" 25 #include "Utils.h" 26 #include "ClearKeyTypes.h" 27 28 namespace clearkeydrm { 29 30 using android::KeyedVector; 31 using android::sp; 32 using android::String8; 33 using android::Vector; 34 35 class JsonWebKey { 36 public: 37 JsonWebKey(); 38 virtual ~JsonWebKey(); 39 40 bool extractKeysFromJsonWebKeySet(const String8& jsonWebKeySet, 41 KeyMap* keys); 42 43 private: 44 Vector<jsmntok_t> mJsmnTokens; 45 Vector<String8> mJsonObjects; 46 Vector<String8> mTokens; 47 48 bool decodeBase64String(const String8& encodedText, 49 Vector<uint8_t>* decodedText); 50 bool findKey(const String8& jsonObject, String8* keyId, 51 String8* encodedKey); 52 void findValue(const String8 &key, String8* value); 53 bool isJsonWebKeySet(const String8& jsonObject) const; 54 bool parseJsonObject(const String8& jsonObject, Vector<String8>* tokens); 55 bool parseJsonWebKeySet(const String8& jsonWebKeySet, Vector<String8>* jsonObjects); 56 57 DISALLOW_EVIL_CONSTRUCTORS(JsonWebKey); 58 }; 59 60 } // namespace clearkeydrm 61 62 #endif // CLEARKEY_JSON_WEB_KEY_H_ 63
