1 /* 2 * Copyright (C) 2018 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 "jsmn.h" 20 #include "Utils.h" 21 #include "ClearKeyTypes.h" 22 23 namespace android { 24 namespace hardware { 25 namespace drm { 26 namespace V1_4 { 27 namespace clearkey { 28 29 class JsonWebKey { 30 public: 31 JsonWebKey(); 32 virtual ~JsonWebKey(); 33 34 bool extractKeysFromJsonWebKeySet(const std::string& jsonWebKeySet, 35 KeyMap* keys); 36 37 private: 38 std::vector<jsmntok_t> mJsmnTokens; 39 std::vector<std::string> mJsonObjects; 40 std::vector<std::string> mTokens; 41 42 bool decodeBase64String(const std::string& encodedText, 43 std::vector<uint8_t>* decodedText); 44 bool findKey(const std::string& jsonObject, std::string* keyId, 45 std::string* encodedKey); 46 void findValue(const std::string &key, std::string* value); 47 bool isJsonWebKeySet(const std::string& jsonObject) const; 48 bool parseJsonObject(const std::string& jsonObject, 49 std::vector<std::string>* tokens); 50 bool parseJsonWebKeySet(const std::string& jsonWebKeySet, 51 std::vector<std::string>* jsonObjects); 52 53 CLEARKEY_DISALLOW_COPY_AND_ASSIGN(JsonWebKey); 54 }; 55 56 } // namespace clearkey 57 } // namespace V1_4 58 } // namespace drm 59 } // namespace hardware 60 } // namespace android 61 62 #endif // CLEARKEY_JSON_WEB_KEY_H_ 63