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 JSON_ASSET_LOADER_H_ 17 #define JSON_ASSET_LOADER_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 #include "protos/license_protos.pb.h" 24 25 #include "jsmn.h" 26 27 namespace android { 28 struct ABuffer; 29 30 namespace clearkeycas { 31 32 class JsonAssetLoader { 33 public: 34 JsonAssetLoader(); 35 virtual ~JsonAssetLoader(); 36 37 status_t extractAssetFromString( 38 const String8& jsonAssetString, Asset *asset); 39 40 private: 41 Vector<jsmntok_t> mJsmnTokens; 42 Vector<String8> mJsonObjects; 43 Vector<String8> mTokens; 44 45 static sp<ABuffer> decodeBase64String( 46 const String8& encodedText); 47 bool findKey(const String8& jsonObject, Asset *asset); 48 void findValue( 49 const String8 &key, String8* value); 50 bool parseJsonObject( 51 const String8& jsonObject, Vector<String8>* tokens); 52 bool parseJsonAssetString( 53 const String8& jsonString, Vector<String8>* jsonObjects); 54 55 DISALLOW_EVIL_CONSTRUCTORS(JsonAssetLoader); 56 }; 57 58 } // namespace clearkeycas 59 } // namespace android 60 61 #endif // JSON_ASSET_LOADER_H_ 62