1 /* ScummVM - Graphic Adventure Engine 2 * 3 * ScummVM is the legal property of its developers, whose names 4 * are too numerous to list here. Please refer to the COPYRIGHT 5 * file distributed with this source distribution. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef BACKENDS_NETWORKING_CURL_CURLJSONREQUEST_H 24 #define BACKENDS_NETWORKING_CURL_CURLJSONREQUEST_H 25 26 #include "backends/networking/curl/curlrequest.h" 27 #include "common/memstream.h" 28 #include "common/json.h" 29 30 namespace Networking { 31 32 typedef Response<Common::JSONValue *> JsonResponse; 33 typedef Common::BaseCallback<JsonResponse> *JsonCallback; 34 35 #define CURL_JSON_REQUEST_BUFFER_SIZE 512 * 1024 36 37 class CurlJsonRequest: public CurlRequest { 38 protected: 39 JsonCallback _jsonCallback; 40 Common::MemoryWriteStreamDynamic _contentsStream; 41 byte *_buffer; 42 43 /** Prepares raw bytes from _contentsStream to be parsed with Common::JSON::parse(). */ 44 char *getPreparedContents(); 45 46 /** Sets FINISHED state and passes the JSONValue * into user's callback in JsonResponse. */ 47 virtual void finishJson(Common::JSONValue *json); 48 49 public: 50 CurlJsonRequest(JsonCallback cb, ErrorCallback ecb, Common::String url); 51 virtual ~CurlJsonRequest(); 52 53 virtual void handle(); 54 virtual void restart(); 55 56 static bool jsonIsObject(Common::JSONValue *item, const char *warningPrefix); 57 static bool jsonContainsObject(Common::JSONObject &item, const char *key, const char *warningPrefix, bool isOptional = false); 58 static bool jsonContainsString(Common::JSONObject &item, const char *key, const char *warningPrefix, bool isOptional = false); 59 static bool jsonContainsIntegerNumber(Common::JSONObject &item, const char *key, const char *warningPrefix, bool isOptional = false); 60 static bool jsonContainsArray(Common::JSONObject &item, const char *key, const char *warningPrefix, bool isOptional = false); 61 static bool jsonContainsStringOrIntegerNumber(Common::JSONObject &item, const char *key, const char *warningPrefix, bool isOptional = false); 62 static bool jsonContainsAttribute(Common::JSONObject &item, const char *key, const char *warningPrefix, bool isOptional = false); 63 }; 64 65 } // End of namespace Networking 66 67 #endif 68