1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "chrome/common/web_resource/web_resource_unpacker.h" 6 7 #include "base/json/json_reader.h" 8 #include "base/values.h" 9 10 const char* WebResourceUnpacker::kInvalidDataTypeError = 11 "Data from web resource server is missing or not valid JSON."; 12 13 const char* WebResourceUnpacker::kUnexpectedJSONFormatError = 14 "Data from web resource server does not have expected format."; 15 WebResourceUnpacker(const std::string & resource_data)16WebResourceUnpacker::WebResourceUnpacker(const std::string &resource_data) 17 : resource_data_(resource_data) { 18 } 19 ~WebResourceUnpacker()20WebResourceUnpacker::~WebResourceUnpacker() { 21 } 22 23 // TODO(mrc): Right now, this reads JSON data from the experimental popgadget 24 // server. Change so the format is based on a template, once we have 25 // decided on final server format. Run()26bool WebResourceUnpacker::Run() { 27 scoped_ptr<Value> value; 28 if (!resource_data_.empty()) { 29 value.reset(base::JSONReader::Read(resource_data_, false)); 30 if (!value.get()) { 31 // Page information not properly read, or corrupted. 32 error_message_ = kInvalidDataTypeError; 33 return false; 34 } 35 if (!value->IsType(Value::TYPE_DICTIONARY)) { 36 error_message_ = kUnexpectedJSONFormatError; 37 return false; 38 } 39 parsed_json_.reset(static_cast<DictionaryValue*>(value.release())); 40 return true; 41 } 42 error_message_ = kInvalidDataTypeError; 43 return false; 44 } 45 46