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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This class is called by the WebResourceService in a sandboxed process
// to unpack data retrieved from a web resource feed. Right now, it
// takes a string of data in JSON format, parses it, and hands it back
// to the WebResourceService as a list of items. In the future
// it will be set up to unpack and verify image data in addition to
// just parsing a JSON feed.
#ifndef CHROME_UTILITY_WEB_RESOURCE_UNPACKER_H_
#define CHROME_UTILITY_WEB_RESOURCE_UNPACKER_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
namespace base {
class DictionaryValue;
}
class WebResourceUnpacker {
public:
static const char* kInvalidDataTypeError;
static const char* kUnexpectedJSONFormatError;
explicit WebResourceUnpacker(const std::string &resource_data);
~WebResourceUnpacker();
// This does the actual parsing. In case of an error, error_message_
// is set to an appropriate value.
bool Run();
// Returns the last error message set by Run().
const std::string& error_message() { return error_message_; }
// Gets data which has been parsed by Run().
base::DictionaryValue* parsed_json() {
return parsed_json_.get();
}
private:
// Holds the string which is to be parsed.
std::string resource_data_;
// Holds the result of JSON parsing of resource_data_.
scoped_ptr<base::DictionaryValue> parsed_json_;
// Holds the last error message produced by Run().
std::string error_message_;
DISALLOW_COPY_AND_ASSIGN(WebResourceUnpacker);
};
#endif // CHROME_UTILITY_WEB_RESOURCE_UNPACKER_H_