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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // This class is called by the WebResourceService in a sandboxed process | 5 // This class is called by the WebResourceService in a sandboxed process |
| 6 // to unpack data retrieved from a web resource feed. Right now, it | 6 // to unpack data retrieved from a web resource feed. Right now, it |
| 7 // takes a string of data in JSON format, parses it, and hands it back | 7 // takes a string of data in JSON format, parses it, and hands it back |
| 8 // to the WebResourceService as a list of items. In the future | 8 // to the WebResourceService as a list of items. In the future |
| 9 // it will be set up to unpack and verify image data in addition to | 9 // it will be set up to unpack and verify image data in addition to |
| 10 // just parsing a JSON feed. | 10 // just parsing a JSON feed. |
| 11 | 11 |
| 12 #ifndef CHROME_COMMON_WEB_RESOURCE_WEB_RESOURCE_UNPACKER_H_ | 12 #ifndef CHROME_COMMON_WEB_RESOURCE_WEB_RESOURCE_UNPACKER_H_ |
| 13 #define CHROME_COMMON_WEB_RESOURCE_WEB_RESOURCE_UNPACKER_H_ | 13 #define CHROME_COMMON_WEB_RESOURCE_WEB_RESOURCE_UNPACKER_H_ |
| 14 #pragma once | 14 #pragma once |
| 15 | 15 |
| 16 #include <string> | 16 #include <string> |
| 17 | 17 |
| 18 #include "base/basictypes.h" | 18 #include "base/basictypes.h" |
| 19 #include "base/scoped_ptr.h" | 19 #include "base/scoped_ptr.h" |
| 20 | 20 |
| 21 class DictionaryValue; | 21 class DictionaryValue; |
| 22 | 22 |
| 23 class WebResourceUnpacker { | 23 class WebResourceUnpacker { |
| 24 public: | 24 public: |
| 25 static const char* kInvalidDataTypeError; | 25 static const char* kInvalidDataTypeError; |
| 26 static const char* kUnexpectedJSONFormatError; | 26 static const char* kUnexpectedJSONFormatError; |
| 27 | 27 |
| 28 explicit WebResourceUnpacker(const std::string &resource_data) | 28 explicit WebResourceUnpacker(const std::string &resource_data); |
| 29 : resource_data_(resource_data) {} | 29 ~WebResourceUnpacker(); |
| 30 | 30 |
| 31 // This does the actual parsing. In case of an error, error_message_ | 31 // This does the actual parsing. In case of an error, error_message_ |
| 32 // is set to an appropriate value. | 32 // is set to an appropriate value. |
| 33 bool Run(); | 33 bool Run(); |
| 34 | 34 |
| 35 // Returns the last error message set by Run(). | 35 // Returns the last error message set by Run(). |
| 36 const std::string& error_message() { return error_message_; } | 36 const std::string& error_message() { return error_message_; } |
| 37 | 37 |
| 38 // Gets data which has been parsed by Run(). | 38 // Gets data which has been parsed by Run(). |
| 39 DictionaryValue* parsed_json() { | 39 DictionaryValue* parsed_json() { |
| 40 return parsed_json_.get(); | 40 return parsed_json_.get(); |
| 41 } | 41 } |
| 42 | 42 |
| 43 private: | 43 private: |
| 44 // Holds the string which is to be parsed. | 44 // Holds the string which is to be parsed. |
| 45 std::string resource_data_; | 45 std::string resource_data_; |
| 46 | 46 |
| 47 // Holds the result of JSON parsing of resource_data_. | 47 // Holds the result of JSON parsing of resource_data_. |
| 48 scoped_ptr<DictionaryValue> parsed_json_; | 48 scoped_ptr<DictionaryValue> parsed_json_; |
| 49 | 49 |
| 50 // Holds the last error message produced by Run(). | 50 // Holds the last error message produced by Run(). |
| 51 std::string error_message_; | 51 std::string error_message_; |
| 52 | 52 |
| 53 DISALLOW_COPY_AND_ASSIGN(WebResourceUnpacker); | 53 DISALLOW_COPY_AND_ASSIGN(WebResourceUnpacker); |
| 54 }; | 54 }; |
| 55 | 55 |
| 56 #endif // CHROME_COMMON_WEB_RESOURCE_WEB_RESOURCE_UNPACKER_H_ | 56 #endif // CHROME_COMMON_WEB_RESOURCE_WEB_RESOURCE_UNPACKER_H_ |
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