components/safe_json/safe_json_parser_impl.h

   1 // Copyright 2013 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 #ifndef COMPONENTS_SAFE_JSON_SAFE_JSON_PARSER_IMPL_H_
   6 #define COMPONENTS_SAFE_JSON_SAFE_JSON_PARSER_IMPL_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "components/safe_json/safe_json_parser.h"
  13 #include "content/public/browser/utility_process_host_client.h"
  14
  15 namespace base {
  16 class ListValue;
  17 class SequencedTaskRunner;
  18 class Value;
  19 }
  20
  21 namespace IPC {
  22 class Message;
  23 }
  24
  25 namespace safe_json {
  26
  27 class SafeJsonParserImpl : public content::UtilityProcessHostClient,
  28                            public SafeJsonParser {
  29  public:
  30   SafeJsonParserImpl(const std::string& unsafe_json,
  31                      const SuccessCallback& success_callback,
  32                      const ErrorCallback& error_callback);
  33
  34  private:
  35   ~SafeJsonParserImpl() override;
  36
  37   void StartWorkOnIOThread();
  38
  39   void OnJSONParseSucceeded(const base::ListValue& wrapper);
  40   void OnJSONParseFailed(const std::string& error_message);
  41
  42   void ReportResults();
  43   void ReportResultsOnOriginThread();
  44
  45   // Implementing pieces of the UtilityProcessHostClient interface.
  46   bool OnMessageReceived(const IPC::Message& message) override;
  47
  48   // SafeJsonParser implementation.
  49   void Start() override;
  50
  51   const std::string unsafe_json_;
  52   SuccessCallback success_callback_;
  53   ErrorCallback error_callback_;
  54   scoped_refptr<base::SequencedTaskRunner> caller_task_runner_;
  55
  56   scoped_ptr<base::Value> parsed_json_;
  57   std::string error_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(SafeJsonParserImpl);
  60 };
  61
  62 }  // namespace safe_json
  63
  64 #endif  // COMPONENTS_SAFE_JSON_SAFE_JSON_PARSER_IMPL_H_