components/safe_json/safe_json_parser_android.cc

   1 // Copyright 2015 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 "components/safe_json/safe_json_parser_android.h"
   6
   7 #include "base/bind.h"
   8 #include "base/json/json_reader.h"
   9 #include "base/values.h"
  10 #include "components/safe_json/json_sanitizer.h"
  11
  12 namespace safe_json {
  13
  14 SafeJsonParserAndroid::SafeJsonParserAndroid(
  15     const std::string& unsafe_json,
  16     const SuccessCallback& success_callback,
  17     const ErrorCallback& error_callback)
  18     : unsafe_json_(unsafe_json),
  19       success_callback_(success_callback),
  20       error_callback_(error_callback) {}
  21
  22 SafeJsonParserAndroid::~SafeJsonParserAndroid() {}
  23
  24 void SafeJsonParserAndroid::Start() {
  25   JsonSanitizer::Sanitize(
  26       unsafe_json_,
  27       base::Bind(&SafeJsonParserAndroid::OnSanitizationSuccess,
  28                  base::Unretained(this)),
  29       base::Bind(&SafeJsonParserAndroid::OnSanitizationError,
  30                  base::Unretained(this)));
  31 }
  32
  33 void SafeJsonParserAndroid::OnSanitizationSuccess(
  34     const std::string& sanitized_json) {
  35   // Self-destruct at the end of this method.
  36   scoped_ptr<SafeJsonParserAndroid> deleter(this);
  37
  38   int error_code;
  39   std::string error;
  40   scoped_ptr<base::Value> value = base::JSONReader::ReadAndReturnError(
  41       sanitized_json, base::JSON_PARSE_RFC, &error_code, &error);
  42
  43   if (!value) {
  44     error_callback_.Run(error);
  45     return;
  46   }
  47
  48   success_callback_.Run(value.Pass());
  49 }
  50
  51 void SafeJsonParserAndroid::OnSanitizationError(const std::string& error) {
  52   error_callback_.Run(error);
  53   delete this;
  54 }
  55
  56 }  // namespace safe_json