src/chrome/browser/safe_browsing/incident_reporting/preference_validation_delegate.cc

   1 // Copyright 2014 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/browser/safe_browsing/incident_reporting/preference_validation_delegate.h"
   6
   7 #include <string>
   8 #include <vector>
   9
  10 #include "base/callback.h"
  11 #include "base/json/json_writer.h"
  12 #include "chrome/browser/prefs/tracked/pref_hash_store_transaction.h"
  13 #include "chrome/browser/prefs/tracked/tracked_preference_helper.h"
  14 #include "chrome/common/safe_browsing/csd.pb.h"
  15
  16 namespace safe_browsing {
  17
  18 namespace {
  19
  20 typedef ClientIncidentReport_IncidentData_TrackedPreferenceIncident TPIncident;
  21 typedef ClientIncidentReport_IncidentData_TrackedPreferenceIncident_ValueState
  22     TPIncident_ValueState;
  23
  24 // Maps a PrefHashStoreTransaction::ValueState to a
  25 // TrackedPreferenceIncident::ValueState.
  26 TPIncident_ValueState MapValueState(
  27     PrefHashStoreTransaction::ValueState value_state) {
  28   switch (value_state) {
  29     case PrefHashStoreTransaction::CLEARED:
  30       return TPIncident::CLEARED;
  31     case PrefHashStoreTransaction::CHANGED:
  32       return TPIncident::CHANGED;
  33     case PrefHashStoreTransaction::UNTRUSTED_UNKNOWN_VALUE:
  34       return TPIncident::UNTRUSTED_UNKNOWN_VALUE;
  35     default:
  36       return TPIncident::UNKNOWN;
  37   }
  38 }
  39
  40 }  // namespace
  41
  42 PreferenceValidationDelegate::PreferenceValidationDelegate(
  43     const AddIncidentCallback& add_incident)
  44     : add_incident_(add_incident) {
  45 }
  46
  47 PreferenceValidationDelegate::~PreferenceValidationDelegate() {
  48 }
  49
  50 void PreferenceValidationDelegate::OnAtomicPreferenceValidation(
  51     const std::string& pref_path,
  52     const base::Value* value,
  53     PrefHashStoreTransaction::ValueState value_state,
  54     TrackedPreferenceHelper::ResetAction /* reset_action */) {
  55   TPIncident_ValueState proto_value_state = MapValueState(value_state);
  56   if (proto_value_state != TPIncident::UNKNOWN) {
  57     scoped_ptr<ClientIncidentReport_IncidentData> incident_data(
  58         new ClientIncidentReport_IncidentData());
  59     TPIncident* incident = incident_data->mutable_tracked_preference();
  60     incident->set_path(pref_path);
  61     if (!value ||
  62         (!value->GetAsString(incident->mutable_atomic_value()) &&
  63          !base::JSONWriter::Write(value, incident->mutable_atomic_value()))) {
  64       incident->clear_atomic_value();
  65     }
  66     incident->set_value_state(proto_value_state);
  67     add_incident_.Run(incident_data.Pass());
  68   }
  69 }
  70
  71 void PreferenceValidationDelegate::OnSplitPreferenceValidation(
  72     const std::string& pref_path,
  73     const base::DictionaryValue* /* dict_value */,
  74     const std::vector<std::string>& invalid_keys,
  75     PrefHashStoreTransaction::ValueState value_state,
  76     TrackedPreferenceHelper::ResetAction /* reset_action */) {
  77   TPIncident_ValueState proto_value_state = MapValueState(value_state);
  78   if (proto_value_state != TPIncident::UNKNOWN) {
  79     scoped_ptr<ClientIncidentReport_IncidentData> incident_data(
  80         new ClientIncidentReport_IncidentData());
  81     TPIncident* incident = incident_data->mutable_tracked_preference();
  82     incident->set_path(pref_path);
  83     for (std::vector<std::string>::const_iterator scan(invalid_keys.begin());
  84          scan != invalid_keys.end();
  85          ++scan) {
  86       incident->add_split_key(*scan);
  87     }
  88     incident->set_value_state(proto_value_state);
  89     add_incident_.Run(incident_data.Pass());
  90   }
  91 }
  92
  93 }  // namespace safe_browsing