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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 #include "components/user_prefs/tracked/tracked_atomic_preference.h" | 5 #include "services/preferences/tracked/tracked_atomic_preference.h" |
| 6 | 6 |
| 7 #include "base/values.h" | 7 #include "base/values.h" |
| 8 #include "components/user_prefs/tracked/pref_hash_store_transaction.h" | |
| 9 #include "services/preferences/public/interfaces/tracked_preference_validation_d
elegate.mojom.h" | 8 #include "services/preferences/public/interfaces/tracked_preference_validation_d
elegate.mojom.h" |
| 9 #include "services/preferences/tracked/pref_hash_store_transaction.h" |
| 10 |
| 11 using ValueState = |
| 12 prefs::mojom::TrackedPreferenceValidationDelegate::ValueState; |
| 10 | 13 |
| 11 TrackedAtomicPreference::TrackedAtomicPreference( | 14 TrackedAtomicPreference::TrackedAtomicPreference( |
| 12 const std::string& pref_path, | 15 const std::string& pref_path, |
| 13 size_t reporting_id, | 16 size_t reporting_id, |
| 14 size_t reporting_ids_count, | 17 size_t reporting_ids_count, |
| 15 PrefHashFilter::EnforcementLevel enforcement_level, | 18 prefs::mojom::TrackedPreferenceMetadata::EnforcementLevel enforcement_level, |
| 16 PrefHashFilter::ValueType value_type, | 19 prefs::mojom::TrackedPreferenceMetadata::ValueType value_type, |
| 17 prefs::mojom::TrackedPreferenceValidationDelegate* delegate) | 20 prefs::mojom::TrackedPreferenceValidationDelegate* delegate) |
| 18 : pref_path_(pref_path), | 21 : pref_path_(pref_path), |
| 19 helper_(pref_path, | 22 helper_(pref_path, |
| 20 reporting_id, | 23 reporting_id, |
| 21 reporting_ids_count, | 24 reporting_ids_count, |
| 22 enforcement_level, | 25 enforcement_level, |
| 23 value_type), | 26 value_type), |
| 24 delegate_(delegate) {} | 27 delegate_(delegate) {} |
| 25 | 28 |
| 26 TrackedPreferenceType TrackedAtomicPreference::GetType() const { | 29 TrackedPreferenceType TrackedAtomicPreference::GetType() const { |
| 27 return TrackedPreferenceType::ATOMIC; | 30 return TrackedPreferenceType::ATOMIC; |
| 28 } | 31 } |
| 29 | 32 |
| 30 void TrackedAtomicPreference::OnNewValue( | 33 void TrackedAtomicPreference::OnNewValue( |
| 31 const base::Value* value, | 34 const base::Value* value, |
| 32 PrefHashStoreTransaction* transaction) const { | 35 PrefHashStoreTransaction* transaction) const { |
| 33 transaction->StoreHash(pref_path_, value); | 36 transaction->StoreHash(pref_path_, value); |
| 34 } | 37 } |
| 35 | 38 |
| 36 bool TrackedAtomicPreference::EnforceAndReport( | 39 bool TrackedAtomicPreference::EnforceAndReport( |
| 37 base::DictionaryValue* pref_store_contents, | 40 base::DictionaryValue* pref_store_contents, |
| 38 PrefHashStoreTransaction* transaction, | 41 PrefHashStoreTransaction* transaction, |
| 39 PrefHashStoreTransaction* external_validation_transaction) const { | 42 PrefHashStoreTransaction* external_validation_transaction) const { |
| 40 const base::Value* value = NULL; | 43 const base::Value* value = NULL; |
| 41 pref_store_contents->Get(pref_path_, &value); | 44 pref_store_contents->Get(pref_path_, &value); |
| 42 PrefHashStoreTransaction::ValueState value_state = | 45 ValueState value_state = transaction->CheckValue(pref_path_, value); |
| 43 transaction->CheckValue(pref_path_, value); | |
| 44 helper_.ReportValidationResult(value_state, transaction->GetStoreUMASuffix()); | 46 helper_.ReportValidationResult(value_state, transaction->GetStoreUMASuffix()); |
| 45 | 47 |
| 46 PrefHashStoreTransaction::ValueState external_validation_value_state = | 48 ValueState external_validation_value_state = ValueState::UNSUPPORTED; |
| 47 PrefHashStoreTransaction::UNSUPPORTED; | |
| 48 if (external_validation_transaction) { | 49 if (external_validation_transaction) { |
| 49 external_validation_value_state = | 50 external_validation_value_state = |
| 50 external_validation_transaction->CheckValue(pref_path_, value); | 51 external_validation_transaction->CheckValue(pref_path_, value); |
| 51 helper_.ReportValidationResult( | 52 helper_.ReportValidationResult( |
| 52 external_validation_value_state, | 53 external_validation_value_state, |
| 53 external_validation_transaction->GetStoreUMASuffix()); | 54 external_validation_transaction->GetStoreUMASuffix()); |
| 54 } | 55 } |
| 55 | 56 |
| 56 if (delegate_) { | 57 if (delegate_) { |
| 57 delegate_->OnAtomicPreferenceValidation( | 58 delegate_->OnAtomicPreferenceValidation( |
| 58 pref_path_, value ? value->CreateDeepCopy() : nullptr, value_state, | 59 pref_path_, value ? value->CreateDeepCopy() : nullptr, value_state, |
| 59 external_validation_value_state, helper_.IsPersonal()); | 60 external_validation_value_state, helper_.IsPersonal()); |
| 60 } | 61 } |
| 61 TrackedPreferenceHelper::ResetAction reset_action = | 62 TrackedPreferenceHelper::ResetAction reset_action = |
| 62 helper_.GetAction(value_state); | 63 helper_.GetAction(value_state); |
| 63 helper_.ReportAction(reset_action); | 64 helper_.ReportAction(reset_action); |
| 64 | 65 |
| 65 bool was_reset = false; | 66 bool was_reset = false; |
| 66 if (reset_action == TrackedPreferenceHelper::DO_RESET) { | 67 if (reset_action == TrackedPreferenceHelper::DO_RESET) { |
| 67 pref_store_contents->RemovePath(pref_path_, NULL); | 68 pref_store_contents->RemovePath(pref_path_, NULL); |
| 68 was_reset = true; | 69 was_reset = true; |
| 69 } | 70 } |
| 70 | 71 |
| 71 if (value_state != PrefHashStoreTransaction::UNCHANGED) { | 72 if (value_state != ValueState::UNCHANGED) { |
| 72 // Store the hash for the new value (whether it was reset or not). | 73 // Store the hash for the new value (whether it was reset or not). |
| 73 const base::Value* new_value = NULL; | 74 const base::Value* new_value = NULL; |
| 74 pref_store_contents->Get(pref_path_, &new_value); | 75 pref_store_contents->Get(pref_path_, &new_value); |
| 75 transaction->StoreHash(pref_path_, new_value); | 76 transaction->StoreHash(pref_path_, new_value); |
| 76 } | 77 } |
| 77 | 78 |
| 78 // Update MACs in the external store if there is one and there either was a | 79 // Update MACs in the external store if there is one and there either was a |
| 79 // reset or external validation failed. | 80 // reset or external validation failed. |
| 80 if (external_validation_transaction && | 81 if (external_validation_transaction && |
| 81 (was_reset || | 82 (was_reset || external_validation_value_state != ValueState::UNCHANGED)) { |
| 82 external_validation_value_state != | |
| 83 PrefHashStoreTransaction::UNCHANGED)) { | |
| 84 const base::Value* new_value = nullptr; | 83 const base::Value* new_value = nullptr; |
| 85 pref_store_contents->Get(pref_path_, &new_value); | 84 pref_store_contents->Get(pref_path_, &new_value); |
| 86 external_validation_transaction->StoreHash(pref_path_, new_value); | 85 external_validation_transaction->StoreHash(pref_path_, new_value); |
| 87 } | 86 } |
| 88 | 87 |
| 89 return was_reset; | 88 return was_reset; |
| 90 } | 89 } |
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