1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/user_prefs/tracked/tracked_split_preference.h"
#include <vector>
#include "base/logging.h"
#include "base/values.h"
#include "components/user_prefs/tracked/pref_hash_store_transaction.h"
#include "components/user_prefs/tracked/tracked_preference_validation_delegate.h"
TrackedSplitPreference::TrackedSplitPreference(
const std::string& pref_path,
size_t reporting_id,
size_t reporting_ids_count,
PrefHashFilter::EnforcementLevel enforcement_level,
PrefHashFilter::ValueType value_type,
TrackedPreferenceValidationDelegate* delegate)
: pref_path_(pref_path),
helper_(pref_path,
reporting_id,
reporting_ids_count,
enforcement_level,
value_type),
delegate_(delegate) {
}
TrackedPreferenceType TrackedSplitPreference::GetType() const {
return TrackedPreferenceType::SPLIT;
}
void TrackedSplitPreference::OnNewValue(
const base::Value* value,
PrefHashStoreTransaction* transaction) const {
const base::DictionaryValue* dict_value = NULL;
if (value && !value->GetAsDictionary(&dict_value)) {
NOTREACHED();
return;
}
transaction->StoreSplitHash(pref_path_, dict_value);
}
bool TrackedSplitPreference::EnforceAndReport(
base::DictionaryValue* pref_store_contents,
PrefHashStoreTransaction* transaction,
PrefHashStoreTransaction* external_validation_transaction) const {
base::DictionaryValue* dict_value = NULL;
if (!pref_store_contents->GetDictionary(pref_path_, &dict_value) &&
pref_store_contents->Get(pref_path_, NULL)) {
// There should be a dictionary or nothing at |pref_path_|.
NOTREACHED();
return false;
}
std::vector<std::string> invalid_keys;
PrefHashStoreTransaction::ValueState value_state =
transaction->CheckSplitValue(pref_path_, dict_value, &invalid_keys);
if (value_state == PrefHashStoreTransaction::CHANGED)
helper_.ReportSplitPreferenceChangedCount(invalid_keys.size());
helper_.ReportValidationResult(value_state, transaction->GetStoreUMASuffix());
PrefHashStoreTransaction::ValueState external_validation_value_state =
PrefHashStoreTransaction::UNSUPPORTED;
std::vector<std::string> external_validation_invalid_keys;
if (external_validation_transaction) {
external_validation_value_state =
external_validation_transaction->CheckSplitValue(
pref_path_, dict_value, &external_validation_invalid_keys);
helper_.ReportValidationResult(
external_validation_value_state,
external_validation_transaction->GetStoreUMASuffix());
}
if (delegate_) {
delegate_->OnSplitPreferenceValidation(
pref_path_, dict_value, invalid_keys, external_validation_invalid_keys,
value_state, external_validation_value_state, helper_.IsPersonal());
}
TrackedPreferenceHelper::ResetAction reset_action =
helper_.GetAction(value_state);
helper_.ReportAction(reset_action);
bool was_reset = false;
if (reset_action == TrackedPreferenceHelper::DO_RESET) {
if (value_state == PrefHashStoreTransaction::CHANGED) {
DCHECK(!invalid_keys.empty());
for (std::vector<std::string>::const_iterator it = invalid_keys.begin();
it != invalid_keys.end(); ++it) {
dict_value->Remove(*it, NULL);
}
} else {
pref_store_contents->RemovePath(pref_path_, NULL);
}
was_reset = true;
}
if (value_state != PrefHashStoreTransaction::UNCHANGED) {
// Store the hash for the new value (whether it was reset or not).
const base::DictionaryValue* new_dict_value = NULL;
pref_store_contents->GetDictionary(pref_path_, &new_dict_value);
transaction->StoreSplitHash(pref_path_, new_dict_value);
}
// Update MACs in the external store if there is one and there either was a
// reset or external validation failed.
if (external_validation_transaction &&
(was_reset ||
external_validation_value_state !=
PrefHashStoreTransaction::UNCHANGED)) {
const base::DictionaryValue* new_dict_value = nullptr;
pref_store_contents->GetDictionary(pref_path_, &new_dict_value);
external_validation_transaction->StoreSplitHash(pref_path_, new_dict_value);
}
return was_reset;
}
|
