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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/trusted_vault/trusted_vault_degraded_recoverability_handler.h"
#include <utility>
#include "base/functional/callback.h"
#include "base/location.h"
#include "base/metrics/histogram_functions.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "components/trusted_vault/proto/local_trusted_vault.pb.h"
#include "components/trusted_vault/proto_time_conversion.h"
#include "components/trusted_vault/trusted_vault_connection.h"
#include "components/trusted_vault/trusted_vault_histograms.h"
namespace trusted_vault {
namespace {
base::TimeDelta ComputeTimeUntilNextRefresh(
const base::TimeDelta& refresh_period,
const base::TimeTicks& last_refresh_time) {
if (last_refresh_time.is_null()) {
return base::TimeDelta();
}
const base::TimeDelta elapsed_time =
base::TimeTicks::Now() - last_refresh_time;
if (elapsed_time > refresh_period) {
return base::TimeDelta();
}
return refresh_period - elapsed_time;
}
trusted_vault_pb::LocalTrustedVaultDegradedRecoverabilityState
MakeDegradedRecoverabilityState(
trusted_vault_pb::DegradedRecoverabilityValue degraded_recoverability_value,
const base::Time& last_refresh_time) {
trusted_vault_pb::LocalTrustedVaultDegradedRecoverabilityState
degraded_recoverability_state;
degraded_recoverability_state.set_degraded_recoverability_value(
degraded_recoverability_value);
degraded_recoverability_state.set_last_refresh_time_millis_since_unix_epoch(
TimeToProtoTime(last_refresh_time));
return degraded_recoverability_state;
}
} // namespace
TrustedVaultDegradedRecoverabilityHandler::
TrustedVaultDegradedRecoverabilityHandler(
TrustedVaultConnection* connection,
Delegate* delegate,
const CoreAccountInfo& account_info,
const trusted_vault_pb::LocalTrustedVaultDegradedRecoverabilityState&
degraded_recoverability_state)
: connection_(connection),
delegate_(delegate),
account_info_(account_info) {
degraded_recoverability_value_ =
degraded_recoverability_state.degraded_recoverability_value();
if (degraded_recoverability_state
.has_last_refresh_time_millis_since_unix_epoch()) {
base::Time last_refresh_time =
ProtoTimeToTime(degraded_recoverability_state
.last_refresh_time_millis_since_unix_epoch());
if (base::Time::Now() >= last_refresh_time) {
last_refresh_time_ =
base::TimeTicks::Now() - (base::Time::Now() - last_refresh_time);
}
}
UpdateCurrentRefreshPeriod();
}
TrustedVaultDegradedRecoverabilityHandler::
~TrustedVaultDegradedRecoverabilityHandler() = default;
void TrustedVaultDegradedRecoverabilityHandler::
HintDegradedRecoverabilityChanged(
TrustedVaultHintDegradedRecoverabilityChangedReasonForUMA reason) {
if (next_refresh_timer_.IsRunning()) {
trusted_vault::RecordTrustedVaultHintDegradedRecoverabilityChangedReason(
reason);
next_refresh_timer_.FireNow();
}
}
void TrustedVaultDegradedRecoverabilityHandler::GetIsRecoverabilityDegraded(
base::OnceCallback<void(bool)> cb) {
if (last_refresh_time_.is_null()) {
pending_get_is_recoverability_degraded_callback_ = std::move(cb);
} else {
std::move(cb).Run(degraded_recoverability_value_ ==
trusted_vault_pb::DegradedRecoverabilityValue::kDegraded);
}
if (!next_refresh_timer_.IsRunning()) {
Start();
}
}
void TrustedVaultDegradedRecoverabilityHandler::UpdateCurrentRefreshPeriod() {
if (degraded_recoverability_value_ ==
trusted_vault_pb::DegradedRecoverabilityValue::kDegraded) {
current_refresh_period_ = kShortDegradedRecoverabilityRefreshPeriod;
return;
}
current_refresh_period_ = kLongDegradedRecoverabilityRefreshPeriod;
}
void TrustedVaultDegradedRecoverabilityHandler::Start() {
base::UmaHistogramExactLinear(
"TrustedVault.TrustedVaultDegradedRecoverabilityValue",
degraded_recoverability_value_,
trusted_vault_pb::DegradedRecoverabilityValue_ARRAYSIZE);
next_refresh_timer_.Start(
FROM_HERE,
ComputeTimeUntilNextRefresh(current_refresh_period_, last_refresh_time_),
this, &TrustedVaultDegradedRecoverabilityHandler::Refresh);
}
void TrustedVaultDegradedRecoverabilityHandler::Refresh() {
// Since destroying the request object causes actual request cancellation, so
// it's safe to use base::Unretained() here.
ongoing_get_recoverability_request_ =
connection_->DownloadIsRecoverabilityDegraded(
account_info_,
base::BindOnce(&TrustedVaultDegradedRecoverabilityHandler::
OnRecoverabilityIsDegradedDownloaded,
base::Unretained(this)));
}
void TrustedVaultDegradedRecoverabilityHandler::
OnRecoverabilityIsDegradedDownloaded(
TrustedVaultRecoverabilityStatus status) {
base::UmaHistogramEnumeration(
"TrustedVault.RecoverabilityStatusOnRequestCompletion", status);
trusted_vault_pb::DegradedRecoverabilityValue
old_degraded_recoverability_value = degraded_recoverability_value_;
switch (status) {
case TrustedVaultRecoverabilityStatus::kDegraded:
degraded_recoverability_value_ =
trusted_vault_pb::DegradedRecoverabilityValue::kDegraded;
break;
case TrustedVaultRecoverabilityStatus::kNotDegraded:
degraded_recoverability_value_ =
trusted_vault_pb::DegradedRecoverabilityValue::kNotDegraded;
break;
case TrustedVaultRecoverabilityStatus::kError:
// TODO(crbug.com/40790270): To be handled.
break;
}
if (!pending_get_is_recoverability_degraded_callback_.is_null()) {
std::move(pending_get_is_recoverability_degraded_callback_)
.Run(degraded_recoverability_value_ ==
trusted_vault_pb::DegradedRecoverabilityValue::kDegraded);
pending_get_is_recoverability_degraded_callback_ = base::NullCallback();
}
if (degraded_recoverability_value_ != old_degraded_recoverability_value) {
delegate_->OnDegradedRecoverabilityChanged();
UpdateCurrentRefreshPeriod();
}
last_refresh_time_ = base::TimeTicks::Now();
delegate_->WriteDegradedRecoverabilityState(MakeDegradedRecoverabilityState(
degraded_recoverability_value_, base::Time::Now()));
next_refresh_timer_.Start(
FROM_HERE, current_refresh_period_, this,
&TrustedVaultDegradedRecoverabilityHandler::Refresh);
}
} // namespace trusted_vault
|
