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
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_APP_MODE_KIOSK_NETWORK_STATE_OBSERVER_H_
#define CHROME_BROWSER_ASH_APP_MODE_KIOSK_NETWORK_STATE_OBSERVER_H_
#include <optional>
#include <string>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_observation.h"
#include "base/values.h"
#include "chromeos/ash/components/network/network_state_handler_observer.h"
#include "components/prefs/pref_change_registrar.h"
#include "components/prefs/pref_service.h"
namespace ash {
// Max number of attempts to expose active WiFi.
inline constexpr size_t kMaxWifiExposureAttempts = 3;
// When `KioskActiveWiFiCredentialsScopeChangeEnabled` policy is enabled,
// expose the first active WiFi configuration to the device level.
class KioskNetworkStateObserver : public NetworkStateHandlerObserver {
public:
explicit KioskNetworkStateObserver(PrefService* pref_service);
KioskNetworkStateObserver(const KioskNetworkStateObserver&) = delete;
KioskNetworkStateObserver& operator=(const KioskNetworkStateObserver&) =
delete;
~KioskNetworkStateObserver() override;
bool IsPolicyEnabled() const;
// This callback is called after an attempt to expose active WiFi.
// `is_successful_attempt` indicates where the attempt was successful or not.
using WifiExposureAttemptCallback =
base::RepeatingCallback<void(bool is_successful_attempt)>;
void SetWifiExposureAttemptCallbackForTesting(
WifiExposureAttemptCallback callback);
private:
// NetworkStateHandlerObserver overrides:
void ActiveNetworksChanged(
const std::vector<const NetworkState*>& active_networks) override;
void StartActiveWifiExposureProcess();
void StopActiveWifiExposureProcess();
void ExposeActiveWifiConfiguration();
void OnGetWifiPassphraseResult(const std::string& service_path,
const std::string& passphrase);
void OnGetWifiPassphraseError(const std::string& error_name,
const std::string& error_message);
void ReceiveProperties(const std::string& passphrase,
const std::string& service_path,
std::optional<base::Value::Dict> shill_properties);
void OnCreatedShillConfigSuccess(const std::string&, const std::string&);
void OnCreatedShillConfigFailure(const std::string& error);
// This function is called once
// `prefs::kKioskActiveWiFiCredentialsScopeChangeEnabled` preference is
// updated.
void PolicyChanged();
// If the attempt to expose WiFi fails, call this function to update
// `active_wifi_exposed_` and `wifi_exposure_attempts_`.
void FailCurrentAttempt();
// Does nothing if `wifi_exposure_attempt_callback_for_testing_` is not set.
// Propagates `is_successful_attempt` to
// `wifi_exposure_attempt_callback_for_testing_`.
void MaybeRunWifiExposureAttemptCallback(bool is_successful_attempt);
// Copy only one active WiFi. This helps to avoid a situation when
// `ActiveNetworksChanged` is called second time before we unsubscribe on
// the success WiFi exposure.
bool active_wifi_exposed_ = false;
// To avoid a failure loop, stop trying to expose the active WiFi after
// `kMaxWifiExposureAttempts`
size_t wifi_exposure_attempts_ = 0;
const raw_ptr<PrefService> pref_service_;
// Register `prefs::kKioskActiveWiFiCredentialsScopeChangeEnabled`
// preference to support dynamic refresh.
PrefChangeRegistrar pref_change_registrar_;
base::ScopedObservation<NetworkStateHandler, NetworkStateHandlerObserver>
network_state_handler_observation_{this};
// This callback should be called after each successful or failed attempt. The
// callback should be set only for testing via
// `SetWifiExposureAttemptCallbackForTesting`.
WifiExposureAttemptCallback wifi_exposure_attempt_callback_;
base::WeakPtrFactory<KioskNetworkStateObserver> weak_ptr_factory_{this};
};
} // namespace ash
#endif // CHROME_BROWSER_ASH_APP_MODE_KIOSK_NETWORK_STATE_OBSERVER_H_
|
