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1 // Copyright 2017 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 #ifndef DEVICE_U2F_U2F_REQUEST_H_ | |
6 #define DEVICE_U2F_U2F_REQUEST_H_ | |
7 | |
8 #include "base/cancelable_callback.h" | |
9 #include "base/scoped_observer.h" | |
10 #include "device/hid/hid_device_filter.h" | |
11 #include "device/hid/hid_service.h" | |
12 #include "u2f_device.h" | |
13 | |
14 namespace device { | |
15 class U2fRequest : HidService::Observer { | |
16 public: | |
17 using ResponseCallback = base::Callback<void(U2fReturnCode status_code, | |
18 std::vector<uint8_t> response)>; | |
19 | |
20 U2fRequest(const ResponseCallback& callback); | |
21 virtual ~U2fRequest(); | |
22 | |
23 void Start(); | |
24 void AddDeviceForTesting(std::unique_ptr<U2fDevice> device); | |
25 | |
26 protected: | |
27 enum class State { | |
28 INIT, | |
29 BUSY, | |
30 WINK, | |
31 IDLE, | |
32 OFF, | |
33 COMPLETE, | |
34 }; | |
35 | |
36 void Transition(); | |
37 virtual void TryDevice() = 0; | |
38 | |
39 std::unique_ptr<U2fDevice> current_device_; | |
40 State state_; | |
41 ResponseCallback cb_; | |
42 | |
43 private: | |
44 FRIEND_TEST_ALL_PREFIXES(U2fRequestTest, TestAddRemoveDevice); | |
45 FRIEND_TEST_ALL_PREFIXES(U2fRequestTest, TestIterateDevice); | |
46 FRIEND_TEST_ALL_PREFIXES(U2fRequestTest, TestBasicMachine); | |
47 | |
48 void Enumerate(); | |
49 void IterateDevice(); | |
50 void OnWaitComplete(); | |
51 void AddDevice(std::unique_ptr<U2fDevice> device); | |
52 void OnDeviceAdded(scoped_refptr<HidDeviceInfo> device_info) override; | |
53 void OnDeviceRemoved(scoped_refptr<HidDeviceInfo> device_info) override; | |
54 void OnEnumerate(const std::vector<scoped_refptr<HidDeviceInfo>>& devices); | |
55 | |
56 std::list<std::unique_ptr<U2fDevice>> devices_; | |
57 std::list<std::unique_ptr<U2fDevice>> attempted_devices_; | |
58 base::CancelableClosure delay_callback_; | |
59 HidDeviceFilter filter_; | |
60 ScopedObserver<HidService, HidService::Observer> hid_service_observer_; | |
61 base::WeakPtrFactory<U2fRequest> weak_factory_; | |
62 }; | |
63 } // namespace device | |
64 | |
65 #endif // DEVICE_U2F_U2F_REQUEST_H_ | |
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