OLD | NEW |
1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 #include "chrome/browser/media/media_device_id_salt.h" | 4 #include "chrome/browser/media/media_device_id_salt.h" |
5 | 5 |
6 #include "base/base64.h" | 6 #include "base/base64.h" |
7 #include "base/prefs/pref_service.h" | 7 #include "base/prefs/pref_service.h" |
8 #include "base/rand_util.h" | 8 #include "base/rand_util.h" |
9 #include "chrome/browser/profiles/profile_io_data.h" | 9 #include "chrome/browser/profiles/profile_io_data.h" |
10 #include "chrome/common/pref_names.h" | 10 #include "chrome/common/pref_names.h" |
11 #include "content/public/browser/browser_thread.h" | 11 #include "content/public/browser/browser_thread.h" |
12 | 12 |
13 using content::BrowserThread; | 13 using content::BrowserThread; |
14 | 14 |
15 namespace { | 15 namespace { |
16 | 16 |
17 std::string CreateSalt() { | 17 std::string CreateSalt() { |
18 std::string salt; | 18 std::string salt; |
19 base::Base64Encode(base::RandBytesAsString(16), &salt); | 19 base::Base64Encode(base::RandBytesAsString(16), &salt); |
20 DCHECK(!salt.empty()); | 20 DCHECK(!salt.empty()); |
21 return salt; | 21 return salt; |
22 } | 22 } |
23 | 23 |
24 } // namespace | 24 } // namespace |
25 | 25 |
26 MediaDeviceIDSalt::MediaDeviceIDSalt(PrefService* pref_service, | 26 MediaDeviceIDSalt::MediaDeviceIDSalt(PrefService* pref_service, |
27 bool incognito) { | 27 bool incognito) { |
28 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | 28 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
29 | 29 |
30 if (incognito) { | 30 if (incognito) { |
31 incognito_salt_ = CreateSalt(); | 31 incognito_salt_ = CreateSalt(); |
32 return; | 32 return; |
33 } | 33 } |
34 | 34 |
35 media_device_id_salt_.Init(prefs::kMediaDeviceIdSalt, pref_service); | 35 media_device_id_salt_.Init(prefs::kMediaDeviceIdSalt, pref_service); |
36 if (media_device_id_salt_.GetValue().empty()) | 36 if (media_device_id_salt_.GetValue().empty()) |
37 media_device_id_salt_.SetValue(CreateSalt()); | 37 media_device_id_salt_.SetValue(CreateSalt()); |
38 | 38 |
39 media_device_id_salt_.MoveToThread( | 39 media_device_id_salt_.MoveToThread( |
40 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)); | 40 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)); |
41 } | 41 } |
42 | 42 |
43 MediaDeviceIDSalt::~MediaDeviceIDSalt() { | 43 MediaDeviceIDSalt::~MediaDeviceIDSalt() { |
44 } | 44 } |
45 | 45 |
46 void MediaDeviceIDSalt::ShutdownOnUIThread() { | 46 void MediaDeviceIDSalt::ShutdownOnUIThread() { |
47 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | 47 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
48 if (incognito_salt_.empty()) | 48 if (incognito_salt_.empty()) |
49 media_device_id_salt_.Destroy(); | 49 media_device_id_salt_.Destroy(); |
50 } | 50 } |
51 | 51 |
52 std::string MediaDeviceIDSalt::GetSalt() const { | 52 std::string MediaDeviceIDSalt::GetSalt() const { |
53 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | 53 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
54 if (incognito_salt_.size()) | 54 if (incognito_salt_.size()) |
55 return incognito_salt_; | 55 return incognito_salt_; |
56 return media_device_id_salt_.GetValue(); | 56 return media_device_id_salt_.GetValue(); |
57 } | 57 } |
58 | 58 |
59 void MediaDeviceIDSalt::RegisterProfilePrefs( | 59 void MediaDeviceIDSalt::RegisterProfilePrefs( |
60 user_prefs::PrefRegistrySyncable* registry) { | 60 user_prefs::PrefRegistrySyncable* registry) { |
61 registry->RegisterStringPref( | 61 registry->RegisterStringPref( |
62 prefs::kMediaDeviceIdSalt, | 62 prefs::kMediaDeviceIdSalt, |
63 std::string(), | 63 std::string(), |
64 user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF); | 64 user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF); |
65 } | 65 } |
66 | 66 |
67 void MediaDeviceIDSalt::Reset(PrefService* pref_service) { | 67 void MediaDeviceIDSalt::Reset(PrefService* pref_service) { |
68 pref_service->SetString(prefs::kMediaDeviceIdSalt, | 68 pref_service->SetString(prefs::kMediaDeviceIdSalt, |
69 CreateSalt()); | 69 CreateSalt()); |
70 } | 70 } |
OLD | NEW |