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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 #include "ash/login/lock_screen_controller.h" |
| 6 |
| 7 #include "chromeos/cryptohome/system_salt_getter.h" |
| 8 #include "chromeos/login/auth/user_context.h" |
| 9 |
| 10 namespace ash { |
| 11 |
| 12 LockScreenController::LockScreenController() = default; |
| 13 |
| 14 LockScreenController::~LockScreenController() = default; |
| 15 |
| 16 void LockScreenController::BindRequest(mojom::LockScreenRequest request) { |
| 17 bindings_.AddBinding(this, std::move(request)); |
| 18 } |
| 19 |
| 20 void LockScreenController::AuthenticateUser(const AccountId& account_id, |
| 21 const std::string& password, |
| 22 bool authenticated_by_pin) { |
| 23 if (!lock_screen_client_) |
| 24 return; |
| 25 |
| 26 chromeos::SystemSaltGetter::Get()->GetSystemSalt(base::Bind( |
| 27 &LockScreenController::DoAuthenticateUser, base::Unretained(this), |
| 28 account_id, password, authenticated_by_pin)); |
| 29 } |
| 30 |
| 31 void LockScreenController::SetClient(mojom::LockScreenClientPtr client) { |
| 32 lock_screen_client_ = std::move(client); |
| 33 } |
| 34 |
| 35 void LockScreenController::ShowErrorMessage(int32_t login_attempts, |
| 36 const std::string& error_text, |
| 37 const std::string& help_link_text, |
| 38 int32_t help_topic_id) { |
| 39 NOTIMPLEMENTED(); |
| 40 } |
| 41 |
| 42 void LockScreenController::ClearErrors() { |
| 43 NOTIMPLEMENTED(); |
| 44 } |
| 45 |
| 46 void LockScreenController::DoAuthenticateUser(const AccountId& account_id, |
| 47 const std::string& password, |
| 48 bool authenticated_by_pin, |
| 49 const std::string& system_salt) { |
| 50 // Hash password before sending through mojo. |
| 51 // TODO(xiaoyinh): Pin is hashed differently by using a different salt and |
| 52 // a different hash algorithm. Update this part in PinStorage. |
| 53 chromeos::Key key(password); |
| 54 key.Transform(chromeos::Key::KEY_TYPE_SALTED_SHA256_TOP_HALF, system_salt); |
| 55 lock_screen_client_->AuthenticateUser(account_id, key.GetSecret(), |
| 56 authenticated_by_pin); |
| 57 } |
| 58 |
| 59 } // namespace ash |
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