Secrets setup: Handle set up recovery passphrase screen.

2026-04-19 08:03:50 +02:00 · 2020-06-23 18:17:38 +02:00
parent 26f7102918
commit e347def7f7
9 changed files with 960 additions and 0 deletions
@@ -0,0 +1,126 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Test SecretsSetupRecoveryPassphrase
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+final class SecretsSetupRecoveryPassphraseViewModel: SecretsSetupRecoveryPassphraseViewModelType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let passphraseInput: SecretsSetupRecoveryPassphraseInput
+    private let passwordStrengthManager: PasswordStrengthManager
+    
+    private var currentViewData: SecretsSetupRecoveryPassphraseViewData?
+    private var passphrase: String?
+    
+    // MARK: Public
+
+    weak var viewDelegate: SecretsSetupRecoveryPassphraseViewModelViewDelegate?
+    weak var coordinatorDelegate: SecretsSetupRecoveryPassphraseViewModelCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(passphraseInput: SecretsSetupRecoveryPassphraseInput) {
+        self.passphraseInput = passphraseInput
+        self.passwordStrengthManager = PasswordStrengthManager()
+    }
+    
+    // MARK: - Public
+    
+    func process(viewAction: SecretsSetupRecoveryPassphraseViewAction) {
+        switch viewAction {
+        case .loadData:
+            self.loadData()
+        case .updatePassphrase(let passphrase):
+            self.updatePassphrase(passphrase)
+        case .validate:
+            self.validate()
+        case .cancel:
+            self.coordinatorDelegate?.secretsSetupRecoveryPassphraseViewModelDidCancel(self)
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func loadData() {
+        
+        let viewDataMode: SecretsSetupRecoveryPassphraseViewDataMode
+        
+        switch self.passphraseInput {
+        case .new:
+            viewDataMode = .newPassphrase(strength: .tooGuessable)
+        case .confirm:
+            viewDataMode = .confimPassphrase
+        }
+        
+        let viewData = SecretsSetupRecoveryPassphraseViewData(mode: viewDataMode, isFormValid: false)
+        
+        self.update(viewState: .loaded(viewData))
+    }
+    
+    private func update(viewState: SecretsSetupRecoveryPassphraseViewState) {
+        self.viewDelegate?.secretsSetupRecoveryPassphraseViewModel(self, didUpdateViewState: viewState)
+    }
+    
+    private func updatePassphrase(_ passphrase: String?) {
+        
+        let viewDataMode: SecretsSetupRecoveryPassphraseViewDataMode
+        let isFormValid: Bool
+        
+        switch self.passphraseInput {
+        case .new:
+            let passphraseStrength = self.passwordStrength(for: passphrase)
+            viewDataMode = .newPassphrase(strength: passphraseStrength)
+            isFormValid = passphraseStrength == .veryUnguessable
+        case .confirm(let passphraseToConfirm):
+            viewDataMode = .confimPassphrase
+            isFormValid = passphrase == passphraseToConfirm
+        }
+        
+        let viewData = SecretsSetupRecoveryPassphraseViewData(mode: viewDataMode, isFormValid: isFormValid)
+        
+        self.passphrase = passphrase
+        self.currentViewData = viewData
+        
+        self.update(viewState: .formUpdated(viewData))
+    }
+    
+    private func validate() {
+        guard let viewData = self.currentViewData,
+            viewData.isFormValid,
+            let passphrase = self.passphrase else {
+            return
+        }
+        
+        switch self.passphraseInput {
+        case .new:
+            self.coordinatorDelegate?.secretsSetupRecoveryPassphraseViewModel(self, didEnterNewPassphrase: passphrase)
+        case .confirm:
+            self.coordinatorDelegate?.secretsSetupRecoveryPassphraseViewModel(self, didConfirmPassphrase: passphrase)
+        }
+    }
+    
+    private func passwordStrength(for password: String?) -> PasswordStrength {
+        guard let password = password else {
+            return .tooGuessable
+        }
+        return self.passwordStrengthManager.passwordStrength(for: password)
+    }
+}