vector-im/element-x-ios/issues/31 - Implement simple SaS sesson verification

* vector-im/element-x-ios/issues/31 - Session verification unit and UI tests * Fix ImageAnonymizer tests when running on Apple Silicon * Rename SessionVerification to SessionVerificationScreen
2026-11-02 21:33:26 +00:00 · 2022-07-01 13:56:52 +03:00
parent 266ca656fc
commit a6f9d1ba89
30 changed files with 1604 additions and 98 deletions
@@ -0,0 +1,204 @@
+// 
+// Copyright 2021 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 SwiftUI
+import MatrixRustSDK
+
+struct SessionVerificationScreen: View {
+    
+    @ObservedObject var context: SessionVerificationViewModel.Context
+    
+    // MARK: Views
+    
+    var body: some View {
+        NavigationView {
+            VStack(spacing: 32.0) {
+                Text(heading)
+                    .font(.body)
+                    .multilineTextAlignment(.center)
+                    .foregroundColor(.element.primaryContent)
+                    .accessibilityIdentifier("titleLabel")
+                
+                switch context.viewState.verificationState {
+                case .initial:
+                    StateIcon(systemName: "lock.shield")
+                    Button(ElementL10n.startVerification) {
+                        context.send(viewAction: .start)
+                    }
+                    .buttonStyle(.elementAction(.regular))
+                    .accessibilityIdentifier("startButton")
+                    
+                case .cancelled:
+                    StateIcon(systemName: "xmark.shield")
+                        .accessibilityIdentifier("sessionVerificationFailedIcon")
+                    
+                    Button(ElementL10n.globalRetry) {
+                        context.send(viewAction: .restart)
+                    }
+                    .buttonStyle(.elementAction(.regular))
+                    .accessibilityIdentifier("restartButton")
+                    
+                case .requestingVerification:
+                    ProgressView()
+                        .accessibilityIdentifier("requestingVerificationProgressView")
+                case .cancelling:
+                    ProgressView()
+                        .accessibilityIdentifier("cancellingVerificationProgressView")
+                case .acceptingChallenge:
+                    ProgressView()
+                        .accessibilityIdentifier("acceptingChallengeProgressView")
+                case .decliningChallenge:
+                    ProgressView()
+                        .accessibilityIdentifier("decliningChallengeProgressView")
+                    
+                case .showingChallenge(let emojis):
+                    HStack(spacing: 8.0) {
+                        ForEach(emojis.prefix(4), id: \.self) { emoji in
+                            EmojiView(emoji: emoji)
+                        }
+                    }
+                    HStack(spacing: 8.0) {
+                        ForEach(emojis.suffix(from: 4), id: \.self) { emoji in
+                            EmojiView(emoji: emoji)
+                        }
+                    }
+                    
+                    actionButtons
+                case .verified:
+                    StateIcon(systemName: "checkmark.shield")
+                        .accessibilityIdentifier("sessionVerificationSucceededIcon")
+                }
+                
+                Spacer()
+            }
+            .padding()
+            .padding(.top, 64)
+            .navigationBarTitleDisplayMode(.inline)
+            .navigationTitle(ElementL10n.verificationVerifyDevice)
+            .toolbar {
+                ToolbarItem(placement: .confirmationAction) {
+                    Button(ElementL10n.done) {
+                        context.send(viewAction: .dismiss)
+                    }
+                    .disabled(context.viewState.shouldDisableDismissButton)
+                    .accessibilityIdentifier("dismissButton")
+                }
+                ToolbarItem(placement: .cancellationAction) {
+                    Button(ElementL10n.actionCancel) {
+                        context.send(viewAction: .cancel)
+                    }
+                    .disabled(context.viewState.shouldDisableCancelButton)
+                    .accessibilityIdentifier("cancelButton")
+                }
+            }
+        }
+        .navigationViewStyle(StackNavigationViewStyle())
+    }
+    
+    // MARK: - Private
+    
+    private var heading: String {
+        switch context.viewState.verificationState {
+        case .initial:
+            return ElementL10n.verificationOpenOtherToVerify
+        case .requestingVerification:
+            return ElementL10n.verificationRequestWaiting
+        case .acceptingChallenge:
+            return ElementL10n.verificationRequestWaiting
+        case .decliningChallenge:
+            return ElementL10n.verificationRequestWaiting
+        case .cancelling:
+            return ElementL10n.verificationRequestWaiting
+        case .showingChallenge:
+            return ElementL10n.verificationEmojiNotice
+        case .verified:
+            return ElementL10n.verificationConclusionOkSelfNotice
+        case .cancelled:
+            return ElementL10n.verificationCancelled
+        }
+    }
+    
+    private var actionButtons: some View {
+        HStack(spacing: 16.0) {
+            Button(ElementL10n.verificationSasDoNotMatch) {
+                context.send(viewAction: .decline)
+            }
+            .buttonStyle(.elementAction(.regular, color: .red))
+            .accessibilityLabel("challengeDeclineButton")
+            
+            Button(ElementL10n.verificationSasMatch) {
+                context.send(viewAction: .accept)
+            }
+            .buttonStyle(.elementAction(.regular))
+            .accessibilityLabel("challengeAcceptButton")
+        }
+        .padding(32.0)
+    }
+    
+    struct EmojiView: View {
+        let emoji: SessionVerificationEmoji
+        
+        var body: some View {
+            VStack(spacing: 16.0) {
+                Text(emoji.symbol)
+                    .font(.largeTitle)
+                Text(emoji.description)
+                    .font(.body)
+            }
+            .padding(8.0)
+        }
+    }
+    
+    struct StateIcon: View {
+        let systemName: String
+        
+        var body: some View {
+            Image(systemName: systemName)
+                .resizable()
+                .scaledToFit()
+                .foregroundColor(.element.accent)
+                .frame(width: 100, height: 100)
+        }
+    }
+}
+
+// MARK: - Previews
+
+struct SessionVerification_Previews: PreviewProvider {
+    static var previews: some View {
+        body.preferredColorScheme(.light)
+        body.preferredColorScheme(.dark)
+    }
+
+    @ViewBuilder
+    static var body: some View {
+        Group {
+            sessionVerificationScreen(state: .initial)
+            sessionVerificationScreen(state: .requestingVerification)
+            sessionVerificationScreen(state: .cancelled)
+             
+            sessionVerificationScreen(state: .showingChallenge(emojis: MockSessionVerificationControllerProxy.emojis))
+            sessionVerificationScreen(state: .verified)
+        }
+    }
+
+    static func sessionVerificationScreen(state: SessionVerificationStateMachine.State) -> some View {
+        let viewModel = SessionVerificationViewModel(sessionVerificationControllerProxy: MockSessionVerificationControllerProxy(),
+                                                     initialState: SessionVerificationViewState(verificationState: state))
+
+        return SessionVerificationScreen(context: viewModel.context)
+    }
+}