Incoming session verification support (#3428)

* Fixes #1227 - Add support for receiving and interacting with incoming session verification requests.
* Fix a couple of random small warnings
* Move static view config to the view state
* Update snapshots

ElementX.xcodeproj/project.pbxproj

@@ -666,6 +666,7 @@
 		915B4CDAF220D9AEB4047D45 /* PollInteractionHandlerProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 259E5B05BDE6E20C26CF11B4 /* PollInteractionHandlerProtocol.swift */; };
 		91ABC91758A6E4A5FAA2E9C4 /* ReadReceipt.swift in Sources */ = {isa = PBXBuildFile; fileRef = 314F1C79850BE46E8ABEAFCB /* ReadReceipt.swift */; };
 		91C6AC0E9D2B9C0C76CC6AD4 /* RoomDirectorySearchScreenScreenModelProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3984C93B8E9B10C92DADF9EE /* RoomDirectorySearchScreenScreenModelProtocol.swift */; };
+		91D1A46A733EC24C081DD353 /* SessionVerificationRequestDetailsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1A1265FAF2C0AF1C30605BE7 /* SessionVerificationRequestDetailsView.swift */; };
 		92012C96039BC8C2CAEBA9E2 /* AuthenticationServiceTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 671C338B7259DC5774816885 /* AuthenticationServiceTests.swift */; };
 		9219640F4D980CFC5FE855AD /* target.yml in Resources */ = {isa = PBXBuildFile; fileRef = 536E72DCBEEC4A1FE66CFDCE /* target.yml */; };
 		92720AB0DA9AB5EEF1DAF56B /* SecureBackupLogoutConfirmationScreenViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7DC017C3CB6B0F7C63F460F2 /* SecureBackupLogoutConfirmationScreenViewModel.swift */; };
@@ -1314,6 +1315,7 @@
 		190EC7285D3CFEF0D3011BCF /* GeoURI.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GeoURI.swift; sourceTree = "<group>"; };
 		196004E7695FBA292A7944AF /* ScreenTrackerViewModifier.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ScreenTrackerViewModifier.swift; sourceTree = "<group>"; };
 		1A02406480C351B8C6E0682C /* MediaLoaderProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MediaLoaderProtocol.swift; sourceTree = "<group>"; };
+		1A1265FAF2C0AF1C30605BE7 /* SessionVerificationRequestDetailsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SessionVerificationRequestDetailsView.swift; sourceTree = "<group>"; };
 		1A18F6CE4D694D21E4EA9B25 /* Strings+Untranslated.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Strings+Untranslated.swift"; sourceTree = "<group>"; };
 		1A4D29F2683F5772AC72406F /* MapTilerStaticMap.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MapTilerStaticMap.swift; sourceTree = "<group>"; };
 		1A7ED2EF5BDBAD2A7DBC4636 /* GeoURITests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GeoURITests.swift; sourceTree = "<group>"; };
@@ -4650,6 +4652,7 @@
 		A722D372674EE5687E1A67E4 /* View */ = {
 			isa = PBXGroup;
 			children = (
+				1A1265FAF2C0AF1C30605BE7 /* SessionVerificationRequestDetailsView.swift */,
 				5FACD034DB52525A3CEF2BDF /* SessionVerificationScreen.swift */,
 			);
 			path = View;
@@ -6904,6 +6907,7 @@
 				237FC70AA257B935F53316BA /* SessionVerificationControllerProxy.swift in Sources */,
 				AE1A73B24D63DA3D63DC4EE3 /* SessionVerificationControllerProxyMock.swift in Sources */,
 				94A65DD8A353DF112EBEF67A /* SessionVerificationControllerProxyProtocol.swift in Sources */,
+				91D1A46A733EC24C081DD353 /* SessionVerificationRequestDetailsView.swift in Sources */,
 				707E49BE07E8EB8A13C0EB1E /* SessionVerificationScreen.swift in Sources */,
 				D02DEB36D32A72A1B365E452 /* SessionVerificationScreenCoordinator.swift in Sources */,
 				5710AAB27D5D866292C1FE06 /* SessionVerificationScreenModels.swift in Sources */,
@@ -7828,7 +7832,7 @@
 			repositoryURL = "https://github.com/element-hq/matrix-rust-components-swift";
 			requirement = {
 				kind = exactVersion;
-				version = 1.0.61;
+				version = 1.0.62;
 			};
 		};
 		701C7BEF8F70F7A83E852DCC /* XCRemoteSwiftPackageReference "GZIP" */ = {

ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -149,8 +149,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/element-hq/matrix-rust-components-swift",
       "state" : {
-        "revision" : "2e6378514e79a648d436e8faeb8cd8106910cf0b",
+        "revision" : "9b26e40ae6c27c56e233577c863569ff074f84fd",
-        "version" : "1.0.61"
+        "version" : "1.0.62"
       }
     },
     {

ElementX/Resources/Localizations/en.lproj/Localizable.strings

@@ -115,8 +115,9 @@
 "banner_migrate_to_native_sliding_sync_description" = "Your server now supports a new, faster protocol. Log out and log back in to upgrade now. Doing this now will help you avoid a forced logout when the old protocol is removed later.";
 "banner_migrate_to_native_sliding_sync_force_logout_title" = "Your homeserver no longer supports the old protocol. Please log out and log back in to continue using the app.";
 "banner_migrate_to_native_sliding_sync_title" = "Upgrade available";
-"banner.set_up_recovery.content" = "Generate a new recovery key that can be used to restore your encrypted message history in case you lose access to your devices.";
+"banner_set_up_recovery_submit" = "Set up recovery";
-"banner.set_up_recovery.title" = "Set up recovery";
+"banner.set_up_recovery.content" = "Recover your cryptographic identity and message history with a recovery key if you have lost all your existing devices.";
+"banner.set_up_recovery.title" = "Set up recovery to protect your account";
 "common_about" = "About";
 "common_acceptable_use_policy" = "Acceptable use policy";
 "common_advanced_settings" = "Advanced settings";
@@ -454,7 +455,7 @@
 "screen_change_server_form_notice" = "You can only connect to an existing server that supports sliding sync. Your homeserver admin will need to configure it. %1$@";
 "screen_change_server_subtitle" = "What is the address of your server?";
 "screen_change_server_title" = "Select your server";
-"screen_chat_backup_key_backup_action_disable" = "Turn off backup";
+"screen_chat_backup_key_backup_action_disable" = "Delete key storage";
 "screen_chat_backup_key_backup_action_enable" = "Turn on backup";
 "screen_chat_backup_key_backup_description" = "Store your cryptographic identity and message keys securely on the server. This will allow you to view your message history on any new devices. %1$@.";
 "screen_chat_backup_key_backup_title" = "Key storage";
@@ -538,10 +539,10 @@
 "screen_key_backup_disable_confirmation_action_turn_off" = "Turn off";
 "screen_key_backup_disable_confirmation_description" = "You will lose your encrypted messages if you are signed out of all devices.";
 "screen_key_backup_disable_confirmation_title" = "Are you sure you want to turn off backup?";
-"screen_key_backup_disable_description" = "Turning off backup will remove your current encryption key backup and turn off other security features. In this case, you will:";
+"screen_key_backup_disable_description" = "Deleting key storage will remove your cryptographic identity and message keys from the server and turn off the following security features:";
-"screen_key_backup_disable_description_point_1" = "Not have encrypted message history on new devices";
+"screen_key_backup_disable_description_point_1" = "You will not have encrypted message history on new devices";
-"screen_key_backup_disable_description_point_2" = "Lose access to your encrypted messages if you are signed out of %1$@ everywhere";
+"screen_key_backup_disable_description_point_2" = "You will lose access to your encrypted messages if you are signed out of %1$@ everywhere";
-"screen_key_backup_disable_title" = "Are you sure you want to turn off backup?";
+"screen_key_backup_disable_title" = "Are you sure you want to turn off key storage and delete it?";
 "screen_login_error_deactivated_account" = "This account has been deactivated.";
 "screen_login_error_invalid_credentials" = "Incorrect username and/or password";
 "screen_login_error_invalid_user_id" = "This is not a valid user identifier. Expected format: ‘@user:homeserver.org’";
@@ -652,7 +653,7 @@
 "screen_recovery_key_save_title" = "Save your recovery key somewhere safe";
 "screen_recovery_key_setup_confirmation_description" = "You will not be able to access your new recovery key after this step.";
 "screen_recovery_key_setup_confirmation_title" = "Have you saved your recovery key?";
-"screen_recovery_key_setup_description" = "Your chat backup is protected by a recovery key. If you need a new recovery key after setup you can recreate by selecting ‘Change recovery key’.";
+"screen_recovery_key_setup_description" = "Your key storage is protected by a recovery key. If you need a new recovery key after setup, you can recreate it by selecting ‘Change recovery key’.";
 "screen_recovery_key_setup_generate_key" = "Generate your recovery key";
 "screen_recovery_key_setup_generate_key_description" = "Do not share this with anyone!";
 "screen_recovery_key_setup_success" = "Recovery setup successful";

ElementX/Sources/FlowCoordinators/OnboardingFlowCoordinator.swift

@@ -244,9 +244,7 @@ class OnboardingFlowCoordinator: FlowCoordinatorProtocol {
             
             switch action {
             case .otherDevice:
-                Task {
+                presentSessionVerificationScreen()
-                    await self.presentSessionVerificationScreen()
-                }
             case .recoveryKey:
                 presentRecoveryKeyScreen()
             case .skip:
@@ -263,12 +261,13 @@ class OnboardingFlowCoordinator: FlowCoordinatorProtocol {
         presentCoordinator(coordinator)
     }
     
-    private func presentSessionVerificationScreen() async {
+    private func presentSessionVerificationScreen() {
-        guard case let .success(sessionVerificationController) = await userSession.clientProxy.sessionVerificationControllerProxy() else {
+        guard let sessionVerificationController = userSession.clientProxy.sessionVerificationController else {
             fatalError("The sessionVerificationController should aways be valid at this point")
         }
         
-        let parameters = SessionVerificationScreenCoordinatorParameters(sessionVerificationControllerProxy: sessionVerificationController)
+        let parameters = SessionVerificationScreenCoordinatorParameters(sessionVerificationControllerProxy: sessionVerificationController,
+                                                                        flow: .initiator)
         
         let coordinator = SessionVerificationScreenCoordinator(parameters: parameters)
         

ElementX/Sources/FlowCoordinators/UserSessionFlowCoordinator.swift

@@ -7,6 +7,7 @@
 
 import AVKit
 import Combine
+import MatrixRustSDK
 import SwiftUI
 
 enum UserSessionFlowCoordinatorAction {
@@ -59,7 +60,6 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
     /// For testing purposes.
     var statePublisher: AnyPublisher<UserSessionFlowCoordinatorStateMachine.State, Never> { stateMachine.statePublisher }
     
-    // swiftlint:disable:next function_body_length
     init(userSession: UserSessionProtocol,
          navigationRootCoordinator: NavigationRootCoordinator,
          appLockService: AppLockServiceProtocol,
@@ -113,87 +113,7 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
         
         setupStateMachine()
         
-        userSession.sessionSecurityStatePublisher
+        setupObservers()
-            .map(\.verificationState)
-            .filter { $0 != .unknown }
-            .removeDuplicates()
-            .receive(on: DispatchQueue.main)
-            .sink { [weak self] _ in
-                guard let self else { return }
-                
-                attemptStartingOnboarding()
-            }
-            .store(in: &cancellables)
-        
-        settingsFlowCoordinator.actions.sink { [weak self] action in
-            guard let self else { return }
-            
-            switch action {
-            case .presentedSettings:
-                stateMachine.processEvent(.showSettingsScreen)
-            case .dismissedSettings:
-                stateMachine.processEvent(.dismissedSettingsScreen)
-            case .runLogoutFlow:
-                Task { await self.runLogoutFlow() }
-            case .clearCache:
-                actionsSubject.send(.clearCache)
-            case .forceLogout:
-                actionsSubject.send(.forceLogout)
-            }
-        }
-        .store(in: &cancellables)
-        
-        userSession.clientProxy.actionsPublisher
-            .receive(on: DispatchQueue.main)
-            .sink { action in
-                guard case let .receivedDecryptionError(info) = action else {
-                    return
-                }
-                
-                let timeToDecryptMs: Int
-                if let unsignedTimeToDecryptMs = info.timeToDecryptMs {
-                    timeToDecryptMs = Int(unsignedTimeToDecryptMs)
-                } else {
-                    timeToDecryptMs = -1
-                }
-                
-                switch info.cause {
-                case .unknown:
-                    analytics.trackError(context: nil, domain: .E2EE, name: .UnknownError, timeToDecryptMillis: timeToDecryptMs)
-                case .unknownDevice:
-                    analytics.trackError(context: nil, domain: .E2EE, name: .ExpectedSentByInsecureDevice, timeToDecryptMillis: timeToDecryptMs)
-                case .unsignedDevice:
-                    analytics.trackError(context: nil, domain: .E2EE, name: .ExpectedSentByInsecureDevice, timeToDecryptMillis: timeToDecryptMs)
-                case .verificationViolation:
-                    analytics.trackError(context: nil, domain: .E2EE, name: .ExpectedVerificationViolation, timeToDecryptMillis: timeToDecryptMs)
-                case .sentBeforeWeJoined:
-                    analytics.trackError(context: nil, domain: .E2EE, name: .ExpectedDueToMembership, timeToDecryptMillis: timeToDecryptMs)
-                }
-            }
-            .store(in: &cancellables)
-        
-        elementCallService.actions
-            .receive(on: DispatchQueue.main)
-            .sink { [weak self] action in
-                switch action {
-                case .endCall:
-                    self?.dismissCallScreenIfNeeded()
-                default:
-                    break
-                }
-            }
-            .store(in: &cancellables)
-        
-        onboardingFlowCoordinator.actions
-            .sink { [weak self] action in
-                guard let self else { return }
-                
-                switch action {
-                case .logout:
-                    logout()
-                }
-            }
-            .store(in: &cancellables)
     }
     
     func start() {
@@ -385,6 +305,129 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
         }
     }
     
+    private func setupObservers() {
+        userSession.sessionSecurityStatePublisher
+            .map(\.verificationState)
+            .filter { $0 != .unknown }
+            .removeDuplicates()
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] _ in
+                guard let self else { return }
+                
+                attemptStartingOnboarding()
+                
+                setupSessionVerificationRequestsObserver()
+            }
+            .store(in: &cancellables)
+        
+        settingsFlowCoordinator.actions.sink { [weak self] action in
+            guard let self else { return }
+            
+            switch action {
+            case .presentedSettings:
+                stateMachine.processEvent(.showSettingsScreen)
+            case .dismissedSettings:
+                stateMachine.processEvent(.dismissedSettingsScreen)
+            case .runLogoutFlow:
+                Task { await self.runLogoutFlow() }
+            case .clearCache:
+                actionsSubject.send(.clearCache)
+            case .forceLogout:
+                actionsSubject.send(.forceLogout)
+            }
+        }
+        .store(in: &cancellables)
+        
+        userSession.clientProxy.actionsPublisher
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] action in
+                guard let self, case let .receivedDecryptionError(info) = action else {
+                    return
+                }
+                
+                let timeToDecryptMs: Int
+                if let unsignedTimeToDecryptMs = info.timeToDecryptMs {
+                    timeToDecryptMs = Int(unsignedTimeToDecryptMs)
+                } else {
+                    timeToDecryptMs = -1
+                }
+                
+                switch info.cause {
+                case .unknown:
+                    analytics.trackError(context: nil, domain: .E2EE, name: .UnknownError, timeToDecryptMillis: timeToDecryptMs)
+                case .unknownDevice:
+                    analytics.trackError(context: nil, domain: .E2EE, name: .ExpectedSentByInsecureDevice, timeToDecryptMillis: timeToDecryptMs)
+                case .unsignedDevice:
+                    analytics.trackError(context: nil, domain: .E2EE, name: .ExpectedSentByInsecureDevice, timeToDecryptMillis: timeToDecryptMs)
+                case .verificationViolation:
+                    analytics.trackError(context: nil, domain: .E2EE, name: .ExpectedVerificationViolation, timeToDecryptMillis: timeToDecryptMs)
+                case .sentBeforeWeJoined:
+                    analytics.trackError(context: nil, domain: .E2EE, name: .ExpectedDueToMembership, timeToDecryptMillis: timeToDecryptMs)
+                }
+            }
+            .store(in: &cancellables)
+                
+        elementCallService.actions
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] action in
+                switch action {
+                case .endCall:
+                    self?.dismissCallScreenIfNeeded()
+                default:
+                    break
+                }
+            }
+            .store(in: &cancellables)
+        
+        onboardingFlowCoordinator.actions
+            .sink { [weak self] action in
+                guard let self else { return }
+                
+                switch action {
+                case .logout:
+                    logout()
+                }
+            }
+            .store(in: &cancellables)
+    }
+    
+    private func setupSessionVerificationRequestsObserver() {
+        userSession.clientProxy.sessionVerificationController?.actions
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] action in
+                guard let self, case .receivedVerificationRequest(let details) = action else {
+                    return
+                }
+                
+                MXLog.info("Received session verification request")
+                
+                presentSessionVerificationScreen(details: details)
+            }
+            .store(in: &cancellables)
+    }
+    
+    private func presentSessionVerificationScreen(details: SessionVerificationRequestDetails) {
+        guard let sessionVerificationController = userSession.clientProxy.sessionVerificationController else {
+            fatalError("The sessionVerificationController should aways be valid at this point")
+        }
+        
+        let parameters = SessionVerificationScreenCoordinatorParameters(sessionVerificationControllerProxy: sessionVerificationController,
+                                                                        flow: .responder(details: details))
+        
+        let coordinator = SessionVerificationScreenCoordinator(parameters: parameters)
+        
+        coordinator.actions
+            .sink { [weak self] action in
+                switch action {
+                case .done:
+                    self?.navigationSplitCoordinator.setSheetCoordinator(nil)
+                }
+            }
+            .store(in: &cancellables)
+        
+        navigationSplitCoordinator.setSheetCoordinator(coordinator)
+    }
+    
     private func presentHomeScreen() {
         let parameters = HomeScreenCoordinatorParameters(userSession: userSession,
                                                          bugReportService: bugReportService,
@@ -570,6 +613,8 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
         }
     }
     
+    // MARK: Session Verification
+    
     // MARK: Calls
     
     private func presentCallScreen(genericCallLink url: URL) {

ElementX/Sources/Generated/Strings.swift

@@ -266,6 +266,8 @@ internal enum L10n {
   internal static var bannerMigrateToNativeSlidingSyncForceLogoutTitle: String { return L10n.tr("Localizable", "banner_migrate_to_native_sliding_sync_force_logout_title") }
   /// Upgrade available
   internal static var bannerMigrateToNativeSlidingSyncTitle: String { return L10n.tr("Localizable", "banner_migrate_to_native_sliding_sync_title") }
+  /// Set up recovery
+  internal static var bannerSetUpRecoverySubmit: String { return L10n.tr("Localizable", "banner_set_up_recovery_submit") }
   /// About
   internal static var commonAbout: String { return L10n.tr("Localizable", "common_about") }
   /// Acceptable use policy
@@ -1009,7 +1011,7 @@ internal enum L10n {
   internal static var screenChangeServerSubtitle: String { return L10n.tr("Localizable", "screen_change_server_subtitle") }
   /// Select your server
   internal static var screenChangeServerTitle: String { return L10n.tr("Localizable", "screen_change_server_title") }
-  /// Turn off backup
+  /// Delete key storage
   internal static var screenChatBackupKeyBackupActionDisable: String { return L10n.tr("Localizable", "screen_chat_backup_key_backup_action_disable") }
   /// Turn on backup
   internal static var screenChatBackupKeyBackupActionEnable: String { return L10n.tr("Localizable", "screen_chat_backup_key_backup_action_enable") }
@@ -1258,15 +1260,15 @@ internal enum L10n {
   internal static var screenKeyBackupDisableConfirmationDescription: String { return L10n.tr("Localizable", "screen_key_backup_disable_confirmation_description") }
   /// Are you sure you want to turn off backup?
   internal static var screenKeyBackupDisableConfirmationTitle: String { return L10n.tr("Localizable", "screen_key_backup_disable_confirmation_title") }
-  /// Turning off backup will remove your current encryption key backup and turn off other security features. In this case, you will:
+  /// Deleting key storage will remove your cryptographic identity and message keys from the server and turn off the following security features:
   internal static var screenKeyBackupDisableDescription: String { return L10n.tr("Localizable", "screen_key_backup_disable_description") }
-  /// Not have encrypted message history on new devices
+  /// You will not have encrypted message history on new devices
   internal static var screenKeyBackupDisableDescriptionPoint1: String { return L10n.tr("Localizable", "screen_key_backup_disable_description_point_1") }
-  /// Lose access to your encrypted messages if you are signed out of %1$@ everywhere
+  /// You will lose access to your encrypted messages if you are signed out of %1$@ everywhere
   internal static func screenKeyBackupDisableDescriptionPoint2(_ p1: Any) -> String {
     return L10n.tr("Localizable", "screen_key_backup_disable_description_point_2", String(describing: p1))
   }
-  /// Are you sure you want to turn off backup?
+  /// Are you sure you want to turn off key storage and delete it?
   internal static var screenKeyBackupDisableTitle: String { return L10n.tr("Localizable", "screen_key_backup_disable_title") }
   /// This account has been deactivated.
   internal static var screenLoginErrorDeactivatedAccount: String { return L10n.tr("Localizable", "screen_login_error_deactivated_account") }
@@ -1536,7 +1538,7 @@ internal enum L10n {
   internal static var screenRecoveryKeySetupConfirmationDescription: String { return L10n.tr("Localizable", "screen_recovery_key_setup_confirmation_description") }
   /// Have you saved your recovery key?
   internal static var screenRecoveryKeySetupConfirmationTitle: String { return L10n.tr("Localizable", "screen_recovery_key_setup_confirmation_title") }
-  /// Your chat backup is protected by a recovery key. If you need a new recovery key after setup you can recreate by selecting ‘Change recovery key’.
+  /// Your key storage is protected by a recovery key. If you need a new recovery key after setup, you can recreate it by selecting ‘Change recovery key’.
   internal static var screenRecoveryKeySetupDescription: String { return L10n.tr("Localizable", "screen_recovery_key_setup_description") }
   /// Generate your recovery key
   internal static var screenRecoveryKeySetupGenerateKey: String { return L10n.tr("Localizable", "screen_recovery_key_setup_generate_key") }
@@ -2499,9 +2501,9 @@ internal enum L10n {
 
   internal enum Banner {
     internal enum SetUpRecovery {
-      /// Generate a new recovery key that can be used to restore your encrypted message history in case you lose access to your devices.
+      /// Recover your cryptographic identity and message history with a recovery key if you have lost all your existing devices.
       internal static var content: String { return L10n.tr("Localizable", "banner.set_up_recovery.content") }
-      /// Set up recovery
+      /// Set up recovery to protect your account
       internal static var title: String { return L10n.tr("Localizable", "banner.set_up_recovery.title") }
     }
   }

ElementX/Sources/Mocks/ClientProxyMock.swift

@@ -60,7 +60,6 @@ extension ClientProxyMock {
         logoutReturnValue = nil
         searchUsersSearchTermLimitReturnValue = .success(.init(results: [], limited: false))
         profileForReturnValue = .success(.init(userID: "@a:b.com", displayName: "Some user"))
-        sessionVerificationControllerProxyReturnValue = .failure(.sdkError(ClientProxyMockError.generic))
         ignoreUserReturnValue = .success(())
         unignoreUserReturnValue = .success(())
         

ElementX/Sources/Mocks/Generated/GeneratedMocks.swift

@@ -2210,6 +2210,7 @@ class ClientProxyMock: ClientProxyProtocol {
         set(value) { underlyingSecureBackupController = value }
     }
     var underlyingSecureBackupController: SecureBackupControllerProtocol!
+    var sessionVerificationController: SessionVerificationControllerProxyProtocol?
 
     //MARK: - isOnlyDeviceLeft
 
@@ -3519,70 +3520,6 @@ class ClientProxyMock: ClientProxyProtocol {
             return removeUserAvatarReturnValue
         }
     }
-    //MARK: - sessionVerificationControllerProxy
-
-    var sessionVerificationControllerProxyUnderlyingCallsCount = 0
-    var sessionVerificationControllerProxyCallsCount: Int {
-        get {
-            if Thread.isMainThread {
-                return sessionVerificationControllerProxyUnderlyingCallsCount
-            } else {
-                var returnValue: Int? = nil
-                DispatchQueue.main.sync {
-                    returnValue = sessionVerificationControllerProxyUnderlyingCallsCount
-                }
-
-                return returnValue!
-            }
-        }
-        set {
-            if Thread.isMainThread {
-                sessionVerificationControllerProxyUnderlyingCallsCount = newValue
-            } else {
-                DispatchQueue.main.sync {
-                    sessionVerificationControllerProxyUnderlyingCallsCount = newValue
-                }
-            }
-        }
-    }
-    var sessionVerificationControllerProxyCalled: Bool {
-        return sessionVerificationControllerProxyCallsCount > 0
-    }
-
-    var sessionVerificationControllerProxyUnderlyingReturnValue: Result<SessionVerificationControllerProxyProtocol, ClientProxyError>!
-    var sessionVerificationControllerProxyReturnValue: Result<SessionVerificationControllerProxyProtocol, ClientProxyError>! {
-        get {
-            if Thread.isMainThread {
-                return sessionVerificationControllerProxyUnderlyingReturnValue
-            } else {
-                var returnValue: Result<SessionVerificationControllerProxyProtocol, ClientProxyError>? = nil
-                DispatchQueue.main.sync {
-                    returnValue = sessionVerificationControllerProxyUnderlyingReturnValue
-                }
-
-                return returnValue!
-            }
-        }
-        set {
-            if Thread.isMainThread {
-                sessionVerificationControllerProxyUnderlyingReturnValue = newValue
-            } else {
-                DispatchQueue.main.sync {
-                    sessionVerificationControllerProxyUnderlyingReturnValue = newValue
-                }
-            }
-        }
-    }
-    var sessionVerificationControllerProxyClosure: (() async -> Result<SessionVerificationControllerProxyProtocol, ClientProxyError>)?
-
-    func sessionVerificationControllerProxy() async -> Result<SessionVerificationControllerProxyProtocol, ClientProxyError> {
-        sessionVerificationControllerProxyCallsCount += 1
-        if let sessionVerificationControllerProxyClosure = sessionVerificationControllerProxyClosure {
-            return await sessionVerificationControllerProxyClosure()
-        } else {
-            return sessionVerificationControllerProxyReturnValue
-        }
-    }
     //MARK: - deactivateAccount
 
     var deactivateAccountPasswordEraseDataUnderlyingCallsCount = 0
@@ -13435,12 +13372,146 @@ class SecureBackupControllerMock: SecureBackupControllerProtocol {
     }
 }
 class SessionVerificationControllerProxyMock: SessionVerificationControllerProxyProtocol {
-    var callbacks: PassthroughSubject<SessionVerificationControllerProxyCallback, Never> {
+    var actions: PassthroughSubject<SessionVerificationControllerProxyAction, Never> {
-        get { return underlyingCallbacks }
+        get { return underlyingActions }
-        set(value) { underlyingCallbacks = value }
+        set(value) { underlyingActions = value }
     }
-    var underlyingCallbacks: PassthroughSubject<SessionVerificationControllerProxyCallback, Never>!
+    var underlyingActions: PassthroughSubject<SessionVerificationControllerProxyAction, Never>!
 
+    //MARK: - acknowledgeVerificationRequest
+
+    var acknowledgeVerificationRequestDetailsUnderlyingCallsCount = 0
+    var acknowledgeVerificationRequestDetailsCallsCount: Int {
+        get {
+            if Thread.isMainThread {
+                return acknowledgeVerificationRequestDetailsUnderlyingCallsCount
+            } else {
+                var returnValue: Int? = nil
+                DispatchQueue.main.sync {
+                    returnValue = acknowledgeVerificationRequestDetailsUnderlyingCallsCount
+                }
+
+                return returnValue!
+            }
+        }
+        set {
+            if Thread.isMainThread {
+                acknowledgeVerificationRequestDetailsUnderlyingCallsCount = newValue
+            } else {
+                DispatchQueue.main.sync {
+                    acknowledgeVerificationRequestDetailsUnderlyingCallsCount = newValue
+                }
+            }
+        }
+    }
+    var acknowledgeVerificationRequestDetailsCalled: Bool {
+        return acknowledgeVerificationRequestDetailsCallsCount > 0
+    }
+    var acknowledgeVerificationRequestDetailsReceivedDetails: SessionVerificationRequestDetails?
+    var acknowledgeVerificationRequestDetailsReceivedInvocations: [SessionVerificationRequestDetails] = []
+
+    var acknowledgeVerificationRequestDetailsUnderlyingReturnValue: Result<Void, SessionVerificationControllerProxyError>!
+    var acknowledgeVerificationRequestDetailsReturnValue: Result<Void, SessionVerificationControllerProxyError>! {
+        get {
+            if Thread.isMainThread {
+                return acknowledgeVerificationRequestDetailsUnderlyingReturnValue
+            } else {
+                var returnValue: Result<Void, SessionVerificationControllerProxyError>? = nil
+                DispatchQueue.main.sync {
+                    returnValue = acknowledgeVerificationRequestDetailsUnderlyingReturnValue
+                }
+
+                return returnValue!
+            }
+        }
+        set {
+            if Thread.isMainThread {
+                acknowledgeVerificationRequestDetailsUnderlyingReturnValue = newValue
+            } else {
+                DispatchQueue.main.sync {
+                    acknowledgeVerificationRequestDetailsUnderlyingReturnValue = newValue
+                }
+            }
+        }
+    }
+    var acknowledgeVerificationRequestDetailsClosure: ((SessionVerificationRequestDetails) async -> Result<Void, SessionVerificationControllerProxyError>)?
+
+    func acknowledgeVerificationRequest(details: SessionVerificationRequestDetails) async -> Result<Void, SessionVerificationControllerProxyError> {
+        acknowledgeVerificationRequestDetailsCallsCount += 1
+        acknowledgeVerificationRequestDetailsReceivedDetails = details
+        DispatchQueue.main.async {
+            self.acknowledgeVerificationRequestDetailsReceivedInvocations.append(details)
+        }
+        if let acknowledgeVerificationRequestDetailsClosure = acknowledgeVerificationRequestDetailsClosure {
+            return await acknowledgeVerificationRequestDetailsClosure(details)
+        } else {
+            return acknowledgeVerificationRequestDetailsReturnValue
+        }
+    }
+    //MARK: - acceptVerificationRequest
+
+    var acceptVerificationRequestUnderlyingCallsCount = 0
+    var acceptVerificationRequestCallsCount: Int {
+        get {
+            if Thread.isMainThread {
+                return acceptVerificationRequestUnderlyingCallsCount
+            } else {
+                var returnValue: Int? = nil
+                DispatchQueue.main.sync {
+                    returnValue = acceptVerificationRequestUnderlyingCallsCount
+                }
+
+                return returnValue!
+            }
+        }
+        set {
+            if Thread.isMainThread {
+                acceptVerificationRequestUnderlyingCallsCount = newValue
+            } else {
+                DispatchQueue.main.sync {
+                    acceptVerificationRequestUnderlyingCallsCount = newValue
+                }
+            }
+        }
+    }
+    var acceptVerificationRequestCalled: Bool {
+        return acceptVerificationRequestCallsCount > 0
+    }
+
+    var acceptVerificationRequestUnderlyingReturnValue: Result<Void, SessionVerificationControllerProxyError>!
+    var acceptVerificationRequestReturnValue: Result<Void, SessionVerificationControllerProxyError>! {
+        get {
+            if Thread.isMainThread {
+                return acceptVerificationRequestUnderlyingReturnValue
+            } else {
+                var returnValue: Result<Void, SessionVerificationControllerProxyError>? = nil
+                DispatchQueue.main.sync {
+                    returnValue = acceptVerificationRequestUnderlyingReturnValue
+                }
+
+                return returnValue!
+            }
+        }
+        set {
+            if Thread.isMainThread {
+                acceptVerificationRequestUnderlyingReturnValue = newValue
+            } else {
+                DispatchQueue.main.sync {
+                    acceptVerificationRequestUnderlyingReturnValue = newValue
+                }
+            }
+        }
+    }
+    var acceptVerificationRequestClosure: (() async -> Result<Void, SessionVerificationControllerProxyError>)?
+
+    func acceptVerificationRequest() async -> Result<Void, SessionVerificationControllerProxyError> {
+        acceptVerificationRequestCallsCount += 1
+        if let acceptVerificationRequestClosure = acceptVerificationRequestClosure {
+            return await acceptVerificationRequestClosure()
+        } else {
+            return acceptVerificationRequestReturnValue
+        }
+    }
     //MARK: - requestVerification
 
     var requestVerificationUnderlyingCallsCount = 0

ElementX/Sources/Mocks/Generated/SDKGeneratedMocks.swift

@@ -16529,6 +16529,92 @@ open class SessionVerificationControllerSDKMock: MatrixRustSDK.SessionVerificati
 
     fileprivate var pointer: UnsafeMutableRawPointer!
 
+    //MARK: - acceptVerificationRequest
+
+    open var acceptVerificationRequestThrowableError: Error?
+    var acceptVerificationRequestUnderlyingCallsCount = 0
+    open var acceptVerificationRequestCallsCount: Int {
+        get {
+            if Thread.isMainThread {
+                return acceptVerificationRequestUnderlyingCallsCount
+            } else {
+                var returnValue: Int? = nil
+                DispatchQueue.main.sync {
+                    returnValue = acceptVerificationRequestUnderlyingCallsCount
+                }
+
+                return returnValue!
+            }
+        }
+        set {
+            if Thread.isMainThread {
+                acceptVerificationRequestUnderlyingCallsCount = newValue
+            } else {
+                DispatchQueue.main.sync {
+                    acceptVerificationRequestUnderlyingCallsCount = newValue
+                }
+            }
+        }
+    }
+    open var acceptVerificationRequestCalled: Bool {
+        return acceptVerificationRequestCallsCount > 0
+    }
+    open var acceptVerificationRequestClosure: (() async throws -> Void)?
+
+    open override func acceptVerificationRequest() async throws {
+        if let error = acceptVerificationRequestThrowableError {
+            throw error
+        }
+        acceptVerificationRequestCallsCount += 1
+        try await acceptVerificationRequestClosure?()
+    }
+
+    //MARK: - acknowledgeVerificationRequest
+
+    open var acknowledgeVerificationRequestSenderIdFlowIdThrowableError: Error?
+    var acknowledgeVerificationRequestSenderIdFlowIdUnderlyingCallsCount = 0
+    open var acknowledgeVerificationRequestSenderIdFlowIdCallsCount: Int {
+        get {
+            if Thread.isMainThread {
+                return acknowledgeVerificationRequestSenderIdFlowIdUnderlyingCallsCount
+            } else {
+                var returnValue: Int? = nil
+                DispatchQueue.main.sync {
+                    returnValue = acknowledgeVerificationRequestSenderIdFlowIdUnderlyingCallsCount
+                }
+
+                return returnValue!
+            }
+        }
+        set {
+            if Thread.isMainThread {
+                acknowledgeVerificationRequestSenderIdFlowIdUnderlyingCallsCount = newValue
+            } else {
+                DispatchQueue.main.sync {
+                    acknowledgeVerificationRequestSenderIdFlowIdUnderlyingCallsCount = newValue
+                }
+            }
+        }
+    }
+    open var acknowledgeVerificationRequestSenderIdFlowIdCalled: Bool {
+        return acknowledgeVerificationRequestSenderIdFlowIdCallsCount > 0
+    }
+    open var acknowledgeVerificationRequestSenderIdFlowIdReceivedArguments: (senderId: String, flowId: String)?
+    open var acknowledgeVerificationRequestSenderIdFlowIdReceivedInvocations: [(senderId: String, flowId: String)] = []
+    open var acknowledgeVerificationRequestSenderIdFlowIdClosure: ((String, String) async throws -> Void)?
+
+    open override func acknowledgeVerificationRequest(senderId: String, flowId: String) async throws {
+        if let error = acknowledgeVerificationRequestSenderIdFlowIdThrowableError {
+            throw error
+        }
+        acknowledgeVerificationRequestSenderIdFlowIdCallsCount += 1
+        acknowledgeVerificationRequestSenderIdFlowIdReceivedArguments = (senderId: senderId, flowId: flowId)
+        DispatchQueue.main.async {
+            self.acknowledgeVerificationRequestSenderIdFlowIdReceivedInvocations.append((senderId: senderId, flowId: flowId))
+        }
+        try await acknowledgeVerificationRequestSenderIdFlowIdClosure?(senderId, flowId)
+    }
+
     //MARK: - approveVerification
 
     open var approveVerificationThrowableError: Error?
@@ -16649,75 +16735,6 @@ open class SessionVerificationControllerSDKMock: MatrixRustSDK.SessionVerificati
         try await declineVerificationClosure?()
     }
 
-    //MARK: - isVerified
-
-    open var isVerifiedThrowableError: Error?
-    var isVerifiedUnderlyingCallsCount = 0
-    open var isVerifiedCallsCount: Int {
-        get {
-            if Thread.isMainThread {
-                return isVerifiedUnderlyingCallsCount
-            } else {
-                var returnValue: Int? = nil
-                DispatchQueue.main.sync {
-                    returnValue = isVerifiedUnderlyingCallsCount
-                }
-
-                return returnValue!
-            }
-        }
-        set {
-            if Thread.isMainThread {
-                isVerifiedUnderlyingCallsCount = newValue
-            } else {
-                DispatchQueue.main.sync {
-                    isVerifiedUnderlyingCallsCount = newValue
-                }
-            }
-        }
-    }
-    open var isVerifiedCalled: Bool {
-        return isVerifiedCallsCount > 0
-    }
-
-    var isVerifiedUnderlyingReturnValue: Bool!
-    open var isVerifiedReturnValue: Bool! {
-        get {
-            if Thread.isMainThread {
-                return isVerifiedUnderlyingReturnValue
-            } else {
-                var returnValue: Bool? = nil
-                DispatchQueue.main.sync {
-                    returnValue = isVerifiedUnderlyingReturnValue
-                }
-
-                return returnValue!
-            }
-        }
-        set {
-            if Thread.isMainThread {
-                isVerifiedUnderlyingReturnValue = newValue
-            } else {
-                DispatchQueue.main.sync {
-                    isVerifiedUnderlyingReturnValue = newValue
-                }
-            }
-        }
-    }
-    open var isVerifiedClosure: (() async throws -> Bool)?
-
-    open override func isVerified() async throws -> Bool {
-        if let error = isVerifiedThrowableError {
-            throw error
-        }
-        isVerifiedCallsCount += 1
-        if let isVerifiedClosure = isVerifiedClosure {
-            return try await isVerifiedClosure()
-        } else {
-            return isVerifiedReturnValue
-        }
-    }
-
     //MARK: - requestVerification
 
     open var requestVerificationThrowableError: Error?

ElementX/Sources/Mocks/SessionVerificationControllerProxyMock.swift

@@ -16,16 +16,18 @@ extension SessionVerificationControllerProxyMock {
                          SessionVerificationEmoji(symbol: "🏁", description: "Flag"),
                          SessionVerificationEmoji(symbol: "🌏", description: "Globe")]
 
-    static func configureMock(callbacks: PassthroughSubject<SessionVerificationControllerProxyCallback, Never> = .init(),
+    static func configureMock(actions: PassthroughSubject<SessionVerificationControllerProxyAction, Never> = .init(),
                               isVerified: Bool = false,
                               requestDelay: Duration = .seconds(1)) -> SessionVerificationControllerProxyMock {
         let mock = SessionVerificationControllerProxyMock()
-        mock.underlyingCallbacks = callbacks
+        mock.underlyingActions = actions
+        
+        mock.acknowledgeVerificationRequestDetailsReturnValue = .success(())
 
         mock.requestVerificationClosure = { [unowned mock] in
             Task.detached {
                 try await Task.sleep(for: requestDelay)
-                mock.callbacks.send(.acceptedVerificationRequest)
+                mock.actions.send(.acceptedVerificationRequest)
             }
 
             return .success(())
@@ -34,11 +36,11 @@ extension SessionVerificationControllerProxyMock {
         mock.startSasVerificationClosure = { [unowned mock] in
             Task.detached {
                 try await Task.sleep(for: requestDelay)
-                mock.callbacks.send(.startedSasVerification)
+                mock.actions.send(.startedSasVerification)
 
                 Task.detached {
                     try await Task.sleep(for: requestDelay)
-                    mock.callbacks.send(.receivedVerificationData(emojis))
+                    mock.actions.send(.receivedVerificationData(emojis))
                 }
             }
 
@@ -48,7 +50,7 @@ extension SessionVerificationControllerProxyMock {
         mock.approveVerificationClosure = { [unowned mock] in
             Task.detached {
                 try await Task.sleep(for: requestDelay)
-                mock.callbacks.send(.finished)
+                mock.actions.send(.finished)
             }
 
             return .success(())
@@ -57,7 +59,7 @@ extension SessionVerificationControllerProxyMock {
         mock.declineVerificationClosure = { [unowned mock] in
             Task.detached {
                 try await Task.sleep(for: requestDelay)
-                mock.callbacks.send(.cancelled)
+                mock.actions.send(.cancelled)
             }
 
             return .success(())
@@ -66,7 +68,7 @@ extension SessionVerificationControllerProxyMock {
         mock.cancelVerificationClosure = { [unowned mock] in
             Task.detached {
                 try await Task.sleep(for: requestDelay)
-                mock.callbacks.send(.cancelled)
+                mock.actions.send(.cancelled)
             }
 
             return .success(())

ElementX/Sources/Other/AccessibilityIdentifiers.swift

@@ -184,6 +184,8 @@ enum A11yIdentifiers {
     }
     
     struct SessionVerificationScreen {
+        let acceptVerificationRequest = "session_verification-accept_verification_request"
+        let ignoreVerificationRequest = "session_verification-ignore_verification_request"
         let requestVerification = "session_verification-request_verification"
         let startSasVerification = "session_verification-start_sas_verification"
         let acceptChallenge = "session_verification-accept_challenge"

ElementX/Sources/Screens/Onboarding/SessionVerificationScreen/SessionVerificationScreenCoordinator.swift

@@ -6,14 +6,21 @@
 //
 
 import Combine
+import MatrixRustSDK
 import SwiftUI
 
 enum SessionVerificationScreenCoordinatorAction {
     case done
 }
 
+enum SessionVerificationScreenFlow {
+    case initiator
+    case responder(details: SessionVerificationRequestDetails)
+}
+
 struct SessionVerificationScreenCoordinatorParameters {
     let sessionVerificationControllerProxy: SessionVerificationControllerProxyProtocol
+    let flow: SessionVerificationScreenFlow
 }
 
 final class SessionVerificationScreenCoordinator: CoordinatorProtocol {
@@ -27,7 +34,8 @@ final class SessionVerificationScreenCoordinator: CoordinatorProtocol {
     }
     
     init(parameters: SessionVerificationScreenCoordinatorParameters) {
-        viewModel = SessionVerificationScreenViewModel(sessionVerificationControllerProxy: parameters.sessionVerificationControllerProxy)
+        viewModel = SessionVerificationScreenViewModel(sessionVerificationControllerProxy: parameters.sessionVerificationControllerProxy,
+                                                       flow: parameters.flow)
     }
     
     // MARK: - Public

ElementX/Sources/Screens/Onboarding/SessionVerificationScreen/SessionVerificationScreenModels.swift

@@ -11,13 +11,61 @@ enum SessionVerificationScreenViewModelAction {
     case finished
 }
 
+enum SessionVerificationScreenViewAction {
+    case acceptVerificationRequest
+    case ignoreVerificationRequest
+    case requestVerification
+    case startSasVerification
+    case restart
+    case accept
+    case decline
+    case done
+}
+
 struct SessionVerificationScreenViewState: BindableState {
-    var verificationState: SessionVerificationScreenStateMachine.State = .initial
+    let flow: SessionVerificationScreenFlow
+    var verificationState: SessionVerificationScreenStateMachine.State
+    
+    var headerImageName: String {
+        switch verificationState {
+        case .initial:
+            return "lock"
+        case .acceptingVerificationRequest:
+            return "hourglass"
+        case .requestingVerification:
+            return "hourglass"
+        case .verificationRequestAccepted:
+            return "face.smiling"
+        case .startingSasVerification:
+            return "hourglass"
+        case .sasVerificationStarted:
+            return "hourglass"
+        case .cancelling:
+            return "hourglass"
+        case .acceptingChallenge:
+            return "hourglass"
+        case .decliningChallenge:
+            return "hourglass"
+        case .showingChallenge:
+            return "face.smiling"
+        case .verified:
+            return "checkmark.shield"
+        case .cancelled:
+            return "exclamationmark.shield"
+        }
+    }
     
     var title: String? {
         switch verificationState {
         case .initial:
-            return L10n.screenSessionVerificationOpenExistingSessionTitle
+            switch flow {
+            case .initiator:
+                return L10n.screenSessionVerificationOpenExistingSessionTitle
+            case .responder:
+                return L10n.screenSessionVerificationRequestTitle
+            }
+        case .acceptingVerificationRequest:
+            return L10n.screenSessionVerificationRequestTitle
         case .requestingVerification:
             return L10n.screenSessionVerificationWaitingToAcceptTitle
         case .verificationRequestAccepted:
@@ -31,13 +79,13 @@ struct SessionVerificationScreenViewState: BindableState {
         case .acceptingChallenge:
             return L10n.screenSessionVerificationCompareEmojisTitle
         case .decliningChallenge:
-            return nil
+            return L10n.screenSessionVerificationCompareEmojisTitle
         case .verified:
             return L10n.commonVerificationComplete
         case .cancelling:
             return nil
         case .cancelled:
-            return L10n.commonVerificationCancelled
+            return L10n.commonVerificationFailed
         }
     }
     
@@ -48,7 +96,14 @@ struct SessionVerificationScreenViewState: BindableState {
     var message: String {
         switch verificationState {
         case .initial:
-            return L10n.screenSessionVerificationOpenExistingSessionSubtitle
+            switch flow {
+            case .initiator:
+                return L10n.screenSessionVerificationOpenExistingSessionSubtitle
+            case .responder:
+                return L10n.screenSessionVerificationRequestSubtitle
+            }
+        case .acceptingVerificationRequest:
+            return L10n.screenSessionVerificationRequestSubtitle
         case .requestingVerification:
             return L10n.screenSessionVerificationWaitingToAcceptSubtitle
         case .verificationRequestAccepted:
@@ -60,7 +115,7 @@ struct SessionVerificationScreenViewState: BindableState {
         case .acceptingChallenge:
             return L10n.screenSessionVerificationCompareEmojisSubtitle
         case .decliningChallenge:
-            return L10n.commonWaiting
+            return L10n.screenSessionVerificationCompareEmojisSubtitle
         case .cancelling:
             return L10n.commonWaiting
         case .showingChallenge:
@@ -68,15 +123,7 @@ struct SessionVerificationScreenViewState: BindableState {
         case .verified:
             return L10n.screenSessionVerificationCompleteSubtitle
         case .cancelled:
-            return L10n.screenSessionVerificationCancelledSubtitle
+            return L10n.screenSessionVerificationFailedSubtitle
         }
     }
 }
-
-enum SessionVerificationScreenViewAction {
-    case requestVerification
-    case startSasVerification
-    case restart
-    case accept
-    case decline
-}

ElementX/Sources/Screens/Onboarding/SessionVerificationScreen/SessionVerificationScreenStateMachine.swift

@@ -13,6 +13,8 @@ class SessionVerificationScreenStateMachine {
     enum State: StateType {
         /// The initial state, before verification started
         case initial
+        /// Accepting the remote verification request
+        case acceptingVerificationRequest
         /// Waiting for verification acceptance
         case requestingVerification
         /// Verification request accepted. Waiting for start
@@ -37,6 +39,8 @@ class SessionVerificationScreenStateMachine {
     
     /// Events that can be triggered on the SessionVerification state machine
     enum Event: EventType {
+        /// Accept the remote verification request
+        case acceptVerificationRequest
         /// Request verification
         case requestVerification
         /// The current verification request has been accepted
@@ -69,16 +73,23 @@ class SessionVerificationScreenStateMachine {
         stateMachine.state
     }
 
-    init() {
+    init(state: State) {
-        stateMachine = StateMachine(state: .initial)
+        stateMachine = StateMachine(state: state)
         configure()
     }
     
     private func configure() {
+        stateMachine.addRoutes(event: .acceptVerificationRequest, transitions: [.initial => .acceptingVerificationRequest])
         stateMachine.addRoutes(event: .requestVerification, transitions: [.initial => .requestingVerification])
-        stateMachine.addRoutes(event: .didAcceptVerificationRequest, transitions: [.requestingVerification => .verificationRequestAccepted])
+        
+        stateMachine.addRoutes(event: .didAcceptVerificationRequest, transitions: [.acceptingVerificationRequest => .verificationRequestAccepted,
+                                                                                   .requestingVerification => .verificationRequestAccepted])
+        
         stateMachine.addRoutes(event: .startSasVerification, transitions: [.verificationRequestAccepted => .startingSasVerification])
-        stateMachine.addRoutes(event: .didFail, transitions: [.requestingVerification => .initial])
+        
+        stateMachine.addRoutes(event: .didFail, transitions: [.requestingVerification => .initial,
+                                                              .acceptingVerificationRequest => .initial])
+        
         stateMachine.addRoutes(event: .restart, transitions: [.cancelled => .initial])
         
         // Transitions with associated values need to be handled through `addRouteMapping`

ElementX/Sources/Screens/Onboarding/SessionVerificationScreen/SessionVerificationScreenViewModel.swift

@@ -12,6 +12,7 @@ typealias SessionVerificationViewModelType = StateStoreViewModel<SessionVerifica
 
 class SessionVerificationScreenViewModel: SessionVerificationViewModelType, SessionVerificationScreenViewModelProtocol {
     private let sessionVerificationControllerProxy: SessionVerificationControllerProxyProtocol
+    private let flow: SessionVerificationScreenFlow
     
     private var stateMachine: SessionVerificationScreenStateMachine
 
@@ -22,21 +23,25 @@ class SessionVerificationScreenViewModel: SessionVerificationViewModelType, Sess
     }
 
     init(sessionVerificationControllerProxy: SessionVerificationControllerProxyProtocol,
+         flow: SessionVerificationScreenFlow,
          verificationState: SessionVerificationScreenStateMachine.State = .initial) {
         self.sessionVerificationControllerProxy = sessionVerificationControllerProxy
+        self.flow = flow
         
-        stateMachine = SessionVerificationScreenStateMachine()
+        stateMachine = SessionVerificationScreenStateMachine(state: verificationState)
         
-        super.init(initialViewState: .init(verificationState: verificationState))
+        super.init(initialViewState: .init(flow: flow, verificationState: verificationState))
         
         setupStateMachine()
         
-        sessionVerificationControllerProxy.callbacks
+        sessionVerificationControllerProxy.actions
             .receive(on: DispatchQueue.main)
             .sink { [weak self] callback in
                 guard let self else { return }
                 
                 switch callback {
+                case .receivedVerificationRequest:
+                    break // Incoming verification requests are handled on the higher levels
                 case .acceptedVerificationRequest:
                     self.stateMachine.processEvent(.didAcceptVerificationRequest)
                 case .startedSasVerification:
@@ -57,10 +62,20 @@ class SessionVerificationScreenViewModel: SessionVerificationViewModelType, Sess
                 }
             }
             .store(in: &cancellables)
+        
+        if case .responder(let details) = flow {
+            Task {
+                await self.sessionVerificationControllerProxy.acknowledgeVerificationRequest(details: details)
+            }
+        }
     }
     
     override func process(viewAction: SessionVerificationScreenViewAction) {
         switch viewAction {
+        case .acceptVerificationRequest:
+            stateMachine.processEvent(.acceptVerificationRequest)
+        case .ignoreVerificationRequest:
+            actionsSubject.send(.finished)
         case .requestVerification:
             stateMachine.processEvent(.requestVerification)
         case .startSasVerification:
@@ -71,13 +86,16 @@ class SessionVerificationScreenViewModel: SessionVerificationViewModelType, Sess
             stateMachine.processEvent(.acceptChallenge)
         case .decline:
             stateMachine.processEvent(.declineChallenge)
+        case .done:
+            actionsSubject.send(.finished)
         }
     }
     
     func stop() {
-        let uncancellableStates: [SessionVerificationScreenStateMachine.State] = [.initial, .verified, .cancelled]
+        switch stateMachine.state {
-        
+        case .initial, .verified, .cancelled: // non-cancellable states
-        if !uncancellableStates.contains(stateMachine.state) {
+            return
+        default:
             stateMachine.processEvent(.cancel)
         }
     }
@@ -91,6 +109,8 @@ class SessionVerificationScreenViewModel: SessionVerificationViewModelType, Sess
             state.verificationState = context.toState
             
             switch (context.fromState, context.event, context.toState) {
+            case (.initial, .acceptVerificationRequest, .acceptingVerificationRequest):
+                acceptVerificationRequest()
             case (.initial, .requestVerification, .requestingVerification):
                 requestVerification()
             case (.verificationRequestAccepted, .startSasVerification, .startingSasVerification):
@@ -103,6 +123,10 @@ class SessionVerificationScreenViewModel: SessionVerificationViewModelType, Sess
                 cancelVerification()
             case (_, _, .verified):
                 actionsSubject.send(.finished)
+            case (.initial, _, .cancelled):
+                if case .responder = flow {
+                    actionsSubject.send(.finished)
+                }
             default:
                 break
             }
@@ -113,6 +137,21 @@ class SessionVerificationScreenViewModel: SessionVerificationViewModelType, Sess
         }
     }
     
+    private func acceptVerificationRequest() {
+        Task {
+            guard case .responder = flow else {
+                fatalError("Incorrect API usage.")
+            }
+            
+            switch await sessionVerificationControllerProxy.acceptVerificationRequest() {
+            case .success:
+                stateMachine.processEvent(.didAcceptVerificationRequest)
+            case .failure:
+                stateMachine.processEvent(.didFail)
+            }
+        }
+    }
+    
     private func requestVerification() {
         Task {
             switch await sessionVerificationControllerProxy.requestVerification() {

ElementX/Sources/Screens/Onboarding/SessionVerificationScreen/View/SessionVerificationRequestDetailsView.swift

@@ -0,0 +1,80 @@
+//
+// Copyright 2024 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only
+// Please see LICENSE in the repository root for full details.
+//
+
+import Compound
+import MatrixRustSDK
+import SwiftUI
+
+struct SessionVerificationRequestDetailsView: View {
+    @ScaledMetric private var iconSize = 30.0
+    private let outerShape = RoundedRectangle(cornerRadius: 8)
+    
+    let details: SessionVerificationRequestDetails
+    
+    var body: some View {
+        VStack(spacing: 24) {
+            VStack(alignment: .leading, spacing: 12) {
+                HStack(spacing: 16) {
+                    CompoundIcon(\.devices)
+                        .frame(width: iconSize, height: iconSize)
+                        .foregroundColor(.compound.iconSecondary)
+                        .padding(6)
+                        .background(.compound.bgSubtleSecondary)
+                        .clipShape(RoundedRectangle(cornerRadius: 8))
+                    
+                    Text(details.displayName ?? details.senderID)
+                        .font(.compound.bodyMDSemibold)
+                        .foregroundColor(.compound.textPrimary)
+                        .frame(maxWidth: .infinity, alignment: .leading)
+                }
+                
+                HStack(spacing: 40) {
+                    VStack(alignment: .leading, spacing: 0) {
+                        Text(L10n.screenSessionVerificationRequestDetailsTimestamp)
+                            .font(.compound.bodySM)
+                            .foregroundColor(.compound.textSecondary)
+                        Text(details.firstSeenDate.formattedMinimal())
+                            .font(.compound.bodyMD)
+                            .foregroundColor(.compound.textPrimary)
+                    }
+                    
+                    VStack(alignment: .leading, spacing: 0) {
+                        Text(L10n.commonDeviceId)
+                            .font(.compound.bodySM)
+                            .foregroundColor(.compound.textSecondary)
+                        Text(details.deviceID)
+                            .font(.compound.bodyMD)
+                            .foregroundColor(.compound.textPrimary)
+                    }
+                }
+            }
+            .padding(24)
+            .clipShape(outerShape)
+            .overlay {
+                outerShape
+                    .inset(by: 0.25)
+                    .stroke(.compound.borderDisabled)
+            }
+            
+            Text(L10n.screenSessionVerificationRequestFooter)
+                .font(.compound.bodyMDSemibold)
+                .foregroundColor(.compound.textPrimary)
+        }
+    }
+}
+
+struct SessionVerificationRequestDetailsView_Previews: PreviewProvider, TestablePreview {
+    static var previews: some View {
+        let details = SessionVerificationRequestDetails(senderID: "@bob:matrix.org",
+                                                        flowID: "123",
+                                                        deviceID: "CODEMISTAKE",
+                                                        displayName: "Bob's Element X iOS",
+                                                        firstSeenDate: .init(timeIntervalSince1970: 0))
+        
+        SessionVerificationRequestDetailsView(details: details)
+    }
+}

ElementX/Sources/Screens/Onboarding/SessionVerificationScreen/View/SessionVerificationScreen.swift

@@ -5,6 +5,8 @@
 // Please see LICENSE in the repository root for full details.
 //
 
+import Compound
+import MatrixRustSDK
 import SwiftUI
 
 struct SessionVerificationScreen: View {
@@ -14,7 +16,6 @@ struct SessionVerificationScreen: View {
         FullscreenDialog {
             VStack(spacing: 32) {
                 screenHeader
-                Spacer()
                 mainContent
             }
         } bottomContent: {
@@ -27,33 +28,6 @@ struct SessionVerificationScreen: View {
     
     // MARK: - Private
     
-    private var headerImageName: String {
-        switch context.viewState.verificationState {
-        case .initial:
-            return "lock"
-        case .cancelled:
-            return "exclamationmark.shield"
-        case .requestingVerification:
-            return "hourglass"
-        case .verificationRequestAccepted:
-            return "face.smiling"
-        case .startingSasVerification:
-            return "hourglass"
-        case .sasVerificationStarted:
-            return "hourglass"
-        case .cancelling:
-            return "hourglass"
-        case .acceptingChallenge:
-            return "hourglass"
-        case .decliningChallenge:
-            return "hourglass"
-        case .showingChallenge:
-            return "face.smiling"
-        case .verified:
-            return "checkmark.shield"
-        }
-    }
-    
     @ViewBuilder
     private var screenHeader: some View {
         VStack(spacing: 0) {
@@ -61,7 +35,7 @@ struct SessionVerificationScreen: View {
                 BigIcon(icon: \.lockSolid)
                     .padding(.bottom, 16)
             } else {
-                Image(systemName: headerImageName)
+                Image(systemName: context.viewState.headerImageName)
                     .bigIcon()
                     .padding(.bottom, 16)
             }
@@ -83,18 +57,17 @@ struct SessionVerificationScreen: View {
     @ViewBuilder
     private var mainContent: some View {
         switch context.viewState.verificationState {
-        case .showingChallenge(let emojis):
+        case .initial:
+            switch context.viewState.flow {
+            case .responder(let details):
+                SessionVerificationRequestDetailsView(details: details)
+            default:
+                EmptyView()
+            }
+        case .showingChallenge(let emojis), .acceptingChallenge(let emojis), .decliningChallenge(let emojis):
             emojisPanel(with: emojis)
                 .accessibilityIdentifier(A11yIdentifiers.sessionVerificationScreen.emojiWrapper)
-        case .acceptingChallenge(let emojis):
-            emojisPanel(with: emojis)
-                .accessibilityIdentifier(A11yIdentifiers.sessionVerificationScreen.emojiWrapper)
-        case .requestingVerification:
-            ProgressView()
-                .tint(.compound.textSecondary)
-                .scaleEffect(2)
         default:
-            // In All other cases, we just want an empty view
             EmptyView()
         }
     }
@@ -119,18 +92,41 @@ struct SessionVerificationScreen: View {
     private var actionButtons: some View {
         switch context.viewState.verificationState {
         case .initial:
-            VStack(spacing: 32) {
+            switch context.viewState.flow {
+            case .initiator:
                 Button(L10n.actionStartVerification) {
                     context.send(viewAction: .requestVerification)
                 }
                 .buttonStyle(.compound(.primary))
                 .accessibilityIdentifier(A11yIdentifiers.sessionVerificationScreen.requestVerification)
+            case .responder:
+                VStack(spacing: 16) {
+                    Button(L10n.actionStart) {
+                        context.send(viewAction: .acceptVerificationRequest)
+                    }
+                    .buttonStyle(.compound(.primary))
+                    .accessibilityIdentifier(A11yIdentifiers.sessionVerificationScreen.acceptVerificationRequest)
+                    
+                    Button(L10n.actionIgnore) {
+                        context.send(viewAction: .ignoreVerificationRequest)
+                    }
+                    .buttonStyle(.compound(.plain))
+                    .accessibilityIdentifier(A11yIdentifiers.sessionVerificationScreen.ignoreVerificationRequest)
+                }
             }
         case .cancelled:
-            Button(L10n.actionRetry) {
+            switch context.viewState.flow {
-                context.send(viewAction: .restart)
+            case .initiator:
+                Button(L10n.actionRetry) {
+                    context.send(viewAction: .restart)
+                }
+                .buttonStyle(.compound(.primary))
+            case .responder:
+                Button(L10n.actionDone) {
+                    context.send(viewAction: .done)
+                }
+                .buttonStyle(.compound(.primary))
             }
-            .buttonStyle(.compound(.primary))
             
         case .verificationRequestAccepted:
             Button(L10n.actionStart) {
@@ -150,31 +146,15 @@ struct SessionVerificationScreen: View {
                 Button(L10n.screenSessionVerificationTheyDontMatch) {
                     context.send(viewAction: .decline)
                 }
-                .font(.compound.bodyLGSemibold)
+                .buttonStyle(.compound(.plain))
                 .accessibilityIdentifier(A11yIdentifiers.sessionVerificationScreen.declineChallenge)
             }
             
-        case .acceptingChallenge:
+        case .acceptingVerificationRequest, .acceptingChallenge, .decliningChallenge, .requestingVerification:
-            VStack(spacing: 32) {
+            Button(L10n.screenIdentityWaitingOnOtherDevice) { }
-                Button { context.send(viewAction: .accept) } label: {
-                    HStack(spacing: 16) {
-                        ProgressView()
-                            .tint(.compound.textOnSolidPrimary)
-                        Text(L10n.screenSessionVerificationTheyMatch)
-                    }
-                }
                 .buttonStyle(.compound(.primary))
-                .accessibilityIdentifier(A11yIdentifiers.sessionVerificationScreen.acceptChallenge)
                 .disabled(true)
 
-                Button(L10n.screenSessionVerificationTheyDontMatch) {
-                    context.send(viewAction: .decline)
-                }
-                .font(.compound.bodyLGSemibold)
-                .accessibilityIdentifier(A11yIdentifiers.sessionVerificationScreen.declineChallenge)
-                .disabled(true)
-            }
-
         default:
             EmptyView()
         }
@@ -196,27 +176,50 @@ struct SessionVerificationScreen: View {
     }
 }
 
-// MARK: - Previews
-
 struct SessionVerification_Previews: PreviewProvider, TestablePreview {
     static var previews: some View {
         sessionVerificationScreen(state: .initial)
-            .previewDisplayName("Initial")
+            .previewDisplayName("Initial - Initiator")
+        
+        let details = SessionVerificationRequestDetails(senderID: "@bob:matrix.org",
+                                                        flowID: "123",
+                                                        deviceID: "CODEMISTAKE",
+                                                        displayName: "Bob's Element X iOS",
+                                                        firstSeenDate: .init(timeIntervalSince1970: 0))
+        sessionVerificationScreen(state: .initial, flow: .responder(details: details))
+            .previewDisplayName("Initial - Responder")
+        
+        sessionVerificationScreen(state: .acceptingVerificationRequest)
+            .previewDisplayName("Accepting Verification Request")
+        
         sessionVerificationScreen(state: .requestingVerification)
             .previewDisplayName("Requesting Verification")
         sessionVerificationScreen(state: .verificationRequestAccepted)
             .previewDisplayName("Request Accepted")
-        sessionVerificationScreen(state: .cancelled)
+        
-            .previewDisplayName("Cancelled")
+        sessionVerificationScreen(state: .startingSasVerification)
+            .previewDisplayName("Starting SAS Verification")
+        sessionVerificationScreen(state: .sasVerificationStarted)
+            .previewDisplayName("SAS Verification started")
         
         sessionVerificationScreen(state: .showingChallenge(emojis: SessionVerificationControllerProxyMock.emojis))
             .previewDisplayName("Showing Challenge")
+        sessionVerificationScreen(state: .acceptingChallenge(emojis: SessionVerificationControllerProxyMock.emojis))
+            .previewDisplayName("Accepting Challenge")
+        sessionVerificationScreen(state: .decliningChallenge(emojis: SessionVerificationControllerProxyMock.emojis))
+            .previewDisplayName("Declining Challenge")
+        
         sessionVerificationScreen(state: .verified)
             .previewDisplayName("Verified")
+        
+        sessionVerificationScreen(state: .cancelled)
+            .previewDisplayName("Cancelled")
     }
     
-    static func sessionVerificationScreen(state: SessionVerificationScreenStateMachine.State) -> some View {
+    static func sessionVerificationScreen(state: SessionVerificationScreenStateMachine.State,
+                                          flow: SessionVerificationScreenFlow = .initiator) -> some View {
         let viewModel = SessionVerificationScreenViewModel(sessionVerificationControllerProxy: SessionVerificationControllerProxyMock.configureMock(),
+                                                           flow: flow,
                                                            verificationState: state)
         
         return SessionVerificationScreen(context: viewModel.context)

ElementX/Sources/Screens/Timeline/TimelineInteractionHandler.swift

@@ -91,6 +91,7 @@ class TimelineInteractionHandler {
         }
     }
 
+    // swiftlint:disable:next cyclomatic_complexity
     func handleTimelineItemMenuAction(_ action: TimelineItemMenuAction, itemID: TimelineItemIdentifier) {
         guard let timelineItem = timelineController.timelineItems.firstUsingStableID(itemID),
               let eventTimelineItem = timelineItem as? EventBasedTimelineItemProtocol else {

ElementX/Sources/Services/Client/ClientProxy.swift

@@ -50,6 +50,8 @@ class ClientProxy: ClientProxyProtocol {
 
     let secureBackupController: SecureBackupControllerProtocol
     
+    private(set) var sessionVerificationController: SessionVerificationControllerProxyProtocol?
+    
     private static var roomCreationPowerLevelOverrides: PowerLevels {
         .init(usersDefault: nil,
               eventsDefault: nil,
@@ -157,7 +159,16 @@ class ClientProxy: ClientProxyProtocol {
         updateVerificationState(client.encryption().verificationState())
         
         verificationStateListenerTaskHandle = client.encryption().verificationStateListener(listener: VerificationStateListenerProxy { [weak self] verificationState in
-            self?.updateVerificationState(verificationState)
+            guard let self else { return }
+            
+            updateVerificationState(verificationState)
+            
+            // The session verification controller requires the user's identity which
+            // isn't available before a keys query response. Use the verification
+            // state updates as an aproximation for when that happens.
+            Task {
+                await self.buildSessionVerificationControllerProxyIfPossible(verificationState: verificationState)
+            }
         })
         
         sendQueueListenerTaskHandle = client.subscribeToSendQueueStatus(listener: SendQueueRoomErrorListenerProxy { [weak self] roomID, error in
@@ -484,7 +495,8 @@ class ClientProxy: ClientProxyProtocol {
     func roomPreviewForIdentifier(_ identifier: String, via: [String]) async -> Result<RoomPreviewDetails, ClientProxyError> {
         do {
             let roomPreview = try await client.getRoomPreviewFromRoomId(roomId: identifier, viaServers: via)
-            return .success(.init(roomPreview))
+            let roomPreviewInfo = try roomPreview.info()
+            return .success(.init(roomPreviewInfo))
         } catch let error as ClientError where error.code == .forbidden {
             return .failure(.roomPreviewIsPrivate)
         } catch {
@@ -561,16 +573,6 @@ class ClientProxy: ClientProxyProtocol {
         }
     }
 
-    func sessionVerificationControllerProxy() async -> Result<SessionVerificationControllerProxyProtocol, ClientProxyError> {
-        do {
-            let sessionVerificationController = try await client.getSessionVerificationController()
-            return .success(SessionVerificationControllerProxy(sessionVerificationController: sessionVerificationController))
-        } catch {
-            MXLog.error("Failed retrieving session verification controller proxy with error: \(error)")
-            return .failure(.sdkError(error))
-        }
-    }
-
     func logout() async -> URL? {
         do {
             return try await client.logout().flatMap(URL.init(string:))
@@ -729,6 +731,19 @@ class ClientProxy: ClientProxyProtocol {
         verificationStateSubject.send(verificationState)
     }
     
+    private func buildSessionVerificationControllerProxyIfPossible(verificationState: VerificationState) async {
+        guard sessionVerificationController == nil, verificationState != .unknown else {
+            return
+        }
+        
+        do {
+            let sessionVerificationController = try await client.getSessionVerificationController()
+            self.sessionVerificationController = SessionVerificationControllerProxy(sessionVerificationController: sessionVerificationController)
+        } catch {
+            MXLog.error("Failed retrieving session verification controller proxy with error: \(error)")
+        }
+    }
+
     private func loadUserAvatarURLFromCache() {
         loadCachedAvatarURLTask = Task {
             let urlString = await Task.dispatch(on: clientQueue) {
@@ -1079,17 +1094,17 @@ private class SendQueueRoomErrorListenerProxy: SendQueueRoomErrorListener {
 }
 
 private extension RoomPreviewDetails {
-    init(_ roomPreview: RoomPreview) {
+    init(_ roomPreviewInfo: RoomPreviewInfo) {
-        self = RoomPreviewDetails(roomID: roomPreview.roomId,
+        self = RoomPreviewDetails(roomID: roomPreviewInfo.roomId,
-                                  name: roomPreview.name,
+                                  name: roomPreviewInfo.name,
-                                  canonicalAlias: roomPreview.canonicalAlias,
+                                  canonicalAlias: roomPreviewInfo.canonicalAlias,
-                                  topic: roomPreview.topic,
+                                  topic: roomPreviewInfo.topic,
-                                  avatarURL: roomPreview.avatarUrl.flatMap(URL.init(string:)),
+                                  avatarURL: roomPreviewInfo.avatarUrl.flatMap(URL.init(string:)),
-                                  memberCount: UInt(roomPreview.numJoinedMembers),
+                                  memberCount: UInt(roomPreviewInfo.numJoinedMembers),
-                                  isHistoryWorldReadable: roomPreview.isHistoryWorldReadable,
+                                  isHistoryWorldReadable: roomPreviewInfo.isHistoryWorldReadable,
-                                  isJoined: roomPreview.isJoined,
+                                  isJoined: roomPreviewInfo.membership == .joined,
-                                  isInvited: roomPreview.isInvited,
+                                  isInvited: roomPreviewInfo.membership == .invited,
-                                  isPublic: roomPreview.isPublic,
+                                  isPublic: roomPreviewInfo.joinRule == .public,
-                                  canKnock: roomPreview.canKnock)
+                                  canKnock: roomPreviewInfo.joinRule == .knock)
     }
 }

ElementX/Sources/Services/Client/ClientProxyProtocol.swift

@@ -115,6 +115,8 @@ protocol ClientProxyProtocol: AnyObject, MediaLoaderProtocol {
     
     var secureBackupController: SecureBackupControllerProtocol { get }
     
+    var sessionVerificationController: SessionVerificationControllerProxyProtocol? { get }
+    
     func isOnlyDeviceLeft() async -> Result<Bool, ClientProxyError>
     
     func startSync()
@@ -156,8 +158,6 @@ protocol ClientProxyProtocol: AnyObject, MediaLoaderProtocol {
     
     func removeUserAvatar() async -> Result<Void, ClientProxyError>
 
-    func sessionVerificationControllerProxy() async -> Result<SessionVerificationControllerProxyProtocol, ClientProxyError>
-
     func deactivateAccount(password: String?, eraseData: Bool) async -> Result<Void, ClientProxyError>
     
     func logout() async -> URL?

ElementX/Sources/Services/ElementCall/ElementCallService.swift

@@ -246,10 +246,8 @@ class ElementCallService: NSObject, ElementCallServiceProtocol, PKPushRegistryDe
     func provider(_ provider: CXProvider, perform action: CXEndCallAction) {
         #if targetEnvironment(simulator)
         // This gets called for no reason on simulators, where CallKit
-        // isn't even supported. Ignore
+        // isn't even supported, ignore it.
-        return
+        #else
-        #endif
-        
         if let ongoingCallID {
             actionsSubject.send(.endCall(roomID: ongoingCallID.roomID))
         }
@@ -257,6 +255,7 @@ class ElementCallService: NSObject, ElementCallServiceProtocol, PKPushRegistryDe
         tearDownCallSession(sendEndCallAction: false)
         
         action.fulfill()
+        #endif
     }
     
     // MARK: - Private

ElementX/Sources/Services/SessionVerification/SessionVerificationControllerProxy.swift

@@ -18,6 +18,10 @@ private class WeakSessionVerificationControllerProxy: SessionVerificationControl
     
     // MARK: - SessionVerificationControllerDelegate
     
+    func didReceiveVerificationRequest(details: MatrixRustSDK.SessionVerificationRequestDetails) {
+        proxy?.didReceiveVerificationRequest(details: details)
+    }
+    
     func didReceiveVerificationData(data: MatrixRustSDK.SessionVerificationData) {
         switch data {
         // We can handle only emojis for now
@@ -54,86 +58,142 @@ class SessionVerificationControllerProxy: SessionVerificationControllerProxyProt
     
     init(sessionVerificationController: SessionVerificationController) {
         self.sessionVerificationController = sessionVerificationController
+        sessionVerificationController.setDelegate(delegate: WeakSessionVerificationControllerProxy(proxy: self))
     }
     
     deinit {
         sessionVerificationController.setDelegate(delegate: nil)
     }
     
-    let callbacks = PassthroughSubject<SessionVerificationControllerProxyCallback, Never>()
+    let actions = PassthroughSubject<SessionVerificationControllerProxyAction, Never>()
+    
+    func acknowledgeVerificationRequest(details: SessionVerificationRequestDetails) async -> Result<Void, SessionVerificationControllerProxyError> {
+        MXLog.info("Acknowledging verification request")
+        
+        do {
+            try await sessionVerificationController.acknowledgeVerificationRequest(senderId: details.senderID, flowId: details.flowID)
+            return .success(())
+        } catch {
+            MXLog.error("Failed requesting session verification with error: \(error)")
+            return .failure(.failedAcknowledgingVerificationRequest)
+        }
+    }
+    
+    func acceptVerificationRequest() async -> Result<Void, SessionVerificationControllerProxyError> {
+        MXLog.info("Accepting verification request")
+        
+        do {
+            try await sessionVerificationController.acceptVerificationRequest()
+            return .success(())
+        } catch {
+            MXLog.error("Failed requesting session verification with error: \(error)")
+            return .failure(.failedAcceptingVerificationRequest)
+        }
+    }
         
     func requestVerification() async -> Result<Void, SessionVerificationControllerProxyError> {
-        sessionVerificationController.setDelegate(delegate: WeakSessionVerificationControllerProxy(proxy: self))
+        MXLog.info("Requesting session verification")
         
         do {
             try await sessionVerificationController.requestVerification()
             return .success(())
         } catch {
+            MXLog.error("Failed requesting session verification with error: \(error)")
             return .failure(.failedRequestingVerification)
         }
     }
     
     func startSasVerification() async -> Result<Void, SessionVerificationControllerProxyError> {
+        MXLog.info("Starting SAS verification")
+        
         do {
             try await sessionVerificationController.startSasVerification()
             return .success(())
         } catch {
+            MXLog.error("Failed starting SAS verification with error: \(error)")
             return .failure(.failedStartingSasVerification)
         }
     }
     
     func approveVerification() async -> Result<Void, SessionVerificationControllerProxyError> {
+        MXLog.info("Approving verification")
+        
         do {
             try await sessionVerificationController.approveVerification()
             return .success(())
         } catch {
+            MXLog.error("Failed approving verification with error: \(error)")
             return .failure(.failedApprovingVerification)
         }
     }
     
     func declineVerification() async -> Result<Void, SessionVerificationControllerProxyError> {
+        MXLog.info("Declining verification")
+        
         do {
             try await sessionVerificationController.declineVerification()
             return .success(())
         } catch {
+            MXLog.error("Failed declining verification with error: \(error)")
             return .failure(.failedDecliningVerification)
         }
     }
     
     func cancelVerification() async -> Result<Void, SessionVerificationControllerProxyError> {
+        MXLog.info("Cancelling verification")
+        
         do {
             try await sessionVerificationController.cancelVerification()
             return .success(())
         } catch {
+            MXLog.error("Failed cancelling verification with error: \(error)")
             return .failure(.failedCancellingVerification)
         }
     }
     
     // MARK: - Private
     
+    fileprivate func didReceiveVerificationRequest(details: MatrixRustSDK.SessionVerificationRequestDetails) {
+        MXLog.info("Received verification request \(details)")
+        
+        let details = SessionVerificationRequestDetails(senderID: details.senderId,
+                                                        flowID: details.flowId,
+                                                        deviceID: details.deviceId,
+                                                        displayName: details.displayName,
+                                                        firstSeenDate: Date(timeIntervalSince1970: TimeInterval(details.firstSeenTimestamp / 1000)))
+        
+        actions.send(.receivedVerificationRequest(details: details))
+    }
+    
     fileprivate func didAcceptVerificationRequest() {
-        callbacks.send(.acceptedVerificationRequest)
+        MXLog.info("Accepted verification request")
+        
+        actions.send(.acceptedVerificationRequest)
     }
     
     fileprivate func didStartSasVerification() {
-        callbacks.send(.startedSasVerification)
+        MXLog.info("Started SAS verification")
+        
+        actions.send(.startedSasVerification)
     }
     
     fileprivate func didReceiveData(_ data: [MatrixRustSDK.SessionVerificationEmoji]) {
-        callbacks.send(.receivedVerificationData(data.map { emoji in
+        MXLog.info("Received verification data")
+        
+        actions.send(.receivedVerificationData(data.map { emoji in
             SessionVerificationEmoji(symbol: emoji.symbol(), description: emoji.description())
         }))
     }
     
     fileprivate func didFail() {
-        callbacks.send(.failed)
+        actions.send(.failed)
     }
     
     fileprivate func didFinish() {
-        callbacks.send(.finished)
+        actions.send(.finished)
     }
     
     fileprivate func didCancel() {
-        callbacks.send(.cancelled)
+        actions.send(.cancelled)
     }
 }

ElementX/Sources/Services/SessionVerification/SessionVerificationControllerProxyProtocol.swift

@@ -7,8 +7,11 @@
 
 import Combine
 import Foundation
+import MatrixRustSDK
 
 enum SessionVerificationControllerProxyError: Error {
+    case failedAcknowledgingVerificationRequest
+    case failedAcceptingVerificationRequest
     case failedRequestingVerification
     case failedStartingSasVerification
     case failedApprovingVerification
@@ -16,7 +19,8 @@ enum SessionVerificationControllerProxyError: Error {
     case failedCancellingVerification
 }
 
-enum SessionVerificationControllerProxyCallback {
+enum SessionVerificationControllerProxyAction {
+    case receivedVerificationRequest(details: SessionVerificationRequestDetails)
     case acceptedVerificationRequest
     case startedSasVerification
     case receivedVerificationData([SessionVerificationEmoji])
@@ -25,6 +29,14 @@ enum SessionVerificationControllerProxyCallback {
     case failed
 }
 
+struct SessionVerificationRequestDetails {
+    let senderID: String
+    let flowID: String
+    let deviceID: String
+    let displayName: String?
+    let firstSeenDate: Date
+}
+
 struct SessionVerificationEmoji: Hashable {
     let symbol: String
     let description: String
@@ -36,7 +48,11 @@ struct SessionVerificationEmoji: Hashable {
 
 // sourcery: AutoMockable
 protocol SessionVerificationControllerProxyProtocol {
-    var callbacks: PassthroughSubject<SessionVerificationControllerProxyCallback, Never> { get }
+    var actions: PassthroughSubject<SessionVerificationControllerProxyAction, Never> { get }
+    
+    func acknowledgeVerificationRequest(details: SessionVerificationRequestDetails) async -> Result<Void, SessionVerificationControllerProxyError>
+    
+    func acceptVerificationRequest() async -> Result<Void, SessionVerificationControllerProxyError>
         
     func requestVerification() async -> Result<Void, SessionVerificationControllerProxyError>
     

ElementX/Sources/UITests/UITestsAppCoordinator.swift

@@ -519,7 +519,8 @@ class MockScreen: Identifiable {
             return navigationStackCoordinator
         case .sessionVerification:
             var sessionVerificationControllerProxy = SessionVerificationControllerProxyMock.configureMock(requestDelay: .seconds(5))
-            let parameters = SessionVerificationScreenCoordinatorParameters(sessionVerificationControllerProxy: sessionVerificationControllerProxy)
+            let parameters = SessionVerificationScreenCoordinatorParameters(sessionVerificationControllerProxy: sessionVerificationControllerProxy,
+                                                                            flow: .initiator)
             return SessionVerificationScreenCoordinator(parameters: parameters)
         case .userSessionScreen, .userSessionScreenReply:
             let appSettings: AppSettings = ServiceLocator.shared.settings

PreviewTests/Sources/GeneratedPreviewTests.swift

@@ -755,6 +755,12 @@ extension PreviewTests {
         }
     }
 
+    func test_sessionVerificationRequestDetailsView() {
+        for preview in SessionVerificationRequestDetailsView_Previews._allPreviews {
+            assertSnapshots(matching: preview)
+        }
+    }
+
     func test_sessionVerification() {
         for preview in SessionVerification_Previews._allPreviews {
             assertSnapshots(matching: preview)

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