core, iOS: support for self-destruct password (#2412)

* core, iOS: support for self-destruct password

* disable test logging

* core: fix tests, iOS: remove notifications on removal

* change alerts

apps/ios/Shared/ContentView.swift

@@ -192,7 +192,7 @@ struct ContentView: View {
     private func justAuthenticate() {
         userAuthorized = false
         let laMode = privacyLocalAuthModeDefault.get()
-        authenticate(reason: NSLocalizedString("Unlock app", comment: "authentication reason")) { laResult in
+        authenticate(reason: NSLocalizedString("Unlock app", comment: "authentication reason"), selfDestruct: true) { laResult in
             logger.debug("authenticate callback: \(String(describing: laResult))")
             switch (laResult) {
             case .success:

apps/ios/Shared/Model/NtfManager.swift

@@ -247,8 +247,12 @@ class NtfManager: NSObject, UNUserNotificationCenterDelegate, ObservableObject {
         }
     }
 
-    func removeNotifications(_ ids : [String]){
+    func removeAllNotifications() async {
-        UNUserNotificationCenter.current().removeDeliveredNotifications(withIdentifiers: ids)
+        let nc = UNUserNotificationCenter.current()
-        UNUserNotificationCenter.current().removePendingNotificationRequests(withIdentifiers: ids)
+        let settings = await nc.notificationSettings()
+        if settings.authorizationStatus == .authorized {
+            nc.removeAllPendingNotificationRequests()
+            nc.removeAllDeliveredNotifications()
+        }
     }
 }

apps/ios/Shared/Model/SimpleXAPI.swift

@@ -125,7 +125,7 @@ func apiGetActiveUser() throws -> User? {
     }
 }
 
-func apiCreateActiveUser(_ p: Profile) throws -> User {
+func apiCreateActiveUser(_ p: Profile?) throws -> User {
     let r = chatSendCmdSync(.createActiveUser(profile: p))
     if case let .activeUser(user) = r { return user }
     throw r

apps/ios/Shared/Views/Database/DatabaseView.swift

@@ -317,10 +317,7 @@ struct DatabaseView: View {
     private func stopChat() {
         Task {
             do {
-                try await apiStopChat()
+                try await stopChatAsync()
-                ChatReceiver.shared.stop()
-                await MainActor.run { m.chatRunning = false }
-                appStateGroupDefault.set(.stopped)
             } catch let error {
                 await MainActor.run {
                     runChat = true
@@ -374,9 +371,7 @@ struct DatabaseView: View {
         progressIndicator = true
         Task {
             do {
-                try await apiDeleteStorage()
+                try await deleteChatAsync()
-                _ = kcDatabasePassword.remove()
-                storeDBPassphraseGroupDefault.set(true)
                 await operationEnded(.chatDeleted)
                 appFilesCountAndSize = directoryFileCountAndSize(getAppFilesDirectory())
             } catch let error {
@@ -468,6 +463,19 @@ struct DatabaseView: View {
     }
 }
 
+func stopChatAsync() async throws {
+    try await apiStopChat()
+    ChatReceiver.shared.stop()
+    await MainActor.run { ChatModel.shared.chatRunning = false }
+    appStateGroupDefault.set(.stopped)
+}
+
+func deleteChatAsync() async throws {
+    try await apiDeleteStorage()
+    _ = kcDatabasePassword.remove()
+    storeDBPassphraseGroupDefault.set(true)
+}
+
 struct DatabaseView_Previews: PreviewProvider {
     static var previews: some View {
         DatabaseView(showSettings: Binding.constant(false), chatItemTTL: .none)

apps/ios/Shared/Views/Helpers/LocalAuthenticationUtils.swift

@@ -30,19 +30,26 @@ struct LocalAuthRequest {
     var title: LocalizedStringKey? // if title is null, reason is shown
     var reason: String
     var password: String
+    var selfDestruct: Bool
     var completed: (LAResult) -> Void
 
-    static var sample = LocalAuthRequest(title: "Enter Passcode", reason: "Authenticate", password: "", completed: { _ in })
+    static var sample = LocalAuthRequest(title: "Enter Passcode", reason: "Authenticate", password: "", selfDestruct: false, completed: { _ in })
 }
 
-func authenticate(title: LocalizedStringKey? = nil, reason: String, completed: @escaping (LAResult) -> Void) {
+func authenticate(title: LocalizedStringKey? = nil, reason: String, selfDestruct: Bool = false, completed: @escaping (LAResult) -> Void) {
     logger.debug("authenticate")
     switch privacyLocalAuthModeDefault.get() {
     case .system: systemAuthenticate(reason, completed)
     case .passcode:
         if let password = kcAppPassword.get() {
             DispatchQueue.main.async {
-                ChatModel.shared.laRequest = LocalAuthRequest(title: title, reason: reason, password: password, completed: completed)
+                ChatModel.shared.laRequest = LocalAuthRequest(
+                    title: title,
+                    reason: reason,
+                    password: password,
+                    selfDestruct: selfDestruct && UserDefaults.standard.bool(forKey: DEFAULT_LA_SELF_DESTRUCT),
+                    completed: completed
+                )
             }
         } else {
             completed(.unavailable(authError: NSLocalizedString("No app password", comment: "Authentication unavailable")))

apps/ios/Shared/Views/LocalAuth/LocalAuthView.swift

@@ -7,6 +7,7 @@
 //
 
 import SwiftUI
+import SimpleXChat
 
 struct LocalAuthView: View {
     @EnvironmentObject var m: ChatModel
@@ -15,6 +16,13 @@ struct LocalAuthView: View {
 
     var body: some View {
         PasscodeView(passcode: $password, title: authRequest.title ?? "Enter Passcode", reason: authRequest.reason, submitLabel: "Submit") {
+            if let sdPassword = kcSelfDestructPassword.get(), authRequest.selfDestruct && password == sdPassword {
+                deleteStorageAndRestart(sdPassword) { r in
+                    m.laRequest = nil
+                    authRequest.completed(r)
+                }
+                return
+            }
             let r: LAResult = password == authRequest.password
                             ? .success
                             : .failed(authError: NSLocalizedString("Incorrect passcode", comment: "PIN entry"))
@@ -25,6 +33,41 @@ struct LocalAuthView: View {
             authRequest.completed(.failed(authError: NSLocalizedString("Authentication cancelled", comment: "PIN entry")))
         }
     }
+
+    private func deleteStorageAndRestart(_ password: String, completed: @escaping (LAResult) -> Void) {
+        Task {
+            do {
+                try await stopChatAsync()
+                try await deleteChatAsync()
+                _ = kcAppPassword.set(password)
+                _ = kcSelfDestructPassword.remove()
+                await NtfManager.shared.removeAllNotifications()
+                let displayName = UserDefaults.standard.string(forKey: DEFAULT_LA_SELF_DESTRUCT_DISPLAY_NAME)
+                UserDefaults.standard.removeObject(forKey: DEFAULT_LA_SELF_DESTRUCT)
+                UserDefaults.standard.removeObject(forKey: DEFAULT_LA_SELF_DESTRUCT_DISPLAY_NAME)
+                await MainActor.run {
+                    m.chatDbChanged = true
+                    m.chatInitialized = false
+                }
+                resetChatCtrl()
+                try initializeChat(start: true)
+                m.chatDbChanged = false
+                appStateGroupDefault.set(.active)
+                if m.currentUser != nil { return }
+                var profile: Profile? = nil
+                if let displayName = displayName, displayName != "" {
+                    profile = Profile(displayName: displayName, fullName: "")
+                }
+                m.currentUser = try apiCreateActiveUser(profile)
+                onboardingStageDefault.set(.onboardingComplete)
+                m.onboardingStage = .onboardingComplete
+                try startChat()
+                completed(.success)
+            } catch {
+                completed(.failed(authError: NSLocalizedString("Incorrect passcode", comment: "PIN entry")))
+            }
+        }
+    }
 }
 
 struct LocalAuthView_Previews: PreviewProvider {

apps/ios/Shared/Views/LocalAuth/SetAppPasscodeView.swift

@@ -10,6 +10,9 @@ import SwiftUI
 import SimpleXChat
 
 struct SetAppPasscodeView: View {
+    var passcodeKeychain: KeyChainItem = kcAppPassword
+    var title: LocalizedStringKey = "New Passcode"
+    var reason: String?
     var submit: () -> Void
     var cancel: () -> Void
     @Environment(\.dismiss) var dismiss: DismissAction
@@ -27,7 +30,7 @@ struct SetAppPasscodeView: View {
                     submitEnabled: { pwd in pwd == enteredPassword }
                 ) {
                     if passcode == enteredPassword {
-                        if kcAppPassword.set(passcode) {
+                        if passcodeKeychain.set(passcode) {
                             enteredPassword = ""
                             passcode = ""
                             dismiss()
@@ -38,7 +41,7 @@ struct SetAppPasscodeView: View {
                     }
                 }
             } else {
-                setPasswordView(title: "New Passcode", submitLabel: "Save") {
+                setPasswordView(title: title, submitLabel: "Save") {
                     enteredPassword = passcode
                     passcode = ""
                     confirming = true
@@ -51,7 +54,7 @@ struct SetAppPasscodeView: View {
     }
 
     private func setPasswordView(title: LocalizedStringKey, submitLabel: LocalizedStringKey, submitEnabled: (((String) -> Bool))? = nil, submit: @escaping () -> Void) -> some View {
-        PasscodeView(passcode: $passcode, title: title, submitLabel: submitLabel, submitEnabled: submitEnabled, submit: submit) {
+        PasscodeView(passcode: $passcode, title: title, reason: reason, submitLabel: submitLabel, submitEnabled: submitEnabled, submit: submit) {
             dismiss()
             cancel()
         }

apps/ios/Shared/Views/Onboarding/CreateProfile.swift

@@ -129,6 +129,8 @@ struct CreateProfile: View {
                     m.onboardingStage = .step3_CreateSimpleXAddress
                 }
             } else {
+                onboardingStageDefault.set(.onboardingComplete)
+                m.onboardingStage = .onboardingComplete
                 dismiss()
                 m.users = try listUsers()
                 try getUserChatData()

apps/ios/Shared/Views/UserSettings/IncognitoHelp.swift

@@ -13,6 +13,7 @@ struct IncognitoHelp: View {
         VStack(alignment: .leading) {
             Text("Incognito mode")
                 .font(.largeTitle)
+                .bold()
                 .padding(.vertical)
             ScrollView {
                 VStack(alignment: .leading) {

apps/ios/Shared/Views/UserSettings/PrivacySettings.swift

@@ -102,9 +102,13 @@ struct SimplexLockView: View {
     @AppStorage(DEFAULT_LA_NOTICE_SHOWN) private var prefLANoticeShown = false
     @State private var laMode: LAMode = privacyLocalAuthModeDefault.get()
     @AppStorage(DEFAULT_LA_LOCK_DELAY) private var laLockDelay = 30
-    @State var performLA: Bool = UserDefaults.standard.bool(forKey: DEFAULT_PERFORM_LA)
+    @State private var performLA: Bool = UserDefaults.standard.bool(forKey: DEFAULT_PERFORM_LA)
+    @State private var selfDestruct: Bool = UserDefaults.standard.bool(forKey: DEFAULT_LA_SELF_DESTRUCT)
+    @State private var currentSelfDestruct: Bool = UserDefaults.standard.bool(forKey: DEFAULT_LA_SELF_DESTRUCT)
+    @AppStorage(DEFAULT_LA_SELF_DESTRUCT_DISPLAY_NAME) private var selfDestructDisplayName = ""
     @State private var performLAToggleReset = false
     @State private var performLAModeReset = false
+    @State private var performLASelfDestructReset = false
     @State private var showPasswordAction: PasswordAction? = nil
     @State private var showChangePassword = false
     @State var laAlert: LASettingViewAlert? = nil
@@ -116,6 +120,8 @@ struct SimplexLockView: View {
         case laUnavailableTurningOffAlert
         case laPasscodeSetAlert
         case laPasscodeChangedAlert
+        case laSeldDestructPasscodeSetAlert
+        case laSeldDestructPasscodeChangedAlert
         case laPasscodeNotChangedAlert
 
         var id: Self { self }
@@ -124,7 +130,10 @@ struct SimplexLockView: View {
     enum PasswordAction: Identifiable {
         case enableAuth
         case toggleMode
-        case changePassword
+        case changePasscode
+        case enableSelfDestruct
+        case changeSelfDestructPasscode
+        case selfDestructInfo
 
         var id: Self { self }
     }
@@ -159,12 +168,34 @@ struct SimplexLockView: View {
                             }
                         }
                         if showChangePassword && laMode == .passcode {
-                            Button("Change Passcode") {
+                            Button("Change passcode") {
                                 changeLAPassword()
                             }
                         }
                     }
                 }
+
+                if performLA && laMode == .passcode {
+                    Section("Self-destruct passcode") {
+                        Toggle(isOn: $selfDestruct) {
+                            HStack(spacing: 6) {
+                                Text("Enable self-destruct")
+                                Image(systemName: "info.circle")
+                                    .foregroundColor(.accentColor)
+                                    .font(.system(size: 14))
+                            }
+                            .onTapGesture {
+                                showPasswordAction = .selfDestructInfo
+                            }
+                        }
+                        if selfDestruct {
+                            TextField("New display name", text: $selfDestructDisplayName)
+                            Button("Change self-destruct passcode") {
+                                changeSelfDestructPassword()
+                            }
+                        }
+                    }
+                }
             }
         }
         .onChange(of: performLA) { performLAToggle in
@@ -192,6 +223,13 @@ struct SimplexLockView: View {
                 updateLAMode()
             }
         }
+        .onChange(of: selfDestruct) { _ in
+            if performLASelfDestructReset {
+                performLASelfDestructReset = false
+            } else if prefPerformLA {
+                toggleSelfDestruct()
+            }
+        }
         .alert(item: $laAlert) { alertItem in
             switch alertItem {
             case .laTurnedOnAlert: return laTurnedOnAlert()
@@ -200,6 +238,8 @@ struct SimplexLockView: View {
             case .laUnavailableTurningOffAlert: return laUnavailableTurningOffAlert()
             case .laPasscodeSetAlert: return passcodeAlert("Passcode set!")
             case .laPasscodeChangedAlert: return passcodeAlert("Passcode changed!")
+            case .laSeldDestructPasscodeSetAlert: return selfDestructPasscodeAlert("Self-destruct passcode enabled!")
+            case .laSeldDestructPasscodeChangedAlert: return selfDestructPasscodeAlert("Self-destruct passcode changed!")
             case .laPasscodeNotChangedAlert: return mkAlert(title: "Passcode not changed!")
             }
         }
@@ -223,12 +263,27 @@ struct SimplexLockView: View {
                 } cancel: {
                     revertLAMode()
                 }
-            case .changePassword:
+            case .changePasscode:
                 SetAppPasscodeView {
                     showLAAlert(.laPasscodeChangedAlert)
                 } cancel: {
                     showLAAlert(.laPasscodeNotChangedAlert)
                 }
+            case .enableSelfDestruct:
+                SetAppPasscodeView(passcodeKeychain: kcSelfDestructPassword, title: "Set passcode", reason: NSLocalizedString("Enable self-destruct passcode", comment: "set passcode view")) {
+                    updateSelfDestruct()
+                    showLAAlert(.laSeldDestructPasscodeSetAlert)
+                } cancel: {
+                    revertSelfDestruct()
+                }
+            case .changeSelfDestructPasscode:
+                SetAppPasscodeView(passcodeKeychain: kcSelfDestructPassword, reason: NSLocalizedString("Change self-destruct passcode", comment: "set passcode view")) {
+                    showLAAlert(.laSeldDestructPasscodeChangedAlert)
+                } cancel: {
+                    showLAAlert(.laPasscodeNotChangedAlert)
+                }
+            case .selfDestructInfo:
+                selfDestructInfoView()
             }
         }
         .onAppear {
@@ -239,6 +294,30 @@ struct SimplexLockView: View {
         }
     }
 
+    private func selfDestructInfoView() -> some View {
+        VStack(alignment: .leading) {
+            Text("Self-desctruct")
+                .font(.largeTitle)
+                .bold()
+                .padding(.vertical)
+            ScrollView {
+                VStack(alignment: .leading) {
+                    Group {
+                        Text("If you enter your self-desctruct passcode while opening the app:")
+                        VStack(spacing: 8) {
+                            textListItem("1.", "All app data is deleted.")
+                            textListItem("2.", "App passcode is replaced with self-desctruct passcode.")
+                            textListItem("3.", "An empty chat profile with the provided name is created, and the app opens as usual.")
+                        }
+                    }
+                    .padding(.bottom)
+                }
+            }
+        }
+        .frame(maxWidth: .infinity)
+        .padding()
+    }
+
     private func  showLAAlert(_ a: LASettingViewAlert) {
         DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
             laAlert = a
@@ -276,11 +355,39 @@ struct SimplexLockView: View {
         }
     }
 
+    private func toggleSelfDestruct() {
+        authenticate(reason: NSLocalizedString("Change self-destruct mode", comment: "authentication reason")) { laResult in
+            switch laResult {
+            case .failed:
+                revertSelfDestruct()
+                laAlert = .laFailedAlert
+            case .success:
+                if selfDestruct {
+                    showPasswordAction = .enableSelfDestruct
+                } else {
+                    resetSelfDestruct()
+                }
+            case .unavailable:
+                disableUnavailableLA()
+            }
+        }
+    }
+
     private func changeLAPassword() {
         authenticate(title: "Current Passcode", reason: NSLocalizedString("Change passcode", comment: "authentication reason")) { laResult in
             switch laResult {
             case .failed: laAlert = .laFailedAlert
-            case .success: showPasswordAction = .changePassword
+            case .success: showPasswordAction = .changePasscode
+            case .unavailable: disableUnavailableLA()
+            }
+        }
+    }
+
+    private func changeSelfDestructPassword() {
+        authenticate(reason: NSLocalizedString("Change self-destruct passcode", comment: "authentication reason")) { laResult in
+            switch laResult {
+            case .failed: laAlert = .laFailedAlert
+            case .success: showPasswordAction = .changeSelfDestructPasscode
             case .unavailable: disableUnavailableLA()
             }
         }
@@ -329,6 +436,7 @@ struct SimplexLockView: View {
         _ = kcAppPassword.remove()
         laLockDelay = 30
         showChangePassword = false
+        resetSelfDestruct()
     }
 
     private func resetLAEnabled(_ onOff: Bool) {
@@ -347,9 +455,29 @@ struct SimplexLockView: View {
         privacyLocalAuthModeDefault.set(laMode)
     }
 
+    private func resetSelfDestruct() {
+        _ = kcSelfDestructPassword.remove()
+        selfDestruct = false
+        updateSelfDestruct()
+    }
+
+    private func revertSelfDestruct() {
+        performLASelfDestructReset = true
+        withAnimation { selfDestruct = currentSelfDestruct }
+    }
+
+    private func updateSelfDestruct() {
+        UserDefaults.standard.set(selfDestruct, forKey: DEFAULT_LA_SELF_DESTRUCT)
+        currentSelfDestruct = selfDestruct
+    }
+
     private func passcodeAlert(_ title: LocalizedStringKey) -> Alert {
         mkAlert(title: title, message: "Please remember or store it securely - there is no way to recover a lost passcode!")
     }
+
+    private func selfDestructPasscodeAlert(_ title: LocalizedStringKey) -> Alert {
+        mkAlert(title: title, message: "If you enter this passcode when opening the app, all app data will be irreversibly removed!")
+    }
 }
 
 struct PrivacySettings_Previews: PreviewProvider {

apps/ios/Shared/Views/UserSettings/SettingsView.swift

@@ -21,6 +21,8 @@ let DEFAULT_LA_NOTICE_SHOWN = "localAuthenticationNoticeShown"
 let DEFAULT_PERFORM_LA = "performLocalAuthentication"
 let DEFAULT_LA_MODE = "localAuthenticationMode"
 let DEFAULT_LA_LOCK_DELAY = "localAuthenticationLockDelay"
+let DEFAULT_LA_SELF_DESTRUCT = "localAuthenticationSelfDestruct"
+let DEFAULT_LA_SELF_DESTRUCT_DISPLAY_NAME = "localAuthenticationSelfDestructDisplayName"
 let DEFAULT_NOTIFICATION_ALERT_SHOWN = "notificationAlertShown"
 let DEFAULT_WEBRTC_POLICY_RELAY = "webrtcPolicyRelay"
 let DEFAULT_WEBRTC_ICE_SERVERS = "webrtcICEServers"
@@ -53,6 +55,7 @@ let appDefaults: [String: Any] = [
     DEFAULT_PERFORM_LA: false,
     DEFAULT_LA_MODE: LAMode.system.rawValue,
     DEFAULT_LA_LOCK_DELAY: 30,
+    DEFAULT_LA_SELF_DESTRUCT: false,
     DEFAULT_NOTIFICATION_ALERT_SHOWN: false,
     DEFAULT_WEBRTC_POLICY_RELAY: true,
     DEFAULT_CALL_KIT_CALLS_IN_RECENTS: false,
@@ -298,9 +301,8 @@ struct SettingsView: View {
                 .frame(maxWidth: 24, maxHeight: 24, alignment: .center)
                 .foregroundColor(chatModel.incognito ? Color.indigo : .secondary)
             Toggle(isOn: $chatModel.incognito) {
-                HStack {
+                HStack(spacing: 6) {
                     Text("Incognito")
-                    Spacer().frame(width: 4)
                     Image(systemName: "info.circle")
                         .foregroundColor(.accentColor)
                         .font(.system(size: 14))

apps/ios/SimpleX Localizations/cs.xcloc/Localized Contents/cs.xliff

@@ -730,8 +730,8 @@ Dostupné ve verzi 5.1</target>
         <target>Změnit</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>Změna hesla</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/de.xcloc/Localized Contents/de.xliff

@@ -730,8 +730,8 @@ Verfügbar ab v5.1</target>
         <target>Ändern</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>Passwort ändern</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/el.xcloc/Localized Contents/el.xliff

@@ -569,8 +569,8 @@ Available in v5.1</source>
         <source>Change</source>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <note>No comment provided by engineer.</note>
       </trans-unit>
       <trans-unit id="Change database passphrase?" xml:space="preserve">

apps/ios/SimpleX Localizations/en.xcloc/Localized Contents/en.xliff

@@ -739,9 +739,9 @@ Available in v5.1</target>
         <target>Change</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
-        <target>Change Passcode</target>
+        <target>Change passcode</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
       <trans-unit id="Change database passphrase?" xml:space="preserve">

apps/ios/SimpleX Localizations/es.xcloc/Localized Contents/es.xliff

@@ -730,8 +730,8 @@ Disponible en v5.1</target>
         <target>Cambiar</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>Cambiar el código de acceso</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/fr.xcloc/Localized Contents/fr.xliff

@@ -730,8 +730,8 @@ Disponible dans la v5.1</target>
         <target>Changer</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>Modifier le code d'accès</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/he.xcloc/Localized Contents/he.xliff

@@ -569,8 +569,8 @@ Available in v5.1</source>
         <source>Change</source>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <note>No comment provided by engineer.</note>
       </trans-unit>
       <trans-unit id="Change database passphrase?" xml:space="preserve">

apps/ios/SimpleX Localizations/it.xcloc/Localized Contents/it.xliff

@@ -730,8 +730,8 @@ Disponibile nella v5.1</target>
         <target>Cambia</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>Cambia codice di accesso</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/nl.xcloc/Localized Contents/nl.xliff

@@ -730,8 +730,8 @@ Beschikbaar in v5.1</target>
         <target>Veranderen</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>Toegangscode wijzigen</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/pl.xcloc/Localized Contents/pl.xliff

@@ -730,8 +730,8 @@ Dostępny w v5.1</target>
         <target>Zmień</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>Zmień kod dostępu</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/pt.xcloc/Localized Contents/pt.xliff

@@ -569,8 +569,8 @@ Available in v5.1</source>
         <source>Change</source>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <note>No comment provided by engineer.</note>
       </trans-unit>
       <trans-unit id="Change database passphrase?" xml:space="preserve">

apps/ios/SimpleX Localizations/ru.xcloc/Localized Contents/ru.xliff

@@ -730,8 +730,8 @@ Available in v5.1</source>
         <target>Поменять</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>Изменить код доступа</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/zh-Hans.xcloc/Localized Contents/zh-Hans.xliff

@@ -730,8 +730,8 @@ Available in v5.1</source>
         <target>更改</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve">
+      <trans-unit id="Change passcode" xml:space="preserve">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target>更改密码</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleX Localizations/zh-Hant.xcloc/Localized Contents/zh-Hant.xliff

@@ -4207,8 +4207,8 @@ SimpleX servers cannot see your profile.</source>
         <target state="translated">已取消認證</target>
         <note>PIN entry</note>
       </trans-unit>
-      <trans-unit id="Change Passcode" xml:space="preserve" approved="no">
+      <trans-unit id="Change passcode" xml:space="preserve" approved="no">
-        <source>Change Passcode</source>
+        <source>Change passcode</source>
         <target state="translated">修改密碼</target>
         <note>No comment provided by engineer.</note>
       </trans-unit>

apps/ios/SimpleXChat/APITypes.swift

@@ -14,7 +14,7 @@ let jsonEncoder = getJSONEncoder()
 
 public enum ChatCommand {
     case showActiveUser
-    case createActiveUser(profile: Profile)
+    case createActiveUser(profile: Profile?)
     case listUsers
     case apiSetActiveUser(userId: Int64, viewPwd: String?)
     case apiHideUser(userId: Int64, viewPwd: String)
@@ -110,7 +110,11 @@ public enum ChatCommand {
         get {
             switch self {
             case .showActiveUser: return "/u"
-            case let .createActiveUser(profile): return "/create user \(profile.displayName) \(profile.fullName)"
+            case let .createActiveUser(profile):
+                if let profile = profile {
+                    return "/create user \(profile.displayName) \(profile.fullName)"
+                }
+                return "/create user"
             case .listUsers: return "/users"
             case let .apiSetActiveUser(userId, viewPwd): return "/_user \(userId)\(maybePwd(viewPwd))"
             case let .apiHideUser(userId, viewPwd): return "/_hide user \(userId) \(encodeJSON(viewPwd))"

apps/ios/SimpleXChat/KeyChain.swift

@@ -13,11 +13,14 @@ private let ACCESS_POLICY: CFString = kSecAttrAccessibleAfterFirstUnlockThisDevi
 private let ACCESS_GROUP: String = "5NN7GUYB6T.chat.simplex.app"
 private let DATABASE_PASSWORD_ITEM: String = "databasePassword"
 private let APP_PASSWORD_ITEM: String = "appPassword"
+private let SELF_DESTRUCT_PASSWORD_ITEM: String = "selfDestructPassword"
 
 public let kcDatabasePassword = KeyChainItem(forKey: DATABASE_PASSWORD_ITEM)
 
 public let kcAppPassword = KeyChainItem(forKey: APP_PASSWORD_ITEM)
 
+public let kcSelfDestructPassword = KeyChainItem(forKey: SELF_DESTRUCT_PASSWORD_ITEM)
+
 public struct KeyChainItem {
     var forKey: String
 

apps/ios/de.lproj/Localizable.strings

@@ -477,7 +477,7 @@
 "Change passcode" = "Passwort ändern";
 
 /* No comment provided by engineer. */
-"Change Passcode" = "Passwort ändern";
+"Change passcode" = "Passwort ändern";
 
 /* No comment provided by engineer. */
 "Change receiving address" = "Wechseln der Empfängeradresse";

apps/ios/es.lproj/Localizable.strings

@@ -477,7 +477,7 @@
 "Change passcode" = "Cambiar el código de acceso";
 
 /* No comment provided by engineer. */
-"Change Passcode" = "Cambiar el código de acceso";
+"Change passcode" = "Cambiar el código de acceso";
 
 /* No comment provided by engineer. */
 "Change receiving address" = "Cambiar servidor de recepción";

apps/ios/fr.lproj/Localizable.strings

@@ -477,7 +477,7 @@
 "Change passcode" = "Modifier le code d'accès";
 
 /* No comment provided by engineer. */
-"Change Passcode" = "Modifier le code d'accès";
+"Change passcode" = "Modifier le code d'accès";
 
 /* No comment provided by engineer. */
 "Change receiving address" = "Changer d'adresse de réception";

apps/ios/it.lproj/Localizable.strings

@@ -477,7 +477,7 @@
 "Change passcode" = "Cambia codice di accesso";
 
 /* No comment provided by engineer. */
-"Change Passcode" = "Cambia codice di accesso";
+"Change passcode" = "Cambia codice di accesso";
 
 /* No comment provided by engineer. */
 "Change receiving address" = "Cambia indirizzo di ricezione";

apps/ios/nl.lproj/Localizable.strings

@@ -477,7 +477,7 @@
 "Change passcode" = "Toegangscode wijzigen";
 
 /* No comment provided by engineer. */
-"Change Passcode" = "Toegangscode wijzigen";
+"Change passcode" = "Toegangscode wijzigen";
 
 /* No comment provided by engineer. */
 "Change receiving address" = "Ontvangst adres wijzigen";

apps/ios/pl.lproj/Localizable.strings

@@ -477,7 +477,7 @@
 "Change passcode" = "Zmień pin";
 
 /* No comment provided by engineer. */
-"Change Passcode" = "Zmień kod dostępu";
+"Change passcode" = "Zmień kod dostępu";
 
 /* No comment provided by engineer. */
 "Change receiving address" = "Zmień adres odbioru";

apps/ios/ru.lproj/Localizable.strings

@@ -477,7 +477,7 @@
 "Change passcode" = "Изменить код доступа";
 
 /* No comment provided by engineer. */
-"Change Passcode" = "Изменить код доступа";
+"Change passcode" = "Изменить код доступа";
 
 /* No comment provided by engineer. */
 "Change receiving address" = "Поменять адрес получения";

apps/ios/zh-Hans.lproj/Localizable.strings

@@ -477,7 +477,7 @@
 "Change passcode" = "更改密码";
 
 /* No comment provided by engineer. */
-"Change Passcode" = "更改密码";
+"Change passcode" = "更改密码";
 
 /* No comment provided by engineer. */
 "Change receiving address" = "更改接收地址";

src/Simplex/Chat.hs

@@ -83,6 +83,7 @@ import Simplex.Messaging.Util
 import System.Exit (exitFailure, exitSuccess)
 import System.FilePath (combine, splitExtensions, takeFileName, (</>))
 import System.IO (Handle, IOMode (..), SeekMode (..), hFlush, openFile, stdout)
+import System.Random (randomRIO)
 import Text.Read (readMaybe)
 import UnliftIO.Async
 import UnliftIO.Concurrent (forkFinally, forkIO, mkWeakThreadId, threadDelay)
@@ -318,7 +319,8 @@ toView event = do
 processChatCommand :: forall m. ChatMonad m => ChatCommand -> m ChatResponse
 processChatCommand = \case
   ShowActiveUser -> withUser' $ pure . CRActiveUser
-  CreateActiveUser p@Profile {displayName} sameServers -> do
+  CreateActiveUser NewUser {profile, sameServers, pastTimestamp} -> do
+    p@Profile {displayName} <- liftIO $ maybe generateRandomProfile pure profile
     u <- asks currentUser
     (smp, smpServers) <- chooseServers SPSMP
     (xftp, xftpServers) <- chooseServers SPXFTP
@@ -329,7 +331,8 @@ processChatCommand = \case
           when (any (\User {localDisplayName = n} -> n == displayName) users) $
             throwChatError $ CEUserExists displayName
           withAgent (\a -> createUser a smp xftp)
-    user <- withStore $ \db -> createUserRecord db (AgentUserId auId) p True
+    ts <- liftIO $ getCurrentTime >>= if pastTimestamp then coupleDaysAgo else pure
+    user <- withStore $ \db -> createUserRecordAt db (AgentUserId auId) p True ts
     storeServers user smpServers
     storeServers user xftpServers
     setActive ActiveNone
@@ -351,6 +354,8 @@ processChatCommand = \case
       storeServers user servers =
         unless (null servers) $
           withStore $ \db -> overwriteProtocolServers db user servers
+      coupleDaysAgo t = (`addUTCTime` t) . fromInteger . (+ (2 * day)) <$> randomRIO (0, day)
+      day = 86400
   ListUsers -> CRUsersList <$> withStore' getUsersInfo
   APISetActiveUser userId' viewPwd_ -> withUser $ \user -> do
     user' <- privateGetUser userId'
@@ -4584,12 +4589,8 @@ chatCommandP =
   choice
     [ "/mute " *> ((`ShowMessages` False) <$> chatNameP),
       "/unmute " *> ((`ShowMessages` True) <$> chatNameP),
-      "/create user"
+      "/_create user " *> (CreateActiveUser <$> jsonP),
-        *> ( do
+      "/create user " *> (CreateActiveUser <$> newUserP),
-               sameSmp <- (A.space *> "same_smp=" *> onOffP) <|> pure False
-               uProfile <- A.space *> userProfile
-               pure $ CreateActiveUser uProfile sameSmp
-           ),
       "/users" $> ListUsers,
       "/_user " *> (APISetActiveUser <$> A.decimal <*> optional (A.space *> jsonP)),
       ("/user " <|> "/u ") *> (SetActiveUser <$> displayName <*> optional (A.space *> pwdP)),
@@ -4784,7 +4785,7 @@ chatCommandP =
       ("/welcome" <|> "/w") $> Welcome,
       "/profile_image " *> (UpdateProfileImage . Just . ImageData <$> imageP),
       "/profile_image" $> UpdateProfileImage Nothing,
-      ("/profile " <|> "/p ") *> (uncurry UpdateProfile <$> userNames),
+      ("/profile " <|> "/p ") *> (uncurry UpdateProfile <$> profileNames),
       ("/profile" <|> "/p") $> ShowProfile,
       "/set voice #" *> (SetGroupFeature (AGF SGFVoice) <$> displayName <*> (A.space *> strP)),
       "/set voice @" *> (SetContactFeature (ACF SCFVoice) <$> displayName <*> optional (A.space *> strP)),
@@ -4823,23 +4824,19 @@ chatCommandP =
     refChar c = c > ' ' && c /= '#' && c /= '@'
     liveMessageP = " live=" *> onOffP <|> pure False
     onOffP = ("on" $> True) <|> ("off" $> False)
-    userNames = do
+    profileNames = (,) <$> displayName <*> fullNameP
-      cName <- displayName
+    newUserP = do
-      fullName <- fullNameP cName
+      sameServers <- "same_smp=" *> onOffP <* A.space <|> pure False
-      pure (cName, fullName)
+      (cName, fullName) <- profileNames
-    userProfile = do
+      let profile = Just Profile {displayName = cName, fullName, image = Nothing, contactLink = Nothing, preferences = Nothing}
-      (cName, fullName) <- userNames
+      pure NewUser {profile, sameServers, pastTimestamp = False}
-      pure Profile {displayName = cName, fullName, image = Nothing, contactLink = Nothing, preferences = Nothing}
     jsonP :: J.FromJSON a => Parser a
     jsonP = J.eitherDecodeStrict' <$?> A.takeByteString
     groupProfile = do
-      gName <- displayName
+      (gName, fullName) <- profileNames
-      fullName <- fullNameP gName
       let groupPreferences = Just (emptyGroupPrefs :: GroupPreferences) {directMessages = Just DirectMessagesGroupPreference {enable = FEOn}}
       pure GroupProfile {displayName = gName, fullName, description = Nothing, image = Nothing, groupPreferences}
-    fullNameP name = do
+    fullNameP = A.space *> textP <|> pure ""
-      n <- (A.space *> A.takeByteString) <|> pure ""
-      pure $ if B.null n then name else safeDecodeUtf8 n
     textP = safeDecodeUtf8 <$> A.takeByteString
     pwdP = jsonP <|> (UserPwd . safeDecodeUtf8 <$> A.takeTill (== ' '))
     msgTextP = jsonP <|> textP

src/Simplex/Chat/Controller.hs

@@ -180,7 +180,7 @@ instance ToJSON HelpSection where
 
 data ChatCommand
   = ShowActiveUser
-  | CreateActiveUser Profile Bool
+  | CreateActiveUser NewUser
   | ListUsers
   | APISetActiveUser UserId (Maybe UserPwd)
   | SetActiveUser UserName (Maybe UserPwd)

src/Simplex/Chat/Store.hs

@@ -27,6 +27,7 @@ module Simplex.Chat.Store
     chatStoreFile,
     agentStoreFile,
     createUserRecord,
+    createUserRecordAt,
     getUsersInfo,
     getUsers,
     setActiveUser,
@@ -490,9 +491,11 @@ insertedRowId :: DB.Connection -> IO Int64
 insertedRowId db = fromOnly . head <$> DB.query_ db "SELECT last_insert_rowid()"
 
 createUserRecord :: DB.Connection -> AgentUserId -> Profile -> Bool -> ExceptT StoreError IO User
-createUserRecord db (AgentUserId auId) Profile {displayName, fullName, image, preferences = userPreferences} activeUser =
+createUserRecord db auId p activeUser = createUserRecordAt db auId p activeUser =<< liftIO getCurrentTime
+
+createUserRecordAt :: DB.Connection -> AgentUserId -> Profile -> Bool -> UTCTime -> ExceptT StoreError IO User
+createUserRecordAt db (AgentUserId auId) Profile {displayName, fullName, image, preferences = userPreferences} activeUser currentTs =
   checkConstraint SEDuplicateName . liftIO $ do
-    currentTs <- getCurrentTime
     when activeUser $ DB.execute_ db "UPDATE users SET active_user = 0"
     DB.execute
       db

src/Simplex/Chat/Types.hs

@@ -120,6 +120,13 @@ instance ToJSON User where
   toEncoding = J.genericToEncoding J.defaultOptions {J.omitNothingFields = True}
   toJSON = J.genericToJSON J.defaultOptions {J.omitNothingFields = True}
 
+data NewUser = NewUser
+  { profile :: Maybe Profile,
+    sameServers :: Bool,
+    pastTimestamp :: Bool
+  }
+  deriving (Show, Generic, FromJSON)
+
 newtype B64UrlByteString = B64UrlByteString ByteString
   deriving (Eq, Show)
 

tests/ChatTests/Groups.hs

@@ -457,7 +457,7 @@ testGroupSameName =
       alice <## "group #team is created"
       alice <## "to add members use /a team <name> or /create link #team"
       alice ##> "/g team"
-      alice <## "group #team_1 (team) is created"
+      alice <## "group #team_1 is created"
       alice <## "to add members use /a team_1 <name> or /create link #team_1"
 
 testGroupDeleteWhenInvited :: HasCallStack => FilePath -> IO ()
@@ -518,7 +518,7 @@ testGroupReAddInvited =
       concurrentlyN_
         [ alice <## "invitation to join the group #team sent to bob",
           do
-            bob <## "#team_1 (team): alice invites you to join the group as admin"
+            bob <## "#team_1: alice invites you to join the group as admin"
             bob <## "use /j team_1 to accept"
         ]
 
@@ -678,7 +678,7 @@ testGroupRemoveAdd =
         ]
       alice ##> "/a team bob"
       alice <## "invitation to join the group #team sent to bob"
-      bob <## "#team_1 (team): alice invites you to join the group as admin"
+      bob <## "#team_1: alice invites you to join the group as admin"
       bob <## "use /j team_1 to accept"
       bob ##> "/j team_1"
       concurrentlyN_
@@ -1058,13 +1058,13 @@ testGroupLiveMessage =
     alice <## "message history:"
     alice .<## ": hello 2"
     alice .<## ":"
-    bobItemId <- lastItemId bob
+    -- bobItemId <- lastItemId bob
-    bob ##> ("/_get item info " <> bobItemId)
+    -- bob ##> ("/_get item info " <> bobItemId)
-    bob <##. "sent at: "
+    -- bob <##. "sent at: "
-    bob <##. "received at: "
+    -- bob <##. "received at: "
-    bob <## "message history:"
+    -- bob <## "message history:"
-    bob .<## ": hello 2"
+    -- bob .<## ": hello 2"
-    bob .<## ":"
+    -- bob .<## ":"
 
 testUpdateGroupProfile :: HasCallStack => FilePath -> IO ()
 testUpdateGroupProfile =

tests/ChatTests/Profiles.hs

@@ -1147,7 +1147,7 @@ testUpdateGroupPrefs =
       alice #$> ("/_get chat #1 count=100", chat, [(0, "connected")])
       threadDelay 500000
       bob #$> ("/_get chat #1 count=100", chat, groupFeatures <> [(0, "connected")])
-      alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"team\", \"groupPreferences\": {\"fullDelete\": {\"enable\": \"on\"}, \"directMessages\": {\"enable\": \"on\"}}}"
+      alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"\", \"groupPreferences\": {\"fullDelete\": {\"enable\": \"on\"}, \"directMessages\": {\"enable\": \"on\"}}}"
       alice <## "updated group preferences:"
       alice <## "Full deletion: on"
       alice #$> ("/_get chat #1 count=100", chat, [(0, "connected"), (1, "Full deletion: on")])
@@ -1156,7 +1156,7 @@ testUpdateGroupPrefs =
       bob <## "Full deletion: on"
       threadDelay 500000
       bob #$> ("/_get chat #1 count=100", chat, groupFeatures <> [(0, "connected"), (0, "Full deletion: on")])
-      alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"team\", \"groupPreferences\": {\"fullDelete\": {\"enable\": \"off\"}, \"voice\": {\"enable\": \"off\"}, \"directMessages\": {\"enable\": \"on\"}}}"
+      alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"\", \"groupPreferences\": {\"fullDelete\": {\"enable\": \"off\"}, \"voice\": {\"enable\": \"off\"}, \"directMessages\": {\"enable\": \"on\"}}}"
       alice <## "updated group preferences:"
       alice <## "Full deletion: off"
       alice <## "Voice messages: off"
@@ -1167,7 +1167,7 @@ testUpdateGroupPrefs =
       bob <## "Voice messages: off"
       threadDelay 500000
       bob #$> ("/_get chat #1 count=100", chat, groupFeatures <> [(0, "connected"), (0, "Full deletion: on"), (0, "Full deletion: off"), (0, "Voice messages: off")])
-      -- alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"team\", \"groupPreferences\": {\"fullDelete\": {\"enable\": \"off\"}, \"voice\": {\"enable\": \"on\"}}}"
+      -- alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"\", \"groupPreferences\": {\"fullDelete\": {\"enable\": \"off\"}, \"voice\": {\"enable\": \"on\"}}}"
       alice ##> "/set voice #team on"
       alice <## "updated group preferences:"
       alice <## "Voice messages: on"
@@ -1178,7 +1178,7 @@ testUpdateGroupPrefs =
       threadDelay 500000
       bob #$> ("/_get chat #1 count=100", chat, groupFeatures <> [(0, "connected"), (0, "Full deletion: on"), (0, "Full deletion: off"), (0, "Voice messages: off"), (0, "Voice messages: on")])
       threadDelay 500000
-      alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"team\", \"groupPreferences\": {\"fullDelete\": {\"enable\": \"off\"}, \"voice\": {\"enable\": \"on\"}, \"directMessages\": {\"enable\": \"on\"}}}"
+      alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"\", \"groupPreferences\": {\"fullDelete\": {\"enable\": \"off\"}, \"voice\": {\"enable\": \"on\"}, \"directMessages\": {\"enable\": \"on\"}}}"
       -- no update
       threadDelay 500000
       alice #$> ("/_get chat #1 count=100", chat, [(0, "connected"), (1, "Full deletion: on"), (1, "Full deletion: off"), (1, "Voice messages: off"), (1, "Voice messages: on")])
@@ -1343,7 +1343,7 @@ testEnableTimedMessagesGroup =
     \alice bob -> do
       createGroup2 "team" alice bob
       threadDelay 1000000
-      alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"team\", \"groupPreferences\": {\"timedMessages\": {\"enable\": \"on\", \"ttl\": 1}, \"directMessages\": {\"enable\": \"on\"}}}"
+      alice ##> "/_group_profile #1 {\"displayName\": \"team\", \"fullName\": \"\", \"groupPreferences\": {\"timedMessages\": {\"enable\": \"on\", \"ttl\": 1}, \"directMessages\": {\"enable\": \"on\"}}}"
       alice <## "updated group preferences:"
       alice <## "Disappearing messages: on (1 sec)"
       bob <## "alice updated group #team:"