mobile: simplex links in UI, core: trusted uri for simplex links (#1410)

apps/ios/Shared/Views/Chat/ChatItem/MsgContentView.swift

@@ -70,6 +70,12 @@ private func formatText(_ ft: FormattedText, _ preview: Bool) -> Text {
         case .secret: return Text(t).foregroundColor(.clear).underline(color: .primary)
         case let .colored(color): return Text(t).foregroundColor(color.uiColor)
         case .uri: return linkText(t, t, preview, prefix: "")
+        case let .simplexLink(linkType, simplexUri, smpHosts):
+            switch privacySimplexLinkModeDefault.get() {
+            case .description: return linkText(simplexLinkText(linkType, smpHosts), simplexUri, preview, prefix: "")
+            case .full: return linkText(t, simplexUri, preview, prefix: "")
+            case .browser: return linkText(t, t, preview, prefix: "")
+            }
         case .email: return linkText(t, t, preview, prefix: "mailto:")
         case .phone: return linkText(t, t.replacingOccurrences(of: " ", with: ""), preview, prefix: "tel:")
         }
@@ -88,6 +94,10 @@ private func linkText(_ s: String, _ link: String,
     ]))).underline()
 }
 
+private func simplexLinkText(_ linkType: SimplexLinkType, _ smpHosts: [String]) -> String {
+    linkType.description + " " + "(via \(smpHosts.first ?? "?"))"
+}
+
 struct MsgContentView_Previews: PreviewProvider {
     static var previews: some View {
         let chatItem = ChatItem.getSample(1, .directSnd, .now, "hello")

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

@@ -14,6 +14,7 @@ struct PrivacySettings: View {
     @AppStorage(DEFAULT_PRIVACY_LINK_PREVIEWS) private var useLinkPreviews = true
     @AppStorage(DEFAULT_DEVELOPER_TOOLS) private var developerTools = false
     @AppStorage(GROUP_DEFAULT_PRIVACY_TRANSFER_IMAGES_INLINE, store: groupDefaults) private var transferImagesInline = false
+    @State private var simplexLinkMode = privacySimplexLinkModeDefault.get()
 
     var body: some View {
         VStack {
@@ -21,7 +22,8 @@ struct PrivacySettings: View {
                 Section("Device") {
                     SimplexLockSetting()
                 }
-                Section("Chats") {
+
+                Section {
                     settingsRow("photo") {
                         Toggle("Auto-accept images", isOn: $autoAcceptImages)
                             .onChange(of: autoAcceptImages) {
@@ -36,6 +38,23 @@ struct PrivacySettings: View {
                     settingsRow("network") {
                         Toggle("Send link previews", isOn: $useLinkPreviews)
                     }
+                    settingsRow("link") {
+                        Picker("SimpleX links", selection: $simplexLinkMode) {
+                            ForEach(SimpleXLinkMode.values) { mode in
+                                Text(mode.text)
+                            }
+                        }
+                    }
+                    .frame(height: 36)
+                    .onChange(of: simplexLinkMode) { mode in
+                        privacySimplexLinkModeDefault.set(mode)
+                    }
+                } header: {
+                    Text("Chats")
+                } footer: {
+                    if case .browser = simplexLinkMode {
+                        Text("Opening the link in the browser may reduce connection privacy and security.")
+                    }
                 }
             }
         }

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

@@ -23,6 +23,7 @@ let DEFAULT_WEBRTC_POLICY_RELAY = "webrtcPolicyRelay"
 let DEFAULT_WEBRTC_ICE_SERVERS = "webrtcICEServers"
 let DEFAULT_PRIVACY_ACCEPT_IMAGES = "privacyAcceptImages"
 let DEFAULT_PRIVACY_LINK_PREVIEWS = "privacyLinkPreviews"
+let DEFAULT_PRIVACY_SIMPLEX_LINK_MODE = "privacySimplexLinkMode"
 let DEFAULT_EXPERIMENTAL_CALLS = "experimentalCalls"
 let DEFAULT_CHAT_ARCHIVE_NAME = "chatArchiveName"
 let DEFAULT_CHAT_ARCHIVE_TIME = "chatArchiveTime"
@@ -43,6 +44,7 @@ let appDefaults: [String: Any] = [
     DEFAULT_WEBRTC_POLICY_RELAY: true,
     DEFAULT_PRIVACY_ACCEPT_IMAGES: true,
     DEFAULT_PRIVACY_LINK_PREVIEWS: true,
+    DEFAULT_PRIVACY_SIMPLEX_LINK_MODE: "description",
     DEFAULT_EXPERIMENTAL_CALLS: false,
     DEFAULT_CHAT_V3_DB_MIGRATION: "offer",
     DEFAULT_DEVELOPER_TOOLS: false,
@@ -54,6 +56,24 @@ let appDefaults: [String: Any] = [
     DEFAULT_CONNECT_VIA_LINK_TAB: "scan"
 ]
 
+enum SimpleXLinkMode: String, Identifiable {
+    case description
+    case full
+    case browser
+
+    static var values: [SimpleXLinkMode] = [.description, .full, .browser]
+
+    public var id: Self { self }
+
+    var text: LocalizedStringKey {
+        switch self {
+        case .description: return "Description"
+        case .full: return "Full link"
+        case .browser: return "Via browser"
+        }
+    }
+}
+
 private var indent: CGFloat = 36
 
 let chatArchiveTimeDefault = DateDefault(defaults: UserDefaults.standard, forKey: DEFAULT_CHAT_ARCHIVE_TIME)
@@ -64,6 +84,8 @@ let encryptionStartedAtDefault = DateDefault(defaults: UserDefaults.standard, fo
 
 let connectViaLinkTabDefault = EnumDefault<ConnectViaLinkTab>(defaults: UserDefaults.standard, forKey: DEFAULT_CONNECT_VIA_LINK_TAB, withDefault: .scan)
 
+let privacySimplexLinkModeDefault = EnumDefault<SimpleXLinkMode>(defaults: UserDefaults.standard, forKey: DEFAULT_PRIVACY_SIMPLEX_LINK_MODE, withDefault: .description)
+
 func setGroupDefaults() {
     privacyAcceptImagesGroupDefault.set(UserDefaults.standard.bool(forKey: DEFAULT_PRIVACY_ACCEPT_IMAGES))
 }