Merge pull request #1254 from firebase/TOCs-privacy-policy

Author: russellwheatley

FirebaseSwiftUI/FirebaseAuthSwiftUI/Sources/Services/AuthConfiguration.swift

@@ -6,17 +6,17 @@ public struct AuthConfiguration {
   let interactiveDismissEnabled: Bool
   let shouldAutoUpgradeAnonymousUsers: Bool
   let customStringsBundle: Bundle?
-  let tosUrl: URL
-  let privacyPolicyUrl: URL
+  let tosUrl: URL?
+  let privacyPolicyUrl: URL?
   let emailLinkSignInActionCodeSettings: ActionCodeSettings?
   let verifyEmailActionCodeSettings: ActionCodeSettings?
 
   public init(shouldHideCancelButton: Bool = false,
               interactiveDismissEnabled: Bool = true,
               shouldAutoUpgradeAnonymousUsers: Bool = false,
               customStringsBundle: Bundle? = nil,
-              tosUrl: URL = URL(string: "https://example.com/tos")!,
-              privacyPolicyUrl: URL = URL(string: "https://example.com/privacy")!,
+              tosUrl: URL? = nil,
+              privacyPolicyUrl: URL? = nil,
               emailLinkSignInActionCodeSettings: ActionCodeSettings? = nil,
               verifyEmailActionCodeSettings: ActionCodeSettings? = nil) {
     self.shouldHideCancelButton = shouldHideCancelButton

FirebaseSwiftUI/FirebaseAuthSwiftUI/Sources/Utils/StringUtils.swift

@@ -308,12 +308,14 @@ public class StringUtils {
   public var enterPhoneNumberLabel: String {
     return localizedString(for: "Enter phone number")
   }
+
   /// Phone provider
   /// found in:
   /// - PhoneAuthButtonView
   public var phoneNumberVerificationCodeLabel: String {
     return localizedString(for: "Enter verification code")
   }
+
   /// Phone provider
   /// found in:
   /// - PhoneAuthButtonView
@@ -327,4 +329,25 @@ public class StringUtils {
   public var verifyPhoneNumberAndSignInLabel: String {
     return localizedString(for: "Verify phone number and sign-in")
   }
+
+  /// Terms of Service label
+  /// found in:
+  /// - PrivacyTOCsView
+  public var termsOfServiceLabel: String {
+    return localizedString(for: "TermsOfService")
+  }
+
+  /// Terms of Service message
+  /// found in:
+  /// - PrivacyTOCsView
+  public var termsOfServiceMessage: String {
+    return localizedString(for: "TermsOfServiceMessage")
+  }
+
+  /// Privacy Policy
+  /// found in:
+  /// - PrivacyTOCsView
+  public var privacyPolicyLabel: String {
+    return localizedString(for: "PrivacyPolicy")
+  }
 }

FirebaseSwiftUI/FirebaseAuthSwiftUI/Sources/Views/AuthPickerView.swift

@@ -50,6 +50,7 @@ extension AuthPickerView: View {
               .foregroundColor(.blue)
           }
         }
+        PrivacyTOCsView(displayMode: .footer)
         Text(authService.errorMessage).foregroundColor(.red)
       }
     }

FirebaseSwiftUI/FirebaseAuthSwiftUI/Sources/Views/PrivacyTOCsView.swift

@@ -0,0 +1,75 @@
+//
+//  PrivacyTOCsView.swift
+//  FirebaseUI
+//
+//  Created by Russell Wheatley on 12/05/2025.
+//
+import FirebaseCore
+import SwiftUI
+
+@MainActor
+struct PrivacyTOCsView {
+  @Environment(AuthService.self) private var authService
+  enum DisplayMode {
+    case full, footer
+  }
+
+  let displayMode: DisplayMode
+
+  public init(displayMode: DisplayMode = .full) {
+    self.displayMode = displayMode
+  }
+
+  private func attributedMessage(tosURL: URL, privacyURL: URL) -> AttributedString {
+    let tosText = authService.string.termsOfServiceLabel
+    let privacyText = authService.string.privacyPolicyLabel
+
+    let format: String = displayMode == .full
+      ? authService.string.termsOfServiceMessage
+      : "%@    %@"
+
+    let fullText = String(format: format, tosText, privacyText)
+
+    var attributed = AttributedString(fullText)
+
+    if let tosRange = attributed.range(of: tosText) {
+      attributed[tosRange].link = tosURL
+      attributed[tosRange].foregroundColor = .blue
+    }
+
+    if let privacyRange = attributed.range(of: privacyText) {
+      attributed[privacyRange].link = privacyURL
+      attributed[privacyRange].foregroundColor = .blue
+    }
+
+    return attributed
+  }
+}
+
+extension PrivacyTOCsView: View {
+  public var body: some View {
+    Group {
+      if let tosURL = authService.configuration.tosUrl,
+         let privacyURL = authService.configuration.privacyPolicyUrl {
+        Text(attributedMessage(tosURL: tosURL, privacyURL: privacyURL))
+          .multilineTextAlignment(displayMode == .full ? .leading : .trailing)
+          .font(.footnote)
+          .foregroundColor(.primary)
+          .padding()
+      } else {
+        EmptyView()
+      }
+    }
+  }
+}
+
+#Preview {
+  FirebaseOptions.dummyConfigurationForPreview()
+  let configuration = AuthConfiguration(
+    tosUrl: URL(string: "https://example.com/tos"),
+    privacyPolicyUrl: URL(string: "https://example.com/privacy")
+  )
+  let authService = AuthService(configuration: configuration)
+  return PrivacyTOCsView(displayMode: .footer)
+    .environment(authService)
+}

FirebaseSwiftUI/README.md

@@ -75,9 +75,9 @@ public struct AuthConfiguration {
   // custom string bundle for string localizations
   let customStringsBundle: Bundle?
   // terms of service URL
-  let tosUrl: URL
+  let tosUrl: URL?
   // privacy policy URL
-  let privacyPolicyUrl: URL
+  let privacyPolicyUrl: URL?
   // action code settings for email sign in link
   let emailLinkSignInActionCodeSettings: ActionCodeSettings?
   // action code settings verifying email address
@@ -87,13 +87,15 @@ public struct AuthConfiguration {
               interactiveDismissEnabled: Bool = true,
               shouldAutoUpgradeAnonymousUsers: Bool = false,
               customStringsBundle: Bundle? = nil,
-              tosUrl: URL = URL(string: "https://example.com/tos")!,
-              privacyPolicyUrl: URL = URL(string: "https://example.com/privacy")!,
+              tosUrl: URL? = nil,
+              privacyPolicyUrl: URL? = nil,
               emailLinkSignInActionCodeSettings: ActionCodeSettings? = nil,
               verifyEmailActionCodeSettings: ActionCodeSettings? = nil)
 }
 ```
 
+> Note: Both `tosUrl` and `privacyPolicyUrl` have to be set for them to be rendered in the UI.
+
 ## Configuring providers
 
 1. Ensure the provider is installed from step 1 (e.g. if configuring Google provider, you need to install `FirebaseGoogleSwiftUI` package).

samples/swiftui/FirebaseSwiftUIExample/FirebaseSwiftUIExample/ContentView.swift

@@ -26,6 +26,8 @@ struct ContentView: View {
     actionCodeSettings.setIOSBundleID(Bundle.main.bundleIdentifier!)
     let configuration = AuthConfiguration(
       shouldAutoUpgradeAnonymousUsers: true,
+      tosUrl: URL(string: "https://example.com/tos"),
+      privacyPolicyUrl: URL(string: "https://example.com/privacy"),
       emailLinkSignInActionCodeSettings: actionCodeSettings
     )
     authService = AuthService(