Guard against the last one

snapauthapp · May 30, 2024 · 533a8c8 · 533a8c8
1 parent 3cb2a7d
commit 533a8c8
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/Sources/SnapAuth/SnapAuth+ASACPCP.swift b/Sources/SnapAuth/SnapAuth+ASACPCP.swift
@@ -4,8 +4,13 @@ import AuthenticationServices
 @available(macOS 12.0, iOS 15.0, tvOS 16.0, visionOS 1.0, *)
 extension SnapAuth: ASAuthorizationControllerPresentationContextProviding {
     public func presentationAnchor(for controller: ASAuthorizationController) -> ASPresentationAnchor {
-        // FIXME: do not force unwrap
-        logger.debug("presentation anchor")
+        guard anchor != nil else {
+            // There's currently no logical path here since the three
+            // entrypoints all set the anchor, but in case more direct control
+            // paths are exposed this should prevent an unwrapping crash
+            logger.error("Presentation anchor missing, providing default")
+            return ASPresentationAnchor.default
+        }
         return anchor!
     }
 }