chore: improve error messages (#132)

Author: phantumcode

HostApp/HostApp/Views/ExampleLivenessView.swift

@@ -43,6 +43,8 @@ struct ExampleLivenessView: View {
                         viewModel.presentationState = .error(.socketClosed)
                     case .failure(.countdownNoFace), .failure(.countdownFaceTooClose), .failure(.countdownMultipleFaces):
                         viewModel.presentationState = .error(.countdownFaceTooClose)
+                    case .failure(.invalidSignature):
+                        viewModel.presentationState = .error(.invalidSignature)
                     default:
                         viewModel.presentationState = .liveness
                     }
@@ -70,6 +72,8 @@ struct ExampleLivenessView: View {
                         LivenessCheckErrorContentView.faceMatchTimeOut
                     case .countdownNoFace, .countdownFaceTooClose, .countdownMultipleFaces:
                         LivenessCheckErrorContentView.failedDuringCountdown
+                    case .invalidSignature:
+                        LivenessCheckErrorContentView.invalidSignature
                     default:
                         LivenessCheckErrorContentView.unexpected
                     }

HostApp/HostApp/Views/LivenessCheckErrorContentView.swift

@@ -50,6 +50,11 @@ extension LivenessCheckErrorContentView {
         name: "Check failed during countdown",
         description: "Avoid moving closer during countdown and ensure only one face is in front of camera."
     )
+
+    static let invalidSignature = LivenessCheckErrorContentView(
+        name: "The signature on the request is invalid.",
+        description: "Ensure the device time is correct and try again."
+    )
 }
 
 struct LivenessCheckErrorContentView_Previews: PreviewProvider {

Package.swift

@@ -13,7 +13,7 @@ let package = Package(
             targets: ["FaceLiveness"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/aws-amplify/amplify-swift", exact: "2.29.1")
+        .package(url: "https://github.com/aws-amplify/amplify-swift", exact: "2.29.3")
     ],
     targets: [
         .target(

Sources/FaceLiveness/Views/Liveness/FaceLivenessDetectionError.swift

@@ -120,6 +120,12 @@ public struct FaceLivenessDetectionError: Error, Equatable {
         recoverySuggestion: ""
     )
 
+    public static let invalidSignature = FaceLivenessDetectionError(
+        code: 17,
+        message: "The signature on the request is invalid.",
+        recoverySuggestion: "Ensure the device time is correct and try again."
+    )
+
     public static func == (lhs: FaceLivenessDetectionError, rhs: FaceLivenessDetectionError) -> Bool {
         lhs.code == rhs.code
     }

Sources/FaceLiveness/Views/Liveness/FaceLivenessDetectionView.swift

@@ -202,7 +202,7 @@ public struct FaceLivenessDetectorView: View {
         case .userCancelled:
             return .userCancelled
         case .timedOut:
-            return .sessionTimedOut
+            return .faceInOvalMatchExceededTimeLimitError
         case .socketClosed:
             return .socketClosed
         default:
@@ -273,6 +273,8 @@ private func map(detectionCompletion: @escaping (Result<Void, FaceLivenessDetect
             detectionCompletion(.failure(.serviceUnavailable))
         case .failure(.sessionNotFound):
             detectionCompletion(.failure(.sessionNotFound))
+        case .failure(.invalidSignature):
+            detectionCompletion(.failure(.invalidSignature))
         default:
             detectionCompletion(.failure(.unknown))
         }

Tests/IntegrationTestApp/IntegrationTestApp/Extension/MockLivenessCaptureSession.swift

@@ -30,7 +30,7 @@ final class MockLivenessCaptureSession: LivenessCaptureSession {
         displayLink?.invalidate()
     }
 
-    override func startSession(frame: CGRect) throws -> CALayer {
+    override func configureCamera(frame: CGRect) throws -> CALayer {
         videoRenderView = VideoRenderView(frame: frame)
         let asset = AVAsset(url: inputFile)
         // Setup display link