@@ -54,30 +54,17 @@ public final class LocalAuthenticationProvider: LocalAuthenticationProviderProto
5454 return true
5555 } else {
5656 if let error {
57- switch error. code {
58- case LocalAuthenticationError . denied:
59- logger. error ( " \( #function) Denied access on local authentication with: \( error. localizedDescription) " )
60- throw LocalAuthenticationError . deniedAccess
61- case LocalAuthenticationError . noBiometricsEnrolled:
62- if context. biometryType == . faceID {
63- logger. error ( " \( #function) Denied access on face id with: \( error. localizedDescription) " )
64- throw LocalAuthenticationError . noFaceIdEnrolled
65- } else if context. biometryType == . touchID {
66- logger. error ( " \( #function) Denied access on touch id with: \( error. localizedDescription) " )
67- throw LocalAuthenticationError . noFingerprintEnrolled
68- } else {
69- logger. error ( " \( #function) Local Authentication Error: \( error. localizedDescription) " )
70- throw LocalAuthenticationError . biometricError
71- }
72- case LocalAuthenticationError . passcodeNotSet:
73- logger. error ( " \( #function) Check biometric auth available: \( error. localizedDescription) " )
74- throw LocalAuthenticationError . noPasscodeSet
75- default :
76- logger. error ( " \( #function) Local Authentication Error: \( error. localizedDescription) " )
77- throw LocalAuthenticationError . error ( error)
78- }
57+ throw mapToLocalAuthenticationError ( error, context: context)
58+ } else {
59+ throw mapToLocalAuthenticationError (
60+ NSError (
61+ domain: LAError . errorDomain,
62+ code: LocalAuthenticationError . unknownError,
63+ userInfo: nil
64+ ) ,
65+ context: context
66+ )
7967 }
80- return false
8168 }
8269 }
8370
@@ -86,10 +73,13 @@ public final class LocalAuthenticationProvider: LocalAuthenticationProviderProto
8673 /// - Returns: `true` if biometric authentication was successfully set up, `false` otherwise.
8774 /// - Throws: An appropriate `LocalAuthenticationError` if an error occurs during setup.
8875 public func setBiometricAuthentication( localizedReason: String ) async throws -> Bool {
89- if try await checkBiometricAvailable ( with: . biometrics) {
90- return try await context. evaluatePolicy ( . deviceOwnerAuthenticationWithBiometrics, localizedReason: localizedReason)
91- } else {
92- return false
76+ _ = try await checkBiometricAvailable ( with: . biometrics)
77+ do {
78+ return try await context. evaluatePolicy (
79+ . deviceOwnerAuthenticationWithBiometrics, localizedReason: localizedReason
80+ )
81+ } catch {
82+ throw mapToLocalAuthenticationError ( error, context: context)
9383 }
9484 }
9585
@@ -98,27 +88,19 @@ public final class LocalAuthenticationProvider: LocalAuthenticationProviderProto
9888 /// - Returns: `true` if authentication was successful, `false` otherwise.
9989 /// - Throws: An appropriate `LocalAuthenticationError` if an error occurs during authentication.
10090 public func authenticate( localizedReason: String ) async throws -> Bool {
101- if try await checkBiometricAvailable ( with: . biometrics) {
102- guard context. biometryType != . none else {
103- logger. error ( " \( #function) User face or fingerprint were not recognized " )
104- throw LocalAuthenticationError . biometricError
105- }
106-
107- do {
108- if try await context. evaluatePolicy ( . deviceOwnerAuthenticationWithBiometrics, localizedReason: localizedReason) {
109- return true
110- }
111- } catch LAError. userCancel {
112- throw LocalAuthenticationError . userCanceled
113- } catch {
114- throw error
115- }
116-
91+ _ = try await checkBiometricAvailable ( with: . biometrics)
92+ guard context. biometryType != . none else {
11793 logger. error ( " \( #function) User face or fingerprint were not recognized " )
118- return false
119- } else {
120- return false
94+ throw LocalAuthenticationError . biometricError
12195 }
96+ do {
97+ if try await context. evaluatePolicy ( . deviceOwnerAuthenticationWithBiometrics, localizedReason: localizedReason) {
98+ return true
99+ }
100+ } catch {
101+ throw mapToLocalAuthenticationError ( error, context: context)
102+ }
103+ return false
122104 }
123105
124106 /// Retrieves the type of biometric authentication available on the device.
@@ -142,4 +124,107 @@ public final class LocalAuthenticationProvider: LocalAuthenticationProviderProto
142124 }
143125 return . none
144126 }
127+
128+ /// Maps an `Error` to a corresponding `LocalAuthenticationError` for consistent error handling.
129+ /// - Parameters:
130+ /// - error: The original error thrown by the Local Authentication framework.
131+ /// - context: The `LAContext` used during authentication.
132+ /// - Returns: A `LocalAuthenticationError` that represents the mapped error condition.
133+ func mapToLocalAuthenticationError(
134+ _ error: Error ,
135+ context: LAContext
136+ ) -> LocalAuthenticationError {
137+ if let laError = error as? LAError {
138+ return handleLAError ( laError, context: context)
139+ }
140+ /// Converts NSError from the LAError domain into a type-safe LAError and maps it to custom LocalAuthenticationError
141+ if let nsError = error as NSError ? , nsError. domain == LAError . errorDomain {
142+ let laError = LAError ( _nsError: nsError)
143+ logger. error ( " \( #function) Caught NSError with LAError domain: \( nsError. localizedDescription) " )
144+ return handleLAError ( laError, context: context)
145+ }
146+ logger. error ( " \( #function) Unknown error: \( error. localizedDescription) " )
147+ return . error( error)
148+ }
149+
150+ /// Maps an `LAError` to a corresponding `LocalAuthenticationError` using a direct switch statement.
151+ /// - Parameters:
152+ /// - laError: The `LAError` received from the Local Authentication framework.
153+ /// - context: The `LAContext` used during authentication.
154+ /// - Returns: `LocalAuthenticationError` that represents the equivalent error condition.
155+ // swiftlint:disable:next cyclomatic_complexity
156+ func handleLAError( _ laError: LAError , context: LAContext ) -> LocalAuthenticationError {
157+ let localizedDescription = laError. localizedDescription
158+ switch laError. code {
159+ case . authenticationFailed:
160+ logger. error ( " User failed to provide valid credentials: \( localizedDescription) " )
161+ return . authenticationFailed
162+ case . userCancel:
163+ logger. error ( " User canceled the authentication process: \( localizedDescription) " )
164+ return . userCanceled
165+ case . userFallback:
166+ logger. error ( " User tapped fallback button: \( localizedDescription) " )
167+ return . userFallback
168+ case . systemCancel:
169+ logger. error ( " System canceled authentication: \( localizedDescription) " )
170+ return . systemCancel
171+ case . appCancel:
172+ logger. error ( " App canceled authentication: \( localizedDescription) " )
173+ return . appCancel
174+ case . notInteractive:
175+ logger. error ( " Displaying UI forbidden: \( localizedDescription) " )
176+ return . notInteractive
177+ case . biometryLockout:
178+ logger. error ( " Biometry locked due to too many failed attempts: \( localizedDescription) " )
179+ return . biometryLockout
180+ case . passcodeNotSet:
181+ logger. error ( " Passcode not set: \( localizedDescription) " )
182+ return . noPasscodeSet
183+ case . biometryNotAvailable:
184+ logger. error ( " Biometry not available: \( localizedDescription) " )
185+ return . biometryNotAvailable
186+ case . invalidContext:
187+ logger. error ( " Authentication context is invalid: \( localizedDescription) " )
188+ return . invalidContext
189+ case . biometryNotEnrolled:
190+ return handleBiometryNotEnrolledError ( context: context, laError: laError)
191+ #if os(macOS)
192+ case . biometryDisconnected:
193+ logger. error ( " Biometric accessory not connected: \( localizedDescription) " )
194+ return . biometryDisconnected
195+ case . biometryNotPaired:
196+ logger. error ( " No paired biometric accessory: \( localizedDescription) " )
197+ return . biometryNotPaired
198+ case . invalidDimensions:
199+ logger. error ( " Biometric sensor data has invalid dimensions: \( localizedDescription) " )
200+ return . invalidDimensions
201+ #endif
202+ default :
203+ logger. error ( " Unknown LAError: \( localizedDescription) " )
204+ return . error( laError)
205+ }
206+ }
207+
208+ /// Handles `.biometryNotEnrolled` errors by mapping them to specific biometric enrollment issues.
209+ /// - Parameters:
210+ /// - context: The `LAContext` containing information about the current biometry type.
211+ /// - laError: The `LAError` instance with the `.biometryNotEnrolled` code.
212+ /// - Returns: A `LocalAuthenticationError` indicating the missing biometric enrollment type.
213+ func handleBiometryNotEnrolledError(
214+ context: LAContext ,
215+ laError: LAError
216+ ) -> LocalAuthenticationError {
217+ let localizedDescription = laError. localizedDescription
218+ switch context. biometryType {
219+ case . faceID:
220+ logger. error ( " No Face ID enrolled: \( localizedDescription) " )
221+ return . noFaceIdEnrolled
222+ case . touchID:
223+ logger. error ( " No Touch ID enrolled: \( localizedDescription) " )
224+ return . noFingerprintEnrolled
225+ default :
226+ logger. error ( " No biometrics enrolled: \( localizedDescription) " )
227+ return . biometricError
228+ }
229+ }
145230}
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