Struct FallbackBiometricHandler 

pub struct FallbackBiometricHandler { /* private fields */ }

Fallback biometric handler for platforms without biometric hardware.

This handler returns “not available” for all capability checks and descriptive errors for all operations. It enables code to run on any platform without requiring compile-time feature flags.

Usage

use aura_effects::FallbackBiometricHandler;

let handler = FallbackBiometricHandler::new()?;
// All capability checks return false
assert!(!handler.supports_hardware_security());

Implementations

impl FallbackBiometricHandler

pub fn new() -> Result<Self, BiometricError>

Create a new fallback biometric handler

Trait Implementations

impl BiometricEffects for FallbackBiometricHandler

fn supports_hardware_security(&self) -> bool

Check if this implementation supports hardware security

fn get_platform_capabilities(&self) -> Vec<String>

Get platform-specific biometric capabilities

fn get_biometric_capabilities<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<BiometricCapability>, BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Check what biometric capabilities are available on this device

fn is_biometric_available<'life0, 'async_trait>( &'life0 self, _biometric_type: BiometricType, ) -> Pin<Box<dyn Future<Output = Result<bool, BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Check if a specific biometric type is available and enrolled

fn enroll_biometric<'life0, 'life1, 'async_trait>( &'life0 self, _config: BiometricConfig, _user_prompt: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<BiometricEnrollmentResult, BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Enroll a new biometric template

fn verify_biometric<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _biometric_type: BiometricType, _user_prompt: &'life1 str, _template_id: Option<&'life2 str>, ) -> Pin<Box<dyn Future<Output = Result<BiometricVerificationResult, BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Verify a user using biometric authentication

fn delete_biometric_template<'life0, 'life1, 'async_trait>( &'life0 self, _biometric_type: BiometricType, _template_id: Option<&'life1 str>, ) -> Pin<Box<dyn Future<Output = Result<(), BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete an enrolled biometric template

fn list_enrolled_templates<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<(String, BiometricType, f32)>, BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

List enrolled biometric templates

fn test_biometric_hardware<'life0, 'async_trait>( &'life0 self, _biometric_type: BiometricType, ) -> Pin<Box<dyn Future<Output = Result<bool, BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Test biometric hardware functionality

fn configure_biometric_security<'life0, 'async_trait>( &'life0 self, _config: BiometricConfig, ) -> Pin<Box<dyn Future<Output = Result<(), BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Configure biometric security settings

fn get_biometric_statistics<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<BiometricStatistics, BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Get biometric authentication statistics

fn cancel_biometric_operation<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<(), BiometricError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Cancel any ongoing biometric operation

impl Debug for FallbackBiometricHandler

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FallbackBiometricHandler

fn default() -> Self

Returns the “default value” for a type.