AuthUsernameIdentifierPolicy class final

Strict policy for username canonicalization and email intent resolution.

Any input containing @ is treated exclusively as email intent. An invalid email therefore never falls back to the username namespace. Usernames can never contain @, even when a custom allowed-character expression would otherwise accept it.

Constructors

AuthUsernameIdentifierPolicy({AuthUsernameCaseCanonicalization caseCanonicalization = AuthUsernameCaseCanonicalization.lowercase, int minimumLength = 3, int maximumLength = 32, String allowedCharactersPattern = '[a-z0-9._-]', bool requireDottedEmailDomain = true})

Creates username and email validation rules.

Properties

allowedCharactersPattern → String

Regular-expression character class allowed in usernames.

final

caseCanonicalization → AuthUsernameCaseCanonicalization

Case transformation applied to usernames.

final

hashCode → int

The hash code for this object.

no setter, inherited

maximumLength → int

Maximum username length in Unicode code points.

final

minimumLength → int

Minimum username length in Unicode code points.

final

requireDottedEmailDomain → bool

Whether email domains must contain a dot-separated suffix.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

normalizeEmail(String input) → String?

Normalizes an email identifier, or returns null when it is invalid.

normalizeUsername(String input) → String?

Normalizes a username, or returns null when it is invalid.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

resolve(String input) → AuthUsernameIdentifier?

Resolves input into its unambiguous username or email namespace.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited