MadWizard\WebAuthn\Extension\ExtensionHelper::validExtensionIdentifier()

Complexity

Conditions	2
Paths	2

Size

Total Lines	10
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	0

<?php
    public static function validExtensionIdentifier(string $identifier): bool
    {
        // SPEC 9.1
        // All extension identifiers MUST be a maximum of 32 octets in length and MUST consist only of printable
        // USASCII characters, excluding backslash and doublequote, i.e., VCHAR as defined in [RFC5234] but without
        // %x22 and %x5c. Implementations MUST match WebAuthn extension identifiers in a case-sensitive fashion.
        if (strlen($identifier) > self::MAX_IDENTIFIER_LENGHT) {
            return false;
        }
        return (bool) preg_match('~^[\x21\x23-\x5B\x5D-\x7E]+$~', $identifier);
    }