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39c9179888
Add IdnEmail validation rule that converts IDN domains to Punycode via idn_to_ascii() before validating with FILTER_VALIDATE_EMAIL. Applied to all email fields: customers, members, profiles, admin users, customer portal profiles, and mail configuration. Includes unit tests for standard emails, IDN emails, and invalid inputs. Fixes #388
47 lines
1.1 KiB
PHP
47 lines
1.1 KiB
PHP
<?php
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namespace App\Rules;
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use Closure;
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use Illuminate\Contracts\Validation\ValidationRule;
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/**
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* Validates email addresses including those with internationalized
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* domain names (IDN) like user@münchen.de or michel@exempleé.fr.
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*
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* Converts the domain part to Punycode (ASCII) before validation.
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*/
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class IdnEmail implements ValidationRule
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{
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public function validate(string $attribute, mixed $value, Closure $fail): void
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{
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if (! is_string($value) || $value === '') {
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return;
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}
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$parts = explode('@', $value);
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if (count($parts) !== 2) {
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$fail('The :attribute must be a valid email address.');
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return;
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}
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[$local, $domain] = $parts;
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if (function_exists('idn_to_ascii') && $domain !== '') {
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$ascii = idn_to_ascii($domain, IDNA_DEFAULT, INTL_IDNA_VARIANT_UTS46);
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if ($ascii !== false) {
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$domain = $ascii;
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}
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}
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$normalized = $local.'@'.$domain;
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if (! filter_var($normalized, FILTER_VALIDATE_EMAIL)) {
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$fail('The :attribute must be a valid email address.');
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}
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}
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}
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