Differential D976 Diff 2413 src/app/Rules/ExternalEmail.php

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				<?php

				namespace App\Rules;

				use Illuminate\Contracts\Validation\Rule;
				use Illuminate\Support\Facades\Validator;

				class ExternalEmail implements Rule
				{
				private $message;

				/**
				* Determine if the validation rule passes.
				*
				* Email address validation with some more strict rules
				* than the default Laravel's 'email' rule
				*
				* @param string $attribute Attribute name
				* @param mixed $email Email address input
				*
				* @return bool
				*/
				public function passes($attribute, $email): bool
				{
				$v = Validator::make(['email' => $email], ['email' => 'required\|email']);

				if ($v->fails()) {
				$this->message = \trans('validation.emailinvalid');
				return false;
				}

				list($local, $domain) = explode('@', $email);

				// don't allow @localhost and other no-fqdn
				if (strpos($domain, '.') === false) {
				$this->message = \trans('validation.emailinvalid');
				return false;
				}

				return true;
				}

				/**
				* Get the validation error message.
				*
				* @return string
				*/
				public function message(): ?string
				{
				return $this->message;
				}
				}