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vendor/workerman/validation/library/Rules/Email.php

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+<?php
+
+/*
+ * This file is part of Respect/Validation.
+ *
+ * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
+ *
+ * For the full copyright and license information, please view the LICENSE file
+ * that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Respect\Validation\Rules;
+
+use Egulias\EmailValidator\EmailValidator;
+use Egulias\EmailValidator\Validation\RFCValidation;
+
+use function class_exists;
+use function filter_var;
+use function is_string;
+
+use const FILTER_VALIDATE_EMAIL;
+
+/**
+ * Validates an email address.
+ *
+ * @author Andrey Kolyshkin <a.kolyshkin@semrush.com>
+ * @author Eduardo Gulias Davis <me@egulias.com>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ * @author Paul Karikari <paulkarikari1@gmail.com>
+ */
+final class Email extends AbstractRule
+{
+    /**
+     * @var EmailValidator|null
+     */
+    private $validator;
+
+    /**
+     * Initializes the rule assigning the EmailValidator instance.
+     *
+     * If the EmailValidator instance is not defined, tries to create one.
+     */
+    public function __construct(?EmailValidator $validator = null)
+    {
+        $this->validator = $validator ?: $this->createEmailValidator();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($input): bool
+    {
+        if (!is_string($input)) {
+            return false;
+        }
+
+        if ($this->validator !== null) {
+            return $this->validator->isValid($input, new RFCValidation());
+        }
+
+        return (bool) filter_var($input, FILTER_VALIDATE_EMAIL);
+    }
+
+    private function createEmailValidator(): ?EmailValidator
+    {
+        if (class_exists(EmailValidator::class)) {
+            return new EmailValidator();
+        }
+
+        return null;
+    }
+}