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<?php |
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/** |
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* This software package is licensed under AGPL or Commercial license. |
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* |
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* @package maslosoft/mangan |
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* @licence AGPL or Commercial |
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* @copyright Copyright (c) Piotr Masełkowski <[email protected]> |
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* @copyright Copyright (c) Maslosoft |
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* @copyright Copyright (c) Others as mentioned in code |
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* @link http://maslosoft.com/mangan/ |
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*/ |
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namespace Maslosoft\Mangan\Validators\BuiltIn; |
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use Maslosoft\Addendum\Interfaces\AnnotatedInterface; |
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use Maslosoft\Mangan\Interfaces\Validators\ValidatorInterface; |
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use Maslosoft\Mangan\Meta\ManganMeta; |
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/** |
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* EmailValidator |
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* |
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* @author Piotr Maselkowski <pmaselkowski at gmail.com> |
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*/ |
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class EmailValidator implements ValidatorInterface |
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{ |
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use \Maslosoft\Mangan\Validators\Traits\AllowEmpty, |
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\Maslosoft\Mangan\Validators\Traits\Messages, |
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\Maslosoft\Mangan\Validators\Traits\OnScenario, |
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\Maslosoft\Mangan\Validators\Traits\Safe; |
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/** |
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* @var string the regular expression used to validate the attribute value. |
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* @see http://www.regular-expressions.info/email.html |
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*/ |
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public $pattern = '/^[a-zA-Z0-9!#$%&\'*+\\/=?^_`{|}~-]+(?:\.[a-zA-Z0-9!#$%&\'*+\\/=?^_`{|}~-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$/'; |
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/** |
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* @var boolean whether to check the MX record for the email address. |
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* Defaults to false. To enable it, you need to make sure the PHP function 'checkdnsrr' |
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* exists in your PHP installation. |
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* Please note that this check may fail due to temporary problems even if email is deliverable. |
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*/ |
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public $checkMX = false; |
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/** |
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* @var boolean whether to check port 25 for the email address. |
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* Defaults to false. To enable it, ensure that the PHP functions 'dns_get_record' and |
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* 'fsockopen' are available in your PHP installation. |
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* Please note that this check may fail due to temporary problems even if email is deliverable. |
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*/ |
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public $checkPort = false; |
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/** |
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* @Label('{attribute} must be valid email address') |
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* @var string |
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*/ |
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public $msgValid = ''; |
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/** |
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* @Label('Email domain "{domain}" does not exists') |
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* @var string |
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*/ |
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public $msgDomain = ''; |
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/** |
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* @Label('Email service does not seem to be running at "{domain}"') |
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* @var string |
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*/ |
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public $msgPort = ''; |
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public function isValid(AnnotatedInterface $model, $attribute) |
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{ |
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if ($this->allowEmpty && empty($model->$attribute)) |
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{ |
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return true; |
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} |
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$label = ManganMeta::create($model)->field($attribute)->label; |
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if (!is_scalar($model->$attribute)) |
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{ |
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$this->addError('msgValid', ['{attribute}' => $label]); |
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return false; |
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} |
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$valid = filter_var($model->$attribute, FILTER_VALIDATE_EMAIL); |
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if (!$valid) |
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{ |
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$this->addError('msgValid', ['{attribute}' => $label]); |
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return false; |
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} |
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if (!preg_match($this->pattern, $model->$attribute)) |
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{ |
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$this->addError('msgValid', ['{attribute}' => $label]); |
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return false; |
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} |
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$domain = rtrim(substr($model->$attribute, strpos($model->$attribute, '@') + 1), '>'); |
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if ($this->checkMX) |
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{ |
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if (function_exists('checkdnsrr')) |
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{ |
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if (!checkdnsrr($domain, 'MX')) |
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{ |
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$this->addError('msgDomain', ['{domain}' => $domain]); |
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return false; |
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} |
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} |
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} |
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if ($this->checkPort) |
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{ |
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if ($this->checkMxPorts($domain)) |
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{ |
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$this->addError('msgPort', ['{domain}' => $domain]); |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Retrieves the list of MX records for $domain and checks if port 25 |
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* is opened on any of these. |
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* @param string $domain domain to be checked |
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* @return boolean true if a reachable MX server has been found |
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*/ |
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protected function checkMxPorts($domain) |
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{ |
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$records = dns_get_record($domain, DNS_MX); |
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if ($records === false || empty($records)) |
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{ |
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return false; |
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} |
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$sort = function ($a, $b) |
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{ |
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return $a['pri'] - $b['pri']; |
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}; |
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usort($records, $sort); |
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foreach ($records as $record) |
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{ |
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$errno = null; |
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$errstr = null; |
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$handle = @fsockopen($record['target'], 25, $errno, $errstr, 3); |
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if ($handle !== false) |
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{ |
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fclose($handle); |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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