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<?php |
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namespace Validate; |
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use Exception; |
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use Validate\Traits\FakeNameTrait; |
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class Email implements \Validate\Contracts\Validate |
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{ |
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use FakeNameTrait; |
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protected $stream = false; |
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/** |
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* SMTP port number |
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* @var int |
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*/ |
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protected $port = 25; |
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/** |
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* Email address for request |
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* @var string |
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*/ |
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protected $from = 'root@localhost'; |
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/** |
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* The connection timeout, in seconds. |
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* @var int |
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*/ |
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protected $max_connection_timeout = 30; |
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/** |
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* Timeout value on stream, in seconds. |
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* @var int |
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*/ |
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protected $stream_timeout = 5; |
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/** |
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* Wait timeout on stream, in seconds. |
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* * 0 - not wait |
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* @var int |
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*/ |
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protected $stream_timeout_wait = 0; |
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/** |
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* Whether to throw exceptions for errors. |
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* @type boolean |
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* @access protected |
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*/ |
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protected $exceptions = false; |
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/** |
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* The number of errors encountered. |
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* @type integer |
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* @access protected |
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*/ |
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protected $error_count = 0; |
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/** |
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* class debug output mode. |
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* @type boolean |
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*/ |
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public $Debug = false; |
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/** |
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* How to handle debug output. |
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* Options: |
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* * `echo` Output plain-text as-is, appropriate for CLI |
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* * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output |
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* * `log` Output to error log as configured in php.ini |
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* @type string |
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*/ |
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public $Debugoutput = 'echo'; |
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/** |
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* SMTP RFC standard line ending. |
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*/ |
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const CRLF = "\r\n"; |
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/** |
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* Holds the most recent error message. |
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* @type string |
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*/ |
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public $ErrorInfo = ''; |
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/** |
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* Constructor. |
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* @param boolean $exceptions Should we throw external exceptions? |
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*/ |
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public function __construct($exceptions = false) { |
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$this->exceptions = (boolean) $exceptions; |
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} |
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public static function isSame(string $to, string $from) |
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{ |
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return (self::toDatabase($to)===self::toDatabase($from)); |
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} |
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/** |
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* Validate email address. |
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* @param string $email |
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* @return boolean True if valid. |
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*/ |
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public static function validate($email) |
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{ |
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if ((boolean) filter_var($email, FILTER_VALIDATE_EMAIL)===false){ |
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return false; |
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} |
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$emailAddresse = explode("@", trim($email)); |
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if (static::incluiInArray($emailAddresse[0], static::$notPermit)) { |
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return false; |
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} |
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if (static::incluiInArray($emailAddresse[0], static::$notPermitInFirst)) { |
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return false; |
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} |
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if (!checkdnsrr($emailAddresse[1], "MX")) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Break Email |
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*/ |
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public static function toDatabase($email) |
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{ |
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return $email; |
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} |
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/** |
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* Break Email |
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*/ |
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public static function toUser($email) |
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{ |
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return $email; |
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} |
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/** |
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* Break Email |
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*/ |
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public static function break($email) |
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{ |
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$email = explode('@', $email); |
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$data['address'] = $email[0]; |
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$data['domain'] = $email[1]; |
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return $data; |
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} |
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/** |
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* Set email address for SMTP request |
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* @param string $email Email address |
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*/ |
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public function setEmailFrom($email) { |
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if (!self::validate($email)) { |
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$this->set_error('Invalid address : ' . $email); |
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$this->edebug($this->ErrorInfo); |
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if ($this->exceptions) { |
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throw new Exception($this->ErrorInfo); |
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} |
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} |
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$this->from = $email; |
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} |
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/** |
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* Set connection timeout, in seconds. |
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* @param int $seconds |
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*/ |
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public function setConnectionTimeout($seconds) { |
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if ($seconds > 0) { |
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$this->max_connection_timeout = (int) $seconds; |
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} |
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} |
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/** |
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* Sets the timeout value on stream, expressed in the seconds |
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* @param int $seconds |
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*/ |
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public function setStreamTimeout($seconds) { |
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if ($seconds > 0) { |
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$this->stream_timeout = (int) $seconds; |
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} |
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} |
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public function setStreamTimeoutWait($seconds) { |
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if ($seconds >= 0) { |
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$this->stream_timeout_wait = (int) $seconds; |
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} |
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} |
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/** |
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* Get array of MX records for host. Sort by weight information. |
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* @param string $hostname The Internet host name. |
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* @return array Array of the MX records found. |
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*/ |
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public function getMXrecords($hostname) { |
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$mxhosts = array(); |
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$mxweights = array(); |
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if (getmxrr($hostname, $mxhosts, $mxweights) === FALSE) { |
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$this->set_error('MX records not found or an error occurred'); |
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$this->edebug($this->ErrorInfo); |
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} else { |
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array_multisort($mxweights, $mxhosts); |
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} |
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/** |
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* Add A-record as last chance (e.g. if no MX record is there). |
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* Thanks Nicht Lieb. |
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* @link http://www.faqs.org/rfcs/rfc2821.html RFC 2821 - Simple Mail Transfer Protocol |
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*/ |
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if (empty($mxhosts)) { |
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$mxhosts[] = $hostname; |
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} |
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return $mxhosts; |
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} |
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/** |
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* Parses input string to array(0=>user, 1=>domain) |
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* @param string $email |
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* @param boolean $only_domain |
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* @return string|array |
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* @access private |
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*/ |
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public static function parse_email($email, $only_domain = TRUE) { |
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sscanf($email, "%[^@]@%s", $user, $domain); |
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return ($only_domain) ? $domain : array($user, $domain); |
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} |
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/** |
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* Add an error message to the error container. |
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* @access protected |
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* @param string $msg |
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* @return void |
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*/ |
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protected function set_error($msg) { |
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$this->error_count++; |
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$this->ErrorInfo = $msg; |
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} |
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/** |
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* Check if an error occurred. |
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* @access public |
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* @return boolean True if an error did occur. |
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*/ |
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public function isError() { |
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return ($this->error_count > 0); |
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} |
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/** |
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* Output debugging info |
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* Only generates output if debug output is enabled |
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* @see verifyEmail::$Debugoutput |
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* @see verifyEmail::$Debug |
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* @param string $str |
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*/ |
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protected function edebug($str) { |
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if (!$this->Debug) { |
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return; |
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} |
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switch ($this->Debugoutput) { |
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case 'log': |
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//Don't output, just log |
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error_log($str); |
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break; |
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case 'html': |
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//Cleans up output a bit for a better looking, HTML-safe output |
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echo htmlentities( |
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preg_replace('/[\r\n]+/', '', $str), ENT_QUOTES, 'UTF-8' |
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) |
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. "<br>\n"; |
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break; |
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case 'echo': |
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default: |
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//Normalize line breaks |
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$str = preg_replace('/(\r\n|\r|\n)/ms', "\n", $str); |
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echo gmdate('Y-m-d H:i:s') . "\t" . str_replace( |
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"\n", "\n \t ", trim($str) |
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) . "\n"; |
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} |
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} |
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/** |
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* Validate email |
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* @param string $email Email address |
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* @return boolean True if the valid email also exist |
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*/ |
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public function check($email) { |
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$result = FALSE; |
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if (!self::validate($email)) { |
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$this->set_error("{$email} incorrect e-mail"); |
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$this->edebug($this->ErrorInfo); |
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if ($this->exceptions) { |
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throw new Exception($this->ErrorInfo); |
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} |
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return FALSE; |
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} |
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$this->error_count = 0; // Reset errors |
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$this->stream = FALSE; |
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$mxs = $this->getMXrecords(self::parse_email($email)); |
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$timeout = ceil($this->max_connection_timeout / count($mxs)); |
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foreach ($mxs as $host) { |
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/** |
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* suppress error output from stream socket client... |
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* Thanks Michael. |
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*/ |
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$this->stream = @stream_socket_client("tcp://" . $host . ":" . $this->port, $errno, $errstr, $timeout); |
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if ($this->stream === FALSE) { |
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if ($errno == 0) { |
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$this->set_error("Problem initializing the socket"); |
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$this->edebug($this->ErrorInfo); |
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if ($this->exceptions) { |
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throw new Exception($this->ErrorInfo); |
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} |
320
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return FALSE; |
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} else { |
322
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$this->edebug($host . ":" . $errstr); |
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} |
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} else { |
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stream_set_timeout($this->stream, $this->stream_timeout); |
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stream_set_blocking($this->stream, 1); |
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328
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if ($this->_streamCode($this->_streamResponse()) == '220') { |
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$this->edebug("Connection success {$host}"); |
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break; |
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} else { |
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fclose($this->stream); |
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$this->stream = FALSE; |
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} |
335
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} |
336
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} |
337
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338
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if ($this->stream === FALSE) { |
339
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$this->set_error("All connection fails"); |
340
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$this->edebug($this->ErrorInfo); |
341
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if ($this->exceptions) { |
342
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throw new Exception($this->ErrorInfo); |
343
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} |
344
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return FALSE; |
345
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} |
346
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347
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$this->_streamQuery("HELO " . self::parse_email($this->from)); |
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348
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$this->_streamResponse(); |
349
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$this->_streamQuery("MAIL FROM: <{$this->from}>"); |
350
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$this->_streamResponse(); |
351
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$this->_streamQuery("RCPT TO: <{$email}>"); |
352
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$code = $this->_streamCode($this->_streamResponse()); |
353
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$this->_streamResponse(); |
354
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$this->_streamQuery("RSET"); |
355
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$this->_streamResponse(); |
356
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$code2 = $this->_streamCode($this->_streamResponse()); |
357
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$this->_streamQuery("QUIT"); |
358
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fclose($this->stream); |
359
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360
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$code = !empty($code2)?$code2:$code; |
361
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switch ($code) { |
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case '250': |
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/** |
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* http://www.ietf.org/rfc/rfc0821.txt |
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* 250 Requested mail action okay, completed |
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* email address was accepted |
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*/ |
368
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case '450': |
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case '451': |
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case '452': |
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/** |
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* http://www.ietf.org/rfc/rfc0821.txt |
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* 450 Requested action not taken: the remote mail server |
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* does not want to accept mail from your server for |
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* some reason (IP address, blacklisting, etc..) |
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* Thanks Nicht Lieb. |
377
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* 451 Requested action aborted: local error in processing |
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* 452 Requested action not taken: insufficient system storage |
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* email address was greylisted (or some temporary error occured on the MTA) |
380
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* i believe that e-mail exists |
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*/ |
382
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return TRUE; |
383
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case '550': |
384
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return FALSE; |
385
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default : |
386
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return FALSE; |
387
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} |
388
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} |
389
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390
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|
/** |
391
|
|
|
* writes the contents of string to the file stream pointed to by handle |
392
|
|
|
* If an error occurs, returns FALSE. |
393
|
|
|
* @access protected |
394
|
|
|
* @param string $string The string that is to be written |
395
|
|
|
* @return string Returns a result code, as an integer. |
396
|
|
|
*/ |
397
|
|
|
protected function _streamQuery($query) { |
398
|
|
|
$this->edebug($query); |
399
|
|
|
return stream_socket_sendto($this->stream, $query . self::CRLF); |
|
|
|
|
400
|
|
|
} |
401
|
|
|
|
402
|
|
|
/** |
403
|
|
|
* Reads all the line long the answer and analyze it. |
404
|
|
|
* If an error occurs, returns FALSE |
405
|
|
|
* @access protected |
406
|
|
|
* @return string Response |
407
|
|
|
*/ |
408
|
|
|
protected function _streamResponse($timed = 0) { |
409
|
|
|
$reply = stream_get_line($this->stream, 1); |
|
|
|
|
410
|
|
|
$status = stream_get_meta_data($this->stream); |
|
|
|
|
411
|
|
|
|
412
|
|
|
if (!empty($status['timed_out'])) { |
413
|
|
|
$this->edebug("Timed out while waiting for data! (timeout {$this->stream_timeout} seconds)"); |
414
|
|
|
} |
415
|
|
|
|
416
|
|
|
if ($reply === FALSE && $status['timed_out'] && $timed < $this->stream_timeout_wait) { |
417
|
|
|
return $this->_streamResponse($timed + $this->stream_timeout); |
418
|
|
|
} |
419
|
|
|
|
420
|
|
|
|
421
|
|
|
if ($reply !== FALSE && $status['unread_bytes'] > 0) { |
422
|
|
|
$reply .= stream_get_line($this->stream, $status['unread_bytes'], self::CRLF); |
423
|
|
|
} |
424
|
|
|
$this->edebug($reply); |
425
|
|
|
return $reply; |
426
|
|
|
} |
427
|
|
|
|
428
|
|
|
/** |
429
|
|
|
* Get Response code from Response |
430
|
|
|
* @param string $str |
431
|
|
|
* @return string |
432
|
|
|
*/ |
433
|
|
|
protected function _streamCode($str) { |
434
|
|
|
preg_match('/^(?<code>[0-9]{3})(\s|-)(.*)$/ims', $str, $matches); |
435
|
|
|
$code = isset($matches['code']) ? $matches['code'] : false; |
436
|
|
|
return $code; |
|
|
|
|
437
|
|
|
} |
438
|
|
|
|
439
|
|
|
} |