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-rw-r--r--lib/Zend/Validate/EmailAddress.php247
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diff --git a/lib/Zend/Validate/EmailAddress.php b/lib/Zend/Validate/EmailAddress.php
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+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category Zend
+ * @package Zend_Validate
+ * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id: EmailAddress.php 13253 2008-12-14 20:28:06Z thomas $
+ */
+
+/**
+ * @see Zend_Validate_Abstract
+ */
+require_once 'Zend/Validate/Abstract.php';
+
+/**
+ * @see Zend_Validate_Hostname
+ */
+require_once 'Zend/Validate/Hostname.php';
+
+/**
+ * @category Zend
+ * @package Zend_Validate
+ * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Validate_EmailAddress extends Zend_Validate_Abstract
+{
+ const INVALID = 'emailAddressInvalid';
+ const INVALID_HOSTNAME = 'emailAddressInvalidHostname';
+ const INVALID_MX_RECORD = 'emailAddressInvalidMxRecord';
+ const DOT_ATOM = 'emailAddressDotAtom';
+ const QUOTED_STRING = 'emailAddressQuotedString';
+ const INVALID_LOCAL_PART = 'emailAddressInvalidLocalPart';
+ const LENGTH_EXCEEDED = 'emailAddressLengthExceeded';
+
+ /**
+ * @var array
+ */
+ protected $_messageTemplates = array(
+ self::INVALID => "'%value%' is not a valid email address in the basic format local-part@hostname",
+ self::INVALID_HOSTNAME => "'%hostname%' is not a valid hostname for email address '%value%'",
+ self::INVALID_MX_RECORD => "'%hostname%' does not appear to have a valid MX record for the email address '%value%'",
+ self::DOT_ATOM => "'%localPart%' not matched against dot-atom format",
+ self::QUOTED_STRING => "'%localPart%' not matched against quoted-string format",
+ self::INVALID_LOCAL_PART => "'%localPart%' is not a valid local part for email address '%value%'",
+ self::LENGTH_EXCEEDED => "'%value%' exceeds the allowed length"
+ );
+
+ /**
+ * @var array
+ */
+ protected $_messageVariables = array(
+ 'hostname' => '_hostname',
+ 'localPart' => '_localPart'
+ );
+
+ /**
+ * Local object for validating the hostname part of an email address
+ *
+ * @var Zend_Validate_Hostname
+ */
+ public $hostnameValidator;
+
+ /**
+ * Whether we check for a valid MX record via DNS
+ *
+ * @var boolean
+ */
+ protected $_validateMx = false;
+
+ /**
+ * @var string
+ */
+ protected $_hostname;
+
+ /**
+ * @var string
+ */
+ protected $_localPart;
+
+ /**
+ * Instantiates hostname validator for local use
+ *
+ * You can pass a bitfield to determine what types of hostnames are allowed.
+ * These bitfields are defined by the ALLOW_* constants in Zend_Validate_Hostname
+ * The default is to allow DNS hostnames only
+ *
+ * @param integer $allow OPTIONAL
+ * @param bool $validateMx OPTIONAL
+ * @param Zend_Validate_Hostname $hostnameValidator OPTIONAL
+ * @return void
+ */
+ public function __construct($allow = Zend_Validate_Hostname::ALLOW_DNS, $validateMx = false, Zend_Validate_Hostname $hostnameValidator = null)
+ {
+ $this->setValidateMx($validateMx);
+ $this->setHostnameValidator($hostnameValidator, $allow);
+ }
+
+ /**
+ * @param Zend_Validate_Hostname $hostnameValidator OPTIONAL
+ * @param int $allow OPTIONAL
+ * @return void
+ */
+ public function setHostnameValidator(Zend_Validate_Hostname $hostnameValidator = null, $allow = Zend_Validate_Hostname::ALLOW_DNS)
+ {
+ if ($hostnameValidator === null) {
+ $hostnameValidator = new Zend_Validate_Hostname($allow);
+ }
+ $this->hostnameValidator = $hostnameValidator;
+ }
+
+ /**
+ * Whether MX checking via dns_get_mx is supported or not
+ *
+ * This currently only works on UNIX systems
+ *
+ * @return boolean
+ */
+ public function validateMxSupported()
+ {
+ return function_exists('dns_get_mx');
+ }
+
+ /**
+ * Set whether we check for a valid MX record via DNS
+ *
+ * This only applies when DNS hostnames are validated
+ *
+ * @param boolean $allowed Set allowed to true to validate for MX records, and false to not validate them
+ */
+ public function setValidateMx($allowed)
+ {
+ $this->_validateMx = (bool) $allowed;
+ }
+
+ /**
+ * Defined by Zend_Validate_Interface
+ *
+ * Returns true if and only if $value is a valid email address
+ * according to RFC2822
+ *
+ * @link http://www.ietf.org/rfc/rfc2822.txt RFC2822
+ * @link http://www.columbia.edu/kermit/ascii.html US-ASCII characters
+ * @param string $value
+ * @return boolean
+ */
+ public function isValid($value)
+ {
+ $valueString = (string) $value;
+ $matches = array();
+ $length = true;
+
+ $this->_setValue($valueString);
+
+ // Split email address up and disallow '..'
+ if ((strpos($valueString, '..') !== false) or
+ (!preg_match('/^(.+)@([^@]+)$/', $valueString, $matches))) {
+ $this->_error(self::INVALID);
+ return false;
+ }
+
+ $this->_localPart = $matches[1];
+ $this->_hostname = $matches[2];
+
+ if ((strlen($this->_localPart) > 64) || (strlen($this->_hostname) > 255)) {
+ $length = false;
+ $this->_error(self::LENGTH_EXCEEDED);
+ }
+
+ // Match hostname part
+ $hostnameResult = $this->hostnameValidator->setTranslator($this->getTranslator())
+ ->isValid($this->_hostname);
+ if (!$hostnameResult) {
+ $this->_error(self::INVALID_HOSTNAME);
+
+ // Get messages and errors from hostnameValidator
+ foreach ($this->hostnameValidator->getMessages() as $code => $message) {
+ $this->_messages[$code] = $message;
+ }
+ foreach ($this->hostnameValidator->getErrors() as $error) {
+ $this->_errors[] = $error;
+ }
+ } else if ($this->_validateMx) {
+ // MX check on hostname via dns_get_record()
+ if ($this->validateMxSupported()) {
+ $result = dns_get_mx($this->_hostname, $mxHosts);
+ if (count($mxHosts) < 1) {
+ $hostnameResult = false;
+ $this->_error(self::INVALID_MX_RECORD);
+ }
+ } else {
+ /**
+ * MX checks are not supported by this system
+ * @see Zend_Validate_Exception
+ */
+ require_once 'Zend/Validate/Exception.php';
+ throw new Zend_Validate_Exception('Internal error: MX checking not available on this system');
+ }
+ }
+
+ // First try to match the local part on the common dot-atom format
+ $localResult = false;
+
+ // Dot-atom characters are: 1*atext *("." 1*atext)
+ // atext: ALPHA / DIGIT / and "!", "#", "$", "%", "&", "'", "*",
+ // "-", "/", "=", "?", "^", "_", "`", "{", "|", "}", "~"
+ $atext = 'a-zA-Z0-9\x21\x23\x24\x25\x26\x27\x2a\x2b\x2d\x2f\x3d\x3f\x5e\x5f\x60\x7b\x7c\x7d';
+ if (preg_match('/^[' . $atext . ']+(\x2e+[' . $atext . ']+)*$/', $this->_localPart)) {
+ $localResult = true;
+ } else {
+ // Try quoted string format
+
+ // Quoted-string characters are: DQUOTE *([FWS] qtext/quoted-pair) [FWS] DQUOTE
+ // qtext: Non white space controls, and the rest of the US-ASCII characters not
+ // including "\" or the quote character
+ $noWsCtl = '\x01-\x08\x0b\x0c\x0e-\x1f\x7f';
+ $qtext = $noWsCtl . '\x21\x23-\x5b\x5d-\x7e';
+ $ws = '\x20\x09';
+ if (preg_match('/^\x22([' . $ws . $qtext . '])*[$ws]?\x22$/', $this->_localPart)) {
+ $localResult = true;
+ } else {
+ $this->_error(self::DOT_ATOM);
+ $this->_error(self::QUOTED_STRING);
+ $this->_error(self::INVALID_LOCAL_PART);
+ }
+ }
+
+ // If both parts valid, return true
+ if ($localResult && $hostnameResult && $length) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+}
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