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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 Postman_Zend_Validate
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id$
+ */
+
+/**
+ * @see Postman_Zend_Validate_Abstract
+ */
+// require_once 'Zend/Validate/Abstract.php';
+
+/**
+ * @see Postman_Zend_Validate_Hostname
+ */
+// require_once 'Zend/Validate/Hostname.php';
+
+/**
+ * @category Zend
+ * @package Postman_Zend_Validate
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Postman_Zend_Validate_EmailAddress extends Postman_Zend_Validate_Abstract
+{
+ const INVALID = 'emailAddressInvalid';
+ const INVALID_FORMAT = 'emailAddressInvalidFormat';
+ const INVALID_HOSTNAME = 'emailAddressInvalidHostname';
+ const INVALID_MX_RECORD = 'emailAddressInvalidMxRecord';
+ const INVALID_SEGMENT = 'emailAddressInvalidSegment';
+ const DOT_ATOM = 'emailAddressDotAtom';
+ const QUOTED_STRING = 'emailAddressQuotedString';
+ const INVALID_LOCAL_PART = 'emailAddressInvalidLocalPart';
+ const LENGTH_EXCEEDED = 'emailAddressLengthExceeded';
+
+ /**
+ * @var array
+ */
+ protected $_messageTemplates = array(
+ self::INVALID => "Invalid type given. String expected",
+ self::INVALID_FORMAT => "'%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::INVALID_SEGMENT => "'%hostname%' is not in a routable network segment. The email address '%value%' should not be resolved from public network",
+ self::DOT_ATOM => "'%localPart%' can not be matched against dot-atom format",
+ self::QUOTED_STRING => "'%localPart%' can not be 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",
+ );
+
+ /**
+ * As of RFC5753 (JAN 2010), the following blocks are no logner reserved:
+ * - 128.0.0.0/16
+ * - 191.255.0.0/16
+ * - 223.255.255.0/24
+ * @see http://tools.ietf.org/html/rfc5735#page-6
+ *
+ * As of RFC6598 (APR 2012), the following blocks are now reserved:
+ * - 100.64.0.0/10
+ * @see http://tools.ietf.org/html/rfc6598#section-7
+ *
+ * @see http://en.wikipedia.org/wiki/IPv4
+ * @var array
+ */
+ protected $_invalidIp = array(
+ '0' => '0.0.0.0/8',
+ '10' => '10.0.0.0/8',
+ '100' => '100.64.0.0/10',
+ '127' => '127.0.0.0/8',
+ '169' => '169.254.0.0/16',
+ '172' => '172.16.0.0/12',
+ '192' => array(
+ '192.0.0.0/24',
+ '192.0.2.0/24',
+ '192.88.99.0/24',
+ '192.168.0.0/16'
+ ),
+ '198' => '198.18.0.0/15',
+ '224' => '224.0.0.0/4',
+ '240' => '240.0.0.0/4'
+ );
+
+ /**
+ * @var array
+ */
+ protected $_messageVariables = array(
+ 'hostname' => '_hostname',
+ 'localPart' => '_localPart'
+ );
+
+ /**
+ * @var string
+ */
+ protected $_hostname;
+
+ /**
+ * @var string
+ */
+ protected $_localPart;
+
+ /**
+ * Internal options array
+ */
+ protected $_options = array(
+ 'mx' => false,
+ 'deep' => false,
+ 'domain' => true,
+ 'allow' => Postman_Zend_Validate_Hostname::ALLOW_DNS,
+ 'hostname' => null
+ );
+
+ /**
+ * Instantiates hostname validator for local use
+ *
+ * The following option keys are supported:
+ * 'hostname' => A hostname validator, see Postman_Zend_Validate_Hostname
+ * 'allow' => Options for the hostname validator, see Postman_Zend_Validate_Hostname::ALLOW_*
+ * 'mx' => If MX check should be enabled, boolean
+ * 'deep' => If a deep MX check should be done, boolean
+ *
+ * @param array|string|Postman_Zend_Config $options OPTIONAL
+ */
+ public function __construct($options = array())
+ {
+ if ($options instanceof Postman_Zend_Config) {
+ $options = $options->toArray();
+ } else if (!is_array($options)) {
+ $options = func_get_args();
+ $temp['allow'] = array_shift($options);
+ if (!empty($options)) {
+ $temp['mx'] = array_shift($options);
+ }
+
+ if (!empty($options)) {
+ $temp['hostname'] = array_shift($options);
+ }
+
+ $options = $temp;
+ }
+
+ $options += $this->_options;
+ $this->setOptions($options);
+ }
+
+ /**
+ * Returns all set Options
+ *
+ * @return array
+ */
+ public function getOptions()
+ {
+ return $this->_options;
+ }
+
+ /**
+ * Set options for the email validator
+ *
+ * @param array $options
+ * @return Postman_Zend_Validate_EmailAddress Provides a fluent inteface
+ */
+ public function setOptions(array $options = array())
+ {
+ if (array_key_exists('messages', $options)) {
+ $this->setMessages($options['messages']);
+ }
+
+ if (array_key_exists('hostname', $options)) {
+ if (array_key_exists('allow', $options)) {
+ $this->setHostnameValidator($options['hostname'], $options['allow']);
+ } else {
+ $this->setHostnameValidator($options['hostname']);
+ }
+ } elseif ($this->_options['hostname'] == null) {
+ $this->setHostnameValidator();
+ }
+
+ if (array_key_exists('mx', $options)) {
+ $this->setValidateMx($options['mx']);
+ }
+
+ if (array_key_exists('deep', $options)) {
+ $this->setDeepMxCheck($options['deep']);
+ }
+
+ if (array_key_exists('domain', $options)) {
+ $this->setDomainCheck($options['domain']);
+ }
+
+ return $this;
+ }
+
+ /**
+ * Sets the validation failure message template for a particular key
+ * Adds the ability to set messages to the attached hostname validator
+ *
+ * @param string $messageString
+ * @param string $messageKey OPTIONAL
+ * @return Postman_Zend_Validate_Abstract Provides a fluent interface
+ * @throws Postman_Zend_Validate_Exception
+ */
+ public function setMessage($messageString, $messageKey = null)
+ {
+ if ($messageKey === null) {
+ $this->_options['hostname']->setMessage($messageString);
+ parent::setMessage($messageString);
+ return $this;
+ }
+
+ if (!isset($this->_messageTemplates[$messageKey])) {
+ $this->_options['hostname']->setMessage($messageString, $messageKey);
+ }
+
+ $this->_messageTemplates[$messageKey] = $messageString;
+ return $this;
+ }
+
+ /**
+ * Returns the set hostname validator
+ *
+ * @return Postman_Zend_Validate_Hostname
+ */
+ public function getHostnameValidator()
+ {
+ return $this->_options['hostname'];
+ }
+
+ /**
+ * @param Postman_Zend_Validate_Hostname $hostnameValidator OPTIONAL
+ * @param int $allow OPTIONAL
+ * @return $this
+ */
+ public function setHostnameValidator(Postman_Zend_Validate_Hostname $hostnameValidator = null, $allow = Postman_Zend_Validate_Hostname::ALLOW_DNS)
+ {
+ if (!$hostnameValidator) {
+ $hostnameValidator = new Postman_Zend_Validate_Hostname($allow);
+ }
+
+ $this->_options['hostname'] = $hostnameValidator;
+ $this->_options['allow'] = $allow;
+ return $this;
+ }
+
+ /**
+ * Whether MX checking via getmxrr is supported or not
+ *
+ * This currently only works on UNIX systems
+ *
+ * @return boolean
+ */
+ public function validateMxSupported()
+ {
+ return function_exists('getmxrr');
+ }
+
+ /**
+ * Returns the set validateMx option
+ *
+ * @return boolean
+ */
+ public function getValidateMx()
+ {
+ return $this->_options['mx'];
+ }
+
+ /**
+ * Set whether we check for a valid MX record via DNS
+ *
+ * This only applies when DNS hostnames are validated
+ *
+ * @param boolean $mx Set allowed to true to validate for MX records, and false to not validate them
+ * @throws Postman_Zend_Validate_Exception
+ * @return Postman_Zend_Validate_EmailAddress Provides a fluent inteface
+ */
+ public function setValidateMx($mx)
+ {
+ if ((bool) $mx && !$this->validateMxSupported()) {
+ // require_once 'Zend/Validate/Exception.php';
+ throw new Postman_Zend_Validate_Exception('MX checking not available on this system');
+ }
+
+ $this->_options['mx'] = (bool) $mx;
+ return $this;
+ }
+
+ /**
+ * Returns the set deepMxCheck option
+ *
+ * @return boolean
+ */
+ public function getDeepMxCheck()
+ {
+ return $this->_options['deep'];
+ }
+
+ /**
+ * Set whether we check MX record should be a deep validation
+ *
+ * @param boolean $deep Set deep to true to perform a deep validation process for MX records
+ * @return Postman_Zend_Validate_EmailAddress Provides a fluent inteface
+ */
+ public function setDeepMxCheck($deep)
+ {
+ $this->_options['deep'] = (bool) $deep;
+ return $this;
+ }
+
+ /**
+ * Returns the set domainCheck option
+ *
+ * @return mixed
+ */
+ public function getDomainCheck()
+ {
+ return $this->_options['domain'];
+ }
+
+ /**
+ * Sets if the domain should also be checked
+ * or only the local part of the email address
+ *
+ * @param boolean $domain
+ * @return Postman_Zend_Validate_EmailAddress Provides a fluent inteface
+ */
+ public function setDomainCheck($domain = true)
+ {
+ $this->_options['domain'] = (boolean) $domain;
+ return $this;
+ }
+
+ /**
+ * Returns if the given host is reserved
+ *
+ * @param string $host
+ * @return boolean
+ */
+ private function _isReserved($host){
+ if (!preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $host)) {
+ $host = gethostbyname($host);
+ }
+
+ $octet = explode('.',$host);
+ if ((int)$octet[0] >= 224) {
+ return true;
+ } else if (array_key_exists($octet[0], $this->_invalidIp)) {
+ foreach ((array)$this->_invalidIp[$octet[0]] as $subnetData) {
+ // we skip the first loop as we already know that octet matches
+ for ($i = 1; $i < 4; $i++) {
+ if (strpos($subnetData, $octet[$i]) !== $i * 4) {
+ break;
+ }
+ }
+
+ $host = explode("/", $subnetData);
+ $binaryHost = "";
+ $tmp = explode(".", $host[0]);
+ for ($i = 0; $i < 4 ; $i++) {
+ $binaryHost .= str_pad(decbin($tmp[$i]), 8, "0", STR_PAD_LEFT);
+ }
+
+ $segmentData = array(
+ 'network' => (int)$this->_toIp(str_pad(substr($binaryHost, 0, $host[1]), 32, 0)),
+ 'broadcast' => (int)$this->_toIp(str_pad(substr($binaryHost, 0, $host[1]), 32, 1))
+ );
+
+ for ($j = $i; $j < 4; $j++) {
+ if ((int)$octet[$j] < $segmentData['network'][$j] ||
+ (int)$octet[$j] > $segmentData['broadcast'][$j]) {
+ return false;
+ }
+ }
+ }
+
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ /**
+ * Converts a binary string to an IP address
+ *
+ * @param string $binary
+ * @return mixed
+ */
+ private function _toIp($binary)
+ {
+ $ip = array();
+ $tmp = explode(".", chunk_split($binary, 8, "."));
+ for ($i = 0; $i < 4 ; $i++) {
+ $ip[$i] = bindec($tmp[$i]);
+ }
+
+ return $ip;
+ }
+
+ /**
+ * Internal method to validate the local part of the email address
+ *
+ * @return boolean
+ */
+ private function _validateLocalPart()
+ {
+ // First try to match the local part on the common dot-atom format
+ $result = false;
+
+ // Dot-atom characters are: 1*atext *("." 1*atext)
+ // atext: ALPHA / DIGIT / and "!", "#", "$", "%", "&", "'", "*",
+ // "+", "-", "/", "=", "?", "^", "_", "`", "{", "|", "}", "~"
+ $atext = 'a-zA-Z0-9\x21\x23\x24\x25\x26\x27\x2a\x2b\x2d\x2f\x3d\x3f\x5e\x5f\x60\x7b\x7c\x7d\x7e';
+ if (preg_match('/^[' . $atext . ']+(\x2e+[' . $atext . ']+)*$/', $this->_localPart)) {
+ $result = true;
+ } else {
+ // Try quoted string format (RFC 5321 Chapter 4.1.2)
+
+ // Quoted-string characters are: DQUOTE *(qtext/quoted-pair) DQUOTE
+ $qtext = '\x20-\x21\x23-\x5b\x5d-\x7e'; // %d32-33 / %d35-91 / %d93-126
+ $quotedPair = '\x20-\x7e'; // %d92 %d32-126
+ if (preg_match('/^"(['. $qtext .']|\x5c[' . $quotedPair . '])*"$/', $this->localPart)) {
+ $result = true;
+ } else {
+ $this->_error(self::DOT_ATOM);
+ $this->_error(self::QUOTED_STRING);
+ $this->_error(self::INVALID_LOCAL_PART);
+ }
+ }
+
+ return $result;
+ }
+
+ /**
+ * Internal method to validate the servers MX records
+ *
+ * @return boolean
+ */
+ private function _validateMXRecords()
+ {
+ $mxHosts = array();
+ $hostname = $this->_hostname;
+
+ //decode IDN domain name if possible
+ if (function_exists('idn_to_ascii')) {
+ $hostname = idn_to_ascii($this->_hostname);
+ }
+
+ $result = getmxrr($hostname, $mxHosts);
+ if (!$result) {
+ $this->_error(self::INVALID_MX_RECORD);
+ } else if ($this->_options['deep'] && function_exists('checkdnsrr')) {
+ $validAddress = false;
+ $reserved = true;
+ foreach ($mxHosts as $hostname) {
+ $res = $this->_isReserved($hostname);
+ if (!$res) {
+ $reserved = false;
+ }
+
+ if (!$res
+ && (checkdnsrr($hostname, "A")
+ || checkdnsrr($hostname, "AAAA")
+ || checkdnsrr($hostname, "A6"))) {
+ $validAddress = true;
+ break;
+ }
+ }
+
+ if (!$validAddress) {
+ $result = false;
+ if ($reserved) {
+ $this->_error(self::INVALID_SEGMENT);
+ } else {
+ $this->_error(self::INVALID_MX_RECORD);
+ }
+ }
+ }
+
+ return $result;
+ }
+
+ /**
+ * Internal method to validate the hostname part of the email address
+ *
+ * @return boolean
+ */
+ private function _validateHostnamePart()
+ {
+ $hostname = $this->_options['hostname']->setTranslator($this->getTranslator())
+ ->isValid($this->_hostname);
+ if (!$hostname) {
+ $this->_error(self::INVALID_HOSTNAME);
+
+ // Get messages and errors from hostnameValidator
+ foreach ($this->_options['hostname']->getMessages() as $code => $message) {
+ $this->_messages[$code] = $message;
+ }
+
+ foreach ($this->_options['hostname']->getErrors() as $error) {
+ $this->_errors[] = $error;
+ }
+ } else if ($this->_options['mx']) {
+ // MX check on hostname
+ $hostname = $this->_validateMXRecords();
+ }
+
+ return $hostname;
+ }
+
+ /**
+ * Defined by Postman_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)
+ {
+ if (!is_string($value)) {
+ $this->_error(self::INVALID);
+ return false;
+ }
+
+ $matches = array();
+ $length = true;
+ $this->_setValue($value);
+
+ // Split email address up and disallow '..'
+ if ((strpos($value, '..') !== false) or
+ (!preg_match('/^(.+)@([^@]+)$/', $value, $matches))) {
+ $this->_error(self::INVALID_FORMAT);
+ return false;
+ }
+
+ $this->_localPart = $matches[1];
+ $this->_hostname = $matches[2];
+
+ if ((strlen($this->_localPart) > 64) || (strlen($this->_hostname) > 255)) {
+ $length = false;
+ $this->_error(self::LENGTH_EXCEEDED);
+ }
+
+ // Match hostname part
+ if ($this->_options['domain']) {
+ $hostname = $this->_validateHostnamePart();
+ }
+
+ $local = $this->_validateLocalPart();
+
+ // If both parts valid, return true
+ if ($local && $length) {
+ if (($this->_options['domain'] && $hostname) || !$this->_options['domain']) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+}
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