web/enmi/Zend/Validate/EmailAddress.php
changeset 19 1c2f13fd785c
parent 0 4eba9c11703f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/enmi/Zend/Validate/EmailAddress.php	Thu Jan 20 19:30:54 2011 +0100
@@ -0,0 +1,560 @@
+<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: EmailAddress.php 22668 2010-07-25 14:50:46Z 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) 2005-2010 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_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 no valid email address in the basic format local-part@hostname",
+        self::INVALID_HOSTNAME   => "'%hostname%' is no 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 no valid local part for email address '%value%'",
+        self::LENGTH_EXCEEDED    => "'%value%' exceeds the allowed length",
+    );
+
+    /**
+     * @see http://en.wikipedia.org/wiki/IPv4
+     * @var array
+     */
+    protected $_invalidIp = array(
+        '0'   => '0.0.0.0/8',
+        '10'  => '10.0.0.0/8',
+        '127' => '127.0.0.0/8',
+        '128' => '128.0.0.0/16',
+        '169' => '169.254.0.0/16',
+        '172' => '172.16.0.0/12',
+        '191' => '191.255.0.0/16',
+        '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',
+        '223' => '223.255.255.0/24',
+        '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'    => Zend_Validate_Hostname::ALLOW_DNS,
+        'hostname' => null
+    );
+
+    /**
+     * Instantiates hostname validator for local use
+     *
+     * The following option keys are supported:
+     * 'hostname' => A hostname validator, see Zend_Validate_Hostname
+     * 'allow'    => Options for the hostname validator, see Zend_Validate_Hostname::ALLOW_*
+     * 'mx'       => If MX check should be enabled, boolean
+     * 'deep'     => If a deep MX check should be done, boolean
+     *
+     * @param array|Zend_Config $options OPTIONAL
+     * @return void
+     */
+    public function __construct($options = array())
+    {
+        if ($options instanceof 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 Zend_Validate_EmailAddress fluid interface
+     */
+    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']);
+            }
+        }
+
+        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 $messageKey     OPTIONAL
+     * @return Zend_Validate_Abstract Provides a fluent interface
+     * @throws Zend_Validate_Exception
+     */
+    public function setMessage($messageString, $messageKey = null)
+    {
+        $messageKeys = $messageKey;
+        if ($messageKey === null) {
+            $keys = array_keys($this->_messageTemplates);
+            $messageKeys = current($keys);
+        }
+
+        if (!isset($this->_messageTemplates[$messageKeys])) {
+            $this->_options['hostname']->setMessage($messageString, $messageKey);
+        }
+
+        $this->_messageTemplates[$messageKeys] = $messageString;
+        return $this;
+    }
+
+    /**
+     * Returns the set hostname validator
+     *
+     * @return Zend_Validate_Hostname
+     */
+    public function getHostnameValidator()
+    {
+        return $this->_options['hostname'];
+    }
+
+    /**
+     * @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) {
+            $hostnameValidator = new Zend_Validate_Hostname($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 $mx Set allowed to true to validate for MX records, and false to not validate them
+     * @return Zend_Validate_EmailAddress Fluid Interface
+     */
+    public function setValidateMx($mx)
+    {
+        if ((bool) $mx && !$this->validateMxSupported()) {
+            require_once 'Zend/Validate/Exception.php';
+            throw new 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 $deep Set deep to true to perform a deep validation process for MX records
+     * @return Zend_Validate_EmailAddress Fluid Interface
+     */
+    public function setDeepMxCheck($deep)
+    {
+        $this->_options['deep'] = (bool) $deep;
+        return $this;
+    }
+
+    /**
+     * Returns the set domainCheck option
+     *
+     * @return unknown
+     */
+    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 $domain
+     * @return Zend_Validate_EmailAddress Fluid Interface
+     */
+    public function setDomainCheck($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
+
+            // 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)) {
+                $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();
+        $result = getmxrr($this->_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 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;
+    }
+}