From c53d8d026021f97075fb2f4940ba22793c38fb6e Mon Sep 17 00:00:00 2001 From: davehauenstein Date: Wed, 15 Apr 2009 22:06:42 +0000 Subject: added toolbar; functionality includes refresh button to get back to original page, print article, email a link to the article with a personal note git-svn-id: http://arc90labs-readability.googlecode.com/svn/trunk@31 d4e419ec-0920-11de-bbfd-a7c1bc4c261e --- lib/Zend/Validate/EmailAddress.php | 247 +++++++++++++++++++++++++++++++++++++ 1 file changed, 247 insertions(+) create mode 100644 lib/Zend/Validate/EmailAddress.php (limited to 'lib/Zend/Validate/EmailAddress.php') diff --git a/lib/Zend/Validate/EmailAddress.php b/lib/Zend/Validate/EmailAddress.php new file mode 100644 index 0000000..82ed91b --- /dev/null +++ b/lib/Zend/Validate/EmailAddress.php @@ -0,0 +1,247 @@ + "'%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; + } + } +} -- cgit v1.2.3