129 lines
3.9 KiB
PHP
129 lines
3.9 KiB
PHP
<?php
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/**
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* @package Joomla.Platform
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* @subpackage Form
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Form Rule class for the Joomla Platform.
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*
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* @package Joomla.Platform
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* @subpackage Form
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* @since 11.1
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*/
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class JFormRuleEmail extends JFormRule
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{
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/**
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* The regular expression to use in testing a form field value.
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*
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* @var string
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* @since 11.1
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* @see http://www.w3.org/TR/html-markup/input.email.html
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*/
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protected $regex = '^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$';
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/**
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* Method to test the email address and optionally check for uniqueness.
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*
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* @param SimpleXMLElement $element The SimpleXMLElement object representing the <field /> tag for the form field object.
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* @param mixed $value The form field value to validate.
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* @param string $group The field name group control value. This acts as as an array container for the field.
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* For example if the field has name="foo" and the group value is set to "bar" then the
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* full field name would end up being "bar[foo]".
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* @param JRegistry $input An optional JRegistry object with the entire data set to validate against the entire form.
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* @param JForm $form The form object for which the field is being tested.
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*
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* @return boolean True if the value is valid, false otherwise.
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*
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* @since 11.1
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*/
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public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null)
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{
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// If the field is empty and not required, the field is valid.
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$required = ((string) $element['required'] == 'true' || (string) $element['required'] == 'required');
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if (!$required && empty($value))
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{
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return true;
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}
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// If the tld attribute is present, change the regular expression to require at least 2 characters for it.
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$tld = ((string) $element['tld'] == 'tld' || (string) $element['tld'] == 'required');
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if ($tld)
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{
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$this->regex = '^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]{2,})$';
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}
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// Determine if the multiple attribute is present
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$multiple = ((string) $element['multiple'] == 'true' || (string) $element['multiple'] == 'multiple');
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if ($multiple)
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{
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$values = explode(',', $value);
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}
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if (!$multiple)
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{
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// Handle idn e-mail addresses by converting to punycode.
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$value = JStringPunycode::emailToPunycode($value);
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// Test the value against the regular expression.
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if (!parent::test($element, $value, $group, $input, $form))
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{
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return false;
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}
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}
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else
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{
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foreach ($values as $value)
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{
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// Handle idn e-mail addresses by converting to punycode.
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$value = JStringPunycode::emailToPunycode($value);
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// Test the value against the regular expression.
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if (!parent::test($element, $value, $group, $input, $form))
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{
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return false;
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}
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}
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}
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// Check if we should test for uniqueness. This only can be used if multiple is not true
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$unique = ((string) $element['unique'] == 'true' || (string) $element['unique'] == 'unique');
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if ($unique && !$multiple)
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{
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// Get the database object and a new query object.
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$db = JFactory::getDbo();
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$query = $db->getQuery(true);
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// Build the query.
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$query->select('COUNT(*)')
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->from('#__users')
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->where('email = ' . $db->quote($value));
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// Get the extra field check attribute.
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$userId = ($form instanceof JForm) ? $form->getValue('id') : '';
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$query->where($db->quoteName('id') . ' <> ' . (int) $userId);
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// Set and query the database.
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$db->setQuery($query);
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$duplicate = (bool) $db->loadResult();
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if ($duplicate)
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{
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return false;
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}
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}
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return true;
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}
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}
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