silverstripe-framework/Forms/EmailField.php

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<?php
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namespace SilverStripe\Forms;
/**
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* Text input field with validation for correct email format according to RFC 2822.
*/
class EmailField extends TextField {
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/**
* {@inheritdoc}
*/
public function Type() {
return 'email text';
}
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/**
* {@inheritdoc}
*/
public function getAttributes() {
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return array_merge(
parent::getAttributes(),
array(
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'type' => 'email',
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)
);
}
/**
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* Validates for RFC 2822 compliant email addresses.
*
* @see http://www.regular-expressions.info/email.html
* @see http://www.ietf.org/rfc/rfc2822.txt
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*
* @param Validator $validator
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*
* @return string
*/
public function validate($validator) {
$this->value = trim($this->value);
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$pattern = '^[a-z0-9!#$%&\'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&\'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$';
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// Escape delimiter characters.
$safePattern = str_replace('/', '\\/', $pattern);
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if($this->value && !preg_match('/' . $safePattern . '/i', $this->value)) {
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$validator->validationError(
$this->name,
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_t('EmailField.VALIDATION', 'Please enter an email address'),
'validation'
);
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return false;
}
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return true;
}
}