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<?php
/**
* Authproc filter to create a NameID from an attribute.
*
* @package simpleSAMLphp
*/
class sspmod_saml_Auth_Process_AttributeNameID extends sspmod_saml_BaseNameIDGenerator {
/**
* The attribute we should use as the NameID.
*
* @var string
*/
private $attribute;
/**
* Initialize this filter, parse configuration.
*
* @param array $config Configuration information about this filter.
* @param mixed $reserved For future use.
*/
public function __construct($config, $reserved) {
parent::__construct($config, $reserved);
assert('is_array($config)');
if (!isset($config['Format'])) {
throw new SimpleSAML_Error_Exception('AttributeNameID: Missing required option \'Format\'.');
}
$this->format = (string)$config['Format'];
if (!isset($config['attribute'])) {
throw new SimpleSAML_Error_Exception('AttributeNameID: Missing required option \'attribute\'.');
}
$this->attribute = (string)$config['attribute'];
}
/**
* Get the NameID value.
*
* @return string|NULL The NameID value.
*/
protected function getValue(array &$state) {
if (!isset($state['Attributes'][$this->attribute]) || count($state['Attributes'][$this->attribute]) === 0) {
SimpleSAML_Logger::warning('Missing attribute ' . var_export($this->attribute, TRUE) . ' on user - not generating attribute NameID.');
return NULL;
}
if (count($state['Attributes'][$this->attribute]) > 1) {
SimpleSAML_Logger::warning('More than one value in attribute ' . var_export($this->attribute, TRUE) . ' on user - not generating attribute NameID.');
}
$value = array_values($state['Attributes'][$this->attribute]); /* Just in case the first index is no longer 0. */
$value = $value[0];
return $value;
}
}
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