AttributeNameID.php

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<?php
 
 
class sspmod_saml_Auth_Process_AttributeNameID extends sspmod_saml_BaseNameIDGenerator
{
 
    private $attribute;
 
 
    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'];
    }
 
 
    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.'
            );
            return null;
        }
        $value = array_values($state['Attributes'][$this->attribute]); // just in case the first index is no longer 0
        $value = $value[0];
 
        if (empty($value)) {
            SimpleSAML\Logger::warning(
                'Empty value in attribute '.var_export($this->attribute, true).
                ' on user - not generating persistent NameID.'
            );
            return null;
        }
 
        return $value;
    }
 
}