AttributeCopy.php

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<?php

class sspmod_core_Auth_Process_AttributeCopy extends SimpleSAML_Auth_ProcessingFilter {

        private $map = array();


        public function __construct($config, $reserved) {
                parent::__construct($config, $reserved);

                assert(is_array($config));

                foreach($config as $source => $destination) {

                        if(!is_string($source)) {
                                throw new Exception('Invalid source attribute name: ' . var_export($source, TRUE));
                        }

                        if(!is_string($destination) && !is_array($destination)) {
                                throw new Exception('Invalid destination attribute name: ' . var_export($destination, TRUE));
                        }

                        $this->map[$source] = $destination;
                }
        }


        public function process(&$request) {
                assert(is_array($request));
                assert(array_key_exists('Attributes', $request));

                $attributes =& $request['Attributes'];

                foreach($attributes as $name => $values) {
                        if (array_key_exists($name,$this->map)){
                                if (!is_array($this->map[$name])) {
                                        $attributes[$this->map[$name]] = $values;
                                } else {
                                        foreach ($this->map[$name] as $to_map) {
                                                $attributes[$to_map] = $values;
                                        }
                                }
                        }
                }

        }
}