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<?php
/**
* Filter to set and get language settings from attributes.
*
* @author Andreas Åkre Solberg, UNINETT AS.
* @package simpleSAMLphp
*/
class sspmod_core_Auth_Process_LanguageAdaptor extends SimpleSAML_Auth_ProcessingFilter {
private $langattr = 'preferredLanguage';
/**
* Initialize this filter.
*
* @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 (array_key_exists('attributename', $config)) {
$this->langattr = $config['attributename'];
}
}
/**
* Apply filter to add or replace attributes.
*
* Add or replace existing attributes with the configured values.
*
* @param array &$request The current request
*/
public function process(&$request) {
assert('is_array($request)');
assert('array_key_exists("Attributes", $request)');
$attributes =& $request['Attributes'];
$attrlang = NULL;
if (array_key_exists($this->langattr, $attributes))
$attrlang = $attributes[$this->langattr][0];
$lang = SimpleSAML_XHTML_Template::getLanguageCookie();
if (isset($attrlang))
SimpleSAML_Logger::debug('LanguageAdaptor: Language in attribute was set [' . $attrlang . ']');
if (isset($lang))
SimpleSAML_Logger::debug('LanguageAdaptor: Language in session was set [' . $lang . ']');
if (isset($attrlang) && !isset($lang)) {
/* Language set in attribute but not in cookie - update cookie. */
SimpleSAML_XHTML_Template::setLanguageCookie($attrlang);
} elseif (!isset($attrlang) && isset($lang)) {
/* Language set in cookie, but not in attribute. Update attribute. */
$request['Attributes'][$this->langattr] = array($lang);
}
}
}
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