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<?php
/**
* Class representing a ds:KeyInfo element.
*
* @package simpleSAMLphp
* @version $Id$
*/
class SAML2_XML_ds_KeyInfo {
/**
* The Id attribute on this element.
*
* @var string|NULL
*/
public $Id = NULL;
/**
* The various key information elements.
*
* Array with various elements describing this key.
* Unknown elements will be represented by SAML2_XML_Chunk.
*
* @var array
*/
public $info = array();
/**
* Initialize a KeyInfo element.
*
* @param DOMElement|NULL $xml The XML element we should load.
*/
public function __construct(DOMElement $xml = NULL) {
if ($xml === NULL) {
return;
}
if ($xml->hasAttribute('Id')) {
$this->Id = $xml->getAttribute('Id');
}
for ($n = $xml->firstChild; $n !== NULL; $n = $n->nextSibling) {
if (!($n instanceof DOMElement)) {
continue;
}
if ($n->namespaceURI !== XMLSecurityDSig::XMLDSIGNS) {
$this->info[] = new SAML2_XML_Chunk($n);
continue;
}
switch ($n->localName) {
case 'KeyName':
$this->info[] = new SAML2_XML_ds_KeyName($n);
break;
case 'X509Data':
$this->info[] = new SAML2_XML_ds_X509Data($n);
break;
default:
$this->info[] = new SAML2_XML_Chunk($n);
break;
}
}
}
/**
* Convert this KeyInfo to XML.
*
* @param DOMElement $parent The element we should append this KeyInfo to.
*/
public function toXML(DOMElement $parent) {
assert('is_null($this->Id) || is_string($this->Id)');
assert('is_array($this->info)');
$doc = $parent->ownerDocument;
$e = $doc->createElementNS(XMLSecurityDSig::XMLDSIGNS, 'ds:KeyInfo');
$parent->appendChild($e);
if (isset($this->Id)) {
$e->setAttribute('Id', $this->Id);
}
foreach ($this->info as $n) {
$n->toXML($e);
}
return $e;
}
}
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