SubjectQuery.php

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<?php

namespace SAML2;

abstract class SubjectQuery extends Request
{
    private $nameId;


    protected function __construct($tagName, \DOMElement $xml = null)
    {
        parent::__construct($tagName, $xml);

        if ($xml === null) {
            return;
        }

        $this->parseSubject($xml);
    }


    private function parseSubject(\DOMElement $xml)
    {
        $subject = Utils::xpQuery($xml, './saml_assertion:Subject');
        if (empty($subject)) {
            /* No Subject node. */
            throw new \Exception('Missing subject in subject query.');
        } elseif (count($subject) > 1) {
            throw new \Exception('More than one <saml:Subject> in <saml:Assertion>.');
        }
        $subject = $subject[0];

        $nameId = Utils::xpQuery($subject, './saml_assertion:NameID');
        if (empty($nameId)) {
            throw new \Exception('Missing <saml:NameID> in <saml:Subject>.');
        } elseif (count($nameId) > 1) {
            throw new \Exception('More than one <saml:NameID> in <saml:Subject>.');
        }
        $nameId = $nameId[0];
        $this->nameId = new XML\saml\NameID($nameId);
    }


    public function getNameId()
    {
        return $this->nameId;
    }


    public function setNameId($nameId)
    {
        assert(is_array($nameId) || is_null($nameId) || $nameId instanceof XML\saml\NameID);

        if (is_array($nameId)) {
            $nameId = XML\saml\NameID::fromArray($nameId);
        }
        $this->nameId = $nameId;
    }


    public function toUnsignedXML()
    {
        $root = parent::toUnsignedXML();

        $subject = $root->ownerDocument->createElementNS(Constants::NS_SAML, 'saml:Subject');
        $root->appendChild($subject);

        $this->nameId->toXML($subject);

        return $root;
    }
}