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<?php |
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namespace SimpleSAML\Module\casserver\Cas\Protocol; |
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use SimpleSAML\Configuration; |
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use SimpleSAML\XML\Shib13\AuthnResponse; |
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class SamlValidateResponder |
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{ |
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/** |
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* Converts a ticket to saml1 response. Caller likely needs wrap in SOAP |
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* to return to a client. |
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* @param array $ticket The cas ticket |
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* @return string The saml 1 xml for the CAS response |
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*/ |
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public function convertToSaml(array $ticket) |
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{ |
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$serviceUrl = $ticket['service']; |
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$attributes = $ticket['attributes']; |
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$user = $ticket['userName']; |
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$ar = new AuthnResponse(); |
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$idpMetadata = [ |
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// CAS doesn't seem to care what this is, however SSP code requires it to be set |
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'entityid' => 'localhost' |
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]; |
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$spMetadata = [ |
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'entityid' => $serviceUrl, |
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]; |
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$shire = $serviceUrl; //the recpient |
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$authnResponseXML = $ar->generate( |
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Configuration::loadFromArray($idpMetadata), |
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Configuration::loadFromArray($spMetadata), |
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$shire, |
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$attributes |
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); |
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// replace NameIdentifier with actually username |
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$ret = preg_replace( |
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'|<NameIdentifier(.*)>.*</NameIdentifier>|', |
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'<NameIdentifier$1>' . htmlspecialchars($user) . '</NameIdentifier>', |
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$authnResponseXML |
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); |
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// CAS seems to prefer this type of assertiond |
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$ret = str_replace('urn:oasis:names:tc:SAML:1.0:cm:bearer', 'urn:oasis:names:tc:SAML:1.0:cm:artifact', $ret); |
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// CAS uses a different namespace for attributes |
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$ret = str_replace( |
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'urn:mace:shibboleth:1.0:attributeNamespace:uri', |
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'http://www.ja-sig.org/products/cas/', |
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$ret |
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); |
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return $ret; |
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} |
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public function wrapInSoap($samlResponse) |
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{ |
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$envelope = <<<SOAP |
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<?xml version="1.0" encoding="utf-8"?> |
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<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"> |
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<SOAP-ENV:Header /> |
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<SOAP-ENV:Body>$samlResponse</SOAP-ENV:Body> |
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</SOAP-ENV:Envelope> |
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SOAP; |
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return $envelope; |
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} |
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} |
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simplesamlphp /
simplesamlphp-module-casserver
