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<?php
declare(strict_types=1);
namespace SimpleSAML\Metadata;
use SimpleSAML\Configuration;
/**
* This class implements a metadata source which loads metadata from XML files.
* The XML files should be in the SAML 2.0 metadata format.
*
* @author Olav Morken, UNINETT AS.
* @package SimpleSAMLphp
*/
class MetaDataStorageHandlerXML extends MetaDataStorageSource
{
/**
* This variable contains an associative array with the parsed metadata.
*
* @var array
*/
private $metadata;
/**
* This function initializes the XML metadata source. The configuration must contain one of
* the following options:
* - 'file': Path to a file with the metadata. This path is relative to the SimpleSAMLphp
* base directory.
* - 'url': URL we should download the metadata from. This is only meant for testing.
*
* @param array $config The configuration for this instance of the XML metadata source.
*
* @throws \Exception If neither the 'file' or 'url' options are defined in the configuration.
*/
protected function __construct($config)
{
$src = $srcXml = null;
if (array_key_exists('file', $config)) {
// get the configuration
$globalConfig = Configuration::getInstance();
$src = $globalConfig->resolvePath($config['file']);
} elseif (array_key_exists('url', $config)) {
$src = $config['url'];
} elseif (array_key_exists('xml', $config)) {
$srcXml = $config['xml'];
} else {
throw new \Exception("Missing one of 'file', 'url' and 'xml' in XML metadata source configuration.");
}
$SP1x = [];
$IdP1x = [];
$SP20 = [];
$IdP20 = [];
$AAD = [];
if (isset($src)) {
$entities = SAMLParser::parseDescriptorsFile($src);
} elseif (isset($srcXml)) {
$entities = SAMLParser::parseDescriptorsString($srcXml);
} else {
throw new \Exception("Neither source file path/URI nor string data provided");
}
foreach ($entities as $entityId => $entity) {
$md = $entity->getMetadata1xSP();
if ($md !== null) {
$SP1x[$entityId] = $md;
}
$md = $entity->getMetadata1xIdP();
if ($md !== null) {
$IdP1x[$entityId] = $md;
}
$md = $entity->getMetadata20SP();
if ($md !== null) {
$SP20[$entityId] = $md;
}
$md = $entity->getMetadata20IdP();
if ($md !== null) {
$IdP20[$entityId] = $md;
}
$md = $entity->getAttributeAuthorities();
if (count($md) > 0) {
$AAD[$entityId] = $md[0];
}
}
$this->metadata = [
'shib13-sp-remote' => $SP1x,
'shib13-idp-remote' => $IdP1x,
'saml20-sp-remote' => $SP20,
'saml20-idp-remote' => $IdP20,
'attributeauthority-remote' => $AAD,
];
}
/**
* This function returns an associative array with metadata for all entities in the given set. The
* key of the array is the entity id.
*
* @param string $set The set we want to list metadata for.
*
* @return array An associative array with all entities in the given set.
*/
public function getMetadataSet($set)
{
if (array_key_exists($set, $this->metadata)) {
return $this->metadata[$set];
}
// we don't have this metadata set
return [];
}
}
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