MetaDataStorageHandlerFlatFile.php

Go to the documentation of this file.

<?php


class SimpleSAML_Metadata_MetaDataStorageHandlerFlatFile extends SimpleSAML_Metadata_MetaDataStorageSource
{

    private $directory;


    private $cachedMetadata = array();


    protected function __construct($config)
    {
        assert('is_array($config)');

        // get the configuration
        $globalConfig = SimpleSAML_Configuration::getInstance();

        // find the path to the directory we should search for metadata in
        if (array_key_exists('directory', $config)) {
            $this->directory = $config['directory'];
        } else {
            $this->directory = $globalConfig->getString('metadatadir', 'metadata/');
        }

        /* Resolve this directory relative to the SimpleSAMLphp directory (unless it is
         * an absolute path).
         */
        $this->directory = $globalConfig->resolvePath($this->directory).'/';
    }


    private function load($set)
    {
        $metadatasetfile = $this->directory.$set.'.php';

        if (!file_exists($metadatasetfile)) {
            return null;
        }

        $metadata = array();

        include($metadatasetfile);

        if (!is_array($metadata)) {
            throw new Exception('Could not load metadata set ['.$set.'] from file: '.$metadatasetfile);
        }

        return $metadata;
    }


    public function getMetadataSet($set)
    {
        if (array_key_exists($set, $this->cachedMetadata)) {
            return $this->cachedMetadata[$set];
        }

        $metadataSet = $this->load($set);
        if ($metadataSet === null) {
            $metadataSet = array();
        }

        // add the entity id of an entry to each entry in the metadata
        foreach ($metadataSet as $entityId => &$entry) {
            if (preg_match('/__DYNAMIC(:[0-9]+)?__/', $entityId)) {
                $entry['entityid'] = $this->generateDynamicHostedEntityID($set);
            } else {
                $entry['entityid'] = $entityId;
            }
        }

        $this->cachedMetadata[$set] = $metadataSet;

        return $metadataSet;
    }


    private function generateDynamicHostedEntityID($set)
    {
        // get the configuration
        $baseurl = \SimpleSAML\Utils\HTTP::getBaseURL();

        if ($set === 'saml20-idp-hosted') {
            return $baseurl.'saml2/idp/metadata.php';
        } elseif ($set === 'shib13-idp-hosted') {
            return $baseurl.'shib13/idp/metadata.php';
        } elseif ($set === 'wsfed-sp-hosted') {
            return 'urn:federation:'.\SimpleSAML\Utils\HTTP::getSelfHost();
        } elseif ($set === 'adfs-idp-hosted') {
            return 'urn:federation:'.\SimpleSAML\Utils\HTTP::getSelfHost().':idp';
        } else {
            throw new Exception('Can not generate dynamic EntityID for metadata of this type: ['.$set.']');
        }
    }
}