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1<?php
2
3/**
4 * Configuration loader for Multiple IdPs
5 *
6 * PHP version 8
7 *
8 * @category VuFind
9 * @package  Authentication
10 * @author   Vaclav Rosecky <vaclav.rosecky@mzk.cz>
11 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
12 * @link     https://vufind.org Main Page
13 */
14
15namespace VuFind\Auth\Shibboleth;
16
17use VuFind\Exception\Auth as AuthException;
18
19/**
20 * Configuration loader for Multiple IdPs
21 *
22 * @category VuFind
23 * @package  Authentication
24 * @author   Vaclav Rosecky <vaclav.rosecky@mzk.cz>
25 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
26 * @link     https://vufind.org Main Page
27 */
28class MultiIdPConfigurationLoader implements
29    ConfigurationLoaderInterface,
30    \Laminas\Log\LoggerAwareInterface
31{
32    use \VuFind\Log\LoggerAwareTrait;
33
34    /**
35     * Configured IdPs with entityId and overridden attribute mapping
36     *
37     * @var \Laminas\Config\Config
38     */
39    protected $config;
40
41    /**
42     * Configured IdPs with entityId and overridden attribute mapping
43     *
44     * @var \Laminas\Config\Config
45     */
46    protected $shibConfig;
47
48    /**
49     * Constructor
50     *
51     * @param \Laminas\Config\Config $config     Configuration
52     * @param \Laminas\Config\Config $shibConfig Shibboleth configuration for IdPs
53     */
54    public function __construct(
55        \Laminas\Config\Config $config,
56        \Laminas\Config\Config $shibConfig
57    ) {
58        $this->config = $config;
59        $this->shibConfig = $shibConfig;
60    }
61
62    /**
63     * Return shibboleth configuration.
64     *
65     * @param string $entityId entity Id
66     *
67     * @throws \VuFind\Exception\Auth
68     * @return array shibboleth configuration
69     */
70    public function getConfiguration($entityId)
71    {
72        $config = $this->config->Shibboleth->toArray();
73        $idpConfig = null;
74        $prefix = null;
75        foreach ($this->shibConfig as $name => $configuration) {
76            if ($entityId == trim($configuration['entityId'])) {
77                $idpConfig = $configuration->toArray();
78                $prefix = $name;
79                break;
80            }
81        }
82        if ($idpConfig == null) {
83            $this->debug(
84                "Missing configuration for Idp with entityId: {$entityId})"
85            );
86            throw new AuthException('Missing configuration for IdP.');
87        }
88        $config = array_merge($config, $idpConfig);
89        $config['prefix'] = $prefix;
90        return $config;
91    }
92}