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<?php
/**
* @copyright Copyright (c) 2016 Lukas Reschke <lukas@statuscode.ch>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\User_SAML;
use OCP\AppFramework\Http;
use OCP\IConfig;
use OCP\IRequest;
use OCP\ISession;
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use OCP\IURLGenerator;
use OneLogin\Saml2\Constants;
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class SAMLSettings {
/** @var IURLGenerator */
private $urlGenerator;
/** @var IConfig */
private $config;
/** @var IRequest */
private $request;
/** @var ISession */
private $session;
/** @var array list of global settings which are valid for every idp */
private $globalSettings = ['general-require_provisioned_account', 'general-allow_multiple_user_back_ends', 'general-use_saml_auth_for_desktop'];
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/**
* @param IURLGenerator $urlGenerator
* @param IConfig $config
* @param IRequest $request
* @param ISession $session
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*/
public function __construct(IURLGenerator $urlGenerator,
IConfig $config,
IRequest $request,
ISession $session) {
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$this->urlGenerator = $urlGenerator;
$this->config = $config;
$this->request = $request;
$this->session = $session;
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}
/**
* get list of the configured IDPs
*
* @return array
*/
public function getListOfIdps() {
$result = [];
$providerIds = explode(',', $this->config->getAppValue('user_saml', 'providerIds', '1'));
natsort($providerIds);
foreach ($providerIds as $id) {
$prefix = $id === '1' ? '' : $id .'-';
$result[$id] = $this->config->getAppValue('user_saml', $prefix . 'general-idp0_display_name', '');
}
asort($result);
return $result;
}
/**
* check if multiple user back ends are allowed
*
* @return bool
*/
public function allowMultipleUserBackEnds() {
$type = $this->config->getAppValue('user_saml', 'type');
$setting = $this->config->getAppValue('user_saml', 'general-allow_multiple_user_back_ends', '0');
return ($setting === '1' && $type === 'saml');
}
public function usesSloWebServerDecode() : bool {
return $this->config->getAppValue('user_saml', 'security-sloWebServerDecode', '0') === '1';
}
/**
* get config for given IDP
*
* @param int $idp
* @return array
*/
public function getOneLoginSettingsArray($idp) {
$prefix = '';
if ($idp > 1) {
$prefix = $idp . '-';
}
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$settings = [
'strict' => true,
'debug' => $this->config->getSystemValue('debug', false),
'baseurl' => $this->urlGenerator->linkToRouteAbsolute('user_saml.SAML.base'),
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'security' => [
'nameIdEncrypted' => ($this->config->getAppValue('user_saml', $prefix . 'security-nameIdEncrypted', '0') === '1') ? true : false,
'authnRequestsSigned' => ($this->config->getAppValue('user_saml', $prefix . 'security-authnRequestsSigned', '0') === '1') ? true : false,
'logoutRequestSigned' => ($this->config->getAppValue('user_saml', $prefix . 'security-logoutRequestSigned', '0') === '1') ? true : false,
'logoutResponseSigned' => ($this->config->getAppValue('user_saml', $prefix . 'security-logoutResponseSigned', '0') === '1') ? true : false,
'signMetadata' => ($this->config->getAppValue('user_saml', $prefix . 'security-signMetadata', '0') === '1') ? true : false,
'wantMessagesSigned' => ($this->config->getAppValue('user_saml', $prefix . 'security-wantMessagesSigned', '0') === '1') ? true : false,
'wantAssertionsSigned' => ($this->config->getAppValue('user_saml', $prefix . 'security-wantAssertionsSigned', '0') === '1') ? true : false,
'wantAssertionsEncrypted' => ($this->config->getAppValue('user_saml', $prefix . 'security-wantAssertionsEncrypted', '0') === '1') ? true : false,
'wantNameId' => ($this->config->getAppValue('user_saml', $prefix . 'security-wantNameId', '0') === '1') ? true : false,
'wantNameIdEncrypted' => ($this->config->getAppValue('user_saml', $prefix . 'security-wantNameIdEncrypted', '0') === '1') ? true : false,
'wantXMLValidation' => ($this->config->getAppValue('user_saml', $prefix . 'security-wantXMLValidation', '0') === '1') ? true : false,
'requestedAuthnContext' => false,
'lowercaseUrlencoding' => ($this->config->getAppValue('user_saml', $prefix . 'security-lowercaseUrlencoding', '0') === '1') ? true : false,
'signatureAlgorithm' => $this->config->getAppValue('user_saml', $prefix . 'security-signatureAlgorithm', null)
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],
'sp' => [
'entityId' => $this->urlGenerator->linkToRouteAbsolute('user_saml.SAML.getMetadata'),
'assertionConsumerService' => [
'url' => $this->urlGenerator->linkToRouteAbsolute('user_saml.SAML.assertionConsumerService'),
],
'NameIDFormat' => $this->config->getAppValue('user_saml', $prefix . 'sp-name-id-format', Constants::NAMEID_UNSPECIFIED)
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],
'idp' => [
'entityId' => $this->config->getAppValue('user_saml', $prefix . 'idp-entityId', ''),
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'singleSignOnService' => [
'url' => $this->config->getAppValue('user_saml', $prefix . 'idp-singleSignOnService.url', ''),
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],
],
];
$spx509cert = $this->config->getAppValue('user_saml', $prefix . 'sp-x509cert', '');
$spxprivateKey = $this->config->getAppValue('user_saml', $prefix . 'sp-privateKey', '');
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if($spx509cert !== '') {
$settings['sp']['x509cert'] = $spx509cert;
}
if($spxprivateKey !== '') {
$settings['sp']['privateKey'] = $spxprivateKey;
}
$idpx509cert = $this->config->getAppValue('user_saml', $prefix . 'idp-x509cert', '');
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if($idpx509cert !== '') {
$settings['idp']['x509cert'] = $idpx509cert;
}
$slo = $this->config->getAppValue('user_saml', $prefix . 'idp-singleLogoutService.url', '');
if($slo !== '') {
$settings['idp']['singleLogoutService'] = [
'url' => $this->config->getAppValue('user_saml', $prefix . 'idp-singleLogoutService.url', ''),
];
$settings['sp']['singleLogoutService'] = [
'url' => $this->urlGenerator->linkToRouteAbsolute('user_saml.SAML.singleLogoutService'),
];
$sloResponseUrl = $this->config->getAppValue('user_saml', $prefix . 'idp-singleLogoutService.responseUrl', '');
if($sloResponseUrl !== '') {
$settings['idp']['singleLogoutService']['responseUrl'] = $sloResponseUrl;
}
}
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return $settings;
}
/**
* calculate prefix for config values
*
* @param string name of the setting
* @return string
*/
public function getPrefix($setting = '') {
$prefix = '';
if (!empty($setting) && in_array($setting, $this->globalSettings)) {
return $prefix;
}
$idp = $this->session->get('user_saml.Idp');
if ((int)$idp > 1) {
$prefix = $idp . '-';
}
return $prefix;
}
}