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<?php |
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/* |
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* ***************************************************************************** |
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* Contributions to this work were made on behalf of the GÉANT project, a |
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* project that has received funding from the European Union’s Framework |
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* Programme 7 under Grant Agreements No. 238875 (GN3) and No. 605243 (GN3plus), |
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* Horizon 2020 research and innovation programme under Grant Agreements No. |
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* 691567 (GN4-1) and No. 731122 (GN4-2). |
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* On behalf of the aforementioned projects, GEANT Association is the sole owner |
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* of the copyright in all material which was developed by a member of the GÉANT |
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* project. GÉANT Vereniging (Association) is registered with the Chamber of |
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* Commerce in Amsterdam with registration number 40535155 and operates in the |
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* UK as a branch of GÉANT Vereniging. |
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* |
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* Registered office: Hoekenrode 3, 1102BR Amsterdam, The Netherlands. |
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* UK branch address: City House, 126-130 Hills Road, Cambridge CB2 1PQ, UK |
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* |
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* License: see the web/copyright.inc.php file in the file structure or |
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* <base_url>/copyright.php after deploying the software |
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*/ |
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namespace web\lib\admin; |
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use Exception; |
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/** |
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* This class handles admin user authentication. |
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* |
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* @author Stefan Winter <[email protected]> |
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*/ |
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class Authentication extends \core\common\Entity { |
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/** |
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* initialise ourselves, and simpleSAMLphp |
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*/ |
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public function __construct() { |
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parent::__construct(); |
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include_once \config\Master::AUTHENTICATION['ssp-path-to-autoloader']; |
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} |
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/** |
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* finds out whether the user is already authenticated. Does not trigger an authentication if not. |
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* |
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* @return boolean auth state |
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*/ |
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public function isAuthenticated() { |
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$authSimple = new \SimpleSAML\Auth\Simple(\config\Master::AUTHENTICATION['ssp-authsource']); |
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$session = \SimpleSAML\Session::getSessionFromRequest(); |
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$status = $authSimple->isAuthenticated(); |
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$session->cleanup(); |
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return $status; |
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} |
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/** |
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* authenticates a user. |
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* |
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* @return void |
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* @throws Exception |
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*/ |
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public function authenticate() { |
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\core\common\Entity::intoThePotatoes(); |
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$loggerInstance = new \core\common\Logging(); |
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$authSimple = new \SimpleSAML\Auth\Simple(\config\Master::AUTHENTICATION['ssp-authsource']); |
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if (!$authSimple->isAuthenticated()) { |
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$_SESSION['saveLog'] = true; |
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} |
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$authSimple->requireAuth(); |
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$admininfo = $authSimple->getAttributes(); |
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\core\common\Logging::debug_s(4, $admininfo, "SAML ATTR:\n", "\n"); |
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if (isset($_SESSION['saveLog']) && $_SESSION['saveLog'] == true) { |
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$saveLog = true; |
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} else { |
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$saveLog = false; |
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} |
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unset($_SESSION['saveLog']); |
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$session = \SimpleSAML\Session::getSessionFromRequest(); |
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$session->cleanup(); |
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if (!isset($admininfo[\config\Master::AUTHENTICATION['ssp-attrib-identifier']][0])) { |
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$failtext = "FATAL ERROR: we did not receive a unique user identifier from the authentication source!"; |
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echo $failtext; |
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throw new Exception($failtext); |
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} |
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$user = $admininfo[\config\Master::AUTHENTICATION['ssp-attrib-identifier']][0]; |
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if ($saveLog) { |
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$loggerInstance->debug(4, "Writing log\n"); |
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$this->logLoginTime($user); |
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} |
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$_SESSION['user'] = $user; |
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$_SESSION['name'] = $admininfo[\config\Master::AUTHENTICATION['ssp-attrib-name']][0] ?? _("Unnamed User"); |
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$_SESSION['auth_email'] = $admininfo[\config\Master::AUTHENTICATION['ssp-attrib-email']][0] ?? _(""); |
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if (isset($admininfo[\config\Master::AUTHENTICATION['ssp-entitlement']])) { |
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$_SESSION['entitlement'] = $admininfo[\config\Master::AUTHENTICATION['ssp-entitlement']]; |
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} |
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/* |
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* This is a nice pathological test case for a user ID. |
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* |
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* */ |
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//$_SESSION['user'] = "<saml:NameID xmlns:saml=\"urn:oasis:names:tc:SAML:2.0:assertion\" NameQualifier=\"https://idp.jisc.ac.uk/idp/shibboleth\" SPNameQualifier=\"https://cat-beta.govroam.uk/simplesaml/module.php/saml/sp/metadata.php/default-sp\" Format=\"urn:oasis:names:tc:SAML:2.0:nameid-format:persistent\">XXXXXXXXXXXXXXXX</saml:NameID>"; |
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$newNameReceived = FALSE; |
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$userObject = new \core\User($user); |
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$attribMapping = [ |
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"ssp-attrib-name" => "user:realname", |
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"ssp-attrib-email" => "user:email"]; |
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foreach ($attribMapping as $SSPside => $CATside) { |
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if (isset($admininfo[\config\Master::AUTHENTICATION[$SSPside]][0]) && (count($userObject->getAttributes($CATside)) == 0) && \config\Master::DB['USER']['readonly'] === FALSE) { |
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$name = $admininfo[\config\Master::AUTHENTICATION[$SSPside]][0]; |
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$userObject->addAttribute($CATside, NULL, $name); |
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$loggerInstance->writeAudit($_SESSION['user'], "NEW", "User - added $CATside from external auth source"); |
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if ($CATside == "user:realname") { |
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$newNameReceived = TRUE; |
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} |
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} |
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} |
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if (count($userObject->getAttributes('user:realname')) > 0 || $newNameReceived) { // we have a real name in the DB. We trust this more than a session one, so set it |
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$nameArray = $userObject->getAttributes("user:realname"); |
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if (!empty($nameArray[0])) { |
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$_SESSION['name'] = $nameArray[0]['value']; |
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} |
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} |
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\core\common\Entity::outOfThePotatoes(); |
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} |
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/** |
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* deauthenticates the user. |
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* Sends a SAML LogoutRequest to the IdP, which will kill the SSO session and return us to our own logout_check page. |
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* |
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* @return void |
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*/ |
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public function deauthenticate() { |
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$as = new \SimpleSAML\Auth\Simple(\config\Master::AUTHENTICATION['ssp-authsource']); |
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$servername = htmlspecialchars(strip_tags(filter_input(INPUT_SERVER, 'SERVER_NAME'))); |
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$scriptself = htmlspecialchars(strip_tags(filter_input(INPUT_SERVER, 'PHP_SELF'))); |
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$url = "https://www.eduroam.org"; // fallback if something goes wrong during URL construction below |
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$trailerPosition = strrpos($scriptself, "/inc/logout.php"); |
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if ($trailerPosition !== FALSE) { |
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$base = substr($scriptself, 0, $trailerPosition); |
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if ($base !== FALSE) { |
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$url = "//$servername" . $base . "/logout_check.php"; |
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} |
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} |
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$as->logout([ |
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'ReturnTo' => $url, |
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'ReturnStateParam' => 'LogoutState', |
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'ReturnStateStage' => 'MyLogoutState', |
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]); |
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} |
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private function logLoginTime($user) { |
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$handle = \core\DBConnection::handle("INST"); |
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if (!$handle instanceof \core\DBConnection) { |
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$frontendHandle = $handle; |
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} |
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$truncatedUser = substr($user,0,999); |
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$handle->exec("INSERT INTO admin_logins (user_id, last_login) VALUES ('$truncatedUser', NOW()) ON DUPLICATE KEY UPDATE last_login=NOW()"); |
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} |
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} |
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GEANT /
CAT
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