pvv-nixos-config/hosts/bekkalokk/services/idp-simplesamlphp/authpwauth.php

135 lines
5.1 KiB
PHP

<?php
/**
* Authenticate using HTTP login.
*
* @author Yorn de Jong
* @package simpleSAMLphp
*/
namespace SimpleSAML\Module\authpwauth\Auth\Source;
class PwAuth extends \SimpleSAML\Module\core\Auth\UserPassBase
{
protected $pwauth_bin_path;
protected $mail_domain;
public function __construct(array $info, array &$config) {
assert('is_array($info)');
assert('is_array($config)');
/* Call the parent constructor first, as required by the interface. */
parent::__construct($info, $config);
$this->pwauth_bin_path = $config['pwauth_bin_path'];
if (array_key_exists('mail_domain', $config)) {
$this->mail_domain = '@' . ltrim($config['mail_domain'], '@');
}
}
public function login(string $username, string $password): array {
$username = strtolower( $username );
if (!file_exists($this->pwauth_bin_path)) {
die("Could not find pwauth binary");
return false;
}
if (!is_executable($this->pwauth_bin_path)) {
die("pwauth binary is not executable");
return false;
}
$handle = popen($this->pwauth_bin_path, 'w');
if ($handle === FALSE) {
die("Error opening pipe to pwauth");
return false;
}
$data = "$username\n$password\n";
if (fwrite($handle, $data) !== strlen($data)) {
die("Error writing to pwauth pipe");
return false;
}
# Is the password valid?
$result = pclose( $handle );
if ($result !== 0) {
if (!in_array($result, [1, 2, 3, 4, 5, 6, 7], true)) {
die("pwauth returned $result for username $username");
}
throw new \SimpleSAML\Error\Error('WRONGUSERPASS');
}
/*
$ldap = ldap_connect('129.241.210.159', 389);
ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_start_tls($ldap);
ldap_bind($ldap, 'passordendrer@pvv.ntnu.no', 'Oi7aekoh');
$search = ldap_search($ldap, 'DC=pvv,DC=ntnu,DC=no', '(sAMAccountName='.ldap_escape($username, '', LDAP_ESCAPE_FILTER).')');
$entry = ldap_first_entry($ldap, $search);
$dn = ldap_get_dn($ldap, $entry);
$newpassword = mb_convert_encoding("\"$password\"", 'UTF-16LE', 'UTF-8');
ldap_modify_batch($ldap, $dn, [
#[
# 'modtype' => LDAP_MODIFY_BATCH_REMOVE,
# 'attrib' => 'unicodePwd',
# 'values' => [$password],
#],
[
#'modtype' => LDAP_MODIFY_BATCH_ADD,
'modtype' => LDAP_MODIFY_BATCH_REPLACE,
'attrib' => 'unicodePwd',
'values' => [$newpassword],
],
]);
*/
#0 - Login OK.
#1 - Nonexistant login or (for some configurations) incorrect password.
#2 - Incorrect password (for some configurations).
#3 - Uid number is below MIN_UNIX_UID value configured in config.h.
#4 - Login ID has expired.
#5 - Login's password has expired.
#6 - Logins to system have been turned off (usually by /etc/nologin file).
#7 - Limit on number of bad logins exceeded.
#50 - pwauth was not run with real uid SERVER_UID. If you get this
# this error code, you probably have SERVER_UID set incorrectly
# in pwauth's config.h file.
#51 - pwauth was not given a login & password to check. The means
# the passing of data from mod_auth_external to pwauth is messed
# up. Most likely one is trying to pass data via environment
# variables, while the other is trying to pass data via a pipe.
#52 - one of several possible internal errors occured.
$uid = $username;
# TODO: Reinstate this code once passwd is working...
/*
$cn = trim(shell_exec('getent passwd '.escapeshellarg($uid).' | cut -d: -f5 | cut -d, -f1'));
$groups = preg_split('_\\s_', shell_exec('groups '.escapeshellarg($uid)));
array_shift($groups);
array_shift($groups);
array_pop($groups);
$info = posix_getpwnam($uid);
$group = $info['gid'];
if (!in_array($group, $groups)) {
$groups[] = $group;
}
*/
$cn = "Unknown McUnknown";
$groups = array();
$result = array(
'uid' => array($uid),
'cn' => array($cn),
'group' => $groups,
);
if (isset($this->mail_domain)) {
$result['mail'] = array($uid.$this->mail_domain);
}
return $result;
}
}