moodle/auth/nntp/auth.php

128 lines
3.1 KiB
PHP

<?php
/**
* @author Martin Dougiamas
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
* @package moodle multiauth
*
* Authentication Plugin: NNTP Authentication
*
* Authenticates against an NNTP server.
*
* 2006-08-31 File created.
*/
if (!defined('MOODLE_INTERNAL')) {
die('Direct access to this script is forbidden.'); /// It must be included from a Moodle page
}
require_once($CFG->libdir.'/authlib.php');
/**
* NNTP authentication plugin.
*/
class auth_plugin_nntp extends auth_plugin_base {
/**
* Constructor.
*/
function auth_plugin_nntp() {
$this->authtype = 'nntp';
$this->config = get_config('auth/nntp');
}
/**
* Returns true if the username and password work and false if they are
* wrong or don't exist.
*
* @param string $username The username
* @param string $password The password
* @return bool Authentication success or failure.
*/
function user_login ($username, $password) {
if (! function_exists('imap_open')) {
print_error('auth_nntpnotinstalled','auth_nntp');
exit;
}
global $CFG;
// try each multiple host
$hosts = explode(';', $this->config->host);
foreach ($hosts as $host) {
$host = '{' . trim($host) . ':' . $this->config->port . '/nntp}';
error_reporting(0);
$connection = imap_open($host, $username, $password, OP_HALFOPEN);
error_reporting($CFG->debug);
if ($connection) {
imap_close($connection);
return true;
}
}
return false;
}
function prevent_local_passwords() {
return true;
}
/**
* Returns true if this authentication plugin is 'internal'.
*
* @return bool
*/
function is_internal() {
return false;
}
/**
* Returns true if this authentication plugin can change the user's
* password.
*
* @return bool
*/
function can_change_password() {
return false;
}
/**
* Prints a form for configuring this authentication plugin.
*
* This function is called from admin/auth.php, and outputs a full page with
* a form for configuring this plugin.
*
* @param array $page An object containing all the data for this page.
*/
function config_form($config, $err, $user_fields) {
include "config.html";
}
/**
* Processes and stores configuration data for this authentication plugin.
*/
function process_config($config) {
// set to defaults if undefined
if (!isset ($config->host)) {
$config->host = '127.0.0.1';
}
if (!isset ($config->port)) {
$config->port = '119';
}
if (!isset($config->changepasswordurl)) {
$config->changepasswordurl = '';
}
// save settings
set_config('host', $config->host, 'auth/nntp');
set_config('port', $config->port, 'auth/nntp');
set_config('changepasswordurl', $config->changepasswordurl, 'auth/nntp');
return true;
}
}