auth_pop3.php

<?php
/**
* POP3 authentication plugin for phpBB
*
* @package login
* @version $Id$
* @copyright (c) 2005 phpBB Group
* @copyright (c) 2009 Chris Smith
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/

/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
	exit;
}

/**
* Login function
*/
function login_pop3(&$username, &$password)
{
	global $db, $config;

	// do not allow empty password
	if (!$password)
	{
		return array(
			'status'	=> LOGIN_ERROR_PASSWORD,
			'error_msg'	=> 'NO_PASSWORD_SUPPLIED',
			'user_row'	=> array('user_id' => ANONYMOUS),
		);
	}

	if (!$username)
	{
		return array(
			'status'	=> LOGIN_ERROR_USERNAME,
			'error_msg'	=> 'LOGIN_ERROR_USERNAME',
			'user_row'	=> array('user_id' => ANONYMOUS),
		);
	}

	$host = $config['pop3_server'];
	$port = ((int) $config['pop3_port'] <= 0) ? 110 : (int) $config['pop3_port'];

	// Very rudimentary check to see if the username is an email address
	$email = $username . ((strpos($username, '@') === false) ? '@' . $config['pop3_domain'] : '');

	if (@extension_loaded('imap'))
	{
	//	$handle = imap_open("{". "$host:$port/service=pop3}", $username, $password);
		$handle = imap_open('{pop.ex.ac.uk/pop3}', $email, $password);

		if ($handle)
		{
			// Successful connection
			@imap_close($handle);

			$sql ='SELECT user_id, username, user_password, user_passchg, user_email, user_type
				FROM ' . USERS_TABLE . "
				WHERE username_clean = '" . $db->sql_escape(utf8_clean_string($username)) . "'";
			$result = $db->sql_query($sql);
			$row = $db->sql_fetchrow($result);
			$db->sql_freeresult($result);
echo $sql; die;
			if ($row)
			{
				// Successful login... set user_login_attempts to zero...
				return array(
					'status'		=> LOGIN_SUCCESS,
					'error_msg'		=> false,
					'user_row'		=> $row,
				);
			}
			else
			{
				// retrieve default group id
				$sql = 'SELECT group_id
					FROM ' . GROUPS_TABLE . "
					WHERE group_name = '" . $db->sql_escape('REGISTERED') . "'
						AND group_type = " . GROUP_SPECIAL;
				$result = $db->sql_query($sql);
				$row = $db->sql_fetchrow($result);
				$db->sql_freeresult($result);

				if (!$row)
				{
					trigger_error('NO_GROUP');
				}

				global $user;

				// generate user account data
				$user_row = array(
					'username'		=> $username,
					'user_password'	=> '',
					'user_email'	=> $email,
					'group_id'		=> (int) $row['group_id'],
					'user_type'		=> USER_NORMAL,
					'user_ip'		=> $user->ip,
				);

				// this is the user's first login so create an empty profile
				return array(
					'status'		=> LOGIN_SUCCESS_CREATE_PROFILE,
					'error_msg'		=> false,
					'user_row'		=> $user_row,
				);
			}
		}
		else
		{
			return array(
				'status'		=> LOGIN_ERROR_PASSWORD,
				'error_msg'		=> 'LOGIN_ERROR_PASSWORD',
				'user_row'		=> array('user_id' => ANONYMOUS),
			);
		}
	}
	else
	{
		// PHP Implementation
	}

	return array(
		'status'		=> LOGIN_ERROR_EXTERNAL_AUTH,
		'error_msg'		=> 'POP3_',
		'user_row'		=> array('user_id' => ANONYMOUS),
	);
}

/**
* This function is used to output any required fields in the authentication
* admin panel. It also defines any required configuration table fields.
*/
function acp_pop3(&$new)
{
	global $user;
$user->lang['POP3_SERVER'] = 'Server';
$user->lang['POP3_PORT'] = 'Port';
$user->lang['POP3_DOMAIN'] = 'Domain';
$user->lang['POP3_SERVER_EXPLAIN'] = $user->lang['POP3_PORT_EXPLAIN'] = $user->lang['POP3_DOMAIN_EXPLAIN'] = '';
	$tpl = '

	<dl>
		<dt><label for="pop3_server">' . $user->lang['POP3_SERVER'] . ':</label><br /><span>' . $user->lang['POP3_SERVER_EXPLAIN'] . '</span></dt>
		<dd><input type="text" id="pop3_server" size="40" name="config[pop3_server]" value="' . $new['pop3_server'] . '" /></dd>
	</dl>
	<dl>
		<dt><label for="pop3_port">' . $user->lang['POP3_PORT'] . ':</label><br /><span>' . $user->lang['POP3_PORT_EXPLAIN'] . '</span></dt>
		<dd><input type="text" id="pop3_port" size="40" name="config[pop3_port]" value="' . $new['pop3_port'] . '" /></dd>
	</dl>
	<dl>
		<dt><label for="pop3_domain">' . $user->lang['POP3_DOMAIN'] . ':</label><br /><span>' . $user->lang['POP3_DOMAIN_EXPLAIN'] . '</span></dt>
		<dd><input type="text" id="pop3_domain" size="40" name="config[pop3_domain]" value="' . $new['pop3_domain'] . '" /></dd>
	</dl>
	';

	// These are fields required in the config table
	return array(
		'tpl'		=> $tpl,
		'config'	=> array('pop3_server', 'pop3_port', 'pop3_domain')
	);
}