<?php
/*
Plugin Name: SMF Bridge
Plugin URI:
http://code.google.com/p/wp-smf-bridge
Description: User registration and login bridge between Wordpress and Simple Machine Forum
Author: Jonathan "JonnyFunFun" Enzinna
Version: 0.3.1
Author URI:
http://www.jonnyfunfun.com/
*/
class smf_bridge {
static $bridge_active = false;
static $smf_dir = '';
static $reg_override = 0;
static $smf_dbopts = array();
static $smf_settings = array();
/* version
* @public
* Returns the current software version
*/
function version() { return 0.2; }
/* load
* @public
* Performs functions needed when we load, such as checking the configuration and
* including the necessary files for the API
*/
function load() {
if (get_option('smf_bridge_setup_complete') == 1) {
// Load the settings
self::$smf_dir = ABSPATH.get_option('smf_bridge_smfdir');
self::$reg_override = (get_option('smf_bridge_regoverride')) ? get_option('smf_bridge_regoverride') : 0;
if (file_exists(self::$smf_dir."Settings.php"))
require(self::$smf_dir."Settings.php");
else {
delete_option('smf_bridge_setup_complete');
return false;
}
if (!defined('SMF_API'))
require(dirname(__FILE__)."/smf_1-1_api.php");
self::$bridge_active = true;
self::$smf_dbopts['user'] = $db_user;
self::$smf_dbopts['pass'] = $db_passwd;
self::$smf_dbopts['host'] = $db_server;
self::$smf_dbopts['prefix'] = $db_prefix;
self::$smf_dbopts['name'] = $db_name;
self::$smf_settings = $smf_settings;
return true;
} else return false;
}
/* uservalid
* @public [filter]
* Checks to make sure the desired username during registration is not already
* taken by SMF
*/
function uservalid($valid,$username) {
if (!self::$bridge_active) return;
$uname = sanitize_user($username);
if (!$valid)
return false;
if ($uname != $username)
return false;
if (self::getSMFId($uname))
return false;
if (self::getSMFId(strtolower($uname)))
return false;
return true;
}
/* add_menu
* @public
* Add the admin menu link
*/
function add_menu() {
add_submenu_page('options-general.php','SMF Bridge Settings','SMF Bridge',8,__FILE__,array('smf_bridge','settings'));
}
/* settings
* @public
* Draws the settings page to change the bridge configuration
*/
function settings() {
$prev_active = self::$bridge_active;
echo '<div class="wrap"><h2>SMF Bridge Settings</h2></div>';
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
// Save settings
switch ($_POST['action']) {
case "save":
if (substr($_POST['smf_relpath'],-1) != '/')
$_POST['smf_relpath'] = $_POST['smf_relpath'].'/';
if (!get_option('smf_bridge_smfdir'))
add_option('smf_bridge_smfdir',$_POST['smf_relpath']);
else
update_option('smf_bridge_smfdir',$_POST['smf_relpath']);
// Double check the bridge dir before activating
if (file_exists(ABSPATH.get_option('smf_bridge_smfdir')))
add_option('smf_bridge_setup_complete',1);
else
delete_option('smf_bridge_setup_complete');
echo '<div id="message" class="updated fade">Settings saved!</div>';
break;
case "user-sync":
$x = self::syncusers();
echo '<div id="message" class="updated fade">'.$x.' Users Synchronized Successfully!</div>';
break;
}
self::load();
}
if (!self::$bridge_active) {
// Let them know we're not fully set up!
echo '<div id="message" class="updated fade">SMF Bridge has not been configured properly and is not active!</div>';
} elseif ((self::$bridge_active) && ($_SERVER['REQUEST_METHOD'] == "POST") && (!$prev_active)) {
echo '<div id="message" class="updated fade">SMF Bridge is now active!</div>';
}
if ((get_option('smf_bridge_smfdir')) && (!file_exists(ABSPATH.get_option('smf_bridge_smfdir').'Settings.php')))
echo '<div id="message" class="updated fade">Your SMF path is invalid - could not locate Settings.php in <em>'.ABSPATH.get_option('smf_bridge_smfdir').'</em></div>';
?>
<form action="<?=$_SERVER['REQUEST_URI']?>" method="POST">
<input type="hidden" name="action" value="save"/>
<table width="100%" cellspacing="2" cellpadding="5" class="editform">
<tr>
<th width="33%" scope="row" valign="top">Forum Path:<br />
<font style="font-size: 8px;"><em>URI relative to Wordpress root<br />
i.e - "forum/" places your forums in <?=ABSPATH?>forum/</em></font>
</th>
<td>
<input type="text" name="smf_relpath" value="<?=(get_option('smf_bridge_smfdir')) ? get_option('smf_bridge_smfdir') : ''?>" maxlength="256" style="width: 250px;"/>
</td>
</tr>
<tr><td colspan="2" style="height: 18px;"></td></tr>
<tr>
<td> </td>
<td>
<input type="submit" value="Save Settings"/>
</td>
</tr>
</table>
</form><br />
<legend><em>Maintenance Options</em></legend>
<table width="100%" cellspacing="2" cellpadding="5" class="editform">
<tr>
<th width="33%" valign="top" scope="row">Manual User Sync:</th>
<td>
<form action="<?=$_SERVER['REQUEST_URI']?>" method="POST">
<input type="hidden" name="action" value="user-sync"/>
<input type="submit" value="Synchronize Users"/>
</form>
</td>
<tr>
</table>
<?
}
/* login
* @public
* Occurs when a user logs in to WordPress, crowbars them in to SMF and syncs profiles for sanity
*/
function login() {
if (!self::$bridge_active) return;
if (!$_POST['wp-submit'] || $_POST['wp-submit'] != 'Log In') return;
//if (!is_user_logged_in()) return;
$user = get_userdatabylogin($_POST['log']);
if ($user) {
self::crowbar();
self::syncprofile($user->ID,true);
} else {
// update wordpress password if we exist
if (!$smf_cxn)
$smf_cxn = mysql_connect(self::$smf_dbopts['host'],self::$smf_dbopts['user'],self::$smf_dbopts['pass']) or trigger_error(mysql_error(),E_USER_ERROR);
$user_exists = $wpdb->get_row("SELECT id FROM $wpdb->users WHERE UPPER(user_login) = UPPER('". $_POST['log'] . "')");
if ($user_exists) {
$SQL = "SELECT passwd, passwordSalt FROM ".self::$smf_dbopts['prefix']."members WHERE UPPER(memberName) = UPPER('".$_POST['log']."')";
if (!$rs = mysql_query($SQL,$smf_cxn)) trigger_error(mysql_error(),E_USER_ERROR);
if (mysql_num_rows($rs) > 0) {
list($password,$salt) = mysql_fetch_array($rs, MYSQL_NUM);
if (sha1($_POST['pwd'].$sald) == $password) {
$newpass = wp_hash_password($_POST['pwd']);
$SQL = "UPDATE ".$wpdb->prefix."users SET user_pass='$newpass' WHERE UPPER(user_login)=UPPER('".$_POST['log']."') LIMIT 1";
}
}
} else {
self::syncusers();
$SQL = "SELECT passwd, passwordSalt FROM ".self::$smf_dbopts['prefix']."members WHERE UPPER(memberName) = UPPER('".$_POST['log']."')";
if (!$rs = mysql_query($SQL,$smf_cxn)) trigger_error(mysql_error(),E_USER_ERROR);
if (mysql_num_rows($rs) > 0) {
list($password,$salt) = mysql_fetch_array($rs, MYSQL_NUM);
if (sha1($_POST['pwd'].$sald) == $password) {
wp_update_user(array(
"user_login" => $_POST['log'],
"user_pass" => $_POST['pwd']
));
$tgt_user = get_userdatabylogin($_POST['log']);
if ($tgt_user) wp_set_current_user($tgt_user->ID,$tgt_user->user_login);
}
}
}
}
}
/* logout
* @public
* Occurs when a use logs out of WordPress, logs them out of SMF, too!
*/
function logout() {
if (!self::$bridge_active) return;
smf_sessionClose();
smf_setLoginCookie(0,$user->user_login,'',true);
}
/* register
* @public
* Occurs when a user registers on WordPress - this registers them with SMF
*/
function register($userID) {
if (!self::$bridge_active) return;
global $user_login,$user_email,$password;
$user_status = ($smf_settings['registration_method'] == 2) ? 3 : 1;
$user = get_userdata($userID);
if (!self::getSMFId($user->user_login))
smf_registerMember($user->user_login, $user->user_email, $user->user_password, $user_status);
return true;
}
/* syncprofile
* @public
* Synchronizes the user's profile information by WordPress userID
*/
function syncprofile($userID,$regularSync=false) {
if (!self::$bridge_active) return;
global $userdata,$smf_user_info;
get_currentuserinfo();
$user = get_userdata($userID);
$smfID = $smf_user_info['id'];
// Perform only a "regular" sync - just make sure everything coincides - TODO
if ($regularSync) {
}
// We obviously only want to force outbound (to SMF) sync if we're POST'ing
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if (!$smf_cxn)
$smf_cxn = mysql_connect(self::$smf_dbopts['host'],self::$smf_dbopts['user'],self::$smf_dbopts['pass']) or trigger_error(mysql_error(),E_USER_ERROR);
$pass = $_POST['pass1'];
$SQL = "SELECT passwd, passwordSalt FROM ".self::$smf_dbopts['prefix']."members WHERE UPPER(memberName) = UPPER('".$user->user_login."')";
if (!$rs = mysql_query($SQL,$smf_cxn)) trigger_error(mysql_error(),E_USER_ERROR);
if (mysql_num_rows($rs) > 0) {
list($password,$salt) = mysql_fetch_array($rs, MYSQL_NUM);
$pass = sha1($_POST['pass1'] . $salt);
}
$SQL = "UPDATE ".self::$smf_dbopts['prefix']."members SET websiteUrl='".addslashes($_POST['url'])."',
AIM='".addslashes($_POST['aim'])."', YIM='".addslashes($_POST['yim'])."',
passwd='".$pass."',emailAddress='".addslashes($_POST['email'])."', realName='".
addslashes($_POST['first_name'].' '.$_POST['last_name'])."',
signature='".addslashes($_POST['description'])."'
WHERE UPPER(memberName)=UPPER('$user->user_login') LIMIT 1";
mysql_query($SQL,$smf_cxn) or trigger_error(mysql_error(),E_USER_ERROR);
}
}
/* getSMFId
* @private
* Returns the member id from the SMF table based on username
*/
private function getSMFId($username) {
if (!self::$bridge_active) return;
$smf_cxn = mysql_connect(self::$smf_dbopts['host'],self::$smf_dbopts['user'],self::$smf_dbopts['pass']);
$SQL = "SELECT ID_MEMBER FROM ".self::$smf_dbopts['prefix']."members WHERE UPPER(memberName)=UPPER('$username') LIMIT 1";
if (!$rs = mysql_query($SQL,$smf_cxn)) {
trigger_error(mysql_error(),E_USER_WARNING);
return null;
} else {
return mysql_fetch_array($rs, MYSQL_ASSOC)->ID_MEMBER;
}
}
/* crowbar
* @private
* Performs the login 'crowbar' into SMF
*/
private function crowbar() {
if (!self::$bridge_active) return;
if (!is_user_logged_in()) return;
$user = wp_get_current_user();
// Fetch the password and salt so we can pass the encrypted guy to the
// cookie setting function...
$smf_cxn = mysql_connect(self::$smf_dbopts['host'],self::$smf_dbopts['user'],self::$smf_dbopts['pass']);
$SQL = "SELECT passwd, passwordSalt FROM ".self::$smf_dbopts['prefix']."members WHERE memberName = '".$user->user_login."'";
if (!$rs = mysql_query($SQL,$smf_cxn)) trigger_error(mysql_error(),E_USER_ERROR);
if (mysql_num_rows($rs) > 0) {
list($password,$salt) = mysql_fetch_array($rs, MYSQL_NUM);
$passwd = sha1($password . $salt);
} else {
// If we didn't find the user, perhaps we need to sync and try again?
if (self::syncusers() > 0)
self::crowbar();
return;
}
smf_setLoginCookie(21600,$user->user_login,passwd,true);
smf_authenticateUser();
}
/* syncusers
* @private
* Synchronizes all users across the two databases
*/
private function syncusers() {
global $wpdb;
if (!self::$bridge_active) return;
if (!function_exists('wp_update_user'))
include(ABSPATH.'/wp-includes/registration.php');
$smf_cxn = mysql_connect(self::$smf_dbopts['host'],self::$smf_dbopts['user'],self::$smf_dbopts['pass']);
$SQL = "SELECT UPPER(memberName) FROM ".self::$smf_dbopts['prefix']."members";
if (!$rs = mysql_query($SQL,$smf_cxn)) {
// Since this is not a critical step, we'll just throw a warning instead
// of bombing the entire app...
trigger_error(mysql_error(),E_USER_ERROR);
return;
}
$smf_users = array();
while ($row = mysql_fetch_array($rs,MYSQL_NUM))
array_push($smf_users,$row[0]);
$SQL = "SELECT UPPER(user_login) FROM ".$wpdb->prefix."users";
$wp_users = $wpdb->get_col($SQL);
if (sizeof($smf_users) == sizeof($wp_users))
return 0;
$sync_count = 0;
foreach ($wp_users as $usr) {
if (!in_array($usr,$smf_users)) {
// Sync this user to SMF!
$user_status = ($smf_settings['registration_method'] == 2) ? 3 : 1;
smf_registerMember($user->user_login, $user->user_email, $user->user_password, $user_status);
self::syncprofile($user->user_id, true);
++$sync_count;
}
}
foreach ($smf_users as $usr) {
if (!in_array($usr,$wp_users)) {
// Sync this user to WP!
$SQL = "SELECT emailAddress,realName FROM ".self::$smf_dbopts['prefix']."members WHERE UPPER(memberName)=UPPER('$usr') LIMIT 1";
if (!$rs = mysql_query($SQL,$smf_cxn)) {
// Since this is not a critical step, we'll just throw a warning instead
// of bombing the entire app...
trigger_error(mysql_error(),E_USER_ERROR);
return;
}
list($email,$name) = mysql_fetch_array($rs);
list($fname,$lname) = split(" ",$name);
$email_exists = $wpdb->get_row("SELECT user_email FROM ".$wpdb->users." WHERE user_email = '". $email . "'");
if (!$email_exists) {
// import the user since their e-mail doesn't exist
list($fname,$lname) = split(" ",$usr['realName']);
$user_id = wp_update_user(array(
"user_login" => $usr,
"first_name" => $fname,
"last_name" => $lname,
"user_email" => $email,
"user_pass" => md5(date('s').rand(100,999))//this doesn't work if we're not doing it on login, but it should pick it up when the user logs in
)
);
if ($user_id) ++$sync_count;
self::syncprofile($user_id, true);
}
}
}
return $sync_count;
}
/* checklogin
* @public
* Checks if a user is logged into SMF, and if they are, attempts to log them in to
* WordPress as well
*/
function checklogin() {
if (!self::$bridge_active) return;
global $smf_user_info,$scheme,$auth_cookie_name;
if (smf_authenticateUser()) {
if ($tgt_user = get_userdatabylogin($smf_user_info['username']) == false) {
// The user does not exist in the WP database - let's sync and try again
if (self::syncusers() > 0)
$tgt_user = get_userdatabylogin($smf_user_info['username']);
}
if ($user->ID) {
wp_set_current_user($tgt_user->ID,$tgt_user->user_login);
// And set a cookie just in case
$expiration = time() + 172800;
$cookie_data = $tgt_user->user_login . '|' . $expiration;
$key = wp_hash($tgt_user->user_login . '|' . $expiration,'logged_in');
$cookie_data .= hash_hmac('md5',$tgt_user->user_login . '|' . $expiration,$key);
$auth_cookie = wp_generate_auth_cookie($tgt_user->ID, $expiration);
$logged_in_cookie = wp_generate_auth_cookie($tgt_user->ID, $expiration, 'logged_in');
setcookie($auth_cookie_name, $auth_cookie, $expiration, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN);
setcookie($auth_cookie_name, $auth_cookie, $expiration, ADMIN_COOKIE_PATH, COOKIE_DOMAIN);
setcookie(LOGGED_IN_COOKIE, $cookie_data, $expiration, COOKIEPATH, COOKIE_DOMAIN);
smf_logOnline('WordPress');
self::syncprofile($tgt_user->ID,true);
}
} else {
self::login();
}
}
/* import_auth
* @public
* Syncs passwords on a login attempt both to and from WP - this is because SMF
* uses an entirely different method of storing passwords...
*/
function import_auth(&$user, &$pass) {
global $wpdb;
$wp_info = get_userdatabylogin($user);
if (!function_exists('smf_authenticate_password'))
self::load();
if (md5($pass) == $wp_info->user_pass AND $wp_info) {
// Sync the password into SMF if necessary
if (!smf_authenticate_password($user,$pass))
smf_ChangePassword($user, $pass);
} elseif (smf_authenticate_password($user,$pass) AND $wp_info) {
// Sync the password into WordPress
$SQL = $wpdb->prepare("UPDATE $wpdb->users SET user_pass = %s WHERE user_login = %s LIMIT 1",md5($pass),$user);
$wpdb->query($SQL);
} elseif (smf_authenticate_password($user,$pass)) {
// This user must not be in WP, let's sync users up and try again
if (self::syncusers() == 0) return;
self::import_auth($user,$pass);
}
}
}
if (!function_exists('add_action')) exit;
/* Associate the necessary action and filter hooks */
add_action('admin_menu',array('smf_bridge','add_menu'));
add_action('user_register',array('smf_bridge','register')); // Takes 1 argument, userID
add_action('profile_update',array('smf_bridge','syncprofile'));
add_action('personal_options_update',array('smf_bridge','syncprofile'));
add_action('plugins_loaded',array('smf_bridge','load'));
add_action('set_current_user',array('smf_bridge','checklogin'));
add_action('wp_authenticate',array('smf_bridge','import_auth'),1,2);
add_filter('validate_username',array('smf_bridge','uservalid'),10,2);
?>
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