Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

242 lines
7.5 KiB

#!/usr/bin/php
<?php
/*
* ejabberd extauth script for the integration with friendica
*
* Originally written for joomla by Dalibor Karlovic <dado@krizevci.info>
* modified for Friendica by Michael Vogel <icarus@dabo.de>
* published under GPL
*
* Latest version of the original script for joomla is available at:
* http://87.230.15.86/~dado/ejabberd/joomla-login
*
* Installation:
*
* - Change it's owner to whichever user is running the server, ie. ejabberd
* $ chown ejabberd:ejabberd /path/to/friendica/include/auth_ejabberd.php
*
* - Change the access mode so it is readable only to the user ejabberd and has exec
* $ chmod 700 /path/to/friendica/include/auth_ejabberd.php
*
* - Edit your ejabberd.cfg file, comment out your auth_method and add:
* {auth_method, external}.
* {extauth_program, "/path/to/friendica/include/auth_ejabberd.php"}.
*
* - Restart your ejabberd service, you should be able to login with your friendica auth info
*
* Other hints:
* - if your users have a space or a @ in their nickname, they'll run into trouble
* registering with any client so they should be instructed to replace these chars
* " " (space) is replaced with "%20"
* "@" is replaced with "(a)"
*
*/
if (sizeof($_SERVER["argv"]) == 0)
die();
$directory = dirname($_SERVER["argv"][0]);
if (substr($directory, 0, 1) != "/")
$directory = $_SERVER["PWD"]."/".$directory;
$directory = realpath($directory."/..");
chdir($directory);
require_once("boot.php");
global $a, $db;
if(is_null($a)) {
$a = new App;
}
if(is_null($db)) {
@include(".htconfig.php");
require_once("include/dba.php");
$db = new dba($db_host, $db_user, $db_pass, $db_data);
unset($db_host, $db_user, $db_pass, $db_data);
};
// the logfile to which to write, should be writeable by the user which is running the server
$sLogFile = get_config('jabber','logfile');
// set true to debug if needed
$bDebug = get_config('jabber','debug');
$oAuth = new exAuth($sLogFile, $bDebug);
class exAuth
{
private $sLogFile;
private $bDebug;
private $rLogFile;
public function __construct($sLogFile, $bDebug)
{
global $a, $db;
// setter
$this->sLogFile = $sLogFile;
$this->bDebug = $bDebug;
// ovo ne provjeravamo jer ako ne mozes kreirati log file, onda si u kvascu :)
if ($this->sLogFile != '')
$this->rLogFile = fopen($this->sLogFile, "a") or die("Error opening log file: ". $this->sLogFile);
$this->writeLog("[exAuth] start");
// ovdje bi trebali biti spojeni na MySQL, imati otvoren log i zavrtit cekalicu
do {
$iHeader = fgets(STDIN, 3);
$aLength = unpack("n", $iHeader);
$iLength = $aLength["1"];
if($iLength > 0) {
// ovo znaci da smo nesto dobili
$sData = fgets(STDIN, $iLength + 1);
$this->writeDebugLog("[debug] received data: ". $sData);
$aCommand = explode(":", $sData);
if (is_array($aCommand)){
switch ($aCommand[0]){
case "isuser":
// provjeravamo je li korisnik dobar
if (!isset($aCommand[1])){
$this->writeLog("[exAuth] invalid isuser command, no username given");
fwrite(STDOUT, pack("nn", 2, 0));
} else {
// ovdje provjeri je li korisnik OK
$sUser = str_replace(array("%20", "(a)"), array(" ", "@"), $aCommand[1]);
$this->writeDebugLog("[debug] checking isuser for ". $sUser);
$sQuery = "SELECT `uid` FROM `user` WHERE `nickname`='". $db->escape($sUser) ."'";
$this->writeDebugLog("[debug] using query ". $sQuery);
if ($oResult = q($sQuery)){
if ($oResult) {
// korisnik OK
$this->writeLog("[exAuth] valid user: ". $sUser);
fwrite(STDOUT, pack("nn", 2, 1));
} else {
// korisnik nije OK
$this->writeLog("[exAuth] invalid user: ". $sUser);
fwrite(STDOUT, pack("nn", 2, 0));
}
//$oResult->close();
} else {
$this->writeLog("[MySQL] invalid query: ". $sQuery);
fwrite(STDOUT, pack("nn", 2, 0));
}
}
break;
case "auth":
// provjeravamo autentifikaciju korisnika
if (sizeof($aCommand) != 4){
$this->writeLog("[exAuth] invalid auth command, data missing");
fwrite(STDOUT, pack("nn", 2, 0));
} else {
// ovdje provjeri prijavu
$sUser = str_replace(array("%20", "(a)"), array(" ", "@"), $aCommand[1]);
$this->writeDebugLog("[debug] doing auth for ".$sUser."@".$aCommand[2]);
// If the hostnames doesn't match, we try to authenticate remotely
if ($a->get_hostname() != $aCommand[2])
$Error = !$this->check_credentials($aCommand[2], $aCommand[1], $aCommand[3], true);
else {
//$sQuery = "SELECT `uid`, `password` FROM `user` WHERE `password`='".hash('whirlpool',$aCommand[3])."' AND `nickname`='". $db->escape($sUser) ."'";
$sQuery = "SELECT `uid`, `password` FROM `user` WHERE `nickname`='". $db->escape($sUser) ."'";
$this->writeDebugLog("[debug] using query ". $sQuery);
if ($oResult = q($sQuery)){
$uid = $oResult[0]["uid"];
$Error = ($oResult[0]["password"] != hash('whirlpool',$aCommand[3]));
} else {
$this->writeLog("[MySQL] invalid query: ". $sQuery);
$Error = true;
$uid = -1;
}
if ($Error) {
$oConfig = q("SELECT `v` FROM `pconfig` WHERE `uid`=%d AND `cat` = 'xmpp' AND `k`='password' LIMIT 1;", intval($uid));
$this->writeLog("[exAuth] got password ".$oConfig[0]["v"]);
$Error = ($aCommand[3] != $oConfig[0]["v"]);
}
}
if ($Error) {
$this->writeLog("[exAuth] authentification failed for user ". $sUser ."@". $aCommand[2]);
fwrite(STDOUT, pack("nn", 2, 0));
} else {
$this->writeLog("[exAuth] authentificated user ". $sUser ."@". $aCommand[2]);
fwrite(STDOUT, pack("nn", 2, 1));
}
}
break;
case "setpass":
// postavljanje zaporke, onemoguceno
$this->writeLog("[exAuth] setpass command disabled");
fwrite(STDOUT, pack("nn", 2, 0));
break;
default:
// ako je uhvaceno ista drugo
$this->writeLog("[exAuth] unknown command ". $aCommand[0]);
fwrite(STDOUT, pack("nn", 2, 0));
break;
}
} else {
$this->writeDebugLog("[debug] invalid command string");
fwrite(STDOUT, pack("nn", 2, 0));
}
}
unset ($iHeader);
unset ($aLength);
unset ($iLength);
unset($aCommand);
} while (true);
}
public function __destruct()
{
// zatvori log file
$this->writeLog("[exAuth] stop");
if (is_resource($this->rLogFile)){
fclose($this->rLogFile);
}
}
private function check_credentials($host, $user, $password, $ssl) {
$url = ($ssl ? "https":"http")."://".$host."/api/account/verify_credentials.json";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($ch, CURLOPT_USERPWD, $user.':'.$password);
$header = curl_exec($ch);
$curl_info = @curl_getinfo($ch);
$http_code = $curl_info["http_code"];
curl_close($ch);
return($http_code == 200);
}
private function writeLog($sMessage)
{
if (is_resource($this->rLogFile)) {
fwrite($this->rLogFile, date("r") ." ". $sMessage ."\n");
}
}
private function writeDebugLog($sMessage)
{
if ($this->bDebug){
$this->writeLog($sMessage);
}
}
}
?>