From c6f50d04685de56e7530a73724cee6b17602f713 Mon Sep 17 00:00:00 2001 From: Michael Vogel Date: Thu, 22 Sep 2016 02:57:40 +0000 Subject: [PATCH] Reworked ejabberd authentification --- include/auth_ejabberd.php | 331 +++++++++++++++++++++++--------------- include/dba.php | 9 ++ 2 files changed, 214 insertions(+), 126 deletions(-) diff --git a/include/auth_ejabberd.php b/include/auth_ejabberd.php index 0be5db7760..9254fb804f 100755 --- a/include/auth_ejabberd.php +++ b/include/auth_ejabberd.php @@ -47,11 +47,10 @@ require_once("boot.php"); global $a, $db; -if(is_null($a)) { +if (is_null($a)) $a = new App; -} -if(is_null($db)) { +if (is_null($db)) { @include(".htconfig.php"); require_once("include/dba.php"); $db = new dba($db_host, $db_user, $db_pass, $db_data); @@ -66,142 +65,206 @@ $bDebug = get_config('jabber','debug'); $oAuth = new exAuth($sLogFile, $bDebug); -class exAuth -{ +class exAuth { private $sLogFile; private $bDebug; private $rLogFile; - public function __construct($sLogFile, $bDebug) - { - global $a, $db; + /** + * @brief Create the class and do the authentification studd + * + * @param string $sLogFile The logfile name + * @param boolean $bDebug Debug mode + */ + public function __construct($sLogFile, $bDebug) { + global $db; // setter $this->sLogFile = $sLogFile; $this->bDebug = $bDebug; - // ovo ne provjeravamo jer ako ne mozes kreirati log file, onda si u kvascu :) + // Open the logfile if the logfile name is defined if ($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 + // We are connected to the SQL server and are having a log file. 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 { - $this->writeDebugLog("[debug] invalid command string"); - fwrite(STDOUT, pack("nn", 2, 0)); - } + // Quit if the database connection went down + if (!$db->connected()) { + $this->writeDebugLog("[debug] the database connection went down"); + return; + } + + $iHeader = fgets(STDIN, 3); + $aLength = unpack("n", $iHeader); + $iLength = $aLength["1"]; + + // No data? Then quit + if ($iLength == 0) { + $this->writeDebugLog("[debug] we got no data"); + return; + } + + // Fetching the data + $sData = fgets(STDIN, $iLength + 1); + $this->writeDebugLog("[debug] received data: ". $sData); + $aCommand = explode(":", $sData); + if (is_array($aCommand)) { + switch ($aCommand[0]) { + case "isuser": + // Check the existance of a given username + $this->isuser($aCommand); + break; + case "auth": + // Check if the givven password is correct + $this->auth($aCommand); + break; + case "setpass": + // We don't accept the setting of passwords here + $this->writeLog("[exAuth] setpass command disabled"); + fwrite(STDOUT, pack("nn", 2, 0)); + break; + default: + // We don't know the given command + $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"); + /** + * @brief Check if the given username exists + * + * @param string $aCommand The command string + */ + private function isuser($aCommand) { + global $a; - if (is_resource($this->rLogFile)){ - fclose($this->rLogFile); + // Check if there is a username + if (!isset($aCommand[1])) { + $this->writeLog("[exAuth] invalid isuser command, no username given"); + fwrite(STDOUT, pack("nn", 2, 0)); + } else { + // Now we check if the given user is valid + $sUser = str_replace(array("%20", "(a)"), array(" ", "@"), $aCommand[1]); + $this->writeDebugLog("[debug] checking isuser for ". $sUser."@".$aCommand[2]); + + // If the hostnames doesn't match, we try to check remotely + if ($a->get_hostname() != $aCommand[2]) + $found = $this->check_user($aCommand[2], $aCommand[1], true); + else { + $sQuery = "SELECT `uid` FROM `user` WHERE `nickname`='".dbesc($sUser)."'"; + $this->writeDebugLog("[debug] using query ". $sQuery); + $r = q($sQuery); + $found = dbm::is_result($r); + } + if ($found) { + // The user is okay + $this->writeLog("[exAuth] valid user: ". $sUser); + fwrite(STDOUT, pack("nn", 2, 1)); + } else { + // The user isn't okay + $this->writeLog("[exAuth] invalid user: ". $sUser); + fwrite(STDOUT, pack("nn", 2, 0)); + } } } + /** + * @brief Check remote user existance via HTTP(S) + * + * @param string $host The hostname + * @param string $user Username + * @param boolean $ssl Should the check be done via SSL? + * + * @return boolean Was the user found? + */ + private function check_user($host, $user, $ssl) { + + $url = ($ssl ? "https":"http")."://".$host."/noscrape/".$user; + + $data = z_fetch_url($url); + + if (!is_array($data)) + return(false); + + if ($data["return_code"] != "200") + return(false); + + $json = @json_decode($data["body"]); + if (!is_object($json)) + return(false); + + return($json->nick == $user); + } + + /** + * @brief Authenticate the givven user and password + * + * @param string $aCommand The command string + */ + private function auth($aCommand) { + global $a; + + // check user authentication + if (sizeof($aCommand) != 4) { + $this->writeLog("[exAuth] invalid auth command, data missing"); + fwrite(STDOUT, pack("nn", 2, 0)); + } else { + // We now check if the password match + $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 { + $sQuery = "SELECT `uid`, `password` FROM `user` WHERE `nickname`='".dbesc($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)); + } + } + } + + /** + * @brief Check remote credentials via HTTP(S) + * + * @param string $host The hostname + * @param string $user Username + * @param string $password Password + * @param boolean $ssl Should the check be done via SSL? + * + * @return boolean Are the credentials okay? + */ private function check_credentials($host, $user, $password, $ssl) { + $this->writeDebugLog("[debug] check credentials for user ".$user." on ".$host); $url = ($ssl ? "https":"http")."://".$host."/api/account/verify_credentials.json"; @@ -219,24 +282,40 @@ class exAuth $http_code = $curl_info["http_code"]; curl_close($ch); - return($http_code == 200); + $this->writeDebugLog("[debug] got HTTP code ".$http_code); + + return ($http_code == 200); } - private function writeLog($sMessage) - { - if (is_resource($this->rLogFile)) { - fwrite($this->rLogFile, date("r") ." ". $sMessage ."\n"); - } + /** + * @brief write data to the logfile + * + * @param string $sMessage The logfile message + */ + private function writeLog($sMessage) { + if (is_resource($this->rLogFile)) + fwrite($this->rLogFile, date("r")." ".$sMessage."\n"); } - private function writeDebugLog($sMessage) - { - if ($this->bDebug){ + /** + * @brief write debug data to the logfile + * + * @param string $sMessage The logfile message + */ + private function writeDebugLog($sMessage) { + if ($this->bDebug) $this->writeLog($sMessage); - } } + /** + * @brief destroy the class + */ + public function __destruct() { + // close the log file + $this->writeLog("[exAuth] stop"); + + if (is_resource($this->rLogFile)) + fclose($this->rLogFile); + } } ?> - - diff --git a/include/dba.php b/include/dba.php index 5e84b95df5..97f6c87956 100644 --- a/include/dba.php +++ b/include/dba.php @@ -249,6 +249,15 @@ class dba { } } + function connected() { + if ($this->mysqli) + $connected = $this->db->ping(); + else + $connected = mysql_ping($this->db); + + return $connected; + } + function __destruct() { if ($this->db) if($this->mysqli)