Send authentication log to the syslog

config.php

@@ -86,6 +86,15 @@
 ###############################################################################################################
 define("WATCHED_STATUS_FOR_ALL", false);
 $WATCH_STATUS_FOR_USERS = ["kodi", "mylogin"];
+###############################################################################################################
+# Send log to a syslog server
+# If SYSLOG_AUTHD_ENABLE is true, then all authentication log are send to a syslog server.
+# SYSLOG_AUTHD_HOST - Set Syslog's IP
+# SYSLOG_AUTHD_PORT - Set the UDP port
+###############################################################################################################
+define("SYSLOG_AUTHD_ENABLE", false);
+define("SYSLOG_AUTHD_HOST", "localhost");
+define("SYSLOG_AUTHD_PORT", "514");
 
 ###############################################################################################################
 # XBMC / Kodi tables definition

functions.php

@@ -91,6 +91,31 @@ function sessionStartSecurely(){
 	session_start();
 }
 
+/**
+  * Send authentication log to a syslog server
+*/
+
+function getClientIP(){
+	if (isset ($_SERVER['HTTP_X_FORWARDED_FOR'])){
+		return $_SERVER['HTTP_X_FORWARDED_FOR'];
+	} else {
+		return $_SERVER['REMOTE_ADDR'];
+	}
+}
+
+function authSyslog($message){
+	$ip = preg_replace("/[^0-9.]/",'',getClientIP());
+	$sysUser = preg_replace("/[^A-Za-z0-9]/",'',$_POST['user']);
+	if(SYSLOG_AUTHD_ENABLE){
+		$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
+		$msg = "kodi_authd ".$message." : {$ip} {$sysUser}";
+		$len = strlen($msg);
+		socket_sendto($sock, $msg, $len, 0, SYSLOG_AUTHD_HOST, SYSLOG_AUTHD_PORT);
+		socket_close($sock);
+		exit;
+	}
+}		
+
 /**
   * Convert XML from KODI/XBMC database to array of URL.
   */

index.php

@@ -13,10 +13,12 @@
 		sleep(2);
 		if(!checkAuthentication(trim(strval($_POST['user'])), trim(strval($_POST['pass'])))){
 			echo "<span class='error'>" . AUTHENTICATION_ERROR_CREDENTIAL . "</span>";
+			authSyslog("Client authentication failure");
 			exit;
 		} else {
 			echo "<span class='success'>" . AUTHENTICATION_SUCCESS_REDIRECT . "&nbsp;&nbsp;&nbsp;</span><img src='./images/loading-login.gif' />";
 			echo "<script type='text/javascript'>document.location='./';</script>";
+			authSyslog("New client authentication");
 			exit;
 		}
 	}