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librenms-librenms/irc.php
f0o aeccdbb942 Cleanup for Scrutinizer
2014-12-15 14:33:31 +00:00

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#!/usr/bin/env php
<?php
/* Copyright (C) 2014 <singh@devilcode.org>
* Modified and Relicensed by <f0o@devilcode.org> under the expressed
* permission by the Copyright-Holder <singh@devilcode.org>.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>. */
chdir(dirname($argv[0]));
require_once("includes/defaults.inc.php");
require_once("config.php");
require_once("includes/definitions.inc.php");
require_once("includes/functions.php");
require_once("includes/discovery/functions.inc.php");
error_reporting(E_ERROR);
class ircbot {
private $data = "";
private $authd = array();
private $debug = false;
private $server = "";
private $port = "";
private $ssl = false;
private $pass = "";
private $nick = "LibreNMS";
private $chan = array();
private $commands = array("auth", "quit", "listdevices", "device", "port", "down", "version", "status", "log", "help", "reload", "join");
private $external = array();
private $tick = 62500;
public function __construct() {
global $config, $database_link;
$this->log("Setting up IRC-Bot..");
if( is_resource($database_link) ) {
$this->sql = $database_link;
}
$this->j = 2;
$this->config = $config;
$this->debug = $this->config['irc_debug'];
$this->config['irc_authtime'] = $this->config['irc_authtime'] ? $this->config['irc_authtime'] : 3;
$this->max_retry = $this->config['irc_maxretry'];
$this->server = $this->config['irc_host'];
if($this->config['irc_port'][0] == "+") {
$this->ssl = true;
$this->port = substr($this->config['irc_port'], 1);
} else {
$this->port = $this->config['irc_port'];
}
if($this->config['irc_nick']) {
$this->nick = $this->config['irc_nick'];
}
if($this->config['irc_chan']) {
if(is_array($this->config['irc_chan'])) {
$this->chan = $this->config['irc_chan'];
} elseif(strstr($this->config['irc_chan'],",")) {
$this->chan = explode(",",$this->config['irc_chan']);
} else {
$this->chan = array($this->config['irc_chan']);
}
}
if($this->config['irc_pass']) {
$this->pass = $this->config['irc_pass'];
}
$this->load_external();
$this->log("Starting IRC-Bot..");
$this->init();
}
private function load_external() {
if(!$this->config['irc_external']) {
return true;
}
$this->log("Caching external commands...");
if(!is_array($this->config['irc_external'])) {
$this->config['irc_external'] = explode(",",$this->config['irc_external']);
}
foreach( $this->config['irc_external'] as $ext ) {
if( ($this->external[$ext] = file_get_contents("includes/ircbot/".$ext.".inc.php")) == "" ) {
unset($this->external[$ext]);
}
}
return $this->log("Cached ".sizeof($this->external)." commands.");
}
private function init() {
if($this->config['irc_alert']) {
$this->connect_alert();
}
$this->connect();
$this->log("Connected");
if($this->pass) {
fwrite($this->socket['irc'], "PASS ".$this->pass."\n\r");
}
$this->doAuth();
while( true ) {
foreach($this->socket as $n=>$socket) {
if(!is_resource($socket)) {
$this->log("Socket '$n' closed. Restarting.");
break 2;
}
}
$this->getData();
if($this->config['irc_alert']) {
$this->alertData();
}
usleep($this->tick);
}
return $this->init();
}
private function connect_alert() {
$f = $this->config['install_dir']."/.ircbot.alert";
if( (file_exists($f) || !touch($f)) && (!unlink($f) || !touch($f)) ) {
$this->log("Error - Cannot create Alert-File");
return false;
}
if( ($this->socket['alert'] = fopen($f,'r')) ) {
$this->log("Opened Alert-File");
stream_set_blocking($this->socket['alert'], false);
return true;
}
$this->log("Error - Cannot open Alert-File");
return false;
}
private function read($buff) {
$r = fread($this->socket[$buff],64);
$this->buff[$buff] .= $r;
$r = strlen($r);
if(strstr($this->buff[$buff],"\n")) {
$tmp = explode("\n",$this->buff[$buff],2);
$this->buff[$buff] = substr($this->buff[$buff], strlen($tmp[0])+2);
if( $this->debug ) {
$this->log("Returning buffer '$buff': '".trim($tmp[0])."'");
}
return $tmp[0];
}
if( $this->debug && $r > 0 ) {
$this->log("Expanding buffer '$buff' = '".trim($this->buff[$buff])."'");
}
return false;
}
private function alertData() {
if( ($alert = $this->read("alert")) !== false ) {
$alert = json_decode($alert,true);
foreach( $this->authd as $nick=>$data ) {
if( $data['expire'] >= time() ) {
$this->irc_raw("PRIVMSG ".$nick." :".trim($alert['title'])." - Rule: ".trim($alert['rule'])." - Faults".(sizeof($alert['faults']) > 3 ? " (showing first 3 out of ".sizeof($alert['faults'])." )" : "" ).":");
foreach( $alert['faults'] as $k=>$v ) {
$this->irc_raw("PRIVMSG ".$nick." :#".$k." ".$v);
if( $k >= 3 )
break;
}
}
}
}
}
private function getData() {
if( ($data = $this->read("irc")) !== false ) {
$this->data = $data;
$ex = explode(' ', $this->data);
if($ex[0] == "PING") {
return $this->irc_raw("PONG ".$ex[1]);
}
if( $ex[1] == 376 || ($ex[1] == "MODE" && $ex[2] == $this->nick) ) {
if($this->j == 2) {
$this->joinChan();
$this->j=0;
}
}
$this->command = str_replace(array(chr(10), chr(13)), '', $ex[3]);
if(strstr($this->command,":.")) {
$this->handleCommand();
}
}
}
private function joinChan($chan=false) {
if( $chan ) {
$this->chan[] = $chan;
}
foreach($this->chan as $chan) {
$this->irc_raw("JOIN ".$chan);
}
return true;
}
private function handleCommand() {
$this->command = str_replace(":.","",$this->command);
$tmp=explode(":.".$this->command." ",$this->data);
$this->user = $this->get_user();
if( $this->isAuthd() || trim($this->command) == "auth" ) {
$this->proceedCommand(str_replace("\n","",trim($this->command)),trim($tmp[1]));
}
$this->authd[$this->getUser($this->data)] = $this->user;
return false;
}
private function proceedCommand($command,$params) {
$command = strtolower($command);
if(in_array($command,$this->commands)) {
$this->chkdb();
$this->log($command." ( '".$params."' )");
return $this->{"_".$command}($params);
} elseif($this->external[$command]) {
$this->chkdb();
$this->log($command." ( '".$params."' ) [Ext]");
return eval($this->external[$command]);
}
return false;
}
private function respond($msg) {
$chan = $this->getChan($this->data);
return $this->sendMessage($msg,strstr($chan,"#") ? $chan : $this->getUser($this->data));
}
private function getChan($param){
$data = explode("PRIVMSG ",$this->data,3);
$data = explode(" ",$data[1],2);
return $data[0];
}
private function getUser($param) {
$arrData = explode("!",$param,2);
return str_replace(":","",$arrData[0]);
}
private function connect($try) {
if($try > $this->max_retry){
$this->log("Failed too many connection attempts, aborting");
return die();
}
$this->log("Trying to connect to ".$this->server.":".$this->port.($this->ssl?" (SSL)":""));
if($this->socket['irc']) {
fclose($this->socket['irc']);
}
if($this->ssl) {
$server = 'ssl://'.$this->server;
} else {
$server = $this->server;
}
$this->socket['irc'] = fsockopen($server, $this->port);
if(!is_resource($this->socket['irc'])) {
return $this->connect($try+1);
} else {
stream_set_blocking($this->socket['irc'], false);
return true;
}
}
private function doAuth() {
if( $this->irc_raw("USER ".$this->nick." 0 ".$this->nick." :".$this->nick) && $this->irc_raw("NICK ".$this->nick) ) {
return true;
}
return false;
}
private function sendMessage($message,$chan) {
if( $this->debug ) {
$this->log("Sending 'PRIVMSG ".trim($chan)." :".trim($message)."'");
}
return $this->irc_raw("PRIVMSG ".trim($chan)." :".trim($message));
}
private function log($msg) {
echo "[".date("r")."] ".trim($msg)."\n";
return true;
}
private function chkdb() {
if( !is_resource($this->sql) ) {
if( ($this->sql = mysql_connect($this->config['db_host'],$this->config['db_user'],$this->config['db_pass'])) != false && mysql_select_db($this->config['db_name'])) {
return true;
} else {
$this->log("Cannot connect to MySQL");
return die();
}
} else {
return true;
}
}
private function isAuthd() {
if( $this->user['expire'] >= time() ) {
$this->user['expire'] = time()+($this->config['irc_authtime']*3600);
return true;
} else {
return false;
}
}
private function get_user() {
return $this->authd[$this->getUser($this->data)];
}
private function irc_raw($params) {
return fputs($this->socket['irc'],$params."\r\n");
}
private function _auth($params) {
$params = explode(" ",$params,2);
if( strlen($params[0]) == 64 ) {
if( $this->tokens[$this->getUser($this->data)] == $params[0] ) {
$this->user['expire'] = time()+($this->config['irc_authtime']*3600);
$tmp = dbFetchRow("SELECT level FROM users WHERE user_id = ?", array($this->user['id']));
$this->user['level'] = $tmp['level'];
if( $this->user['level'] < 5 ) {
foreach( dbFetchRows("SELECT device_id FROM devices_perms WHERE user_id = ?", array($this->user['id'])) as $tmp ) {
$this->user['devices'][] = $tmp['device_id'];
}
foreach( dbFetchRows("SELECT port_id FROM ports_perms WHERE user_id = ?", array($this->user['id'])) as $tmp ) {
$this->user['ports'][] = $tmp['port_id'];
}
}
return $this->respond("Authenticated.");
} else {
return $this->respond("Nope.");
}
} else {
$user = dbFetchRow("SELECT `user_id`,`username`,`email` FROM `users` WHERE `username` = ?", array(mres($params[0])));
if($user['email'] && $user['username'] == $params[0]) {
$token = hash("gost",openssl_random_pseudo_bytes(1024));
$this->tokens[$this->getUser($this->data)] = $token;
$this->user['name'] = $params[0];
$this->user['id'] = $user['user_id'];
if( $this->debug ) {
$this->log("Auth for '".$params[0]."', ID: '".$user['user_id']."', Token: '".$token."', Mail: '".$user['email']."'");
}
if(send_mail($user['email'], "LibreNMS IRC-Bot Authtoken", "Your Authtoken for the IRC-Bot:\r\n\r\n".$token."\r\n\r\n") === true) {
return $this->respond("Token sent!");
} else {
return $this->respond("Sorry, seems like mail doesnt like us.");
}
} else {
return $this->respond("Who are you again?");
}
}
return false;
}
private function _reload() {
if( $this->user['level'] == 10 ) {
global $config;
include("includes/defaults.inc.php");
include("config.php");
$this->respond("Reloading configuration & defaults");
if( $config != $this->config ) {
return $this->__construct();
}
} else {
return $this->respond("Permission denied.");
}
}
private function _join($params) {
if( $this->user['level'] == 10 ) {
return $this->joinChan($params);
} else {
return $this->respond("Permission denied.");
}
}
private function _quit($params) {
if( $this->user['level'] == 10 ) {
return die();
} else {
return $this->respond("Permission denied.");
}
}
private function _help($params) {
foreach($this->commands as $cmd) {
$msg .= ", ".$cmd;
}
$msg = substr($msg,2);
return $this->respond("Available commands: $msg");
}
private function _version($params) {
return $this->respond($this->config['project_name_version'].", PHP: ".PHP_VERSION);
}
private function _log($params) {
$num = 1;
if( $params > 1 ) {
$num = $params;
}
if( $this->user['level'] < 5 ) {
$tmp = dbFetchRows("SELECT `event_id`,`host`,`datetime`,`message`,`type` FROM `eventlog` WHERE `host` IN (".implode(",",$this->user['devices']).") ORDER BY `event_id` DESC LIMIT ".mres($num));
} else
$tmp = dbFetchRows("SELECT `event_id`,`host`,`datetime`,`message`,`type` FROM `eventlog` ORDER BY `event_id` DESC LIMIT ".mres($num));
foreach( $tmp as $device) {
$hostid = dbFetchRow("SELECT `hostname` FROM `devices` WHERE `device_id` = ".$device['host']);
$this->respond($device['event_id'] ." ". $hostid['hostname'] ." ". $device['datetime'] ." ". $device['message'] ." ". $device['type']);
}
if(!$hostid) {
$this->respond("Nothing to see, maybe a bug?");
}
return true;
}
private function _down($params) {
if( $this->user['level'] < 5 ) {
$tmp = dbFetchRows("SELECT `hostname` FROM `devices` WHERE status=0 AND `device_id` IN (".implode(",",$this->user['devices']).")");
} else {
$tmp = dbFetchRows("SELECT `hostname` FROM `devices` WHERE status=0");
}
foreach( $tmp as $db ) {
if($db['hostname']) {
$msg .= ", ".$db['hostname'];
}
}
$msg = substr($msg,2);
$msg = $msg ? $msg : "Nothing to show :)";
return $this->respond($msg);
}
private function _device($params) {
$params = explode(" ",$params);
$hostname = $params[0];
$device = dbFetchRow("SELECT * FROM `devices` WHERE `hostname` = ?",array($hostname));
if(!$device) {
return $this->respond("Error: Bad or Missing hostname, use .listdevices to show all devices.");
}
if($this->user['level'] < 5 && !in_array($device['device_id'],$this->user['devices'])) {
return $this->respond("Error: Permission denied.");
}
$status = $device['status'] ? "Up ".formatUptime($device['uptime']) : "Down";
$status .= $device['ignore'] ? "*Ignored*" : "";
$status .= $device['disabled'] ? "*Disabled*" : "";
return $this->respond($device['os']." ".$device['version']." ".$device['features']." ".$status);
}
private function _port($params) {
$params = explode(" ",$params);
$hostname = $params[0];
$ifname = $params[1];
if( !$hostname || !$ifname ) {
return $this->respond("Error: Missing hostname or ifname.");
}
$device = dbFetchRow("SELECT * FROM `devices` WHERE `hostname` = ?",array($hostname));
$port = dbFetchRow("SELECT * FROM `ports` WHERE `ifName` = ? OR `ifDescr` = ? AND device_id = ?", array($ifname, $ifname, $device['device_id']));
if($this->user['level'] < 5 && !in_array($port['port_id'],$this->user['ports']) && !in_array($device['device_id'],$this->user['devices'])) {
return $this->respond("Error: Permission denied.");
}
$bps_in = formatRates($port['ifInOctets_rate']);
$bps_out = formatRates($port['ifOutOctets_rate']);
$pps_in = format_bi($port['ifInUcastPkts_rate']);
$pps_out = format_bi($port['ifOutUcastPkts_rate']);
return $this->respond($port['ifAdminStatus']."/".$port['ifOperStatus']." ".$bps_in. " > bps > ".$bps_out." | ".$pps_in."pps > PPS > ".$pps_out."pps");
}
private function _listdevices($params) {
if( $this->user['level'] < 5 ) {
$tmp = dbFetchRows("SELECT `hostname` FROM `devices` WHERE `device_id` IN (".implode(",",$this->user['devices']).")");
} else {
$tmp = dbFetchRows("SELECT `hostname` FROM `devices`");
}
foreach( $tmp as $device ) {
$msg .= ", ".$device['hostname'];
}
$msg = substr($msg,2);
$msg = $msg ? $msg : "Nothing to show..?";
return $this->respond($msg);
}
private function _status($params) {
$params = explode(" ",$params);
$statustype = $params[0];
if( $this->user['level'] < 5 ) {
$d_w = " WHERE device_id IN (".implode(",",$this->user['devices']).")";
$d_a = " AND device_id IN (".implode(",",$this->user['devices']).")";
$p_w = " WHERE port_id IN (".implode(",",$this->user['ports']).") OR device_id IN (".implode(",",$this->user['devices']).")";
$p_a = " AND (I.port_id IN (".implode(",",$this->user['ports']).") OR I.device_id IN (".implode(",",$this->user['devices'])."))";
}
switch($statustype) {
case "devices":
case "device":
case "dev":
$devcount = array_pop(dbFetchRow("SELECT count(*) FROM devices".$d_w));
$devup = array_pop(dbFetchRow("SELECT count(*) FROM devices WHERE status = '1' AND `ignore` = '0'".$d_a));
$devdown = array_pop(dbFetchRow("SELECT count(*) FROM devices WHERE status = '0' AND `ignore` = '0'".$d_a));
$devign = array_pop(dbFetchRow("SELECT count(*) FROM devices WHERE `ignore` = '1'".$d_a));
$devdis = array_pop(dbFetchRow("SELECT count(*) FROM devices WHERE `disabled` = '1'".$d_a));
$msg = "Devices: " .$devcount . " (" .$devup . " up, " .$devdown . " down, " .$devign . " ignored, " .$devdis . " disabled" . ")";
break;
case "ports":
case "port":
case "prt":
$prtcount = array_pop(dbFetchRow("SELECT count(*) FROM ports".$p_w));
$prtup = array_pop(dbFetchRow("SELECT count(*) FROM ports AS I, devices AS D WHERE I.ifOperStatus = 'up' AND I.ignore = '0' AND I.device_id = D.device_id AND D.ignore = '0'".$p_a));
$prtdown = array_pop(dbFetchRow("SELECT count(*) FROM ports AS I, devices AS D WHERE I.ifOperStatus = 'down' AND I.ifAdminStatus = 'up' AND I.ignore = '0' AND D.device_id = I.device_id AND D.ignore = '0'".$p_a));
$prtsht = array_pop(dbFetchRow("SELECT count(*) FROM ports AS I, devices AS D WHERE I.ifAdminStatus = 'down' AND I.ignore = '0' AND D.device_id = I.device_id AND D.ignore = '0'".$p_a));
$prtign = array_pop(dbFetchRow("SELECT count(*) FROM ports AS I, devices AS D WHERE D.device_id = I.device_id AND (I.ignore = '1' OR D.ignore = '1')".$p_a));
$prterr = array_pop(dbFetchRow("SELECT count(*) FROM ports AS I, devices AS D WHERE D.device_id = I.device_id AND (I.ignore = '0' OR D.ignore = '0') AND (I.ifInErrors_delta > '0' OR I.ifOutErrors_delta > '0')".$p_a));
$msg = "Ports: " .$prtcount . " (" .$prtup . " up, " .$prtdown . " down, " .$prtign . " ignored, " .$prtsht . " shutdown" . ")";
break;
case "services":
case "service":
case "srv":
$srvcount = array_pop(dbFetchRow("SELECT count(service_id) FROM services".$d_w));
$srvup = array_pop(dbFetchRow("SELECT count(service_id) FROM services WHERE service_status = '1' AND service_ignore ='0'".$d_a));
$srvdown = array_pop(dbFetchRow("SELECT count(service_id) FROM services WHERE service_status = '0' AND service_ignore = '0'".$d_a));
$srvign = array_pop(dbFetchRow("SELECT count(service_id) FROM services WHERE service_ignore = '1'".$d_a));
$srvdis = array_pop(dbFetchRow("SELECT count(service_id) FROM services WHERE service_disabled = '1'".$d_a));
$msg = "Services: " .$srvcount . " (" .$srvup . " up, " .$srvdown . " down, " .$srvign . " ignored, " .$srvdis . " disabled" . ")";
break;
default:
$msg = "Error: STATUS requires one of the following: <devices|device|dev>|<ports|port|prt>|<services|service|src>";
break;
}
return $this->respond($msg);
}
}
$irc = new ircbot();
?>
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