emlog_online2/online2.php

<?php
/*
Plugin Name: 在线统计
Version: 1.7.1
Plugin URL: http://xiaosong.org/tech/new-version-online-statistics-plugin-released
Description: 显示当前在线人数及最高纪录，后台显示当前在线列表并可自定义过滤的蜘蛛UA标记
ForEmlog:4.2.1+
Author: 小松
Author Email: sahala_2007@126.com
Author URL: http://xiaosong.org/
*/
!defined('EMLOG_ROOT') && exit('access deined!');

require_once('online2_config.php');

function is_bot(){
	global $ua_block;
	if (empty($ua_block)) {
		return false; // Not block bot
	} 
	$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
	$ua_blocks = strtolower($ua_block);
	$ua_block_array = explode("|", $ua_blocks);
	$botlist = $ua_block_array;
	foreach($botlist as $bot){
		if(strpos($ua, $bot) !== false)
		return true;	// Is a bot
	}
	return false;	// Not a bot
}

function online2(){
	$DB = MySql::getInstance();
	$stringIp = getIp();
	$useragent = addslashes($_SERVER['HTTP_USER_AGENT']);
	if (!empty($stringIp) && !is_bot()) {
		$inDB = $DB->query("SELECT 1 FROM ".DB_PREFIX."online2 WHERE ip='".$stringIp."'");
		if (!$DB->num_rows($inDB)) {
			$DB->query("INSERT INTO ".DB_PREFIX."online2 (ip, useragent) VALUES('".$stringIp."', '".$useragent."')");
		} else {
			$DB->query("UPDATE ".DB_PREFIX."online2 SET dt=NOW(), useragent = '".$useragent."' WHERE ip='".$stringIp."'");
		}
		if (ROLE == 'admin') {
			$DB->query("DELETE FROM ".DB_PREFIX."online2 WHERE dt<SUBTIME(NOW(),'0 0:10:0')");
		}
		$nowOnline = nowOnline();
		$res_max = maxOnline();
		$maxOnline = $res_max['maximum'];
		if ($nowOnline > $maxOnline) {
			$cacheData = serialize(array('maximum' => $nowOnline, 'maxDate' => time()));
			Option::updateOption('maxOnline', $cacheData);
			$CACHE = Cache::getInstance();
			$CACHE->updateCache('options');
		}
	}
}
addAction('index_head', 'online2');
addAction('adm_head', 'online2');

function maxOnline(){
	$data = unserialize(Option::get('maxOnline'));
	return $data;
}

function nowOnline(){
	$DB = MySql::getInstance();
	$res_now = $DB->once_fetch_array("SELECT count(1) AS total FROM ".DB_PREFIX."online2 WHERE dt>SUBTIME(NOW(),'0 0:10:0') ");
	$nowOnline = $res_now['total'];
	return $nowOnline;
}

function onlineOutput(){
	global $is_querycount, $query_template;
	$DB = MySql::getInstance();
	$maxOnline = maxOnline();
	$nowOnline = nowOnline();
	$maxOnlineTime = smartDate($maxOnline["maxDate"], 'Y-m-d');
	$queryCount = $DB->getQueryCount();
	$queryCountTemplate = str_replace('{queryCount}', $queryCount, $query_template);
	$queryCountOutput = (isset($is_querycount) && $is_querycount == 'true') ? $queryCountTemplate : '';
	echo '总计 '.$nowOnline.' 人在线 - 最高纪录是 '.$maxOnline["maximum"].' 于 '.$maxOnlineTime.$queryCountOutput.'<!-- Powered online2 plugin by xiaosong.org -->';
}

if ($is_footer == 'true') {
	addAction('index_footer', 'onlineOutput');
}

//仅供后台使用
function displayOnlineList(){
	$DB = MySql::getInstance();
  $res_nowonline = $DB->query("SELECT ip, dt, useragent FROM ".DB_PREFIX."online2 order by dt DESC");
  $output_online = '';
  while($row = $DB->fetch_array($res_nowonline)){
  	$iplocation = function_exists('convertip') ? '[- '.convertip($row['ip']).']' : '';
    $output_online .= empty($row) ? '<tr><td colspan="3">暂无在线访客</td></tr>' : '<tr><td>'.$row['ip'].$iplocation.'</td><td>'.$row['dt'].'</td><td>'.$row['useragent'].'</td></tr>';
  }
  return $output_online;
}

function online_backup(){
	$DB = MySql::getInstance();
	global $tables;
	$is_exist_online2_query = $DB->query('show tables like "'.DB_PREFIX.'online2"');
	if($DB->num_rows($is_exist_online2_query) != 0) array_push($tables, 'online2');
}
addAction('data_prebakup', 'online_backup');

function online_menu()
{
	echo '<div class="sidebarsubmenu" id="online2"><a href="./plugin.php?plugin=online2">在线统计</a></div>';
}
addAction('adm_sidebar_ext', 'online_menu');
?>