<?php
function get_curl($url,$post=0,$referer=0,$cookie=0,$header=0,$ua=0,$nobaody=0){
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL,$url);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
	$httpheader[] = "Accept: */*";
	$httpheader[] = "Accept-Encoding: gzip,deflate,sdch";
	$httpheader[] = "Accept-Language: zh-CN,zh;q=0.8";
	$httpheader[] = "Connection: close";
	curl_setopt($ch, CURLOPT_TIMEOUT, 30);
	if($post){
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
		$httpheader[] = "Content-Type: application/x-www-form-urlencoded; charset=UTF-8";
	}
	curl_setopt($ch, CURLOPT_HTTPHEADER, $httpheader);
	if($header){
		curl_setopt($ch, CURLOPT_HEADER, TRUE);
	}
	if($cookie){
		curl_setopt($ch, CURLOPT_COOKIE, $cookie);
	}
	if($referer){
		if($referer==1){
			curl_setopt($ch, CURLOPT_REFERER, 'http://m.qzone.com/infocenter?g_f=');
		}else{
			curl_setopt($ch, CURLOPT_REFERER, $referer);
		}
	}
	if($ua){
		curl_setopt($ch, CURLOPT_USERAGENT,$ua);
	}else{
		curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36');
	}
	if($nobaody){
		curl_setopt($ch, CURLOPT_NOBODY,1);
	}
	curl_setopt($ch, CURLOPT_ENCODING, "gzip");
	curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
	$ret = curl_exec($ch);
	curl_close($ch);
	return $ret;
}
function real_ip(){
$ip = $_SERVER['REMOTE_ADDR'];
if(isset($_SERVER['HTTP_X_FORWARDED_FOR']) && preg_match_all('#\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}#s', $_SERVER['HTTP_X_FORWARDED_FOR'], $matches)) {
	foreach ($matches[0] AS $xip) {
		if (!preg_match('#^(10|172\.16|192\.168)\.#', $xip)) {
			$ip = $xip;
			break;
		}
	}
} elseif (isset($_SERVER['HTTP_CLIENT_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CLIENT_IP'])) {
	$ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (isset($_SERVER['HTTP_CF_CONNECTING_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CF_CONNECTING_IP'])) {
	$ip = $_SERVER['HTTP_CF_CONNECTING_IP'];
} elseif (isset($_SERVER['HTTP_X_REAL_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_X_REAL_IP'])) {
	$ip = $_SERVER['HTTP_X_REAL_IP'];
}
return $ip;
}
function get_ip_city($ip)
{
    $url = 'http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=';
    @$city = get_curl($url . $ip);
    $city = json_decode($city, true);
    if ($city['city']) {
        $location = $city['province'].$city['city'];
    } else {
        $location = $city['province'];
    }
	if($location){
		return $location;
	}else{
		return false;
	}
}
function daddslashes($string, $force = 0, $strip = FALSE) {
	!defined('MAGIC_QUOTES_GPC') && define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());
	if(!MAGIC_QUOTES_GPC || $force) {
		if(is_array($string)) {
			foreach($string as $key => $val) {
				$string[$key] = daddslashes($val, $force, $strip);
			}
		} else {
			$string = addslashes($strip ? stripslashes($string) : $string);
		}
	}
	return $string;
}

function strexists($string, $find) {
	return !(strpos($string, $find) === FALSE);
}

function dstrpos($string, $arr) {
	if(empty($string)) return false;
	foreach((array)$arr as $v) {
		if(strpos($string, $v) !== false) {
			return true;
		}
	}
	return false;
}

function checkmobile() {
	$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
	$ualist = array('android', 'midp', 'nokia', 'mobile', 'iphone', 'ipod', 'blackberry', 'windows phone');
	if((dstrpos($useragent, $ualist) || strexists($_SERVER['HTTP_ACCEPT'], "VND.WAP") || strexists($_SERVER['HTTP_VIA'],"wap"))){
		return true;
	}else{
		return false;
	}
}
/**
 * 取中间文本
 * @param unknown $str
 * @param number $leftStr
 * @param number $rightStr
 */
function getSubstr($str, $leftStr, $rightStr)
{
	$left = strpos($str, $leftStr);
	$right = strpos($str, $rightStr,$left);
	if($left < 0 or $right < $left) return '';
	return substr($str, $left + strlen($leftStr), $right-$left-strlen($leftStr));
}

function authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {
	$ckey_length = 4;
	$key = md5($key ? $key : ENCRYPT_KEY);
	$keya = md5(substr($key, 0, 16));
	$keyb = md5(substr($key, 16, 16));
	$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';
	$cryptkey = $keya.md5($keya.$keyc);
	$key_length = strlen($cryptkey);
	$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$keyb), 0, 16).$string;
	$string_length = strlen($string);
	$result = '';
	$box = range(0, 255);
	$rndkey = array();
	for($i = 0; $i <= 255; $i++) {
		$rndkey[$i] = ord($cryptkey[$i % $key_length]);
	}
	for($j = $i = 0; $i < 256; $i++) {
		$j = ($j + $box[$i] + $rndkey[$i]) % 256;
		$tmp = $box[$i];
		$box[$i] = $box[$j];
		$box[$j] = $tmp;
	}
	for($a = $j = $i = 0; $i < $string_length; $i++) {
		$a = ($a + 1) % 256;
		$j = ($j + $box[$a]) % 256;
		$tmp = $box[$a];
		$box[$a] = $box[$j];
		$box[$j] = $tmp;
		$result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
	}
	if($operation == 'DECODE') {
		if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) {
			return substr($result, 26);
		} else {
			return '';
		}
	} else {
		return $keyc.str_replace('=', '', base64_encode($result));
	}
}

function random($length, $numeric = 0) {
	$seed = base_convert(md5(microtime().$_SERVER['DOCUMENT_ROOT']), 16, $numeric ? 10 : 35);
	$seed = $numeric ? (str_replace('0', '', $seed).'012340567890') : ($seed.'zZ'.strtoupper($seed));
	$hash = '';
	$max = strlen($seed) - 1;
	for($i = 0; $i < $length; $i++) {
		$hash .= $seed{mt_rand(0, $max)};
	}
	return $hash;
}
function showmsg($content = '未知的异常',$type = 4,$back = false)
{
switch($type)
{
case 1:
	$panel="success";
break;
case 2:
	$panel="info";
break;
case 3:
	$panel="warning";
break;
case 4:
	$panel="danger";
break;
}

echo '<div class="panel panel-'.$panel.'">
      <div class="panel-heading">
        <h3 class="panel-title">提示信息</h3>
        </div>
        <div class="panel-body">';
echo $content;

if ($back) {
	echo '<hr/><a href="'.$back.'"><< 返回上一页</a>';
}
else
    echo '<hr/><a href="javascript:history.back(-1)"><< 返回上一页</a>';

echo '</div>
    </div>';
exit;
}