<?php
// +----------------------------------------------------------------------
// | SentCMS [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013 http://www.tensent.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: molong <molong@tensent.cn> <http://www.tensent.cn>
// +----------------------------------------------------------------------
// 应用公共文件
use think\facade\Session;

define("SENTCMS_VERSION", '4.0.20200217');

/**
 *
 */
function is_login() {
	$user = Session::get('userInfo');
	return $user['uid'];
}

function is_administrator() {
	return true;
}

function hook() {}

/**
 * 获取客户端IP地址
 * @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字
 * @param boolean $adv 是否进行高级模式获取（有可能被伪装）
 * @return mixed
 */
function get_client_ip($type = 0, $adv = false) {
	$type = $type ? 1 : 0;
	static $ip = NULL;
	if ($ip !== NULL) {
		return $ip[$type];
	}

	if ($adv) {
		if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
			$arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
			$pos = array_search('unknown', $arr);
			if (false !== $pos) {
				unset($arr[$pos]);
			}

			$ip = trim($arr[0]);
		} elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
			$ip = $_SERVER['HTTP_CLIENT_IP'];
		} elseif (isset($_SERVER['REMOTE_ADDR'])) {
			$ip = $_SERVER['REMOTE_ADDR'];
		}
	} elseif (isset($_SERVER['REMOTE_ADDR'])) {
		$ip = $_SERVER['REMOTE_ADDR'];
	}
	// IP地址合法验证
	$long = sprintf("%u", ip2long($ip));
	$ip = $long ? array($ip, $long) : array('0.0.0.0', 0);
	return $ip[$type];
}

function avatar($uid, $size = 'middle') {
	return request()->root(true) . '/static/common/images/default_avatar_' . $size . '.jpg';
}