book_admin/application/common/constants/AppConstants.php

<?php
/**
 * Created by PhpStorm.
 * User: Bear
 * Date: 2019/1/23
 * Time: 上午10:13
 */

namespace app\common\constants;


use app\common\library\Redis;
use think\Config;

class AppConstants
{
    public static function getTmpFilePath($path_dir = '')
    {
        if (!$path_dir) {
            $path_dir = sys_get_temp_dir();
        }

        rtrim($path_dir, '/');
        $tmpFile = $path_dir . '/' . uniqid() . '.png';
        return $tmpFile;
    }

    public static function getUploadQrPath()
    {
        return ROOT_PATH . 'public/uploads/qrcode/' . uniqid() . '.png';
    }

    /**
     * @param $uploadPath
     * @return string
     */
    public static function getPublicUrl($uploadPath)
    {
        $path = explode('/public', $uploadPath);
        return Config::get('site.scheme').'://'.Config::get('site.url_root') . $path[1];
    }

    /**
     * 获取随机域名
     * @return string
     */
    /*public static function getRandomFrontDomain()
    {
        $domains = @file_get_contents(ROOT_PATH . 'public/front_domains.txt');
        if ($domains) {
            $domains = explode(',', $domains);
            $domains = array_filter($domains);
            $random_index = rand(0, count($domains) - 1);
            $domain = $domains[$random_index];
        } else {
            $domain = "";
        }
        return $domain;
    }*/

    /**
     * 获取随机域名
     * @return string
     */
    public static function getRandomFrontDomain()
    {
        $domainRedisKey = 'DOMAINPOOLS:';
        $redis = Redis::instance();
        if($redis->exists($domainRedisKey)){
            $domains = $redis->get($domainRedisKey);
            if ($domains) {
                $domains = explode(',', $domains);
                $domains = array_filter($domains);
                $random_index = rand(0, count($domains) - 1);
                $domain = $domains[$random_index];
            } else {
                $domain = "";
            }
        } else {
            $domainList = model('DomainPools')->select();
            $domain_pools_str = '';
            foreach ($domainList as $key => $item) {
                $value = $item->domain;
                if (!empty(trim($value))) {
                    $domain_pools_str .= trim($value);
                    if ($key < (count($domainList) - 1)) {
                        $domain_pools_str .= ',';
                    }
                }
            }
            $redis = Redis::instance();
            $redis->set($domainRedisKey, $domain_pools_str, 7 * 24 * 60 * 60);
            $data = array_pop($domainList);
            if($data){
                $domain = $data->domain;
            }else{
                $domain = "";
            }
        }
        return $domain;
    }

    /**
     * 获取随机微信安全域名
     * @return string
     */
    public static function getRandomWechatDomain()
    {
        $domainRedisKey = 'WECHATPOOLS:';
        $redis = Redis::instance();
        if ($redis->exists($domainRedisKey)) {
            $domains_json = $redis->get($domainRedisKey);
            $domains = json_decode($domains_json, true);
            if ($domains) {
                $data = array_pop($domains);
            } else {
                $data = "";
            }
        } else {
            $wechatList = model('WechatPools')->select();
            foreach ($wechatList as $key => $value) {
                $t_data[$key]['appid'] = trim($value->appid);
                $t_data[$key]['domain'] = trim($value->domain);
            }
            $redis = Redis::instance();
            $redis->set($domainRedisKey, json_encode($t_data), 7 * 24 * 60 * 60);

            if ($wechatList) {
                $data = array_pop($t_data);
            } else {
                $data = "";
            }
        }
        return $data;
    }
}