织梦dedecms搜索功能禁止特定地区用户访问

由于很多人有一些需求在做国内站的时候，不做国内某个地区的业务的时候，他想屏蔽用户访问网站，我这边以dedecms搜索功能为例子，因为是以前开发的，时间比较有限现在，不重新调整做整站的功能，如果有需要，可以将以下相关代码放入一个php文件，然后在data/common.ini.php里面包含就可以了。

目前网络上有很多资源，例如著名的珊瑚虫ip数据库，但是其文件在本地，得定时更新。我们现在使用淘宝ip数据库，通过json返回的数据来解析ip是否某地区，下面以”上海市”为例：

首页找到dedecms底下plus下的search.php文件，查找以下代码

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if($cfg_notallowstr !='' && preg_match("#".$cfg_notallowstr."#i", $keyword))

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{

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    ShowMsg("你的搜索关键字中存在非法内容，被系统禁止！","-1");

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    exit();

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}

在上面加入

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function get_ip_data(){  

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$ip=file_get_contents("http://ip.taobao.com/service/getIpInfo.php?ip=".get_client_ip());

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    $ip = json_decode($ip);

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    if($ip->code){

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        return false;

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    }

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    $data = (array) $ip->data;

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    if($data['city']=='上海市' && !isCrawler()){

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       // exit('https://www.xmy7.com');

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  return true;

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/*     header("location:".getenv("HTTP_REFERER")); // 返回其调用页面 */

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    }

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}

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function isCrawler() {

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        $spiderSite= array(

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                        "TencentTraveler",

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                        "Baiduspider+",

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                        "BaiduGame",

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                        "Googlebot",

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                        "msnbot",

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                        "Sosospider+",

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                        "Sogou web spider",

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                        "ia_archiver",

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                        "Yahoo! Slurp",

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                        "YoudaoBot",

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                        "Yahoo Slurp",

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                        "MSNBot",

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                        "Java (Often spam bot)",

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                        "BaiDuSpider",

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                        "Voila",

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                        "Yandex bot",

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                        "BSpider",

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                        "twiceler",

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                        "Sogou Spider",

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                        "Speedy Spider",

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                        "Google AdSense",

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                        "Heritrix",

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                        "Python-urllib",

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                        "Alexa (IA Archiver)",

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                        "Ask",

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                        "Exabot",

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                        "Custo",

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                        "OutfoxBot/YodaoBot",

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                        "yacy",

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                        "SurveyBot",

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                        "legs",

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                        "lwp-trivial",

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                        "Nutch",

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                        "StackRambler",

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                        "The web archive (IA Archiver)",

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                        "Perl tool",

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                        "MJ12bot",

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                        "Netcraft",

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                        "MSIECrawler",

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                        "WGet tools",

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                        "larbin",

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                        "Fish search",

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                );

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        if(in_array(strtolower($_SERVER['HTTP_USER_AGENT']),$spiderSite)){

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            return true;

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        }else{

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            return false;

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        }

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}

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//获取客户端ip

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function get_client_ip()

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{

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    if (isset($_SERVER)){

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            if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])){

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                $realip = $_SERVER["HTTP_X_FORWARDED_FOR"];

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            } else if (isset($_SERVER["HTTP_CLIENT_IP"])) {

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                $realip = $_SERVER["HTTP_CLIENT_IP"];

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            } else {

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                $realip = $_SERVER["REMOTE_ADDR"];

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            }

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    } else {

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            if (getenv("HTTP_X_FORWARDED_FOR")){

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                $realip = getenv("HTTP_X_FORWARDED_FOR");

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            } else if (getenv("HTTP_CLIENT_IP")) {

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                $realip = getenv("HTTP_CLIENT_IP");

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            } else {

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                $realip = getenv("REMOTE_ADDR");

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            }

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        }

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    return $realip;

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}

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if(get_ip_data())

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{

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    ShowMsg("你的IP被禁止！","-1");

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    exit();

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}