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[综合话题] 服务器反爬虫攻略:Apache/Nginx/PHP禁止某些User Agent抓取网站

894587758
铝牌会员
311.84 价值分

894587758 发表于 2017-06-07 13:34:34
Apache

①、通过修改 .htaccess文件

修改网站目录下的.htaccess,添加如下代码即可(2种代码任选):
可用代码 (1):

RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (^$|FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms) [NC]
RewriteRule ^(.*)$ - [F]
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RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (^$|FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms) [NC]
RewriteRule ^(.*)$ - [F]
可用代码 (2):

SetEnvIfNoCase ^User-Agent$ .*(FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms) BADBOT
Order Allow,Deny
Allow from all
Deny from env=BADBOT
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SetEnvIfNoCase ^User-Agent$ .*(FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms) BADBOT
Order Allow,Deny
Allow from all
Deny from env=BADBOT
②、通过修改httpd.conf配置文件

找到如下类似位置,根据以下代码 新增 / 修改,然后重启Apache即可:
Shell

DocumentRoot /home/wwwroot/xxx
<Directory "/home/wwwroot/xxx">
SetEnvIfNoCase User-Agent ".*(FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms)" BADBOT
Order allow,deny
Allow from all
deny from env=BADBOT
</Directory>
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DocumentRoot /home/wwwroot/xxx
<Directory "/home/wwwroot/xxx">
SetEnvIfNoCase User-Agent ".*(FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms)" BADBOT
Order allow,deny
Allow from all
deny from env=BADBOT
</Directory>
二、Nginx代码

进入到nginx安装目录下的conf目录,将如下代码保存为 agent_deny.conf
cd /usr/local/nginx/conf
vim agent_deny.conf

#禁止Scrapy等工具的抓取
if ($http_user_agent ~* (Scrapy|Curl|HttpClient)) {
return 403;
}
#禁止指定UA及UA为空的访问
if ($http_user_agent ~ "FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms|^$" ) {
return 403;
}
#禁止非GET|HEAD|POST方式的抓取
if ($request_method !~ ^(GET|HEAD|POST)$) {
return 403;
}
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#禁止Scrapy等工具的抓取
if ($http_user_agent ~* (Scrapy|Curl|HttpClient)) {
return 403;
}
#禁止指定UA及UA为空的访问
if ($http_user_agent ~ "FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms|^$" ) {
return 403;
}
#禁止非GET|HEAD|POST方式的抓取
if ($request_method !~ ^(GET|HEAD|POST)$) {
return 403;
}
然后,在网站相关配置中的 location / { 之后插入如下代码:
Shell

include agent_deny.conf;
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include agent_deny.conf;
如张戈博客的配置:
Shell

[marsge@Mars_Server ~]$ cat /usr/local/nginx/conf/zhangge.conf
location / {
try_files $uri $uri/ /index.php?$args;
#这个位置新增1行:
include agent_deny.conf;
rewrite ^/sitemap_360_sp.txt$ /sitemap_360_sp.php last;
rewrite ^/sitemap_baidu_sp.xml$ /sitemap_baidu_sp.php last;
rewrite ^/sitemap_m.xml$ /sitemap_m.php last;
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[marsge@Mars_Server ~]$ cat /usr/local/nginx/conf/zhangge.conf
location / {
try_files $uri $uri/ /index.php?$args;
#这个位置新增1行:
include agent_deny.conf;
rewrite ^/sitemap_360_sp.txt$ /sitemap_360_sp.php last;
rewrite ^/sitemap_baidu_sp.xml$ /sitemap_baidu_sp.php last;
rewrite ^/sitemap_m.xml$ /sitemap_m.php last;
保存后,执行如下命令,平滑重启nginx即可:
Shell

/usr/local/nginx/sbin/nginx -s reload
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/usr/local/nginx/sbin/nginx -s reload
三、PHP代码

将如下方法放到贴到网站入口文件index.php中的第一个 <?php 之后即可:
PHP

//获取UA信息
$ua = $_SERVER['HTTP_USER_AGENT'];
//将恶意USER_AGENT存入数组
$now_ua = array('FeedDemon ','BOT/0.1 (BOT for JCE)','CrawlDaddy ','Java','Feedly','UniversalFeedParser','ApacheBench','Swiftbot','ZmEu','Indy Library','oBot','jaunty','YandexBot','AhrefsBot','MJ12bot','WinHttp','EasouSpider','HttpClient','Microsoft URL Control','YYSpider','jaunty','Python-urllib','lightDeckReports Bot');
//禁止空USER_AGENT,dedecms等主流采集程序都是空USER_AGENT,部分sql注入工具也是空USER_AGENT
if(!$ua) {
header("Content-type: text/html; charset=utf-8");
die('请勿采集本站,因为采集的站长木有小JJ!');
}else{
foreach($now_ua as $value )
//判断是否是数组中存在的UA
if(eregi($value,$ua)) {
header("Content-type: text/html; charset=utf-8");
die('请勿采集本站,因为采集的站长木有小JJ!');
}
}
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//获取UA信息
$ua = $_SERVER['HTTP_USER_AGENT'];
//将恶意USER_AGENT存入数组
$now_ua = array('FeedDemon ','BOT/0.1 (BOT for JCE)','CrawlDaddy ','Java','Feedly','UniversalFeedParser','ApacheBench','Swiftbot','ZmEu','Indy Library','oBot','jaunty','YandexBot','AhrefsBot','MJ12bot','WinHttp','EasouSpider','HttpClient','Microsoft URL Control','YYSpider','jaunty','Python-urllib','lightDeckReports Bot');
//禁止空USER_AGENT,dedecms等主流采集程序都是空USER_AGENT,部分sql注入工具也是空USER_AGENT
if(!$ua) {
header("Content-type: text/html; charset=utf-8");
die('请勿采集本站,因为采集的站长木有小JJ!');
}else{
foreach($now_ua as $value )
//判断是否是数组中存在的UA
if(eregi($value,$ua)) {
header("Content-type: text/html; charset=utf-8");
die('请勿采集本站,因为采集的站长木有小JJ!');
}
}
四、测试效果
2017-06-07 13:34:34 1
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