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Homephp教程php手册php图片文件 下载文件 防盗链设置方法

php图片文件 下载文件 防盗链设置方法

Jun 13, 2016 am 10:12 AM
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在php中最简单的防盗链办法就是利用php的$_SERVER[\'HTTP_REFERER\']函数来操作了,但是此方法不可靠了,我们最终还是需要使用apache,iis来进行操作的,下面我分享介绍了,有需要的朋友可参考。

php防盗链

 代码如下 复制代码

session_start();
session_register(‘check’);
$_SESSION[‘check’]=true;
?>

检查session变数,判断是否造访首页。并且检查他的来源网页参考(HTTP_REFERER)是否来自本地网站的网页。
方法如下:

 代码如下 复制代码

session_start();
$refs = parse_url($_SERVER['HTTP_REFERER']); //分解参考网页资讯
//检查首页session及来源主机是否相同
if(!($_SESSION['check']) || $refs['host'] != $_SERVER['HTTP_HOST'])
exit;

?>

注意:这个只能简单的防盗链了,如果稍懂一点的就可以破解了,

利用服务器来设置php防盗连

apache防盗链

修改httpd.conf

 代码如下 复制代码

SetEnvIfNoCase Referer "^" local_ref=1

Order Allow,Deny
Allow from env=local_ref

如果希望显示一张“禁止盗链”的图片,我们可以用mod_rewrite 来实现。
首先在安装 apache 时要加上 --enable-rewrite 参数加载 mod_rewrite 模组。
假设“禁止盗链”的图片为abc.gif,我们在 httpd.conf 中可以这样配置:

 代码如下 复制代码
RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www.)?hzhuti.com /.*$ [NC]
RewriteRule .(gif|jpg)$ abc.gif [R,L]
DocumentRoot "/usr/local/apache/htdocs"
#设置存放站点html文件的目录。

Options FollowSymLinks
AllowOverride None

iis防盗链

执行文件选择 c:RewriteRewrite.dll 即可以了
httpd.ini是配置文件
图片防盗链代码

 代码如下 复制代码


[ISAPI_Rewrite]
# 3600 = 1 hour
CacheClockRate 3600
RepeatLimit 32
# Protect httpd.ini and httpd.parse.errors files
# from accessing through HTTP
RewriteCond Host: (.+)
RewriteCond Referer: (?!http://1.*).*
RewriteRule .*.(?:gif|jpg|png|bmp) /force.gif [I,O]

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