php有效防止图片盗用、盗链的两种方法

RewriteEngine on
 
RewriteCond %{HTTP_REFERER} !^$ [NC]
 
RewriteCond %{HTTP_REFERER} !simcole.cn [NC]
 
RewriteCond %{HTTP_REFERER} !zhuaxia.com [NC]
 
RewriteCond %{HTTP_REFERER} !google.com [NC]
 
RewriteCond %{HTTP_REFERER} !baidu.com [NC]
 
RewriteCond %{HTTP_REFERER} !bloglines.com [NC]
/* 作者：码农教程 http://www.manongjc.com  */
RewriteRule .(jpg|gif|png|bmp|swf|jpeg) /image/replace.gif [R,NC,L]
 
RewriteRule ^(.*)$ http://image.simcole.cn/image/$1 [L]
复制代码

RewriteCond %{HTTP_REFERER} !^$ [NC]
 
RewriteCond %{HTTP_REFERER} !simcole.cn [NC]
 
RewriteCond %{HTTP_REFERER} !zhuaxia.com [NC]
 
RewriteCond %{HTTP_REFERER} !google.com [NC]
/* 作者：码农教程 http://www.manongjc.com/article/1550.html  */
RewriteCond %{HTTP_REFERER} !baidu.com [NC]
 
RewriteCond %{HTTP_REFERER} !bloglines.com [NC]

# options the .htaccess files in directories can override.
# Edit apache/conf/httpd.conf to AllowOverride in .htaccess
# AllowOverride AuthConfig
# Stop the directory list from being shown
Options -Indexes
# Controls who can get stuff from this server.
Order Deny,Allow
Deny from all
Allow from localhost

class imgdata{
public $imgsrc;
public $imgdata;
public $imgform;
public function getdir($source){
$this->imgsrc = $source;
}
public function img2data(){
$this->_imgfrom($this->imgsrc);
return $this->imgdata=fread(fopen($this->imgsrc,'rb'),filesize($this->imgsrc));
}
public function data2img(){
header(“content-type:$this->imgform”);
echo $this->imgdata;
//echo $this->imgform;
//imagecreatefromstring($this->imgdata);
}
public function _imgfrom($imgsrc){
$info=getimagesize($imgsrc);
//var_dump($info);
/* 作者：码农教程 http://www.manongjc.com  */
return $this->imgform = $info['mime'];
}
}
$n = new imgdata;
$n -> getdir(“1.jpg”); //图片路径，一般存储在数据库里，用户无法获取真实路径,可根据图片ID来获取
$n -> img2data();
$n -> data2img();

location / {
root /usr/local/nginx/html;
auth_basic “Auth”;
auth_basic_user_file /usr/local/nginx/conf/htpasswd;
index index.php index.htm;
}