php中fsockopen模仿post与get详解_PHP教程-php教程-PHP中文网

php中fsockopen模仿post与get详解_PHP教程

WBOY

发布： 2016-07-20 11:12:08

原创

807 人浏览过

在php中fsockopen函数可以模仿用户去访问一些网站并且还可以带一些常用的信息，如果浏览器，IP，post,get 等等数据，下面我分别一来给大家介绍介绍。

如果你要使用fsockopen函数我们必须在php.ini中把allow_url_fopen = On 设置为开启状态。

例

fsockopen() Example

代码如下	复制代码
$fp = fsockopen("www.example.com", 80, $errno, $errstr, 30); if (!$fp) { echo "$errstr ($errno) n"; } else { $out = "GET / HTTP/1.1rn"; $out .= "Host: www.example.comrn"; $out .= "Connection: Closernrn"; fwrite($fp, $out); while (!feof($fp)) { echo fgets($fp, 128); } fclose($fp); } ?>

伪造post

POST HTTP请求(URL)并获取返回值

代码如下

复制代码

$srv_ip = '192.168.1.5';//你的目标服务地址.

$srv_port = 80;//端口

$url = 'http://localhost/fsock.php'; //接收你post的URL具体地址

$fp = '';

$errno = 0;//错误处理

$errstr = '';//错误处理

$timeout = 10;//多久没有连上就中断

$post_str = "username=demo&password=hahaha";//要提交的内容.

//打开网络的 Socket 链接。

$fp = fsockopen($srv_ip,$srv_port,$errno,$errstr,$timeout);

if (!$fp){

echo('fp fail');

}

$content_length = strlen($post_str);

$post_header = "POST $url HTTP/1.1rn";

$post_header .= "Content-Type: application/x-www-form-urlencodedrn";

$post_header .= "User-Agent: MSIErn";

$post_header .= "Host: ".$srv_ip."rn";

$post_header .= "Content-Length: ".$content_length."rn";

$post_header .= "Connection: closernrn";

$post_header .= $post_str."rnrn";

fwrite($fp,$post_header);

$inheader = 1;

while(!feof($fp)){//测试文件指针是否到了文件结束的位置

$line = fgets($fp,1024);

//去掉请求包的头信息

if ($inheader && ($line == "n" || $line == "rn")) {

$inheader = 0;

}

if ($inheader == 0) {

echo $line;

}

fclose($fp);

unset ($line);

简要说明：代码第二行是你的IP地址或域名，第四行是你要POST的页面的具体地址，本例用的是fsock.php，fsock.php内容如下：

代码如下

复制代码

echo "username:".$_POST['username']."
";

echo "password:".$_POST['password'];

结果为：

username:demo

password:hahaha

伪造get

同时伪造post,get方法。

代码如下

复制代码

//fsocket模拟post提交
$purl = "http://localhost/netphp/test2.php?uu=rrrrrrrrrrrr";
print_r(parse_url($url));
sock_post($purl,"uu=55555555555555555");
//fsocket模拟get提交
function sock_get($url, $query)
{
   $info = parse_url($url);
   $fp = fsockopen($info["host"], 80, $errno, $errstr, 3);
   $head = "GET ".$info['path']."?".$info["query"]." HTTP/1.0rn";
   $head .= "Host: ".$info['host']."rn";
   $head .= "rn";
   $write = fputs($fp, $head);
   while (!feof($fp))
   {
    $line = fread($fp,4096);
    echo $line;
   }
}
sock_post($purl,"uu=rrrrrrrrrrrrrrrr");
function sock_post($url, $query)
{
   $info = parse_url($url);
   $fp = fsockopen($info["host"], 80, $errno, $errstr, 3);
   $head = "POST ".$info['path']."?".$info["query"]." HTTP/1.0rn";
   $head .= "Host: ".$info['host']."rn";
   $head .= "Referer: http://".$info['host'].$info['path']."rn";
   $head .= "Content-type: application/x-www-form-urlencodedrn";
   $head .= "Content-Length: ".strlen(trim($query))."rn";
   $head .= "rn";
   $head .= trim($query);
   $write = fputs($fp, $head);
   while (!feof($fp))
   {
    $line = fread($fp,4096);
    echo $line;
   }
}
?>