对于限制了ip和来源的网站,使用正常的访问方式是无法访问的。本文将介绍一种方法,使用php的curl类实现模拟ip和来源,访问那些限制了ip和来源的网站。
1.设置页面限制ip和来源访问
server.php
$client_ip = getip();
$referer = getreferer();
$allow_ip = '192.168.1.100';
$allow_referer = '';
if($client_ip==$allow_ip && strpos($referer, $allow_referer)===0){
echo 'allow access';
}else{
echo 'deny access';
}
// 获取访问者ip
function getip(){
if(!empty($_SERVER['HTTP_CLIENT_IP'])){
$cip = $_SERVER['HTTP_CLIENT_IP'];
}elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
$cip = $_SERVER['HTTP_X_FORWARDED_FOR'];
}elseif(!empty($_SERVER['REMOTE_ADDR'])){
$cip = $_SERVER['REMOTE_ADDR'];
}else{
$cip = '';
}
return $cip;
}
// 获取访问者来源
function getreferer(){
if(isset($_SERVER['HTTP_REFERER'])){
return $_SERVER['HTTP_REFERER'];
}
return '';
}
?>
2.使用curl正常访问
function doCurl($url, $data=array(), $header=array(), $timeout=30){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
$response = curl_exec($ch);
if($error=curl_error($ch)){
die($error);
}
curl_close($ch);
return $response;
}
// 调用
$url = '/server.php';
$response = doCurl($url);
echo $response;
?>
返回 deny access
3.使用curl模拟ip和来源进行访问
模拟来源
curl_setopt($ch, CURLOPT_REFERER, '来源');
模拟ip
curl_setopt($ch, CURLOPT_HTTPHEADER, array('CLIENT-IP: 模拟ip','X-FORWARDED-FOR: 模拟ip'));
完整代码如下:
function doCurl($url, $data=array(), $header=array(), $referer='', $timeout=30){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
// 模拟来源
curl_setopt($ch, CURLOPT_REFERER, $referer);
$response = curl_exec($ch);
if($error=curl_error($ch)){
die($error);
}
curl_close($ch);
return $response;
}
// 调用
$url = '/server.php';
$data = array();
// 设置IP
$header = array(
'CLIENT-IP: 192.168.1.100',
'X-FORWARDED-FOR: 192.168.1.100'
);
// 设置来源
$referer = '/';
$response = doCurl($url, $data, $header, $referer, 5);
echo $response;
?>
返回 allow access
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