检测传入的 PHP 帖子，保存文件

Question

Currently there is a server set up to post zlib files to another server : (Here is the C# code for that)

HttpWebRequest req = (HttpWebRequest)WebRequest.Create("https://server-ip-here/postlistener?filename=filename.zlib");
req.UseNagleAlgorithm = true;
req.AllowWriteStreamBuffering = true;
req.Method = "POST";
req.Accept = "application/xml";
req.ServicePoint.Expect100Continue = false;
System.Net.ServicePointManager.CheckCertificateRevocationList = false;
req.Proxy = new WebProxy();

filename = "filename.dat";
byte[] postData = File.ReadAllBytes(filename);
Stream stream = req.GetRequestStream();
stream.Write(postData, 0, postData.Length);
stream.Flush();
stream.Close();

req.BeginGetResponse(new AsyncCallback(responseHandler), this);

Need to write some php on a different server so that when this specific IP posts stuff to me (aka when server 192. something or other posts to my server IP) I need to be able to

• a) Detect that a POST is being made
• b) Check it is by a whitelisted IP
• c) Download the POST data (which should be binary) and save it as whatever its name is in the post (need to accept filename in URL: . www.blah.com/upload?filename=somefile_1234_12389126496129684790.zlib)

However being new ish to PHP this is what my research so far has told me:

• a) Use this code to see if the request is a post

  if '($_SERVER['REQUEST_METHOD'] === 'POST') { // … }

• b) use: $_SERVER['HTTP_REFERER']

• c) No real idea.

Also not entirely sure how to string these parts together. Any ideas how I can go about listening for POSTs being sent from that IP, then downloading the file that is being posted?

Also really not sure how to set my php page up to be able to do:

/postlistener?filename=filename.zlib

I believe the postlistener part is my page, and somehow that page is supposed to get a file also? TH=his is my understanding, have taken over this project for someone else in the company, and of course there is no documentation to go with it. Any help would be big help, thanks.

Answer 1

This will listen for any POST data, and then put the post variable name into an array.

    <?

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     if($_SERVER['REMOTE_ADDR'] == '*IPADDRESS*') {
          $posts = array();
          foreach ($_POST as $key => $value){
               echo "{$key} = {$value}\r\n";
               array_push($posts,$key);
          }
      }
}

print_r($posts);
?>

After that you can loop through the $posts array and download all the things.