[php-list] How to post from PHP to a PHP script whether or not remote connection is not allowed

[robison]

Hi Guys.

I had asked for help with the basic part of this a while back.
I got it working then immediately a recent server migration broke
it by disallowing remote connection.
Here is the solution for that too, all in one place.


Here is how to send a "fake" post into a script whether or not remote
connection is disallowed.
You will be able to tell by the returned text which method it ended up
having to use.
Notice that the + is replaced to prevent the ArgV[0] from ending at the
first +.  That is what it
takes to get the whole post over to the target script intact.


Here is the routine to send the post:
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
function SendPost($host, $path, $data, $DoArg){
   if ($DoArg){
         $ArgVzero = str_replace("+", "!~plus~!",
urlencode(stripslashes($data)));
         $res = file_get_contents("http://$host$path"."?".$ArgVzero);
   }
   else{
      $header .= "POST http://$host$path HTTP/1.1\r\n";
      $header .= "Host:$host\r\n";
      $header .= "Content-Type: application/x-www-form-urlencoded\r\n";
      $header .= "Content-Length: " . strlen($data) . "\r\n";
      $header .= "Connection: Keep-Alive\r\n\r\n";
      $fp = fsockopen ($host, 80, $errno, $errstr, 30);
      if (!$fp) {
        // HTTP ERROR
           $res="error";
        } else {
        fputs ($fp, $header);
        fputs ($fp, $data);
        while (!feof($fp)) {
           $res .= fgets ($fp, 1024);
        } // (end while)
        fclose ($fp);
      } // (end if)
      if ($res ==""){
         //It did not allow to post; therefore hit it with an ARG
         $ArgVzero = str_replace("+", "!~plus~!",
urlencode(stripslashes($data)));
         $res = file_get_contents("http://$host$path"."?".$ArgVzero);
      }
   }
}
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


And here is the code to insert at the top of your php code that receives
the post:
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   $ArgVzero = $argv[0];
   if ($ArgVzero <> ""){
      $ArgVzero = str_replace("!~plus~!", "+", $ArgVzero);
      $ArgVzero = urldecode($ArgVzero);
      $ArgVzero .= "&ArgHit=true";
      parse_str($ArgVzero, $_POST);
      echo "HTTP/1.1 ARG OK Date: ".date("F j, Y, g:i a")." GMT Server
Connection: File_Get_Contents using ?argv[0] arguments \r\n";
   }
   // All Done!  Now your script will work even with a "fake posted" hit.
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Hope it helps someone.  It was the only way I survived a migration to a
new server.

Best Regards,
Robison