User:Pizzahut/msqp.php: Difference between revisions

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m (This seems to be fixed on Valve's end - getting 130 to 150 servers now.)
(Getting an error when changing the source code, so I put the update on PasteBin.)
Tag: Replaced
 
(30 intermediate revisions by the same user not shown)
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This is a code example for querying a Half-Life master server using the PHP language. For querying more than 231 servers it needs to be extended. The purpose of this program is to get a list of TFC servers, there are only about 150 left at the time of writing so it doesn't check for more.
This is a code example for querying a Half-Life master server using the PHP language.<br>
<pre>
See also [[User:Pizzahut/test.php]] - a test script in PHP to check which master servers respond.
<?php


/*    Version history
* https://pastebin.com/D2mjg9Nb
 
1    Initial release.
2    Added option to retry same server if timeout occurs.
      (This is just a minor update, I should have released it as v1.1.)
2.1  Added more master servers.
2.1.1 Fixed a bug, program didn't terminate if all master servers time out.
2.1.2 Removed a now redundant variable.
*/
 
// Method 1: Try a different server if one is timing out.
// Method 2: Retry the same server if a timeout occurs.
$method = 1;
 
$servers = array(
"72.165.61.136:27010",
"68.142.72.250:27010",
"72.165.61.189:27010",
"72.165.61.190:27010",
"69.28.151.162:27010");
 
$server = "hl1master.steampowered.com";
 
function master_server_timeout(&$fp, $ip)
{
  $port = 27010;
  $timeout = 1;
 
  echo "Connecting to master server \"$ip\".\n";
 
  $fp = fsockopen("udp://$ip", $port, $errno, $errstr, $timeout);
  if (!$fp) exit("Error $errno : $errstr");
  stream_set_timeout($fp, $timeout);
 
  // region=world, filter: game=Team Fortress Classic
  if (!fwrite($fp, "1\xFF0.0.0.0:0\0\\gamedir\\tfc\0"))
  {
      fclose($fp);
      exit("fwrite error\n");
  }
 
  $s = bin2hex(fread($fp, 6));
  $info = stream_get_meta_data($fp);
  if ($info['timed_out'])
  {
      echo "Master server \"$ip\" timed out.\n";
      fclose($fp);
  } else {
      if ($s !== "ffffffff660a") {
        fclose($fp);
        exit("Expected ff ff ff ff 66 0a (hex) but got $s.");
      }
  }
  return $info['timed_out'];
}
 
if ($method == 1)
{
  $abort = 1;
  foreach ($servers as $server_address)
  {
      if (!master_server_timeout($fp, $server_address))
      {
        $abort = 0;
        break;
      }
  }
  if ($abort == 1)
      exit("All servers timed out, aborting.\n");
}
 
if ($method == 2)
{
  for ($i = 1; $i <= 10; $i++)
  {
      if (!master_server_timeout($fp, $server))
        break;
      if ($i == 10)
        exit("Giving up after 10 tries.\n");
      else
        echo "Retrying ($i).\n";
  }
}
 
$count = 0;
do {
  $a1 = ord(fread($fp,1));
  $info = stream_get_meta_data($fp);
  if ($info['timed_out']) {
      echo "Time out occured.\n";
      break;
  }
 
  // Let's always read the rest of the address, even if it starts with 0.
  // This may avoid subsequent problems, but I'm paranoid here.
  $a2 = ord(fread($fp,1));
  $a3 = ord(fread($fp,1));
  $a4 = ord(fread($fp,1));
  $a5 = ord(fread($fp,1))*256 + ord(fread($fp,1));
 
  if ($a1 != 0) {
      $count++;
      echo "$count $a1.$a2.$a3.$a4:$a5\n";
  }
} while ($a1 != 0);
echo "Retrieved $count servers.\n";
 
fclose($fp);
?>
</pre>

Latest revision as of 07:48, 16 October 2021

This is a code example for querying a Half-Life master server using the PHP language.
See also User:Pizzahut/test.php - a test script in PHP to check which master servers respond.

Retrieved from "https://developer.valvesoftware.com/w/index.php?title=User:Pizzahut/msqp.php&oldid=249880"