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A utilityclass (PHP4 only) to do serverstatus-queries against Halflife-Counterstrike servers
A utilityclass (PHP4 only) to do serverstatus-queries against Halflife-Counterstrike servers
<?
// Class CounterStrike
//
// Changelog:
//
Removed usort warning
Fixed
error on empty server
// Version 1.00 03/05/2001 Initial (& a bit messy ) release
//
// A utilityclass (PHP4 only) to do serverstatus-queries against Halflife/Counterstrike
servers
//
// The following functions are available:
//
// Function getServerInfo(serveraddress,serverport)
// Get info about servername,serveraddress,mapname,currentplayers & maxplayers.
//
// Function getServerPlayers(serveraddress,serverport)
// Get info about players currently playing on the server.
// Players are sortet by frags.
//
// Function getServerRules(serveraddress,serverport)
// Get info about serverrules/settings.
//
// All results are returned in membervariables:
//
//
// Function used to sort players by frags
// Needs to be defined globally in order for usort to call it
//
function fragsort ($a, $b) {
if ($a["frags"] == $b["frags"]) return 0;
if ($a["frags"] > $b["frags"]) {
return -1;
} else {
return 1;
}
}
Class CounterStrike {
var $m_playerinfo =""; // Info about
players
var $m_servervars =""; // Info about the
server current map, players etc
var $m_serverrules =""; // Serverrules
//
// Get exact time, used for timeout counting
//
function timenow() {
return doubleval(ereg_replace('^0\.([0-9]*) ([0-9]*)
$','\\2.\\1',microtime()));
}
//
// Read raw data from server
//
function getServerData($command,$serveraddress,$portnumber,$waittime) {
$serverdata ="";
$serverdatalen=0;
if ($waittime< 500) $waittime= 500;
if ($waittime>2000) $waittime=2000;
$waittime=doubleval($waittime/1000.0);
if (!$cssocket=fsockopen
("udp://".$serveraddress,$portnumber,$errnr)) {
$this->errmsg="No connection";
return "";
}
socket_set_blocking($cssocket,true);
socket_set_timeout($cssocket,0,500000);
fwrite($cssocket,$command,strlen($command));
// Mark
$starttime=$this->timenow();
do {
$serverdata.=fgetc($cssocket);
$serverdatalen++;
$socketstatus=socket_get_status($cssocket);
if ($this->timenow()>($starttime+$waittime)) {
$this->errmsg="Connection timed out";
fclose($cssocket);
return "";
}
} while ($socketstatus["unread_bytes"] );
fclose($cssocket);
return $serverdata;
}
function getnextstring(&$data) {
$temp="";
$counter=0;
while (ord($data[$counter++])!=0) $temp.=$data[$counter-1];
$data=substr($data,strlen($temp)+1);
return $temp;
}
function getnextbytevalue(&$data) {
$temp=ord($data[0]);
$data=substr($data,1);
return $temp;
}
function getnextfragvalue(&$data) {
$frags=ord($data[0])+(ord($data[1])<<8)+(ord($data[2])<<16)+
(ord($data[3])<<24);
if ($frags>=4294967294) $frags-=4294967296;
$data=substr($data,4);
return $frags;
}
function getnextplaytime(&$data) {
$decnumber=ord($data[0])+(ord($data[1])<<8)+(ord($data[2])
<<16)+(ord($data[3])<<24);
$binnumber=base_convert($decnumber,10,2);
while (strlen($binnumber) < 32) $binnumber="0".$binnumber;
$exp=abs(base_convert(substr($binnumber,1,8),2,10))-127;
if (substr($binnumber,0,1)=="1") $exp=0-$exp;
$man=1;$manadd=0.5;
for ($counter=9;$counter<32;$counter++) {
if (substr($binnumber,$counter,1)=="1")
$man+=$manadd;
$manadd=$manadd/2;
}
$time=round(pow(2,$exp)*$man);
$playtime="";
if ($time>3600) {
$playtime=sprintf("%2dh",$time/3600);
}
$time%=3600;
$playtime=$playtime.sprintf("%2dm",$time/60);
$time%=60;
$playtime=$playtime.sprintf("%2ds",$time);
$data=substr($data,5);
return $playtime;
}
//
// getServerRules
// Read rules/setup from the gameserver into m_serverrules
// Return true if successful
//
function getServerRules($serveraddress,$portnumber,$waittime) {
$cmd="\xFF\xFF\xFF\xFFrules\x00";
$serverdata=$this->getServerData
($cmd,$serveraddress,$portnumber,$waittime) ;
// Check length of returned data, if < 5 something went wrong
if (strlen($serverdata)<5) return false;
// Figure out how many rules there are
$rules=(ord($serverdata[5]))+(ord($serverdata[6])*256);
if ($rules!=0) {
// Strip OOB data
$serverdata=substr($serverdata,7);
for ($i=1;$i<=$rules;$i++) {
$rulename =$this-
>getnextstring($serverdata);
$rulevalue =$this->getnextstring
($serverdata);
$this->m_serverrules[$rulename]
=$rulevalue;
}
return true;
} else {
return false;
}
}
//
// getServerinfo
// Read information about the gameserver into m_servervars
// Serveraddress,servername,current map etc etc
// Return true if successful
//
function getServerInfo($serveraddress,$portnumber,$waittime) {
$cmd="\xFF\xFF\xFF\xFFinfo\x00";
$serverdata=$this->getServerData
($cmd,$serveraddress,$portnumber,$waittime) ;
// Check length of returned data, if < 5 something went wrong
if (strlen($serverdata)<5) return false;
// Strip OOB data
$serverdata=substr($serverdata,5);
$this->m_servervars["serveraddress"] =$this-
>getnextstring($serverdata);
$this->m_servervars["servername"]
=$this->getnextstring($serverdata);
$this->m_servervars["mapname"]
=$this->getnextstring($serverdata);
$this->m_servervars["game"]
=$this->getnextstring($serverdata);
$this->m_servervars["gamename"]
=$this->getnextstring($serverdata);
$this->m_servervars["currentplayers"] =$this-
>getnextbytevalue($serverdata);
$this->m_servervars["maxplayers"]
=$this->getnextbytevalue($serverdata);
return true;
}
//
// Get Playerinfo
// Read information about the players into m_playerinfo
// Name,frags,playtime
// Return true if successful
//
function getServerPlayers($serveraddress,$portnumber,$waittime) {
// Servercommand
$cmd="\xFF\xFF\xFF\xFFplayers\x00";
$serverdata=$this->getServerData
($cmd,$serveraddress,$portnumber,$waittime);
// Check length of returned data, if < 5 something went wrong
if (strlen($serverdata)<5) return false;
// Check number of players to read data for
$players=ord($serverdata[5]);
// Strip OOB data and other stuff
$serverdata=substr($serverdata,7);
for ($i=1;$i<=$players;$i++) {
$playername
=htmlspecialchars($this->getnextstring
($serverdata));
$frags
=$this->getnextfragvalue
($serverdata);
$playtime
=$this->getnextplaytime($serverdata);
$this->m_playerinfo[$i] =array
("name"=>$playername,"frags"=>$frags,"time"=>$playtime);
}
// Sort players in fragorder
if ($players>1) usort($this->m_playerinfo,"fragsort");
return true;
}
}
?>
