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1046 lines
22 KiB
1046 lines
22 KiB
<?php
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class SourceQueryException extends Exception
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{
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// Exception thrown by SourceQuery class
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}
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class SourceQuery
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{
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/**
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* Class written by xPaw
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*
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* Website: http://xpaw.ru
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* GitHub: https://github.com/xPaw/PHP-Source-Query-Class
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*
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* Special thanks to koraktor for his awesome Steam Condenser class,
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* I used it as a reference at some points.
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*/
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/**
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* Values returned by GetChallenge()
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*
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* TODO: Get rid of this? Improve? Do something else?
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*/
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const GETCHALLENGE_FAILED = 0;
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const GETCHALLENGE_ALL_CLEAR = 1;
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const GETCHALLENGE_CONTAINS_ANSWER = 2;
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/**
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* Engines
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*/
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const GOLDSOURCE = 0;
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const SOURCE = 1;
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/**
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* Packets sent
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*/
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const A2S_PING = 0x69;
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const A2S_INFO = 0x54;
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const A2S_PLAYER = 0x55;
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const A2S_RULES = 0x56;
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/**
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* Packets received
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*/
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const S2A_PING = 0x6A;
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const S2A_CHALLENGE = 0x41;
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const S2A_INFO = 0x49;
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const S2A_INFO_OLD = 0x6D; // Old GoldSource, HLTV uses it
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const S2A_PLAYER = 0x44;
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const S2A_RULES = 0x45;
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const S2A_RCON = 0x6C;
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/**
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* Source rcon sent
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*/
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const SERVERDATA_EXECCOMMAND = 2;
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const SERVERDATA_AUTH = 3;
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/**
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* Source rcon received
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*/
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const SERVERDATA_RESPONSE_VALUE = 0;
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const SERVERDATA_AUTH_RESPONSE = 2;
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/**
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* Points to rcon class
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*
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* @var SourceQueryRcon
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*/
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private $Rcon;
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/**
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* Points to buffer class
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*
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* @var SourceQueryBuffer
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*/
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private $Buffer;
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/**
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* Points to socket class
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*
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* @var SourceQuerySocket
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*/
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private $Socket;
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/**
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* True if connection is open, false if not
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*
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* @var bool
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*/
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private $Connected;
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/**
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* Contains challenge
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*
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* @var string
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*/
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private $Challenge;
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public function __construct( )
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{
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$this->Buffer = new SourceQueryBuffer( );
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$this->Socket = new SourceQuerySocket( $this->Buffer );
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$this->Rcon = new SourceQueryRcon( $this->Buffer, $this->Socket );
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}
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public function __destruct( )
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{
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$this->Disconnect( );
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}
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/**
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* Opens connection to server
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*
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* @param string $Ip Server ip
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* @param int $Port Server port
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* @param int $Timeout Timeout period
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* @param int $Engine Engine the server runs on (goldsource, source)
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*
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* @throws SourceQueryException
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* @throws InvalidArgumentException If timeout is not an integer
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*/
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public function Connect( $Ip, $Port, $Timeout = 3, $Engine = self :: SOURCE )
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{
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$this->Disconnect( );
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$this->Buffer->Reset( );
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$this->Challenge = 0;
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if( !is_int( $Timeout ) || $Timeout < 0 )
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{
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throw new InvalidArgumentException( 'Timeout must be an integer.' );
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}
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if( !$this->Socket->Open( $Ip, (int)$Port, $Timeout, (int)$Engine ) )
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{
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throw new SourceQueryException( 'Can\'t connect to the server.' );
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}
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$this->Connected = true;
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}
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/**
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* Closes all open connections
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*/
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public function Disconnect( )
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{
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$this->Connected = false;
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$this->Socket->Close( );
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$this->Rcon->Close( );
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}
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/**
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* Sends ping packet to the server
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* NOTE: This may not work on some games (TF2 for example)
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*
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* @return bool True on success, false on failure
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*/
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public function Ping( )
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{
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if( !$this->Connected )
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{
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return false;
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}
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$this->Socket->Write( self :: A2S_PING );
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$this->Socket->Read( );
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return $this->Buffer->GetByte( ) == self :: S2A_PING;
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}
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/**
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* Get server information
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*
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* @throws SourceQueryException
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*
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* @return bool|array Returns array with information on success, false on failure
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*/
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public function GetInfo( )
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{
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if( !$this->Connected )
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{
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return false;
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}
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$this->Socket->Write( self :: A2S_INFO, "Source Engine Query\0" );
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$this->Socket->Read( );
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$Type = $this->Buffer->GetByte( );
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if( $Type == 0 )
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{
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return false;
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}
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// Old GoldSource protocol, HLTV still uses it
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if( $Type == self :: S2A_INFO_OLD && $this->Socket->Engine == self :: GOLDSOURCE )
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{
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/**
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* If we try to read data again, and we get the result with type S2A_INFO (0x49)
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* That means this server is running dproto,
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* Because it sends answer for both protocols
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*/
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$Server[ 'Address' ] = $this->Buffer->GetString( );
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$Server[ 'HostName' ] = $this->Buffer->GetString( );
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$Server[ 'Map' ] = $this->Buffer->GetString( );
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$Server[ 'ModDir' ] = $this->Buffer->GetString( );
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$Server[ 'ModDesc' ] = $this->Buffer->GetString( );
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$Server[ 'Players' ] = $this->Buffer->GetByte( );
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$Server[ 'MaxPlayers' ] = $this->Buffer->GetByte( );
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$Server[ 'Protocol' ] = $this->Buffer->GetByte( );
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$Server[ 'Dedicated' ] = Chr( $this->Buffer->GetByte( ) );
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$Server[ 'Os' ] = Chr( $this->Buffer->GetByte( ) );
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$Server[ 'Password' ] = $this->Buffer->GetByte( ) == 1;
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$Server[ 'IsMod' ] = $this->Buffer->GetByte( ) == 1;
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if( $Server[ 'IsMod' ] )
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{
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$Mod[ 'Url' ] = $this->Buffer->GetString( );
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$Mod[ 'Download' ] = $this->Buffer->GetString( );
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$this->Buffer->Get( 1 ); // NULL byte
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$Mod[ 'Version' ] = $this->Buffer->GetLong( );
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$Mod[ 'Size' ] = $this->Buffer->GetLong( );
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$Mod[ 'ServerSide' ] = $this->Buffer->GetByte( ) == 1;
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$Mod[ 'CustomDLL' ] = $this->Buffer->GetByte( ) == 1;
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}
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$Server[ 'Secure' ] = $this->Buffer->GetByte( ) == 1;
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$Server[ 'Bots' ] = $this->Buffer->GetByte( );
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if( isset( $Mod ) )
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{
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$Server[ 'Mod' ] = $Mod;
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}
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return $Server;
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}
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if( $Type != self :: S2A_INFO )
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{
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throw new SourceQueryException( 'GetInfo: Packet header mismatch. (' . $Type . ')' );
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}
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$Server[ 'Protocol' ] = $this->Buffer->GetByte( );
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$Server[ 'HostName' ] = $this->Buffer->GetString( );
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$Server[ 'Map' ] = $this->Buffer->GetString( );
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$Server[ 'ModDir' ] = $this->Buffer->GetString( );
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$Server[ 'ModDesc' ] = $this->Buffer->GetString( );
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$Server[ 'AppID' ] = $this->Buffer->GetShort( );
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$Server[ 'Players' ] = $this->Buffer->GetByte( );
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$Server[ 'MaxPlayers' ] = $this->Buffer->GetByte( );
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$Server[ 'Bots' ] = $this->Buffer->GetByte( );
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$Server[ 'Dedicated' ] = Chr( $this->Buffer->GetByte( ) );
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$Server[ 'Os' ] = Chr( $this->Buffer->GetByte( ) );
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$Server[ 'Password' ] = $this->Buffer->GetByte( ) == 1;
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$Server[ 'Secure' ] = $this->Buffer->GetByte( ) == 1;
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// The Ship
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if( $Server[ 'AppID' ] == 2400 )
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{
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$Server[ 'GameMode' ] = $this->Buffer->GetByte( );
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$Server[ 'WitnessCount' ] = $this->Buffer->GetByte( );
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$Server[ 'WitnessTime' ] = $this->Buffer->GetByte( );
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}
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$Server[ 'Version' ] = $this->Buffer->GetString( );
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// Extra Data Flags
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if( $this->Buffer->Remaining( ) > 0 )
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{
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$Flags = $this->Buffer->GetByte( );
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// The server's game port
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if( $Flags & 0x80 )
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{
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$Server[ 'GamePort' ] = $this->Buffer->GetShort( );
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}
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// The server's SteamID - does this serve any purpose?
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if( $Flags & 0x10 )
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{
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$Server[ 'ServerID' ] = $this->Buffer->GetUnsignedLong( ) | ( $this->Buffer->GetUnsignedLong( ) << 32 );
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}
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// The spectator port and then the spectator server name
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if( $Flags & 0x40 )
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{
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$Server[ 'SpecPort' ] = $this->Buffer->GetShort( );
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$Server[ 'SpecName' ] = $this->Buffer->GetString( );
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}
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// The game tag data string for the server
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if( $Flags & 0x20 )
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{
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$Server[ 'GameTags' ] = $this->Buffer->GetString( );
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}
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// 0x01 - The server's 64-bit GameID
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}
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return $Server;
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}
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/**
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* Get players on the server
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*
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* @throws SourceQueryException
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*
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* @return bool|array Returns array with players on success, false on failure
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*/
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public function GetPlayers( )
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{
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if( !$this->Connected )
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{
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return false;
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}
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switch( $this->GetChallenge( self :: A2S_PLAYER, self :: S2A_PLAYER ) )
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{
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case self :: GETCHALLENGE_FAILED:
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{
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return false;
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}
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case self :: GETCHALLENGE_ALL_CLEAR:
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{
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$this->Socket->Write( self :: A2S_PLAYER, $this->Challenge );
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$this->Socket->Read( );
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$Type = $this->Buffer->GetByte( );
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if( $Type == 0 )
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{
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return false;
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}
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else if( $Type != self :: S2A_PLAYER )
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{
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throw new SourceQueryException( 'GetPlayers: Packet header mismatch. (' . $Type . ')' );
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}
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break;
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}
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}
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$Players = Array( );
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$Count = $this->Buffer->GetByte( );
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while( $Count-- > 0 && $this->Buffer->Remaining( ) > 0 )
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{
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$Player[ 'Id' ] = $this->Buffer->GetByte( ); // PlayerID, is it just always 0?
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$Player[ 'Name' ] = $this->Buffer->GetString( );
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$Player[ 'Frags' ] = $this->Buffer->GetLong( );
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$Player[ 'Time' ] = (int)$this->Buffer->GetFloat( );
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$Player[ 'TimeF' ] = GMDate( ( $Player[ 'Time' ] > 3600 ? "H:i:s" : "i:s" ), $Player[ 'Time' ] );
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$Players[ ] = $Player;
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}
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return $Players;
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}
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/**
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* Get rules (cvars) from the server
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*
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* @throws SourceQueryException
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*
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* @return bool|array Returns array with rules on success, false on failure
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*/
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public function GetRules( )
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{
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if( !$this->Connected )
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{
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return false;
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}
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switch( $this->GetChallenge( self :: A2S_RULES, self :: S2A_RULES ) )
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{
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case self :: GETCHALLENGE_FAILED:
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{
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return false;
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}
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case self :: GETCHALLENGE_ALL_CLEAR:
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{
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$this->Socket->Write( self :: A2S_RULES, $this->Challenge );
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$this->Socket->Read( );
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$Type = $this->Buffer->GetByte( );
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if( $Type == 0 )
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{
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return false;
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}
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else if( $Type != self :: S2A_RULES )
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{
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throw new SourceQueryException( 'GetRules: Packet header mismatch. (' . $Type . ')' );
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}
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break;
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}
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}
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$Rules = Array( );
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$Count = $this->Buffer->GetShort( );
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while( $Count-- > 0 && $this->Buffer->Remaining( ) > 0 )
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{
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$Rule = $this->Buffer->GetString( );
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$Value = $this->Buffer->GetString( );
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if( !Empty( $Rule ) )
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{
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$Rules[ $Rule ] = $Value;
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}
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}
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return $Rules;
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}
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/**
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* Get challenge (used for players/rules packets)
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*
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* @return bool True if all went well, false if server uses old GoldSource protocol, and it already contains answer
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*/
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private function GetChallenge( $Header, $ExpectedResult )
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{
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if( $this->Challenge )
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{
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return self :: GETCHALLENGE_ALL_CLEAR;
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}
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$this->Socket->Write( $Header, 0xFFFFFFFF );
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$this->Socket->Read( );
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$Type = $this->Buffer->GetByte( );
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switch( $Type )
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{
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case self :: S2A_CHALLENGE:
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{
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$this->Challenge = $this->Buffer->Get( 4 );
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return self :: GETCHALLENGE_ALL_CLEAR;
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}
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case $ExpectedResult:
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{
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// Goldsource (HLTV)
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return self :: GETCHALLENGE_CONTAINS_ANSWER;
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}
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case 0:
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{
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return self :: GETCHALLENGE_FAILED;
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}
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default:
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{
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throw new SourceQueryException( 'GetChallenge: Packet header mismatch. (' . $Type . ')' );
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}
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}
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}
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/**
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* Sets rcon password, for future use in Rcon()
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*
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* @param string $Password Rcon Password
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*
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* @return bool True on success, false on failure
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*/
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public function SetRconPassword( $Password )
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{
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if( !$this->Connected )
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{
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return false;
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}
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$this->Rcon->Open( );
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return $this->Rcon->Authorize( $Password );
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}
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/**
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* Sets rcon password, for future use in Rcon()
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*
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* @param string $Command Command to execute on the server
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*
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* @return bool|string Answer from server in string, false on failure
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*/
|
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public function Rcon( $Command )
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{
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if( !$this->Connected )
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{
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return false;
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}
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return $this->Rcon->Command( $Command );
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}
|
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}
|
|
|
|
class SourceQuerySocket
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{
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public $Socket;
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public $Engine;
|
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|
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public $Ip;
|
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public $Port;
|
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public $Timeout;
|
|
|
|
/**
|
|
* Points to buffer class
|
|
*
|
|
* @var SourceQueryBuffer
|
|
*/
|
|
private $Buffer;
|
|
|
|
public function __construct( $Buffer )
|
|
{
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$this->Buffer = $Buffer;
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}
|
|
|
|
public function Close( )
|
|
{
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if( $this->Socket )
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{
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FClose( $this->Socket );
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$this->Socket = null;
|
|
}
|
|
}
|
|
|
|
public function Open( $Ip, $Port, $Timeout, $Engine )
|
|
{
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$this->Timeout = $Timeout;
|
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$this->Engine = $Engine;
|
|
$this->Port = $Port;
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$this->Ip = $Ip;
|
|
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$this->Socket = FSockOpen( 'udp://' . $Ip, $Port, $ErrNo, $ErrStr, $Timeout );
|
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|
if( $ErrNo || !$this->Socket )
|
|
{
|
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throw new Exception( 'Could not create socket: ' . $ErrStr );
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}
|
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|
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Stream_Set_Timeout( $this->Socket, $Timeout );
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Stream_Set_Blocking( $this->Socket, true );
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return true;
|
|
}
|
|
|
|
public function Write( $Header, $String = '' )
|
|
{
|
|
$Command = Pack( 'ccccca*', 0xFF, 0xFF, 0xFF, 0xFF, $Header, $String );
|
|
$Length = StrLen( $Command );
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return $Length === FWrite( $this->Socket, $Command, $Length );
|
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}
|
|
|
|
public function Read( $Length = 1400 )
|
|
{
|
|
$this->Buffer->Set( FRead( $this->Socket, $Length ) );
|
|
|
|
if( $this->Buffer->Remaining( ) > 0 && $this->Buffer->GetLong( ) == -2 )
|
|
{
|
|
$Packets = Array( );
|
|
$IsCompressed = false;
|
|
$ReadMore = false;
|
|
|
|
do
|
|
{
|
|
$RequestID = $this->Buffer->GetLong( );
|
|
|
|
switch( $this->Engine )
|
|
{
|
|
case SourceQuery :: GOLDSOURCE:
|
|
{
|
|
$PacketCountAndNumber = $this->Buffer->GetByte( );
|
|
$PacketCount = $PacketCountAndNumber & 0xF;
|
|
$PacketNumber = $PacketCountAndNumber >> 4;
|
|
|
|
break;
|
|
}
|
|
case SourceQuery :: SOURCE:
|
|
{
|
|
$IsCompressed = ( $RequestID & 0x80000000 ) != 0;
|
|
$PacketCount = $this->Buffer->GetByte( );
|
|
$PacketNumber = $this->Buffer->GetByte( ) + 1;
|
|
|
|
if( $IsCompressed )
|
|
{
|
|
$this->Buffer->GetLong( ); // Split size
|
|
|
|
$PacketChecksum = $this->Buffer->GetUnsignedLong( );
|
|
}
|
|
else
|
|
{
|
|
$this->Buffer->GetShort( ); // Split size
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
$Packets[ $PacketNumber ] = $this->Buffer->Get( );
|
|
|
|
$ReadMore = $PacketCount > sizeof( $Packets );
|
|
}
|
|
while( $ReadMore && $this->Sherlock( $Length ) );
|
|
|
|
$Buffer = Implode( $Packets );
|
|
|
|
// TODO: Test this
|
|
if( $IsCompressed )
|
|
{
|
|
// Let's make sure this function exists, it's not included in PHP by default
|
|
if( !Function_Exists( 'bzdecompress' ) )
|
|
{
|
|
throw new RuntimeException( 'Received compressed packet, PHP doesn\'t have Bzip2 library installed, can\'t decompress.' );
|
|
}
|
|
|
|
$Data = bzdecompress( $Data );
|
|
|
|
if( CRC32( $Data ) != $PacketChecksum )
|
|
{
|
|
throw new SourceQueryException( 'CRC32 checksum mismatch of uncompressed packet data.' );
|
|
}
|
|
}
|
|
|
|
$this->Buffer->Set( SubStr( $Buffer, 4 ) );
|
|
}
|
|
}
|
|
|
|
private function Sherlock( $Length )
|
|
{
|
|
$Data = FRead( $this->Socket, $Length );
|
|
|
|
if( StrLen( $Data ) < 4 )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
$this->Buffer->Set( $Data );
|
|
|
|
return $this->Buffer->GetLong( ) == -2;
|
|
}
|
|
}
|
|
|
|
class SourceQueryRcon
|
|
{
|
|
/**
|
|
* Points to buffer class
|
|
*
|
|
* @var SourceQueryBuffer
|
|
*/
|
|
private $Buffer;
|
|
|
|
/**
|
|
* Points to socket class
|
|
*
|
|
* @var SourceQuerySocket
|
|
*/
|
|
private $Socket;
|
|
|
|
private $RconSocket;
|
|
private $RconPassword;
|
|
private $RconRequestId;
|
|
private $RconChallenge;
|
|
|
|
public function __construct( $Buffer, $Socket )
|
|
{
|
|
$this->Buffer = $Buffer;
|
|
$this->Socket = $Socket;
|
|
}
|
|
|
|
public function Close( )
|
|
{
|
|
if( $this->RconSocket )
|
|
{
|
|
FClose( $this->RconSocket );
|
|
|
|
$this->RconSocket = null;
|
|
}
|
|
|
|
$this->RconChallenge = 0;
|
|
$this->RconRequestId = 0;
|
|
$this->RconPassword = 0;
|
|
}
|
|
|
|
public function Open( )
|
|
{
|
|
if( !$this->RconSocket && $this->Socket->Engine == SourceQuery :: SOURCE )
|
|
{
|
|
$this->RconSocket = FSockOpen( $this->Socket->Ip, $this->Socket->Port, $ErrNo, $ErrStr, $this->Socket->Timeout );
|
|
|
|
if( $ErrNo || !$this->RconSocket )
|
|
{
|
|
throw new SourceQueryException( 'Can\'t connect to RCON server: ' . $ErrStr );
|
|
}
|
|
|
|
Stream_Set_Timeout( $this->RconSocket, $this->Socket->Timeout );
|
|
Stream_Set_Blocking( $this->RconSocket, true );
|
|
}
|
|
}
|
|
|
|
public function Write( $Header, $String = '' )
|
|
{
|
|
switch( $this->Socket->Engine )
|
|
{
|
|
case SourceQuery :: GOLDSOURCE:
|
|
{
|
|
$Command = Pack( 'cccca*', 0xFF, 0xFF, 0xFF, 0xFF, $String );
|
|
$Length = StrLen( $Command );
|
|
|
|
return $Length === FWrite( $this->Socket->Socket, $Command, $Length );
|
|
}
|
|
case SourceQuery :: SOURCE:
|
|
{
|
|
// Pack the packet together
|
|
$Command = Pack( 'VV', ++$this->RequestId, $Header ) . $String . "\x00\x00\x00";
|
|
|
|
// Prepend packet length
|
|
$Command = Pack( 'V', StrLen( $Command ) ) . $Command;
|
|
$Length = StrLen( $Command );
|
|
|
|
return $Length === FWrite( $this->RconSocket, $Command, $Length );
|
|
}
|
|
}
|
|
}
|
|
|
|
public function Read( $Length = 1400 )
|
|
{
|
|
switch( $this->Socket->Engine )
|
|
{
|
|
case SourceQuery :: GOLDSOURCE:
|
|
{
|
|
// GoldSource RCON has same structure as Query
|
|
$this->Socket->Read( );
|
|
|
|
if( $this->Buffer->GetByte( ) != SourceQuery :: S2A_RCON )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
$Buffer = $this->Buffer->Get( );
|
|
$Trimmed = Trim( $Buffer );
|
|
|
|
if( $Trimmed == 'Bad rcon_password.'
|
|
|| $Trimmed == 'You have been banned from this server.' )
|
|
{
|
|
throw new SourceQueryException( $Trimmed );
|
|
}
|
|
|
|
$ReadMore = false;
|
|
|
|
// There is no indentifier of the end, so we just need to continue reading
|
|
// TODO: Needs to be looked again, it causes timeouts
|
|
do
|
|
{
|
|
$this->Socket->Read( );
|
|
|
|
$ReadMore = $this->Buffer->Remaining( ) > 0 && $this->Buffer->GetByte( ) == SourceQuery :: S2A_RCON;
|
|
|
|
if( $ReadMore )
|
|
{
|
|
$Packet = $this->Buffer->Get( );
|
|
$Buffer .= SubStr( $Packet, 0, -2 );
|
|
|
|
// Let's assume if this packet is not long enough, there are no more after this one
|
|
$ReadMore = StrLen( $Packet ) > 1000; // use 1300?
|
|
}
|
|
}
|
|
while( $ReadMore );
|
|
|
|
$this->Buffer->Set( Trim( $Buffer ) );
|
|
|
|
break;
|
|
}
|
|
case SourceQuery :: SOURCE:
|
|
{
|
|
$this->Buffer->Set( FRead( $this->RconSocket, $Length ) );
|
|
|
|
$Buffer = "";
|
|
|
|
$PacketSize = $this->Buffer->GetLong( );
|
|
|
|
$Buffer .= $this->Buffer->Get( );
|
|
|
|
// TODO: multi packet reading
|
|
|
|
$this->Buffer->Set( $Buffer );
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
public function Command( $Command )
|
|
{
|
|
if( !$this->RconChallenge )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
$Buffer = false;
|
|
|
|
switch( $this->Socket->Engine )
|
|
{
|
|
case SourceQuery :: GOLDSOURCE:
|
|
{
|
|
$this->Write( 0, 'rcon ' . $this->RconChallenge . ' "' . $this->RconPassword . '" ' . $Command . "\0" );
|
|
$this->Read( );
|
|
|
|
$Buffer = $this->Buffer->Get( );
|
|
|
|
break;
|
|
}
|
|
case SourceQuery :: SOURCE:
|
|
{
|
|
$this->Write( SourceQuery :: SERVERDATA_EXECCOMMAND, $Command );
|
|
$this->Read( );
|
|
|
|
$RequestID = $this->Buffer->GetLong( );
|
|
$Type = $this->Buffer->GetLong( );
|
|
|
|
if( $Type == SourceQuery :: SERVERDATA_AUTH_RESPONSE )
|
|
{
|
|
throw new SourceQueryException( 'Bad rcon_password.' );
|
|
}
|
|
else if( $Type != SourceQuery :: SERVERDATA_RESPONSE_VALUE )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// TODO: It should use GetString, but there are no null bytes at the end, why?
|
|
// $Buffer = $this->Buffer->GetString( );
|
|
$Buffer = $this->Buffer->Get( );
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $Buffer;
|
|
}
|
|
|
|
public function Authorize( $Password )
|
|
{
|
|
$this->RconPassword = $Password;
|
|
|
|
switch( $this->Socket->Engine )
|
|
{
|
|
case SourceQuery :: GOLDSOURCE:
|
|
{
|
|
$this->Write( 0, 'challenge rcon' );
|
|
$this->Socket->Read( );
|
|
|
|
if( $this->Buffer->Get( 14 ) != 'challenge rcon' )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
$this->RconChallenge = Trim( $this->Buffer->Get( ) );
|
|
|
|
break;
|
|
}
|
|
case SourceQuery :: SOURCE:
|
|
{
|
|
$this->Write( SourceQuery :: SERVERDATA_AUTH, $Password );
|
|
$this->Read( );
|
|
|
|
$RequestID = $this->Buffer->GetLong( );
|
|
$Type = $this->Buffer->GetLong( );
|
|
|
|
// If we receive SERVERDATA_RESPONSE_VALUE, then we need to read again
|
|
// More info: https://developer.valvesoftware.com/wiki/Source_RCON_Protocol#Additional_Comments
|
|
|
|
if( $Type == SourceQuery :: SERVERDATA_RESPONSE_VALUE )
|
|
{
|
|
$this->Read( );
|
|
|
|
$RequestID = $this->Buffer->GetLong( );
|
|
$Type = $this->Buffer->GetLong( );
|
|
}
|
|
|
|
if( $RequestID == -1 || $Type != SourceQuery :: SERVERDATA_AUTH_RESPONSE )
|
|
{
|
|
throw new SourceQueryException( 'RCON authorization failed.' );
|
|
}
|
|
|
|
$this->RconChallenge = 1;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
class SourceQueryBuffer
|
|
{
|
|
/**
|
|
* Buffer
|
|
*
|
|
* @var string
|
|
*/
|
|
private $Buffer;
|
|
|
|
/**
|
|
* Buffer length
|
|
*
|
|
* @var int
|
|
*/
|
|
private $Length;
|
|
|
|
/**
|
|
* Current position in buffer
|
|
*
|
|
* @var int
|
|
*/
|
|
private $Position;
|
|
|
|
/**
|
|
* Sets buffer
|
|
*
|
|
* @param string $Buffer Buffer
|
|
*/
|
|
public function Set( $Buffer )
|
|
{
|
|
$this->Buffer = $Buffer;
|
|
$this->Length = StrLen( $Buffer );
|
|
$this->Position = 0;
|
|
}
|
|
|
|
/**
|
|
* Resets buffer
|
|
*/
|
|
public function Reset( )
|
|
{
|
|
$this->Buffer = "";
|
|
$this->Length = 0;
|
|
$this->Position = 0;
|
|
}
|
|
|
|
/**
|
|
* Get remaining bytes
|
|
*
|
|
* @return int Remaining bytes in buffer
|
|
*/
|
|
public function Remaining( )
|
|
{
|
|
return $this->Length - $this->Position;
|
|
}
|
|
|
|
/**
|
|
* Gets data from buffer
|
|
*
|
|
* @param int $Length Bytes to read
|
|
*
|
|
* @return string
|
|
*/
|
|
public function Get( $Length = -1 )
|
|
{
|
|
if( $Length == 0 )
|
|
{
|
|
// Why even bother
|
|
return "";
|
|
}
|
|
|
|
$Remaining = $this->Remaining( );
|
|
|
|
if( $Length == -1 )
|
|
{
|
|
$Length = $Remaining;
|
|
}
|
|
else if( $Length > $Remaining )
|
|
{
|
|
return "";
|
|
}
|
|
|
|
$Data = SubStr( $this->Buffer, $this->Position, $Length );
|
|
|
|
$this->Position += $Length;
|
|
|
|
return $Data;
|
|
}
|
|
|
|
/**
|
|
* Get byte from buffer
|
|
*
|
|
* @return int
|
|
*/
|
|
public function GetByte( )
|
|
{
|
|
return Ord( $this->Get( 1 ) );
|
|
}
|
|
|
|
public function GetShort( )
|
|
{
|
|
$Data = UnPack( 'v', $this->Get( 2 ) );
|
|
|
|
return $Data[ 1 ];
|
|
}
|
|
|
|
public function GetLong( )
|
|
{
|
|
$Data = UnPack( 'l', $this->Get( 4 ) );
|
|
|
|
return $Data[ 1 ];
|
|
}
|
|
|
|
public function GetFloat( )
|
|
{
|
|
$Data = UnPack( 'f', $this->Get( 4 ) );
|
|
|
|
return $Data[ 1 ];
|
|
}
|
|
|
|
public function GetUnsignedLong( )
|
|
{
|
|
$Data = UnPack( 'V', $this->Get( 4 ) );
|
|
|
|
return $Data[ 1 ];
|
|
}
|
|
|
|
/**
|
|
* Read one string from buffer ending with null byte
|
|
*
|
|
* @return string String
|
|
*/
|
|
public function GetString( )
|
|
{
|
|
$ZeroBytePosition = StrPos( $this->Buffer, "\0", $this->Position );
|
|
|
|
if( $ZeroBytePosition === false )
|
|
{
|
|
$String = "";
|
|
}
|
|
else
|
|
{
|
|
$String = $this->Get( $ZeroBytePosition - $this->Position );
|
|
|
|
$this->Position++;
|
|
}
|
|
|
|
return $String;
|
|
}
|
|
} |