472 lines
11 KiB
PHP
472 lines
11 KiB
PHP
<?php
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/**
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* ManiaPlanet dedicated server Xml-RPC client
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*
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* @license http://www.gnu.org/licenses/lgpl.html LGPL License 3
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*/
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namespace Maniaplanet\DedicatedServer\Xmlrpc;
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if (!defined('LF'))
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{
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define('LF', "\n");
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}
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if (!defined('SIZE_MAX'))
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{
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define('SIZE_MAX', 4096*1024);
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}
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class Client
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{
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public $socket;
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public $message = false;
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public $cb_message = array();
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public $reqhandle;
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public $protocol = 0;
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static $received;
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static $sent;
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function bigEndianTest()
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{
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list($endiantest) = array_values(unpack('L1L', pack('V', 1)));
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if ($endiantest != 1)
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{
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if(!function_exists(__NAMESPACE__.'\\unpack'))
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{
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/**
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* The following code is a workaround for php's unpack function which
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* does not have the capability of unpacking double precision floats
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* that were packed in the opposite byte order of the current machine.
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*/
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function unpack($format, $data)
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{
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$ar = unpack($format, $data);
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$vals = array_values($ar);
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$f = explode('/', $format);
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$i = 0;
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foreach ($f as $f_k => $f_v)
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{
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$repeater = intval(substr($f_v, 1));
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if ($repeater == 0)
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{
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$repeater = 1;
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}
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if ($f_v{1} == '*')
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{
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$repeater = count($ar) - $i;
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}
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if ($f_v{0} != 'd')
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{
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$i += $repeater;
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continue;
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}
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$j = $i + $repeater;
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for ($a = $i; $a < $j; ++$a)
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{
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$p = pack('d', $vals[$i]);
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$p = strrev($p);
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list($vals[$i]) = array_values(unpack('d1d', $p));
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++$i;
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}
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}
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$a = 0;
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foreach ($ar as $ar_k => $ar_v)
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{
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$ar[$ar_k] = $vals[$a];
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++$a;
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}
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return $ar;
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}
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}
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}
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}
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function __construct($hostname = 'localhost', $port = 5000, $timeout)
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{
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$this->socket = false;
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$this->reqhandle = 0x80000000;
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$this->init($hostname, $port, $timeout);
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}
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function __destruct()
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{
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$this->terminate();
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}
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protected function init($hostname, $port, $timeout)
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{
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$this->bigEndianTest();
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// open connection
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$this->socket = @fsockopen($hostname, $port, $errno, $errstr, $timeout);
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if (!$this->socket)
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{
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throw new Exception("transport error - could not open socket (error: $errno, $errstr)", -32300);
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}
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// handshake
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$array_result = unpack('Vsize', fread($this->socket, 4));
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$size = $array_result['size'];
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if ($size > 64)
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{
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throw new Exception('transport error - wrong lowlevel protocol header', -32300);
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}
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$handshake = fread($this->socket, $size);
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if ($handshake == 'GBXRemote 1')
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{
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$this->protocol = 1;
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}
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elseif ($handshake == 'GBXRemote 2')
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{
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$this->protocol = 2;
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}
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else
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{
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throw new Exception('transport error - wrong lowlevel protocol version', -32300);
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}
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}
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function terminate()
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{
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if ($this->socket)
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{
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fclose($this->socket);
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$this->socket = false;
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}
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}
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protected function sendRequest(Request $request)
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{
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$xml = $request->getXml();
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@stream_set_timeout($this->socket, 20); // timeout 20 s (to write the request)
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// send request
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$this->reqhandle++;
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if ($this->protocol == 1)
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{
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$bytes = pack('Va*', strlen($xml), $xml);
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}
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else
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{
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$bytes = pack('VVa*', strlen($xml), $this->reqhandle, $xml);
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}
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$bytes_to_write = strlen($bytes);
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// increase sent counter ...
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self::$sent += $bytes_to_write;
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while ($bytes_to_write > 0)
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{
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$r = fwrite($this->socket, $bytes);
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if ($r === false || $r == 0)
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{
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throw new Exception('Connection interupted');
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}
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$bytes_to_write -= $r;
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if ($bytes_to_write == 0)
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{
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break;
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}
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$bytes = substr($bytes, $r);
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}
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}
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protected function getResult()
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{
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$contents = '';
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$contents_length = 0;
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do
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{
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$size = 0;
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$recvhandle = 0;
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@stream_set_timeout($this->socket, 5); // timeout 20 s (to read the reply header)
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// Get result
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if ($this->protocol == 1)
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{
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$contents = fread($this->socket, 4);
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if (strlen($contents) == 0)
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{
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throw new Exception('transport error - connection interrupted!', -32700);
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}
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$array_result = unpack('Vsize', $contents);
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$size = $array_result['size'];
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$recvhandle = $this->reqhandle;
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}
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else
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{
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$contents = fread($this->socket, 8);
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if (strlen($contents) == 0)
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{
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throw new Exception('transport error - connection interrupted!', -32700);
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}
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$array_result = unpack('Vsize/Vhandle', $contents);
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$size = $array_result['size'];
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$recvhandle = $array_result['handle'];
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// -- amd64 support --
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$bits = sprintf('%b', $recvhandle);
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if (strlen($bits) == 64)
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{
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$recvhandle = bindec(substr($bits, 32));
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}
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}
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if ($recvhandle == 0 || $size == 0)
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{
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throw new Exception('transport error - connection interrupted!', -32700);
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}
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if ($size > SIZE_MAX)
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{
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throw new Exception("transport error - answer too big ($size)", -32700);
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}
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self::$received += $size;
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$contents = '';
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$contents_length = 0;
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@stream_set_timeout($this->socket, 0, 10000); // timeout 10 ms (for successive reads until end)
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while ($contents_length < $size)
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{
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$contents .= fread($this->socket, $size-$contents_length);
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$contents_length = strlen($contents);
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}
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if (($recvhandle & 0x80000000) == 0)
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{
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// this is a callback, not our answer! handle= $recvhandle, xml-rpc= $contents
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// just add it to the message list for the user to read
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$new_cb_message = new Message($contents);
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if ($new_cb_message->parse() && $new_cb_message->messageType != 'fault')
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{
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array_push($this->cb_message, array($new_cb_message->methodName, $new_cb_message->params));
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}
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}
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}
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while ((int)$recvhandle != (int)$this->reqhandle);
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$this->message = new Message($contents);
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if (!$this->message->parse())
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{
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// XML error
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throw new Exception('parse error. not well formed', -32700);
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}
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// Is the message a fault?
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if ($this->message->messageType == 'fault')
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{
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throw new Exception($this->message->faultString, $this->message->faultCode);
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}
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return $this->message;
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}
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function query()
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{
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$args = func_get_args();
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$method = array_shift($args);
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if (!$this->socket || $this->protocol == 0)
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{
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throw new Exception('transport error - Client not initialized', -32300);
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}
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$request = new Request($method, $args);
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// Check if request is larger than 1024 Kbytes
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if ($request->getLength() > 1024*1024-8)
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{
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throw new Exception('transport error - request too large!', -32700);
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}
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$this->sendRequest($request);
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return $this->getResult();
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}
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// Non-blocking query method: doesn't read the response
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function queryIgnoreResult()
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{
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$args = func_get_args();
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$method = array_shift($args);
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if (!$this->socket || $this->protocol == 0)
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{
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throw new Exception('transport error - Client not initialized', -32300);
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}
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$request = new Request($method, $args);
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// Check if the request is greater than 1024 Kbytes to avoid errors
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// If the method is system.multicall, make two calls (possibly recursively)
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if ($request->getLength() > 1024*1024-8)
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{
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if ($method == 'system.multicall' && isset($args[0]))
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{
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$count = count($args[0]);
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// If count is 1, query cannot be reduced
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if ($count < 2)
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{
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throw new Exception('transport error - request too large!', -32700);
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}
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$length = floor($count/2);
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$args1 = array_slice($args[0], 0, $length);
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$args2 = array_slice($args[0], $length, ($count-$length));
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$res1 = $this->queryIgnoreResult('system.multicall', $args1);
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$res2 = $this->queryIgnoreResult('system.multicall', $args2);
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return ($res1 && $res2);
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}
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// If the method is not a multicall, just stop
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else
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{
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throw new Exception('transport error - request too large!', -32700);
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}
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}
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$this->sendRequest($request);
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}
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function getResponse()
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{
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// methodResponses can only have one param - return that
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return $this->message->params[0];
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}
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function readCallbacks($timeout = 2000)
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{
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if (!$this->socket || $this->protocol == 0)
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throw new Exception('transport error - Client not initialized', -32300);
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if ($this->protocol == 1)
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return false;
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// flo: moved to end
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//$something_received = count($this->cb_message)>0;
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$contents = '';
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$contents_length = 0;
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@stream_set_timeout($this->socket, 0, 10000); // timeout 10 ms (to read available data)
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// (assignment in arguments is forbidden since php 5.1.1)
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$read = array($this->socket);
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$write = NULL;
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$except = NULL;
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$nb = false;
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try
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{
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$nb = @stream_select($read, $write, $except, 0, $timeout);
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}
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catch (\Exception $e)
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{
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if (strpos($e->getMessage(), 'Invalid CRT') !== false)
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{
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$nb = true;
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}
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elseif (strpos($e->getMessage(), 'Interrupted system call') !== false)
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{
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return;
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}
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else
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{
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throw $e;
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}
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}
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// workaround for stream_select bug with amd64
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if ($nb !== false)
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{
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$nb = count($read);
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}
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while ($nb !== false && $nb > 0)
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{
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$timeout = 0; // we don't want to wait for the full time again, just flush the available data
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$size = 0;
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$recvhandle = 0;
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// Get result
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$contents = fread($this->socket, 8);
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if (strlen($contents) == 0)
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{
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throw new Exception('transport error - connection interrupted!', -32700);
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}
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$array_result = unpack('Vsize/Vhandle', $contents);
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$size = $array_result['size'];
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$recvhandle = $array_result['handle'];
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if ($recvhandle == 0 || $size == 0)
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{
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throw new Exception('transport error - connection interrupted!', -32700);
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}
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if ($size > SIZE_MAX)
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{
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throw new Exception("transport error - answer too big ($size)", -32700);
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}
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self::$received += $size;
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$contents = '';
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$contents_length = 0;
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while ($contents_length < $size)
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{
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$contents .= fread($this->socket, $size-$contents_length);
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$contents_length = strlen($contents);
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}
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if (($recvhandle & 0x80000000) == 0)
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{
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// this is a callback. handle= $recvhandle, xml-rpc= $contents
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//echo 'CALLBACK('.$contents_length.')[ '.$contents.' ]' . LF;
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$new_cb_message = new Message($contents);
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if ($new_cb_message->parse() && $new_cb_message->messageType != 'fault')
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{
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array_push($this->cb_message, array($new_cb_message->methodName, $new_cb_message->params));
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}
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// flo: moved to end ...
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// $something_received = true;
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}
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// (assignment in arguments is forbidden since php 5.1.1)
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$read = array($this->socket);
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$write = NULL;
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$except = NULL;
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try
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{
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$nb = @stream_select($read, $write, $except, 0, $timeout);
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}
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catch (\Exception $e)
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{
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if (strpos($e->getMessage(), 'Invalid CRT') !== false)
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{
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$nb = true;
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}
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else
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{
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throw $e;
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}
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}
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// workaround for stream_select bug with amd64
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if ($nb !== false)
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{
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$nb = count($read);
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}
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}
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return !empty($this->cb_message);
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}
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function getCallbackResponses()
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{
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// (look at the end of basic.php for an example)
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$messages = $this->cb_message;
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$this->cb_message = array();
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return $messages;
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}
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}
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?>
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