DayZ-Stat-Server/GameQ/Protocols/Arma3.php

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2021-02-03 11:36:24 +01:00
<?php
/**
* This file is part of GameQ.
*
* GameQ is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GameQ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
namespace GameQ\Protocols;
use GameQ\Buffer;
use GameQ\Result;
/**
* Class Armed Assault 3
*
* Rules protocol reference: https://community.bistudio.com/wiki/Arma_3_ServerBrowserProtocol2
*
* @package GameQ\Protocols
* @author Austin Bischoff <austin@codebeard.com>
* @author Memphis017 <https://github.com/Memphis017>
*/
class Arma3 extends Source
{
/**
* Defines the names for the specific game DLCs
*
* @var array
*/
protected $dlcNames = [
'af82811b' => 'Karts',
'94f76a1a' => 'Marksmen',
'd0356eec' => 'Helicopters',
'19984a71' => 'Zeus',
'7fb4b1f3' => 'Apex',
'49c2c12b' => 'Jets',
'7e766e18' => 'Laws of War',
'99d71f90' => 'Malden',
'a8b10cdf' => 'Tac-Ops',
'37680ce8' => 'Tanks',
'43f9c377' => 'Contact',
'c4979557' => 'Enoch',
];
/**
* String name of this protocol class
*
* @type string
*/
protected $name = 'arma3';
/**
* Longer string name of this protocol class
*
* @type string
*/
protected $name_long = "Arma3";
/**
* Query port = client_port + 1
*
* @type int
*/
protected $port_diff = 1;
/**
* Process the rules since Arma3 changed their response for rules
*
* @param Buffer $buffer
*
* @return array
* @throws \GameQ\Exception\Protocol
*/
protected function processRules(Buffer $buffer)
{
// Total number of packets, burn it
$buffer->readInt16();
// Will hold the data string
$data = '';
// Loop until we run out of strings
while ($buffer->getLength()) {
// Burn the delimiters (i.e. \x01\x04\x00)
$buffer->readString();
// Add the data to the string, we are reassembling it
$data .= $buffer->readString();
}
// Restore escaped sequences
$data = str_replace(["\x01\x01", "\x01\x02", "\x01\x03"], ["\x01", "\x00", "\xFF"], $data);
// Make a new buffer with the reassembled data
$responseBuffer = new Buffer($data);
// Kill the old buffer, should be empty
unset($buffer, $data);
// Set the result to a new result instance
$result = new Result();
// Get results
$result->add('rules_protocol_version', $responseBuffer->readInt8());
$result->add('overflow', $responseBuffer->readInt8());
$dlcBit = decbin($responseBuffer->readInt8()); // Grab DLC bit 1 and use it later
$dlcBit2 = decbin($responseBuffer->readInt8()); // Grab DLC bit 2 and use it later
$dlcCount = substr_count($dlcBit, '1') + substr_count($dlcBit2, '1'); // Count the DLCs
// Grab difficulty so we can man handle it...
$difficulty = $responseBuffer->readInt8();
// Process difficulty
$result->add('3rd_person', $difficulty >> 7);
$result->add('advanced_flight_mode', ($difficulty >> 6) & 1);
$result->add('difficulty_ai', ($difficulty >> 3) & 3);
$result->add('difficulty_level', $difficulty & 3);
unset($difficulty);
// Crosshair
$result->add('crosshair', $responseBuffer->readInt8());
// Loop over the DLC bit so we can pull in the info for the DLC (if enabled)
for ($x = 0; $x < $dlcCount; $x++) {
$dlcHash = dechex($responseBuffer->readInt32());
isset($this->dlcNames[$dlcHash]) ?
$result->addSub('dlcs', 'name', $this->dlcNames[$dlcHash])
: $result->addSub('dlcs', 'name', 'Unknown');
$result->addSub('dlcs', 'hash', $dlcHash);
}
// No longer needed
unset($dlcBit, $dlcBit2, $dlcCount, $dlcHash);
// Grab the mod count
$modCount = $responseBuffer->readInt8();
// Add mod count
$result->add('mod_count', $modCount);
// Loop the mod count and add them
for ($x = 0; $x < $modCount; $x++) {
// Add the mod to the list
$result->addSub('mods', 'hash', dechex($responseBuffer->readInt32()));
$result->addSub('mods', 'steam_id', hexdec($responseBuffer->readPascalString(0, true)));
$result->addSub('mods', 'name', $responseBuffer->readPascalString(0, true));
}
unset($modCount, $x);
// Get the signatures count
$signatureCount = $responseBuffer->readInt8();
$result->add('signature_count', $signatureCount);
// Make signatures array
$signatures = [];
// Loop until we run out of signatures
for ($x = 0; $x < $signatureCount; $x++) {
$signatures[] = $responseBuffer->readPascalString(0, true);
}
// Add as a simple array
$result->add('signatures', $signatures);
unset($responseBuffer, $signatureCount, $signatures, $x);
return $result->fetch();
}
}