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<?php |
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/** |
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* This file is part of GameQ. |
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* |
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* GameQ is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation; either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* GameQ is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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namespace GameQ\Protocols; |
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use GameQ\Buffer; |
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use GameQ\Exception\Protocol as Exception; |
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use GameQ\Protocol; |
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use GameQ\Result; |
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use GameQ\Server; |
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use GameQ\Protocols\Http; |
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/** |
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* GTA Five M Protocol Class |
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* |
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* Server base can be found at https://fivem.net/ |
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* |
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* Based on code found at https://github.com/LiquidObsidian/fivereborn-query |
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* |
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* @author Austin Bischoff <[email protected]> |
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* |
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* Adding FiveM Player List by |
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* @author Jesse Lukas <[email protected]> |
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*/ |
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class Cfx extends Protocol |
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{ |
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/** |
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* Array of packets we want to look up. |
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* Each key should correspond to a defined method in this or a parent class |
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* |
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* @type array |
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*/ |
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protected $packets = [ |
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self::PACKET_STATUS => "\xFF\xFF\xFF\xFFgetinfo xxx", |
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]; |
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/** |
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* Use the response flag to figure out what method to run |
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* |
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* @type array |
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*/ |
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protected $responses = [ |
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"\xFF\xFF\xFF\xFFinfoResponse" => "processStatus", |
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]; |
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/** |
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* The query protocol used to make the call |
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* |
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* @type string |
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*/ |
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protected $protocol = 'cfx'; |
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/** |
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* String name of this protocol class |
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* |
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* @type string |
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*/ |
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protected $name = 'cfx'; |
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/** |
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* Longer string name of this protocol class |
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* |
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* @type string |
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*/ |
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protected $name_long = "CitizenFX"; |
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/** |
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* Holds the Player list so we can overwrite it back |
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* |
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* @var string |
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*/ |
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protected $PlayerList = []; |
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/** |
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* Normalize settings for this protocol |
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* |
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* @type array |
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*/ |
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protected $normalize = [ |
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// General |
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'general' => [ |
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// target => source |
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'gametype' => 'gametype', |
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'hostname' => 'hostname', |
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'mapname' => 'mapname', |
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'maxplayers' => 'sv_maxclients', |
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'mod' => 'gamename', |
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'numplayers' => 'clients', |
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'password' => 'privateClients', |
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], |
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]; |
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/** |
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* Get FiveM players list using a sub query |
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*/ |
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public function beforeSend(Server $server) |
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{ |
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$GameQ = new \GameQ\GameQ(); |
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$GameQ->addServer([ |
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'type' => 'cfxplayers', |
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'host' => "$server->ip:$server->port_query", |
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]); |
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$results = $GameQ->process(); |
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$this->PlayerList = isset($results[0]) && isset($results[0][0]) ? $results[0][0] : []; |
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} |
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/** |
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* Process the response |
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* |
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* @return array |
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* @throws \GameQ\Exception\Protocol |
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*/ |
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public function processResponse() |
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{ |
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// In case it comes back as multiple packets (it shouldn't) |
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$buffer = new Buffer(implode('', $this->packets_response)); |
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// Figure out what packet response this is for |
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$response_type = $buffer->readString(PHP_EOL); |
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// Figure out which packet response this is |
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if (empty($response_type) || !array_key_exists($response_type, $this->responses)) { |
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throw new Exception(__METHOD__ . " response type '{$response_type}' is not valid"); |
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} |
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// Offload the call |
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$results = call_user_func_array([$this, $this->responses[$response_type]], [$buffer]); |
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return $results; |
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} |
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/* |
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* Internal methods |
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*/ |
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/** |
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* Handle processing the status response |
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* |
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* @param Buffer $buffer |
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* |
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* @return array |
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*/ |
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protected function processStatus(Buffer $buffer) |
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{ |
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// Set the result to a new result instance |
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$result = new Result(); |
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// Lets peek and see if the data starts with a \ |
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if ($buffer->lookAhead(1) == '\\') { |
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// Burn the first one |
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$buffer->skip(1); |
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} |
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// Explode the data |
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$data = explode('\\', $buffer->getBuffer()); |
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// No longer needed |
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unset($buffer); |
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$itemCount = count($data); |
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// Now lets loop the array |
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for ($x = 0; $x < $itemCount; $x += 2) { |
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// Set some local vars |
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$key = $data[$x]; |
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$val = $data[$x + 1]; |
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if (in_array($key, ['challenge'])) { |
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continue; // skip |
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} |
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// Regular variable so just add the value. |
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$result->add($key, $val); |
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} |
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// Add result of sub http-protocol if available |
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if ($this->PlayerList) { |
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$result->add('players', $this->PlayerList); |
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} |
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return $result->fetch(); |
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} |
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} |
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Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.
For example, imagine you have a variable
$accountId
that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to theid
property of an instance of theAccount
class. This class holds a proper account, so the id value must no longer be false.Either this assignment is in error or a type check should be added for that assignment.