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| 1 | <?php declare(strict_types=1); |
| 2 | |
| 3 | /** |
| 4 | * Clansuite Server Query |
| 5 | * |
| 6 | * SPDX-FileCopyrightText: 2003-2025 Jens A. Koch |
| 7 | * SPDX-License-Identifier: MIT |
| 8 | * |
| 9 | * For the full copyright and license information, please view |
| 10 | * the LICENSE file that was distributed with this source code. |
| 11 | */ |
| 12 | |
| 13 | namespace Clansuite\ServerQuery\ServerProtocols; |
| 14 | |
| 15 | use function is_array; |
| 16 | use function ord; |
| 17 | use function substr; |
| 18 | use function unpack; |
| 19 | use Clansuite\Capture\Protocol\ProtocolInterface; |
| 20 | use Clansuite\Capture\ServerAddress; |
| 21 | use Clansuite\Capture\ServerInfo; |
| 22 | use Clansuite\ServerQuery\CSQuery; |
| 23 | use Override; |
| 24 | |
| 25 | /** |
| 26 | * Unreal 2 Protocol implementation. |
| 27 | * |
| 28 | * Base protocol for Unreal Engine 2 games like Killing Floor. |
| 29 | */ |
| 30 | class Unreal2 extends CSQuery implements ProtocolInterface |
| 31 | { |
| 32 | /** |
| 33 | * Protocol name. |
| 34 | */ |
| 35 | public string $name = 'Unreal2'; |
| 36 | |
| 37 | /** |
| 38 | * List of supported games. |
| 39 | * |
| 40 | * @var array<string> |
| 41 | */ |
| 42 | public array $supportedGames = ['Unreal2', 'KillingFloor']; |
| 43 | |
| 44 | /** |
| 45 | * Protocol identifier. |
| 46 | */ |
| 47 | public string $protocol = 'Unreal2'; |
| 48 | |
| 49 | /** |
| 50 | * Game series. |
| 51 | * |
| 52 | * @var array<string> |
| 53 | */ |
| 54 | public array $game_series_list = ['Unreal Tournament']; |
| 55 | public ?int $serverID = null; |
| 56 | |
| 57 | /** |
| 58 | * Constructor. |
| 59 | */ |
| 60 | public function __construct(?string $address = null, ?int $queryport = null) |
| 61 | { |
| 62 | parent::__construct(); |
| 63 | $this->address = $address; |
| 64 | $this->queryport = $queryport; |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * query_server method. |
| 69 | */ |
| 70 | #[Override] |
| 71 | public function query_server(bool $getPlayers = true, bool $getRules = true): bool |
| 72 | { |
| 73 | if ($this->online) { |
| 74 | $this->reset(); |
| 75 | } |
| 76 | |
| 77 | $address = (string) $this->address; |
| 78 | $port = (int) $this->queryport; |
| 79 | |
| 80 | // Send details query |
| 81 | $command = "\x79\x00\x00\x00\x00"; // Details packet |
| 82 | |
| 83 | if (($result = $this->sendCommand($address, $port, $command)) === '' || ($result = $this->sendCommand($address, $port, $command)) === '0' || ($result = $this->sendCommand($address, $port, $command)) === false) { |
| 84 | return false; |
| 85 | } |
| 86 | |
| 87 | $this->processDetails($result); |
| 88 | // Send rules query if requested |
| 89 | $command = "\x79\x00\x00\x00\x01"; |
| 90 | |
| 91 | // Rules packet |
| 92 | if (($result = $this->sendCommand($address, $port, $command)) !== false) { |
| 93 | $this->processRules($result); |
| 94 | } |
| 95 | // Send players query if requested |
| 96 | $command = "\x79\x00\x00\x00\x02"; |
| 97 | |
| 98 | // Players packet |
| 99 | if (($result = $this->sendCommand($address, $port, $command)) !== false) { |
| 100 | $this->processPlayers($result); |
| 101 | } |
| 102 | |
| 103 | $this->online = true; |
| 104 | |
| 105 | return true; |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * query method. |
| 110 | */ |
| 111 | #[Override] |
| 112 | public function query(ServerAddress $addr): ServerInfo |
| 113 | { |
| 114 | $this->address = $addr->ip; |
| 115 | $this->queryport = $addr->port; |
| 116 | $this->query_server(true, true); |
| 117 | |
| 118 | return new ServerInfo( |
| 119 | address: $this->address, |
| 120 | queryport: $this->queryport, |
| 121 | online: $this->online, |
| 122 | gamename: $this->gamename, |
| 123 | gameversion: $this->gameversion, |
| 124 | servertitle: $this->servertitle, |
| 125 | mapname: $this->mapname, |
| 126 | gametype: $this->gametype, |
| 127 | numplayers: $this->numplayers, |
| 128 | maxplayers: $this->maxplayers, |
| 129 | rules: $this->rules, |
| 130 | players: $this->players, |
| 131 | errstr: $this->errstr, |
| 132 | ); |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * getProtocolName method. |
| 137 | */ |
| 138 | #[Override] |
| 139 | public function getProtocolName(): string |
| 140 | { |
| 141 | return $this->protocol; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * getVersion method. |
| 146 | */ |
| 147 | #[Override] |
| 148 | public function getVersion(ServerInfo $info): string |
| 149 | { |
| 150 | return $info->gameversion ?? 'unknown'; |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * _processDetails method. |
| 155 | */ |
| 156 | protected function processDetails(string $data): void |
| 157 | { |
| 158 | // Skip header (5 bytes) |
| 159 | $data = substr($data, 5); |
| 160 | |
| 161 | // Server ID (4 bytes) |
| 162 | $tmp = @unpack('V', substr($data, 0, 4)); |
| 163 | |
| 164 | if (!is_array($tmp) || !isset($tmp[1])) { |
| 165 | // leave serverID null on malformed response |
| 166 | $this->serverID = null; |
| 167 | } else { |
| 168 | $this->serverID = $tmp[1]; |
| 169 | } |
| 170 | $data = substr($data, 4); |
| 171 | |
| 172 | // Server IP (pascal string, skip) |
| 173 | $len = ord($data[0] ?? "\0"); |
| 174 | $data = substr($data, 1 + $len); |
| 175 | |
| 176 | // Game port (4 bytes) |
| 177 | $tmp = @unpack('V', substr($data, 0, 4)); |
| 178 | |
| 179 | if (!is_array($tmp) || !isset($tmp[1])) { |
| 180 | // malformed, default to 0 |
| 181 | $this->hostport = 0; |
| 182 | } else { |
| 183 | $this->hostport = (int) $tmp[1]; |
| 184 | } |
| 185 | $data = substr($data, 4); |
| 186 | |
| 187 | // Query port (4 bytes, skip) |
| 188 | $data = substr($data, 4); |
| 189 | |
| 190 | // Server name (pascal string) |
| 191 | $len = ord($data[0] ?? "\0"); |
| 192 | $this->servertitle = substr($data, 1, $len); |
| 193 | $data = substr($data, 1 + $len); |
| 194 | |
| 195 | // Map name (pascal string) |
| 196 | $len = ord($data[0] ?? "\0"); |
| 197 | $this->mapname = substr($data, 1, $len); |
| 198 | $data = substr($data, 1 + $len); |
| 199 | |
| 200 | // Game type (pascal string) |
| 201 | $len = ord($data[0] ?? "\0"); |
| 202 | $this->gametype = substr($data, 1, $len); |
| 203 | $data = substr($data, 1 + $len); |
| 204 | |
| 205 | // Num players (4 bytes) |
| 206 | $tmp = @unpack('V', substr($data, 0, 4)); |
| 207 | |
| 208 | if (!is_array($tmp) || !isset($tmp[1])) { |
| 209 | $this->numplayers = 0; |
| 210 | } else { |
| 211 | $this->numplayers = (int) $tmp[1]; |
| 212 | } |
| 213 | $data = substr($data, 4); |
| 214 | |
| 215 | // Max players (4 bytes) |
| 216 | $tmp = @unpack('V', substr($data, 0, 4)); |
| 217 | |
| 218 | if (!is_array($tmp) || !isset($tmp[1])) { |
| 219 | $this->maxplayers = 0; |
| 220 | } else { |
| 221 | $this->maxplayers = (int) $tmp[1]; |
| 222 | } |
| 223 | |
| 224 | // Ping (4 bytes, skip) |
| 225 | // $data = substr($data, 4); |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * _processRules method. |
| 230 | */ |
| 231 | protected function processRules(string $data): void |
| 232 | { |
| 233 | // Skip header (5 bytes) |
| 234 | $data = substr($data, 5); |
| 235 | |
| 236 | while ($data !== '') { |
| 237 | // Key (pascal string) |
| 238 | $len = ord($data[0] ?? "\0"); |
| 239 | $key = substr($data, 1, $len); |
| 240 | $data = substr($data, 1 + $len); |
| 241 | |
| 242 | // Value (pascal string) |
| 243 | $len = ord($data[0] ?? "\0"); |
| 244 | $value = substr($data, 1, $len); |
| 245 | $data = substr($data, 1 + $len); |
| 246 | |
| 247 | $this->rules[$key] = $value; |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | /** |
| 252 | * _processPlayers method. |
| 253 | */ |
| 254 | protected function processPlayers(string $data): void |
| 255 | { |
| 256 | // Skip header (5 bytes) |
| 257 | $data = substr($data, 5); |
| 258 | |
| 259 | $this->players = []; |
| 260 | |
| 261 | while ($data !== '') { |
| 262 | // Player ID (4 bytes) |
| 263 | $tmp = @unpack('V', substr($data, 0, 4)); |
| 264 | |
| 265 | if (!is_array($tmp) || !isset($tmp[1])) { |
| 266 | // malformed, stop parsing players |
| 267 | break; |
| 268 | } |
| 269 | $id = (int) $tmp[1]; |
| 270 | $data = substr($data, 4); |
| 271 | |
| 272 | if ($id === 0) { |
| 273 | break; // End of players |
| 274 | } |
| 275 | |
| 276 | // Player name (pascal string) |
| 277 | $len = ord($data[0] ?? "\0"); |
| 278 | $name = substr($data, 1, $len); |
| 279 | $data = substr($data, 1 + $len); |
| 280 | |
| 281 | // Ping (4 bytes) |
| 282 | $tmp = @unpack('V', substr($data, 0, 4)); |
| 283 | $ping = (is_array($tmp) && isset($tmp[1])) ? (int) $tmp[1] : 0; |
| 284 | $data = substr($data, 4); |
| 285 | |
| 286 | // Score (4 bytes) |
| 287 | $tmp = @unpack('V', substr($data, 0, 4)); |
| 288 | $score = (is_array($tmp) && isset($tmp[1])) ? (int) $tmp[1] : 0; |
| 289 | $data = substr($data, 4); |
| 290 | |
| 291 | // Skip 4 unknown bytes |
| 292 | $data = substr($data, 4); |
| 293 | |
| 294 | $this->players[] = [ |
| 295 | 'name' => $name, |
| 296 | 'ping' => $ping, |
| 297 | 'score' => $score, |
| 298 | ]; |
| 299 | } |
| 300 | } |
| 301 | } |