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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 count; |
| 16 | use function is_array; |
| 17 | use function min; |
| 18 | use function ord; |
| 19 | use function pack; |
| 20 | use function strlen; |
| 21 | use function substr; |
| 22 | use function unpack; |
| 23 | use Clansuite\Capture\Protocol\ProtocolInterface; |
| 24 | use Clansuite\Capture\ServerAddress; |
| 25 | use Clansuite\Capture\ServerInfo; |
| 26 | use Clansuite\ServerQuery\CSQuery; |
| 27 | use Override; |
| 28 | |
| 29 | /** |
| 30 | * Torque Game Engine protocol implementation. |
| 31 | * |
| 32 | * Based on Torque Game Engine server query protocol from serverQuery.cc |
| 33 | * Used by Tribes 2, Blockland, Age of Time, and other Torque-based games. |
| 34 | */ |
| 35 | class Torque extends CSQuery implements ProtocolInterface |
| 36 | { |
| 37 | /** |
| 38 | * Protocol name. |
| 39 | */ |
| 40 | public string $name = 'Torque'; |
| 41 | |
| 42 | /** |
| 43 | * List of supported games. |
| 44 | * |
| 45 | * @var array<string> |
| 46 | */ |
| 47 | public array $supportedGames = ['Torque']; |
| 48 | |
| 49 | /** |
| 50 | * Protocol identifier. |
| 51 | */ |
| 52 | public string $protocol = 'Torque'; |
| 53 | |
| 54 | /** |
| 55 | * Game series. |
| 56 | * |
| 57 | * @var array<string> |
| 58 | */ |
| 59 | public array $game_series_list = ['Torque']; |
| 60 | |
| 61 | /** |
| 62 | * Constructor. |
| 63 | */ |
| 64 | public function __construct(?string $address = null, ?int $queryport = null) |
| 65 | { |
| 66 | parent::__construct(); |
| 67 | $this->address = $address; |
| 68 | $this->queryport = $queryport; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * query_server method. |
| 73 | */ |
| 74 | #[Override] |
| 75 | public function query_server(bool $getPlayers = true, bool $getRules = true): bool |
| 76 | { |
| 77 | if ($this->online) { |
| 78 | $this->reset(); |
| 79 | } |
| 80 | |
| 81 | $address = (string) $this->address; |
| 82 | $port = (int) $this->queryport; |
| 83 | |
| 84 | // Send ping request first |
| 85 | $pingPacket = $this->createPingPacket(); |
| 86 | |
| 87 | if (($pingResponse = $this->sendCommand($address, $port, $pingPacket)) === '' || ($pingResponse = $this->sendCommand($address, $port, $pingPacket)) === '0' || ($pingResponse = $this->sendCommand($address, $port, $pingPacket)) === false) { |
| 88 | return false; |
| 89 | } |
| 90 | |
| 91 | // Parse ping response to get server info |
| 92 | if (!$this->processPingResponse($pingResponse)) { |
| 93 | return false; |
| 94 | } |
| 95 | |
| 96 | // Send info request |
| 97 | $infoPacket = $this->createInfoPacket(); |
| 98 | |
| 99 | if (($infoResponse = $this->sendCommand($address, $port, $infoPacket)) === '' || ($infoResponse = $this->sendCommand($address, $port, $infoPacket)) === '0' || ($infoResponse = $this->sendCommand($address, $port, $infoPacket)) === false) { |
| 100 | return false; |
| 101 | } |
| 102 | |
| 103 | // Parse info response |
| 104 | if (!$this->processInfoResponse($infoResponse)) { |
| 105 | return false; |
| 106 | } |
| 107 | |
| 108 | $this->online = true; |
| 109 | |
| 110 | return true; |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * query method. |
| 115 | */ |
| 116 | #[Override] |
| 117 | public function query(ServerAddress $addr): ServerInfo |
| 118 | { |
| 119 | $this->address = $addr->ip; |
| 120 | $this->queryport = $addr->port; |
| 121 | $this->query_server(true, true); |
| 122 | |
| 123 | return new ServerInfo( |
| 124 | address: $this->address, |
| 125 | queryport: $this->queryport, |
| 126 | online: $this->online, |
| 127 | gamename: $this->gamename, |
| 128 | gameversion: $this->gameversion, |
| 129 | servertitle: $this->servertitle, |
| 130 | mapname: $this->mapname, |
| 131 | gametype: $this->gametype, |
| 132 | numplayers: $this->numplayers, |
| 133 | maxplayers: $this->maxplayers, |
| 134 | rules: $this->rules, |
| 135 | players: $this->players, |
| 136 | errstr: $this->errstr, |
| 137 | ); |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * getProtocolName method. |
| 142 | */ |
| 143 | #[Override] |
| 144 | public function getProtocolName(): string |
| 145 | { |
| 146 | return $this->protocol; |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * getVersion method. |
| 151 | */ |
| 152 | #[Override] |
| 153 | public function getVersion(ServerInfo $info): string |
| 154 | { |
| 155 | return $info->gameversion ?? 'unknown'; |
| 156 | } |
| 157 | |
| 158 | private function createPingPacket(): string |
| 159 | { |
| 160 | // Based on Torque protocol: GamePingRequest packet |
| 161 | // Format: packet_type(1) + flags(1) + key(4) |
| 162 | $packetType = "\x02"; // GamePingRequest |
| 163 | $flags = "\x00"; // No special flags |
| 164 | $key = pack('N', 0); // Key (will be set by session) |
| 165 | |
| 166 | return $packetType . $flags . $key; |
| 167 | } |
| 168 | |
| 169 | private function createInfoPacket(): string |
| 170 | { |
| 171 | // Based on Torque protocol: GameInfoRequest packet |
| 172 | // Format: packet_type(1) + flags(1) + key(4) |
| 173 | $packetType = "\x04"; // GameInfoRequest |
| 174 | $flags = "\x00"; // No special flags |
| 175 | $key = pack('N', 0); // Key (will be set by session) |
| 176 | |
| 177 | return $packetType . $flags . $key; |
| 178 | } |
| 179 | |
| 180 | private function processPingResponse(string $buffer): bool |
| 181 | { |
| 182 | if (strlen($buffer) < 14) { |
| 183 | return false; |
| 184 | } |
| 185 | |
| 186 | // Parse ping response based on Torque protocol |
| 187 | // Format: packet_type(1) + flags(1) + key(4) + version_string + protocol_version(4) + min_protocol(4) + build_version(4) + server_name(24) |
| 188 | |
| 189 | $offset = 6; // Skip packet_type, flags, key |
| 190 | |
| 191 | // Read version string (null terminated) |
| 192 | $versionString = ''; |
| 193 | |
| 194 | while ($offset < strlen($buffer) && ord($buffer[$offset]) !== 0) { |
| 195 | $versionString .= $buffer[$offset]; |
| 196 | $offset++; |
| 197 | } |
| 198 | $offset++; // Skip null |
| 199 | |
| 200 | $this->gameversion = $versionString; |
| 201 | |
| 202 | // Read protocol versions |
| 203 | if ($offset + 8 <= strlen($buffer)) { |
| 204 | $tmp = @unpack('N', substr($buffer, $offset, 4)); |
| 205 | $protocolVersion = is_array($tmp) && isset($tmp[1]) ? (int) $tmp[1] : 0; |
| 206 | $tmp = @unpack('N', substr($buffer, $offset + 4, 4)); |
| 207 | $minProtocolVersion = is_array($tmp) && isset($tmp[1]) ? (int) $tmp[1] : 0; |
| 208 | $offset += 8; |
| 209 | |
| 210 | // Read build version |
| 211 | if ($offset + 4 <= strlen($buffer)) { |
| 212 | $tmp = @unpack('N', substr($buffer, $offset, 4)); |
| 213 | $buildVersion = is_array($tmp) && isset($tmp[1]) ? (int) $tmp[1] : 0; |
| 214 | $offset += 4; |
| 215 | |
| 216 | // Read server name (up to 24 chars, null terminated) |
| 217 | $serverName = ''; |
| 218 | $maxLen = min(24, strlen($buffer) - $offset); |
| 219 | |
| 220 | for ($i = 0; $i < $maxLen && ord($buffer[$offset + $i]) !== 0; $i++) { |
| 221 | $serverName .= $buffer[$offset + $i]; |
| 222 | } |
| 223 | |
| 224 | $this->servertitle = $serverName; |
| 225 | |
| 226 | return true; |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | return false; |
| 231 | } |
| 232 | |
| 233 | private function processInfoResponse(string $buffer): bool |
| 234 | { |
| 235 | if (strlen($buffer) < 10) { |
| 236 | return false; |
| 237 | } |
| 238 | |
| 239 | // Parse info response based on Torque protocol |
| 240 | // Format: packet_type(1) + flags(1) + key(4) + game_type + mission_type + mission_name + status(1) + num_players(1) + max_players(1) + num_bots(1) + cpu_speed(2) + ... |
| 241 | |
| 242 | $offset = 6; // Skip packet_type, flags, key |
| 243 | |
| 244 | // Read strings (null terminated) |
| 245 | $strings = []; |
| 246 | |
| 247 | for ($i = 0; $i < 3; $i++) { // game_type, mission_type, mission_name |
| 248 | $str = ''; |
| 249 | |
| 250 | while ($offset < strlen($buffer) && ord($buffer[$offset]) !== 0) { |
| 251 | $str .= $buffer[$offset]; |
| 252 | $offset++; |
| 253 | } |
| 254 | $offset++; // Skip null |
| 255 | $strings[] = $str; |
| 256 | } |
| 257 | |
| 258 | if (count($strings) >= 3) { |
| 259 | $this->gametype = $strings[0]; |
| 260 | |
| 261 | /** @phpstan-ignore offsetAccess.notFound */ |
| 262 | $this->rules['mission_type'] = $strings[1]; |
| 263 | |
| 264 | /** @phpstan-ignore offsetAccess.notFound */ |
| 265 | $this->mapname = $strings[2]; |
| 266 | } |
| 267 | |
| 268 | // Read status byte |
| 269 | if ($offset < strlen($buffer)) { |
| 270 | $status = ord($buffer[$offset]); |
| 271 | $offset++; |
| 272 | $this->rules['status'] = $status; |
| 273 | } |
| 274 | |
| 275 | // Read player counts |
| 276 | if ($offset + 2 <= strlen($buffer)) { |
| 277 | $this->numplayers = ord($buffer[$offset]); |
| 278 | $this->maxplayers = ord($buffer[$offset + 1]); |
| 279 | $offset += 2; |
| 280 | } |
| 281 | |
| 282 | // Read bot count |
| 283 | if ($offset < strlen($buffer)) { |
| 284 | $this->rules['num_bots'] = ord($buffer[$offset]); |
| 285 | $offset++; |
| 286 | } |
| 287 | |
| 288 | // Read CPU speed |
| 289 | if ($offset + 2 <= strlen($buffer)) { |
| 290 | $tmp = @unpack('n', substr($buffer, $offset, 2)); |
| 291 | $cpuSpeed = is_array($tmp) && isset($tmp[1]) ? (int) $tmp[1] : 0; |
| 292 | $this->rules['cpu_speed'] = $cpuSpeed; |
| 293 | $offset += 2; |
| 294 | } |
| 295 | |
| 296 | return true; |
| 297 | } |
| 298 | } |