configurationStructureService = $configurationStructureService; } /** * Return an Egg file to be used by the Daemon. */ public function handle(Server $server): array { $configs = $this->replacePlaceholders( $server, json_decode($server->egg->inherit_config_files) ); return [ 'startup' => $this->convertStartupToNewFormat(json_decode($server->egg->inherit_config_startup, true)), 'stop' => $this->convertStopToNewFormat($server->egg->inherit_config_stop), 'configs' => $configs, ]; } /** * Convert the "done" variable into an array if it is not currently one. * * @return array */ protected function convertStartupToNewFormat(array $startup) { $done = Arr::get($startup, 'done'); return [ 'done' => is_string($done) ? [$done] : $done, 'user_interaction' => [], 'strip_ansi' => Arr::get($startup, 'strip_ansi') ?? false, ]; } /** * Converts a legacy stop string into a new generation stop option for a server. * * For most eggs, this ends up just being a command sent to the server console, but * if the stop command is something starting with a caret (^), it will be converted * into the associated kill signal for the instance. */ protected function convertStopToNewFormat(string $stop): array { if (!Str::startsWith($stop, '^')) { return [ 'type' => 'command', 'value' => $stop, ]; } $signal = substr($stop, 1); if (strtoupper($signal) === 'C') { return [ 'type' => 'stop', 'value' => null, ]; } return [ 'type' => 'signal', 'value' => strtoupper($signal), ]; } /** * @return array */ protected function replacePlaceholders(Server $server, object $configs) { // Get the legacy configuration structure for the server so that we // can property map the egg placeholders to values. $structure = $this->configurationStructureService->handle($server, [], true); $response = []; // Normalize the output of the configuration for the new Wings Daemon to more // easily ingest, as well as make things more flexible down the road. foreach ($configs as $file => $data) { // Try to head off any errors relating to parsing a set of configuration files // or other JSON data for the egg. This should probably be blocked at the time // of egg creation/update, but it isn't so this check will at least prevent a // 500 error which would crash the entire Wings boot process. // // @see https://github.com/pterodactyl/panel/issues/3055 if (!is_object($data) || !isset($data->find)) { continue; } $append = array_merge((array) $data, ['file' => $file, 'replace' => []]); foreach ($this->iterate($data->find, $structure) as $find => $replace) { if (is_object($replace)) { foreach ($replace as $match => $replaceWith) { $append['replace'][] = [ 'match' => $find, 'if_value' => $match, 'replace_with' => $replaceWith, ]; } continue; } $append['replace'][] = [ 'match' => $find, 'replace_with' => $replace, ]; } unset($append['find']); $response[] = $append; } return $response; } /** * Replaces the legacy modifies from eggs with their new counterpart. The legacy Daemon would * set SERVER_MEMORY, SERVER_IP, and SERVER_PORT with their respective values on the Daemon * side. Ensure that anything referencing those properly replaces them with the matching config * value. */ protected function replaceLegacyModifiers(string $key, string $value): string { switch ($key) { case 'config.docker.interface': $replace = 'config.docker.network.interface'; break; case 'server.build.env.SERVER_MEMORY': case 'env.SERVER_MEMORY': $replace = 'server.build.memory'; break; case 'server.build.env.SERVER_IP': case 'env.SERVER_IP': $replace = 'server.build.default.ip'; break; case 'server.build.env.SERVER_PORT': case 'env.SERVER_PORT': $replace = 'server.build.default.port'; break; // By default we don't need to change anything, only if we ended up matching a specific legacy item. default: $replace = $key; } return str_replace("{{{$key}}}", "{{{$replace}}}", $value); } /** * @param mixed $value * * @return mixed|null */ protected function matchAndReplaceKeys($value, array $structure) { preg_match_all('/{{(?[\w.-]*)}}/', $value, $matches); foreach ($matches['key'] as $key) { // Matched something in {{server.X}} format, now replace that with the actual // value from the server properties. // // The Daemon supports server.X, env.X, and config.X placeholders. if (!Str::startsWith($key, ['server.', 'env.', 'config.'])) { continue; } // Don't do a replacement on anything that is not a string, we don't want to unintentionally // modify the resulting output. if (!is_string($value)) { continue; } $value = $this->replaceLegacyModifiers($key, $value); // We don't want to do anything with config keys since the Daemon will need to handle // that. For example, the Spigot egg uses "config.docker.interface" to identify the Docker // interface to proxy through, but the Panel would be unaware of that. if (Str::startsWith($key, 'config.')) { continue; } // Replace anything starting with "server." with the value out of the server configuration // array that used to be created for the old daemon. if (Str::startsWith($key, 'server.')) { $plucked = Arr::get($structure, preg_replace('/^server\./', '', $key), ''); $value = str_replace("{{{$key}}}", $plucked, $value); continue; } // Finally, replace anything starting with env. with the expected environment // variable from the server configuration. $plucked = Arr::get( $structure, preg_replace('/^env\./', 'build.env.', $key), '' ); $value = str_replace("{{{$key}}}", $plucked, $value); } return $value; } /** * Iterates over a set of "find" values for a given file in the parser configuration. If * the value of the line match is something iterable, continue iterating, otherwise perform * a match & replace. * * @param mixed $data * * @return mixed */ private function iterate($data, array $structure) { if (!is_iterable($data) && !is_object($data)) { return $data; } // Remember, in PHP objects are always passed by reference, so if we do not clone this object // instance we'll end up making modifications to the object outside the scope of this function // which leads to some fun behavior in the parser. $clone = clone $data; foreach ($clone as $key => &$value) { if (is_iterable($value) || is_object($value)) { $value = $this->iterate($value, $structure); continue; } $value = $this->matchAndReplaceKeys($value, $structure); } return $clone; } }