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<?php |
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namespace BeyondCode\SelfDiagnosis\Checks; |
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use BeyondCode\SelfDiagnosis\Exceptions\InvalidConfigurationException; |
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use BeyondCode\SelfDiagnosis\Server; |
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use Illuminate\Support\Collection; |
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use JJG\Ping; |
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class ServersArePingable implements Check |
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{ |
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protected const DEFAULT_TIMEOUT = 5; |
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/** @var Collection */ |
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protected $notReachableServers; |
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public function __construct() |
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{ |
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$this->notReachableServers = new Collection(); |
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} |
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/** |
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* The name of the check. |
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* |
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* @param array $config |
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* @return string |
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*/ |
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public function name(array $config): string |
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{ |
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return trans('self-diagnosis::checks.servers_are_pingable.name'); |
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} |
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/** |
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* Perform the actual verification of this check. |
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* |
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* @param array $config |
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* @return bool |
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* @throws InvalidConfigurationException |
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*/ |
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public function check(array $config): bool |
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{ |
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$this->notReachableServers = $this->parseConfiguredServers(array_get($config, 'servers', [])); |
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if ($this->notReachableServers->isEmpty()) { |
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return true; |
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} |
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$this->notReachableServers = $this->notReachableServers->reject(function (Server $server) { |
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$ping = new Ping($server->getHost()); |
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$ping->setPort($server->getPort()); |
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$ping->setTimeout($server->getTimeout()); |
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if ($ping->getPort() === null) { |
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$latency = $ping->ping('exec'); |
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} else { |
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$latency = $ping->ping('fsockopen'); |
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} |
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return $latency !== false; |
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}); |
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return $this->notReachableServers->isEmpty(); |
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} |
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/** |
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* The error message to display in case the check does not pass. |
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* |
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* @param array $config |
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* @return string |
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*/ |
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public function message(array $config): string |
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{ |
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return $this->notReachableServers->map(function (Server $server) { |
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return trans('self-diagnosis::checks.servers_are_pingable.message', [ |
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'host' => $server->getHost(), |
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'port' => $server->getPort() ?? 'n/a', |
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'timeout' => $server->getTimeout(), |
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]); |
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})->implode(PHP_EOL); |
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} |
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/** |
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* Parses an array of servers which can be given in different formats. |
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* Unifies the format for the resulting collection. |
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* |
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* @param array $servers |
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* @return Collection |
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* @throws InvalidConfigurationException |
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*/ |
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private function parseConfiguredServers(array $servers): Collection |
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{ |
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$result = new Collection(); |
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foreach ($servers as $server) { |
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if (is_array($server)) { |
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if (!empty(array_except($server, ['host', 'port', 'timeout']))) { |
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throw new InvalidConfigurationException('Servers in array notation may only contain a host, port and timeout parameter.'); |
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} |
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if (!array_has($server, 'host')) { |
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throw new InvalidConfigurationException('For servers in array notation, the host parameter is required.'); |
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} |
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$host = array_get($server, 'host'); |
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$port = array_get($server, 'port'); |
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$timeout = array_get($server, 'timeout', self::DEFAULT_TIMEOUT); |
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$result->push(new Server($host, $port, $timeout)); |
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} else if (is_string($server)) { |
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$result->push(new Server($server, null, self::DEFAULT_TIMEOUT)); |
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} else { |
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throw new InvalidConfigurationException('The server configuration may only contain arrays or strings.'); |
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} |
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} |
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return $result; |
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} |
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} |
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beyondcode /
laravel-self-diagnosis
