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<?php |
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namespace EricMakesStuff\ServerMonitor\Monitors; |
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use EricMakesStuff\ServerMonitor\Events\HttpPingDown; |
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use EricMakesStuff\ServerMonitor\Events\HttpPingUp; |
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use EricMakesStuff\ServerMonitor\Exceptions\InvalidConfiguration; |
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use GuzzleHttp\Client as Guzzle; |
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use GuzzleHttp\Exception\RequestException; |
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use Psr\Http\Message\ResponseInterface; |
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class HttpPingMonitor extends BaseMonitor |
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{ |
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/** @var int */ |
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protected $responseCode; |
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/** @var string */ |
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protected $responseContent; |
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/** @var bool */ |
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protected $responseContainsPhrase = false; |
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/** @var string */ |
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protected $url; |
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/** @var bool|string */ |
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protected $checkPhrase = false; |
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/** @var int */ |
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protected $timeout = 5; |
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/** @var bool */ |
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protected $allowRedirects = true; |
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/** |
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* @param array $config |
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*/ |
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public function __construct(array $config) |
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{ |
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if (!empty($config['url'])) { |
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$this->url = $config['url']; |
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} |
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if (!empty($config['checkPhrase'])) { |
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$this->checkPhrase = $config['checkPhrase']; |
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} |
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if (!empty($config['timeout'])) { |
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$this->timeout = $config['timeout']; |
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} |
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if (!empty($config['allowRedirects'])) { |
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$this->allowRedirects = $config['allowRedirects']; |
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} |
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} |
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/** |
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* @throws InvalidConfiguration |
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*/ |
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public function runMonitor() |
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{ |
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if (empty($this->url)) { |
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throw InvalidConfiguration::noUrlConfigured(); |
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} |
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try { |
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$guzzle = new Guzzle([ |
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'timeout' => $this->timeout, |
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'allow_redirects' => $this->allowRedirects, |
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]); |
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$response = $guzzle->get($this->url); |
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$this->responseCode = $response->getStatusCode(); |
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$this->responseContent = (string)$response->getBody(); |
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} catch (RequestException $e) { |
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$response = $e->getResponse(); |
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if ($response instanceof ResponseInterface) { |
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$this->responseCode = $response->getStatusCode(); |
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$this->responseContent = (string)$response->getBody(); |
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} else { |
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$this->setResponseCodeAndContentOnException($e); |
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} |
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} catch (\Exception $e) { |
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$this->setResponseCodeAndContentOnException($e); |
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} |
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if ($this->responseCode != '200' |
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|| ! $this->checkResponseContains($this->responseContent, $this->checkPhrase)) { |
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event(new HttpPingDown($this)); |
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} else { |
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event(new HttpPingUp($this)); |
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} |
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} |
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/** |
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* @param \Exception $e |
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*/ |
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protected function setResponseCodeAndContentOnException(\Exception $e) |
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{ |
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$this->responseCode = null; |
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$this->responseContent = $e->getMessage() . PHP_EOL . $e->getTraceAsString(); |
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} |
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protected function checkResponseContains($html, $phrase) |
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{ |
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if (!$phrase) { |
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return true; |
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} |
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$this->responseContainsPhrase = str_contains($html, $phrase); |
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return $this->responseContainsPhrase; |
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} |
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public function getResponseContainsPhrase() |
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{ |
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return $this->responseContainsPhrase; |
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} |
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public function getCheckPhrase() |
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{ |
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return $this->checkPhrase; |
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} |
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public function getResponseCode() |
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{ |
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return $this->responseCode; |
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} |
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public function getResponseContent() |
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{ |
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return $this->responseContent; |
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} |
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public function getUrl() |
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{ |
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return $this->url; |
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} |
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} |
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