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<?php |
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namespace Spatie\UptimeMonitor\Services\PingMonitors; |
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use Spatie\UptimeMonitor\Models\PingMonitor; |
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use Cache; |
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use Generator; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Exception\RequestException; |
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use GuzzleHttp\Promise\EachPromise; |
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use GuzzleHttp\Promise\FulfilledPromise; |
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use GuzzleHttp\Promise\PromiseInterface; |
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use GuzzleHttp\Promise\RejectedPromise; |
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use GuzzleHttp\Psr7\Request; |
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use Illuminate\Support\Collection; |
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use Log; |
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use Psr\Http\Message\ResponseInterface; |
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use Spatie\UptimeMonitor\Models\UptimeMonitor; |
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class UptimeMonitorCollection extends Collection |
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{ |
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public function check() |
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{ |
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$this->resetItemKeys(); |
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Log::info("Start checking for {$this->count()} monitors..."); |
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(new EachPromise($this->getPromises(), [ |
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'concurrency' => 100, |
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'fulfilled' => function (ResponseInterface $response, $index) { |
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$pingMonitor = $this->items[$index]; |
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$this->log('fulfilled ping', $pingMonitor); |
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$pingMonitor->pingSucceeded($response->getBody()); |
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$this->cacheResponse($response, $pingMonitor); |
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}, |
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'rejected' => function (RequestException $exception, $index) { |
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$pingMonitor = $this->items[$index]; |
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$this->log("rejected ping because: {$exception->getMessage()}", $pingMonitor); |
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$pingMonitor->pingFailed($exception->getMessage()); |
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$this->cacheException($exception, $pingMonitor); |
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}, |
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]))->promise()->wait(); |
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Log::info('Checking done!'); |
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} |
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protected function getPromises() : Generator |
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{ |
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$client = new Client([ |
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'headers' => [ |
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'User-Agent' => 'spatie/laravel-uptime-monitor uptime checker', |
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], |
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]); |
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foreach ($this->items as $pingMonitor) { |
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$this->log('checking', $pingMonitor); |
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$promise = $this->getCachedResponse($pingMonitor); |
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if (!$promise instanceof PromiseInterface) { |
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$this->log('use cached response', $pingMonitor); |
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$promise = $client->requestAsync( |
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$pingMonitor->getPingRequestMethod(), |
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$pingMonitor->url, |
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['connect_timeout' => 10] |
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); |
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} |
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yield $promise; |
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} |
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} |
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/** |
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* @param \Spatie\UptimeMonitor\Models\UptimeMonitor $uptimeMonitor |
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* |
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* @return bool|PromiseInterface |
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*/ |
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protected function getCachedResponse(UptimeMonitor $uptimeMonitor) |
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{ |
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$cachedResult = Cache::get($uptimeMonitor->getCacheKey()); |
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if ($cachedResult instanceof ResponseInterface) { |
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return new FulfilledPromise($cachedResult); |
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} |
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if (is_string($cachedResult)) { |
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return new RejectedPromise( |
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new RequestException($cachedResult, new Request($uptimeMonitor->getPingRequestMethod(), $uptimeMonitor->url)) |
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); |
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} |
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return false; |
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} |
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protected function cacheResponse(ResponseInterface $response, PingMonitor $pingMonitor) |
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{ |
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Cache::put($pingMonitor->getCacheKey(), $response, 1); |
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} |
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protected function cacheException(RequestException $exception, PingMonitor $pingMonitor) |
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{ |
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Cache::put($pingMonitor->getCacheKey(), $exception->getMessage(), 1); |
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} |
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/** |
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* Make sure the keys are in consecutive order without gaps. |
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*/ |
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protected function resetItemKeys() |
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{ |
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$this->items = $this->values()->all(); |
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} |
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public function log($message, PingMonitor $pingMonitor) |
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{ |
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Log::info("$message (url: {$pingMonitor->url} id: {$pingMonitor->id})"); |
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} |
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} |
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spatie /
laravel-uptime-monitor
