mirror of
https://github.com/owncast/owncast.git
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96 lines
2.1 KiB
Go
96 lines
2.1 KiB
Go
package webhooks
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import (
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"bytes"
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"encoding/json"
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"net/http"
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"sync"
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log "github.com/sirupsen/logrus"
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"github.com/owncast/owncast/core/data"
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"github.com/owncast/owncast/models"
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)
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const (
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// webhookWorkerPoolSize defines the number of concurrent HTTP webhook requests.
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webhookWorkerPoolSize = 10
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)
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// Job struct bundling the webhook and the payload in one struct.
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type Job struct {
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webhook models.Webhook
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payload WebhookEvent
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wg *sync.WaitGroup
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}
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var (
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queue chan Job
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getStatus func() models.Status
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)
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// SetupWebhooks initializes the webhook worker pool and sets the function to get the current status.
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func SetupWebhooks(getStatusFunc func() models.Status) {
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getStatus = getStatusFunc
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initWorkerPool()
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}
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// initWorkerPool starts n go routines that await webhook jobs.
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func initWorkerPool() {
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queue = make(chan Job)
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// start workers
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for i := 1; i <= webhookWorkerPoolSize; i++ {
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go worker(i, queue)
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}
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}
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func addToQueue(webhook models.Webhook, payload WebhookEvent, wg *sync.WaitGroup) {
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log.Tracef("Queued Event %s for Webhook %s", payload.Type, webhook.URL)
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queue <- Job{webhook, payload, wg}
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}
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func worker(workerID int, queue <-chan Job) {
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log.Debugf("Started Webhook worker %d", workerID)
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for job := range queue {
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log.Debugf("Event %s sent to Webhook %s using worker %d", job.payload.Type, job.webhook.URL, workerID)
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if err := sendWebhook(job); err != nil {
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log.Errorf("Event: %s failed to send to webhook: %s Error: %s", job.payload.Type, job.webhook.URL, err)
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}
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log.Tracef("Done with Event %s to Webhook %s using worker %d", job.payload.Type, job.webhook.URL, workerID)
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if job.wg != nil {
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job.wg.Done()
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}
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}
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}
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func sendWebhook(job Job) error {
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jsonText, err := json.Marshal(job.payload)
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if err != nil {
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return err
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}
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req, err := http.NewRequest("POST", job.webhook.URL, bytes.NewReader(jsonText))
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if err != nil {
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return err
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}
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req.Header.Set("Content-Type", "application/json")
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client := &http.Client{}
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resp, err := client.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if err := data.SetWebhookAsUsed(job.webhook); err != nil {
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log.Warnln(err)
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}
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return nil
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}
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