owncast/core/webhooks/workerpool.go
Matthew Donoughe 10055664bb
add tests for webhook events (#2180)
* add tests for webhook events

* atomic.Uint32 is not in Go 1.18
2022-10-09 22:55:54 -07:00

87 lines
1.9 KiB
Go

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