79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
package prometheus
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import (
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"fmt"
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"strings"
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"net/http"
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libHTTP "dev.sum7.eu/genofire/golang-lib/http"
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"github.com/bdlm/log"
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"github.com/prometheus/alertmanager/notify/webhook"
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"gosrc.io/xmpp"
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"dev.sum7.eu/sum7/hook2xmpp/runtime"
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)
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const hookType = "prometheus"
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func init() {
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runtime.HookRegister[hookType] = func(client xmpp.Sender, hooks []runtime.Hook) func(w http.ResponseWriter, r *http.Request) {
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log.WithField("type", hookType).Info("loaded")
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return func(w http.ResponseWriter, r *http.Request) {
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logger := log.WithField("type", hookType)
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var request webhook.Message
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if err := libHTTP.Read(r, &request); err != nil {
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logger.Errorf("no readable payload: %s", err)
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http.Error(w, fmt.Sprintf("no readable payload"), http.StatusInternalServerError)
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return
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}
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// title
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content := strings.Join(request.GroupLabels.Values(), " ")
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html := fmt.Sprintf(`<span style="font-weight: bold;">%s</span>`, content)
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statusColor := "#ffff00"
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switch request.Status {
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case "resolved":
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statusColor = "#00ff00"
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case "firing":
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statusColor = "#ff0000"
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}
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firingAlerts := request.Alerts.Firing()
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if len(firingAlerts) > 0 {
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for _, a := range firingAlerts {
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if description, ok := a.Annotations["message"]; ok {
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content = fmt.Sprintf("%s\n%s", content, description)
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html = fmt.Sprintf("%s<br/>%s", html, description)
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}
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}
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content = fmt.Sprintf("[%s:%d] %s", request.Status, len(firingAlerts), content)
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html = fmt.Sprintf(`<span style="color:%s">%s:%d</span> %s`, statusColor, request.Status, len(firingAlerts), html)
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} else {
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html = fmt.Sprintf(`<span style="color:%s">%s</span> %s`, statusColor, request.Status, content)
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content = fmt.Sprintf("[%s] %s", request.Status, content)
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}
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logger = logger.WithField("body", content)
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ok := false
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token := strings.TrimSpace(strings.TrimPrefix(r.Header.Get("Authorization"), "Bearer "))
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for _, hook := range hooks {
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if token != hook.Secret {
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continue
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}
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logger.Infof("run hook")
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runtime.Notify(client, hook, content, html)
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ok = true
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}
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if !ok {
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logger.Warnf("no hook found")
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http.Error(w, fmt.Sprintf("no configuration for %s for url: %s", hookType, request.ExternalURL), http.StatusNotFound)
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}
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}
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}
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}
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