package mailgun
import (
"context"
"fmt"
"strings"
"time"
"github.com/jenkinsci/kubernetes-operator/pkg/apis/jenkins/v1alpha2"
"github.com/jenkinsci/kubernetes-operator/pkg/controller/jenkins/notifications/event"
"github.com/jenkinsci/kubernetes-operator/pkg/controller/jenkins/notifications/provider"
"github.com/mailgun/mailgun-go/v3"
"github.com/pkg/errors"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
k8sclient "sigs.k8s.io/controller-runtime/pkg/client"
)
const (
infoColor = "blue"
warningColor = "red"
defaultColor = "gray"
content = `
%s
%s
Powered by Jenkins Operator <3
`
)
// MailGun is a sending emails notification service
type MailGun struct {
k8sClient k8sclient.Client
config v1alpha2.Notification
}
// New returns instance of MailGun
func New(k8sClient k8sclient.Client, config v1alpha2.Notification) *MailGun {
return &MailGun{k8sClient: k8sClient, config: config}
}
func (m MailGun) getStatusColor(logLevel v1alpha2.NotificationLevel) event.StatusColor {
switch logLevel {
case v1alpha2.NotificationLevelInfo:
return infoColor
case v1alpha2.NotificationLevelWarning:
return warningColor
default:
return defaultColor
}
}
func (m MailGun) generateMessage(event event.Event) string {
var statusMessage strings.Builder
var reasons string
if m.config.Verbose {
reasons = strings.TrimRight(strings.Join(event.Reason.Verbose(), ""), "")
} else {
reasons = strings.TrimRight(strings.Join(event.Reason.Short(), ""), "")
}
statusMessage.WriteString("- ")
statusMessage.WriteString(reasons)
statusMessage.WriteString("
")
statusColor := m.getStatusColor(event.Level)
messageTitle := provider.NotificationTitle(event)
message := statusMessage.String()
crName := event.Jenkins.Name
phase := event.Phase
return fmt.Sprintf(content, statusColor, messageTitle, message, crName, phase)
}
// Send is function for sending directly to API
func (m MailGun) Send(event event.Event) error {
secret := &corev1.Secret{}
selector := m.config.Mailgun.APIKeySecretKeySelector
err := m.k8sClient.Get(context.TODO(),
types.NamespacedName{Name: selector.Name, Namespace: event.Jenkins.Namespace}, secret)
if err != nil {
return errors.WithStack(err)
}
secretValue := string(secret.Data[selector.Key])
if secretValue == "" {
return errors.Errorf("Mailgun API secret is empty in secret '%s/%s[%s]",
event.Jenkins.Namespace, selector.Name, selector.Key)
}
mg := mailgun.NewMailgun(m.config.Mailgun.Domain, secretValue)
from := fmt.Sprintf("Jenkins Operator Notifier <%s>", m.config.Mailgun.From)
subject := provider.NotificationTitle(event)
recipient := m.config.Mailgun.Recipient
msg := mg.NewMessage(from, subject, "", recipient)
msg.SetHtml(m.generateMessage(event))
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
_, _, err = mg.Send(ctx, msg)
return err
}