124 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			124 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Go
		
	
	
	
package mailgun
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import (
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	"context"
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	"fmt"
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	"strings"
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	"time"
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	"github.com/jenkinsci/kubernetes-operator/api/v1alpha2"
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	"github.com/jenkinsci/kubernetes-operator/pkg/notifications/event"
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	"github.com/jenkinsci/kubernetes-operator/pkg/notifications/provider"
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	"github.com/mailgun/mailgun-go/v3"
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	"github.com/pkg/errors"
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	corev1 "k8s.io/api/core/v1"
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	"k8s.io/apimachinery/pkg/types"
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	k8sclient "sigs.k8s.io/controller-runtime/pkg/client"
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)
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const (
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	infoColor    = "blue"
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	warningColor = "red"
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	defaultColor = "gray"
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	content = `
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html>
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<head></head>
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<body>
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		<h1 style="background-color: %s; color: white; padding: 3px 10px;">%s</h1>
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		<h3>%s</h3>
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		<table>
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			<tr>
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				<td><b>CR name:</b></td>
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				<td>%s</td>
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			</tr>
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			<tr>
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				<td><b>Phase:</b></td>
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				<td>%s</td>
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			</tr>
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		</table>
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		<h6 style="font-size: 11px; color: grey; margin-top: 15px;">Powered by Jenkins Operator <3</h6>
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</body>
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</html>`
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)
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// MailGun is a sending emails notification service
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type MailGun struct {
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	k8sClient k8sclient.Client
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	config    v1alpha2.Notification
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}
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// New returns instance of MailGun
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func New(k8sClient k8sclient.Client, config v1alpha2.Notification) *MailGun {
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	return &MailGun{k8sClient: k8sClient, config: config}
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}
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func (m MailGun) getStatusColor(logLevel v1alpha2.NotificationLevel) event.StatusColor {
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	switch logLevel {
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	case v1alpha2.NotificationLevelInfo:
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		return infoColor
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	case v1alpha2.NotificationLevelWarning:
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		return warningColor
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	default:
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		return defaultColor
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	}
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}
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func (m MailGun) generateMessage(event event.Event) string {
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	var statusMessage strings.Builder
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	var reasons string
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	if m.config.Verbose {
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		reasons = strings.TrimRight(strings.Join(event.Reason.Verbose(), "</li><li>"), "<li>")
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	} else {
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		reasons = strings.TrimRight(strings.Join(event.Reason.Short(), "</li><li>"), "<li>")
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	}
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	statusMessage.WriteString("<ul><li>")
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	statusMessage.WriteString(reasons)
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	statusMessage.WriteString("</ul>")
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	statusColor := m.getStatusColor(event.Level)
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	messageTitle := provider.NotificationTitle(event)
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	message := statusMessage.String()
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	crName := event.Jenkins.Name
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	phase := event.Phase
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	return fmt.Sprintf(content, statusColor, messageTitle, message, crName, phase)
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}
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// Send is function for sending directly to API
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func (m MailGun) Send(event event.Event) error {
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	secret := &corev1.Secret{}
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	selector := m.config.Mailgun.APIKeySecretKeySelector
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	err := m.k8sClient.Get(context.TODO(),
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		types.NamespacedName{Name: selector.Name, Namespace: event.Jenkins.Namespace}, secret)
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	if err != nil {
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		return errors.WithStack(err)
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	}
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	secretValue := string(secret.Data[selector.Key])
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	if secretValue == "" {
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		return errors.Errorf("Mailgun API secret is empty in secret '%s/%s[%s]",
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			event.Jenkins.Namespace, selector.Name, selector.Key)
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	}
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	mg := mailgun.NewMailgun(m.config.Mailgun.Domain, secretValue)
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	from := fmt.Sprintf("Jenkins Operator Notifier <%s>", m.config.Mailgun.From)
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	subject := provider.NotificationTitle(event)
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	recipient := m.config.Mailgun.Recipient
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	msg := mg.NewMessage(from, subject, "", recipient)
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	msg.SetHtml(m.generateMessage(event))
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	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
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	defer cancel()
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	_, _, err = mg.Send(ctx, msg)
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	return err
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}
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