Initial commit: Beszel fork with Domain Locker integration

internal/hub/notifications/providers/webhook.go

@@ -0,0 +1,83 @@
+package providers
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/henrygd/beszel/internal/entities/notification"
+)
+
+type WebhookProvider struct {
+	settings notification.WebhookSettings
+}
+
+func NewWebhookProvider(settings notification.WebhookSettings) *WebhookProvider {
+	return &WebhookProvider{settings: settings}
+}
+
+func (p *WebhookProvider) Validate() error {
+	if p.settings.URL == "" {
+		return fmt.Errorf("webhook URL is required")
+	}
+	return nil
+}
+
+func (p *WebhookProvider) Send(msg *notification.NotificationMessage) error {
+	if err := p.Validate(); err != nil {
+		return err
+	}
+
+	method := p.settings.Method
+	if method == "" {
+		method = "POST"
+	}
+
+	body := p.formatBody(msg)
+	req, err := http.NewRequest(method, p.settings.URL, bytes.NewBufferString(body))
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+
+	for k, v := range p.settings.Headers {
+		req.Header.Set(k, v)
+	}
+	if req.Header.Get("Content-Type") == "" {
+		req.Header.Set("Content-Type", "application/json")
+	}
+
+	client := &http.Client{Timeout: 30 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return fmt.Errorf("webhook request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 400 {
+		return fmt.Errorf("webhook returned status %d", resp.StatusCode)
+	}
+
+	return nil
+}
+
+func (p *WebhookProvider) formatBody(msg *notification.NotificationMessage) string {
+	if p.settings.BodyTemplate != "" {
+		return p.settings.BodyTemplate
+	}
+
+	data := map[string]interface{}{
+		"title":       msg.Title,
+		"body":        msg.Body,
+		"monitor":     msg.MonitorName,
+		"url":         msg.MonitorURL,
+		"status":      msg.Status,
+		"timestamp":   msg.Timestamp,
+		"ping":        msg.Ping,
+		"message":     msg.Message,
+	}
+
+	b, _ := json.Marshal(data)
+	return string(b)
+}