feat: Implement NTFY notification functionality

- Implement NTFY push notification functionality to send messages to ntfy toptics.
2025-08-15 17:17:29 +07:00
parent 3bc1fd7c02
commit 35fe0b9071
3 changed files with 393 additions and 1 deletions
@@ -29,6 +29,7 @@ func NewNotificationManager(pbClient *pocketbase.PocketBaseClient) *Notification
 	services["google_chat"] = NewGoogleChatService()
 	services["email"] = NewEmailService()
 	services["webhook"] = NewWebhookService()
+	services["ntfy"] = NewNtfyService()

 	// log.Printf("✅ Notification services initialized: %v", getKeys(services))

@@ -0,0 +1,390 @@
+
+package notification
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+)
+
+// NtfyService handles NTFY push notifications
+type NtfyService struct{}
+
+// NewNtfyService creates a new NTFY notification service
+func NewNtfyService() *NtfyService {
+	return &NtfyService{}
+}
+
+// SendNotification sends a notification via NTFY
+func (ns *NtfyService) SendNotification(config *AlertConfiguration, message string) error {
+	if config.NtfyEndpoint == "" {
+		return fmt.Errorf("ntfy endpoint is required")
+	}
+
+	// Create HTTP request with plain text message
+	req, err := http.NewRequest("POST", config.NtfyEndpoint, strings.NewReader(message))
+	if err != nil {
+		return fmt.Errorf("failed to create NTFY request: %v", err)
+	}
+
+	// Set headers for NTFY
+	req.Header.Set("Content-Type", "text/plain; charset=utf-8")
+	req.Header.Set("Title", "🔔 CheckCle Service Alert")
+	req.Header.Set("Tags", "monitoring")
+	req.Header.Set("Priority", "default")
+
+	// Send the request
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to send NTFY notification: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		return fmt.Errorf("ntfy API error, status: %d", resp.StatusCode)
+	}
+
+	return nil
+}
+
+// SendServerNotification sends a server-specific notification via NTFY
+func (ns *NtfyService) SendServerNotification(config *AlertConfiguration, payload *NotificationPayload, template *ServerNotificationTemplate, resourceType string) error {
+	message := ns.generateServerMessage(payload, template, resourceType)
+	return ns.SendNotificationWithDetails(config, message, "🔔 Server Alert", resourceType)
+}
+
+// SendServiceNotification sends a service-specific notification via NTFY
+func (ns *NtfyService) SendServiceNotification(config *AlertConfiguration, payload *NotificationPayload, template *ServiceNotificationTemplate) error {
+	message := ns.generateServiceMessage(payload, template)
+	return ns.SendNotificationWithDetails(config, message, "🔔 Service Alert", "service")
+}
+
+// SendNotificationWithDetails sends a notification with custom title and tags
+func (ns *NtfyService) SendNotificationWithDetails(config *AlertConfiguration, message, title, alertType string) error {
+	if config.NtfyEndpoint == "" {
+		return fmt.Errorf("ntfy endpoint is required")
+	}
+
+	// Create HTTP request with plain text message
+	req, err := http.NewRequest("POST", config.NtfyEndpoint, strings.NewReader(message))
+	if err != nil {
+		return fmt.Errorf("failed to create NTFY request: %v", err)
+	}
+
+	// Set headers for NTFY with dynamic values
+	req.Header.Set("Content-Type", "text/plain; charset=utf-8")
+	req.Header.Set("Title", title)
+	
+	// Set appropriate tags and priority based on alert type and message content
+	tags := "monitoring"
+	priority := "default"
+	
+	// Determine priority and tags based on message content
+	messageLower := strings.ToLower(message)
+	if strings.Contains(messageLower, "down") || strings.Contains(messageLower, "critical") || strings.Contains(messageLower, "expired") {
+		priority = "high"
+		tags = "rotating_light,warning"
+	} else if strings.Contains(messageLower, "warning") || strings.Contains(messageLower, "expiring") {
+		priority = "default"
+		tags = "warning"
+	} else if strings.Contains(messageLower, "up") || strings.Contains(messageLower, "restored") || strings.Contains(messageLower, "resolved") {
+		priority = "default"
+		tags = "white_check_mark"
+	}
+	
+	// Add resource type specific tags
+	switch alertType {
+	case "cpu":
+		tags += ",cpu"
+	case "ram", "memory":
+		tags += ",memory"
+	case "disk":
+		tags += ",floppy_disk"
+	case "network":
+		tags += ",globe_with_meridians"
+	case "service":
+		tags += ",gear"
+	case "ssl":
+		tags += ",lock"
+	}
+	
+	req.Header.Set("Tags", tags)
+	req.Header.Set("Priority", priority)
+
+	// Send the request
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to send NTFY notification: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		return fmt.Errorf("ntfy API error, status: %d", resp.StatusCode)
+	}
+
+	return nil
+}
+
+// generateServerMessage creates a message for server notifications using server template
+func (ns *NtfyService) generateServerMessage(payload *NotificationPayload, template *ServerNotificationTemplate, resourceType string) string {
+	var templateMessage string
+	
+	// Select appropriate template message based on status and resource type
+	switch strings.ToLower(payload.Status) {
+	case "down":
+		templateMessage = template.DownMessage
+	case "up":
+		templateMessage = template.UpMessage
+	case "warning":
+		templateMessage = template.WarningMessage
+	case "paused":
+		templateMessage = template.PausedMessage
+	default:
+		// Handle resource-specific messages
+		switch resourceType {
+		case "cpu":
+			if strings.Contains(strings.ToLower(payload.Status), "restore") {
+				templateMessage = template.RestoreCPUMessage
+			} else {
+				templateMessage = template.CPUMessage
+			}
+		case "ram", "memory":
+			if strings.Contains(strings.ToLower(payload.Status), "restore") {
+				templateMessage = template.RestoreRAMMessage
+			} else {
+				templateMessage = template.RAMMessage
+			}
+		case "disk":
+			if strings.Contains(strings.ToLower(payload.Status), "restore") {
+				templateMessage = template.RestoreDiskMessage
+			} else {
+				templateMessage = template.DiskMessage
+			}
+		case "network":
+			if strings.Contains(strings.ToLower(payload.Status), "restore") {
+				templateMessage = template.RestoreNetworkMessage
+			} else {
+				templateMessage = template.NetworkMessage
+			}
+		case "cpu_temp", "cpu_temperature":
+			if strings.Contains(strings.ToLower(payload.Status), "restore") {
+				templateMessage = template.RestoreCPUTempMessage
+			} else {
+				templateMessage = template.CPUTempMessage
+			}
+		case "disk_io":
+			if strings.Contains(strings.ToLower(payload.Status), "restore") {
+				templateMessage = template.RestoreDiskIOMessage
+			} else {
+				templateMessage = template.DiskIOMessage
+			}
+		default:
+			templateMessage = template.WarningMessage
+		}
+	}
+	
+	// If no template message found, use a default
+	if templateMessage == "" {
+		templateMessage = ns.generateDefaultServerMessage(payload, resourceType)
+	}
+	
+	return ns.replacePlaceholders(templateMessage, payload)
+}
+
+// generateServiceMessage creates a message for service notifications using service template
+func (ns *NtfyService) generateServiceMessage(payload *NotificationPayload, template *ServiceNotificationTemplate) string {
+	var templateMessage string
+	
+	// Select appropriate template message based on status
+	switch strings.ToLower(payload.Status) {
+	case "up":
+		templateMessage = template.UpMessage
+	case "down":
+		templateMessage = template.DownMessage
+	case "maintenance":
+		templateMessage = template.MaintenanceMessage
+	case "incident":
+		templateMessage = template.IncidentMessage
+	case "resolved":
+		templateMessage = template.ResolvedMessage
+	case "warning":
+		templateMessage = template.WarningMessage
+	default:
+		templateMessage = template.WarningMessage
+	}
+	
+	// If no template message found, use a default
+	if templateMessage == "" {
+		templateMessage = ns.generateDefaultUptimeMessage(payload)
+	}
+	
+	return ns.replacePlaceholders(templateMessage, payload)
+}
+
+// replacePlaceholders replaces all placeholders in the message with actual values
+func (ns *NtfyService) replacePlaceholders(message string, payload *NotificationPayload) string {
+	// Replace basic placeholders
+	message = strings.ReplaceAll(message, "${service_name}", payload.ServiceName)
+	message = strings.ReplaceAll(message, "${status}", strings.ToUpper(payload.Status))
+	message = strings.ReplaceAll(message, "${host}", ns.safeString(payload.Host))
+	message = strings.ReplaceAll(message, "${hostname}", ns.safeString(payload.Hostname))
+	
+	// Replace URL with fallback to host
+	url := ns.safeString(payload.URL)
+	if url == "N/A" && payload.Host != "" {
+		url = payload.Host
+	}
+	message = strings.ReplaceAll(message, "${url}", url)
+	
+	// Replace domain
+	message = strings.ReplaceAll(message, "${domain}", ns.safeString(payload.Domain))
+	
+	// Replace service type
+	if payload.ServiceType != "" {
+		message = strings.ReplaceAll(message, "${service_type}", strings.ToUpper(payload.ServiceType))
+	} else {
+		message = strings.ReplaceAll(message, "${service_type}", "N/A")
+	}
+	
+	// Replace region and agent info
+	message = strings.ReplaceAll(message, "${region_name}", ns.safeString(payload.RegionName))
+	message = strings.ReplaceAll(message, "${agent_id}", ns.safeString(payload.AgentID))
+	
+	// Handle numeric fields safely
+	if payload.Port > 0 {
+		message = strings.ReplaceAll(message, "${port}", fmt.Sprintf("%d", payload.Port))
+	} else {
+		message = strings.ReplaceAll(message, "${port}", "N/A")
+	}
+	
+	if payload.ResponseTime > 0 {
+		message = strings.ReplaceAll(message, "${response_time}", fmt.Sprintf("%dms", payload.ResponseTime))
+	} else {
+		message = strings.ReplaceAll(message, "${response_time}", "N/A")
+	}
+	
+	if payload.Uptime > 0 {
+		message = strings.ReplaceAll(message, "${uptime}", fmt.Sprintf("%d%%", payload.Uptime))
+	} else {
+		message = strings.ReplaceAll(message, "${uptime}", "N/A")
+	}
+	
+	// Replace server monitoring fields
+	message = strings.ReplaceAll(message, "${cpu_usage}", ns.safeString(payload.CPUUsage))
+	message = strings.ReplaceAll(message, "${ram_usage}", ns.safeString(payload.RAMUsage))
+	message = strings.ReplaceAll(message, "${disk_usage}", ns.safeString(payload.DiskUsage))
+	message = strings.ReplaceAll(message, "${network_usage}", ns.safeString(payload.NetworkUsage))
+	message = strings.ReplaceAll(message, "${cpu_temp}", ns.safeString(payload.CPUTemp))
+	message = strings.ReplaceAll(message, "${disk_io}", ns.safeString(payload.DiskIO))
+	message = strings.ReplaceAll(message, "${threshold}", ns.safeString(payload.Threshold))
+	
+	// Replace error message - important for uptime services
+	message = strings.ReplaceAll(message, "${error_message}", ns.safeString(payload.ErrorMessage))
+	message = strings.ReplaceAll(message, "${error}", ns.safeString(payload.ErrorMessage))
+	
+	// Replace time placeholders
+	message = strings.ReplaceAll(message, "${time}", payload.Timestamp.Format("2006-01-02 15:04:05"))
+	message = strings.ReplaceAll(message, "${timestamp}", payload.Timestamp.Format("2006-01-02 15:04:05"))
+	
+	return message
+}
+
+// safeString returns the string value or "N/A" if empty
+func (ns *NtfyService) safeString(value string) string {
+	if value == "" {
+		return "N/A"
+	}
+	return value
+}
+
+// generateDefaultUptimeMessage creates a default uptime message with proper formatting
+func (ns *NtfyService) generateDefaultUptimeMessage(payload *NotificationPayload) string {
+	// Status emoji mapping for NTFY
+	statusEmoji := "🔵"
+	switch strings.ToLower(payload.Status) {
+	case "up":
+		statusEmoji = "🟢"
+	case "down":
+		statusEmoji = "🔴"
+	case "warning":
+		statusEmoji = "🟡"
+	case "maintenance", "paused":
+		statusEmoji = "🟠"
+	}
+	
+	message := fmt.Sprintf("%s Service %s is %s.", statusEmoji, payload.ServiceName, strings.ToUpper(payload.Status))
+	
+	// Build formatted details
+	details := []string{}
+	
+	// Add URL or host
+	if payload.URL != "" {
+		details = append(details, fmt.Sprintf("Host URL: %s", payload.URL))
+	} else if payload.Host != "" {
+		details = append(details, fmt.Sprintf("Host: %s", payload.Host))
+	}
+	
+	// Add service type
+	if payload.ServiceType != "" {
+		details = append(details, fmt.Sprintf("Type: %s", strings.ToUpper(payload.ServiceType)))
+	}
+	
+	// Add port if available
+	if payload.Port > 0 {
+		details = append(details, fmt.Sprintf("Port: %d", payload.Port))
+	}
+	
+	// Add domain if available
+	if payload.Domain != "" {
+		details = append(details, fmt.Sprintf("Domain: %s", payload.Domain))
+	}
+	
+	// Add response time
+	if payload.ResponseTime > 0 {
+		details = append(details, fmt.Sprintf("Response time: %dms", payload.ResponseTime))
+	} else {
+		details = append(details, "Response time: N/A")
+	}
+	
+	// Add region info
+	if payload.RegionName != "" {
+		details = append(details, fmt.Sprintf("Region: %s", payload.RegionName))
+	}
+	
+	// Add agent info
+	if payload.AgentID != "" {
+		details = append(details, fmt.Sprintf("Agent: %s", payload.AgentID))
+	}
+	
+	// Add uptime if available
+	if payload.Uptime > 0 {
+		details = append(details, fmt.Sprintf("Uptime: %d%%", payload.Uptime))
+	}
+	
+	// Add timestamp
+	details = append(details, fmt.Sprintf("Time: %s", payload.Timestamp.Format("2006-01-02 15:04:05")))
+	
+	// Combine message with details
+	if len(details) > 0 {
+		message += "\n" + strings.Join(details, "\n")
+	}
+	
+	return message
+}
+
+// generateDefaultServerMessage creates a default server message
+func (ns *NtfyService) generateDefaultServerMessage(payload *NotificationPayload, resourceType string) string {
+	statusEmoji := "🔵"
+	switch strings.ToLower(payload.Status) {
+	case "up":
+		statusEmoji = "🟢"
+	case "down":
+		statusEmoji = "🔴"
+	case "warning":
+		statusEmoji = "🟡"
+	}
+	
+	return fmt.Sprintf("%s🖥️ Server %s (%s) status: %s", statusEmoji, payload.ServiceName, payload.Hostname, strings.ToUpper(payload.Status))
+}
@@ -1,3 +1,4 @@
+
 package notification

 import "time"
@@ -60,9 +61,9 @@ type AlertConfiguration struct {
 	SMTPPort              string `json:"smtp_port"`
 	WebhookID             string `json:"webhook_id"`
 	ChannelID             string `json:"channel_id"`
-	// New webhook fields
 	WebhookURL            string `json:"webhook_url"`
 	WebhookPayloadTemplate string `json:"webhook_payload_template"`
+	NtfyEndpoint          string `json:"ntfy_endpoint"`
 }

 // ServerNotificationTemplate represents a server notification template