wehub-resource-sync
357 lines
12 KiB
Go
357 lines
12 KiB
Go
package notification
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"net/http"
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"strings"
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)
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// GotifyService handles Gotify notifications
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type GotifyService struct{}
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// NewGotifyService creates a new Gotify notification service
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func NewGotifyService() *GotifyService {
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return &GotifyService{}
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}
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// GotifyPayload represents the payload for Gotify API
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type GotifyPayload struct {
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Message string `json:"message"`
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Title string `json:"title,omitempty"`
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Priority int `json:"priority,omitempty"`
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}
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// GotifyResponse represents the response from Gotify API
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type GotifyResponse struct {
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ID int `json:"id"`
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AppID int `json:"appid"`
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Message string `json:"message"`
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Title string `json:"title"`
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Priority int `json:"priority"`
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Date string `json:"date"`
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}
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// SendNotification sends a notification via Gotify
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func (gs *GotifyService) SendNotification(config *AlertConfiguration, message string) error {
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// fmt.Printf("📱 [GOTIFY] Attempting to send notification...\n")
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// fmt.Printf("📱 [GOTIFY] Config - API Token: %s, Server URL: %s, Notify Name: %s\n",
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// maskToken(config.APIToken), config.ServerURL, config.NotifyName)
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// fmt.Printf("📱 [GOTIFY] Message: %s\n", message)
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if config.APIToken == "" || config.ServerURL == "" {
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return fmt.Errorf("Gotify API token and server URL are required")
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}
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// Prepare the payload
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payload := GotifyPayload{
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Message: message,
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Title: config.NotifyName, // Use notify_name as the title
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Priority: 5, // Default priority
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}
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jsonData, err := json.Marshal(payload)
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if err != nil {
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// fmt.Printf("❌ [GOTIFY] JSON marshal error: %v\n", err)
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return err
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}
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// fmt.Printf("📱 [GOTIFY] Payload: %s\n", string(jsonData))
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// fmt.Printf("📱 [GOTIFY] Sending POST request to Gotify API...\n")
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// Construct the Gotify API URL
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apiURL := strings.TrimRight(config.ServerURL, "/") + "/message?token=" + config.APIToken
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// Send the request to Gotify API
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resp, err := http.Post(apiURL, "application/json", bytes.NewBuffer(jsonData))
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if err != nil {
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// fmt.Printf("❌ [GOTIFY] HTTP error: %v\n", err)
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return err
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}
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defer resp.Body.Close()
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// Check status code
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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// fmt.Printf("❌ [GOTIFY] HTTP status error: %d\n", resp.StatusCode)
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return fmt.Errorf("Gotify API error: HTTP %d", resp.StatusCode)
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}
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// Parse the response
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var gotifyResp GotifyResponse
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if err := json.NewDecoder(resp.Body).Decode(&gotifyResp); err != nil {
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// fmt.Printf("❌ [GOTIFY] Response decode error: %v\n", err)
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return err
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}
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// fmt.Printf("📱 [GOTIFY] API response: %+v\n", gotifyResp)
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// Check if the message was created successfully
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if gotifyResp.ID == 0 {
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// fmt.Printf("❌ [GOTIFY] API error: No message ID returned\n")
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return fmt.Errorf("Gotify API error: message not created")
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}
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// fmt.Printf("✅ [GOTIFY] Message sent successfully! ID: %d\n", gotifyResp.ID)
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return nil
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}
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// SendServerNotification sends a server-specific notification via Gotify
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func (gs *GotifyService) SendServerNotification(config *AlertConfiguration, payload *NotificationPayload, template *ServerNotificationTemplate, resourceType string) error {
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message := gs.generateServerMessage(payload, template, resourceType)
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return gs.SendNotification(config, message)
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}
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// SendServiceNotification sends a service-specific notification via Gotify
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func (gs *GotifyService) SendServiceNotification(config *AlertConfiguration, payload *NotificationPayload, template *ServiceNotificationTemplate) error {
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message := gs.generateServiceMessage(payload, template)
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return gs.SendNotification(config, message)
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}
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// generateServerMessage creates a message for server notifications using server template
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func (gs *GotifyService) generateServerMessage(payload *NotificationPayload, template *ServerNotificationTemplate, resourceType string) string {
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var templateMessage string
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// Select appropriate template message based on status and resource type
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switch strings.ToLower(payload.Status) {
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case "down":
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templateMessage = template.DownMessage
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case "up":
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templateMessage = template.UpMessage
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case "warning":
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templateMessage = template.WarningMessage
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case "paused":
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templateMessage = template.PausedMessage
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default:
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// Handle resource-specific messages
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switch resourceType {
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case "cpu":
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if strings.Contains(strings.ToLower(payload.Status), "restore") {
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templateMessage = template.RestoreCPUMessage
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} else {
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templateMessage = template.CPUMessage
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}
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case "ram", "memory":
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if strings.Contains(strings.ToLower(payload.Status), "restore") {
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templateMessage = template.RestoreRAMMessage
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} else {
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templateMessage = template.RAMMessage
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}
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case "disk":
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if strings.Contains(strings.ToLower(payload.Status), "restore") {
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templateMessage = template.RestoreDiskMessage
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} else {
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templateMessage = template.DiskMessage
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}
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case "network":
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if strings.Contains(strings.ToLower(payload.Status), "restore") {
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templateMessage = template.RestoreNetworkMessage
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} else {
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templateMessage = template.NetworkMessage
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}
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case "cpu_temp", "cpu_temperature":
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if strings.Contains(strings.ToLower(payload.Status), "restore") {
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templateMessage = template.RestoreCPUTempMessage
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} else {
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templateMessage = template.CPUTempMessage
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}
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case "disk_io":
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if strings.Contains(strings.ToLower(payload.Status), "restore") {
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templateMessage = template.RestoreDiskIOMessage
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} else {
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templateMessage = template.DiskIOMessage
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}
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default:
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templateMessage = template.WarningMessage
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}
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}
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// If no template message found, use a default
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if templateMessage == "" {
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templateMessage = gs.generateDefaultServerMessage(payload, resourceType)
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}
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return gs.replacePlaceholders(templateMessage, payload)
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}
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// generateServiceMessage creates a message for service notifications using service template
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func (gs *GotifyService) generateServiceMessage(payload *NotificationPayload, template *ServiceNotificationTemplate) string {
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var templateMessage string
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// Select appropriate template message based on status
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switch strings.ToLower(payload.Status) {
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case "up":
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templateMessage = template.UpMessage
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case "down":
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templateMessage = template.DownMessage
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case "maintenance":
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templateMessage = template.MaintenanceMessage
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case "incident":
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templateMessage = template.IncidentMessage
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case "resolved":
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templateMessage = template.ResolvedMessage
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case "warning":
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templateMessage = template.WarningMessage
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default:
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templateMessage = template.WarningMessage
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}
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// If no template message found, use a default
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if templateMessage == "" {
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templateMessage = gs.generateDefaultUptimeMessage(payload)
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}
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return gs.replacePlaceholders(templateMessage, payload)
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}
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// replacePlaceholders replaces all placeholders in the message with actual values
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func (gs *GotifyService) replacePlaceholders(message string, payload *NotificationPayload) string {
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// Replace basic placeholders
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message = strings.ReplaceAll(message, "${service_name}", payload.ServiceName)
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message = strings.ReplaceAll(message, "${server_name}", payload.ServiceName) // server_name maps to service_name
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message = strings.ReplaceAll(message, "${status}", strings.ToUpper(payload.Status))
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message = strings.ReplaceAll(message, "${host}", gs.safeString(payload.Host))
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message = strings.ReplaceAll(message, "${hostname}", gs.safeString(payload.Hostname))
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// Replace URL with fallback to host
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url := gs.safeString(payload.URL)
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if url == "N/A" && payload.Host != "" {
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url = payload.Host
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}
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message = strings.ReplaceAll(message, "${url}", url)
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// Replace domain
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message = strings.ReplaceAll(message, "${domain}", gs.safeString(payload.Domain))
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// Replace service type
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if payload.ServiceType != "" {
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message = strings.ReplaceAll(message, "${service_type}", strings.ToUpper(payload.ServiceType))
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} else {
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message = strings.ReplaceAll(message, "${service_type}", "N/A")
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}
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// Replace region and agent info
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message = strings.ReplaceAll(message, "${region_name}", gs.safeString(payload.RegionName))
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message = strings.ReplaceAll(message, "${agent_id}", gs.safeString(payload.AgentID))
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// Handle numeric fields safely
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if payload.Port > 0 {
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message = strings.ReplaceAll(message, "${port}", fmt.Sprintf("%d", payload.Port))
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} else {
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message = strings.ReplaceAll(message, "${port}", "N/A")
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}
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if payload.ResponseTime > 0 {
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message = strings.ReplaceAll(message, "${response_time}", fmt.Sprintf("%dms", payload.ResponseTime))
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} else {
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message = strings.ReplaceAll(message, "${response_time}", "N/A")
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}
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if payload.Uptime > 0 {
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message = strings.ReplaceAll(message, "${uptime}", fmt.Sprintf("%d%%", payload.Uptime))
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} else {
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message = strings.ReplaceAll(message, "${uptime}", "N/A")
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}
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// Replace server monitoring fields
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message = strings.ReplaceAll(message, "${cpu_usage}", gs.safeString(payload.CPUUsage))
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message = strings.ReplaceAll(message, "${ram_usage}", gs.safeString(payload.RAMUsage))
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message = strings.ReplaceAll(message, "${disk_usage}", gs.safeString(payload.DiskUsage))
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message = strings.ReplaceAll(message, "${network_usage}", gs.safeString(payload.NetworkUsage))
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message = strings.ReplaceAll(message, "${cpu_temp}", gs.safeString(payload.CPUTemp))
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message = strings.ReplaceAll(message, "${disk_io}", gs.safeString(payload.DiskIO))
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message = strings.ReplaceAll(message, "${threshold}", gs.safeString(payload.Threshold))
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// Replace SSL certificate fields
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message = strings.ReplaceAll(message, "${certificate_name}", gs.safeString(payload.CertificateName))
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message = strings.ReplaceAll(message, "${expiry_date}", gs.safeString(payload.ExpiryDate))
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message = strings.ReplaceAll(message, "${days_left}", gs.safeString(payload.DaysLeft))
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message = strings.ReplaceAll(message, "${issuer_cn}", gs.safeString(payload.IssuerCN))
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message = strings.ReplaceAll(message, "${issuer}", gs.safeString(payload.IssuerCN)) // alias
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// Replace error message - important for uptime services
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message = strings.ReplaceAll(message, "${error_message}", gs.safeString(payload.ErrorMessage))
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message = strings.ReplaceAll(message, "${error}", gs.safeString(payload.ErrorMessage))
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message = strings.ReplaceAll(message, "${message}", gs.safeString(payload.Message))
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// Replace time placeholders
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message = strings.ReplaceAll(message, "${time}", payload.Timestamp.Format("2006-01-02 15:04:05"))
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message = strings.ReplaceAll(message, "${timestamp}", payload.Timestamp.Format("2006-01-02 15:04:05"))
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return message
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}
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// safeString returns the string value or "N/A" if empty
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func (gs *GotifyService) safeString(value string) string {
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if value == "" {
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return "N/A"
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}
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return value
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}
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// generateDefaultUptimeMessage creates a default uptime message with proper formatting
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func (gs *GotifyService) generateDefaultUptimeMessage(payload *NotificationPayload) string {
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message := fmt.Sprintf("Service %s is %s.", payload.ServiceName, strings.ToUpper(payload.Status))
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// Build formatted details
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details := []string{}
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// Add URL or host
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if payload.URL != "" {
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details = append(details, fmt.Sprintf("Host URL: %s", payload.URL))
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} else if payload.Host != "" {
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details = append(details, fmt.Sprintf("Host: %s", payload.Host))
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}
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// Add service type
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if payload.ServiceType != "" {
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details = append(details, fmt.Sprintf("Type: %s", strings.ToUpper(payload.ServiceType)))
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}
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// Add port if available
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if payload.Port > 0 {
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details = append(details, fmt.Sprintf("Port: %d", payload.Port))
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}
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// Add domain if available
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if payload.Domain != "" {
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details = append(details, fmt.Sprintf("Domain: %s", payload.Domain))
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}
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// Add response time
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if payload.ResponseTime > 0 {
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details = append(details, fmt.Sprintf("Response time: %dms", payload.ResponseTime))
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} else {
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details = append(details, "Response time: N/A")
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}
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// Add region info
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if payload.RegionName != "" {
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details = append(details, fmt.Sprintf("Region: %s", payload.RegionName))
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}
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// Add agent info
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if payload.AgentID != "" {
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details = append(details, fmt.Sprintf("Agent: %s", payload.AgentID))
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}
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// Add uptime if available
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if payload.Uptime > 0 {
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details = append(details, fmt.Sprintf("Uptime: %d%%", payload.Uptime))
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}
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// Add timestamp
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details = append(details, fmt.Sprintf("Time: %s", payload.Timestamp.Format("2006-01-02 15:04:05")))
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// Combine message with details
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if len(details) > 0 {
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message += "\n" + strings.Join(details, "\n")
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}
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return message
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}
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// generateDefaultServerMessage creates a default server message
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func (gs *GotifyService) generateDefaultServerMessage(payload *NotificationPayload, resourceType string) string {
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return fmt.Sprintf("Server %s (%s) status: %s", payload.ServiceName, payload.Hostname, strings.ToUpper(payload.Status))
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} |