fix(watchdog): fix watchdog unable to send webhook and simplify the parsing of json config

- Change webhook config headers and body from map to string format
- Move command parsing logic to separate function in command.go
- Add debug logging for webhook operations
- Improve exception handling with proper JSON parsing
- Simplify config loading logic with default values

watchdog/processor.go

@@ -1,18 +1,26 @@
 package watchdog
 
 import (
+	"encoding/json"
 	"fmt"
 	"strings"
 
 	"super-frpc/global"
+	"super-frpc/postLog"
 	"super-frpc/webhook"
 )
 
 func exceptionHandle(exceptionType string, serviceName string, errorMsg string) {
 	if global.CurrentConfig.Notification.Enabled {
-		body := make(map[string]string)
-		if global.CurrentConfig.Notification.Method == "Webhook" {
-			for k, v := range global.CurrentConfig.Webhook.Body {
+		if global.CurrentConfig.Notification.Method == "webhook" {
+			var bodyMap map[string]string
+			err := json.Unmarshal([]byte(global.CurrentConfig.Webhook.Body), &bodyMap)
+			if err != nil {
+				postLog.Error(fmt.Sprintf("[exceptionHandler] Failed to parse webhook body: %v", err))
+				return
+			}
+
+			for k, v := range bodyMap {
 				replaced := v
 				for strings.Contains(replaced, "{{ exceptionType }}") ||
 					strings.Contains(replaced, "{{ serviceName }}") ||
@@ -21,17 +29,33 @@ func exceptionHandle(exceptionType string, serviceName string, errorMsg string)
 					replaced = strings.ReplaceAll(replaced, "{{ serviceName }}", serviceName)
 					replaced = strings.ReplaceAll(replaced, "{{ exceptionMsg }}", errorMsg)
 				}
-				body[k] = replaced
+				bodyMap[k] = replaced
 			}
 
-			bodyJSON := ""
-			for k, v := range body {
-				bodyJSON = fmt.Sprintf(`{"%s": "%s"}`, k, v)
-				break
+			bodyJSON, err := json.Marshal(bodyMap)
+			if err != nil {
+				postLog.Error(fmt.Sprintf("[exceptionHandler] Failed to marshal webhook body: %v", err))
+				return
 			}
 
-			webhook.SendHook(global.CurrentConfig.Webhook.URL, global.CurrentConfig.Webhook.Method, global.CurrentConfig.Webhook.Headers, bodyJSON)
+			// Parse headers as map[string]string format
+			headersMap := make(map[string]string)
+			headerPairs := strings.Split(global.CurrentConfig.Webhook.Headers, ";")
+			for _, pair := range headerPairs {
+				pair = strings.TrimSpace(pair)
+				if pair == "" {
+					continue
+				}
+				parts := strings.SplitN(pair, ":", 2)
+				if len(parts) == 2 {
+					headersMap[strings.TrimSpace(parts[0])] = strings.TrimSpace(parts[1])
+				}
+			}
+
+			webhook.SendHook(global.CurrentConfig.Webhook.URL, global.CurrentConfig.Webhook.Method, headersMap, string(bodyJSON))
 		}
+	} else {
+		postLog.Warning("[exceptionHandler] exception occoured, but notification is not enabled!")
 	}
-	
+
 }