fix: довести fix42 до production (cleanups, journald limits, docs)

apps/service/journal.go

@@ -12,16 +12,23 @@ import (
 )
 
 type journalctlLogLine struct {
-	Message            string `json:"MESSAGE"`
-	Priority           string `json:"PRIORITY"`
-	RealtimeTimestamp  string `json:"__REALTIME_TIMESTAMP"`
+	Message           string `json:"MESSAGE"`
+	Priority          string `json:"PRIORITY"`
+	RealtimeTimestamp string `json:"__REALTIME_TIMESTAMP"`
+}
+
+func normalizeJournalLineLimit(value int, fallback int, max int) int {
+	if value <= 0 {
+		return fallback
+	}
+	if value > max {
+		return max
+	}
+	return value
 }
 
 func ReadHysteriaJournalLogs(numLine int) ([]vo.LogHysteria2Vo, int, error) {
-	lines := 100
-	if numLine > 0 {
-		lines = numLine
-	}
+	lines := normalizeJournalLineLimit(numLine, 100, 300)
 
 	output, err := util.Exec(fmt.Sprintf("journalctl --no-pager -u hysteria-server.service -n %d -o json", lines))
 	if err != nil {
@@ -52,10 +59,7 @@ func ReadHysteriaJournalLogs(numLine int) ([]vo.LogHysteria2Vo, int, error) {
 }
 
 func ExportHysteriaJournalLogs(numLine int) (string, error) {
-	lines := 5000
-	if numLine > 0 {
-		lines = numLine
-	}
+	lines := normalizeJournalLineLimit(numLine, 5000, 10000)
 
 	return util.Exec(fmt.Sprintf("journalctl --no-pager -u hysteria-server.service -n %d -o short-iso", lines))
 }
@@ -117,4 +121,3 @@ func mapJournalPriorityToLevel(priority string) string {
 		return "info"
 	}
 }
-