first

backend/internal/mail/logs.go

@@ -0,0 +1,88 @@
+package mail
+
+import (
+	"bufio"
+	"bytes"
+	"context"
+	"os/exec"
+	"regexp"
+	"strings"
+	"time"
+)
+
+type LogEntry struct {
+	Timestamp string `json:"timestamp"`
+	Priority  string `json:"priority"`
+	Message   string `json:"message"`
+}
+
+func GetLogs(hours int, filter string) ([]LogEntry, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	args := []string{
+		"-u", "postfix",
+		"--since", formatDuration(hours),
+		"--no-pager",
+		"-o", "short=false",
+	}
+
+	cmd := exec.CommandContext(ctx, "journalctl", args...)
+	var out bytes.Buffer
+	cmd.Stdout = &out
+
+	if err := cmd.Run(); err != nil {
+		return nil, err
+	}
+
+	var entries []LogEntry
+	scanner := bufio.NewScanner(&out)
+	priorityRegex := regexp.MustCompile(`\[([^\]]+)\]`)
+
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		if filter != "" && !strings.Contains(strings.ToLower(line), strings.ToLower(filter)) {
+			continue
+		}
+
+		parts := strings.SplitN(line, " ", 4)
+		if len(parts) < 4 {
+			continue
+		}
+
+		timestamp := parts[0] + " " + parts[1]
+
+		matches := priorityRegex.FindStringSubmatch(parts[2])
+		priority := "info"
+		if len(matches) > 1 {
+			priority = matches[1]
+		} else if strings.Contains(parts[2], "err") {
+			priority = "err"
+		} else if strings.Contains(parts[2], "warning") || strings.Contains(parts[2], "warn") {
+			priority = "warning"
+		}
+
+		message := parts[3]
+
+		if filter != "" && !strings.Contains(strings.ToLower(message), strings.ToLower(filter)) {
+			continue
+		}
+
+		entries = append(entries, LogEntry{
+			Timestamp: timestamp,
+			Priority:  priority,
+			Message:   message,
+		})
+	}
+
+	if entries == nil {
+		entries = []LogEntry{}
+	}
+
+	return entries, nil
+}
+
+func formatDuration(hours int) string {
+	return time.Now().Add(-time.Duration(hours) * time.Hour).Format("15:04:05 2006-01-02")
+}