caddybunnn

main.go

@@ -0,0 +1,113 @@
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	subdomain := flag.String("subdomain", "", "subdomain name (without .domain)")
+	port := flag.String("port", "", "target port")
+	yes := flag.Bool("y", false, "skip confirmation")
+	flag.Parse()
+
+	cfg, err := LoadOrCreateConfig()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+
+	reader := bufio.NewReader(os.Stdin)
+
+	if *subdomain == "" {
+		fmt.Printf("Subdomain (without .%s): ", cfg.Domain)
+		*subdomain, _ = reader.ReadString('\n')
+		*subdomain = strings.TrimSpace(*subdomain)
+	}
+
+	if err := validateSubdomain(*subdomain); err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+
+	if *port == "" {
+		fmt.Print("Target port: ")
+		*port, _ = reader.ReadString('\n')
+		*port = strings.TrimSpace(*port)
+	}
+
+	if err := validatePort(*port); err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+
+	fqdn := *subdomain + "." + cfg.Domain
+
+	fmt.Println()
+	fmt.Printf("  DNS:   CNAME %s → %s (Porkbun)\n", fqdn, cfg.Domain)
+	fmt.Printf("  Caddy: %s → localhost:%s\n", fqdn, *port)
+	fmt.Println()
+
+	if !*yes {
+		fmt.Print("Proceed? [Y/n] ")
+		answer, _ := reader.ReadString('\n')
+		answer = strings.TrimSpace(strings.ToLower(answer))
+		if answer != "" && answer != "y" && answer != "yes" {
+			fmt.Println("Aborted.")
+			os.Exit(0)
+		}
+	}
+
+	fmt.Println()
+
+	// Step 1: DNS
+	fmt.Print("[1/2] Creating DNS record on Porkbun... ")
+	_, err = CreateDNSRecord(cfg, *subdomain)
+	if err != nil {
+		fmt.Println("✗")
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+	fmt.Println("✓")
+
+	// Step 2: Caddy
+	fmt.Print("[2/2] Adding Caddy route... ")
+	err = AddCaddyRoute(cfg, fqdn, *port)
+	if err != nil {
+		fmt.Println("✗")
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		fmt.Fprintln(os.Stderr, "Warning: DNS record was created successfully. The Caddy route must be added manually.")
+		os.Exit(1)
+	}
+	fmt.Println("✓")
+
+	fmt.Printf("\nDone! %s → localhost:%s\n", fqdn, *port)
+}
+
+func validateSubdomain(s string) error {
+	if s == "" {
+		return fmt.Errorf("subdomain cannot be empty")
+	}
+	if strings.ContainsAny(s, ". \t") {
+		return fmt.Errorf("subdomain must not contain dots or spaces")
+	}
+	return nil
+}
+
+func validatePort(p string) error {
+	if p == "" {
+		return fmt.Errorf("port cannot be empty")
+	}
+	n, err := strconv.Atoi(p)
+	if err != nil {
+		return fmt.Errorf("port must be a number")
+	}
+	if n < 1 || n > 65535 {
+		return fmt.Errorf("port must be between 1 and 65535")
+	}
+	return nil
+}