130 lines
2.5 KiB
Go
130 lines
2.5 KiB
Go
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"flag"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/tarm/serial"
|
|
)
|
|
|
|
type Config struct {
|
|
Port string `json:"port"`
|
|
URL string `json:"url"`
|
|
BaudRate int `json:"baud"`
|
|
}
|
|
|
|
var defaultConfig = Config{
|
|
Port: "/dev/ttyACM0",
|
|
URL: "https://scanner.sekidesu.xyz/scan",
|
|
BaudRate: 115200,
|
|
}
|
|
|
|
const configPath = "config.json"
|
|
|
|
func main() {
|
|
cfg := loadConfig()
|
|
|
|
portName := flag.String("port", cfg.Port, "Serial port name")
|
|
endpoint := flag.String("url", cfg.URL, "Target URL endpoint")
|
|
baudRate := flag.Int("baud", cfg.BaudRate, "Baud rate")
|
|
save := flag.Bool("save", false, "Save current parameters to config.json")
|
|
flag.Parse()
|
|
|
|
cfg.Port = *portName
|
|
cfg.URL = *endpoint
|
|
cfg.BaudRate = *baudRate
|
|
|
|
if *save {
|
|
saveConfig(cfg)
|
|
fmt.Println("Settings saved to", configPath)
|
|
}
|
|
|
|
serialConfig := &serial.Config{
|
|
Name: cfg.Port,
|
|
Baud: cfg.BaudRate,
|
|
ReadTimeout: time.Second * 2,
|
|
}
|
|
|
|
port, err := serial.OpenPort(serialConfig)
|
|
if err != nil {
|
|
fmt.Printf("Error opening port %s: %v\n", cfg.Port, err)
|
|
os.Exit(1)
|
|
}
|
|
defer port.Close()
|
|
|
|
fmt.Printf("Listening on %s (Baud: %d)...\n", cfg.Port, cfg.BaudRate)
|
|
fmt.Printf("Sending data to: %s\n", cfg.URL)
|
|
|
|
buf := make([]byte, 128)
|
|
for {
|
|
n, err := port.Read(buf)
|
|
if err != nil {
|
|
if err != io.EOF {
|
|
fmt.Printf("Read error: %v\n", err)
|
|
}
|
|
continue
|
|
}
|
|
|
|
if n > 0 {
|
|
content := strings.TrimSpace(string(buf[:n]))
|
|
if content != "" {
|
|
sendToEndpoint(cfg.URL, content)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func loadConfig() Config {
|
|
if _, err := os.Stat(configPath); os.IsNotExist(err) {
|
|
saveConfig(defaultConfig)
|
|
return defaultConfig
|
|
}
|
|
|
|
file, err := os.Open(configPath)
|
|
if err != nil {
|
|
return defaultConfig
|
|
}
|
|
defer file.Close()
|
|
|
|
var cfg Config
|
|
decoder := json.NewDecoder(file)
|
|
if err := decoder.Decode(&cfg); err != nil {
|
|
return defaultConfig
|
|
}
|
|
return cfg
|
|
}
|
|
|
|
func saveConfig(cfg Config) {
|
|
file, err := os.Create(configPath)
|
|
if err != nil {
|
|
fmt.Printf("Failed to create/save config: %v\n", err)
|
|
return
|
|
}
|
|
defer file.Close()
|
|
|
|
encoder := json.NewEncoder(file)
|
|
encoder.SetIndent("", " ")
|
|
encoder.Encode(cfg)
|
|
}
|
|
|
|
func sendToEndpoint(baseURL, content string) {
|
|
client := &http.Client{
|
|
Timeout: 5 * time.Second,
|
|
}
|
|
fullURL := fmt.Sprintf("%s?content=%s", baseURL, url.QueryEscape(content))
|
|
resp, err := client.Get(fullURL)
|
|
if err != nil {
|
|
fmt.Printf("Network Error: %v\n", err)
|
|
return
|
|
}
|
|
defer resp.Body.Close()
|
|
fmt.Printf("Data: [%s] | Status: %s\n", content, resp.Status)
|
|
}
|