/
scan.go
executable file
·173 lines (150 loc) · 4.12 KB
/
scan.go
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package commands
import (
"fmt"
"io/ioutil"
"log"
"os"
"os/exec"
"path/filepath"
"runtime"
"github.com/codegangsta/cli"
)
// Scan function returns the CLI commands for gort scan
func Scan() cli.Command {
return cli.Command{
Name: "scan",
Usage: "Scan for connected devices on Serial, USB, or Bluetooth ports",
Action: func(c *cli.Context) {
valid := false
for _, s := range []string{"serial", "usb", "bluetooth", "ble"} {
if s == c.Args().First() {
valid = true
}
}
usage := func() {
fmt.Println("Usage: petrockutil scan <serial|usb|bluetooth|ble>")
}
if valid == false {
fmt.Println("Invalid/no subcommand supplied.")
fmt.Println()
usage()
return
}
switch runtime.GOOS {
case "darwin":
if c.Args().First() == "ble" {
osxBLEScan()
return
}
cmd := exec.Command("/bin/sh", "-c", "ls /dev/{tty,cu}.*")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
log.Fatal(err)
}
case "linux":
switch c.Args().First() {
case "serial":
ports, _ := ioutil.ReadDir("/dev/serial/by-id/")
numOfPorts := len(ports)
if numOfPorts == 0 {
fmt.Println()
fmt.Println("No serial ports found.")
fmt.Println()
return
}
fmt.Println()
fmt.Println(numOfPorts, "serial port(s) found.")
fmt.Println()
for i, port := range ports {
portPath, _ := filepath.EvalSymlinks("/dev/serial/by-id/" + port.Name())
deviceInfoPath := "/sys/class/tty/" + filepath.Base(portPath) + "/device/../"
busNumber, busErr := ioutil.ReadFile(deviceInfoPath + "busnum")
deviceNumber, devErr := ioutil.ReadFile(deviceInfoPath + "devnum")
usbDevice := []byte(nil)
if busErr == nil && devErr == nil {
usb, usbErr := exec.Command("lsusb", "-s", "00"+string(busNumber)+":00"+string(deviceNumber)).Output()
if usbErr == nil {
usbDevice = usb
}
}
fmt.Printf("%d. [%s] - [%s]\n", i+1, portPath, port.Name())
if usbDevice != nil {
fmt.Println(" USB device: ", string(usbDevice))
}
}
case "bluetooth":
hci := "hci0"
if len(c.Args()) >= 3 {
hci = c.Args()[2]
}
cmd := exec.Command("hcitool", "-i", hci, "scan")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
log.Fatal(err)
}
case "ble":
hci := "hci0"
if len(c.Args()) >= 3 {
hci = c.Args()[2]
}
cmd := exec.Command("sudo", "hcitool", "-i", hci, "lescan")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
log.Fatal(err)
}
case "usb":
cmd := exec.Command("lsusb")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
log.Fatal(err)
}
default:
fmt.Println("Device type not yet supported.")
}
case "windows":
switch c.Args().First() {
case "serial":
out, _ := exec.Command("powershell", "Get-WmiObject Win32_SerialPort", "|", "Select-Object Name, DeviceID, Description").Output()
fmt.Println("Connected serialport devices: ")
fmt.Println(string(out))
default:
fmt.Println("Command not available on this OS.")
}
default:
fmt.Println("OS not yet supported.")
}
},
}
}
// osxBLEScan performs a Bluetooth LE scan on OSX
func osxBLEScan() {
// first, make sure we have the scanner utility. if not d/l it
scannerBin := petrockblockDirName() + "/scanner"
fileExists, _ := exists(scannerBin)
if !fileExists {
downloadOSXBLEScanner()
}
// run the scanner
cmd := exec.Command(scannerBin)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
log.Fatal(err)
}
}
func downloadOSXBLEScanner() {
dirName, _ := createPetrockblockDirectory()
zipFile := "https://downloads.petrockblock.com/petrockutil/blescanner.zip"
fileName := downloadFromUrl(dirName, zipFile)
unzipOSXScannerInstaller(dirName, dirName+"/"+fileName)
}
func unzipOSXScannerInstaller(dirName string, zipFile string) {
err := unzip(zipFile, dirName)
if err != nil {
log.Fatal(err)
}
}