checksocket.py 1.9 KB

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  1. #!/usr/bin/env python
  2. #
  3. # BitBake Toaster Implementation
  4. #
  5. # Copyright (C) 2015 Intel Corporation
  6. #
  7. # SPDX-License-Identifier: GPL-2.0-only
  8. #
  9. """Custom management command checksocket."""
  10. import errno
  11. import socket
  12. from django.core.management.base import BaseCommand, CommandError
  13. from django.utils.encoding import force_text
  14. DEFAULT_ADDRPORT = "0.0.0.0:8000"
  15. class Command(BaseCommand):
  16. """Custom management command."""
  17. help = 'Check if Toaster can listen on address:port'
  18. def add_arguments(self, parser):
  19. parser.add_argument('addrport', nargs='?', default=DEFAULT_ADDRPORT,
  20. help='ipaddr:port to check, %s by default' % \
  21. DEFAULT_ADDRPORT)
  22. def handle(self, *args, **options):
  23. addrport = options['addrport']
  24. if ':' not in addrport:
  25. raise CommandError('Invalid addr:port specified: %s' % addrport)
  26. splitted = addrport.split(':')
  27. try:
  28. splitted[1] = int(splitted[1])
  29. except ValueError:
  30. raise CommandError('Invalid port specified: %s' % splitted[1])
  31. self.stdout.write('Check if toaster can listen on %s' % addrport)
  32. try:
  33. sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  34. sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
  35. sock.bind(tuple(splitted))
  36. except (socket.error, OverflowError) as err:
  37. errors = {
  38. errno.EACCES: 'You don\'t have permission to access port %s' \
  39. % splitted[1],
  40. errno.EADDRINUSE: 'Port %s is already in use' % splitted[1],
  41. errno.EADDRNOTAVAIL: 'IP address can\'t be assigned to',
  42. }
  43. if hasattr(err, 'errno') and err.errno in errors:
  44. errtext = errors[err.errno]
  45. else:
  46. errtext = force_text(err)
  47. raise CommandError(errtext)
  48. self.stdout.write("OK")