#!/usr/bin/env python3
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#
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# BitBake Toaster Implementation
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#
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# Copyright (C) 2015 Intel Corporation
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#
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# SPDX-License-Identifier: GPL-2.0-only
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#
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"""Custom management command checksocket."""
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import errno
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import socket
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from django.core.management.base import BaseCommand, CommandError
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from django.utils.encoding import force_text
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DEFAULT_ADDRPORT = "0.0.0.0:8000"
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class Command(BaseCommand):
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"""Custom management command."""
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help = 'Check if Toaster can listen on address:port'
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def add_arguments(self, parser):
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parser.add_argument('addrport', nargs='?', default=DEFAULT_ADDRPORT,
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help='ipaddr:port to check, %s by default' % \
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DEFAULT_ADDRPORT)
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def handle(self, *args, **options):
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addrport = options['addrport']
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if ':' not in addrport:
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raise CommandError('Invalid addr:port specified: %s' % addrport)
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splitted = addrport.split(':')
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try:
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splitted[1] = int(splitted[1])
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except ValueError:
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raise CommandError('Invalid port specified: %s' % splitted[1])
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self.stdout.write('Check if toaster can listen on %s' % addrport)
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try:
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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sock.bind(tuple(splitted))
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except (socket.error, OverflowError) as err:
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errors = {
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errno.EACCES: 'You don\'t have permission to access port %s' \
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% splitted[1],
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errno.EADDRINUSE: 'Port %s is already in use' % splitted[1],
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errno.EADDRNOTAVAIL: 'IP address can\'t be assigned to',
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}
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if hasattr(err, 'errno') and err.errno in errors:
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errtext = errors[err.errno]
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else:
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errtext = force_text(err)
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raise CommandError(errtext)
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self.stdout.write("OK")
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