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122 lines
4.0 KiB
122 lines
4.0 KiB
# -*- coding: utf-8 -*-
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#
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import socket
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import paramiko
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from django.utils.translation import ugettext_lazy as _
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from common.utils import get_logger, lazyproperty
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from orgs.mixins.models import OrgManager
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from assets.const import GATEWAY_NAME, Connectivity
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from assets.models.platform import Platform
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from assets.models.account import Account
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from .asset.host import Host
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logger = get_logger(__file__)
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__all__ = ['Gateway']
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class GatewayManager(OrgManager):
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def get_queryset(self):
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queryset = super().get_queryset()
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queryset = queryset.filter(platform__name=GATEWAY_NAME)
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return queryset
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def bulk_create(self, objs, batch_size=None, ignore_conflicts=False):
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default_platform = Gateway.default_platform()
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for obj in objs:
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obj.platform = default_platform
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return super().bulk_create(objs, batch_size, ignore_conflicts)
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class Gateway(Host):
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objects = GatewayManager()
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class Meta:
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proxy = True
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def save(self, *args, **kwargs):
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self.platform = self.default_platform()
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return super().save(*args, **kwargs)
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@classmethod
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def default_platform(cls):
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return Platform.objects.get(name=GATEWAY_NAME, internal=True)
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@lazyproperty
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def select_account(self):
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account = self.accounts.active().order_by('-privileged', '-date_updated').first()
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return account
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def test_connective(self, local_port=None):
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local_port = self.port if local_port is None else local_port
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client = paramiko.SSHClient()
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client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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proxy = paramiko.SSHClient()
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proxy.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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if not isinstance(self.select_account, Account):
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err = _('No account')
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return False, err
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logger.debug('Test account: {}'.format(self.select_account))
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try:
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proxy.connect(
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self.address,
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port=self.port,
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username=self.select_account.username,
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password=self.select_account.secret,
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pkey=self.select_account.private_key_obj
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)
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except(
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paramiko.AuthenticationException,
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paramiko.BadAuthenticationType,
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paramiko.SSHException,
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paramiko.ChannelException,
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paramiko.ssh_exception.NoValidConnectionsError,
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socket.gaierror
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) as e:
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err = str(e)
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if err.startswith('[Errno None] Unable to connect to port'):
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err = _('Unable to connect to port {port} on {address}')
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err = err.format(port=self.port, address=self.address)
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elif err == 'Authentication failed.':
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err = _('Authentication failed')
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elif err == 'Connect failed':
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err = _('Connect failed')
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self.set_connectivity(Connectivity.FAILED)
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return False, err
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try:
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sock = proxy.get_transport().open_channel(
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'direct-tcpip', ('127.0.0.1', local_port), ('127.0.0.1', 0)
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)
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client.connect(
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'127.0.0.1',
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sock=sock,
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timeout=5,
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port=local_port,
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username=self.select_account.username,
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password=self.select_account.secret,
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key_filename=self.select_account.private_key_path,
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)
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except (
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paramiko.SSHException,
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paramiko.ssh_exception.SSHException,
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paramiko.ChannelException,
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paramiko.AuthenticationException,
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TimeoutError
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) as e:
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err = getattr(e, 'text', str(e))
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if err == 'Connect failed':
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err = _('Connect failed')
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self.set_connectivity(Connectivity.FAILED)
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return False, err
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finally:
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client.close()
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self.set_connectivity(Connectivity.OK)
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return True, None
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