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109 lines
2.6 KiB
109 lines
2.6 KiB
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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from django.utils import timezone
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from django.core.cache import cache
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from django.core.exceptions import ValidationError
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from django.utils.translation import ugettext_lazy as _
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from common.utils import validate_ssh_private_key
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__all__ = [
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'init_model', 'generate_fake', 'private_key_validator', 'Connectivity',
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]
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def init_model():
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from . import SystemUser, AdminUser, Asset
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for cls in [SystemUser, AdminUser, Asset]:
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if hasattr(cls, 'initial'):
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cls.initial()
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def generate_fake():
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from . import SystemUser, AdminUser, Asset
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for cls in [SystemUser, AdminUser, Asset]:
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if hasattr(cls, 'generate_fake'):
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cls.generate_fake()
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def private_key_validator(value):
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if not validate_ssh_private_key(value):
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raise ValidationError(
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_('%(value)s is not an even number'),
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params={'value': value},
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)
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class Connectivity:
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UNREACHABLE, REACHABLE, UNKNOWN = range(0, 3)
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CONNECTIVITY_CHOICES = (
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(UNREACHABLE, _("Unreachable")),
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(REACHABLE, _('Reachable')),
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(UNKNOWN, _("Unknown")),
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)
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status = UNKNOWN
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datetime = timezone.now()
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def __init__(self, status, datetime):
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self.status = status
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self.datetime = datetime
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def display(self):
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return dict(self.__class__.CONNECTIVITY_CHOICES).get(self.status)
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def is_reachable(self):
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return self.status == self.REACHABLE
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def is_unreachable(self):
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return self.status == self.UNREACHABLE
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def is_unknown(self):
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return self.status == self.UNKNOWN
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@classmethod
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def unreachable(cls):
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return cls(cls.UNREACHABLE, timezone.now())
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@classmethod
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def reachable(cls):
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return cls(cls.REACHABLE, timezone.now())
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@classmethod
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def unknown(cls):
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return cls(cls.UNKNOWN, timezone.now())
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@classmethod
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def set(cls, key, value, ttl=None):
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cache.set(key, value, ttl)
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@classmethod
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def get(cls, key):
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value = cache.get(key, cls.unknown())
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if not isinstance(value, cls):
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value = cls.unknown()
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return value
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@classmethod
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def set_unreachable(cls, key, ttl=0):
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cls.set(key, cls.unreachable(), ttl)
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@classmethod
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def set_reachable(cls, key, ttl=0):
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cls.set(key, cls.reachable(), ttl)
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def __eq__(self, other):
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return self.status == other.status
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def __gt__(self, other):
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return self.status > other.status
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def __lt__(self, other):
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return not self.__gt__(other)
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def __str__(self):
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return self.display()
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