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jumpserver/apps/terminal/models/terminal.py

251 lines
8.0 KiB

from __future__ import unicode_literals
import uuid
from django.db import models
from django.utils.translation import ugettext_lazy as _
from django.conf import settings
from django.core.cache import cache
from users.models import User
from .. import const
class ComputeStatusMixin:
# system status
@staticmethod
def _common_compute_system_status(value, thresholds):
if thresholds[0] <= value <= thresholds[1]:
return const.ComponentStatusChoices.normal.value
elif thresholds[1] < value <= thresholds[2]:
return const.ComponentStatusChoices.high.value
else:
return const.ComponentStatusChoices.critical.value
def _compute_system_cpu_load_1_status(self, value):
thresholds = [0, 5, 20]
return self._common_compute_system_status(value, thresholds)
def _compute_system_memory_used_percent_status(self, value):
thresholds = [0, 85, 95]
return self._common_compute_system_status(value, thresholds)
def _compute_system_disk_used_percent_status(self, value):
thresholds = [0, 80, 99]
return self._common_compute_system_status(value, thresholds)
def _compute_system_status(self, state):
system_status_keys = [
'system_cpu_load_1', 'system_memory_used_percent', 'system_disk_used_percent'
]
system_status = []
for system_status_key in system_status_keys:
state_value = state[system_status_key]
status = getattr(self, f'_compute_{system_status_key}_status')(state_value)
system_status.append(status)
return system_status
def _compute_component_status(self, state):
system_status = self._compute_system_status(state)
if const.ComponentStatusChoices.critical in system_status:
return const.ComponentStatusChoices.critical
elif const.ComponentStatusChoices.high in system_status:
return const.ComponentStatusChoices.high
else:
return const.ComponentStatusChoices.normal
@staticmethod
def _compute_component_status_display(status):
return getattr(const.ComponentStatusChoices, status).label
class TerminalStateMixin(ComputeStatusMixin):
CACHE_KEY_COMPONENT_STATE = 'CACHE_KEY_COMPONENT_STATE_TERMINAL_{}'
CACHE_TIMEOUT = 120
@property
def cache_key(self):
return self.CACHE_KEY_COMPONENT_STATE.format(str(self.id))
# get
def _get_from_cache(self):
return cache.get(self.cache_key)
def _set_to_cache(self, state):
cache.set(self.cache_key, state, self.CACHE_TIMEOUT)
# set
def _add_status(self, state):
status = self._compute_component_status(state)
status_display = self._compute_component_status_display(status)
state.update({
'status': status,
'status_display': status_display
})
@property
def state(self):
state = self._get_from_cache()
return state or {}
@state.setter
def state(self, state):
self._add_status(state)
self._set_to_cache(state)
class TerminalStatusMixin(TerminalStateMixin):
# alive
@property
def is_alive(self):
return bool(self.state)
# status
@property
def status(self):
if self.is_alive:
return self.state['status']
else:
return const.ComponentStatusChoices.critical.value
@property
def status_display(self):
return self._compute_component_status_display(self.status)
@property
def is_normal(self):
return self.status == const.ComponentStatusChoices.normal.value
@property
def is_high(self):
return self.status == const.ComponentStatusChoices.high.value
@property
def is_critical(self):
return self.status == const.ComponentStatusChoices.critical.value
class Terminal(TerminalStatusMixin, models.Model):
id = models.UUIDField(default=uuid.uuid4, primary_key=True)
name = models.CharField(max_length=128, verbose_name=_('Name'))
type = models.CharField(
choices=const.TerminalTypeChoices.choices, default=const.TerminalTypeChoices.koko.value,
max_length=64, verbose_name=_('type')
)
remote_addr = models.CharField(max_length=128, blank=True, verbose_name=_('Remote Address'))
ssh_port = models.IntegerField(verbose_name=_('SSH Port'), default=2222)
http_port = models.IntegerField(verbose_name=_('HTTP Port'), default=5000)
command_storage = models.CharField(max_length=128, verbose_name=_("Command storage"), default='default')
replay_storage = models.CharField(max_length=128, verbose_name=_("Replay storage"), default='default')
user = models.OneToOneField(User, related_name='terminal', verbose_name='Application User', null=True, on_delete=models.CASCADE)
is_accepted = models.BooleanField(default=False, verbose_name='Is Accepted')
is_deleted = models.BooleanField(default=False)
date_created = models.DateTimeField(auto_now_add=True)
comment = models.TextField(blank=True, verbose_name=_('Comment'))
@property
def is_active(self):
if self.user and self.user.is_active:
return True
return False
@is_active.setter
def is_active(self, active):
if self.user:
self.user.is_active = active
self.user.save()
def get_command_storage(self):
from .storage import CommandStorage
storage = CommandStorage.objects.filter(name=self.command_storage).first()
return storage
def get_command_storage_config(self):
s = self.get_command_storage()
if s:
config = s.config
else:
config = settings.DEFAULT_TERMINAL_COMMAND_STORAGE
return config
def get_command_storage_setting(self):
config = self.get_command_storage_config()
return {"TERMINAL_COMMAND_STORAGE": config}
def get_replay_storage(self):
from .storage import ReplayStorage
storage = ReplayStorage.objects.filter(name=self.replay_storage).first()
return storage
def get_replay_storage_config(self):
s = self.get_replay_storage()
if s:
config = s.config
else:
config = settings.DEFAULT_TERMINAL_REPLAY_STORAGE
return config
def get_replay_storage_setting(self):
config = self.get_replay_storage_config()
return {"TERMINAL_REPLAY_STORAGE": config}
@staticmethod
def get_login_title_setting():
login_title = None
if settings.XPACK_ENABLED:
from xpack.plugins.interface.models import Interface
login_title = Interface.get_login_title()
return {'TERMINAL_HEADER_TITLE': login_title}
@property
def config(self):
configs = {}
for k in dir(settings):
if not k.startswith('TERMINAL'):
continue
configs[k] = getattr(settings, k)
configs.update(self.get_command_storage_setting())
configs.update(self.get_replay_storage_setting())
configs.update(self.get_login_title_setting())
configs.update({
'SECURITY_MAX_IDLE_TIME': settings.SECURITY_MAX_IDLE_TIME
})
return configs
@property
def service_account(self):
return self.user
def create_app_user(self):
random = uuid.uuid4().hex[:6]
user, access_key = User.create_app_user(
name="{}-{}".format(self.name, random), comment=self.comment
)
self.user = user
self.save()
return user, access_key
def delete(self, using=None, keep_parents=False):
if self.user:
self.user.delete()
self.user = None
self.is_deleted = True
self.save()
return
def __str__(self):
status = "Active"
if not self.is_accepted:
status = "NotAccept"
elif self.is_deleted:
status = "Deleted"
elif not self.is_active:
status = "Disable"
return '%s: %s' % (self.name, status)
class Meta:
ordering = ('is_accepted',)
db_table = "terminal"