jumpserver/apps/terminal/notifications.py

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from typing import Callable
from django.conf import settings
from django.template.loader import render_to_string
from django.utils.translation import gettext_lazy as _
from common.utils import get_logger, reverse
from common.utils import lazyproperty
from common.utils.timezone import local_now_display
from notifications.backends import BACKEND
from notifications.models import SystemMsgSubscription
from notifications.notifications import SystemMessage, UserMessage
from terminal.const import RiskLevelChoices
from terminal.models import Session, Command
from users.models import User
logger = get_logger(__name__)
__all__ = (
'CommandAlertMessage', 'CommandExecutionAlert', 'StorageConnectivityMessage',
'CommandWarningMessage'
)
CATEGORY = 'terminal'
CATEGORY_LABEL = _('Sessions')
class CommandAlertMixin:
command: dict
_get_message: Callable
message_type_label: str
def __str__(self):
return str(self.message_type_label)
@lazyproperty
def subject(self):
_input = self.command['input']
if isinstance(_input, str):
_input = _input.replace('\r\n', ' ').replace('\r', ' ').replace('\n', ' ')
subject = self.message_type_label + ": %(cmd)s" % {
'cmd': _input
}
return subject
@classmethod
def post_insert_to_db(cls, subscription: SystemMsgSubscription):
"""
兼容操作,试图用 `settings.SECURITY_INSECURE_COMMAND_EMAIL_RECEIVER` 的邮件地址
assets_systemuser_assets找到用户把用户设置为默认接收者
"""
from settings.models import Setting
db_setting = Setting.objects.filter(
name='SECURITY_INSECURE_COMMAND_EMAIL_RECEIVER'
).first()
if db_setting:
emails = db_setting.value
else:
emails = settings.SECURITY_INSECURE_COMMAND_EMAIL_RECEIVER
emails = emails.split(',')
emails = [email.strip().strip('"') for email in emails]
users = User.objects.filter(email__in=emails)
if users:
subscription.users.add(*users)
subscription.receive_backends = [BACKEND.EMAIL]
subscription.save()
class CommandWarningMessage(CommandAlertMixin, UserMessage):
message_type_label = _('Command warning')
def __init__(self, user, command):
super().__init__(user)
self.command = command
def get_html_msg(self) -> dict:
command = self.command
command_input = command['input']
user = command['user']
asset = command['asset']
account = command.get('_account', '')
cmd_acl = command.get('_cmd_filter_acl')
cmd_group = command.get('_cmd_group')
session_id = command.get('session', '')
risk_level = command['risk_level']
org_id = command['org_id']
org_name = command.get('_org_name') or org_id
if session_id:
session_url = reverse(
'api-terminal:session-detail', kwargs={'pk': session_id},
external=True, api_to_ui=True
) + '?oid={}'.format(org_id)
session_url = session_url.replace('/terminal/sessions/', '/audit/sessions/sessions/')
else:
session_url = ''
# Command ACL
cmd_acl_name = cmd_group_name = ''
if cmd_acl:
cmd_acl_name = cmd_acl.name
if cmd_group:
cmd_group_name = cmd_group.name
context = {
'command': command_input,
'user': user,
'asset': asset,
'account': account,
'cmd_filter_acl': cmd_acl_name,
'cmd_group': cmd_group_name,
'session_url': session_url,
'risk_level': RiskLevelChoices.get_label(risk_level),
'org': org_name,
}
message = render_to_string('terminal/_msg_command_warning.html', context)
return {
'subject': self.subject,
'message': message
}
class CommandAlertMessage(CommandAlertMixin, SystemMessage):
category = CATEGORY
category_label = CATEGORY_LABEL
message_type_label = _('Command reject')
def __init__(self, command):
self.command = command
@classmethod
def gen_test_msg(cls):
command = Command.objects.first()
if not command:
command = Command(user='test', asset='test', input='test', session='111111111')
else:
command['session'] = Session.objects.first().id
return cls(command)
def get_html_msg(self) -> dict:
command = self.command
session_detail_url = reverse(
'api-terminal:session-detail', kwargs={'pk': command['session']},
external=True, api_to_ui=True
) + '?oid={}'.format(self.command['org_id'])
session_detail_url = session_detail_url.replace(
'/terminal/sessions/', '/audit/sessions/sessions/'
)
level = RiskLevelChoices.get_label(command['risk_level'])
items = {
_("Asset"): command['asset'],
_("User"): command['user'],
_("Level"): level,
_("Date"): local_now_display(),
}
context = {
'items': items,
'session_url': session_detail_url,
"command": command['input'],
}
message = render_to_string('terminal/_msg_command_alert.html', context)
return {
'subject': self.subject,
'message': message
}
class CommandExecutionAlert(CommandAlertMixin, SystemMessage):
category = 'Workbench'
category_label = _('Job')
message_type_label = _('Command reject')
def __init__(self, command):
self.command = command
@classmethod
def gen_test_msg(cls):
from assets.models import Asset
from users.models import User
cmd = {
'input': 'ifconfig eth0',
'assets': Asset.objects.all()[:10],
'user': str(User.objects.first()),
'risk_level': 5,
}
return cls(cmd)
def get_html_msg(self) -> dict:
command = self.command
assets_with_url = []
for asset in command['assets']:
url = reverse(
'assets:asset-detail', kwargs={'pk': asset.id},
api_to_ui=True, external=True, is_console=True
) + '?oid={}'.format(asset.org_id)
assets_with_url.append([asset, url])
level = RiskLevelChoices.get_label(command['risk_level'])
items = {
_("User"): command['user'],
_("Level"): level,
_("Date"): local_now_display(),
}
context = {
'items': items,
'assets_with_url': assets_with_url,
'command': command['input'],
}
message = render_to_string('terminal/_msg_command_execute_alert.html', context)
return {
'subject': self.subject,
'message': message
}
class StorageConnectivityMessage(SystemMessage):
category = 'storage'
category_label = _('Command and replay storage')
message_type_label = _('Connectivity')
def __init__(self, errors):
self.errors = errors
@classmethod
def post_insert_to_db(cls, subscription: SystemMsgSubscription):
subscription.receive_backends = [b for b in BACKEND if b.is_enable]
subscription.save()
@classmethod
def gen_test_msg(cls):
from terminal.models import ReplayStorage
replay = ReplayStorage.objects.first()
errors = [{
'msg': str(_("Test failure: Account invalid")),
'type': replay.get_type_display(),
'name': replay.name
}]
return cls(errors)
def get_html_msg(self) -> dict:
context = {
'items': self.errors,
}
subject = str(_("Invalid storage"))
message = render_to_string(
'terminal/_msg_check_command_replay_storage_connectivity.html', context
)
return {
'subject': subject,
'message': message
}
class SessionSharingMessage(UserMessage):
message_type_label = _('Session sharing')
def __init__(self, user, instance):
super().__init__(user)
self.instance = instance
def get_html_msg(self) -> dict:
instance = self.instance
context = {
'asset': instance.session.asset,
'created_by': instance.created_by,
'account': instance.session.account,
'url': instance.url,
'verify_code': instance.verify_code,
'org': instance.org_name,
}
message = render_to_string('terminal/_msg_session_sharing.html', context)
return {
'subject': self.message_type_label + ' ' + self.instance.created_by,
'message': message
}