2022-12-05 08:07:14 +00:00
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from django.core.validators import MinValueValidator, MaxValueValidator
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2022-04-12 09:45:10 +00:00
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from django.db import models
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from django.utils.translation import ugettext_lazy as _
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2022-10-22 03:17:02 +00:00
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2022-12-05 08:07:14 +00:00
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from assets.models import Asset
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2022-05-07 08:20:12 +00:00
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from common.db.fields import PortField
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2022-12-05 08:07:14 +00:00
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from common.db.models import JMSBaseModel
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2022-04-12 09:45:10 +00:00
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from common.utils.ip import contains_ip
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2022-09-22 10:47:16 +00:00
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2022-04-12 09:45:10 +00:00
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2022-07-17 06:28:55 +00:00
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class Endpoint(JMSBaseModel):
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2022-04-12 09:45:10 +00:00
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name = models.CharField(max_length=128, verbose_name=_('Name'), unique=True)
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host = models.CharField(max_length=256, blank=True, verbose_name=_('Host'))
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2022-09-22 07:52:47 +00:00
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# value=0 表示 disabled
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2023-01-16 11:02:09 +00:00
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https_port = PortField(default=443, verbose_name=_('HTTPS port'))
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http_port = PortField(default=80, verbose_name=_('HTTP port'))
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ssh_port = PortField(default=2222, verbose_name=_('SSH port'))
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rdp_port = PortField(default=3389, verbose_name=_('RDP port'))
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mysql_port = PortField(default=33061, verbose_name=_('MySQL port'))
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mariadb_port = PortField(default=33062, verbose_name=_('MariaDB port'))
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postgresql_port = PortField(default=54320, verbose_name=_('PostgreSQL port'))
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redis_port = PortField(default=63790, verbose_name=_('Redis port'))
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2022-09-21 12:56:40 +00:00
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2022-04-12 09:45:10 +00:00
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comment = models.TextField(default='', blank=True, verbose_name=_('Comment'))
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default_id = '00000000-0000-0000-0000-000000000001'
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class Meta:
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verbose_name = _('Endpoint')
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ordering = ('name',)
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def __str__(self):
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return self.name
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2022-09-22 07:52:47 +00:00
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def get_port(self, target_instance, protocol):
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2022-12-05 08:07:14 +00:00
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from terminal.utils import db_port_manager
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2023-01-16 11:02:09 +00:00
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from assets.const import DatabaseTypes
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if isinstance(target_instance, Asset) and \
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target_instance.is_type(DatabaseTypes.ORACLE):
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2022-09-22 07:52:47 +00:00
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port = db_port_manager.get_port_by_db(target_instance)
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else:
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2023-01-16 11:02:09 +00:00
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port = getattr(self, f'{protocol}_port', 0)
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2022-09-22 07:52:47 +00:00
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return port
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2022-07-13 08:29:05 +00:00
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2022-04-19 11:44:07 +00:00
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def is_default(self):
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2022-06-28 12:12:55 +00:00
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return str(self.id) == self.default_id
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2022-04-19 11:44:07 +00:00
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2022-04-12 09:45:10 +00:00
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def delete(self, using=None, keep_parents=False):
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2022-04-19 11:44:07 +00:00
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if self.is_default():
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2022-04-12 09:45:10 +00:00
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return
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return super().delete(using, keep_parents)
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2022-09-22 07:52:47 +00:00
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def is_valid_for(self, target_instance, protocol):
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2022-06-28 12:12:55 +00:00
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if self.is_default():
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return True
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2022-09-22 07:52:47 +00:00
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if self.host and self.get_port(target_instance, protocol) != 0:
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2022-06-28 12:12:55 +00:00
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return True
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return False
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2022-04-12 09:45:10 +00:00
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@classmethod
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def get_or_create_default(cls, request=None):
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data = {
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'id': cls.default_id,
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'name': 'Default',
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'host': '',
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'https_port': 0,
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'http_port': 0,
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}
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endpoint, created = cls.objects.get_or_create(id=cls.default_id, defaults=data)
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return endpoint
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2022-06-28 12:12:55 +00:00
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@classmethod
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def match_by_instance_label(cls, instance, protocol):
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from assets.models import Asset
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from terminal.models import Session
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if isinstance(instance, Session):
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2023-02-08 06:12:52 +00:00
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instance = instance.get_asset()
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2022-06-28 12:12:55 +00:00
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if not isinstance(instance, Asset):
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return None
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values = instance.labels.filter(name='endpoint').values_list('value', flat=True)
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if not values:
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return None
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endpoints = cls.objects.filter(name__in=values).order_by('-date_updated')
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for endpoint in endpoints:
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if endpoint.is_valid_for(protocol):
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return endpoint
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2022-04-12 09:45:10 +00:00
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2022-07-17 06:28:55 +00:00
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class EndpointRule(JMSBaseModel):
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2022-04-12 09:45:10 +00:00
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name = models.CharField(max_length=128, verbose_name=_('Name'), unique=True)
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ip_group = models.JSONField(default=list, verbose_name=_('IP group'))
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priority = models.IntegerField(
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verbose_name=_("Priority"), validators=[MinValueValidator(1), MaxValueValidator(100)],
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unique=True, help_text=_("1-100, the lower the value will be match first"),
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)
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endpoint = models.ForeignKey(
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'terminal.Endpoint', null=True, blank=True, related_name='rules',
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on_delete=models.SET_NULL, verbose_name=_("Endpoint"),
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)
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comment = models.TextField(default='', blank=True, verbose_name=_('Comment'))
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class Meta:
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verbose_name = _('Endpoint rule')
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ordering = ('priority', 'name')
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def __str__(self):
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return f'{self.name}({self.priority})'
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@classmethod
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2022-09-22 07:52:47 +00:00
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def match(cls, target_instance, target_ip, protocol):
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for endpoint_rule in cls.objects.all().prefetch_related('endpoint'):
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if not contains_ip(target_ip, endpoint_rule.ip_group):
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continue
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if not endpoint_rule.endpoint:
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continue
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2022-09-22 07:52:47 +00:00
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if not endpoint_rule.endpoint.is_valid_for(target_instance, protocol):
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2022-04-12 09:45:10 +00:00
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continue
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return endpoint_rule
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@classmethod
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2022-09-22 07:52:47 +00:00
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def match_endpoint(cls, target_instance, target_ip, protocol, request=None):
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endpoint_rule = cls.match(target_instance, target_ip, protocol)
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2022-04-12 09:45:10 +00:00
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if endpoint_rule:
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endpoint = endpoint_rule.endpoint
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else:
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endpoint = Endpoint.get_or_create_default(request)
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2022-07-19 10:59:25 +00:00
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if not endpoint.host and request:
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# 动态添加 current request host
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endpoint.host = request.get_host().split(':')[0]
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2022-04-12 09:45:10 +00:00
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return endpoint
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