mirror of https://github.com/jumpserver/jumpserver
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
153 lines
3.8 KiB
153 lines
3.8 KiB
# -*- coding: utf-8 -*-
|
|
#
|
|
import json
|
|
from django.db import models
|
|
from django.utils.translation import ugettext_lazy as _
|
|
|
|
from ..utils import get_signer
|
|
|
|
|
|
__all__ = [
|
|
'JsonMixin', 'JsonDictMixin', 'JsonListMixin', 'JsonTypeMixin',
|
|
'JsonCharField', 'JsonTextField', 'JsonListCharField', 'JsonListTextField',
|
|
'JsonDictCharField', 'JsonDictTextField', 'EncryptCharField',
|
|
'EncryptTextField', 'EncryptMixin', 'EncryptJsonDictTextField',
|
|
]
|
|
signer = get_signer()
|
|
|
|
|
|
class JsonMixin:
|
|
tp = None
|
|
|
|
@staticmethod
|
|
def json_decode(data):
|
|
try:
|
|
return json.loads(data)
|
|
except (TypeError, json.JSONDecodeError):
|
|
return None
|
|
|
|
@staticmethod
|
|
def json_encode(data):
|
|
return json.dumps(data)
|
|
|
|
def from_db_value(self, value, expression, connection, context):
|
|
if value is None:
|
|
return value
|
|
return self.json_decode(value)
|
|
|
|
def to_python(self, value):
|
|
if value is None:
|
|
return value
|
|
|
|
if not isinstance(value, str) or not value.startswith('"'):
|
|
return value
|
|
else:
|
|
return self.json_decode(value)
|
|
|
|
def get_prep_value(self, value):
|
|
if value is None:
|
|
return value
|
|
return self.json_encode(value)
|
|
|
|
|
|
class JsonTypeMixin(JsonMixin):
|
|
tp = dict
|
|
|
|
def from_db_value(self, value, expression, connection, context):
|
|
value = super().from_db_value(value, expression, connection, context)
|
|
if not isinstance(value, self.tp):
|
|
value = self.tp()
|
|
return value
|
|
|
|
def to_python(self, value):
|
|
data = super().to_python(value)
|
|
if not isinstance(data, self.tp):
|
|
data = self.tp()
|
|
return data
|
|
|
|
def get_prep_value(self, value):
|
|
if not isinstance(value, self.tp):
|
|
value = self.tp()
|
|
return self.json_encode(value)
|
|
|
|
|
|
class JsonDictMixin(JsonTypeMixin):
|
|
tp = dict
|
|
|
|
|
|
class JsonDictCharField(JsonDictMixin, models.CharField):
|
|
description = _("Marshal dict data to char field")
|
|
|
|
|
|
class JsonDictTextField(JsonDictMixin, models.TextField):
|
|
description = _("Marshal dict data to text field")
|
|
|
|
|
|
class JsonListMixin(JsonTypeMixin):
|
|
tp = list
|
|
|
|
|
|
class JsonStrListMixin(JsonListMixin):
|
|
pass
|
|
|
|
|
|
class JsonListCharField(JsonListMixin, models.CharField):
|
|
description = _("Marshal list data to char field")
|
|
|
|
|
|
class JsonListTextField(JsonListMixin, models.TextField):
|
|
description = _("Marshal list data to text field")
|
|
|
|
|
|
class JsonCharField(JsonMixin, models.CharField):
|
|
description = _("Marshal data to char field")
|
|
|
|
|
|
class JsonTextField(JsonMixin, models.TextField):
|
|
description = _("Marshal data to text field")
|
|
|
|
|
|
class EncryptMixin:
|
|
def from_db_value(self, value, expression, connection, context):
|
|
if value is not None:
|
|
return signer.unsign(value)
|
|
return None
|
|
|
|
def get_prep_value(self, value):
|
|
if value is None:
|
|
return value
|
|
return signer.sign(value)
|
|
|
|
|
|
class EncryptTextField(EncryptMixin, models.TextField):
|
|
description = _("Encrypt field using Secret Key")
|
|
|
|
|
|
class EncryptCharField(EncryptMixin, models.CharField):
|
|
@staticmethod
|
|
def change_max_length(kwargs):
|
|
kwargs.setdefault('max_length', 1024)
|
|
max_length = kwargs.get('max_length')
|
|
if max_length < 129:
|
|
max_length = 128
|
|
max_length = max_length * 2
|
|
kwargs['max_length'] = max_length
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
self.change_max_length(kwargs)
|
|
super().__init__(*args, **kwargs)
|
|
|
|
def deconstruct(self):
|
|
name, path, args, kwargs = super().deconstruct()
|
|
max_length = kwargs.pop('max_length')
|
|
if max_length > 255:
|
|
max_length = max_length // 2
|
|
kwargs['max_length'] = max_length
|
|
return name, path, args, kwargs
|
|
|
|
|
|
class EncryptJsonDictTextField(EncryptMixin, JsonDictTextField):
|
|
pass
|
|
|
|
|