Inspired by Base64Field: base64 encoding field for storing binary data in Django TextFields but in a generic way.
from django.db import models
import base64
class Base64Encryptor(object):
def encrypt(self, value):
return base64.encodestring(value)
def decrypt(self, msg):
return base64.decodestring(msg)
class MyModel(models.Model):
...
b64_data = EncryptedField(encryptor=Base64Encryptor)
...
# Usage
my_obj = MyModel()
my_obj.b64_data = "hello"
print(my_obj.b64_data) # will output 'hello'
print(my_obj.b64_data_enc) # will output 'aGVsbG8=\n'
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | # -*- coding: utf-8 -*-
from __future__ import unicode_literals
from south.modelsinspector import add_introspection_rules
from django.db import models
class BaseEnc(object):
def encrypt(self, value):
return value
def decrypt(self, value):
return value
class EncryptedField(models.TextField):
description = "A encrypted field"
def __init__(self, encryptor=BaseEnc, *args, **kwargs):
self.encryptor = encryptor()
super(EncryptedField, self).__init__(*args, **kwargs)
def contribute_to_class(self, cls, name):
if self.db_column is None:
self.db_column = name
self.field_name = name + '_enc'
super(EncryptedField, self).contribute_to_class(cls, self.field_name)
setattr(cls, name, property(self.get_data, self.set_data))
def get_data(self, obj):
if getattr(obj, self.field_name):
return self.encryptor.decrypt(getattr(obj, self.field_name))
return None
def set_data(self, obj, data):
if data:
setattr(obj, self.field_name, self.encryptor.encrypt(data))
else:
setattr(obj, self.field_name, None)
|
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Comments
hello, do you have another example of how to encode and decode base64 with django?
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