Django 2.0 密码验证

Question

默认情况下，在 Django 2.0 中，我们使用AUTH_PASSWORD_VALIDATORS选项

• UserAttributeSimilarityValidator
• 最小长度验证器
• 通用密码验证器
• 数字密码验证器

那么有没有什么简单的方法可以添加额外的验证器，例如最少 1 个大写字母、1 个符号、1 个数字等？

在 python 中，我可以检查 Using regex

import re
userPass = 'HelloWorld*123'
if re.search('[A-Z]', userPass)!=None and re.search('[0-9]', userPass)!=None and re.search('[^A-Za-z0-9]', userPass)!=None:
    print 'Strong Password'

Answer 1

干得好：

class _ValidatorBase:
    __slots__ = ('message',)
    DEFAULT_MSG = ''

    def __init__(self, message=None):
        self.message = message if message else self.DEFAULT_MSG

    def get_help_text(self):
        return self.message

    def validate(self, *args, **kwargs):
        raise NotImplementedError()


class HasLowerCaseValidator(_ValidatorBase):
    __slots__ = ()
    DEFAULT_MSG = "The password must contain at least one lowercase character."

    def validate(self, password, user=None):
        if re.search('[a-z]', password) is None:
            raise ValidationError(self.message, code='missing_lower_case')


class HasUpperCaseValidator(_ValidatorBase):
    __slots__ = ()
    DEFAULT_MSG = "The password must contain at least one uppercase character."

    def validate(self, password, user=None):
        if re.search('[A-Z]', password) is None:
            raise ValidationError(self.message, code='missing_upper_case')


class HasNumberValidator(_ValidatorBase):
    __slots__ = ()
    DEFAULT_MSG = "The password must contain at least one numeric character."

    def validate(self, password, user=None):
        if re.search('[0-9]', password) is None:
            raise ValidationError(self.message, code='missing_numeric')


class HasSymbolValidator(_ValidatorBase):
    __slots__ = ()
    DEFAULT_MSG = "The password must contain at least one non-alphanumeric character (symbol)."

    def validate(self, password, user=None):
        if re.search('[^A-Za-z0-9]', password) is None:
            raise ValidationError(self.message, code='missing_symbol')