使用django.contrib.auth.views.password_change强制实施密码强度要求

问题描述

我们有一个需要特定级别的密码复杂度的Django应用程序。我们目前通过客户端JavaScript执行此操作，可以轻易地被有针对性的人击败。

我似乎找不到有关设置服务器端的任何具体信息密码强度验证使用django contrib内置视图。在我重新开发轮子之前，有没有正确的方法来处理这个要求？

解决方案

我也去了为此定制表单。在 urls.py 中指定您的自定义表单：

 （r'^ change_password / $'，'django.contrib.auth.views.password_change'，
 {'password_change_form'：ValidatingPasswordChangeForm}），
  

继承自 PasswordChangeForm 并实施验证：

  from django import form 
 from django.contrib import auth 
 
 class ValidatingPasswordChangeForm（auth.forms.PasswordChangeForm）：
 MIN_LENGTH = 8 
 
 def clean_new_password1（self）：
 password1 = self.cleaned_data.get（'new_password1'）
 
＃至少MIN_LENGTH long 
 if len（password1）< self.MIN_LENGTH：
 raise forms.ValidationError（新密码必须至少为％d个字符长。％self.MIN_LENGTH）
 
＃至少一个字母和一个非字母
 first_isalpha = password1 [0] .isalpha（）
如果全部（c.isalpha（）== first_isalpha for c in password1）：
 raise forms.ValidationError（新密码必须包含至少一个字母和至少一个数字或\ 
标点符号。）
 
＃...您想要的任何其他验证... 
 
返回password1 
  

We have a Django application that requires a specific level of password complexity. We currently enforce this via client-side JavaScript which can easily be defeated by someone who is appropriately motivated.

I cannot seem to find any specific information about setting up server-side password strength validation using the django contrib built in views. Before I go about re-inventing the wheel, is there a proper way to handle this requirement?

解决方案

I also went with a custom form for this. In urls.py specify your custom form:

(r'^change_password/$', 'django.contrib.auth.views.password_change',
     {'password_change_form': ValidatingPasswordChangeForm}),

Inherit from PasswordChangeForm and implement validation:

from django import forms
from django.contrib import auth

class ValidatingPasswordChangeForm(auth.forms.PasswordChangeForm):
    MIN_LENGTH = 8

    def clean_new_password1(self):
        password1 = self.cleaned_data.get('new_password1')

        # At least MIN_LENGTH long
        if len(password1) < self.MIN_LENGTH:
            raise forms.ValidationError("The new password must be at least %d characters long." % self.MIN_LENGTH)

        # At least one letter and one non-letter
        first_isalpha = password1[0].isalpha()
        if all(c.isalpha() == first_isalpha for c in password1):
            raise forms.ValidationError("The new password must contain at least one letter and at least one digit or" \
                                        " punctuation character.")

        # ... any other validation you want ...

        return password1

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