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from django import forms
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from django.contrib.auth import get_user_model, password_validation
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from django.contrib.auth.forms import AuthenticationForm, UserCreationForm
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from django.core.exceptions import ValidationError
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from django.forms import widgets
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from django.utils.translation import gettext_lazy as _
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from . import utils
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from .models import BlogUser
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class LoginForm(AuthenticationForm):
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"""
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用户登录表单
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继承Django的AuthenticationForm，添加Bootstrap样式支持
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"""
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def __init__(self, *args, **kwargs):
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super(LoginForm, self).__init__(*args, **kwargs)
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#ZXY: 自定义表单字段的widget，添加placeholder和CSS类
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self.fields['username'].widget = widgets.TextInput(
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attrs={'placeholder': "username", "class": "form-control"})
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self.fields['password'].widget = widgets.PasswordInput(
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attrs={'placeholder': "password", "class": "form-control"})
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class RegisterForm(UserCreationForm):
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"""
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用户注册表单
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扩展Django的UserCreationForm，添加邮箱字段和样式支持
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"""
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def __init__(self, *args, **kwargs):
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super(RegisterForm, self).__init__(*args, **kwargs)
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#ZXY: 为所有字段添加Bootstrap样式和占位符文本
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self.fields['username'].widget = widgets.TextInput(
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attrs={'placeholder': "username", "class": "form-control"})
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self.fields['email'].widget = widgets.EmailInput(
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attrs={'placeholder': "email", "class": "form-control"})
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self.fields['password1'].widget = widgets.PasswordInput(
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attrs={'placeholder': "password", "class": "form-control"})
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self.fields['password2'].widget = widgets.PasswordInput(
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attrs={'placeholder': "repeat password", "class": "form-control"})
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def clean_email(self):
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"""
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邮箱验证方法
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确保注册的邮箱地址在系统中是唯一的
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"""
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email = self.cleaned_data['email']
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if get_user_model().objects.filter(email=email).exists():
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raise ValidationError(_("email already exists"))
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return email
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class Meta:
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model = get_user_model() #ZXY: 使用项目中自定义的用户模型
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fields = ("username", "email") #ZXY: 表单包含的字段
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class ForgetPasswordForm(forms.Form):
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"""
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忘记密码重置表单
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包含新密码设置、邮箱验证和验证码确认
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"""
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#ZXY: 新密码字段 - 使用Django的密码输入组件
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new_password1 = forms.CharField(
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label=_("New password"),
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widget=forms.PasswordInput(
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attrs={
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"class": "form-control",
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'placeholder': _("New password")
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}
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),
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)
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#ZXY: 确认密码字段 - 标签没有国际化，需要改进
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new_password2 = forms.CharField(
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label="确认密码",
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widget=forms.PasswordInput(
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attrs={
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"class": "form-control",
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'placeholder': _("Confirm password")
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}
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),
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)
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#ZXY: 邮箱字段 - 用于识别用户和发送验证码
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email = forms.EmailField(
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label='邮箱',
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widget=forms.TextInput(
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attrs={
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'class': 'form-control',
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'placeholder': _("Email")
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}
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),
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)
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#ZXY: 验证码字段 - 用于安全验证
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code = forms.CharField(
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label=_('Code'),
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widget=forms.TextInput(
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attrs={
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'class': 'form-control',
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'placeholder': _("Code")
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}
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),
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)
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def clean_new_password2(self):
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"""
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验证两次输入的新密码是否一致
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并使用Django的密码验证器检查密码强度
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"""
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password1 = self.data.get("new_password1")
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password2 = self.data.get("new_password2")
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if password1 and password2 and password1 != password2:
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raise ValidationError(_("passwords do not match"))
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password_validation.validate_password(password2) #ZXY: Django密码强度验证
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return password2
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def clean_email(self):
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"""
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验证邮箱是否存在系统中
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"""
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user_email = self.cleaned_data.get("email")
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if not BlogUser.objects.filter(
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email=user_email
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).exists():
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# todo 这里的报错提示可以判断一个邮箱是不是注册过，如果不想暴露可以修改
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raise ValidationError(_("email does not exist"))
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return user_email
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def clean_code(self):
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"""
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验证邮箱验证码是否正确
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调用utils模块的验证功能
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"""
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code = self.cleaned_data.get("code")
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error = utils.verify(
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email=self.cleaned_data.get("email"),
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code=code,
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)
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if error:
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raise ValidationError(error)
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return code
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class ForgetPasswordCodeForm(forms.Form):
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"""
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获取忘记密码验证码的表单
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简单的邮箱输入表单，用于请求发送验证码邮件
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"""
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email = forms.EmailField(
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label=_('Email'),
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)
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