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# 导入Django表单基类
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from django import forms
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# 导入Django用户模型工具及密码验证功能
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from django.contrib.auth import get_user_model, password_validation
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# 导入Django内置的认证表单（登录、用户创建）
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from django.contrib.auth.forms import AuthenticationForm, UserCreationForm
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# 导入Django验证错误类，用于自定义表单验证
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from django.core.exceptions import ValidationError
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# 导入Django表单控件，用于自定义输入框样式
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from django.forms import widgets
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# 导入翻译工具，实现字段名称/提示的国际化
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from django.utils.translation import gettext_lazy as _
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# 导入自定义工具类（可能用于验证码验证等）
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from . import utils
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# 导入自定义用户模型
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from .models import BlogUser
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class LoginForm(AuthenticationForm):
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"""自定义登录表单，继承自Django内置的AuthenticationForm"""
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def __init__(self, *args, **kwargs):
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"""初始化方法，重写父类初始化逻辑以自定义表单控件样式"""
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super(LoginForm, self).__init__(*args, **kwargs)
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# 自定义用户名字段的输入控件：设置占位符和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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# 自定义密码字段的输入控件：使用密码输入框，设置占位符和CSS类
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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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"""自定义注册表单，继承自Django内置的UserCreationForm"""
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def __init__(self, *args, **kwargs):
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"""初始化方法，重写父类初始化逻辑以自定义表单控件样式"""
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super(RegisterForm, self).__init__(*args, **kwargs)
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# 自定义用户名字段控件：文本输入框，设置占位符和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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# 自定义邮箱字段控件：邮箱输入框，设置占位符和CSS类
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self.fields['email'].widget = widgets.EmailInput(
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attrs={'placeholder': "email", "class": "form-control"})
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# 自定义密码1字段控件：密码输入框，设置占位符和CSS类
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self.fields['password1'].widget = widgets.PasswordInput(
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attrs={'placeholder': "password", "class": "form-control"})
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# 自定义密码2字段控件：密码输入框（确认密码），设置占位符和CSS类
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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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"""自定义邮箱验证：检查邮箱是否已被注册"""
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email = self.cleaned_data['email']
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# 如果该邮箱已存在于用户表中，抛出验证错误
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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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# 关联的用户模型（通过get_user_model获取项目配置的用户模型）
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model = get_user_model()
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# 注册表单需填写的字段：用户名和邮箱
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fields = ("username", "email")
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class ForgetPasswordForm(forms.Form):
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"""忘记密码表单，用于用户重置密码（包含密码重置、邮箱验证、验证码验证）"""
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# 新密码字段：标签国际化，使用密码输入框，设置CSS类和占位符
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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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# 确认新密码字段：标签为“确认密码”，使用密码输入框，设置样式
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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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# 邮箱字段：用于验证用户身份，使用文本输入框，设置样式
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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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# 验证码字段：用于验证用户真实性，使用文本输入框，设置样式
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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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"""验证两次输入的新密码是否一致，并验证密码强度"""
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password1 = self.data.get("new_password1") # 获取第一次输入的密码
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password2 = self.data.get("new_password2") # 获取第二次输入的密码
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# 如果两次密码都存在且不一致，抛出验证错误
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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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# 使用Django内置密码验证器验证密码强度（如长度、复杂度等）
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password_validation.validate_password(password2)
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return password2
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def clean_email(self):
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"""验证邮箱是否已注册（存在于用户表中）"""
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user_email = self.cleaned_data.get("email")
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# 如果该邮箱不存在于BlogUser表中，抛出验证错误
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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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# 注意：此处提示可能暴露邮箱是否注册，可根据需求修改
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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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"""验证验证码是否有效（调用自定义工具类的verify方法）"""
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code = self.cleaned_data.get("code")
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# 调用utils.verify验证邮箱和验证码是否匹配，返回错误信息（若有）
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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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# 如果验证失败（有错误信息），抛出验证错误
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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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"""获取忘记密码验证码的表单，用于提交邮箱以发送验证码"""
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# 邮箱字段：用于指定需要发送验证码的邮箱，标签国际化
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email = forms.EmailField(
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label=_('Email'),
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) |
