django rest framework 自定义用户以及自定义认证方式

摘要：自定义一个用户很简单然后是最后是这样一个自定义的用户模型就弄好了，接下来是自定义登录字段

自定义一个用户很简单models.py

</>复制代码 
from django.db import models
from django.contrib.auth.models import (
    BaseUserManager, AbstractBaseUser
)
class MyUserManager(BaseUserManager):
    def create_user(self, email, date_of_birth, password=None):
        """
        Creates and saves a User with the given email, date of
        birth and password.
        """
        if not email:
            raise ValueError("Users must have an email address")
        user = self.model(
            email=self.normalize_email(email),
            date_of_birth=date_of_birth,
        )
        user.set_password(password)
        user.save(using=self._db)
        return user
    def create_superuser(self, email, date_of_birth, password):
        """
        Creates and saves a superuser with the given email, date of
        birth and password.
        """
        user = self.create_user(
            email,
            password=password,
            date_of_birth=date_of_birth,
        )
        user.is_admin = True
        user.save(using=self._db)
        return user
               
class MyUser(AbstractBaseUser):
    email = models.EmailField(
        verbose_name="email address",
        max_length=255,
        unique=True,
    )
    date_of_birth = models.DateField()
    is_active = models.BooleanField(default=True)
    is_admin = models.BooleanField(default=False)
    objects = MyUserManager()
    USERNAME_FIELD = "email"
    REQUIRED_FIELDS = ["date_of_birth"]
    def get_full_name(self):
        # The user is identified by their email address
        return self.email
    def get_short_name(self):
        # The user is identified by their email address
        return self.email
    def __str__(self):              # __unicode__ on Python 2
        return self.email
    def has_perm(self, perm, obj=None):
        "Does the user have a specific permission?"
        # Simplest possible answer: Yes, always
        return True
    def has_module_perms(self, app_label):
        "Does the user have permissions to view the app `app_label`?"
        # Simplest possible answer: Yes, always
        return True
    @property
    def is_staff(self):
        "Is the user a member of staff?"
        # Simplest possible answer: All admins are staff
        return self.is_admin

然后是admin.py

</>复制代码 
class UserAdmin(BaseUserAdmin):
    # The forms to add and change user instances
    form = UserChangeForm
    add_form = UserCreationForm
    # The fields to be used in displaying the User model.
    # These override the definitions on the base UserAdmin
    # that reference specific fields on auth.User.
    list_display = ("email", "date_of_birth", "is_admin")
    list_filter = ("is_admin",)
    fieldsets = (
        (None, {"fields": ("email", "password")}),
        ("Personal info", {"fields": ("date_of_birth",)}),
        ("Permissions", {"fields": ("is_admin",)}),
    )
    # add_fieldsets is not a standard ModelAdmin attribute. UserAdmin
    # overrides get_fieldsets to use this attribute when creating a user.
    add_fieldsets = (
        (None, {
            "classes": ("wide",),
            "fields": ("email", "date_of_birth", "password1", "password2")}
        ),
    )
    search_fields = ("email",)
    ordering = ("email",)
    filter_horizontal = ()
# Now register the new UserAdmin...
admin.site.register(MyUser, UserAdmin)
# ... and, since we"re not using Django"s built-in permissions,
# unregister the Group model from admin.
admin.site.unregister(Group)

最后是settings.py

</>复制代码 
AUTH_USER_MODEL = "customauth.MyUser"
AUTHENTICATION_BACKENDS = (
    "accounts.backends.LoginBackend",
)

这样一个自定义的用户模型就弄好了，接下来是自定义登录字段

</>复制代码 
class LoginBackend(object):
    def authenticate(self, username=None, password=None):
        if username:
            #email
            if re.match("^.+@([?)[a-zA-Z0-9-.]+.([a-zA-Z]{2,3}|[0-9]{1,3})(]?)$", username) != None:
                try:
                    user = User.objects.get(email=username)
                    if user.check_password(password):
                        return user
                except User.DoesNotExist:
                    return None
            #mobile
            elif len(username)==11 and re.match("^(1[3458]d{9})$", username) != None:
                try:
                    user = User.objects.get(mobile=username)
                    if user.check_password(password):
                        return user
                except User.DoesNotExist:
                    return None  
            #nick
            else:
                try:
                    user = User.objects.get(username=username)
                    if user.check_password(password):
                        return user
                except User.DoesNotExist:
                    return None                
        else:
            return None
    def get_user(self, user_id):
        try:
            return User.objects.get(pk=user_id)
        except User.DoesNotExist:
            return None