112 lines
No EOL
4.2 KiB
Python
112 lines
No EOL
4.2 KiB
Python
import requests
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from django.conf import settings
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from django.contrib.auth.base_user import BaseUserManager
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from django.contrib.auth.models import AbstractUser
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from django.contrib.auth.validators import UnicodeUsernameValidator
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from django.db import models
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from django.utils import timezone
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from django.utils.translation import gettext_lazy as _
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import uuid
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import random
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import string
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import base64
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import hashlib
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class UserManager(BaseUserManager):
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use_in_migrations = True
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def _create_user(self, pk, **extra_fields):
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user = self.model(pk=pk **extra_fields)
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user.date_joined = timezone.now()
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user.save(using=self._db)
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return user
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def create_user(self, pk, **extra_fields):
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extra_fields.setdefault('is_staff', False)
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extra_fields.setdefault('is_superuser', False)
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return self._create_user(pk=pk, **extra_fields)
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def create_superuser(self, username, email, password, **extra_fields):
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if not username:
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raise ValueError('The given username must be set')
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extra_fields.setdefault('is_staff', True)
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extra_fields.setdefault('is_superuser', True)
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if extra_fields.get('is_staff') is not True:
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raise ValueError('Superuser must have is_staff=True.')
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if extra_fields.get('is_superuser') is not True:
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raise ValueError('Superuser must have is_superuser=True.')
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return self._create_user(username=username, email=email, password=password, **extra_fields)
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class User(AbstractUser):
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uuid = models.UUIDField(primary_key=True, editable=False, default=uuid.uuid4, unique=True, db_index=True)
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password = models.CharField(_('password'), max_length=128)
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username_validator = UnicodeUsernameValidator()
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username = models.CharField(
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_('username'),
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max_length=150,
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unique=True,
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help_text=_('Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.'),
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validators=[username_validator],
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error_messages={
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'unique': _("A user with that username already exists."),
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},
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blank=True,
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null=True
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)
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last_update = models.DateTimeField(_('last update'), max_length=30, blank=True, null=True, auto_now=True)
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last_login = models.DateTimeField(_('last login'), blank=True, null=True)
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date_joined = models.DateTimeField(_('date joined'), default=timezone.now)
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objects = UserManager()
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def __str__(self):
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return str(self.username or self.pk)
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# TODO: user redis instead.
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# TODO: create a queryset
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class OAuthCode(models.Model):
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uuid = models.UUIDField(primary_key=True, editable=False, default=uuid.uuid4, unique=True, db_index=True)
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code_verifier = models.CharField(max_length=130, blank=True, null=True)
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code = models.CharField(max_length=64, blank=True, null=True)
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def generate_code_verifier(self):
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code_verifier = ''.join(
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random.choice(string.ascii_uppercase + string.digits) for _ in range(random.randint(43, 128)))
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self.code_verifier = code_verifier
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self.save()
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return code_verifier
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def generate_code_challenge(self):
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code_challenge = hashlib.sha256(self.code_verifier.encode('utf-8')).digest()
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code_challenge = base64.urlsafe_b64encode(code_challenge).decode('utf-8').replace('=', '')
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return code_challenge
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def generate_login_url(self):
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url = f'''{settings.BASE_OAUTH2_PROVIDER_URL}/oauth2/authorize/?response_type=code&code_challenge={self.generate_code_challenge()}&code_challenge_method=S256&client_id={settings.CLIENT_ID}&scope={settings.SCOPES}&state={self.uuid}'''
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return url
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def validate_code(self):
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headers = {
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"Content-Type": "application/x-www-form-urlencoded",
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}
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data = {
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"client_id": settings.CLIENT_ID,
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"client_secret": settings.CLIENT_SECRET,
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"code": self.code,
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"code_verifier": self.code_verifier,
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# "redirect_uri=http://127.0.0.1:8000/noexist/callback",
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"grant_type": "authorization_code"
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}
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response = requests.post(f'{settings.BASE_OAUTH2_PROVIDER_URL}/oauth2/token/', data=data, headers=headers)
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return response.json() |