moviewyrm/bookwyrm/models/site.py

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""" the particulars for this instance of BookWyrm """
import base64
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import datetime
from Crypto import Random
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from django.db import models, IntegrityError
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from django.utils import timezone
from bookwyrm.settings import DOMAIN
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from .base_model import BookWyrmModel
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from .user import User
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class SiteSettings(models.Model):
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""" customized settings for this instance """
name = models.CharField(default="BookWyrm", max_length=100)
instance_tagline = models.CharField(
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max_length=150, default="Social Reading and Reviewing"
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)
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instance_description = models.TextField(default="This instance has no description.")
registration_closed_text = models.TextField(
default="Contact an administrator to get an invite"
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)
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code_of_conduct = models.TextField(default="Add a code of conduct here.")
privacy_policy = models.TextField(default="Add a privacy policy here.")
allow_registration = models.BooleanField(default=True)
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allow_invite_requests = models.BooleanField(default=True)
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logo = models.ImageField(upload_to="logos/", null=True, blank=True)
logo_small = models.ImageField(upload_to="logos/", null=True, blank=True)
favicon = models.ImageField(upload_to="logos/", null=True, blank=True)
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support_link = models.CharField(max_length=255, null=True, blank=True)
support_title = models.CharField(max_length=100, null=True, blank=True)
admin_email = models.EmailField(max_length=255, null=True, blank=True)
@classmethod
def get(cls):
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""" gets the site settings db entry or defaults """
try:
return cls.objects.get(id=1)
except cls.DoesNotExist:
default_settings = SiteSettings(id=1)
default_settings.save()
return default_settings
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def new_access_code():
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""" the identifier for a user invite """
return base64.b32encode(Random.get_random_bytes(5)).decode("ascii")
class SiteInvite(models.Model):
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""" gives someone access to create an account on the instance """
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created_date = models.DateTimeField(auto_now_add=True)
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code = models.CharField(max_length=32, default=new_access_code)
expiry = models.DateTimeField(blank=True, null=True)
use_limit = models.IntegerField(blank=True, null=True)
times_used = models.IntegerField(default=0)
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user = models.ForeignKey(User, on_delete=models.CASCADE)
def valid(self):
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""" make sure it hasn't expired or been used """
return (self.expiry is None or self.expiry > timezone.now()) and (
self.use_limit is None or self.times_used < self.use_limit
)
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@property
def link(self):
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""" formats the invite link """
return "https://{}/invite/{}".format(DOMAIN, self.code)
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class InviteRequest(BookWyrmModel):
""" prospective users can request an invite """
email = models.EmailField(max_length=255, unique=True)
invite = models.ForeignKey(
SiteInvite, on_delete=models.SET_NULL, null=True, blank=True
)
invite_sent = models.BooleanField(default=False)
ignored = models.BooleanField(default=False)
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def save(self, *args, **kwargs):
""" don't create a request for a registered email """
if User.objects.filter(email=self.email).exists():
raise IntegrityError()
super().save(*args, **kwargs)
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def get_passowrd_reset_expiry():
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""" give people a limited time to use the link """
now = timezone.now()
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return now + datetime.timedelta(days=1)
class PasswordReset(models.Model):
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""" gives someone access to create an account on the instance """
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code = models.CharField(max_length=32, default=new_access_code)
expiry = models.DateTimeField(default=get_passowrd_reset_expiry)
user = models.OneToOneField(User, on_delete=models.CASCADE)
def valid(self):
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""" make sure it hasn't expired or been used """
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return self.expiry > timezone.now()
@property
def link(self):
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""" formats the invite link """
return "https://{}/password-reset/{}".format(DOMAIN, self.code)