mirror of
https://github.com/bookwyrm-social/bookwyrm.git
synced 2024-05-19 00:38:21 +00:00
142 lines
4.9 KiB
Python
142 lines
4.9 KiB
Python
""" the particulars for this instance of BookWyrm """
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import base64
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import datetime
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from Crypto import Random
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from django.db import models, IntegrityError
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from django.dispatch import receiver
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from django.utils import timezone
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from model_utils import FieldTracker
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from bookwyrm.preview_images import generate_site_preview_image_task
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from bookwyrm.settings import DOMAIN, ENABLE_PREVIEW_IMAGES
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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"""
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name = models.CharField(default="BookWyrm", max_length=100)
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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.")
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# about page
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registration_closed_text = models.TextField(
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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.")
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privacy_policy = models.TextField(default="Add a privacy policy here.")
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# registration
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allow_registration = models.BooleanField(default=True)
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allow_invite_requests = models.BooleanField(default=True)
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# images
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logo = models.ImageField(upload_to="logos/", null=True, blank=True)
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logo_small = models.ImageField(upload_to="logos/", null=True, blank=True)
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favicon = models.ImageField(upload_to="logos/", null=True, blank=True)
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preview_image = models.ImageField(
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upload_to="previews/logos/", null=True, blank=True
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)
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# footer
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support_link = models.CharField(max_length=255, null=True, blank=True)
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support_title = models.CharField(max_length=100, null=True, blank=True)
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admin_email = models.EmailField(max_length=255, null=True, blank=True)
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footer_item = models.TextField(null=True, blank=True)
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field_tracker = FieldTracker(fields=["name", "instance_tagline", "logo"])
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@classmethod
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def get(cls):
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"""gets the site settings db entry or defaults"""
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try:
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return cls.objects.get(id=1)
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except cls.DoesNotExist:
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default_settings = SiteSettings(id=1)
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default_settings.save()
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return default_settings
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def new_access_code():
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"""the identifier for a user invite"""
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return base64.b32encode(Random.get_random_bytes(5)).decode("ascii")
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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)
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expiry = models.DateTimeField(blank=True, null=True)
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use_limit = models.IntegerField(blank=True, null=True)
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times_used = models.IntegerField(default=0)
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user = models.ForeignKey(User, on_delete=models.CASCADE)
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invitees = models.ManyToManyField(User, related_name="invitees")
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def valid(self):
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"""make sure it hasn't expired or been used"""
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return (self.expiry is None or self.expiry > timezone.now()) and (
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self.use_limit is None or self.times_used < self.use_limit
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)
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@property
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def link(self):
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"""formats the invite link"""
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return "https://{}/invite/{}".format(DOMAIN, self.code)
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class InviteRequest(BookWyrmModel):
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"""prospective users can request an invite"""
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email = models.EmailField(max_length=255, unique=True)
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invite = models.ForeignKey(
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SiteInvite, on_delete=models.SET_NULL, null=True, blank=True
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)
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invite_sent = models.BooleanField(default=False)
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ignored = models.BooleanField(default=False)
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def save(self, *args, **kwargs):
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"""don't create a request for a registered email"""
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if not self.id and User.objects.filter(email=self.email).exists():
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raise IntegrityError()
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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"""
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now = timezone.now()
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return now + datetime.timedelta(days=1)
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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)
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expiry = models.DateTimeField(default=get_passowrd_reset_expiry)
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user = models.OneToOneField(User, on_delete=models.CASCADE)
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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()
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@property
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def link(self):
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"""formats the invite link"""
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return "https://{}/password-reset/{}".format(DOMAIN, self.code)
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# pylint: disable=unused-argument
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@receiver(models.signals.post_save, sender=SiteSettings)
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def preview_image(instance, *args, **kwargs):
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"""Update image preview for the default site image"""
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if not ENABLE_PREVIEW_IMAGES:
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return
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changed_fields = instance.field_tracker.changed()
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if len(changed_fields) > 0:
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generate_site_preview_image_task.delay()
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