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from functools import partial
from typing import ClassVar
import pydantic
from asgiref.sync import sync_to_async
from django.core.files import File
from django.db import models
from django.utils.functional import lazy
from core.uploads import upload_namer
from core.uris import StaticAbsoluteUrl
from takahe import __version__
class UploadedImage(str):
"""
Type used to indicate a setting is an image
"""
class Config(models.Model):
"""
A configuration setting for either the server or a specific user or identity.
The possible options and their defaults are defined at the bottom of the file.
"""
key = models.CharField(max_length=500)
user = models.ForeignKey(
"users.user",
blank=True,
null=True,
related_name="configs",
on_delete=models.CASCADE,
)
identity = models.ForeignKey(
"users.identity",
blank=True,
null=True,
related_name="configs",
on_delete=models.CASCADE,
)
json = models.JSONField(blank=True, null=True)
image = models.ImageField(
blank=True,
null=True,
upload_to=partial(upload_namer, "config"),
)
class Meta:
unique_together = [
("key", "user", "identity"),
]
system: ClassVar["Config.ConfigOptions"] # type: ignore
@classmethod
def lazy_system_value(cls, key: str):
"""
Lazily load a System.Config value
"""
if key not in cls.SystemOptions.__fields__:
raise KeyError(f"Undefined SystemOption for {key}")
return lazy(lambda: getattr(Config.system, key))
@classmethod
def load_values(cls, options_class, filters):
"""
Loads config options and returns an object with them
"""
values = {}
for config in cls.objects.filter(**filters):
values[config.key] = config.image.url if config.image else config.json
if values[config.key] is None:
del values[config.key]
values["version"] = __version__
return options_class(**values)
@classmethod
def load_system(cls):
"""
Loads the system config options object
"""
return cls.load_values(
cls.SystemOptions,
{"identity__isnull": True, "user__isnull": True},
)
@classmethod
async def aload_system(cls):
"""
Async loads the system config options object
"""
return await sync_to_async(cls.load_values)(
cls.SystemOptions,
{"identity__isnull": True, "user__isnull": True},
)
@classmethod
def load_user(cls, user):
"""
Loads a user config options object
"""
return cls.load_values(
cls.UserOptions,
{"identity__isnull": True, "user": user},
)
@classmethod
async def aload_user(cls, user):
"""
Async loads the user config options object
"""
return await sync_to_async(cls.load_values)(
cls.UserOptions,
{"identity__isnull": True, "user": user},
)
@classmethod
def load_identity(cls, identity):
"""
Loads an identity config options object
"""
return cls.load_values(
cls.IdentityOptions,
{"identity": identity, "user__isnull": True},
)
@classmethod
async def aload_identity(cls, identity):
"""
Async loads an identity config options object
"""
return await sync_to_async(cls.load_values)(
cls.IdentityOptions,
{"identity": identity, "user__isnull": True},
)
@classmethod
def set_value(cls, key, value, options_class, filters):
config_field = options_class.__fields__[key]
if isinstance(value, File):
if config_field.type_ is not UploadedImage:
raise ValueError(f"Cannot save file to {key} of type: {type(value)}")
cls.objects.update_or_create(
key=key,
defaults={"json": None, "image": value},
**filters,
)
elif value is None:
cls.objects.filter(key=key, **filters).delete()
else:
if not isinstance(value, config_field.type_):
raise ValueError(f"Invalid type for {key}: {type(value)}")
if value == config_field.default:
cls.objects.filter(key=key, **filters).delete()
else:
cls.objects.update_or_create(
key=key,
defaults={"json": value},
**filters,
)
@classmethod
def set_system(cls, key, value):
cls.set_value(
key,
value,
cls.SystemOptions,
{"identity__isnull": True, "user__isnull": True},
)
@classmethod
def set_user(cls, user, key, value):
cls.set_value(
key,
value,
cls.UserOptions,
{"identity__isnull": True, "user": user},
)
@classmethod
def set_identity(cls, identity, key, value):
cls.set_value(
key,
value,
cls.IdentityOptions,
{"identity": identity, "user__isnull": True},
)
class SystemOptions(pydantic.BaseModel):
version: str = __version__
system_actor_public_key: str = ""
system_actor_private_key: str = ""
site_name: str = "Takahē"
highlight_color: str = "#449c8c"
site_about: str = "<h2>Welcome!</h2>\n\nThis is a community running Takahē."
site_icon: UploadedImage = StaticAbsoluteUrl("img/icon-128.png").relative # type: ignore
site_banner: UploadedImage = StaticAbsoluteUrl(
"img/fjords-banner-600.jpg"
).relative # type: ignore
policy_terms: str = ""
policy_privacy: str = ""
policy_rules: str = ""
signup_allowed: bool = True
signup_invite_only: bool = False
signup_text: str = ""
content_warning_text: str = "Content Warning"
post_length: int = 500
post_minimum_interval: int = 3 # seconds
identity_min_length: int = 2
identity_max_per_user: int = 5
identity_max_age: int = 24 * 60 * 60
inbox_message_purge_after: int = 24 * 60 * 60
hashtag_unreviewed_are_public: bool = True
hashtag_stats_max_age: int = 60 * 60
emoji_unreviewed_are_public: bool = True
cache_timeout_page_default: int = 60
cache_timeout_page_timeline: int = 60 * 3
cache_timeout_page_post: int = 60 * 2
cache_timeout_identity_feed: int = 60 * 5
restricted_usernames: str = "admin\nadmins\nadministrator\nadministrators\nsystem\nroot\nannounce\nannouncement\nannouncements"
class UserOptions(pydantic.BaseModel):
pass
class IdentityOptions(pydantic.BaseModel):
toot_mode: bool = False
default_post_visibility: int = 0 # Post.Visibilities.public
visible_follows: bool = True
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