/
settings.py
479 lines (425 loc) · 13.3 KB
/
settings.py
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import decimal
import json
from datetime import date, datetime, time
from typing import Any, Dict, Optional
import dateutil.parser
from django.conf import settings
from django.core.files import File
from django.core.files.storage import default_storage
from django.db.models import Model
from django.utils.translation import ugettext_noop
from pretix.base.i18n import LazyI18nString
DEFAULTS = {
'max_items_per_order': {
'default': '10',
'type': int
},
'attendee_names_asked': {
'default': 'True',
'type': bool
},
'attendee_names_required': {
'default': 'False',
'type': bool
},
'invoice_address_asked': {
'default': 'True',
'type': bool,
},
'invoice_address_required': {
'default': 'False',
'type': bool,
},
'invoice_address_vatid': {
'default': 'False',
'type': bool,
},
'invoice_numbers_consecutive': {
'default': 'True',
'type': bool,
},
'reservation_time': {
'default': '30',
'type': int
},
'payment_term_days': {
'default': '14',
'type': int
},
'payment_term_last': {
'default': None,
'type': datetime,
},
'payment_term_expire_automatically': {
'default': 'True',
'type': bool
},
'payment_term_accept_late': {
'default': 'True',
'type': bool
},
'presale_start_show_date': {
'default': 'True',
'type': bool
},
'tax_rate_default': {
'default': '0.00',
'type': decimal.Decimal
},
'invoice_generate': {
'default': 'False',
'type': str
},
'invoice_address_from': {
'default': '',
'type': str
},
'invoice_introductory_text': {
'default': '',
'type': LazyI18nString
},
'invoice_additional_text': {
'default': '',
'type': LazyI18nString
},
'invoice_footer_text': {
'default': '',
'type': LazyI18nString
},
'invoice_language': {
'default': '__user__',
'type': str
},
'show_items_outside_presale_period': {
'default': 'True',
'type': bool
},
'timezone': {
'default': settings.TIME_ZONE,
'type': str
},
'locales': {
'default': json.dumps([settings.LANGUAGE_CODE]),
'type': list
},
'locale': {
'default': settings.LANGUAGE_CODE,
'type': str
},
'show_date_to': {
'default': 'True',
'type': bool
},
'show_times': {
'default': 'True',
'type': bool
},
'show_quota_left': {
'default': 'False',
'type': bool
},
'ticket_download': {
'default': 'False',
'type': bool
},
'ticket_download_date': {
'default': None,
'type': datetime
},
'last_order_modification_date': {
'default': None,
'type': datetime
},
'cancel_allow_user': {
'default': 'True',
'type': bool
},
'contact_mail': {
'default': None,
'type': str
},
'imprint_url': {
'default': None,
'type': str
},
'mail_prefix': {
'default': None,
'type': str
},
'mail_from': {
'default': settings.MAIL_FROM,
'type': str
},
'mail_text_resend_link': {
'type': LazyI18nString,
'default': LazyI18nString.from_gettext(ugettext_noop("""Hello,
you receive this message because you asked us to send you the link
to your order for {event}.
You can change your order details and view the status of your order at
{url}
Best regards,
Your {event} team"""))
},
'mail_text_order_free': {
'type': LazyI18nString,
'default': LazyI18nString.from_gettext(ugettext_noop("""Hello,
we successfully received your order for {event}. As you only ordered
free products, no payment is required.
You can change your order details and view the status of your order at
{url}
Best regards,
Your {event} team"""))
},
'mail_text_order_placed': {
'type': LazyI18nString,
'default': LazyI18nString.from_gettext(ugettext_noop("""Hello,
we successfully received your order for {event} with a total value
of {total} {currency}. Please complete your payment before {date}.
{paymentinfo}
You can change your order details and view the status of your order at
{url}
Best regards,
Your {event} team"""))
},
'mail_text_order_changed': {
'type': LazyI18nString,
'default': LazyI18nString.from_gettext(ugettext_noop("""Hello,
your order for {event} has been changed.
You can view the status of your order at
{url}
Best regards,
Your {event} team"""))
},
'mail_text_order_paid': {
'type': LazyI18nString,
'default': LazyI18nString.from_gettext(ugettext_noop("""Hello,
we successfully received your payment for {event}. Thank you!
You can change your order details and view the status of your order at
{url}
Best regards,
Your {event} team"""))
},
'smtp_use_custom': {
'default': 'False',
'type': bool
},
'smtp_host': {
'default': '',
'type': str
},
'smtp_port': {
'default': 587,
'type': int
},
'smtp_username': {
'default': '',
'type': str
},
'smtp_password': {
'default': '',
'type': str
},
'smtp_use_tls': {
'default': 'True',
'type': bool
},
'smtp_use_ssl': {
'default': 'False',
'type': bool
},
'primary_color': {
'default': '#8E44B3',
'type': str
},
'presale_css_file': {
'default': None,
'type': str
},
'presale_css_checksum': {
'default': None,
'type': str
},
'logo_image': {
'default': None,
'type': File
},
'frontpage_text': {
'default': '',
'type': LazyI18nString
}
}
class SettingsProxy:
"""
This objects allows convenient access to settings stored in the
EventSettings/OrganizerSettings database model. It exposes all settings as
properties and it will do all the nasty inheritance and defaults stuff for
you.
"""
def __init__(self, obj: Model, parent: Optional[Model]=None, type=None):
self._obj = obj
self._parent = parent
self._cached_obj = None
self._type = type
def _cache(self) -> Dict[str, Any]:
if self._cached_obj is None:
self._cached_obj = {}
for setting in self._obj.setting_objects.all():
self._cached_obj[setting.key] = setting
return self._cached_obj
def _flush(self) -> None:
self._cached_obj = None
def freeze(self) -> dict:
"""
Returns a dictionary of all settings set for this object, including
any default values of its parents or hardcoded in pretix.
"""
settings = {}
for key, v in DEFAULTS.items():
settings[key] = self._unserialize(v['default'], v['type'])
if self._parent:
settings.update(self._parent.settings.freeze())
for key, value in self._cache().items():
settings[key] = self.get(key)
return settings
def _unserialize(self, value: str, as_type: type) -> Any:
if as_type is None and value is not None and value.startswith('file://'):
as_type = File
if as_type is not None and isinstance(value, as_type):
return value
elif value is None:
return None
elif as_type == int or as_type == float or as_type == decimal.Decimal:
return as_type(value)
elif as_type == dict or as_type == list:
return json.loads(value)
elif as_type == bool or value in ('True', 'False'):
return value == 'True'
elif as_type == File:
try:
fi = default_storage.open(value[7:], 'r')
fi.url = default_storage.url(value[7:])
return fi
except OSError:
return False
elif as_type == datetime:
return dateutil.parser.parse(value)
elif as_type == date:
return dateutil.parser.parse(value).date()
elif as_type == time:
return dateutil.parser.parse(value).time()
elif as_type == LazyI18nString and not isinstance(value, LazyI18nString):
try:
return LazyI18nString(json.loads(value))
except ValueError:
return LazyI18nString(str(value))
elif as_type is not None and issubclass(as_type, Model):
return as_type.objects.get(pk=value)
return value
def _serialize(self, value: Any) -> str:
if isinstance(value, str):
return value
elif isinstance(value, int) or isinstance(value, float) \
or isinstance(value, bool) or isinstance(value, decimal.Decimal):
return str(value)
elif isinstance(value, list) or isinstance(value, dict):
return json.dumps(value)
elif isinstance(value, datetime) or isinstance(value, date) or isinstance(value, time):
return value.isoformat()
elif isinstance(value, Model):
return value.pk
elif isinstance(value, LazyI18nString):
return json.dumps(value.data)
elif isinstance(value, File):
return 'file://' + value.name
raise TypeError('Unable to serialize %s into a setting.' % str(type(value)))
def get(self, key: str, default=None, as_type: type=None):
"""
Get a setting specified by key ``key``. Normally, settings are strings, but
if you put non-strings into the settings object, you can request unserialization
by specifying ``as_type``. If the key does not have a harcdoded type in the pretix source,
omitting ``as_type`` always will get you a string.
If the setting with the specified name does not exist on this object, any parent object
will be queried (e.g. the organizer of an event). If still no value is found, a default
value hardcoded will be returned if one exists. If not, the value of the ``default`` argument
will be returned instead.
"""
if as_type is None and key in DEFAULTS:
as_type = DEFAULTS[key]['type']
if key in self._cache():
value = self._cache()[key].value
else:
value = None
if self._parent:
value = self._parent.settings.get(key)
if value is None and key in DEFAULTS:
value = DEFAULTS[key]['default']
if value is None and default is not None:
value = default
return self._unserialize(value, as_type)
def __getitem__(self, key: str) -> Any:
return self.get(key)
def __getattr__(self, key: str) -> Any:
if key.startswith('_'):
return super().__getattr__(key)
return self.get(key)
def __setattr__(self, key: str, value: Any) -> None:
if key.startswith('_'):
return super().__setattr__(key, value)
self.set(key, value)
def __setitem__(self, key: str, value: Any) -> None:
self.set(key, value)
def set(self, key: str, value: Any) -> None:
"""
Stores a setting to the database of this object.
"""
if key in self._cache():
s = self._cache()[key]
else:
s = self._type(object=self._obj, key=key)
s.value = self._serialize(value)
s.save()
self._cache()[key] = s
def __delattr__(self, key: str) -> None:
if key.startswith('_'):
return super().__delattr__(key)
self.delete(key)
def __delitem__(self, key: str) -> None:
self.delete(key)
def delete(self, key: str) -> None:
"""
Deletes a setting from this object's storage.
"""
if key in self._cache():
self._cache()[key].delete()
del self._cache()[key]
class SettingsSandbox:
"""
Transparently proxied access to event settings, handling your prefixes for you.
:param typestr: The first part of the pretix, e.g. ``plugin``
:param key: The prefix, e.g. the name of your plugin
:param obj: The event or organizer that should be queried
"""
def __init__(self, typestr: str, key: str, obj: Model):
self._event = obj
self._type = typestr
self._key = key
def _convert_key(self, key: str) -> str:
return '%s_%s_%s' % (self._type, self._key, key)
def __setitem__(self, key: str, value: Any) -> None:
self.set(key, value)
def __setattr__(self, key: str, value: Any) -> None:
if key.startswith('_'):
return super().__setattr__(key, value)
self.set(key, value)
def __getattr__(self, item: str) -> Any:
return self.get(item)
def __getitem__(self, item: str) -> Any:
return self.get(item)
def __delitem__(self, key: str) -> None:
del self._event.settings[self._convert_key(key)]
def __delattr__(self, key: str) -> None:
del self._event.settings[self._convert_key(key)]
def get(self, key: str, default: Any=None, as_type: type=str):
return self._event.settings.get(self._convert_key(key), default=default, as_type=as_type)
def set(self, key: str, value: Any):
self._event.settings.set(self._convert_key(key), value)