forked from CGM_Public/pretix_original
93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
#
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# This file is part of pretix (Community Edition).
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#
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# Copyright (C) 2014-2020 Raphael Michel and contributors
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# Copyright (C) 2020-2021 rami.io GmbH and contributors
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#
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# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
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# Public License as published by the Free Software Foundation in version 3 of the License.
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#
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# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
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# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
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# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
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# this file, see <https://pretix.eu/about/en/license>.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
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# <https://www.gnu.org/licenses/>.
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#
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import os
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import sys
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from enum import Enum
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from typing import List
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from django.apps import AppConfig, apps
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from django.conf import settings
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from django.core.exceptions import ImproperlyConfigured
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class PluginType(Enum):
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"""
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Plugin type classification. THIS IS DEPRECATED, DO NOT USE ANY MORE.
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This is only not removed yet as external plugins might have references
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to this enum.
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"""
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RESTRICTION = 1
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PAYMENT = 2
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ADMINFEATURE = 3
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EXPORT = 4
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def get_all_plugins(event=None) -> List[type]:
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"""
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Returns the PretixPluginMeta classes of all plugins found in the installed Django apps.
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"""
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plugins = []
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for app in apps.get_app_configs():
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if hasattr(app, 'PretixPluginMeta'):
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meta = app.PretixPluginMeta
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meta.module = app.name
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meta.app = app
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if app.name in settings.PRETIX_PLUGINS_EXCLUDE:
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continue
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if hasattr(app, 'is_available') and event:
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if not app.is_available(event):
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continue
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plugins.append(meta)
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return sorted(
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plugins,
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key=lambda m: (0 if m.module.startswith('pretix.') else 1, str(m.name).lower().replace('pretix ', ''))
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)
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class PluginConfigMeta(type):
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def __getattribute__(cls, item):
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if item == "default" and cls is PluginConfig:
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return False
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return super().__getattribute__(item)
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class PluginConfig(AppConfig, metaclass=PluginConfigMeta):
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IGNORE = False
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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if not hasattr(self, 'PretixPluginMeta'):
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raise ImproperlyConfigured("A pretix plugin config should have a PretixPluginMeta inner class.")
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if hasattr(self.PretixPluginMeta, 'compatibility') and not os.environ.get("PRETIX_IGNORE_CONFLICTS") == "True":
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import pkg_resources
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try:
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pkg_resources.require(self.PretixPluginMeta.compatibility)
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except pkg_resources.VersionConflict as e:
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print("Incompatible plugins found!")
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print("Plugin {} requires you to have {}, but you installed {}.".format(
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self.name, e.req, e.dist
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))
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sys.exit(1)
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