mirror of
https://github.com/jazzband/django-axes.git
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127 lines
4.2 KiB
Python
127 lines
4.2 KiB
Python
from django.core.checks import Tags, Warning, register # pylint: disable=redefined-builtin
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from django.utils.module_loading import import_string
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from axes.backends import AxesBackend
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from axes.conf import settings
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class Messages:
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CACHE_INVALID = (
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"You are using the django-axes cache handler for login attempt tracking."
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" Your cache configuration is however invalid and will not work correctly with django-axes."
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" This can leave security holes in your login systems as attempts are not tracked correctly."
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" Reconfigure settings.AXES_CACHE and settings.CACHES per django-axes configuration documentation."
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)
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MIDDLEWARE_INVALID = (
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"You do not have 'axes.middleware.AxesMiddleware' in your settings.MIDDLEWARE."
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)
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BACKEND_INVALID = (
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"You do not have 'axes.backends.AxesBackend' or a subclass in your settings.AUTHENTICATION_BACKENDS."
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)
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SETTING_DEPRECATED = (
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'You have a deprecated setting {deprecated_setting} configured in your project settings'
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)
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class Hints:
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CACHE_INVALID = None
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MIDDLEWARE_INVALID = None
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BACKEND_INVALID = 'AxesModelBackend was renamed to AxesBackend in django-axes version 5.0.'
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SETTING_DEPRECATED = None
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class Codes:
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CACHE_INVALID = 'axes.W001'
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MIDDLEWARE_INVALID = 'axes.W002'
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BACKEND_INVALID = 'axes.W003'
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SETTING_DEPRECATED = 'axes.W004'
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@register(Tags.security, Tags.caches, Tags.compatibility)
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def axes_cache_check(app_configs, **kwargs): # pylint: disable=unused-argument
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axes_handler = getattr(settings, 'AXES_HANDLER', '')
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axes_cache_key = getattr(settings, 'AXES_CACHE', 'default')
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axes_cache_config = settings.CACHES.get(axes_cache_key, {})
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axes_cache_backend = axes_cache_config.get('BACKEND', '')
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axes_cache_backend_incompatible = [
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'django.core.cache.backends.dummy.DummyCache',
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'django.core.cache.backends.locmem.LocMemCache',
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'django.core.cache.backends.filebased.FileBasedCache',
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]
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warnings = []
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if axes_handler == 'axes.handlers.cache.AxesCacheHandler':
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if axes_cache_backend in axes_cache_backend_incompatible:
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warnings.append(Warning(
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msg=Messages.CACHE_INVALID,
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hint=Hints.CACHE_INVALID,
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id=Codes.CACHE_INVALID,
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))
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return warnings
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@register(Tags.security, Tags.compatibility)
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def axes_middleware_check(app_configs, **kwargs): # pylint: disable=unused-argument
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warnings = []
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if 'axes.middleware.AxesMiddleware' not in settings.MIDDLEWARE:
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warnings.append(Warning(
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msg=Messages.MIDDLEWARE_INVALID,
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hint=Hints.MIDDLEWARE_INVALID,
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id=Codes.MIDDLEWARE_INVALID,
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))
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return warnings
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@register(Tags.security, Tags.compatibility)
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def axes_backend_check(app_configs, **kwargs): # pylint: disable=unused-argument
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warnings = []
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found = False
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for name in settings.AUTHENTICATION_BACKENDS:
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try:
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backend = import_string(name)
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except ModuleNotFoundError as e:
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raise ModuleNotFoundError('Can not find module path defined in settings.AUTHENTICATION_BACKENDS') from e
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except ImportError as e:
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raise ImportError('Can not import backend class defined in settings.AUTHENTICATION_BACKENDS') from e
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if issubclass(backend, AxesBackend):
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found = True
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break
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if not found:
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warnings.append(Warning(
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msg=Messages.BACKEND_INVALID,
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hint=Hints.BACKEND_INVALID,
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id=Codes.BACKEND_INVALID,
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))
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return warnings
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@register(Tags.compatibility)
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def axes_deprecation_check(app_configs, **kwargs): # pylint: disable=unused-argument
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warnings = []
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deprecated_settings = [
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'AXES_DISABLE_SUCCESS_ACCESS_LOG',
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]
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for deprecated_setting in deprecated_settings:
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try:
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getattr(settings, deprecated_setting)
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warnings.append(Warning(
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msg=Messages.SETTING_DEPRECATED.format(deprecated_setting=deprecated_setting),
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hint=None,
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id=Codes.SETTING_DEPRECATED,
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))
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except AttributeError:
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pass
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return warnings
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