74 lines
2.9 KiB
Python
74 lines
2.9 KiB
Python
from importlib import import_module
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from django.core.exceptions import ImproperlyConfigured
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from django.urls import (
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LocaleRegexURLResolver, RegexURLPattern, RegexURLResolver,
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)
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from django.views import defaults
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__all__ = ['handler400', 'handler403', 'handler404', 'handler500', 'include', 'url']
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handler400 = defaults.bad_request
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handler403 = defaults.permission_denied
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handler404 = defaults.page_not_found
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handler500 = defaults.server_error
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def include(arg, namespace=None):
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app_name = None
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if isinstance(arg, tuple):
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# callable returning a namespace hint
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try:
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urlconf_module, app_name = arg
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except ValueError:
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if namespace:
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raise ImproperlyConfigured(
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'Cannot override the namespace for a dynamic module that '
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'provides a namespace.'
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)
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raise ImproperlyConfigured(
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'Passing a %d-tuple to django.conf.urls.include() is not supported. '
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'Pass a 2-tuple containing the list of patterns and app_name, '
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'and provide the namespace argument to include() instead.' % len(arg)
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)
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else:
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# No namespace hint - use manually provided namespace
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urlconf_module = arg
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if isinstance(urlconf_module, str):
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urlconf_module = import_module(urlconf_module)
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patterns = getattr(urlconf_module, 'urlpatterns', urlconf_module)
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app_name = getattr(urlconf_module, 'app_name', app_name)
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if namespace and not app_name:
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raise ImproperlyConfigured(
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'Specifying a namespace in django.conf.urls.include() without '
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'providing an app_name is not supported. Set the app_name attribute '
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'in the included module, or pass a 2-tuple containing the list of '
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'patterns and app_name instead.',
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)
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namespace = namespace or app_name
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# Make sure we can iterate through the patterns (without this, some
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# testcases will break).
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if isinstance(patterns, (list, tuple)):
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for url_pattern in patterns:
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# Test if the LocaleRegexURLResolver is used within the include;
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# this should throw an error since this is not allowed!
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if isinstance(url_pattern, LocaleRegexURLResolver):
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raise ImproperlyConfigured(
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'Using i18n_patterns in an included URLconf is not allowed.')
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return (urlconf_module, app_name, namespace)
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def url(regex, view, kwargs=None, name=None):
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if isinstance(view, (list, tuple)):
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# For include(...) processing.
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urlconf_module, app_name, namespace = view
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return RegexURLResolver(regex, urlconf_module, kwargs, app_name=app_name, namespace=namespace)
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elif callable(view):
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return RegexURLPattern(regex, view, kwargs, name)
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else:
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raise TypeError('view must be a callable or a list/tuple in the case of include().')
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