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This commit is contained in:
ladeng07
2022-05-06 15:45:57 +08:00
parent 12f390949b
commit 51552904f9
2347 changed files with 120102 additions and 53549 deletions
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venv/Lib/site-packages/django/urls/resolvers.py
+92 -200
View File
@@ -10,7 +10,6 @@ import inspect
import re
import string
from importlib import import_module
from pickle import PicklingError
from urllib.parse import quote
from asgiref.local import Local
@@ -31,17 +30,7 @@ from .utils import get_callable
class ResolverMatch:
def __init__(
self,
func,
args,
kwargs,
url_name=None,
app_names=None,
namespaces=None,
route=None,
tried=None,
):
def __init__(self, func, args, kwargs, url_name=None, app_names=None, namespaces=None, route=None, tried=None):
self.func = func
self.args = args
self.kwargs = kwargs
@@ -52,47 +41,29 @@ class ResolverMatch:
# If a URLRegexResolver doesn't have a namespace or app_name, it passes
# in an empty value.
self.app_names = [x for x in app_names if x] if app_names else []
self.app_name = ":".join(self.app_names)
self.app_name = ':'.join(self.app_names)
self.namespaces = [x for x in namespaces if x] if namespaces else []
self.namespace = ":".join(self.namespaces)
self.namespace = ':'.join(self.namespaces)
if hasattr(func, "view_class"):
func = func.view_class
if not hasattr(func, "__name__"):
if not hasattr(func, '__name__'):
# A class-based view
self._func_path = func.__class__.__module__ + "." + func.__class__.__name__
self._func_path = func.__class__.__module__ + '.' + func.__class__.__name__
else:
# A function-based view
self._func_path = func.__module__ + "." + func.__name__
self._func_path = func.__module__ + '.' + func.__name__
view_path = url_name or self._func_path
self.view_name = ":".join(self.namespaces + [view_path])
self.view_name = ':'.join(self.namespaces + [view_path])
def __getitem__(self, index):
return (self.func, self.args, self.kwargs)[index]
def __repr__(self):
if isinstance(self.func, functools.partial):
func = repr(self.func)
else:
func = self._func_path
return (
"ResolverMatch(func=%s, args=%r, kwargs=%r, url_name=%r, "
"app_names=%r, namespaces=%r, route=%r)"
% (
func,
self.args,
self.kwargs,
self.url_name,
self.app_names,
self.namespaces,
self.route,
)
return "ResolverMatch(func=%s, args=%s, kwargs=%s, url_name=%s, app_names=%s, namespaces=%s, route=%s)" % (
self._func_path, self.args, self.kwargs, self.url_name,
self.app_names, self.namespaces, self.route,
)
def __reduce_ex__(self, protocol):
raise PicklingError(f"Cannot pickle {self.__class__.__qualname__}.")
def get_resolver(urlconf=None):
if urlconf is None:
@@ -102,7 +73,7 @@ def get_resolver(urlconf=None):
@functools.lru_cache(maxsize=None)
def _get_cached_resolver(urlconf=None):
return URLResolver(RegexPattern(r"^/"), urlconf)
return URLResolver(RegexPattern(r'^/'), urlconf)
@functools.lru_cache(maxsize=None)
@@ -113,7 +84,7 @@ def get_ns_resolver(ns_pattern, resolver, converters):
pattern = RegexPattern(ns_pattern)
pattern.converters = dict(converters)
ns_resolver = URLResolver(pattern, resolver.url_patterns)
return URLResolver(RegexPattern(r"^/"), [ns_resolver])
return URLResolver(RegexPattern(r'^/'), [ns_resolver])
class LocaleRegexDescriptor:
@@ -131,8 +102,8 @@ class LocaleRegexDescriptor:
# avoid per-language compilation.
pattern = getattr(instance, self.attr)
if isinstance(pattern, str):
instance.__dict__["regex"] = instance._compile(pattern)
return instance.__dict__["regex"]
instance.__dict__['regex'] = instance._compile(pattern)
return instance.__dict__['regex']
language_code = get_language()
if language_code not in instance._regex_dict:
instance._regex_dict[language_code] = instance._compile(str(pattern))
@@ -158,9 +129,7 @@ class CheckURLMixin:
# Skip check as it can be useful to start a URL pattern with a slash
# when APPEND_SLASH=False.
return []
if regex_pattern.startswith(("/", "^/", "^\\/")) and not regex_pattern.endswith(
"/"
):
if regex_pattern.startswith(('/', '^/', '^\\/')) and not regex_pattern.endswith('/'):
warning = Warning(
"Your URL pattern {} has a route beginning with a '/'. Remove this "
"slash as it is unnecessary. If this pattern is targeted in an "
@@ -175,7 +144,7 @@ class CheckURLMixin:
class RegexPattern(CheckURLMixin):
regex = LocaleRegexDescriptor("_regex")
regex = LocaleRegexDescriptor('_regex')
def __init__(self, regex, name=None, is_endpoint=False):
self._regex = regex
@@ -185,11 +154,7 @@ class RegexPattern(CheckURLMixin):
self.converters = {}
def match(self, path):
match = (
self.regex.fullmatch(path)
if self._is_endpoint and self.regex.pattern.endswith("$")
else self.regex.search(path)
)
match = self.regex.search(path)
if match:
# If there are any named groups, use those as kwargs, ignoring
# non-named groups. Otherwise, pass all non-named arguments as
@@ -197,7 +162,7 @@ class RegexPattern(CheckURLMixin):
kwargs = match.groupdict()
args = () if kwargs else match.groups()
kwargs = {k: v for k, v in kwargs.items() if v is not None}
return path[match.end() :], args, kwargs
return path[match.end():], args, kwargs
return None
def check(self):
@@ -209,15 +174,13 @@ class RegexPattern(CheckURLMixin):
def _check_include_trailing_dollar(self):
regex_pattern = self.regex.pattern
if regex_pattern.endswith("$") and not regex_pattern.endswith(r"\$"):
return [
Warning(
"Your URL pattern {} uses include with a route ending with a '$'. "
"Remove the dollar from the route to avoid problems including "
"URLs.".format(self.describe()),
id="urls.W001",
)
]
if regex_pattern.endswith('$') and not regex_pattern.endswith(r'\$'):
return [Warning(
"Your URL pattern {} uses include with a route ending with a '$'. "
"Remove the dollar from the route to avoid problems including "
"URLs.".format(self.describe()),
id='urls.W001',
)]
else:
return []
@@ -235,7 +198,7 @@ class RegexPattern(CheckURLMixin):
_PATH_PARAMETER_COMPONENT_RE = _lazy_re_compile(
r"<(?:(?P<converter>[^>:]+):)?(?P<parameter>[^>]+)>"
r'<(?:(?P<converter>[^>:]+):)?(?P<parameter>[^>]+)>'
)
@@ -247,7 +210,7 @@ def _route_to_regex(route, is_endpoint=False):
and {'pk': <django.urls.converters.IntConverter>}.
"""
original_route = route
parts = ["^"]
parts = ['^']
converters = {}
while True:
match = _PATH_PARAMETER_COMPONENT_RE.search(route)
@@ -259,34 +222,34 @@ def _route_to_regex(route, is_endpoint=False):
"URL route '%s' cannot contain whitespace in angle brackets "
"<…>." % original_route
)
parts.append(re.escape(route[: match.start()]))
route = route[match.end() :]
parameter = match["parameter"]
parts.append(re.escape(route[:match.start()]))
route = route[match.end():]
parameter = match['parameter']
if not parameter.isidentifier():
raise ImproperlyConfigured(
"URL route '%s' uses parameter name %r which isn't a valid "
"Python identifier." % (original_route, parameter)
)
raw_converter = match["converter"]
raw_converter = match['converter']
if raw_converter is None:
# If a converter isn't specified, the default is `str`.
raw_converter = "str"
raw_converter = 'str'
try:
converter = get_converter(raw_converter)
except KeyError as e:
raise ImproperlyConfigured(
"URL route %r uses invalid converter %r."
'URL route %r uses invalid converter %r.'
% (original_route, raw_converter)
) from e
converters[parameter] = converter
parts.append("(?P<" + parameter + ">" + converter.regex + ")")
parts.append('(?P<' + parameter + '>' + converter.regex + ')')
if is_endpoint:
parts.append(r"\Z")
return "".join(parts), converters
parts.append('$')
return ''.join(parts), converters
class RoutePattern(CheckURLMixin):
regex = LocaleRegexDescriptor("_route")
regex = LocaleRegexDescriptor('_route')
def __init__(self, route, name=None, is_endpoint=False):
self._route = route
@@ -306,21 +269,19 @@ class RoutePattern(CheckURLMixin):
kwargs[key] = converter.to_python(value)
except ValueError:
return None
return path[match.end() :], (), kwargs
return path[match.end():], (), kwargs
return None
def check(self):
warnings = self._check_pattern_startswith_slash()
route = self._route
if "(?P<" in route or route.startswith("^") or route.endswith("$"):
warnings.append(
Warning(
"Your URL pattern {} has a route that contains '(?P<', begins "
"with a '^', or ends with a '$'. This was likely an oversight "
"when migrating to django.urls.path().".format(self.describe()),
id="2_0.W001",
)
)
if '(?P<' in route or route.startswith('^') or route.endswith('$'):
warnings.append(Warning(
"Your URL pattern {} has a route that contains '(?P<', begins "
"with a '^', or ends with a '$'. This was likely an oversight "
"when migrating to django.urls.path().".format(self.describe()),
id='2_0.W001',
))
return warnings
def _compile(self, route):
@@ -344,14 +305,14 @@ class LocalePrefixPattern:
def language_prefix(self):
language_code = get_language() or settings.LANGUAGE_CODE
if language_code == settings.LANGUAGE_CODE and not self.prefix_default_language:
return ""
return ''
else:
return "%s/" % language_code
return '%s/' % language_code
def match(self, path):
language_prefix = self.language_prefix
if path.startswith(language_prefix):
return path[len(language_prefix) :], (), {}
return path[len(language_prefix):], (), {}
return None
def check(self):
@@ -372,12 +333,11 @@ class URLPattern:
self.name = name
def __repr__(self):
return "<%s %s>" % (self.__class__.__name__, self.pattern.describe())
return '<%s %s>' % (self.__class__.__name__, self.pattern.describe())
def check(self):
warnings = self._check_pattern_name()
warnings.extend(self.pattern.check())
warnings.extend(self._check_callback())
return warnings
def _check_pattern_name(self):
@@ -394,34 +354,13 @@ class URLPattern:
else:
return []
def _check_callback(self):
from django.views import View
view = self.callback
if inspect.isclass(view) and issubclass(view, View):
return [
Error(
"Your URL pattern %s has an invalid view, pass %s.as_view() "
"instead of %s."
% (
self.pattern.describe(),
view.__name__,
view.__name__,
),
id="urls.E009",
)
]
return []
def resolve(self, path):
match = self.pattern.match(path)
if match:
new_path, args, kwargs = match
# Pass any extra_kwargs as **kwargs.
kwargs.update(self.default_args)
return ResolverMatch(
self.callback, args, kwargs, self.pattern.name, route=str(self.pattern)
)
return ResolverMatch(self.callback, args, kwargs, self.pattern.name, route=str(self.pattern))
@cached_property
def lookup_str(self):
@@ -432,17 +371,13 @@ class URLPattern:
callback = self.callback
if isinstance(callback, functools.partial):
callback = callback.func
if hasattr(callback, "view_class"):
callback = callback.view_class
elif not hasattr(callback, "__name__"):
if not hasattr(callback, '__name__'):
return callback.__module__ + "." + callback.__class__.__name__
return callback.__module__ + "." + callback.__qualname__
class URLResolver:
def __init__(
self, pattern, urlconf_name, default_kwargs=None, app_name=None, namespace=None
):
def __init__(self, pattern, urlconf_name, default_kwargs=None, app_name=None, namespace=None):
self.pattern = pattern
# urlconf_name is the dotted Python path to the module defining
# urlpatterns. It may also be an object with an urlpatterns attribute
@@ -464,15 +399,12 @@ class URLResolver:
def __repr__(self):
if isinstance(self.urlconf_name, list) and self.urlconf_name:
# Don't bother to output the whole list, it can be huge
urlconf_repr = "<%s list>" % self.urlconf_name[0].__class__.__name__
urlconf_repr = '<%s list>' % self.urlconf_name[0].__class__.__name__
else:
urlconf_repr = repr(self.urlconf_name)
return "<%s %s (%s:%s) %s>" % (
self.__class__.__name__,
urlconf_repr,
self.app_name,
self.namespace,
self.pattern.describe(),
return '<%s %s (%s:%s) %s>' % (
self.__class__.__name__, urlconf_repr, self.app_name,
self.namespace, self.pattern.describe(),
)
def check(self):
@@ -490,12 +422,11 @@ class URLResolver:
try:
handler = self.resolve_error_handler(status_code)
except (ImportError, ViewDoesNotExist) as e:
path = getattr(self.urlconf_module, "handler%s" % status_code)
path = getattr(self.urlconf_module, 'handler%s' % status_code)
msg = (
"The custom handler{status_code} view '{path}' could not be "
"imported."
"The custom handler{status_code} view '{path}' could not be imported."
).format(status_code=status_code, path=path)
messages.append(Error(msg, hint=str(e), id="urls.E008"))
messages.append(Error(msg, hint=str(e), id='urls.E008'))
continue
signature = inspect.signature(handler)
args = [None] * num_parameters
@@ -507,10 +438,10 @@ class URLResolver:
"take the correct number of arguments ({args})."
).format(
status_code=status_code,
path=handler.__module__ + "." + handler.__qualname__,
args="request, exception" if num_parameters == 2 else "request",
path=handler.__module__ + '.' + handler.__qualname__,
args='request, exception' if num_parameters == 2 else 'request',
)
messages.append(Error(msg, id="urls.E007"))
messages.append(Error(msg, id='urls.E007'))
return messages
def _populate(self):
@@ -518,7 +449,7 @@ class URLResolver:
# infinite recursion. Concurrent threads may call this at the same
# time and will need to continue, so set 'populating' on a
# thread-local variable.
if getattr(self._local, "populating", False):
if getattr(self._local, 'populating', False):
return
try:
self._local.populating = True
@@ -528,45 +459,28 @@ class URLResolver:
language_code = get_language()
for url_pattern in reversed(self.url_patterns):
p_pattern = url_pattern.pattern.regex.pattern
if p_pattern.startswith("^"):
if p_pattern.startswith('^'):
p_pattern = p_pattern[1:]
if isinstance(url_pattern, URLPattern):
self._callback_strs.add(url_pattern.lookup_str)
bits = normalize(url_pattern.pattern.regex.pattern)
lookups.appendlist(
url_pattern.callback,
(
bits,
p_pattern,
url_pattern.default_args,
url_pattern.pattern.converters,
),
(bits, p_pattern, url_pattern.default_args, url_pattern.pattern.converters)
)
if url_pattern.name is not None:
lookups.appendlist(
url_pattern.name,
(
bits,
p_pattern,
url_pattern.default_args,
url_pattern.pattern.converters,
),
(bits, p_pattern, url_pattern.default_args, url_pattern.pattern.converters)
)
else: # url_pattern is a URLResolver.
url_pattern._populate()
if url_pattern.app_name:
apps.setdefault(url_pattern.app_name, []).append(
url_pattern.namespace
)
apps.setdefault(url_pattern.app_name, []).append(url_pattern.namespace)
namespaces[url_pattern.namespace] = (p_pattern, url_pattern)
else:
for name in url_pattern.reverse_dict:
for (
matches,
pat,
defaults,
converters,
) in url_pattern.reverse_dict.getlist(name):
for matches, pat, defaults, converters in url_pattern.reverse_dict.getlist(name):
new_matches = normalize(p_pattern + pat)
lookups.appendlist(
name,
@@ -574,17 +488,10 @@ class URLResolver:
new_matches,
p_pattern + pat,
{**defaults, **url_pattern.default_kwargs},
{
**self.pattern.converters,
**url_pattern.pattern.converters,
**converters,
},
),
{**self.pattern.converters, **url_pattern.pattern.converters, **converters}
)
)
for namespace, (
prefix,
sub_pattern,
) in url_pattern.namespace_dict.items():
for namespace, (prefix, sub_pattern) in url_pattern.namespace_dict.items():
current_converters = url_pattern.pattern.converters
sub_pattern.pattern.converters.update(current_converters)
namespaces[namespace] = (p_pattern + prefix, sub_pattern)
@@ -631,7 +538,7 @@ class URLResolver:
"""Join two routes, without the starting ^ in the second route."""
if not route1:
return route2
if route2.startswith("^"):
if route2.startswith('^'):
route2 = route2[1:]
return route1 + route2
@@ -650,7 +557,7 @@ class URLResolver:
try:
sub_match = pattern.resolve(new_path)
except Resolver404 as e:
self._extend_tried(tried, pattern, e.args[0].get("tried"))
self._extend_tried(tried, pattern, e.args[0].get('tried'))
else:
if sub_match:
# Merge captured arguments in match with submatch
@@ -658,16 +565,11 @@ class URLResolver:
# Update the sub_match_dict with the kwargs from the sub_match.
sub_match_dict.update(sub_match.kwargs)
# If there are *any* named groups, ignore all non-named groups.
# Otherwise, pass all non-named arguments as positional
# arguments.
# Otherwise, pass all non-named arguments as positional arguments.
sub_match_args = sub_match.args
if not sub_match_dict:
sub_match_args = args + sub_match.args
current_route = (
""
if isinstance(pattern, URLPattern)
else str(pattern.pattern)
)
current_route = '' if isinstance(pattern, URLPattern) else str(pattern.pattern)
self._extend_tried(tried, pattern, sub_match.tried)
return ResolverMatch(
sub_match.func,
@@ -680,8 +582,8 @@ class URLResolver:
tried,
)
tried.append([pattern])
raise Resolver404({"tried": tried, "path": new_path})
raise Resolver404({"path": path})
raise Resolver404({'tried': tried, 'path': new_path})
raise Resolver404({'path': path})
@cached_property
def urlconf_module(self):
@@ -698,26 +600,24 @@ class URLResolver:
iter(patterns)
except TypeError as e:
msg = (
"The included URLconf '{name}' does not appear to have "
"any patterns in it. If you see the 'urlpatterns' variable "
"with valid patterns in the file then the issue is probably "
"caused by a circular import."
"The included URLconf '{name}' does not appear to have any "
"patterns in it. If you see valid patterns in the file then "
"the issue is probably caused by a circular import."
)
raise ImproperlyConfigured(msg.format(name=self.urlconf_name)) from e
return patterns
def resolve_error_handler(self, view_type):
callback = getattr(self.urlconf_module, "handler%s" % view_type, None)
callback = getattr(self.urlconf_module, 'handler%s' % view_type, None)
if not callback:
# No handler specified in file; use lazy import, since
# django.conf.urls imports this file.
from django.conf import urls
callback = getattr(urls, "handler%s" % view_type)
callback = getattr(urls, 'handler%s' % view_type)
return get_callable(callback)
def reverse(self, lookup_view, *args, **kwargs):
return self._reverse_with_prefix(lookup_view, "", *args, **kwargs)
return self._reverse_with_prefix(lookup_view, '', *args, **kwargs)
def _reverse_with_prefix(self, lookup_view, _prefix, *args, **kwargs):
if args and kwargs:
@@ -759,22 +659,16 @@ class URLResolver:
# without quoting to build a decoded URL and look for a match.
# Then, if we have a match, redo the substitution with quoted
# arguments in order to return a properly encoded URL.
candidate_pat = _prefix.replace("%", "%%") + result
if re.search(
"^%s%s" % (re.escape(_prefix), pattern),
candidate_pat % text_candidate_subs,
):
candidate_pat = _prefix.replace('%', '%%') + result
if re.search('^%s%s' % (re.escape(_prefix), pattern), candidate_pat % text_candidate_subs):
# safe characters from `pchar` definition of RFC 3986
url = quote(
candidate_pat % text_candidate_subs,
safe=RFC3986_SUBDELIMS + "/~:@",
)
url = quote(candidate_pat % text_candidate_subs, safe=RFC3986_SUBDELIMS + '/~:@')
# Don't allow construction of scheme relative urls.
return escape_leading_slashes(url)
# lookup_view can be URL name or callable, but callables are not
# friendly in error messages.
m = getattr(lookup_view, "__module__", None)
n = getattr(lookup_view, "__name__", None)
m = getattr(lookup_view, '__module__', None)
n = getattr(lookup_view, '__name__', None)
if m is not None and n is not None:
lookup_view_s = "%s.%s" % (m, n)
else:
@@ -788,15 +682,13 @@ class URLResolver:
arg_msg = "keyword arguments '%s'" % kwargs
else:
arg_msg = "no arguments"
msg = "Reverse for '%s' with %s not found. %d pattern(s) tried: %s" % (
lookup_view_s,
arg_msg,
len(patterns),
patterns,
msg = (
"Reverse for '%s' with %s not found. %d pattern(s) tried: %s" %
(lookup_view_s, arg_msg, len(patterns), patterns)
)
else:
msg = (
"Reverse for '%(view)s' not found. '%(view)s' is not "
"a valid view function or pattern name." % {"view": lookup_view_s}
"a valid view function or pattern name." % {'view': lookup_view_s}
)
raise NoReverseMatch(msg)