def test_func_supports_parameter(self):
self.assertIs(inspect.func_supports_parameter(Person.all_kinds, 'address'), True)
self.assertIs(
inspect.func_supports_parameter(Person().all_kinds, 'address'),
True,
)
self.assertIs(inspect.func_supports_parameter(Person.all_kinds, 'zone'), False)
self.assertIs(
inspect.func_supports_parameter(Person().all_kinds, 'zone'),
False,
)
def get(self, key, default=None, version=None):
key = self.make_key(key, version=version)
self.validate_key(key)
db = router.db_for_read(self.cache_model_class)
connection = connections[db]
table = connection.ops.quote_name(self._table)
with connection.cursor() as cursor:
cursor.execute("SELECT cache_key, value, expires FROM %s "
"WHERE cache_key = %%s" % table, [key])
row = cursor.fetchone()
if row is None:
return default
expires = row[2]
expression = models.Expression(output_field=models.DateTimeField())
for converter in (connection.ops.get_db_converters(expression) +
expression.get_db_converters(connection)):
if func_supports_parameter(converter, 'context'): # RemovedInDjango30Warning
expires = converter(expires, expression, connection, {})
else:
expires = converter(expires, expression, connection)
if expires < timezone.now():
db = router.db_for_write(self.cache_model_class)
connection = connections[db]
with connection.cursor() as cursor:
cursor.execute("DELETE FROM %s "
"WHERE cache_key = %%s" % table, [key])
return default
value = connection.ops.process_clob(row[1])
return pickle.loads(base64.b64decode(value.encode()))
def save(self, name, content, save=True):
name = self.field.generate_filename(self.instance, name)
if func_supports_parameter(self.storage.save, 'max_length'):
self.name = self.storage.save(name,
content,
max_length=self.field.max_length)
else:
warnings.warn(
'Backwards compatibility for storage backends without '
'support for the `max_length` argument in '
'Storage.save() will be removed in Django 1.10.',
RemovedInDjango110Warning,
stacklevel=2)
self.name = self.storage.save(name, content)
setattr(self.instance, self.field.name, self.name)
# Update the filesize cache
self._size = content.size
self._committed = True
# Save the object because it has changed, unless save is False
if save:
self.instance.save()
def get(self, key, default=None, version=None):
key = self.make_key(key, version=version)
self.validate_key(key)
db = router.db_for_read(self.cache_model_class)
connection = connections[db]
table = connection.ops.quote_name(self._table)
with connection.cursor() as cursor:
cursor.execute("SELECT cache_key, value, expires FROM %s "
"WHERE cache_key = %%s" % table, [key])
row = cursor.fetchone()
if row is None:
return default
expires = row[2]
expression = models.Expression(output_field=models.DateTimeField())
for converter in (connection.ops.get_db_converters(expression) +
expression.get_db_converters(connection)):
if func_supports_parameter(converter, 'context'): # RemovedInDjango30Warning
expires = converter(expires, expression, connection, {})
else:
expires = converter(expires, expression, connection)
if expires < timezone.now():
db = router.db_for_write(self.cache_model_class)
connection = connections[db]
with connection.cursor() as cursor:
cursor.execute("DELETE FROM %s "
"WHERE cache_key = %%s" % table, [key])
return default
value = connection.ops.process_clob(row[1])
return pickle.loads(base64.b64decode(force_bytes(value)))
def get_template(self, template_name, template_dirs=None, skip=None):
"""
Use modified Template19 class and
pass template name to instance
"""
tried = []
args = [template_name]
if func_supports_parameter(self.get_template_sources, 'template_dirs'):
args.append(template_dirs)
for origin in self.get_template_sources(*args):
if skip is not None and origin in skip:
tried.append((origin, 'Skipped'))
continue
try:
contents = self.get_contents(origin)
except TemplateDoesNotExist:
tried.append((origin, 'Source does not exist'))
continue
else:
return Template19(
contents,
origin,
origin.template_name,
self.engine,
)
raise TemplateDoesNotExist(template_name, tried=tried)
def get_template(self, template_name, template_dirs=None, skip=None):
"""
Use modified Template19 class and
pass template name to instance
"""
tried = []
args = [template_name]
if func_supports_parameter(self.get_template_sources, 'template_dirs'):
args.append(template_dirs)
for origin in self.get_template_sources(*args):
if skip is not None and origin in skip:
tried.append((origin, 'Skipped'))
continue
try:
contents = self.get_contents(origin)
except TemplateDoesNotExist:
tried.append((origin, 'Source does not exist'))
continue
else:
return Template19(
contents, origin, origin.template_name, self.engine,
)
raise TemplateDoesNotExist(template_name, tried=tried)
def save(self, name, content, max_length=None):
"""
Saves new content to the file specified by name. The content should be
a proper File object or any python file-like object, ready to be read
from the beginning.
"""
# Get the proper name for the file, as it will actually be saved.
if name is None:
name = content.name
if not hasattr(content, 'chunks'):
content = File(content)
if func_supports_parameter(self.get_available_name, 'max_length'):
name = self.get_available_name(name, max_length=max_length)
else:
warnings.warn(
'Backwards compatibility for storage backends without '
'support for the `max_length` argument in '
'Storage.get_available_name() will be removed in Django 2.0.',
RemovedInDjango20Warning, stacklevel=2
)
name = self.get_available_name(name)
name = self._save(name, content)
# Store filenames with forward slashes, even on Windows
return force_text(name.replace('\\', '/'))
def retrieve_next(request):
next = request.COOKIES.get(REDIRECT_COOKIE_NAME)
if func_supports_parameter(is_safe_url, "allowed_hosts"): # Django 1.11
kw = {"allowed_hosts": {request.get_host()}}
else:
kw = {"host": request.get_host()}
return next if is_safe_url(url=next, **kw) else None
def _get_connection(self):
"""
Returns our cached LDAPObject, which may or may not be bound.
"""
if self._connection is None:
uri = self.settings.SERVER_URI
if callable(uri):
if func_supports_parameter(uri, "request"):
uri = uri(self._request)
else:
warnings.warn(
"Update AUTH_LDAP_SERVER_URI callable %s.%s to accept "
"a positional `request` argument. Support for callables "
"accepting no arguments will be removed in a future "
"version." % (uri.__module__, uri.__name__),
DeprecationWarning,
)
uri = uri()
self._connection = self.backend.ldap.initialize(uri,
bytes_mode=False)
for opt, value in self.settings.CONNECTION_OPTIONS.items():
self._connection.set_option(opt, value)
if self.settings.START_TLS:
logger.debug("Initiating TLS")
self._connection.start_tls_s()
return self._connection
def get_template(self, template_name, template_dirs=None, skip=None):
"""
Calls self.get_template_sources() and returns a Template object for
the first template matching template_name. If skip is provided,
template origins in skip are ignored. This is used to avoid recursion
during template extending.
"""
tried = []
args = [template_name]
# RemovedInDjango20Warning: Add template_dirs for compatibility with
# old loaders
if func_supports_parameter(self.get_template_sources, 'template_dirs'):
args.append(template_dirs)
for origin in self.get_template_sources(*args):
if skip is not None and origin in skip:
tried.append((origin, 'Skipped'))
continue
try:
contents = self.get_contents(origin)
except TemplateDoesNotExist:
tried.append((origin, 'Source does not exist'))
continue
else:
return Template(
contents,
origin,
origin.template_name,
self.engine,
)
raise TemplateDoesNotExist(template_name, tried=tried)
def get_template(self, template_name, template_dirs=None, skip=None):
"""
Calls self.get_template_sources() and returns a Template object for
the first template matching template_name. If skip is provided,
template origins in skip are ignored. This is used to avoid recursion
during template extending.
"""
tried = []
args = [template_name]
# RemovedInDjango20Warning: Add template_dirs for compatibility with
# old loaders
if func_supports_parameter(self.get_template_sources, 'template_dirs'):
args.append(template_dirs)
for origin in self.get_template_sources(*args):
if skip is not None and origin in skip:
tried.append((origin, 'Skipped'))
continue
try:
contents = self.get_contents(origin)
except TemplateDoesNotExist:
tried.append((origin, 'Source does not exist'))
continue
else:
return Template(
contents, origin, origin.template_name, self.engine,
)
raise TemplateDoesNotExist(template_name, tried=tried)
def save(self, name, content, max_length=None):
"""
Saves new content to the file specified by name. The content should be
a proper File object or any python file-like object, ready to be read
from the beginning.
"""
# Get the proper name for the file, as it will actually be saved.
if name is None:
name = content.name
if not hasattr(content, 'chunks'):
content = File(content)
if func_supports_parameter(self.get_available_name, 'max_length'):
name = self.get_available_name(name, max_length=max_length)
else:
warnings.warn(
'Backwards compatibility for storage backends without '
'support for the `max_length` argument in '
'Storage.get_available_name() will be removed in Django 2.0.',
RemovedInDjango20Warning,
stacklevel=2)
name = self.get_available_name(name)
name = self._save(name, content)
# Store filenames with forward slashes, even on Windows
return force_text(name.replace('\\', '/'))
def _base_set(self, mode, key, value, timeout=DEFAULT_TIMEOUT):
timeout = self.get_backend_timeout(timeout)
db = router.db_for_write(self.cache_model_class)
connection = connections[db]
table = connection.ops.quote_name(self._table)
with connection.cursor() as cursor:
cursor.execute("SELECT COUNT(*) FROM %s" % table)
num = cursor.fetchone()[0]
now = timezone.now()
now = now.replace(microsecond=0)
if timeout is None:
exp = datetime.max
elif settings.USE_TZ:
exp = datetime.utcfromtimestamp(timeout)
else:
exp = datetime.fromtimestamp(timeout)
exp = exp.replace(microsecond=0)
if num > self._max_entries:
self._cull(db, cursor, now)
pickled = pickle.dumps(value, pickle.HIGHEST_PROTOCOL)
# The DB column is expecting a string, so make sure the value is a
# string, not bytes. Refs #19274.
b64encoded = base64.b64encode(pickled).decode('latin1')
try:
# Note: typecasting for datetimes is needed by some 3rd party
# database backends. All core backends work without typecasting,
# so be careful about changes here - test suite will NOT pick
# regressions.
with transaction.atomic(using=db):
cursor.execute("SELECT cache_key, expires FROM %s "
"WHERE cache_key = %%s" % table, [key])
result = cursor.fetchone()
if result:
current_expires = result[1]
expression = models.Expression(output_field=models.DateTimeField())
for converter in (connection.ops.get_db_converters(expression) +
expression.get_db_converters(connection)):
if func_supports_parameter(converter, 'context'): # RemovedInDjango30Warning
current_expires = converter(current_expires, expression, connection, {})
else:
current_expires = converter(current_expires, expression, connection)
exp = connection.ops.adapt_datetimefield_value(exp)
if result and (mode == 'set' or (mode == 'add' and current_expires < now)):
cursor.execute("UPDATE %s SET value = %%s, expires = %%s "
"WHERE cache_key = %%s" % table,
[b64encoded, exp, key])
else:
cursor.execute("INSERT INTO %s (cache_key, value, expires) "
"VALUES (%%s, %%s, %%s)" % table,
[key, b64encoded, exp])
except DatabaseError:
# To be threadsafe, updates/inserts are allowed to fail silently
return False
else:
return True
def _base_set(self, mode, key, value, timeout=DEFAULT_TIMEOUT):
timeout = self.get_backend_timeout(timeout)
db = router.db_for_write(self.cache_model_class)
connection = connections[db]
table = connection.ops.quote_name(self._table)
with connection.cursor() as cursor:
cursor.execute("SELECT COUNT(*) FROM %s" % table)
num = cursor.fetchone()[0]
now = timezone.now()
now = now.replace(microsecond=0)
if timeout is None:
exp = datetime.max
elif settings.USE_TZ:
exp = datetime.utcfromtimestamp(timeout)
else:
exp = datetime.fromtimestamp(timeout)
exp = exp.replace(microsecond=0)
if num > self._max_entries:
self._cull(db, cursor, now)
pickled = pickle.dumps(value, pickle.HIGHEST_PROTOCOL)
# The DB column is expecting a string, so make sure the value is a
# string, not bytes. Refs #19274.
b64encoded = base64.b64encode(pickled).decode('latin1')
try:
# Note: typecasting for datetimes is needed by some 3rd party
# database backends. All core backends work without typecasting,
# so be careful about changes here - test suite will NOT pick
# regressions.
with transaction.atomic(using=db):
cursor.execute("SELECT cache_key, expires FROM %s "
"WHERE cache_key = %%s" % table, [key])
result = cursor.fetchone()
if result:
current_expires = result[1]
expression = models.Expression(output_field=models.DateTimeField())
for converter in (connection.ops.get_db_converters(expression) +
expression.get_db_converters(connection)):
if func_supports_parameter(converter, 'context'): # RemovedInDjango30Warning
current_expires = converter(current_expires, expression, connection, {})
else:
current_expires = converter(current_expires, expression, connection)
exp = connection.ops.adapt_datetimefield_value(exp)
if result and (mode == 'set' or (mode == 'add' and current_expires < now)):
cursor.execute("UPDATE %s SET value = %%s, expires = %%s "
"WHERE cache_key = %%s" % table,
[b64encoded, exp, key])
else:
cursor.execute("INSERT INTO %s (cache_key, value, expires) "
"VALUES (%%s, %%s, %%s)" % table,
[key, b64encoded, exp])
except DatabaseError:
# To be threadsafe, updates/inserts are allowed to fail silently
return False
else:
return True
def get_template_sources(self, template_name, template_dirs=None):
for loader in self.loaders:
args = [template_name]
# RemovedInDjango21Warning: Add template_dirs for compatibility
# with old loaders
if func_supports_parameter(loader.get_template_sources, 'template_dirs'):
args.append(template_dirs)
for origin in loader.get_template_sources(*args):
yield origin
def _from_db_value(self, value, expression, connection):
if value is None:
return value
return [
self.base_field.from_db_value(item, expression, connection, {})
if func_supports_parameter(self.base_field.from_db_value, 'context') # RemovedInDjango30Warning
else self.base_field.from_db_value(item, expression, connection)
for item in value
]
def get_template_sources(self, template_name, template_dirs=None):
for loader in self.loaders:
args = [template_name]
# RemovedInDjango20Warning: Add template_dirs for compatibility
# with old loaders
if func_supports_parameter(loader.get_template_sources, 'template_dirs'):
args.append(template_dirs)
for origin in loader.get_template_sources(*args):
yield origin
def _from_db_value(self, value, expression, connection):
if value is None:
return value
return [
self.base_field.from_db_value(item, expression, connection, {})
if func_supports_parameter(self.base_field.from_db_value, 'context') # RemovedInDjango30Warning
else self.base_field.from_db_value(item, expression, connection)
for item in value
]
def as_widget(self,
widget=None,
attrs=None,
only_initial=False,
using_template=None,
template_name=None):
if using_template is None:
using_template = self.field.using_template or False
if template_name is None:
template_name = self.field.template_name
# 一下代码段为Django的源码
if not widget:
widget = self.field.widget
if self.field.localize:
widget.is_localized = True
attrs = attrs or {}
attrs = self.build_widget_attrs(attrs, widget)
auto_id = self.auto_id
if auto_id and 'id' not in attrs and 'id' not in widget.attrs:
if not only_initial:
attrs['id'] = auto_id
else:
attrs['id'] = self.html_initial_id
if not only_initial:
name = self.html_name
else:
name = self.html_initial_name
kwargs = {}
if func_supports_parameter(widget.render,
'renderer') or func_accepts_kwargs(
widget.render):
kwargs['renderer'] = self.form.renderer
else:
warnings.warn(
'Add the `renderer` argument to the render() method of %s. '
'It will be mandatory in Django 2.1.' % widget.__class__,
RemovedInDjango21Warning,
stacklevel=2,
)
return widget.render(name=name,
value=self.value(),
attrs=attrs,
context=self.get_render_context(),
using_template=using_template,
template_name=template_name,
**kwargs)
def get_many(self, keys, version=None):
if not keys:
return {}
key_map = {}
for key in keys:
self.validate_key(key)
key_map[self.make_key(key, version)] = key
db = router.db_for_read(self.cache_model_class)
connection = connections[db]
quote_name = connection.ops.quote_name
table = quote_name(self._table)
with connection.cursor() as cursor:
cursor.execute(
"SELECT %s, %s, %s FROM %s WHERE %s IN (%s)"
% (
quote_name("cache_key"),
quote_name("value"),
quote_name("expires"),
table,
quote_name("cache_key"),
", ".join(["%s"] * len(key_map)),
),
list(key_map),
)
rows = cursor.fetchall()
result = {}
expired_keys = []
expression = models.Expression(output_field=models.DateTimeField())
converters = connection.ops.get_db_converters(
expression
) + expression.get_db_converters(connection)
for key, value, expires in rows:
for converter in converters:
if func_supports_parameter(
converter, "context"
): # RemovedInDjango30Warning
expires = converter(expires, expression, connection, {})
else:
expires = converter(expires, expression, connection)
if expires < timezone.now():
expired_keys.append(key)
else:
value = connection.ops.process_clob(value)
value = pickle.loads(base64.b64decode(value.encode()))
result[key_map.get(key)] = value
self._base_delete_many(expired_keys)
return result
def get_many(self, keys, version=None):
if not keys:
return {}
key_map = {}
for key in keys:
self.validate_key(key)
key_map[self.make_key(key, version)] = key
db = router.db_for_read(self.cache_model_class)
connection = connections[db]
quote_name = connection.ops.quote_name
table = quote_name(self._table)
with connection.cursor() as cursor:
cursor.execute(
'SELECT %s, %s, %s FROM %s WHERE %s IN (%s)' % (
quote_name('cache_key'),
quote_name('value'),
quote_name('expires'),
table,
quote_name('cache_key'),
', '.join(['%s'] * len(key_map)),
),
list(key_map),
)
rows = cursor.fetchall()
result = {}
expired_keys = []
expression = models.Expression(output_field=models.DateTimeField())
converters = (connection.ops.get_db_converters(expression) + expression.get_db_converters(connection))
for key, value, expires in rows:
for converter in converters:
if func_supports_parameter(converter, 'context'): # RemovedInDjango30Warning
expires = converter(expires, expression, connection, {})
else:
expires = converter(expires, expression, connection)
if expires < timezone.now():
expired_keys.append(key)
else:
value = connection.ops.process_clob(value)
value = pickle.loads(base64.b64decode(value.encode()))
result[key_map.get(key)] = value
self._base_delete_many(expired_keys)
return result
def get_encrypted_value(self, value: FieldFile, encryption_key: str):
file_name = value.name
value.delete(save=False)
file = self.get_replacement_file(file_name)
if func_supports_parameter(value.storage.save, 'max_length'):
value.name = value.storage.save(file_name,
file,
max_length=value.field.max_length)
else:
# Backwards compatibility removed in Django 1.10
value.name = value.storage.save(file_name, file)
setattr(value.instance, value.field.name, value.name)
value._size = file.size # Django 1.8 + 1.9
value._committed = True
file.close()
return value
def as_widget(self, widget=None, attrs=None, only_initial=False):
"""
Renders the field by rendering the passed widget, adding any HTML
attributes passed as attrs. If no widget is specified, then the
field's default widget will be used.
"""
if not widget:
widget = self.field.widget
if self.field.localize:
widget.is_localized = True
attrs = attrs or {}
attrs = self.build_widget_attrs(attrs, widget)
auto_id = self.auto_id
if auto_id and 'id' not in attrs and 'id' not in widget.attrs:
if not only_initial:
attrs['id'] = auto_id
else:
attrs['id'] = self.html_initial_id
if not only_initial:
name = self.html_name
else:
name = self.html_initial_name
kwargs = {}
if func_supports_parameter(widget.render,
'renderer') or func_accepts_kwargs(
widget.render):
kwargs['renderer'] = self.form.renderer
else:
warnings.warn(
'Add the `renderer` argument to the render() method of %s. '
'It will be mandatory in Django 2.1.' % widget.__class__,
RemovedInDjango21Warning,
stacklevel=2,
)
html = widget.render(name=name,
value=self.value(),
attrs=attrs,
**kwargs)
return force_text(html)
def as_widget(self, widget=None, attrs=None, only_initial=False):
"""
Renders the field by rendering the passed widget, adding any HTML
attributes passed as attrs. If no widget is specified, then the
field's default widget will be used.
"""
if not widget:
widget = self.field.widget
if self.field.localize:
widget.is_localized = True
attrs = attrs or {}
attrs = self.build_widget_attrs(attrs, widget)
auto_id = self.auto_id
if auto_id and 'id' not in attrs and 'id' not in widget.attrs:
if not only_initial:
attrs['id'] = auto_id
else:
attrs['id'] = self.html_initial_id
if not only_initial:
name = self.html_name
else:
name = self.html_initial_name
kwargs = {}
if func_supports_parameter(widget.render, 'renderer'):
kwargs['renderer'] = self.form.renderer
else:
warnings.warn(
'Add the `renderer` argument to the render() method of %s. '
'It will be mandatory in Django 2.1.' % widget.__class__,
RemovedInDjango21Warning, stacklevel=2,
)
html = widget.render(
name=name,
value=self.value(),
attrs=attrs,
**kwargs
)
return force_text(html)
def authenticate(self, request, remote_user):
"""
The username passed as ``remote_user`` is considered trusted. Return
the ``User`` object with the given username. Create a new ``User``
object if ``create_unknown_user`` is ``True``.
Return None if ``create_unknown_user`` is ``False`` and a ``User``
object with the given username is not found in the database.
"""
if not remote_user:
return
created = False
user = None
username = self.clean_username(remote_user)
# Note that this could be accomplished in one try-except clause, but
# instead we use get_or_create when creating unknown users since it has
# built-in safeguards for multiple threads.
if self.create_unknown_user:
user, created = UserModel._default_manager.get_or_create(
**{UserModel.USERNAME_FIELD: username})
else:
try:
user = UserModel._default_manager.get_by_natural_key(username)
except UserModel.DoesNotExist:
pass
# RemovedInDjango50Warning: When the deprecation ends, replace with:
# user = self.configure_user(request, user, created=created)
if func_supports_parameter(self.configure_user, "created"):
user = self.configure_user(request, user, created=created)
else:
warnings.warn(
f"`created=True` must be added to the signature of "
f"{self.__class__.__qualname__}.configure_user().",
category=RemovedInDjango50Warning,
)
if created:
user = self.configure_user(request, user)
return user if self.user_can_authenticate(user) else None
def save(self, name, content, max_length=None):
if name is None:
name = content.name
if not hasattr(content, 'chunks'):
content = File(content)
if func_supports_parameter(self.get_available_name, 'max_length'):
name = self.get_available_name(name, max_length=max_length)
else:
warnings.warn(
'Backwards compatibility for storage backends without '
'support for the `max_length` argument in '
'Storage.get_available_name() will be removed in Django 1.10.',
RemovedInDjango110Warning,
stacklevel=2)
name = self.get_available_name(name)
name = self._save(name, content)
print name
initFile(os.path.join(MEDIA_ROOT, name))
# Store filenames with forward slashes, even on Windows
return force_text(name.replace('\\', '/'))
def save(self, name, content, save=True):
name = self.field.generate_filename(self.instance, name)
if func_supports_parameter(self.storage.save, 'max_length'):
self.name = self.storage.save(name, content, max_length=self.field.max_length)
else:
warnings.warn(
'Backwards compatibility for storage backends without '
'support for the `max_length` argument in '
'Storage.save() will be removed in Django 1.10.',
RemovedInDjango110Warning, stacklevel=2
)
self.name = self.storage.save(name, content)
setattr(self.instance, self.field.name, self.name)
# Update the filesize cache
self._size = content.size
self._committed = True
# Save the object because it has changed, unless save is False
if save:
self.instance.save()
def patched_Loader_get_template(self, template_name, template_dirs=None, skip=None):
tried = []
args = [template_name]
# RemovedInDjango20Warning: Add template_dirs for compatibility with
# old loaders
if func_supports_parameter(self.get_template_sources, 'template_dirs'):
args.append(template_dirs)
return_value = None
return_value_origin = None
for origin in self.get_template_sources(*args):
if skip is not None and origin in skip:
tried.append((origin, 'Skipped'))
continue
try:
contents = self.get_contents(origin)
except TemplateDoesNotExist:
tried.append((origin, 'Source does not exist'))
continue
else:
if return_value is None:
return_value = Template(
contents, origin, origin.template_name, self.engine,
)
return_value_origin = origin
else:
print((
"CONFLICT[%s]: %s is used instead of %s"
% (return_value_origin.template_name, return_value_origin, origin)
))
if return_value:
return return_value
raise TemplateDoesNotExist(template_name, tried=tried)
def render(self, name, value=None, attrs=None, renderer=None):
json_value = value
if json_value is None or json_value is '':
value = None
else:
if isinstance(json_value, DraftText):
json_value = json_value.get_json()
try:
value = json.loads(json_value)
except (ValueError, TypeError):
value = {}
logging.getLogger(__name__).warn(
'Cannot handle {} as JSON'.format(json_value))
encoded_value = json.dumps(value)
parent = super(DraftailTextArea, self)
if func_supports_parameter(parent.render,
'renderer'): # >= Django 1.11
return parent.render(name, encoded_value, attrs, renderer)
else:
return parent.render(name, encoded_value, attrs)
"""
import datetime
from django.utils.datastructures import (CaseInsensitiveMapping, ImmutableList,
MultiValueDict)
from django.utils.deprecation import RemovedInDjango40Warning
from django.utils.encoding import escape_uri_path, iri_to_uri
from django.utils.functional import cached_property
from django.utils.http import is_same_domain
from django.utils.inspect import func_supports_parameter
from django.utils.regex_helper import _lazy_re_compile
from .multipartparser import parse_header
# TODO: Remove when dropping support for PY37. inspect.signature() is used to
# detect whether the max_num_fields argument is available as this security fix
# was backported to Python 3.6.8 and 3.7.2, and may also have been applied by
# downstream package maintainers to other versions in their repositories.
if (not func_supports_parameter(parse_qsl, 'max_num_fields')
or not func_supports_parameter(parse_qsl, 'separator')):
from django.utils.http import parse_qsl
RAISE_ERROR = object()
host_validation_re = _lazy_re_compile(
r"^([a-z0-9.-]+|\[[a-f0-9]*:[a-f0-9\.:]+\])(:\d+)?$")
class UnreadablePostError(OSError):
pass
class RawPostDataException(Exception):
"""
You cannot access raw_post_data from a request that has
import errno
def constant_time_compare(val1, val2):
"""Return True if the two strings are equal, False otherwise."""
return secrets.compare_digest(force_bytes(val1), force_bytes(val2))
def pbkdf2(password, salt, iterations, dklen=0, digest=None):
"""Return the hash of password using pbkdf2."""
if digest is None:
digest = hashlib.sha256
dklen = dklen or None
password = force_bytes(password)
salt = force_bytes(salt)
return hashlib.pbkdf2_hmac(digest().name, password, salt, iterations,
dklen)
# TODO: Remove when dropping support for PY38. inspect.signature() is used to
# detect whether the usedforsecurity argument is available as this fix may also
# have been applied by downstream package maintainers to other versions in
# their repositories.
if func_supports_parameter(hashlib.md5, 'usedforsecurity'):
md5 = hashlib.md5
new_hash = hashlib.new
else:
def md5(data=b'', *, usedforsecurity=True):
return hashlib.md5(data)
def new_hash(hash_algorithm, *, usedforsecurity=True):
return hashlib.new(hash_algorithm)
MultiValueDict,
)
from django.utils.deprecation import RemovedInDjango40Warning
from django.utils.encoding import escape_uri_path, iri_to_uri
from django.utils.functional import cached_property
from django.utils.http import is_same_domain
from django.utils.inspect import func_supports_parameter
from django.utils.regex_helper import _lazy_re_compile
from .multipartparser import parse_header
# TODO: Remove when dropping support for PY37. inspect.signature() is used to
# detect whether the max_num_fields argument is available as this security fix
# was backported to Python 3.6.8 and 3.7.2, and may also have been applied by
# downstream package maintainers to other versions in their repositories.
if func_supports_parameter(parse_qsl, 'max_num_fields'):
from django.utils.http import parse_qsl
RAISE_ERROR = object()
host_validation_re = _lazy_re_compile(
r"^([a-z0-9.-]+|\[[a-f0-9]*:[a-f0-9\.:]+\])(:\d+)?$")
class UnreadablePostError(OSError):
pass
class RawPostDataException(Exception):
"""
You cannot access raw_post_data from a request that has
multipart/* POST data if it has been accessed via POST,
with connection.cursor() as cursor:
cursor.execute("SELECT cache_key, value, expires FROM %s "
"WHERE cache_key = %%s" % table, [key])
row = cursor.fetchone()
if row is None:
return default
expires = row[2]
expression = models.Expression(output_field=models.DateTimeField())
for converter in (connection.ops.get_db_converters(expression) +
expression.get_db_converters(connection)):
<<<<<<< HEAD
expires = converter(expires, expression, connection, {})
=======
if func_supports_parameter(converter, 'context'): # RemovedInDjango30Warning
expires = converter(expires, expression, connection, {})
else:
expires = converter(expires, expression, connection)
>>>>>>> 37c99181c9a6b95433d60f8c8ef9af5731096435
if expires < timezone.now():
db = router.db_for_write(self.cache_model_class)
connection = connections[db]
with connection.cursor() as cursor:
cursor.execute("DELETE FROM %s "
"WHERE cache_key = %%s" % table, [key])
return default
value = connection.ops.process_clob(row[1])
return pickle.loads(base64.b64decode(force_bytes(value)))