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Diffstat (limited to 'oauth2client/util.py')
| -rw-r--r-- | oauth2client/util.py | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/oauth2client/util.py b/oauth2client/util.py deleted file mode 100644 index e3ba62b..0000000 --- a/oauth2client/util.py +++ /dev/null @@ -1,206 +0,0 @@ -# Copyright 2014 Google Inc. All rights reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -"""Common utility library.""" - -import functools -import inspect -import logging - -import six -from six.moves import urllib - - -__author__ = [ - 'rafek@google.com (Rafe Kaplan)', - 'guido@google.com (Guido van Rossum)', -] - -__all__ = [ - 'positional', - 'POSITIONAL_WARNING', - 'POSITIONAL_EXCEPTION', - 'POSITIONAL_IGNORE', -] - -logger = logging.getLogger(__name__) - -POSITIONAL_WARNING = 'WARNING' -POSITIONAL_EXCEPTION = 'EXCEPTION' -POSITIONAL_IGNORE = 'IGNORE' -POSITIONAL_SET = frozenset([POSITIONAL_WARNING, POSITIONAL_EXCEPTION, - POSITIONAL_IGNORE]) - -positional_parameters_enforcement = POSITIONAL_WARNING - - -def positional(max_positional_args): - """A decorator to declare that only the first N arguments my be positional. - - This decorator makes it easy to support Python 3 style keyword-only - parameters. For example, in Python 3 it is possible to write:: - - def fn(pos1, *, kwonly1=None, kwonly1=None): - ... - - All named parameters after ``*`` must be a keyword:: - - fn(10, 'kw1', 'kw2') # Raises exception. - fn(10, kwonly1='kw1') # Ok. - - Example - ^^^^^^^ - - To define a function like above, do:: - - @positional(1) - def fn(pos1, kwonly1=None, kwonly2=None): - ... - - If no default value is provided to a keyword argument, it becomes a - required keyword argument:: - - @positional(0) - def fn(required_kw): - ... - - This must be called with the keyword parameter:: - - fn() # Raises exception. - fn(10) # Raises exception. - fn(required_kw=10) # Ok. - - When defining instance or class methods always remember to account for - ``self`` and ``cls``:: - - class MyClass(object): - - @positional(2) - def my_method(self, pos1, kwonly1=None): - ... - - @classmethod - @positional(2) - def my_method(cls, pos1, kwonly1=None): - ... - - The positional decorator behavior is controlled by - ``util.positional_parameters_enforcement``, which may be set to - ``POSITIONAL_EXCEPTION``, ``POSITIONAL_WARNING`` or - ``POSITIONAL_IGNORE`` to raise an exception, log a warning, or do - nothing, respectively, if a declaration is violated. - - Args: - max_positional_arguments: Maximum number of positional arguments. All - parameters after the this index must be - keyword only. - - Returns: - A decorator that prevents using arguments after max_positional_args - from being used as positional parameters. - - Raises: - TypeError: if a key-word only argument is provided as a positional - parameter, but only if - util.positional_parameters_enforcement is set to - POSITIONAL_EXCEPTION. - """ - - def positional_decorator(wrapped): - @functools.wraps(wrapped) - def positional_wrapper(*args, **kwargs): - if len(args) > max_positional_args: - plural_s = '' - if max_positional_args != 1: - plural_s = 's' - message = ('{function}() takes at most {args_max} positional ' - 'argument{plural} ({args_given} given)'.format( - function=wrapped.__name__, - args_max=max_positional_args, - args_given=len(args), - plural=plural_s)) - if positional_parameters_enforcement == POSITIONAL_EXCEPTION: - raise TypeError(message) - elif positional_parameters_enforcement == POSITIONAL_WARNING: - logger.warning(message) - return wrapped(*args, **kwargs) - return positional_wrapper - - if isinstance(max_positional_args, six.integer_types): - return positional_decorator - else: - args, _, _, defaults = inspect.getargspec(max_positional_args) - return positional(len(args) - len(defaults))(max_positional_args) - - -def scopes_to_string(scopes): - """Converts scope value to a string. - - If scopes is a string then it is simply passed through. If scopes is an - iterable then a string is returned that is all the individual scopes - concatenated with spaces. - - Args: - scopes: string or iterable of strings, the scopes. - - Returns: - The scopes formatted as a single string. - """ - if isinstance(scopes, six.string_types): - return scopes - else: - return ' '.join(scopes) - - -def string_to_scopes(scopes): - """Converts stringifed scope value to a list. - - If scopes is a list then it is simply passed through. If scopes is an - string then a list of each individual scope is returned. - - Args: - scopes: a string or iterable of strings, the scopes. - - Returns: - The scopes in a list. - """ - if not scopes: - return [] - if isinstance(scopes, six.string_types): - return scopes.split(' ') - else: - return scopes - - -def _add_query_parameter(url, name, value): - """Adds a query parameter to a url. - - Replaces the current value if it already exists in the URL. - - Args: - url: string, url to add the query parameter to. - name: string, query parameter name. - value: string, query parameter value. - - Returns: - Updated query parameter. Does not update the url if value is None. - """ - if value is None: - return url - else: - parsed = list(urllib.parse.urlparse(url)) - q = dict(urllib.parse.parse_qsl(parsed[4])) - q[name] = value - parsed[4] = urllib.parse.urlencode(q) - return urllib.parse.urlunparse(parsed) |