Update checked in version of gsutil to version 4.6

third_party/boto/boto/core/credentials.py

Index: third_party/boto/boto/core/credentials.py
===================================================================
--- third_party/boto/boto/core/credentials.py	(revision 33376)
+++ third_party/boto/boto/core/credentials.py	(working copy)
@@ -1,154 +0,0 @@
-# Copyright (c) 2012 Mitch Garnaat http://garnaat.org/
-# Copyright (c) 2012 Amazon.com, Inc. or its affiliates.
-# All Rights Reserved
-#
-# Permission is hereby granted, free of charge, to any person obtaining a
-# copy of this software and associated documentation files (the
-# "Software"), to deal in the Software without restriction, including
-# without limitation the rights to use, copy, modify, merge, publish, dis-
-# tribute, sublicense, and/or sell copies of the Software, and to permit
-# persons to whom the Software is furnished to do so, subject to the fol-
-# lowing conditions:
-#
-# The above copyright notice and this permission notice shall be included
-# in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
-# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
-# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-import os
-from six.moves import configparser
-from boto.compat import json
-import requests
-
-
-class Credentials(object):
-    """
-    Holds the credentials needed to authenticate requests.  In addition
-    the Credential object knows how to search for credentials and how
-    to choose the right credentials when multiple credentials are found.
-    """
-
-    def __init__(self, access_key=None, secret_key=None, token=None):
-        self.access_key = access_key
-        self.secret_key = secret_key
-        self.token = token
-
-
-def _search_md(url='http://169.254.169.254/latest/meta-data/iam/'):
-    d = {}
-    try:
-        r = requests.get(url, timeout=.1)
-        if r.content:
-            fields = r.content.split('\n')
-            for field in fields:
-                if field.endswith('/'):
-                    d[field[0:-1]] = get_iam_role(url + field)
-                else:
-                    val = requests.get(url + field).content
-                    if val[0] == '{':
-                        val = json.loads(val)
-                    else:
-                        p = val.find('\n')
-                        if p > 0:
-                            val = r.content.split('\n')
-                    d[field] = val
-    except (requests.Timeout, requests.ConnectionError):
-        pass
-    return d
-
-
-def search_metadata(**kwargs):
-    credentials = None
-    metadata = _search_md()
-    # Assuming there's only one role on the instance profile.
-    if metadata:
-        metadata = metadata['iam']['security-credentials'].values()[0]
-        credentials = Credentials(metadata['AccessKeyId'],
-                                  metadata['SecretAccessKey'],
-                                  metadata['Token'])
-    return credentials
-
-
-def search_environment(**kwargs):
-    """
-    Search for credentials in explicit environment variables.
-    """
-    credentials = None
-    access_key = os.environ.get(kwargs['access_key_name'].upper(), None)
-    secret_key = os.environ.get(kwargs['secret_key_name'].upper(), None)
-    if access_key and secret_key:
-        credentials = Credentials(access_key, secret_key)
-    return credentials
-
-
-def search_file(**kwargs):
-    """
-    If the 'AWS_CREDENTIAL_FILE' environment variable exists, parse that
-    file for credentials.
-    """
-    credentials = None
-    if 'AWS_CREDENTIAL_FILE' in os.environ:
-        persona = kwargs.get('persona', 'default')
-        access_key_name = kwargs['access_key_name']
-        secret_key_name = kwargs['secret_key_name']
-        access_key = secret_key = None
-        path = os.getenv('AWS_CREDENTIAL_FILE')
-        path = os.path.expandvars(path)
-        path = os.path.expanduser(path)
-        cp = configparser.RawConfigParser()
-        cp.read(path)
-        if not cp.has_section(persona):
-            raise ValueError('Persona: %s not found' % persona)
-        if cp.has_option(persona, access_key_name):
-            access_key = cp.get(persona, access_key_name)
-        else:
-            access_key = None
-        if cp.has_option(persona, secret_key_name):
-            secret_key = cp.get(persona, secret_key_name)
-        else:
-            secret_key = None
-        if access_key and secret_key:
-            credentials = Credentials(access_key, secret_key)
-    return credentials
-
-
-def search_boto_config(**kwargs):
-    """
-    Look for credentials in boto config file.
-    """
-    credentials = access_key = secret_key = None
-    if 'BOTO_CONFIG' in os.environ:
-        paths = [os.environ['BOTO_CONFIG']]
-    else:
-        paths = ['/etc/boto.cfg', '~/.boto']
-    paths = [os.path.expandvars(p) for p in paths]
-    paths = [os.path.expanduser(p) for p in paths]
-    cp = configparser.RawConfigParser()
-    cp.read(paths)
-    if cp.has_section('Credentials'):
-        access_key = cp.get('Credentials', 'aws_access_key_id')
-        secret_key = cp.get('Credentials', 'aws_secret_access_key')
-    if access_key and secret_key:
-        credentials = Credentials(access_key, secret_key)
-    return credentials
-
-AllCredentialFunctions = [search_environment,
-                          search_file,
-                          search_boto_config,
-                          search_metadata]
-
-
-def get_credentials(persona='default'):
-    for cred_fn in AllCredentialFunctions:
-        credentials = cred_fn(persona=persona,
-                              access_key_name='access_key',
-                              secret_key_name='secret_key')
-        if credentials:
-            break
-    return credentials