82 lines
3.7 KiB
Ruby
82 lines
3.7 KiB
Ruby
# Copyright 2015, Google Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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require "googleauth/compute_engine"
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require "googleauth/default_credentials"
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module Google
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# Module Auth provides classes that provide Google-specific authorization
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# used to access Google APIs.
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module Auth
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NOT_FOUND_ERROR = """~ERROR_MESSAGE.freeze
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Could not load the default credentials. Browse to
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https://developers.google.com/accounts/docs/application-default-credentials
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for more information
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ERROR_MESSAGE"""
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module_function
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# Obtains the default credentials implementation to use in this
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# environment.
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#
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# Use this to obtain the Application Default Credentials for accessing
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# Google APIs. Application Default Credentials are described in detail
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# at https://cloud.google.com/docs/authentication/production.
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#
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# If supplied, scope is used to create the credentials instance, when it can
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# be applied. E.g, on google compute engine and for user credentials the
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# scope is ignored.
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#
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# @param scope [string|array|nil] the scope(s) to access
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# @param options [Hash] Connection options. These may be used to configure
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# the `Faraday::Connection` used for outgoing HTTP requests. For
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# example, if a connection proxy must be used in the current network,
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# you may provide a connection with with the needed proxy options.
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# The following keys are recognized:
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# * `:default_connection` The connection object to use for token
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# refresh requests.
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# * `:connection_builder` A `Proc` that creates and returns a
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# connection to use for token refresh requests.
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# * `:connection` The connection to use to determine whether GCE
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# metadata credentials are available.
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def get_application_default scope = nil, options = {}
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creds = DefaultCredentials.from_env(scope, options) ||
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DefaultCredentials.from_well_known_path(scope, options) ||
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DefaultCredentials.from_system_default_path(scope, options)
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return creds unless creds.nil?
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unless GCECredentials.on_gce? options
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# Clear cache of the result of GCECredentials.on_gce?
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GCECredentials.unmemoize_all
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raise NOT_FOUND_ERROR
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end
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GCECredentials.new scope: scope
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end
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end
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end
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