95 lines
3.1 KiB
Ruby
95 lines
3.1 KiB
Ruby
# Copyright 2016 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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require 'googleauth'
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require 'googleauth/stores/file_token_store'
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require 'fileutils'
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require 'thor'
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require 'os'
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# Base command line module for samples. Provides authorization support,
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# either using application default credentials or user authorization
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# depending on the use case.
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class BaseCli < Thor
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include Thor::Actions
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OOB_URI = 'urn:ietf:wg:oauth:2.0:oob'
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class_option :user, :type => :string
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class_option :api_key, :type => :string
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no_commands do
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# Returns the path to the client_secrets.json file.
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def client_secrets_path
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return ENV['GOOGLE_CLIENT_SECRETS'] if ENV.has_key?('GOOGLE_CLIENT_SECRETS')
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return well_known_path_for('client_secrets.json')
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end
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# Returns the path to the token store.
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def token_store_path
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return ENV['GOOGLE_CREDENTIAL_STORE'] if ENV.has_key?('GOOGLE_CREDENTIAL_STORE')
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return well_known_path_for('credentials.yaml')
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end
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# Builds a path to a file in $HOME/.config/google (or %APPDATA%/google,
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# on Windows)
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def well_known_path_for(file)
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if OS.windows?
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File.join(ENV['APPDATA'], 'google', file)
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else
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File.join(ENV['HOME'], '.config', 'google', file)
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end
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end
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# Returns application credentials for the given scope.
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def application_credentials_for(scope)
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Google::Auth.get_application_default(scope)
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end
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# Returns user credentials for the given scope. Requests authorization
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# if requrired.
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def user_credentials_for(scope)
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FileUtils.mkdir_p(File.dirname(token_store_path))
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if ENV['GOOGLE_CLIENT_ID']
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client_id = Google::Auth::ClientId.new(ENV['GOOGLE_CLIENT_ID'], ENV['GOOGLE_CLIENT_SECRET'])
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else
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client_id = Google::Auth::ClientId.from_file(client_secrets_path)
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end
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token_store = Google::Auth::Stores::FileTokenStore.new(:file => token_store_path)
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authorizer = Google::Auth::UserAuthorizer.new(client_id, scope, token_store)
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user_id = options[:user] || 'default'
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credentials = authorizer.get_credentials(user_id)
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if credentials.nil?
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url = authorizer.get_authorization_url(base_url: OOB_URI)
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say "Open the following URL in your browser and authorize the application."
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say url
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code = ask "Enter the authorization code:"
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credentials = authorizer.get_and_store_credentials_from_code(
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user_id: user_id, code: code, base_url: OOB_URI)
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end
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credentials
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end
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# Gets the API key of the client
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def api_key
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ENV['GOOGLE_API_KEY'] || options[:api_key]
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end
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end
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end
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