125 lines
4.2 KiB
Ruby
125 lines
4.2 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 "signet/oauth_2/client"
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module Signet
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# OAuth2 supports OAuth2 authentication.
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module OAuth2
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AUTH_METADATA_KEY = :authorization
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# Signet::OAuth2::Client creates an OAuth2 client
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#
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# This reopens Client to add #apply and #apply! methods which update a
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# hash with the fetched authentication token.
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class Client
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def configure_connection options
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@connection_info =
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options[:connection_builder] || options[:default_connection]
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self
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end
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# Updates a_hash updated with the authentication token
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def apply! a_hash, opts = {}
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# fetch the access token there is currently not one, or if the client
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# has expired
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token_type = defined?(target_audience) ? :id_token : :access_token
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fetch_access_token! opts if send(token_type).nil? || expires_within?(60)
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a_hash[AUTH_METADATA_KEY] = "Bearer #{send token_type}"
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end
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# Returns a clone of a_hash updated with the authentication token
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def apply a_hash, opts = {}
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a_copy = a_hash.clone
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apply! a_copy, opts
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a_copy
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end
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# Returns a reference to the #apply method, suitable for passing as
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# a closure
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def updater_proc
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lambda(&method(:apply))
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end
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def on_refresh &block
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@refresh_listeners = [] unless defined? @refresh_listeners
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@refresh_listeners << block
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end
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alias orig_fetch_access_token! fetch_access_token!
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def fetch_access_token! options = {}
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unless options[:connection]
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connection = build_default_connection
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options = options.merge connection: connection if connection
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end
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info = retry_with_error do
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orig_fetch_access_token! options
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end
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notify_refresh_listeners
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info
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end
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def notify_refresh_listeners
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listeners = defined?(@refresh_listeners) ? @refresh_listeners : []
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listeners.each do |block|
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block.call self
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end
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end
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def build_default_connection
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if !defined?(@connection_info)
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nil
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elsif @connection_info.respond_to? :call
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@connection_info.call
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else
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@connection_info
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end
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end
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def retry_with_error max_retry_count = 5
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retry_count = 0
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begin
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yield
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rescue StandardError => e
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raise e if e.is_a?(Signet::AuthorizationError) || e.is_a?(Signet::ParseError)
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if retry_count < max_retry_count
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retry_count += 1
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sleep retry_count * 0.3
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retry
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else
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msg = "Unexpected error: #{e.inspect}"
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raise Signet::AuthorizationError, msg
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end
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end
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end
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end
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end
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end
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