124 lines
4.1 KiB
Ruby
124 lines
4.1 KiB
Ruby
# Copyright 2015, Google Inc.
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are
|
|
# met:
|
|
#
|
|
# * Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# * Redistributions in binary form must reproduce the above
|
|
# copyright notice, this list of conditions and the following disclaimer
|
|
# in the documentation and/or other materials provided with the
|
|
# distribution.
|
|
# * Neither the name of Google Inc. nor the names of its
|
|
# contributors may be used to endorse or promote products derived from
|
|
# this software without specific prior written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
require "signet/oauth_2/client"
|
|
|
|
module Signet
|
|
# OAuth2 supports OAuth2 authentication.
|
|
module OAuth2
|
|
AUTH_METADATA_KEY = :authorization
|
|
# Signet::OAuth2::Client creates an OAuth2 client
|
|
#
|
|
# This reopens Client to add #apply and #apply! methods which update a
|
|
# hash with the fetched authentication token.
|
|
class Client
|
|
def configure_connection options
|
|
@connection_info =
|
|
options[:connection_builder] || options[:default_connection]
|
|
self
|
|
end
|
|
|
|
# Updates a_hash updated with the authentication token
|
|
def apply! a_hash, opts = {}
|
|
# fetch the access token there is currently not one, or if the client
|
|
# has expired
|
|
fetch_access_token! opts if access_token.nil? || expires_within?(60)
|
|
a_hash[AUTH_METADATA_KEY] = "Bearer #{access_token}"
|
|
end
|
|
|
|
# Returns a clone of a_hash updated with the authentication token
|
|
def apply a_hash, opts = {}
|
|
a_copy = a_hash.clone
|
|
apply! a_copy, opts
|
|
a_copy
|
|
end
|
|
|
|
# Returns a reference to the #apply method, suitable for passing as
|
|
# a closure
|
|
def updater_proc
|
|
lambda(&method(:apply))
|
|
end
|
|
|
|
def on_refresh &block
|
|
@refresh_listeners ||= []
|
|
@refresh_listeners << block
|
|
end
|
|
|
|
alias orig_fetch_access_token! fetch_access_token!
|
|
def fetch_access_token! options = {}
|
|
unless options[:connection]
|
|
connection = build_default_connection
|
|
options = options.merge connection: connection if connection
|
|
end
|
|
info = retry_with_error do
|
|
orig_fetch_access_token! options
|
|
end
|
|
notify_refresh_listeners
|
|
info
|
|
end
|
|
|
|
def notify_refresh_listeners
|
|
listeners = @refresh_listeners || []
|
|
listeners.each do |block|
|
|
block.call self
|
|
end
|
|
end
|
|
|
|
def build_default_connection
|
|
if !defined?(@connection_info)
|
|
nil
|
|
elsif @connection_info.respond_to? :call
|
|
@connection_info.call
|
|
else
|
|
@connection_info
|
|
end
|
|
end
|
|
|
|
def retry_with_error max_retry_count = 5
|
|
retry_count = 0
|
|
|
|
begin
|
|
yield
|
|
rescue StandardError => e
|
|
raise e if e.is_a?(Signet::AuthorizationError) || e.is_a?(Signet::ParseError)
|
|
|
|
if retry_count < max_retry_count
|
|
retry_count += 1
|
|
sleep retry_count * 0.3
|
|
retry
|
|
else
|
|
msg = "Unexpected error: #{e.inspect}"
|
|
raise Signet::AuthorizationError, msg
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|