lib/aviator/openstack/common/requests/v0/public/base.rb
module Aviator
define_request :base do
meta :provider, :openstack
meta :service, :common
meta :api_version, :v0
meta :endpoint_type, :public
def headers
{}.tap do |h|
if self.anonymous?
# do nothing
elsif session_data.has_key? :service_token
# service_token is the token that one would bootstrap OpenStack
# with during the installation process. This token can be used
# directly and does not require authentication beforehand.
h['X-Auth-Token'] = session_data[:service_token]
elsif keystone_v2_style_session_data?
h['X-Auth-Token'] = session_data[:body][:access][:token][:id]
elsif keystone_v3_style_session_data?
h['X-Auth-Token'] = session_data[:headers]['x-subject-token']
else
raise "Unknown session data format!"
end
end
end
private
def base_url
if session_data[:base_url]
session_data[:base_url]
elsif keystone_v2_style_session_data? && keystone_v2_style_service_info?
extract_base_url_from_keystone_v2_session_data
elsif keystone_v3_style_session_data? && keystone_v3_style_service_info?
extract_base_url_from_keystone_v3_session_data
elsif session_data[:auth_service] && session_data[:auth_service][:host_uri] && session_data[:auth_service][:api_version]
version = session_data[:auth_service][:api_version].to_s == "v2" ? "v2.0" : session_data[:auth_service][:api_version]
"#{ session_data[:auth_service][:host_uri] }/#{ version }"
elsif session_data[:auth_service] && session_data[:auth_service][:host_uri]
session_data[:auth_service][:host_uri]
else
raise Aviator::Service::MissingServiceEndpointError.new(service.to_s, self.class)
end
end
def build_service_type_string
api_versions_without_a_suffix = [
[:compute, :v2],
[:ec2, :v1],
[:identity, :v2],
[:image, :v1],
[:metering, :v1],
[:s3, :v1],
[:volume, :v1]
]
if api_versions_without_a_suffix.include? [service, api_version]
service.to_s
else
"#{ service }#{ api_version }"
end
end
def extract_base_url_from_keystone_v2_session_data
service_info = session_data[:body][:access][:serviceCatalog].find{ |s| s[:type] == build_service_type_string }
service_info[:endpoints][0]["#{ endpoint_type }URL".to_sym]
end
def extract_base_url_from_keystone_v3_session_data
service_info = session_data[:body][:token][:catalog].select{ |s| s[:type] == build_service_type_string }
endpoints = service_info.find{ |s| s.keys.include? "endpoints" }['endpoints']
endpoints.find{ |s| s['interface'] == endpoint_type.to_s }['url']
end
def keystone_v2_style_service_info?
not session_data[:body][:access][:serviceCatalog].find{ |s| s[:type] == build_service_type_string }.nil?
end
def keystone_v2_style_session_data?
session_data.has_key?(:body) && session_data[:body].has_key?(:access)
end
def keystone_v3_style_service_info?
not session_data[:body][:token][:catalog].find{ |s| s[:type] == build_service_type_string }.nil?
end
def keystone_v3_style_session_data?
session_data.has_key?(:headers) && session_data[:headers].has_key?("x-subject-token")
end
def params_to_querystring(param_names)
filters = []
param_names.each do |param_name|
filters << "#{ param_name }=#{ params[param_name] }" if params[param_name]
end
filters.empty? ? "" : "?#{ filters.join('&') }"
end
end
end