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require 'action_web_service/protocol/soap_protocol/marshaler'
require 'soap/streamHandler'
module ActionWebService # :nodoc:
module Protocol # :nodoc:
module Soap # :nodoc:
def self.included(base)
base.register_protocol(SoapProtocol)
base.class_inheritable_option(:wsdl_service_name)
end
class SoapProtocol < AbstractProtocol # :nodoc:
DefaultEncoding = 'utf-8'
def marshaler
@marshaler ||= SoapMarshaler.new
end
def decode_action_pack_request(action_pack_request)
return nil unless soap_action = has_valid_soap_action?(action_pack_request)
service_name = action_pack_request.parameters['action']
charset = parse_charset(action_pack_request.env['HTTP_CONTENT_TYPE'])
protocol_options = {
:soap_action => soap_action,
:charset => charset
}
decode_request(action_pack_request.raw_post, service_name, protocol_options)
end
def encode_action_pack_request(service_name, public_method_name, raw_body, options={})
request = super
request.env['HTTP_SOAPACTION'] = '/soap/%s/%s' % [service_name, public_method_name]
request
end
def decode_request(raw_request, service_name, protocol_options={})
charset = protocol_options[:charset] || DefaultEncoding
envelope = SOAP::Processor.unmarshal(raw_request, :charset => charset)
unless envelope
raise ProtocolError, "Failed to parse SOAP request message"
end
request = envelope.body.request
method_name = request.elename.name
params = request.collect{ |k, v| marshaler.soap_to_ruby(request[k]) }
Request.new(self, method_name, params, service_name, nil, nil, protocol_options)
end
def encode_request(method_name, params, param_types)
param_types.each{ |type| marshaler.register_type(type) } if param_types
qname = XSD::QName.new(marshaler.type_namespace, method_name)
param_def = []
if param_types
params = param_types.zip(params).map do |type, param|
param_def << ['in', type.name, marshaler.lookup_type(type).mapping]
[type.name, marshaler.ruby_to_soap(param)]
end
else
params = []
end
request = SOAP::RPC::SOAPMethodRequest.new(qname, param_def)
request.set_param(params)
envelope = create_soap_envelope(request)
SOAP::Processor.marshal(envelope)
end
def decode_response(raw_response)
envelope = SOAP::Processor.unmarshal(raw_response)
unless envelope
raise ProtocolError, "Failed to parse SOAP request message"
end
method_name = envelope.body.request.elename.name
return_value = envelope.body.response
return_value = marshaler.soap_to_ruby(return_value) unless return_value.nil?
[method_name, return_value]
end
def encode_response(method_name, return_value, return_type, protocol_options={})
if return_type
return_binding = marshaler.register_type(return_type)
marshaler.annotate_arrays(return_binding, return_value)
end
qname = XSD::QName.new(marshaler.type_namespace, method_name)
if return_value.nil?
response = SOAP::RPC::SOAPMethodResponse.new(qname, nil)
else
if return_value.is_a?(Exception)
detail = SOAP::Mapping::SOAPException.new(return_value)
response = SOAP::SOAPFault.new(
SOAP::SOAPQName.new('%s:%s' % [SOAP::SOAPNamespaceTag, 'Server']),
SOAP::SOAPString.new(return_value.to_s),
SOAP::SOAPString.new(self.class.name),
marshaler.ruby_to_soap(detail))
else
if return_type
param_def = [['retval', 'return', marshaler.lookup_type(return_type).mapping]]
response = SOAP::RPC::SOAPMethodResponse.new(qname, param_def)
response.retval = marshaler.ruby_to_soap(return_value)
else
response = SOAP::RPC::SOAPMethodResponse.new(qname, nil)
end
end
end
envelope = create_soap_envelope(response)
charset = protocol_options[:charset] || DefaultEncoding
Response.new(SOAP::Processor.marshal(envelope, :charset => charset), "text/xml; charset=#{charset}", return_value)
end
def protocol_client(api, protocol_name, endpoint_uri, options={})
return nil unless protocol_name == :soap
ActionWebService::Client::Soap.new(api, endpoint_uri, options)
end
def register_api(api)
api.api_methods.each do |name, method|
method.expects.each{ |type| marshaler.register_type(type) } if method.expects
method.returns.each{ |type| marshaler.register_type(type) } if method.returns
end
end
private
def has_valid_soap_action?(request)
return nil unless request.method == :post
soap_action = request.env['HTTP_SOAPACTION']
return nil unless soap_action
soap_action = soap_action.dup
soap_action.gsub!(/^"/, '')
soap_action.gsub!(/"$/, '')
soap_action.strip!
return nil if soap_action.empty?
soap_action
end
def parse_charset(content_type)
return DefaultEncoding if content_type.nil?
if /^text\/xml(?:\s*;\s*charset=([^"]+|"[^"]+"))$/i =~ content_type
$1
else
DefaultEncoding
end
end
def create_soap_envelope(body)
header = SOAP::SOAPHeader.new
body = SOAP::SOAPBody.new(body)
SOAP::SOAPEnvelope.new(header, body)
end
end
end
end
end
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