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# SOAP4R - RPC Routing library
# Copyright (C) 2001, 2002 NAKAMURA, Hiroshi <nahi@ruby-lang.org>.
# This program is copyrighted free software by NAKAMURA, Hiroshi. You can
# redistribute it and/or modify it under the same terms of Ruby's license;
# either the dual license version in 2003, or any later version.
require 'soap/soap'
require 'soap/processor'
require 'soap/mapping'
require 'soap/rpc/rpc'
require 'soap/rpc/element'
require 'soap/streamHandler'
require 'soap/mimemessage'
require 'soap/header/handlerset'
module SOAP
module RPC
class Router
include SOAP
attr_reader :actor
attr_accessor :allow_unqualified_element
attr_accessor :default_encodingstyle
attr_accessor :mapping_registry
attr_reader :headerhandler
def initialize(actor)
@actor = actor
@receiver = {}
@method_name = {}
@method = {}
@allow_unqualified_element = false
@default_encodingstyle = nil
@mapping_registry = nil
@headerhandler = Header::HandlerSet.new
end
def add_method(receiver, qname, soapaction, name, param_def)
fqname = fqname(qname)
@receiver[fqname] = receiver
@method_name[fqname] = name
@method[fqname] = RPC::SOAPMethodRequest.new(qname, param_def, soapaction)
end
def route(conn_data)
soap_response = nil
begin
env = unmarshal(conn_data)
if env.nil?
raise ArgumentError.new("Illegal SOAP marshal format.")
end
receive_headers(env.header)
soap_request = env.body.request
unless soap_request.is_a?(SOAPStruct)
raise RPCRoutingError.new("Not an RPC style.")
end
soap_response = dispatch(soap_request)
rescue Exception
soap_response = fault($!)
conn_data.is_fault = true
end
opt = options
opt[:external_content] = nil
header = call_headers
body = SOAPBody.new(soap_response)
env = SOAPEnvelope.new(header, body)
response_string = Processor.marshal(env, opt)
conn_data.send_string = response_string
if ext = opt[:external_content]
mime = MIMEMessage.new
ext.each do |k, v|
mime.add_attachment(v.data)
end
mime.add_part(conn_data.send_string + "\r\n")
mime.close
conn_data.send_string = mime.content_str
conn_data.send_contenttype = mime.headers['content-type'].str
end
conn_data
end
# Create fault response string.
def create_fault_response(e, charset = nil)
header = SOAPHeader.new
body = SOAPBody.new(fault(e))
env = SOAPEnvelope.new(header, body)
opt = options
opt[:external_content] = nil
opt[:charset] = charset
response_string = Processor.marshal(env, opt)
conn_data = StreamHandler::ConnectionData.new(response_string)
conn_data.is_fault = true
if ext = opt[:external_content]
mime = MIMEMessage.new
ext.each do |k, v|
mime.add_attachment(v.data)
end
mime.add_part(conn_data.send_string + "\r\n")
mime.close
conn_data.send_string = mime.content_str
conn_data.send_contenttype = mime.headers['content-type'].str
end
conn_data
end
private
def call_headers
headers = @headerhandler.on_outbound
if headers.empty?
nil
else
h = ::SOAP::SOAPHeader.new
headers.each do |header|
h.add(header.elename.name, header)
end
h
end
end
def receive_headers(headers)
@headerhandler.on_inbound(headers) if headers
end
def unmarshal(conn_data)
opt = options
contenttype = conn_data.receive_contenttype
if /#{MIMEMessage::MultipartContentType}/i =~ contenttype
opt[:external_content] = {}
mime = MIMEMessage.parse("Content-Type: " + contenttype,
conn_data.receive_string)
mime.parts.each do |part|
value = Attachment.new(part.content)
value.contentid = part.contentid
obj = SOAPAttachment.new(value)
opt[:external_content][value.contentid] = obj if value.contentid
end
opt[:charset] =
StreamHandler.parse_media_type(mime.root.headers['content-type'].str)
env = Processor.unmarshal(mime.root.content, opt)
else
opt[:charset] = ::SOAP::StreamHandler.parse_media_type(contenttype)
env = Processor.unmarshal(conn_data.receive_string, opt)
end
charset = opt[:charset]
conn_data.send_contenttype = "text/xml; charset=\"#{charset}\""
env
end
# Create new response.
def create_response(qname, result)
name = fqname(qname)
if (@method.key?(name))
method = @method[name]
else
raise RPCRoutingError.new("Method: #{ name } not defined.")
end
soap_response = method.create_method_response
if soap_response.have_outparam?
unless result.is_a?(Array)
raise RPCRoutingError.new("Out parameter was not returned.")
end
outparams = {}
i = 1
soap_response.each_param_name('out', 'inout') do |outparam|
outparams[outparam] = Mapping.obj2soap(result[i], @mapping_registry)
i += 1
end
soap_response.set_outparam(outparams)
soap_response.retval = Mapping.obj2soap(result[0], @mapping_registry)
else
soap_response.retval = Mapping.obj2soap(result, @mapping_registry)
end
soap_response
end
# Create fault response.
def fault(e)
detail = Mapping::SOAPException.new(e)
SOAPFault.new(
SOAPString.new('Server'),
SOAPString.new(e.to_s),
SOAPString.new(@actor),
Mapping.obj2soap(detail, @mapping_registry))
end
# Dispatch to defined method.
def dispatch(soap_method)
request_struct = Mapping.soap2obj(soap_method, @mapping_registry)
values = soap_method.collect { |key, value| request_struct[key] }
method = lookup(soap_method.elename, values)
unless method
raise RPCRoutingError.new(
"Method: #{ soap_method.elename } not supported.")
end
result = method.call(*values)
create_response(soap_method.elename, result)
end
# Method lookup
def lookup(qname, values)
name = fqname(qname)
# It may be necessary to check all part of method signature...
if @method.member?(name)
@receiver[name].method(@method_name[name].intern)
else
nil
end
end
def fqname(qname)
"#{ qname.namespace }:#{ qname.name }"
end
def options
opt = {}
opt[:default_encodingstyle] = @default_encodingstyle
if @allow_unqualified_element
opt[:allow_unqualified_element] = true
end
opt
end
end
end
end
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