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# SOAP4R - SOAP XML Instance Generator library.
# Copyright (C) 2001, 2003, 2005 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 'xsd/ns'
require 'soap/soap'
require 'soap/baseData'
require 'soap/encodingstyle/handler'
module SOAP
###
## CAUTION: MT-unsafe
#
class SOAPGenerator
include SOAP
class FormatEncodeError < Error; end
public
attr_accessor :charset
attr_accessor :default_encodingstyle
attr_accessor :generate_explicit_type
attr_accessor :use_numeric_character_reference
def initialize(opt = {})
@reftarget = nil
@handlers = {}
@charset = opt[:charset] || XSD::Charset.xml_encoding_label
@default_encodingstyle = opt[:default_encodingstyle] || EncodingNamespace
@generate_explicit_type =
opt.key?(:generate_explicit_type) ? opt[:generate_explicit_type] : true
@elementformdefault = opt[:elementformdefault]
@attributeformdefault = opt[:attributeformdefault]
@use_numeric_character_reference = opt[:use_numeric_character_reference]
@indentstr = opt[:no_indent] ? '' : ' '
@buf = @indent = @curr = nil
end
def generate(obj, io = nil)
@buf = io || ''
@indent = ''
prologue
@handlers.each do |uri, handler|
handler.encode_prologue
end
ns = XSD::NS.new
@buf << xmldecl
encode_data(ns, obj, nil)
@handlers.each do |uri, handler|
handler.encode_epilogue
end
epilogue
@buf
end
def encode_data(ns, obj, parent)
if obj.is_a?(SOAPEnvelopeElement)
encode_element(ns, obj, parent)
return
end
if @reftarget && !obj.precedents.empty?
add_reftarget(obj.elename.name, obj)
ref = SOAPReference.new(obj)
ref.elename = ref.elename.dup_name(obj.elename.name)
obj.precedents.clear # Avoid cyclic delay.
obj.encodingstyle = parent.encodingstyle
# SOAPReference is encoded here.
obj = ref
end
encodingstyle = obj.encodingstyle
# Children's encodingstyle is derived from its parent.
encodingstyle ||= parent.encodingstyle if parent
obj.encodingstyle = encodingstyle
handler = find_handler(encodingstyle || @default_encodingstyle)
unless handler
raise FormatEncodeError.new("Unknown encodingStyle: #{ encodingstyle }.")
end
if !obj.elename.name
raise FormatEncodeError.new("Element name not defined: #{ obj }.")
end
handler.encode_data(self, ns, obj, parent)
handler.encode_data_end(self, ns, obj, parent)
end
def add_reftarget(name, node)
unless @reftarget
raise FormatEncodeError.new("Reftarget is not defined.")
end
@reftarget.add(name, node)
end
def encode_child(ns, child, parent)
indent_backup, @indent = @indent, @indent + @indentstr
encode_data(ns.clone_ns, child, parent)
@indent = indent_backup
end
def encode_element(ns, obj, parent)
attrs = {}
if obj.is_a?(SOAPBody)
@reftarget = obj
obj.encode(self, ns, attrs) do |child|
indent_backup, @indent = @indent, @indent + @indentstr
encode_data(ns.clone_ns, child, obj)
@indent = indent_backup
end
@reftarget = nil
else
if obj.is_a?(SOAPEnvelope)
# xsi:nil="true" can appear even if dumping without explicit type.
SOAPGenerator.assign_ns(attrs, ns,
XSD::InstanceNamespace, XSINamespaceTag)
if @generate_explicit_type
SOAPGenerator.assign_ns(attrs, ns, XSD::Namespace, XSDNamespaceTag)
end
end
obj.encode(self, ns, attrs) do |child|
indent_backup, @indent = @indent, @indent + @indentstr
encode_data(ns.clone_ns, child, obj)
@indent = indent_backup
end
end
end
def encode_name(ns, data, attrs)
if element_local?(data)
data.elename.name
else
if element_qualified?(data)
SOAPGenerator.assign_ns(attrs, ns, data.elename.namespace, '')
else
SOAPGenerator.assign_ns(attrs, ns, data.elename.namespace)
end
ns.name(data.elename)
end
end
def encode_name_end(ns, data)
if element_local?(data)
data.elename.name
else
ns.name(data.elename)
end
end
def encode_tag(elename, attrs = nil)
if !attrs or attrs.empty?
@buf << "\n#{ @indent }<#{ elename }>"
elsif attrs.size == 1
key, value = attrs.shift
@buf << %Q[\n#{ @indent }<#{ elename } #{ key }="#{ value }">]
else
@buf << "\n#{ @indent }<#{ elename } " <<
attrs.collect { |key, value|
%Q[#{ key }="#{ value }"]
}.join("\n#{ @indent }#{ @indentstr * 2 }") <<
'>'
end
end
def encode_tag_end(elename, cr = nil)
if cr
@buf << "\n#{ @indent }</#{ elename }>"
else
@buf << "</#{ elename }>"
end
end
def encode_rawstring(str)
@buf << str
end
EncodeMap = {
'&' => '&',
'<' => '<',
'>' => '>',
'"' => '"',
'\'' => ''',
"\r" => '
'
}
EncodeCharRegexp = Regexp.new("[#{EncodeMap.keys.join}]")
def encode_string(str)
if @use_numeric_character_reference and !XSD::Charset.is_us_ascii(str)
str.gsub!(EncodeCharRegexp) { |c| EncodeMap[c] }
@buf << str.unpack("U*").collect { |c|
if c == 0x9 or c == 0xa or c == 0xd or (c >= 0x20 and c <= 0x7f)
c.chr
else
sprintf("&#x%x;", c)
end
}.join
else
@buf << str.gsub(EncodeCharRegexp) { |c| EncodeMap[c] }
end
end
def element_local?(element)
element.elename.namespace.nil?
end
def element_qualified?(element)
if element.respond_to?(:qualified)
if element.qualified.nil?
@elementformdefault
else
element.qualified
end
else
@elementformdefault
end
end
def self.assign_ns(attrs, ns, namespace, tag = nil)
if namespace.nil?
raise FormatEncodeError.new("empty namespace")
end
unless ns.assigned?(namespace)
tag = ns.assign(namespace, tag)
if tag == ''
attr = 'xmlns'
else
attr = "xmlns:#{tag}"
end
attrs[attr] = namespace
end
end
private
def prologue
end
def epilogue
end
def find_handler(encodingstyle)
unless @handlers.key?(encodingstyle)
handler = SOAP::EncodingStyle::Handler.handler(encodingstyle).new(@charset)
handler.generate_explicit_type = @generate_explicit_type
handler.encode_prologue
@handlers[encodingstyle] = handler
end
@handlers[encodingstyle]
end
def xmldecl
if @charset
%Q[<?xml version="1.0" encoding="#{ @charset }" ?>]
else
%Q[<?xml version="1.0" ?>]
end
end
end
end