Added new infrastructure support for REST webservices.

  By default application/xml posts are handled by creating a XmlNode object with the same name as the root element of the submitted xml. M$

 ActionController::Base.param_parsers['application/atom+xml'] = Proc.new do |data|
    node = REXML::Document.new(post)
   { node.root.name => node.root }
 end

 XmlSimple and Yaml web services were retired, ActionController::Base.param_parsers carries an example which shows how to get this functio$
 request.[formatted_post?, xml_post?, yaml_post? and post_format] were all deprecated in favor of request.content_type [Tobias Luetke]

Closes #4081


git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3777 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 98 insertions, 0 deletions

diff --git a/actionpack/lib/action_controller/vendor/xml_node.rb b/actionpack/lib/action_controller/vendor/xml_node.rb
new file mode 100644
index 0000000000..c4e2f98fbf
--- /dev/null
+++ b/actionpack/lib/action_controller/vendor/xml_node.rb
@@ -0,0 +1,98 @@
+require 'rexml/document'
+
+# SimpleXML like xml parser. Written by leon breet from the ruby on rails Mailing list
+# 
+class XmlNode
+  attr :node
+
+  def initialize(node, options = {})
+    @node = node
+    @children = {}
+    @raise_errors = options[:raise_errors]
+  end
+
+  def self.from_xml(xml_or_io)
+    document = REXML::Document.new(xml_or_io)
+    if document.root 
+      XmlNode.new(document.root) 
+    else
+      XmlNode.new(document) 
+    end
+  end
+
+  def node_encoding
+    @node.encoding
+  end
+
+  def node_name
+    @node.name
+  end
+
+  def node_value
+    @node.text
+  end
+
+  def node_value=(value)
+    @node.text = value
+  end
+
+  def xpath(expr)
+    matches = nil
+    REXML::XPath.each(@node, expr) do |element|
+      matches ||= XmlNodeList.new
+      matches << (@children[element] ||= XmlNode.new(element))
+    end
+    matches
+  end
+
+  def method_missing(name, *args)
+    name = name.to_s
+    nodes = nil
+    @node.each_element(name) do |element|
+      nodes ||= XmlNodeList.new
+      nodes << (@children[element] ||= XmlNode.new(element))
+    end
+    nodes
+  end
+
+  def <<(node)
+    if node.is_a? REXML::Node
+      child = node
+    elsif node.respond_to? :node
+      child = node.node
+    end
+    @node.add_element child
+    @children[child] ||= XmlNode.new(child)
+  end
+
+  def [](name)
+    @node.attributes[name.to_s]
+  end
+
+  def []=(name, value)
+    @node.attributes[name.to_s] = value
+  end
+
+  def to_s
+    @node.to_s
+  end
+
+  def to_i
+    to_s.to_i
+  end
+end
+
+class XmlNodeList < Array
+  def [](i)
+    i.is_a?(String) ? super(0)[i] : super(i)
+  end
+
+  def []=(i, value)
+    i.is_a?(String) ? self[0][i] = value : super(i, value)
+  end
+
+  def method_missing(name, *args)
+    name = name.to_s
+    self[0].__send__(name, *args)
+  end
+end
\ No newline at end of file