added a server draft

.gitignore

@@ -0,0 +1,2 @@
+.*
+!.git*

README.md

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+# SOAP is dead - long live SOAP
+
+First of all do not write SOAP services if you can avoid it! It is over.
+
+If you can not avoid it this package might help.
+
+```go
+package main
+
+import "github.com/foomo/soap"
+
+type FooRequest struct {
+	Foo string
+}
+
+type FooResponse struct {
+	Bar string
+}
+
+func RunServer() {
+	soapServer := soap.NewServer("127.0.0.1:8080")
+
+	soapServer.HandleOperation(
+		"operationFoo",
+		func() interface{} {
+			return &FooRequest{}
+		},
+		func(request interface{}) (response interface{}, err error) {
+			fooRequest := request.(FooRequest)
+			fooResponse := &FooResponse{
+				Bar: "Hello " + fooRequest.Foo,
+			}
+			response = fooResponse
+			return
+		},
+	)
+
+}
+
+func main() {
+	RunServer()
+}
+
+```

server.go

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+package soap
+
+type Server struct {
+}
+
+func NewServer(addr string) *Server {
+	s := &Server{}
+	return s
+}
+
+func (s *Server) HandleOperation(operationName string, requestFactory func() interface{}, operationHandler func(request interface{}) (response interface{}, err error)) {
+
+}

soap.go

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+package soap
+
+import "encoding/xml"
+
+type SOAPEnvelope struct {
+	XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ Envelope"`
+
+	Body SOAPBody
+}
+
+type SOAPHeader struct {
+	XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ Header"`
+
+	Header interface{}
+}
+
+type SOAPBody struct {
+	XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ Body"`
+
+	Fault   *SOAPFault  `xml:",omitempty"`
+	Content interface{} `xml:",omitempty"`
+}
+
+type SOAPFault struct {
+	XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ Fault"`
+
+	Code   string `xml:"faultcode,omitempty"`
+	String string `xml:"faultstring,omitempty"`
+	Actor  string `xml:"faultactor,omitempty"`
+	Detail string `xml:"detail,omitempty"`
+}
+
+func (b *SOAPBody) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
+	if b.Content == nil {
+		return xml.UnmarshalError("Content must be a pointer to a struct")
+	}
+
+	var (
+		token    xml.Token
+		err      error
+		consumed bool
+	)
+
+Loop:
+	for {
+		if token, err = d.Token(); err != nil {
+			return err
+		}
+
+		if token == nil {
+			break
+		}
+
+		switch se := token.(type) {
+		case xml.StartElement:
+			if consumed {
+				return xml.UnmarshalError("Found multiple elements inside SOAP body; not wrapped-document/literal WS-I compliant")
+			} else if se.Name.Space == "http://schemas.xmlsoap.org/soap/envelope/" && se.Name.Local == "Fault" {
+				b.Fault = &SOAPFault{}
+				b.Content = nil
+
+				err = d.DecodeElement(b.Fault, &se)
+				if err != nil {
+					return err
+				}
+
+				consumed = true
+			} else {
+				if err = d.DecodeElement(b.Content, &se); err != nil {
+					return err
+				}
+
+				consumed = true
+			}
+		case xml.EndElement:
+			break Loop
+		}
+	}
+
+	return nil
+}
+
+func (f *SOAPFault) Error() string {
+	return f.String
+}

test/test.go

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+package main
+
+import "github.com/foomo/soap"
+
+type FooRequest struct {
+	Foo string
+}
+
+type FooResponse struct {
+	Bar string
+}
+
+func RunServer() {
+	soapServer := soap.NewServer("127.0.0.1:8080")
+
+	soapServer.HandleOperation(
+		"operationFoo",
+		func() interface{} {
+			return &FooRequest{}
+		},
+		func(request interface{}) (response interface{}, err error) {
+			fooRequest := request.(FooRequest)
+			fooResponse := &FooResponse{
+				Bar: "Hello " + fooRequest.Foo,
+			}
+			response = fooResponse
+			return
+		},
+	)
+
+}
+
+func main() {
+	RunServer()
+}