Add simple SdI request handler

Co-authored-by: Alex Malaszkiewicz <[email protected]>
Co-authored-by: Grzeg Lisowski <[email protected]>

sdi/message.go

@@ -0,0 +1,55 @@
+package sdi
+
+import (
+	"bytes"
+	"io"
+	"log"
+	"net/http"
+	"net/http/httputil"
+)
+
+// SdIMessageHandler processes SOAP requests from SdI (Sistema di Interscambio)
+func SdIMessageHandler(w http.ResponseWriter, req *http.Request) {
+	requestDump, err := httputil.DumpRequest(req, true)
+	if err != nil {
+		log.Printf("Failed to dump incoming request: %s\n", err)
+		http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+		return
+	}
+	log.Printf("Incoming request:\n%s", requestDump)
+
+	responseBody := []byte("Hello World")
+	response := &http.Response{
+		Status:        "200 OK",
+		StatusCode:    http.StatusOK,
+		Proto:         "HTTP/2.0",
+		ProtoMajor:    2,
+		ProtoMinor:    0,
+		Body:          io.NopCloser(bytes.NewReader(responseBody)),
+		ContentLength: int64(len(responseBody)),
+		Header:        make(http.Header),
+	}
+	response.Header.Set("Content-Type", "text/plain")
+
+	responseDump, err := httputil.DumpResponse(response, true)
+	if err != nil {
+		log.Printf("Failed to dump outgoing response: %v", err)
+		http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+		return
+	}
+	log.Printf("Outgoing response:\n%s", responseDump)
+
+	for k, v := range response.Header {
+		for _, vv := range v {
+			w.Header().Add(k, vv)
+		}
+	}
+
+	w.WriteHeader(response.StatusCode)
+
+	_, err = w.Write(responseBody)
+	if err != nil {
+		log.Printf("Failed to send response: %v", err)
+		return
+	}
+}