xml_server.go

package main

import (
	"encoding/xml"
	"fmt"
	"net/http"
)

var input string = `<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE WMT_MS_Capabilities SYSTEM "http://giswebservices.massgis.state.ma.us/geoserver/schemas/wms/1.1.1/WMS_MS_Capabilities.dtd">
<WMT_MS_Capabilities version="1.1.1" updateSequence="7007">
  <Service>
      <Name>OGC:WMS</Name>
      <Title>Massachusetts Data from MassGIS (GeoServer)</Title>
      <Abstract>Statewide Massachusetts data served by MassGIS via GeoServer.</Abstract>
      <OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="http://giswebservices.massgis.state.ma.us/geoserver/wms"/>
  </Service>
</WMT_MS_Capabilities>`

type WMT_MS_Capabilities struct {
	Service Service
	Version string `xml:"version,attr"`
	UpdateSeq string `xml:"updateSequence,attr"`
}

type Service struct {
	Name  string
	Title string
	Abstract string 
	OnlineResource Resource
}

type Resource struct {
	NSXLink string `xml:"xlink,attr"`
	XLink string `xml:"type,attr"`
	HRef string `xml:"href,attr"`
}

func handler(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Disposition", "attachment; filename=getcapabilities.xml")
	enc := xml.NewEncoder(w)
	enc.Indent("", "    ")
	b := WMT_MS_Capabilities{}
	xml.Unmarshal([]byte(input), &b)
	if err := enc.Encode(b); err != nil {
		fmt.Printf("error: %v\n", err)
	}
}

func main() {
	http.HandleFunc("/", handler)
	http.ListenAndServe(":8080", nil)
}