update quakeml from scml13 for fdsn-ws

cmd/fdsn-ws/fdsn_event.go

@@ -502,22 +502,28 @@ func fdsnEventV1Handler(r *http.Request, h http.Header, b *bytes.Buffer) error {
 		}
 		defer rows.Close()
 
-		b.WriteString(`<?xml version="1.0" encoding="UTF-8"?>
-	<q:quakeml xmlns:q="http://quakeml.org/xmlns/quakeml/1.2" xmlns="http://quakeml.org/xmlns/bed/1.2">
-	  <eventParameters publicID="smi:nz.org.geonet/NA">`)
-
 		var xml string
-
+		var hasHeader bool
 		for rows.Next() {
 			err = rows.Scan(&xml)
 			if err != nil {
 				return fdsnError{StatusError: weft.StatusError{Code: http.StatusInternalServerError, Err: err}, url: r.URL.String(), timestamp: tm}
 			}
-
-			b.WriteString(xml)
+			hasHeader = strings.HasPrefix(xml, `<?xml version="1.0" encoding="UTF-8"?>`) &&
+				strings.Contains(xml, `<q:quakeml xmlns:q="http://quakeml.org/xmlns/quakeml/1.2" xmlns="http://quakeml.org/xmlns/bed/1.2">`) &&
+				strings.Contains(xml, `<eventParameters`) &&
+				strings.Contains(xml, `</eventParameters>`)
+			strings.HasSuffix(xml, ` </q:quakeml>`)
+		}
+		if !hasHeader { //for all other xsl than sc3ml_0.13__quakeml_1.2.xsl generated quakeml
+			b.WriteString(`<?xml version="1.0" encoding="UTF-8"?>
+	          <q:quakeml xmlns:q="http://quakeml.org/xmlns/quakeml/1.2" xmlns="http://quakeml.org/xmlns/bed/1.2">
+	          <eventParameters publicID="smi:nz.org.geonet/NA">`)
+		}
+		b.WriteString(xml)
+		if !hasHeader {
+			b.WriteString(`</eventParameters></q:quakeml>`)
 		}
-
-		b.WriteString(`</eventParameters></q:quakeml>`)
 
 		h.Set("Content-Type", "application/xml")
 	} else {