// setMatch extracts the variables from the URL once a route matches.
func (v *routeRegexp) setMatch(msg *coap.Message, m *RouteMatch, r *Route) {
// Store path variables.
pathVars := v.regexp.FindStringSubmatch(msg.PathString())
if pathVars != nil {
subexpNames := v.regexp.SubexpNames()
varName := 0
for i, name := range subexpNames[1:] {
if name != "" && name == varGroupName(varName) {
m.Vars[v.varsN[varName]] = pathVars[i+1]
varName++
}
}
}
}
func handle(conn *net.UDPConn, addr *net.UDPAddr, mess *coap.Message) *coap.Message {
log.Printf("Got message path=%q: %#v from %v", mess.Path(), mess, addr)
var payload []byte
var err error
// checks available endpoints
check := check_endpoint(mess.Path())
if !check {
return response(mess, coap.BadRequest, &payload)
}
// invoke handler
payload, err = handlers.SendRequest(mess)
if err != nil {
log.Printf("Error on handler, stopping: %v", err)
return nil
}
if mess.IsConfirmable() {
return response(mess, coap.Content, &payload)
}
return nil
}
// Match matches the regexp against the URL host or path.
func (r *routeRegexp) Match(msg *coap.Message, addr *net.UDPAddr) bool {
return r.regexp.MatchString(msg.PathString())
}