func (ws *webServer) DelFlag(w http.ResponseWriter, r *http.Request) {
_, name := path.Split(r.URL.Path)
macStr := r.FormValue("mac")
var machine datasource.Machine
var exist bool
if macStr != "" {
mac, err := net.ParseMAC(macStr)
if err != nil {
http.Error(w, `{"error": "Error while parsing the mac"}`, http.StatusInternalServerError)
return
}
machine, exist = ws.ds.GetMachine(mac)
if !exist {
http.Error(w, `{"error": "Machine not found"}`, http.StatusInternalServerError)
return
}
}
var err error
if machine != nil {
err = machine.DeleteFlag(name)
} else {
// TODO deafult flags
http.Error(w, `{"error": "Default flags not supported yet"}`, http.StatusInternalServerError)
}
if err != nil {
http.Error(w, `{"error": "Error while delleting value"}`, http.StatusInternalServerError)
return
}
io.WriteString(w, `"OK"`)
}
func nodeToDetails(node datasource.Machine) (*nodeDetails, error) {
name := node.Name()
mac := node.Mac()
ip, err := node.IP()
if err != nil {
return nil, errors.New("IP")
}
first, err := node.FirstSeen()
if err != nil {
return nil, errors.New("FIRST")
}
last, err := node.LastSeen()
if err != nil {
return nil, errors.New("LAST")
}
return &nodeDetails{name, mac.String(), ip, first, last}, nil
}
func executeTemplate(rootTemplte *template.Template, templateName string, machine datasource.Machine, hostAddr string) (string, error) {
template := rootTemplte.Lookup(templateName)
if template == nil {
return "", fmt.Errorf("template with name=%s wasn't found for root=%s",
templateName, rootTemplte)
}
buf := new(bytes.Buffer)
template.Funcs(map[string]interface{}{
"V": func(key string) string {
flag, err := machine.GetFlag(key)
if err != nil { // TODO excepts Not-Found
logging.Log(templatesDebugTag,
"Error while getting flag key=%s for machine=%s: %s",
key, machine.Name(), err)
return ""
}
return flag
},
"b64": func(text string) string {
return base64.StdEncoding.EncodeToString([]byte(text))
},
"b64template": func(templateName string) string {
text, err := executeTemplate(rootTemplte, templateName, machine, hostAddr)
if err != nil {
logging.Log(templatesDebugTag,
"Error while b64template for templateName=%s machine=%s: %s",
templateName, machine.Name(), err)
return ""
}
return base64.StdEncoding.EncodeToString([]byte(text))
},
})
ip, _ := machine.IP()
data := struct {
Mac string
IP string
Hostname string
Domain string
HostAddr string
}{
machine.Mac().String(),
ip.String(),
machine.Name(),
machine.Domain(),
hostAddr,
}
err := template.ExecuteTemplate(buf, templateName, &data)
if err != nil {
return "", err
}
str := buf.String()
str = strings.Trim(str, "\n")
return str, nil
}