package main

import (
	"html/template"
	"log"
	"net/http"
)

func tryLogin(w http.ResponseWriter, r *http.Request) {
	if r.Method != "POST" {
		displayTmpl(w, "login.html", map[string]interface{}{})
		return
	}

	conn, err := myLDAP.Connect()
	if err != nil || conn == nil {
		log.Println(err)
		displayTmplError(w, http.StatusInternalServerError, "login.html", map[string]interface{}{"error": err.Error()})
	} else if err := conn.ServiceBind(); err != nil {
		log.Println(err)
		displayTmplError(w, http.StatusInternalServerError, "login.html", map[string]interface{}{"error": err.Error()})
	} else if dn, err := conn.SearchDN(r.PostFormValue("login")); err != nil {
		log.Println(err)
		displayTmplError(w, http.StatusInternalServerError, "login.html", map[string]interface{}{"error": err.Error()})
	} else if err := conn.Bind(dn, r.PostFormValue("password")); err != nil {
		log.Println(err)
		displayTmplError(w, http.StatusUnauthorized, "login.html", map[string]interface{}{"error": err.Error()})
	} else if entries, err := conn.GetEntry(dn); err != nil {
		log.Println(err)
		displayTmplError(w, http.StatusInternalServerError, "login.html", map[string]interface{}{"error": err.Error()})
	} else {
		cnt := "<ul>"
		for _, e := range entries {
			for _, v := range e.Values {
				if e.Name == "userPassword" {
					cnt += "<li><strong>" + e.Name + ":</strong> <em>[...]</em></li>"
				} else {
					cnt += "<li><strong>" + e.Name + ":</strong> " + v + "</li>"
				}
			}
		}
		displayTmpl(w, "message.html", map[string]interface{}{"details": template.HTML(`Login ok<br><br>Here are the information we have about you:` + cnt + "</ul>")})
	}
}