001/**
002 * Copyright (C) 2014  Universidade de Aveiro, DETI/IEETA, Bioinformatics Group - http://bioinformatics.ua.pt/
003 *
004 * This file is part of Dicoogle/dicoogle.
005 *
006 * Dicoogle/dicoogle is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * Dicoogle/dicoogle is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with Dicoogle.  If not, see <http://www.gnu.org/licenses/>.
018 */
019
020package pt.ua.dicoogle.server.web.servlets.accounts;
021
022import java.io.IOException;
023import java.util.Set;
024import javax.servlet.ServletException;
025import javax.servlet.http.HttpServlet;
026import javax.servlet.http.HttpServletRequest;
027import javax.servlet.http.HttpServletResponse;
028import net.sf.json.JSONArray;
029import net.sf.json.JSONObject;
030import pt.ua.dicoogle.server.users.HashService;
031import pt.ua.dicoogle.server.users.User;
032import pt.ua.dicoogle.server.users.UsersStruct;
033import pt.ua.dicoogle.server.web.utils.ResponseUtil;
034
035/**
036 * User Servlet for create, remove and consult user accounts
037 *
038 * @author Frederico Silva <fredericosilva@ua.pt>
039 */
040public class UserServlet extends HttpServlet {
041
042    @Override
043    protected void doDelete(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
044        String usernameToRemove = req.getParameter("username");
045
046        boolean isRemoved = false;
047        if (usernameToRemove != null && !usernameToRemove.equals("")) {
048            isRemoved = UsersStruct.getInstance().removeUser(usernameToRemove);
049        }
050
051        ResponseUtil.simpleResponse(resp, "success",isRemoved);
052    }
053
054    @Override
055    protected void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
056        String user = req.getParameter("username");
057        String pass = req.getParameter("password");
058        boolean admin = Boolean.parseBoolean(req.getParameter("admin"));
059        //System.out.println("ADD USER: " + user + "\npass: " + pass + "\nadmin: " + admin);
060
061        String passHash = HashService.getSHA1Hash(pass);             //password Hash
062        String Hash = HashService.getSHA1Hash(user + admin + passHash);   //user Hash
063
064        boolean wasAdded = UsersStruct.getInstance().addUser(new User(user, Hash, admin));
065        ResponseUtil.simpleResponse(resp, "success",wasAdded );
066    }
067
068    @Override
069    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
070
071        Set<String> users = UsersStruct.getInstance().getUsernames();
072        resp.setContentType("application/json");
073        
074        JSONObject jsonObject = new JSONObject();
075        JSONArray usersArray = new JSONArray();
076        for (String user : users) {
077            JSONObject u = new JSONObject();
078            u.put("username", user);
079            usersArray.add(u);
080        }
081
082        jsonObject.put("users", usersArray);
083        jsonObject.write(resp.getWriter());
084    }
085
086}