Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package sd.code.stagent.services; import sd.code.stagent.common.Web; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; /** * * @author motaz */ @WebServlet(name = "CallAMI", urlPatterns = { "/CallAMI" }) public class CallAMI extends HttpServlet { /** * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { String requestText = Web.readClient(request); try { JSONParser parser = new JSONParser(); JSONObject obj = (JSONObject) parser.parse(requestText); String username = obj.get("username").toString(); String secret = obj.get("secret").toString(); String command = obj.get("command").toString(); String input = command.replaceAll("\n", "&"); input = input.replaceAll(":", "="); input = input.replaceAll("\r", ""); input = input.replaceAll(" ", " "); input = input.replaceAll(" ", "%20"); // Login String loginInput = "action=login&username=" + username + "&secret=" + secret; String url = Web.getConfigurationParameter("amiurl", "", null); String text = Web.callWithCookies(url, loginInput, 40); boolean success = text.contains("accepted") || text.contains("authenticated"); // Execute command if (success) { text = Web.callWithCookies(url, input, 70); } // Logoff Web.callWithCookies(url, "logoff", 40); JSONObject res = new JSONObject(); res.put("success", success); res.put("message", text); out.println(res.toJSONString()); } catch (Exception ex) { JSONObject result = new JSONObject(); result.put("success", false); result.put("errorcode", 5); result.put("message", ex.toString()); out.println(result.toJSONString()); } } } // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."> /** * Handles the HTTP <code>GET</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } /** * Handles the HTTP <code>POST</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }