Package com.pku.judgeonline.admin.servlet

Source Code of com.pku.judgeonline.admin.servlet.SourceBrowser

package com.pku.judgeonline.admin.servlet;

import com.pku.judgeonline.admin.common.FormattedOut;
import com.pku.judgeonline.common.DBConfig;
import com.pku.judgeonline.common.Tool;
import com.pku.judgeonline.common.UserModel;
import com.pku.judgeonline.error.ErrorProcess;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SourceBrowser extends HttpServlet
{
  /**
   *
   */
  private static final long serialVersionUID = 1L;

  // public static Object prob_mute = new Object();

  public void init() throws ServletException
  {
  }

  public void doGet(HttpServletRequest paramHttpServletRequest, HttpServletResponse paramHttpServletResponse) throws ServletException, IOException
  {
    paramHttpServletResponse.setContentType("text/html; charset=UTF-8");
    paramHttpServletRequest.setCharacterEncoding("UTF-8");
    PrintWriter PrintWriter = paramHttpServletResponse.getWriter();
    if (!UserModel.isAdminLoginned(paramHttpServletRequest))
    {
      Tool.GoToURL(LoginServlet.Admin_Login, paramHttpServletResponse);
      return;
    }
    FormattedOut.printHead(PrintWriter, "SourceBrowser List");
    String str1 = paramHttpServletRequest.getParameter("op");
    if (str1 == null)
      str1 = "";
    String str2 = paramHttpServletRequest.getParameter("user");
    if (str2 == null)
      str2 = "";
    Connection Connection = DBConfig.getConn();
    PreparedStatement preparedstatement;
    // synchronized (prob_mute)
    {
      try
      {
        if (str1.trim().equals("add"))
        {
          preparedstatement = Connection.prepareStatement("select user_id from users where user_id=?");
          preparedstatement.setString(1, str2);
          ResultSet resultset = preparedstatement.executeQuery();
          if (!resultset.first())
          {
            ErrorProcess.Error("The user( " + str2 + ") not existed", PrintWriter);
            preparedstatement.close();
            Connection.close();
            return;
          }
          preparedstatement.close();
          preparedstatement = Connection.prepareStatement("select * from privilege where user_id=? and rightstr='source_browser'");
          preparedstatement.setString(1, str2);
          resultset = preparedstatement.executeQuery();
          if (resultset.first())
          {
            ErrorProcess.Error("The user( " + str2 + ") existed", PrintWriter);
            preparedstatement.close();
            Connection.close();
            return;
          }
          preparedstatement.close();
          preparedstatement = Connection.prepareStatement("insert into privilege (user_id,rightstr) values (?,'source_browser')");
          preparedstatement.setString(1, str2);
          preparedstatement.executeUpdate();
          preparedstatement.close();
          Tool.GoToURL("admin.sourcebrowser", paramHttpServletResponse);
        } else if (str1.trim().equals("del"))
        {
          preparedstatement = Connection.prepareStatement("select * from privilege where user_id=?" + (UserModel.isRoot(paramHttpServletRequest) ? "" : "and rightstr='source_browser'"));
          preparedstatement.setString(1, str2);
          ResultSet resultset = preparedstatement.executeQuery();

          if (!resultset.first())
          {
            ErrorProcess.Error("The user( " + str2 + ") not existed", PrintWriter);
            preparedstatement.close();
            Connection.close();
            return;
          }
          preparedstatement.close();
          preparedstatement = Connection.prepareStatement("delete from privilege where user_id=?" + (UserModel.isRoot(paramHttpServletRequest) ? "" : "and rightstr='source_browser'"));
          preparedstatement.setString(1, str2);
          preparedstatement.executeUpdate();
          preparedstatement.close();
          Tool.GoToURL("admin.sourcebrowser", paramHttpServletResponse);
        } else
        {
          preparedstatement = Connection.prepareStatement("SELECT COUNT(*) AS total FROM privilege" + (UserModel.isRoot(paramHttpServletRequest) ? " order by rightstr" : " WHERE rightstr='source_browser'"));
        }
        ResultSet resultset = preparedstatement.executeQuery();
        resultset.first();
        resultset.close();
        preparedstatement.close();
        preparedstatement = Connection.prepareStatement("SELECT * FROM privilege" + (UserModel.isRoot(paramHttpServletRequest) ? " order by rightstr" : " WHERE rightstr='source_browser'"));
        resultset = preparedstatement.executeQuery();
        PrintWriter.println("<center><img src='./images/user.gif' alt='user'></center><br>");
        PrintWriter.println("<p align=center><font size=5 color=#333399>SourceBrowser List</font></p>");
        PrintWriter.println("<form method=get action=admin.sourcebrowser><center><input type=hidden name=op value=add><input type=text name=user size=20><input type=Submit value=Add></form></center>");
        PrintWriter.println("<TABLE cellSpacing=0 cellPadding=0 width=99% border=1 background=images/table_back.jpg style=\"border-collapse: collapse\" bordercolor=#FFFFFF>");
        PrintWriter.println("<tr align=center bgcolor=#6589D1>");
        PrintWriter.println("<td width=\"5%\" ><b>No.</b></td>");
        PrintWriter.println("<td width=\"10%\" ><b>User ID</b></td>");
        PrintWriter.println("<td width=\"55%\" ><b>Rightstr</b></td>");
        PrintWriter.println("<td width=\"55%\" ><b>Operator</b></td>");
        PrintWriter.println("</tr>");
        int i = 1;
        for (; resultset.next(); PrintWriter.println("</tr>"))
        {
          PrintWriter.println("<tr align=center>");
          long l2 = i++;
          String str3 = resultset.getString("user_id");
          String str4 = resultset.getString("rightstr");
          PrintWriter.println("<td width=\"5%\" align=\"center\">" + l2 + "</td>");
          PrintWriter.println("<td><a href=userstatus?user_id=" + str3 + ">" + str3 + "</a></td>");
          PrintWriter.println("<td><font color=green>" + Tool.titleEncode(str4) + "</font></td>");
          boolean flag4 = str4.equalsIgnoreCase("source_browser") || str4.equalsIgnoreCase("title") || (!str4.equalsIgnoreCase("root") && UserModel.isRoot(paramHttpServletRequest));
          PrintWriter.println("<td>" + (flag4 ? "<a href=javascript:sbdel(\"" + str3 + "\")>" : "") + "Del" + (flag4 ? "</a>" : "") + "</td>");
        }

        PrintWriter.println("</table>");
        PrintWriter.println("<p align=\"center\">");
        PrintWriter.println("</p>");
        Connection.close();
        preparedstatement.close();
      } catch (Exception Exception)
      {
        ErrorProcess.ExceptionHandle(Exception, PrintWriter);
      }
      FormattedOut.printBottom(PrintWriter);
    }
  }

  public void destroy()
  {
  }
}
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