G-InfoArena: May 2013

code for forgot password

Following directory Structure you need to create for this(Tomcat directory i had used)

WEB.xml

JSP files

ResetPassword.jsp
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Reset your Password</title> <link rel="stylesheet" href="css/tableLayout.css"> <script type="text/javascript"> function Verify() { var emailpattern = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/; var emailObj = document.getElementById("cus_email"); if (emailObj.value == null || emailObj.value == "") { alert("Enter email Id"); emailObj.focus(); return false; } else if (!emailpattern.test(emailObj.value)) { alert("please enter valid e-mail address") emailObj.focus(); return false; } else { return true; } } </script> </head> <body> <form method="post" action="./Send"> <% if (request.getAttribute("linkfailuremsg") != null) { %> <font color="black" size="4"><p align="center" style="background-color: lightyellow"> This link has been accessed once already.<br> OR it has been more than 1 hour since you requested for it.<br> In case you are trying to reset your password again, request for new link below. </p></font> <% } %> <table class="tablelayout"> <caption>Reset your Password</caption> <tr> <td class="required">Enter your Email id</td> <td><input type="text" name="cus_email" id="cus_email" /></td> </tr> <tr> <td colspan="2"><input type="submit" value="reset" onclick="javascript: return Verify()" /></td> </tr> </table> </form> </body> </html>
SetNewPassword.jsp
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Set New Password</title> <link rel="stylesheet" href="css/tableLayout.css"> <script type="text/javascript"> function verfiypass() { var emailpattern = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/; if (document.getElementById("mailid").value == "") { alert("Enter Email ID "); document.getElementById("mailid").focus(); return false; } else if (!emailpattern.test(document.getElementById("mailid").value)) { alert("please enter valid e-mail address"); document.getElementById("mailid").focus(); return false; } if (document.getElementById("pwd").value == "") { alert("Enter Password"); document.getElementById("pwd").focus(); return false; } else if (document.getElementById("cpwd").value == "") { alert("Confirm the Password"); document.getElementById("cpwd").focus(); return false; } else if (document.getElementById("pwd").value != document .getElementById("cpwd").value) { alert("Password and Confirm password do not match"); document.getElementById("pwd").focus(); return false; } else { return true; } } </script> </head> <body> <form method="post" action="./Reset"> <table class="tablelayout curve"> <caption>Set new Credentials</caption> <tr> <td><label class="required">Enter your Registered mail id</label></td> <td><input type="text" name="mailid" id="mailid" /></td> </tr> <tr> <td><label class="required">Enter new Password</label></td> <td><input type="password" name="pwd" id="pwd"></td> </tr> <tr> <td><label class="required">Confirm Password</label></td> <td><input type="password" name="cpwd" id="cpwd"></td> </tr> <tr> <td align="center" colspan="2"><input type="submit" value="submit" onclick=" return verfiypass()" /></td> </tr> </table> </form> </body> </html>

CSS File

tableLayout.css
@CHARSET "ISO-8859-1"; .curve { border-top-left-radius: 6px; border-top-right-radius: 6px; border-bottom-left-radius: 6px; border-bottom-right-radius: 6px; } .tablelayout { margin: 15px auto; width: 500px; height: 200px; font-family: sans-serif; font-size: 15px; border: 1px solid silver; } .tablelayout caption { text-transform: uppercase; font-weight: bold; color: burlywood; } .tablelayout td { padding: 10px; height: 20px; } .tablelayout td input[type='text'],.tablelayout td input[type='password'] { height: 25px; width: 200px; } :FOCUS { border-color: blue; } .tablelayout td input[type='submit'] { height: 35px; width: 100px; text-transform: uppercase; background-color: black; color: #ffffff; } .required:AFTER { color: red; content: " *"; }

Servlet

AuthenticateRequest.java
package com.fpwd.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.Map; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import com.fpwd.DAO.FPDao; import com.fpwd.util.Utility; /** * Servlet implementation class AuthenticateRequest */ public class AuthenticateRequest extends HttpServlet { private static final long serialVersionUID = 1L; private Utility utility; private FPDao dao; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { PrintWriter out = response.getWriter(); HttpSession session = request.getSession(); utility = Utility.getInstance(); String utid = utility.decryptData(request.getParameter("UTID")); String useremail = utility.decryptData(request .getParameter("USERID")); dao = new FPDao(); Map<String , String> data = dao.verifyRequest(utid, useremail); if (data.get("RESULT").toString().equalsIgnoreCase("SUCCESS")) { session.setAttribute("tokenId", utid); response.sendRedirect(data.get("REASON").toString()); } else if (data.get("RESULT").toString() .equalsIgnoreCase("FAILURE") && data.get("REASON").toString() .equalsIgnoreCase("TIMEOUT")) { request.setAttribute("linkfailuremsg", "on"); RequestDispatcher view = request .getRequestDispatcher("ResetPassword.jsp"); view.forward(request, response); } else if (data.get("RESULT").toString() .equalsIgnoreCase("FAILURE") && data.get("REASON").toString() .equalsIgnoreCase("INVALIDREQ")) { out.println("<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>Invalid Request</b> </div> </center> </body> </html>"); } else if (data.get("RESULT").toString() .equalsIgnoreCase("EXCEPTION")) { out.println("<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>Internal Exception Occured! Please try Later<br />Reason:-" + data.get("REASON").toString() + "</b> </div> </center> </body> </html>"); } } catch (Exception e) { response.getWriter() .println( "<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>Internal Exception Occured! Please try Later<br />Reason:-" + e.getMessage() + "</b> </div> </center> </body> </html>"); } } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } }
ResetPassword.java
package com.fpwd.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.fpwd.DAO.FPDao; /** * Servlet implementation class ResetPassword */ public class ResetPassword extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { PrintWriter out = response.getWriter(); FPDao fpdao; try { String newpass = request.getParameter("pwd"); String mailid = request.getParameter("mailid"); String utid = (String) request.getSession().getAttribute("tokenId"); fpdao = new FPDao(); Map<String , String> data = fpdao.insertData(utid, mailid, newpass); if (data.get("RESULT").toString().equalsIgnoreCase("SUCCESS")) { out.println("<html> <head /> <body> <center> <div style='color: #4F8A10; background-color: #DFF2BF;'> <b>" + data.get("REASON").toString() + "</b> </div> </center> </body> </html>"); } else if (data.get("RESULT").toString() .equalsIgnoreCase("FAILURE")) { out.println("<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>" + data.get("REASON").toString() + "</b> </div> </center> </body> </html>"); } else if (data.get("RESULT").toString() .equalsIgnoreCase("EXCEPTION")) { out.println("<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>Internal Exception Occured! Please try Later<br />Reason:-" + data.get("REASON").toString() + "</b> </div> </center> </body> </html>"); } } catch (Exception e) { response.getWriter() .println( "<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>Internal Exception Occured! Please try Later<br />Reason:-" + e.getMessage() + "</b> </div> </center> </body> </html>"); } finally { out.close(); } } }
SendResetLink.java
package com.fpwd.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.fpwd.DAO.FPDao; /** * Servlet implementation class SendResetLink */ public class SendResetLink extends HttpServlet { private static final long serialVersionUID = 1L; FPDao dao; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { PrintWriter out = response.getWriter(); String useremail = request.getParameter("cus_email"); dao = new FPDao(); Map<String , String> data = dao.insertData(useremail); if (data.get("RESULT").toString().equalsIgnoreCase("SUCCESS")) { out.println("<html> <head /> <body> <center> <div style='color: #4F8A10; background-color: #DFF2BF;'> <b>" + data.get("REASON").toString() + "</b> </div> </center> </body> </html>"); } else if (data.get("RESULT").toString() .equalsIgnoreCase("FAILURE")) { out.println("<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>" + data.get("REASON").toString() + "</b> </div> </center> </body> </html>"); } else if (data.get("RESULT").toString() .equalsIgnoreCase("EXCEPTION")) { out.println("<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>Internal Exception Occured! Please try Later<br />Reason:-" + data.get("REASON").toString() + "</b> </div> </center> </body> </html>"); } } catch (Exception e) { response.getWriter() .println( "<html> <head /> <body> <center> <div style='color: #D8000C; background-color: #FFBABA;'> <b>Internal Exception Occured! Please try Later<br />Reason:-" + e.getMessage() + "</b> </div> </center> </body> </html>"); } } }

Common Classes

AESEncryption.java
/* * * Author: Gaurav Pathak */ package com.fpwd.common; import java.util.ResourceBundle; import javax.crypto.*; import javax.crypto.spec.SecretKeySpec; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; /* * * This class is used to encrypt the secret token send along the mail. USE SECRET KEY OF LENGTH 16. */ public class AESEncryption{ private static final String ALGO = "AES"; private static ResourceBundle rb2 = ResourceBundle.getBundle("com.fpwd.commonconfig\\DB"); private static String key=rb2.getString("secretkeyforpass"); private static final byte[] keyValue = key.getBytes(); public static String encrypt(String Data) throws Exception { SecretKeySpec key = generateKey(); Cipher c = Cipher.getInstance(ALGO); c.init(Cipher.ENCRYPT_MODE, key); byte[] encVal = c.doFinal(Data.getBytes()); String encryptedValue = new BASE64Encoder().encode(encVal); return encryptedValue; } public static String decrypt(String encryptedData) throws Exception { SecretKeySpec key = generateKey(); Cipher c = Cipher.getInstance(ALGO); c.init(Cipher.DECRYPT_MODE, key); byte[] decordedValue = new BASE64Decoder().decodeBuffer(encryptedData); byte[] decValue = c.doFinal(decordedValue); String decryptedValue = new String(decValue); return decryptedValue; } private static SecretKeySpec generateKey() throws Exception { SecretKeySpec key = new SecretKeySpec(keyValue, ALGO); return key; } }
Base64Coder.java
package com.fpwd.common; import java.lang.StringBuffer; public class Base64Coder { // The line separator string of the operating system. private static final String systemLineSeparator = "ABCD"; //System.getProperty("line.separator"); // Mapping table from 6-bit nibbles to Base64 characters. private static char[] map1 = new char[64]; static { int i=0; for (char c='A'; c<='Z'; c++) map1[i++] = c; for (char c='a'; c<='z'; c++) map1[i++] = c; for (char c='0'; c<='9'; c++) map1[i++] = c; map1[i++] = '+'; map1[i++] = '/'; } // Mapping table from Base64 characters to 6-bit nibbles. private static byte[] map2 = new byte[128]; static { for (int i=0; i<map2.length ; i++) map2[i] =-1; for (int i=0; i<64; i++) map2[map1[i]] = (byte)i; } /** * Encodes a string into Base64 format. * No blanks or line breaks are inserted. * @param s A String to be encoded. * @return A String containing the Base64 encoded data. */ public static String encodeString (String s) { return new String(encode(s.getBytes())); } /** * Encodes a byte array into Base 64 format and breaks the output into lines of 76 characters. * This method is compatible with <code>sun.misc.BASE64Encoder.encodeBuffer(byte[])</code>. * @param in An array containing the data bytes to be encoded. * @return A String containing the Base64 encoded data, broken into lines. */ public static String encodeLines (byte[] in) { return encodeLines(in, 0, in.length, 76, systemLineSeparator); } /** * Encodes a byte array into Base 64 format and breaks the output into lines. * @param in An array containing the data bytes to be encoded. * @param iOff Offset of the first byte in <code>in</code> to be processed. * @param iLen Number of bytes to be processed in <code>in</code>, starting at <code>iOff</code>. * @param lineLen Line length for the output data. Should be a multiple of 4. * @param lineSeparator The line separator to be used to separate the output lines. * @return A String containing the Base64 encoded data, broken into lines. */ public static String encodeLines (byte[] in, int iOff, int iLen, int lineLen, String lineSeparator) { int blockLen = (lineLen*3) / 4; if (blockLen <= 0) throw new IllegalArgumentException(); int lines = (iLen+blockLen-1) / blockLen; int bufLen = ((iLen+2)/3)*4 + lines*lineSeparator.length(); StringBuffer buf = new StringBuffer(bufLen); // StringBuilder buf = new StringBuilder(bufLen); int ip = 0; while (ip < iLen) { int l = Math.min(iLen-ip, blockLen); buf.append (encode(in, iOff+ip, l)); buf.append (lineSeparator); ip += l; } return buf.toString(); } /** * Encodes a byte array into Base64 format. * No blanks or line breaks are inserted in the output. * @param in An array containing the data bytes to be encoded. * @return A character array containing the Base64 encoded data. */ public static char[] encode (byte[] in) { return encode(in, 0, in.length); } /** * Encodes a byte array into Base64 format. * No blanks or line breaks are inserted in the output. * @param in An array containing the data bytes to be encoded. * @param iLen Number of bytes to process in <code>in</code>. * @return A character array containing the Base64 encoded data. */ public static char[] encode (byte[] in, int iLen) { return encode(in, 0, iLen); } /** * Encodes a byte array into Base64 format. * No blanks or line breaks are inserted in the output. * @param in An array containing the data bytes to be encoded. * @param iOff Offset of the first byte in <code>in</code> to be processed. * @param iLen Number of bytes to process in <code>in</code>, starting at <code>iOff</code>. * @return A character array containing the Base64 encoded data. */ public static char[] encode (byte[] in, int iOff, int iLen) { int oDataLen = (iLen*4+2)/3; // output length without padding int oLen = ((iLen+2)/3)*4; // output length including padding char[] out = new char[oLen]; int ip = iOff; int iEnd = iOff + iLen; int op = 0; while (ip < iEnd) { int i0 = in[ip++] & 0xff; int i1 = ip < iEnd ? in[ip++] & 0xff : 0; int i2 = ip < iEnd ? in[ip++] & 0xff : 0; int o0 = i0 >>> 2; int o1 = ((i0 & 3) << 4) | (i1 >>> 4); int o2 = ((i1 & 0xf) << 2) | (i2 >>> 6); int o3 = i2 & 0x3F; out[op++] = map1[o0]; out[op++] = map1[o1]; out[op] = op < oDataLen ? map1[o2] : '='; op++; out[op] = op < oDataLen ? map1[o3] : '='; op++; } return out; } /** * Decodes a string from Base64 format. * No blanks or line breaks are allowed within the Base64 encoded input data. * @param s A Base64 String to be decoded. * @return A String containing the decoded data. * @throws IllegalArgumentException If the input is not valid Base64 encoded data. */ public static String decodeString (String s) { return new String(decode(s)); } /** * Decodes a byte array from Base64 format and ignores line separators, tabs and blanks. * CR, LF, Tab and Space characters are ignored in the input data. * This method is compatible with <code>sun.misc.BASE64Decoder.decodeBuffer(String)</code>. * @param s A Base64 String to be decoded. * @return An array containing the decoded data bytes. * @throws IllegalArgumentException If the input is not valid Base64 encoded data. */ public static byte[] decodeLines (String s) { char[] buf = new char[s.length()]; int p = 0; for (int ip = 0; ip < s.length(); ip++) { char c = s.charAt(ip); if (c != ' ' && c != '\r' && c != '\n' && c != '\t') buf[p++] = c; } return decode(buf, 0, p); } /** * Decodes a byte array from Base64 format. * No blanks or line breaks are allowed within the Base64 encoded input data. * @param s A Base64 String to be decoded. * @return An array containing the decoded data bytes. * @throws IllegalArgumentException If the input is not valid Base64 encoded data. */ public static byte[] decode (String s) { return decode(s.toCharArray()); } /** * Decodes a byte array from Base64 format. * No blanks or line breaks are allowed within the Base64 encoded input data. * @param in A character array containing the Base64 encoded data. * @return An array containing the decoded data bytes. * @throws IllegalArgumentException If the input is not valid Base64 encoded data. */ public static byte[] decode (char[] in) { return decode(in, 0, in.length); } /** * Decodes a byte array from Base64 format. * No blanks or line breaks are allowed within the Base64 encoded input data. * @param in A character array containing the Base64 encoded data. * @param iOff Offset of the first character in <code>in</code> to be processed. * @param iLen Number of characters to process in <code>in</code>, starting at <code>iOff</code>. * @return An array containing the decoded data bytes. * @throws IllegalArgumentException If the input is not valid Base64 encoded data. */ public static byte[] decode (char[] in, int iOff, int iLen) { if (iLen%4 != 0) throw new IllegalArgumentException ("Length of Base64 encoded input string is not a multiple of 4."); while (iLen > 0 && in[iOff+iLen-1] == '=') iLen--; int oLen = (iLen*3) / 4; byte[] out = new byte[oLen]; int ip = iOff; int iEnd = iOff + iLen; int op = 0; while (ip < iEnd) { int i0 = in[ip++]; int i1 = in[ip++]; int i2 = ip < iEnd ? in[ip++] : 'A'; int i3 = ip < iEnd ? in[ip++] : 'A'; if (i0 > 127 || i1 > 127 || i2 > 127 || i3 > 127) throw new IllegalArgumentException ("Illegal character in Base64 encoded data."); int b0 = map2[i0]; int b1 = map2[i1]; int b2 = map2[i2]; int b3 = map2[i3]; if (b0 < 0 || b1 < 0 || b2 < 0 || b3 < 0) throw new IllegalArgumentException ("Illegal character in Base64 encoded data."); int o0 = ( b0 <<2) | (b1>>>4); int o1 = ((b1 & 0xf)<<4) | (b2>>>2); int o2 = ((b2 & 3)<<6) | b3; out[op++] = (byte)o0; if (op<oLen) out[op++] = (byte)o1; if (op<oLen) out[op++] = (byte)o2; } return out; } }
Datedifference.java
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package com.fpwd.common; import java.text.SimpleDateFormat; import java.util.Date; import java.util.MissingResourceException; import java.util.ResourceBundle; /** * * @author Gaurav Pathak * * This class is used to calculate the time difference from the date * value stored in Database. */ public class Datedifference { private int expiredhour; private int expiredmin; private int expiredsec; private int expireddays; private ResourceBundle rb2; private String msg = null; public Datedifference() throws NullPointerException, MissingResourceException { rb2 = ResourceBundle.getBundle("com.fpwd.commonconfig\\DB"); this.expiredhour = Integer.parseInt(rb2.getString("expiredhour")); this.expiredmin = Integer.parseInt(rb2.getString("expiredmin")); this.expiredsec = Integer.parseInt(rb2.getString("expiredsec")); this.expireddays = Integer.parseInt(rb2.getString("expireddays")); } /* * @param lastaccessdate * * @param todaydate return String */ public String datevalidator(String lastaccessdate, String todaydate) throws Exception { String dateStart = lastaccessdate; String dateStop = todaydate; // HH converts hour in 24 hours format (0-23), day calculation SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date d1 = null; Date d2 = null; try { d1 = format.parse(dateStart); d2 = format.parse(dateStop); // in milliseconds long diff = d2.getTime() - d1.getTime(); long diffSeconds = diff / 1000 % 60; long diffMinutes = diff / (60 * 1000) % 60; long diffHours = diff / (60 * 60 * 1000) % 24; long diffDays = diff / (24 * 60 * 60 * 1000); // System.out.print(diffDays + " days, "); // System.out.print(diffHours + " hours, "); // System.out.print(diffMinutes + " minutes, "); // System.out.print(diffSeconds + " seconds."); /* * Here according to the properties values , reset password link is * valid for 1 hour only from the time its delivered to recipent. */ if ((diffHours > expiredhour && diffMinutes >= expiredmin && diffSeconds >= expiredsec) || diffDays >= expireddays) { // if(diffMinutes>4){ msg = "invalid"; } else { msg = "valid"; } } catch (Exception e) { throw new Exception( "Exception occured in date validator:- Cause->[" + e + "]"); } return msg; } }
DBconnection.java
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package com.fpwd.common; import java.sql.Connection; import java.sql.DriverManager; import java.util.ResourceBundle; /** * * @author gaurav pathak */ public class DBconnection { String driver = null; String url = null; Connection con = null; ResourceBundle rb = null; public DBconnection() { rb = ResourceBundle.getBundle("com.fpwd.commonconfig\\DB"); this.driver = rb.getString("driver"); this.url = rb.getString("url"); } public Connection getConnection() throws Exception { try { Class.forName(driver); this.con = DriverManager.getConnection(url); } catch (Exception e) { throw new Exception("Exception occured at getConnection " + e.getMessage()); } return con; } }
SendMail.java
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package com.fpwd.common; /** * * @author gaurav pathak */ /* * Purpose of this class to send the mail. * It can send the text as well as attachments based on the inputs. */ import java.io.FileInputStream; import java.util.Date; import java.util.Properties; import java.util.ResourceBundle; import javax.activation.DataHandler; import javax.activation.FileDataSource; import javax.mail.Authenticator; import javax.mail.Message; import javax.mail.Multipart; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeBodyPart; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeMultipart; public class SendMail { FileInputStream fin; Properties prop = new Properties(); public String mail_from = "", mail_pwd = ""; public String host = ""; public String port = ""; public String authtype = ""; public String key = ""; public SendMail() { try { ResourceBundle rb2 = ResourceBundle .getBundle("com.fpwd.commonconfig\\mail-config"); mail_from = rb2.getString("mail-from"); // System.out.println("Mail Sender :" + mail_from); mail_pwd = rb2.getString("mail-pwd"); // System.out.println("Sender Password: " + mail_pwd); host = rb2.getString("host"); // System.out.println("Host name: " + host); port = rb2.getString("port"); // System.out.println("port: " + port); authtype = rb2.getString("authtype"); // System.out.println("authtype is :" + authtype); key = rb2.getString("key"); // System.out.println("key :" + key); } catch (Exception e) { System.out .println("Exception occured at SendMail constructor " + e); } } public boolean sendMail(String to, String[] cc, String subject, String content, String attachment) throws Exception { // System.out.println("Inside sendMail block"); boolean sent = true; try { // Properties props = new Properties(); //System.out.println("inside properties"); props.put("mail.smtp.auth", authtype); props.put("mail.smtp.host", host); props.put("mail.smtp.port", port); props.put("mail.smtp.debug", "true"); Authenticator auth = new SMTPAuthenticator(); Session session = Session.getInstance(props, auth); //System.out.println("session object"); session.setDebug(true); MimeMessage msg = new MimeMessage(session); msg.setFrom(new InternetAddress(mail_from)); //System.out.println("Mail from Address appended succesfully"); InternetAddress[] toAddress = { new InternetAddress(to) }; msg.setRecipients(Message.RecipientType.TO, toAddress); msg.setSubject(subject); //System.out.println("Mail Message appended succesfully"); // create and fill the first message part MimeBodyPart mbp1 = new MimeBodyPart(); mbp1.setText(content); // create the second message part MimeBodyPart mbp2 = new MimeBodyPart(); // attach the file to the message if (attachment != null) { FileDataSource fds = new FileDataSource(attachment); mbp2.setDataHandler(new DataHandler(fds)); mbp2.setFileName(fds.getName()); } // create the Multipart and add its parts to it // System.out.println("before creating multipart object"); Multipart mp = new MimeMultipart(); mp.addBodyPart(mbp1); if (attachment != null) { mp.addBodyPart(mbp2); } //System.out.println("Body text appended successfully"); // add the Multipart to the message msg.setContent(mp); // set the Date: header msg.setSentDate(new Date()); // send the message Transport.send(msg); System.out.println("Mail Send sucessfully"); } catch (Exception e) { //System.out.println("Exception occured at SendMail " + e); sent = false; throw new Exception("Exception occured at SendMail " + e); } return sent; } private class SMTPAuthenticator extends javax.mail.Authenticator { @Override public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(mail_from, mail_pwd); } } }

DAO

FPDao.java
package com.fpwd.DAO; import java.sql.Connection; import java.sql.ResultSet; import java.sql.Statement; import java.util.HashMap; import java.util.MissingResourceException; import java.util.ResourceBundle; import com.fpwd.common.DBconnection; import com.fpwd.common.Datedifference; import com.fpwd.common.SendMail; import com.fpwd.util.Utility; public class FPDao { DBconnection dBconn; Statement stmt; SendMail mail; ResourceBundle bundle; public FPDao() throws MissingResourceException, NullPointerException { this.bundle = ResourceBundle.getBundle("com.fpwd.commonconfig\\DB"); } public HashMap<String , String> insertData(String emailId) throws Exception { HashMap<String , String> dataMap = new HashMap<String , String>(); Connection con = null; try { ResultSet rset; String token = Utility.getInstance().generateRandomToken(); dBconn = new DBconnection(); con = dBconn.getConnection(); stmt = con.createStatement(); rset = stmt .executeQuery("select * from Forgetpasslinktab where Fp_email='" + emailId + "'"); if (rset.next()) { int updatecount = stmt .executeUpdate("update Forgetpasslinktab set Fp_token='" + token + "',status='REQ',Fp_accessedtime='" + Utility.getInstance().getDate() + "' where Fp_email='" + emailId + "'"); if (updatecount >= 1) { mail = new SendMail(); Boolean b = mail.sendMail( emailId, null, "New Password for Account", Utility.getInstance().frameResetLink(token, bundle.getString("forgetpasswordlink"), emailId), null); if (b) { dataMap.put("RESULT", "SUCCESS"); dataMap.put("REASON", "Your password reset link is send to your registred Email id"); } else { dataMap.put("RESULT", "FAILURE"); dataMap.put("REASON", "Problem in resetting the password. Please try after sometime"); } } else { dataMap.put("RESULT", "FAILURE"); dataMap.put("REASON", "Unable to update in DataBase"); } } else { dataMap.put("RESULT", "FAILURE"); dataMap.put("REASON", "Email ID does not exist"); } } catch (Exception e) { dataMap.put("RESULT", "EXCEPTION"); dataMap.put("REASON", e.getMessage()); } finally { con.close(); } return dataMap; } public HashMap<String , String> insertData(String utid, String emailId, String newPassword) throws Exception { HashMap<String , String> dataMap = new HashMap<String , String>(); Connection con = null; try { dBconn = new DBconnection(); con = dBconn.getConnection(); stmt = con.createStatement(); int updatecount = stmt .executeUpdate("update Forgetpasslinktab set Fp_password='" + newPassword + "',status='CLOSE' where Fp_email='" + emailId + "' and Fp_token='" + utid + "'"); if (updatecount >= 1) { dataMap.put("RESULT", "SUCCESS"); dataMap.put("REASON", "Password changed successfully"); } else { dataMap.put("RESULT", "FAILURE"); dataMap.put("REASON", "Unable to change the password<br />Reason:- Invalid EmailId"); } } catch (Exception e) { dataMap.put("RESULT", "EXCEPTION"); dataMap.put("REASON", e.getMessage()); } finally { con.close(); } return dataMap; } public HashMap<String , String> verifyRequest(String utid, String emailId) throws Exception { HashMap<String , String> dataMap = new HashMap<String , String>(); Connection con = null; try { String accesstime = null; String status = null; ResultSet rset; dBconn = new DBconnection(); con = dBconn.getConnection(); stmt = con.createStatement(); rset = stmt .executeQuery("select Fp_accessedtime,status from Forgetpasslinktab where Fp_token='" + utid + "'and Fp_email='"+emailId+"'"); if (rset.next()) { accesstime = rset.getString("Fp_accessedtime"); status = rset.getString("status"); String statusmessage = new Datedifference().datevalidator( accesstime, Utility.getInstance().getDate()); if (statusmessage.equalsIgnoreCase("invalid") || status.equalsIgnoreCase("CLOSE") || status.equalsIgnoreCase("CANCEL")) { //System.out.println("in invalid block"); stmt.executeUpdate("update Forgetpasslinktab set status='CANCEL' where Fp_token='" + utid + "'and Fp_email='"+emailId+"'"); dataMap.put("RESULT", "FAILURE"); dataMap.put("REASON", "TIMEOUT"); } else { dataMap.put("RESULT", "SUCCESS"); dataMap.put("REASON", bundle.getString("redirectUrl")); } } else { dataMap.put("RESULT", "FAILURE"); dataMap.put("REASON", "INVALIDREQ"); } } catch (Exception e) { dataMap.put("RESULT", "EXCEPTION"); dataMap.put("REASON", e.getMessage()); } finally { con.close(); } return dataMap; } }

Utility Class

Utility.java
package com.fpwd.util; import java.text.SimpleDateFormat; import com.fpwd.common.AESEncryption; import com.fpwd.common.Base64Coder; /** * * @author Gaurav Pathak * */ /* * Utility class is Singleton */ public class Utility implements Cloneable { private static Utility instance; private Utility() { // no-ops } public static synchronized Utility getInstance() { if (instance == null) { instance = new Utility(); } return instance; } public String getDate() { String date = null; SimpleDateFormat df1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); date = df1.format(new java.util.Date()); return date; } public String generateRandomToken() { long timeSeed = System.nanoTime(); // to get the current date time value double randSeed = Math.random() * 1000; // random number generation long midSeed = (long) (timeSeed * randSeed); // mixing up the time and // rand number. String s = midSeed + ""; String subStr = s.substring(0, 8); return subStr; } public String frameResetLink(String utid, String resetUrl, String emailId) throws Exception { String encrypt_token = null; String encrypt_email = null; String sub_tok = null; String email_tok = null; /* * encrypt token value use AES encryption(Any encryption method can be * used) */ sub_tok = AESEncryption.encrypt(utid); /* * again encrypted using base64 encoding */ encrypt_token = Base64Coder.encodeString(sub_tok); /* * encrypt eamil value use AES encryption(Any encryption method can be * used) */ email_tok = AESEncryption.encrypt(emailId); /* * again encrypted using base64 encoding */ encrypt_email = Base64Coder.encodeString(email_tok); // creating Reset Link String resetlink = resetUrl + "?USERID=" + encrypt_email + "&UTID=" + encrypt_token; String link = " Dear Customer:-" + "\n Please follow the link to reset password\n" + resetlink + ""; return link; } public String decryptData(String encryptedData) throws Exception { String decrypteddata = null; try { decrypteddata = AESEncryption.decrypt(Base64Coder .decodeString(encryptedData)); } catch (Exception e) { throw new Exception( "Error while authenticating user data<br>'Invalid Request found'"); } return decrypteddata; } @Override protected Object clone() throws CloneNotSupportedException { throw new CloneNotSupportedException(this.getClass().getSimpleName() + " probhited Cloning"); } }

Properties files

DB.properties
# Database driver class FOR SQL SERVER driver=com.microsoft.sqlserver.jdbc.SQLServerDriver #LOCAL DEVP PROPERITES url=jdbc:sqlserver://youripaddress;databaseName=Database;SelectMethod=Cursor;user=test;password=test#! #forgetpassword using link properties forgetpasswordlink=http://youripaddress:port/GP_ForgetPassword/Authenticate redirectUrl=http://youripaddress:port/GP_ForgetPassword/SetNewPassword.jsp #AES secret key must be of length 16. secretkeyforpass=gauravpathak1443 expiredhour=1 expiredmin=0 expiredsec=0 expireddays=1
mail-config.properties
#Author:Gaurav Pathak # properties used for sending mail #mail-from=Sender email address #mail-pwd=Sender password #host= Mention Hostname #port= Mention your port number here #authtype=true #key=mail

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G-InfoArena

Monday, 6 May 2013

Code for forgot password module using JSP and Servlet

Following directory Structure you need to create for this(Tomcat directory i had used)

WEB.xml

JSP files

CSS File

Servlet

Common Classes

DAO

Utility Class

Properties files

Friday, 3 May 2013

code to create a Stylish Html Table with Rows having Alternate Colours

* JavaScript code

Stylesheet to used....

paste the below code on the page in which u want alternate colour

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