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 Security; import Database.DBLoginFinder; import Logger.FileLogger; import java.util.ArrayList; import java.util.Properties; import java.util.logging.Level; import java.util.logging.Logger; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import org.apache.commons.lang3.RandomStringUtils; /** * Trieda EmailSender sli na posielanie automaticky generovanch emailov pouvateovi. * @author Matej Pazdi? */ public class EmailSender { private String server = null; private String userName = null; private String password = null; private final String system = System.getProperty("os.name"); /** * Kontruktor triedy EmailSender. * @param smtpHost - adresa servera odchdzjch sprv * @param userName - prihlasovacie meno na emailov server * @param password - heslo na emailov server */ public EmailSender(String smtpHost, String userName, String password) { this.server = smtpHost; this.userName = userName; this.password = password; } /** * Metda sendUerAuthEmail sli na generovanie a zaslanie potvrdzovacieho emailu, ktor sli na overenie zadanho emailu pouvatea, novo registrovanmu pouvateovi. * @param email - emailov adresa pouvatea, ktormu bude zalan email * @param userToken - jedine?n 32 znakov identifiktor registrcie pouvatea * @param firstName - krstn meno pouvatea * @param lastName - priezvisko pouvatea */ public void sendUserAuthEmail(String email, String userToken, String firstName, String lastName) { String name = "NONE"; String surname = "NONE"; if (firstName != null) { name = firstName; } if (lastName != null) { surname = lastName; } Properties props = new Properties(); props.put("mail.smtp.host", server); props.put("mail.smtp.socketFactory.port", "465"); props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); props.put("mail.smtp.auth", "true"); props.put("mail.smtp.port", "465"); Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() { protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(userName, password); } }); try { Message message = new MimeMessage(session); message.setFrom(new InternetAddress("skuska.api.3@gmail.com")); message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(email)); message.setSubject("Confirmation email from GPSWebApp server!!!"); //message.setText(userToken); message.setSubject("Confirmation email from GPSWebApp server!!!"); if (system.startsWith("Windows")) { message.setContent("<html><head><meta charset=\"Windows-1250\"></head><body><h1>Hello " + name + " " + surname + ", please confirm your email by clicking on link ...</h1><a href=http://localhost:8084/GPSWebApp/TryToAcceptUser.jsp?token=" + userToken + "&email=" + email + ">LINK</a></body></html>", "text/html"); } else { message.setContent("<html><head><meta charset=\"Windows-1250\"></head><body><h1>Hello " + name + " " + surname + ", please confirm your email by clicking on link ...</h1><a href=http://gps.kpi.fei.tuke.sk/TryToAcceptUser.jsp?token=" + userToken + "&email=" + email + ">LINK</a></body></html>", "text/html"); } Transport.send(message); FileLogger.getInstance().createNewLog("Successfuly sent email to user " + email + "."); } catch (MessagingException e) { FileLogger.getInstance().createNewLog("ERROR: cannot sent email to user " + email + "."); } } /** * Metda sendUserPasswordRecoveryEmail je ur?en na generovbanie a zaslanie pouvateovi email s obnovenm jeho zabudnutho hesla. * @param email - pouvatesk email */ public void sendUserPasswordRecoveryEmail(String email) { try { DBLoginFinder finder = new DBLoginFinder(); ArrayList<String> results = finder.getUserInformation(email); String name = "NONE"; String surname = "NONE"; if (results.get(0) != null) { name = results.get(0); } if (results.get(1) != null) { surname = results.get(1); } Properties props = new Properties(); props.put("mail.smtp.host", server); props.put("mail.smtp.socketFactory.port", "465"); props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); props.put("mail.smtp.auth", "true"); props.put("mail.smtp.port", "465"); Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() { protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(userName, password); } }); try { Message message = new MimeMessage(session); message.setFrom(new InternetAddress("skuska.api.3@gmail.com")); message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(email)); message.setSubject("Your password to GPSWebApp server!!!"); //message.setText(userToken); message.setSubject("Your password to GPSWebApp server!!!"); message.setContent("<html><head><meta charset=\"Windows-1250\"></head><body><h1>Hello " + name + " " + surname + ",</h1><br>your paassword to access GPSWebApp server is <b>" + results.get(5) + "</b>. <br>Please take note that you can change it in your settings. Have a pleasant day.</body></html>", "text/html"); Transport.send(message); FileLogger.getInstance() .createNewLog("Successfuly sent password recovery email to user " + email + "."); } catch (MessagingException e) { FileLogger.getInstance() .createNewLog("ERROR: Cannot sent password recovery email to user " + email + "."); } } catch (Exception ex) { FileLogger.getInstance() .createNewLog("ERROR: Cannot sent password recovery email to user " + email + "."); } } /** * Metda getNewUserToken je pomocn metda ur?en na generovanie jedine?nho 32 znakovho identifiktora registrcie pouvatea, ktor je ur?en na overenie sprvnosti zadanho emalu pouvateom. * @return Nvratov adresa je 32 znakov jedine?n identifiktor. */ public String getNewUserToken() { return RandomStringUtils.randomAlphanumeric(32); } }