/** * Copyright 2017-2020 the original author or authors from the JHipster Online project. * * This file is part of the JHipster Online project, see https://github.com/jhipster/jhipster-online * for more information. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package io.github.jhipster.online.service; import io.github.jhipster.online.domain.User; import io.github.jhipster.config.JHipsterProperties; import java.nio.charset.StandardCharsets; import java.util.Locale; import javax.mail.MessagingException; import javax.mail.internet.MimeMessage; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.MessageSource; import org.springframework.mail.MailException; import org.springframework.mail.javamail.JavaMailSender; import org.springframework.mail.javamail.MimeMessageHelper; import org.springframework.scheduling.annotation.Async; import org.springframework.stereotype.Service; import org.thymeleaf.context.Context; import org.thymeleaf.spring5.SpringTemplateEngine; /** * Service for sending emails. * <p> * We use the {@link Async} annotation to send emails asynchronously. */ @Service public class MailService { private final Logger log = LoggerFactory.getLogger(MailService.class); private static final String USER = "user"; private static final String BASE_URL = "baseUrl"; private final JHipsterProperties jHipsterProperties; private final JavaMailSender javaMailSender; private final MessageSource messageSource; private final SpringTemplateEngine templateEngine; public MailService(JHipsterProperties jHipsterProperties, JavaMailSender javaMailSender, MessageSource messageSource, SpringTemplateEngine templateEngine) { this.jHipsterProperties = jHipsterProperties; this.javaMailSender = javaMailSender; this.messageSource = messageSource; this.templateEngine = templateEngine; } public boolean isEnabled() { return this.jHipsterProperties.getMail().isEnabled(); } @Async public void sendEmail(String to, String subject, String content, boolean isMultipart, boolean isHtml) { log.debug("Send email[multipart '{}' and html '{}'] to '{}' with subject '{}' and content={}", isMultipart, isHtml, to, subject, content); // Prepare message using a Spring helper MimeMessage mimeMessage = javaMailSender.createMimeMessage(); try { MimeMessageHelper message = new MimeMessageHelper(mimeMessage, isMultipart, StandardCharsets.UTF_8.name()); message.setTo(to); message.setFrom("JHipster Online <" + jHipsterProperties.getMail().getFrom() + ">"); message.setSubject(subject); message.setText(content, isHtml); javaMailSender.send(mimeMessage); log.debug("Sent email to User '{}'", to); } catch (MailException | MessagingException e) { log.warn("Email could not be sent to user '{}'", to, e); } } @Async public void sendEmailFromTemplate(User user, String templateName, String titleKey) { if (user.getEmail() == null) { log.debug("Email doesn't exist for user '{}'", user.getLogin()); return; } Locale locale = Locale.forLanguageTag(user.getLangKey()); Context context = new Context(locale); context.setVariable(USER, user); context.setVariable(BASE_URL, jHipsterProperties.getMail().getBaseUrl()); String content = templateEngine.process(templateName, context); String subject = messageSource.getMessage(titleKey, null, locale); sendEmail(user.getEmail(), subject, content, false, true); } @Async public void sendActivationEmail(User user) { log.debug("Sending activation email to '{}'", user.getEmail()); sendEmailFromTemplate(user, "mail/activationEmail", "email.activation.title"); } @Async public void sendCreationEmail(User user) { log.debug("Sending creation email to '{}'", user.getEmail()); sendEmailFromTemplate(user, "mail/creationEmail", "email.activation.title"); } @Async public void sendPasswordResetMail(User user) { log.debug("Sending password reset email to '{}'", user.getEmail()); sendEmailFromTemplate(user, "mail/passwordResetEmail", "email.reset.title"); } }