first commit: Complete phishing test management panel with Node.js backend and React frontend

backend/src/services/mail.service.js

@@ -0,0 +1,96 @@
+const nodemailer = require('nodemailer');
+const handlebars = require('handlebars');
+const logger = require('../config/logger');
+const { Settings } = require('../models');
+
+class MailService {
+  constructor() {
+    this.transporter = null;
+  }
+
+  async initializeTransporter() {
+    try {
+      // Get Gmail settings from database
+      const gmailUser = await Settings.findOne({ where: { key: 'gmail_user' } });
+      const gmailPassword = await Settings.findOne({ where: { key: 'gmail_password' } });
+      const gmailFromName = await Settings.findOne({ where: { key: 'gmail_from_name' } });
+
+      // Fallback to env variables
+      const user = gmailUser?.value || process.env.GMAIL_USER;
+      const pass = gmailPassword?.value || process.env.GMAIL_APP_PASSWORD;
+      const fromName = gmailFromName?.value || process.env.GMAIL_FROM_NAME || 'Güvenlik Ekibi';
+
+      if (!user || !pass) {
+        throw new Error('Gmail credentials not configured');
+      }
+
+      this.transporter = nodemailer.createTransport({
+        service: 'gmail',
+        auth: {
+          user,
+          pass,
+        },
+      });
+
+      this.fromAddress = `"${fromName}" <${user}>`;
+
+      // Verify transporter
+      await this.transporter.verify();
+      logger.info('Mail service initialized successfully');
+
+      return true;
+    } catch (error) {
+      logger.error('Failed to initialize mail service:', error);
+      throw error;
+    }
+  }
+
+  async sendMail(to, subject, htmlBody) {
+    try {
+      if (!this.transporter) {
+        await this.initializeTransporter();
+      }
+
+      const mailOptions = {
+        from: this.fromAddress,
+        to,
+        subject,
+        html: htmlBody,
+      };
+
+      const info = await this.transporter.sendMail(mailOptions);
+
+      logger.info(`Mail sent to ${to}: ${info.messageId}`);
+
+      return {
+        success: true,
+        messageId: info.messageId,
+      };
+    } catch (error) {
+      logger.error(`Failed to send mail to ${to}:`, error);
+      throw error;
+    }
+  }
+
+  renderTemplate(templateHtml, data) {
+    try {
+      const template = handlebars.compile(templateHtml);
+      return template(data);
+    } catch (error) {
+      logger.error('Failed to render template:', error);
+      throw error;
+    }
+  }
+
+  async testConnection() {
+    try {
+      await this.initializeTransporter();
+      return { success: true, message: 'Gmail connection successful' };
+    } catch (error) {
+      return { success: false, error: error.message };
+    }
+  }
+}
+
+module.exports = new MailService();
+