feat: testing contact form features

contact-api/src/mailer.ts

@@ -0,0 +1,65 @@
+import nodemailer from "nodemailer";
+import { config } from "./config.js";
+import type { ContactRequest } from "./validation.js";
+
+const transporter = nodemailer.createTransport({
+  host: config.SMTP_HOST,
+  port: config.SMTP_PORT,
+  secure: config.SMTP_SECURE,
+  requireTLS: config.SMTP_REQUIRE_TLS,
+  auth: {
+    user: config.SMTP_USER,
+    pass: config.SMTP_PASS,
+  },
+  tls: {
+    rejectUnauthorized: true,
+  },
+});
+
+const escapeHtml = (value: string): string =>
+  value
+    .replace(/&/g, "&")
+    .replace(/</g, "&lt;")
+    .replace(/>/g, "&gt;")
+    .replace(/"/g, "&quot;")
+    .replace(/'/g, "&#039;");
+
+const newlineToBreaks = (value: string): string =>
+  escapeHtml(value).replace(/\n/g, "<br>");
+
+export async function verifyMailerConnection(): Promise<void> {
+  await transporter.verify();
+}
+
+export async function sendContactEmail(payload: ContactRequest, sourceIp: string): Promise<void> {
+  const receivedAt = new Date().toISOString();
+  const subject = `${config.MAIL_SUBJECT_PREFIX} ${payload.name}`;
+
+  const textBody = [
+    `Name: ${payload.name}`,
+    `Email: ${payload.email}`,
+    `Source IP: ${sourceIp || "unknown"}`,
+    `Received At: ${receivedAt}`,
+    "",
+    "Message:",
+    payload.message,
+  ].join("\n");
+
+  const htmlBody = `
+    <h2>Portfolio Contact Submission</h2>
+    <p><strong>Name:</strong> ${escapeHtml(payload.name)}</p>
+    <p><strong>Email:</strong> ${escapeHtml(payload.email)}</p>
+    <p><strong>Source IP:</strong> ${escapeHtml(sourceIp || "unknown")}</p>
+    <p><strong>Received At:</strong> ${escapeHtml(receivedAt)}</p>
+    <p><strong>Message:</strong><br>${newlineToBreaks(payload.message)}</p>
+  `;
+
+  await transporter.sendMail({
+    from: `"${config.MAIL_FROM_NAME}" <${config.MAIL_FROM_ADDRESS}>`,
+    to: config.MAIL_TO_ADDRESS,
+    replyTo: payload.email,
+    subject,
+    text: textBody,
+    html: htmlBody,
+  });
+}