Proper email attachment handling
This commit is contained in:
Roman Krček
21
package-lock.json
generated
21
package-lock.json
generated
@@ -12,7 +12,8 @@
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"@supabase/supabase-js": "^2.50.0",
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"@sveltejs/adapter-node": "^5.2.12",
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"googleapis": "^150.0.1",
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"papaparse": "^5.5.3"
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"papaparse": "^5.5.3",
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"quoted-printable": "^1.0.1"
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},
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"devDependencies": {
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"@sveltejs/kit": "^2.16.0",
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@@ -2691,6 +2692,18 @@
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"url": "https://github.com/sponsors/ljharb"
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}
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},
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"node_modules/quoted-printable": {
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"version": "1.0.1",
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"resolved": "https://registry.npmjs.org/quoted-printable/-/quoted-printable-1.0.1.tgz",
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"integrity": "sha512-cihC68OcGiQOjGiXuo5Jk6XHANTHl1K4JLk/xlEJRTIXfy19Sg6XzB95XonYgr+1rB88bCpr7WZE7D7AlZow4g==",
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"license": "MIT",
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"dependencies": {
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"utf8": "^2.1.0"
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},
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"bin": {
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"quoted-printable": "bin/quoted-printable"
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}
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},
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"node_modules/readdirp": {
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"version": "4.1.2",
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"resolved": "https://registry.npmjs.org/readdirp/-/readdirp-4.1.2.tgz",
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@@ -3050,6 +3063,12 @@
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"integrity": "sha512-XdVKMF4SJ0nP/O7XIPB0JwAEuT9lDIYnNsK8yGVe43y0AWoKeJNdv3ZNWh7ksJ6KqQFjOO6ox/VEitLnaVNufw==",
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"license": "BSD"
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},
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"node_modules/utf8": {
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"version": "2.1.2",
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"resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.2.tgz",
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"integrity": "sha512-QXo+O/QkLP/x1nyi54uQiG0XrODxdysuQvE5dtVqv7F5K2Qb6FsN+qbr6KhF5wQ20tfcV3VQp0/2x1e1MRSPWg==",
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"license": "MIT"
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},
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"node_modules/util-deprecate": {
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"version": "1.0.2",
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"resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
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@@ -33,6 +33,7 @@
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"@supabase/supabase-js": "^2.50.0",
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"@sveltejs/adapter-node": "^5.2.12",
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"googleapis": "^150.0.1",
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"papaparse": "^5.5.3"
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"papaparse": "^5.5.3",
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"quoted-printable": "^1.0.1"
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}
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}
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@@ -1,5 +1,6 @@
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import { google } from 'googleapis';
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import { env } from '$env/dynamic/private';
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import quotedPrintable from 'quoted-printable'; // tiny, zero-dep package
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export const scopes = ['https://www.googleapis.com/auth/gmail.send'];
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@@ -27,51 +28,73 @@ export async function exchangeCodeForTokens(code: string) {
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export async function sendGmail(
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refreshToken: string,
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{ to, subject, text }: { to: string; subject: string; text: string }
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{ to, subject, text, qr_code }: { to: string; subject: string; text: string; qr_code: string }
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) {
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const oauth = getOAuthClient();
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oauth.setCredentials({ refresh_token: refreshToken });
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const gmail = google.gmail({ version: 'v1', auth: oauth });
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const wrappedHtml = `<!DOCTYPE html>
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const message_html =
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`<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>${subject}</title>
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<link href="https://fonts.googleapis.com/css?family=Lato:400,700&display=swap" rel="stylesheet">
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<head>
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<style>
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body { font-family: 'Lato', Arial, sans-serif; margin: 0; padding: 0; background: #f9f9f9; }
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.container {
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max-width: 480px;
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margin: 0 auto;
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background: #fff;
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border-radius: 8px;
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box-shadow: 0 2px 8px rgba(0,0,0,0.04);
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padding: 24px 16px;
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word-break: break-word;
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}
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@media (max-width: 600px) {
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.container { padding: 16px 4px; }
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}
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@import url('https://fonts.googleapis.com/css2?family=Lato&display=swap');
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</style>
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</head>
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<body>
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<div class="container">${text}</div>
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</body>
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</head>
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<body style="font-family: 'Lato', sans-serif; background-color: #f9f9f9; padding: 20px; margin: 0;">
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<div style="max-width: 600px; margin: auto; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.05);">
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<p style="white-space: pre-line;font-size: 16px; line-height: 1.5; color: #333;">${text}</p>
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<img src="cid:qrCode1" alt="QR Code" style="display: block; margin: 20px auto; max-width: 50%; min-width: 200px; height: auto;" />
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<div style="width: 100%; display: flex; flex-direction: row; justify-content: space-between">
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<div style="height: 4px; width: 20%; background: #00aeef;"></div>
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<div style="height: 4px; width: 20%; background: #ec008c;"></div>
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<div style="height: 4px; width: 20%; background: #7ac143;"></div>
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<div style="height: 4px; width: 20%; background: #f47b20;"></div>
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<div style="height: 4px; width: 20%; background: #2e3192;"></div>
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</div>
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<div style="font-size: 12px; color: #999; padding-top: 0px; margin-top: 10px; line-height: 1.5; ">
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<p>This email has been generated with the help of *insert software name*</p>
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</div>
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</div>
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</body>
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</html>`;
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const message = [
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`To: ${to}`,
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'Content-Type: text/html; charset="UTF-8"',
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'Content-Transfer-Encoding: 7bit',
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`Subject: ${subject}`,
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'',
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wrappedHtml
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].join('\n');
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const raw = Buffer.from(message).toString('base64url');
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const boundary = 'BOUNDARY';
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const nl = '\r\n'; // RFC-5322 line ending
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const htmlQP = quotedPrintable.encode(message_html);
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const qrLines = qr_code.replace(/.{1,76}/g, '$&' + nl);
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const rawParts = [
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'MIME-Version: 1.0',
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`To: ${to}`,
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`Subject: ${subject}`,
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`Content-Type: multipart/related; boundary="${boundary}"`,
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'',
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`--${boundary}`,
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'Content-Type: text/html; charset="UTF-8"',
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'Content-Transfer-Encoding: quoted-printable',
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'',
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htmlQP,
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'',
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`--${boundary}`,
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'Content-Type: image/png',
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'Content-Transfer-Encoding: base64',
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'Content-ID: <qrCode1>',
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'Content-Disposition: inline; filename="qr.png"',
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'',
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qrLines,
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'',
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`--${boundary}--`,
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''
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];
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const rawMessage = rawParts.join(nl);
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const raw = Buffer.from(rawMessage).toString('base64url');
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await gmail.users.messages.send({
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userId: 'me',
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@@ -36,13 +36,13 @@ export const GET: RequestHandler = async ({ url }) => {
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/* ───────────── POST ───────────── */
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export const POST: RequestHandler = async ({ request }) => {
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const { action, refreshToken, to, subject, text } = await request.json();
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const { action, refreshToken, to, subject, text, qr_code } = await request.json();
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/* send e-mail */
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if (action === 'send') {
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if (!refreshToken) return new Response('Missing token', { status: 401 });
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try {
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await sendGmail(refreshToken, { to, subject, text });
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await sendGmail(refreshToken, { to, subject, text, qr_code });
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return json({ ok: true });
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} catch (err) {
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return new Response((err as Error).message, { status: 500 });
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