81 lines
2.0 KiB
TypeScript
81 lines
2.0 KiB
TypeScript
import { google } from 'googleapis';
|
|
import { env } from '$env/dynamic/private';
|
|
|
|
export const scopes = ['https://www.googleapis.com/auth/gmail.send'];
|
|
|
|
export function getOAuthClient() {
|
|
return new google.auth.OAuth2(
|
|
env.GOOGLE_CLIENT_ID,
|
|
env.GOOGLE_CLIENT_SECRET,
|
|
env.GOOGLE_REDIRECT_URI
|
|
);
|
|
}
|
|
|
|
export function createAuthUrl() {
|
|
return getOAuthClient().generateAuthUrl({
|
|
access_type: 'offline',
|
|
prompt: 'consent',
|
|
scope: scopes
|
|
});
|
|
}
|
|
|
|
export async function exchangeCodeForTokens(code: string) {
|
|
const { tokens } = await getOAuthClient().getToken(code);
|
|
if (!tokens.refresh_token) throw new Error('No refresh_token returned');
|
|
return tokens.refresh_token;
|
|
}
|
|
|
|
export async function sendGmail(
|
|
refreshToken: string,
|
|
{ to, subject, text }: { to: string; subject: string; text: string }
|
|
) {
|
|
const oauth = getOAuthClient();
|
|
oauth.setCredentials({ refresh_token: refreshToken });
|
|
|
|
const gmail = google.gmail({ version: 'v1', auth: oauth });
|
|
|
|
const wrappedHtml = `<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>${subject}</title>
|
|
<link href="https://fonts.googleapis.com/css?family=Lato:400,700&display=swap" rel="stylesheet">
|
|
<style>
|
|
body { font-family: 'Lato', Arial, sans-serif; margin: 0; padding: 0; background: #f9f9f9; }
|
|
.container {
|
|
max-width: 480px;
|
|
margin: 0 auto;
|
|
background: #fff;
|
|
border-radius: 8px;
|
|
box-shadow: 0 2px 8px rgba(0,0,0,0.04);
|
|
padding: 24px 16px;
|
|
word-break: break-word;
|
|
}
|
|
@media (max-width: 600px) {
|
|
.container { padding: 16px 4px; }
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<div class="container">${text}</div>
|
|
</body>
|
|
</html>`;
|
|
|
|
const message = [
|
|
`To: ${to}`,
|
|
'Content-Type: text/html; charset="UTF-8"',
|
|
'Content-Transfer-Encoding: 7bit',
|
|
`Subject: ${subject}`,
|
|
'',
|
|
wrappedHtml
|
|
].join('\n');
|
|
|
|
const raw = Buffer.from(message).toString('base64url');
|
|
|
|
await gmail.users.messages.send({
|
|
userId: 'me',
|
|
requestBody: { raw }
|
|
});
|
|
}
|