martbost
48 lines
1.9 KiB
JavaScript
48 lines
1.9 KiB
JavaScript
// Outbound mail via SendGrid v3 (domain-authenticated linkspin-test.saasy.top).
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// Key sources: SENDGRID_KEY env, else DATA_DIR/sendgrid.key in the volume.
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// No key = email sign-in stays feature-flagged off in production.
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const fs = require('fs');
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const path = require('path');
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const https = require('https');
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let DATA_DIR = null;
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const FROM = { email: 'no-reply@linkspin-test.saasy.top', name: 'LinkSpin' };
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function init(opts) { DATA_DIR = opts.dataDir; }
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function key() {
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if (process.env.SENDGRID_KEY) return process.env.SENDGRID_KEY.trim();
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try { return fs.readFileSync(path.join(DATA_DIR, 'sendgrid.key'), 'utf8').trim(); } catch (e) { return ''; }
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}
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function hasKey() { return !!key(); }
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function send(to, subject, text) {
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return new Promise((resolve, reject) => {
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const body = JSON.stringify({
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personalizations: [{ to: [{ email: to }] }],
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from: FROM,
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subject,
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content: [{ type: 'text/plain', value: text }]
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});
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const req = https.request({ hostname: 'api.sendgrid.com', path: '/v3/mail/send', method: 'POST',
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headers: { Authorization: 'Bearer ' + key(), 'Content-Type': 'application/json',
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'Content-Length': Buffer.byteLength(body) }, timeout: 15000 },
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res => {
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let d = '';
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res.on('data', c => d += c);
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res.on('end', () => res.statusCode < 300 ? resolve(true) : reject(new Error('sendgrid ' + res.statusCode + ': ' + d.slice(0, 200))));
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});
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req.on('error', reject);
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req.on('timeout', () => req.destroy(new Error('sendgrid timeout')));
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req.end(body);
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});
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}
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function sendCode(to, code) {
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return send(to, code + ' is your LinkSpin sign-in code',
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'Your sign-in code is: ' + code + '\n\n'
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+ 'It works for 15 minutes. If you did not request it, ignore this email.\n\n'
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+ 'LinkSpin\nAdvertise and earn instantly. Locked in code, not promises.\nhttps://linkspin-test.saasy.top');
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}
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module.exports = { init, hasKey, send, sendCode };
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