martbost
60 lines
3.1 KiB
JavaScript
60 lines
3.1 KiB
JavaScript
// DigitalOcean Spaces (S3-compatible) uploader — hand-rolled AWS SigV4 PUT so
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// large media (video) lives in object storage instead of the Coolify volume.
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// Zero-dependency (crypto only). FEATURE-FLAGGED: inert unless all of
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// DO_SPACES_KEY / DO_SPACES_SECRET / DO_SPACES_BUCKET / DO_SPACES_REGION are set.
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const crypto = require('crypto');
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const https = require('https');
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function enabled() {
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return !!(process.env.DO_SPACES_KEY && process.env.DO_SPACES_SECRET
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&& process.env.DO_SPACES_BUCKET && process.env.DO_SPACES_REGION);
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}
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const sha256hex = b => crypto.createHash('sha256').update(b).digest('hex');
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const hmac = (key, s) => crypto.createHmac('sha256', key).update(s).digest();
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// PUT one object, public-read. Returns the public URL. Rejects on non-2xx.
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function put(key, body, contentType) {
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return new Promise((resolve, reject) => {
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if (!enabled()) return reject(new Error('spaces-disabled'));
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const region = process.env.DO_SPACES_REGION;
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const bucket = process.env.DO_SPACES_BUCKET;
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const host = bucket + '.' + region + '.digitaloceanspaces.com';
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const path = '/' + key.replace(/^\/+/, '');
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const now = new Date();
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const amzDate = now.toISOString().replace(/[:-]|\.\d{3}/g, ''); // YYYYMMDDTHHMMSSZ
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const dateStamp = amzDate.slice(0, 8);
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const payloadHash = sha256hex(body);
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const signed = 'content-type;host;x-amz-acl;x-amz-content-sha256;x-amz-date';
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const canonicalHeaders =
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'content-type:' + contentType + '\n' +
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'host:' + host + '\n' +
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'x-amz-acl:public-read\n' +
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'x-amz-content-sha256:' + payloadHash + '\n' +
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'x-amz-date:' + amzDate + '\n';
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const canonicalReq = ['PUT', path, '', canonicalHeaders, signed, payloadHash].join('\n');
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const scope = dateStamp + '/' + region + '/s3/aws4_request';
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const toSign = ['AWS4-HMAC-SHA256', amzDate, scope, sha256hex(canonicalReq)].join('\n');
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const kDate = hmac('AWS4' + process.env.DO_SPACES_SECRET, dateStamp);
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const kRegion = hmac(kDate, region);
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const kService = hmac(kRegion, 's3');
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const kSigning = hmac(kService, 'aws4_request');
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const signature = crypto.createHmac('sha256', kSigning).update(toSign).digest('hex');
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const auth = 'AWS4-HMAC-SHA256 Credential=' + process.env.DO_SPACES_KEY + '/' + scope
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+ ', SignedHeaders=' + signed + ', Signature=' + signature;
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const req = https.request({ host, path, method: 'PUT', timeout: 30000, headers: {
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'Content-Type': contentType, 'Content-Length': body.length, 'x-amz-acl': 'public-read',
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'x-amz-content-sha256': payloadHash, 'x-amz-date': amzDate, Authorization: auth } },
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res => { let d = ''; res.on('data', c => d += c); res.on('end', () => {
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if (res.statusCode >= 200 && res.statusCode < 300) {
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const base = process.env.DO_SPACES_CDN || ('https://' + host);
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resolve(base.replace(/\/$/, '') + path);
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} else reject(new Error('spaces ' + 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('spaces timeout')));
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req.end(body);
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});
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}
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module.exports = { enabled, put };
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