85 lines
2.3 KiB
JavaScript
85 lines
2.3 KiB
JavaScript
const crypto = require('crypto');
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const storage = require('../storage');
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const config = require('../config');
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const mozlog = require('../log');
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const Limiter = require('../limiter');
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const Parser = require('../streamparser');
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const wsStream = require('websocket-stream/stream');
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const log = mozlog('send.upload');
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module.exports = async function(ws, req) {
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let fileStream;
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ws.on('close', e => {
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if (e !== 1000 && fileStream !== undefined) {
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fileStream.destroy();
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}
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});
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ws.once('message', async function(message) {
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try {
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const newId = crypto.randomBytes(5).toString('hex');
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const owner = crypto.randomBytes(10).toString('hex');
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const fileInfo = JSON.parse(message);
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const metadata = fileInfo.fileMetadata;
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const auth = fileInfo.authorization;
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if (!metadata || !auth) {
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ws.send(
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JSON.stringify({
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error: 400
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})
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);
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return ws.close();
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}
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const meta = {
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owner,
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metadata,
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auth: auth.split(' ')[1],
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nonce: crypto.randomBytes(16).toString('base64')
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};
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const protocol = config.env === 'production' ? 'https' : req.protocol;
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const url = `${protocol}://${req.get('host')}/download/${newId}/`;
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const limiter = new Limiter(config.max_file_size);
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const parser = new Parser();
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fileStream = wsStream(ws, { binary: true })
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.pipe(limiter)
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.pipe(parser);
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await storage.set(newId, fileStream, meta);
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if (ws.readyState === 1) {
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// if the socket is closed by a cancelled upload the stream
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// ends without an error so we need to check the state
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// before sending a reply.
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// TODO: we should handle cancelled uploads differently
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// in order to avoid having to check socket state and clean
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// up storage, possibly with an exception that we can catch.
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ws.send(
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JSON.stringify({
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url,
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owner: meta.owner,
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id: newId,
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authentication: `send-v1 ${meta.nonce}`
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})
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);
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}
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} catch (e) {
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log.error('upload', e);
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if (ws.readyState === 1) {
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ws.send(
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JSON.stringify({
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error: e === 'limit' ? 413 : 500
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})
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);
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ws.close();
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}
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}
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});
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};
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