32 lines
940 B
JavaScript
32 lines
940 B
JavaScript
const storage = require('../storage');
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const { statDownloadEvent } = require('../amplitude');
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module.exports = async function(req, res) {
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try {
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const id = req.params.id;
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const meta = req.meta;
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const ttl = await storage.ttl(id);
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statDownloadEvent({
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id,
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ip: req.ip,
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owner: meta.owner,
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download_count: meta.dl,
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ttl,
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agent: req.ua.browser.name || req.ua.ua.substring(0, 6)
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});
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await storage.incrementField(id, 'dl');
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if (meta.dl + 1 >= meta.dlimit) {
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// Only dlimit number of tokens will be issued
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// after which /download/token will return 403
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// however the protocol doesn't prevent one token
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// from making all the downloads and assumes
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// clients are well behaved. If this becomes
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// a problem we can keep track of used tokens.
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await storage.kill(id);
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}
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res.sendStatus(200);
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} catch (e) {
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res.sendStatus(404);
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}
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};
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