Simon Kusterer
32 linhas
940 B
JavaScript
32 linhas
940 B
JavaScript
var fs = require('fs');
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var util = require('util');
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var rangeParser = require('range-parser');
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var mime = require('mime');
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module.exports = function(req, res, filePath) {
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var stat = fs.statSync(filePath);
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var total = stat.size;
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var range = req.headers.range;
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var type = mime.lookup(filePath);
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res.setHeader('Content-Type', type);
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res.setHeader('Access-Control-Allow-Origin', '*');
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if (!range) {
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res.setHeader('Content-Length', total);
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res.statusCode = 200;
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return fs.createReadStream(filePath).pipe(res);
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}
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var part = rangeParser(total, range)[0];
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var chunksize = (part.end - part.start) + 1;
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var file = fs.createReadStream(filePath, {start: part.start, end: part.end});
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res.setHeader('Content-Range', 'bytes ' + part.start + '-' + part.end + '/' + total);
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res.setHeader('Accept-Ranges', 'bytes');
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res.setHeader('Content-Length', chunksize);
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res.statusCode = 206;
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return file.pipe(res);
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};
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