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/* jshint node:true */
'use strict';
var multiparty = require('multiparty'),
timeout = require('connect-timeout');
function _mime(req) {
var str = req.headers['content-type'] || '';
return str.split(';')[0];
}
module.exports = function multipart(options) {
return function (req, res, next) {
if (_mime(req) !== 'multipart/form-data') return res.status(400).send('Invalid content-type. Expecting multipart');
var form = new multiparty.Form({
uploadDir: '/tmp',
keepExtensions: true,
maxFieldsSize: options.maxFieldsSize || (2 * 1024), // only field size, not files
limit: options.limit || '500mb', // file sizes
autoFiles: true
});
// increase timeout of file uploads by default to 3 mins
if (req.clearTimeout) req.clearTimeout(); // clear any previous installed timeout middleware
timeout(options.timeout || (3 * 60 * 1000))(req, res, function () {
req.fields = { };
req.files = { };
form.parse(req, function (err, fields, files) {
if (err) return res.status(400).send('Error parsing request');
next(null);
});
form.on('file', function (name, file) {
req.files[name] = file;
});
form.on('field', function (name, value) {
req.fields[name] = value; // otherwise fields.name is an array
});
});
};
};
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