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/*!
* body-parser
* Copyright(c) 2014-2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module dependencies.
*/
var bytes = require('bytes')
var debug = require('debug')('body-parser:raw')
var read = require('../read')
var typeis = require('type-is')
/**
* Module exports.
*/
module.exports = raw
/**
* Create a middleware to parse raw bodies.
*
* @param {object} [options]
* @return {function}
* @api public
*/
function raw(options) {
var opts = options || {};
var inflate = opts.inflate !== false
var limit = typeof opts.limit !== 'number'
? bytes.parse(opts.limit || '100kb')
: opts.limit
var type = opts.type || 'application/octet-stream'
var verify = opts.verify || false
if (verify !== false && typeof verify !== 'function') {
throw new TypeError('option verify must be function')
}
// create the appropriate type checking function
var shouldParse = typeof type !== 'function'
? typeChecker(type)
: type
function parse(buf) {
return buf
}
return function rawParser(req, res, next) {
if (req._body) {
return debug('body already parsed'), next()
}
req.body = req.body || {}
// skip requests without bodies
if (!typeis.hasBody(req)) {
return debug('skip empty body'), next()
}
debug('content-type %j', req.headers['content-type'])
// determine if request should be parsed
if (!shouldParse(req)) {
return debug('skip parsing'), next()
}
// read
read(req, res, next, parse, debug, {
encoding: null,
inflate: inflate,
limit: limit,
verify: verify
})
}
}
/**
* Get the simple type checker.
*
* @param {string} type
* @return {function}
*/
function typeChecker(type) {
return function checkType(req) {
return Boolean(typeis(req, type))
}
}
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