1 | /*!
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2 | * body-parser
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3 | * Copyright(c) 2014-2015 Douglas Christopher Wilson
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4 | * MIT Licensed
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5 | */
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6 |
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7 | 'use strict'
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8 |
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9 | /**
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10 | * Module dependencies.
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11 | */
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12 |
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13 | var bytes = require('bytes')
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14 | var debug = require('debug')('body-parser:raw')
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15 | var read = require('../read')
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16 | var typeis = require('type-is')
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17 |
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18 | /**
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19 | * Module exports.
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20 | */
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21 |
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22 | module.exports = raw
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23 |
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24 | /**
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25 | * Create a middleware to parse raw bodies.
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26 | *
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27 | * @param {object} [options]
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28 | * @return {function}
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29 | * @api public
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30 | */
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31 |
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32 | function raw (options) {
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33 | var opts = options || {}
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34 |
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35 | var inflate = opts.inflate !== false
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36 | var limit = typeof opts.limit !== 'number'
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37 | ? bytes.parse(opts.limit || '100kb')
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38 | : opts.limit
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39 | var type = opts.type || 'application/octet-stream'
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40 | var verify = opts.verify || false
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41 |
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42 | if (verify !== false && typeof verify !== 'function') {
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43 | throw new TypeError('option verify must be function')
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44 | }
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45 |
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46 | // create the appropriate type checking function
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47 | var shouldParse = typeof type !== 'function'
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48 | ? typeChecker(type)
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49 | : type
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50 |
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51 | function parse (buf) {
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52 | return buf
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53 | }
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54 |
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55 | return function rawParser (req, res, next) {
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56 | if (req._body) {
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57 | debug('body already parsed')
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58 | next()
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59 | return
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60 | }
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61 |
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62 | req.body = req.body || {}
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63 |
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64 | // skip requests without bodies
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65 | if (!typeis.hasBody(req)) {
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66 | debug('skip empty body')
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67 | next()
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68 | return
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69 | }
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70 |
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71 | debug('content-type %j', req.headers['content-type'])
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72 |
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73 | // determine if request should be parsed
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74 | if (!shouldParse(req)) {
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75 | debug('skip parsing')
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76 | next()
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77 | return
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78 | }
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79 |
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80 | // read
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81 | read(req, res, next, parse, debug, {
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82 | encoding: null,
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83 | inflate: inflate,
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84 | limit: limit,
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85 | verify: verify
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86 | })
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87 | }
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88 | }
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89 |
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90 | /**
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91 | * Get the simple type checker.
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92 | *
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93 | * @param {string} type
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94 | * @return {function}
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95 | */
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96 |
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97 | function typeChecker (type) {
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98 | return function checkType (req) {
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99 | return Boolean(typeis(req, type))
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100 | }
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101 | }
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