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Current File : //var/www/projetos/stb.ind.br/wp-content/themes/stb/node_modules/raw-body/index.js

var bytes = require('bytes')

// NOTE: the trailing slash is not a typo
var StringDecoder = require('string_decoder/').StringDecoder

module.exports = function (stream, options, done) {
  if (typeof options === 'function') {
    done = options
    options = {}
  } else if (!options) {
    options = {}
  } else if (options === true) {
    options = {
      encoding: 'utf8'
    }
  }

  // convert the limit to an integer
  var limit = null
  if (typeof options.limit === 'number')
    limit = options.limit
  if (typeof options.limit === 'string')
    limit = bytes(options.limit)

  // convert the expected length to an integer
  var length = null
  if (options.length != null && !isNaN(options.length))
    length = parseInt(options.length, 10)

  // check the length and limit options.
  // note: we intentionally leave the stream paused,
  // so users should handle the stream themselves.
  if (limit !== null && length !== null && length > limit) {
    if (typeof stream.pause === 'function')
      stream.pause()

    process.nextTick(function () {
      var err = makeError('request entity too large', 'entity.too.large')
      err.status = err.statusCode = 413
      err.length = err.expected = length
      err.limit = limit
      done(err)
    })
    return defer
  }

  // streams1: assert request encoding is buffer.
  // streams2+: assert the stream encoding is buffer.
  //   stream._decoder: streams1
  //   state.encoding: streams2
  //   state.decoder: streams2, specifically < 0.10.6
  var state = stream._readableState
  if (stream._decoder || (state && (state.encoding || state.decoder))) {
    if (typeof stream.pause === 'function')
      stream.pause()

    process.nextTick(function () {
      var err = makeError('stream encoding should not be set',
        'stream.encoding.set')
      // developer error
      err.status = err.statusCode = 500
      done(err)
    })
    return defer
  }

  var received = 0
  // note: we delegate any invalid encodings to the constructor
  var decoder = options.encoding
    ? new StringDecoder(options.encoding === true ? 'utf8' : options.encoding)
    : null
  var buffer = decoder
    ? ''
    : []

  stream.on('data', onData)
  stream.once('end', onEnd)
  stream.once('error', onEnd)
  stream.once('close', cleanup)

  return defer

  // yieldable support
  function defer(fn) {
    done = fn
  }

  function onData(chunk) {
    received += chunk.length
    decoder
      ? buffer += decoder.write(chunk)
      : buffer.push(chunk)

    if (limit !== null && received > limit) {
      if (typeof stream.pause === 'function')
        stream.pause()
      var err = makeError('request entity too large', 'entity.too.large')
      err.status = err.statusCode = 413
      err.received = received
      err.limit = limit
      done(err)
      cleanup()
    }
  }

  function onEnd(err) {
    if (err) {
      if (typeof stream.pause === 'function')
        stream.pause()
      done(err)
    } else if (length !== null && received !== length) {
      err = makeError('request size did not match content length',
        'request.size.invalid')
      err.status = err.statusCode = 400
      err.received = received
      err.length = err.expected = length
      done(err)
    } else {
      done(null, decoder
        ? buffer + decoder.end()
        : Buffer.concat(buffer)
      )
    }

    cleanup()
  }

  function cleanup() {
    received = buffer = null

    stream.removeListener('data', onData)
    stream.removeListener('end', onEnd)
    stream.removeListener('error', onEnd)
    stream.removeListener('close', cleanup)
  }
}

// to create serializable errors you must re-set message so
// that it is enumerable and you must re configure the type
// property so that is writable and enumerable
function makeError(message, type) {
  var error = new Error()
  error.message = message
  Object.defineProperty(error, 'type', {
    value: type,
    enumerable: true,
    writable: true,
    configurable: true
  })
  return error
}

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