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File Content: `hawk.js`

'use strict'

var crypto = require('crypto')

function randomString (size) {
  var bits = (size + 1) * 6
  var buffer = crypto.randomBytes(Math.ceil(bits / 8))
  var string = buffer.toString('base64').replace(/\+/g, '-').replace(/\//g, '_').replace(/=/g, '')
  return string.slice(0, size)
}

function calculatePayloadHash (payload, algorithm, contentType) {
  var hash = crypto.createHash(algorithm)
  hash.update('hawk.1.payload\n')
  hash.update((contentType ? contentType.split(';')[0].trim().toLowerCase() : '') + '\n')
  hash.update(payload || '')
  hash.update('\n')
  return hash.digest('base64')
}

exports.calculateMac = function (credentials, opts) {
  var normalized = 'hawk.1.header\n' +
    opts.ts + '\n' +
    opts.nonce + '\n' +
    (opts.method || '').toUpperCase() + '\n' +
    opts.resource + '\n' +
    opts.host.toLowerCase() + '\n' +
    opts.port + '\n' +
    (opts.hash || '') + '\n'

  if (opts.ext) {
    normalized = normalized + opts.ext.replace('\\', '\\\\').replace('\n', '\\n')
  }

  normalized = normalized + '\n'

  if (opts.app) {
    normalized = normalized + opts.app + '\n' + (opts.dlg || '') + '\n'
  }

  var hmac = crypto.createHmac(credentials.algorithm, credentials.key).update(normalized)
  var digest = hmac.digest('base64')
  return digest
}

exports.header = function (uri, method, opts) {
  var timestamp = opts.timestamp || Math.floor((Date.now() + (opts.localtimeOffsetMsec || 0)) / 1000)
  var credentials = opts.credentials
  if (!credentials || !credentials.id || !credentials.key || !credentials.algorithm) {
    return ''
  }

  if (['sha1', 'sha256'].indexOf(credentials.algorithm) === -1) {
    return ''
  }

  var artifacts = {
    ts: timestamp,
    nonce: opts.nonce || randomString(6),
    method: method,
    resource: uri.pathname + (uri.search || ''),
    host: uri.hostname,
    port: uri.port || (uri.protocol === 'http:' ? 80 : 443),
    hash: opts.hash,
    ext: opts.ext,
    app: opts.app,
    dlg: opts.dlg
  }

  if (!artifacts.hash && (opts.payload || opts.payload === '')) {
    artifacts.hash = calculatePayloadHash(opts.payload, credentials.algorithm, opts.contentType)
  }

  var mac = exports.calculateMac(credentials, artifacts)

  var hasExt = artifacts.ext !== null && artifacts.ext !== undefined && artifacts.ext !== ''
  var header = 'Hawk id="' + credentials.id +
    '", ts="' + artifacts.ts +
    '", nonce="' + artifacts.nonce +
    (artifacts.hash ? '", hash="' + artifacts.hash : '') +
    (hasExt ? '", ext="' + artifacts.ext.replace(/\\/g, '\\\\').replace(/"/g, '\\"') : '') +
    '", mac="' + mac + '"'

  if (artifacts.app) {
    header = header + ', app="' + artifacts.app + (artifacts.dlg ? '", dlg="' + artifacts.dlg : '') + '"'
  }

  return header
}

Name	Size	Permission
auth.js	4774 bytes	0644
cookies.js	974 bytes	0644
getProxyFromURI.js	2241 bytes	0644
har.js	4806 bytes	0644
hawk.js	2750 bytes	0644
helpers.js	1411 bytes	0644
multipart.js	2674 bytes	0644
oauth.js	4136 bytes	0644
querystring.js	1334 bytes	0644
redirect.js	4635 bytes	0644
tunnel.js	4416 bytes	0644

File Content: hawk.js

File Content: `hawk.js`