Fix.

node_modules/oauth-sign/index.js

@@ -0,0 +1,146 @@
+var crypto = require('crypto')
+
+function sha (key, body, algorithm) {
+  return crypto.createHmac(algorithm, key).update(body).digest('base64')
+}
+
+function rsa (key, body) {
+  return crypto.createSign('RSA-SHA1').update(body).sign(key, 'base64')
+}
+
+function rfc3986 (str) {
+  return encodeURIComponent(str)
+    .replace(/!/g,'%21')
+    .replace(/\*/g,'%2A')
+    .replace(/\(/g,'%28')
+    .replace(/\)/g,'%29')
+    .replace(/'/g,'%27')
+}
+
+// Maps object to bi-dimensional array
+// Converts { foo: 'A', bar: [ 'b', 'B' ]} to
+// [ ['foo', 'A'], ['bar', 'b'], ['bar', 'B'] ]
+function map (obj) {
+  var key, val, arr = []
+  for (key in obj) {
+    val = obj[key]
+    if (Array.isArray(val))
+      for (var i = 0; i < val.length; i++)
+        arr.push([key, val[i]])
+    else if (typeof val === 'object')
+      for (var prop in val)
+        arr.push([key + '[' + prop + ']', val[prop]])
+    else
+      arr.push([key, val])
+  }
+  return arr
+}
+
+// Compare function for sort
+function compare (a, b) {
+  return a > b ? 1 : a < b ? -1 : 0
+}
+
+function generateBase (httpMethod, base_uri, params) {
+  // adapted from https://dev.twitter.com/docs/auth/oauth and 
+  // https://dev.twitter.com/docs/auth/creating-signature
+
+  // Parameter normalization
+  // http://tools.ietf.org/html/rfc5849#section-3.4.1.3.2
+  var normalized = map(params)
+  // 1.  First, the name and value of each parameter are encoded
+  .map(function (p) {
+    return [ rfc3986(p[0]), rfc3986(p[1] || '') ]
+  })
+  // 2.  The parameters are sorted by name, using ascending byte value
+  //     ordering.  If two or more parameters share the same name, they
+  //     are sorted by their value.
+  .sort(function (a, b) {
+    return compare(a[0], b[0]) || compare(a[1], b[1])
+  })
+  // 3.  The name of each parameter is concatenated to its corresponding
+  //     value using an "=" character (ASCII code 61) as a separator, even
+  //     if the value is empty.
+  .map(function (p) { return p.join('=') })
+   // 4.  The sorted name/value pairs are concatenated together into a
+   //     single string by using an "&" character (ASCII code 38) as
+   //     separator.
+  .join('&')
+
+  var base = [
+    rfc3986(httpMethod ? httpMethod.toUpperCase() : 'GET'),
+    rfc3986(base_uri),
+    rfc3986(normalized)
+  ].join('&')
+
+  return base
+}
+
+function hmacsign (httpMethod, base_uri, params, consumer_secret, token_secret) {
+  var base = generateBase(httpMethod, base_uri, params)
+  var key = [
+    consumer_secret || '',
+    token_secret || ''
+  ].map(rfc3986).join('&')
+
+  return sha(key, base, 'sha1')
+}
+
+function hmacsign256 (httpMethod, base_uri, params, consumer_secret, token_secret) {
+  var base = generateBase(httpMethod, base_uri, params)
+  var key = [
+    consumer_secret || '',
+    token_secret || ''
+  ].map(rfc3986).join('&')
+
+  return sha(key, base, 'sha256')
+}
+
+function rsasign (httpMethod, base_uri, params, private_key, token_secret) {
+  var base = generateBase(httpMethod, base_uri, params)
+  var key = private_key || ''
+
+  return rsa(key, base)
+}
+
+function plaintext (consumer_secret, token_secret) {
+  var key = [
+    consumer_secret || '',
+    token_secret || ''
+  ].map(rfc3986).join('&')
+
+  return key
+}
+
+function sign (signMethod, httpMethod, base_uri, params, consumer_secret, token_secret) {
+  var method
+  var skipArgs = 1
+
+  switch (signMethod) {
+    case 'RSA-SHA1':
+      method = rsasign
+      break
+    case 'HMAC-SHA1':
+      method = hmacsign
+      break
+    case 'HMAC-SHA256':
+      method = hmacsign256
+      break
+    case 'PLAINTEXT':
+      method = plaintext
+      skipArgs = 4
+      break
+    default:
+     throw new Error('Signature method not supported: ' + signMethod)
+  }
+
+  return method.apply(null, [].slice.call(arguments, skipArgs))
+}
+
+exports.hmacsign = hmacsign
+exports.hmacsign256 = hmacsign256
+exports.rsasign = rsasign
+exports.plaintext = plaintext
+exports.sign = sign
+exports.rfc3986 = rfc3986
+exports.generateBase = generateBase