Add AWS Signature Version 4

README.md

@@ -754,7 +754,7 @@ The first argument can be either a `url` or an `options` object. The only requir
 - `auth` - A hash containing values `user` || `username`, `pass` || `password`, and `sendImmediately` (optional).  See documentation above.
 - `oauth` - Options for OAuth HMAC-SHA1 signing. See documentation above.
 - `hawk` - Options for [Hawk signing](https://github.com/hueniverse/hawk). The `credentials` key must contain the necessary signing info, [see hawk docs for details](https://github.com/hueniverse/hawk#usage-example).
-- `aws` - `object` containing AWS signing information. Should have the properties `key`, `secret`. Also requires the property `bucket`, unless you’re specifying your `bucket` as part of the path, or the request doesn’t use a bucket (i.e. GET Services)
+- `aws` - `object` containing AWS signing information. Should have the properties `key`, `secret`. Also requires the property `bucket`, unless you’re specifying your `bucket` as part of the path, or the request doesn’t use a bucket (i.e. GET Services). If you want to use AWS sign version 4 use the parameter `sign_version` with value `4` otherwise the default is version 2. **Note:** you need to `npm install aws4` first.
 - `httpSignature` - Options for the [HTTP Signature Scheme](https://github.com/joyent/node-http-signature/blob/master/http_signing.md) using [Joyent's library](https://github.com/joyent/node-http-signature). The `keyId` and `key` properties must be specified. See the docs for other options.
 
 ---

package.json

@@ -22,26 +22,26 @@
   },
   "main": "index.js",
   "dependencies": {
+    "aws-sign2": "~0.6.0",
     "bl": "~1.0.0",
     "caseless": "~0.11.0",
+    "combined-stream": "~1.0.5",
     "extend": "~3.0.0",
     "forever-agent": "~0.6.1",
     "form-data": "~1.0.0-rc3",
+    "har-validator": "~2.0.6",
+    "hawk": "~3.1.0",
+    "http-signature": "~1.1.0",
+    "is-typedarray": "~1.0.0",
+    "isstream": "~0.1.2",
     "json-stringify-safe": "~5.0.1",
     "mime-types": "~2.1.7",
     "node-uuid": "~1.4.7",
-    "qs": "~6.0.2",
-    "tunnel-agent": "~0.4.1",
-    "tough-cookie": "~2.2.0",
-    "http-signature": "~1.1.0",
     "oauth-sign": "~0.8.0",
-    "hawk": "~3.1.0",
-    "aws-sign2": "~0.6.0",
+    "qs": "~6.0.2",
     "stringstream": "~0.0.4",
-    "combined-stream": "~1.0.5",
-    "isstream": "~0.1.2",
-    "is-typedarray": "~1.0.0",
-    "har-validator": "~2.0.6"
+    "tough-cookie": "~2.2.0",
+    "tunnel-agent": "~0.4.1"
   },
   "scripts": {
     "test": "npm run lint && npm run test-ci && npm run test-browser",
@@ -51,24 +51,25 @@
     "lint": "eslint lib/ *.js tests/ && echo Lint passed."
   },
   "devDependencies": {
-    "browserify-istanbul": "^0.1.5",
+    "aws4": "^1.2.1",
+    "bluebird": "^3.0.2",
     "browserify": "^13.0.0",
+    "browserify-istanbul": "^0.1.5",
     "buffer-equal": "^1.0.0",
     "codecov.io": "^0.1.6",
     "coveralls": "^2.11.4",
     "eslint": "1.10.3",
     "function-bind": "^1.0.2",
     "istanbul": "^0.4.0",
-    "karma-browserify": "^4.4.0",
     "karma": "^0.13.10",
+    "karma-browserify": "^4.4.0",
     "karma-cli": "^0.1.1",
     "karma-coverage": "^0.5.3",
     "karma-phantomjs-launcher": "^0.1.4",
     "karma-tap": "^1.0.3",
     "rimraf": "^2.2.8",
     "server-destroy": "^1.0.1",
     "tape": "^4.2.0",
-    "taper": "^0.4.0",
-    "bluebird": "^3.0.2"
+    "taper": "^0.4.0"
   }
 }

request.js

@@ -8,7 +8,7 @@ var http = require('http')
   , zlib = require('zlib')
   , bl = require('bl')
   , hawk = require('hawk')
-  , aws = require('aws-sign2')
+  , aws2 = require('aws-sign2')
   , httpSignature = require('http-signature')
   , mime = require('mime-types')
   , stringstream = require('stringstream')
@@ -1229,29 +1229,52 @@ Request.prototype.aws = function (opts, now) {
     self._aws = opts
     return self
   }
-  var date = new Date()
-  self.setHeader('date', date.toUTCString())
-  var auth =
-    { key: opts.key
-    , secret: opts.secret
-    , verb: self.method.toUpperCase()
-    , date: date
-    , contentType: self.getHeader('content-type') || ''
-    , md5: self.getHeader('content-md5') || ''
-    , amazonHeaders: aws.canonicalizeHeaders(self.headers)
+
+  if (opts.sign_version == 4 || opts.sign_version == '4') {
+    var aws4 = require('aws4')
+    // use aws4  
+    var options = {
+      host: self.uri.host,
+      path: self.uri.path,
+      method: self.method,
+      headers: {
+        'content-type': self.getHeader('content-type') || ''
+      },
+      body: self.body
     }
-  var path = self.uri.path
-  if (opts.bucket && path) {
-    auth.resource = '/' + opts.bucket + path
-  } else if (opts.bucket && !path) {
-    auth.resource = '/' + opts.bucket
-  } else if (!opts.bucket && path) {
-    auth.resource = path
-  } else if (!opts.bucket && !path) {
-    auth.resource = '/'
-  }
-  auth.resource = aws.canonicalizeResource(auth.resource)
-  self.setHeader('authorization', aws.authorization(auth))
+    var signRes = aws4.sign(options, {
+      accessKeyId: opts.key,
+      secretAccessKey: opts.secret
+    })
+    self.setHeader('authorization', signRes.headers.Authorization)
+    self.setHeader('x-amz-date', signRes.headers['X-Amz-Date'])
+  }
+  else {
+    // default: use aws-sign2
+    var date = new Date()
+    self.setHeader('date', date.toUTCString())
+    var auth =
+      { key: opts.key
+      , secret: opts.secret
+      , verb: self.method.toUpperCase()
+      , date: date
+      , contentType: self.getHeader('content-type') || ''
+      , md5: self.getHeader('content-md5') || ''
+      , amazonHeaders: aws2.canonicalizeHeaders(self.headers)
+      }
+    var path = self.uri.path
+    if (opts.bucket && path) {
+      auth.resource = '/' + opts.bucket + path
+    } else if (opts.bucket && !path) {
+      auth.resource = '/' + opts.bucket
+    } else if (!opts.bucket && path) {
+      auth.resource = path
+    } else if (!opts.bucket && !path) {
+      auth.resource = '/'
+    }
+    auth.resource = aws2.canonicalizeResource(auth.resource)
+    self.setHeader('authorization', aws2.authorization(auth))
+  }
 
   return self
 }

tests/test-aws.js

@@ -0,0 +1,61 @@
+'use strict'
+
+var request = require('../index') 
+  , server  = require('./server')
+  , tape    = require('tape')
+
+var s = server.createServer()
+
+var path = '/aws.json'
+
+s.on(path, function(req, res) {
+  res.writeHead(200, {
+    'Content-Type': 'application/json'
+  })
+  res.end(JSON.stringify(req.headers))
+})
+
+tape('setup', function(t) {
+  s.listen(s.port, function() {
+    t.end()
+  })
+})
+
+tape('default behaviour: aws-sign2 without sign_version key', function(t) {
+  var options = {
+    url: s.url + path,
+    aws: {
+      key: 'my_key',
+      secret: 'my_secret'
+    },
+    json: true
+  }
+  request(options, function(err, res, body) {    
+    t.ok(body.authorization)
+    t.notOk(body['x-amz-date'])
+    t.end()
+  })
+})
+
+tape('aws-sign4 options', function(t) {
+  var options = {
+    url: s.url + path,
+    aws: {
+      key: 'my_key',
+      secret: 'my_secret',
+      sign_version: 4
+    },
+    json: true
+  }
+  request(options, function(err, res, body) {    
+    t.ok(body.authorization)
+    t.ok(body['x-amz-date'])
+    t.end()
+  })
+})
+
+tape('cleanup', function(t) {
+  s.close(function() {
+    t.end()
+  })
+})