Merge pull request #3 from silvermine/jrthomer/filter-getobject-params

feat: allow for additional params on conditionalPut

getFileBody.js

@@ -1,8 +1,32 @@
 'use strict';
 
 var Q = require('q'),
+    _ = require('underscore'),
     AWS = require('aws-sdk'),
-    s3 = new AWS.S3();
+    s3 = new AWS.S3(),
+    RETAINED_KEYS;
+
+RETAINED_KEYS = [
+   'Bucket',
+   'Key',
+   'IfMatch',
+   'IfModifiedSince',
+   'IfNoneMatch',
+   'IfUnmodifiedSince',
+   'PartNumber',
+   'Range',
+   'RequestPayer',
+   'ResponseCacheControl',
+   'ResponseContentDisposition',
+   'ResponseContentEncoding',
+   'ResponseContentLanguage',
+   'ResponseContentType',
+   'ResponseExpires',
+   'SSECustomerAlgorithm',
+   'SSECustomerKey',
+   'SSECustomerKeyMD5',
+   'VersionId',
+];
 
 /**
  * Returns false if a file did not exist, otherwise returns the string or
@@ -13,7 +37,7 @@ var Q = require('q'),
  * not exist
  */
 module.exports = function getExistingFileBody(params) {
-   return Q.ninvoke(s3, 'getObject', params)
+   return Q.ninvoke(s3, 'getObject', _.pick(params, RETAINED_KEYS))
       .then(function(resp) {
          return resp.Body;
       })