converted get stream to use knox, test to see if it is more robust

services/filestore/app/coffee/s3Wrapper.coffee

@@ -8,7 +8,6 @@ knox = require("knox")
 path = require("path")
 LocalFileWriter = require("./LocalFileWriter")
 _ = require("underscore")
-	
 
 thirtySeconds = 30 * 1000
 
@@ -58,13 +57,19 @@ module.exports =
 				return callback(err)
 			@sendFileToS3 bucketName, key, fsPath, callback
 			
-	getFileStream: (bucketName, key, callback)->
+	getFileStream: (bucketName, key, callback = (err, res)->)->
 		logger.log bucketName:bucketName, key:key, "getting file from s3"
-		options = buildDefaultOptions(bucketName, "get", key)
-		readStream = request(options)
-		readStream.on "error", (err)->
+		s3Client = knox.createClient
+			key: settings.s3.key
+			secret: settings.s3.secret
+			bucket: bucketName
+		s3Stream = s3Client.get(key)
+		s3Stream.end()
+		s3Stream.on 'response', (res) ->
+			callback null, res
+		s3Stream.on 'error', (err) ->
 			logger.err err:err, bucketName:bucketName, key:key, "error getting file stream from s3"
-		callback null, readStream
+			callback err
 
 	copyFile: (bucketName, sourceKey, destKey, callback)->
 		logger.log bucketName:bucketName, sourceKey:sourceKey, destKey:destKey, "copying file in s3"

services/filestore/test/unit/coffee/s3WrapperTests.coffee

@@ -20,6 +20,7 @@ describe "s3WrapperTests", ->
 			copyFile:sinon.stub()
 			list: sinon.stub()
 			deleteMultiple: sinon.stub()
+			get: sinon.stub()
 		@knox = 
 			createClient: sinon.stub().returns(@stubbedKnoxClient)
 		@LocalFileWriter = 
@@ -36,19 +37,19 @@ describe "s3WrapperTests", ->
 		@bucketName = "my-bucket"
 		@error = "my errror"
 
-	describe "Pipe to dest", ->
+	describe "getFileStream", ->
+		beforeEach ->
+			@s3Wrapper = SandboxedModule.require modulePath, requires: @requires
 
-		it "should use correct options", (done)->
 
-			stubbedReadStream = {on:->}
-			dest = {my:"object"}
-			@request = (opts)=>
-				return stubbedReadStream
-			@requires["request"] = @request
-			@s3Wrapper = SandboxedModule.require modulePath, requires: @requires
-			@s3Wrapper.getFileStream @bucketName, @key, (err, readStream)->
-				readStream.should.equal stubbedReadStream
-				done()
+		it "should use correct key", (done)->
+			@stubbedKnoxClient.get.returns(
+				on:->
+				end:->
+			)
+			@s3Wrapper.getFileStream @bucketName, @key, @fsPath, (err)=>
+			@stubbedKnoxClient.get.calledWith(@key).should.equal true 
+			done()
 
 	describe "sendFileToS3", ->