AWS S3 Pre-signed Query String URLs

Quick and dirty implementation of

http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html

This mini-app uses the example values referenced on that page.

Installation

git clone git@github.com:notbrain/awsv4-s3-pre-signed-url.git

npm install

node .

Expected output:

$ node .

------------[canonicalRequest]------------
GET
/test.txt
X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIOSFODNN7EXAMPLE%2F20130524%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20130524T000000Z&X-Amz-Expires=86400&X-Amz-SignedHeaders=host
host:examplebucket.s3.amazonaws.com

host
UNSIGNED-PAYLOAD
------------[/canonicalRequest]------------

[         encoded canonical request] 3bfa292879f6447bbcda7001decf97f4a54dc650c8942174ae0a9121cf58ad04
[expected encoded canonical request] 3bfa292879f6447bbcda7001decf97f4a54dc650c8942174ae0a9121cf58ad04

[calculated signature] aeeed9bbccd4d02ee5c0109b86d86835f995330da4c265957d157751f604d404
[  expected signature] aeeed9bbccd4d02ee5c0109b86d86835f995330da4c265957d157751f604d404

CALCULATED URL
https://examplebucket.s3.amazonaws.com/test.txt?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIOSFODNN7EXAMPLE%2F20130524%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20130524T000000Z&X-Amz-Expires=86400&X-Amz-SignedHeaders=host&X-Amz-Signature=aeeed9bbccd4d02ee5c0109b86d86835f995330da4c265957d157751f604d404

EXPECTED URL
https://examplebucket.s3.amazonaws.com/test.txt?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIOSFODNN7EXAMPLE%2F20130524%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20130524T000000Z&X-Amz-Expires=86400&X-Amz-SignedHeaders=host&X-Amz-Signature=aeeed9bbccd4d02ee5c0109b86d86835f995330da4c265957d157751f604d404