trjhtr

This is a follow on to a previous question:

Part 1: Signature

All the code I am submitting here is available in github

The reason to write these tools is so I can prototype and quickly verify that I am doing things correctly before implementing them in C++. This is mainly necessary because the documentation these scripts are based on are relatively bad and confusing.

s3/signature

#!/usr/bin/env bash

check=$(echo -n s3 | openssl dgst -sha256 -binary -mac HMAC -macopt hexkey:01dda345af12 2> /dev/null | xxd -p -c 256)
if [[ "$check" != "6d00e194dca4f102300b638bb3404a1c9b8c1ba73514d22a7013f9832c20366a" ]]; then
 echo "Check of openssl failed"
 echo "You need a verions greater than 0"
 exit 1
fi


#
# method
# url
# key
# secret
# dateTime if empty use now utc
# expires
# service if blank extracts from the URL
# region if blank extracts from the URL
# signHeaders if 1 creates headers for signing otherwise creates query parameters
# verbose if blank (empty or just white space) then no extra output.
# otherwise it is a filename to output (note - represents stdout)
# headers[@]

function createSignature xxd -p -c 256)

 #
 # Build the String to sign.
 local ss=$(cat - <<StringToSign
AWS4-HMAC-SHA256
$dateTime
$date/$region/$service/aws4_request
$HashedCanonicalRequest
StringToSign
 )

 #
 # Calculate the signature
 local kDate=$(echo -n $date