Converting python to ruby params issue - ruby-on-rails

Question

I'm converting some python code to ruby. It's going ok so far, except I'm running into some issues with parameters. The python code is:
def sign_policy(policy):
signed_policy = base64.b64encode(policy)
signature = base64.b64encode(hmac.new(
app.config.get('AWS_CLIENT_SECRET_KEY'), signed_policy, hashlib.sha1).
digest())
return { 'policy': signed_policy, 'signature': signature }
def sign_headers(headers):
headers = bytearray(headers, 'utf-8') # hmac doesn't want unicode
return {
'signature': base64.b64encode(hmac.new(
app.config.get('AWS_CLIENT_SECRET_KEY'), headers, hashlib.sha1).
digest())
}
def s3_signature():
request_payload = request.get_json()
if request_payload.get('headers'):
response_data = sign_headers(request_payload['headers'])
else:
response_data = sign_policy(request.data)
return jsonify(response_data)
My ruby version so far is:
def create
puts params[:headers]
if params[:headers].present?
response_data = sign_headers(params[:headers])
else
response_data = sign_policy(params)
end
render json: response_data
end
private
def sign_policy(policy)
signed_policy = Base64.encode64(policy).gsub("\n","")
signature = Base64.encode64(
OpenSSL::HMAC.digest(
OpenSSL::Digest.new('sha1'),
AWS_SECRET_KEY, signed_policy)
).gsub("\n","")
return { 'policy': signed_policy, 'signature': signature }
end
def sign_headers(headers)
#headers = bytearray(headers, 'utf-8')
return {
'signature': Base64.encode64(
OpenSSL::HMAC.digest(
AWS_SECRET_KEY, headers, OpenSSL::Digest.new('sha1')
))
}
end
I'm running into the following issue: no implicit conversion of ActionController::Parameters into String, which makes it obvious whats wrong (Params is a hash and it needs to be a string)..However, what is being passed in the python code? I'm missing what I should be passing?

Answer 1

Most probably you need to pass a single value, String or any other, it depends on the data type you need to pass to use Base64.encode64(policy).
As you're passing params[:headers] in the sign_headers method call, in the case of the sign_policy call, you're passing params which is the whole ActionController::Parameters, try debugging the values you sent on params to send the needed value.