Adding support for relayState in login request (#102)
Adding support for relayState in login request (#102)

* Update binding-redirect.ts

* Correcting order of octetString for signature

https://docs.oasis-open.org/security/saml/v2.0/saml-bindings-2.0-os.pdf

To construct the signature, a string consisting of the concatenation of the RelayState (if present),
SigAlg, and SAMLRequest (or SAMLResponse) query string parameters (each one URLencoded)
is constructed in one of the following ways (ordered as below):
SAMLRequest=value&RelayState=value&SigAlg=value
SAMLResponse=value&RelayState=value&SigAlg=value

* Update binding-redirect.ts

tngan/samlify,tngan/samlify,tngan/express-saml2