A SAML token verification can be implemented correctly in under 50 lines of code

I have seen multiple implementations of SAML logins, and I have never seen one with less than 500 LoC, and mutliple layers of complexity.

On the other hand I have migrated some (1 i did myself, 2 i just witnessed) of these SAML logins to oauth, and then it became actually 50 LoC.