gitlab-org--gitlab-foss/lib/gitlab/auth/saml/origin_validator.rb

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# frozen_string_literal: true
module Gitlab
module Auth
module Saml
class OriginValidator
AUTH_REQUEST_SESSION_KEY = "last_authn_request_id".freeze
def initialize(session)
@session = session || {}
end
def store_origin(authn_request)
session[AUTH_REQUEST_SESSION_KEY] = authn_request.uuid
end
def gitlab_initiated?(saml_response)
return false if identity_provider_initiated?(saml_response)
matches?(saml_response)
end
private
attr_reader :session
def matches?(saml_response)
saml_response.in_response_to == expected_request_id
end
def identity_provider_initiated?(saml_response)
saml_response.in_response_to.blank?
end
def expected_request_id
session[AUTH_REQUEST_SESSION_KEY]
end
end
end
end
end