Added OpenId Module.

Better way to present handle authentication strategies in the view using tabs.

modules/openid/filter/cms_openid_filter.e

@@ -0,0 +1,58 @@
+note
+	description: "[
+		Extracts an Openid token from the incoming request (cookie) and uses it to populate the user (or cms user context)
+		]"
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	CMS_OPENID_FILTER
+
+inherit
+	WSF_URI_TEMPLATE_HANDLER
+	CMS_HANDLER
+		rename
+			make as make_handler
+		end
+
+	WSF_FILTER
+
+create
+	make
+
+feature {NONE} -- Initialization
+
+	make (a_api: CMS_API; a_user_openid_api: CMS_OPENID_API)
+		do
+			make_handler (a_api)
+			user_openid_api := a_user_openid_api
+		end
+
+	user_openid_api: CMS_OPENID_API
+
+feature -- Basic operations
+
+	execute (req: WSF_REQUEST; res: WSF_RESPONSE)
+			-- Execute the filter.
+		local
+			o: OPENID_CONSUMER
+			v: OPENID_CONSUMER_VALIDATION
+
+		do
+			api.logger.put_debug (generator + ".execute ", Void)
+				-- A valid user
+			if
+				attached {WSF_STRING} req.cookie ({CMS_OPENID_CONSTANTS}.openid_session) as l_roc_openid_session_token
+			then
+				if attached user_openid_api.user_openid_by_identity (l_roc_openid_session_token.value) as l_user then
+					set_current_user (req, l_user)
+				else
+					api.logger.put_error (generator + ".execute login_valid failed for: " + l_roc_openid_session_token.value , Void)
+				end
+			else
+				api.logger.put_debug (generator + ".execute without authentication", Void)
+			end
+			execute_next (req, res)
+		end
+
+end