Fix #50. Do accesible the ID of the object Logout Request (id attribute)

Author: pitbulk

README.md

@@ -591,7 +591,7 @@ else:
     if not keep_local_session:
         OneLogin_Saml2_Utils.delete_local_session(delete_session_cb)
 
-    in_response_to = OneLogin_Saml2_Logout_Request.get_id(request)
+    in_response_to = request.id
     response_builder = OneLogin_Saml2_Logout_Response(self.__settings)
     response_builder.build(in_response_to)
     logout_response = response_builder.get_response()
@@ -748,7 +748,7 @@ SAML 2 Logout Request class
 
 * `__init__` Constructs the Logout Request object.
 * ***get_request*** Returns the Logout Request defated, base64encoded.
-* ***get_id*** Returns the ID of the Logout Request.
+* ***get_id*** Returns the ID of the Logout Request. (If you have the object you can access to the id attribute)
 * ***get_nameid_data*** Gets the NameID Data of the the Logout Request (returns a dict).
 * ***get_nameid*** Gets the NameID of the Logout Request Message (returns a string).
 * ***get_issuer*** Gets the Issuer of the Logout Request Message.
@@ -875,7 +875,7 @@ toolkit on it in development mode executing this:
 Using this method of deployment the toolkit files will be linked instead of
 copied, so if you make changes on them you won't need to reinstall the toolkit.
 
-If you want install it in a nomal mode, execute:
+If you want install it in a normal mode, execute:
 ```
  python setup.py install
 ```

src/onelogin/saml2/auth.py

@@ -141,7 +141,7 @@ def process_slo(self, keep_local_session=False, request_id=None, delete_session_
                 if not keep_local_session:
                     OneLogin_Saml2_Utils.delete_local_session(delete_session_cb)
 
-                in_response_to = OneLogin_Saml2_Logout_Request.get_id(OneLogin_Saml2_Utils.decode_base64_and_inflate(self.__request_data['get_data']['SAMLRequest']))
+                in_response_to = logout_request.id
                 response_builder = OneLogin_Saml2_Logout_Response(self.__settings)
                 response_builder.build(in_response_to)
                 logout_response = response_builder.get_response()

src/onelogin/saml2/logout_request.py

@@ -47,13 +47,16 @@ def __init__(self, settings, request=None, name_id=None, session_index=None):
         """
         self.__settings = settings
         self.__error = None
+        self.id = None
 
         if request is None:
             sp_data = self.__settings.get_sp_data()
             idp_data = self.__settings.get_idp_data()
             security = self.__settings.get_security_data()
 
             uid = OneLogin_Saml2_Utils.generate_unique_id()
+            self.id = uid
+
             issue_instant = OneLogin_Saml2_Utils.parse_time_to_SAML(OneLogin_Saml2_Utils.now())
 
             cert = None
@@ -105,6 +108,7 @@ def __init__(self, settings, request=None, name_id=None, session_index=None):
                 logout_request = inflated
             except Exception:
                 logout_request = decoded
+            self.id = self.get_id(logout_request)
 
         self.__logout_request = logout_request