From e6cc3a71a0c41c40e95b47d7f001a7d948dba9fc Mon Sep 17 00:00:00 2001
From: ankitjavalkar
Date: Thu, 5 Nov 2015 15:31:56 +0530
Subject: Allow single user session active at any given time

---
 yaksh/middleware/one_session_per_user.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 yaksh/middleware/one_session_per_user.py

(limited to 'yaksh/middleware/one_session_per_user.py')

diff --git a/yaksh/middleware/one_session_per_user.py b/yaksh/middleware/one_session_per_user.py
new file mode 100644
index 0000000..d9e97bb
--- /dev/null
+++ b/yaksh/middleware/one_session_per_user.py
@@ -0,0 +1,22 @@
+from django.contrib.auth.models import User
+from django.contrib.sessions.models import Session
+
+from yaksh.models import Visitor
+
+
+class OneSessionPerUserMiddleware(object):
+    def process_request(self, request):
+        if isinstance(request.user, User):
+            current_key = request.session.session_key
+            if hasattr(request.user, 'visitor'):
+                active_key = request.user.visitor.session_key
+                print active_key, current_key
+                if active_key != current_key:
+                    Session.objects.filter(session_key=active_key).delete()
+                    request.user.visitor.session_key = current_key
+                    request.user.visitor.save()
+            else:
+                Visitor.objects.create(
+                    visitor_user=request.user,
+                    session_key=current_key,
+                )
\ No newline at end of file
-- 
cgit 


From 58bd6a8dbe0aa440ad8ec517fc85d388d02dc5e7 Mon Sep 17 00:00:00 2001
From: ankitjavalkar
Date: Wed, 2 Dec 2015 18:30:12 +0530
Subject: Change model name associated with concurrent login

---
 yaksh/middleware/one_session_per_user.py | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

(limited to 'yaksh/middleware/one_session_per_user.py')

diff --git a/yaksh/middleware/one_session_per_user.py b/yaksh/middleware/one_session_per_user.py
index d9e97bb..f382652 100644
--- a/yaksh/middleware/one_session_per_user.py
+++ b/yaksh/middleware/one_session_per_user.py
@@ -1,22 +1,21 @@
 from django.contrib.auth.models import User
 from django.contrib.sessions.models import Session
 
-from yaksh.models import Visitor
+from yaksh.models import ConcurrentUser
 
 
 class OneSessionPerUserMiddleware(object):
     def process_request(self, request):
         if isinstance(request.user, User):
             current_key = request.session.session_key
-            if hasattr(request.user, 'visitor'):
-                active_key = request.user.visitor.session_key
-                print active_key, current_key
+            if hasattr(request.user, 'concurrentuser'):
+                active_key = request.user.concurrentuser.session_key
                 if active_key != current_key:
                     Session.objects.filter(session_key=active_key).delete()
-                    request.user.visitor.session_key = current_key
-                    request.user.visitor.save()
+                    request.user.concurrentuser.session_key = current_key
+                    request.user.concurrentuser.save()
             else:
-                Visitor.objects.create(
-                    visitor_user=request.user,
+                ConcurrentUser.objects.create(
+                    concurrent_user=request.user,
                     session_key=current_key,
                 )
\ No newline at end of file
-- 
cgit 


From 45163b0a4de5b685c5fd57dea6abd51d4c343a35 Mon Sep 17 00:00:00 2001
From: ankitjavalkar
Date: Fri, 22 Jan 2016 17:49:23 +0530
Subject: Add docstring to middleware

---
 yaksh/middleware/one_session_per_user.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'yaksh/middleware/one_session_per_user.py')

diff --git a/yaksh/middleware/one_session_per_user.py b/yaksh/middleware/one_session_per_user.py
index f382652..92e888d 100644
--- a/yaksh/middleware/one_session_per_user.py
+++ b/yaksh/middleware/one_session_per_user.py
@@ -5,9 +5,23 @@ from yaksh.models import ConcurrentUser
 
 
 class OneSessionPerUserMiddleware(object):
+    """
+    Middleware to handle multiple logins with same credentials
+        - Creates a Database entry to record the current user and active session key
+        - Checks if the current user has already been logged in. If True, the new session
+          key is stored with respect to the user and the old session key is deleted,
+          effectively terminating the older session for the same user.
+        - The concurrentuser attribute of the User model refers to the ConcurrentUser
+          model object and not the concurrent_user field due to behaviour described 
+          in the Documentation
+          Link: https://docs.djangoproject.com/en/1.5/topics/auth/customizing/#extending-the-existing-user-model)
+    """
     def process_request(self, request):
         if isinstance(request.user, User):
             current_key = request.session.session_key
+            # 
+            # Documentation: 
+            # https://docs.djangoproject.com/en/1.5/topics/auth/customizing/#extending-the-existing-user-model
             if hasattr(request.user, 'concurrentuser'):
                 active_key = request.user.concurrentuser.session_key
                 if active_key != current_key:
-- 
cgit