start the new topics route and view

app/auth.py

@@ -1,4 +1,7 @@
+from flask import session, flash
+from .models import Sessions
 from argon2 import PasswordHasher
+import time
 
 ph = PasswordHasher()
 
@@ -10,3 +13,16 @@ def verify(expected, given):
         return ph.verify(expected, given)
     except:
         return False
+
+def is_logged_in():
+    if "pyrom_session_key" not in session:
+        return False
+    sess = Sessions.find({"key": session["pyrom_session_key"]})
+    if not sess:
+        return False
+    if sess.expires_at < int(time.time()):
+        session.clear()
+        sess.delete()
+        # flash('Your session expired.;Please log in again.', InfoboxKind.INFO)
+        return False
+    return True