diff --git a/pam_custom.py b/pam_custom.py
index e710533..249112e 100644
--- a/pam_custom.py
+++ b/pam_custom.py
@@ -3,6 +3,7 @@
 '''
     pam-custom
     Copyright (C) 2013 Loris Tisisno <loris.tissino@gmail.com>
+    Copyright (C) 2017 Netsyms Technologies <admin@netsyms.com>
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -19,9 +20,41 @@
 '''
 
 import os
+import requests
+import json
+
+api_url = "http://localhost/portal/api.php"
+api_key = "123"
+
+def totp_verify(user, totp):
+  req = {"key": api_key, "action": "verifytotp", "username": user, "code": totp}
+  resp = requests.post(api_url, data=req)
+  if resp.json()['status'] == "OK":
+    if resp.json()['valid'] == True:
+      return True
+  return False
+
+def totp_check(user, pamh):
+  req = {"key": api_key, "action": "hastotp", "username": user}
+  resp = requests.post(api_url, data=req)
+  if resp.json()['status'] == "OK":
+    if resp.json()['otp'] == True:
+      otpmsg = pamh.Message(pamh.PAM_PROMPT_ECHO_OFF, "[Portal] enter 2-factor auth code for " + user + ": ")
+      rsp = pamh.conversation(otpmsg)
+      otpcode = rsp.resp
+      return totp_verify(user, otpcode)
+    else:
+      return True
+  return False
+
+def portal_auth(user, password, pamh):
+  req = {"key": api_key, "action": "auth", "username": user, "password": password}
+  resp = requests.post(api_url, data=req)
+  if resp.json()['status'] == "OK":
+     return totp_check(user, pamh)
+  else:
+    return False
 
-def custom_auth(user, password, command):
-  return os.system(command + ' ' + user + ' ' + password) == 0
 
 def pam_sm_authenticate(pamh, flags, argv):
 
@@ -36,18 +69,18 @@ def pam_sm_authenticate(pamh, flags, argv):
     password = pamh.authtok
     if password == None:
       ## got no password in authtok - trying through conversation...
-      passmsg = pamh.Message(pamh.PAM_PROMPT_ECHO_OFF, "Custom auth: ")
+      passmsg = pamh.Message(pamh.PAM_PROMPT_ECHO_OFF, "[Portal] enter password for " + user + ": ")
       rsp = pamh.conversation(passmsg)
       password = rsp.resp
       # so we should at this point have the password either through the
       # prompt or from previous module
 
-    if custom_auth(user, password, argv[1]):
+    if portal_auth(user, password, pamh):
       return pamh.PAM_SUCCESS
     else:
       return pamh.PAM_AUTH_ERR
 
-  except pamh.exception, e:
+  except pamh.exception as e:
     return e.pam_result
 
 def pam_sm_setcred(pamh, flags, argv):