Add basic portal functionality

portal/check_login.php

@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * Client Portal
+ * Checks if the client is logged in or not
+ */
+
+if(!isset($_SESSION)){
+  // HTTP Only cookies
+  ini_set("session.cookie_httponly", True);
+  if($config_https_only){
+    // Tell client to only send cookie(s) over HTTPS
+    ini_set("session.cookie_secure", True);
+  }
+  session_start();
+}
+
+if(!$_SESSION['client_logged_in']){
+  header("Location: login.php");
+  die;
+}
+
+// SESSION FINGERPRINT
+$session_ip = strip_tags(mysqli_real_escape_string($mysqli,get_ip()));
+$session_os = strip_tags(mysqli_real_escape_string($mysqli,get_os()));
+
+// Get user agent
+$session_user_agent = strip_tags(mysqli_real_escape_string($mysqli,$_SERVER['HTTP_USER_AGENT']));
+
+// Get client info
+$session_client_id = $_SESSION['client_id'];
+$session_contact_id = $_SESSION['contact_id'];
+