Starting work on app framework. Changes to config.php

[z_archive/KronOS.git] / application / models / session.php

diff --git a/application/models/session.php b/application/models/session.php
new file mode 100644 (file)
index 0000000..7e3c161
--- /dev/null
+++ b/application/models/session.php
@@ -0,0 +1,135 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Session extends CI_Model {
+       public function __construct() {
+               $this->load->model('user');
+
+               $this->apps = array();
+
+               # Required
+               parent::__construct();
+       }
+
+       protected function setError($error) {
+               $this->lastError = $error;
+               return FALSE;
+       }
+       public function getError() {
+               return $this->lastError;
+       }
+
+       protected function getApp($aid, $iid, $file, $class) {
+               if (!is_file($this->config->item('app_prefix').$file)) {
+                       return setError('App file does not exist');
+               }
+               if (!(@include_once $this->config->item('app_prefix').$file)) {
+                       return setError('Include error');
+               }
+
+               return new ($class)($iid)
+       }
+       public function getAppInst($iid) {
+               if ($this->apps[$iid]) {
+                       return $this->apps[$iid];
+               } else {
+                       $this->db->select('aid');
+                       $this->db->where('iid', $iid);
+                       $q = $this->db->get('session_apps');
+                       if ($q->num_rows() == 0)
+                               return FALSE;
+                       $row = $q->row();
+                       $aid = $row->aid;
+
+                       $this->db->select('classname, filename');
+                       $this->db->where('aid', $aid);
+                       $q = $this->db->get('apps');
+                       if ($q->num_rows() == 0)
+                               return FALSE;
+                       $row = $q->row();
+                       return $this->getApp($aid, $iid, $row->filename, $row->classname);
+               }
+       }
+
+       public function openApp($aid) {
+               $sid = $this->user->sid();
+               $level = $this->user->level();
+
+               $this->db->select('classname, filename, access');
+               $this->db->where('aid', $aid);
+               $q = $this->db->get('apps');
+               if ($q->num_rows() == 0)
+                       return setError('No such app');
+               $row = $q->row();
+               if (!$level)
+                       return setError('No access');
+               elseif ($row->access == 'operator' && $level == 'user')
+                       return setError('No access');
+               elseif ($row->access == 'manager' && $level != 'maneger')
+                       return setError('No access');
+               // they have access, go on
+
+               $idata = array(
+                       'sid' => $this->user->sid(),
+                       'aid' => $aid,
+               );
+               $this->db->insert('session_apps', $idata);
+
+
+               $app = $this->getApp($aid, $this->db->insert_id(), $row->filename, $row->classname);
+               if ($app) {
+                       $app->opening();
+                       $this->apps[$iid] = $app;
+               }
+               return $app;
+       }
+       public function closeApp($iid) {
+               $app = $this->getAppInst($iid);
+               $app->closing();
+
+               $this->db->where('iid', $iid);
+               $this->db->delete('session_apps');
+       }
+
+       // UNUSED HERE, REMOVE
+       public function do_login($uid) {
+               $this->db->select('display_name, level');
+               $this->db->where('uid', $uid);
+               $q = $this->db->get('users');
+               if ($q->num_rows() == 0)
+                       return FALSE;
+               $row = $q->row();
+               $this->uid($uid);
+               $this->display_name($row->display_name);
+               $this->level($row->level);
+
+               $sdata = array(
+                       'uid' => $uid,
+                       'started' => time(),
+                       'last' => time(),
+                       'lockip' => $this->input->ip_address(),
+               );
+               $this->db->insert('sessions', $sdata);
+               $this->sid($this->db->insert_id());
+
+               return $this->sid();
+       }
+
+       public function sid($new=NULL) {
+               if (!empty($new)) {
+                       $old = $this->cached_sid;
+                       $this->cached_sid = $new;
+                       return $old;
+               }
+
+               if (isset($this->cached_sid) && $this->cached_sid != 0) {
+                       return $this->cached_sid;
+               } else {
+                       // TODO IP-lock checking...
+                       $this->cached_sid = $this->input->cookie('session_id');
+                       if ($this->cached_sid != 0) {
+                               return $this->cached_sid;
+                       }
+               }
+               return FALSE; // fallback to this
+       }
+}