application/models/msession.php

   1 <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
   2
   3 /* TODO: check if app was succesfully opened, if not delete the instance */
   4
   5 class Msession extends CI_Model {
   6         public function __construct() {
   7                 $this->load->model('user');
   8
   9                 $this->apps = array();
  10
  11                 # Required
  12                 parent::__construct();
  13         }
  14
  15         protected function setError($error) {
  16                 trigger_error($error);
  17                 $this->lastError = $error;
  18                 return FALSE;
  19         }
  20         public function getError() {
  21                 return $this->lastError;
  22         }
  23
  24         protected function getApp($aid, $iid, $file, $class) {
  25                 if (!is_file($this->config->item('app_prefix').$file)) {
  26                         return $this->setError('App file does not exist');
  27                 }
  28                 if (!(include_once $this->config->item('app_prefix').$file)) {
  29                         return $this->setError('Include error');
  30                 }
  31
  32                 return new $class($iid);
  33         }
  34         public function getAppInst($iid) {
  35                 if ($this->apps[$iid]) {
  36                         return $this->apps[$iid];
  37                 } else {
  38                         $this->db->select('aid');
  39                         $this->db->where('iid', $iid);
  40                         $q = $this->db->get('session_apps');
  41                         if ($q->num_rows() == 0)
  42                                 return FALSE;
  43                         $row = $q->row();
  44                         $aid = $row->aid;
  45
  46                         $this->db->select('classname, filename');
  47                         $this->db->where('aid', $aid);
  48                         $q = $this->db->get('apps');
  49                         if ($q->num_rows() == 0)
  50                                 return FALSE;
  51                         $row = $q->row();
  52                         return $this->getApp($aid, $iid, $row->filename, $row->classname);
  53                 }
  54         }
  55
  56         public function openCoreApp($name) {
  57                 $idata = array(
  58                         'sid' => $this->user->sid(),
  59                         'aid' => -1,
  60                 );
  61                 $this->db->insert('session_apps', $idata);
  62                 $iid = $this->db->insert_id();
  63
  64                 $app = $this->getApp(-1, $iid, 'core/'.$name.'.php', ucfirst($name));
  65                 if ($app) {
  66                         $app->opening();
  67                         $this->apps[$iid] = $app;
  68                 }
  69                 return $app;
  70         }
  71         public function openApp($aid) {
  72                 $sid = $this->user->sid();
  73                 $level = $this->user->level();
  74
  75                 $this->db->select('classname, filename, access');
  76                 $this->db->where('aid', $aid);
  77                 $q = $this->db->get('apps');
  78                 if ($q->num_rows() == 0)
  79                         return $this->setError('No such app');
  80                 $row = $q->row();
  81                 if (!$level)
  82                         return $this->setError('No access');
  83                 elseif ($row->access == 'operator' && $level == 'user')
  84                         return $this->setError('No access');
  85                 elseif ($row->access == 'manager' && $level != 'manager')
  86                         return $this->setError('No access');
  87                 // they have access, go on
  88
  89                 $idata = array(
  90                         'sid' => $this->user->sid(),
  91                         'aid' => $aid,
  92                 );
  93                 $this->db->insert('session_apps', $idata);
  94                 $iid = $this->db->insert_id();
  95
  96                 $app = $this->getApp($aid, $iid, $row->filename, $row->classname);
  97                 if ($app) {
  98                         $app->opening();
  99                         $this->apps[$iid] = $app;
 100                 }
 101                 return $app;
 102         }
 103         public function closeApp($iid) {
 104                 $app = $this->getAppInst($iid);
 105                 $app->closing();
 106
 107                 $this->db->where('iid', $iid);
 108                 $this->db->delete('session_apps');
 109         }
 110
 111         // UNUSED HERE, REMOVE
 112         public function do_login($uid) {
 113                 $this->db->select('display_name, level');
 114                 $this->db->where('uid', $uid);
 115                 $q = $this->db->get('users');
 116                 if ($q->num_rows() == 0)
 117                         return FALSE;
 118                 $row = $q->row();
 119                 $this->uid($uid);
 120                 $this->display_name($row->display_name);
 121                 $this->level($row->level);
 122
 123                 $sdata = array(
 124                         'uid' => $uid,
 125                         'started' => time(),
 126                         'last' => time(),
 127                         'lockip' => $this->input->ip_address(),
 128                 );
 129                 $this->db->insert('sessions', $sdata);
 130                 $this->sid($this->db->insert_id());
 131
 132                 return $this->sid();
 133         }
 134
 135         public function sid($new=NULL) {
 136                 if (!empty($new)) {
 137                         $old = $this->cached_sid;
 138                         $this->cached_sid = $new;
 139                         return $old;
 140                 }
 141
 142                 if (isset($this->cached_sid) && $this->cached_sid != 0) {
 143                         return $this->cached_sid;
 144                 } else {
 145                         // TODO IP-lock checking...
 146                         $this->cached_sid = $this->input->cookie('session_id');
 147                         if ($this->cached_sid != 0) {
 148                                 return $this->cached_sid;
 149                         }
 150                 }
 151                 return FALSE; // fallback to this
 152         }
 153 }