git.roojs.org Git - Pman.Core/blob - Lock.php

   1 <?php
   2
   3
   4 require_once 'Pman.php';
   5
   6 class Pman_Core_Lock extends Pman
   7 {
   8
   9     function getAuth()
  10     {
  11          $au = $this->getAuthUser();
  12         if (!$au) {
  13              $this->jerr("Not authenticated", array('authFailure' => true));
  14         }
  15         $this->authUser = $au;
  16         // check that it's a supplier!!!!
  17
  18         return true;
  19     }
  20
  21     function get($action)
  22     {
  23
  24         // default action is to attempt to lock..
  25         $action = empty($action) ? 'lock' : 'unlock';
  26         $this->$action($curlock);
  27
  28
  29
  30
  31     }
  32
  33     function unlock($curlock)
  34     {
  35
  36         if (empty($_REQUEST['id'])) {
  37             $this->jerr("No lock id");
  38         }
  39         $curlock = DB_DataObject::factory('Core_locking');
  40         if (!$curlock->get($_REQUEST['id'])) {
  41             $this->jerr("No lock exists");
  42         }
  43
  44         if ($curlock->person_id != $this->authUser->id) {
  45             $this->jerr("Lock id is invalid");
  46         }
  47
  48         $curlock->delete();
  49
  50         $this->jok('unlocked');
  51     }
  52     function lock()
  53     {
  54
  55         if (empty($_REQUEST['on_id']) || empty($_REQUEST['on_table'])) {
  56             $this->jerr("Missing table or id");
  57         }
  58
  59         $tab = str_replace('/', '',$_REQUEST['on_table']); // basic protection??
  60         $x = DB_DataObject::factory($tab);
  61         if (!$x->get($_REQUEST['on_id'])) {
  62             $this->jerr("Item does not exist");
  63         }
  64         // is there a current lock on the item..
  65
  66         $curlock = DB_DataObject::factory('Core_locking');
  67         $curlock->setFrom(array(
  68             'on_id' => $_REQUEST['on_id'],
  69             'on_table' => $_REQUEST['on_table']
  70         ));
  71         if ($curlock->count()) {
  72             $err  = $this->canUnlock();
  73             if ($err !== true) {
  74                 $this->jerr($err);
  75             }
  76         }
  77         // make a lock..
  78
  79         $curlock = DB_DataObject::factory('Core_locking');
  80         $curlock->setFrom(array(
  81             'on_id' => $_REQUEST['on_id'],
  82             'on_table' => $_REQUEST['on_table'],
  83             'created' => date('Y-m-d H:i:s'),
  84             'person_id' => $this->authUser->id,
  85         ));
  86         $id = $curlock->insert();
  87         $this->jok($id);
  88
  89     }
  90
  91     function canUnlock()
  92     {
  93         // the only scenario where we can automatically unlock is:::
  94
  95         // this user owns the lock.
  96
  97         $curlock = DB_DataObject::factory('Core_locking');
  98         $curlock->setFrom(array(
  99             'on_id' => $_REQUEST['on_id'],
 100             'on_table' => $_REQUEST['on_table']
 101         ));
 102         $cc = clone($curlock);
 103         // the user who owns the lock is not logged in.. ?? - their last
 104         $curlock->find();
 105         $u = false;
 106         while ($curlock->fetch()) {
 107             $u = DB_DataObject::factory('Person');
 108             $u->get($curlock->person_id);
 109             if (!$u->isCurrentlyLoggedIn()) {
 110                 $cc = clone($curlock);
 111                 $cc->delete();
 112                 $u = false;
 113                 continue;
 114             }
 115             break;
 116
 117         }
 118         if ($u) {
 119             $this->jerr("Item is Locked by " . $u->name . ' (' . $u->email . "),  Try asking them to log out");
 120
 121         }
 122         return true;
 123
 124
 125
 126
 127
 128     }
 129
 130
 131
 132 }