inc/hierarchy.inc

   1 <?php
   2 /* This program is free software. It comes without any warranty, to
   3  * the extent permitted by applicable law. You can redistribute it
   4  * and/or modify it under the terms of the Do What The Fuck You Want
   5  * To Public License, Version 2, as published by Sam Hocevar. See
   6  * http://sam.zoy.org/wtfpl/COPYING for more details. */
   7
   8
   9 class permissions {
  10
  11 function isHierarch($node) {
  12
  13         global $db;
  14         $user_id=$_SESSION['user_id'];
  15         $hierarchy=explode(';',$node['node_vector']);
  16         foreach ($hierarchy as $hierarch) {
  17                 $q="select nodes.node_creator,node_access.node_permission from nodes left join node_access on nodes.node_id=node_access.node_id and node_access.user_id='".$_SESSION['user_id']."' where nodes.node_id='$hierarch'";
  18                 $result=$db->query($q);
  19                 $result->next();
  20                 if ($result->getString('node_creator')==$user_id)
  21                         return true;
  22                 if ($result->getString('node_permission')=='master')
  23                         return true;
  24                 if ($result->getString('node_creaotr')=='operator')
  25                         return true;
  26         }
  27         return false;
  28
  29 }
  30
  31 function checkPermissions($node) {
  32 global $db;
  33 $user_id=$_SESSION['user_id'];
  34
  35 //thousand lights to Hierarchy!
  36 if (($node['node_system_access']!='public' and $node['node_system_access']!='crypto') and empty($node['node_permission'])) {
  37         $hierarchy=array_reverse(explode(';',$node['node_vector']));
  38         foreach ($hierarchy as $hierarch) {
  39                 $q="select nodes.node_system_access,node_access.node_permission from nodes left join node_access on nodes.node_id=node_access.node_id and node_access.user_id='".$_SESSION['user_id']."' where nodes.node_id='$hierarch'";
  40                 $result=$db->query($q);
  41                 $result->next();
  42                 $hierarchy_bounce[]=$hierarch;
  43                 if ($result->getString('node_permission')!='') {
  44                         array_pop($hierarchy_bounce);
  45                         $node['node_permission']=$result->getString('node_permission');
  46                         foreach ($hierarchy_bounce as $hierarch_bounce) {
  47                                 $q="update node_access set node_permission='".$result->getString('node_permission')."' where node_id='$hierarch_bounce' and user_id='".$_SESSION['user_id']."'";
  48                                 $updated=$db->update($q);
  49                                 if (!$updated) {
  50                                         $q="insert into node_access set node_permission='".$result->getString('node_permission')."', node_id='$hierarch_bounce',user_id='".$_SESSION['user_id']."'";
  51                                         $db->query($q);
  52                                 }
  53                         }
  54                         break;
  55                 }
  56                 elseif ($result->getString('node_creator')=='$user_id') {
  57                         array_pop($hierarchy_bounce);
  58                         foreach ($hierarchy_bounce as $hierarch_bounce) {
  59                                 $q="update node_access set node_permission='access' where node_id='$hierarch_bounce' and user_id='".$_SESSION['user_id']."'";
  60                                 $updated=$db->update($q);
  61                                 if (!$updated) {
  62                                         $q="insert into node_access set node_permission='access', node_id='$hierarch_bounce',user_id='".$_SESSION['user_id']."'";
  63                                         $db->query($q);
  64                                 }
  65                         }
  66                         break;
  67                 }
  68                 elseif ($result->getString('node_system_access')=='public') {
  69                         break;
  70                 }
  71         }
  72
  73 }
  74
  75
  76 //setting permissions for not logged in users
  77 if ($_SESSION['user_id']==$node['node_creator']) {
  78                 $permissions['r']=true;
  79                 $permissions['w']=true;
  80 }
  81
  82 elseif (!$_SESSION['user_id']) {
  83
  84         if ($node['node_external_access']=='yes' AND ($node['node_system_access']=='public' OR $node['node_system_access']=='moderated')) {
  85                 $permissions['r']=true;
  86                 $permissions['w']=false;
  87
  88         }
  89
  90         else {
  91
  92                 $permissions['r']=false;
  93                 $permissions['w']=false;
  94         }
  95 }
  96
  97 //setting permissions for personal node
  98 elseif ($node['node_system_access']=='personal') {
  99
 100         if ($_SESSION['user_id']!=$node['node_creator']) {
 101                 $permissions['r']=false;
 102                 $permissions['w']=false;
 103         }
 104         else {
 105                 $permissions['r']=true;
 106                 $permissions['w']=true;
 107         }
 108 }
 109
 110 //setting permissions for private node
 111 elseif ($node['node_system_access']=='private') {
 112
 113         if (empty($node['node_permission'])) {
 114                 $permissions['r']=false;
 115                 $permissions['w']=false;
 116         }
 117         elseif($node['node_permission']=='silence') {
 118                 $permissions['r']=true;
 119                 $permissions['w']=false;
 120         }
 121         else {
 122
 123                 $permissions['r']=true;
 124                 $permissions['w']=true;
 125         }
 126 }
 127
 128 //setting permissions for moderated node
 129 elseif ($node['node_system_access']=='moderated') {
 130         if (($node['node_permission']=='access')||($node['node_permission']=='op')||($node['node_permission']=='master')) {
 131                         $permissions['r']=true;
 132                         $permissions['w']=true;
 133                 }
 134                 else {
 135                         $permissions['r']=true;
 136                         $permissions['w']=false;
 137                 }
 138 }
 139
 140 //setting rights for public node
 141 elseif ($node['node_system_access']=='public') {
 142         if ($node['node_permission']=='silence') {
 143                 $permissions['r']=true;
 144                 $permissions['w']=false;
 145         }
 146
 147         elseif ($node['node_permission']=='ban') {
 148                 $permissions['r']=false;
 149                 $permissions['w']=false;
 150         }
 151
 152
 153         else {
 154                 $permissions['r']=true;
 155                 $permissions['w']=true;
 156         }
 157 }
 158
 159
 160 else {
 161                 $permissions['r']=true;
 162                 $permissions['w']=true;
 163 }
 164
 165 return $permissions;
 166 }
 167
 168 }
 169
 170 ?>