CRM/Core/Permission/Drupal.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.5                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2014                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
  18  |                                                                    |
  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26 */
  27
  28 /**
  29  *
  30  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2014
  32  * $Id$
  33  *
  34  */
  35
  36 /**
  37  *
  38  */
  39 class CRM_Core_Permission_Drupal extends CRM_Core_Permission_DrupalBase{
  40
  41   /**
  42    * Is this user someone with access for the entire system
  43    *
  44    * @var boolean
  45    */
  46   protected $_viewAdminUser = FALSE;
  47   protected $_editAdminUser = FALSE;
  48
  49   /**
  50    * Am in in view permission or edit permission?
  51    * @var boolean
  52    */
  53   protected $_viewPermission = FALSE;
  54   protected $_editPermission = FALSE;
  55
  56   /**
  57    * The current set of permissioned groups for the user
  58    *
  59    * @var array
  60    */
  61   protected $_viewPermissionedGroups;
  62   protected $_editPermissionedGroups;
  63
  64
  65   /**
  66    * Given a permission string, check for access requirements
  67    *
  68    * @param string $str the permission to check
  69    *
  70    * @param int $contactID
  71    *
  72    * @return boolean true if yes, else false
  73    * @access public
  74    */
  75   function check($str, $contactID = NULL) {
  76     $str = $this->translatePermission($str, 'Drupal', array(
  77       'view user account' => 'access user profiles',
  78       'administer users' => 'administer users',
  79     ));
  80     if ($str == CRM_Core_Permission::ALWAYS_DENY_PERMISSION) {
  81       return FALSE;
  82     }
  83     if ($str == CRM_Core_Permission::ALWAYS_ALLOW_PERMISSION) {
  84       return TRUE;
  85     }
  86     if (function_exists('user_access')) {
  87       return user_access($str) ? TRUE : FALSE;
  88     }
  89     return TRUE;
  90   }
  91
  92   /**
  93    * Given a roles array, check for access requirements
  94    *
  95    * @param array $array the roles to check
  96    *
  97    * @return boolean true if yes, else false
  98    * @access public
  99    */
 100   function checkGroupRole($array) {
 101     if (function_exists('user_load') && isset($array)) {
 102       $user = user_load( $GLOBALS['user']->uid);
 103       //if giver roles found in user roles - return true
 104       foreach ($array as $key => $value) {
 105         if (in_array($value, $user->roles)) {
 106           return TRUE;
 107         }
 108       }
 109     }
 110     return FALSE;
 111   }
 112
 113   /**
 114    * {@inheritDoc}
 115    */
 116   public function isModulePermissionSupported() {
 117     return TRUE;
 118   }
 119
 120   /**
 121    * {@inheritdoc}
 122    */
 123   function upgradePermissions($permissions) {
 124     if (empty($permissions)) {
 125       throw new CRM_Core_Exception("Cannot upgrade permissions: permission list missing");
 126     }
 127     $query = db_delete('role_permission')
 128       ->condition('module', 'civicrm')
 129       ->condition('permission', array_keys($permissions), 'NOT IN');
 130     $query->execute();
 131   }
 132
 133   /**
 134    * Get all the contact emails for users that have a specific permission
 135    *
 136    * @param string $permissionName name of the permission we are interested in
 137    *
 138    * @return string a comma separated list of email addresses
 139    */
 140   public function permissionEmails($permissionName) {
 141     static $_cache = array();
 142
 143     if (isset($_cache[$permissionName])) {
 144       return $_cache[$permissionName];
 145     }
 146
 147     $uids = array();
 148     $sql = "
 149       SELECT {users}.uid, {role_permission}.permission
 150       FROM {users}
 151       JOIN {users_roles}
 152         ON {users}.uid = {users_roles}.uid
 153       JOIN {role_permission}
 154         ON {role_permission}.rid = {users_roles}.rid
 155       WHERE {role_permission}.permission = '{$permissionName}'
 156         AND {users}.status = 1
 157     ";
 158
 159     $result = db_query($sql);
 160     foreach ( $result as $record ) {
 161       $uids[] = $record->uid;
 162     }
 163
 164     $_cache[$permissionName] = self::getContactEmails($uids);
 165     return $_cache[$permissionName];
 166   }
 167 }
 168