ILIAS  release_4-4 Revision
class.ilObjLinkResourceAccess.php
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1 <?php
2 
3 /* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */
4 
5 include_once("./Services/Object/classes/class.ilObjectAccess.php");
6 
17 {
18  static $item = array();
19  static $single_link = array();
20 
33  function _getCommands()
34  {
35  $commands = array
36  (
37  array("permission" => "read", "cmd" => "", "lang_var" => "show",
38  "default" => true),
39  array("permission" => "write", "cmd" => "editLinks", "lang_var" => "edit_content"),
40  array("permission" => "write", "cmd" => "settings", "lang_var" => "settings")
41  );
42 
43  return $commands;
44  }
45 
49  function _checkGoto($a_target)
50  {
51  global $ilAccess;
52 
53  $t_arr = explode("_", $a_target);
54 
55  if ($t_arr[0] != "webr" || ((int) $t_arr[1]) <= 0)
56  {
57  return false;
58  }
59 
60  if ($ilAccess->checkAccess("read", "", $t_arr[1]) ||
61  $ilAccess->checkAccess("visible", "", $t_arr[1]))
62  {
63  return true;
64  }
65  return false;
66  }
67 
80  public function _checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id = "")
81  {
82  global $rbacsystem;
83 
84  // Set offline if no valid link exists
85  if($a_permission == 'read')
86  {
87  if(!self::_getFirstLink($a_obj_id) && !$rbacsystem->checkAccessOfUser($a_user_id,'write',$a_ref_id))
88  {
89  return false;
90  }
91  }
92 
93  if ($a_cmd == "settings")
94  {
95  if (self::_checkDirectLink($a_obj_id))
96  {
97  return false;
98  }
99  }
100  return parent::_checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id);
101  }
102 
111  public static function _getFirstLink($a_webr_id)
112  {
113  global $ilDB;
114 
115  if (isset(self::$item[$a_webr_id]))
116  {
117  return self::$item[$a_webr_id];
118  }
119  $query = "SELECT * FROM webr_items ".
120  "WHERE webr_id = ". $ilDB->quote($a_webr_id ,'integer').' '.
121  "AND active = ".$ilDB->quote(1,'integer').' ';
122  $res = $ilDB->query($query);
123 
124  while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
125  {
126  $item['title'] = $row->title;
127  $item['description'] = $row->description;
128  $item['target'] = $row->target;
129  $item['active'] = (bool) $row->active;
130  $item['disable_check'] = $row->disable_check;
131  $item['create_date'] = $row->create_date;
132  $item['last_update'] = $row->last_update;
133  $item['last_check'] = $row->last_check;
134  $item['valid'] = $row->valid;
135  $item['link_id'] = $row->link_id;
136  self::$item[$row->webr_id] = $item;
137  }
138  return $item ? $item : array();
139  }
140 
146  function _preloadData($a_obj_ids, $a_ref_ids)
147  {
148  global $ilDB, $ilUser;
149 
150  $res = $ilDB->query(
151  "SELECT * FROM webr_items WHERE ".
152  $ilDB->in("webr_id", $a_obj_ids, false, "integer").
153  " AND active = ". $ilDB->quote(1,'integer'));
154  foreach ($a_obj_ids as $id)
155  {
156  self::$item[$id] = array();
157  }
158  while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
159  {
160  $item['title'] = $row->title;
161  $item['description'] = $row->description;
162  $item['target'] = $row->target;
163  $item['active'] = (bool) $row->active;
164  $item['disable_check'] = $row->disable_check;
165  $item['create_date'] = $row->create_date;
166  $item['last_update'] = $row->last_update;
167  $item['last_check'] = $row->last_check;
168  $item['valid'] = $row->valid;
169  $item['link_id'] = $row->link_id;
170  self::$item[$row->webr_id] = $item;
171  }
172  }
173 
179  static function _checkDirectLink($a_obj_id)
180  {
181  if(isset(self::$single_link[$a_obj_id]))
182  {
183  return self::$single_link[$a_obj_id];
184  }
185  include_once './Modules/WebResource/classes/class.ilLinkResourceItems.php';
186  return self::$single_link[$a_obj_id] = ilLinkResourceItems::_isSingular($a_obj_id);
187  }
188 
189 }
190 
191 ?>
static _isSingular($a_webr_id)
Check whether there is only one active link in the web resource.
_checkGoto($a_target)
check whether goto script will succeed
const DB_FETCHMODE_OBJECT
Definition: class.ilDB.php:11
static _checkDirectLink($a_obj_id)
Check whether there is only one active link in the web resource.
_checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id="")
checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAcce...
static _getFirstLink($a_webr_id)
Get first link item Check before with _isSingular() if there is more or less than one...
global $ilUser
Definition: imgupload.php:15
Class ilObjectAccess.
Class ilObjLinkResourceAccess.
_preloadData($a_obj_ids, $a_ref_ids)
Preload data.