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<?php
// $Header: /cvsroot/phpldapadmin/phpldapadmin/lib/Tree.php,v 1.2.2.2 2008/01/27 07:23:43 wurley Exp $
/**
* @package phpLDAPadmin
* @author The phpLDAPadmin development team
* @author Xavier Bruyet
*
* Abstract class which represents the LDAP tree view ; the draw() method
* must be implemented by subclasses
* @see HTMLTree PLMTree
*/
abstract class Tree {
// list of entries in the tree view cache
// array : dn -> Entry
protected $entries = array();
// list of entries which are not visible in the tree view
// array : dn -> (true|false)
protected $misses = array();
// ldap server id represented by this tree
protected $server_id = -1;
protected function __construct($server_id) {
$this->server_id = $server_id;
}
static public function getInstance($server_id) {
$tree = get_cached_item($server_id,'tree');
if (!$tree) {
$ldapserver = $_SESSION[APPCONFIG]->ldapservers->Instance($server_id);
if (!$ldapserver) return null;
$treeclass = $_SESSION[APPCONFIG]->GetValue('appearance','tree');
eval('$tree = new '.$treeclass.'($server_id);');
foreach ($ldapserver->getBaseDN() as $baseDn)
if ($baseDn)
$tree->addEntry($baseDn);
set_cached_item($server_id,'tree','null',$tree);
}
return $tree;
}
public function getLdapServer() {
return $_SESSION[APPCONFIG]->ldapservers->Instance($this->server_id);
}
/**
* This function will take the DN, convert it to lowercase and strip unnessary
* commas. This result will be used as the index for the tree object.
* Any display of a DN should use the object->dn entry, not the index.
* The reason we need to do this is because:
* uid=User A,ou=People,c=AU and
* uid=User B, ou=PeOpLe, c=au
* are infact in the same branch, but PLA will show them inconsistently.
*/
public function indexDN($dn) {
$index = strtolower(join(',',pla_explode_dn($dn)));
if (DEBUG_ENABLED)
debug_log('Entered with (%s), Result (%s)',1,__FILE__,__LINE__,__METHOD__,$dn,$index);
return $index;
}
/**
* Add an entry in the tree view ; the entry is added in the
* children array of its parent
*
* The added entry is created using the factory class defined
* in $_SESSION[APPCONFIG]->custom->appearance['entry_factory']
*
* @param $dn the dn of the entry to create
*/
public function addEntry($dn) {
if (DEBUG_ENABLED)
debug_log('Entered with (%s)',1,__FILE__,__LINE__,__METHOD__,$dn);
$ldapserver = $_SESSION[APPCONFIG]->ldapservers->Instance($this->server_id);
# We need to convert the DN to lower case, to avoid any case problems and strip any unnessary spaces after commas.
$dnlower = $this->indexDN($dn);
# If the parent entry is not in the tree, we add it
$bases = $ldapserver->getBaseDN();
if (! $bases)
$bases = array('');
elseif (! is_array($bases))
$bases = array($bases);
if (DEBUG_ENABLED)
debug_log('Got BaseDNs (%s)',64,__FILE__,__LINE__,__METHOD__,$bases);
$parent_entry = null;
if (! in_array_ignore_case($dn,$bases)) {
$parent_dn = get_container($dn);
if (DEBUG_ENABLED)
debug_log('Parent DNs (%s)',64,__FILE__,__LINE__,__METHOD__,$parent_dn);
if ($parent_dn) {
$parent_entry = $this->getEntry($parent_dn);
if (! $parent_entry) {
$this->addEntry($parent_dn);
$parent_entry = $this->getEntry($parent_dn);
}
} else {
if (DEBUG_ENABLED)
debug_log('NO parent, entry (%s) ignored.',64,__FILE__,__LINE__,__METHOD__,$dn);
}
}
if (isset($this->entries[$dnlower]))
unset($this->entries[$dnlower]);
# If this DN is in our miss list, we can remove it now.
if (isset($this->misses[$dnlower]))
unset($this->misses[$dnlower]);
$entryfactoryclass = $_SESSION[APPCONFIG]->GetValue('appearance','entry_factory');
eval('$entry_factory = new '.$entryfactoryclass.'();');
if (DEBUG_ENABLED)
debug_log('New ENTRY (%s) for (%s).',64,__FILE__,__LINE__,__METHOD__,$dnlower,$dn);
$this->entries[$dnlower] = $entry_factory->newEditingEntry($dn);
$this->entries[$dnlower]->setTree($ldapserver->server_id);
if ($ldapserver->isReadOnly())
$this->entries[$dnlower]->setReadOnly();
# Update this DN's parent's children list as well.
if ($parent_entry)
$parent_entry->addChild($dn);
if (DEBUG_ENABLED)
debug_log('Leaving (%s)',1,__FILE__,__LINE__,__METHOD__,$dn);
}
/**
* Delete an entry from the tree view ; the entry is deleted from the
* children array of its parent
*/
public function delEntry($dn) {
if (DEBUG_ENABLED)
debug_log('Entered with (%s)',1,__FILE__,__LINE__,__METHOD__,$dn);
$dnlower = $this->indexDN($dn);
if (isset($this->entries[$dnlower])) unset($this->entries[$dnlower]);
# Delete entry from parent's children as well.
$parent_dn = get_container($dn);
$parent_entry = $this->getEntry($parent_dn);
if ($parent_entry) $parent_entry->delChild($dn);
# Might be worthwhile adding it to our miss list, while we are here.
$this->misses[$dnlower] = true;
}
public function renameEntry($oldDn, $newDn) {
if (DEBUG_ENABLED)
debug_log('Entered with (%s,%s)',1,__FILE__,__LINE__,__METHOD__,$oldDn,$newDn);
$olddnlower = $this->indexDN($oldDn);
$newdnlower = $this->indexDN($newDn);
$this->entries[$newdnlower] = $this->entries[$olddnlower];
unset($this->entries[$olddnlower]);
$this->entries[$newdnlower]->rename($newDn);
# Might be worthwhile adding it to our miss list, while we are here.
$this->misses[$olddnlower] = true;
if (isset($this->misses[$newdnlower])) unset($this->misses[$newdnlower]);
# Update the parent's children
$parent_dn = get_container($newDn);
$parent_entry = $this->getEntry($parent_dn);
if ($parent_entry) {
$parent_entry->delChild($oldDn);
$parent_entry->addChild($newDn);
}
}
public function getEntry($dn) {
$dnlower = $this->indexDN($dn);
if (isset($this->entries[$dnlower]))
return $this->entries[$dnlower];
else
return null;
}
public function isMissed($dn) {
$dnlower = $this->indexDN($dn);
return isset($this->misses[$dnlower]) && $this->misses[$dnlower];
}
/**
* Displays the LDAP tree
*/
abstract public function draw();
}
?>
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