Source for file Entry.php
Documentation is available at Entry.php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
* Object representation of a directory entry
* This class represents a directory entry. You can add, delete, replace
* attributes and their values, rename the entry, delete the entry.
* @author Jan Wagner <wagner@netsols.de>
* @author Tarjej Huse <tarjei@bergfald.no>
* @license http://www.gnu.org/copyleft/lesser.html LGPL
* @version CVS: $Id: Entry.php,v 1.54 2008/02/27 08:59:42 beni Exp $
* @link http://pear.php.net/package/Net_LDAP/
* Entry ressource identifier
* LDAP ressource identifier
* This object will be used for updating and schema checking
* Distinguished name of the entry
var $_attributes = array ();
* Original attributes before any modification
var $_original = array ();
* Shall the entry be deleted?
* Map with changes to the entry
var $_changes = array ("add" => array (),
* Constructor of the entry. Sets up the distinguished name and the entries
* You should not call this method manually! Use {@link Net_LDAP_Entry::createFresh()} instead!
* @param Net_LDAP|ressource|array&$ldap Net_LDAP object, ldap-link ressource or array of attributes
* @param string|ressource $entry Either a DN or a LDAP-Entry ressource
$this->PEAR ('Net_LDAP_Error');
if (is_a($ldap, 'Net_LDAP')) {
$this->_link = $ldap->getLink ();
$this->_setAttributes ($ldap); // setup attrs manually
$this->_dn = @ldap_get_dn ($this->_link, $this->_entry);
$this->_setAttributes (); // fetch attributes from server
* Creates a fresh entry that may be added to the directory later on
* Use this method, if you want to initialize a fresh entry.
* The method should be called statically: $entry = Net_LDAP_Entry::createFresh();
* You should put a 'objectClass' attribute into the $attrs so the directory server
* knows which object you want to create. However, you may omit this in case you
* don't want to add this entry to a directory server.
* The attributes parameter is as following:
* $attrs = array( 'attribute1' => array('value1', 'value2'),
* 'attribute2' => 'single value'
* @param string $dn DN of the Entry
* @param array $attrs Attributes of the entry
return PEAR ::raiseError ("Unable to create fresh entry: Parameter \$attrs needs to be an array!");
* Get or set the distinguished name of the entry
* If called without an argument the current (or the new DN if set) DN gets returned.
* If you provide an DN, this entry is moved to the new location specified if a DN existed.
* If the DN was not set, the DN gets initialized. Call {@link update()} to actually create
* the new Entry in the directory.
* To fetch the current active DN after setting a new DN but before an update(), you can use
* {@link currentDN()} to retrieve the DN that is currently active.
* Please note that special characters (eg german umlauts) should be encoded using utf8_encode().
* You may use {@link Net_LDAP_Util::canonical_dn()} for properly encoding of the DN.
* @param string $dn New distinguished name
* @return string|trueDistinguished name (or true if a new DN was provided)
return (isset ($this->_newdn) ? $this->_newdn : $this->currentDN());
* Renames or moves the entry
* This is just a convinience alias to {@link dn()}
* to make your code more meaningful.
* @param string $newdn The new DN
return $this->dn($newdn);
* Sets the internal attributes array
* This fetches the values for the attributes from the server.
* The attribute Syntax will be checked so binary attributes will be returned
* Attributes may be passed directly via the $attributes parameter to setup this
* entry manually. This overrides attribute fetching from the server.
* @param array $attributes Attributes to set for this entry
function _setAttributes ($attributes = null )
* fetch attributes from the server
if (is_a($this->_ldap, 'Net_LDAP')) {
$schema = & $this->_ldap->schema();
$attr = @ldap_first_attribute ($this->_link, $this->_entry, $ber);
$attr = @ldap_next_attribute ($this->_link, $this->_entry, $ber);
$func = 'ldap_get_values'; // standard function to fetch value
// Try to get binary values as binary data
if (is_a($schema, 'Net_LDAP_Schema')) {
if ($schema->isBinary ($attr)) {
$func = 'ldap_get_values_len';
// fetch attribute value (needs error checking?)
$attributes[$attr] = $func($this->_link, $this->_entry, $attr);
* set attribute data directly, if passed
if (isset ($attributes["count"]) && is_numeric($attributes["count"])) {
unset ($attributes["count"]);
foreach ($attributes as $k => $v) {
// attribute names should not be numeric
// map generic attribute name to real one
// attribute values should be in an array
// remove the value count (comes from ldap server)
if (isset ($v["count"])) {
$this->_attributes[$k] = $v;
// save a copy for later use
$this->_original = $this->_attributes;
* Get the values of all attributes in a hash
* The returned hash has the form
* <code>array('attributename' => 'single value',
* 'attributename' => array('value1', value2', value3'))</code>
* @return array Hash of all attributes with their values
foreach ($this->_attributes as $attr => $value) {
* Get the value of a specific attribute
* The first parameter is the name of the attribute
* The second parameter influences the way the value is returned:
* 'single': only the first value is returned as string
* 'all': all values including the value count are returned in an
* 'default': in all other cases an attribute value with a single value is
* returned as string, if it has multiple values it is returned
* as an array (without value count)
* @param string $attr Attribute name
* @param string $option Option
* @return string|array|PEAR_Errorstring, array or PEAR_Error
function getValue($attr, $option = null )
$attr = $this->_getAttrName ($attr);
return PEAR ::raiseError (" Unknown attribute ($attr) requested" );
$value = $this->_attributes[$attr];
if ($option == "single" || (count($value) == 1 && $option != 'all')) {
* Alias function of getValue for perl-ldap interface
* @return string|array|PEAR_Error
* Returns an array of attributes names
* @return array Array of attribute names
* Returns whether an attribute exists or not
* @param string $attr Attribute name
$attr = $this->_getAttrName ($attr);
* Adds a new attribute or a new value to an existing attribute
* The paramter has to be an array of the form:
* array('attributename' => 'single value',
* 'attributename' => array('value1', 'value2))
* When the attribute already exists the values will be added, else the
* attribute will be created. These changes are local to the entry and do
* not affect the entry on the server until update() is called.
* Note, that you can add values of attributes that you haven't selected, but if
* you do so, {@link getValue()} and {@link getValues()} will only return the
* values you added, _NOT_ all values present on the server. To avoid this, just refetch
* the entry after calling {@link update()} or select the attribute.
* @param array $attr Attributes to add
* @return true|Net_LDAP_Error
function add($attr = array ())
return PEAR ::raiseError ("Parameter must be an array");
foreach ($attr as $k => $v) {
$k = $this->_getAttrName ($k);
// Do not add empty values
// add new values to existing attribute
$this->_attributes[$k] = array_merge($this->_attributes[$k], $v);
$this->_attributes[$k] = $v;
// save changes for update()
if (empty ($this->_changes["add"][$k])) {
$this->_changes["add"][$k] = array ();
$this->_changes["add"][$k] = array_merge($this->_changes["add"][$k], $v);
* Deletes an whole attribute or a value or the whole entry
* The parameter can be one of the following:
* "attributename" - The attribute as a whole will be deleted
* array("attributename1", "attributename2) - All given attributes will be
* array("attributename" => "value") - The value will be deleted
* array("attributename" => array("value1", "value2") - The given values
* If $attr is null or omitted , then the whole Entry will be deleted!
* These changes are local to the entry and do
* not affect the entry on the server until {@link update()} is called.
* Please note that you must select the attribute (at $ldap->search() for example)
* to be able to delete values of it, Otherwise {@link update()} will silently fail
* @param string|array$attr Attributes to delete (NULL or missing to delete whole entry)
// Make the assumption that attribute names cannot be numeric,
// therefore this has to be a simple list of attribute names to delete
foreach ($attr as $name) {
// someone mixed modes (list mode but specific values given!)
$this->delete(array ($del_attr_name => $name));
$name = $this->_getAttrName ($name);
$this->_changes["delete"][$name] = null;
unset ($this->_attributes[$name]);
// Here we have a hash with "attributename" => "value to delete"
foreach ($attr as $name => $values) {
// someone mixed modes and gave us just an attribute name
// get the correct attribute name
$name = $this->_getAttrName ($name);
$values = array ($values);
// save values to be deleted
if (empty ($this->_changes["delete"][$name])) {
$this->_changes["delete"][$name] = array ();
$this->_changes["delete"][$name] =
array_merge($this->_changes["delete"][$name], $values);
foreach ($values as $value) {
// find the key for the value that should be deleted
unset ($this->_attributes[$name][$key]);
* Replaces attributes or its values
* The parameter has to an array of the following form:
* array("attributename" => "single value",
* "attribute2name" => array("value1", "value2"))
* If the attribute does not yet exist it will be added instead.
* If the attribue value is null, the attribute will de deleted
* These changes are local to the entry and do
* not affect the entry on the server until {@link update()} is called.
* @param array $attr Attributes to replace
* @return true|Net_LDAP_Error
return PEAR ::raiseError ("Parameter must be an array");
foreach ($attr as $k => $v) {
$k = $this->_getAttrName ($k);
// delete attributes with empty values
// existing attributes will get replaced
$this->_changes["replace"][$k] = $v;
$this->_attributes[$k] = $v;
// new ones just get added
$this->add(array ($k => $v));
* Update the entry on the directory server
* @param Net_LDAP $ldap If passed, a call to setLDAP() is issued prior update, thus switching the LDAP-server. This is for perl-ldap interface compliance
* @return true|Net_LDAP_Error
* @todo Entry rename with a DN containing special characters needs testing!
return PEAR ::raiseError ('You passed an invalid $ldap variable to update()');
// ensure we have a valid LDAP object
if (!is_a($ldap, 'Net_LDAP')) {
return PEAR ::raiseError ("The entries LDAP object is not valid");
$link = $ldap->getLink ();
if (true === $this->_delete) {
return $ldap->delete ($this);
if (true === $this->_new) {
$msg = $ldap->add ($this);
$this->_changes['add'] = array ();
$this->_changes['delete'] = array ();
$this->_changes['replace'] = array ();
$this->_original = $this->_attributes;
if (false == is_null($this->_newdn)) {
if ($ldap->getLDAPVersion () !== 3 ) {
return PEAR ::raiseError ("Renaming/Moving an entry is only supported in LDAPv3");
// make dn relative to parent (needed for ldap rename)
// maybe the dn consist of a multivalued RDN, we must build the dn in this case
// because the $child-RDN is an array!
if (false == @ldap_rename ($link, $this->_dn, $child, $parent, true )) {
return PEAR ::raiseError ("Entry not renamed: " .
@ldap_error ($link), @ldap_errno ($link));
// reflect changes to local copy
$this->_dn = $this->_newdn;
* Carry out modifications to the entry
foreach ($this->_changes["add"] as $attr => $value) {
// if attribute exists, add new values
if (false === @ldap_mod_add ($link, $this->dn(), array ($attr => $value))) {
return PEAR ::raiseError (" Could not add new values to attribute $attr: " .
@ldap_error ($link), @ldap_errno ($link));
if (false === @ldap_modify ($link, $this->dn(), array ($attr => $value))) {
return PEAR ::raiseError (" Could not add new attribute $attr: " .
@ldap_error ($link), @ldap_errno ($link));
// all went well here, I guess
unset ($this->_changes["add"][$attr]);
foreach ($this->_changes["delete"] as $attr => $value) {
// In LDAPv3 you need to specify the old values for deleting
if (is_null($value) && $ldap->getLDAPVersion () === 3 ) {
$value = $this->_original[$attr];
if (false === @ldap_mod_del ($link, $this->dn(), array ($attr => $value))) {
return PEAR ::raiseError (" Could not delete attribute $attr: " .
@ldap_error ($link), @ldap_errno ($link));
unset ($this->_changes["delete"][$attr]);
foreach ($this->_changes["replace"] as $attr => $value) {
if (false === @ldap_modify ($link, $this->dn(), array ($attr => $value))) {
return PEAR ::raiseError (" Could not replace attribute $attr values: " .
@ldap_error ($link), @ldap_errno ($link));
unset ($this->_changes["replace"][$attr]);
// all went well, so _original (server) becomes _attributes (local copy)
$this->_original = $this->_attributes;
* Returns the right attribute name
* @param string $attr Name of attribute
* @return string The right name of the attribute
function _getAttrName ($attr)
$attr = $this->_map[$name];
* Returns a reference to the LDAP-Object of this entry
* @return Net_LDAP|Net_LDAP_Error Reference to the Net_LDAP Object (the connection) or Net_LDAP_Error
if (!is_a($this->_ldap, 'Net_LDAP')) {
$err = new PEAR_Error ('LDAP is not a valid Net_LDAP object');
* Sets a reference to the LDAP-Object of this entry
* After setting a Net_LDAP object, calling update() will use that object for
* updating directory contents. Use this to dynamicly switch directorys.
* @param Net_LDAP &$ldap Net_LDAP object that this entry should be connected to
* @return true|Net_LDAP_Error
if (!is_a($ldap, 'Net_LDAP')) {
return PEAR ::raiseError ("LDAP is not a valid Net_LDAP object");
* Marks the entry as new.
* If an Entry is marked as new, it will be added to the directory when
* calling {@link update()}. This method is mainly intendet for internal
* Net_LDAP package usage, so if you use it, use it with care.
* @param boolean $mark Value to set, defaults to "true"
function _markAsNew ($mark = true )
$this->_new = ($mark)? true : false;
* Applies a regular expression onto a single- or multivalued attribute (like preg_match())
* This method behaves like PHPs preg_match() but with some exceptions.
* If you want to retrieve match information, then you MUST pass the
* $matches parameter via reference! otherwise you will get no matches.
* Since it is possible to have multi valued attributes the $matches
* array will have a additionally numerical dimension (one for each value):
* 0 => array (usual preg_match() returnarray),
* 1 => array (usual preg_match() returnarray)
* Please note, that $matches will be initialized to an empty array inside.
* $result = $entry->preg_match('/089(\d+)/', 'telephoneNumber', &$matches);
* if ( $result === true ){
* echo "First match: ".$matches[0][1]; // Match of value 1, content of first bracket
* if ( Net_LDAP::isError($result) ) {
* echo "Error: ".$result->getMessage();
* echo "No match found.";
* Please note that it is important to test for an Net_LDAP_Error, because objects are
* evaluating to true by default, thus if a error occured, and you only check using "==" then
* you get misleading results. Use the "identical" (===) operator to test for matches to
* avoid this as shown above.
* @param string $regex The regular expression
* @param string $attr_name The attribute to search in
* @param array $matches (optional, PASS BY REFERENCE!) Array to store matches in
* @return boolean|Net_LDAP_Error TRUE, if we had a match in one of the values, otherwise false. Net_LDAP_Error in case something went wrong
function preg_match($regex, $attr_name, $matches = array ())
// fetch attribute values
$attr = $this->getValue($attr_name, 'all');
// perform preg_match() on all values
foreach ($attr as $thisvalue) {
if (preg_match($regex, $thisvalue, $matches_int)) {
array_push($matches, $matches_int); // store matches in reference
* Is this entry going to be deleted once update() is called?
* Is this entry going to be moved once update() is called?
* Returns always the original DN
* If an entry will be moved but {@link update()} was not called,
* {@link dn()} will return the new DN. This method however, returns
* always the current active DN.
* Returns the attribute changes to be carried out once update() is called
Documentation generated on Mon, 11 Mar 2019 15:22:33 -0400 by phpDocumentor 1.4.4. PEAR Logo Copyright © PHP Group 2004.
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