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authorCraig Andrews <candrews@integralblue.com>2009-11-04 13:39:56 -0500
committerCraig Andrews <candrews@integralblue.com>2009-11-04 13:39:56 -0500
commitc403f7fa442d7f8eacb4e2288429c271450d57d2 (patch)
tree750fc924305db82ff73f202f20b256c989918a19 /extlib
parenta82df5fae8b5d71d4545f27e7aa6cc561160922a (diff)
Added Net_LDAP2 to extlib, and add a skeleton LDAP plugin
Diffstat (limited to 'extlib')
-rw-r--r--extlib/Net/LDAP2.php1791
-rw-r--r--extlib/Net/LDAP2/Entry.php1055
-rw-r--r--extlib/Net/LDAP2/Filter.php514
-rw-r--r--extlib/Net/LDAP2/LDIF.php922
-rw-r--r--extlib/Net/LDAP2/RootDSE.php240
-rw-r--r--extlib/Net/LDAP2/Schema.php516
-rw-r--r--extlib/Net/LDAP2/SchemaCache.interface.php59
-rw-r--r--extlib/Net/LDAP2/Search.php614
-rw-r--r--extlib/Net/LDAP2/SimpleFileSchemaCache.php97
-rw-r--r--extlib/Net/LDAP2/Util.php572
10 files changed, 6380 insertions, 0 deletions
diff --git a/extlib/Net/LDAP2.php b/extlib/Net/LDAP2.php
new file mode 100644
index 000000000..26f5e7560
--- /dev/null
+++ b/extlib/Net/LDAP2.php
@@ -0,0 +1,1791 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2 interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Tarjej Huse <tarjei@bergfald.no>
+* @author Jan Wagner <wagner@netsols.de>
+* @author Del <del@babel.com.au>
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2003-2007 Tarjej Huse, Jan Wagner, Del Elson, Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: LDAP2.php 286788 2009-08-04 06:05:49Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* Package includes.
+*/
+require_once 'PEAR.php';
+require_once 'Net/LDAP2/RootDSE.php';
+require_once 'Net/LDAP2/Schema.php';
+require_once 'Net/LDAP2/Entry.php';
+require_once 'Net/LDAP2/Search.php';
+require_once 'Net/LDAP2/Util.php';
+require_once 'Net/LDAP2/Filter.php';
+require_once 'Net/LDAP2/LDIF.php';
+require_once 'Net/LDAP2/SchemaCache.interface.php';
+require_once 'Net/LDAP2/SimpleFileSchemaCache.php';
+
+/**
+* Error constants for errors that are not LDAP errors.
+*/
+define('NET_LDAP2_ERROR', 1000);
+
+/**
+* Net_LDAP2 Version
+*/
+define('NET_LDAP2_VERSION', '2.0.7');
+
+/**
+* Net_LDAP2 - manipulate LDAP servers the right way!
+*
+* @category Net
+* @package Net_LDAP2
+* @author Tarjej Huse <tarjei@bergfald.no>
+* @author Jan Wagner <wagner@netsols.de>
+* @author Del <del@babel.com.au>
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2003-2007 Tarjej Huse, Jan Wagner, Del Elson, Benedikt Hallinger
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+class Net_LDAP2 extends PEAR
+{
+ /**
+ * Class configuration array
+ *
+ * host = the ldap host to connect to
+ * (may be an array of several hosts to try)
+ * port = the server port
+ * version = ldap version (defaults to v 3)
+ * starttls = when set, ldap_start_tls() is run after connecting.
+ * bindpw = no explanation needed
+ * binddn = the DN to bind as.
+ * basedn = ldap base
+ * options = hash of ldap options to set (opt => val)
+ * filter = default search filter
+ * scope = default search scope
+ *
+ * Newly added in 2.0.0RC4, for auto-reconnect:
+ * auto_reconnect = if set to true then the class will automatically
+ * attempt to reconnect to the LDAP server in certain
+ * failure conditionswhen attempting a search, or other
+ * LDAP operation. Defaults to false. Note that if you
+ * set this to true, calls to search() may block
+ * indefinitely if there is a catastrophic server failure.
+ * min_backoff = minimum reconnection delay period (in seconds).
+ * current_backoff = initial reconnection delay period (in seconds).
+ * max_backoff = maximum reconnection delay period (in seconds).
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_config = array('host' => 'localhost',
+ 'port' => 389,
+ 'version' => 3,
+ 'starttls' => false,
+ 'binddn' => '',
+ 'bindpw' => '',
+ 'basedn' => '',
+ 'options' => array(),
+ 'filter' => '(objectClass=*)',
+ 'scope' => 'sub',
+ 'auto_reconnect' => false,
+ 'min_backoff' => 1,
+ 'current_backoff' => 1,
+ 'max_backoff' => 32);
+
+ /**
+ * List of hosts we try to establish a connection to
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_host_list = array();
+
+ /**
+ * List of hosts that are known to be down.
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_down_host_list = array();
+
+ /**
+ * LDAP resource link.
+ *
+ * @access protected
+ * @var resource
+ */
+ protected $_link = false;
+
+ /**
+ * Net_LDAP2_Schema object
+ *
+ * This gets set and returned by {@link schema()}
+ *
+ * @access protected
+ * @var object Net_LDAP2_Schema
+ */
+ protected $_schema = null;
+
+ /**
+ * Schema cacher function callback
+ *
+ * @see registerSchemaCache()
+ * @var string
+ */
+ protected $_schema_cache = null;
+
+ /**
+ * Cache for attribute encoding checks
+ *
+ * @access protected
+ * @var array Hash with attribute names as key and boolean value
+ * to determine whether they should be utf8 encoded or not.
+ */
+ protected $_schemaAttrs = array();
+
+ /**
+ * Cache for rootDSE objects
+ *
+ * Hash with requested rootDSE attr names as key and rootDSE object as value
+ *
+ * Since the RootDSE object itself may request a rootDSE object,
+ * {@link rootDse()} caches successful requests.
+ * Internally, Net_LDAP2 needs several lookups to this object, so
+ * caching increases performance significally.
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_rootDSE_cache = array();
+
+ /**
+ * Returns the Net_LDAP2 Release version, may be called statically
+ *
+ * @static
+ * @return string Net_LDAP2 version
+ */
+ public static function getVersion()
+ {
+ return NET_LDAP2_VERSION;
+ }
+
+ /**
+ * Configure Net_LDAP2, connect and bind
+ *
+ * Use this method as starting point of using Net_LDAP2
+ * to establish a connection to your LDAP server.
+ *
+ * Static function that returns either an error object or the new Net_LDAP2
+ * object. Something like a factory. Takes a config array with the needed
+ * parameters.
+ *
+ * @param array $config Configuration array
+ *
+ * @access public
+ * @return Net_LDAP2_Error|Net_LDAP2 Net_LDAP2_Error or Net_LDAP2 object
+ */
+ public static function &connect($config = array())
+ {
+ $ldap_check = self::checkLDAPExtension();
+ if (self::iserror($ldap_check)) {
+ return $ldap_check;
+ }
+
+ @$obj = new Net_LDAP2($config);
+
+ // todo? better errorhandling for setConfig()?
+
+ // connect and bind with credentials in config
+ $err = $obj->bind();
+ if (self::isError($err)) {
+ return $err;
+ }
+
+ return $obj;
+ }
+
+ /**
+ * Net_LDAP2 constructor
+ *
+ * Sets the config array
+ *
+ * Please note that the usual way of getting Net_LDAP2 to work is
+ * to call something like:
+ * <code>$ldap = Net_LDAP2::connect($ldap_config);</code>
+ *
+ * @param array $config Configuration array
+ *
+ * @access protected
+ * @return void
+ * @see $_config
+ */
+ public function __construct($config = array())
+ {
+ $this->PEAR('Net_LDAP2_Error');
+ $this->setConfig($config);
+ }
+
+ /**
+ * Sets the internal configuration array
+ *
+ * @param array $config Configuration array
+ *
+ * @access protected
+ * @return void
+ */
+ protected function setConfig($config)
+ {
+ //
+ // Parameter check -- probably should raise an error here if config
+ // is not an array.
+ //
+ if (! is_array($config)) {
+ return;
+ }
+
+ foreach ($config as $k => $v) {
+ if (isset($this->_config[$k])) {
+ $this->_config[$k] = $v;
+ } else {
+ // map old (Net_LDAP2) parms to new ones
+ switch($k) {
+ case "dn":
+ $this->_config["binddn"] = $v;
+ break;
+ case "password":
+ $this->_config["bindpw"] = $v;
+ break;
+ case "tls":
+ $this->_config["starttls"] = $v;
+ break;
+ case "base":
+ $this->_config["basedn"] = $v;
+ break;
+ }
+ }
+ }
+
+ //
+ // Ensure the host list is an array.
+ //
+ if (is_array($this->_config['host'])) {
+ $this->_host_list = $this->_config['host'];
+ } else {
+ if (strlen($this->_config['host']) > 0) {
+ $this->_host_list = array($this->_config['host']);
+ } else {
+ $this->_host_list = array();
+ // ^ this will cause an error in performConnect(),
+ // so the user is notified about the failure
+ }
+ }
+
+ //
+ // Reset the down host list, which seems like a sensible thing to do
+ // if the config is being reset for some reason.
+ //
+ $this->_down_host_list = array();
+ }
+
+ /**
+ * Bind or rebind to the ldap-server
+ *
+ * This function binds with the given dn and password to the server. In case
+ * no connection has been made yet, it will be started and startTLS issued
+ * if appropiate.
+ *
+ * The internal bind configuration is not being updated, so if you call
+ * bind() without parameters, you can rebind with the credentials
+ * provided at first connecting to the server.
+ *
+ * @param string $dn Distinguished name for binding
+ * @param string $password Password for binding
+ *
+ * @access public
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ */
+ public function bind($dn = null, $password = null)
+ {
+ // fetch current bind credentials
+ if (is_null($dn)) {
+ $dn = $this->_config["binddn"];
+ }
+ if (is_null($password)) {
+ $password = $this->_config["bindpw"];
+ }
+
+ // Connect first, if we haven't so far.
+ // This will also bind us to the server.
+ if ($this->_link === false) {
+ // store old credentials so we can revert them later
+ // then overwrite config with new bind credentials
+ $olddn = $this->_config["binddn"];
+ $oldpw = $this->_config["bindpw"];
+
+ // overwrite bind credentials in config
+ // so performConnect() knows about them
+ $this->_config["binddn"] = $dn;
+ $this->_config["bindpw"] = $password;
+
+ // try to connect with provided credentials
+ $msg = $this->performConnect();
+
+ // reset to previous config
+ $this->_config["binddn"] = $olddn;
+ $this->_config["bindpw"] = $oldpw;
+
+ // see if bind worked
+ if (self::isError($msg)) {
+ return $msg;
+ }
+ } else {
+ // do the requested bind as we are
+ // asked to bind manually
+ if (is_null($dn)) {
+ // anonymous bind
+ $msg = @ldap_bind($this->_link);
+ } else {
+ // privileged bind
+ $msg = @ldap_bind($this->_link, $dn, $password);
+ }
+ if (false === $msg) {
+ return PEAR::raiseError("Bind failed: " .
+ @ldap_error($this->_link),
+ @ldap_errno($this->_link));
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Connect to the ldap-server
+ *
+ * This function connects to the LDAP server specified in
+ * the configuration, binds and set up the LDAP protocol as needed.
+ *
+ * @access protected
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ */
+ protected function performConnect()
+ {
+ // Note: Connecting is briefly described in RFC1777.
+ // Basicly it works like this:
+ // 1. set up TCP connection
+ // 2. secure that connection if neccessary
+ // 3a. setLDAPVersion to tell server which version we want to speak
+ // 3b. perform bind
+ // 3c. setLDAPVersion to tell server which version we want to speak
+ // together with a test for supported versions
+ // 4. set additional protocol options
+
+ // Return true if we are already connected.
+ if ($this->_link !== false) {
+ return true;
+ }
+
+ // Connnect to the LDAP server if we are not connected. Note that
+ // with some LDAP clients, ldapperformConnect returns a link value even
+ // if no connection is made. We need to do at least one anonymous
+ // bind to ensure that a connection is actually valid.
+ //
+ // Ref: http://www.php.net/manual/en/function.ldap-connect.php
+
+ // Default error message in case all connection attempts
+ // fail but no message is set
+ $current_error = new PEAR_Error('Unknown connection error');
+
+ // Catch empty $_host_list arrays.
+ if (!is_array($this->_host_list) || count($this->_host_list) == 0) {
+ $current_error = PEAR::raiseError('No Servers configured! Please '.
+ 'pass in an array of servers to Net_LDAP2');
+ return $current_error;
+ }
+
+ // Cycle through the host list.
+ foreach ($this->_host_list as $host) {
+
+ // Ensure we have a valid string for host name
+ if (is_array($host)) {
+ $current_error = PEAR::raiseError('No Servers configured! '.
+ 'Please pass in an one dimensional array of servers to '.
+ 'Net_LDAP2! (multidimensional array detected!)');
+ continue;
+ }
+
+ // Skip this host if it is known to be down.
+ if (in_array($host, $this->_down_host_list)) {
+ continue;
+ }
+
+ // Record the host that we are actually connecting to in case
+ // we need it later.
+ $this->_config['host'] = $host;
+
+ // Attempt a connection.
+ $this->_link = @ldap_connect($host, $this->_config['port']);
+ if (false === $this->_link) {
+ $current_error = PEAR::raiseError('Could not connect to ' .
+ $host . ':' . $this->_config['port']);
+ $this->_down_host_list[] = $host;
+ continue;
+ }
+
+ // If we're supposed to use TLS, do so before we try to bind,
+ // as some strict servers only allow binding via secure connections
+ if ($this->_config["starttls"] === true) {
+ if (self::isError($msg = $this->startTLS())) {
+ $current_error = $msg;
+ $this->_link = false;
+ $this->_down_host_list[] = $host;
+ continue;
+ }
+ }
+
+ // Try to set the configured LDAP version on the connection if LDAP
+ // server needs that before binding (eg OpenLDAP).
+ // This could be necessary since rfc-1777 states that the protocol version
+ // has to be set at the bind request.
+ // We use force here which means that the test in the rootDSE is skipped;
+ // this is neccessary, because some strict LDAP servers only allow to
+ // read the LDAP rootDSE (which tells us the supported protocol versions)
+ // with authenticated clients.
+ // This may fail in which case we try again after binding.
+ // In this case, most probably the bind() or setLDAPVersion()-call
+ // below will also fail, providing error messages.
+ $version_set = false;
+ $ignored_err = $this->setLDAPVersion(0, true);
+ if (!self::isError($ignored_err)) {
+ $version_set = true;
+ }
+
+ // Attempt to bind to the server. If we have credentials configured,
+ // we try to use them, otherwise its an anonymous bind.
+ // As stated by RFC-1777, the bind request should be the first
+ // operation to be performed after the connection is established.
+ // This may give an protocol error if the server does not support
+ // V2 binds and the above call to setLDAPVersion() failed.
+ // In case the above call failed, we try an V2 bind here and set the
+ // version afterwards (with checking to the rootDSE).
+ $msg = $this->bind();
+ if (self::isError($msg)) {
+ // The bind failed, discard link and save error msg.
+ // Then record the host as down and try next one
+ if ($msg->getCode() == 0x02 && !$version_set) {
+ // provide a finer grained error message
+ // if protocol error arieses because of invalid version
+ $msg = new Net_LDAP2_Error($msg->getMessage().
+ " (could not set LDAP protocol version to ".
+ $this->_config['version'].")",
+ $msg->getCode());
+ }
+ $this->_link = false;
+ $current_error = $msg;
+ $this->_down_host_list[] = $host;
+ continue;
+ }
+
+ // Set desired LDAP version if not successfully set before.
+ // Here, a check against the rootDSE is performed, so we get a
+ // error message if the server does not support the version.
+ // The rootDSE entry should tell us which LDAP versions are
+ // supported. However, some strict LDAP servers only allow
+ // bound suers to read the rootDSE.
+ if (!$version_set) {
+ if (self::isError($msg = $this->setLDAPVersion())) {
+ $current_error = $msg;
+ $this->_link = false;
+ $this->_down_host_list[] = $host;
+ continue;
+ }
+ }
+
+ // Set LDAP parameters, now we know we have a valid connection.
+ if (isset($this->_config['options']) &&
+ is_array($this->_config['options']) &&
+ count($this->_config['options'])) {
+ foreach ($this->_config['options'] as $opt => $val) {
+ $err = $this->setOption($opt, $val);
+ if (self::isError($err)) {
+ $current_error = $err;
+ $this->_link = false;
+ $this->_down_host_list[] = $host;
+ continue 2;
+ }
+ }
+ }
+
+ // At this stage we have connected, bound, and set up options,
+ // so we have a known good LDAP server. Time to go home.
+ return true;
+ }
+
+
+ // All connection attempts have failed, return the last error.
+ return $current_error;
+ }
+
+ /**
+ * Reconnect to the ldap-server.
+ *
+ * In case the connection to the LDAP
+ * service has dropped out for some reason, this function will reconnect,
+ * and re-bind if a bind has been attempted in the past. It is probably
+ * most useful when the server list provided to the new() or connect()
+ * function is an array rather than a single host name, because in that
+ * case it will be able to connect to a failover or secondary server in
+ * case the primary server goes down.
+ *
+ * This doesn't return anything, it just tries to re-establish
+ * the current connection. It will sleep for the current backoff
+ * period (seconds) before attempting the connect, and if the
+ * connection fails it will double the backoff period, but not
+ * try again. If you want to ensure a reconnection during a
+ * transient period of server downtime then you need to call this
+ * function in a loop.
+ *
+ * @access protected
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ */
+ protected function performReconnect()
+ {
+
+ // Return true if we are already connected.
+ if ($this->_link !== false) {
+ return true;
+ }
+
+ // Default error message in case all connection attempts
+ // fail but no message is set
+ $current_error = new PEAR_Error('Unknown connection error');
+
+ // Sleep for a backoff period in seconds.
+ sleep($this->_config['current_backoff']);
+
+ // Retry all available connections.
+ $this->_down_host_list = array();
+ $msg = $this->performConnect();
+
+ // Bail out if that fails.
+ if (self::isError($msg)) {
+ $this->_config['current_backoff'] =
+ $this->_config['current_backoff'] * 2;
+ if ($this->_config['current_backoff'] > $this->_config['max_backoff']) {
+ $this->_config['current_backoff'] = $this->_config['max_backoff'];
+ }
+ return $msg;
+ }
+
+ // Now we should be able to safely (re-)bind.
+ $msg = $this->bind();
+ if (self::isError($msg)) {
+ $this->_config['current_backoff'] = $this->_config['current_backoff'] * 2;
+ if ($this->_config['current_backoff'] > $this->_config['max_backoff']) {
+ $this->_config['current_backoff'] = $this->_config['max_backoff'];
+ }
+
+ // _config['host'] should have had the last connected host stored in it
+ // by performConnect(). Since we are unable to bind to that host we can safely
+ // assume that it is down or has some other problem.
+ $this->_down_host_list[] = $this->_config['host'];
+ return $msg;
+ }
+
+ // At this stage we have connected, bound, and set up options,
+ // so we have a known good LDAP server. Time to go home.
+ $this->_config['current_backoff'] = $this->_config['min_backoff'];
+ return true;
+ }
+
+ /**
+ * Starts an encrypted session
+ *
+ * @access public
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ */
+ public function startTLS()
+ {
+ // Test to see if the server supports TLS first.
+ // This is done via testing the extensions offered by the server.
+ // The OID 1.3.6.1.4.1.1466.20037 tells us, if TLS is supported.
+ $rootDSE = $this->rootDse();
+ if (self::isError($rootDSE)) {
+ return $this->raiseError("Unable to fetch rootDSE entry ".
+ "to see if TLS is supoported: ".$rootDSE->getMessage(), $rootDSE->getCode());
+ }
+
+ $supported_extensions = $rootDSE->getValue('supportedExtension');
+ if (self::isError($supported_extensions)) {
+ return $this->raiseError("Unable to fetch rootDSE attribute 'supportedExtension' ".
+ "to see if TLS is supoported: ".$supported_extensions->getMessage(), $supported_extensions->getCode());
+ }
+
+ if (in_array('1.3.6.1.4.1.1466.20037', $supported_extensions)) {
+ if (false === @ldap_start_tls($this->_link)) {
+ return $this->raiseError("TLS not started: " .
+ @ldap_error($this->_link),
+ @ldap_errno($this->_link));
+ }
+ return true;
+ } else {
+ return $this->raiseError("Server reports that it does not support TLS");
+ }
+ }
+
+ /**
+ * alias function of startTLS() for perl-ldap interface
+ *
+ * @return void
+ * @see startTLS()
+ */
+ public function start_tls()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array( &$this, 'startTLS' ), $args);
+ }
+
+ /**
+ * Close LDAP connection.
+ *
+ * Closes the connection. Use this when the session is over.
+ *
+ * @return void
+ */
+ public function done()
+ {
+ $this->_Net_LDAP2();
+ }
+
+ /**
+ * Alias for {@link done()}
+ *
+ * @return void
+ * @see done()
+ */
+ public function disconnect()
+ {
+ $this->done();
+ }
+
+ /**
+ * Destructor
+ *
+ * @access protected
+ */
+ public function _Net_LDAP2()
+ {
+ @ldap_close($this->_link);
+ }
+
+ /**
+ * Add a new entryobject to a directory.
+ *
+ * Use add to add a new Net_LDAP2_Entry object to the directory.
+ * This also links the entry to the connection used for the add,
+ * if it was a fresh entry ({@link Net_LDAP2_Entry::createFresh()})
+ *
+ * @param Net_LDAP2_Entry &$entry Net_LDAP2_Entry
+ *
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ */
+ public function add(&$entry)
+ {
+ if (!$entry instanceof Net_LDAP2_Entry) {
+ return PEAR::raiseError('Parameter to Net_LDAP2::add() must be a Net_LDAP2_Entry object.');
+ }
+
+ // Continue attempting the add operation in a loop until we
+ // get a success, a definitive failure, or the world ends.
+ $foo = 0;
+ while (true) {
+ $link = $this->getLink();
+
+ if ($link === false) {
+ // We do not have a successful connection yet. The call to
+ // getLink() would have kept trying if we wanted one. Go
+ // home now.
+ return PEAR::raiseError("Could not add entry " . $entry->dn() .
+ " no valid LDAP connection could be found.");
+ }
+
+ if (@ldap_add($link, $entry->dn(), $entry->getValues())) {
+ // entry successfully added, we should update its $ldap reference
+ // in case it is not set so far (fresh entry)
+ if (!$entry->getLDAP() instanceof Net_LDAP2) {
+ $entry->setLDAP($this);
+ }
+ // store, that the entry is present inside the directory
+ $entry->markAsNew(false);
+ return true;
+ } else {
+ // We have a failure. What type? We may be able to reconnect
+ // and try again.
+ $error_code = @ldap_errno($link);
+ $error_name = $this->errorMessage($error_code);
+
+ if (($error_name === 'LDAP_OPERATIONS_ERROR') &&
+ ($this->_config['auto_reconnect'])) {
+
+ // The server has become disconnected before trying the
+ // operation. We should try again, possibly with a different
+ // server.
+ $this->_link = false;
+ $this->performReconnect();
+ } else {
+ // Errors other than the above catched are just passed
+ // back to the user so he may react upon them.
+ return PEAR::raiseError("Could not add entry " . $entry->dn() . " " .
+ $error_name,
+ $error_code);
+ }
+ }
+ }
+ }
+
+ /**
+ * Delete an entry from the directory
+ *
+ * The object may either be a string representing the dn or a Net_LDAP2_Entry
+ * object. When the boolean paramter recursive is set, all subentries of the
+ * entry will be deleted as well.
+ *
+ * @param string|Net_LDAP2_Entry $dn DN-string or Net_LDAP2_Entry
+ * @param boolean $recursive Should we delete all children recursive as well?
+ *
+ * @access public
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ */
+ public function delete($dn, $recursive = false)
+ {
+ if ($dn instanceof Net_LDAP2_Entry) {
+ $dn = $dn->dn();
+ }
+ if (false === is_string($dn)) {
+ return PEAR::raiseError("Parameter is not a string nor an entry object!");
+ }
+ // Recursive delete searches for children and calls delete for them
+ if ($recursive) {
+ $result = @ldap_list($this->_link, $dn, '(objectClass=*)', array(null), 0, 0);
+ if (@ldap_count_entries($this->_link, $result)) {
+ $subentry = @ldap_first_entry($this->_link, $result);
+ $this->delete(@ldap_get_dn($this->_link, $subentry), true);
+ while ($subentry = @ldap_next_entry($this->_link, $subentry)) {
+ $this->delete(@ldap_get_dn($this->_link, $subentry), true);
+ }
+ }
+ }
+
+ // Continue attempting the delete operation in a loop until we
+ // get a success, a definitive failure, or the world ends.
+ while (true) {
+ $link = $this->getLink();
+
+ if ($link === false) {
+ // We do not have a successful connection yet. The call to
+ // getLink() would have kept trying if we wanted one. Go
+ // home now.
+ return PEAR::raiseError("Could not add entry " . $dn .
+ " no valid LDAP connection could be found.");
+ }
+
+ if (@ldap_delete($link, $dn)) {
+ // entry successfully deleted.
+ return true;
+ } else {
+ // We have a failure. What type?
+ // We may be able to reconnect and try again.
+ $error_code = @ldap_errno($link);
+ $error_name = $this->errorMessage($error_code);
+
+ if (($this->errorMessage($error_code) === 'LDAP_OPERATIONS_ERROR') &&
+ ($this->_config['auto_reconnect'])) {
+ // The server has become disconnected before trying the
+ // operation. We should try again, possibly with a
+ // different server.
+ $this->_link = false;
+ $this->performReconnect();
+
+ } elseif ($error_code == 66) {
+ // Subentries present, server refused to delete.
+ // Deleting subentries is the clients responsibility, but
+ // since the user may not know of the subentries, we do not
+ // force that here but instead notify the developer so he
+ // may take actions himself.
+ return PEAR::raiseError("Could not delete entry $dn because of subentries. Use the recursive parameter to delete them.");
+
+ } else {
+ // Errors other than the above catched are just passed
+ // back to the user so he may react upon them.
+ return PEAR::raiseError("Could not delete entry " . $dn . " " .
+ $error_name,
+ $error_code);
+ }
+ }
+ }
+ }
+
+ /**
+ * Modify an ldapentry directly on the server
+ *
+ * This one takes the DN or a Net_LDAP2_Entry object and an array of actions.
+ * This array should be something like this:
+ *
+ * array('add' => array('attribute1' => array('val1', 'val2'),
+ * 'attribute2' => array('val1')),
+ * 'delete' => array('attribute1'),
+ * 'replace' => array('attribute1' => array('val1')),
+ * 'changes' => array('add' => ...,
+ * 'replace' => ...,
+ * 'delete' => array('attribute1', 'attribute2' => array('val1')))
+ *
+ * The changes array is there so the order of operations can be influenced
+ * (the operations are done in order of appearance).
+ * The order of execution is as following:
+ * 1. adds from 'add' array
+ * 2. deletes from 'delete' array
+ * 3. replaces from 'replace' array
+ * 4. changes (add, replace, delete) in order of appearance
+ * All subarrays (add, replace, delete, changes) may be given at the same time.
+ *
+ * The function calls the corresponding functions of an Net_LDAP2_Entry
+ * object. A detailed description of array structures can be found there.
+ *
+ * Unlike the modification methods provided by the Net_LDAP2_Entry object,
+ * this method will instantly carry out an update() after each operation,
+ * thus modifying "directly" on the server.
+ *
+ * @param string|Net_LDAP2_Entry $entry DN-string or Net_LDAP2_Entry
+ * @param array $parms Array of changes
+ *
+ * @access public
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ */
+ public function modify($entry, $parms = array())
+ {
+ if (is_string($entry)) {
+ $entry = $this->getEntry($entry);
+ if (self::isError($entry)) {
+ return $entry;
+ }
+ }
+ if (!$entry instanceof Net_LDAP2_Entry) {
+ return PEAR::raiseError("Parameter is not a string nor an entry object!");
+ }
+
+ // Perform changes mentioned separately
+ foreach (array('add', 'delete', 'replace') as $action) {
+ if (isset($parms[$action])) {
+ $msg = $entry->$action($parms[$action]);
+ if (self::isError($msg)) {
+ return $msg;
+ }
+ $entry->setLDAP($this);
+
+ // Because the @ldap functions are called inside Net_LDAP2_Entry::update(),
+ // we have to trap the error codes issued from that if we want to support
+ // reconnection.
+ while (true) {
+ $msg = $entry->update();
+
+ if (self::isError($msg)) {
+ // We have a failure. What type? We may be able to reconnect
+ // and try again.
+ $error_code = $msg->getCode();
+ $error_name = $this->errorMessage($error_code);
+
+ if (($this->errorMessage($error_code) === 'LDAP_OPERATIONS_ERROR') &&
+ ($this->_config['auto_reconnect'])) {
+
+ // The server has become disconnected before trying the
+ // operation. We should try again, possibly with a different
+ // server.
+ $this->_link = false;
+ $this->performReconnect();
+
+ } else {
+
+ // Errors other than the above catched are just passed
+ // back to the user so he may react upon them.
+ return PEAR::raiseError("Could not modify entry: ".$msg->getMessage());
+ }
+ } else {
+ // modification succeedet, evaluate next change
+ break;
+ }
+ }
+ }
+ }
+
+ // perform combined changes in 'changes' array
+ if (isset($parms['changes']) && is_array($parms['changes'])) {
+ foreach ($parms['changes'] as $action => $value) {
+
+ // Because the @ldap functions are called inside Net_LDAP2_Entry::update,
+ // we have to trap the error codes issued from that if we want to support
+ // reconnection.
+ while (true) {
+ $msg = $this->modify($entry, array($action => $value));
+
+ if (self::isError($msg)) {
+ // We have a failure. What type? We may be able to reconnect
+ // and try again.
+ $error_code = $msg->getCode();
+ $error_name = $this->errorMessage($error_code);
+
+ if (($this->errorMessage($error_code) === 'LDAP_OPERATIONS_ERROR') &&
+ ($this->_config['auto_reconnect'])) {
+
+ // The server has become disconnected before trying the
+ // operation. We should try again, possibly with a different
+ // server.
+ $this->_link = false;
+ $this->performReconnect();
+
+ } else {
+ // Errors other than the above catched are just passed
+ // back to the user so he may react upon them.
+ return $msg;
+ }
+ } else {
+ // modification succeedet, evaluate next change
+ break;
+ }
+ }
+ }
+ }
+
+ return true;
+ }
+
+ /**
+ * Run a ldap search query
+ *
+ * Search is used to query the ldap-database.
+ * $base and $filter may be ommitted. The one from config will
+ * then be used. $base is either a DN-string or an Net_LDAP2_Entry
+ * object in which case its DN willb e used.
+ *
+ * Params may contain:
+ *
+ * scope: The scope which will be used for searching
+ * base - Just one entry
+ * sub - The whole tree
+ * one - Immediately below $base
+ * sizelimit: Limit the number of entries returned (default: 0 = unlimited),
+ * timelimit: Limit the time spent for searching (default: 0 = unlimited),
+ * attrsonly: If true, the search will only return the attribute names,
+ * attributes: Array of attribute names, which the entry should contain.
+ * It is good practice to limit this to just the ones you need.
+ * [NOT IMPLEMENTED]
+ * deref: By default aliases are dereferenced to locate the base object for the search, but not when
+ * searching subordinates of the base object. This may be changed by specifying one of the
+ * following values:
+ *
+ * never - Do not dereference aliases in searching or in locating the base object of the search.
+ * search - Dereference aliases in subordinates of the base object in searching, but not in
+ * locating the base object of the search.
+ * find
+ * always
+ *
+ * Please note, that you cannot override server side limitations to sizelimit
+ * and timelimit: You can always only lower a given limit.
+ *
+ * @param string|Net_LDAP2_Entry $base LDAP searchbase
+ * @param string|Net_LDAP2_Filter $filter LDAP search filter or a Net_LDAP2_Filter object
+ * @param array $params Array of options
+ *
+ * @access public
+ * @return Net_LDAP2_Search|Net_LDAP2_Error Net_LDAP2_Search object or Net_LDAP2_Error object
+ * @todo implement search controls (sorting etc)
+ */
+ public function search($base = null, $filter = null, $params = array())
+ {
+ if (is_null($base)) {
+ $base = $this->_config['basedn'];
+ }
+ if ($base instanceof Net_LDAP2_Entry) {
+ $base = $base->dn(); // fetch DN of entry, making searchbase relative to the entry
+ }
+ if (is_null($filter)) {
+ $filter = $this->_config['filter'];
+ }
+ if ($filter instanceof Net_LDAP2_Filter) {
+ $filter = $filter->asString(); // convert Net_LDAP2_Filter to string representation
+ }
+ if (PEAR::isError($filter)) {
+ return $filter;
+ }
+ if (PEAR::isError($base)) {
+ return $base;
+ }
+
+ /* setting searchparameters */
+ (isset($params['sizelimit'])) ? $sizelimit = $params['sizelimit'] : $sizelimit = 0;
+ (isset($params['timelimit'])) ? $timelimit = $params['timelimit'] : $timelimit = 0;
+ (isset($params['attrsonly'])) ? $attrsonly = $params['attrsonly'] : $attrsonly = 0;
+ (isset($params['attributes'])) ? $attributes = $params['attributes'] : $attributes = array();
+
+ // Ensure $attributes to be an array in case only one
+ // attribute name was given as string
+ if (!is_array($attributes)) {
+ $attributes = array($attributes);
+ }
+
+ // reorganize the $attributes array index keys
+ // sometimes there are problems with not consecutive indexes
+ $attributes = array_values($attributes);
+
+ // scoping makes searches faster!
+ $scope = (isset($params['scope']) ? $params['scope'] : $this->_config['scope']);
+
+ switch ($scope) {
+ case 'one':
+ $search_function = 'ldap_list';
+ break;
+ case 'base':
+ $search_function = 'ldap_read';
+ break;
+ default:
+ $search_function = 'ldap_search';
+ }
+
+ // Continue attempting the search operation until we get a success
+ // or a definitive failure.
+ while (true) {
+ $link = $this->getLink();
+ $search = @call_user_func($search_function,
+ $link,
+ $base,
+ $filter,
+ $attributes,
+ $attrsonly,
+ $sizelimit,
+ $timelimit);
+
+ if ($err = @ldap_errno($link)) {
+ if ($err == 32) {
+ // Errorcode 32 = no such object, i.e. a nullresult.
+ return $obj = new Net_LDAP2_Search ($search, $this, $attributes);
+ } elseif ($err == 4) {
+ // Errorcode 4 = sizelimit exeeded.
+ return $obj = new Net_LDAP2_Search ($search, $this, $attributes);
+ } elseif ($err == 87) {
+ // bad search filter
+ return $this->raiseError($this->errorMessage($err) . "($filter)", $err);
+ } elseif (($err == 1) && ($this->_config['auto_reconnect'])) {
+ // Errorcode 1 = LDAP_OPERATIONS_ERROR but we can try a reconnect.
+ $this->_link = false;
+ $this->performReconnect();
+ } else {
+ $msg = "\nParameters:\nBase: $base\nFilter: $filter\nScope: $scope";
+ return $this->raiseError($this->errorMessage($err) . $msg, $err);
+ }
+ } else {
+ return $obj = new Net_LDAP2_Search($search, $this, $attributes);
+ }
+ }
+ }
+
+ /**
+ * Set an LDAP option
+ *
+ * @param string $option Option to set
+ * @param mixed $value Value to set Option to
+ *
+ * @access public
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ */
+ public function setOption($option, $value)
+ {
+ if ($this->_link) {
+ if (defined($option)) {
+ if (@ldap_set_option($this->_link, constant($option), $value)) {
+ return true;
+ } else {
+ $err = @ldap_errno($this->_link);
+ if ($err) {
+ $msg = @ldap_err2str($err);
+ } else {
+ $err = NET_LDAP2_ERROR;
+ $msg = $this->errorMessage($err);
+ }
+ return $this->raiseError($msg, $err);
+ }
+ } else {
+ return $this->raiseError("Unkown Option requested");
+ }
+ } else {
+ return $this->raiseError("Could not set LDAP option: No LDAP connection");
+ }
+ }
+
+ /**
+ * Get an LDAP option value
+ *
+ * @param string $option Option to get
+ *
+ * @access public
+ * @return Net_LDAP2_Error|string Net_LDAP2_Error or option value
+ */
+ public function getOption($option)
+ {
+ if ($this->_link) {
+ if (defined($option)) {
+ if (@ldap_get_option($this->_link, constant($option), $value)) {
+ return $value;
+ } else {
+ $err = @ldap_errno($this->_link);
+ if ($err) {
+ $msg = @ldap_err2str($err);
+ } else {
+ $err = NET_LDAP2_ERROR;
+ $msg = $this->errorMessage($err);
+ }
+ return $this->raiseError($msg, $err);
+ }
+ } else {
+ $this->raiseError("Unkown Option requested");
+ }
+ } else {
+ $this->raiseError("No LDAP connection");
+ }
+ }
+
+ /**
+ * Get the LDAP_PROTOCOL_VERSION that is used on the connection.
+ *
+ * A lot of ldap functionality is defined by what protocol version the ldap server speaks.
+ * This might be 2 or 3.
+ *
+ * @return int
+ */
+ public function getLDAPVersion()
+ {
+ if ($this->_link) {
+ $version = $this->getOption("LDAP_OPT_PROTOCOL_VERSION");
+ } else {
+ $version = $this->_config['version'];
+ }
+ return $version;
+ }
+
+ /**
+ * Set the LDAP_PROTOCOL_VERSION that is used on the connection.
+ *
+ * @param int $version LDAP-version that should be used
+ * @param boolean $force If set to true, the check against the rootDSE will be skipped
+ *
+ * @return Net_LDAP2_Error|true Net_LDAP2_Error object or true
+ * @todo Checking via the rootDSE takes much time - why? fetching and instanciation is quick!
+ */
+ public function setLDAPVersion($version = 0, $force = false)
+ {
+ if (!$version) {
+ $version = $this->_config['version'];
+ }
+
+ //
+ // Check to see if the server supports this version first.
+ //
+ // Todo: Why is this so horribly slow?
+ // $this->rootDse() is very fast, as well as Net_LDAP2_RootDSE::fetch()
+ // seems like a problem at copiyng the object inside PHP??
+ // Additionally, this is not always reproducable...
+ //
+ if (!$force) {
+ $rootDSE = $this->rootDse();
+ if ($rootDSE instanceof Net_LDAP2_Error) {
+ return $rootDSE;
+ } else {
+ $supported_versions = $rootDSE->getValue('supportedLDAPVersion');
+ if (is_string($supported_versions)) {
+ $supported_versions = array($supported_versions);
+ }
+ $check_ok = in_array($version, $supported_versions);
+ }
+ }
+
+ if ($force || $check_ok) {
+ return $this->setOption("LDAP_OPT_PROTOCOL_VERSION", $version);
+ } else {
+ return $this->raiseError("LDAP Server does not support protocol version " . $version);
+ }
+ }
+
+
+ /**
+ * Tells if a DN does exist in the directory
+ *
+ * @param string|Net_LDAP2_Entry $dn The DN of the object to test
+ *
+ * @return boolean|Net_LDAP2_Error
+ */
+ public function dnExists($dn)
+ {
+ if (PEAR::isError($dn)) {
+ return $dn;
+ }
+ if ($dn instanceof Net_LDAP2_Entry) {
+ $dn = $dn->dn();
+ }
+ if (false === is_string($dn)) {
+ return PEAR::raiseError('Parameter $dn is not a string nor an entry object!');
+ }
+
+ // make dn relative to parent
+ $base = Net_LDAP2_Util::ldap_explode_dn($dn, array('casefold' => 'none', 'reverse' => false, 'onlyvalues' => false));
+ if (self::isError($base)) {
+ return $base;
+ }
+ $entry_rdn = array_shift($base);
+ if (is_array($entry_rdn)) {
+ // maybe the dn consist of a multivalued RDN, we must build the dn in this case
+ // because the $entry_rdn is an array!
+ $filter_dn = Net_LDAP2_Util::canonical_dn($entry_rdn);
+ }
+ $base = Net_LDAP2_Util::canonical_dn($base);
+
+ $result = @ldap_list($this->_link, $base, $entry_rdn, array(), 1, 1);
+ if (@ldap_count_entries($this->_link, $result)) {
+ return true;
+ }
+ if (ldap_errno($this->_link) == 32) {
+ return false;
+ }
+ if (ldap_errno($this->_link) != 0) {
+ return PEAR::raiseError(ldap_error($this->_link), ldap_errno($this->_link));
+ }
+ return false;
+ }
+
+
+ /**
+ * Get a specific entry based on the DN
+ *
+ * @param string $dn DN of the entry that should be fetched
+ * @param array $attr Array of Attributes to select. If ommitted, all attributes are fetched.
+ *
+ * @return Net_LDAP2_Entry|Net_LDAP2_Error Reference to a Net_LDAP2_Entry object or Net_LDAP2_Error object
+ * @todo Maybe check against the shema should be done to be sure the attribute type exists
+ */
+ public function &getEntry($dn, $attr = array())
+ {
+ if (!is_array($attr)) {
+ $attr = array($attr);
+ }
+ $result = $this->search($dn, '(objectClass=*)',
+ array('scope' => 'base', 'attributes' => $attr));
+ if (self::isError($result)) {
+ return $result;
+ } elseif ($result->count() == 0) {
+ return PEAR::raiseError('Could not fetch entry '.$dn.': no entry found');
+ }
+ $entry = $result->shiftEntry();
+ if (false == $entry) {
+ return PEAR::raiseError('Could not fetch entry (error retrieving entry from search result)');
+ }
+ return $entry;
+ }
+
+ /**
+ * Rename or move an entry
+ *
+ * This method will instantly carry out an update() after the move,
+ * so the entry is moved instantly.
+ * You can pass an optional Net_LDAP2 object. In this case, a cross directory
+ * move will be performed which deletes the entry in the source (THIS) directory
+ * and adds it in the directory $target_ldap.
+ * A cross directory move will switch the Entrys internal LDAP reference so
+ * updates to the entry will go to the new directory.
+ *
+ * Note that if you want to do a cross directory move, you need to
+ * pass an Net_LDAP2_Entry object, otherwise the attributes will be empty.
+ *
+ * @param string|Net_LDAP2_Entry $entry Entry DN or Entry object
+ * @param string $newdn New location
+ * @param Net_LDAP2 $target_ldap (optional) Target directory for cross server move; should be passed via reference
+ *
+ * @return Net_LDAP2_Error|true
+ */
+ public function move($entry, $newdn, $target_ldap = null)
+ {
+ if (is_string($entry)) {
+ $entry_o = $this->getEntry($entry);
+ } else {
+ $entry_o =& $entry;
+ }
+ if (!$entry_o instanceof Net_LDAP2_Entry) {
+ return PEAR::raiseError('Parameter $entry is expected to be a Net_LDAP2_Entry object! (If DN was passed, conversion failed)');
+ }
+ if (null !== $target_ldap && !$target_ldap instanceof Net_LDAP2) {
+ return PEAR::raiseError('Parameter $target_ldap is expected to be a Net_LDAP2 object!');
+ }
+
+ if ($target_ldap && $target_ldap !== $this) {
+ // cross directory move
+ if (is_string($entry)) {
+ return PEAR::raiseError('Unable to perform cross directory move: operation requires a Net_LDAP2_Entry object');
+ }
+ if ($target_ldap->dnExists($newdn)) {
+ return PEAR::raiseError('Unable to perform cross directory move: entry does exist in target directory');
+ }
+ $entry_o->dn($newdn);
+ $res = $target_ldap->add($entry_o);
+ if (self::isError($res)) {
+ return PEAR::raiseError('Unable to perform cross directory move: '.$res->getMessage().' in target directory');
+ }
+ $res = $this->delete($entry_o->currentDN());
+ if (self::isError($res)) {
+ $res2 = $target_ldap->delete($entry_o); // undo add
+ if (self::isError($res2)) {
+ $add_error_string = 'Additionally, the deletion (undo add) of $entry in target directory failed.';
+ }
+ return PEAR::raiseError('Unable to perform cross directory move: '.$res->getMessage().' in source directory. '.$add_error_string);
+ }
+ $entry_o->setLDAP($target_ldap);
+ return true;
+ } else {
+ // local move
+ $entry_o->dn($newdn);
+ $entry_o->setLDAP($this);
+ return $entry_o->update();
+ }
+ }
+
+ /**
+ * Copy an entry to a new location
+ *
+ * The entry will be immediately copied.
+ * Please note that only attributes you have
+ * selected will be copied.
+ *
+ * @param Net_LDAP2_Entry &$entry Entry object
+ * @param string $newdn New FQF-DN of the entry
+ *
+ * @return Net_LDAP2_Error|Net_LDAP2_Entry Error Message or reference to the copied entry
+ */
+ public function &copy(&$entry, $newdn)
+ {
+ if (!$entry instanceof Net_LDAP2_Entry) {
+ return PEAR::raiseError('Parameter $entry is expected to be a Net_LDAP2_Entry object!');
+ }
+
+ $newentry = Net_LDAP2_Entry::createFresh($newdn, $entry->getValues());
+ $result = $this->add($newentry);
+
+ if ($result instanceof Net_LDAP2_Error) {
+ return $result;
+ } else {
+ return $newentry;
+ }
+ }
+
+
+ /**
+ * Returns the string for an ldap errorcode.
+ *
+ * Made to be able to make better errorhandling
+ * Function based on DB::errorMessage()
+ * Tip: The best description of the errorcodes is found here:
+ * http://www.directory-info.com/LDAP2/LDAPErrorCodes.html
+ *
+ * @param int $errorcode Error code
+ *
+ * @return string The errorstring for the error.
+ */
+ public function errorMessage($errorcode)
+ {
+ $errorMessages = array(
+ 0x00 => "LDAP_SUCCESS",
+ 0x01 => "LDAP_OPERATIONS_ERROR",
+ 0x02 => "LDAP_PROTOCOL_ERROR",
+ 0x03 => "LDAP_TIMELIMIT_EXCEEDED",
+ 0x04 => "LDAP_SIZELIMIT_EXCEEDED",
+ 0x05 => "LDAP_COMPARE_FALSE",
+ 0x06 => "LDAP_COMPARE_TRUE",
+ 0x07 => "LDAP_AUTH_METHOD_NOT_SUPPORTED",
+ 0x08 => "LDAP_STRONG_AUTH_REQUIRED",
+ 0x09 => "LDAP_PARTIAL_RESULTS",
+ 0x0a => "LDAP_REFERRAL",
+ 0x0b => "LDAP_ADMINLIMIT_EXCEEDED",
+ 0x0c => "LDAP_UNAVAILABLE_CRITICAL_EXTENSION",
+ 0x0d => "LDAP_CONFIDENTIALITY_REQUIRED",
+ 0x0e => "LDAP_SASL_BIND_INPROGRESS",
+ 0x10 => "LDAP_NO_SUCH_ATTRIBUTE",
+ 0x11 => "LDAP_UNDEFINED_TYPE",
+ 0x12 => "LDAP_INAPPROPRIATE_MATCHING",
+ 0x13 => "LDAP_CONSTRAINT_VIOLATION",
+ 0x14 => "LDAP_TYPE_OR_VALUE_EXISTS",
+ 0x15 => "LDAP_INVALID_SYNTAX",
+ 0x20 => "LDAP_NO_SUCH_OBJECT",
+ 0x21 => "LDAP_ALIAS_PROBLEM",
+ 0x22 => "LDAP_INVALID_DN_SYNTAX",
+ 0x23 => "LDAP_IS_LEAF",
+ 0x24 => "LDAP_ALIAS_DEREF_PROBLEM",
+ 0x30 => "LDAP_INAPPROPRIATE_AUTH",
+ 0x31 => "LDAP_INVALID_CREDENTIALS",
+ 0x32 => "LDAP_INSUFFICIENT_ACCESS",
+ 0x33 => "LDAP_BUSY",
+ 0x34 => "LDAP_UNAVAILABLE",
+ 0x35 => "LDAP_UNWILLING_TO_PERFORM",
+ 0x36 => "LDAP_LOOP_DETECT",
+ 0x3C => "LDAP_SORT_CONTROL_MISSING",
+ 0x3D => "LDAP_INDEX_RANGE_ERROR",
+ 0x40 => "LDAP_NAMING_VIOLATION",
+ 0x41 => "LDAP_OBJECT_CLASS_VIOLATION",
+ 0x42 => "LDAP_NOT_ALLOWED_ON_NONLEAF",
+ 0x43 => "LDAP_NOT_ALLOWED_ON_RDN",
+ 0x44 => "LDAP_ALREADY_EXISTS",
+ 0x45 => "LDAP_NO_OBJECT_CLASS_MODS",
+ 0x46 => "LDAP_RESULTS_TOO_LARGE",
+ 0x47 => "LDAP_AFFECTS_MULTIPLE_DSAS",
+ 0x50 => "LDAP_OTHER",
+ 0x51 => "LDAP_SERVER_DOWN",
+ 0x52 => "LDAP_LOCAL_ERROR",
+ 0x53 => "LDAP_ENCODING_ERROR",
+ 0x54 => "LDAP_DECODING_ERROR",
+ 0x55 => "LDAP_TIMEOUT",
+ 0x56 => "LDAP_AUTH_UNKNOWN",
+ 0x57 => "LDAP_FILTER_ERROR",
+ 0x58 => "LDAP_USER_CANCELLED",
+ 0x59 => "LDAP_PARAM_ERROR",
+ 0x5a => "LDAP_NO_MEMORY",
+ 0x5b => "LDAP_CONNECT_ERROR",
+ 0x5c => "LDAP_NOT_SUPPORTED",
+ 0x5d => "LDAP_CONTROL_NOT_FOUND",
+ 0x5e => "LDAP_NO_RESULTS_RETURNED",
+ 0x5f => "LDAP_MORE_RESULTS_TO_RETURN",
+ 0x60 => "LDAP_CLIENT_LOOP",
+ 0x61 => "LDAP_REFERRAL_LIMIT_EXCEEDED",
+ 1000 => "Unknown Net_LDAP2 Error"
+ );
+
+ return isset($errorMessages[$errorcode]) ?
+ $errorMessages[$errorcode] :
+ $errorMessages[NET_LDAP2_ERROR] . ' (' . $errorcode . ')';
+ }
+
+ /**
+ * Gets a rootDSE object
+ *
+ * This either fetches a fresh rootDSE object or returns it from
+ * the internal cache for performance reasons, if possible.
+ *
+ * @param array $attrs Array of attributes to search for
+ *
+ * @access public
+ * @return Net_LDAP2_Error|Net_LDAP2_RootDSE Net_LDAP2_Error or Net_LDAP2_RootDSE object
+ */
+ public function &rootDse($attrs = null)
+ {
+ if ($attrs !== null && !is_array($attrs)) {
+ return PEAR::raiseError('Parameter $attr is expected to be an array!');
+ }
+
+ $attrs_signature = serialize($attrs);
+
+ // see if we need to fetch a fresh object, or if we already
+ // requested this object with the same attributes
+ if (true || !array_key_exists($attrs_signature, $this->_rootDSE_cache)) {
+ $rootdse =& Net_LDAP2_RootDSE::fetch($this, $attrs);
+ if ($rootdse instanceof Net_LDAP2_Error) {
+ return $rootdse;
+ }
+
+ // search was ok, store rootDSE in cache
+ $this->_rootDSE_cache[$attrs_signature] = $rootdse;
+ }
+ return $this->_rootDSE_cache[$attrs_signature];
+ }
+
+ /**
+ * Alias function of rootDse() for perl-ldap interface
+ *
+ * @access public
+ * @see rootDse()
+ * @return Net_LDAP2_Error|Net_LDAP2_RootDSE
+ */
+ public function &root_dse()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array(&$this, 'rootDse'), $args);
+ }
+
+ /**
+ * Get a schema object
+ *
+ * @param string $dn (optional) Subschema entry dn
+ *
+ * @access public
+ * @return Net_LDAP2_Schema|Net_LDAP2_Error Net_LDAP2_Schema or Net_LDAP2_Error object
+ */
+ public function &schema($dn = null)
+ {
+ // Schema caching by Knut-Olav Hoven
+ // If a schema caching object is registered, we use that to fetch
+ // a schema object.
+ // See registerSchemaCache() for more info on this.
+ if ($this->_schema === null) {
+ if ($this->_schema_cache) {
+ $cached_schema = $this->_schema_cache->loadSchema();
+ if ($cached_schema instanceof Net_LDAP2_Error) {
+ return $cached_schema; // route error to client
+ } else {
+ if ($cached_schema instanceof Net_LDAP2_Schema) {
+ $this->_schema = $cached_schema;
+ }
+ }
+ }
+ }
+
+ // Fetch schema, if not tried before and no cached version available.
+ // If we are already fetching the schema, we will skip fetching.
+ if ($this->_schema === null) {
+ // store a temporary error message so subsequent calls to schema() can
+ // detect, that we are fetching the schema already.
+ // Otherwise we will get an infinite loop at Net_LDAP2_Schema::fetch()
+ $this->_schema = new Net_LDAP2_Error('Schema not initialized');
+ $this->_schema = Net_LDAP2_Schema::fetch($this, $dn);
+
+ // If schema caching is active, advise the cache to store the schema
+ if ($this->_schema_cache) {
+ $caching_result = $this->_schema_cache->storeSchema($this->_schema);
+ if ($caching_result instanceof Net_LDAP2_Error) {
+ return $caching_result; // route error to client
+ }
+ }
+ }
+ return $this->_schema;
+ }
+
+ /**
+ * Enable/disable persistent schema caching
+ *
+ * Sometimes it might be useful to allow your scripts to cache
+ * the schema information on disk, so the schema is not fetched
+ * every time the script runs which could make your scripts run
+ * faster.
+ *
+ * This method allows you to register a custom object that
+ * implements your schema cache. Please see the SchemaCache interface
+ * (SchemaCache.interface.php) for informations on how to implement this.
+ * To unregister the cache, pass null as $cache parameter.
+ *
+ * For ease of use, Net_LDAP2 provides a simple file based cache
+ * which is used in the example below. You may use this, for example,
+ * to store the schema in a linux tmpfs which results in the schema
+ * beeing cached inside the RAM which allows nearly instant access.
+ * <code>
+ * // Create the simple file cache object that comes along with Net_LDAP2
+ * $mySchemaCache_cfg = array(
+ * 'path' => '/tmp/Net_LDAP2_Schema.cache',
+ * 'max_age' => 86400 // max age is 24 hours (in seconds)
+ * );
+ * $mySchemaCache = new Net_LDAP2_SimpleFileSchemaCache($mySchemaCache_cfg);
+ * $ldap = new Net_LDAP2::connect(...);
+ * $ldap->registerSchemaCache($mySchemaCache); // enable caching
+ * // now each call to $ldap->schema() will get the schema from disk!
+ * </code>
+ *
+ * @param Net_LDAP2_SchemaCache|null $cache Object implementing the Net_LDAP2_SchemaCache interface
+ *
+ * @return true|Net_LDAP2_Error
+ */
+ public function registerSchemaCache($cache) {
+ if (is_null($cache)
+ || (is_object($cache) && in_array('Net_LDAP2_SchemaCache', class_implements($cache))) ) {
+ $this->_schema_cache = $cache;
+ return true;
+ } else {
+ return new Net_LDAP2_Error('Custom schema caching object is either no '.
+ 'valid object or does not implement the Net_LDAP2_SchemaCache interface!');
+ }
+ }
+
+
+ /**
+ * Checks if phps ldap-extension is loaded
+ *
+ * If it is not loaded, it tries to load it manually using PHPs dl().
+ * It knows both windows-dll and *nix-so.
+ *
+ * @static
+ * @return Net_LDAP2_Error|true
+ */
+ public static function checkLDAPExtension()
+ {
+ if (!extension_loaded('ldap') && !@dl('ldap.' . PHP_SHLIB_SUFFIX)) {
+ return new Net_LDAP2_Error("It seems that you do not have the ldap-extension installed. Please install it before using the Net_LDAP2 package.");
+ } else {
+ return true;
+ }
+ }
+
+ /**
+ * Encodes given attributes to UTF8 if needed by schema
+ *
+ * This function takes attributes in an array and then checks against the schema if they need
+ * UTF8 encoding. If that is so, they will be encoded. An encoded array will be returned and
+ * can be used for adding or modifying.
+ *
+ * $attributes is expected to be an array with keys describing
+ * the attribute names and the values as the value of this attribute:
+ * <code>$attributes = array('cn' => 'foo', 'attr2' => array('mv1', 'mv2'));</code>
+ *
+ * @param array $attributes Array of attributes
+ *
+ * @access public
+ * @return array|Net_LDAP2_Error Array of UTF8 encoded attributes or Error
+ */
+ public function utf8Encode($attributes)
+ {
+ return $this->utf8($attributes, 'utf8_encode');
+ }
+
+ /**
+ * Decodes the given attribute values if needed by schema
+ *
+ * $attributes is expected to be an array with keys describing
+ * the attribute names and the values as the value of this attribute:
+ * <code>$attributes = array('cn' => 'foo', 'attr2' => array('mv1', 'mv2'));</code>
+ *
+ * @param array $attributes Array of attributes
+ *
+ * @access public
+ * @see utf8Encode()
+ * @return array|Net_LDAP2_Error Array with decoded attribute values or Error
+ */
+ public function utf8Decode($attributes)
+ {
+ return $this->utf8($attributes, 'utf8_decode');
+ }
+
+ /**
+ * Encodes or decodes attribute values if needed
+ *
+ * @param array $attributes Array of attributes
+ * @param array $function Function to apply to attribute values
+ *
+ * @access protected
+ * @return array|Net_LDAP2_Error Array of attributes with function applied to values or Error
+ */
+ protected function utf8($attributes, $function)
+ {
+ if (!is_array($attributes) || array_key_exists(0, $attributes)) {
+ return PEAR::raiseError('Parameter $attributes is expected to be an associative array');
+ }
+
+ if (!$this->_schema) {
+ $this->_schema = $this->schema();
+ }
+
+ if (!$this->_link || self::isError($this->_schema) || !function_exists($function)) {
+ return $attributes;
+ }
+
+ if (is_array($attributes) && count($attributes) > 0) {
+
+ foreach ($attributes as $k => $v) {
+
+ if (!isset($this->_schemaAttrs[$k])) {
+
+ $attr = $this->_schema->get('attribute', $k);
+ if (self::isError($attr)) {
+ continue;
+ }
+
+ if (false !== strpos($attr['syntax'], '1.3.6.1.4.1.1466.115.121.1.15')) {
+ $encode = true;
+ } else {
+ $encode = false;
+ }
+ $this->_schemaAttrs[$k] = $encode;
+
+ } else {
+ $encode = $this->_schemaAttrs[$k];
+ }
+
+ if ($encode) {
+ if (is_array($v)) {
+ foreach ($v as $ak => $av) {
+ $v[$ak] = call_user_func($function, $av);
+ }
+ } else {
+ $v = call_user_func($function, $v);
+ }
+ }
+ $attributes[$k] = $v;
+ }
+ }
+ return $attributes;
+ }
+
+ /**
+ * Get the LDAP link resource. It will loop attempting to
+ * re-establish the connection if the connection attempt fails and
+ * auto_reconnect has been turned on (see the _config array documentation).
+ *
+ * @access public
+ * @return resource LDAP link
+ */
+ public function &getLink()
+ {
+ if ($this->_config['auto_reconnect']) {
+ while (true) {
+ //
+ // Return the link handle if we are already connected. Otherwise
+ // try to reconnect.
+ //
+ if ($this->_link !== false) {
+ return $this->_link;
+ } else {
+ $this->performReconnect();
+ }
+ }
+ }
+ return $this->_link;
+ }
+}
+
+/**
+* Net_LDAP2_Error implements a class for reporting portable LDAP error messages.
+*
+* @category Net
+* @package Net_LDAP2
+* @author Tarjej Huse <tarjei@bergfald.no>
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP22/
+*/
+class Net_LDAP2_Error extends PEAR_Error
+{
+ /**
+ * Net_LDAP2_Error constructor.
+ *
+ * @param string $message String with error message.
+ * @param integer $code Net_LDAP2 error code
+ * @param integer $mode what "error mode" to operate in
+ * @param mixed $level what error level to use for $mode & PEAR_ERROR_TRIGGER
+ * @param mixed $debuginfo additional debug info, such as the last query
+ *
+ * @access public
+ * @see PEAR_Error
+ */
+ public function __construct($message = 'Net_LDAP2_Error', $code = NET_LDAP2_ERROR, $mode = PEAR_ERROR_RETURN,
+ $level = E_USER_NOTICE, $debuginfo = null)
+ {
+ if (is_int($code)) {
+ $this->PEAR_Error($message . ': ' . Net_LDAP2::errorMessage($code), $code, $mode, $level, $debuginfo);
+ } else {
+ $this->PEAR_Error("$message: $code", NET_LDAP2_ERROR, $mode, $level, $debuginfo);
+ }
+ }
+}
+
+?>
diff --git a/extlib/Net/LDAP2/Entry.php b/extlib/Net/LDAP2/Entry.php
new file mode 100644
index 000000000..66de96678
--- /dev/null
+++ b/extlib/Net/LDAP2/Entry.php
@@ -0,0 +1,1055 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2_Entry interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Jan Wagner <wagner@netsols.de>
+* @author Tarjej Huse <tarjei@bergfald.no>
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2009 Tarjej Huse, Jan Wagner, Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: Entry.php 286787 2009-08-04 06:03:12Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* Includes
+*/
+require_once 'PEAR.php';
+require_once 'Util.php';
+
+/**
+* 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.
+*
+* @category Net
+* @package Net_LDAP2
+* @author Jan Wagner <wagner@netsols.de>
+* @author Tarjej Huse <tarjei@bergfald.no>
+* @author Benedikt Hallinger <beni@php.net>
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+class Net_LDAP2_Entry extends PEAR
+{
+ /**
+ * Entry ressource identifier
+ *
+ * @access protected
+ * @var ressource
+ */
+ protected $_entry = null;
+
+ /**
+ * LDAP ressource identifier
+ *
+ * @access protected
+ * @var ressource
+ */
+ protected $_link = null;
+
+ /**
+ * Net_LDAP2 object
+ *
+ * This object will be used for updating and schema checking
+ *
+ * @access protected
+ * @var object Net_LDAP2
+ */
+ protected $_ldap = null;
+
+ /**
+ * Distinguished name of the entry
+ *
+ * @access protected
+ * @var string
+ */
+ protected $_dn = null;
+
+ /**
+ * Attributes
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_attributes = array();
+
+ /**
+ * Original attributes before any modification
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_original = array();
+
+
+ /**
+ * Map of attribute names
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_map = array();
+
+
+ /**
+ * Is this a new entry?
+ *
+ * @access protected
+ * @var boolean
+ */
+ protected $_new = true;
+
+ /**
+ * New distinguished name
+ *
+ * @access protected
+ * @var string
+ */
+ protected $_newdn = null;
+
+ /**
+ * Shall the entry be deleted?
+ *
+ * @access protected
+ * @var boolean
+ */
+ protected $_delete = false;
+
+ /**
+ * Map with changes to the entry
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_changes = array("add" => array(),
+ "delete" => array(),
+ "replace" => array()
+ );
+ /**
+ * Internal Constructor
+ *
+ * Constructor of the entry. Sets up the distinguished name and the entries
+ * attributes.
+ * You should not call this method manually! Use {@link Net_LDAP2_Entry::createFresh()}
+ * or {@link Net_LDAP2_Entry::createConnected()} instead!
+ *
+ * @param Net_LDAP2|ressource|array &$ldap Net_LDAP2 object, ldap-link ressource or array of attributes
+ * @param string|ressource $entry Either a DN or a LDAP-Entry ressource
+ *
+ * @access protected
+ * @return none
+ */
+ protected function __construct(&$ldap, $entry = null)
+ {
+ $this->PEAR('Net_LDAP2_Error');
+
+ // set up entry resource or DN
+ if (is_resource($entry)) {
+ $this->_entry = &$entry;
+ } else {
+ $this->_dn = $entry;
+ }
+
+ // set up LDAP link
+ if ($ldap instanceof Net_LDAP2) {
+ $this->_ldap = &$ldap;
+ $this->_link = $ldap->getLink();
+ } elseif (is_resource($ldap)) {
+ $this->_link = $ldap;
+ } elseif (is_array($ldap)) {
+ // Special case: here $ldap is an array of attributes,
+ // this means, we have no link. This is a "virtual" entry.
+ // We just set up the attributes so one can work with the object
+ // as expected, but an update() fails unless setLDAP() is called.
+ $this->setAttributes($ldap);
+ }
+
+ // if this is an entry existing in the directory,
+ // then set up as old and fetch attrs
+ if (is_resource($this->_entry) && is_resource($this->_link)) {
+ $this->_new = false;
+ $this->_dn = @ldap_get_dn($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_LDAP2_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:
+ * <code>
+ * $attrs = array( 'attribute1' => array('value1', 'value2'),
+ * 'attribute2' => 'single value'
+ * );
+ * </code>
+ *
+ * @param string $dn DN of the Entry
+ * @param array $attrs Attributes of the entry
+ *
+ * @static
+ * @return Net_LDAP2_Entry|Net_LDAP2_Error
+ */
+ public static function createFresh($dn, $attrs = array())
+ {
+ if (!is_array($attrs)) {
+ return PEAR::raiseError("Unable to create fresh entry: Parameter \$attrs needs to be an array!");
+ }
+
+ $entry = new Net_LDAP2_Entry($attrs, $dn);
+ return $entry;
+ }
+
+ /**
+ * Creates a Net_LDAP2_Entry object out of an ldap entry resource
+ *
+ * Use this method, if you want to initialize an entry object that is
+ * already present in some directory and that you have read manually.
+ *
+ * Please note, that if you want to create an entry object that represents
+ * some already existing entry, you should use {@link createExisting()}.
+ *
+ * The method should be called statically: $entry = Net_LDAP2_Entry::createConnected();
+ *
+ * @param Net_LDAP2 $ldap Net_LDA2 object
+ * @param resource $entry PHP LDAP entry resource
+ *
+ * @static
+ * @return Net_LDAP2_Entry|Net_LDAP2_Error
+ */
+ public static function createConnected($ldap, $entry)
+ {
+ if (!$ldap instanceof Net_LDAP2) {
+ return PEAR::raiseError("Unable to create connected entry: Parameter \$ldap needs to be a Net_LDAP2 object!");
+ }
+ if (!is_resource($entry)) {
+ return PEAR::raiseError("Unable to create connected entry: Parameter \$entry needs to be a ldap entry resource!");
+ }
+
+ $entry = new Net_LDAP2_Entry($ldap, $entry);
+ return $entry;
+ }
+
+ /**
+ * Creates an Net_LDAP2_Entry object that is considered already existing
+ *
+ * Use this method, if you want to modify an already existing entry
+ * without fetching it first.
+ * In most cases however, it is better to fetch the entry via Net_LDAP2->getEntry()!
+ *
+ * Please note that you should take care if you construct entries manually with this
+ * because you may get weird synchronisation problems.
+ * The attributes and values as well as the entry itself are considered existent
+ * which may produce errors if you try to modify an entry which doesn't really exist
+ * or if you try to overwrite some attribute with an value already present.
+ *
+ * This method is equal to calling createFresh() and after that markAsNew(FALSE).
+ *
+ * The method should be called statically: $entry = Net_LDAP2_Entry::createExisting();
+ *
+ * The attributes parameter is as following:
+ * <code>
+ * $attrs = array( 'attribute1' => array('value1', 'value2'),
+ * 'attribute2' => 'single value'
+ * );
+ * </code>
+ *
+ * @param string $dn DN of the Entry
+ * @param array $attrs Attributes of the entry
+ *
+ * @static
+ * @return Net_LDAP2_Entry|Net_LDAP2_Error
+ */
+ public static function createExisting($dn, $attrs = array())
+ {
+ if (!is_array($attrs)) {
+ return PEAR::raiseError("Unable to create entry object: Parameter \$attrs needs to be an array!");
+ }
+
+ $entry = Net_LDAP2_Entry::createFresh($dn, $attrs);
+ if ($entry instanceof Net_LDAP2_Error) {
+ return $entry;
+ } else {
+ $entry->markAsNew(false);
+ return $entry;
+ }
+ }
+
+ /**
+ * 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_LDAP2_Util::canonical_dn()} for properly encoding of the DN.
+ *
+ * @param string $dn New distinguished name
+ *
+ * @access public
+ * @return string|true Distinguished name (or true if a new DN was provided)
+ */
+ public function dn($dn = null)
+ {
+ if (false == is_null($dn)) {
+ if (is_null($this->_dn)) {
+ $this->_dn = $dn;
+ } else {
+ $this->_newdn = $dn;
+ }
+ return true;
+ }
+ return (isset($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 $newdn The new DN
+ *
+ * @return true
+ */
+ public function move($newdn)
+ {
+ 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
+ * as binary values.
+ *
+ * Attributes may be passed directly via the $attributes parameter to setup this
+ * entry manually. This overrides attribute fetching from the server.
+ *
+ * @param array $attributes Attributes to set for this entry
+ *
+ * @access protected
+ * @return void
+ */
+ protected function setAttributes($attributes = null)
+ {
+ /*
+ * fetch attributes from the server
+ */
+ if (is_null($attributes) && is_resource($this->_entry) && is_resource($this->_link)) {
+ // fetch schema
+ if ($this->_ldap instanceof Net_LDAP2) {
+ $schema =& $this->_ldap->schema();
+ }
+ // fetch attributes
+ $attributes = array();
+ do {
+ if (empty($attr)) {
+ $ber = null;
+ $attr = @ldap_first_attribute($this->_link, $this->_entry, $ber);
+ } else {
+ $attr = @ldap_next_attribute($this->_link, $this->_entry, $ber);
+ }
+ if ($attr) {
+ $func = 'ldap_get_values'; // standard function to fetch value
+
+ // Try to get binary values as binary data
+ if ($schema instanceof Net_LDAP2_Schema) {
+ if ($schema->isBinary($attr)) {
+ $func = 'ldap_get_values_len';
+ }
+ }
+ // fetch attribute value (needs error checking?)
+ $attributes[$attr] = $func($this->_link, $this->_entry, $attr);
+ }
+ } while ($attr);
+ }
+
+ /*
+ * set attribute data directly, if passed
+ */
+ if (is_array($attributes) && count($attributes) > 0) {
+ if (isset($attributes["count"]) && is_numeric($attributes["count"])) {
+ unset($attributes["count"]);
+ }
+ foreach ($attributes as $k => $v) {
+ // attribute names should not be numeric
+ if (is_numeric($k)) {
+ continue;
+ }
+ // map generic attribute name to real one
+ $this->_map[strtolower($k)] = $k;
+ // attribute values should be in an array
+ if (false == is_array($v)) {
+ $v = array($v);
+ }
+ // remove the value count (comes from ldap server)
+ if (isset($v["count"])) {
+ unset($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>
+ *
+ * @access public
+ * @return array Hash of all attributes with their values
+ */
+ public function getValues()
+ {
+ $attrs = array();
+ foreach ($this->_attributes as $attr => $value) {
+ $attrs[$attr] = $this->getValue($attr);
+ }
+ return $attrs;
+ }
+
+ /**
+ * 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
+ * array
+ * '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 $option Option
+ *
+ * @access public
+ * @return string|array|PEAR_Error string, array or PEAR_Error
+ */
+ public function getValue($attr, $option = null)
+ {
+ $attr = $this->getAttrName($attr);
+
+ if (false == array_key_exists($attr, $this->_attributes)) {
+ return PEAR::raiseError("Unknown attribute ($attr) requested");
+ }
+
+ $value = $this->_attributes[$attr];
+
+ if ($option == "single" || (count($value) == 1 && $option != 'all')) {
+ $value = array_shift($value);
+ }
+
+ return $value;
+ }
+
+ /**
+ * Alias function of getValue for perl-ldap interface
+ *
+ * @see getValue()
+ * @return string|array|PEAR_Error
+ */
+ public function get_value()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array( &$this, 'getValue' ), $args);
+ }
+
+ /**
+ * Returns an array of attributes names
+ *
+ * @access public
+ * @return array Array of attribute names
+ */
+ public function attributes()
+ {
+ return array_keys($this->_attributes);
+ }
+
+ /**
+ * Returns whether an attribute exists or not
+ *
+ * @param string $attr Attribute name
+ *
+ * @access public
+ * @return boolean
+ */
+ public function exists($attr)
+ {
+ $attr = $this->getAttrName($attr);
+ return array_key_exists($attr, $this->_attributes);
+ }
+
+ /**
+ * 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 $attr Attributes to add
+ *
+ * @access public
+ * @return true|Net_LDAP2_Error
+ */
+ public function add($attr = array())
+ {
+ if (false == is_array($attr)) {
+ return PEAR::raiseError("Parameter must be an array");
+ }
+ foreach ($attr as $k => $v) {
+ $k = $this->getAttrName($k);
+ if (false == is_array($v)) {
+ // Do not add empty values
+ if ($v == null) {
+ continue;
+ } else {
+ $v = array($v);
+ }
+ }
+ // add new values to existing attribute or add new attribute
+ if ($this->exists($k)) {
+ $this->_attributes[$k] = array_unique(array_merge($this->_attributes[$k], $v));
+ } else {
+ $this->_map[strtolower($k)] = $k;
+ $this->_attributes[$k] = $v;
+ }
+ // save changes for update()
+ if (empty($this->_changes["add"][$k])) {
+ $this->_changes["add"][$k] = array();
+ }
+ $this->_changes["add"][$k] = array_unique(array_merge($this->_changes["add"][$k], $v));
+ }
+ $return = true;
+ return $return;
+ }
+
+ /**
+ * 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
+ * deleted
+ * array("attributename" => "value") - The value will be deleted
+ * array("attributename" => array("value1", "value2") - The given values
+ * will be deleted
+ * 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
+ * and remove nothing.
+ *
+ * @param string|array $attr Attributes to delete (NULL or missing to delete whole entry)
+ *
+ * @access public
+ * @return true
+ */
+ public function delete($attr = null)
+ {
+ if (is_null($attr)) {
+ $this->_delete = true;
+ return true;
+ }
+ if (is_string($attr)) {
+ $attr = array($attr);
+ }
+ // Make the assumption that attribute names cannot be numeric,
+ // therefore this has to be a simple list of attribute names to delete
+ if (is_numeric(key($attr))) {
+ foreach ($attr as $name) {
+ if (is_array($name)) {
+ // someone mixed modes (list mode but specific values given!)
+ $del_attr_name = array_search($name, $attr);
+ $this->delete(array($del_attr_name => $name));
+ } else {
+ // mark for update() if this attr was not marked before
+ $name = $this->getAttrName($name);
+ if ($this->exists($name)) {
+ $this->_changes["delete"][$name] = null;
+ unset($this->_attributes[$name]);
+ }
+ }
+ }
+ } else {
+ // Here we have a hash with "attributename" => "value to delete"
+ foreach ($attr as $name => $values) {
+ if (is_int($name)) {
+ // someone mixed modes and gave us just an attribute name
+ $this->delete($values);
+ } else {
+ // mark for update() if this attr was not marked before;
+ // this time it must consider the selected values also
+ $name = $this->getAttrName($name);
+ if ($this->exists($name)) {
+ if (false == is_array($values)) {
+ $values = array($values);
+ }
+ // save values to be deleted
+ if (empty($this->_changes["delete"][$name])) {
+ $this->_changes["delete"][$name] = array();
+ }
+ $this->_changes["delete"][$name] =
+ array_unique(array_merge($this->_changes["delete"][$name], $values));
+ foreach ($values as $value) {
+ // find the key for the value that should be deleted
+ $key = array_search($value, $this->_attributes[$name]);
+ if (false !== $key) {
+ // delete the value
+ unset($this->_attributes[$name][$key]);
+ }
+ }
+ }
+ }
+ }
+ }
+ $return = true;
+ return $return;
+ }
+
+ /**
+ * Replaces attributes or its values
+ *
+ * The parameter has to an array of the following form:
+ * array("attributename" => "single value",
+ * "attribute2name" => array("value1", "value2"),
+ * "deleteme1" => null,
+ * "deleteme2" => "")
+ * If the attribute does not yet exist it will be added instead (see also $force).
+ * 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.
+ *
+ * In some cases you are not allowed to read the attributes value (for
+ * example the ActiveDirectory attribute unicodePwd) but are allowed to
+ * replace the value. In this case replace() would assume that the attribute
+ * is not in the directory yet and tries to add it which will result in an
+ * LDAP_TYPE_OR_VALUE_EXISTS error.
+ * To force replace mode instead of add, you can set $force to true.
+ *
+ * @param array $attr Attributes to replace
+ * @param bool $force Force replacing mode in case we can't read the attr value but are allowed to replace it
+ *
+ * @access public
+ * @return true|Net_LDAP2_Error
+ */
+ public function replace($attr = array(), $force = false)
+ {
+ if (false == is_array($attr)) {
+ return PEAR::raiseError("Parameter must be an array");
+ }
+ foreach ($attr as $k => $v) {
+ $k = $this->getAttrName($k);
+ if (false == is_array($v)) {
+ // delete attributes with empty values; treat ints as string
+ if (is_int($v)) {
+ $v = "$v";
+ }
+ if ($v == null) {
+ $this->delete($k);
+ continue;
+ } else {
+ $v = array($v);
+ }
+ }
+ // existing attributes will get replaced
+ if ($this->exists($k) || $force) {
+ $this->_changes["replace"][$k] = $v;
+ $this->_attributes[$k] = $v;
+ } else {
+ // new ones just get added
+ $this->add(array($k => $v));
+ }
+ }
+ $return = true;
+ return $return;
+ }
+
+ /**
+ * Update the entry on the directory server
+ *
+ * This will evaluate all changes made so far and send them
+ * to the directory server.
+ * Please note, that if you make changes to objectclasses wich
+ * have mandatory attributes set, update() will currently fail.
+ * Remove the entry from the server and readd it as new in such cases.
+ * This also will deal with problems with setting structural object classes.
+ *
+ * @param Net_LDAP2 $ldap If passed, a call to setLDAP() is issued prior update, thus switching the LDAP-server. This is for perl-ldap interface compliance
+ *
+ * @access public
+ * @return true|Net_LDAP2_Error
+ * @todo Entry rename with a DN containing special characters needs testing!
+ */
+ public function update($ldap = null)
+ {
+ if ($ldap) {
+ $msg = $this->setLDAP($ldap);
+ if (Net_LDAP2::isError($msg)) {
+ return PEAR::raiseError('You passed an invalid $ldap variable to update()');
+ }
+ }
+
+ // ensure we have a valid LDAP object
+ $ldap =& $this->getLDAP();
+ if (!$ldap instanceof Net_LDAP2) {
+ return PEAR::raiseError("The entries LDAP object is not valid");
+ }
+
+ // Get and check link
+ $link = $ldap->getLink();
+ if (!is_resource($link)) {
+ return PEAR::raiseError("Could not update entry: internal LDAP link is invalid");
+ }
+
+ /*
+ * Delete the entry
+ */
+ if (true === $this->_delete) {
+ return $ldap->delete($this);
+ }
+
+ /*
+ * New entry
+ */
+ if (true === $this->_new) {
+ $msg = $ldap->add($this);
+ if (Net_LDAP2::isError($msg)) {
+ return $msg;
+ }
+ $this->_new = false;
+ $this->_changes['add'] = array();
+ $this->_changes['delete'] = array();
+ $this->_changes['replace'] = array();
+ $this->_original = $this->_attributes;
+
+ $return = true;
+ return $return;
+ }
+
+ /*
+ * Rename/move entry
+ */
+ if (false == is_null($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)
+ $parent = Net_LDAP2_Util::ldap_explode_dn($this->_newdn, array('casefolding' => 'none', 'reverse' => false, 'onlyvalues' => false));
+ if (Net_LDAP2::isError($parent)) {
+ return $parent;
+ }
+ $child = array_shift($parent);
+ // maybe the dn consist of a multivalued RDN, we must build the dn in this case
+ // because the $child-RDN is an array!
+ if (is_array($child)) {
+ $child = Net_LDAP2_Util::canonical_dn($child);
+ }
+ $parent = Net_LDAP2_Util::canonical_dn($parent);
+
+ // rename/move
+ 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;
+ $this->_newdn = null;
+ }
+
+ /*
+ * Carry out modifications to the entry
+ */
+ // ADD
+ foreach ($this->_changes["add"] as $attr => $value) {
+ // if attribute exists, add new values
+ if ($this->exists($attr)) {
+ if (false === @ldap_mod_add($link, $this->dn(), array($attr => $value))) {
+ return PEAR::raiseError("Could not add new values to attribute $attr: " .
+ @ldap_error($link), @ldap_errno($link));
+ }
+ } else {
+ // new attribute
+ if (false === @ldap_modify($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"][$attr]);
+ }
+
+ // DELETE
+ foreach ($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"][$attr]);
+ }
+
+ // REPLACE
+ foreach ($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;
+
+ $return = true;
+ return $return;
+ }
+
+ /**
+ * Returns the right attribute name
+ *
+ * @param string $attr Name of attribute
+ *
+ * @access protected
+ * @return string The right name of the attribute
+ */
+ protected function getAttrName($attr)
+ {
+ $name = strtolower($attr);
+ if (array_key_exists($name, $this->_map)) {
+ $attr = $this->_map[$name];
+ }
+ return $attr;
+ }
+
+ /**
+ * Returns a reference to the LDAP-Object of this entry
+ *
+ * @access public
+ * @return Net_LDAP2|Net_LDAP2_Error Reference to the Net_LDAP2 Object (the connection) or Net_LDAP2_Error
+ */
+ public function &getLDAP()
+ {
+ if (!$this->_ldap instanceof Net_LDAP2) {
+ $err = new PEAR_Error('LDAP is not a valid Net_LDAP2 object');
+ return $err;
+ } else {
+ return $this->_ldap;
+ }
+ }
+
+ /**
+ * Sets a reference to the LDAP-Object of this entry
+ *
+ * After setting a Net_LDAP2 object, calling update() will use that object for
+ * updating directory contents. Use this to dynamicly switch directorys.
+ *
+ * @param Net_LDAP2 &$ldap Net_LDAP2 object that this entry should be connected to
+ *
+ * @access public
+ * @return true|Net_LDAP2_Error
+ */
+ public function setLDAP(&$ldap)
+ {
+ if (!$ldap instanceof Net_LDAP2) {
+ return PEAR::raiseError("LDAP is not a valid Net_LDAP2 object");
+ } else {
+ $this->_ldap =& $ldap;
+ return true;
+ }
+ }
+
+ /**
+ * Marks the entry as new/existing.
+ *
+ * If an Entry is marked as new, it will be added to the directory
+ * when calling {@link update()}.
+ * If the entry is marked as old ($mark = false), then the entry is
+ * assumed to be present in the directory server wich results in
+ * modification when calling {@link update()}.
+ *
+ * @param boolean $mark Value to set, defaults to "true"
+ *
+ * @return void
+ */
+ public function markAsNew($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):
+ * <code>
+ * $matches = array(
+ * 0 => array (usual preg_match() returnarray),
+ * 1 => array (usual preg_match() returnarray)
+ * )
+ * </code>
+ * Please note, that $matches will be initialized to an empty array inside.
+ *
+ * Usage example:
+ * <code>
+ * $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
+ * } else {
+ * if ( Net_LDAP2::isError($result) ) {
+ * echo "Error: ".$result->getMessage();
+ * } else {
+ * echo "No match found.";
+ * }
+ * }
+ * </code>
+ *
+ * Please note that it is important to test for an Net_LDAP2_Error, because objects are
+ * evaluating to true by default, thus if an 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 $matches (optional, PASS BY REFERENCE!) Array to store matches in
+ *
+ * @return boolean|Net_LDAP2_Error TRUE, if we had a match in one of the values, otherwise false. Net_LDAP2_Error in case something went wrong
+ */
+ public function pregMatch($regex, $attr_name, $matches = array())
+ {
+ $matches = array();
+
+ // fetch attribute values
+ $attr = $this->getValue($attr_name, 'all');
+ if (Net_LDAP2::isError($attr)) {
+ return $attr;
+ } else {
+ unset($attr['count']);
+ }
+
+ // perform preg_match() on all values
+ $match = false;
+ foreach ($attr as $thisvalue) {
+ $matches_int = array();
+ if (preg_match($regex, $thisvalue, $matches_int)) {
+ $match = true;
+ array_push($matches, $matches_int); // store matches in reference
+ }
+ }
+ return $match;
+ }
+
+ /**
+ * Alias of {@link pregMatch()} for compatibility to Net_LDAP 1
+ *
+ * @see pregMatch()
+ * @return boolean|Net_LDAP2_Error
+ */
+ public function preg_match()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array( &$this, 'pregMatch' ), $args);
+ }
+
+ /**
+ * Tells if the entry is consiedered as new (not present in the server)
+ *
+ * Please note, that this doesn't tell you if the entry is present on the server.
+ * Use {@link Net_LDAP2::dnExists()} to see if an entry is already there.
+ *
+ * @return boolean
+ */
+ public function isNew()
+ {
+ return $this->_new;
+ }
+
+
+ /**
+ * Is this entry going to be deleted once update() is called?
+ *
+ * @return boolean
+ */
+ public function willBeDeleted()
+ {
+ return $this->_delete;
+ }
+
+ /**
+ * Is this entry going to be moved once update() is called?
+ *
+ * @return boolean
+ */
+ public function willBeMoved()
+ {
+ return ($this->dn() !== $this->currentDN());
+ }
+
+ /**
+ * 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.
+ *
+ * @return string
+ */
+ public function currentDN()
+ {
+ return $this->_dn;
+ }
+
+ /**
+ * Returns the attribute changes to be carried out once update() is called
+ *
+ * @return array
+ */
+ public function getChanges()
+ {
+ return $this->_changes;
+ }
+}
+?>
diff --git a/extlib/Net/LDAP2/Filter.php b/extlib/Net/LDAP2/Filter.php
new file mode 100644
index 000000000..0723edab2
--- /dev/null
+++ b/extlib/Net/LDAP2/Filter.php
@@ -0,0 +1,514 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2_Filter interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2009 Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: Filter.php 289978 2009-10-27 09:56:41Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* Includes
+*/
+require_once 'PEAR.php';
+require_once 'Util.php';
+
+/**
+* Object representation of a part of a LDAP filter.
+*
+* This Class is not completely compatible to the PERL interface!
+*
+* The purpose of this class is, that users can easily build LDAP filters
+* without having to worry about right escaping etc.
+* A Filter is built using several independent filter objects
+* which are combined afterwards. This object works in two
+* modes, depending how the object is created.
+* If the object is created using the {@link create()} method, then this is a leaf-object.
+* If the object is created using the {@link combine()} method, then this is a container object.
+*
+* LDAP filters are defined in RFC-2254 and can be found under
+* {@link http://www.ietf.org/rfc/rfc2254.txt}
+*
+* Here a quick copy&paste example:
+* <code>
+* $filter0 = Net_LDAP2_Filter::create('stars', 'equals', '***');
+* $filter_not0 = Net_LDAP2_Filter::combine('not', $filter0);
+*
+* $filter1 = Net_LDAP2_Filter::create('gn', 'begins', 'bar');
+* $filter2 = Net_LDAP2_Filter::create('gn', 'ends', 'baz');
+* $filter_comp = Net_LDAP2_Filter::combine('or',array($filter_not0, $filter1, $filter2));
+*
+* echo $filter_comp->asString();
+* // This will output: (|(!(stars=\0x5c0x2a\0x5c0x2a\0x5c0x2a))(gn=bar*)(gn=*baz))
+* // The stars in $filter0 are treaten as real stars unless you disable escaping.
+* </code>
+*
+* @category Net
+* @package Net_LDAP2
+* @author Benedikt Hallinger <beni@php.net>
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+class Net_LDAP2_Filter extends PEAR
+{
+ /**
+ * Storage for combination of filters
+ *
+ * This variable holds a array of filter objects
+ * that should be combined by this filter object.
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_subfilters = array();
+
+ /**
+ * Match of this filter
+ *
+ * If this is a leaf filter, then a matching rule is stored,
+ * if it is a container, then it is a logical operator
+ *
+ * @access protected
+ * @var string
+ */
+ protected $_match;
+
+ /**
+ * Single filter
+ *
+ * If we operate in leaf filter mode,
+ * then the constructing method stores
+ * the filter representation here
+ *
+ * @acces private
+ * @var string
+ */
+ protected $_filter;
+
+ /**
+ * Create a new Net_LDAP2_Filter object and parse $filter.
+ *
+ * This is for PERL Net::LDAP interface.
+ * Construction of Net_LDAP2_Filter objects should happen through either
+ * {@link create()} or {@link combine()} which give you more control.
+ * However, you may use the perl iterface if you already have generated filters.
+ *
+ * @param string $filter LDAP filter string
+ *
+ * @see parse()
+ */
+ public function __construct($filter = false)
+ {
+ // The optional parameter must remain here, because otherwise create() crashes
+ if (false !== $filter) {
+ $filter_o = self::parse($filter);
+ if (PEAR::isError($filter_o)) {
+ $this->_filter = $filter_o; // assign error, so asString() can report it
+ } else {
+ $this->_filter = $filter_o->asString();
+ }
+ }
+ }
+
+ /**
+ * Constructor of a new part of a LDAP filter.
+ *
+ * The following matching rules exists:
+ * - equals: One of the attributes values is exactly $value
+ * Please note that case sensitiviness is depends on the
+ * attributes syntax configured in the server.
+ * - begins: One of the attributes values must begin with $value
+ * - ends: One of the attributes values must end with $value
+ * - contains: One of the attributes values must contain $value
+ * - present | any: The attribute can contain any value but must be existent
+ * - greater: The attributes value is greater than $value
+ * - less: The attributes value is less than $value
+ * - greaterOrEqual: The attributes value is greater or equal than $value
+ * - lessOrEqual: The attributes value is less or equal than $value
+ * - approx: One of the attributes values is similar to $value
+ *
+ * If $escape is set to true (default) then $value will be escaped
+ * properly. If it is set to false then $value will be treaten as raw filter value string.
+ * You should escape yourself using {@link Net_LDAP2_Util::escape_filter_value()}!
+ *
+ * Examples:
+ * <code>
+ * // This will find entries that contain an attribute "sn" that ends with "foobar":
+ * $filter = new Net_LDAP2_Filter('sn', 'ends', 'foobar');
+ *
+ * // This will find entries that contain an attribute "sn" that has any value set:
+ * $filter = new Net_LDAP2_Filter('sn', 'any');
+ * </code>
+ *
+ * @param string $attr_name Name of the attribute the filter should apply to
+ * @param string $match Matching rule (equals, begins, ends, contains, greater, less, greaterOrEqual, lessOrEqual, approx, any)
+ * @param string $value (optional) if given, then this is used as a filter
+ * @param boolean $escape Should $value be escaped? (default: yes, see {@link Net_LDAP2_Util::escape_filter_value()} for detailed information)
+ *
+ * @return Net_LDAP2_Filter|Net_LDAP2_Error
+ */
+ public static function &create($attr_name, $match, $value = '', $escape = true)
+ {
+ $leaf_filter = new Net_LDAP2_Filter();
+ if ($escape) {
+ $array = Net_LDAP2_Util::escape_filter_value(array($value));
+ $value = $array[0];
+ }
+ switch (strtolower($match)) {
+ case 'equals':
+ $leaf_filter->_filter = '(' . $attr_name . '=' . $value . ')';
+ break;
+ case 'begins':
+ $leaf_filter->_filter = '(' . $attr_name . '=' . $value . '*)';
+ break;
+ case 'ends':
+ $leaf_filter->_filter = '(' . $attr_name . '=*' . $value . ')';
+ break;
+ case 'contains':
+ $leaf_filter->_filter = '(' . $attr_name . '=*' . $value . '*)';
+ break;
+ case 'greater':
+ $leaf_filter->_filter = '(' . $attr_name . '>' . $value . ')';
+ break;
+ case 'less':
+ $leaf_filter->_filter = '(' . $attr_name . '<' . $value . ')';
+ break;
+ case 'greaterorequal':
+ case '>=':
+ $leaf_filter->_filter = '(' . $attr_name . '>=' . $value . ')';
+ break;
+ case 'lessorequal':
+ case '<=':
+ $leaf_filter->_filter = '(' . $attr_name . '<=' . $value . ')';
+ break;
+ case 'approx':
+ case '~=':
+ $leaf_filter->_filter = '(' . $attr_name . '~=' . $value . ')';
+ break;
+ case 'any':
+ case 'present': // alias that may improve user code readability
+ $leaf_filter->_filter = '(' . $attr_name . '=*)';
+ break;
+ default:
+ return PEAR::raiseError('Net_LDAP2_Filter create error: matching rule "' . $match . '" not known!');
+ }
+ return $leaf_filter;
+ }
+
+ /**
+ * Combine two or more filter objects using a logical operator
+ *
+ * This static method combines two or more filter objects and returns one single
+ * filter object that contains all the others.
+ * Call this method statically: $filter = Net_LDAP2_Filter('or', array($filter1, $filter2))
+ * If the array contains filter strings instead of filter objects, we will try to parse them.
+ *
+ * @param string $log_op The locicall operator. May be "and", "or", "not" or the subsequent logical equivalents "&", "|", "!"
+ * @param array|Net_LDAP2_Filter $filters array with Net_LDAP2_Filter objects
+ *
+ * @return Net_LDAP2_Filter|Net_LDAP2_Error
+ * @static
+ */
+ public static function &combine($log_op, $filters)
+ {
+ if (PEAR::isError($filters)) {
+ return $filters;
+ }
+
+ // substitude named operators to logical operators
+ if ($log_op == 'and') $log_op = '&';
+ if ($log_op == 'or') $log_op = '|';
+ if ($log_op == 'not') $log_op = '!';
+
+ // tests for sane operation
+ if ($log_op == '!') {
+ // Not-combination, here we only accept one filter object or filter string
+ if ($filters instanceof Net_LDAP2_Filter) {
+ $filters = array($filters); // force array
+ } elseif (is_string($filters)) {
+ $filter_o = self::parse($filters);
+ if (PEAR::isError($filter_o)) {
+ $err = PEAR::raiseError('Net_LDAP2_Filter combine error: '.$filter_o->getMessage());
+ return $err;
+ } else {
+ $filters = array($filter_o);
+ }
+ } elseif (is_array($filters)) {
+ $err = PEAR::raiseError('Net_LDAP2_Filter combine error: operator is "not" but $filter is an array!');
+ return $err;
+ } else {
+ $err = PEAR::raiseError('Net_LDAP2_Filter combine error: operator is "not" but $filter is not a valid Net_LDAP2_Filter nor a filter string!');
+ return $err;
+ }
+ } elseif ($log_op == '&' || $log_op == '|') {
+ if (!is_array($filters) || count($filters) < 2) {
+ $err = PEAR::raiseError('Net_LDAP2_Filter combine error: parameter $filters is not an array or contains less than two Net_LDAP2_Filter objects!');
+ return $err;
+ }
+ } else {
+ $err = PEAR::raiseError('Net_LDAP2_Filter combine error: logical operator is not known!');
+ return $err;
+ }
+
+ $combined_filter = new Net_LDAP2_Filter();
+ foreach ($filters as $key => $testfilter) { // check for errors
+ if (PEAR::isError($testfilter)) {
+ return $testfilter;
+ } elseif (is_string($testfilter)) {
+ // string found, try to parse into an filter object
+ $filter_o = self::parse($testfilter);
+ if (PEAR::isError($filter_o)) {
+ return $filter_o;
+ } else {
+ $filters[$key] = $filter_o;
+ }
+ } elseif (!$testfilter instanceof Net_LDAP2_Filter) {
+ $err = PEAR::raiseError('Net_LDAP2_Filter combine error: invalid object passed in array $filters!');
+ return $err;
+ }
+ }
+
+ $combined_filter->_subfilters = $filters;
+ $combined_filter->_match = $log_op;
+ return $combined_filter;
+ }
+
+ /**
+ * Parse FILTER into a Net_LDAP2_Filter object
+ *
+ * This parses an filter string into Net_LDAP2_Filter objects.
+ *
+ * @param string $FILTER The filter string
+ *
+ * @access static
+ * @return Net_LDAP2_Filter|Net_LDAP2_Error
+ * @todo Leaf-mode: Do we need to escape at all? what about *-chars?check for the need of encoding values, tackle problems (see code comments)
+ */
+ public static function parse($FILTER)
+ {
+ if (preg_match('/^\((.+?)\)$/', $FILTER, $matches)) {
+ if (in_array(substr($matches[1], 0, 1), array('!', '|', '&'))) {
+ // Subfilter processing: pass subfilters to parse() and combine
+ // the objects using the logical operator detected
+ // we have now something like "&(...)(...)(...)" but at least one part ("!(...)").
+ // Each subfilter could be an arbitary complex subfilter.
+
+ // extract logical operator and filter arguments
+ $log_op = substr($matches[1], 0, 1);
+ $remaining_component = substr($matches[1], 1);
+
+ // split $remaining_component into individual subfilters
+ // we cannot use split() for this, because we do not know the
+ // complexiness of the subfilter. Thus, we look trough the filter
+ // string and just recognize ending filters at the first level.
+ // We record the index number of the char and use that information
+ // later to split the string.
+ $sub_index_pos = array();
+ $prev_char = ''; // previous character looked at
+ $level = 0; // denotes the current bracket level we are,
+ // >1 is too deep, 1 is ok, 0 is outside any
+ // subcomponent
+ for ($curpos = 0; $curpos < strlen($remaining_component); $curpos++) {
+ $cur_char = substr($remaining_component, $curpos, 1);
+
+ // rise/lower bracket level
+ if ($cur_char == '(' && $prev_char != '\\') {
+ $level++;
+ } elseif ($cur_char == ')' && $prev_char != '\\') {
+ $level--;
+ }
+
+ if ($cur_char == '(' && $prev_char == ')' && $level == 1) {
+ array_push($sub_index_pos, $curpos); // mark the position for splitting
+ }
+ $prev_char = $cur_char;
+ }
+
+ // now perform the splits. To get also the last part, we
+ // need to add the "END" index to the split array
+ array_push($sub_index_pos, strlen($remaining_component));
+ $subfilters = array();
+ $oldpos = 0;
+ foreach ($sub_index_pos as $s_pos) {
+ $str_part = substr($remaining_component, $oldpos, $s_pos - $oldpos);
+ array_push($subfilters, $str_part);
+ $oldpos = $s_pos;
+ }
+
+ // some error checking...
+ if (count($subfilters) == 1) {
+ // only one subfilter found
+ } elseif (count($subfilters) > 1) {
+ // several subfilters found
+ if ($log_op == "!") {
+ return PEAR::raiseError("Filter parsing error: invalid filter syntax - NOT operator detected but several arguments given!");
+ }
+ } else {
+ // this should not happen unless the user specified a wrong filter
+ return PEAR::raiseError("Filter parsing error: invalid filter syntax - got operator '$log_op' but no argument!");
+ }
+
+ // Now parse the subfilters into objects and combine them using the operator
+ $subfilters_o = array();
+ foreach ($subfilters as $s_s) {
+ $o = self::parse($s_s);
+ if (PEAR::isError($o)) {
+ return $o;
+ } else {
+ array_push($subfilters_o, self::parse($s_s));
+ }
+ }
+
+ $filter_o = self::combine($log_op, $subfilters_o);
+ return $filter_o;
+
+ } else {
+ // This is one leaf filter component, do some syntax checks, then escape and build filter_o
+ // $matches[1] should be now something like "foo=bar"
+
+ // detect multiple leaf components
+ // [TODO] Maybe this will make problems with filters containing brackets inside the value
+ if (stristr($matches[1], ')(')) {
+ return PEAR::raiseError("Filter parsing error: invalid filter syntax - multiple leaf components detected!");
+ } else {
+ $filter_parts = preg_split('/(?<!\\\\)(=|=~|>|<|>=|<=)/', $matches[1], 2, PREG_SPLIT_DELIM_CAPTURE);
+ if (count($filter_parts) != 3) {
+ return PEAR::raiseError("Filter parsing error: invalid filter syntax - unknown matching rule used");
+ } else {
+ $filter_o = new Net_LDAP2_Filter();
+ // [TODO]: Do we need to escape at all? what about *-chars user provide and that should remain special?
+ // I think, those prevent escaping! We need to check against PERL Net::LDAP!
+ // $value_arr = Net_LDAP2_Util::escape_filter_value(array($filter_parts[2]));
+ // $value = $value_arr[0];
+ $value = $filter_parts[2];
+ $filter_o->_filter = '('.$filter_parts[0].$filter_parts[1].$value.')';
+ return $filter_o;
+ }
+ }
+ }
+ } else {
+ // ERROR: Filter components must be enclosed in round brackets
+ return PEAR::raiseError("Filter parsing error: invalid filter syntax - filter components must be enclosed in round brackets");
+ }
+ }
+
+ /**
+ * Get the string representation of this filter
+ *
+ * This method runs through all filter objects and creates
+ * the string representation of the filter. If this
+ * filter object is a leaf filter, then it will return
+ * the string representation of this filter.
+ *
+ * @return string|Net_LDAP2_Error
+ */
+ public function asString()
+ {
+ if ($this->isLeaf()) {
+ $return = $this->_filter;
+ } else {
+ $return = '';
+ foreach ($this->_subfilters as $filter) {
+ $return = $return.$filter->asString();
+ }
+ $return = '(' . $this->_match . $return . ')';
+ }
+ return $return;
+ }
+
+ /**
+ * Alias for perl interface as_string()
+ *
+ * @see asString()
+ * @return string|Net_LDAP2_Error
+ */
+ public function as_string()
+ {
+ return $this->asString();
+ }
+
+ /**
+ * Print the text representation of the filter to FH, or the currently selected output handle if FH is not given
+ *
+ * This method is only for compatibility to the perl interface.
+ * However, the original method was called "print" but due to PHP language restrictions,
+ * we can't have a print() method.
+ *
+ * @param resource $FH (optional) A filehandle resource
+ *
+ * @return true|Net_LDAP2_Error
+ */
+ public function printMe($FH = false)
+ {
+ if (!is_resource($FH)) {
+ if (PEAR::isError($FH)) {
+ return $FH;
+ }
+ $filter_str = $this->asString();
+ if (PEAR::isError($filter_str)) {
+ return $filter_str;
+ } else {
+ print($filter_str);
+ }
+ } else {
+ $filter_str = $this->asString();
+ if (PEAR::isError($filter_str)) {
+ return $filter_str;
+ } else {
+ $res = @fwrite($FH, $this->asString());
+ if ($res == false) {
+ return PEAR::raiseError("Unable to write filter string to filehandle \$FH!");
+ }
+ }
+ }
+ return true;
+ }
+
+ /**
+ * This can be used to escape a string to provide a valid LDAP-Filter.
+ *
+ * LDAP will only recognise certain characters as the
+ * character istself if they are properly escaped. This is
+ * what this method does.
+ * The method can be called statically, so you can use it outside
+ * for your own purposes (eg for escaping only parts of strings)
+ *
+ * In fact, this is just a shorthand to {@link Net_LDAP2_Util::escape_filter_value()}.
+ * For upward compatibiliy reasons you are strongly encouraged to use the escape
+ * methods provided by the Net_LDAP2_Util class.
+ *
+ * @param string $value Any string who should be escaped
+ *
+ * @static
+ * @return string The string $string, but escaped
+ * @deprecated Do not use this method anymore, instead use Net_LDAP2_Util::escape_filter_value() directly
+ */
+ public static function escape($value)
+ {
+ $return = Net_LDAP2_Util::escape_filter_value(array($value));
+ return $return[0];
+ }
+
+ /**
+ * Is this a container or a leaf filter object?
+ *
+ * @access protected
+ * @return boolean
+ */
+ protected function isLeaf()
+ {
+ if (count($this->_subfilters) > 0) {
+ return false; // Container!
+ } else {
+ return true; // Leaf!
+ }
+ }
+}
+?>
diff --git a/extlib/Net/LDAP2/LDIF.php b/extlib/Net/LDAP2/LDIF.php
new file mode 100644
index 000000000..34f3e75dd
--- /dev/null
+++ b/extlib/Net/LDAP2/LDIF.php
@@ -0,0 +1,922 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2_LDIF interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2009 Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: LDIF.php 286718 2009-08-03 07:30:49Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* Includes
+*/
+require_once 'PEAR.php';
+require_once 'Net/LDAP2.php';
+require_once 'Net/LDAP2/Entry.php';
+require_once 'Net/LDAP2/Util.php';
+
+/**
+* LDIF capabilitys for Net_LDAP2, closely taken from PERLs Net::LDAP
+*
+* It provides a means to convert between Net_LDAP2_Entry objects and LDAP entries
+* represented in LDIF format files. Reading and writing are supported and may
+* manipulate single entries or lists of entries.
+*
+* Usage example:
+* <code>
+* // Read and parse an ldif-file into Net_LDAP2_Entry objects
+* // and print out the DNs. Store the entries for later use.
+* require 'Net/LDAP2/LDIF.php';
+* $options = array(
+* 'onerror' => 'die'
+* );
+* $entries = array();
+* $ldif = new Net_LDAP2_LDIF('test.ldif', 'r', $options);
+* do {
+* $entry = $ldif->read_entry();
+* $dn = $entry->dn();
+* echo " done building entry: $dn\n";
+* array_push($entries, $entry);
+* } while (!$ldif->eof());
+* $ldif->done();
+*
+*
+* // write those entries to another file
+* $ldif = new Net_LDAP2_LDIF('test.out.ldif', 'w', $options);
+* $ldif->write_entry($entries);
+* $ldif->done();
+* </code>
+*
+* @category Net
+* @package Net_LDAP2
+* @author Benedikt Hallinger <beni@php.net>
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP22/
+* @see http://www.ietf.org/rfc/rfc2849.txt
+* @todo Error handling should be PEARified
+* @todo LDAPv3 controls are not implemented yet
+*/
+class Net_LDAP2_LDIF extends PEAR
+{
+ /**
+ * Options
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_options = array('encode' => 'base64',
+ 'onerror' => null,
+ 'change' => 0,
+ 'lowercase' => 0,
+ 'sort' => 0,
+ 'version' => null,
+ 'wrap' => 78,
+ 'raw' => ''
+ );
+
+ /**
+ * Errorcache
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_error = array('error' => null,
+ 'line' => 0
+ );
+
+ /**
+ * Filehandle for read/write
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_FH = null;
+
+ /**
+ * Says, if we opened the filehandle ourselves
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_FH_opened = false;
+
+ /**
+ * Linecounter for input file handle
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_input_line = 0;
+
+ /**
+ * counter for processed entries
+ *
+ * @access protected
+ * @var int
+ */
+ protected $_entrynum = 0;
+
+ /**
+ * Mode we are working in
+ *
+ * Either 'r', 'a' or 'w'
+ *
+ * @access protected
+ * @var string
+ */
+ protected $_mode = false;
+
+ /**
+ * Tells, if the LDIF version string was already written
+ *
+ * @access protected
+ * @var boolean
+ */
+ protected $_version_written = false;
+
+ /**
+ * Cache for lines that have build the current entry
+ *
+ * @access protected
+ * @var boolean
+ */
+ protected $_lines_cur = array();
+
+ /**
+ * Cache for lines that will build the next entry
+ *
+ * @access protected
+ * @var boolean
+ */
+ protected $_lines_next = array();
+
+ /**
+ * Open LDIF file for reading or for writing
+ *
+ * new (FILE):
+ * Open the file read-only. FILE may be the name of a file
+ * or an already open filehandle.
+ * If the file doesn't exist, it will be created if in write mode.
+ *
+ * new (FILE, MODE, OPTIONS):
+ * Open the file with the given MODE (see PHPs fopen()), eg "w" or "a".
+ * FILE may be the name of a file or an already open filehandle.
+ * PERLs Net_LDAP2 "FILE|" mode does not work curently.
+ *
+ * OPTIONS is an associative array and may contain:
+ * encode => 'none' | 'canonical' | 'base64'
+ * Some DN values in LDIF cannot be written verbatim and have to be encoded in some way:
+ * 'none' No encoding.
+ * 'canonical' See "canonical_dn()" in Net::LDAP::Util.
+ * 'base64' Use base64. (default, this differs from the Perl interface.
+ * The perl default is "none"!)
+ *
+ * onerror => 'die' | 'warn' | NULL
+ * Specify what happens when an error is detected.
+ * 'die' Net_LDAP2_LDIF will croak with an appropriate message.
+ * 'warn' Net_LDAP2_LDIF will warn (echo) with an appropriate message.
+ * NULL Net_LDAP2_LDIF will not warn (default), use error().
+ *
+ * change => 1
+ * Write entry changes to the LDIF file instead of the entries itself. I.e. write LDAP
+ * operations acting on the entries to the file instead of the entries contents.
+ * This writes the changes usually carried out by an update() to the LDIF file.
+ *
+ * lowercase => 1
+ * Convert attribute names to lowercase when writing.
+ *
+ * sort => 1
+ * Sort attribute names when writing entries according to the rule:
+ * objectclass first then all other attributes alphabetically sorted by attribute name
+ *
+ * version => '1'
+ * Set the LDIF version to write to the resulting LDIF file.
+ * According to RFC 2849 currently the only legal value for this option is 1.
+ * When this option is set Net_LDAP2_LDIF tries to adhere more strictly to
+ * the LDIF specification in RFC2489 in a few places.
+ * The default is NULL meaning no version information is written to the LDIF file.
+ *
+ * wrap => 78
+ * Number of columns where output line wrapping shall occur.
+ * Default is 78. Setting it to 40 or lower inhibits wrapping.
+ *
+ * raw => REGEX
+ * Use REGEX to denote the names of attributes that are to be
+ * considered binary in search results if writing entries.
+ * Example: raw => "/(?i:^jpegPhoto|;binary)/i"
+ *
+ * @param string|ressource $file Filename or filehandle
+ * @param string $mode Mode to open filename
+ * @param array $options Options like described above
+ */
+ public function __construct($file, $mode = 'r', $options = array())
+ {
+ $this->PEAR('Net_LDAP2_Error'); // default error class
+
+ // First, parse options
+ // todo: maybe implement further checks on possible values
+ foreach ($options as $option => $value) {
+ if (!array_key_exists($option, $this->_options)) {
+ $this->dropError('Net_LDAP2_LDIF error: option '.$option.' not known!');
+ return;
+ } else {
+ $this->_options[$option] = strtolower($value);
+ }
+ }
+
+ // setup LDIF class
+ $this->version($this->_options['version']);
+
+ // setup file mode
+ if (!preg_match('/^[rwa]\+?$/', $mode)) {
+ $this->dropError('Net_LDAP2_LDIF error: file mode '.$mode.' not supported!');
+ } else {
+ $this->_mode = $mode;
+
+ // setup filehandle
+ if (is_resource($file)) {
+ // TODO: checks on mode possible?
+ $this->_FH =& $file;
+ } else {
+ $imode = substr($this->_mode, 0, 1);
+ if ($imode == 'r') {
+ if (!file_exists($file)) {
+ $this->dropError('Unable to open '.$file.' for read: file not found');
+ $this->_mode = false;
+ }
+ if (!is_readable($file)) {
+ $this->dropError('Unable to open '.$file.' for read: permission denied');
+ $this->_mode = false;
+ }
+ }
+
+ if (($imode == 'w' || $imode == 'a')) {
+ if (file_exists($file)) {
+ if (!is_writable($file)) {
+ $this->dropError('Unable to open '.$file.' for write: permission denied');
+ $this->_mode = false;
+ }
+ } else {
+ if (!@touch($file)) {
+ $this->dropError('Unable to create '.$file.' for write: permission denied');
+ $this->_mode = false;
+ }
+ }
+ }
+
+ if ($this->_mode) {
+ $this->_FH = @fopen($file, $this->_mode);
+ if (false === $this->_FH) {
+ // Fallback; should never be reached if tests above are good enough!
+ $this->dropError('Net_LDAP2_LDIF error: Could not open file '.$file);
+ } else {
+ $this->_FH_opened = true;
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * Read one entry from the file and return it as a Net::LDAP::Entry object.
+ *
+ * @return Net_LDAP2_Entry
+ */
+ public function read_entry()
+ {
+ // read fresh lines, set them as current lines and create the entry
+ $attrs = $this->next_lines(true);
+ if (count($attrs) > 0) {
+ $this->_lines_cur = $attrs;
+ }
+ return $this->current_entry();
+ }
+
+ /**
+ * Returns true when the end of the file is reached.
+ *
+ * @return boolean
+ */
+ public function eof()
+ {
+ return feof($this->_FH);
+ }
+
+ /**
+ * Write the entry or entries to the LDIF file.
+ *
+ * If you want to build an LDIF file containing several entries AND
+ * you want to call write_entry() several times, you must open the filehandle
+ * in append mode ("a"), otherwise you will always get the last entry only.
+ *
+ * @param Net_LDAP2_Entry|array $entries Entry or array of entries
+ *
+ * @return void
+ * @todo implement operations on whole entries (adding a whole entry)
+ */
+ public function write_entry($entries)
+ {
+ if (!is_array($entries)) {
+ $entries = array($entries);
+ }
+
+ foreach ($entries as $entry) {
+ $this->_entrynum++;
+ if (!$entry instanceof Net_LDAP2_Entry) {
+ $this->dropError('Net_LDAP2_LDIF error: entry '.$this->_entrynum.' is not an Net_LDAP2_Entry object');
+ } else {
+ if ($this->_options['change']) {
+ // LDIF change mode
+ // fetch change information from entry
+ $entry_attrs_changes = $entry->getChanges();
+ $num_of_changes = count($entry_attrs_changes['add'])
+ + count($entry_attrs_changes['replace'])
+ + count($entry_attrs_changes['delete']);
+
+ $is_changed = ($num_of_changes > 0 || $entry->willBeDeleted() || $entry->willBeMoved());
+
+ // write version if not done yet
+ // also write DN of entry
+ if ($is_changed) {
+ if (!$this->_version_written) {
+ $this->write_version();
+ }
+ $this->writeDN($entry->currentDN());
+ }
+
+ // process changes
+ // TODO: consider DN add!
+ if ($entry->willBeDeleted()) {
+ $this->writeLine("changetype: delete".PHP_EOL);
+ } elseif ($entry->willBeMoved()) {
+ $this->writeLine("changetype: modrdn".PHP_EOL);
+ $olddn = Net_LDAP2_Util::ldap_explode_dn($entry->currentDN(), array('casefold' => 'none')); // maybe gives a bug if using multivalued RDNs
+ $oldrdn = array_shift($olddn);
+ $oldparent = implode(',', $olddn);
+ $newdn = Net_LDAP2_Util::ldap_explode_dn($entry->dn(), array('casefold' => 'none')); // maybe gives a bug if using multivalued RDNs
+ $rdn = array_shift($newdn);
+ $parent = implode(',', $newdn);
+ $this->writeLine("newrdn: ".$rdn.PHP_EOL);
+ $this->writeLine("deleteoldrdn: 1".PHP_EOL);
+ if ($parent !== $oldparent) {
+ $this->writeLine("newsuperior: ".$parent.PHP_EOL);
+ }
+ // TODO: What if the entry has attribute changes as well?
+ // I think we should check for that and make a dummy
+ // entry with the changes that is written to the LDIF file
+ } elseif ($num_of_changes > 0) {
+ // write attribute change data
+ $this->writeLine("changetype: modify".PHP_EOL);
+ foreach ($entry_attrs_changes as $changetype => $entry_attrs) {
+ foreach ($entry_attrs as $attr_name => $attr_values) {
+ $this->writeLine("$changetype: $attr_name".PHP_EOL);
+ if ($attr_values !== null) $this->writeAttribute($attr_name, $attr_values, $changetype);
+ $this->writeLine("-".PHP_EOL);
+ }
+ }
+ }
+
+ // finish this entrys data if we had changes
+ if ($is_changed) {
+ $this->finishEntry();
+ }
+ } else {
+ // LDIF-content mode
+ // fetch attributes for further processing
+ $entry_attrs = $entry->getValues();
+
+ // sort and put objectclass-attrs to first position
+ if ($this->_options['sort']) {
+ ksort($entry_attrs);
+ if (array_key_exists('objectclass', $entry_attrs)) {
+ $oc = $entry_attrs['objectclass'];
+ unset($entry_attrs['objectclass']);
+ $entry_attrs = array_merge(array('objectclass' => $oc), $entry_attrs);
+ }
+ }
+
+ // write data
+ if (!$this->_version_written) {
+ $this->write_version();
+ }
+ $this->writeDN($entry->dn());
+ foreach ($entry_attrs as $attr_name => $attr_values) {
+ $this->writeAttribute($attr_name, $attr_values);
+ }
+ $this->finishEntry();
+ }
+ }
+ }
+ }
+
+ /**
+ * Write version to LDIF
+ *
+ * If the object's version is defined, this method allows to explicitely write the version before an entry is written.
+ * If not called explicitely, it gets called automatically when writing the first entry.
+ *
+ * @return void
+ */
+ public function write_version()
+ {
+ $this->_version_written = true;
+ if (!is_null($this->version())) {
+ return $this->writeLine('version: '.$this->version().PHP_EOL, 'Net_LDAP2_LDIF error: unable to write version');
+ }
+ }
+
+ /**
+ * Get or set LDIF version
+ *
+ * If called without arguments it returns the version of the LDIF file or NULL if no version has been set.
+ * If called with an argument it sets the LDIF version to VERSION.
+ * According to RFC 2849 currently the only legal value for VERSION is 1.
+ *
+ * @param int $version (optional) LDIF version to set
+ *
+ * @return int
+ */
+ public function version($version = null)
+ {
+ if ($version !== null) {
+ if ($version != 1) {
+ $this->dropError('Net_LDAP2_LDIF error: illegal LDIF version set');
+ } else {
+ $this->_options['version'] = $version;
+ }
+ }
+ return $this->_options['version'];
+ }
+
+ /**
+ * Returns the file handle the Net_LDAP2_LDIF object reads from or writes to.
+ *
+ * You can, for example, use this to fetch the content of the LDIF file yourself
+ *
+ * @return null|resource
+ */
+ public function &handle()
+ {
+ if (!is_resource($this->_FH)) {
+ $this->dropError('Net_LDAP2_LDIF error: invalid file resource');
+ $null = null;
+ return $null;
+ } else {
+ return $this->_FH;
+ }
+ }
+
+ /**
+ * Clean up
+ *
+ * This method signals that the LDIF object is no longer needed.
+ * You can use this to free up some memory and close the file handle.
+ * The file handle is only closed, if it was opened from Net_LDAP2_LDIF.
+ *
+ * @return void
+ */
+ public function done()
+ {
+ // close FH if we opened it
+ if ($this->_FH_opened) {
+ fclose($this->handle());
+ }
+
+ // free variables
+ foreach (get_object_vars($this) as $name => $value) {
+ unset($this->$name);
+ }
+ }
+
+ /**
+ * Returns last error message if error was found.
+ *
+ * Example:
+ * <code>
+ * $ldif->someAction();
+ * if ($ldif->error()) {
+ * echo "Error: ".$ldif->error()." at input line: ".$ldif->error_lines();
+ * }
+ * </code>
+ *
+ * @param boolean $as_string If set to true, only the message is returned
+ *
+ * @return false|Net_LDAP2_Error
+ */
+ public function error($as_string = false)
+ {
+ if (Net_LDAP2::isError($this->_error['error'])) {
+ return ($as_string)? $this->_error['error']->getMessage() : $this->_error['error'];
+ } else {
+ return false;
+ }
+ }
+
+ /**
+ * Returns lines that resulted in error.
+ *
+ * Perl returns an array of faulty lines in list context,
+ * but we always just return an int because of PHPs language.
+ *
+ * @return int
+ */
+ public function error_lines()
+ {
+ return $this->_error['line'];
+ }
+
+ /**
+ * Returns the current Net::LDAP::Entry object.
+ *
+ * @return Net_LDAP2_Entry|false
+ */
+ public function current_entry()
+ {
+ return $this->parseLines($this->current_lines());
+ }
+
+ /**
+ * Parse LDIF lines of one entry into an Net_LDAP2_Entry object
+ *
+ * @param array $lines LDIF lines for one entry
+ *
+ * @return Net_LDAP2_Entry|false Net_LDAP2_Entry object for those lines
+ * @todo what about file inclusions and urls? "jpegphoto:< file:///usr/local/directory/photos/fiona.jpg"
+ */
+ public function parseLines($lines)
+ {
+ // parse lines into an array of attributes and build the entry
+ $attributes = array();
+ $dn = false;
+ foreach ($lines as $line) {
+ if (preg_match('/^(\w+)(:|::|:<)\s(.+)$/', $line, $matches)) {
+ $attr =& $matches[1];
+ $delim =& $matches[2];
+ $data =& $matches[3];
+
+ if ($delim == ':') {
+ // normal data
+ $attributes[$attr][] = $data;
+ } elseif ($delim == '::') {
+ // base64 data
+ $attributes[$attr][] = base64_decode($data);
+ } elseif ($delim == ':<') {
+ // file inclusion
+ // TODO: Is this the job of the LDAP-client or the server?
+ $this->dropError('File inclusions are currently not supported');
+ //$attributes[$attr][] = ...;
+ } else {
+ // since the pattern above, the delimeter cannot be something else.
+ $this->dropError('Net_LDAP2_LDIF parsing error: invalid syntax at parsing entry line: '.$line);
+ continue;
+ }
+
+ if (strtolower($attr) == 'dn') {
+ // DN line detected
+ $dn = $attributes[$attr][0]; // save possibly decoded DN
+ unset($attributes[$attr]); // remove wrongly added "dn: " attribute
+ }
+ } else {
+ // line not in "attr: value" format -> ignore
+ // maybe we should rise an error here, but this should be covered by
+ // next_lines() already. A problem arises, if users try to feed data of
+ // several entries to this method - the resulting entry will
+ // get wrong attributes. However, this is already mentioned in the
+ // methods documentation above.
+ }
+ }
+
+ if (false === $dn) {
+ $this->dropError('Net_LDAP2_LDIF parsing error: unable to detect DN for entry');
+ return false;
+ } else {
+ $newentry = Net_LDAP2_Entry::createFresh($dn, $attributes);
+ return $newentry;
+ }
+ }
+
+ /**
+ * Returns the lines that generated the current Net::LDAP::Entry object.
+ *
+ * Note that this returns an empty array if no lines have been read so far.
+ *
+ * @return array Array of lines
+ */
+ public function current_lines()
+ {
+ return $this->_lines_cur;
+ }
+
+ /**
+ * Returns the lines that will generate the next Net::LDAP::Entry object.
+ *
+ * If you set $force to TRUE then you can iterate over the lines that build
+ * up entries manually. Otherwise, iterating is done using {@link read_entry()}.
+ * Force will move the file pointer forward, thus returning the next entries lines.
+ *
+ * Wrapped lines will be unwrapped. Comments are stripped.
+ *
+ * @param boolean $force Set this to true if you want to iterate over the lines manually
+ *
+ * @return array
+ */
+ public function next_lines($force = false)
+ {
+ // if we already have those lines, just return them, otherwise read
+ if (count($this->_lines_next) == 0 || $force) {
+ $this->_lines_next = array(); // empty in case something was left (if used $force)
+ $entry_done = false;
+ $fh = &$this->handle();
+ $commentmode = false; // if we are in an comment, for wrapping purposes
+ $datalines_read = 0; // how many lines with data we have read
+
+ while (!$entry_done && !$this->eof()) {
+ $this->_input_line++;
+ // Read line. Remove line endings, we want only data;
+ // this is okay since ending spaces should be encoded
+ $data = rtrim(fgets($fh));
+ if ($data === false) {
+ // error only, if EOF not reached after fgets() call
+ if (!$this->eof()) {
+ $this->dropError('Net_LDAP2_LDIF error: error reading from file at input line '.$this->_input_line, $this->_input_line);
+ }
+ break;
+ } else {
+ if (count($this->_lines_next) > 0 && preg_match('/^$/', $data)) {
+ // Entry is finished if we have an empty line after we had data
+ $entry_done = true;
+
+ // Look ahead if the next EOF is nearby. Comments and empty
+ // lines at the file end may cause problems otherwise
+ $current_pos = ftell($fh);
+ $data = fgets($fh);
+ while (!feof($fh)) {
+ if (preg_match('/^\s*$/', $data) || preg_match('/^#/', $data)) {
+ // only empty lines or comments, continue to seek
+ // TODO: Known bug: Wrappings for comments are okay but are treaten as
+ // error, since we do not honor comment mode here.
+ // This should be a very theoretically case, however
+ // i am willing to fix this if really necessary.
+ $this->_input_line++;
+ $current_pos = ftell($fh);
+ $data = fgets($fh);
+ } else {
+ // Data found if non emtpy line and not a comment!!
+ // Rewind to position prior last read and stop lookahead
+ fseek($fh, $current_pos);
+ break;
+ }
+ }
+ // now we have either the file pointer at the beginning of
+ // a new data position or at the end of file causing feof() to return true
+
+ } else {
+ // build lines
+ if (preg_match('/^version:\s(.+)$/', $data, $match)) {
+ // version statement, set version
+ $this->version($match[1]);
+ } elseif (preg_match('/^\w+::?\s.+$/', $data)) {
+ // normal attribute: add line
+ $commentmode = false;
+ $this->_lines_next[] = trim($data);
+ $datalines_read++;
+ } elseif (preg_match('/^\s(.+)$/', $data, $matches)) {
+ // wrapped data: unwrap if not in comment mode
+ if (!$commentmode) {
+ if ($datalines_read == 0) {
+ // first line of entry: wrapped data is illegal
+ $this->dropError('Net_LDAP2_LDIF error: illegal wrapping at input line '.$this->_input_line, $this->_input_line);
+ } else {
+ $last = array_pop($this->_lines_next);
+ $last = $last.trim($matches[1]);
+ $this->_lines_next[] = $last;
+ $datalines_read++;
+ }
+ }
+ } elseif (preg_match('/^#/', $data)) {
+ // LDIF comments
+ $commentmode = true;
+ } elseif (preg_match('/^\s*$/', $data)) {
+ // empty line but we had no data for this
+ // entry, so just ignore this line
+ $commentmode = false;
+ } else {
+ $this->dropError('Net_LDAP2_LDIF error: invalid syntax at input line '.$this->_input_line, $this->_input_line);
+ continue;
+ }
+
+ }
+ }
+ }
+ }
+ return $this->_lines_next;
+ }
+
+ /**
+ * Convert an attribute and value to LDIF string representation
+ *
+ * It honors correct encoding of values according to RFC 2849.
+ * Line wrapping will occur at the configured maximum but only if
+ * the value is greater than 40 chars.
+ *
+ * @param string $attr_name Name of the attribute
+ * @param string $attr_value Value of the attribute
+ *
+ * @access protected
+ * @return string LDIF string for that attribute and value
+ */
+ protected function convertAttribute($attr_name, $attr_value)
+ {
+ // Handle empty attribute or process
+ if (strlen($attr_value) == 0) {
+ $attr_value = " ";
+ } else {
+ $base64 = false;
+ // ASCII-chars that are NOT safe for the
+ // start and for being inside the value.
+ // These are the int values of those chars.
+ $unsafe_init = array(0, 10, 13, 32, 58, 60);
+ $unsafe = array(0, 10, 13);
+
+ // Test for illegal init char
+ $init_ord = ord(substr($attr_value, 0, 1));
+ if ($init_ord > 127 || in_array($init_ord, $unsafe_init)) {
+ $base64 = true;
+ }
+
+ // Test for illegal content char
+ for ($i = 0; $i < strlen($attr_value); $i++) {
+ $char_ord = ord(substr($attr_value, $i, 1));
+ if ($char_ord > 127 || in_array($char_ord, $unsafe)) {
+ $base64 = true;
+ }
+ }
+
+ // Test for ending space
+ if (substr($attr_value, -1) == ' ') {
+ $base64 = true;
+ }
+
+ // If converting is needed, do it
+ // Either we have some special chars or a matching "raw" regex
+ if ($base64 || ($this->_options['raw'] && preg_match($this->_options['raw'], $attr_name))) {
+ $attr_name .= ':';
+ $attr_value = base64_encode($attr_value);
+ }
+
+ // Lowercase attr names if requested
+ if ($this->_options['lowercase']) $attr_name = strtolower($attr_name);
+
+ // Handle line wrapping
+ if ($this->_options['wrap'] > 40 && strlen($attr_value) > $this->_options['wrap']) {
+ $attr_value = wordwrap($attr_value, $this->_options['wrap'], PHP_EOL." ", true);
+ }
+ }
+
+ return $attr_name.': '.$attr_value;
+ }
+
+ /**
+ * Convert an entries DN to LDIF string representation
+ *
+ * It honors correct encoding of values according to RFC 2849.
+ *
+ * @param string $dn UTF8-Encoded DN
+ *
+ * @access protected
+ * @return string LDIF string for that DN
+ * @todo I am not sure, if the UTF8 stuff is correctly handled right now
+ */
+ protected function convertDN($dn)
+ {
+ $base64 = false;
+ // ASCII-chars that are NOT safe for the
+ // start and for being inside the dn.
+ // These are the int values of those chars.
+ $unsafe_init = array(0, 10, 13, 32, 58, 60);
+ $unsafe = array(0, 10, 13);
+
+ // Test for illegal init char
+ $init_ord = ord(substr($dn, 0, 1));
+ if ($init_ord >= 127 || in_array($init_ord, $unsafe_init)) {
+ $base64 = true;
+ }
+
+ // Test for illegal content char
+ for ($i = 0; $i < strlen($dn); $i++) {
+ $char = substr($dn, $i, 1);
+ if (ord($char) >= 127 || in_array($init_ord, $unsafe)) {
+ $base64 = true;
+ }
+ }
+
+ // Test for ending space
+ if (substr($dn, -1) == ' ') {
+ $base64 = true;
+ }
+
+ // if converting is needed, do it
+ return ($base64)? 'dn:: '.base64_encode($dn) : 'dn: '.$dn;
+ }
+
+ /**
+ * Writes an attribute to the filehandle
+ *
+ * @param string $attr_name Name of the attribute
+ * @param string|array $attr_values Single attribute value or array with attribute values
+ *
+ * @access protected
+ * @return void
+ */
+ protected function writeAttribute($attr_name, $attr_values)
+ {
+ // write out attribute content
+ if (!is_array($attr_values)) {
+ $attr_values = array($attr_values);
+ }
+ foreach ($attr_values as $attr_val) {
+ $line = $this->convertAttribute($attr_name, $attr_val).PHP_EOL;
+ $this->writeLine($line, 'Net_LDAP2_LDIF error: unable to write attribute '.$attr_name.' of entry '.$this->_entrynum);
+ }
+ }
+
+ /**
+ * Writes a DN to the filehandle
+ *
+ * @param string $dn DN to write
+ *
+ * @access protected
+ * @return void
+ */
+ protected function writeDN($dn)
+ {
+ // prepare DN
+ if ($this->_options['encode'] == 'base64') {
+ $dn = $this->convertDN($dn).PHP_EOL;
+ } elseif ($this->_options['encode'] == 'canonical') {
+ $dn = Net_LDAP2_Util::canonical_dn($dn, array('casefold' => 'none')).PHP_EOL;
+ } else {
+ $dn = $dn.PHP_EOL;
+ }
+ $this->writeLine($dn, 'Net_LDAP2_LDIF error: unable to write DN of entry '.$this->_entrynum);
+ }
+
+ /**
+ * Finishes an LDIF entry
+ *
+ * @access protected
+ * @return void
+ */
+ protected function finishEntry()
+ {
+ $this->writeLine(PHP_EOL, 'Net_LDAP2_LDIF error: unable to close entry '.$this->_entrynum);
+ }
+
+ /**
+ * Just write an arbitary line to the filehandle
+ *
+ * @param string $line Content to write
+ * @param string $error If error occurs, drop this message
+ *
+ * @access protected
+ * @return true|false
+ */
+ protected function writeLine($line, $error = 'Net_LDAP2_LDIF error: unable to write to filehandle')
+ {
+ if (is_resource($this->handle()) && fwrite($this->handle(), $line, strlen($line)) === false) {
+ $this->dropError($error);
+ return false;
+ } else {
+ return true;
+ }
+ }
+
+ /**
+ * Optionally raises an error and pushes the error on the error cache
+ *
+ * @param string $msg Errortext
+ * @param int $line Line in the LDIF that caused the error
+ *
+ * @access protected
+ * @return void
+ */
+ protected function dropError($msg, $line = null)
+ {
+ $this->_error['error'] = new Net_LDAP2_Error($msg);
+ if ($line !== null) $this->_error['line'] = $line;
+
+ if ($this->_options['onerror'] == 'die') {
+ die($msg.PHP_EOL);
+ } elseif ($this->_options['onerror'] == 'warn') {
+ echo $msg.PHP_EOL;
+ }
+ }
+}
+?>
diff --git a/extlib/Net/LDAP2/RootDSE.php b/extlib/Net/LDAP2/RootDSE.php
new file mode 100644
index 000000000..8dc81fd4f
--- /dev/null
+++ b/extlib/Net/LDAP2/RootDSE.php
@@ -0,0 +1,240 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2_RootDSE interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Jan Wagner <wagner@netsols.de>
+* @copyright 2009 Jan Wagner
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: RootDSE.php 286718 2009-08-03 07:30:49Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* Includes
+*/
+require_once 'PEAR.php';
+
+/**
+* Getting the rootDSE entry of a LDAP server
+*
+* @category Net
+* @package Net_LDAP2
+* @author Jan Wagner <wagner@netsols.de>
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP22/
+*/
+class Net_LDAP2_RootDSE extends PEAR
+{
+ /**
+ * @access protected
+ * @var object Net_LDAP2_Entry
+ **/
+ protected $_entry;
+
+ /**
+ * Class constructor
+ *
+ * @param Net_LDAP2_Entry &$entry Net_LDAP2_Entry object of the RootDSE
+ */
+ protected function __construct(&$entry)
+ {
+ $this->_entry = $entry;
+ }
+
+ /**
+ * Fetches a RootDSE object from an LDAP connection
+ *
+ * @param Net_LDAP2 $ldap Directory from which the RootDSE should be fetched
+ * @param array $attrs Array of attributes to search for
+ *
+ * @access static
+ * @return Net_LDAP2_RootDSE|Net_LDAP2_Error
+ */
+ public static function fetch($ldap, $attrs = null)
+ {
+ if (!$ldap instanceof Net_LDAP2) {
+ return PEAR::raiseError("Unable to fetch Schema: Parameter \$ldap must be a Net_LDAP2 object!");
+ }
+
+ if (is_array($attrs) && count($attrs) > 0 ) {
+ $attributes = $attrs;
+ } else {
+ $attributes = array('vendorName',
+ 'vendorVersion',
+ 'namingContexts',
+ 'altServer',
+ 'supportedExtension',
+ 'supportedControl',
+ 'supportedSASLMechanisms',
+ 'supportedLDAPVersion',
+ 'subschemaSubentry' );
+ }
+ $result = $ldap->search('', '(objectClass=*)', array('attributes' => $attributes, 'scope' => 'base'));
+ if (self::isError($result)) {
+ return $result;
+ }
+ $entry = $result->shiftEntry();
+ if (false === $entry) {
+ return PEAR::raiseError('Could not fetch RootDSE entry');
+ }
+ $ret = new Net_LDAP2_RootDSE($entry);
+ return $ret;
+ }
+
+ /**
+ * Gets the requested attribute value
+ *
+ * Same usuage as {@link Net_LDAP2_Entry::getValue()}
+ *
+ * @param string $attr Attribute name
+ * @param array $options Array of options
+ *
+ * @access public
+ * @return mixed Net_LDAP2_Error object or attribute values
+ * @see Net_LDAP2_Entry::get_value()
+ */
+ public function getValue($attr = '', $options = '')
+ {
+ return $this->_entry->get_value($attr, $options);
+ }
+
+ /**
+ * Alias function of getValue() for perl-ldap interface
+ *
+ * @see getValue()
+ * @return mixed
+ */
+ public function get_value()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array( &$this, 'getValue' ), $args);
+ }
+
+ /**
+ * Determines if the extension is supported
+ *
+ * @param array $oids Array of oids to check
+ *
+ * @access public
+ * @return boolean
+ */
+ public function supportedExtension($oids)
+ {
+ return $this->checkAttr($oids, 'supportedExtension');
+ }
+
+ /**
+ * Alias function of supportedExtension() for perl-ldap interface
+ *
+ * @see supportedExtension()
+ * @return boolean
+ */
+ public function supported_extension()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array( &$this, 'supportedExtension'), $args);
+ }
+
+ /**
+ * Determines if the version is supported
+ *
+ * @param array $versions Versions to check
+ *
+ * @access public
+ * @return boolean
+ */
+ public function supportedVersion($versions)
+ {
+ return $this->checkAttr($versions, 'supportedLDAPVersion');
+ }
+
+ /**
+ * Alias function of supportedVersion() for perl-ldap interface
+ *
+ * @see supportedVersion()
+ * @return boolean
+ */
+ public function supported_version()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array(&$this, 'supportedVersion'), $args);
+ }
+
+ /**
+ * Determines if the control is supported
+ *
+ * @param array $oids Control oids to check
+ *
+ * @access public
+ * @return boolean
+ */
+ public function supportedControl($oids)
+ {
+ return $this->checkAttr($oids, 'supportedControl');
+ }
+
+ /**
+ * Alias function of supportedControl() for perl-ldap interface
+ *
+ * @see supportedControl()
+ * @return boolean
+ */
+ public function supported_control()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array(&$this, 'supportedControl' ), $args);
+ }
+
+ /**
+ * Determines if the sasl mechanism is supported
+ *
+ * @param array $mechlist SASL mechanisms to check
+ *
+ * @access public
+ * @return boolean
+ */
+ public function supportedSASLMechanism($mechlist)
+ {
+ return $this->checkAttr($mechlist, 'supportedSASLMechanisms');
+ }
+
+ /**
+ * Alias function of supportedSASLMechanism() for perl-ldap interface
+ *
+ * @see supportedSASLMechanism()
+ * @return boolean
+ */
+ public function supported_sasl_mechanism()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array(&$this, 'supportedSASLMechanism'), $args);
+ }
+
+ /**
+ * Checks for existance of value in attribute
+ *
+ * @param array $values values to check
+ * @param string $attr attribute name
+ *
+ * @access protected
+ * @return boolean
+ */
+ protected function checkAttr($values, $attr)
+ {
+ if (!is_array($values)) $values = array($values);
+
+ foreach ($values as $value) {
+ if (!@in_array($value, $this->get_value($attr, 'all'))) {
+ return false;
+ }
+ }
+ return true;
+ }
+}
+
+?>
diff --git a/extlib/Net/LDAP2/Schema.php b/extlib/Net/LDAP2/Schema.php
new file mode 100644
index 000000000..b590eabc5
--- /dev/null
+++ b/extlib/Net/LDAP2/Schema.php
@@ -0,0 +1,516 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2_Schema interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Jan Wagner <wagner@netsols.de>
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2009 Jan Wagner, Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: Schema.php 286718 2009-08-03 07:30:49Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+* @todo see the comment at the end of the file
+*/
+
+/**
+* Includes
+*/
+require_once 'PEAR.php';
+
+/**
+* Syntax definitions
+*
+* Please don't forget to add binary attributes to isBinary() below
+* to support proper value fetching from Net_LDAP2_Entry
+*/
+define('NET_LDAP2_SYNTAX_BOOLEAN', '1.3.6.1.4.1.1466.115.121.1.7');
+define('NET_LDAP2_SYNTAX_DIRECTORY_STRING', '1.3.6.1.4.1.1466.115.121.1.15');
+define('NET_LDAP2_SYNTAX_DISTINGUISHED_NAME', '1.3.6.1.4.1.1466.115.121.1.12');
+define('NET_LDAP2_SYNTAX_INTEGER', '1.3.6.1.4.1.1466.115.121.1.27');
+define('NET_LDAP2_SYNTAX_JPEG', '1.3.6.1.4.1.1466.115.121.1.28');
+define('NET_LDAP2_SYNTAX_NUMERIC_STRING', '1.3.6.1.4.1.1466.115.121.1.36');
+define('NET_LDAP2_SYNTAX_OID', '1.3.6.1.4.1.1466.115.121.1.38');
+define('NET_LDAP2_SYNTAX_OCTET_STRING', '1.3.6.1.4.1.1466.115.121.1.40');
+
+/**
+* Load an LDAP Schema and provide information
+*
+* This class takes a Subschema entry, parses this information
+* and makes it available in an array. Most of the code has been
+* inspired by perl-ldap( http://perl-ldap.sourceforge.net).
+* You will find portions of their implementation in here.
+*
+* @category Net
+* @package Net_LDAP2
+* @author Jan Wagner <wagner@netsols.de>
+* @author Benedikt Hallinger <beni@php.net>
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP22/
+*/
+class Net_LDAP2_Schema extends PEAR
+{
+ /**
+ * Map of entry types to ldap attributes of subschema entry
+ *
+ * @access public
+ * @var array
+ */
+ public $types = array(
+ 'attribute' => 'attributeTypes',
+ 'ditcontentrule' => 'dITContentRules',
+ 'ditstructurerule' => 'dITStructureRules',
+ 'matchingrule' => 'matchingRules',
+ 'matchingruleuse' => 'matchingRuleUse',
+ 'nameform' => 'nameForms',
+ 'objectclass' => 'objectClasses',
+ 'syntax' => 'ldapSyntaxes'
+ );
+
+ /**
+ * Array of entries belonging to this type
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_attributeTypes = array();
+ protected $_matchingRules = array();
+ protected $_matchingRuleUse = array();
+ protected $_ldapSyntaxes = array();
+ protected $_objectClasses = array();
+ protected $_dITContentRules = array();
+ protected $_dITStructureRules = array();
+ protected $_nameForms = array();
+
+
+ /**
+ * hash of all fetched oids
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_oids = array();
+
+ /**
+ * Tells if the schema is initialized
+ *
+ * @access protected
+ * @var boolean
+ * @see parse(), get()
+ */
+ protected $_initialized = false;
+
+
+ /**
+ * Constructor of the class
+ *
+ * @access protected
+ */
+ protected function __construct()
+ {
+ $this->PEAR('Net_LDAP2_Error'); // default error class
+ }
+
+ /**
+ * Fetch the Schema from an LDAP connection
+ *
+ * @param Net_LDAP2 $ldap LDAP connection
+ * @param string $dn (optional) Subschema entry dn
+ *
+ * @access public
+ * @return Net_LDAP2_Schema|NET_LDAP2_Error
+ */
+ public function fetch($ldap, $dn = null)
+ {
+ if (!$ldap instanceof Net_LDAP2) {
+ return PEAR::raiseError("Unable to fetch Schema: Parameter \$ldap must be a Net_LDAP2 object!");
+ }
+
+ $schema_o = new Net_LDAP2_Schema();
+
+ if (is_null($dn)) {
+ // get the subschema entry via root dse
+ $dse = $ldap->rootDSE(array('subschemaSubentry'));
+ if (false == Net_LDAP2::isError($dse)) {
+ $base = $dse->getValue('subschemaSubentry', 'single');
+ if (!Net_LDAP2::isError($base)) {
+ $dn = $base;
+ }
+ }
+ }
+
+ // Support for buggy LDAP servers (e.g. Siemens DirX 6.x) that incorrectly
+ // call this entry subSchemaSubentry instead of subschemaSubentry.
+ // Note the correct case/spelling as per RFC 2251.
+ if (is_null($dn)) {
+ // get the subschema entry via root dse
+ $dse = $ldap->rootDSE(array('subSchemaSubentry'));
+ if (false == Net_LDAP2::isError($dse)) {
+ $base = $dse->getValue('subSchemaSubentry', 'single');
+ if (!Net_LDAP2::isError($base)) {
+ $dn = $base;
+ }
+ }
+ }
+
+ // Final fallback case where there is no subschemaSubentry attribute
+ // in the root DSE (this is a bug for an LDAP v3 server so report this
+ // to your LDAP vendor if you get this far).
+ if (is_null($dn)) {
+ $dn = 'cn=Subschema';
+ }
+
+ // fetch the subschema entry
+ $result = $ldap->search($dn, '(objectClass=*)',
+ array('attributes' => array_values($schema_o->types),
+ 'scope' => 'base'));
+ if (Net_LDAP2::isError($result)) {
+ return $result;
+ }
+
+ $entry = $result->shiftEntry();
+ if (!$entry instanceof Net_LDAP2_Entry) {
+ return PEAR::raiseError('Could not fetch Subschema entry');
+ }
+
+ $schema_o->parse($entry);
+ return $schema_o;
+ }
+
+ /**
+ * Return a hash of entries for the given type
+ *
+ * Returns a hash of entry for th givene type. Types may be:
+ * objectclasses, attributes, ditcontentrules, ditstructurerules, matchingrules,
+ * matchingruleuses, nameforms, syntaxes
+ *
+ * @param string $type Type to fetch
+ *
+ * @access public
+ * @return array|Net_LDAP2_Error Array or Net_LDAP2_Error
+ */
+ public function &getAll($type)
+ {
+ $map = array('objectclasses' => &$this->_objectClasses,
+ 'attributes' => &$this->_attributeTypes,
+ 'ditcontentrules' => &$this->_dITContentRules,
+ 'ditstructurerules' => &$this->_dITStructureRules,
+ 'matchingrules' => &$this->_matchingRules,
+ 'matchingruleuses' => &$this->_matchingRuleUse,
+ 'nameforms' => &$this->_nameForms,
+ 'syntaxes' => &$this->_ldapSyntaxes );
+
+ $key = strtolower($type);
+ $ret = ((key_exists($key, $map)) ? $map[$key] : PEAR::raiseError("Unknown type $type"));
+ return $ret;
+ }
+
+ /**
+ * Return a specific entry
+ *
+ * @param string $type Type of name
+ * @param string $name Name or OID to fetch
+ *
+ * @access public
+ * @return mixed Entry or Net_LDAP2_Error
+ */
+ public function &get($type, $name)
+ {
+ if ($this->_initialized) {
+ $type = strtolower($type);
+ if (false == key_exists($type, $this->types)) {
+ return PEAR::raiseError("No such type $type");
+ }
+
+ $name = strtolower($name);
+ $type_var = &$this->{'_' . $this->types[$type]};
+
+ if (key_exists($name, $type_var)) {
+ return $type_var[$name];
+ } elseif (key_exists($name, $this->_oids) && $this->_oids[$name]['type'] == $type) {
+ return $this->_oids[$name];
+ } else {
+ return PEAR::raiseError("Could not find $type $name");
+ }
+ } else {
+ $return = null;
+ return $return;
+ }
+ }
+
+
+ /**
+ * Fetches attributes that MAY be present in the given objectclass
+ *
+ * @param string $oc Name or OID of objectclass
+ *
+ * @access public
+ * @return array|Net_LDAP2_Error Array with attributes or Net_LDAP2_Error
+ */
+ public function may($oc)
+ {
+ return $this->_getAttr($oc, 'may');
+ }
+
+ /**
+ * Fetches attributes that MUST be present in the given objectclass
+ *
+ * @param string $oc Name or OID of objectclass
+ *
+ * @access public
+ * @return array|Net_LDAP2_Error Array with attributes or Net_LDAP2_Error
+ */
+ public function must($oc)
+ {
+ return $this->_getAttr($oc, 'must');
+ }
+
+ /**
+ * Fetches the given attribute from the given objectclass
+ *
+ * @param string $oc Name or OID of objectclass
+ * @param string $attr Name of attribute to fetch
+ *
+ * @access protected
+ * @return array|Net_LDAP2_Error The attribute or Net_LDAP2_Error
+ */
+ protected function _getAttr($oc, $attr)
+ {
+ $oc = strtolower($oc);
+ if (key_exists($oc, $this->_objectClasses) && key_exists($attr, $this->_objectClasses[$oc])) {
+ return $this->_objectClasses[$oc][$attr];
+ } elseif (key_exists($oc, $this->_oids) &&
+ $this->_oids[$oc]['type'] == 'objectclass' &&
+ key_exists($attr, $this->_oids[$oc])) {
+ return $this->_oids[$oc][$attr];
+ } else {
+ return PEAR::raiseError("Could not find $attr attributes for $oc ");
+ }
+ }
+
+ /**
+ * Returns the name(s) of the immediate superclass(es)
+ *
+ * @param string $oc Name or OID of objectclass
+ *
+ * @access public
+ * @return array|Net_LDAP2_Error Array of names or Net_LDAP2_Error
+ */
+ public function superclass($oc)
+ {
+ $o = $this->get('objectclass', $oc);
+ if (Net_LDAP2::isError($o)) {
+ return $o;
+ }
+ return (key_exists('sup', $o) ? $o['sup'] : array());
+ }
+
+ /**
+ * Parses the schema of the given Subschema entry
+ *
+ * @param Net_LDAP2_Entry &$entry Subschema entry
+ *
+ * @access public
+ * @return void
+ */
+ public function parse(&$entry)
+ {
+ foreach ($this->types as $type => $attr) {
+ // initialize map type to entry
+ $type_var = '_' . $attr;
+ $this->{$type_var} = array();
+
+ // get values for this type
+ if ($entry->exists($attr)) {
+ $values = $entry->getValue($attr);
+ if (is_array($values)) {
+ foreach ($values as $value) {
+
+ unset($schema_entry); // this was a real mess without it
+
+ // get the schema entry
+ $schema_entry = $this->_parse_entry($value);
+
+ // set the type
+ $schema_entry['type'] = $type;
+
+ // save a ref in $_oids
+ $this->_oids[$schema_entry['oid']] = &$schema_entry;
+
+ // save refs for all names in type map
+ $names = $schema_entry['aliases'];
+ array_push($names, $schema_entry['name']);
+ foreach ($names as $name) {
+ $this->{$type_var}[strtolower($name)] = &$schema_entry;
+ }
+ }
+ }
+ }
+ }
+ $this->_initialized = true;
+ }
+
+ /**
+ * Parses an attribute value into a schema entry
+ *
+ * @param string $value Attribute value
+ *
+ * @access protected
+ * @return array|false Schema entry array or false
+ */
+ protected function &_parse_entry($value)
+ {
+ // tokens that have no value associated
+ $noValue = array('single-value',
+ 'obsolete',
+ 'collective',
+ 'no-user-modification',
+ 'abstract',
+ 'structural',
+ 'auxiliary');
+
+ // tokens that can have multiple values
+ $multiValue = array('must', 'may', 'sup');
+
+ $schema_entry = array('aliases' => array()); // initilization
+
+ $tokens = $this->_tokenize($value); // get an array of tokens
+
+ // remove surrounding brackets
+ if ($tokens[0] == '(') array_shift($tokens);
+ if ($tokens[count($tokens) - 1] == ')') array_pop($tokens); // -1 doesnt work on arrays :-(
+
+ $schema_entry['oid'] = array_shift($tokens); // first token is the oid
+
+ // cycle over the tokens until none are left
+ while (count($tokens) > 0) {
+ $token = strtolower(array_shift($tokens));
+ if (in_array($token, $noValue)) {
+ $schema_entry[$token] = 1; // single value token
+ } else {
+ // this one follows a string or a list if it is multivalued
+ if (($schema_entry[$token] = array_shift($tokens)) == '(') {
+ // this creates the list of values and cycles through the tokens
+ // until the end of the list is reached ')'
+ $schema_entry[$token] = array();
+ while ($tmp = array_shift($tokens)) {
+ if ($tmp == ')') break;
+ if ($tmp != '$') array_push($schema_entry[$token], $tmp);
+ }
+ }
+ // create a array if the value should be multivalued but was not
+ if (in_array($token, $multiValue) && !is_array($schema_entry[$token])) {
+ $schema_entry[$token] = array($schema_entry[$token]);
+ }
+ }
+ }
+ // get max length from syntax
+ if (key_exists('syntax', $schema_entry)) {
+ if (preg_match('/{(\d+)}/', $schema_entry['syntax'], $matches)) {
+ $schema_entry['max_length'] = $matches[1];
+ }
+ }
+ // force a name
+ if (empty($schema_entry['name'])) {
+ $schema_entry['name'] = $schema_entry['oid'];
+ }
+ // make one name the default and put the other ones into aliases
+ if (is_array($schema_entry['name'])) {
+ $aliases = $schema_entry['name'];
+ $schema_entry['name'] = array_shift($aliases);
+ $schema_entry['aliases'] = $aliases;
+ }
+ return $schema_entry;
+ }
+
+ /**
+ * Tokenizes the given value into an array of tokens
+ *
+ * @param string $value String to parse
+ *
+ * @access protected
+ * @return array Array of tokens
+ */
+ protected function _tokenize($value)
+ {
+ $tokens = array(); // array of tokens
+ $matches = array(); // matches[0] full pattern match, [1,2,3] subpatterns
+
+ // this one is taken from perl-ldap, modified for php
+ $pattern = "/\s* (?:([()]) | ([^'\s()]+) | '((?:[^']+|'[^\s)])*)') \s*/x";
+
+ /**
+ * This one matches one big pattern wherin only one of the three subpatterns matched
+ * We are interested in the subpatterns that matched. If it matched its value will be
+ * non-empty and so it is a token. Tokens may be round brackets, a string, or a string
+ * enclosed by '
+ */
+ preg_match_all($pattern, $value, $matches);
+
+ for ($i = 0; $i < count($matches[0]); $i++) { // number of tokens (full pattern match)
+ for ($j = 1; $j < 4; $j++) { // each subpattern
+ if (null != trim($matches[$j][$i])) { // pattern match in this subpattern
+ $tokens[$i] = trim($matches[$j][$i]); // this is the token
+ }
+ }
+ }
+ return $tokens;
+ }
+
+ /**
+ * Returns wether a attribute syntax is binary or not
+ *
+ * This method gets used by Net_LDAP2_Entry to decide which
+ * PHP function needs to be used to fetch the value in the
+ * proper format (e.g. binary or string)
+ *
+ * @param string $attribute The name of the attribute (eg.: 'sn')
+ *
+ * @access public
+ * @return boolean
+ */
+ public function isBinary($attribute)
+ {
+ $return = false; // default to false
+
+ // This list contains all syntax that should be treaten as
+ // containing binary values
+ // The Syntax Definitons go into constants at the top of this page
+ $syntax_binary = array(
+ NET_LDAP2_SYNTAX_OCTET_STRING,
+ NET_LDAP2_SYNTAX_JPEG
+ );
+
+ // Check Syntax
+ $attr_s = $this->get('attribute', $attribute);
+ if (Net_LDAP2::isError($attr_s)) {
+ // Attribute not found in schema
+ $return = false; // consider attr not binary
+ } elseif (isset($attr_s['syntax']) && in_array($attr_s['syntax'], $syntax_binary)) {
+ // Syntax is defined as binary in schema
+ $return = true;
+ } else {
+ // Syntax not defined as binary, or not found
+ // if attribute is a subtype, check superior attribute syntaxes
+ if (isset($attr_s['sup'])) {
+ foreach ($attr_s['sup'] as $superattr) {
+ $return = $this->isBinary($superattr);
+ if ($return) {
+ break; // stop checking parents since we are binary
+ }
+ }
+ }
+ }
+
+ return $return;
+ }
+
+ // [TODO] add method that allows us to see to which objectclasses a certain attribute belongs to
+ // it should return the result structured, e.g. sorted in "may" and "must". Optionally it should
+ // be able to return it just "flat", e.g. array_merge()d.
+ // We could use get_all() to achieve this easily, i think
+}
+?>
diff --git a/extlib/Net/LDAP2/SchemaCache.interface.php b/extlib/Net/LDAP2/SchemaCache.interface.php
new file mode 100644
index 000000000..e0c3094c4
--- /dev/null
+++ b/extlib/Net/LDAP2/SchemaCache.interface.php
@@ -0,0 +1,59 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2_SchemaCache interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2009 Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: SchemaCache.interface.php 286718 2009-08-03 07:30:49Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* Interface describing a custom schema cache object
+*
+* To implement a custom schema cache, one must implement this interface and
+* pass the instanciated object to Net_LDAP2s registerSchemaCache() method.
+*/
+interface Net_LDAP2_SchemaCache
+{
+ /**
+ * Return the schema object from the cache
+ *
+ * Net_LDAP2 will consider anything returned invalid, except
+ * a valid Net_LDAP2_Schema object.
+ * In case you return a Net_LDAP2_Error, this error will be routed
+ * to the return of the $ldap->schema() call.
+ * If you return something else, Net_LDAP2 will
+ * fetch a fresh Schema object from the LDAP server.
+ *
+ * You may want to implement a cache aging mechanism here too.
+ *
+ * @return Net_LDAP2_Schema|Net_LDAP2_Error|false
+ */
+ public function loadSchema();
+
+ /**
+ * Store a schema object in the cache
+ *
+ * This method will be called, if Net_LDAP2 has fetched a fresh
+ * schema object from LDAP and wants to init or refresh the cache.
+ *
+ * In case of errors you may return a Net_LDAP2_Error which will
+ * be routet to the client.
+ * Note that doing this prevents, that the schema object fetched from LDAP
+ * will be given back to the client, so only return errors if storing
+ * of the cache is something crucial (e.g. for doing something else with it).
+ * Normaly you dont want to give back errors in which case Net_LDAP2 needs to
+ * fetch the schema once per script run and instead use the error
+ * returned from loadSchema().
+ *
+ * @return true|Net_LDAP2_Error
+ */
+ public function storeSchema($schema);
+}
diff --git a/extlib/Net/LDAP2/Search.php b/extlib/Net/LDAP2/Search.php
new file mode 100644
index 000000000..de4fde122
--- /dev/null
+++ b/extlib/Net/LDAP2/Search.php
@@ -0,0 +1,614 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2_Search interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Tarjej Huse <tarjei@bergfald.no>
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2009 Tarjej Huse, Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: Search.php 286718 2009-08-03 07:30:49Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* Includes
+*/
+require_once 'PEAR.php';
+
+/**
+* Result set of an LDAP search
+*
+* @category Net
+* @package Net_LDAP2
+* @author Tarjej Huse <tarjei@bergfald.no>
+* @author Benedikt Hallinger <beni@php.net>
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP22/
+*/
+class Net_LDAP2_Search extends PEAR implements Iterator
+{
+ /**
+ * Search result identifier
+ *
+ * @access protected
+ * @var resource
+ */
+ protected $_search;
+
+ /**
+ * LDAP resource link
+ *
+ * @access protected
+ * @var resource
+ */
+ protected $_link;
+
+ /**
+ * Net_LDAP2 object
+ *
+ * A reference of the Net_LDAP2 object for passing to Net_LDAP2_Entry
+ *
+ * @access protected
+ * @var object Net_LDAP2
+ */
+ protected $_ldap;
+
+ /**
+ * Result entry identifier
+ *
+ * @access protected
+ * @var resource
+ */
+ protected $_entry = null;
+
+ /**
+ * The errorcode the search got
+ *
+ * Some errorcodes might be of interest, but might not be best handled as errors.
+ * examples: 4 - LDAP_SIZELIMIT_EXCEEDED - indicates a huge search.
+ * Incomplete results are returned. If you just want to check if there's anything in the search.
+ * than this is a point to handle.
+ * 32 - no such object - search here returns a count of 0.
+ *
+ * @access protected
+ * @var int
+ */
+ protected $_errorCode = 0; // if not set - sucess!
+
+ /**
+ * Cache for all entries already fetched from iterator interface
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_iteratorCache = array();
+
+ /**
+ * What attributes we searched for
+ *
+ * The $attributes array contains the names of the searched attributes and gets
+ * passed from $Net_LDAP2->search() so the Net_LDAP2_Search object can tell
+ * what attributes was searched for ({@link searchedAttrs())
+ *
+ * This variable gets set from the constructor and returned
+ * from {@link searchedAttrs()}
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_searchedAttrs = array();
+
+ /**
+ * Cache variable for storing entries fetched internally
+ *
+ * This currently is only used by {@link pop_entry()}
+ *
+ * @access protected
+ * @var array
+ */
+ protected $_entry_cache = false;
+
+ /**
+ * Constructor
+ *
+ * @param resource &$search Search result identifier
+ * @param Net_LDAP2|resource &$ldap Net_LDAP2 object or just a LDAP-Link resource
+ * @param array $attributes (optional) Array with searched attribute names. (see {@link $_searchedAttrs})
+ *
+ * @access public
+ */
+ public function __construct(&$search, &$ldap, $attributes = array())
+ {
+ $this->PEAR('Net_LDAP2_Error');
+
+ $this->setSearch($search);
+
+ if ($ldap instanceof Net_LDAP2) {
+ $this->_ldap =& $ldap;
+ $this->setLink($this->_ldap->getLink());
+ } else {
+ $this->setLink($ldap);
+ }
+
+ $this->_errorCode = @ldap_errno($this->_link);
+
+ if (is_array($attributes) && !empty($attributes)) {
+ $this->_searchedAttrs = $attributes;
+ }
+ }
+
+ /**
+ * Returns an array of entry objects
+ *
+ * @return array Array of entry objects.
+ */
+ public function entries()
+ {
+ $entries = array();
+
+ while ($entry = $this->shiftEntry()) {
+ $entries[] = $entry;
+ }
+
+ return $entries;
+ }
+
+ /**
+ * Get the next entry in the searchresult.
+ *
+ * This will return a valid Net_LDAP2_Entry object or false, so
+ * you can use this method to easily iterate over the entries inside
+ * a while loop.
+ *
+ * @return Net_LDAP2_Entry|false Reference to Net_LDAP2_Entry object or false
+ */
+ public function &shiftEntry()
+ {
+ if ($this->count() == 0 ) {
+ $false = false;
+ return $false;
+ }
+
+ if (is_null($this->_entry)) {
+ $this->_entry = @ldap_first_entry($this->_link, $this->_search);
+ $entry = Net_LDAP2_Entry::createConnected($this->_ldap, $this->_entry);
+ if ($entry instanceof Net_LDAP2_Error) $entry = false;
+ } else {
+ if (!$this->_entry = @ldap_next_entry($this->_link, $this->_entry)) {
+ $false = false;
+ return $false;
+ }
+ $entry = Net_LDAP2_Entry::createConnected($this->_ldap, $this->_entry);
+ if ($entry instanceof Net_LDAP2_Error) $entry = false;
+ }
+ return $entry;
+ }
+
+ /**
+ * Alias function of shiftEntry() for perl-ldap interface
+ *
+ * @see shiftEntry()
+ * @return Net_LDAP2_Entry|false
+ */
+ public function shift_entry()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array( &$this, 'shiftEntry' ), $args);
+ }
+
+ /**
+ * Retrieve the next entry in the searchresult, but starting from last entry
+ *
+ * This is the opposite to {@link shiftEntry()} and is also very useful
+ * to be used inside a while loop.
+ *
+ * @return Net_LDAP2_Entry|false
+ */
+ public function popEntry()
+ {
+ if (false === $this->_entry_cache) {
+ // fetch entries into cache if not done so far
+ $this->_entry_cache = $this->entries();
+ }
+
+ $return = array_pop($this->_entry_cache);
+ return (null === $return)? false : $return;
+ }
+
+ /**
+ * Alias function of popEntry() for perl-ldap interface
+ *
+ * @see popEntry()
+ * @return Net_LDAP2_Entry|false
+ */
+ public function pop_entry()
+ {
+ $args = func_get_args();
+ return call_user_func_array(array( &$this, 'popEntry' ), $args);
+ }
+
+ /**
+ * Return entries sorted as array
+ *
+ * This returns a array with sorted entries and the values.
+ * Sorting is done with PHPs {@link array_multisort()}.
+ * This method relies on {@link as_struct()} to fetch the raw data of the entries.
+ *
+ * Please note that attribute names are case sensitive!
+ *
+ * Usage example:
+ * <code>
+ * // to sort entries first by location, then by surename, but descending:
+ * $entries = $search->sorted_as_struct(array('locality','sn'), SORT_DESC);
+ * </code>
+ *
+ * @param array $attrs Array of attribute names to sort; order from left to right.
+ * @param int $order Ordering direction, either constant SORT_ASC or SORT_DESC
+ *
+ * @return array|Net_LDAP2_Error Array with sorted entries or error
+ * @todo what about server side sorting as specified in http://www.ietf.org/rfc/rfc2891.txt?
+ */
+ public function sorted_as_struct($attrs = array('cn'), $order = SORT_ASC)
+ {
+ /*
+ * Old Code, suitable and fast for single valued sorting
+ * This code should be used if we know that single valued sorting is desired,
+ * but we need some method to get that knowledge...
+ */
+ /*
+ $attrs = array_reverse($attrs);
+ foreach ($attrs as $attribute) {
+ if (!ldap_sort($this->_link, $this->_search, $attribute)){
+ $this->raiseError("Sorting failed for Attribute " . $attribute);
+ }
+ }
+
+ $results = ldap_get_entries($this->_link, $this->_search);
+
+ unset($results['count']); //for tidier output
+ if ($order) {
+ return array_reverse($results);
+ } else {
+ return $results;
+ }*/
+
+ /*
+ * New code: complete "client side" sorting
+ */
+ // first some parameterchecks
+ if (!is_array($attrs)) {
+ return PEAR::raiseError("Sorting failed: Parameterlist must be an array!");
+ }
+ if ($order != SORT_ASC && $order != SORT_DESC) {
+ return PEAR::raiseError("Sorting failed: sorting direction not understood! (neither constant SORT_ASC nor SORT_DESC)");
+ }
+
+ // fetch the entries data
+ $entries = $this->as_struct();
+
+ // now sort each entries attribute values
+ // this is neccessary because later we can only sort by one value,
+ // so we need the highest or lowest attribute now, depending on the
+ // selected ordering for that specific attribute
+ foreach ($entries as $dn => $entry) {
+ foreach ($entry as $attr_name => $attr_values) {
+ sort($entries[$dn][$attr_name]);
+ if ($order == SORT_DESC) {
+ array_reverse($entries[$dn][$attr_name]);
+ }
+ }
+ }
+
+ // reformat entrys array for later use with array_multisort()
+ $to_sort = array(); // <- will be a numeric array similar to ldap_get_entries
+ foreach ($entries as $dn => $entry_attr) {
+ $row = array();
+ $row['dn'] = $dn;
+ foreach ($entry_attr as $attr_name => $attr_values) {
+ $row[$attr_name] = $attr_values;
+ }
+ $to_sort[] = $row;
+ }
+
+ // Build columns for array_multisort()
+ // each requested attribute is one row
+ $columns = array();
+ foreach ($attrs as $attr_name) {
+ foreach ($to_sort as $key => $row) {
+ $columns[$attr_name][$key] =& $to_sort[$key][$attr_name][0];
+ }
+ }
+
+ // sort the colums with array_multisort, if there is something
+ // to sort and if we have requested sort columns
+ if (!empty($to_sort) && !empty($columns)) {
+ $sort_params = '';
+ foreach ($attrs as $attr_name) {
+ $sort_params .= '$columns[\''.$attr_name.'\'], '.$order.', ';
+ }
+ eval("array_multisort($sort_params \$to_sort);"); // perform sorting
+ }
+
+ return $to_sort;
+ }
+
+ /**
+ * Return entries sorted as objects
+ *
+ * This returns a array with sorted Net_LDAP2_Entry objects.
+ * The sorting is actually done with {@link sorted_as_struct()}.
+ *
+ * Please note that attribute names are case sensitive!
+ * Also note, that it is (depending on server capabilitys) possible to let
+ * the server sort your results. This happens through search controls
+ * and is described in detail at {@link http://www.ietf.org/rfc/rfc2891.txt}
+ *
+ * Usage example:
+ * <code>
+ * // to sort entries first by location, then by surename, but descending:
+ * $entries = $search->sorted(array('locality','sn'), SORT_DESC);
+ * </code>
+ *
+ * @param array $attrs Array of sort attributes to sort; order from left to right.
+ * @param int $order Ordering direction, either constant SORT_ASC or SORT_DESC
+ *
+ * @return array|Net_LDAP2_Error Array with sorted Net_LDAP2_Entries or error
+ * @todo Entry object construction could be faster. Maybe we could use one of the factorys instead of fetching the entry again
+ */
+ public function sorted($attrs = array('cn'), $order = SORT_ASC)
+ {
+ $return = array();
+ $sorted = $this->sorted_as_struct($attrs, $order);
+ if (PEAR::isError($sorted)) {
+ return $sorted;
+ }
+ foreach ($sorted as $key => $row) {
+ $entry = $this->_ldap->getEntry($row['dn'], $this->searchedAttrs());
+ if (!PEAR::isError($entry)) {
+ array_push($return, $entry);
+ } else {
+ return $entry;
+ }
+ }
+ return $return;
+ }
+
+ /**
+ * Return entries as array
+ *
+ * This method returns the entries and the selected attributes values as
+ * array.
+ * The first array level contains all found entries where the keys are the
+ * DNs of the entries. The second level arrays contian the entries attributes
+ * such that the keys is the lowercased name of the attribute and the values
+ * are stored in another indexed array. Note that the attribute values are stored
+ * in an array even if there is no or just one value.
+ *
+ * The array has the following structure:
+ * <code>
+ * $return = array(
+ * 'cn=foo,dc=example,dc=com' => array(
+ * 'sn' => array('foo'),
+ * 'multival' => array('val1', 'val2', 'valN')
+ * )
+ * 'cn=bar,dc=example,dc=com' => array(
+ * 'sn' => array('bar'),
+ * 'multival' => array('val1', 'valN')
+ * )
+ * )
+ * </code>
+ *
+ * @return array associative result array as described above
+ */
+ public function as_struct()
+ {
+ $return = array();
+ $entries = $this->entries();
+ foreach ($entries as $entry) {
+ $attrs = array();
+ $entry_attributes = $entry->attributes();
+ foreach ($entry_attributes as $attr_name) {
+ $attr_values = $entry->getValue($attr_name, 'all');
+ if (!is_array($attr_values)) {
+ $attr_values = array($attr_values);
+ }
+ $attrs[$attr_name] = $attr_values;
+ }
+ $return[$entry->dn()] = $attrs;
+ }
+ return $return;
+ }
+
+ /**
+ * Set the search objects resource link
+ *
+ * @param resource &$search Search result identifier
+ *
+ * @access public
+ * @return void
+ */
+ public function setSearch(&$search)
+ {
+ $this->_search = $search;
+ }
+
+ /**
+ * Set the ldap ressource link
+ *
+ * @param resource &$link Link identifier
+ *
+ * @access public
+ * @return void
+ */
+ public function setLink(&$link)
+ {
+ $this->_link = $link;
+ }
+
+ /**
+ * Returns the number of entries in the searchresult
+ *
+ * @return int Number of entries in search.
+ */
+ public function count()
+ {
+ // this catches the situation where OL returned errno 32 = no such object!
+ if (!$this->_search) {
+ return 0;
+ }
+ return @ldap_count_entries($this->_link, $this->_search);
+ }
+
+ /**
+ * Get the errorcode the object got in its search.
+ *
+ * @return int The ldap error number.
+ */
+ public function getErrorCode()
+ {
+ return $this->_errorCode;
+ }
+
+ /**
+ * Destructor
+ *
+ * @access protected
+ */
+ public function _Net_LDAP2_Search()
+ {
+ @ldap_free_result($this->_search);
+ }
+
+ /**
+ * Closes search result
+ *
+ * @return void
+ */
+ public function done()
+ {
+ $this->_Net_LDAP2_Search();
+ }
+
+ /**
+ * Return the attribute names this search selected
+ *
+ * @return array
+ * @see $_searchedAttrs
+ * @access protected
+ */
+ protected function searchedAttrs()
+ {
+ return $this->_searchedAttrs;
+ }
+
+ /**
+ * Tells if this search exceeds a sizelimit
+ *
+ * @return boolean
+ */
+ public function sizeLimitExceeded()
+ {
+ return ($this->getErrorCode() == 4);
+ }
+
+
+ /*
+ * SPL Iterator interface methods.
+ * This interface allows to use Net_LDAP2_Search
+ * objects directly inside a foreach loop!
+ */
+ /**
+ * SPL Iterator interface: Return the current element.
+ *
+ * The SPL Iterator interface allows you to fetch entries inside
+ * a foreach() loop: <code>foreach ($search as $dn => $entry) { ...</code>
+ *
+ * Of course, you may call {@link current()}, {@link key()}, {@link next()},
+ * {@link rewind()} and {@link valid()} yourself.
+ *
+ * If the search throwed an error, it returns false.
+ * False is also returned, if the end is reached
+ * In case no call to next() was made, we will issue one,
+ * thus returning the first entry.
+ *
+ * @return Net_LDAP2_Entry|false
+ */
+ public function current()
+ {
+ if (count($this->_iteratorCache) == 0) {
+ $this->next();
+ reset($this->_iteratorCache);
+ }
+ $entry = current($this->_iteratorCache);
+ return ($entry instanceof Net_LDAP2_Entry)? $entry : false;
+ }
+
+ /**
+ * SPL Iterator interface: Return the identifying key (DN) of the current entry.
+ *
+ * @see current()
+ * @return string|false DN of the current entry; false in case no entry is returned by current()
+ */
+ public function key()
+ {
+ $entry = $this->current();
+ return ($entry instanceof Net_LDAP2_Entry)? $entry->dn() :false;
+ }
+
+ /**
+ * SPL Iterator interface: Move forward to next entry.
+ *
+ * After a call to {@link next()}, {@link current()} will return
+ * the next entry in the result set.
+ *
+ * @see current()
+ * @return void
+ */
+ public function next()
+ {
+ // fetch next entry.
+ // if we have no entrys anymore, we add false (which is
+ // returned by shiftEntry()) so current() will complain.
+ if (count($this->_iteratorCache) - 1 <= $this->count()) {
+ $this->_iteratorCache[] = $this->shiftEntry();
+ }
+
+ // move on array pointer to current element.
+ // even if we have added all entries, this will
+ // ensure proper operation in case we rewind()
+ next($this->_iteratorCache);
+ }
+
+ /**
+ * SPL Iterator interface: Check if there is a current element after calls to {@link rewind()} or {@link next()}.
+ *
+ * Used to check if we've iterated to the end of the collection.
+ *
+ * @see current()
+ * @return boolean FALSE if there's nothing more to iterate over
+ */
+ public function valid()
+ {
+ return ($this->current() instanceof Net_LDAP2_Entry);
+ }
+
+ /**
+ * SPL Iterator interface: Rewind the Iterator to the first element.
+ *
+ * After rewinding, {@link current()} will return the first entry in the result set.
+ *
+ * @see current()
+ * @return void
+ */
+ public function rewind()
+ {
+ reset($this->_iteratorCache);
+ }
+}
+
+?>
diff --git a/extlib/Net/LDAP2/SimpleFileSchemaCache.php b/extlib/Net/LDAP2/SimpleFileSchemaCache.php
new file mode 100644
index 000000000..8019654ac
--- /dev/null
+++ b/extlib/Net/LDAP2/SimpleFileSchemaCache.php
@@ -0,0 +1,97 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the example simple file based Schema Caching class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2009 Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: SimpleFileSchemaCache.php 286718 2009-08-03 07:30:49Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* A simple file based schema cacher with cache aging.
+*
+* Once the cache is too old, the loadSchema() method will return false, so
+* Net_LDAP2 will fetch a fresh object from the LDAP server that will
+* overwrite the current (outdated) old cache.
+*/
+class Net_LDAP2_SimpleFileSchemaCache implements Net_LDAP2_SchemaCache
+{
+ /**
+ * Internal config of this cache
+ *
+ * @see Net_LDAP2_SimpleFileSchemaCache()
+ * @var array
+ */
+ protected $config = array(
+ 'path' => '/tmp/Net_LDAP_Schema.cache',
+ 'max_age' => 1200
+ );
+
+ /**
+ * Initialize the simple cache
+ *
+ * Config is as following:
+ * path Complete path to the cache file.
+ * max_age Maximum age of cache in seconds, 0 means "endlessly".
+ *
+ * @param array $cfg Config array
+ */
+ public function Net_LDAP2_SimpleFileSchemaCache($cfg)
+ {
+ foreach ($cfg as $key => $value) {
+ if (array_key_exists($key, $this->config)) {
+ if (gettype($this->config[$key]) != gettype($value)) {
+ $this->getCore()->dropFatalError(__CLASS__.": Could not set config! Key $key does not match type ".gettype($this->config[$key])."!");
+ }
+ $this->config[$key] = $value;
+ } else {
+ $this->getCore()->dropFatalError(__CLASS__.": Could not set config! Key $key is not defined!");
+ }
+ }
+ }
+
+ /**
+ * Return the schema object from the cache
+ *
+ * If file is existent and cache has not expired yet,
+ * then the cache is deserialized and returned.
+ *
+ * @return Net_LDAP2_Schema|Net_LDAP2_Error|false
+ */
+ public function loadSchema()
+ {
+ $return = false; // Net_LDAP2 will load schema from LDAP
+ if (file_exists($this->config['path'])) {
+ $cache_maxage = filemtime($this->config['path']) + $this->config['max_age'];
+ if (time() <= $cache_maxage || $this->config['max_age'] == 0) {
+ $return = unserialize(file_get_contents($this->config['path']));
+ }
+ }
+ return $return;
+ }
+
+ /**
+ * Store a schema object in the cache
+ *
+ * This method will be called, if Net_LDAP2 has fetched a fresh
+ * schema object from LDAP and wants to init or refresh the cache.
+ *
+ * To invalidate the cache and cause Net_LDAP2 to refresh the cache,
+ * you can call this method with null or false as value.
+ * The next call to $ldap->schema() will then refresh the caches object.
+ *
+ * @param mixed $schema The object that should be cached
+ * @return true|Net_LDAP2_Error|false
+ */
+ public function storeSchema($schema) {
+ file_put_contents($this->config['path'], serialize($schema));
+ return true;
+ }
+}
diff --git a/extlib/Net/LDAP2/Util.php b/extlib/Net/LDAP2/Util.php
new file mode 100644
index 000000000..48b03f9f9
--- /dev/null
+++ b/extlib/Net/LDAP2/Util.php
@@ -0,0 +1,572 @@
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+/**
+* File containing the Net_LDAP2_Util interface class.
+*
+* PHP version 5
+*
+* @category Net
+* @package Net_LDAP2
+* @author Benedikt Hallinger <beni@php.net>
+* @copyright 2009 Benedikt Hallinger
+* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
+* @version SVN: $Id: Util.php 286718 2009-08-03 07:30:49Z beni $
+* @link http://pear.php.net/package/Net_LDAP2/
+*/
+
+/**
+* Includes
+*/
+require_once 'PEAR.php';
+
+/**
+* Utility Class for Net_LDAP2
+*
+* This class servers some functionality to the other classes of Net_LDAP2 but most of
+* the methods can be used separately as well.
+*
+* @category Net
+* @package Net_LDAP2
+* @author Benedikt Hallinger <beni@php.net>
+* @license http://www.gnu.org/copyleft/lesser.html LGPL
+* @link http://pear.php.net/package/Net_LDAP22/
+*/
+class Net_LDAP2_Util extends PEAR
+{
+ /**
+ * Constructor
+ *
+ * @access public
+ */
+ public function __construct()
+ {
+ // We do nothing here, since all methods can be called statically.
+ // In Net_LDAP <= 0.7, we needed a instance of Util, because
+ // it was possible to do utf8 encoding and decoding, but this
+ // has been moved to the LDAP class. The constructor remains only
+ // here to document the downward compatibility of creating an instance.
+ }
+
+ /**
+ * Explodes the given DN into its elements
+ *
+ * {@link http://www.ietf.org/rfc/rfc2253.txt RFC 2253} says, a Distinguished Name is a sequence
+ * of Relative Distinguished Names (RDNs), which themselves
+ * are sets of Attributes. For each RDN a array is constructed where the RDN part is stored.
+ *
+ * For example, the DN 'OU=Sales+CN=J. Smith,DC=example,DC=net' is exploded to:
+ * <kbd>array( [0] => array([0] => 'OU=Sales', [1] => 'CN=J. Smith'), [2] => 'DC=example', [3] => 'DC=net' )</kbd>
+ *
+ * [NOT IMPLEMENTED] DNs might also contain values, which are the bytes of the BER encoding of
+ * the X.500 AttributeValue rather than some LDAP string syntax. These values are hex-encoded
+ * and prefixed with a #. To distinguish such BER values, ldap_explode_dn uses references to
+ * the actual values, e.g. '1.3.6.1.4.1.1466.0=#04024869,DC=example,DC=com' is exploded to:
+ * [ { '1.3.6.1.4.1.1466.0' => "\004\002Hi" }, { 'DC' => 'example' }, { 'DC' => 'com' } ];
+ * See {@link http://www.vijaymukhi.com/vmis/berldap.htm} for more information on BER.
+ *
+ * It also performs the following operations on the given DN:
+ * - Unescape "\" followed by ",", "+", """, "\", "<", ">", ";", "#", "=", " ", or a hexpair
+ * and strings beginning with "#".
+ * - Removes the leading 'OID.' characters if the type is an OID instead of a name.
+ * - If an RDN contains multiple parts, the parts are re-ordered so that the attribute type names are in alphabetical order.
+ *
+ * OPTIONS is a list of name/value pairs, valid options are:
+ * casefold Controls case folding of attribute types names.
+ * Attribute values are not affected by this option.
+ * The default is to uppercase. Valid values are:
+ * lower Lowercase attribute types names.
+ * upper Uppercase attribute type names. This is the default.
+ * none Do not change attribute type names.
+ * reverse If TRUE, the RDN sequence is reversed.
+ * onlyvalues If TRUE, then only attributes values are returned ('foo' instead of 'cn=foo')
+ *
+
+ * @param string $dn The DN that should be exploded
+ * @param array $options Options to use
+ *
+ * @static
+ * @return array Parts of the exploded DN
+ * @todo implement BER
+ */
+ public static function ldap_explode_dn($dn, $options = array('casefold' => 'upper'))
+ {
+ if (!isset($options['onlyvalues'])) $options['onlyvalues'] = false;
+ if (!isset($options['reverse'])) $options['reverse'] = false;
+ if (!isset($options['casefold'])) $options['casefold'] = 'upper';
+
+ // Escaping of DN and stripping of "OID."
+ $dn = self::canonical_dn($dn, array('casefold' => $options['casefold']));
+
+ // splitting the DN
+ $dn_array = preg_split('/(?<=[^\\\\]),/', $dn);
+
+ // clear wrong splitting (possibly we have split too much)
+ // /!\ Not clear, if this is neccessary here
+ //$dn_array = self::correct_dn_splitting($dn_array, ',');
+
+ // construct subarrays for multivalued RDNs and unescape DN value
+ // also convert to output format and apply casefolding
+ foreach ($dn_array as $key => $value) {
+ $value_u = self::unescape_dn_value($value);
+ $rdns = self::split_rdn_multival($value_u[0]);
+ if (count($rdns) > 1) {
+ // MV RDN!
+ foreach ($rdns as $subrdn_k => $subrdn_v) {
+ // Casefolding
+ if ($options['casefold'] == 'upper') $subrdn_v = preg_replace("/^(\w+=)/e", "''.strtoupper('\\1').''", $subrdn_v);
+ if ($options['casefold'] == 'lower') $subrdn_v = preg_replace("/^(\w+=)/e", "''.strtolower('\\1').''", $subrdn_v);
+
+ if ($options['onlyvalues']) {
+ preg_match('/(.+?)(?<!\\\\)=(.+)/', $subrdn_v, $matches);
+ $rdn_ocl = $matches[1];
+ $rdn_val = $matches[2];
+ $unescaped = self::unescape_dn_value($rdn_val);
+ $rdns[$subrdn_k] = $unescaped[0];
+ } else {
+ $unescaped = self::unescape_dn_value($subrdn_v);
+ $rdns[$subrdn_k] = $unescaped[0];
+ }
+ }
+
+ $dn_array[$key] = $rdns;
+ } else {
+ // normal RDN
+
+ // Casefolding
+ if ($options['casefold'] == 'upper') $value = preg_replace("/^(\w+=)/e", "''.strtoupper('\\1').''", $value);
+ if ($options['casefold'] == 'lower') $value = preg_replace("/^(\w+=)/e", "''.strtolower('\\1').''", $value);
+
+ if ($options['onlyvalues']) {
+ preg_match('/(.+?)(?<!\\\\)=(.+)/', $value, $matches);
+ $dn_ocl = $matches[1];
+ $dn_val = $matches[2];
+ $unescaped = self::unescape_dn_value($dn_val);
+ $dn_array[$key] = $unescaped[0];
+ } else {
+ $unescaped = self::unescape_dn_value($value);
+ $dn_array[$key] = $unescaped[0];
+ }
+ }
+ }
+
+ if ($options['reverse']) {
+ return array_reverse($dn_array);
+ } else {
+ return $dn_array;
+ }
+ }
+
+ /**
+ * Escapes a DN value according to RFC 2253
+ *
+ * Escapes the given VALUES according to RFC 2253 so that they can be safely used in LDAP DNs.
+ * The characters ",", "+", """, "\", "<", ">", ";", "#", "=" with a special meaning in RFC 2252
+ * are preceeded by ba backslash. Control characters with an ASCII code < 32 are represented as \hexpair.
+ * Finally all leading and trailing spaces are converted to sequences of \20.
+ *
+ * @param array $values An array containing the DN values that should be escaped
+ *
+ * @static
+ * @return array The array $values, but escaped
+ */
+ public static function escape_dn_value($values = array())
+ {
+ // Parameter validation
+ if (!is_array($values)) {
+ $values = array($values);
+ }
+
+ foreach ($values as $key => $val) {
+ // Escaping of filter meta characters
+ $val = str_replace('\\', '\\\\', $val);
+ $val = str_replace(',', '\,', $val);
+ $val = str_replace('+', '\+', $val);
+ $val = str_replace('"', '\"', $val);
+ $val = str_replace('<', '\<', $val);
+ $val = str_replace('>', '\>', $val);
+ $val = str_replace(';', '\;', $val);
+ $val = str_replace('#', '\#', $val);
+ $val = str_replace('=', '\=', $val);
+
+ // ASCII < 32 escaping
+ $val = self::asc2hex32($val);
+
+ // Convert all leading and trailing spaces to sequences of \20.
+ if (preg_match('/^(\s*)(.+?)(\s*)$/', $val, $matches)) {
+ $val = $matches[2];
+ for ($i = 0; $i < strlen($matches[1]); $i++) {
+ $val = '\20'.$val;
+ }
+ for ($i = 0; $i < strlen($matches[3]); $i++) {
+ $val = $val.'\20';
+ }
+ }
+
+ if (null === $val) $val = '\0'; // apply escaped "null" if string is empty
+
+ $values[$key] = $val;
+ }
+
+ return $values;
+ }
+
+ /**
+ * Undoes the conversion done by escape_dn_value().
+ *
+ * Any escape sequence starting with a baskslash - hexpair or special character -
+ * will be transformed back to the corresponding character.
+ *
+ * @param array $values Array of DN Values
+ *
+ * @return array Same as $values, but unescaped
+ * @static
+ */
+ public static function unescape_dn_value($values = array())
+ {
+ // Parameter validation
+ if (!is_array($values)) {
+ $values = array($values);
+ }
+
+ foreach ($values as $key => $val) {
+ // strip slashes from special chars
+ $val = str_replace('\\\\', '\\', $val);
+ $val = str_replace('\,', ',', $val);
+ $val = str_replace('\+', '+', $val);
+ $val = str_replace('\"', '"', $val);
+ $val = str_replace('\<', '<', $val);
+ $val = str_replace('\>', '>', $val);
+ $val = str_replace('\;', ';', $val);
+ $val = str_replace('\#', '#', $val);
+ $val = str_replace('\=', '=', $val);
+
+ // Translate hex code into ascii
+ $values[$key] = self::hex2asc($val);
+ }
+
+ return $values;
+ }
+
+ /**
+ * Returns the given DN in a canonical form
+ *
+ * Returns false if DN is not a valid Distinguished Name.
+ * DN can either be a string or an array
+ * as returned by ldap_explode_dn, which is useful when constructing a DN.
+ * The DN array may have be indexed (each array value is a OCL=VALUE pair)
+ * or associative (array key is OCL and value is VALUE).
+ *
+ * It performs the following operations on the given DN:
+ * - Removes the leading 'OID.' characters if the type is an OID instead of a name.
+ * - Escapes all RFC 2253 special characters (",", "+", """, "\", "<", ">", ";", "#", "="), slashes ("/"), and any other character where the ASCII code is < 32 as \hexpair.
+ * - Converts all leading and trailing spaces in values to be \20.
+ * - If an RDN contains multiple parts, the parts are re-ordered so that the attribute type names are in alphabetical order.
+ *
+ * OPTIONS is a list of name/value pairs, valid options are:
+ * casefold Controls case folding of attribute type names.
+ * Attribute values are not affected by this option. The default is to uppercase.
+ * Valid values are:
+ * lower Lowercase attribute type names.
+ * upper Uppercase attribute type names. This is the default.
+ * none Do not change attribute type names.
+ * [NOT IMPLEMENTED] mbcescape If TRUE, characters that are encoded as a multi-octet UTF-8 sequence will be escaped as \(hexpair){2,*}.
+ * reverse If TRUE, the RDN sequence is reversed.
+ * separator Separator to use between RDNs. Defaults to comma (',').
+ *
+ * Note: The empty string "" is a valid DN, so be sure not to do a "$can_dn == false" test,
+ * because an empty string evaluates to false. Use the "===" operator instead.
+ *
+ * @param array|string $dn The DN
+ * @param array $options Options to use
+ *
+ * @static
+ * @return false|string The canonical DN or FALSE
+ * @todo implement option mbcescape
+ */
+ public static function canonical_dn($dn, $options = array('casefold' => 'upper', 'separator' => ','))
+ {
+ if ($dn === '') return $dn; // empty DN is valid!
+
+ // options check
+ if (!isset($options['reverse'])) {
+ $options['reverse'] = false;
+ } else {
+ $options['reverse'] = true;
+ }
+ if (!isset($options['casefold'])) $options['casefold'] = 'upper';
+ if (!isset($options['separator'])) $options['separator'] = ',';
+
+
+ if (!is_array($dn)) {
+ // It is not clear to me if the perl implementation splits by the user defined
+ // separator or if it just uses this separator to construct the new DN
+ $dn = preg_split('/(?<=[^\\\\])'.$options['separator'].'/', $dn);
+
+ // clear wrong splitting (possibly we have split too much)
+ $dn = self::correct_dn_splitting($dn, $options['separator']);
+ } else {
+ // Is array, check, if the array is indexed or associative
+ $assoc = false;
+ foreach ($dn as $dn_key => $dn_part) {
+ if (!is_int($dn_key)) {
+ $assoc = true;
+ }
+ }
+ // convert to indexed, if associative array detected
+ if ($assoc) {
+ $newdn = array();
+ foreach ($dn as $dn_key => $dn_part) {
+ if (is_array($dn_part)) {
+ ksort($dn_part, SORT_STRING); // we assume here, that the rdn parts are also associative
+ $newdn[] = $dn_part; // copy array as-is, so we can resolve it later
+ } else {
+ $newdn[] = $dn_key.'='.$dn_part;
+ }
+ }
+ $dn =& $newdn;
+ }
+ }
+
+ // Escaping and casefolding
+ foreach ($dn as $pos => $dnval) {
+ if (is_array($dnval)) {
+ // subarray detected, this means very surely, that we had
+ // a multivalued dn part, which must be resolved
+ $dnval_new = '';
+ foreach ($dnval as $subkey => $subval) {
+ // build RDN part
+ if (!is_int($subkey)) {
+ $subval = $subkey.'='.$subval;
+ }
+ $subval_processed = self::canonical_dn($subval);
+ if (false === $subval_processed) return false;
+ $dnval_new .= $subval_processed.'+';
+ }
+ $dn[$pos] = substr($dnval_new, 0, -1); // store RDN part, strip last plus
+ } else {
+ // try to split multivalued RDNS into array
+ $rdns = self::split_rdn_multival($dnval);
+ if (count($rdns) > 1) {
+ // Multivalued RDN was detected!
+ // The RDN value is expected to be correctly split by split_rdn_multival().
+ // It's time to sort the RDN and build the DN!
+ $rdn_string = '';
+ sort($rdns, SORT_STRING); // Sort RDN keys alphabetically
+ foreach ($rdns as $rdn) {
+ $subval_processed = self::canonical_dn($rdn);
+ if (false === $subval_processed) return false;
+ $rdn_string .= $subval_processed.'+';
+ }
+
+ $dn[$pos] = substr($rdn_string, 0, -1); // store RDN part, strip last plus
+
+ } else {
+ // no multivalued RDN!
+ // split at first unescaped "="
+ $dn_comp = preg_split('/(?<=[^\\\\])=/', $rdns[0], 2);
+ $ocl = ltrim($dn_comp[0]); // trim left whitespaces 'cause of "cn=foo, l=bar" syntax (whitespace after comma)
+ $val = $dn_comp[1];
+
+ // strip 'OID.', otherwise apply casefolding and escaping
+ if (substr(strtolower($ocl), 0, 4) == 'oid.') {
+ $ocl = substr($ocl, 4);
+ } else {
+ if ($options['casefold'] == 'upper') $ocl = strtoupper($ocl);
+ if ($options['casefold'] == 'lower') $ocl = strtolower($ocl);
+ $ocl = self::escape_dn_value(array($ocl));
+ $ocl = $ocl[0];
+ }
+
+ // escaping of dn-value
+ $val = self::escape_dn_value(array($val));
+ $val = str_replace('/', '\/', $val[0]);
+
+ $dn[$pos] = $ocl.'='.$val;
+ }
+ }
+ }
+
+ if ($options['reverse']) $dn = array_reverse($dn);
+ return implode($options['separator'], $dn);
+ }
+
+ /**
+ * Escapes the given VALUES according to RFC 2254 so that they can be safely used in LDAP filters.
+ *
+ * Any control characters with an ACII code < 32 as well as the characters with special meaning in
+ * LDAP filters "*", "(", ")", and "\" (the backslash) are converted into the representation of a
+ * backslash followed by two hex digits representing the hexadecimal value of the character.
+ *
+ * @param array $values Array of values to escape
+ *
+ * @static
+ * @return array Array $values, but escaped
+ */
+ public static function escape_filter_value($values = array())
+ {
+ // Parameter validation
+ if (!is_array($values)) {
+ $values = array($values);
+ }
+
+ foreach ($values as $key => $val) {
+ // Escaping of filter meta characters
+ $val = str_replace('\\', '\5c', $val);
+ $val = str_replace('*', '\2a', $val);
+ $val = str_replace('(', '\28', $val);
+ $val = str_replace(')', '\29', $val);
+
+ // ASCII < 32 escaping
+ $val = self::asc2hex32($val);
+
+ if (null === $val) $val = '\0'; // apply escaped "null" if string is empty
+
+ $values[$key] = $val;
+ }
+
+ return $values;
+ }
+
+ /**
+ * Undoes the conversion done by {@link escape_filter_value()}.
+ *
+ * Converts any sequences of a backslash followed by two hex digits into the corresponding character.
+ *
+ * @param array $values Array of values to escape
+ *
+ * @static
+ * @return array Array $values, but unescaped
+ */
+ public static function unescape_filter_value($values = array())
+ {
+ // Parameter validation
+ if (!is_array($values)) {
+ $values = array($values);
+ }
+
+ foreach ($values as $key => $value) {
+ // Translate hex code into ascii
+ $values[$key] = self::hex2asc($value);
+ }
+
+ return $values;
+ }
+
+ /**
+ * Converts all ASCII chars < 32 to "\HEX"
+ *
+ * @param string $string String to convert
+ *
+ * @static
+ * @return string
+ */
+ public static function asc2hex32($string)
+ {
+ for ($i = 0; $i < strlen($string); $i++) {
+ $char = substr($string, $i, 1);
+ if (ord($char) < 32) {
+ $hex = dechex(ord($char));
+ if (strlen($hex) == 1) $hex = '0'.$hex;
+ $string = str_replace($char, '\\'.$hex, $string);
+ }
+ }
+ return $string;
+ }
+
+ /**
+ * Converts all Hex expressions ("\HEX") to their original ASCII characters
+ *
+ * @param string $string String to convert
+ *
+ * @static
+ * @author beni@php.net, heavily based on work from DavidSmith@byu.net
+ * @return string
+ */
+ public static function hex2asc($string)
+ {
+ $string = preg_replace("/\\\([0-9A-Fa-f]{2})/e", "''.chr(hexdec('\\1')).''", $string);
+ return $string;
+ }
+
+ /**
+ * Split an multivalued RDN value into an Array
+ *
+ * A RDN can contain multiple values, spearated by a plus sign.
+ * This function returns each separate ocl=value pair of the RDN part.
+ *
+ * If no multivalued RDN is detected, an array containing only
+ * the original rdn part is returned.
+ *
+ * For example, the multivalued RDN 'OU=Sales+CN=J. Smith' is exploded to:
+ * <kbd>array([0] => 'OU=Sales', [1] => 'CN=J. Smith')</kbd>
+ *
+ * The method trys to be smart if it encounters unescaped "+" characters, but may fail,
+ * so ensure escaped "+"es in attr names and attr values.
+ *
+ * [BUG] If you have a multivalued RDN with unescaped plus characters
+ * and there is a unescaped plus sign at the end of an value followed by an
+ * attribute name containing an unescaped plus, then you will get wrong splitting:
+ * $rdn = 'OU=Sales+C+N=J. Smith';
+ * returns:
+ * array('OU=Sales+C', 'N=J. Smith');
+ * The "C+" is treaten as value of the first pair instead as attr name of the second pair.
+ * To prevent this, escape correctly.
+ *
+ * @param string $rdn Part of an (multivalued) escaped RDN (eg. ou=foo OR ou=foo+cn=bar)
+ *
+ * @static
+ * @return array Array with the components of the multivalued RDN or Error
+ */
+ public static function split_rdn_multival($rdn)
+ {
+ $rdns = preg_split('/(?<!\\\\)\+/', $rdn);
+ $rdns = self::correct_dn_splitting($rdns, '+');
+ return array_values($rdns);
+ }
+
+ /**
+ * Splits a attribute=value syntax into an array
+ *
+ * The split will occur at the first unescaped '=' character.
+ *
+ * @param string $attr Attribute and Value Syntax
+ *
+ * @return array Indexed array: 0=attribute name, 1=attribute value
+ */
+ public static function split_attribute_string($attr)
+ {
+ return preg_split('/(?<!\\\\)=/', $attr, 2);
+ }
+
+ /**
+ * Corrects splitting of dn parts
+ *
+ * @param array $dn Raw DN array
+ * @param array $separator Separator that was used when splitting
+ *
+ * @return array Corrected array
+ * @access protected
+ */
+ protected static function correct_dn_splitting($dn = array(), $separator = ',')
+ {
+ foreach ($dn as $key => $dn_value) {
+ $dn_value = $dn[$key]; // refresh value (foreach caches!)
+ // if the dn_value is not in attr=value format, then we had an
+ // unescaped separator character inside the attr name or the value.
+ // We assume, that it was the attribute value.
+ // [TODO] To solve this, we might ask the schema. Keep in mind, that UTIL class
+ // must remain independent from the other classes or connections.
+ if (!preg_match('/.+(?<!\\\\)=.+/', $dn_value)) {
+ unset($dn[$key]);
+ if (array_key_exists($key-1, $dn)) {
+ $dn[$key-1] = $dn[$key-1].$separator.$dn_value; // append to previous attr value
+ } else {
+ $dn[$key+1] = $dn_value.$separator.$dn[$key+1]; // first element: prepend to next attr name
+ }
+ }
+ }
+ return array_values($dn);
+ }
+}
+
+?>
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