+-----------------------------------------------------------------------+
| program/include/rcube_ldap.php |
| |
- | This file is part of the RoundCube Webmail client |
- | Copyright (C) 2006-2009, RoundCube Dev. - Switzerland |
+ | This file is part of the Roundcube Webmail client |
+ | Copyright (C) 2006-2011, The Roundcube Dev Team |
+ | Copyright (C) 2011, Kolab Systems AG |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+ | Andreas Dick <andudi (at) gmx (dot) ch> |
+ | Aleksander Machniak <machniak@kolabsys.com> |
+-----------------------------------------------------------------------+
- $Id: rcube_ldap.php 2237 2009-01-17 01:55:39Z till $
+ $Id: rcube_ldap.php 5261 2011-09-21 12:22:40Z alec $
*/
*
* @package Addressbook
*/
-class rcube_ldap
+class rcube_ldap extends rcube_addressbook
{
- var $conn;
- var $prop = array();
- var $fieldmap = array();
-
- var $filter = '';
- var $result = null;
- var $ldap_result = null;
- var $sort_col = '';
-
- /** public properties */
- var $primary_key = 'ID';
- var $readonly = true;
- var $list_page = 1;
- var $page_size = 10;
- var $ready = false;
-
-
- /**
- * Object constructor
- *
- * @param array LDAP connection properties
- * @param integer User-ID
- */
- function __construct($p)
- {
- $this->prop = $p;
-
- foreach ($p as $prop => $value)
- if (preg_match('/^(.+)_field$/', $prop, $matches))
- $this->fieldmap[$matches[1]] = $value;
-
- $this->sort_col = $p["sort"];
-
- $this->connect();
- }
-
-
- /**
- * Establish a connection to the LDAP server
- */
- function connect()
- {
- global $RCMAIL;
-
- if (!function_exists('ldap_connect'))
- raise_error(array('code' => 100, 'type' => 'ldap', 'message' => "No ldap support in this installation of PHP"), true);
-
- if (is_resource($this->conn))
- return true;
-
- if (!is_array($this->prop['hosts']))
- $this->prop['hosts'] = array($this->prop['hosts']);
-
- if (empty($this->prop['ldap_version']))
- $this->prop['ldap_version'] = 3;
-
- foreach ($this->prop['hosts'] as $host)
- {
- if ($lc = @ldap_connect($host, $this->prop['port']))
- {
- if ($this->prop['use_tls']===true)
- if (!ldap_start_tls($lc))
- continue;
-
- ldap_set_option($lc, LDAP_OPT_PROTOCOL_VERSION, $this->prop['ldap_version']);
- $this->prop['host'] = $host;
- $this->conn = $lc;
- break;
- }
- }
-
- if (is_resource($this->conn))
- {
- $this->ready = true;
-
- // User specific access, generate the proper values to use.
- if ($this->prop["user_specific"]) {
- // No password set, use the session password
- if (empty($this->prop['bind_pass'])) {
- $this->prop['bind_pass'] = $RCMAIL->decrypt_passwd($_SESSION["password"]);
- }
-
- // Get the pieces needed for variable replacement.
- $fu = $RCMAIL->user->get_username();
- list($u, $d) = explode('@', $fu);
-
- // Replace the bind_dn and base_dn variables.
- $replaces = array('%fu' => $fu, '%u' => $u, '%d' => $d);
- $this->prop['bind_dn'] = strtr($this->prop['bind_dn'], $replaces);
- $this->prop['base_dn'] = strtr($this->prop['base_dn'], $replaces);
- }
-
- if (!empty($this->prop['bind_dn']) && !empty($this->prop['bind_pass']))
- $this->ready = $this->bind($this->prop['bind_dn'], $this->prop['bind_pass']);
- }
- else
- raise_error(array('code' => 100, 'type' => 'ldap', 'message' => "Could not connect to any LDAP server, tried $host:{$this->prop[port]} last"), true);
-
- // See if the directory is writeable.
- if ($this->prop['writable']) {
- $this->readonly = false;
- } // end if
-
- }
-
-
- /**
- * Bind connection with DN and password
- *
- * @param string Bind DN
- * @param string Bind password
- * @return boolean True on success, False on error
- */
- function bind($dn, $pass)
- {
- if (!$this->conn) {
- return false;
- }
-
- if (@ldap_bind($this->conn, $dn, $pass)) {
- return true;
- }
-
- raise_error(array(
- 'code' => ldap_errno($this->conn),
- 'type' => 'ldap',
- 'message' => "Bind failed for dn=$dn: ".ldap_error($this->conn)),
- true);
-
- return false;
- }
-
-
- /**
- * Close connection to LDAP server
- */
- function close()
- {
- if ($this->conn)
- {
- @ldap_unbind($this->conn);
- $this->conn = null;
- }
- }
-
-
- /**
- * Set internal list page
- *
- * @param number Page number to list
- * @access public
- */
- function set_page($page)
- {
- $this->list_page = (int)$page;
- }
-
-
- /**
- * Set internal page size
- *
- * @param number Number of messages to display on one page
- * @access public
- */
- function set_pagesize($size)
- {
- $this->page_size = (int)$size;
- }
-
-
- /**
- * Save a search string for future listings
- *
- * @param string Filter string
- */
- function set_search_set($filter)
- {
- $this->filter = $filter;
- }
-
-
- /**
- * Getter for saved search properties
- *
- * @return mixed Search properties used by this class
- */
- function get_search_set()
- {
- return $this->filter;
- }
-
-
- /**
- * Reset all saved results and search parameters
- */
- function reset()
- {
- $this->result = null;
- $this->ldap_result = null;
- $this->filter = '';
- }
-
-
- /**
- * List the current set of contact records
- *
- * @param array List of cols to show
- * @param int Only return this number of records
- * @return array Indexed list of contact records, each a hash array
- */
- function list_records($cols=null, $subset=0)
- {
- // add general filter to query
- if (!empty($this->prop['filter']) && empty($this->filter))
- {
- $filter = $this->prop['filter'];
- $this->set_search_set($filter);
- }
-
- // exec LDAP search if no result resource is stored
- if ($this->conn && !$this->ldap_result)
- $this->_exec_search();
-
- // count contacts for this user
- $this->result = $this->count();
-
- // we have a search result resource
- if ($this->ldap_result && $this->result->count > 0)
- {
- if ($this->sort_col && $this->prop['scope'] !== "base")
- @ldap_sort($this->conn, $this->ldap_result, $this->sort_col);
-
- $start_row = $subset < 0 ? $this->result->first + $this->page_size + $subset : $this->result->first;
- $last_row = $this->result->first + $this->page_size;
- $last_row = $subset != 0 ? $start_row + abs($subset) : $last_row;
-
- $entries = ldap_get_entries($this->conn, $this->ldap_result);
- for ($i = $start_row; $i < min($entries['count'], $last_row); $i++)
- $this->result->add($this->_ldap2result($entries[$i]));
- }
-
- return $this->result;
- }
-
-
- /**
- * Search contacts
- *
- * @param array List of fields to search in
- * @param string Search value
- * @param boolean True if results are requested, False if count only
- * @return array Indexed list of contact records and 'count' value
- */
- function search($fields, $value, $strict=false, $select=true)
- {
- // special treatment for ID-based search
- if ($fields == 'ID' || $fields == $this->primary_key)
- {
- $ids = explode(',', $value);
- $result = new rcube_result_set();
- foreach ($ids as $id)
- if ($rec = $this->get_record($id, true))
+ /** public properties */
+ public $primary_key = 'ID';
+ public $groups = false;
+ public $readonly = true;
+ public $ready = false;
+ public $group_id = 0;
+ public $list_page = 1;
+ public $page_size = 10;
+ public $coltypes = array();
+
+ /** private properties */
+ protected $conn;
+ protected $prop = array();
+ protected $fieldmap = array();
+
+ protected $filter = '';
+ protected $result = null;
+ protected $ldap_result = null;
+ protected $sort_col = '';
+ protected $mail_domain = '';
+ protected $debug = false;
+
+ private $base_dn = '';
+ private $groups_base_dn = '';
+ private $group_cache = array();
+ private $group_members = array();
+
+ private $vlv_active = false;
+ private $vlv_count = 0;
+
+
+ /**
+ * Object constructor
+ *
+ * @param array LDAP connection properties
+ * @param boolean Enables debug mode
+ * @param string Current user mail domain name
+ * @param integer User-ID
+ */
+ function __construct($p, $debug=false, $mail_domain=NULL)
+ {
+ $this->prop = $p;
+
+ // check if groups are configured
+ if (is_array($p['groups']) && count($p['groups'])) {
+ $this->groups = true;
+ // set member field
+ if (!empty($p['groups']['member_attr']))
+ $this->prop['member_attr'] = strtolower($p['groups']['member_attr']);
+ else if (empty($p['member_attr']))
+ $this->prop['member_attr'] = 'member';
+ }
+
+ // fieldmap property is given
+ if (is_array($p['fieldmap'])) {
+ foreach ($p['fieldmap'] as $rf => $lf)
+ $this->fieldmap[$rf] = $this->_attr_name(strtolower($lf));
+ }
+ else {
+ // read deprecated *_field properties to remain backwards compatible
+ foreach ($p as $prop => $value)
+ if (preg_match('/^(.+)_field$/', $prop, $matches))
+ $this->fieldmap[$matches[1]] = $this->_attr_name(strtolower($value));
+ }
+
+ // use fieldmap to advertise supported coltypes to the application
+ foreach ($this->fieldmap as $col => $lf) {
+ list($col, $type) = explode(':', $col);
+ if (!is_array($this->coltypes[$col])) {
+ $subtypes = $type ? array($type) : null;
+ $this->coltypes[$col] = array('limit' => 2, 'subtypes' => $subtypes);
+ }
+ elseif ($type) {
+ $this->coltypes[$col]['subtypes'][] = $type;
+ $this->coltypes[$col]['limit']++;
+ }
+ if ($type && !$this->fieldmap[$col])
+ $this->fieldmap[$col] = $lf;
+ }
+
+ if ($this->fieldmap['street'] && $this->fieldmap['locality'])
+ $this->coltypes['address'] = array('limit' => 1);
+ else if ($this->coltypes['address'])
+ $this->coltypes['address'] = array('type' => 'textarea', 'childs' => null, 'limit' => 1, 'size' => 40);
+
+ // make sure 'required_fields' is an array
+ if (!is_array($this->prop['required_fields']))
+ $this->prop['required_fields'] = (array) $this->prop['required_fields'];
+
+ foreach ($this->prop['required_fields'] as $key => $val)
+ $this->prop['required_fields'][$key] = $this->_attr_name(strtolower($val));
+
+ $this->sort_col = is_array($p['sort']) ? $p['sort'][0] : $p['sort'];
+ $this->debug = $debug;
+ $this->mail_domain = $mail_domain;
+
+ $this->_connect();
+ }
+
+
+ /**
+ * Establish a connection to the LDAP server
+ */
+ private function _connect()
+ {
+ global $RCMAIL;
+
+ if (!function_exists('ldap_connect'))
+ raise_error(array('code' => 100, 'type' => 'ldap',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "No ldap support in this installation of PHP"),
+ true, true);
+
+ if (is_resource($this->conn))
+ return true;
+
+ if (!is_array($this->prop['hosts']))
+ $this->prop['hosts'] = array($this->prop['hosts']);
+
+ if (empty($this->prop['ldap_version']))
+ $this->prop['ldap_version'] = 3;
+
+ foreach ($this->prop['hosts'] as $host)
{
- $result->add($rec);
- $result->count++;
- }
-
- return $result;
- }
-
- $filter = '(|';
- $wc = !$strict && $this->prop['fuzzy_search'] ? '*' : '';
- if (is_array($this->prop['search_fields']))
- {
- foreach ($this->prop['search_fields'] as $k => $field)
- $filter .= "($field=$wc" . rcube_ldap::quote_string($value) . "$wc)";
- }
- else
- {
- foreach ((array)$fields as $field)
- if ($f = $this->_map_field($field))
- $filter .= "($f=$wc" . rcube_ldap::quote_string($value) . "$wc)";
- }
- $filter .= ')';
-
- // avoid double-wildcard if $value is empty
- $filter = preg_replace('/\*+/', '*', $filter);
-
- // add general filter to query
- if (!empty($this->prop['filter']))
- $filter = '(&(' . preg_replace('/^\(|\)$/', '', $this->prop['filter']) . ')' . $filter . ')';
-
- // set filter string and execute search
- $this->set_search_set($filter);
- $this->_exec_search();
-
- if ($select)
- $this->list_records();
- else
- $this->result = $this->count();
-
- return $this->result;
- }
-
-
- /**
- * Count number of available contacts in database
- *
- * @return object rcube_result_set Resultset with values for 'count' and 'first'
- */
- function count()
- {
- $count = 0;
- if ($this->conn && $this->ldap_result) {
- $count = ldap_count_entries($this->conn, $this->ldap_result);
- } // end if
- elseif ($this->conn) {
- // We have a connection but no result set, attempt to get one.
- if (empty($this->filter)) {
- // The filter is not set, set it.
- $this->filter = $this->prop['filter'];
- } // end if
- $this->_exec_search();
- if ($this->ldap_result) {
- $count = ldap_count_entries($this->conn, $this->ldap_result);
- } // end if
- } // end else
-
- return new rcube_result_set($count, ($this->list_page-1) * $this->page_size);
- }
-
-
- /**
- * Return the last result set
- *
- * @return object rcube_result_set Current resultset or NULL if nothing selected yet
- */
- function get_result()
- {
- return $this->result;
- }
-
-
- /**
- * Get a specific contact record
- *
- * @param mixed Record identifier
- * @param boolean Return as associative array
- * @return mixed Hash array or rcube_result_set with all record fields
- */
- function get_record($dn, $assoc=false)
- {
- $res = null;
- if ($this->conn && $dn)
- {
- $this->ldap_result = @ldap_read($this->conn, base64_decode($dn), "(objectclass=*)", array_values($this->fieldmap));
- $entry = @ldap_first_entry($this->conn, $this->ldap_result);
-
- if ($entry && ($rec = ldap_get_attributes($this->conn, $entry)))
- {
- // Add in the dn for the entry.
- $rec["dn"] = base64_decode($dn);
- $res = $this->_ldap2result($rec);
- $this->result = new rcube_result_set(1);
- $this->result->add($res);
- }
- }
-
- return $assoc ? $res : $this->result;
- }
-
-
- /**
- * Create a new contact record
- *
- * @param array Hash array with save data
- * @return encoded record ID on success, False on error
- */
- function insert($save_cols)
- {
- // Map out the column names to their LDAP ones to build the new entry.
- $newentry = array();
- $newentry["objectClass"] = $this->prop["LDAP_Object_Classes"];
- foreach ($save_cols as $col => $val) {
- $fld = "";
- $fld = $this->_map_field($col);
- if ($fld != "") {
- // The field does exist, add it to the entry.
- $newentry[$fld] = $val;
- } // end if
- } // end foreach
-
- // Verify that the required fields are set.
- // We know that the email address is required as a default of rcube, so
- // we will default its value into any unfilled required fields.
- foreach ($this->prop["required_fields"] as $fld) {
- if (!isset($newentry[$fld])) {
- $newentry[$fld] = $newentry[$this->_map_field("email")];
- } // end if
- } // end foreach
-
- // Build the new entries DN.
- $dn = $this->prop["LDAP_rdn"]."=".$newentry[$this->prop["LDAP_rdn"]].",".$this->prop['base_dn'];
- $res = @ldap_add($this->conn, $dn, $newentry);
- if ($res === FALSE) {
- return false;
- } // end if
-
- return base64_encode($dn);
- }
-
-
- /**
- * Update a specific contact record
- *
- * @param mixed Record identifier
- * @param array Hash array with save data
- * @return boolean True on success, False on error
- */
- function update($id, $save_cols)
- {
- $record = $this->get_record($id, true);
- $result = $this->get_result();
- $record = $result->first();
-
- $newdata = array();
- $replacedata = array();
- $deletedata = array();
- foreach ($save_cols as $col => $val) {
- $fld = "";
- $fld = $this->_map_field($col);
- if ($fld != "") {
- // The field does exist compare it to the ldap record.
- if ($record[$col] != $val) {
- // Changed, but find out how.
- if (!isset($record[$col])) {
- // Field was not set prior, need to add it.
- $newdata[$fld] = $val;
- } // end if
- elseif ($val == "") {
- // Field supplied is empty, verify that it is not required.
- if (!in_array($fld, $this->prop["required_fields"])) {
- // It is not, safe to clear.
- $deletedata[$fld] = $record[$col];
- } // end if
- } // end elseif
- else {
- // The data was modified, save it out.
- $replacedata[$fld] = $val;
- } // end else
+ $host = idn_to_ascii(rcube_parse_host($host));
+ $this->_debug("C: Connect [$host".($this->prop['port'] ? ':'.$this->prop['port'] : '')."]");
+
+ if ($lc = @ldap_connect($host, $this->prop['port']))
+ {
+ if ($this->prop['use_tls']===true)
+ if (!ldap_start_tls($lc))
+ continue;
+
+ $this->_debug("S: OK");
+
+ ldap_set_option($lc, LDAP_OPT_PROTOCOL_VERSION, $this->prop['ldap_version']);
+ $this->prop['host'] = $host;
+ $this->conn = $lc;
+ break;
+ }
+ $this->_debug("S: NOT OK");
+ }
+
+ if (is_resource($this->conn))
+ {
+ $this->ready = true;
+
+ $bind_pass = $this->prop['bind_pass'];
+ $bind_user = $this->prop['bind_user'];
+ $bind_dn = $this->prop['bind_dn'];
+
+ $this->base_dn = $this->prop['base_dn'];
+ $this->groups_base_dn = ($this->prop['groups']['base_dn']) ?
+ $this->prop['groups']['base_dn'] : $this->base_dn;
+
+ // User specific access, generate the proper values to use.
+ if ($this->prop['user_specific']) {
+ // No password set, use the session password
+ if (empty($bind_pass)) {
+ $bind_pass = $RCMAIL->decrypt($_SESSION['password']);
+ }
+
+ // Get the pieces needed for variable replacement.
+ if ($fu = $RCMAIL->user->get_username())
+ list($u, $d) = explode('@', $fu);
+ else
+ $d = $this->mail_domain;
+
+ $dc = 'dc='.strtr($d, array('.' => ',dc=')); // hierarchal domain string
+
+ $replaces = array('%dc' => $dc, '%d' => $d, '%fu' => $fu, '%u' => $u);
+
+ if ($this->prop['search_base_dn'] && $this->prop['search_filter']) {
+ // Search for the dn to use to authenticate
+ $this->prop['search_base_dn'] = strtr($this->prop['search_base_dn'], $replaces);
+ $this->prop['search_filter'] = strtr($this->prop['search_filter'], $replaces);
+
+ $this->_debug("S: searching with base {$this->prop['search_base_dn']} for {$this->prop['search_filter']}");
+
+ $res = @ldap_search($this->conn, $this->prop['search_base_dn'], $this->prop['search_filter'], array('uid'));
+ if ($res && ($entry = ldap_first_entry($this->conn, $res))) {
+ $bind_dn = ldap_get_dn($this->conn, $entry);
+
+ $this->_debug("S: search returned dn: $bind_dn");
+
+ if ($bind_dn) {
+ $dn = ldap_explode_dn($bind_dn, 1);
+ $replaces['%dn'] = $dn[0];
+ }
+ }
+ }
+ // Replace the bind_dn and base_dn variables.
+ $bind_dn = strtr($bind_dn, $replaces);
+ $this->base_dn = strtr($this->base_dn, $replaces);
+ $this->groups_base_dn = strtr($this->groups_base_dn, $replaces);
+
+ if (empty($bind_user)) {
+ $bind_user = $u;
+ }
+ }
+
+ if (!empty($bind_pass)) {
+ if (!empty($bind_dn)) {
+ $this->ready = $this->_bind($bind_dn, $bind_pass);
+ }
+ else if (!empty($this->prop['auth_cid'])) {
+ $this->ready = $this->_sasl_bind($this->prop['auth_cid'], $bind_pass, $bind_user);
+ }
+ else {
+ $this->ready = $this->_sasl_bind($bind_user, $bind_pass);
+ }
+ }
+ }
+ else
+ raise_error(array('code' => 100, 'type' => 'ldap',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Could not connect to any LDAP server, last tried $host:{$this->prop[port]}"), true);
+
+ // See if the directory is writeable.
+ if ($this->prop['writable']) {
+ $this->readonly = false;
} // end if
- } // end if
- } // end foreach
-
- // Update the entry as required.
- $dn = base64_decode($id);
- if (!empty($deletedata)) {
- // Delete the fields.
- $res = @ldap_mod_del($this->conn, $dn, $deletedata);
- if ($res === FALSE) {
- return false;
- } // end if
- } // end if
+ }
+
+
+ /**
+ * Bind connection with (SASL-) user and password
+ *
+ * @param string $authc Authentication user
+ * @param string $pass Bind password
+ * @param string $authz Autorization user
+ *
+ * @return boolean True on success, False on error
+ */
+ private function _sasl_bind($authc, $pass, $authz=null)
+ {
+ if (!$this->conn) {
+ return false;
+ }
+
+ if (!function_exists('ldap_sasl_bind')) {
+ raise_error(array('code' => 100, 'type' => 'ldap',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Unable to bind: ldap_sasl_bind() not exists"),
+ true, true);
+ }
+
+ if (!empty($authz)) {
+ $authz = 'u:' . $authz;
+ }
+
+ if (!empty($this->prop['auth_method'])) {
+ $method = $this->prop['auth_method'];
+ }
+ else {
+ $method = 'DIGEST-MD5';
+ }
+
+ $this->_debug("C: Bind [mech: $method, authc: $authc, authz: $authz] [pass: $pass]");
+
+ if (ldap_sasl_bind($this->conn, NULL, $pass, $method, NULL, $authc, $authz)) {
+ $this->_debug("S: OK");
+ return true;
+ }
+
+ $this->_debug("S: ".ldap_error($this->conn));
+
+ raise_error(array(
+ 'code' => ldap_errno($this->conn), 'type' => 'ldap',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Bind failed for authcid=$authc ".ldap_error($this->conn)),
+ true);
- if (!empty($replacedata)) {
- // Replace the fields.
- $res = @ldap_mod_replace($this->conn, $dn, $replacedata);
- if ($res === FALSE) {
return false;
- } // end if
- } // end if
+ }
+
+
+ /**
+ * Bind connection with DN and password
+ *
+ * @param string Bind DN
+ * @param string Bind password
+ *
+ * @return boolean True on success, False on error
+ */
+ private function _bind($dn, $pass)
+ {
+ if (!$this->conn) {
+ return false;
+ }
+
+ $this->_debug("C: Bind [dn: $dn] [pass: $pass]");
+
+ if (@ldap_bind($this->conn, $dn, $pass)) {
+ $this->_debug("S: OK");
+ return true;
+ }
+
+ $this->_debug("S: ".ldap_error($this->conn));
+
+ raise_error(array(
+ 'code' => ldap_errno($this->conn), 'type' => 'ldap',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Bind failed for dn=$dn: ".ldap_error($this->conn)),
+ true);
- if (!empty($newdata)) {
- // Add the fields.
- $res = @ldap_mod_add($this->conn, $dn, $newdata);
- if ($res === FALSE) {
return false;
- } // end if
- } // end if
-
- return true;
- }
-
-
- /**
- * Mark one or more contact records as deleted
- *
- * @param array Record identifiers
- * @return boolean True on success, False on error
- */
- function delete($ids)
- {
- if (!is_array($ids)) {
- // Not an array, break apart the encoded DNs.
- $dns = explode(",", $ids);
- } // end if
-
- foreach ($dns as $id) {
- $dn = base64_decode($id);
- // Delete the record.
- $res = @ldap_delete($this->conn, $dn);
- if ($res === FALSE) {
+ }
+
+
+ /**
+ * Close connection to LDAP server
+ */
+ function close()
+ {
+ if ($this->conn)
+ {
+ $this->_debug("C: Close");
+ ldap_unbind($this->conn);
+ $this->conn = null;
+ }
+ }
+
+
+ /**
+ * Returns address book name
+ *
+ * @return string Address book name
+ */
+ function get_name()
+ {
+ return $this->prop['name'];
+ }
+
+
+ /**
+ * Set internal list page
+ *
+ * @param number $page Page number to list
+ */
+ function set_page($page)
+ {
+ $this->list_page = (int)$page;
+ }
+
+
+ /**
+ * Set internal page size
+ *
+ * @param number $size Number of messages to display on one page
+ */
+ function set_pagesize($size)
+ {
+ $this->page_size = (int)$size;
+ }
+
+
+ /**
+ * Save a search string for future listings
+ *
+ * @param string $filter Filter string
+ */
+ function set_search_set($filter)
+ {
+ $this->filter = $filter;
+ }
+
+
+ /**
+ * Getter for saved search properties
+ *
+ * @return mixed Search properties used by this class
+ */
+ function get_search_set()
+ {
+ return $this->filter;
+ }
+
+
+ /**
+ * Reset all saved results and search parameters
+ */
+ function reset()
+ {
+ $this->result = null;
+ $this->ldap_result = null;
+ $this->filter = '';
+ }
+
+
+ /**
+ * List the current set of contact records
+ *
+ * @param array List of cols to show
+ * @param int Only return this number of records
+ *
+ * @return array Indexed list of contact records, each a hash array
+ */
+ function list_records($cols=null, $subset=0)
+ {
+ // add general filter to query
+ if (!empty($this->prop['filter']) && empty($this->filter))
+ {
+ $filter = $this->prop['filter'];
+ $this->set_search_set($filter);
+ }
+
+ // exec LDAP search if no result resource is stored
+ if ($this->conn && !$this->ldap_result)
+ $this->_exec_search();
+
+ // count contacts for this user
+ $this->result = $this->count();
+
+ // we have a search result resource
+ if ($this->ldap_result && $this->result->count > 0)
+ {
+ // sorting still on the ldap server
+ if ($this->sort_col && $this->prop['scope'] !== 'base' && !$this->vlv_active)
+ ldap_sort($this->conn, $this->ldap_result, $this->sort_col);
+
+ // start and end of the page
+ $start_row = $this->vlv_active ? 0 : $this->result->first;
+ $start_row = $subset < 0 ? $start_row + $this->page_size + $subset : $start_row;
+ $last_row = $this->result->first + $this->page_size;
+ $last_row = $subset != 0 ? $start_row + abs($subset) : $last_row;
+
+ // get all entries from the ldap server
+ $entries = ldap_get_entries($this->conn, $this->ldap_result);
+
+ // filtering for group members
+ if ($this->groups and $this->group_id)
+ {
+ $count = 0;
+ $members = array();
+ foreach ($entries as $entry)
+ {
+ if ($this->group_members[self::dn_encode($entry['dn'])])
+ {
+ $members[] = $entry;
+ $count++;
+ }
+ }
+ $entries = $members;
+ $entries['count'] = $count;
+ $this->result->count = $count;
+ }
+
+ // filter entries for this page
+ for ($i = $start_row; $i < min($entries['count'], $last_row); $i++)
+ $this->result->add($this->_ldap2result($entries[$i]));
+ }
+ return $this->result;
+ }
+
+
+ /**
+ * Search contacts
+ *
+ * @param mixed $fields The field name of array of field names to search in
+ * @param mixed $value Search value (or array of values when $fields is array)
+ * @param boolean $strict True for strict, False for partial (fuzzy) matching
+ * @param boolean $select True if results are requested, False if count only
+ * @param boolean $nocount (Not used)
+ * @param array $required List of fields that cannot be empty
+ *
+ * @return array Indexed list of contact records and 'count' value
+ */
+ function search($fields, $value, $strict=false, $select=true, $nocount=false, $required=array())
+ {
+ // special treatment for ID-based search
+ if ($fields == 'ID' || $fields == $this->primary_key)
+ {
+ $ids = !is_array($value) ? explode(',', $value) : $value;
+ $result = new rcube_result_set();
+ foreach ($ids as $id)
+ {
+ if ($rec = $this->get_record($id, true))
+ {
+ $result->add($rec);
+ $result->count++;
+ }
+ }
+ return $result;
+ }
+
+ // use AND operator for advanced searches
+ $filter = is_array($value) ? '(&' : '(|';
+ $wc = !$strict && $this->prop['fuzzy_search'] ? '*' : '';
+
+ if ($fields == '*')
+ {
+ // search_fields are required for fulltext search
+ if (empty($this->prop['search_fields']))
+ {
+ $this->set_error(self::ERROR_SEARCH, 'nofulltextsearch');
+ $this->result = new rcube_result_set();
+ return $this->result;
+ }
+ if (is_array($this->prop['search_fields']))
+ {
+ foreach ($this->prop['search_fields'] as $field) {
+ $filter .= "($field=$wc" . $this->_quote_string($value) . "$wc)";
+ }
+ }
+ }
+ else
+ {
+ foreach ((array)$fields as $idx => $field) {
+ $val = is_array($value) ? $value[$idx] : $value;
+ if ($f = $this->_map_field($field)) {
+ $filter .= "($f=$wc" . $this->_quote_string($val) . "$wc)";
+ }
+ }
+ }
+ $filter .= ')';
+
+ // add required (non empty) fields filter
+ $req_filter = '';
+ foreach ((array)$required as $field)
+ if ($f = $this->_map_field($field))
+ $req_filter .= "($f=*)";
+
+ if (!empty($req_filter))
+ $filter = '(&' . $req_filter . $filter . ')';
+
+ // avoid double-wildcard if $value is empty
+ $filter = preg_replace('/\*+/', '*', $filter);
+
+ // add general filter to query
+ if (!empty($this->prop['filter']))
+ $filter = '(&(' . preg_replace('/^\(|\)$/', '', $this->prop['filter']) . ')' . $filter . ')';
+
+ // set filter string and execute search
+ $this->set_search_set($filter);
+ $this->_exec_search();
+
+ if ($select)
+ $this->list_records();
+ else
+ $this->result = $this->count();
+
+ return $this->result;
+ }
+
+
+ /**
+ * Count number of available contacts in database
+ *
+ * @return object rcube_result_set Resultset with values for 'count' and 'first'
+ */
+ function count()
+ {
+ $count = 0;
+ if ($this->conn && $this->ldap_result) {
+ $count = $this->vlv_active ? $this->vlv_count : ldap_count_entries($this->conn, $this->ldap_result);
+ } // end if
+ elseif ($this->conn) {
+ // We have a connection but no result set, attempt to get one.
+ if (empty($this->filter)) {
+ // The filter is not set, set it.
+ $this->filter = $this->prop['filter'];
+ } // end if
+ $this->_exec_search(true);
+ if ($this->ldap_result) {
+ $count = ldap_count_entries($this->conn, $this->ldap_result);
+ } // end if
+ } // end else
+
+ return new rcube_result_set($count, ($this->list_page-1) * $this->page_size);
+ }
+
+
+ /**
+ * Return the last result set
+ *
+ * @return object rcube_result_set Current resultset or NULL if nothing selected yet
+ */
+ function get_result()
+ {
+ return $this->result;
+ }
+
+
+ /**
+ * Get a specific contact record
+ *
+ * @param mixed Record identifier
+ * @param boolean Return as associative array
+ *
+ * @return mixed Hash array or rcube_result_set with all record fields
+ */
+ function get_record($dn, $assoc=false)
+ {
+ $res = null;
+ if ($this->conn && $dn)
+ {
+ $dn = self::dn_decode($dn);
+
+ $this->_debug("C: Read [dn: $dn] [(objectclass=*)]");
+
+ if ($this->ldap_result = @ldap_read($this->conn, $dn, '(objectclass=*)', array_values($this->fieldmap)))
+ $entry = ldap_first_entry($this->conn, $this->ldap_result);
+ else
+ $this->_debug("S: ".ldap_error($this->conn));
+
+ if ($entry && ($rec = ldap_get_attributes($this->conn, $entry)))
+ {
+ $this->_debug("S: OK"/* . print_r($rec, true)*/);
+
+ $rec = array_change_key_case($rec, CASE_LOWER);
+
+ // Add in the dn for the entry.
+ $rec['dn'] = $dn;
+ $res = $this->_ldap2result($rec);
+ $this->result = new rcube_result_set(1);
+ $this->result->add($res);
+ }
+ }
+
+ return $assoc ? $res : $this->result;
+ }
+
+
+ /**
+ * Check the given data before saving.
+ * If input not valid, the message to display can be fetched using get_error()
+ *
+ * @param array Assoziative array with data to save
+ *
+ * @return boolean True if input is valid, False if not.
+ */
+ public function validate($save_data)
+ {
+ // check for name input
+ if (empty($save_data['name'])) {
+ $this->set_error('warning', 'nonamewarning');
+ return false;
+ }
+
+ // validate e-mail addresses
+ return parent::validate($save_data);
+ }
+
+
+ /**
+ * Create a new contact record
+ *
+ * @param array Hash array with save data
+ *
+ * @return encoded record ID on success, False on error
+ */
+ function insert($save_cols)
+ {
+ // Map out the column names to their LDAP ones to build the new entry.
+ $newentry = array();
+ $newentry['objectClass'] = $this->prop['LDAP_Object_Classes'];
+ foreach ($this->fieldmap as $col => $fld) {
+ $val = $save_cols[$col];
+ if (is_array($val))
+ $val = array_filter($val); // remove empty entries
+ if ($fld && $val) {
+ // The field does exist, add it to the entry.
+ $newentry[$fld] = $val;
+ } // end if
+ } // end foreach
+
+ // Verify that the required fields are set.
+ $missing = null;
+ foreach ($this->prop['required_fields'] as $fld) {
+ if (!isset($newentry[$fld])) {
+ $missing[] = $fld;
+ }
+ }
+
+ // abort process if requiered fields are missing
+ // TODO: generate message saying which fields are missing
+ if ($missing) {
+ $this->set_error(self::ERROR_INCOMPLETE, 'formincomplete');
+ return false;
+ }
+
+ // Build the new entries DN.
+ $dn = $this->prop['LDAP_rdn'].'='.$this->_quote_string($newentry[$this->prop['LDAP_rdn']], true).','.$this->base_dn;
+
+ $this->_debug("C: Add [dn: $dn]: ".print_r($newentry, true));
+
+ $res = ldap_add($this->conn, $dn, $newentry);
+ if ($res === FALSE) {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return false;
+ } // end if
+
+ $this->_debug("S: OK");
+
+ $dn = self::dn_encode($dn);
+
+ // add new contact to the selected group
+ if ($this->groups)
+ $this->add_to_group($this->group_id, $dn);
+
+ return $dn;
+ }
+
+
+ /**
+ * Update a specific contact record
+ *
+ * @param mixed Record identifier
+ * @param array Hash array with save data
+ *
+ * @return boolean True on success, False on error
+ */
+ function update($id, $save_cols)
+ {
+ $record = $this->get_record($id, true);
+ $result = $this->get_result();
+ $record = $result->first();
+
+ $newdata = array();
+ $replacedata = array();
+ $deletedata = array();
+
+ // flatten composite fields in $record
+ if (is_array($record['address'])) {
+ foreach ($record['address'] as $i => $struct) {
+ foreach ($struct as $col => $val) {
+ $record[$col][$i] = $val;
+ }
+ }
+ }
+
+ foreach ($this->fieldmap as $col => $fld) {
+ $val = $save_cols[$col];
+ if ($fld) {
+ // remove empty array values
+ if (is_array($val))
+ $val = array_filter($val);
+ // The field does exist compare it to the ldap record.
+ if ($record[$col] != $val) {
+ // Changed, but find out how.
+ if (!isset($record[$col])) {
+ // Field was not set prior, need to add it.
+ $newdata[$fld] = $val;
+ } // end if
+ elseif ($val == '') {
+ // Field supplied is empty, verify that it is not required.
+ if (!in_array($fld, $this->prop['required_fields'])) {
+ // It is not, safe to clear.
+ $deletedata[$fld] = $record[$col];
+ } // end if
+ } // end elseif
+ else {
+ // The data was modified, save it out.
+ $replacedata[$fld] = $val;
+ } // end else
+ } // end if
+ } // end if
+ } // end foreach
+
+ $dn = self::dn_decode($id);
+
+ // Update the entry as required.
+ if (!empty($deletedata)) {
+ // Delete the fields.
+ $this->_debug("C: Delete [dn: $dn]: ".print_r($deletedata, true));
+ if (!ldap_mod_del($this->conn, $dn, $deletedata)) {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return false;
+ }
+ $this->_debug("S: OK");
+ } // end if
+
+ if (!empty($replacedata)) {
+ // Handle RDN change
+ if ($replacedata[$this->prop['LDAP_rdn']]) {
+ $newdn = $this->prop['LDAP_rdn'].'='
+ .$this->_quote_string($replacedata[$this->prop['LDAP_rdn']], true)
+ .','.$this->base_dn;
+ if ($dn != $newdn) {
+ $newrdn = $this->prop['LDAP_rdn'].'='
+ .$this->_quote_string($replacedata[$this->prop['LDAP_rdn']], true);
+ unset($replacedata[$this->prop['LDAP_rdn']]);
+ }
+ }
+ // Replace the fields.
+ if (!empty($replacedata)) {
+ $this->_debug("C: Replace [dn: $dn]: ".print_r($replacedata, true));
+ if (!ldap_mod_replace($this->conn, $dn, $replacedata)) {
+ $this->_debug("S: ".ldap_error($this->conn));
+ return false;
+ }
+ $this->_debug("S: OK");
+ } // end if
+ } // end if
+
+ if (!empty($newdata)) {
+ // Add the fields.
+ $this->_debug("C: Add [dn: $dn]: ".print_r($newdata, true));
+ if (!ldap_mod_add($this->conn, $dn, $newdata)) {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return false;
+ }
+ $this->_debug("S: OK");
+ } // end if
+
+ // Handle RDN change
+ if (!empty($newrdn)) {
+ $this->_debug("C: Rename [dn: $dn] [dn: $newrdn]");
+ if (!ldap_rename($this->conn, $dn, $newrdn, NULL, TRUE)) {
+ $this->_debug("S: ".ldap_error($this->conn));
+ return false;
+ }
+ $this->_debug("S: OK");
+
+ $dn = self::dn_encode($dn);
+ $newdn = self::dn_encode($newdn);
+
+ // change the group membership of the contact
+ if ($this->groups)
+ {
+ $group_ids = $this->get_record_groups($dn);
+ foreach ($group_ids as $group_id)
+ {
+ $this->remove_from_group($group_id, $dn);
+ $this->add_to_group($group_id, $newdn);
+ }
+ }
+
+ return $newdn;
+ }
+
+ return true;
+ }
+
+
+ /**
+ * Mark one or more contact records as deleted
+ *
+ * @param array Record identifiers
+ * @param boolean Remove record(s) irreversible (unsupported)
+ *
+ * @return boolean True on success, False on error
+ */
+ function delete($ids, $force=true)
+ {
+ if (!is_array($ids)) {
+ // Not an array, break apart the encoded DNs.
+ $ids = explode(',', $ids);
+ } // end if
+
+ foreach ($ids as $id) {
+ $dn = self::dn_decode($id);
+ $this->_debug("C: Delete [dn: $dn]");
+ // Delete the record.
+ $res = ldap_delete($this->conn, $dn);
+ if ($res === FALSE) {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return false;
+ } // end if
+ $this->_debug("S: OK");
+
+ // remove contact from all groups where he was member
+ if ($this->groups) {
+ $dn = self::dn_encode($dn);
+ $group_ids = $this->get_record_groups($dn);
+ foreach ($group_ids as $group_id) {
+ $this->remove_from_group($group_id, $dn);
+ }
+ }
+ } // end foreach
+
+ return count($ids);
+ }
+
+
+ /**
+ * Execute the LDAP search based on the stored credentials
+ */
+ private function _exec_search($count = false)
+ {
+ if ($this->ready)
+ {
+ $filter = $this->filter ? $this->filter : '(objectclass=*)';
+ $function = $this->prop['scope'] == 'sub' ? 'ldap_search' : ($this->prop['scope'] == 'base' ? 'ldap_read' : 'ldap_list');
+
+ $this->_debug("C: Search [$filter]");
+
+ // when using VLV, we get the total count by...
+ if (!$count && $function != 'ldap_read' && $this->prop['vlv']) {
+ // ...either reading numSubOrdinates attribute
+ if ($this->prop['numsub_filter'] && ($result_count = @$function($this->conn, $this->base_dn, $this->prop['numsub_filter'], array('numSubOrdinates'), 0, 0, 0))) {
+ $counts = ldap_get_entries($this->conn, $result_count);
+ for ($this->vlv_count = $j = 0; $j < $counts['count']; $j++)
+ $this->vlv_count += $counts[$j]['numsubordinates'][0];
+ $this->_debug("D: total numsubordinates = " . $this->vlv_count);
+ }
+ else // ...or by fetching all records dn and count them
+ $this->vlv_count = $this->_exec_search(true);
+
+ $this->vlv_active = $this->_vlv_set_controls();
+ }
+
+ // only fetch dn for count (should keep the payload low)
+ $attrs = $count ? array('dn') : array_values($this->fieldmap);
+ if ($this->ldap_result = @$function($this->conn, $this->base_dn, $filter,
+ $attrs, 0, (int)$this->prop['sizelimit'], (int)$this->prop['timelimit']))
+ {
+ $this->_debug("S: ".ldap_count_entries($this->conn, $this->ldap_result)." record(s)");
+ if ($err = ldap_errno($this->conn))
+ $this->_debug("S: Error: " .ldap_err2str($err));
+ return true;
+ }
+ else
+ {
+ $this->_debug("S: ".ldap_error($this->conn));
+ }
+ }
+
return false;
- } // end if
- } // end foreach
-
- return true;
- }
-
-
- /**
- * Execute the LDAP search based on the stored credentials
- *
- * @access private
- */
- function _exec_search()
- {
- if ($this->ready && $this->filter)
- {
- $function = $this->prop['scope'] == 'sub' ? 'ldap_search' : ($this->prop['scope'] == 'base' ? 'ldap_read' : 'ldap_list');
- $this->ldap_result = $function($this->conn, $this->prop['base_dn'], $this->filter, array_values($this->fieldmap), 0, 0);
- return true;
- }
- else
- return false;
- }
-
-
- /**
- * @access private
- */
- function _ldap2result($rec)
- {
- $out = array();
-
- if ($rec['dn'])
- $out[$this->primary_key] = base64_encode($rec['dn']);
-
- foreach ($this->fieldmap as $rf => $lf)
- {
- if ($rec[$lf]['count'])
- $out[$rf] = $rec[$lf][0];
- }
-
- return $out;
- }
-
-
- /**
- * @access private
- */
- function _map_field($field)
- {
- return $this->fieldmap[$field];
- }
-
-
- /**
- * @static
- */
- function quote_string($str)
- {
- return strtr($str, array('*'=>'\2a', '('=>'\28', ')'=>'\29', '\\'=>'\5c'));
- }
+ }
+
+ /**
+ * Set server controls for Virtual List View (paginated listing)
+ */
+ private function _vlv_set_controls()
+ {
+ $sort_ctrl = array('oid' => "1.2.840.113556.1.4.473", 'value' => $this->_sort_ber_encode((array)$this->prop['sort']));
+ $vlv_ctrl = array('oid' => "2.16.840.1.113730.3.4.9", 'value' => $this->_vlv_ber_encode(($offset = ($this->list_page-1) * $this->page_size + 1), $this->page_size), 'iscritical' => true);
+ $this->_debug("C: set controls sort=" . join(' ', unpack('H'.(strlen($sort_ctrl['value'])*2), $sort_ctrl['value'])) . " ({$this->sort_col});"
+ . " vlv=" . join(' ', (unpack('H'.(strlen($vlv_ctrl['value'])*2), $vlv_ctrl['value']))) . " ($offset)");
-}
+ if (!ldap_set_option($this->conn, LDAP_OPT_SERVER_CONTROLS, array($sort_ctrl, $vlv_ctrl))) {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SEARCH, 'vlvnotsupported');
+ return false;
+ }
+
+ return true;
+ }
+
+
+ /**
+ * Converts LDAP entry into an array
+ */
+ private function _ldap2result($rec)
+ {
+ $out = array();
+
+ if ($rec['dn'])
+ $out[$this->primary_key] = self::dn_encode($rec['dn']);
+
+ foreach ($this->fieldmap as $rf => $lf)
+ {
+ for ($i=0; $i < $rec[$lf]['count']; $i++) {
+ if (!($value = $rec[$lf][$i]))
+ continue;
+ if ($rf == 'email' && $this->mail_domain && !strpos($value, '@'))
+ $out[$rf][] = sprintf('%s@%s', $value, $this->mail_domain);
+ else if (in_array($rf, array('street','zipcode','locality','country','region')))
+ $out['address'][$i][$rf] = $value;
+ else if ($rec[$lf]['count'] > 1)
+ $out[$rf][] = $value;
+ else
+ $out[$rf] = $value;
+ }
+ }
+
+ return $out;
+ }
+
+
+ /**
+ * Return real field name (from fields map)
+ */
+ private function _map_field($field)
+ {
+ return $this->fieldmap[$field];
+ }
+
+
+ /**
+ * Returns unified attribute name (resolving aliases)
+ */
+ private static function _attr_name($name)
+ {
+ // list of known attribute aliases
+ $aliases = array(
+ 'gn' => 'givenname',
+ 'rfc822mailbox' => 'email',
+ 'userid' => 'uid',
+ 'emailaddress' => 'email',
+ 'pkcs9email' => 'email',
+ );
+ return isset($aliases[$name]) ? $aliases[$name] : $name;
+ }
+
+
+ /**
+ * Prints debug info to the log
+ */
+ private function _debug($str)
+ {
+ if ($this->debug)
+ write_log('ldap', $str);
+ }
+
+
+ /**
+ * Quotes attribute value string
+ *
+ * @param string $str Attribute value
+ * @param bool $dn True if the attribute is a DN
+ *
+ * @return string Quoted string
+ */
+ private static function _quote_string($str, $dn=false)
+ {
+ // take firt entry if array given
+ if (is_array($str))
+ $str = reset($str);
+
+ if ($dn)
+ $replace = array(','=>'\2c', '='=>'\3d', '+'=>'\2b', '<'=>'\3c',
+ '>'=>'\3e', ';'=>'\3b', '\\'=>'\5c', '"'=>'\22', '#'=>'\23');
+ else
+ $replace = array('*'=>'\2a', '('=>'\28', ')'=>'\29', '\\'=>'\5c',
+ '/'=>'\2f');
+
+ return strtr($str, $replace);
+ }
+
+
+ /**
+ * Setter for the current group
+ * (empty, has to be re-implemented by extending class)
+ */
+ function set_group($group_id)
+ {
+ if ($group_id)
+ {
+ if (!$this->group_cache)
+ $this->list_groups();
+
+ $cache_members = $this->group_cache[$group_id]['members'];
+
+ $members = array();
+ for ($i=0; $i<$cache_members["count"]; $i++)
+ {
+ if (!empty($cache_members[$i]))
+ $members[self::dn_encode($cache_members[$i])] = 1;
+ }
+ $this->group_members = $members;
+ $this->group_id = $group_id;
+ }
+ else
+ $this->group_id = 0;
+ }
+
+ /**
+ * List all active contact groups of this source
+ *
+ * @param string Optional search string to match group name
+ * @return array Indexed list of contact groups, each a hash array
+ */
+ function list_groups($search = null)
+ {
+ if (!$this->groups)
+ return array();
+
+ $base_dn = $this->groups_base_dn;
+ $filter = $this->prop['groups']['filter'];
+
+ $this->_debug("C: Search [$filter][dn: $base_dn]");
+
+ $res = @ldap_search($this->conn, $base_dn, $filter, array('cn', $this->prop['member_attr']));
+ if ($res === false)
+ {
+ $this->_debug("S: ".ldap_error($this->conn));
+ return array();
+ }
+
+ $ldap_data = ldap_get_entries($this->conn, $res);
+ $this->_debug("S: ".ldap_count_entries($this->conn, $res)." record(s)");
+
+ $groups = array();
+ $group_sortnames = array();
+ for ($i=0; $i<$ldap_data["count"]; $i++)
+ {
+ $group_name = $ldap_data[$i]['cn'][0];
+ if (!$search || strstr(strtolower($group_name), strtolower($search)))
+ {
+ $group_id = self::dn_encode($group_name);
+ $groups[$group_id]['ID'] = $group_id;
+ $groups[$group_id]['name'] = $group_name;
+ $groups[$group_id]['members'] = $ldap_data[$i][$this->prop['member_attr']];
+ $group_sortnames[] = strtolower($group_name);
+ }
+ }
+ array_multisort($group_sortnames, SORT_ASC, SORT_STRING, $groups);
+ $this->group_cache = $groups;
+
+ return $groups;
+ }
+
+ /**
+ * Create a contact group with the given name
+ *
+ * @param string The group name
+ * @return mixed False on error, array with record props in success
+ */
+ function create_group($group_name)
+ {
+ if (!$this->group_cache)
+ $this->list_groups();
+
+ $base_dn = $this->groups_base_dn;
+ $new_dn = "cn=$group_name,$base_dn";
+ $new_gid = self::dn_encode($group_name);
+
+ $new_entry = array(
+ 'objectClass' => $this->prop['groups']['object_classes'],
+ 'cn' => $group_name,
+ $this->prop['member_attr'] => '',
+ );
+ $this->_debug("C: Add [dn: $new_dn]: ".print_r($new_entry, true));
+ $res = ldap_add($this->conn, $new_dn, $new_entry);
+ if ($res === false)
+ {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return false;
+ }
+
+ $this->_debug("S: OK");
+
+ return array('id' => $new_gid, 'name' => $group_name);
+ }
+
+ /**
+ * Delete the given group and all linked group members
+ *
+ * @param string Group identifier
+ * @return boolean True on success, false if no data was changed
+ */
+ function delete_group($group_id)
+ {
+ if (!$this->group_cache)
+ $this->list_groups();
+
+ $base_dn = $this->groups_base_dn;
+ $group_name = $this->group_cache[$group_id]['name'];
+ $del_dn = "cn=$group_name,$base_dn";
+
+ $this->_debug("C: Delete [dn: $del_dn]");
+
+ $res = ldap_delete($this->conn, $del_dn);
+ if ($res === false)
+ {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return false;
+ }
+
+ $this->_debug("S: OK");
+
+ return true;
+ }
+
+ /**
+ * Rename a specific contact group
+ *
+ * @param string Group identifier
+ * @param string New name to set for this group
+ * @param string New group identifier (if changed, otherwise don't set)
+ * @return boolean New name on success, false if no data was changed
+ */
+ function rename_group($group_id, $new_name, &$new_gid)
+ {
+ if (!$this->group_cache)
+ $this->list_groups();
+
+ $base_dn = $this->groups_base_dn;
+ $group_name = $this->group_cache[$group_id]['name'];
+ $old_dn = "cn=$group_name,$base_dn";
+ $new_rdn = "cn=$new_name";
+ $new_gid = self::dn_encode($new_name);
+
+ $this->_debug("C: Rename [dn: $old_dn] [dn: $new_rdn]");
+
+ $res = ldap_rename($this->conn, $old_dn, $new_rdn, NULL, TRUE);
+ if ($res === false)
+ {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return false;
+ }
+
+ $this->_debug("S: OK");
+
+ return $new_name;
+ }
+
+ /**
+ * Add the given contact records the a certain group
+ *
+ * @param string Group identifier
+ * @param array List of contact identifiers to be added
+ * @return int Number of contacts added
+ */
+ function add_to_group($group_id, $contact_ids)
+ {
+ if (!$this->group_cache)
+ $this->list_groups();
+
+ $base_dn = $this->groups_base_dn;
+ $group_name = $this->group_cache[$group_id]['name'];
+ $member_attr = $this->prop['member_attr'];
+ $group_dn = "cn=$group_name,$base_dn";
+
+ $new_attrs = array();
+ foreach (explode(",", $contact_ids) as $id)
+ $new_attrs[$member_attr][] = self::dn_decode($id);
+
+ $this->_debug("C: Add [dn: $group_dn]: ".print_r($new_attrs, true));
+
+ $res = ldap_mod_add($this->conn, $group_dn, $new_attrs);
+ if ($res === false)
+ {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return 0;
+ }
+
+ $this->_debug("S: OK");
+
+ return count($new_attrs['member']);
+ }
+
+ /**
+ * Remove the given contact records from a certain group
+ *
+ * @param string Group identifier
+ * @param array List of contact identifiers to be removed
+ * @return int Number of deleted group members
+ */
+ function remove_from_group($group_id, $contact_ids)
+ {
+ if (!$this->group_cache)
+ $this->list_groups();
+
+ $base_dn = $this->groups_base_dn;
+ $group_name = $this->group_cache[$group_id]['name'];
+ $member_attr = $this->prop['member_attr'];
+ $group_dn = "cn=$group_name,$base_dn";
+
+ $del_attrs = array();
+ foreach (explode(",", $contact_ids) as $id)
+ $del_attrs[$member_attr][] = self::dn_decode($id);
+
+ $this->_debug("C: Delete [dn: $group_dn]: ".print_r($del_attrs, true));
+
+ $res = ldap_mod_del($this->conn, $group_dn, $del_attrs);
+ if ($res === false)
+ {
+ $this->_debug("S: ".ldap_error($this->conn));
+ $this->set_error(self::ERROR_SAVING, 'errorsaving');
+ return 0;
+ }
+
+ $this->_debug("S: OK");
+
+ return count($del_attrs['member']);
+ }
+
+ /**
+ * Get group assignments of a specific contact record
+ *
+ * @param mixed Record identifier
+ *
+ * @return array List of assigned groups as ID=>Name pairs
+ * @since 0.5-beta
+ */
+ function get_record_groups($contact_id)
+ {
+ if (!$this->groups)
+ return array();
+
+ $base_dn = $this->groups_base_dn;
+ $contact_dn = self::dn_decode($contact_id);
+ $member_attr = $this->prop['member_attr'];
+ $filter = strtr("($member_attr=$contact_dn)", array('\\' => '\\\\'));
+
+ $this->_debug("C: Search [$filter][dn: $base_dn]");
+
+ $res = @ldap_search($this->conn, $base_dn, $filter, array('cn'));
+ if ($res === false)
+ {
+ $this->_debug("S: ".ldap_error($this->conn));
+ return array();
+ }
+ $ldap_data = ldap_get_entries($this->conn, $res);
+ $this->_debug("S: ".ldap_count_entries($this->conn, $res)." record(s)");
+
+ $groups = array();
+ for ($i=0; $i<$ldap_data["count"]; $i++)
+ {
+ $group_name = $ldap_data[$i]['cn'][0];
+ $group_id = self::dn_encode($group_name);
+ $groups[$group_id] = $group_id;
+ }
+ return $groups;
+ }
+
+
+ /**
+ * Generate BER encoded string for Virtual List View option
+ *
+ * @param integer List offset (first record)
+ * @param integer Records per page
+ * @return string BER encoded option value
+ */
+ private function _vlv_ber_encode($offset, $rpp)
+ {
+ # this string is ber-encoded, php will prefix this value with:
+ # 04 (octet string) and 10 (length of 16 bytes)
+ # the code behind this string is broken down as follows:
+ # 30 = ber sequence with a length of 0e (14) bytes following
+ # 20 = type integer (in two's complement form) with 2 bytes following (beforeCount): 01 00 (ie 0)
+ # 20 = type integer (in two's complement form) with 2 bytes following (afterCount): 01 18 (ie 25-1=24)
+ # a0 = type context-specific/constructed with a length of 06 (6) bytes following
+ # 20 = type integer with 2 bytes following (offset): 01 01 (ie 1)
+ # 20 = type integer with 2 bytes following (contentCount): 01 00
+ # the following info was taken from the ISO/IEC 8825-1:2003 x.690 standard re: the
+ # encoding of integer values (note: these values are in
+ # two-complement form so since offset will never be negative bit 8 of the
+ # leftmost octet should never by set to 1):
+ # 8.3.2: If the contents octets of an integer value encoding consist
+ # of more than one octet, then the bits of the first octet (rightmost) and bit 8
+ # of the second (to the left of first octet) octet:
+ # a) shall not all be ones; and
+ # b) shall not all be zero
+
+ # construct the string from right to left
+ $str = "020100"; # contentCount
+
+ $ber_val = self::_ber_encode_int($offset); // returns encoded integer value in hex format
+
+ // calculate octet length of $ber_val
+ $str = self::_ber_addseq($ber_val, '02') . $str;
+
+ // now compute length over $str
+ $str = self::_ber_addseq($str, 'a0');
+
+ // now tack on records per page
+ $str = sprintf("0201000201%02x", min(255, $rpp)-1) . $str;
+
+ // now tack on sequence identifier and length
+ $str = self::_ber_addseq($str, '30');
+
+ return pack('H'.strlen($str), $str);
+ }
+
+
+ /**
+ * create ber encoding for sort control
+ *
+ * @param array List of cols to sort by
+ * @return string BER encoded option value
+ */
+ private function _sort_ber_encode($sortcols)
+ {
+ $str = '';
+ foreach (array_reverse((array)$sortcols) as $col) {
+ $ber_val = self::_string2hex($col);
+
+ # 30 = ber sequence with a length of octet value
+ # 04 = octet string with a length of the ascii value
+ $oct = self::_ber_addseq($ber_val, '04');
+ $str = self::_ber_addseq($oct, '30') . $str;
+ }
+
+ // now tack on sequence identifier and length
+ $str = self::_ber_addseq($str, '30');
+
+ return pack('H'.strlen($str), $str);
+ }
+
+ /**
+ * Add BER sequence with correct length and the given identifier
+ */
+ private static function _ber_addseq($str, $identifier)
+ {
+ $len = dechex(strlen($str)/2);
+ if (strlen($len) % 2 != 0)
+ $len = '0'.$len;
+
+ return $identifier . $len . $str;
+ }
+
+ /**
+ * Returns BER encoded integer value in hex format
+ */
+ private static function _ber_encode_int($offset)
+ {
+ $val = dechex($offset);
+ $prefix = '';
+
+ // check if bit 8 of high byte is 1
+ if (preg_match('/^[89abcdef]/', $val))
+ $prefix = '00';
+
+ if (strlen($val)%2 != 0)
+ $prefix .= '0';
+
+ return $prefix . $val;
+ }
+
+ /**
+ * Returns ascii string encoded in hex
+ */
+ private static function _string2hex($str)
+ {
+ $hex = '';
+ for ($i=0; $i < strlen($str); $i++)
+ $hex .= dechex(ord($str[$i]));
+ return $hex;
+ }
+
+ /**
+ * HTML-safe DN string encoding
+ *
+ * @param string $str DN string
+ *
+ * @return string Encoded HTML identifier string
+ */
+ static function dn_encode($str)
+ {
+ // @TODO: to make output string shorter we could probably
+ // remove dc=* items from it
+ return rtrim(strtr(base64_encode($str), '+/', '-_'), '=');
+ }
+
+ /**
+ * Decodes DN string encoded with _dn_encode()
+ *
+ * @param string $str Encoded HTML identifier string
+ *
+ * @return string DN string
+ */
+ static function dn_decode($str)
+ {
+ $str = str_pad(strtr($str, '-_', '+/'), strlen($str) % 4, '=', STR_PAD_RIGHT);
+ return base64_decode($str);
+ }
+}