diff options
Diffstat (limited to 'program/lib/Roundcube/rcube_ldap.php')
| -rw-r--r-- | program/lib/Roundcube/rcube_ldap.php | 2352 |
1 files changed, 2352 insertions, 0 deletions
diff --git a/program/lib/Roundcube/rcube_ldap.php b/program/lib/Roundcube/rcube_ldap.php new file mode 100644 index 000000000..34e37e3b9 --- /dev/null +++ b/program/lib/Roundcube/rcube_ldap.php @@ -0,0 +1,2352 @@ +<?php + +/* + +-----------------------------------------------------------------------+ + | program/include/rcube_ldap.php | + | | + | This file is part of the Roundcube Webmail client | + | Copyright (C) 2006-2012, The Roundcube Dev Team | + | Copyright (C) 2011-2012, Kolab Systems AG | + | | + | Licensed under the GNU General Public License version 3 or | + | any later version with exceptions for skins & plugins. | + | See the README file for a full license statement. | + | | + | PURPOSE: | + | Interface to an LDAP address directory | + | | + +-----------------------------------------------------------------------+ + | Author: Thomas Bruederli <roundcube@gmail.com> | + | Andreas Dick <andudi (at) gmx (dot) ch> | + | Aleksander Machniak <machniak@kolabsys.com> | + +-----------------------------------------------------------------------+ +*/ + + +/** + * Model class to access an LDAP address directory + * + * @package Framework + * @subpackage Addressbook + */ +class rcube_ldap extends rcube_addressbook +{ + /** public properties */ + public $primary_key = 'ID'; + public $groups = false; + public $readonly = true; + public $ready = false; + public $group_id = 0; + public $coltypes = array(); + + /** private properties */ + protected $conn; + protected $prop = array(); + protected $fieldmap = array(); + protected $sub_filter; + protected $filter = ''; + protected $result = null; + protected $ldap_result = null; + protected $mail_domain = ''; + protected $debug = false; + + private $base_dn = ''; + private $groups_base_dn = ''; + private $group_url = null; + private $cache; + + private $vlv_active = false; + private $vlv_count = 0; + + + /** + * Object constructor + * + * @param array $p LDAP connection properties + * @param boolean $debug Enables debug mode + * @param string $mail_domain Current user mail domain name + */ + function __construct($p, $debug = false, $mail_domain = null) + { + $this->prop = $p; + + if (isset($p['searchonly'])) + $this->searchonly = $p['searchonly']; + + // check if groups are configured + if (is_array($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'])) + $this->prop['member_attr'] = 'member'; + // set default name attribute to cn + if (empty($this->prop['groups']['name_attr'])) + $this->prop['groups']['name_attr'] = 'cn'; + if (empty($this->prop['groups']['scope'])) + $this->prop['groups']['scope'] = 'sub'; + } + + // fieldmap property is given + if (is_array($p['fieldmap'])) { + foreach ($p['fieldmap'] as $rf => $lf) + $this->fieldmap[$rf] = $this->_attr_name(strtolower($lf)); + } + else if (!empty($p)) { + // read deprecated *_field properties to remain backwards compatible + foreach ($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 $colv => $lfv) { + list($col, $type) = explode(':', $colv); + list($lf, $limit, $delim) = explode(':', $lfv); + + if ($limit == '*') $limit = null; + else $limit = max(1, intval($limit)); + + if (!is_array($this->coltypes[$col])) { + $subtypes = $type ? array($type) : null; + $this->coltypes[$col] = array('limit' => $limit, 'subtypes' => $subtypes, 'attributes' => array($lf)); + } + elseif ($type) { + $this->coltypes[$col]['subtypes'][] = $type; + $this->coltypes[$col]['attributes'][] = $lf; + $this->coltypes[$col]['limit'] += $limit; + } + + if ($delim) + $this->coltypes[$col]['serialized'][$type] = $delim; + + $this->fieldmap[$colv] = $lf; + } + + // support for composite address + if ($this->coltypes['street'] && $this->coltypes['locality']) { + $this->coltypes['address'] = array( + 'limit' => max(1, $this->coltypes['locality']['limit'] + $this->coltypes['address']['limit']), + 'subtypes' => array_merge((array)$this->coltypes['address']['subtypes'], (array)$this->coltypes['locality']['subtypes']), + 'childs' => array(), + ) + (array)$this->coltypes['address']; + + foreach (array('street','locality','zipcode','region','country') as $childcol) { + if ($this->coltypes[$childcol]) { + $this->coltypes['address']['childs'][$childcol] = array('type' => 'text'); + unset($this->coltypes[$childcol]); // remove address child col from global coltypes list + } + } + + // at least one address type must be specified + if (empty($this->coltypes['address']['subtypes'])) { + $this->coltypes['address']['subtypes'] = array('home'); + } + } + else if ($this->coltypes['address']) { + $this->coltypes['address'] += array('type' => 'textarea', 'childs' => null, 'size' => 40); + + // 'serialized' means the UI has to present a composite address field + if ($this->coltypes['address']['serialized']) { + $childprop = array('type' => 'text'); + $this->coltypes['address']['type'] = 'composite'; + $this->coltypes['address']['childs'] = array('street' => $childprop, 'locality' => $childprop, 'zipcode' => $childprop, 'country' => $childprop); + } + } + + // make sure 'required_fields' is an array + if (!is_array($this->prop['required_fields'])) { + $this->prop['required_fields'] = (array) $this->prop['required_fields']; + } + + // make sure LDAP_rdn field is required + if (!empty($this->prop['LDAP_rdn']) && !in_array($this->prop['LDAP_rdn'], $this->prop['required_fields']) + && !in_array($this->prop['LDAP_rdn'], array_keys((array)$this->prop['autovalues']))) { + $this->prop['required_fields'][] = $this->prop['LDAP_rdn']; + } + + foreach ($this->prop['required_fields'] as $key => $val) { + $this->prop['required_fields'][$key] = $this->_attr_name(strtolower($val)); + } + + // Build sub_fields filter + if (!empty($this->prop['sub_fields']) && is_array($this->prop['sub_fields'])) { + $this->sub_filter = ''; + foreach ($this->prop['sub_fields'] as $attr => $class) { + if (!empty($class)) { + $class = is_array($class) ? array_pop($class) : $class; + $this->sub_filter .= '(objectClass=' . $class . ')'; + } + } + if (count($this->prop['sub_fields']) > 1) { + $this->sub_filter = '(|' . $this->sub_filter . ')'; + } + } + + $this->sort_col = is_array($p['sort']) ? $p['sort'][0] : $p['sort']; + $this->debug = $debug; + $this->mail_domain = $mail_domain; + + // initialize cache + $rcube = rcube::get_instance(); + $this->cache = $rcube->get_cache('LDAP.' . asciiwords($this->prop['name']), 'db', 600); + + $this->_connect(); + } + + + /** + * Establish a connection to the LDAP server + */ + private function _connect() + { + $rcube = rcube::get_instance(); + + if (!function_exists('ldap_connect')) + rcube::raise_error(array('code' => 100, 'type' => 'ldap', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "No ldap support in this installation of PHP"), + true, true); + + if (is_resource($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) + { + $host = rcube_utils::idn_to_ascii(rcube_utils::parse_host($host)); + $hostname = $host.($this->prop['port'] ? ':'.$this->prop['port'] : ''); + + $this->_debug("C: Connect [$hostname] [{$this->prop['name']}]"); + + if ($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 = $lc; + + if (isset($this->prop['referrals'])) + ldap_set_option($lc, LDAP_OPT_REFERRALS, $this->prop['referrals']); + break; + } + $this->_debug("S: NOT OK"); + } + + // See if the directory is writeable. + if ($this->prop['writable']) { + $this->readonly = false; + } + + if (!is_resource($this->conn)) { + rcube::raise_error(array('code' => 100, 'type' => 'ldap', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "Could not connect to any LDAP server, last tried $hostname"), true); + + return false; + } + + $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 = $rcube->decrypt($_SESSION['password']); + } + + // Get the pieces needed for variable replacement. + if ($fu = $rcube->get_user_name()) + list($u, $d) = explode('@', $fu); + else + $d = $this->mail_domain; + + $dc = 'dc='.strtr($d, array('.' => ',dc=')); // hierarchal domain string + + $replaces = array('%dn' => '', '%dc' => $dc, '%d' => $d, '%fu' => $fu, '%u' => $u); + + if ($this->prop['search_base_dn'] && $this->prop['search_filter']) { + if (!empty($this->prop['search_bind_dn']) && !empty($this->prop['search_bind_pw'])) { + $this->bind($this->prop['search_bind_dn'], $this->prop['search_bind_pw']); + } + + // 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) { + if (($entry = ldap_first_entry($this->conn, $res)) + && ($bind_dn = ldap_get_dn($this->conn, $entry)) + ) { + $this->_debug("S: search returned dn: $bind_dn"); + $dn = ldap_explode_dn($bind_dn, 1); + $replaces['%dn'] = $dn[0]; + } + } + else { + $this->_debug("S: ".ldap_error($this->conn)); + } + + // DN not found + if (empty($replaces['%dn'])) { + if (!empty($this->prop['search_dn_default'])) + $replaces['%dn'] = $this->prop['search_dn_default']; + else { + rcube::raise_error(array( + 'code' => 100, 'type' => 'ldap', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "DN not found using LDAP search."), true); + return false; + } + } + } + + // 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)) { + $this->ready = true; + } + else { + if (!empty($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); + } + } + + return $this->ready; + } + + + /** + * Bind connection with (SASL-) user and password + * + * @param string $authc Authentication user + * @param string $pass Bind password + * @param string $authz Autorization user + * + * @return boolean True on success, False on error + */ + public function sasl_bind($authc, $pass, $authz=null) + { + if (!$this->conn) { + return false; + } + + if (!function_exists('ldap_sasl_bind')) { + rcube::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)); + + rcube::raise_error(array( + 'code' => ldap_errno($this->conn), 'type' => 'ldap', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "Bind failed for authcid=$authc ".ldap_error($this->conn)), + true); + + return false; + } + + + /** + * Bind connection with DN and password + * + * @param string Bind DN + * @param string Bind password + * + * @return boolean True on success, False on error + */ + public function bind($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)); + + rcube::raise_error(array( + 'code' => ldap_errno($this->conn), 'type' => 'ldap', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "Bind failed for dn=$dn: ".ldap_error($this->conn)), + true); + + return false; + } + + + /** + * Close connection to LDAP server + */ + function close() + { + if ($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 sort settings + * + * @param string $sort_col Sort column + * @param string $sort_order Sort order + */ + function set_sort_order($sort_col, $sort_order = null) + { + if ($this->coltypes[$sort_col]['attributes']) + $this->sort_col = $this->coltypes[$sort_col]['attributes'][0]; + } + + + /** + * 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, $subset=0) + { + if ($this->prop['searchonly'] && empty($this->filter) && !$this->group_id) + { + $this->result = new rcube_result_set(0); + $this->result->searchonly = true; + return $this->result; + } + + // fetch group members recursively + if ($this->group_id && $this->group_data['dn']) + { + $entries = $this->list_group_members($this->group_data['dn']); + + // make list of entries unique and sort it + $seen = array(); + foreach ($entries as $i => $rec) { + if ($seen[$rec['dn']]++) + unset($entries[$i]); + } + usort($entries, array($this, '_entry_sort_cmp')); + + $entries['count'] = count($entries); + $this->result = new rcube_result_set($entries['count'], ($this->list_page-1) * $this->page_size); + } + else + { + // add general filter to query + if (!empty($this->prop['filter']) && empty($this->filter)) + $this->set_search_set($this->prop['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); + + // get all entries from the ldap server + $entries = ldap_get_entries($this->conn, $this->ldap_result); + } + + } // end else + + // 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) : $last_row; + + // filter entries for this page + for ($i = $start_row; $i < min($entries['count'], $last_row); $i++) + $this->result->add($this->_ldap2result($entries[$i])); + + return $this->result; + } + + /** + * Get all members of the given group + * + * @param string Group DN + * @param array Group entries (if called recursively) + * @return array Accumulated group members + */ + function list_group_members($dn, $count = false, $entries = null) + { + $group_members = array(); + + // fetch group object + if (empty($entries)) { + $result = @ldap_read($this->conn, $dn, '(objectClass=*)', array('dn','objectClass','member','uniqueMember','memberURL')); + if ($result === false) + { + $this->_debug("S: ".ldap_error($this->conn)); + return $group_members; + } + + $entries = @ldap_get_entries($this->conn, $result); + } + + for ($i=0; $i < $entries['count']; $i++) + { + $entry = $entries[$i]; + + if (empty($entry['objectclass'])) + continue; + + foreach ((array)$entry['objectclass'] as $objectclass) + { + switch (strtolower($objectclass)) { + case "group": + case "groupofnames": + case "kolabgroupofnames": + $group_members = array_merge($group_members, $this->_list_group_members($dn, $entry, 'member', $count)); + break; + case "groupofuniquenames": + case "kolabgroupofuniquenames": + $group_members = array_merge($group_members, $this->_list_group_members($dn, $entry, 'uniquemember', $count)); + break; + case "groupofurls": + $group_members = array_merge($group_members, $this->_list_group_memberurl($dn, $entry, $count)); + break; + } + } + + if ($this->prop['sizelimit'] && count($group_members) > $this->prop['sizelimit']) + break; + } + + return array_filter($group_members); + } + + /** + * Fetch members of the given group entry from server + * + * @param string Group DN + * @param array Group entry + * @param string Member attribute to use + * @return array Accumulated group members + */ + private function _list_group_members($dn, $entry, $attr, $count) + { + // Use the member attributes to return an array of member ldap objects + // NOTE that the member attribute is supposed to contain a DN + $group_members = array(); + if (empty($entry[$attr])) + return $group_members; + + // read these attributes for all members + $attrib = $count ? array('dn') : array_values($this->fieldmap); + $attrib[] = 'objectClass'; + $attrib[] = 'member'; + $attrib[] = 'uniqueMember'; + $attrib[] = 'memberURL'; + + for ($i=0; $i < $entry[$attr]['count']; $i++) + { + if (empty($entry[$attr][$i])) + continue; + + $result = @ldap_read($this->conn, $entry[$attr][$i], '(objectclass=*)', + $attrib, 0, (int)$this->prop['sizelimit'], (int)$this->prop['timelimit']); + + $members = @ldap_get_entries($this->conn, $result); + if ($members == false) + { + $this->_debug("S: ".ldap_error($this->conn)); + $members = array(); + } + + // for nested groups, call recursively + $nested_group_members = $this->list_group_members($entry[$attr][$i], $count, $members); + + unset($members['count']); + $group_members = array_merge($group_members, array_filter($members), $nested_group_members); + } + + return $group_members; + } + + /** + * List members of group class groupOfUrls + * + * @param string Group DN + * @param array Group entry + * @param boolean True if only used for counting + * @return array Accumulated group members + */ + private function _list_group_memberurl($dn, $entry, $count) + { + $group_members = array(); + + for ($i=0; $i < $entry['memberurl']['count']; $i++) + { + // extract components from url + if (!preg_match('!ldap:///([^\?]+)\?\?(\w+)\?(.*)$!', $entry['memberurl'][$i], $m)) + continue; + + // add search filter if any + $filter = $this->filter ? '(&(' . $m[3] . ')(' . $this->filter . '))' : $m[3]; + $func = $m[2] == 'sub' ? 'ldap_search' : ($m[2] == 'base' ? 'ldap_read' : 'ldap_list'); + + $attrib = $count ? array('dn') : array_values($this->fieldmap); + if ($result = @$func($this->conn, $m[1], $filter, + $attrib, 0, (int)$this->prop['sizelimit'], (int)$this->prop['timelimit']) + ) { + $this->_debug("S: ".ldap_count_entries($this->conn, $result)." record(s) for ".$m[1]); + } + else { + $this->_debug("S: ".ldap_error($this->conn)); + return $group_members; + } + + $entries = @ldap_get_entries($this->conn, $result); + for ($j = 0; $j < $entries['count']; $j++) + { + if ($nested_group_members = $this->list_group_members($entries[$j]['dn'], $count)) + $group_members = array_merge($group_members, $nested_group_members); + else + $group_members[] = $entries[$j]; + } + } + + return $group_members; + } + + /** + * Callback for sorting entries + */ + function _entry_sort_cmp($a, $b) + { + return strcmp($a[$this->sort_col][0], $b[$this->sort_col][0]); + } + + + /** + * 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 int $mode Matching mode: + * 0 - partial (*abc*), + * 1 - strict (=), + * 2 - prefix (abc*) + * @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, $mode=0, $select=true, $nocount=false, $required=array()) + { + $mode = intval($mode); + + // 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 VLV pseudo-search for autocompletion + $rcube = rcube::get_instance(); + $list_fields = $rcube->config->get('contactlist_fields'); + + if ($this->prop['vlv_search'] && $this->conn && join(',', (array)$fields) == join(',', $list_fields)) + { + // add general filter to query + if (!empty($this->prop['filter']) && empty($this->filter)) + $this->set_search_set($this->prop['filter']); + + // set VLV controls with encoded search string + $this->_vlv_set_controls($this->prop, $this->list_page, $this->page_size, $value); + + $function = $this->_scope2func($this->prop['scope']); + $this->ldap_result = @$function($this->conn, $this->base_dn, $this->filter ? $this->filter : '(objectclass=*)', + array_values($this->fieldmap), 0, $this->page_size, (int)$this->prop['timelimit']); + + $this->result = new rcube_result_set(0); + + if (!$this->ldap_result) { + $this->_debug("S: ".ldap_error($this->conn)); + return $this->result; + } + + $this->_debug("S: ".ldap_count_entries($this->conn, $this->ldap_result)." record(s)"); + + // get all entries of this page and post-filter those that really match the query + $search = mb_strtolower($value); + $entries = ldap_get_entries($this->conn, $this->ldap_result); + + for ($i = 0; $i < $entries['count']; $i++) { + $rec = $this->_ldap2result($entries[$i]); + foreach ($fields as $f) { + foreach ((array)$rec[$f] as $val) { + $val = mb_strtolower($val); + switch ($mode) { + case 1: + $got = ($val == $search); + break; + case 2: + $got = ($search == substr($val, 0, strlen($search))); + break; + default: + $got = (strpos($val, $search) !== false); + break; + } + + if ($got) { + $this->result->add($rec); + $this->result->count++; + break 2; + } + } + } + } + + return $this->result; + } + + // use AND operator for advanced searches + $filter = is_array($value) ? '(&' : '(|'; + // set wildcards + $wp = $ws = ''; + if (!empty($this->prop['fuzzy_search']) && $mode != 1) { + $ws = '*'; + if (!$mode) { + $wp = '*'; + } + } + + if ($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=$wp" . $this->_quote_string($value) . "$ws)"; + } + } + } + else + { + foreach ((array)$fields as $idx => $field) { + $val = is_array($value) ? $value[$idx] : $value; + if ($attrs = $this->_map_field($field)) { + if (count($attrs) > 1) + $filter .= '(|'; + foreach ($attrs as $f) + $filter .= "($f=$wp" . $this->_quote_string($val) . "$ws)"; + if (count($attrs) > 1) + $filter .= ')'; + } + } + } + $filter .= ')'; + + // add required (non empty) fields filter + $req_filter = ''; + foreach ((array)$required as $field) { + if ($attrs = $this->_map_field($field)) { + if (count($attrs) > 1) + $req_filter .= '(|'; + foreach ($attrs as $f) + $req_filter .= "($f=*)"; + if (count($attrs) > 1) + $req_filter .= ')'; + } + } + + if (!empty($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, $this->ldap_result); + } + else if ($this->group_id && $this->group_data['dn']) { + $count = count($this->list_group_members($this->group_data['dn'], true)); + } + else if ($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']; + } + + $count = (int) $this->_exec_search(true); + } + + return new rcube_result_set($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 = $this->result = null; + + if ($this->conn && $dn) + { + $dn = self::dn_decode($dn); + + $this->_debug("C: Read [dn: $dn] [(objectclass=*)]"); + + if ($ldap_result = @ldap_read($this->conn, $dn, '(objectclass=*)', array_values($this->fieldmap))) { + $this->_debug("S: OK"); + + $entry = ldap_first_entry($this->conn, $ldap_result); + + if ($entry && ($rec = ldap_get_attributes($this->conn, $entry))) { + $rec = array_change_key_case($rec, CASE_LOWER); + } + } + else { + $this->_debug("S: ".ldap_error($this->conn)); + } + + // Use ldap_list to get subentries like country (c) attribute (#1488123) + if (!empty($rec) && $this->sub_filter) { + if ($entries = $this->ldap_list($dn, $this->sub_filter, array_keys($this->prop['sub_fields']))) { + foreach ($entries as $entry) { + $lrec = array_change_key_case($entry, CASE_LOWER); + $rec = array_merge($lrec, $rec); + } + } + } + + if (!empty($rec)) { + // Add in the dn for the entry. + $rec['dn'] = $dn; + $res = $this->_ldap2result($rec); + $this->result = new rcube_result_set(); + $this->result->add($res); + } + } + + return $assoc ? $res : $this->result; + } + + + /** + * Check the given data before saving. + * If input not valid, the message to display can be fetched using get_error() + * + * @param array Assoziative array with data to save + * @param boolean Try to fix/complete record automatically + * @return boolean True if input is valid, False if not. + */ + public function validate(&$save_data, $autofix = false) + { + // validate e-mail addresses + if (!parent::validate($save_data, $autofix)) { + return false; + } + + // check for name input + if (empty($save_data['name'])) { + $this->set_error(self::ERROR_VALIDATE, 'nonamewarning'); + return false; + } + + // Verify that the required fields are set. + $missing = null; + $ldap_data = $this->_map_data($save_data); + foreach ($this->prop['required_fields'] as $fld) { + if (!isset($ldap_data[$fld]) || $ldap_data[$fld] === '') { + $missing[$fld] = 1; + } + } + + if ($missing) { + // try to complete record automatically + if ($autofix) { + $sn_field = $this->fieldmap['surname']; + $fn_field = $this->fieldmap['firstname']; + $mail_field = $this->fieldmap['email']; + + // try to extract surname and firstname from displayname + $reverse_map = array_flip($this->fieldmap); + $name_parts = preg_split('/[\s,.]+/', $save_data['name']); + + if ($sn_field && $missing[$sn_field]) { + $save_data['surname'] = array_pop($name_parts); + unset($missing[$sn_field]); + } + + if ($fn_field && $missing[$fn_field]) { + $save_data['firstname'] = array_shift($name_parts); + unset($missing[$fn_field]); + } + + // try to fix missing e-mail, very often on import + // from vCard we have email:other only defined + if ($mail_field && $missing[$mail_field]) { + $emails = $this->get_col_values('email', $save_data, true); + if (!empty($emails) && ($email = array_shift($emails))) { + $save_data['email'] = $email; + unset($missing[$mail_field]); + } + } + } + + // TODO: generate message saying which fields are missing + if (!empty($missing)) { + $this->set_error(self::ERROR_VALIDATE, 'formincomplete'); + return false; + } + } + + return true; + } + + + /** + * Create a new contact record + * + * @param array Hash array with save data + * + * @return encoded record ID on success, False on error + */ + function insert($save_cols) + { + // Map out the column names to their LDAP ones to build the new entry. + $newentry = $this->_map_data($save_cols); + $newentry['objectClass'] = $this->prop['LDAP_Object_Classes']; + + // add automatically generated attributes + $this->add_autovalues($newentry); + + // 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_VALIDATE, '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; + + // Remove attributes that need to be added separately (child objects) + $xfields = array(); + if (!empty($this->prop['sub_fields']) && is_array($this->prop['sub_fields'])) { + foreach ($this->prop['sub_fields'] as $xf => $xclass) { + if (!empty($newentry[$xf])) { + $xfields[$xf] = $newentry[$xf]; + unset($newentry[$xf]); + } + } + } + + if (!$this->ldap_add($dn, $newentry)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + + foreach ($xfields as $xidx => $xf) { + $xdn = $xidx.'='.$this->_quote_string($xf).','.$dn; + $xf = array( + $xidx => $xf, + 'objectClass' => (array) $this->prop['sub_fields'][$xidx], + ); + + $this->ldap_add($xdn, $xf); + } + + $dn = self::dn_encode($dn); + + // add new contact to the selected group + if ($this->group_id) + $this->add_to_group($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); + + $newdata = array(); + $replacedata = array(); + $deletedata = array(); + $subdata = array(); + $subdeldata = array(); + $subnewdata = array(); + + $ldap_data = $this->_map_data($save_cols); + $old_data = $record['_raw_attrib']; + + // special handling of photo col + if ($photo_fld = $this->fieldmap['photo']) { + // undefined means keep old photo + if (!array_key_exists('photo', $save_cols)) { + $ldap_data[$photo_fld] = $record['photo']; + } + } + + foreach ($this->fieldmap as $col => $fld) { + if ($fld) { + $val = $ldap_data[$fld]; + $old = $old_data[$fld]; + // remove empty array values + if (is_array($val)) + $val = array_filter($val); + // $this->_map_data() result and _raw_attrib use different format + // make sure comparing array with one element with a string works as expected + if (is_array($old) && count($old) == 1 && !is_array($val)) { + $old = array_pop($old); + } + if (is_array($val) && count($val) == 1 && !is_array($old)) { + $val = array_pop($val); + } + // Subentries must be handled separately + if (!empty($this->prop['sub_fields']) && isset($this->prop['sub_fields'][$fld])) { + if ($old != $val) { + if ($old !== null) { + $subdeldata[$fld] = $old; + } + if ($val) { + $subnewdata[$fld] = $val; + } + } + else if ($old !== null) { + $subdata[$fld] = $old; + } + continue; + } + + // The field does exist compare it to the ldap record. + if ($old != $val) { + // Changed, but find out how. + if ($old === null) { + // Field was not set prior, need to add it. + $newdata[$fld] = $val; + } + else if ($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. + // #1488420: Workaround "ldap_mod_del(): Modify: Inappropriate matching in..." + // jpegPhoto attribute require an array() here. It looks to me that it works for other attribs too + $deletedata[$fld] = array(); + //$deletedata[$fld] = $old_data[$fld]; + } + } + else { + // The data was modified, save it out. + $replacedata[$fld] = $val; + } + } // end if + } // end if + } // end foreach + + // console($old_data, $ldap_data, '----', $newdata, $replacedata, $deletedata, '----', $subdata, $subnewdata, $subdeldata); + + $dn = self::dn_decode($id); + + // Update the entry as required. + if (!empty($deletedata)) { + // Delete the fields. + if (!$this->ldap_mod_del($dn, $deletedata)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + } // end if + + if (!empty($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($replacedata)) { + if (!$this->ldap_mod_replace($dn, $replacedata)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + } + } // end if + + // RDN change, we need to remove all sub-entries + if (!empty($newrdn)) { + $subdeldata = array_merge($subdeldata, $subdata); + $subnewdata = array_merge($subnewdata, $subdata); + } + + // remove sub-entries + if (!empty($subdeldata)) { + foreach ($subdeldata as $fld => $val) { + $subdn = $fld.'='.$this->_quote_string($val).','.$dn; + if (!$this->ldap_delete($subdn)) { + return false; + } + } + } + + if (!empty($newdata)) { + // Add the fields. + if (!$this->ldap_mod_add($dn, $newdata)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + } // end if + + // Handle RDN change + if (!empty($newrdn)) { + if (!$this->ldap_rename($dn, $newrdn, null, true)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + + $dn = self::dn_encode($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); + } + } + + $dn = self::dn_decode($newdn); + } + + // add sub-entries + if (!empty($subnewdata)) { + foreach ($subnewdata as $fld => $val) { + $subdn = $fld.'='.$this->_quote_string($val).','.$dn; + $xf = array( + $fld => $val, + 'objectClass' => (array) $this->prop['sub_fields'][$fld], + ); + $this->ldap_add($subdn, $xf); + } + } + + return $newdn ? $newdn : true; + } + + + /** + * Mark one or more contact records as deleted + * + * @param array Record identifiers + * @param boolean Remove record(s) irreversible (unsupported) + * + * @return boolean True on success, False on error + */ + function delete($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); + + // Need to delete all sub-entries first + if ($this->sub_filter) { + if ($entries = $this->ldap_list($dn, $this->sub_filter)) { + foreach ($entries as $entry) { + if (!$this->ldap_delete($entry['dn'])) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + } + } + } + + // Delete the record. + if (!$this->ldap_delete($dn)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + + // remove contact from all groups where he was member + if ($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); + } + + + /** + * Remove all contact records + */ + function delete_all() + { + //searching for contact entries + $dn_list = $this->ldap_list($this->base_dn, $this->prop['filter'] ? $this->prop['filter'] : '(objectclass=*)'); + + if (!empty($dn_list)) { + foreach ($dn_list as $idx => $entry) { + $dn_list[$idx] = self::dn_encode($entry['dn']); + } + $this->delete($dn_list); + } + } + + /** + * Generate missing attributes as configured + * + * @param array LDAP record attributes + */ + protected function add_autovalues(&$attrs) + { + $attrvals = array(); + foreach ($attrs as $k => $v) { + $attrvals['{'.$k.'}'] = is_array($v) ? $v[0] : $v; + } + + foreach ((array)$this->prop['autovalues'] as $lf => $templ) { + if (empty($attrs[$lf])) { + // replace {attr} placeholders with concrete attribute values + $templ = preg_replace('/\{\w+\}/', '', strtr($templ, $attrvals)); + + if (strpos($templ, '(') !== false) + $attrs[$lf] = eval("return ($templ);"); + else + $attrs[$lf] = $templ; + } + } + } + + /** + * Execute the LDAP search based on the stored credentials + */ + private function _exec_search($count = false) + { + if ($this->ready) + { + $filter = $this->filter ? $this->filter : '(objectclass=*)'; + $function = $this->_scope2func($this->prop['scope'], $ns_function); + + $this->_debug("C: Search [$filter][dn: $this->base_dn]"); + + // when using VLV, we get the total count by... + if (!$count && $function != 'ldap_read' && $this->prop['vlv'] && !$this->group_id) { + // ...either reading numSubOrdinates attribute + if ($this->prop['numsub_filter'] && ($result_count = @$ns_function($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 if (!function_exists('ldap_parse_virtuallist_control')) // ...or by fetching all records dn and count them + $this->vlv_count = $this->_exec_search(true); + + $this->vlv_active = $this->_vlv_set_controls($this->prop, $this->list_page, $this->page_size); + } + + // 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)$this->prop['timelimit']) + ) { + // when running on a patched PHP we can use the extended functions to retrieve the total count from the LDAP search result + if ($this->vlv_active && function_exists('ldap_parse_virtuallist_control')) { + if (ldap_parse_result($this->conn, $this->ldap_result, + $errcode, $matcheddn, $errmsg, $referrals, $serverctrls) + ) { + ldap_parse_virtuallist_control($this->conn, $serverctrls, + $last_offset, $this->vlv_count, $vresult); + $this->_debug("S: VLV result: last_offset=$last_offset; content_count=$this->vlv_count"); + } + else { + $this->_debug("S: ".($errmsg ? $errmsg : ldap_error($this->conn))); + } + } + + $entries_count = ldap_count_entries($this->conn, $this->ldap_result); + $this->_debug("S: $entries_count record(s)"); + + return $count ? $entries_count : true; + } + else { + $this->_debug("S: ".ldap_error($this->conn)); + } + } + + return false; + } + + /** + * Choose the right PHP function according to scope property + */ + private function _scope2func($scope, &$ns_function = null) + { + switch ($scope) { + case 'sub': + $function = $ns_function = 'ldap_search'; + break; + case 'base': + $function = $ns_function = 'ldap_read'; + break; + default: + $function = 'ldap_list'; + $ns_function = 'ldap_read'; + break; + } + + return $function; + } + + /** + * Set server controls for Virtual List View (paginated listing) + */ + private function _vlv_set_controls($prop, $list_page, $page_size, $search = null) + { + $sort_ctrl = array('oid' => "1.2.840.113556.1.4.473", 'value' => $this->_sort_ber_encode((array)$prop['sort'])); + $vlv_ctrl = array('oid' => "2.16.840.1.113730.3.4.9", 'value' => $this->_vlv_ber_encode(($offset = ($list_page-1) * $page_size + 1), $page_size, $search), 'iscritical' => true); + + $sort = (array)$prop['sort']; + $this->_debug("C: set controls sort=" . join(' ', unpack('H'.(strlen($sort_ctrl['value'])*2), $sort_ctrl['value'])) . " ($sort[0]);" + . " vlv=" . join(' ', (unpack('H'.(strlen($vlv_ctrl['value'])*2), $vlv_ctrl['value']))) . " ($offset/$page_size)"); + + if (!ldap_set_option($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][$i])) + continue; + + list($col, $subtype) = explode(':', $rf); + $out['_raw_attrib'][$lf][$i] = $value; + + if ($col == 'email' && $this->mail_domain && !strpos($value, '@')) + $out[$rf][] = sprintf('%s@%s', $value, $this->mail_domain); + else if (in_array($col, array('street','zipcode','locality','country','region'))) + $out['address'.($subtype?':':'').$subtype][$i][$col] = $value; + else if ($col == 'address' && strpos($value, '$') !== false) // address data is represented as string separated with $ + list($out[$rf][$i]['street'], $out[$rf][$i]['locality'], $out[$rf][$i]['zipcode'], $out[$rf][$i]['country']) = explode('$', $value); + else if ($rec[$lf]['count'] > 1) + $out[$rf][] = $value; + else + $out[$rf] = $value; + } + + // Make sure name fields aren't arrays (#1488108) + if (is_array($out[$rf]) && in_array($rf, array('name', 'surname', 'firstname', 'middlename', 'nickname'))) { + $out[$rf] = $out['_raw_attrib'][$lf] = $out[$rf][0]; + } + } + + return $out; + } + + + /** + * Return LDAP attribute(s) for the given field + */ + private function _map_field($field) + { + return (array)$this->coltypes[$field]['attributes']; + } + + + /** + * Convert a record data set into LDAP field attributes + */ + private function _map_data($save_cols) + { + // flatten composite fields first + foreach ($this->coltypes as $col => $colprop) { + if (is_array($colprop['childs']) && ($values = $this->get_col_values($col, $save_cols, false))) { + foreach ($values as $subtype => $childs) { + $subtype = $subtype ? ':'.$subtype : ''; + foreach ($childs as $i => $child_values) { + foreach ((array)$child_values as $childcol => $value) { + $save_cols[$childcol.$subtype][$i] = $value; + } + } + } + } + + // if addresses are to be saved as serialized string, do so + if (is_array($colprop['serialized'])) { + foreach ($colprop['serialized'] as $subtype => $delim) { + $key = $col.':'.$subtype; + foreach ((array)$save_cols[$key] as $i => $val) + $save_cols[$key][$i] = join($delim, array($val['street'], $val['locality'], $val['zipcode'], $val['country'])); + } + } + } + + $ldap_data = array(); + foreach ($this->fieldmap as $rf => $fld) { + $val = $save_cols[$rf]; + + // check for value in base field (eg.g email instead of email:foo) + list($col, $subtype) = explode(':', $rf); + if (!$val && !empty($save_cols[$col])) { + $val = $save_cols[$col]; + unset($save_cols[$col]); // only use this value once + } + else if (!$val && !$subtype) { // extract values from subtype cols + $val = $this->get_col_values($col, $save_cols, true); + } + + if (is_array($val)) + $val = array_filter($val); // remove empty entries + if ($fld && $val) { + // The field does exist, add it to the entry. + $ldap_data[$fld] = $val; + } + } + + return $ldap_data; + } + + + /** + * Returns unified attribute name (resolving aliases) + */ + private static function _attr_name($namev) + { + // list of known attribute aliases + static $aliases = array( + 'gn' => 'givenname', + 'rfc822mailbox' => 'email', + 'userid' => 'uid', + 'emailaddress' => 'email', + 'pkcs9email' => 'email', + ); + + list($name, $limit) = explode(':', $namev, 2); + $suffix = $limit ? ':'.$limit : ''; + + return (isset($aliases[$name]) ? $aliases[$name] : $name) . $suffix; + } + + + /** + * Prints debug info to the log + */ + private function _debug($str) + { + if ($this->debug) { + rcube::write_log('ldap', $str); + } + } + + + /** + * Activate/deactivate debug mode + * + * @param boolean $dbg True if LDAP commands should be logged + * @access public + */ + function set_debug($dbg = true) + { + $this->debug = $dbg; + } + + + /** + * 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 ($group_id) + { + if (($group_cache = $this->cache->get('groups')) === null) + $group_cache = $this->_fetch_groups(); + + $this->group_id = $group_id; + $this->group_data = $group_cache[$group_id]; + } + else + { + $this->group_id = 0; + $this->group_data = null; + } + } + + /** + * List all active contact groups of this source + * + * @param string Optional search string to match group name + * @return array Indexed list of contact groups, each a hash array + */ + function list_groups($search = null) + { + if (!$this->groups) + return array(); + + // use cached list for searching + $this->cache->expunge(); + if (!$search || ($group_cache = $this->cache->get('groups')) === null) + $group_cache = $this->_fetch_groups(); + + $groups = array(); + if ($search) { + $search = mb_strtolower($search); + foreach ($group_cache as $group) { + if (strpos(mb_strtolower($group['name']), $search) !== false) + $groups[] = $group; + } + } + else + $groups = $group_cache; + + return array_values($groups); + } + + /** + * Fetch groups from server + */ + private function _fetch_groups($vlv_page = 0) + { + $base_dn = $this->groups_base_dn; + $filter = $this->prop['groups']['filter']; + $name_attr = $this->prop['groups']['name_attr']; + $email_attr = $this->prop['groups']['email_attr'] ? $this->prop['groups']['email_attr'] : 'mail'; + $sort_attrs = $this->prop['groups']['sort'] ? (array)$this->prop['groups']['sort'] : array($name_attr); + $sort_attr = $sort_attrs[0]; + + $this->_debug("C: Search [$filter][dn: $base_dn]"); + + // use vlv to list groups + if ($this->prop['groups']['vlv']) { + $page_size = 200; + if (!$this->prop['groups']['sort']) + $this->prop['groups']['sort'] = $sort_attrs; + $vlv_active = $this->_vlv_set_controls($this->prop['groups'], $vlv_page+1, $page_size); + } + + $function = $this->_scope2func($this->prop['groups']['scope'], $ns_function); + $res = @$function($this->conn, $base_dn, $filter, array_unique(array('dn', 'objectClass', $name_attr, $email_attr, $sort_attr))); + if ($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(); + $group_count = $ldap_data["count"]; + for ($i=0; $i < $group_count; $i++) + { + $group_name = is_array($ldap_data[$i][$name_attr]) ? $ldap_data[$i][$name_attr][0] : $ldap_data[$i][$name_attr]; + $group_id = self::dn_encode($group_name); + $groups[$group_id]['ID'] = $group_id; + $groups[$group_id]['dn'] = $ldap_data[$i]['dn']; + $groups[$group_id]['name'] = $group_name; + $groups[$group_id]['member_attr'] = $this->get_group_member_attr($ldap_data[$i]['objectclass']); + + // list email attributes of a group + for ($j=0; $ldap_data[$i][$email_attr] && $j < $ldap_data[$i][$email_attr]['count']; $j++) { + if (strpos($ldap_data[$i][$email_attr][$j], '@') > 0) + $groups[$group_id]['email'][] = $ldap_data[$i][$email_attr][$j]; + } + + $group_sortnames[] = mb_strtolower($ldap_data[$i][$sort_attr][0]); + } + + // recursive call can exit here + if ($vlv_page > 0) + return $groups; + + // call recursively until we have fetched all groups + while ($vlv_active && $group_count == $page_size) + { + $next_page = $this->_fetch_groups(++$vlv_page); + $groups = array_merge($groups, $next_page); + $group_count = count($next_page); + } + + // when using VLV the list of groups is already sorted + if (!$this->prop['groups']['vlv']) + array_multisort($group_sortnames, SORT_ASC, SORT_STRING, $groups); + + // cache this + $this->cache->set('groups', $groups); + + return $groups; + } + + /** + * Get group properties such as name and email address(es) + * + * @param string Group identifier + * @return array Group properties as hash array + */ + function get_group($group_id) + { + if (($group_cache = $this->cache->get('groups')) === null) + $group_cache = $this->_fetch_groups(); + + $group_data = $group_cache[$group_id]; + unset($group_data['dn'], $group_data['member_attr']); + + return $group_data; + } + + /** + * Create a contact group with the given name + * + * @param string The group name + * @return mixed False on error, array with record props in success + */ + function create_group($group_name) + { + $base_dn = $this->groups_base_dn; + $new_dn = "cn=$group_name,$base_dn"; + $new_gid = self::dn_encode($group_name); + $member_attr = $this->get_group_member_attr(); + $name_attr = $this->prop['groups']['name_attr'] ? $this->prop['groups']['name_attr'] : 'cn'; + + $new_entry = array( + 'objectClass' => $this->prop['groups']['object_classes'], + $name_attr => $group_name, + $member_attr => '', + ); + + if (!$this->ldap_add($new_dn, $new_entry)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + + $this->cache->remove('groups'); + + 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 (($group_cache = $this->cache->get('groups')) === null) + $group_cache = $this->_fetch_groups(); + + $base_dn = $this->groups_base_dn; + $group_name = $group_cache[$group_id]['name']; + $del_dn = "cn=$group_name,$base_dn"; + + if (!$this->ldap_delete($del_dn)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + + $this->cache->remove('groups'); + + return true; + } + + /** + * Rename a specific contact group + * + * @param string Group identifier + * @param string New name to set for this group + * @param string New group identifier (if changed, otherwise don't set) + * @return boolean New name on success, false if no data was changed + */ + function rename_group($group_id, $new_name, &$new_gid) + { + if (($group_cache = $this->cache->get('groups')) === null) + $group_cache = $this->_fetch_groups(); + + $base_dn = $this->groups_base_dn; + $group_name = $group_cache[$group_id]['name']; + $old_dn = "cn=$group_name,$base_dn"; + $new_rdn = "cn=$new_name"; + $new_gid = self::dn_encode($new_name); + + if (!$this->ldap_rename($old_dn, $new_rdn, null, true)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return false; + } + + $this->cache->remove('groups'); + + 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, $contact_ids) + { + if (($group_cache = $this->cache->get('groups')) === null) + $group_cache = $this->_fetch_groups(); + + if (!is_array($contact_ids)) + $contact_ids = explode(',', $contact_ids); + + $base_dn = $this->groups_base_dn; + $group_name = $group_cache[$group_id]['name']; + $member_attr = $group_cache[$group_id]['member_attr']; + $group_dn = "cn=$group_name,$base_dn"; + + $new_attrs = array(); + foreach ($contact_ids as $id) + $new_attrs[$member_attr][] = self::dn_decode($id); + + if (!$this->ldap_mod_add($group_dn, $new_attrs)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return 0; + } + + $this->cache->remove('groups'); + + return count($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, $contact_ids) + { + if (($group_cache = $this->cache->get('groups')) === null) + $group_cache = $this->_fetch_groups(); + + $base_dn = $this->groups_base_dn; + $group_name = $group_cache[$group_id]['name']; + $member_attr = $group_cache[$group_id]['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($id); + + if (!$this->ldap_mod_del($group_dn, $del_attrs)) { + $this->set_error(self::ERROR_SAVING, 'errorsaving'); + return 0; + } + + $this->cache->remove('groups'); + + return count($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); + $name_attr = $this->prop['groups']['name_attr'] ? $this->prop['groups']['name_attr'] : 'cn'; + $member_attr = $this->get_group_member_attr(); + $add_filter = ''; + if ($member_attr != 'member' && $member_attr != 'uniqueMember') + $add_filter = "($member_attr=$contact_dn)"; + $filter = strtr("(|(member=$contact_dn)(uniqueMember=$contact_dn)$add_filter)", array('\\' => '\\\\')); + + $this->_debug("C: Search [$filter][dn: $base_dn]"); + + $res = @ldap_search($this->conn, $base_dn, $filter, array($name_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)"); + + $groups = array(); + for ($i=0; $i<$ldap_data["count"]; $i++) + { + $group_name = $ldap_data[$i][$name_attr][0]; + $group_id = self::dn_encode($group_name); + $groups[$group_id] = $group_id; + } + return $groups; + } + + /** + * Detects group member attribute name + */ + private function get_group_member_attr($object_classes = array()) + { + if (empty($object_classes)) { + $object_classes = $this->prop['groups']['object_classes']; + } + if (!empty($object_classes)) { + foreach ((array)$object_classes as $oc) { + switch (strtolower($oc)) { + case 'group': + case 'groupofnames': + case 'kolabgroupofnames': + $member_attr = 'member'; + break; + + case 'groupofuniquenames': + case 'kolabgroupofuniquenames': + $member_attr = 'uniqueMember'; + break; + } + } + } + + if (!empty($member_attr)) { + return $member_attr; + } + + if (!empty($this->prop['groups']['member_attr'])) { + return $this->prop['groups']['member_attr']; + } + + return 'member'; + } + + + /** + * Generate BER encoded string for Virtual List View option + * + * @param integer List offset (first record) + * @param integer Records per page + * @return string BER encoded option value + */ + private function _vlv_ber_encode($offset, $rpp, $search = '') + { + # this string is ber-encoded, php will prefix this value with: + # 04 (octet string) and 10 (length of 16 bytes) + # the code behind this string is broken down as follows: + # 30 = ber sequence with a length of 0e (14) bytes following + # 02 = type integer (in two's complement form) with 2 bytes following (beforeCount): 01 00 (ie 0) + # 02 = type integer (in two's complement form) with 2 bytes following (afterCount): 01 18 (ie 25-1=24) + # a0 = type context-specific/constructed with a length of 06 (6) bytes following + # 02 = type integer with 2 bytes following (offset): 01 01 (ie 1) + # 02 = type integer with 2 bytes following (contentCount): 01 00 + + # whith a search string present: + # 81 = type context-specific/constructed with a length of 04 (4) bytes following (the length will change here) + # 81 indicates a user string is present where as a a0 indicates just a offset search + # 81 = type context-specific/constructed with a length of 06 (6) bytes following + + # the following info was taken from the ISO/IEC 8825-1:2003 x.690 standard re: the + # encoding of integer values (note: these values are in + # two-complement form so since offset will never be negative bit 8 of the + # leftmost octet should never by set to 1): + # 8.3.2: If the contents octets of an integer value encoding consist + # of more than one octet, then the bits of the first octet (rightmost) and bit 8 + # of the second (to the left of first octet) octet: + # a) shall not all be ones; and + # b) shall not all be zero + + if ($search) + { + $search = preg_replace('/[^-[:alpha:] ,.()0-9]+/', '', $search); + $ber_val = self::_string2hex($search); + $str = self::_ber_addseq($ber_val, '81'); + } + else + { + # 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 + $str = "020100" . self::_ber_addseq(self::_ber_encode_int($rpp-1), '02') . $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); + } + + /** + * Wrapper for ldap_add() + */ + protected function ldap_add($dn, $entry) + { + $this->_debug("C: Add [dn: $dn]: ".print_r($entry, true)); + + $res = ldap_add($this->conn, $dn, $entry); + if ($res === false) { + $this->_debug("S: ".ldap_error($this->conn)); + return false; + } + + $this->_debug("S: OK"); + return true; + } + + /** + * Wrapper for ldap_delete() + */ + protected function ldap_delete($dn) + { + $this->_debug("C: Delete [dn: $dn]"); + + $res = ldap_delete($this->conn, $dn); + if ($res === false) { + $this->_debug("S: ".ldap_error($this->conn)); + return false; + } + + $this->_debug("S: OK"); + return true; + } + + /** + * Wrapper for ldap_mod_replace() + */ + protected function ldap_mod_replace($dn, $entry) + { + $this->_debug("C: Replace [dn: $dn]: ".print_r($entry, true)); + + if (!ldap_mod_replace($this->conn, $dn, $entry)) { + $this->_debug("S: ".ldap_error($this->conn)); + return false; + } + + $this->_debug("S: OK"); + return true; + } + + /** + * Wrapper for ldap_mod_add() + */ + protected function ldap_mod_add($dn, $entry) + { + $this->_debug("C: Add [dn: $dn]: ".print_r($entry, true)); + + if (!ldap_mod_add($this->conn, $dn, $entry)) { + $this->_debug("S: ".ldap_error($this->conn)); + return false; + } + + $this->_debug("S: OK"); + return true; + } + + /** + * Wrapper for ldap_mod_del() + */ + protected function ldap_mod_del($dn, $entry) + { + $this->_debug("C: Delete [dn: $dn]: ".print_r($entry, true)); + + if (!ldap_mod_del($this->conn, $dn, $entry)) { + $this->_debug("S: ".ldap_error($this->conn)); + return false; + } + + $this->_debug("S: OK"); + return true; + } + + /** + * Wrapper for ldap_rename() + */ + protected function ldap_rename($dn, $newrdn, $newparent = null, $deleteoldrdn = true) + { + $this->_debug("C: Rename [dn: $dn] [dn: $newrdn]"); + + if (!ldap_rename($this->conn, $dn, $newrdn, $newparent, $deleteoldrdn)) { + $this->_debug("S: ".ldap_error($this->conn)); + return false; + } + + $this->_debug("S: OK"); + return true; + } + + /** + * Wrapper for ldap_list() + */ + protected function ldap_list($dn, $filter, $attrs = array('')) + { + $list = array(); + $this->_debug("C: List [dn: $dn] [{$filter}]"); + + if ($result = ldap_list($this->conn, $dn, $filter, $attrs)) { + $list = ldap_get_entries($this->conn, $result); + + if ($list === false) { + $this->_debug("S: ".ldap_error($this->conn)); + return array(); + } + + $count = $list['count']; + unset($list['count']); + + $this->_debug("S: $count record(s)"); + } + else { + $this->_debug("S: ".ldap_error($this->conn)); + } + + return $list; + } + +} |