| Path : /opt/z-push-softeco/backend/searchldap/ |
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| Current File : //opt/z-push-softeco/backend/searchldap/searchldap.php |
<?php
/***********************************************
* File : searchLDAP.php
* Project : Z-Push
* Descr : A ISearchProvider implementation to
* query a ldap server for GAL
* information.
*
* Created : 03.08.2010
*
* Copyright 2007 - 2016 Zarafa Deutschland GmbH
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Consult LICENSE file for details
************************************************/
require_once("backend/searchldap/config.php");
class BackendSearchLDAP implements ISearchProvider {
private $connection;
/**
* Initializes the backend to perform the search
* Connects to the LDAP server using the values from the configuration
*
*
* @access public
* @return
* @throws StatusException
*/
public function __construct() {
if (!function_exists("ldap_connect"))
throw new StatusException("BackendSearchLDAP(): php-ldap is not installed. Search aborted.", SYNC_SEARCHSTATUS_STORE_SERVERERROR, null, LOGLEVEL_FATAL);
// connect to LDAP
$this->connection = @ldap_connect(LDAP_HOST, LDAP_PORT);
@ldap_set_option($this->connection, LDAP_OPT_PROTOCOL_VERSION, 3);
// Authenticate
if (constant('ANONYMOUS_BIND') === true) {
if(! @ldap_bind($this->connection)) {
$this->connection = false;
throw new StatusException("BackendSearchLDAP(): Could not bind anonymously to server! Search aborted.", SYNC_SEARCHSTATUS_STORE_CONNECTIONFAILED, null, LOGLEVEL_ERROR);
}
}
else if (constant('LDAP_BIND_USER') != "") {
if(! @ldap_bind($this->connection, LDAP_BIND_USER, LDAP_BIND_PASSWORD)) {
$this->connection = false;
throw new StatusException(sprintf("BackendSearchLDAP(): Could not bind to server with user '%s' and specified password! Search aborted.", LDAP_BIND_USER), SYNC_SEARCHSTATUS_STORE_ACCESSDENIED, null, LOGLEVEL_ERROR);
}
}
else {
// it would be possible to use the users login and password to authenticate on the LDAP server
// the main $backend has to keep these values so they could be used here
$this->connection = false;
throw new StatusException("BackendSearchLDAP(): neither anonymous nor default bind enabled. Other options not implemented.", SYNC_SEARCHSTATUS_STORE_CONNECTIONFAILED, null, LOGLEVEL_ERROR);
}
}
/**
* Indicates if a search type is supported by this SearchProvider
* Currently only the type ISearchProvider::SEARCH_GAL (Global Address List) is implemented
*
* @param string $searchtype
*
* @access public
* @return boolean
*/
public function SupportsType($searchtype) {
return ($searchtype == ISearchProvider::SEARCH_GAL);
}
/**
* Queries the LDAP backend.
*
* @param string $searchquery string to be searched for
* @param string $searchrange specified searchrange
* @param SyncResolveRecipientsPicture $searchpicture limitations for picture
*
* @access public
* @return array search results
* @throws StatusException
*/
public function GetGALSearchResults($searchquery, $searchrange, $searchpicture) {
global $ldap_field_map;
if (isset($this->connection) && $this->connection !== false) {
$searchfilter = str_replace("SEARCHVALUE", $searchquery, LDAP_SEARCH_FILTER);
$result = @ldap_search($this->connection, LDAP_SEARCH_BASE, $searchfilter);
if (!$result) {
ZLog::Write(LOGLEVEL_ERROR, "BackendSearchLDAP: Error in search query. Search aborted");
return false;
}
// get entry data as array
$searchresult = ldap_get_entries($this->connection, $result);
// range for the search results, default symbian range end is 50, wm 99,
// so we'll use that of nokia
$rangestart = 0;
$rangeend = 50;
if ($searchrange != '0') {
$pos = strpos($searchrange, '-');
$rangestart = substr($searchrange, 0, $pos);
$rangeend = substr($searchrange, ($pos + 1));
}
$items = array();
// TODO the limiting of the searchresults could be refactored into Utils as it's probably used more than once
$querycnt = $searchresult['count'];
//do not return more results as requested in range
$querylimit = (($rangeend + 1) < $querycnt) ? ($rangeend + 1) : $querycnt;
$items['range'] = $rangestart.'-'.($querylimit-1);
$items['searchtotal'] = $querycnt;
$rc = 0;
for ($i = $rangestart; $i < $querylimit; $i++) {
foreach ($ldap_field_map as $key=>$value ) {
if (isset($searchresult[$i][$value])) {
if (is_array($searchresult[$i][$value]))
$items[$rc][$key] = $searchresult[$i][$value][0];
else
$items[$rc][$key] = $searchresult[$i][$value];
}
}
$rc++;
}
return $items;
}
else
return false;
}
/**
* Searches for the emails on the server
*
* @param ContentParameter $cpo
*
* @return array
*/
public function GetMailboxSearchResults($cpo) {
return array();
}
/**
* Terminates a search for a given PID
*
* @param int $pid
*
* @return boolean
*/
public function TerminateSearch($pid) {
return true;
}
/**
* Disconnects from LDAP
*
* @access public
* @return boolean
*/
public function Disconnect() {
if ($this->connection)
@ldap_close($this->connection);
return true;
}
}