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diff --git a/lib/Kolab/CardDAV/LDAPDirectory.php b/lib/Kolab/CardDAV/LDAPDirectory.php
index 7135b42..489d80b 100644
--- a/lib/Kolab/CardDAV/LDAPDirectory.php
+++ b/lib/Kolab/CardDAV/LDAPDirectory.php
@@ -1,577 +1,579 @@
<?php
/**
* CardDAV Directory class providing read-only access
* to an LDAP-based global address book.
*
* This implements the CardDAV Directory Gateway Extension suggested by Apple Inc.
* http://tools.ietf.org/html/draft-daboo-carddav-directory-gateway-02
*
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2014, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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/>.
*/
namespace Kolab\CardDAV;
use \rcube;
use \rcube_ldap;
use \rcube_ldap_generic;
use Sabre\DAV;
use Sabre\DAVACL;
use Sabre\CardDAV\Property;
use Kolab\Utils\VObjectUtils;
/**
* CardDAV Directory Gateway implementation
*/
class LDAPDirectory extends DAV\Collection implements \Sabre\CardDAV\IDirectory, DAV\IProperties, DAVACL\IACL
{
const DIRECTORY_NAME = 'ldap-directory';
protected $config;
protected $ldap;
protected $carddavBackend;
protected $principalUri;
protected $addressBookInfo = array();
protected $cache;
protected $query;
protected $filter;
/**
* Default constructor
*/
function __construct($config, $principalUri, $carddavBackend = null)
{
$this->config = $config;
$this->principalUri = $principalUri;
$this->addressBookInfo = array(
'id' => self::DIRECTORY_NAME,
'uri' => self::DIRECTORY_NAME,
'{DAV:}displayname' => $config['name'] ?: "LDAP Directory",
'{urn:ietf:params:xml:ns:carddav}supported-address-data' => new Property\SupportedAddressData(),
'principaluri' => $principalUri,
);
// used for vcard serialization
$this->carddavBackend = $carddavBackend ?: new ContactsBackend();
$this->carddavBackend->ldap_directory = $this;
// initialize cache
$rcube = rcube::get_instance();
if ($rcube->config->get('kolabdav_ldap_cache')) {
$this->cache = $rcube->get_cache_shared('kolabdav_ldap');
// expunge cache every now and then
if (rand(0,10) === 0) {
$this->cache->expunge();
}
}
}
private function connect()
{
if (!isset($this->ldap)) {
$this->ldap = new rcube_ldap($this->config, $this->config['debug']);
$this->ldap->set_pagesize($this->config['sizelimit'] ?: 10000);
}
return $this->ldap->ready ? $this->ldap : null;
}
/**
* Set parsed addressbook-query object for filtering
*/
function setAddressbookQuery($query)
{
$this->query = $query;
$this->filter = $this->addressbook_query2ldap_filter($query);
}
/**
* Returns the name of the node.
*
* This is used to generate the url.
*
* @return string
*/
function getName()
{
return self::DIRECTORY_NAME;
}
/**
* Returns a specific child node, referenced by its name
*
* This method must throw Sabre\DAV\Exception\NotFound if the node does not
* exist.
*
* @param string $name
* @return DAV\INode
*/
function getChild($cardUri)
{
console(__METHOD__, $cardUri);
$uid = VObjectUtils::uri2uid($cardUri, '.vcf');
$record = null;
// get from cache
$cache_key = $uid;
if ($this->cache && ($cached = $this->cache->get($cache_key))) {
return new LDAPCard($this->carddavBackend, $this->addressBookInfo, $cached);
}
if ($contact = $this->getContactObject($uid)) {
$obj = array(
'id' => $contact['uid'],
'uri' => VObjectUtils::uid2uri($contact['uid'], '.vcf'),
'lastmodified' => $contact['_timestamp'],
'carddata' => $this->carddavBackend->to_vcard($contact),
'etag' => self::_get_etag($contact),
);
// cache this object
if ($this->cache) {
$this->cache->set($cache_key, $obj);
}
return new LDAPCard($this->carddavBackend, $this->addressBookInfo, $obj);
}
throw new DAV\Exception\NotFound('Card not found');
}
/**
* Read contact object from LDAP
*/
function getContactObject($uid)
{
$contact = null;
if ($ldap = $this->connect()) {
$ldap->reset();
// used cached uid mapping
$cached_index = $this->cache ? $this->cache->get('index') : array();
if ($cached_index[$uid]) {
$contact = $ldap->get_record($cached_index[$uid][0], true);
}
else { // query for uid
$result = $ldap->search('uid', $uid, 1, true, true);
if ($result->count) {
$contact = $result[0];
}
}
if ($contact) {
$this->_normalize_contact($contact);
}
}
return $contact;
}
/**
* Returns an array with all the child nodes
*
* @return DAV\INode[]
*/
function getChildren()
{
console(__METHOD__, $this->query, $this->filter);
$children = array();
// return cached index
if (!$this->query && !$this->config['searchonly'] && $this->cache && ($cached_index = $this->cache->get('index'))) {
foreach ($cached_index as $uid => $c) {
$obj = array(
'id' => $uid,
'uri' => VObjectUtils::uid2uri($uid, '.vcf'),
'etag' => $c[1],
'lastmodified' => $c[2],
);
$children[] = new LDAPCard($this->carddavBackend, $this->addressBookInfo, $obj);
}
return $children;
}
// query LDAP if we have a search query or listing is allowed
if (($this->query || !$this->config['searchonly']) && ($ldap = $this->connect())) {
// set pagesize from query limit attribute
if ($this->query && $this->query->limit) {
$this->ldap->set_pagesize(intval($this->query->limit));
}
// set the prepared LDAP filter derived from the addressbook-query
if ($this->query && !empty($this->filter)) {
$ldap->set_search_set($this->filter);
}
else {
$ldap->set_search_set(null);
}
$results = $ldap->list_records(null);
$directory_index = array();
// convert results into vcard blocks
foreach ($results as $contact) {
$this->_normalize_contact($contact);
$obj = array(
'id' => $contact['uid'],
'uri' => VObjectUtils::uid2uri($contact['uid'], '.vcf'),
'lastmodified' => $contact['_timestamp'],
'carddata' => $this->carddavBackend->to_vcard($contact),
'etag' => self::_get_etag($contact),
);
// cache record
$cache_key = $contact['uid'];
if ($this->cache) {
$this->cache->set($cache_key, $obj);
}
$directory_index[$contact['uid']] = array($contact['ID'], $obj['etag'], $contact['_timestamp']);
// add CardDAV node
$children[] = new LDAPCard($this->carddavBackend, $this->addressBookInfo, $obj);
}
// cache the full listing
if (empty($this->filter) && $this->cache) {
$this->cache->set('index', $directory_index);
}
}
return $children;
}
/**
* Returns a list of properties for this node.
*
* The properties list is a list of propertynames the client requested,
* encoded in clark-notation {xmlnamespace}tagname
*
* If the array is empty, it means 'all properties' were requested.
*
* @param array $properties
* @return array
*/
public function getProperties($properties)
{
console(__METHOD__, $properties);
$response = array();
foreach ($properties as $propertyName) {
if (isset($this->addressBookInfo[$propertyName])) {
$response[$propertyName] = $this->addressBookInfo[$propertyName];
}
else if ($propertyName == '{DAV:}getlastmodified') {
$response[$propertyName] = new DAV\Property\GetLastModified($this->getLastModified());
}
}
return $response;
}
/**
* Returns the last modification time, as a unix timestamp
*
* @return int
*/
function getLastModified()
{
console(__METHOD__);
return time();
}
/**
* Deletes the entire addressbook.
*
* @return void
*/
public function delete()
{
throw new DAV\Exception\MethodNotAllowed('Deleting directories is not allowed');
}
/**
* Renames the addressbook
*
* @param string $newName
* @return void
*/
public function setName($newName)
{
throw new DAV\Exception\MethodNotAllowed('Renaming directories not allowed');
}
/**
* Returns the owner principal
*
* This must be a url to a principal, or null if there's no owner
*
* @return string|null
*/
public function getOwner()
{
return $this->principalUri;
}
/**
* Returns a group principal
*
* This must be a url to a principal, or null if there's no owner
*
* @return string|null
*/
function getGroup()
{
return null;
}
/**
* Returns a list of ACE's for this node.
*
* Each ACE has the following properties:
* * 'privilege', a string such as {DAV:}read or {DAV:}write
* * 'principal', a url to the principal who owns the node
* * 'protected' (optional), indicating that this ACE is not allowed to be updated.
*
* @return array
*/
public function getACL()
{
$acl = array(
array(
'privilege' => '{DAV:}read',
'principal' => $this->principalUri,
'protected' => true,
),
);
return $acl;
}
/**
* Updates the ACL
*
* @param array $acl
* @return void
*/
function setACL(array $acl)
{
throw new DAV\Exception\MethodNotAllowed('Changing ACL for directories is not allowed');
}
/**
* Returns the list of supported privileges for this node.
*
* If null is returned from this method, the default privilege set is used,
* which is fine for most common usecases.
*
* @return array|null
*/
function getSupportedPrivilegeSet()
{
return null;
}
/**
* Updates properties on this node.
*
* @param PropPatch $propPatch
* @return void
*/
public function propPatch(DAV\PropPatch $propPatch)
{
console(__METHOD__, $propPatch);
// NOP
}
/**
* Post-process the given contact record from rcube_ldap
*/
private function _normalize_contact(&$contact)
{
if (is_numeric($contact['changed'])) {
$contact['_timestamp'] = intval($contact['changed']);
$contact['changed'] = new \DateTime('@' . $contact['changed']);
}
else if (!empty($contact['changed'])) {
try {
+ // 2018 05 14 06 22 31 .0Z 2018-05-14T06:22:31
+ $contact['changed'] = preg_replace('/^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})\.0Z$/', '$1-$2-$3T$4:$5:$6', $contact['changed']);
$contact['changed'] = new \DateTime($contact['changed']);
$contact['_timestamp'] = intval($contact['changed']->format('U'));
}
catch (Exception $e) {
$contact['changed'] = null;
}
}
// map col:subtype fields to a list that the vcard serialization function understands
foreach (array('email' => 'address', 'phone' => 'number', 'website' => 'url') as $col => $prop) {
foreach (rcube_ldap::get_col_values($col, $contact) as $type => $values) {
foreach ((array)$values as $value) {
$contact[$col][] = array($prop => $value, 'type' => $type);
}
}
unset($contact[$col.':'.$type]);
}
$addresses = array();
foreach (rcube_ldap::get_col_values('address', $contact) as $type => $values) {
foreach ((array)$values as $adr) {
// skip empty address
$adr = array_filter($adr);
if (empty($adr))
continue;
$addresses[] = array(
'type' => $type,
'street' => $adr['street'],
'locality' => $adr['locality'],
'code' => $adr['zipcode'],
'region' => $adr['region'],
'country' => $adr['country'],
);
}
unset($contact['address:'.$type]);
}
$contact['address'] = $addresses;
}
/**
* Translate the given AddressBookQueryParser object into an LDAP filter
*/
private function addressbook_query2ldap_filter($query)
{
$criterias = array();
foreach ($query->filters as $filter) {
$ldap_attrs = $this->map_property2ldap($filter['name']);
$ldap_filter = ''; $count = 0;
// unknown attribute, skip
if (empty($ldap_attrs)) {
continue;
}
foreach ((array)$filter['text-matches'] as $matcher) {
// case-insensitive matching
if (in_array($matcher['collation'], array('i;unicode-casemap', 'i;ascii-casemap'))) {
$matcher['value'] = mb_strtolower($matcher['value']);
}
$value = rcube_ldap_generic::quote_string($matcher['value']);
$ldap_match = '';
// this assumes fuzzy search capabilities of the LDAP backend
switch ($matcher['match-type']) {
case 'contains':
$wp = $ws = '*';
break;
case 'starts-with':
$ws = '*';
break;
case 'ends-with':
$wp = '*';
break;
default:
$wp = $ws = '';
}
// OR query for all attributes involved
if (count($ldap_attrs) > 1) {
$ldap_match .= '(|';
}
foreach ($ldap_attrs as $attr) {
$ldap_match .= "($attr=$wp$value$ws)";
}
if (count($ldap_attrs) > 1) {
$ldap_match .= ')';
}
// negate the filter
if ($matcher['negate-condition']) {
$ldap_match = '(!' . $ldap_match . ')';
}
$ldap_filter .= $ldap_match;
$count++;
}
if ($count > 1) {
$criterias[] = '(' . ($filter['test'] == 'allof' ? '&' : '|') . $ldap_filter . ')';
}
else if (!empty($ldap_filter)) {
$criterias[] = $ldap_filter;
}
}
return empty($criterias) ? '' : sprintf('(%s%s)', $query->test == 'allof' ? '&' : '|', join('', $criterias));
}
/**
* Map a vcard property to an LDAP attribute
*/
private function map_property2ldap($propname)
{
$attribs = array();
// LDAP backend not available, abort
if (!($ldap = $this->connect())) {
return $attribs;
}
$vcard_fieldmap = array(
'FN' => array('name'),
'N' => array('surname','firstname','middlename'),
'ADR' => array('street','locality','region','code','country'),
'TITLE' => array('jobtitle'),
'ORG' => array('organization','department'),
'TEL' => array('phone'),
'URL' => array('website'),
'ROLE' => array('profession'),
'BDAY' => array('birthday'),
'IMPP' => array('im'),
);
$fields = $vcard_fieldmap[$propname] ?: array(strtolower($propname));
foreach ($fields as $field) {
if ($ldap->coltypes[$field]) {
$attribs = array_merge($attribs, (array)$ldap->coltypes[$field]['attributes']);
}
}
return $attribs;
}
/**
* Generate an Etag string from the given contact data
*
* @param array Hash array with contact properties from libkolab
* @return string Etag string
*/
private static function _get_etag($contact)
{
return sprintf('"%s-%d"', substr(md5($contact['uid']), 0, 16), $contact['_timestamp']);
}
}

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