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egroupware_official/addressbook/inc/class.addressbook_groupdav.inc.php

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<?php
/**
* EGroupware: CalDAV/CardDAV/GroupDAV access: Addressbook handler
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package addressbook
* @subpackage carddav
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @copyright (c) 2007-16 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @version $Id$
*/
use EGroupware\Api;
use EGroupware\Api\Acl;
/**
* CalDAV/CardDAV/GroupDAV access: Addressbook handler
*
* Propfind now uses a Api\CalDAV\PropfindIterator with a callback to query huge addressbooks in chunk,
* without getting into problems with memory_limit.
*
* Permanent error_log() calls should use $this->caldav->log($str) instead, to be send to PHP error_log()
* and our request-log (prefixed with "### " after request and response, like exceptions).
*/
class addressbook_groupdav extends Api\CalDAV\Handler
{
/**
* bo class of the application
*
* @var Api\Contacts
*/
var $bo;
var $filter_prop2cal = array(
'UID' => 'uid',
//'NICKNAME',
'EMAIL' => 'email',
'FN' => 'n_fn',
'ORG' => 'org_name',
);
/**
* Charset for exporting data, as some clients ignore the headers specifying the charset
*
* @var string
*/
var $charset = 'utf-8';
/**
* 'addressbook_home_set' preference already exploded as array
*
* A = all available addressbooks
* G = primary group
* D = distribution lists as groups
* O = sync all in one (/<username>/addressbook/)
* or nummerical account_id, but not user itself
*
* @var array
*/
var $home_set_pref;
/**
* Constructor
*
* @param string $app 'calendar', 'addressbook' or 'infolog'
* @param Api\CalDAV $caldav calling class
*/
function __construct($app, Api\CalDAV $caldav)
{
parent::__construct($app, $caldav);
$this->bo = new Api\Contacts();
// since 1.9.007 we allow clients to specify the URL when creating a new contact, as specified by CardDAV
// LDAP does NOT have a carddav_name attribute --> stick with id mapped to LDAP attribute uid
if (version_compare($GLOBALS['egw_info']['apps']['api']['version'], '1.9.007', '<') ||
$this->bo->contact_repository != 'sql' ||
$this->bo->account_repository != 'sql' && strpos($_SERVER['REQUEST_URI'].'/','/addressbook-accounts/') !== false)
{
self::$path_extension = '.vcf';
}
else
{
self::$path_attr = 'carddav_name';
self::$path_extension = '';
}
if ($this->debug) error_log(__METHOD__."() contact_repository={$this->bo->contact_repository}, account_repository={$this->bo->account_repository}, REQUEST_URI=$_SERVER[REQUEST_URI] --> path_attr=".self::$path_attr.", path_extension=".self::$path_extension);
$this->home_set_pref = $GLOBALS['egw_info']['user']['preferences']['groupdav']['addressbook-home-set'];
$this->home_set_pref = $this->home_set_pref ? explode(',',$this->home_set_pref) : array();
// silently switch "Sync all into one" preference on for OS X addressbook, as it only supports one AB
// this restores behavior before Lion (10.7), where AB synced all ABs contained in addressbook-home-set
if (substr(self::get_agent(),0,9) == 'cfnetwork' && !in_array('O',$this->home_set_pref))
{
$this->home_set_pref[] = 'O';
}
}
/**
* Handle propfind in the addressbook folder
*
* @param string $path
* @param array &$options
* @param array &$files
* @param int $user account_id
* @param string $id =''
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function propfind($path,&$options,&$files,$user,$id='')
{
$filter = array();
// If "Sync selected addressbooks into one" is set
if ($user && $user == $GLOBALS['egw_info']['user']['account_id'] && in_array('O',$this->home_set_pref))
{
$filter['owner'] = array_keys($this->get_shared(true)); // true: ignore all-in-one pref
$filter['owner'][] = $user;
}
// show addressbook of a single user?
elseif ($user && $path != '/addressbook/' || $user === 0)
{
$filter['owner'] = $user;
}
// should we hide the accounts addressbook
if ($GLOBALS['egw_info']['user']['preferences']['addressbook']['hide_accounts'] === '1') $filter['account_id'] = null;
// process REPORT filters or multiget href's
$nresults = null;
if (($id || $options['root']['name'] != 'propfind') && !$this->_report_filters($options,$filter,$id, $nresults))
{
return false;
}
if ($id) $path = dirname($path).'/'; // carddav_name get's added anyway in the callback
if ($this->debug) error_log(__METHOD__."($path,".array2string($options).",,$user,$id) filter=".array2string($filter));
// check if we have to return the full contact data or just the etag's
if (!($filter['address_data'] = $options['props'] == 'all' &&
$options['root']['ns'] == Api\CalDAV::CARDDAV) && is_array($options['props']))
{
foreach($options['props'] as $prop)
{
if ($prop['name'] == 'address-data')
{
$filter['address_data'] = true;
break;
}
}
}
// rfc 6578 sync-collection report: filter for sync-token is already set in _report_filters
if ($options['root']['name'] == 'sync-collection')
{
// callback to query sync-token, after propfind_callbacks / iterator is run and
// stored max. modification-time in $this->sync_collection_token
$files['sync-token'] = array($this, 'get_sync_collection_token');
$files['sync-token-params'] = array($path, $user);
$this->sync_collection_token = null;
$filter['order'] = 'contact_modified ASC'; // return oldest modifications first
$filter['sync-collection'] = true;
}
if (isset($nresults))
{
$files['files'] = $this->propfind_callback($path, $filter, array(0, (int)$nresults));
// hack to support limit with sync-collection report: contacts are returned in modified ASC order (oldest first)
// if limit is smaller then full result, return modified-1 as sync-token, so client requests next chunk incl. modified
// (which might contain further entries with identical modification time)
if ($options['root']['name'] == 'sync-collection' && $this->bo->total > $nresults)
{
--$this->sync_collection_token;
$files['sync-token-params'][] = true; // tel get_sync_collection_token that we have more entries
}
}
else
{
// return iterator, calling ourself to return result in chunks
$files['files'] = new Api\CalDAV\PropfindIterator($this,$path,$filter,$files['files']);
}
return true;
}
/**
* Callback for profind iterator
*
* @param string $path
* @param array& $filter
* @param array|boolean $start =false false=return all or array(start,num)
* @return array with "files" array with values for keys path and props
*/
function &propfind_callback($path,array &$filter,$start=false,$report_not_found_multiget_ids=true)
{
//error_log(__METHOD__."('$path', ".array2string($filter).", ".array2string($start).", $report_not_found_multiget_ids)");
$starttime = microtime(true);
$filter_in = $filter;
if (($address_data = $filter['address_data']))
{
$handler = self::_get_handler();
}
unset($filter['address_data']);
if (isset($filter['order']))
{
$order = $filter['order'];
unset($filter['order']);
}
else
{
$order = 'egw_addressbook.contact_id';
}
// detect sync-collection report
$sync_collection_report = $filter['sync-collection'];
unset($filter['sync-collection']);
if (isset($filter[self::$path_attr]))
{
if (!is_array($filter[self::$path_attr])) $filter[self::$path_attr] = (array)$filter[self::$path_attr];
$requested_multiget_ids =& $filter[self::$path_attr];
}
$files = array();
// we query etag and modified, as LDAP does not have the strong sql etag
$cols = array('id','uid','etag','modified','n_fn');
if (!in_array(self::$path_attr,$cols)) $cols[] = self::$path_attr;
// we need tid for sync-collection report
if (array_key_exists('tid', $filter) && !isset($filter['tid']) && !in_array('tid', $cols)) $cols[] = 'tid';
if (($contacts =& $this->bo->search(array(),$cols,$order,'','',False,'AND',$start,$filter)))
{
// filter[tid] === null also returns no longer shared contacts, to remove them from devices, we need to mark them here as deleted
// to do so we need to read not deleted sharing info of potential candidates (not deleted and no regular access), as search does NOT
$id2key = [];
foreach($contacts as $key => &$contact)
{
if ($contact['tid'] !== Api\Contacts::DELETED_TYPE &&
// check for (deleted) shared access
(!isset($filter['owner']) || !in_array($contact['owner'], (array)$filter['owner'])) &&
!$this->bo->check_perms(Acl::READ, $contact, false, $this->user, 0))
{
$id2key[$contact['id']] = $key;
}
}
if ($id2key)
{
foreach($this->bo->read_shared(array_keys($id2key), false) as $id => $shared)
{
$contacts[$id2key[$id]]['shared'] = $shared;
if (!$this->bo->check_perms(Acl::READ, $contact, false, $this->user))
{
$contacts[$id2key[$id]]['tid'] = Api\Contacts::DELETED_TYPE;
}
}
}
foreach($contacts as &$contact)
{
// remove contact from requested multiget ids, to be able to report not found urls
if ($requested_multiget_ids && ($k = array_search($contact[self::$path_attr], $requested_multiget_ids)) !== false)
{
unset($requested_multiget_ids[$k]);
}
// sync-collection report: deleted entry need to be reported without properties
if ($contact['tid'] == Api\Contacts::DELETED_TYPE)
{
$files[] = array('path' => $path.urldecode($this->get_path($contact)));
continue;
}
$props = array(
'getcontenttype' => Api\CalDAV::mkprop('getcontenttype', 'text/vcard'),
'getlastmodified' => $contact['modified'],
'displayname' => $contact['n_fn'],
);
if ($address_data)
{
$content = $handler->getVCard($contact['id'],$this->charset,false);
$props['getcontentlength'] = bytes($content);
$props[] = Api\CalDAV::mkprop(Api\CalDAV::CARDDAV, 'address-data', $content);
}
$files[] = $this->add_resource($path, $contact, $props);
}
// sync-collection report --> return modified of last contact as sync-token
if ($sync_collection_report)
{
$this->sync_collection_token = $contact['modified'];
}
}
// last chunk or no chunking: add accounts from different repo and report missing multiget urls
if (!$start || (empty($contact)?0:count($contacts)) < $start[1])
{
//error_log(__METHOD__."('$path', ".array2string($filter).", ".array2string($start)."; $report_not_found_multiget_ids) last chunk detected: count()=".count($contacts)." < $start[1]");
// add accounts after contacts, if enabled and stored in different repository
if ($this->bo->so_accounts && is_array($filter['owner']) && in_array('0', $filter['owner']))
{
$accounts_filter = $filter_in;
$accounts_filter['owner'] = '0';
if ($sync_collection_report) $token_was = $this->sync_collection_token;
self::$path_attr = 'id';
self::$path_extension = '.vcf';
$files = array_merge($files, $this->propfind_callback($path, $accounts_filter, false, false));
self::$path_attr = 'carddav_name';
self::$path_extension = '';
if ($sync_collection_report && $token_was > $this->sync_collection_token)
{
$this->sync_collection_token = $token_was;
}
}
// add groups after contacts, but only if enabled and NOT for '/addressbook/' (!isset($filter['owner'])
if (in_array('D',$this->home_set_pref) && (string)$filter['owner'] !== '0')
{
$where = array(
'list_owner' => isset($filter['owner'])?$filter['owner']:array_keys($this->bo->grants)
);
// add sync-token to support sync-collection report
if ($sync_collection_report)
{
list(,$sync_token) = explode('>', $filter[0]);
if ((int)$sync_token) $where[] = 'list_modified>'.$GLOBALS['egw']->db->from_unixtime((int)$sync_token);
}
if (isset($filter[self::$path_attr])) // multiget report?
{
$where['list_'.self::$path_attr] = $filter[self::$path_attr];
}
//error_log(__METHOD__."() filter=".array2string($filter).", do_groups=".in_array('D',$this->home_set_pref).", where=".array2string($where));
if (($lists = $this->bo->read_lists($where,'contact_uid',$where['list_owner']))) // limit to contacts in same AB!
{
foreach($lists as $list)
{
$list[self::$path_attr] = $list['list_carddav_name'];
$etag = $list['list_id'].':'.$list['list_etag'];
// for all-in-one addressbook, add selected ABs to etag
if (isset($filter['owner']) && is_array($filter['owner']))
{
$etag .= ':'.implode('-',$filter['owner']);
}
$props = array(
'getcontenttype' => Api\CalDAV::mkprop('getcontenttype', 'text/vcard'),
'getlastmodified' => Api\DateTime::to($list['list_modified'],'ts'),
'displayname' => $list['list_name'],
'getetag' => '"'.$etag.'"',
);
if ($address_data)
{
$content = $handler->getGroupVCard($list);
$props['getcontentlength'] = bytes($content);
$props[] = Api\CalDAV::mkprop(Api\CalDAV::CARDDAV, 'address-data', $content);
}
$files[] = $this->add_resource($path, $list, $props);
// remove list from requested multiget ids, to be able to report not found urls
if ($requested_multiget_ids && ($k = array_search($list[self::$path_attr], $requested_multiget_ids)) !== false)
{
unset($requested_multiget_ids[$k]);
}
if ($sync_collection_report && $this->sync_collection_token < ($ts=$GLOBALS['egw']->db->from_timestamp($list['list_modified'])))
{
$this->sync_collection_token = $ts;
}
}
}
}
// report not found multiget urls
if ($report_not_found_multiget_ids && $requested_multiget_ids)
{
foreach($requested_multiget_ids as $id)
{
$files[] = array('path' => $path.$id.self::$path_extension);
}
}
}
if ($this->debug) error_log(__METHOD__."($path,".array2string($filter).','.array2string($start).") took ".(microtime(true) - $starttime).' to return '.count($files).' items');
return $files;
}
/**
* Process the filters from the CalDAV REPORT request
*
* @param array $options
* @param array &$cal_filters
* @param string $id
* @param int &$nresult on return limit for number or results or unchanged/null
* @return boolean true if filter could be processed
*/
function _report_filters($options,&$filters,$id, &$nresults)
{
if ($options['filters'])
{
/* Example of a complex filter used by Mac Addressbook
<B:filter test="anyof">
<B:prop-filter name="FN" test="allof">
<B:text-match collation="i;unicode-casemap" match-type="contains">becker</B:text-match>
<B:text-match collation="i;unicode-casemap" match-type="contains">ralf</B:text-match>
</B:prop-filter>
<B:prop-filter name="EMAIL" test="allof">
<B:text-match collation="i;unicode-casemap" match-type="contains">becker</B:text-match>
<B:text-match collation="i;unicode-casemap" match-type="contains">ralf</B:text-match>
</B:prop-filter>
<B:prop-filter name="NICKNAME" test="allof">
<B:text-match collation="i;unicode-casemap" match-type="contains">becker</B:text-match>
<B:text-match collation="i;unicode-casemap" match-type="contains">ralf</B:text-match>
</B:prop-filter>
</B:filter>
*/
$filter_test = isset($options['filters']['attrs']) && isset($options['filters']['attrs']['test']) ?
$options['filters']['attrs']['test'] : 'anyof';
$prop_filters = array();
$matches = $prop_test = $column = null;
foreach($options['filters'] as $n => $filter)
{
if (!is_int($n)) continue; // eg. attributes of filter xml element
switch((string)$filter['name'])
{
case 'param-filter':
$this->caldav->log(__METHOD__."(...) param-filter='{$filter['attrs']['name']}' not (yet) implemented!");
break;
case 'prop-filter': // can be multiple prop-filter, see example
if ($matches) $prop_filters[] = implode($prop_test=='allof'?' AND ':' OR ',$matches);
$matches = array();
$prop_filter = strtoupper($filter['attrs']['name']);
$prop_test = isset($filter['attrs']['test']) ? $filter['attrs']['test'] : 'anyof';
if ($this->debug > 1) error_log(__METHOD__."(...) prop-filter='$prop_filter', test='$prop_test'");
break;
case 'is-not-defined':
$matches[] = '('.$column."='' OR ".$column.' IS NULL)';
break;
case 'text-match': // prop-filter can have multiple text-match, see example
if (!isset($this->filter_prop2cal[$prop_filter])) // eg. not existing NICKNAME in EGroupware
{
if ($this->debug || $prop_filter != 'NICKNAME') error_log(__METHOD__."(...) text-match: $prop_filter {$filter['attrs']['match-type']} '{$filter['data']}' unknown property '$prop_filter' --> ignored");
$column = false; // to ignore following data too
}
else
{
switch($filter['attrs']['collation']) // todo: which other collations allowed, we are allways unicode
{
case 'i;unicode-casemap':
default:
$comp = ' '.$GLOBALS['egw']->db->capabilities[Api\Db::CAPABILITY_CASE_INSENSITIV_LIKE].' ';
break;
}
$column = $this->filter_prop2cal[strtoupper($prop_filter)];
if (strpos($column, '_') === false) $column = 'contact_'.$column;
if (!isset($filters['order'])) $filters['order'] = $column;
$match_type = $filter['attrs']['match-type'];
$negate_condition = isset($filter['attrs']['negate-condition']) && $filter['attrs']['negate-condition'] == 'yes';
}
break;
case '': // data of text-match element
if (isset($filter['data']) && isset($column))
{
if ($column) // false for properties not known to EGroupware
{
$value = str_replace(array('%', '_'), array('\\%', '\\_'), $filter['data']);
switch($match_type)
{
case 'equals':
$sql_filter = $column . $comp . $GLOBALS['egw']->db->quote($value);
break;
default:
case 'contains':
$sql_filter = $column . $comp . $GLOBALS['egw']->db->quote('%'.$value.'%');
break;
case 'starts-with':
$sql_filter = $column . $comp . $GLOBALS['egw']->db->quote($value.'%');
break;
case 'ends-with':
$sql_filter = $column . $comp . $GLOBALS['egw']->db->quote('%'.$value);
break;
}
$matches[] = ($negate_condition ? 'NOT ' : '').$sql_filter;
if ($this->debug > 1) error_log(__METHOD__."(...) text-match: $prop_filter $match_type' '{$filter['data']}'");
}
unset($column);
break;
}
// fall through
default:
$this->caldav->log(__METHOD__."(".array2string($options).",,$id) unknown filter=".array2string($filter).' --> ignored');
break;
}
}
if ($matches) $prop_filters[] = implode($prop_test=='allof'?' AND ':' OR ',$matches);
if ($prop_filters)
{
$filters[] = $filter = '(('.implode($filter_test=='allof'?') AND (':') OR (', $prop_filters).'))';
if ($this->debug) error_log(__METHOD__."(path=$options[path], ...) sql-filter: $filter");
}
}
// parse limit from $options['other']
/* Example limit
<B:limit>
<B:nresults>10</B:nresults>
</B:limit>
*/
foreach((array)$options['other'] as $option)
{
switch($option['name'])
{
case 'nresults':
$nresults = (int)$option['data'];
//error_log(__METHOD__."(...) options[other]=".array2string($options['other'])." --> nresults=$nresults");
break;
case 'limit':
break;
case 'href':
break; // from addressbook-multiget, handled below
// rfc 6578 sync-report
case 'sync-token':
if (!empty($option['data']))
{
$parts = explode('/', $option['data']);
$sync_token = array_pop($parts);
$filters[] = 'contact_modified>'.(int)$sync_token;
$filters['tid'] = null; // to return deleted entries too
}
break;
case 'sync-level':
if ($option['data'] != '1')
{
$this->caldav->log(__METHOD__."(...) only sync-level {$option['data']} requested, but only 1 supported! options[other]=".array2string($options['other']));
}
break;
default:
$this->caldav->log(__METHOD__."(...) unknown xml tag '{$option['name']}': options[other]=".array2string($options['other']));
break;
}
}
// multiget --> fetch the url's
if ($options['root']['name'] == 'addressbook-multiget')
{
$ids = array();
foreach($options['other'] as $option)
{
if ($option['name'] == 'href')
{
$parts = explode('/',$option['data']);
if (($id = urldecode(array_pop($parts))))
{
$ids[] = self::$path_extension ? basename($id,self::$path_extension) : $id;
}
}
}
if ($ids) $filters[self::$path_attr] = $ids;
if ($this->debug) error_log(__METHOD__."(...) addressbook-multiget: ids=".implode(',',$ids));
}
elseif ($id)
{
$filters[self::$path_attr] = self::$path_extension ? basename($id,self::$path_extension) : $id;
}
//error_log(__METHOD__."() options[other]=".array2string($options['other'])." --> filters=".array2string($filters));
return true;
}
/**
* Handle get request for an event
*
* @param array &$options
* @param int $id
* @param int $user =null account_id
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function get(&$options,$id,$user=null)
{
unset($user); // not used, but required by function signature
if (!is_array($contact = $this->_common_get_put_delete('GET',$options,$id)))
{
return $contact;
}
$handler = self::_get_handler();
$options['data'] = $contact['list_id'] ? $handler->getGroupVCard($contact) :
$handler->getVCard($contact['id'],$this->charset,false);
// e.g. Evolution does not understand 'text/vcard'
$options['mimetype'] = 'text/x-vcard; charset='.$this->charset;
header('Content-Encoding: identity');
header('ETag: "'.$this->get_etag($contact).'"');
return true;
}
/**
* Handle put request for a contact
*
* @param array &$options
* @param int $id
* @param int $user =null account_id of owner, default null
* @param string $prefix =null user prefix from path (eg. /ralf from /ralf/addressbook)
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function put(&$options,$id,$user=null,$prefix=null)
{
if ($this->debug) error_log(__METHOD__.'('.array2string($options).",$id,$user)");
$oldContact = $this->_common_get_put_delete('PUT',$options,$id);
if (!is_null($oldContact) && !is_array($oldContact))
{
if ($this->debug) error_log(__METHOD__."(,'$id', $user, '$prefix') returning ".array2string($oldContact));
return $oldContact;
}
$handler = self::_get_handler();
// Fix for Apple Addressbook
$vCard = preg_replace('/item\d\.(ADR|TEL|EMAIL|URL)/', '\1',
htmlspecialchars_decode($options['content']));
$charset = null;
if (!empty($options['content_type']))
{
$content_type = explode(';', $options['content_type']);
if (count($content_type) > 1)
{
array_shift($content_type);
foreach ($content_type as $attribute)
{
trim($attribute);
list($key, $value) = explode('=', $attribute);
switch (strtolower($key))
{
case 'charset':
$charset = strtoupper(substr($value,1,-1));
}
}
}
}
$contact = $handler->vcardtoegw($vCard, $charset);
if (is_array($oldContact) || ($oldContact = $this->bo->read(array('contact_uid' => $contact['uid']))))
{
$contactId = $oldContact['id'];
$retval = true;
}
else
{
// new entry
$contactId = -1;
$retval = '201 Created';
}
$is_group = $contact['##X-ADDRESSBOOKSERVER-KIND'] == 'group';
if ($oldContact && $is_group !== isset($oldContact['list_id']))
{
throw new Api\Exception\AssertionFailed(__METHOD__."(,'$id',$user,'$prefix') can contact into group or visa-versa!");
}
if (!$is_group && is_array($contact['cat_id']))
{
$contact['cat_id'] = implode(',',$this->bo->find_or_add_categories($contact['cat_id'], $contactId));
}
elseif ($contactId > 0)
{
$contact['cat_id'] = null;
}
if (is_array($oldContact))
{
$contact['id'] = $oldContact['id'];
// dont allow the client to overwrite certain values
$contact['uid'] = $oldContact['uid'];
$contact['owner'] = $oldContact['owner'];
$contact['private'] = $oldContact['private'];
$contact['carddav_name'] = $oldContact['carddav_name'];
$contact['tid'] = $oldContact['tid'];
$contact['creator'] = $oldContact['creator'];
$contact['created'] = $oldContact['created'];
$contact['account_id'] = $oldContact['account_id'];
}
else
{
$contact['carddav_name'] = $id;
// only set owner, if user is explicitly specified in URL (check via prefix, NOT for /addressbook/) or sync-all-in-one!)
if ($prefix && !in_array('O',$this->home_set_pref) && $user)
{
$contact['owner'] = $user;
}
// check if default addressbook is synced and not Api\Accounts, if not use (always synced) personal addressbook
elseif(!$this->bo->default_addressbook || !in_array($this->bo->default_addressbook,$this->home_set_pref))
{
$contact['owner'] = $GLOBALS['egw_info']['user']['account_id'];
}
else
{
$contact['owner'] = $this->bo->default_addressbook;
$contact['private'] = $this->bo->default_private;
}
// check if user has add rights for addressbook
// done here again, as _common_get_put_delete knows nothing about default addressbooks...
if (!($this->bo->grants[$contact['owner']] & Acl::ADD))
{
if ($this->debug) error_log(__METHOD__."(,'$id', $user, '$prefix') returning '403 Forbidden'");
return '403 Forbidden';
}
}
if ($this->http_if_match) $contact['etag'] = self::etag2value($this->http_if_match);
$contact['photo_unchanged'] = false; // photo needs saving
if (!($save_ok = $is_group ? $this->save_group($contact, $oldContact) : $this->bo->save($contact)))
{
if ($this->debug) error_log(__METHOD__."(,$id) save(".array2string($contact).") failed, Ok=$save_ok");
if ($save_ok === 0)
{
// honor Prefer: return=representation for 412 too (no need for client to explicitly reload)
$this->check_return_representation($options, $id, $user);
return '412 Precondition Failed';
}
return '403 Forbidden'; // happens when writing new entries in AB's without ADD rights
}
if (empty($contact['etag']) || empty($contact['cardav_name']))
{
if ($is_group)
{
if (($contact = $this->bo->read_list($save_ok)))
{
// re-read group to get correct etag (not dublicate etag code here)
$contact = $this->read($contact['list_'.self::$path_attr], $options['path']);
}
}
else
{
$contact = $this->bo->read($save_ok);
}
//error_log(__METHOD__."(, $id, '$user') read(_list)($save_ok) returned ".array2string($contact));
}
// send evtl. necessary respose headers: Location, etag, ...
$this->put_response_headers($contact, $options['path'], $retval, self::$path_attr != 'id');
if ($this->debug > 1) error_log(__METHOD__."(,'$id', $user, '$prefix') returning ".array2string($retval));
return $retval;
}
/**
* Save distribition-list / group
*
* @param array $contact
* @param array|false $oldContact
* @return int|boolean $list_id or false on error
*/
function save_group(array &$contact, $oldContact=null)
{
$data = array('list_name' => $contact['n_fn']);
if (!isset($contact['owner'])) $contact['owner'] = $GLOBALS['egw_info']['user']['account_id'];
foreach(array('id','carddav_name','uid','owner') as $name)
{
$data['list_'.$name] = $contact[$name];
}
//error_log(__METHOD__.'('.array2string($contact).', '.array2string($oldContact).') data='.array2string($data));
if (($list_id=$this->bo->add_list(empty($contact[self::$path_attr]) ? null : array('list_'.self::$path_attr => $contact[self::$path_attr]),
$contact['owner'], null, $data)))
{
// update members given in $contact['##X-ADDRESSBOOKSERVER-MEMBER']
$new_members = $contact['##X-ADDRESSBOOKSERVER-MEMBER'];
if ($new_members[1] == ':' && ($n = unserialize($new_members)))
{
$new_members = $n['values'];
}
else
{
$new_members = array($new_members);
}
foreach($new_members as &$uid)
{
$uid = substr($uid,9); // cut off "urn:uuid:" prefix
}
if ($oldContact)
{
$to_add = array_diff($new_members,$oldContact['members']);
$to_delete = array_diff($oldContact['members'],$new_members);
}
else
{
$to_add = $new_members;
}
//error_log('to_add='.array2string($to_add).', to_delete='.array2string($to_delete));
if ($to_add || $to_delete)
{
$to_add_ids = $to_delete_ids = array();
$filter = array('uid' => $to_delete ? array_merge($to_add, $to_delete) : $to_add);
if (($contacts =& $this->bo->search(array(), array('id', 'uid'),'','','',False,'AND',false,$filter)))
{
foreach($contacts as $c)
{
if ($to_delete && in_array($c['uid'], $to_delete))
{
$to_delete_ids[] = $c['id'];
}
else
{
$to_add_ids[] = $c['id'];
}
}
}
//error_log('to_add_ids='.array2string($to_add_ids).', to_delete_ids='.array2string($to_delete_ids));
if ($to_add_ids) $this->bo->add2list($to_add_ids, $list_id, array());
if ($to_delete_ids) $this->bo->remove_from_list($to_delete_ids, $list_id);
}
// reread as update of list-members updates etag and modified
if (($contact = $this->bo->read_list($list_id)))
{
// re-read group to get correct etag (not dublicate etag code here)
$contact = $this->read($contact['list_'.self::$path_attr]);
}
}
if ($this->debug > 1) error_log(__METHOD__.'('.array2string($contact).', '.array2string($oldContact).') on return contact='.array2string($data).' returning '.array2string($list_id));
return $list_id;
}
/**
* Query ctag for addressbook
*
* @param string $path
* @param int $user
* @return string
*/
public function getctag($path,$user)
{
static $ctags = array(); // a little per request caching, in case ctag and sync-token is both requested
if (isset($ctags[$path])) return $ctags[$path];
$user_in = $user;
// not showing addressbook of a single user?
if (is_null($user) || $user === '' || $path == '/addressbook/') $user = null;
// If "Sync selected addressbooks into one" is set --> ctag need to take selected AB's into account too
if ($user && $user == $GLOBALS['egw_info']['user']['account_id'] && in_array('O',$this->home_set_pref))
{
$user = array_merge((array)$user,array_keys($this->get_shared(true))); // true: ignore all-in-one pref
// include accounts ctag, if accounts stored different from contacts (eg.in LDAP or ADS)
if ($this->bo->so_accounts && in_array('0', $user))
{
$accounts_ctag = $this->bo->get_ctag('0');
}
}
$ctag = $this->bo->get_ctag($user);
// include lists-ctag, if enabled
if (in_array('D',$this->home_set_pref))
{
$lists_ctag = $this->bo->lists_ctag($user);
}
//error_log(__METHOD__."('$path', ".array2string($user_in).") --> user=".array2string($user)." --> ctag=$ctag=".date('Y-m-d H:i:s',$ctag).", lists_ctag=".($lists_ctag ? $lists_ctag.'='.date('Y-m-d H:i:s',$lists_ctag) : '').' returning '.max($ctag,$lists_ctag));
unset($user_in);
return $ctags[$path] = max($ctag, $accounts_ctag, $lists_ctag);
}
/**
* Add extra properties for addressbook collections
*
* Example for supported-report-set syntax from Apples Calendarserver:
* <D:supported-report-set>
* <supported-report>
* <report>
* <addressbook-query xmlns='urn:ietf:params:xml:ns:carddav'/>
* </report>
* </supported-report>
* <supported-report>
* <report>
* <addressbook-multiget xmlns='urn:ietf:params:xml:ns:carddav'/>
* </report>
* </supported-report>
* </D:supported-report-set>
* @link http://www.mail-archive.com/calendarserver-users@lists.macosforge.org/msg01156.html
*
* @param array $props =array() regular props by the Api\CalDAV handler
* @param string $displayname
* @param string $base_uri =null base url of handler
* @param int $user =null account_id of owner of collection
* @return array
*/
public function extra_properties(array $props, $displayname, $base_uri=null, $user=null)
{
unset($displayname, $base_uri, $user); // not used, but required by function signature
if (!isset($props['addressbook-description']))
{
// default addressbook description: can be overwritten via PROPPATCH, in which case it's already set
$props['addressbook-description'] = Api\CalDAV::mkprop(Api\CalDAV::CARDDAV,'addressbook-description',$props['displayname']);
}
// setting an max image size, so iOS scales the images before transmitting them
// we currently scale down to width of 240px, which tests shown to be ~20k
$props['max-image-size'] = Api\CalDAV::mkprop(Api\CalDAV::CARDDAV,'max-image-size',24*1024);
// supported reports (required property for CardDAV)
$props['supported-report-set'] = array(
'addressbook-query' => Api\CalDAV::mkprop('supported-report',array(
Api\CalDAV::mkprop('report',array(
Api\CalDAV::mkprop(Api\CalDAV::CARDDAV,'addressbook-query',''))))),
'addressbook-multiget' => Api\CalDAV::mkprop('supported-report',array(
Api\CalDAV::mkprop('report',array(
Api\CalDAV::mkprop(Api\CalDAV::CARDDAV,'addressbook-multiget',''))))),
);
// only advertice rfc 6578 sync-collection report, if "delete-prevention" is switched on (deleted entries get marked deleted but not actualy deleted
if ($GLOBALS['egw_info']['server']['history'])
{
$props['supported-report-set']['sync-collection'] = Api\CalDAV::mkprop('supported-report',array(
Api\CalDAV::mkprop('report',array(
Api\CalDAV::mkprop('sync-collection','')))));
}
return $props;
}
/**
* Get the handler and set the supported fields
*
* @return addressbook_vcal
*/
private function _get_handler()
{
$handler = new addressbook_vcal('addressbook','text/vcard');
$supportedFields = $handler->supportedFields;
// Apple iOS or OS X addressbook
if ($this->agent == 'cfnetwork' || $this->agent == 'dataaccess')
{
$databaseFields = $handler->databaseFields;
// use just CELL and IPHONE, CELL;WORK and CELL;HOME are NOT understood
//'TEL;CELL;WORK' => array('tel_cell'),
//'TEL;CELL;HOME' => array('tel_cell_private'),
$supportedFields['TEL;CELL'] = array('tel_cell');
unset($supportedFields['TEL;CELL;WORK']);
$supportedFields['TEL;IPHONE'] = array('tel_cell_private');
unset($supportedFields['TEL;CELL;HOME']);
$databaseFields['X-ABSHOWAS'] = $supportedFields['X-ABSHOWAS'] = array('fileas_type'); // Horde vCard class uses uppercase prop-names!
// Apple Addressbook pre Lion (OS X 10.7) messes up CLASS and CATEGORIES (Lion cant set them but leaves them alone)
$matches = null;
if (preg_match('|CFNetwork/([0-9]+)|i', $_SERVER['HTTP_USER_AGENT'],$matches) && $matches[1] < 520 ||
// iOS 5.1.1 does not display CLASS or CATEGORY, but wrongly escapes multiple, comma-separated categories
// and appends CLASS: PUBLIC to an empty NOTE: field --> leaving them out for iOS
$this->agent == 'dataaccess')
{
unset($supportedFields['CLASS']);
unset($databaseFields['CLASS']);
unset($supportedFields['CATEGORIES']);
unset($databaseFields['CATEGORIES']);
}
if (preg_match('|CFNetwork/([0-9]+)|i', $_SERVER['HTTP_USER_AGENT'],$matches) && $matches[1] < 520)
{
// gd cant parse or resize images stored from snow leopard addressbook: gd-jpeg:
// - JPEG library reports unrecoverable error
// - Passed data is not in 'JPEG' format
// - Couldn't create GD Image Stream out of Data
// FF (10), Safari (5.1.3) and Chrome (17) cant display it either --> ignore images
unset($supportedFields['PHOTO']);
unset($databaseFields['PHOTO']);
}
$handler->setDatabaseFields($databaseFields);
}
$handler->setSupportedFields('GroupDAV',$this->agent,$supportedFields);
return $handler;
}
/**
* Handle delete request for an event
*
* @param array &$options
* @param int $id
* @param int $user account_id of collection owner
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function delete(&$options,$id,$user)
{
unset($user); // not used, but required by function signature
if (!is_array($contact = $this->_common_get_put_delete('DELETE',$options,$id)))
{
return $contact;
}
if (isset($contact['list_id']))
{
$ok = $this->bo->delete_list($contact['list_id']) !== false;
}
elseif (($ok = $this->bo->delete($contact['id'],self::etag2value($this->http_if_match))) === 0)
{
return '412 Precondition Failed';
}
return $ok;
}
/**
* Read a contact
*
* We have to make sure to not return or even consider in read deleted contacts, as the might have
* the same UID and/or carddav_name as not deleted contacts and would block access to valid entries
*
* @param string|int $id
* @param string $path =null
* @return array|boolean array with entry, false if no read rights, null if $id does not exist
*/
function read($id, $path=null)
{
static $non_deleted_tids=null;
if (is_null($non_deleted_tids))
{
$tids = $this->bo->content_types;
unset($tids[Api\Contacts::DELETED_TYPE]);
$non_deleted_tids = array_keys($tids);
}
$contact = $this->bo->read(array(self::$path_attr => $id, 'tid' => $non_deleted_tids));
// if contact not found and accounts stored NOT like contacts, try reading it without path-extension as id
if (is_null($contact) && $this->bo->so_accounts && ($c = $this->bo->read($test=basename($id, '.vcf'))))
{
$contact = $c;
}
// see if we have a distribution-list / group with that id
// bo->read_list(..., true) limits returned uid to same owner's addressbook, as iOS and OS X addressbooks
// only understands/shows that and if return more, save_lists would delete the others ones on update!
$limit_in_ab = true;
list(,$account_lid,$app) = explode('/',$path); // eg. /<username>/addressbook/<id>
// /<username>/addressbook/ with home_set_prefs containing 'O'=all-in-one contains selected ab's
if($account_lid == $GLOBALS['egw_info']['user']['account_lid'] && $app == 'addressbook' && in_array('O',$this->home_set_pref))
{
$limit_in_ab = array_keys($this->get_shared(true));
$limit_in_ab[] = $GLOBALS['egw_info']['user']['account_id'];
}
/* we are currently not syncing distribution-lists/groups to /addressbook/ as
* Apple clients use that only as directory gateway
elseif ($account_lid == 'addressbook') // /addressbook/ contains all readably contacts
{
$limit_in_ab = array_keys($this->bo->grants);
}*/
if (!$contact && ($contact = $this->bo->read_lists(array('list_'.self::$path_attr => $id),'contact_uid',$limit_in_ab)))
{
$contact = array_shift($contact);
$contact['n_fn'] = $contact['n_family'] = $contact['list_name'];
foreach(array('owner','id','carddav_name','modified','modifier','created','creator','etag','uid') as $name)
{
$contact[$name] = $contact['list_'.$name];
}
// if NOT limited to containing AB ($limit_in_ab === true), add that limit to etag
if ($limit_in_ab !== true)
{
$contact['etag'] .= ':'.implode('-',$limit_in_ab);
}
}
elseif($contact === array()) // not found from read_lists()
{
$contact = null;
}
if ($contact && $contact['tid'] == Api\Contacts::DELETED_TYPE)
{
$contact = null; // handle deleted events, as not existing (404 Not Found)
}
if ($this->debug > 1) error_log(__METHOD__."('$id') returning ".array2string($contact));
return $contact;
}
/**
* Check if user has the neccessary rights on a contact
*
* @param int $acl Acl::READ, Acl::EDIT or Acl::DELETE
* @param array|int $contact contact-array or id
* @return boolean null if entry does not exist, false if no access, true if access permitted
*/
function check_access($acl,$contact)
{
return $this->bo->check_perms($acl, $contact, true); // true = deny to delete accounts
}
/**
* Get grants of current user and app
*
* Reimplemented to account for static LDAP ACL and accounts (owner=0)
*
* @return array user-id => EGW_ACL_ADD|EGW_ACL_READ|EGW_ACL_EDIT|EGW_ACL_DELETE pairs
*/
public function get_grants()
{
$grants = $this->bo->get_grants($this->bo->user);
// remove add and delete grants for accounts (for admins too)
// as accounts can not be created as contacts, they eg. need further data
// and admins might not recognice they delete an account incl. its data
if (isset($grants[0])) $grants[0] &= ~(EGW_ACL_ADD|EGW_ACL_DELETE);
return $grants;
}
/**
* Return calendars/addressbooks shared from other users with the current one
*
* @param boolean $ignore_all_in_one =false if true, return selected addressbooks and not array() for all-in-one
* @return array account_id => account_lid pairs
*/
function get_shared($ignore_all_in_one=false)
{
$shared = array();
// if "Sync all selected addressbook into one" is set --> no (additional) shared addressbooks
if (!$ignore_all_in_one && in_array('O',$this->home_set_pref)) return array();
// replace symbolic id's with real nummeric id's
foreach(array(
'G' => $GLOBALS['egw_info']['user']['account_primary_group'],
'U' => '0',
) as $sym => $id)
{
if (($key = array_search($sym, $this->home_set_pref)) !== false)
{
$this->home_set_pref[$key] = $id;
}
}
foreach(array_keys($this->bo->get_addressbooks(Acl::READ)) as $id)
{
if (($id || $GLOBALS['egw_info']['user']['preferences']['addressbook']['hide_accounts'] !== '1') &&
$GLOBALS['egw_info']['user']['account_id'] != $id && // no current user and no accounts, if disabled in ab prefs
(in_array('A',$this->home_set_pref) || in_array((string)$id,$this->home_set_pref)) &&
is_numeric($id) && ($owner = $id ? $this->accounts->id2name($id) : 'accounts'))
{
$shared[$id] = 'addressbook-'.$owner;
}
}
return $shared;
}
/**
* Hook to add properties to CardDAV root
*
* OS X 10.11.4 addressbook does a propfind for "addressbook-home-set" and "directory-gateway"
* in the root and does not continue without it.
*
* @param array $data
*/
public static function groupdav_root_props(array $data)
{
$data['props']['addressbook-home-set'] = Api\CalDAV::mkprop(Api\CalDAV::CARDDAV, 'addressbook-home-set', array(
Api\CalDAV::mkprop('href',$data['caldav']->base_uri.'/'.$GLOBALS['egw_info']['user']['account_lid'].'/')));
$data['props']['principal-address'] = Api\CalDAV::mkprop(Api\CalDAV::CARDDAV, 'principal-address',
$GLOBALS['egw_info']['user']['preferences']['addressbook']['hide_accounts'] === '1' ? '' : array(
Api\CalDAV::mkprop('href',$data['caldav']->base_uri.'/addressbook-accounts/'.$GLOBALS['egw_info']['user']['person_id'].'.vcf')));
$data['props']['directory-gateway'] = Api\CalDAV::mkprop(Api\CalDAV::CARDDAV, 'directory-gateway', array(
Api\CalDAV::mkprop('href',$data['caldav']->base_uri.'/addressbook/')));
}
/**
* Return appliction specific settings
*
* @param array $hook_data values for keys 'location', 'type' and 'account_id'
* @return array of array with settings
*/
static function get_settings($hook_data)
{
$addressbooks = array(
'A' => lang('All'),
'G' => lang('Primary Group'),
'U' => lang('Accounts'),
'O' => lang('Sync all selected into one'),
'D' => lang('Distribution lists as groups')
);
if (!isset($hook_data['setup']) && in_array($hook_data['type'], array('user', 'group')))
{
$user = $hook_data['account_id'];
$addressbook_bo = new Api\Contacts();
$addressbooks += $addressbook_bo->get_addressbooks(Acl::READ, null, $user);
if ($user > 0) unset($addressbooks[$user]); // allways synced
unset($addressbooks[$user.'p']);// ignore (optional) private addressbook for now
}
// allow to force no other addressbooks
if ($hook_data['type'] === 'forced')
{
$addressbooks['N'] = lang('None');
}
// rewriting owner=0 to 'U', as 0 get's always selected by prefs
// not removing it for default or forced prefs based on current users pref
if (!isset($addressbooks[0]) && (in_array($hook_data['type'], array('user', 'group')) ||
$GLOBALS['egw_info']['user']['preferences']['addressbook']['hide_accounts'] === '1'))
{
unset($addressbooks['U']);
}
else
{
unset($addressbooks[0]);
}
$settings = array();
$settings['addressbook-home-set'] = array(
'type' => 'multiselect',
'label' => 'Addressbooks to sync in addition to personal addressbook',
'name' => 'addressbook-home-set',
'help' => lang('Only supported by a few fully conformant clients (eg. from Apple). If you have to enter a URL, it will most likely not be supported!').
'<br/>'.lang('They will be sub-folders in users home (%1 attribute).','CardDAV "addressbook-home-set"').
'<br/>'.lang('Select "%1", if your client does not support multiple addressbooks.',lang('Sync all selected into one')).
'<br/>'.lang('Select "%1", if your client support groups, eg. OS X or iOS addressbook.',lang('Distribution lists as groups')),
'values' => $addressbooks,
'xmlrpc' => True,
'admin' => False,
);
return $settings;
}
}
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