mirror of
https://github.com/EGroupware/egroupware.git
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534 lines
16 KiB
PHP
534 lines
16 KiB
PHP
<?php
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/**
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* EGroupware: GroupDAV access: addressbook handler
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*
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* @link http://www.egroupware.org
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package addressbook
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* @subpackage groupdav
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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @copyright (c) 2007-9 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @version $Id$
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*/
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/**
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* EGroupware: GroupDAV access: addressbook handler
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*
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* Propfind now uses a groupdav_propfind_iterator with a callback to query huge addressbooks in chunk,
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* without getting into problems with memory_limit.
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*/
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class addressbook_groupdav extends groupdav_handler
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{
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/**
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* bo class of the application
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*
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* @var addressbook_bo
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*/
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var $bo;
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var $filter_prop2cal = array(
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'UID' => 'uid',
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//'NICKNAME',
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'EMAIL' => 'email',
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'FN' => 'n_fn',
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);
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/**
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* Charset for exporting data, as some clients ignore the headers specifying the charset
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*
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* @var string
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*/
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var $charset = 'utf-8';
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/**
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* What attribute is used to construct the path, default id, can be uid too
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*/
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const PATH_ATTRIBUTE = 'id';
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/**
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* Constructor
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*
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* @param string $app 'calendar', 'addressbook' or 'infolog'
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* @param int $debug=null debug-level to set
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* @param string $base_uri=null base url of handler
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* @param string $principalURL=null pricipal url of handler
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*/
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function __construct($app,$debug=null,$base_uri=null,$principalURL=null)
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{
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parent::__construct($app,$debug,$base_uri,$principalURL);
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$this->bo = new addressbook_bo();
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}
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/**
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* Create the path for a contact
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*
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* @param array $contact
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* @return string
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*/
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static function get_path($contact)
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{
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return $contact[self::PATH_ATTRIBUTE].'.vcf';
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}
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/**
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* Handle propfind in the addressbook folder
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*
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* @param string $path
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* @param array $options
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* @param array &$files
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* @param int $user account_id
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* @param string $id=''
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* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
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*/
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function propfind($path,$options,&$files,$user,$id='')
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{
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$filter = array();
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// show addressbook of a single user?
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if ($user && $path != '/addressbook/') $filter['contact_owner'] = $user;
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// should we hide the accounts addressbook
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if ($GLOBALS['egw_info']['user']['preferences']['addressbook']['hide_accounts']) $filter['account_id'] = null;
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// process REPORT filters or multiget href's
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if (($id || $options['root']['name'] != 'propfind') && !$this->_report_filters($options,$filter,$id))
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{
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return false;
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}
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if ($this->debug) error_log(__METHOD__."($path,".array2string($options).",,$user,$id) filter=".array2string($filter));
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// check if we have to return the full contact data or just the etag's
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if (!($filter['address_data'] = $options['props'] == 'all' &&
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$options['root']['ns'] == groupdav::CARDDAV) && is_array($options['props']))
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{
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foreach($options['props'] as $prop)
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{
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if ($prop['name'] == 'address-data')
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{
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$filter['address_data'] = true;
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break;
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}
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}
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}
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// return iterator, calling ourself to return result in chunks
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$files['files'] = new groupdav_propfind_iterator($this,$path,$filter,$files['files']);
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return true;
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}
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/**
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* Callback for profind interator
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*
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* @param string $path
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* @param array $filter
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* @param array|boolean $start=false false=return all or array(start,num)
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* @return array with "files" array with values for keys path and props
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*/
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function &propfind_callback($path,array $filter,$start=false)
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{
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$starttime = microtime(true);
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if (($address_data = $filter['address_data']))
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{
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$handler = self::_get_handler();
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}
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unset($filter['address_data']);
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$files = array();
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// we query etag and modified, as LDAP does not have the strong sql etag
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if (($contacts =& $this->bo->search(array(),$address_data ? false : array('id','uid','etag','modified'),'contact_id','','',False,'AND',$start,$filter)))
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{
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foreach($contacts as &$contact)
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{
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$props = array(
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HTTP_WebDAV_Server::mkprop('getetag',$this->get_etag($contact)),
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HTTP_WebDAV_Server::mkprop('getcontenttype', 'text/vcard'),
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// getlastmodified and getcontentlength are required by WebDAV and Cadaver eg. reports 404 Not found if not set
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HTTP_WebDAV_Server::mkprop('getlastmodified', $contact['modified']),
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);
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if ($address_data)
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{
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$content = $handler->getVCard($contact['id'],$this->charset,false);
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$props[] = HTTP_WebDAV_Server::mkprop('getcontentlength',bytes($content));
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$props[] = HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'address-data',$content,true);
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}
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else
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{
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$props[] = HTTP_WebDAV_Server::mkprop('getcontentlength', ''); // expensive to calculate and no CalDAV client uses it
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}
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$files[] = array(
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'path' => $path.self::get_path($contact),
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'props' => $props,
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);
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}
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}
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if ($this->debug) error_log(__METHOD__."($path,".array2string($filter).','.array2string($start).") took ".(microtime(true) - $starttime).' to return '.count($files).' items');
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return $files;
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}
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/**
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* Process the filters from the CalDAV REPORT request
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*
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* @param array $options
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* @param array &$cal_filters
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* @param string $id
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* @return boolean true if filter could be processed, false for requesting not here supported VTODO items
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*/
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function _report_filters($options,&$filters,$id)
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{
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if ($options['filters'])
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{
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foreach($options['filters'] as $filter)
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{
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switch($filter['name'])
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{
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case 'prop-filter':
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if ($this->debug > 1) error_log(__METHOD__."($path,...) prop-filter='{$filter['attrs']['name']}'");
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$prop_filter = $filter['attrs']['name'];
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break;
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case 'text-match':
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if ($this->debug > 1) error_log(__METHOD__."($path,...) text-match: $prop_filter='{$filter['data']}'");
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if (!isset($this->filter_prop2cal[strtoupper($prop_filter)]))
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{
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if ($this->debug) error_log(__METHOD__."($path,".str_replace(array("\n",' '),'',print_r($options,true)).",,$user) unknown property '$prop_filter' --> ignored");
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}
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else
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{
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switch($filter['attrs']['match-type'])
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{
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default:
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case 'equals':
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$filters[$this->filter_prop2cal[strtoupper($prop_filter)]] = $filter['data'];
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break;
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case 'substr': // ToDo: check RFC4790
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$filters[] = $this->filter_prop2cal[strtoupper($prop_filter)].' LIKE '.$GLOBALS['egw']->db->quote($filter['data']);
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break;
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}
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}
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unset($prop_filter);
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break;
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case 'param-filter':
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if ($this->debug) error_log(__METHOD__."($path,...) param-filter='{$filter['attrs']['name']}' not (yet) implemented!");
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break;
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default:
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if ($this->debug) error_log(__METHOD__."($path,".array2string($options).",,$user) unknown filter --> ignored");
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break;
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}
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}
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}
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// multiget --> fetch the url's
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if ($options['root']['name'] == 'addressbook-multiget')
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{
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$ids = array();
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foreach($options['other'] as $option)
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{
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if ($option['name'] == 'href')
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{
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$parts = explode('/',$option['data']);
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if (($id = array_pop($parts))) $ids[] = basename($id,'.vcf');
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}
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}
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if ($ids) $filters[self::PATH_ATTRIBUTE] = $ids;
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if ($this->debug) error_log(__METHOD__."($path,,,$user) addressbook-multiget: ids=".implode(',',$ids));
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}
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elseif ($id)
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{
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$filters[self::PATH_ATTRIBUTE] = basename($id,'.vcf');
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}
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return true;
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}
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/**
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* Handle get request for an event
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*
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* @param array &$options
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* @param int $id
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* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
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*/
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function get(&$options,$id)
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{
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if (!is_array($contact = $this->_common_get_put_delete('GET',$options,$id)))
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{
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return $contact;
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}
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$handler = self::_get_handler();
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$options['data'] = $handler->getVCard($contact['id'],$this->charset,false);
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// e.g. Evolution does not understand 'text/vcard'
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$options['mimetype'] = 'text/x-vcard; charset='.$this->charset;
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header('Content-Encoding: identity');
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header('ETag: '.$this->get_etag($contact));
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return true;
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}
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/**
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* Handle put request for an event
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*
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* @param array &$options
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* @param int $id
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* @param int $user=null account_id of owner, default null
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* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
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*/
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function put(&$options,$id,$user=null)
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{
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if ($this->debug) error_log(__METHOD__.'('.array2string($options).",$id,$user)");
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$oldContact = $this->_common_get_put_delete('PUT',$options,$id);
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if (!is_null($oldContact) && !is_array($oldContact))
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{
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return $oldContact;
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}
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$handler = self::_get_handler();
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$vCard = htmlspecialchars_decode($options['content']);
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$charset = null;
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if (!empty($options['content_type']))
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{
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$content_type = explode(';', $options['content_type']);
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if (count($content_type) > 1)
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{
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array_shift($content_type);
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foreach ($content_type as $attribute)
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{
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trim($attribute);
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list($key, $value) = explode('=', $attribute);
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switch (strtolower($key))
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{
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case 'charset':
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$charset = strtoupper(substr($value,1,-1));
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}
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}
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}
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}
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if (is_array($oldContact))
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{
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$contactId = $oldContact['id'];
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$retval = true;
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}
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else
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{
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// new entry?
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if (($foundContacts = $handler->search($vCard, null, false, $charset)))
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{
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if (($contactId = array_shift($foundContacts)) &&
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($oldContact = $this->bo->read($contactId)))
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{
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$retval = '301 Moved Permanently';
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}
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else
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{
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// to be safe
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$contactId = -1;
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$retval = '201 Created';
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}
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}
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else
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{
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// new entry
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$contactId = -1;
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$retval = '201 Created';
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}
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}
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$contact = $handler->vcardtoegw($vCard, $charset);
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if (is_array($contact['cat_id']))
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{
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$contact['cat_id'] = implode(',',$this->bo->find_or_add_categories($contact['cat_id'], $contactId));
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}
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elseif ($contactId > 0)
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{
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$contact['cat_id'] = $oldContact['cat_id'];
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}
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if (is_array($oldContact))
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{
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$contact['id'] = $oldContact['id'];
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// dont allow the client to overwrite certain values
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$contact['uid'] = $oldContact['uid'];
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//$contact['owner'] = $oldContact['owner'];
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$contact['private'] = $oldContact['private'];
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}
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$contact['owner'] = $user;
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if ($this->http_if_match) $contact['etag'] = self::etag2value($this->http_if_match);
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if (!($save_ok = $this->bo->save($contact)))
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{
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if ($this->debug) error_log(__METHOD__."(,$id) save(".array2string($contact).") failed, Ok=$save_ok");
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if ($save_ok === 0)
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{
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return '412 Precondition Failed';
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}
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return false;
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}
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if (!isset($contact['etag']))
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{
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$contact = $this->read($save_ok);
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}
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header('ETag: '.$this->get_etag($contact));
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if ($retval !== true)
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{
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$path = preg_replace('|(.*)/[^/]*|', '\1/', $options['path']);
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header($h='Location: '.$this->base_uri.$path.self::get_path($contact));
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if ($this->debug) error_log(__METHOD__."($method,,$id) header('$h'): $retval");
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return $retval;
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}
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return true;
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}
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/**
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* Query ctag for addressbook
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*
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* @return string
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*/
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public function getctag($path,$user)
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{
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$filter = array();
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// show addressbook of a single user?
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if ($user && $path != '/addressbook/') $filter['contact_owner'] = $user;
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// should we hide the accounts addressbook
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if ($GLOBALS['egw_info']['user']['preferences']['addressbook']['hide_accounts']) $filter['account_id'] = null;
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$result = $this->bo->search(array(),'MAX(contact_modified) AS contact_modified','','','',false,'AND',false,$filter);
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if (empty($result))
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{
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$ctag = 0;
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}
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else
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{
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$ctag = $result[0]['contact_modified'];
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}
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return 'EGw-'.$ctag.'-wGE';
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}
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/**
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* Add the privileges of the current user
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*
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* @param array $props=array() regular props by the groupdav handler
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* @return array
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*/
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static function current_user_privilege_set(array $props=array())
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{
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$props[] = HTTP_WebDAV_Server::mkprop(groupdav::DAV,'current-user-privilege-set',
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array(HTTP_WebDAV_Server::mkprop(groupdav::DAV,'privilege',
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array(
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'read',''),
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HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'read-free-busy',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'read-current-user-privilege-set',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'bind',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'unbind',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'schedule-post',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'schedule-post-vevent',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'schedule-respond',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'schedule-respond-vevent',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'schedule-deliver',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'schedule-deliver-vevent',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'write',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'write-properties',''),
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'write-content',''),
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))));
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return $props;
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}
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/**
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* Add extra properties for addressbook collections
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*
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* Example for supported-report-set syntax from Apples Calendarserver:
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* <D:supported-report-set>
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* <supported-report>
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* <report>
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* <addressbook-query xmlns='urn:ietf:params:xml:ns:carddav'/>
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* </report>
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* </supported-report>
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* <supported-report>
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* <report>
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* <addressbook-multiget xmlns='urn:ietf:params:xml:ns:carddav'/>
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* </report>
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* </supported-report>
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* </D:supported-report-set>
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* @link http://www.mail-archive.com/calendarserver-users@lists.macosforge.org/msg01156.html
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*
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* @param array $props=array() regular props by the groupdav handler
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* @param string $displayname
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* @param string $base_uri=null base url of handler
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* @return array
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*/
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static function extra_properties(array $props=array(), $displayname, $base_uri=null)
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{
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// addressbook description
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$displayname = $GLOBALS['egw']->translation->convert(lang('Addressbook of') . ' ' .
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$displayname,
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$GLOBALS['egw']->translation->charset(),'utf-8');
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$props[] = HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-description',$displayname);
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// supported reports (required property for CardDAV)
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$props[] = HTTP_WebDAV_Server::mkprop('supported-report-set',array(
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HTTP_WebDAV_Server::mkprop('supported-report',array(
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HTTP_WebDAV_Server::mkprop('report',array(
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HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-query',''))))),
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HTTP_WebDAV_Server::mkprop('supported-report',array(
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HTTP_WebDAV_Server::mkprop('report',array(
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HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-multiget',''))))),
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));
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//$props = self::current_user_privilege_set($props);
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return $props;
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}
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/**
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* Get the handler and set the supported fields
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*
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* @return addressbook_vcal
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*/
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private function _get_handler()
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{
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$handler = new addressbook_vcal('addressbook','text/vcard');
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$handler->setSupportedFields('GroupDAV',$this->agent);
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return $handler;
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}
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/**
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* Handle delete request for an event
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*
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* @param array &$options
|
|
* @param int $id
|
|
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
|
|
*/
|
|
function delete(&$options,$id)
|
|
{
|
|
if (!is_array($contact = $this->_common_get_put_delete('DELETE',$options,$id)))
|
|
{
|
|
return $contact;
|
|
}
|
|
if (($Ok = $this->bo->delete($contact['id'],self::etag2value($this->http_if_match))) === 0)
|
|
{
|
|
return '412 Precondition Failed';
|
|
}
|
|
//return $ok;
|
|
}
|
|
|
|
/**
|
|
* Read a contact
|
|
*
|
|
* @param string/id $id
|
|
* @return array/boolean array with entry, false if no read rights, null if $id does not exist
|
|
*/
|
|
function read($id)
|
|
{
|
|
return $this->bo->read(self::PATH_ATTRIBUTE == 'id' ? $id : array(self::PATH_ATTRIBUTE => $id));
|
|
}
|
|
|
|
/**
|
|
* Check if user has the neccessary rights on a contact
|
|
*
|
|
* @param int $acl EGW_ACL_READ, EGW_ACL_EDIT or EGW_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);
|
|
}
|
|
}
|