forked from extern/egroupware
352 lines
10 KiB
PHP
352 lines
10 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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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_vcal
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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 $base_uri=null base url of handler
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*/
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function __construct($app,$debug=null,$base_uri=null)
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{
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parent::__construct($app,$debug,$base_uri);
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$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 '/addressbook/'.$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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//$starttime = microtime(true);
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$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($filter));
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// check if we have to return the full calendar data or just the etag's
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if (!($address_data = $options['props'] == 'all' && $options['root']['ns'] == groupdav::CARDDAV) && is_array($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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$address_data = true;
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break;
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}
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}
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}
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if ($address_data)
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{
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$handler = self::_get_handler();
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}
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$start = false;
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//$start = array(0,7000); // limit the number of contacts to return
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// we query etag and modified, as LDAP does not have the strong sql etag
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if (($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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//$icount= 0;
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foreach($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/x-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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//$sta = microtime(true);
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$content = $handler->getVCard($contact,$this->charset,false);
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//$en = microtime(true) - $sta;
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//error_log("getVCard took : $en");
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$props[] = HTTP_WebDAV_Server::mkprop('getcontentlength',bytes($content));
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$props[] = HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'address-data',$content);
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}
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else
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{
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$props[] = HTTP_WebDAV_Server::mkprop('getcontentlength', ''); // expensive to calculate and no CalDAV client uses it
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}
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$files['files'][] = array(
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'path' => self::get_path($contact),
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'props' => $props,
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);
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}
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}
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//$endtime = microtime(true) - $starttime; error_log(__METHOD__."($path) elapsed time : $endtime, returning ".count($files['files']).' contacts');
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return true;
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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'],$this->charset,false);
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$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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$ok = $this->_common_get_put_delete('PUT',$options,$id);
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if (!is_null($ok) && !is_array($ok))
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{
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return $ok;
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}
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$handler = self::_get_handler();
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$contact = $handler->vcardtoegw($options['content']);
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if (!is_null($ok))
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{
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$contact['id'] = $ok['id'];
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// dont allow the client to overwrite certain values
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$contact['uid'] = $ok['uid'];
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$contact['owner'] = $ok['owner'];
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$contact['private'] = $ok['private'];
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}
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if ($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 = $this->read($contact['id']);
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}
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header('ETag: '.$this->get_etag($contact));
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if (is_null($ok))
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{
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header($h='Location: '.$this->base_uri.self::get_path($contact));
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if ($this->debug) error_log(__METHOD__."($method,,$id) header('$h'): 201 Created");
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return '201 Created';
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}
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return true;
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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
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* @param int $id
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* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
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*/
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function delete(&$options,$id)
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{
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if (!is_array($contact = $this->_common_get_put_delete('DELETE',$options,$id)))
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{
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return $contact;
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}
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if (($Ok = $this->bo->delete($contact['id'],self::etag2value($this->http_if_match))) === 0)
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{
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return '412 Precondition Failed';
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}
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return $ok;
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}
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/**
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* Read a contact
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*
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* @param string/id $id
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* @return array/boolean array with entry, false if no read rights, null if $id does not exist
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*/
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function read($id)
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{
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return $this->bo->read(self::PATH_ATTRIBUTE == 'id' ? $id : array(self::PATH_ATTRIBUTE => $id));
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}
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/**
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* Check if user has the neccessary rights on a contact
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*
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* @param int $acl EGW_ACL_READ, EGW_ACL_EDIT or EGW_ACL_DELETE
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* @param array/int $contact contact-array or id
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* @return boolean null if entry does not exist, false if no access, true if access permitted
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*/
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function check_access($acl,$contact)
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{
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return $this->bo->check_perms($acl,$contact);
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}
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}
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