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egroupware_official/phpgwapi/inc/class.groupdav.inc.php
Ralf Becker 7f7e84afaa activating calendar-proxy in OPTIONS
2011-09-16 11:48:28 +00:00

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<?php
/**
* EGroupware: CalDAV/CardDAV/GroupDAV access
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage groupdav
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @copyright (c) 2007-11 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @version $Id$
*/
require_once('HTTP/WebDAV/Server.php');
/**
* EGroupware: GroupDAV access
*
* Using a modified PEAR HTTP/WebDAV/Server class from egw-pear!
*
* One can use the following url's releative (!) to http://domain.com/egroupware/groupdav.php
*
* - /addressbook/ all addressbooks current user has rights to
* - /calendar/ calendar of current user
* - /infolog/ infologs of current user
* - / base of the above, only certain clients (KDE, Apple) can autodetect folders from there
* - /<username>/addressbook/ addressbook of user or group <username> given the user has rights to view it
* - /<username>/calendar/ calendar of user <username> given the user has rights to view it
* - /<username>/infolog/ InfoLog's of user <username> given the user has rights to view it
* - /<username>/ base of the above, only certain clients (KDE, Apple) can autodetect folders from there
*
* Calling one of the above collections with a GET request / regular browser generates an automatic index
* from the data of a allprop PROPFIND, allow to browse CalDAV/CardDAV/GroupDAV tree with a regular browser.
*
* @todo All principal urls should either contain no account_lid (eg. base64 of it) or use urlencode($account_lid)
* @link http://www.groupdav.org GroupDAV spec
*/
class groupdav extends HTTP_WebDAV_Server
{
/**
* DAV namespace
*/
const DAV = 'DAV:';
/**
* GroupDAV namespace
*/
const GROUPDAV = 'http://groupdav.org/';
/**
* CalDAV namespace
*/
const CALDAV = 'urn:ietf:params:xml:ns:caldav';
/**
* CardDAV namespace
*/
const CARDDAV = 'urn:ietf:params:xml:ns:carddav';
/**
* Apple Calendarserver namespace (eg. for ctag)
*/
const CALENDARSERVER = 'http://calendarserver.org/ns/';
/**
* Apple Addressbookserver namespace (eg. for ctag)
*/
const ADDRESSBOOKSERVER = 'http://addressbookserver.org/ns/';
/**
* Apple iCal namespace (eg. for calendar color)
*/
const ICAL = 'http://apple.com/ns/ical/';
/**
* Realm and powered by string
*/
const REALM = 'EGroupware CalDAV/CardDAV/GroupDAV server';
var $dav_powered_by = self::REALM;
var $http_auth_realm = self::REALM;
var $root = array(
'calendar' => array(
'resourcetype' => array(self::GROUPDAV => 'vevent-collection', self::CALDAV => 'calendar'),
'component-set' => array(self::GROUPDAV => 'VEVENT'),
),
'addressbook' => array(
'resourcetype' => array(self::GROUPDAV => 'vcard-collection', self::CARDDAV => 'addressbook'),
'component-set' => array(self::GROUPDAV => 'VCARD'),
),
'infolog' => array(
'resourcetype' => array(self::GROUPDAV => 'vtodo-collection', self::CALDAV => 'calendar'),
'component-set' => array(self::GROUPDAV => 'VTODO'),
),
'principals' => array(
'resourcetype' => array(self::DAV => 'principal'),
)
);
/**
* Debug level: 0 = nothing, 1 = function calls, 2 = more info, 3 = complete $_SERVER array
*
* Can now be enabled on a per user basis in GroupDAV prefs, if it is set here to 0!
*
* The debug messages are send to the apache error_log
*
* @var integer
*/
var $debug = 0;
/**
* eGW's charset
*
* @var string
*/
var $egw_charset;
/**
* Instance of our application specific handler
*
* @var groupdav_handler
*/
var $handler;
/**
* principal URL
*
* @var string
*/
var $principalURL;
/**
* Reference to the accounts class
*
* @var accounts
*/
var $accounts;
function __construct()
{
if (!$this->debug) $this->debug = (int)$GLOBALS['egw_info']['user']['preferences']['groupdav']['debug_level'];
if ($this->debug > 2) error_log('groupdav: $_SERVER='.array2string($_SERVER));
// identify clients, which do NOT support path AND full url in <D:href> of PROPFIND request
switch(groupdav_handler::get_agent())
{
case 'kde': // KAddressbook (at least in 3.5 can NOT subscribe / does NOT find addressbook)
$this->client_require_href_as_url = true;
$this->cnrnd = true; // Akonadi seems to require redundant namespaces, see KDE bug #265096 https://bugs.kde.org/show_bug.cgi?id=265096
break;
case 'cfnetwork': // Apple addressbook app
case 'dataaccess': // iPhone addressbook
$this->client_require_href_as_url = false;
$this->cnrnd = true;
break;
case 'davkit': // iCal app in OS X 10.6 created wrong request, if full url given
case 'coredav': // iCal app in OS X 10.7
$this->client_require_href_as_url = false;
$this->cnrnd = true;
break;
case 'cfnetwork_old':
$this->crrnd = true; // Older Apple Addressbook.app does not cope with namespace redundancy
break;
case 'neon':
$this->cnrnd = true; // neon clients like cadaver
break;
}
// adding EGroupware version to X-Dav-Powered-By header eg. "EGroupware 1.8.001 CalDAV/CardDAV/GroupDAV server"
$this->dav_powered_by = str_replace('EGroupware','EGroupware '.$GLOBALS['egw_info']['server']['versions']['phpgwapi'],
$this->dav_powered_by);
parent::HTTP_WebDAV_Server();
$this->egw_charset = translation::charset();
if (strpos($this->base_uri, 'http') === 0)
{
$this->principalURL = $this->_slashify($this->base_uri);
}
else
{
$this->principalURL = (@$_SERVER["HTTPS"] === "on" ? "https:" : "http:") .
'//' . $_SERVER['HTTP_HOST'] . $_SERVER['SCRIPT_NAME'] . '/';
}
$this->principalURL .= 'principals/users/'.$GLOBALS['egw_info']['user']['account_lid'].'/';
// if client requires pathes instead of URLs
if ($this->client_require_href_as_url === false)
{
$this->principalURL = parse_url($this->principalURL,PHP_URL_PATH);
}
$this->accounts = $GLOBALS['egw']->accounts;
}
/**
* get the handler for $app
*
* @param string $app
* @return groupdav_handler
*/
function app_handler($app)
{
return groupdav_handler::app_handler($app,$this->debug,$this->base_uri,$this->principalURL);
}
/**
* OPTIONS request, allow to modify the standard responses from the pear-class
*
* @param string $path
* @param array &$dav
* @param array &$allow
*/
function OPTIONS($path, &$dav, &$allow)
{
list(,$app) = explode('/',$path);
switch($app)
{
case 'calendar':
if (!in_array(2,$dav)) $dav[] = 2;
$dav[] = 'access-control';
$dav[] = 'calendar-access';
//$dav[] = 'calendar-schedule';
$dav[] = 'calendar-proxy';
//$dav[] = 'calendar-avialibility';
//$dav[] = 'calendarserver-private-events';
break;
case 'addressbook':
if (!in_array(2,$dav)) $dav[] = 2;
//$dav[] = 3; // revision aka versioning support not implemented
$dav[] = 'access-control';
$dav[] = 'addressbook'; // CardDAV uses "addressbook" NOT "addressbook-access"
break;
default:
if (!in_array(2,$dav)) $dav[] = 2;
$dav[] = 'access-control';
$dav[] = 'calendar-access';
$dav[] = 'addressbook';
}
// not yet implemented: $dav[] = 'access-control';
}
/**
* PROPFIND and REPORT method handler
*
* @param array general parameter passing array
* @param array return array for file properties
* @return bool true on success
*/
function PROPFIND(&$options, &$files, $method='PROPFIND')
{
if ($this->debug) error_log(__CLASS__."::$method(".array2string($options,true).')');
// parse path in form [/account_lid]/app[/more]
if (!self::_parse_path($options['path'],$id,$app,$user,$user_prefix) && $app && !$user)
{
if ($this->debug > 1) error_log(__CLASS__."::$method: user='$user', app='$app', id='$id': 404 not found!");
return '404 Not Found';
}
if ($this->debug > 1) error_log(__CLASS__."::$method: user='$user', app='$app', id='$id'");
if ($user)
{
$account_lid = $this->accounts->id2name($user);
}
else
{
$account_lid = $GLOBALS['egw_info']['user']['account_lid'];
}
$account = $this->accounts->read($account_lid);
$files = array('files' => array());
$path = $user_prefix = $this->_slashify($user_prefix);
if (!$app) // user root folder containing apps
{
if (empty($user_prefix))
{
$user_prefix = '/'; //.$GLOBALS['egw_info']['user']['account_lid'].'/';
}
$calendar_user_address_set = array(
self::mkprop('href','urn:uuid:'.$account['account_lid']),
);
if ($user < 0)
{
$principalType = 'groups';
$displayname = lang('Group').' '.$account['account_lid'];
}
else
{
$principalType = 'users';
$displayname = $account['account_fullname'];
$calendar_user_address_set[] = self::mkprop('href','MAILTO:'.$account['account_email']);
}
$calendar_user_address_set[] = self::mkprop('href',$this->base_uri.'/principals/'.$principalType.'/'.$account['account_lid'].'/');
if ($options['depth'] && $user_prefix == '/')
{
$displayname = 'EGroupware (Cal|Card|Group)DAV server';
}
$displayname = translation::convert($displayname, translation::charset(),'utf-8');
// self url
$props = array(
self::mkprop('displayname',$displayname),
self::mkprop('owner',array(self::mkprop('href',$this->base_uri.'/principals/'.$principalType.'/'.$account_lid.'/'))),
self::mkprop('resourcetype',array(self::mkprop('collection',''))),
// adding the calendar extra property (calendar-home-set, etc.) here, allows apple iCal to "autodetect" the URL
self::mkprop(groupdav::CALDAV,'calendar-home-set',array(
self::mkprop('href',$this->base_uri.$user_prefix))),
self::mkprop(groupdav::CARDDAV,'addressbook-home-set',array(
self::mkprop('href',$this->base_uri.$user_prefix))),
self::mkprop('current-user-principal',array(self::mkprop('href',$this->principalURL))),
self::mkprop(groupdav::CALDAV,'calendar-user-address-set',$calendar_user_address_set),
self::mkprop(groupdav::CALENDARSERVER,'email-address-set',array(
self::mkprop(groupdav::CALENDARSERVER,'email-address',$GLOBALS['egw_info']['user']['email']))),
//self::mkprop('principal-URL',array(self::mkprop('href',$this->principalURL))),
self::mkprop('principal-collection-set',array(self::mkprop('href',$this->base_uri.'/principals/'))),
// OUTBOX URLs of the current user
self::mkprop(groupdav::CALDAV,'schedule-outbox-URL',array(
self::mkprop(groupdav::DAV,'href',$this->base_uri.'/calendar/'))),
);
//$props = self::current_user_privilege_set($props);
$files['files'][] = array(
'path' => $path,
'props' => $props,
);
if ($options['depth'])
{
if (strlen($path) == 1) // GroupDAV Root
{
// principals collection
$files['files'][] = array(
'path' => '/principals/',
'props' => array(
self::mkprop('displayname',lang('Accounts')),
self::mkprop('resourcetype',array(self::mkprop('principals',''))),
self::mkprop('current-user-principal',array(self::mkprop('href',$this->principalURL))),
//self::mkprop(groupdav::CALDAV,'calendar-home-set',array(
// self::mkprop('href',$this->base_uri.$user_prefix))),
//self::mkprop(groupdav::CARDDAV,'addressbook-home-set',array(
// self::mkprop('href',$this->base_uri.$user_prefix))),
//self::mkprop('principal-URL',array(self::mkprop('href',$this->principalURL))),
),
);
}
foreach($this->root as $app => $data)
{
if (!$GLOBALS['egw_info']['user']['apps'][$app]) continue; // no rights for the given app
$props = $this->_properties($app,false,$user,$path);
// add ctag if handler implements it
if (($handler = self::app_handler($app)) && method_exists($handler,'getctag'))
{
$props[] = self::mkprop(
groupdav::CALENDARSERVER,'getctag',$handler->getctag($options['path'],$user));
}
$props[] = self::mkprop('getetag','EGw-'.$app.'-wGE');
$files['files'][] = array(
'path' => $path.$app.'/',
'props' => $props,
);
}
}
return true;
}
if ($app != 'principals' && !$GLOBALS['egw_info']['user']['apps'][$app])
{
if ($this->debug) error_log(__CLASS__."::$method(path=$options[path]) 403 Forbidden: no app rights for '$app'");
return "403 Forbidden: no app rights for '$app'"; // no rights for the given app
}
if (($handler = self::app_handler($app)))
{
if ($method != 'REPORT' && !$id) // no self URL for REPORT requests (only PROPFIND) or propfinds on an id
{
$files['files'][0] = array(
'path' => $path.$app.'/',
// KAddressbook doubles the folder, if the self URL contains the GroupDAV/CalDAV resourcetypes
'props' => $this->_properties($app,$app=='addressbook'&&$handler->get_agent()=='kde',$user,$path),
);
// add ctag if handler implements it (only for depth 0)
if (method_exists($handler,'getctag'))
{
$files['files'][0]['props'][] = HTTP_WebDAV_Server::mkprop(
groupdav::CALENDARSERVER,'getctag',$handler->getctag($options['path'],$user));
}
if (!$options['depth']) return true; // depth 0 --> show only the self url
}
return $handler->propfind($this->_slashify($options['path']),$options,$files,$user,$id);
}
return '501 Not Implemented';
}
/**
* Get the properties of a collection
*
* @param string $app
* @param boolean $no_extra_types=false should the GroupDAV and CalDAV types be added (KAddressbook has problems with it in self URL)
* @param int $user=null owner of the collection, default current user
* @param string $path='/'
* @return array of DAV properties
*/
function _properties($app,$no_extra_types=false,$user=null,$path='/')
{
if ($this->debug) error_log(__METHOD__."(app='$app', no_extra_types=$no_extra_types, user='$user', path='$path')");
$user_preferences = $GLOBALS['egw_info']['user']['preferences'];
if ($user)
{
$account_lid = $this->accounts->id2name($user);
if ($user >= 0 && $GLOBALS['egw']->preferences->account_id != $user)
{
$GLOBALS['egw']->preferences->__construct($user);
$user_preferences = $GLOBALS['egw']->preferences->read_repository();
$GLOBALS['egw']->preferences->__construct($GLOBALS['egw_info']['user']['account_lid']);
}
}
else
{
$account_lid = $GLOBALS['egw_info']['user']['account_lid'];
}
if (strlen($user_preferences['calendar']['display_color']) == 9 &&
$user_preferences['calendar']['display_color'][0] == '#')
{
$display_color = $user_preferences['calendar']['display_color'];
}
else
{
$display_color = '#0040A0FF';
}
$account = $this->accounts->read($account_lid);
$displayname = $GLOBALS['egw']->translation->convert($account['account_fullname'],
$GLOBALS['egw']->translation->charset(),'utf-8');
if ($user < 0)
{
$principalType = 'groups';
}
else
{
$principalType = 'users';
}
$props = array(
self::mkprop('current-user-principal',array(self::mkprop('href',$this->principalURL))),
self::mkprop('owner',array(self::mkprop('href',$this->base_uri.'/principals/'.$principalType.'/'.$account_lid.'/'))),
//self::mkprop('principal-URL',array(self::mkprop('href',$this->principalURL))),
self::mkprop('alternate-URI-set',array(
self::mkprop('href','MAILTO:'.$GLOBALS['egw_info']['user']['email']))),
self::mkprop('principal-collection-set',array(
self::mkprop('href',$this->base_uri.'/principals/'),
)),
self::mkprop('principal-URL',array(self::mkprop('href',$this->principalURL))),
self::mkprop(groupdav::CALDAV,'calendar-user-address-set',array(
self::mkprop('href','MAILTO:'.$GLOBALS['egw_info']['user']['email']),
self::mkprop('href',$this->base_uri.'/principals/'.$principalType.'/'.$GLOBALS['egw_info']['user']['account_lid'].'/'),
self::mkprop('href','urn:uuid:'.$GLOBALS['egw_info']['user']['account_lid']))),
self::mkprop(groupdav::CALENDARSERVER,'email-address-set',array(
self::mkprop(groupdav::CALENDARSERVER,'email-address',$GLOBALS['egw_info']['user']['email']))),
self::mkprop('getetag','EGw-no-etag-wGE'), // iPhone addressbook requires an etag here!
);
switch ($app)
{
case 'calendar':
$props[] = self::mkprop(groupdav::CALDAV,'calendar-home-set',array(
self::mkprop('href',$this->base_uri.$path.'calendar/')));
// OUTBOX URLs of the current user
$props[] = self::mkprop(groupdav::CALDAV,'schedule-outbox-URL',
array(self::mkprop(groupdav::DAV,'href',$this->base_uri.'/calendar/')));
$props[] = self::mkprop(groupdav::ICAL,'calendar-color',$display_color);
break;
case 'infolog':
$props[] = self::mkprop(groupdav::CALDAV,'calendar-home-set',array(
self::mkprop('href',$this->base_uri.$path.'infolog/')));
$displayname = translation::convert(lang($app).' '.
common::grab_owner_name($user),$this->egw_charset,'utf-8');
break;
default:
$props[] = self::mkprop(groupdav::CALDAV,'calendar-home-set',array(
self::mkprop('href',$this->base_uri.$path)));
$displayname = translation::convert(lang($app).' '.
common::grab_owner_name($user),$this->egw_charset,'utf-8');
}
$props[] = self::mkprop(groupdav::CARDDAV,'addressbook-home-set',array(
self::mkprop('href',$this->base_uri.$path)));
$props[] = self::mkprop('displayname',$displayname);
foreach((array)$this->root[$app] as $prop => $values)
{
if ($prop == 'resourcetype')
{
$resourcetype = array(
self::mkprop('collection',''),
);
if (!$no_extra_types)
{
foreach($this->root[$app]['resourcetype'] as $ns => $type)
{
$resourcetype[] = self::mkprop($ns,$type,'');
}
}
$props[] = self::mkprop('resourcetype',$resourcetype);
}
else
{
foreach($values as $ns => $value)
{
$props[] = self::mkprop($ns,$prop,$value);
}
}
}
if (method_exists($app.'_groupdav','extra_properties'))
{
$displayname = translation::convert(
$account['account_id'] > 0 ? $account['account_fullname'] : lang('Group').' '.$account['account_lid'],
translation::charset(),'utf-8');
$props = ExecMethod2($app.'_groupdav::extra_properties',$props,$displayname,$this->base_uri);
}
return $props;
}
/**
* CalDAV/CardDAV REPORT method handler
*
* just calls PROPFIND()
*
* @param array general parameter passing array
* @param array return array for file properties
* @return bool true on success
*/
function REPORT(&$options, &$files)
{
if ($this->debug > 1) error_log(__METHOD__.'('.array2string($options).')');
return $this->PROPFIND($options,$files,'REPORT');
}
/**
* CalDAV/CardDAV REPORT method handler to get HTTP_WebDAV_Server to process REPORT requests
*
* Just calls http_PROPFIND()
*/
function http_REPORT()
{
parent::http_PROPFIND('REPORT');
}
/**
* GET method handler
*
* @param array $options parameter passing array
* @return bool true on success
*/
function GET(&$options)
{
if ($this->debug) error_log(__METHOD__.'('.array2string($options).')');
if (!$this->_parse_path($options['path'],$id,$app,$user) || $app == 'principals')
{
return $this->autoindex($options);
error_log(__METHOD__."(".array2string($options).") 404 Not Found");
return '404 Not Found';
}
if (($handler = self::app_handler($app)))
{
return $handler->get($options,$id,$user);
}
error_log(__METHOD__."(".array2string($options).") 501 Not Implemented");
return '501 Not Implemented';
}
/**
* Display an automatic index (listing and properties) for a collection
*
* @param array $options parameter passing array, index "path" contains requested path
*/
protected function autoindex($options)
{
$propfind_options = array(
'path' => $options['path'],
'depth' => 1,
);
$files = array();
if (($ret = $this->PROPFIND($propfind_options,$files)) !== true)
{
return $ret; // no collection
}
header('Content-type: text/html; charset='.translation::charset());
echo "<html>\n<head>\n\t<title>".'EGroupware (Cal|Card|Group)DAV server '.htmlspecialchars($options['path'])."</title>\n";
echo "\t<meta http-equiv='content-type' content='text/html; charset=utf-8' />\n";
echo "\t<style type='text/css'>\n.th { background-color: #e0e0e0; }\n.row_on { background-color: #F1F1F1; }\n".
".row_off { background-color: #ffffff; }\ntd { padding-left: 5px; }\nth { padding-left: 5px; text-align: left; }\n\t</style>\n";
echo "</head>\n<body>\n";
echo '<h1>(Cal|Card|Group)DAV ';
$path = '/groupdav.php';
foreach(explode('/',$this->_unslashify($options['path'])) as $n => $name)
{
$path .= ($n != 1 ? '/' : '').$name;
echo html::a_href(htmlspecialchars($name.'/'),$path);
}
echo "</h1>\n";
$n = 0;
foreach($files['files'] as $file)
{
if (!isset($collection_props))
{
$collection_props = $this->props2array($file['props']);
echo '<h3>'.lang('Collection listing').': '.htmlspecialchars($collection_props['DAV:displayname'])."</h3>\n";
continue; // own entry --> displaying properies later
}
if(!$n++)
{
echo "<table>\n\t<tr class='th'><th>#</th><th>".lang('Name')."</th><th>".lang('Size')."</th><th>".lang('Last modified')."</th><th>".
lang('ETag')."</th><th>".lang('Content type')."</th><th>".lang('Resource type')."</th></tr>\n";
}
$props = $this->props2array($file['props']);
//echo $file['path']; _debug_array($props);
$class = $class == 'row_on' ? 'row_off' : 'row_on';
if (substr($file['path'],-1) == '/')
{
$name = basename(substr($file['path'],0,-1)).'/';
}
else
{
$name = basename($file['path']);
}
echo "\t<tr class='$class'>\n\t\t<td>$n</td>\n\t\t<td>".html::a_href(htmlspecialchars($name),'/groupdav.php'.$file['path'])."</td>\n";
echo "\t\t<td>".$props['DAV:getcontentlength']."</td>\n";
echo "\t\t<td>".(!empty($props['DAV:getlastmodified']) ? date('Y-m-d H:i:s',$props['DAV:getlastmodified']) : '')."</td>\n";
echo "\t\t<td>".$props['DAV:getetag']."</td>\n";
echo "\t\t<td>".htmlspecialchars($props['DAV:getcontenttype'])."</td>\n";
echo "\t\t<td>".self::prop_value($props['DAV:resourcetype'])."</td>\n\t</tr>\n";
}
if (!$n)
{
echo '<p>'.lang('Collection empty.')."</p>\n";
}
else
{
echo "</table>\n";
}
echo '<h3>'.lang('Properties')."</h3>\n";
echo "<table>\n\t<tr class='th'><th>".lang('Namespace')."</th><th>".lang('Name')."</th><th>".lang('Value')."</th></tr>\n";
foreach($collection_props as $name => $value)
{
$class = $class == 'row_on' ? 'row_off' : 'row_on';
$ns = explode(':',$name);
$name = array_pop($ns);
$ns = implode(':',$ns);
echo "\t<tr class='$class'>\n\t\t<td>".htmlspecialchars($ns)."</td><td style='white-space: nowrap'>".htmlspecialchars($name)."</td>\n";
echo "\t\t<td>".self::prop_value($value)."</td>\n\t</tr>\n";
}
echo "</table>\n";
echo "</body>\n</html>\n";
common::egw_exit();
}
/**
* Format a property value for output
*
* @param mixed $value
* @return string
*/
protected function prop_value($value)
{
if (is_array($value))
{
if (isset($value[0]['ns']))
{
$value = $this->_hierarchical_prop_encode($value);
}
$value = htmlspecialchars(array2string($value));
}
elseif (preg_match('/\<(D:)?href\>[^<]+\<\/(D:)?href\>/i',$value))
{
$value = preg_replace('/\<(D:)?href\>([^<]+)\<\/(D:)?href\>/i','&lt;\\1href&gt;<a href="\\2">\\2</a>&lt;/\\3href&gt;<br />',$value);
}
else
{
$value = htmlspecialchars($value);
}
return $value;
}
/**
* Return numeric indexed array with values for keys 'ns', 'name' and 'val' as array 'ns:name' => 'val'
*
* @param array $props
* @return array
*/
protected function props2array(array $props)
{
$arr = array();
foreach($props as $prop)
{
switch($prop['ns'])
{
case 'DAV:';
$ns = 'DAV';
break;
case self::CALDAV:
$ns = 'CalDAV';
break;
case self::CARDDAV:
$ns = 'CardDAV';
break;
case self::GROUPDAV:
$ns = 'GroupDAV';
break;
default:
$ns = $prop['ns'];
}
$ns_defs = '';
$ns_hash = array($prop['ns'] => $ns, 'DAV:' => 'D');
if (is_array($prop['val']))
{
$prop['val'] = $this->_hierarchical_prop_encode($prop['val'], $prop['ns'], $ns_defs, $ns_hash);
// hack to show real namespaces instead of not (visibly) defined shortcuts
unset($ns_hash['DAV:']);
$prop['val'] = strtr($prop['val'],array_flip($ns_hash));
}
$arr[$ns.':'.$prop['name']] = $prop['val'];
}
return $arr;
}
/**
* POST method handler
*
* @param array parameter passing array
* @return bool true on success
*/
function POST(&$options)
{
// read the content in a string, if a stream is given
if (isset($options['stream']))
{
$options['content'] = '';
while(!feof($options['stream']))
{
$options['content'] .= fread($options['stream'],8192);
}
}
if ($this->debug) error_log(__METHOD__.'('.array2string($options).')');
$this->_parse_path($options['path'],$id,$app,$user);
if (($handler = self::app_handler($app)) && method_exists($handler, 'post'))
{
return $handler->post($options,$id,$user);
}
return '501 Not Implemented';
}
/**
* PUT method handler
*
* @param array parameter passing array
* @return bool true on success
*/
function PUT(&$options)
{
// read the content in a string, if a stream is given
if (isset($options['stream']))
{
$options['content'] = '';
while(!feof($options['stream']))
{
$options['content'] .= fread($options['stream'],8192);
}
}
if ($this->debug) error_log(__METHOD__.'('.array2string($options).')');
if (!$this->_parse_path($options['path'],$id,$app,$user,$prefix))
{
return '404 Not Found';
}
if (($handler = self::app_handler($app)))
{
$status = $handler->put($options,$id,$user,$prefix);
// set default stati: true --> 204 No Content, false --> should be already handled
if (is_bool($status)) $status = $status ? '204 No Content' : '400 Something went wrong';
return $status;
}
return '501 Not Implemented';
}
/**
* DELETE method handler
*
* @param array general parameter passing array
* @return bool true on success
*/
function DELETE($options)
{
if ($this->debug) error_log(__METHOD__.'('.array2string($options).')');
if (!$this->_parse_path($options['path'],$id,$app,$user))
{
return '404 Not Found';
}
if (($handler = self::app_handler($app)))
{
$status = $handler->delete($options,$id);
// set default stati: true --> 204 No Content, false --> should be already handled
if (is_bool($status)) $status = $status ? '204 No Content' : '400 Something went wrong';
return $status;
}
return '501 Not Implemented';
}
/**
* MKCOL method handler
*
* @param array general parameter passing array
* @return bool true on success
*/
function MKCOL($options)
{
if ($this->debug) error_log(__METHOD__.'('.array2string($options).')');
return '501 Not Implemented';
}
/**
* MOVE method handler
*
* @param array general parameter passing array
* @return bool true on success
*/
function MOVE($options)
{
if ($this->debug) error_log(__METHOD__.'('.array2string($options).')');
return '501 Not Implemented';
}
/**
* COPY method handler
*
* @param array general parameter passing array
* @return bool true on success
*/
function COPY($options, $del=false)
{
if ($this->debug) error_log('groupdav::'.($del ? 'MOVE' : 'COPY').'('.array2string($options).')');
return '501 Not Implemented';
}
/**
* LOCK method handler
*
* @param array general parameter passing array
* @return bool true on success
*/
function LOCK(&$options)
{
self::_parse_path($options['path'],$id,$app,$user);
$path = egw_vfs::app_entry_lock_path($app,$id);
if ($this->debug) error_log(__METHOD__.'('.array2string($options).") path=$path");
// get the app handler, to check if the user has edit access to the entry (required to make locks)
$handler = self::app_handler($app);
// TODO recursive locks on directories not supported yet
if (!$id || !empty($options['depth']) || !$handler->check_access(EGW_ACL_EDIT,$id))
{
return '409 Conflict';
}
$options['timeout'] = time()+300; // 5min. hardcoded
// dont know why, but HTTP_WebDAV_Server passes the owner in D:href tags, which get's passed unchanged to checkLock/PROPFIND
// that's wrong according to the standard and cadaver does not show it on discover --> strip_tags removes eventual tags
if (($ret = egw_vfs::lock($path,$options['locktoken'],$options['timeout'],strip_tags($options['owner']),
$options['scope'],$options['type'],isset($options['update']),false)) && !isset($options['update'])) // false = no ACL check
{
return $ret ? '200 OK' : '409 Conflict';
}
return $ret;
}
/**
* UNLOCK method handler
*
* @param array general parameter passing array
* @return bool true on success
*/
function UNLOCK(&$options)
{
self::_parse_path($options['path'],$id,$app,$user);
$path = egw_vfs::app_entry_lock_path($app,$id);
if ($this->debug) error_log(__METHOD__.'('.array2string($options).") path=$path");
return egw_vfs::unlock($path,$options['token']) ? '204 No Content' : '409 Conflict';
}
/**
* checkLock() helper
*
* @param string resource path to check for locks
* @return bool true on success
*/
function checkLock($path)
{
self::_parse_path($path,$id,$app,$user);
$path = egw_vfs::app_entry_lock_path($app,$id);
return egw_vfs::checkLock($path);
}
/**
* ACL method handler
*
* @param array general parameter passing array
* @return string HTTP status
*/
function ACL(&$options)
{
self::_parse_path($options['path'],$id,$app,$user);
if ($this->debug) error_log(__METHOD__.'('.array2string($options).") path=$path");
$options['errors'] = array();
switch ($app)
{
case 'calendar':
case 'addressbook':
case 'infolog':
$status = '200 OK'; // grant all
break;
default:
$options['errors'][] = 'no-inherited-ace-conflict';
$status = '403 Forbidden';
}
return $status;
}
/**
* Parse a path into it's id, app and user parts
*
* @param string $path
* @param int &$id
* @param string &$app addressbook, calendar, infolog (=infolog)
* @param int &$user
* @param string &$user_prefix=null
* @return boolean true on success, false on error
*/
function _parse_path($path,&$id,&$app,&$user,&$user_prefix=null)
{
if ($this->debug)
{
error_log(__METHOD__." called with ('$path') id=$id, app='$app', user=$user");
}
if ($path[0] == '/')
{
$path = substr($path, 1);
}
$parts = explode('/', $this->_unslashify($path));
if (($account_id = $this->accounts->name2id($parts[0], 'account_lid')) ||
($account_id = $this->accounts->name2id($parts[0]=urldecode($parts[0]))))
{
// /$user/$app/...
$user = array_shift($parts);
}
$app = array_shift($parts);
if ($user)
{
$user_prefix = '/'.$user;
$user = $account_id;
}
else
{
$user_prefix = '';
$user = $GLOBALS['egw_info']['user']['account_id'];
}
$id = array_pop($parts);
$ok = $id && $user && in_array($app,array('addressbook','calendar','infolog','principals'));
if ($this->debug)
{
error_log(__METHOD__."('$path') returning " . ($ok ? 'true' : 'false') . ": id='$id', app='$app', user='$user', user_prefix='$user_prefix'");
}
return $ok;
}
/**
* Add the privileges of the current user
*
* @param array $props=array() regular props by the groupdav handler
* @return array
*/
static function current_user_privilege_set(array $props=array())
{
$props[] = HTTP_WebDAV_Server::mkprop('current-user-privilege-set',
array(HTTP_WebDAV_Server::mkprop('privilege',
array(//HTTP_WebDAV_Server::mkprop('all',''),
HTTP_WebDAV_Server::mkprop('read',''),
HTTP_WebDAV_Server::mkprop('read-free-busy',''),
//HTTP_WebDAV_Server::mkprop('read-current-user-privilege-set',''),
HTTP_WebDAV_Server::mkprop('bind',''),
HTTP_WebDAV_Server::mkprop('unbind',''),
HTTP_WebDAV_Server::mkprop('schedule-post',''),
HTTP_WebDAV_Server::mkprop('schedule-post-vevent',''),
HTTP_WebDAV_Server::mkprop('schedule-respond',''),
HTTP_WebDAV_Server::mkprop('schedule-respond-vevent',''),
HTTP_WebDAV_Server::mkprop('schedule-deliver',''),
HTTP_WebDAV_Server::mkprop('schedule-deliver-vevent',''),
HTTP_WebDAV_Server::mkprop('write',''),
HTTP_WebDAV_Server::mkprop('write-properties',''),
HTTP_WebDAV_Server::mkprop('write-content',''),
))));
return $props;
}
}
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