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* CardDAV: rfc 6578 sync-collection report (more efficient way to sync contacts)

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This commit is contained in:
Ralf Becker 2012-09-23 20:19:35 +00:00
parent a86a3d72c6
commit a6f541edba
2 changed files with 82 additions and 2 deletions
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79
addressbook/inc/class.addressbook_groupdav.inc.php
View File

@ -146,9 +146,22 @@ class addressbook_groupdav extends groupdav_handler
}
}
}
// rfc 6578 sync-collection report: filter for sync-token is already set in _report_filters
if ($options['root']['name'] == 'sync-collection')
{
// query sync-token before result, so changed happening while result get queried are not lost
$files['sync-token'] = $this->get_sync_token($path, $user);
}
if (isset($nresults))
{
$files['files'] = $this->propfind_callback($path, $filter, array(0, (int)$nresults));
if ($options['root']['name'] == 'sync-collection' && isset($files['files']['sync-token']))
{
$files['sync-token'] = $this->get_sync_token($path, $user, $files['files']['sync-token']);
unset($files['files']['sync-token']);
}
}
else
{
@ -189,10 +202,18 @@ class addressbook_groupdav extends groupdav_handler
// we query etag and modified, as LDAP does not have the strong sql etag
$cols = array('id','uid','etag','modified','n_fn');
if (!in_array(self::$path_attr,$cols)) $cols[] = self::$path_attr;
// we need tid for sync-collection report
if (array_key_exists('tid', $filter) && !isset($filter['tid']) && !in_array('tid', $cols)) $cols[] = 'tid';
if (($contacts =& $this->bo->search(array(),$cols,$order,'','',False,'AND',$start,$filter)))
{
foreach($contacts as &$contact)
{
// sync-collection report: deleted entry need to be reported without properties
if ($contact['tid'] == addressbook_bo::DELETED_TYPE && array_key_exists('tid', $filter) && !isset($filter['tid']))
{
$files[] = array('path' => $path.urldecode($this->get_path($contact)));
continue;
}
$props = array(
'getcontenttype' => HTTP_WebDAV_Server::mkprop('getcontenttype', 'text/vcard'),
'getlastmodified' => $contact['modified'],
@ -207,12 +228,26 @@ class addressbook_groupdav extends groupdav_handler
$files[] = $this->add_resource($path, $contact, $props);
}
}
// hack to support limit with sync-collection report: contacts are returned in modified ASC order (oldest first)
// if limit is smaller then full result, return modified-1 as sync-token, so client requests next chunk incl. modified
// (which might contain further entries with identical modification time)
if ($contact['tid'] == addressbook_bo::DELETED_TYPE && array_key_exists('tid', $filter) &&
$start[0] == 0 && $start[1] != groupdav_propfind_iterator::CHUNK_SIZE && $this->bo->total > $start[1])
{
$files['sync-token'] = $contact['modified']-1;
}
// add groups after contacts, but only if enabled and NOT for '/addressbook/' (!isset($filter['owner'])
if (in_array('D',$this->home_set_pref) && (!$start || count($contacts) < $start[1]) && isset($filter['owner']))
{
$where = array(
'list_owner' => isset($filter['owner'])?$filter['owner']:array_keys($this->bo->grants)
);
// add sync-token to support sync-collection report
if (isset($filter[0]) && strpos($filter[0], 'contact_modified>') === 0)
{
list(,$sync_token) = explode('>', $filter[0]);
$where[] = 'list_modified>FROM_UNIXTIME('.(int)$sync_token.')';
}
if (isset($filter[self::$path_attr])) // multiget report?
{
$where['list_'.self::$path_attr] = $filter[self::$path_attr];
@ -383,8 +418,22 @@ class addressbook_groupdav extends groupdav_handler
break;
case 'href':
break; // from addressbook-multiget, handled below
// rfc 6578 sync-report
case 'sync-token':
if (!empty($option['data']))
{
$parts = explode('/', $option['data']);
$sync_token = array_pop($parts);
$filters[] = 'contact_modified>'.(int)$sync_token;
$filters['tid'] = null; // to return deleted entries too
$filters['order'] = 'contact_modified ASC'; // return oldest modifications first
}
break;
case 'sync-level':
// ignored for now
break;
default:
$this->groupdav->log(__METHOD__."(...) unknown xml: options[other]=".array2string($options['other']));
$this->groupdav->log(__METHOD__."(...) unknown xml tag '{$option['name']}': options[other]=".array2string($options['other']));
break;
}
}
@ -410,6 +459,7 @@ class addressbook_groupdav extends groupdav_handler
{
$filters[self::$path_attr] = groupdav_handler::$path_extension ? basename($id,groupdav_handler::$path_extension) : $id;
}
//error_log(__METHOD__."() options[other]=".array2string($options['other'])." --> filters=".array2string($filters));
return true;
}
@ -651,6 +701,10 @@ class addressbook_groupdav extends groupdav_handler
*/
public function getctag($path,$user)
{
static $ctags = array(); // a little per request caching, in case ctag and sync-token is both requested
if (isset($ctags[$path])) return $ctags[$path];
// not showing addressbook of a single user?
if (is_null($user) || $user === '' || $path == '/addressbook/') $user = null;
@ -666,7 +720,24 @@ class addressbook_groupdav extends groupdav_handler
$lists_ctag = $this->bo->lists_ctag($user);
}
//error_log(__METHOD__."('$path', ".array2string($user).") ctag=$ctag=".date('Y-m-d H:i:s',$ctag).", lists_ctag=".($lists_ctag ? $lists_ctag.'='.date('Y-m-d H:i:s',$lists_ctag) : '').' returning '.max($ctag,$lists_ctag));
return max($ctag,$lists_ctag);
return $ctags[$path] = max($ctag,$lists_ctag);
}
/**
* Query sync-token for addressbook
*
* @param string $path
* @param int $user
* @param int $modified=null default getctag
* @return string
*/
public function get_sync_token($path, $user, $modified=null)
{
if (!isset($modified)) $modified = $this->getctag($path, $user);
return (strpos($this->base_uri, 'http') === 0 ? '' : // need a full uri, not just a path
($_SERVER["HTTPS"] === "on" ? "https:" : "http:") .'//' . $_SERVER['HTTP_HOST']).
$this->base_uri.$path.$modified;
}
/**
@ -711,6 +782,10 @@ class addressbook_groupdav extends groupdav_handler
HTTP_WebDAV_Server::mkprop('supported-report',array(
HTTP_WebDAV_Server::mkprop('report',array(
HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-multiget',''))))),
// rfc 6578 sync-collection report
HTTP_WebDAV_Server::mkprop('supported-report',array(
HTTP_WebDAV_Server::mkprop('report',array(
HTTP_WebDAV_Server::mkprop('sync-collection',''))))),
));
return $props;
}

5
phpgwapi/inc/class.groupdav.inc.php
View File

@ -849,6 +849,11 @@ class groupdav extends HTTP_WebDAV_Server
$props['getctag'] = self::mkprop(
groupdav::CALENDARSERVER,'getctag',$handler->getctag($path,$user));
}
// add sync-token url if handler implements it
if (method_exists($handler,'get_sync_token') && $this->prop_requested('sync-token') === true)
{
$props['sync-token'] = self::mkprop('sync-token', $handler->get_sync_token($path,$user));
}
}
if ($handler && $user)
{