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allow to reuse managed-id of existing attachment in PUT request by symlinking it, return correct xml-error for invalid mananaged-id

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This commit is contained in:
Ralf Becker 2015-09-30 03:27:29 +00:00
parent c34ebcf9b2
commit c6ad6d2caa
2 changed files with 44 additions and 3 deletions
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6
calendar/inc/class.calendar_ical.inc.php
View File

@ -1099,7 +1099,7 @@ class calendar_ical extends calendar_boupdate
* @param string $charset The encoding charset for $text. Defaults to
* utf-8 for new format, iso-8859-1 for old format.
* @param string $caldav_name=null name from CalDAV client or null (to use default)
* @return int|boolean cal_id > 0 on success, false on failure or 0 for a failed etag|permission denied
* @return int|boolean|null cal_id > 0 on success, false on failure or 0 for a failed etag|permission denied or null for "403 Forbidden"
*/
function importVCal($_vcalData, $cal_id=-1, $etag=null, $merge=false, $recur_date=0, $principalURL='', $user=null, $charset=null, $caldav_name=null,$skip_notification=false)
{
@ -1743,9 +1743,9 @@ class calendar_ical extends calendar_boupdate
}
// handle ATTACH attribute for managed attachments
if ($updated_id)
if ($updated_id && groupdav::handle_attach('calendar', $updated_id, $event['attach'], $event['attach-delete-by-put']) === false)
{
groupdav::handle_attach('calendar', $updated_id, $event['attach'], $event['attach-delete-by-put']);
$return_id = null;
}
if ($this->log)

41
phpgwapi/inc/class.groupdav.inc.php
View File

@ -216,6 +216,9 @@ class groupdav extends HTTP_WebDAV_Server
function __construct()
{
// log which CalDAVTester test is currently running, set as User-Agent header
if (substr($_SERVER['HTTP_USER_AGENT'], 0, 14) == 'scripts/tests/') error_log('****** '.$_SERVER['HTTP_USER_AGENT']);
if (!$this->debug) $this->debug = (int)$GLOBALS['egw_info']['user']['preferences']['groupdav']['debug_level'];
if ($this->debug > 2) error_log('groupdav: $_SERVER='.array2string($_SERVER));
@ -1359,6 +1362,7 @@ class groupdav extends HTTP_WebDAV_Server
* @param int|string $id
* @param array $attach array of array with values for keys 'name', 'params', 'value'
* @param boolean $delete_via_put
* @return boolean false on error, eg. invalid managed id, for false an xml-error body has been send
*/
public static function handle_attach($app, $id, $attach, $delete_via_put=false)
{
@ -1397,6 +1401,32 @@ class groupdav extends HTTP_WebDAV_Server
{
if (!empty($attr['params']['FMTTYPE']))
{
if (isset($attr['params']['MANAGED-ID']))
{
// invalid managed-id
if (!($path = self::managed_id2path($attr['params']['MANAGED-ID'])) || !egw_vfs::is_readable($path))
{
error_log(__METHOD__."('$app', $id, ...) invalid MANAGED-ID ".array2string($attr));
self::xml_error(self::mkprop(self::CALDAV, 'valid-managed-id', ''));
return false;
}
if($path == ($link = egw_link::vfs_path($app, $id, egw_vfs::basename($path))))
{
error_log(__METHOD__."('$app', $id, ...) trying to modify existing MANAGED-ID --> ignored! ".array2string($attr));
continue;
}
// reuse valid managed-id --> symlink attachment
if (egw_vfs::file_exists($link))
{
if (egw_vfs::readlink($link) === $path) continue; // no need to recreate identical link
egw_vfs::unlink($link); // symlink will fail, if $link exists
}
if (!egw_vfs::symlink($path, $link))
{
error_log(__METHOD__."('$app', $id, ...) failed to symlink($path, $link) --> ignored!");
}
continue;
}
if (!($to = self::fopen_attachment($app, $id, $filename=$attr['params']['FILENAME'], $attr['params']['FMTTYPE'], $path)) ||
// Horde Icalendar does NOT decode automatic
($copied=fwrite($to, $attr['params']['ENCODING'] == 'BASE64' ? base64_decode($attr['value']) : $attr['value'])) === false)
@ -1494,6 +1524,17 @@ class groupdav extends HTTP_WebDAV_Server
'need_mime' => true,
), true) as $path => $stat)
{
// handle symlinks --> return target size and mime-type
if (($target = readlink($path)))
{
if (!($stat = egw_vfs::stat($target))) continue; // broken or inaccessible symlink
// check if target is in /apps, probably reused MANAGED-ID --> return it
if (substr($target, 0, 6) == '/apps/')
{
$path = $target;
}
}
$attributes['ATTACH'][] = self::path2location($path);
$parameters['ATTACH'][] = array(
'MANAGED-ID' => groupdav::path2managed_id($path),