From b34cbded3aa465d8bb4bcbf4aef8459211c3675e Mon Sep 17 00:00:00 2001
From: Ralf Becker <ralfbecker@outdoor-training.de>
Date: Tue, 29 Sep 2015 07:37:15 +0000
Subject: [PATCH] multiple fixes around managed attachments and new
 Horde_Icalendar: - no longer decodes base64 automatic - size param have to be
 string due to bug in handling of integers in Horde_Icalendar - allow
 stripping of non-binary (eg. text/plain) inline attachments - only add
 X-EGROUPWARE-ATTACH-INCLUDED, if we have a real managed attachment - store
 external / url attachments as other unsupported attributes

---
 calendar/inc/class.calendar_ical.inc.php |  3 +++
 phpgwapi/inc/class.groupdav.inc.php      | 13 +++++++------
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/calendar/inc/class.calendar_ical.inc.php b/calendar/inc/class.calendar_ical.inc.php
index 052652cdb2..cb4ab1a13e 100644
--- a/calendar/inc/class.calendar_ical.inc.php
+++ b/calendar/inc/class.calendar_ical.inc.php
@@ -2978,6 +2978,9 @@ class calendar_ical extends calendar_boupdate
 				case 'X-LIC-ERROR':	// parse errors from libical, makes no sense to store them
 					break;
 
+				case 'ATTACH':
+					if ($attributes['params'] && !empty($attributes['params']['FMTTYPE'])) break;	// handeled by managed attachment code
+					// fall throught to store external attachment url
 				default:	// X- attribute or other by EGroupware unsupported property
 					//error_log(__METHOD__."() $attributes[name] = ".array2string($attributes));
 					// for attributes with multiple values in multiple lines, merge the values
diff --git a/phpgwapi/inc/class.groupdav.inc.php b/phpgwapi/inc/class.groupdav.inc.php
index 519535a117..84c2040672 100644
--- a/phpgwapi/inc/class.groupdav.inc.php
+++ b/phpgwapi/inc/class.groupdav.inc.php
@@ -1382,10 +1382,11 @@ class groupdav extends HTTP_WebDAV_Server
 		// turn inline attachments into managed ones
 		foreach($attach as $key => $attr)
 		{
-			if ($attr['params']['VALUE'] === 'BINARY')
+			if (!empty($attr['params']['FMTTYPE']))
 			{
 				if (!($to = self::fopen_attachment($app, $id, $filename=$attr['params']['FILENAME'], $attr['params']['FMTTYPE'], $path)) ||
-					($copied=fwrite($to, $attr['value'])) === false)
+					// Horde Icalendar does NOT decode automatic
+					($copied=fwrite($to, $attr['params']['ENCODING'] == 'BASE64' ? base64_decode($attr['value']) : $attr['value'])) === false)
 				{
 					error_log(__METHOD__."('$app', $id, ...) failed to add attachment ".array2string($attr).") ");
 					continue;
@@ -1484,13 +1485,13 @@ class groupdav extends HTTP_WebDAV_Server
 			$parameters['ATTACH'][] = array(
 				'MANAGED-ID' => groupdav::path2managed_id($path),
 				'FMTTYPE'    => $stat['mime'],
-				'SIZE'       => $stat['size'],
+				'SIZE'       => (string)$stat['size'],	// Horde_Icalendar renders int as empty string
 				'FILENAME'   => egw_vfs::basename($path),
 			);
+			// if we have attachments, set X-attribute to enable deleting them by put
+			// (works around events synced before without ATTACH attributes)
+			$attributes['X-EGROUPWARE-ATTACH-INCLUDED'] = 'TRUE';
 		}
-		// if we have attachments, set X-attribute to enable deleting them by put
-		// (works around events synced before without ATTACH attributes)
-		if ($attributes['ATTACH']) $attributes['X-EGROUPWARE-ATTACH-INCLUDED'] = 'TRUE';
 	}
 
 	/**