Fix holidays in calendar sitemgr modules by adding access via holidays.php.

This lets the anonymous user get the holiday list without triggering a permission error.

calendar/inc/holidays.php

@@ -0,0 +1,53 @@
+<?php
+/**
+ * Load holidays from server
+ *
+ * Called from calendar_view widget to get cachable holiday list.
+ * It's broken out into a separate file to get around anonymous user not having
+ * calendar run rights in sitemgr.
+ *
+ * @link www.egroupware.org
+ * @author Nathan Gray
+ * @package calendar
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @version $Id$
+ */
+
+use EGroupware\Api;
+
+// switch evtl. set output-compression off, as we cant calculate a Content-Length header with transparent compression
+ini_set('zlib.output_compression', 0);
+
+$GLOBALS['egw_info'] = array(
+	'flags' => array(
+		'currentapp' => 'api',
+		'noheader' => true,
+		'nocachecontrol' => true,
+	)
+);
+
+include '../../header.inc.php';
+
+$GLOBALS['egw_info']['flags']['currentapp'] = 'calendar';
+
+$cal_bo = new calendar_bo();
+$holidays = json_encode($cal_bo->read_holidays((int)$_GET['year']));
+
+// use an etag over holidays
+$etag = '"'.md5($holidays).'"';
+
+// headers to allow caching, egw_framework specifies etag on url to force reload, even with Expires header
+Api\Session::cache_control(86400);	// cache for one day
+Header('Content-Type: application/json; charset=utf-8');
+Header('ETag: '.$etag);
+
+// if servers send a If-None-Match header, response with 304 Not Modified, if etag matches
+if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] == $etag)
+{
+	header("HTTP/1.1 304 Not Modified");
+	exit;
+}
+
+// Content-Lenght header is important, otherwise browsers dont cache!
+Header('Content-Length: '.bytes($holidays));
+echo $holidays;

calendar/js/et2_widget_view.js

@@ -619,25 +619,25 @@ jQuery.extend(et2_calendar_view,
 	get_holidays: function(widget,year)
 	{
 		// Loaded in an iframe or something
-		if(!egw.window.et2_calendar_view) return {};
+		var view = egw.window.et2_calendar_view ? egw.window.et2_calendar_view : this;
+		if(!view) return {};
 
-		var cache = egw.window.et2_calendar_view.holiday_cache[year];
+		var cache = view.holiday_cache[year];
 		if (typeof cache == 'undefined')
 		{
 			// Fetch with json instead of jsonq because there may be more than
 			// one widget listening for the response by the time it gets back,
 			// and we can't do that when it's queued.
-			egw.window.et2_calendar_view.holiday_cache[year] = egw.json(
+			view.holiday_cache[year] = jQuery.getJSON(
-				'calendar_timegrid_etemplate_widget::ajax_get_holidays',
+				egw.link('/calendar/inc/holidays.php', {year: year})
-				[year]
+			);
-			).sendRequest(true);
 		}
-		cache = egw.window.et2_calendar_view.holiday_cache[year];
+		cache = view.holiday_cache[year];
 		if(typeof cache.done == 'function')
 		{
 			// pending, wait for it
 			cache.done(jQuery.proxy(function(response) {
-				egw.window.et2_calendar_view.holiday_cache[this.year] = response.response[0].data||undefined;
+				view.holiday_cache[this.year] = response||undefined;
 
 				egw.window.setTimeout(jQuery.proxy(function() {
 					// Make sure widget hasn't been destroyed while we wait