aboutsummaryrefslogtreecommitdiffstats
path: root/calendar/lib/SabreDAV/lib/OldSabre/CalDAV/ICSExportPlugin.php
diff options
context:
space:
mode:
Diffstat (limited to 'calendar/lib/SabreDAV/lib/OldSabre/CalDAV/ICSExportPlugin.php')
-rw-r--r--calendar/lib/SabreDAV/lib/OldSabre/CalDAV/ICSExportPlugin.php142
1 files changed, 142 insertions, 0 deletions
diff --git a/calendar/lib/SabreDAV/lib/OldSabre/CalDAV/ICSExportPlugin.php b/calendar/lib/SabreDAV/lib/OldSabre/CalDAV/ICSExportPlugin.php
new file mode 100644
index 0000000..4a5a75b
--- /dev/null
+++ b/calendar/lib/SabreDAV/lib/OldSabre/CalDAV/ICSExportPlugin.php
@@ -0,0 +1,142 @@
+<?php
+
+namespace OldSabre\CalDAV;
+
+use OldSabre\DAV;
+use OldSabre\VObject;
+
+/**
+ * ICS Exporter
+ *
+ * This plugin adds the ability to export entire calendars as .ics files.
+ * This is useful for clients that don't support CalDAV yet. They often do
+ * support ics files.
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ICSExportPlugin extends DAV\ServerPlugin {
+
+ /**
+ * Reference to Server class
+ *
+ * @var \OldSabre\DAV\Server
+ */
+ protected $server;
+
+ /**
+ * Initializes the plugin and registers event handlers
+ *
+ * @param \OldSabre\DAV\Server $server
+ * @return void
+ */
+ public function initialize(DAV\Server $server) {
+
+ $this->server = $server;
+ $this->server->subscribeEvent('beforeMethod',array($this,'beforeMethod'), 90);
+
+ }
+
+ /**
+ * 'beforeMethod' event handles. This event handles intercepts GET requests ending
+ * with ?export
+ *
+ * @param string $method
+ * @param string $uri
+ * @return bool
+ */
+ public function beforeMethod($method, $uri) {
+
+ if ($method!='GET') return;
+ if ($this->server->httpRequest->getQueryString()!='export') return;
+
+ // splitting uri
+ list($uri) = explode('?',$uri,2);
+
+ $node = $this->server->tree->getNodeForPath($uri);
+
+ if (!($node instanceof Calendar)) return;
+
+ // Checking ACL, if available.
+ if ($aclPlugin = $this->server->getPlugin('acl')) {
+ $aclPlugin->checkPrivileges($uri, '{DAV:}read');
+ }
+
+ $this->server->httpResponse->setHeader('Content-Type','text/calendar');
+ $this->server->httpResponse->sendStatus(200);
+
+ $nodes = $this->server->getPropertiesForPath($uri, array(
+ '{' . Plugin::NS_CALDAV . '}calendar-data',
+ ),1);
+
+ $this->server->httpResponse->sendBody($this->generateICS($nodes));
+
+ // Returning false to break the event chain
+ return false;
+
+ }
+
+ /**
+ * Merges all calendar objects, and builds one big ics export
+ *
+ * @param array $nodes
+ * @return string
+ */
+ public function generateICS(array $nodes) {
+
+ $calendar = new VObject\Component\VCalendar();
+ $calendar->version = '2.0';
+ if (DAV\Server::$exposeVersion) {
+ $calendar->prodid = '-//SabreDAV//SabreDAV ' . DAV\Version::VERSION . '//EN';
+ } else {
+ $calendar->prodid = '-//SabreDAV//SabreDAV//EN';
+ }
+ $calendar->calscale = 'GREGORIAN';
+
+ $collectedTimezones = array();
+
+ $timezones = array();
+ $objects = array();
+
+ foreach($nodes as $node) {
+
+ if (!isset($node[200]['{' . Plugin::NS_CALDAV . '}calendar-data'])) {
+ continue;
+ }
+ $nodeData = $node[200]['{' . Plugin::NS_CALDAV . '}calendar-data'];
+
+ $nodeComp = VObject\Reader::read($nodeData);
+
+ foreach($nodeComp->children() as $child) {
+
+ switch($child->name) {
+ case 'VEVENT' :
+ case 'VTODO' :
+ case 'VJOURNAL' :
+ $objects[] = $child;
+ break;
+
+ // VTIMEZONE is special, because we need to filter out the duplicates
+ case 'VTIMEZONE' :
+ // Naively just checking tzid.
+ if (in_array((string)$child->TZID, $collectedTimezones)) continue;
+
+ $timezones[] = $child;
+ $collectedTimezones[] = $child->TZID;
+ break;
+
+ }
+
+ }
+
+ }
+
+ foreach($timezones as $tz) $calendar->add($tz);
+ foreach($objects as $obj) $calendar->add($obj);
+
+ return $calendar->serialize();
+
+ }
+
+}

© 2014-2024 Faster IT GmbH | imprint | privacy policy