3 +--------------------------------------------------------------------+
4 | CiviCRM version 4.5 |
5 +--------------------------------------------------------------------+
6 | Copyright CiviCRM LLC (c) 2004-2014 |
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8 | This file is a part of CiviCRM. |
10 | CiviCRM is free software; you can copy, modify, and distribute it |
11 | under the terms of the GNU Affero General Public License |
12 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
14 | CiviCRM is distributed in the hope that it will be useful, but |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
17 | See the GNU Affero General Public License for more details. |
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20 | License and the CiviCRM Licensing Exception along |
21 | with this program; if not, contact CiviCRM LLC |
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24 | see the CiviCRM license FAQ at http://civicrm.org/licensing |
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31 * @copyright CiviCRM LLC (c) 2004-2014
38 * API for event export in iCalendar format
39 * as outlined in Internet Calendaring and
40 * Scheduling Core Object Specification
43 class CRM_Utils_ICalendar
{
46 * Escape text elements for safe ICalendar use
48 * @param $text Text to escape
50 * @return Escaped text
53 static function formatText($text) {
54 $text = strip_tags($text);
55 $text = str_replace("\"", "DQUOTE", $text);
56 $text = str_replace("\\", "\\\\", $text);
57 $text = str_replace(",", "\,", $text);
58 $text = str_replace(";", "\;", $text);
59 $text = str_replace(array("\r\n", "\n", "\r"), "\\n ", $text);
60 $text = implode("\n ", str_split($text, 50));
65 * Escape date elements for safe ICalendar use
67 * @param $date Date to escape
71 * @return Escaped date
73 static function formatDate($date, $gdata = FALSE) {
76 return date("Y-m-d\TH:i:s.000",
81 return date("Ymd\THis",
89 * Send the ICalendar to the browser with the specified content type
90 * - 'text/calendar' : used for downloaded ics file
91 * - 'text/plain' : used for iCal formatted feed
92 * - 'text/xml' : used for gData or rss formatted feeds
96 * @param string $calendar The calendar data to be published.
98 * @param string $content_type
100 * @param string $charset The character set to use, defaults to
103 * @param null $fileName
104 * @param string $disposition How the file should be sent ('attachment' for downloads)
106 * @internal param string $filename The file name (for downloads)
110 static function send($calendar, $content_type = 'text/calendar', $charset = 'us-ascii', $fileName = NULL, $disposition = NULL) {
111 $config = CRM_Core_Config
::singleton();
112 $lang = $config->lcMessages
;
113 header("Content-Language: $lang");
114 // header( "Content-Type: $content_type; charset=$charset; profile=\"ICalendar\"" );
115 header("Content-Type: $content_type; charset=$charset");
117 if ($content_type == 'text/calendar') {
118 header('Content-Length: ' . strlen($calendar));
119 header("Content-Disposition: $disposition; filename=\"$fileName\"");
120 header("Pragma: no-cache");
121 header("Expires: 0");
122 header("Cache-Control: no-cache, must-revalidate");