3 +--------------------------------------------------------------------+
4 | CiviCRM version 4.3 |
5 +--------------------------------------------------------------------+
6 | Copyright CiviCRM LLC (c) 2004-2013 |
7 +--------------------------------------------------------------------+
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. |
19 | You should have received a copy of the GNU Affero General Public |
20 | License and the CiviCRM Licensing Exception along |
21 | with this program; if not, contact CiviCRM LLC |
22 | at info[AT]civicrm[DOT]org. If you have questions about the |
23 | GNU Affero General Public License or the licensing of CiviCRM, |
24 | see the CiviCRM license FAQ at http://civicrm.org/licensing |
25 +--------------------------------------------------------------------+
31 * @copyright CiviCRM LLC (c) 2004-2013
37 * Main page for blog dashlet
39 class CRM_Dashlet_Page_Blog
extends CRM_Core_Page
{
41 const CHECK_TIMEOUT
= 5;
43 const BLOG_URL
= 'https://civicrm.org/blog/feed';
46 * List blog articles as dashlet
51 $context = CRM_Utils_Request
::retrieve('context', 'String', $this, FALSE, 'dashlet');
52 $this->assign('context', $context);
54 $this->assign('blog', $this->_getBlog());
60 * Load blog articles from cache
61 * Refresh cache if expired
67 private function _getBlog() {
68 // Fetch data from cache
69 $cache = CRM_Core_DAO
::executeQuery("SELECT data, created_date FROM civicrm_cache
70 WHERE group_name = 'dashboard' AND path = 'blog'");
71 if ($cache->fetch()) {
72 $expire = time() - (60 * 60 * 24 * self
::CACHE_DAYS
);
73 // Refresh data after CACHE_DAYS
74 if (strtotime($cache->created_date
) < $expire) {
75 $new_data = $this->_getFeed();
76 // If fetching the new rss feed was successful, return it
77 // Otherwise use the old cached data - it's better than nothing
82 return unserialize($cache->data
);
84 return $this->_getFeed();
88 * Parse rss feed and cache results
90 * @return array|NULL array of blog items; or NULL if not available
94 private function _getFeed() {
95 $httpClient = new CRM_Utils_HttpClient(self
::CHECK_TIMEOUT
);
96 list ($status, $rawFeed) = $httpClient->get(self
::BLOG_URL
);
97 if ($status !== CRM_Utils_HttpClient
::STATUS_OK
) {
100 $feed = @simplexml_load_string
($rawFeed);
103 if ($feed && !empty($feed->channel
->item
)) {
104 foreach ($feed->channel
->item
as $item) {
105 $item = (array) $item;
106 // Clean up description - remove tags that would break dashboard layout
107 $description = preg_replace('#<h[1-3][^>]*>(.+?)</h[1-3][^>]*>#s', '<h4>$1</h4>', $item['description']);
108 $item['description'] = strip_tags($description, "<a><p><h4><h5><h6><b><i><em><strong><ol><ul><li><dd><dt><code><pre><br>");
112 CRM_Core_BAO_Cache
::setItem($blog, 'dashboard', 'blog');