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<?php
/**
* @package Horde
*/
class Horde_Block_Feed extends Horde_Core_Block
{
/**
*/
private $_feed = null;
/**
*/
public function __construct($app, $params = array())
{
parent::__construct($app, $params);
$this->enabled = class_exists('Horde_Feed');
$this->_name = _("Syndicated Feed");
}
/**
*/
protected function _params()
{
return array(
'uri' => array(
'type' => 'text',
'name' => _("Feed Address")
),
'limit' => array(
'name' => _("Number of articles to display"),
'type' => 'int',
'default' => 10
),
'interval' => array(
'name' => _("How many seconds before we check for new articles?"),
'type' => 'int',
'default' => 86400
),
'details' => array(
'name' => _("Show extra detail?"),
'type' => 'boolean',
'default' => 20
)
);
}
/**
*/
protected function _title()
{
$this->_read();
return ($this->_feed instanceof Horde_Feed_Base)
? $this->_feed->title()
: _("Feed");
}
/**
*/
protected function _content()
{
$this->_read();
if ($this->_feed instanceof Horde_Feed_Base) {
$html = '';
$count = 0;
foreach ($this->_feed as $entry) {
if (++$count > $this->_params['limit']) {
break;
}
$html .= '<a href="' . $entry->link. '"';
if (empty($this->_params['details'])) {
$html .= ' title="' . htmlspecialchars(strip_tags($entry->description())) . '"';
}
$html .= '>' . htmlspecialchars($entry->title) . '</a>';
if (!empty($this->_params['details'])) {
$html .= '<br />' . htmlspecialchars(strip_tags($entry->description())). "<br />\n";
}
$html .= '<br />';
}
return $html;
}
return is_string($this->_feed)
? $this->_feed
: '';
}
/**
*/
private function _read()
{
if (empty($this->_params['uri'])) {
return;
}
$key = md5($this->_params['uri']);
$cache = $GLOBALS['injector']->getInstance('Horde_Cache');
$feed = $cache->get($key, $this->_params['interval']);
if (!empty($feed)) {
$this->_feed = unserialize($feed);
}
try {
$client = $GLOBALS['injector']
->getInstance('Horde_Core_Factory_HttpClient')
->create();
$feed = Horde_Feed::readUri($this->_params['uri'], $client);
$cache->set($key, serialize($feed));
$this->_feed = $feed;
} catch (Exception $e) {
$this->_feed = $e->getMessage();
}
}
}
|
