pnp4nagios/lib/kohana/system/helpers/feed.php

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2017-05-20 15:26:21 +02:00
<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Feed helper class.
*
* $Id: feed.php 4152 2009-04-03 23:26:23Z ixmatus $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class feed_Core {
/**
* Parses a remote feed into an array.
*
* @param string remote feed URL
* @param integer item limit to fetch
* @return array
*/
public static function parse($feed, $limit = 0)
{
// Check if SimpleXML is installed
if( ! function_exists('simplexml_load_file'))
throw new Kohana_User_Exception('Feed Error', 'SimpleXML must be installed!');
// Make limit an integer
$limit = (int) $limit;
// Disable error reporting while opening the feed
$ER = error_reporting(0);
// Allow loading by filename or raw XML string
$load = (is_file($feed) OR valid::url($feed)) ? 'simplexml_load_file' : 'simplexml_load_string';
// Load the feed
$feed = $load($feed, 'SimpleXMLElement', LIBXML_NOCDATA);
// Restore error reporting
error_reporting($ER);
// Feed could not be loaded
if ($feed === FALSE)
return array();
// Detect the feed type. RSS 1.0/2.0 and Atom 1.0 are supported.
$feed = isset($feed->channel) ? $feed->xpath('//item') : $feed->entry;
$i = 0;
$items = array();
foreach ($feed as $item)
{
if ($limit > 0 AND $i++ === $limit)
break;
$items[] = (array) $item;
}
return $items;
}
/**
* Creates a feed from the given parameters.
*
* @param array feed information
* @param array items to add to the feed
* @param string define which format to use
* @param string define which encoding to use
* @return string
*/
public static function create($info, $items, $format = 'rss2', $encoding = 'UTF-8')
{
$info += array('title' => 'Generated Feed', 'link' => '', 'generator' => 'KohanaPHP');
$feed = '<?xml version="1.0" encoding="'.$encoding.'"?><rss version="2.0"><channel></channel></rss>';
$feed = simplexml_load_string($feed);
foreach ($info as $name => $value)
{
if (($name === 'pubDate' OR $name === 'lastBuildDate') AND (is_int($value) OR ctype_digit($value)))
{
// Convert timestamps to RFC 822 formatted dates
$value = date(DATE_RFC822, $value);
}
elseif (($name === 'link' OR $name === 'docs') AND strpos($value, '://') === FALSE)
{
// Convert URIs to URLs
$value = url::site($value, 'http');
}
// Add the info to the channel
$feed->channel->addChild($name, $value);
}
foreach ($items as $item)
{
// Add the item to the channel
$row = $feed->channel->addChild('item');
foreach ($item as $name => $value)
{
if ($name === 'pubDate' AND (is_int($value) OR ctype_digit($value)))
{
// Convert timestamps to RFC 822 formatted dates
$value = date(DATE_RFC822, $value);
}
elseif (($name === 'link' OR $name === 'guid') AND strpos($value, '://') === FALSE)
{
// Convert URIs to URLs
$value = url::site($value, 'http');
}
// Add the info to the row
$row->addChild($name, $value);
}
}
return $feed->asXML();
}
} // End feed