alchemycs/blogFeed.php

## blogFeed.php
<?php
/*
 * This class pulls and caches a blog feed from a remote site and displays the content locally.
 *
 */

/**
 * @author Michael McHugh
 * @version 1.0 2009-10-14 - Initial code
 * @version 2.0 2011-06-22 - Updated to allow 0-indexed article offset and standalone display
 *
 * xmlns:content="http://purl.org/rss/1.0/modules/content/"
 *
 */
if (!class_exists('BlogFeed')) {
	class BlogFeed {

		protected $feedXML = null;
		protected $liveSource = null;
		protected $ttl = 600; //10 minutes = 600 seconds

		public function __construct($feedPath, $liveSource) {
			if (!file_exists($feedPath)) {
				$this->downloadFeed($feedPath, $liveSource);
			} else {
				if (time()-filemtime($feedPath)>$this->ttl) {
					$this->downloadFeed($feedPath, $liveSource);
				}
			}
			if (!is_file($feedPath) || !is_readable($feedPath)) {
				throw new Exception('Feed path specified is not a file or is not readable.');
			}

			$this->feedXML = @simplexml_load_file($feedPath);
			if ($this->feedXML===false) {
				throw new Exception('Unable to parse file');
			}
		}

		public function downloadFeed($feedPath, $liveSource) {
			return @copy($liveSource, $feedPath);
		}

		public function getTitle($index=0) {
			return $this->feedXML->channel->item[$index]->title;
		}

		public function getDescription($index=0) {
			return $this->feedXML->channel->item[$index]->description;
		}

                public function getEncoded($index=0) {
                    $children = $this->feedXML->channel->item[$index]->children('http://purl.org/rss/1.0/modules/content/');
                    $encoded = $children->encoded;
                    return $encoded;
                }

		public function getLink($index=0) {
			return $this->feedXML->channel->item[$index]->link;
		}

                public function count() {
                    return count($this->feedXML->channel->item);
                }

		public function showArticle($index=0) {
			?>
			<h2><?=$this->getTitle($index);?></h2>
			<p>
				<?=$this->getDescription($index);?>
				<?=$this->getEncoded($index);?>
				<a href="<?=$this->getLink($index);?>">more &raquo</a>
			</p>
			<?
		}
	}
}
?>
<!DOCTYPE html>
<html>
	<head>
	<meta charset="utf8"/>
	<title>CompliSpace Blog Feed</title>
	</head>
	<body>
		<h1>CompliSpace Blog Feed</h1>
<?php
try {
	$feed = new BlogFeed('/tmp/CompliSpaceBlog.xml', 'http://complispace.wordpress.com/feed/');
        for ($index = 0; $index < $feed->count(); $index++) {
            $feed->showArticle($index);
        }
} catch (Exception $e) {
	printf("Feed not available at this time.\n<!-- Blog Feed:\n %s\n -->\n", $e->getMessage());
}
?>
	</body>
</html>
	<?php
	/*
	* This class pulls and caches a blog feed from a remote site and displays the content locally.
	*
	*/

	/**
	* @author Michael McHugh
	* @version 1.0 2009-10-14 - Initial code
	* @version 2.0 2011-06-22 - Updated to allow 0-indexed article offset and standalone display
	*
	* xmlns:content="http://purl.org/rss/1.0/modules/content/"
	*
	*/
	if (!class_exists('BlogFeed')) {
	class BlogFeed {

	protected $feedXML = null;
	protected $liveSource = null;
	protected $ttl = 600; //10 minutes = 600 seconds

	public function __construct($feedPath, $liveSource) {
	if (!file_exists($feedPath)) {
	$this->downloadFeed($feedPath, $liveSource);
	} else {
	if (time()-filemtime($feedPath)>$this->ttl) {
	$this->downloadFeed($feedPath, $liveSource);
	}
	}
	if (!is_file($feedPath) \|\| !is_readable($feedPath)) {
	throw new Exception('Feed path specified is not a file or is not readable.');
	}

	$this->feedXML = @simplexml_load_file($feedPath);
	if ($this->feedXML===false) {
	throw new Exception('Unable to parse file');
	}
	}

	public function downloadFeed($feedPath, $liveSource) {
	return @copy($liveSource, $feedPath);
	}

	public function getTitle($index=0) {
	return $this->feedXML->channel->item[$index]->title;
	}

	public function getDescription($index=0) {
	return $this->feedXML->channel->item[$index]->description;
	}

	public function getEncoded($index=0) {
	$children = $this->feedXML->channel->item[$index]->children('http://purl.org/rss/1.0/modules/content/');
	$encoded = $children->encoded;
	return $encoded;
	}

	public function getLink($index=0) {
	return $this->feedXML->channel->item[$index]->link;
	}

	public function count() {
	return count($this->feedXML->channel->item);
	}

	public function showArticle($index=0) {
	?>
	<h2><?=$this->getTitle($index);?></h2>
	<p>
	<?=$this->getDescription($index);?>
	<?=$this->getEncoded($index);?>
	<a href="<?=$this->getLink($index);?>">more &raquo</a>
	</p>
	<?
	}
	}
	}
	?>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf8"/>
	<title>CompliSpace Blog Feed</title>
	</head>
	<body>
	<h1>CompliSpace Blog Feed</h1>
	<?php
	try {
	$feed = new BlogFeed('/tmp/CompliSpaceBlog.xml', 'http://complispace.wordpress.com/feed/');
	for ($index = 0; $index < $feed->count(); $index++) {
	$feed->showArticle($index);
	}
	} catch (Exception $e) {
	printf("Feed not available at this time.\n<!-- Blog Feed:\n %s\n -->\n", $e->getMessage());
	}
	?>
	</body>
	</html>