1 files changed, 114 insertions, 21 deletions

diff --git a/lib/simplepie/library/SimplePie.php b/lib/simplepie/library/SimplePie.php
index 78e724525..2ae78c359 100755
--- a/lib/simplepie/library/SimplePie.php
+++ b/lib/simplepie/library/SimplePie.php
@@ -5,7 +5,7 @@
  * A PHP-Based RSS and Atom Feed Framework.
  * Takes the hard work out of managing a complete RSS/Atom solution.
  *
- * Copyright (c) 2004-2017, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
+ * Copyright (c) 2004-2017, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification, are
@@ -33,10 +33,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  *
  * @package SimplePie
- * @version 1.5.2
- * @copyright 2004-2017 Ryan Parman, Geoffrey Sneddon, Ryan McCue
+ * @version 1.6.0
+ * @copyright 2004-2017 Ryan Parman, Sam Sneddon, Ryan McCue
  * @author Ryan Parman
- * @author Geoffrey Sneddon
+ * @author Sam Sneddon
  * @author Ryan McCue
  * @link http://simplepie.org/ SimplePie
  * @license http://www.opensource.org/licenses/bsd-license.php BSD License
@@ -50,7 +50,7 @@ define('SIMPLEPIE_NAME', 'SimplePie');
 /**
  * SimplePie Version
  */
-define('SIMPLEPIE_VERSION', '1.5.2');
+define('SIMPLEPIE_VERSION', '1.6.0');
 
 /**
  * SimplePie Build
@@ -425,6 +425,13 @@ class SimplePie
 	public $error;
 
 	/**
+	 * @var int HTTP status code
+	 * @see SimplePie::status_code()
+	 * @access private
+	 */
+	public $status_code;
+
+	/**
 	 * @var object Instance of SimplePie_Sanitize (or other class)
 	 * @see SimplePie::set_sanitize_class()
 	 * @access private
@@ -644,6 +651,13 @@ class SimplePie
 	public $strip_htmltags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style');
 
 	/**
+	 * @var array Stores the default attributes to be renamed by rename_attributes().
+	 * @see SimplePie::rename_attributes()
+	 * @access private
+	 */
+	public $rename_attributes = array();
+
+	/**
 	 * @var bool Should we throw exceptions, or use the old-style error property?
 	 * @access private
 	 */
@@ -665,9 +679,9 @@ class SimplePie
 	 */
 	public function __construct()
 	{
-		if (version_compare(PHP_VERSION, '5.3', '<'))
+		if (version_compare(PHP_VERSION, '5.6', '<'))
 		{
-			trigger_error('Please upgrade to PHP 5.3 or newer.');
+			trigger_error('Please upgrade to PHP 5.6 or newer.');
 			die();
 		}
 
@@ -706,7 +720,7 @@ class SimplePie
 	 */
 	public function __destruct()
 	{
-		if ((version_compare(PHP_VERSION, '5.3', '<') || !gc_enabled()) && !ini_get('zend.ze1_compatibility_mode'))
+		if (!gc_enabled())
 		{
 			if (!empty($this->data['items']))
 			{
@@ -909,6 +923,39 @@ class SimplePie
 	}
 
 	/**
+	 * Return the filename (i.e. hash, without path and without extension) of the file to cache a given URL.
+	 * @param string $url The URL of the feed to be cached.
+	 * @return string A filename (i.e. hash, without path and without extension).
+	 */
+	public function get_cache_filename($url)
+	{
+		// Append custom parameters to the URL to avoid cache pollution in case of multiple calls with different parameters.
+		$url .= $this->force_feed ? '#force_feed' : '';
+		$options = array();
+		if ($this->timeout != 10)
+		{
+			$options[CURLOPT_TIMEOUT] = $this->timeout;
+		}
+		if ($this->useragent !== SIMPLEPIE_USERAGENT)
+		{
+			$options[CURLOPT_USERAGENT] = $this->useragent;
+		}
+		if (!empty($this->curl_options))
+		{
+			foreach ($this->curl_options as $k => $v)
+			{
+				$options[$k] = $v;
+			}
+		}
+		if (!empty($options))
+		{
+			ksort($options);
+			$url .= '#' . urlencode(var_export($options, true));
+		}
+		return call_user_func($this->cache_name_function, $url);
+	}
+
+	/**
 	 * Set whether feed items should be sorted into reverse chronological order
 	 *
 	 * @param bool $enable Sort as reverse chronological order.
@@ -1146,6 +1193,7 @@ class SimplePie
 			$this->strip_attributes(false);
 			$this->add_attributes(false);
 			$this->set_image_handler(false);
+			$this->set_https_domains(array());
 		}
 	}
 
@@ -1182,6 +1230,15 @@ class SimplePie
 		$this->sanitize->encode_instead_of_strip($enable);
 	}
 
+	public function rename_attributes($attribs = '')
+	{
+		if ($attribs === '')
+		{
+			$attribs = $this->rename_attributes;
+		}
+		$this->sanitize->rename_attributes($attribs);
+	}
+
 	public function strip_attributes($attribs = '')
 	{
 		if ($attribs === '')
@@ -1249,10 +1306,23 @@ class SimplePie
 	}
 
 	/**
+	 * Set the list of domains for which to force HTTPS.
+	 * @see SimplePie_Sanitize::set_https_domains()
+	 * @param array List of HTTPS domains. Example array('biz', 'example.com', 'example.org', 'www.example.net').
+	 */
+	public function set_https_domains($domains = array())
+	{
+		if (is_array($domains))
+		{
+			$this->sanitize->set_https_domains($domains);
+		}
+	}
+
+	/**
 	 * Set the handler to enable the display of cached images.
 	 *
-	 * @param str $page Web-accessible path to the handler_image.php file.
-	 * @param str $qs The query string that the value should be passed to.
+	 * @param string $page Web-accessible path to the handler_image.php file.
+	 * @param string $qs The query string that the value should be passed to.
 	 */
 	public function set_image_handler($page = false, $qs = 'i')
 	{
@@ -1373,7 +1443,8 @@ class SimplePie
 			// Decide whether to enable caching
 			if ($this->cache && $parsed_feed_url['scheme'] !== '')
 			{
-				$cache = $this->registry->call('Cache', 'get_handler', array($this->cache_location, call_user_func($this->cache_name_function, $this->feed_url), 'spc'));
+				$filename = $this->get_cache_filename($this->feed_url);
+				$cache = $this->registry->call('Cache', 'get_handler', array($this->cache_location, $filename, 'spc'));
 			}
 
 			// Fetch the data via SimplePie_File into $this->raw_data
@@ -1513,7 +1584,7 @@ class SimplePie
 	 * Fetch the data via SimplePie_File
 	 *
 	 * If the data is already cached, attempt to fetch it from there instead
-	 * @param SimplePie_Cache|false $cache Cache handler, or false to not load from the cache
+	 * @param SimplePie_Cache_Base|false $cache Cache handler, or false to not load from the cache
 	 * @return array|true Returns true if the data was loaded from the cache, or an array of HTTP headers and sniffed type
 	 */
 	protected function fetch_data(&$cache)
@@ -1576,6 +1647,7 @@ class SimplePie
 						}
 
 						$file = $this->registry->create('File', array($this->feed_url, $this->timeout/10, 5, $headers, $this->useragent, $this->force_fsockopen, $this->curl_options));
+						$this->status_code = $file->status_code;
 
 						if ($file->success)
 						{
@@ -1630,6 +1702,8 @@ class SimplePie
 				$file = $this->registry->create('File', array($this->feed_url, $this->timeout, 5, $headers, $this->useragent, $this->force_fsockopen, $this->curl_options));
 			}
 		}
+		$this->status_code = $file->status_code;
+
 		// If the file connection has an error, set SimplePie::error to that and quit
 		if (!$file->success && !($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300)))
 		{
@@ -1712,8 +1786,8 @@ class SimplePie
 					}
 					$cache = $this->registry->call('Cache', 'get_handler', array($this->cache_location, call_user_func($this->cache_name_function, $file->url), 'spc'));
 				}
-				$this->feed_url = $file->url;
 			}
+			$this->feed_url = $file->url;
 			$locate = null;
 		}
 
@@ -1727,7 +1801,7 @@ class SimplePie
 	}
 
 	/**
-	 * Get the error message for the occured error
+	 * Get the error message for the occurred error
 	 *
 	 * @return string|array Error message, or array of messages for multifeeds
 	 */
@@ -1737,6 +1811,16 @@ class SimplePie
 	}
 
 	/**
+	 * Get the last HTTP status code
+	 *
+	 * @return int Status code
+	 */
+	public function status_code()
+	{
+		return $this->status_code;
+	}
+
+	/**
 	 * Get the raw XML
 	 *
 	 * This is the same as the old `$feed->enable_xml_dump(true)`, but returns
@@ -1911,7 +1995,8 @@ class SimplePie
 	 *
 	 * When the 'permanent' mode is disabled (default),
 	 * may or may not be different from the URL passed to {@see set_feed_url()},
-	 * depending on whether auto-discovery was used.
+	 * depending on whether auto-discovery was used, and whether there were
+	 * any redirects along the way.
 	 *
 	 * @since Preview Release (previously called `get_feed_url()` since SimplePie 0.8.)
 	 * @todo Support <itunes:new-feed-url>
@@ -2130,7 +2215,7 @@ class SimplePie
 	 */
 	public function get_base($element = array())
 	{
-		if (!($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION) && !empty($element['xml_base_explicit']) && isset($element['xml_base']))
+		if (!empty($element['xml_base_explicit']) && isset($element['xml_base']))
 		{
 			return $element['xml_base'];
 		}
@@ -2578,13 +2663,19 @@ class SimplePie
 			}
 		}
 
-		if (isset($this->data['headers']['link']) &&
-		    preg_match('/<([^>]+)>; rel='.preg_quote($rel).'/',
-		               $this->data['headers']['link'], $match))
+		if (isset($this->data['headers']['link']))
 		{
-			return array($match[1]);
+			$link_headers = $this->data['headers']['link'];
+			if (is_string($link_headers)) {
+				$link_headers = array($link_headers);
+			}
+			$matches = preg_filter('/<([^>]+)>; rel='.preg_quote($rel).'/', '$1', $link_headers);
+			if (!empty($matches)) {
+				return $matches;
+			}
 		}
-		else if (isset($this->data['links'][$rel]))
+
+		if (isset($this->data['links'][$rel]))
 		{
 			return $this->data['links'][$rel];
 		}
@@ -3241,3 +3332,5 @@ class SimplePie
 		}
 	}
 }
+
+class_alias('SimplePie', 'SimplePie\SimplePie', false);