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WordPress/wp-includes/class-simplepie.php
audrasjb 28358ab213 HTTP API: Fix request header inconsistencies. 
This changeset improves the consistency in capitalization of fetching and outputting of request headers. It also updates occurrences found in some docblocks.

Props johnjamesjacoby, costdev, audrasjb, petitphp, mhkuu, SergeyBiryukov.
Fixes #54225.

Built from https://develop.svn.wordpress.org/trunk@55210


git-svn-id: http://core.svn.wordpress.org/trunk@54743 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-02-03 13:35:20 +00:00

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<?php
if ( ! class_exists( 'SimplePie', false ) ) :
// Load classes we will need.
require ABSPATH . WPINC . '/SimplePie/Misc.php';
require ABSPATH . WPINC . '/SimplePie/Cache.php';
require ABSPATH . WPINC . '/SimplePie/File.php';
require ABSPATH . WPINC . '/SimplePie/Sanitize.php';
require ABSPATH . WPINC . '/SimplePie/Registry.php';
require ABSPATH . WPINC . '/SimplePie/IRI.php';
require ABSPATH . WPINC . '/SimplePie/Locator.php';
require ABSPATH . WPINC . '/SimplePie/Content/Type/Sniffer.php';
require ABSPATH . WPINC . '/SimplePie/XML/Declaration/Parser.php';
require ABSPATH . WPINC . '/SimplePie/Parser.php';
require ABSPATH . WPINC . '/SimplePie/Item.php';
require ABSPATH . WPINC . '/SimplePie/Parse/Date.php';
require ABSPATH . WPINC . '/SimplePie/Author.php';
/**
* WordPress autoloader for SimplePie.
*
* @since 3.5.0
*/
function wp_simplepie_autoload( $class ) {
if ( 0 !== strpos( $class, 'SimplePie_' ) )
return;
$file = ABSPATH . WPINC . '/' . str_replace( '_', '/', $class ) . '.php';
include $file;
}
/**
* We autoload classes we may not need.
*/
spl_autoload_register( 'wp_simplepie_autoload' );
/**
* SimplePie
*
* 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, Sam Sneddon, Ryan McCue, and contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of the SimplePie Team nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package SimplePie
* @version 1.5.8
* @copyright 2004-2017 Ryan Parman, Sam Sneddon, Ryan McCue
* @author Ryan Parman
* @author Sam Sneddon
* @author Ryan McCue
* @link http://simplepie.org/ SimplePie
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
*/
/**
* SimplePie Name
*/
define('SIMPLEPIE_NAME', 'SimplePie');
/**
* SimplePie Version
*/
define('SIMPLEPIE_VERSION', '1.5.8');
/**
* SimplePie Build
* @todo Hardcode for release (there's no need to have to call SimplePie_Misc::get_build() only every load of simplepie.inc)
*/
define('SIMPLEPIE_BUILD', gmdate('YmdHis', SimplePie_Misc::get_build()));
/**
* SimplePie Website URL
*/
define('SIMPLEPIE_URL', 'http://simplepie.org');
/**
* SimplePie Useragent
* @see SimplePie::set_useragent()
*/
define('SIMPLEPIE_USERAGENT', SIMPLEPIE_NAME . '/' . SIMPLEPIE_VERSION . ' (Feed Parser; ' . SIMPLEPIE_URL . '; Allow like Gecko) Build/' . SIMPLEPIE_BUILD);
/**
* SimplePie Linkback
*/
define('SIMPLEPIE_LINKBACK', '<a href="' . SIMPLEPIE_URL . '" title="' . SIMPLEPIE_NAME . ' ' . SIMPLEPIE_VERSION . '">' . SIMPLEPIE_NAME . '</a>');
/**
* No Autodiscovery
* @see SimplePie::set_autodiscovery_level()
*/
define('SIMPLEPIE_LOCATOR_NONE', 0);
/**
* Feed Link Element Autodiscovery
* @see SimplePie::set_autodiscovery_level()
*/
define('SIMPLEPIE_LOCATOR_AUTODISCOVERY', 1);
/**
* Local Feed Extension Autodiscovery
* @see SimplePie::set_autodiscovery_level()
*/
define('SIMPLEPIE_LOCATOR_LOCAL_EXTENSION', 2);
/**
* Local Feed Body Autodiscovery
* @see SimplePie::set_autodiscovery_level()
*/
define('SIMPLEPIE_LOCATOR_LOCAL_BODY', 4);
/**
* Remote Feed Extension Autodiscovery
* @see SimplePie::set_autodiscovery_level()
*/
define('SIMPLEPIE_LOCATOR_REMOTE_EXTENSION', 8);
/**
* Remote Feed Body Autodiscovery
* @see SimplePie::set_autodiscovery_level()
*/
define('SIMPLEPIE_LOCATOR_REMOTE_BODY', 16);
/**
* All Feed Autodiscovery
* @see SimplePie::set_autodiscovery_level()
*/
define('SIMPLEPIE_LOCATOR_ALL', 31);
/**
* No known feed type
*/
define('SIMPLEPIE_TYPE_NONE', 0);
/**
* RSS 0.90
*/
define('SIMPLEPIE_TYPE_RSS_090', 1);
/**
* RSS 0.91 (Netscape)
*/
define('SIMPLEPIE_TYPE_RSS_091_NETSCAPE', 2);
/**
* RSS 0.91 (Userland)
*/
define('SIMPLEPIE_TYPE_RSS_091_USERLAND', 4);
/**
* RSS 0.91 (both Netscape and Userland)
*/
define('SIMPLEPIE_TYPE_RSS_091', 6);
/**
* RSS 0.92
*/
define('SIMPLEPIE_TYPE_RSS_092', 8);
/**
* RSS 0.93
*/
define('SIMPLEPIE_TYPE_RSS_093', 16);
/**
* RSS 0.94
*/
define('SIMPLEPIE_TYPE_RSS_094', 32);
/**
* RSS 1.0
*/
define('SIMPLEPIE_TYPE_RSS_10', 64);
/**
* RSS 2.0
*/
define('SIMPLEPIE_TYPE_RSS_20', 128);
/**
* RDF-based RSS
*/
define('SIMPLEPIE_TYPE_RSS_RDF', 65);
/**
* Non-RDF-based RSS (truly intended as syndication format)
*/
define('SIMPLEPIE_TYPE_RSS_SYNDICATION', 190);
/**
* All RSS
*/
define('SIMPLEPIE_TYPE_RSS_ALL', 255);
/**
* Atom 0.3
*/
define('SIMPLEPIE_TYPE_ATOM_03', 256);
/**
* Atom 1.0
*/
define('SIMPLEPIE_TYPE_ATOM_10', 512);
/**
* All Atom
*/
define('SIMPLEPIE_TYPE_ATOM_ALL', 768);
/**
* All feed types
*/
define('SIMPLEPIE_TYPE_ALL', 1023);
/**
* No construct
*/
define('SIMPLEPIE_CONSTRUCT_NONE', 0);
/**
* Text construct
*/
define('SIMPLEPIE_CONSTRUCT_TEXT', 1);
/**
* HTML construct
*/
define('SIMPLEPIE_CONSTRUCT_HTML', 2);
/**
* XHTML construct
*/
define('SIMPLEPIE_CONSTRUCT_XHTML', 4);
/**
* base64-encoded construct
*/
define('SIMPLEPIE_CONSTRUCT_BASE64', 8);
/**
* IRI construct
*/
define('SIMPLEPIE_CONSTRUCT_IRI', 16);
/**
* A construct that might be HTML
*/
define('SIMPLEPIE_CONSTRUCT_MAYBE_HTML', 32);
/**
* All constructs
*/
define('SIMPLEPIE_CONSTRUCT_ALL', 63);
/**
* Don't change case
*/
define('SIMPLEPIE_SAME_CASE', 1);
/**
* Change to lowercase
*/
define('SIMPLEPIE_LOWERCASE', 2);
/**
* Change to uppercase
*/
define('SIMPLEPIE_UPPERCASE', 4);
/**
* PCRE for HTML attributes
*/
define('SIMPLEPIE_PCRE_HTML_ATTRIBUTE', '((?:[\x09\x0A\x0B\x0C\x0D\x20]+[^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"(?:[^"]*)"|\'(?:[^\']*)\'|(?:[^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?)*)[\x09\x0A\x0B\x0C\x0D\x20]*');
/**
* PCRE for XML attributes
*/
define('SIMPLEPIE_PCRE_XML_ATTRIBUTE', '((?:\s+(?:(?:[^\s:]+:)?[^\s:]+)\s*=\s*(?:"(?:[^"]*)"|\'(?:[^\']*)\'))*)\s*');
/**
* XML Namespace
*/
define('SIMPLEPIE_NAMESPACE_XML', 'http://www.w3.org/XML/1998/namespace');
/**
* Atom 1.0 Namespace
*/
define('SIMPLEPIE_NAMESPACE_ATOM_10', 'http://www.w3.org/2005/Atom');
/**
* Atom 0.3 Namespace
*/
define('SIMPLEPIE_NAMESPACE_ATOM_03', 'http://purl.org/atom/ns#');
/**
* RDF Namespace
*/
define('SIMPLEPIE_NAMESPACE_RDF', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');
/**
* RSS 0.90 Namespace
*/
define('SIMPLEPIE_NAMESPACE_RSS_090', 'http://my.netscape.com/rdf/simple/0.9/');
/**
* RSS 1.0 Namespace
*/
define('SIMPLEPIE_NAMESPACE_RSS_10', 'http://purl.org/rss/1.0/');
/**
* RSS 1.0 Content Module Namespace
*/
define('SIMPLEPIE_NAMESPACE_RSS_10_MODULES_CONTENT', 'http://purl.org/rss/1.0/modules/content/');
/**
* RSS 2.0 Namespace
* (Stupid, I know, but I'm certain it will confuse people less with support.)
*/
define('SIMPLEPIE_NAMESPACE_RSS_20', '');
/**
* DC 1.0 Namespace
*/
define('SIMPLEPIE_NAMESPACE_DC_10', 'http://purl.org/dc/elements/1.0/');
/**
* DC 1.1 Namespace
*/
define('SIMPLEPIE_NAMESPACE_DC_11', 'http://purl.org/dc/elements/1.1/');
/**
* W3C Basic Geo (WGS84 lat/long) Vocabulary Namespace
*/
define('SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO', 'http://www.w3.org/2003/01/geo/wgs84_pos#');
/**
* GeoRSS Namespace
*/
define('SIMPLEPIE_NAMESPACE_GEORSS', 'http://www.georss.org/georss');
/**
* Media RSS Namespace
*/
define('SIMPLEPIE_NAMESPACE_MEDIARSS', 'http://search.yahoo.com/mrss/');
/**
* Wrong Media RSS Namespace. Caused by a long-standing typo in the spec.
*/
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG', 'http://search.yahoo.com/mrss');
/**
* Wrong Media RSS Namespace #2. New namespace introduced in Media RSS 1.5.
*/
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG2', 'http://video.search.yahoo.com/mrss');
/**
* Wrong Media RSS Namespace #3. A possible typo of the Media RSS 1.5 namespace.
*/
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG3', 'http://video.search.yahoo.com/mrss/');
/**
* Wrong Media RSS Namespace #4. New spec location after the RSS Advisory Board takes it over, but not a valid namespace.
*/
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG4', 'http://www.rssboard.org/media-rss');
/**
* Wrong Media RSS Namespace #5. A possible typo of the RSS Advisory Board URL.
*/
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG5', 'http://www.rssboard.org/media-rss/');
/**
* iTunes RSS Namespace
*/
define('SIMPLEPIE_NAMESPACE_ITUNES', 'http://www.itunes.com/dtds/podcast-1.0.dtd');
/**
* XHTML Namespace
*/
define('SIMPLEPIE_NAMESPACE_XHTML', 'http://www.w3.org/1999/xhtml');
/**
* IANA Link Relations Registry
*/
define('SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY', 'http://www.iana.org/assignments/relation/');
/**
* No file source
*/
define('SIMPLEPIE_FILE_SOURCE_NONE', 0);
/**
* Remote file source
*/
define('SIMPLEPIE_FILE_SOURCE_REMOTE', 1);
/**
* Local file source
*/
define('SIMPLEPIE_FILE_SOURCE_LOCAL', 2);
/**
* fsockopen() file source
*/
define('SIMPLEPIE_FILE_SOURCE_FSOCKOPEN', 4);
/**
* cURL file source
*/
define('SIMPLEPIE_FILE_SOURCE_CURL', 8);
/**
* file_get_contents() file source
*/
define('SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS', 16);
/**
* SimplePie
*
* @package SimplePie
* @subpackage API
*/
class SimplePie
{
/**
* @var array Raw data
* @access private
*/
public $data = array();
/**
* @var mixed Error string
* @access private
*/
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
*/
public $sanitize;
/**
* @var string SimplePie Useragent
* @see SimplePie::set_useragent()
* @access private
*/
public $useragent = SIMPLEPIE_USERAGENT;
/**
* @var string Feed URL
* @see SimplePie::set_feed_url()
* @access private
*/
public $feed_url;
/**
* @var string Original feed URL, or new feed URL iff HTTP 301 Moved Permanently
* @see SimplePie::subscribe_url()
* @access private
*/
public $permanent_url = null;
/**
* @var object Instance of SimplePie_File to use as a feed
* @see SimplePie::set_file()
* @access private
*/
public $file;
/**
* @var string Raw feed data
* @see SimplePie::set_raw_data()
* @access private
*/
public $raw_data;
/**
* @var int Timeout for fetching remote files
* @see SimplePie::set_timeout()
* @access private
*/
public $timeout = 10;
/**
* @var array Custom curl options
* @see SimplePie::set_curl_options()
* @access private
*/
public $curl_options = array();
/**
* @var bool Forces fsockopen() to be used for remote files instead
* of cURL, even if a new enough version is installed
* @see SimplePie::force_fsockopen()
* @access private
*/
public $force_fsockopen = false;
/**
* @var bool Force the given data/URL to be treated as a feed no matter what
* it appears like
* @see SimplePie::force_feed()
* @access private
*/
public $force_feed = false;
/**
* @var bool Enable/Disable Caching
* @see SimplePie::enable_cache()
* @access private
*/
public $cache = true;
/**
* @var bool Force SimplePie to fallback to expired cache, if enabled,
* when feed is unavailable.
* @see SimplePie::force_cache_fallback()
* @access private
*/
public $force_cache_fallback = false;
/**
* @var int Cache duration (in seconds)
* @see SimplePie::set_cache_duration()
* @access private
*/
public $cache_duration = 3600;
/**
* @var int Auto-discovery cache duration (in seconds)
* @see SimplePie::set_autodiscovery_cache_duration()
* @access private
*/
public $autodiscovery_cache_duration = 604800; // 7 Days.
/**
* @var string Cache location (relative to executing script)
* @see SimplePie::set_cache_location()
* @access private
*/
public $cache_location = './cache';
/**
* @var string Function that creates the cache filename
* @see SimplePie::set_cache_name_function()
* @access private
*/
public $cache_name_function = 'md5';
/**
* @var bool Reorder feed by date descending
* @see SimplePie::enable_order_by_date()
* @access private
*/
public $order_by_date = true;
/**
* @var mixed Force input encoding to be set to the follow value
* (false, or anything type-cast to false, disables this feature)
* @see SimplePie::set_input_encoding()
* @access private
*/
public $input_encoding = false;
/**
* @var int Feed Autodiscovery Level
* @see SimplePie::set_autodiscovery_level()
* @access private
*/
public $autodiscovery = SIMPLEPIE_LOCATOR_ALL;
/**
* Class registry object
*
* @var SimplePie_Registry
*/
public $registry;
/**
* @var int Maximum number of feeds to check with autodiscovery
* @see SimplePie::set_max_checked_feeds()
* @access private
*/
public $max_checked_feeds = 10;
/**
* @var array All the feeds found during the autodiscovery process
* @see SimplePie::get_all_discovered_feeds()
* @access private
*/
public $all_discovered_feeds = array();
/**
* @var string Web-accessible path to the handler_image.php file.
* @see SimplePie::set_image_handler()
* @access private
*/
public $image_handler = '';
/**
* @var array Stores the URLs when multiple feeds are being initialized.
* @see SimplePie::set_feed_url()
* @access private
*/
public $multifeed_url = array();
/**
* @var array Stores SimplePie objects when multiple feeds initialized.
* @access private
*/
public $multifeed_objects = array();
/**
* @var array Stores the get_object_vars() array for use with multifeeds.
* @see SimplePie::set_feed_url()
* @access private
*/
public $config_settings = null;
/**
* @var integer Stores the number of items to return per-feed with multifeeds.
* @see SimplePie::set_item_limit()
* @access private
*/
public $item_limit = 0;
/**
* @var bool Stores if last-modified and/or etag headers were sent with the
* request when checking a feed.
*/
public $check_modified = false;
/**
* @var array Stores the default attributes to be stripped by strip_attributes().
* @see SimplePie::strip_attributes()
* @access private
*/
public $strip_attributes = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur', 'lowsrc', 'dynsrc');
/**
* @var array Stores the default attributes to add to different tags by add_attributes().
* @see SimplePie::add_attributes()
* @access private
*/
public $add_attributes = array('audio' => array('preload' => 'none'), 'iframe' => array('sandbox' => 'allow-scripts allow-same-origin'), 'video' => array('preload' => 'none'));
/**
* @var array Stores the default tags to be stripped by strip_htmltags().
* @see SimplePie::strip_htmltags()
* @access private
*/
public $strip_htmltags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style');
/**
* @var bool Should we throw exceptions, or use the old-style error property?
* @access private
*/
public $enable_exceptions = false;
/**
* The SimplePie class contains feed level data and options
*
* To use SimplePie, create the SimplePie object with no parameters. You can
* then set configuration options using the provided methods. After setting
* them, you must initialise the feed using $feed->init(). At that point the
* object's methods and properties will be available to you.
*
* Previously, it was possible to pass in the feed URL along with cache
* options directly into the constructor. This has been removed as of 1.3 as
* it caused a lot of confusion.
*
* @since 1.0 Preview Release
*/
public function __construct()
{
if (version_compare(PHP_VERSION, '5.6', '<'))
{
trigger_error('Please upgrade to PHP 5.6 or newer.');
die();
}
// Other objects, instances created here so we can set options on them
$this->sanitize = new SimplePie_Sanitize();
$this->registry = new SimplePie_Registry();
if (func_num_args() > 0)
{
$level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
trigger_error('Passing parameters to the constructor is no longer supported. Please use set_feed_url(), set_cache_location(), and set_cache_duration() directly.', $level);
$args = func_get_args();
switch (count($args)) {
case 3:
$this->set_cache_duration($args[2]);
case 2:
$this->set_cache_location($args[1]);
case 1:
$this->set_feed_url($args[0]);
$this->init();
}
}
}
/**
* Used for converting object to a string
*/
public function __toString()
{
return md5(serialize($this->data));
}
/**
* Remove items that link back to this before destroying this object
*/
public function __destruct()
{
if (!gc_enabled())
{
if (!empty($this->data['items']))
{
foreach ($this->data['items'] as $item)
{
$item->__destruct();
}
unset($item, $this->data['items']);
}
if (!empty($this->data['ordered_items']))
{
foreach ($this->data['ordered_items'] as $item)
{
$item->__destruct();
}
unset($item, $this->data['ordered_items']);
}
}
}
/**
* Force the given data/URL to be treated as a feed
*
* This tells SimplePie to ignore the content-type provided by the server.
* Be careful when using this option, as it will also disable autodiscovery.
*
* @since 1.1
* @param bool $enable Force the given data/URL to be treated as a feed
*/
public function force_feed($enable = false)
{
$this->force_feed = (bool) $enable;
}
/**
* Set the URL of the feed you want to parse
*
* This allows you to enter the URL of the feed you want to parse, or the
* website you want to try to use auto-discovery on. This takes priority
* over any set raw data.
*
* You can set multiple feeds to mash together by passing an array instead
* of a string for the $url. Remember that with each additional feed comes
* additional processing and resources.
*
* @since 1.0 Preview Release
* @see set_raw_data()
* @param string|array $url This is the URL (or array of URLs) that you want to parse.
*/
public function set_feed_url($url)
{
$this->multifeed_url = array();
if (is_array($url))
{
foreach ($url as $value)
{
$this->multifeed_url[] = $this->registry->call('Misc', 'fix_protocol', array($value, 1));
}
}
else
{
$this->feed_url = $this->registry->call('Misc', 'fix_protocol', array($url, 1));
$this->permanent_url = $this->feed_url;
}
}
/**
* Set an instance of {@see SimplePie_File} to use as a feed
*
* @param SimplePie_File &$file
* @return bool True on success, false on failure
*/
public function set_file(&$file)
{
if ($file instanceof SimplePie_File)
{
$this->feed_url = $file->url;
$this->permanent_url = $this->feed_url;
$this->file =& $file;
return true;
}
return false;
}
/**
* Set the raw XML data to parse
*
* Allows you to use a string of RSS/Atom data instead of a remote feed.
*
* If you have a feed available as a string in PHP, you can tell SimplePie
* to parse that data string instead of a remote feed. Any set feed URL
* takes precedence.
*
* @since 1.0 Beta 3
* @param string $data RSS or Atom data as a string.
* @see set_feed_url()
*/
public function set_raw_data($data)
{
$this->raw_data = $data;
}
/**
* Set the default timeout for fetching remote feeds
*
* This allows you to change the maximum time the feed's server to respond
* and send the feed back.
*
* @since 1.0 Beta 3
* @param int $timeout The maximum number of seconds to spend waiting to retrieve a feed.
*/
public function set_timeout($timeout = 10)
{
$this->timeout = (int) $timeout;
}
/**
* Set custom curl options
*
* This allows you to change default curl options
*
* @since 1.0 Beta 3
* @param array $curl_options Curl options to add to default settings
*/
public function set_curl_options(array $curl_options = array())
{
$this->curl_options = $curl_options;
}
/**
* Force SimplePie to use fsockopen() instead of cURL
*
* @since 1.0 Beta 3
* @param bool $enable Force fsockopen() to be used
*/
public function force_fsockopen($enable = false)
{
$this->force_fsockopen = (bool) $enable;
}
/**
* Enable/disable caching in SimplePie.
*
* This option allows you to disable caching all-together in SimplePie.
* However, disabling the cache can lead to longer load times.
*
* @since 1.0 Preview Release
* @param bool $enable Enable caching
*/
public function enable_cache($enable = true)
{
$this->cache = (bool) $enable;
}
/**
* SimplePie to continue to fall back to expired cache, if enabled, when
* feed is unavailable.
*
* This tells SimplePie to ignore any file errors and fall back to cache
* instead. This only works if caching is enabled and cached content
* still exists.
* @param bool $enable Force use of cache on fail.
*/
public function force_cache_fallback($enable = false)
{
$this->force_cache_fallback= (bool) $enable;
}
/**
* Set the length of time (in seconds) that the contents of a feed will be
* cached
*
* @param int $seconds The feed content cache duration
*/
public function set_cache_duration($seconds = 3600)
{
$this->cache_duration = (int) $seconds;
}
/**
* Set the length of time (in seconds) that the autodiscovered feed URL will
* be cached
*
* @param int $seconds The autodiscovered feed URL cache duration.
*/
public function set_autodiscovery_cache_duration($seconds = 604800)
{
$this->autodiscovery_cache_duration = (int) $seconds;
}
/**
* Set the file system location where the cached files should be stored
*
* @param string $location The file system location.
*/
public function set_cache_location($location = './cache')
{
$this->cache_location = (string) $location;
}
/**
* 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 $enable Sort as reverse chronological order.
*/
public function enable_order_by_date($enable = true)
{
$this->order_by_date = (bool) $enable;
}
/**
* Set the character encoding used to parse the feed
*
* This overrides the encoding reported by the feed, however it will fall
* back to the normal encoding detection if the override fails
*
* @param string $encoding Character encoding
*/
public function set_input_encoding($encoding = false)
{
if ($encoding)
{
$this->input_encoding = (string) $encoding;
}
else
{
$this->input_encoding = false;
}
}
/**
* Set how much feed autodiscovery to do
*
* @see SIMPLEPIE_LOCATOR_NONE
* @see SIMPLEPIE_LOCATOR_AUTODISCOVERY
* @see SIMPLEPIE_LOCATOR_LOCAL_EXTENSION
* @see SIMPLEPIE_LOCATOR_LOCAL_BODY
* @see SIMPLEPIE_LOCATOR_REMOTE_EXTENSION
* @see SIMPLEPIE_LOCATOR_REMOTE_BODY
* @see SIMPLEPIE_LOCATOR_ALL
* @param int $level Feed Autodiscovery Level (level can be a combination of the above constants, see bitwise OR operator)
*/
public function set_autodiscovery_level($level = SIMPLEPIE_LOCATOR_ALL)
{
$this->autodiscovery = (int) $level;
}
/**
* Get the class registry
*
* Use this to override SimplePie's default classes
* @see SimplePie_Registry
* @return SimplePie_Registry
*/
public function &get_registry()
{
return $this->registry;
}
/**#@+
* Useful when you are overloading or extending SimplePie's default classes.
*
* @deprecated Use {@see get_registry()} instead
* @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
* @param string $class Name of custom class
* @return boolean True on success, false otherwise
*/
/**
* Set which class SimplePie uses for caching
*/
public function set_cache_class($class = 'SimplePie_Cache')
{
return $this->registry->register('Cache', $class, true);
}
/**
* Set which class SimplePie uses for auto-discovery
*/
public function set_locator_class($class = 'SimplePie_Locator')
{
return $this->registry->register('Locator', $class, true);
}
/**
* Set which class SimplePie uses for XML parsing
*/
public function set_parser_class($class = 'SimplePie_Parser')
{
return $this->registry->register('Parser', $class, true);
}
/**
* Set which class SimplePie uses for remote file fetching
*/
public function set_file_class($class = 'SimplePie_File')
{
return $this->registry->register('File', $class, true);
}
/**
* Set which class SimplePie uses for data sanitization
*/
public function set_sanitize_class($class = 'SimplePie_Sanitize')
{
return $this->registry->register('Sanitize', $class, true);
}
/**
* Set which class SimplePie uses for handling feed items
*/
public function set_item_class($class = 'SimplePie_Item')
{
return $this->registry->register('Item', $class, true);
}
/**
* Set which class SimplePie uses for handling author data
*/
public function set_author_class($class = 'SimplePie_Author')
{
return $this->registry->register('Author', $class, true);
}
/**
* Set which class SimplePie uses for handling category data
*/
public function set_category_class($class = 'SimplePie_Category')
{
return $this->registry->register('Category', $class, true);
}
/**
* Set which class SimplePie uses for feed enclosures
*/
public function set_enclosure_class($class = 'SimplePie_Enclosure')
{
return $this->registry->register('Enclosure', $class, true);
}
/**
* Set which class SimplePie uses for `<media:text>` captions
*/
public function set_caption_class($class = 'SimplePie_Caption')
{
return $this->registry->register('Caption', $class, true);
}
/**
* Set which class SimplePie uses for `<media:copyright>`
*/
public function set_copyright_class($class = 'SimplePie_Copyright')
{
return $this->registry->register('Copyright', $class, true);
}
/**
* Set which class SimplePie uses for `<media:credit>`
*/
public function set_credit_class($class = 'SimplePie_Credit')
{
return $this->registry->register('Credit', $class, true);
}
/**
* Set which class SimplePie uses for `<media:rating>`
*/
public function set_rating_class($class = 'SimplePie_Rating')
{
return $this->registry->register('Rating', $class, true);
}
/**
* Set which class SimplePie uses for `<media:restriction>`
*/
public function set_restriction_class($class = 'SimplePie_Restriction')
{
return $this->registry->register('Restriction', $class, true);
}
/**
* Set which class SimplePie uses for content-type sniffing
*/
public function set_content_type_sniffer_class($class = 'SimplePie_Content_Type_Sniffer')
{
return $this->registry->register('Content_Type_Sniffer', $class, true);
}
/**
* Set which class SimplePie uses item sources
*/
public function set_source_class($class = 'SimplePie_Source')
{
return $this->registry->register('Source', $class, true);
}
/**#@-*/
/**
* Set the user agent string
*
* @param string $ua New user agent string.
*/
public function set_useragent($ua = SIMPLEPIE_USERAGENT)
{
$this->useragent = (string) $ua;
}
/**
* Set callback function to create cache filename with
*
* @param mixed $function Callback function
*/
public function set_cache_name_function($function = 'md5')
{
if (is_callable($function))
{
$this->cache_name_function = $function;
}
}
/**
* Set options to make SP as fast as possible
*
* Forgoes a substantial amount of data sanitization in favor of speed. This
* turns SimplePie into a dumb parser of feeds.
*
* @param bool $set Whether to set them or not
*/
public function set_stupidly_fast($set = false)
{
if ($set)
{
$this->enable_order_by_date(false);
$this->remove_div(false);
$this->strip_comments(false);
$this->strip_htmltags(false);
$this->strip_attributes(false);
$this->add_attributes(false);
$this->set_image_handler(false);
$this->set_https_domains(array());
}
}
/**
* Set maximum number of feeds to check with autodiscovery
*
* @param int $max Maximum number of feeds to check
*/
public function set_max_checked_feeds($max = 10)
{
$this->max_checked_feeds = (int) $max;
}
public function remove_div($enable = true)
{
$this->sanitize->remove_div($enable);
}
public function strip_htmltags($tags = '', $encode = null)
{
if ($tags === '')
{
$tags = $this->strip_htmltags;
}
$this->sanitize->strip_htmltags($tags);
if ($encode !== null)
{
$this->sanitize->encode_instead_of_strip($tags);
}
}
public function encode_instead_of_strip($enable = true)
{
$this->sanitize->encode_instead_of_strip($enable);
}
public function strip_attributes($attribs = '')
{
if ($attribs === '')
{
$attribs = $this->strip_attributes;
}
$this->sanitize->strip_attributes($attribs);
}
public function add_attributes($attribs = '')
{
if ($attribs === '')
{
$attribs = $this->add_attributes;
}
$this->sanitize->add_attributes($attribs);
}
/**
* Set the output encoding
*
* Allows you to override SimplePie's output to match that of your webpage.
* This is useful for times when your webpages are not being served as
* UTF-8. This setting will be obeyed by {@see handle_content_type()}, and
* is similar to {@see set_input_encoding()}.
*
* It should be noted, however, that not all character encodings can support
* all characters. If your page is being served as ISO-8859-1 and you try
* to display a Japanese feed, you'll likely see garbled characters.
* Because of this, it is highly recommended to ensure that your webpages
* are served as UTF-8.
*
* The number of supported character encodings depends on whether your web
* host supports {@link http://php.net/mbstring mbstring},
* {@link http://php.net/iconv iconv}, or both. See
* {@link http://simplepie.org/wiki/faq/Supported_Character_Encodings} for
* more information.
*
* @param string $encoding
*/
public function set_output_encoding($encoding = 'UTF-8')
{
$this->sanitize->set_output_encoding($encoding);
}
public function strip_comments($strip = false)
{
$this->sanitize->strip_comments($strip);
}
/**
* Set element/attribute key/value pairs of HTML attributes
* containing URLs that need to be resolved relative to the feed
*
* Defaults to |a|@href, |area|@href, |blockquote|@cite, |del|@cite,
* |form|@action, |img|@longdesc, |img|@src, |input|@src, |ins|@cite,
* |q|@cite
*
* @since 1.0
* @param array|null $element_attribute Element/attribute key/value pairs, null for default
*/
public function set_url_replacements($element_attribute = null)
{
$this->sanitize->set_url_replacements($element_attribute);
}
/**
* 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 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, $qs = 'i')
{
if ($page !== false)
{
$this->sanitize->set_image_handler($page . '?' . $qs . '=');
}
else
{
$this->image_handler = '';
}
}
/**
* Set the limit for items returned per-feed with multifeeds
*
* @param integer $limit The maximum number of items to return.
*/
public function set_item_limit($limit = 0)
{
$this->item_limit = (int) $limit;
}
/**
* Enable throwing exceptions
*
* @param boolean $enable Should we throw exceptions, or use the old-style error property?
*/
public function enable_exceptions($enable = true)
{
$this->enable_exceptions = $enable;
}
/**
* Initialize the feed object
*
* This is what makes everything happen. Period. This is where all of the
* configuration options get processed, feeds are fetched, cached, and
* parsed, and all of that other good stuff.
*
* @return boolean True if successful, false otherwise
*/
public function init()
{
// Check absolute bare minimum requirements.
if (!extension_loaded('xml') || !extension_loaded('pcre'))
{
$this->error = 'XML or PCRE extensions not loaded!';
return false;
}
// Then check the xml extension is sane (i.e., libxml 2.7.x issue on PHP < 5.2.9 and libxml 2.7.0 to 2.7.2 on any version) if we don't have xmlreader.
elseif (!extension_loaded('xmlreader'))
{
static $xml_is_sane = null;
if ($xml_is_sane === null)
{
$parser_check = xml_parser_create();
xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
xml_parser_free($parser_check);
$xml_is_sane = isset($values[0]['value']);
}
if (!$xml_is_sane)
{
return false;
}
}
// The default sanitize class gets set in the constructor, check if it has
// changed.
if ($this->registry->get_class('Sanitize') !== 'SimplePie_Sanitize') {
$this->sanitize = $this->registry->create('Sanitize');
}
if (method_exists($this->sanitize, 'set_registry'))
{
$this->sanitize->set_registry($this->registry);
}
// Pass whatever was set with config options over to the sanitizer.
// Pass the classes in for legacy support; new classes should use the registry instead
$this->sanitize->pass_cache_data($this->cache, $this->cache_location, $this->cache_name_function, $this->registry->get_class('Cache'));
$this->sanitize->pass_file_data($this->registry->get_class('File'), $this->timeout, $this->useragent, $this->force_fsockopen, $this->curl_options);
if (!empty($this->multifeed_url))
{
$i = 0;
$success = 0;
$this->multifeed_objects = array();
$this->error = array();
foreach ($this->multifeed_url as $url)
{
$this->multifeed_objects[$i] = clone $this;
$this->multifeed_objects[$i]->set_feed_url($url);
$single_success = $this->multifeed_objects[$i]->init();
$success |= $single_success;
if (!$single_success)
{
$this->error[$i] = $this->multifeed_objects[$i]->error();
}
$i++;
}
return (bool) $success;
}
elseif ($this->feed_url === null && $this->raw_data === null)
{
return false;
}
$this->error = null;
$this->data = array();
$this->check_modified = false;
$this->multifeed_objects = array();
$cache = false;
if ($this->feed_url !== null)
{
$parsed_feed_url = $this->registry->call('Misc', 'parse_url', array($this->feed_url));
// Decide whether to enable caching
if ($this->cache && $parsed_feed_url['scheme'] !== '')
{
$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 $this->raw_data
if (($fetched = $this->fetch_data($cache)) === true)
{
return true;
}
elseif ($fetched === false) {
return false;
}
list($headers, $sniffed) = $fetched;
}
// Empty response check
if(empty($this->raw_data)){
$this->error = "A feed could not be found at `$this->feed_url`. Empty body.";
$this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
return false;
}
// Set up array of possible encodings
$encodings = array();
// First check to see if input has been overridden.
if ($this->input_encoding !== false)
{
$encodings[] = strtoupper($this->input_encoding);
}
$application_types = array('application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity');
$text_types = array('text/xml', 'text/xml-external-parsed-entity');
// RFC 3023 (only applies to sniffed content)
if (isset($sniffed))
{
if (in_array($sniffed, $application_types) || substr($sniffed, 0, 12) === 'application/' && substr($sniffed, -4) === '+xml')
{
if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset))
{
$encodings[] = strtoupper($charset[1]);
}
$encodings = array_merge($encodings, $this->registry->call('Misc', 'xml_encoding', array($this->raw_data, &$this->registry)));
$encodings[] = 'UTF-8';
}
elseif (in_array($sniffed, $text_types) || substr($sniffed, 0, 5) === 'text/' && substr($sniffed, -4) === '+xml')
{
if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset))
{
$encodings[] = strtoupper($charset[1]);
}
$encodings[] = 'US-ASCII';
}
// Text MIME-type default
elseif (substr($sniffed, 0, 5) === 'text/')
{
$encodings[] = 'UTF-8';
}
}
// Fallback to XML 1.0 Appendix F.1/UTF-8/ISO-8859-1
$encodings = array_merge($encodings, $this->registry->call('Misc', 'xml_encoding', array($this->raw_data, &$this->registry)));
$encodings[] = 'UTF-8';
$encodings[] = 'ISO-8859-1';
// There's no point in trying an encoding twice
$encodings = array_unique($encodings);
// Loop through each possible encoding, till we return something, or run out of possibilities
foreach ($encodings as $encoding)
{
// Change the encoding to UTF-8 (as we always use UTF-8 internally)
if ($utf8_data = $this->registry->call('Misc', 'change_encoding', array($this->raw_data, $encoding, 'UTF-8')))
{
// Create new parser
$parser = $this->registry->create('Parser');
// If it's parsed fine
if ($parser->parse($utf8_data, 'UTF-8', $this->permanent_url))
{
$this->data = $parser->get_data();
if (!($this->get_type() & ~SIMPLEPIE_TYPE_NONE))
{
$this->error = "A feed could not be found at `$this->feed_url`. This does not appear to be a valid RSS or Atom feed.";
$this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
return false;
}
if (isset($headers))
{
$this->data['headers'] = $headers;
}
$this->data['build'] = SIMPLEPIE_BUILD;
// Cache the file if caching is enabled
if ($cache && !$cache->save($this))
{
trigger_error("$this->cache_location is not writable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
}
return true;
}
}
}
if (isset($parser))
{
// We have an error, just set SimplePie_Misc::error to it and quit
$this->error = $this->feed_url;
$this->error .= sprintf(' is invalid XML, likely due to invalid characters. XML error: %s at line %d, column %d', $parser->get_error_string(), $parser->get_current_line(), $parser->get_current_column());
}
else
{
$this->error = 'The data could not be converted to UTF-8.';
if (!extension_loaded('mbstring') && !extension_loaded('iconv') && !class_exists('\UConverter')) {
$this->error .= ' You MUST have either the iconv, mbstring or intl (PHP 5.5+) extension installed and enabled.';
} else {
$missingExtensions = array();
if (!extension_loaded('iconv')) {
$missingExtensions[] = 'iconv';
}
if (!extension_loaded('mbstring')) {
$missingExtensions[] = 'mbstring';
}
if (!class_exists('\UConverter')) {
$missingExtensions[] = 'intl (PHP 5.5+)';
}
$this->error .= ' Try installing/enabling the ' . implode(' or ', $missingExtensions) . ' extension.';
}
}
$this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
return false;
}
/**
* Fetch the data via SimplePie_File
*
* If the data is already cached, attempt to fetch it from there instead
* @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)
{
// If it's enabled, use the cache
if ($cache)
{
// Load the Cache
$this->data = $cache->load();
if (!empty($this->data))
{
// If the cache is for an outdated build of SimplePie
if (!isset($this->data['build']) || $this->data['build'] !== SIMPLEPIE_BUILD)
{
$cache->unlink();
$this->data = array();
}
// If we've hit a collision just rerun it with caching disabled
elseif (isset($this->data['url']) && $this->data['url'] !== $this->feed_url)
{
$cache = false;
$this->data = array();
}
// If we've got a non feed_url stored (if the page isn't actually a feed, or is a redirect) use that URL.
elseif (isset($this->data['feed_url']))
{
// If the autodiscovery cache is still valid use it.
if ($cache->mtime() + $this->autodiscovery_cache_duration > time())
{
// Do not need to do feed autodiscovery yet.
if ($this->data['feed_url'] !== $this->data['url'])
{
$this->set_feed_url($this->data['feed_url']);
return $this->init();
}
$cache->unlink();
$this->data = array();
}
}
// Check if the cache has been updated
elseif ($cache->mtime() + $this->cache_duration < time())
{
// Want to know if we tried to send last-modified and/or etag headers
// when requesting this file. (Note that it's up to the file to
// support this, but we don't always send the headers either.)
$this->check_modified = true;
if (isset($this->data['headers']['last-modified']) || isset($this->data['headers']['etag']))
{
$headers = array(
'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
);
if (isset($this->data['headers']['last-modified']))
{
$headers['if-modified-since'] = $this->data['headers']['last-modified'];
}
if (isset($this->data['headers']['etag']))
{
$headers['if-none-match'] = $this->data['headers']['etag'];
}
$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)
{
if ($file->status_code === 304)
{
// Set raw_data to false here too, to signify that the cache
// is still valid.
$this->raw_data = false;
$cache->touch();
return true;
}
}
else
{
$this->check_modified = false;
if($this->force_cache_fallback)
{
$cache->touch();
return true;
}
unset($file);
}
}
}
// If the cache is still valid, just return true
else
{
$this->raw_data = false;
return true;
}
}
// If the cache is empty, delete it
else
{
$cache->unlink();
$this->data = array();
}
}
// If we don't already have the file (it'll only exist if we've opened it to check if the cache has been modified), open it.
if (!isset($file))
{
if ($this->file instanceof SimplePie_File && $this->file->url === $this->feed_url)
{
$file =& $this->file;
}
else
{
$headers = array(
'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
);
$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)))
{
$this->error = $file->error;
return !empty($this->data);
}
if (!$this->force_feed)
{
// Check if the supplied URL is a feed, if it isn't, look for it.
$locate = $this->registry->create('Locator', array(&$file, $this->timeout, $this->useragent, $this->max_checked_feeds, $this->force_fsockopen, $this->curl_options));
if (!$locate->is_feed($file))
{
$copyStatusCode = $file->status_code;
$copyContentType = $file->headers['content-type'];
try
{
$microformats = false;
if (class_exists('DOMXpath') && function_exists('Mf2\parse')) {
$doc = new DOMDocument();
@$doc->loadHTML($file->body);
$xpath = new DOMXpath($doc);
// Check for both h-feed and h-entry, as both a feed with no entries
// and a list of entries without an h-feed wrapper are both valid.
$query = '//*[contains(concat(" ", @class, " "), " h-feed ") or '.
'contains(concat(" ", @class, " "), " h-entry ")]';
$result = $xpath->query($query);
$microformats = $result->length !== 0;
}
// Now also do feed discovery, but if microformats were found don't
// overwrite the current value of file.
$discovered = $locate->find($this->autodiscovery,
$this->all_discovered_feeds);
if ($microformats)
{
if ($hub = $locate->get_rel_link('hub'))
{
$self = $locate->get_rel_link('self');
$this->store_links($file, $hub, $self);
}
// Push the current file onto all_discovered feeds so the user can
// be shown this as one of the options.
if (isset($this->all_discovered_feeds)) {
$this->all_discovered_feeds[] = $file;
}
}
else
{
if ($discovered)
{
$file = $discovered;
}
else
{
// We need to unset this so that if SimplePie::set_file() has
// been called that object is untouched
unset($file);
$this->error = "A feed could not be found at `$this->feed_url`; the status code is `$copyStatusCode` and content-type is `$copyContentType`";
$this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
return false;
}
}
}
catch (SimplePie_Exception $e)
{
// We need to unset this so that if SimplePie::set_file() has been called that object is untouched
unset($file);
// This is usually because DOMDocument doesn't exist
$this->error = $e->getMessage();
$this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, $e->getFile(), $e->getLine()));
return false;
}
if ($cache)
{
$this->data = array('url' => $this->feed_url, 'feed_url' => $file->url, 'build' => SIMPLEPIE_BUILD);
if (!$cache->save($this))
{
trigger_error("$this->cache_location is not writable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
}
$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;
$locate = null;
}
$this->raw_data = $file->body;
$this->permanent_url = $file->permanent_url;
$headers = $file->headers;
$sniffer = $this->registry->create('Content_Type_Sniffer', array(&$file));
$sniffed = $sniffer->get_type();
return array($headers, $sniffed);
}
/**
* Get the error message for the occurred error
*
* @return string|array Error message, or array of messages for multifeeds
*/
public function error()
{
return $this->error;
}
/**
* 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
* the data instead of printing it.
*
* @return string|boolean Raw XML data, false if the cache is used
*/
public function get_raw_data()
{
return $this->raw_data;
}
/**
* Get the character encoding used for output
*
* @since Preview Release
* @return string
*/
public function get_encoding()
{
return $this->sanitize->output_encoding;
}
/**
* Send the Content-Type header with correct encoding
*
* This method ensures that the SimplePie-enabled page is being served with
* the correct {@link http://www.iana.org/assignments/media-types/ mime-type}
* and character encoding HTTP headers (character encoding determined by the
* {@see set_output_encoding} config option).
*
* This won't work properly if any content or whitespace has already been
* sent to the browser, because it relies on PHP's
* {@link http://php.net/header header()} function, and these are the
* circumstances under which the function works.
*
* Because it's setting these settings for the entire page (as is the nature
* of HTTP headers), this should only be used once per page (again, at the
* top).
*
* @param string $mime MIME type to serve the page as
*/
public function handle_content_type($mime = 'text/html')
{
if (!headers_sent())
{
$header = "Content-Type: $mime;";
if ($this->get_encoding())
{
$header .= ' charset=' . $this->get_encoding();
}
else
{
$header .= ' charset=UTF-8';
}
header($header);
}
}
/**
* Get the type of the feed
*
* This returns a SIMPLEPIE_TYPE_* constant, which can be tested against
* using {@link http://php.net/language.operators.bitwise bitwise operators}
*
* @since 0.8 (usage changed to using constants in 1.0)
* @see SIMPLEPIE_TYPE_NONE Unknown.
* @see SIMPLEPIE_TYPE_RSS_090 RSS 0.90.
* @see SIMPLEPIE_TYPE_RSS_091_NETSCAPE RSS 0.91 (Netscape).
* @see SIMPLEPIE_TYPE_RSS_091_USERLAND RSS 0.91 (Userland).
* @see SIMPLEPIE_TYPE_RSS_091 RSS 0.91.
* @see SIMPLEPIE_TYPE_RSS_092 RSS 0.92.
* @see SIMPLEPIE_TYPE_RSS_093 RSS 0.93.
* @see SIMPLEPIE_TYPE_RSS_094 RSS 0.94.
* @see SIMPLEPIE_TYPE_RSS_10 RSS 1.0.
* @see SIMPLEPIE_TYPE_RSS_20 RSS 2.0.x.
* @see SIMPLEPIE_TYPE_RSS_RDF RDF-based RSS.
* @see SIMPLEPIE_TYPE_RSS_SYNDICATION Non-RDF-based RSS (truly intended as syndication format).
* @see SIMPLEPIE_TYPE_RSS_ALL Any version of RSS.
* @see SIMPLEPIE_TYPE_ATOM_03 Atom 0.3.
* @see SIMPLEPIE_TYPE_ATOM_10 Atom 1.0.
* @see SIMPLEPIE_TYPE_ATOM_ALL Any version of Atom.
* @see SIMPLEPIE_TYPE_ALL Any known/supported feed type.
* @return int SIMPLEPIE_TYPE_* constant
*/
public function get_type()
{
if (!isset($this->data['type']))
{
$this->data['type'] = SIMPLEPIE_TYPE_ALL;
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed']))
{
$this->data['type'] &= SIMPLEPIE_TYPE_ATOM_10;
}
elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed']))
{
$this->data['type'] &= SIMPLEPIE_TYPE_ATOM_03;
}
elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF']))
{
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['channel'])
|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['image'])
|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item'])
|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['textinput']))
{
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_10;
}
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['channel'])
|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['image'])
|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item'])
|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['textinput']))
{
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_090;
}
}
elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss']))
{
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_ALL;
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version']))
{
switch (trim($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version']))
{
case '0.91':
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091;
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['skiphours']['hour'][0]['data']))
{
switch (trim($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['skiphours']['hour'][0]['data']))
{
case '0':
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091_NETSCAPE;
break;
case '24':
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091_USERLAND;
break;
}
}
break;
case '0.92':
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_092;
break;
case '0.93':
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_093;
break;
case '0.94':
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_094;
break;
case '2.0':
$this->data['type'] &= SIMPLEPIE_TYPE_RSS_20;
break;
}
}
}
else
{
$this->data['type'] = SIMPLEPIE_TYPE_NONE;
}
}
return $this->data['type'];
}
/**
* Get the URL for the feed
*
* When the 'permanent' mode is enabled, returns the original feed URL,
* except in the case of an `HTTP 301 Moved Permanently` status response,
* in which case the location of the first redirection is returned.
*
* 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, 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>
* @todo Also, |atom:link|@rel=self
* @param bool $permanent Permanent mode to return only the original URL or the first redirection
* iff it is a 301 redirection
* @return string|null
*/
public function subscribe_url($permanent = false)
{
if ($permanent)
{
if ($this->permanent_url !== null)
{
// sanitize encodes ampersands which are required when used in a url.
return str_replace('&amp;', '&',
$this->sanitize($this->permanent_url,
SIMPLEPIE_CONSTRUCT_IRI));
}
}
else
{
if ($this->feed_url !== null)
{
return str_replace('&amp;', '&',
$this->sanitize($this->feed_url,
SIMPLEPIE_CONSTRUCT_IRI));
}
}
return null;
}
/**
* Get data for an feed-level element
*
* This method allows you to get access to ANY element/attribute that is a
* sub-element of the opening feed tag.
*
* The return value is an indexed array of elements matching the given
* namespace and tag name. Each element has `attribs`, `data` and `child`
* subkeys. For `attribs` and `child`, these contain namespace subkeys.
* `attribs` then has one level of associative name => value data (where
* `value` is a string) after the namespace. `child` has tag-indexed keys
* after the namespace, each member of which is an indexed array matching
* this same format.
*
* For example:
* <pre>
* // This is probably a bad example because we already support
* // <media:content> natively, but it shows you how to parse through
* // the nodes.
* $group = $item->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'group');
* $content = $group[0]['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content'];
* $file = $content[0]['attribs']['']['url'];
* echo $file;
* </pre>
*
* @since 1.0
* @see http://simplepie.org/wiki/faq/supported_xml_namespaces
* @param string $namespace The URL of the XML namespace of the elements you're trying to access
* @param string $tag Tag name
* @return array
*/
public function get_feed_tags($namespace, $tag)
{
$type = $this->get_type();
if ($type & SIMPLEPIE_TYPE_ATOM_10)
{
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag]))
{
return $this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag];
}
}
if ($type & SIMPLEPIE_TYPE_ATOM_03)
{
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag]))
{
return $this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag];
}
}
if ($type & SIMPLEPIE_TYPE_RSS_RDF)
{
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag]))
{
return $this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag];
}
}
if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
{
if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag]))
{
return $this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag];
}
}
return null;
}
/**
* Get data for an channel-level element
*
* This method allows you to get access to ANY element/attribute in the
* channel/header section of the feed.
*
* See {@see SimplePie::get_feed_tags()} for a description of the return value
*
* @since 1.0
* @see http://simplepie.org/wiki/faq/supported_xml_namespaces
* @param string $namespace The URL of the XML namespace of the elements you're trying to access
* @param string $tag Tag name
* @return array
*/
public function get_channel_tags($namespace, $tag)
{
$type = $this->get_type();
if ($type & SIMPLEPIE_TYPE_ATOM_ALL)
{
if ($return = $this->get_feed_tags($namespace, $tag))
{
return $return;
}
}
if ($type & SIMPLEPIE_TYPE_RSS_10)
{
if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'channel'))
{
if (isset($channel[0]['child'][$namespace][$tag]))
{
return $channel[0]['child'][$namespace][$tag];
}
}
}
if ($type & SIMPLEPIE_TYPE_RSS_090)
{
if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'channel'))
{
if (isset($channel[0]['child'][$namespace][$tag]))
{
return $channel[0]['child'][$namespace][$tag];
}
}
}
if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
{
if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'channel'))
{
if (isset($channel[0]['child'][$namespace][$tag]))
{
return $channel[0]['child'][$namespace][$tag];
}
}
}
return null;
}
/**
* Get data for an channel-level element
*
* This method allows you to get access to ANY element/attribute in the
* image/logo section of the feed.
*
* See {@see SimplePie::get_feed_tags()} for a description of the return value
*
* @since 1.0
* @see http://simplepie.org/wiki/faq/supported_xml_namespaces
* @param string $namespace The URL of the XML namespace of the elements you're trying to access
* @param string $tag Tag name
* @return array
*/
public function get_image_tags($namespace, $tag)
{
$type = $this->get_type();
if ($type & SIMPLEPIE_TYPE_RSS_10)
{
if ($image = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'image'))
{
if (isset($image[0]['child'][$namespace][$tag]))
{
return $image[0]['child'][$namespace][$tag];
}
}
}
if ($type & SIMPLEPIE_TYPE_RSS_090)
{
if ($image = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'image'))
{
if (isset($image[0]['child'][$namespace][$tag]))
{
return $image[0]['child'][$namespace][$tag];
}
}
}
if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
{
if ($image = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'image'))
{
if (isset($image[0]['child'][$namespace][$tag]))
{
return $image[0]['child'][$namespace][$tag];
}
}
}
return null;
}
/**
* Get the base URL value from the feed
*
* Uses `<xml:base>` if available, otherwise uses the first link in the
* feed, or failing that, the URL of the feed itself.
*
* @see get_link
* @see subscribe_url
*
* @param array $element
* @return string
*/
public function get_base($element = array())
{
if (!($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION) && !empty($element['xml_base_explicit']) && isset($element['xml_base']))
{
return $element['xml_base'];
}
elseif ($this->get_link() !== null)
{
return $this->get_link();
}
return $this->subscribe_url();
}
/**
* Sanitize feed data
*
* @access private
* @see SimplePie_Sanitize::sanitize()
* @param string $data Data to sanitize
* @param int $type One of the SIMPLEPIE_CONSTRUCT_* constants
* @param string $base Base URL to resolve URLs against
* @return string Sanitized data
*/
public function sanitize($data, $type, $base = '')
{
try
{
return $this->sanitize->sanitize($data, $type, $base);
}
catch (SimplePie_Exception $e)
{
if (!$this->enable_exceptions)
{
$this->error = $e->getMessage();
$this->registry->call('Misc', 'error', array($this->error, E_USER_WARNING, $e->getFile(), $e->getLine()));
return '';
}
throw $e;
}
}
/**
* Get the title of the feed
*
* Uses `<atom:title>`, `<title>` or `<dc:title>`
*
* @since 1.0 (previously called `get_feed_title` since 0.8)
* @return string|null
*/
public function get_title()
{
if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'title'))
{
return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'title'))
{
return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
return null;
}
/**
* Get a category for the feed
*
* @since Unknown
* @param int $key The category that you want to return. Remember that arrays begin with 0, not 1
* @return SimplePie_Category|null
*/
public function get_category($key = 0)
{
$categories = $this->get_categories();
if (isset($categories[$key]))
{
return $categories[$key];
}
return null;
}
/**
* Get all categories for the feed
*
* Uses `<atom:category>`, `<category>` or `<dc:subject>`
*
* @since Unknown
* @return array|null List of {@see SimplePie_Category} objects
*/
public function get_categories()
{
$categories = array();
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'category') as $category)
{
$term = null;
$scheme = null;
$label = null;
if (isset($category['attribs']['']['term']))
{
$term = $this->sanitize($category['attribs']['']['term'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if (isset($category['attribs']['']['scheme']))
{
$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if (isset($category['attribs']['']['label']))
{
$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
}
$categories[] = $this->registry->create('Category', array($term, $scheme, $label));
}
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'category') as $category)
{
// This is really the label, but keep this as the term also for BC.
// Label will also work on retrieving because that falls back to term.
$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
if (isset($category['attribs']['']['domain']))
{
$scheme = $this->sanitize($category['attribs']['']['domain'], SIMPLEPIE_CONSTRUCT_TEXT);
}
else
{
$scheme = null;
}
$categories[] = $this->registry->create('Category', array($term, $scheme, null));
}
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'subject') as $category)
{
$categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
}
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'subject') as $category)
{
$categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
}
if (!empty($categories))
{
return array_unique($categories);
}
return null;
}
/**
* Get an author for the feed
*
* @since 1.1
* @param int $key The author that you want to return. Remember that arrays begin with 0, not 1
* @return SimplePie_Author|null
*/
public function get_author($key = 0)
{
$authors = $this->get_authors();
if (isset($authors[$key]))
{
return $authors[$key];
}
return null;
}
/**
* Get all authors for the feed
*
* Uses `<atom:author>`, `<author>`, `<dc:creator>` or `<itunes:author>`
*
* @since 1.1
* @return array|null List of {@see SimplePie_Author} objects
*/
public function get_authors()
{
$authors = array();
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author') as $author)
{
$name = null;
$uri = null;
$email = null;
if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
{
$name = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
{
$uri = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
}
if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
{
$email = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if ($name !== null || $email !== null || $uri !== null)
{
$authors[] = $this->registry->create('Author', array($name, $uri, $email));
}
}
if ($author = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'author'))
{
$name = null;
$url = null;
$email = null;
if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
{
$name = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
{
$url = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
}
if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
{
$email = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if ($name !== null || $email !== null || $url !== null)
{
$authors[] = $this->registry->create('Author', array($name, $url, $email));
}
}
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'creator') as $author)
{
$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
}
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'creator') as $author)
{
$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
}
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'author') as $author)
{
$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
}
if (!empty($authors))
{
return array_unique($authors);
}
return null;
}
/**
* Get a contributor for the feed
*
* @since 1.1
* @param int $key The contrbutor that you want to return. Remember that arrays begin with 0, not 1
* @return SimplePie_Author|null
*/
public function get_contributor($key = 0)
{
$contributors = $this->get_contributors();
if (isset($contributors[$key]))
{
return $contributors[$key];
}
return null;
}
/**
* Get all contributors for the feed
*
* Uses `<atom:contributor>`
*
* @since 1.1
* @return array|null List of {@see SimplePie_Author} objects
*/
public function get_contributors()
{
$contributors = array();
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'contributor') as $contributor)
{
$name = null;
$uri = null;
$email = null;
if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
{
$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
{
$uri = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
}
if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
{
$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if ($name !== null || $email !== null || $uri !== null)
{
$contributors[] = $this->registry->create('Author', array($name, $uri, $email));
}
}
foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'contributor') as $contributor)
{
$name = null;
$url = null;
$email = null;
if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
{
$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
{
$url = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
}
if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
{
$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
if ($name !== null || $email !== null || $url !== null)
{
$contributors[] = $this->registry->create('Author', array($name, $url, $email));
}
}
if (!empty($contributors))
{
return array_unique($contributors);
}
return null;
}
/**
* Get a single link for the feed
*
* @since 1.0 (previously called `get_feed_link` since Preview Release, `get_feed_permalink()` since 0.8)
* @param int $key The link that you want to return. Remember that arrays begin with 0, not 1
* @param string $rel The relationship of the link to return
* @return string|null Link URL
*/
public function get_link($key = 0, $rel = 'alternate')
{
$links = $this->get_links($rel);
if (isset($links[$key]))
{
return $links[$key];
}
return null;
}
/**
* Get the permalink for the item
*
* Returns the first link available with a relationship of "alternate".
* Identical to {@see get_link()} with key 0
*
* @see get_link
* @since 1.0 (previously called `get_feed_link` since Preview Release, `get_feed_permalink()` since 0.8)
* @internal Added for parity between the parent-level and the item/entry-level.
* @return string|null Link URL
*/
public function get_permalink()
{
return $this->get_link(0);
}
/**
* Get all links for the feed
*
* Uses `<atom:link>` or `<link>`
*
* @since Beta 2
* @param string $rel The relationship of links to return
* @return array|null Links found for the feed (strings)
*/
public function get_links($rel = 'alternate')
{
if (!isset($this->data['links']))
{
$this->data['links'] = array();
if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link'))
{
foreach ($links as $link)
{
if (isset($link['attribs']['']['href']))
{
$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
}
}
}
if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link'))
{
foreach ($links as $link)
{
if (isset($link['attribs']['']['href']))
{
$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
}
}
}
if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
{
$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
}
if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
{
$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
}
if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
{
$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
}
$keys = array_keys($this->data['links']);
foreach ($keys as $key)
{
if ($this->registry->call('Misc', 'is_isegment_nz_nc', array($key)))
{
if (isset($this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]))
{
$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] = array_merge($this->data['links'][$key], $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]);
$this->data['links'][$key] =& $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key];
}
else
{
$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] =& $this->data['links'][$key];
}
}
elseif (substr($key, 0, 41) === SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY)
{
$this->data['links'][substr($key, 41)] =& $this->data['links'][$key];
}
$this->data['links'][$key] = array_unique($this->data['links'][$key]);
}
}
if (isset($this->data['headers']['link']))
{
$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 $matches;
}
}
if (isset($this->data['links'][$rel]))
{
return $this->data['links'][$rel];
}
return null;
}
public function get_all_discovered_feeds()
{
return $this->all_discovered_feeds;
}
/**
* Get the content for the item
*
* Uses `<atom:subtitle>`, `<atom:tagline>`, `<description>`,
* `<dc:description>`, `<itunes:summary>` or `<itunes:subtitle>`
*
* @since 1.0 (previously called `get_feed_description()` since 0.8)
* @return string|null
*/
public function get_description()
{
if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'subtitle'))
{
return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'tagline'))
{
return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'description'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'description'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'description'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'description'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'description'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'summary'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'subtitle'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
}
return null;
}
/**
* Get the copyright info for the feed
*
* Uses `<atom:rights>`, `<atom:copyright>` or `<dc:rights>`
*
* @since 1.0 (previously called `get_feed_copyright()` since 0.8)
* @return string|null
*/
public function get_copyright()
{
if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'rights'))
{
return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'copyright'))
{
return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'copyright'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'rights'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'rights'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
return null;
}
/**
* Get the language for the feed
*
* Uses `<language>`, `<dc:language>`, or @xml_lang
*
* @since 1.0 (previously called `get_feed_language()` since 0.8)
* @return string|null
*/
public function get_language()
{
if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'language'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'language'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'language'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['xml_lang']))
{
return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['xml_lang']))
{
return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['xml_lang']))
{
return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif (isset($this->data['headers']['content-language']))
{
return $this->sanitize($this->data['headers']['content-language'], SIMPLEPIE_CONSTRUCT_TEXT);
}
return null;
}
/**
* Get the latitude coordinates for the item
*
* Compatible with the W3C WGS84 Basic Geo and GeoRSS specifications
*
* Uses `<geo:lat>` or `<georss:point>`
*
* @since 1.0
* @link http://www.w3.org/2003/01/geo/ W3C WGS84 Basic Geo
* @link http://www.georss.org/ GeoRSS
* @return string|null
*/
public function get_latitude()
{
if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lat'))
{
return (float) $return[0]['data'];
}
elseif (($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
{
return (float) $match[1];
}
return null;
}
/**
* Get the longitude coordinates for the feed
*
* Compatible with the W3C WGS84 Basic Geo and GeoRSS specifications
*
* Uses `<geo:long>`, `<geo:lon>` or `<georss:point>`
*
* @since 1.0
* @link http://www.w3.org/2003/01/geo/ W3C WGS84 Basic Geo
* @link http://www.georss.org/ GeoRSS
* @return string|null
*/
public function get_longitude()
{
if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'long'))
{
return (float) $return[0]['data'];
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lon'))
{
return (float) $return[0]['data'];
}
elseif (($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
{
return (float) $match[2];
}
return null;
}
/**
* Get the feed logo's title
*
* RSS 0.9.0, 1.0 and 2.0 feeds are allowed to have a "feed logo" title.
*
* Uses `<image><title>` or `<image><dc:title>`
*
* @return string|null
*/
public function get_image_title()
{
if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
return null;
}
/**
* Get the feed logo's URL
*
* RSS 0.9.0, 2.0, Atom 1.0, and feeds with iTunes RSS tags are allowed to
* have a "feed logo" URL. This points directly to the image itself.
*
* Uses `<itunes:image>`, `<atom:logo>`, `<atom:icon>`,
* `<image><title>` or `<image><dc:title>`
*
* @return string|null
*/
public function get_image_url()
{
if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'image'))
{
return $this->sanitize($return[0]['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI);
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'logo'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'url'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'url'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
return null;
}
/**
* Get the feed logo's link
*
* RSS 0.9.0, 1.0 and 2.0 feeds are allowed to have a "feed logo" link. This
* points to a human-readable page that the image should link to.
*
* Uses `<itunes:image>`, `<atom:logo>`, `<atom:icon>`,
* `<image><title>` or `<image><dc:title>`
*
* @return string|null
*/
public function get_image_link()
{
if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
return null;
}
/**
* Get the feed logo's link
*
* RSS 2.0 feeds are allowed to have a "feed logo" width.
*
* Uses `<image><width>` or defaults to 88.0 if no width is specified and
* the feed is an RSS 2.0 feed.
*
* @return int|float|null
*/
public function get_image_width()
{
if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'width'))
{
return round($return[0]['data']);
}
elseif ($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION && $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
{
return 88.0;
}
return null;
}
/**
* Get the feed logo's height
*
* RSS 2.0 feeds are allowed to have a "feed logo" height.
*
* Uses `<image><height>` or defaults to 31.0 if no height is specified and
* the feed is an RSS 2.0 feed.
*
* @return int|float|null
*/
public function get_image_height()
{
if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'height'))
{
return round($return[0]['data']);
}
elseif ($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION && $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
{
return 31.0;
}
return null;
}
/**
* Get the number of items in the feed
*
* This is well-suited for {@link http://php.net/for for()} loops with
* {@see get_item()}
*
* @param int $max Maximum value to return. 0 for no limit
* @return int Number of items in the feed
*/
public function get_item_quantity($max = 0)
{
$max = (int) $max;
$qty = count($this->get_items());
if ($max === 0)
{
return $qty;
}
return ($qty > $max) ? $max : $qty;
}
/**
* Get a single item from the feed
*
* This is better suited for {@link http://php.net/for for()} loops, whereas
* {@see get_items()} is better suited for
* {@link http://php.net/foreach foreach()} loops.
*
* @see get_item_quantity()
* @since Beta 2
* @param int $key The item that you want to return. Remember that arrays begin with 0, not 1
* @return SimplePie_Item|null
*/
public function get_item($key = 0)
{
$items = $this->get_items();
if (isset($items[$key]))
{
return $items[$key];
}
return null;
}
/**
* Get all items from the feed
*
* This is better suited for {@link http://php.net/for for()} loops, whereas
* {@see get_items()} is better suited for
* {@link http://php.net/foreach foreach()} loops.
*
* @see get_item_quantity
* @since Beta 2
* @param int $start Index to start at
* @param int $end Number of items to return. 0 for all items after `$start`
* @return SimplePie_Item[]|null List of {@see SimplePie_Item} objects
*/
public function get_items($start = 0, $end = 0)
{
if (!isset($this->data['items']))
{
if (!empty($this->multifeed_objects))
{
$this->data['items'] = SimplePie::merge_items($this->multifeed_objects, $start, $end, $this->item_limit);
if (empty($this->data['items']))
{
return array();
}
return $this->data['items'];
}
$this->data['items'] = array();
if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'entry'))
{
$keys = array_keys($items);
foreach ($keys as $key)
{
$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
}
}
if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'entry'))
{
$keys = array_keys($items);
foreach ($keys as $key)
{
$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
}
}
if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'item'))
{
$keys = array_keys($items);
foreach ($keys as $key)
{
$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
}
}
if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'item'))
{
$keys = array_keys($items);
foreach ($keys as $key)
{
$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
}
}
if ($items = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'item'))
{
$keys = array_keys($items);
foreach ($keys as $key)
{
$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
}
}
}
if (empty($this->data['items']))
{
return array();
}
if ($this->order_by_date)
{
if (!isset($this->data['ordered_items']))
{
$this->data['ordered_items'] = $this->data['items'];
usort($this->data['ordered_items'], array(get_class($this), 'sort_items'));
}
$items = $this->data['ordered_items'];
}
else
{
$items = $this->data['items'];
}
// Slice the data as desired
if ($end === 0)
{
return array_slice($items, $start);
}
return array_slice($items, $start, $end);
}
/**
* Set the favicon handler
*
* @deprecated Use your own favicon handling instead
*/
public function set_favicon_handler($page = false, $qs = 'i')
{
$level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
trigger_error('Favicon handling has been removed, please use your own handling', $level);
return false;
}
/**
* Get the favicon for the current feed
*
* @deprecated Use your own favicon handling instead
*/
public function get_favicon()
{
$level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
trigger_error('Favicon handling has been removed, please use your own handling', $level);
if (($url = $this->get_link()) !== null)
{
return 'https://www.google.com/s2/favicons?domain=' . urlencode($url);
}
return false;
}
/**
* Magic method handler
*
* @param string $method Method name
* @param array $args Arguments to the method
* @return mixed
*/
public function __call($method, $args)
{
if (strpos($method, 'subscribe_') === 0)
{
$level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
trigger_error('subscribe_*() has been deprecated, implement the callback yourself', $level);
return '';
}
if ($method === 'enable_xml_dump')
{
$level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
trigger_error('enable_xml_dump() has been deprecated, use get_raw_data() instead', $level);
return false;
}
$class = get_class($this);
$trace = debug_backtrace(); // phpcs:ignore PHPCompatibility.FunctionUse.ArgumentFunctionsReportCurrentValue.NeedsInspection
$file = $trace[0]['file'];
$line = $trace[0]['line'];
trigger_error("Call to undefined method $class::$method() in $file on line $line", E_USER_ERROR);
}
/**
* Sorting callback for items
*
* @access private
* @param SimplePie $a
* @param SimplePie $b
* @return boolean
*/
public static function sort_items($a, $b)
{
$a_date = $a->get_date('U');
$b_date = $b->get_date('U');
if ($a_date && $b_date) {
return $a_date > $b_date ? -1 : 1;
}
// Sort items without dates to the top.
if ($a_date) {
return 1;
}
if ($b_date) {
return -1;
}
return 0;
}
/**
* Merge items from several feeds into one
*
* If you're merging multiple feeds together, they need to all have dates
* for the items or else SimplePie will refuse to sort them.
*
* @link http://simplepie.org/wiki/tutorial/sort_multiple_feeds_by_time_and_date#if_feeds_require_separate_per-feed_settings
* @param array $urls List of SimplePie feed objects to merge
* @param int $start Starting item
* @param int $end Number of items to return
* @param int $limit Maximum number of items per feed
* @return array
*/
public static function merge_items($urls, $start = 0, $end = 0, $limit = 0)
{
if (is_array($urls) && sizeof($urls) > 0)
{
$items = array();
foreach ($urls as $arg)
{
if ($arg instanceof SimplePie)
{
$items = array_merge($items, $arg->get_items(0, $limit));
}
else
{
trigger_error('Arguments must be SimplePie objects', E_USER_WARNING);
}
}
usort($items, array(get_class($urls[0]), 'sort_items'));
if ($end === 0)
{
return array_slice($items, $start);
}
return array_slice($items, $start, $end);
}
trigger_error('Cannot merge zero SimplePie objects', E_USER_WARNING);
return array();
}
/**
* Store PubSubHubbub links as headers
*
* There is no way to find PuSH links in the body of a microformats feed,
* so they are added to the headers when found, to be used later by get_links.
* @param SimplePie_File $file
* @param string $hub
* @param string $self
*/
private function store_links(&$file, $hub, $self) {
if (isset($file->headers['link']['hub']) ||
(isset($file->headers['link']) &&
preg_match('/rel=hub/', $file->headers['link'])))
{
return;
}
if ($hub)
{
if (isset($file->headers['link']))
{
if ($file->headers['link'] !== '')
{
$file->headers['link'] = ', ';
}
}
else
{
$file->headers['link'] = '';
}
$file->headers['link'] .= '<'.$hub.'>; rel=hub';
if ($self)
{
$file->headers['link'] .= ', <'.$self.'>; rel=self';
}
}
}
}
endif;
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