Source.php 0000666 00000050073 15213260146 0006526 0 ustar 00 `
*
* Used by {@see SimplePie_Item::get_source()}
*
* This class can be overloaded with {@see SimplePie::set_source_class()}
*
* @package SimplePie
* @subpackage API
*/
class SimplePie_Source
{
var $item;
var $data = array();
protected $registry;
public function __construct($item, $data)
{
$this->item = $item;
$this->data = $data;
}
public function set_registry(SimplePie_Registry $registry)
{
$this->registry = $registry;
}
public function __toString()
{
return md5(serialize($this->data));
}
public function get_source_tags($namespace, $tag)
{
if (isset($this->data['child'][$namespace][$tag]))
{
return $this->data['child'][$namespace][$tag];
}
else
{
return null;
}
}
public function get_base($element = array())
{
return $this->item->get_base($element);
}
public function sanitize($data, $type, $base = '')
{
return $this->item->sanitize($data, $type, $base);
}
public function get_item()
{
return $this->item;
}
public function get_title()
{
if ($return = $this->get_source_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_source_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_source_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_source_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_source_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_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
else
{
return null;
}
}
public function get_category($key = 0)
{
$categories = $this->get_categories();
if (isset($categories[$key]))
{
return $categories[$key];
}
else
{
return null;
}
}
public function get_categories()
{
$categories = array();
foreach ((array) $this->get_source_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_source_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_source_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_source_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($categories);
}
else
{
return null;
}
}
public function get_author($key = 0)
{
$authors = $this->get_authors();
if (isset($authors[$key]))
{
return $authors[$key];
}
else
{
return null;
}
}
public function get_authors()
{
$authors = array();
foreach ((array) $this->get_source_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_source_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_source_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_source_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_source_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($authors);
}
else
{
return null;
}
}
public function get_contributor($key = 0)
{
$contributors = $this->get_contributors();
if (isset($contributors[$key]))
{
return $contributors[$key];
}
else
{
return null;
}
}
public function get_contributors()
{
$contributors = array();
foreach ((array) $this->get_source_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_source_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($contributors);
}
else
{
return null;
}
}
public function get_link($key = 0, $rel = 'alternate')
{
$links = $this->get_links($rel);
if (isset($links[$key]))
{
return $links[$key];
}
else
{
return null;
}
}
/**
* Added for parity between the parent-level and the item/entry-level.
*/
public function get_permalink()
{
return $this->get_link(0);
}
public function get_links($rel = 'alternate')
{
if (!isset($this->data['links']))
{
$this->data['links'] = array();
if ($links = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link'))
{
foreach ($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 = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link'))
{
foreach ($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_source_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_source_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_source_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($this->data['links'][$rel]))
{
return $this->data['links'][$rel];
}
else
{
return null;
}
}
public function get_description()
{
if ($return = $this->get_source_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_source_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_source_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_source_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_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'description'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'description'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'description'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'summary'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'subtitle'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
}
else
{
return null;
}
}
public function get_copyright()
{
if ($return = $this->get_source_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_source_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_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'copyright'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'rights'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'rights'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
else
{
return null;
}
}
public function get_language()
{
if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'language'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'language'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'language'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
}
elseif (isset($this->data['xml_lang']))
{
return $this->sanitize($this->data['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
}
else
{
return null;
}
}
public function get_latitude()
{
if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lat'))
{
return (float) $return[0]['data'];
}
elseif (($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
{
return (float) $match[1];
}
else
{
return null;
}
}
public function get_longitude()
{
if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'long'))
{
return (float) $return[0]['data'];
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lon'))
{
return (float) $return[0]['data'];
}
elseif (($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
{
return (float) $match[2];
}
else
{
return null;
}
}
public function get_image_url()
{
if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'image'))
{
return $this->sanitize($return[0]['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI);
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'logo'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
{
return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
}
else
{
return null;
}
}
}
XML/Declaration/Parser.php 0000666 00000015755 15213260146 0011417 0 ustar 00 data = $data;
$this->data_length = strlen($this->data);
}
/**
* Parse the input data
*
* @access public
* @return bool true on success, false on failure
*/
public function parse()
{
while ($this->state && $this->state !== 'emit' && $this->has_data())
{
$state = $this->state;
$this->$state();
}
$this->data = '';
if ($this->state === 'emit')
{
return true;
}
else
{
$this->version = '';
$this->encoding = '';
$this->standalone = '';
return false;
}
}
/**
* Check whether there is data beyond the pointer
*
* @access private
* @return bool true if there is further data, false if not
*/
public function has_data()
{
return (bool) ($this->position < $this->data_length);
}
/**
* Advance past any whitespace
*
* @return int Number of whitespace characters passed
*/
public function skip_whitespace()
{
$whitespace = strspn($this->data, "\x09\x0A\x0D\x20", $this->position);
$this->position += $whitespace;
return $whitespace;
}
/**
* Read value
*/
public function get_value()
{
$quote = substr($this->data, $this->position, 1);
if ($quote === '"' || $quote === "'")
{
$this->position++;
$len = strcspn($this->data, $quote, $this->position);
if ($this->has_data())
{
$value = substr($this->data, $this->position, $len);
$this->position += $len + 1;
return $value;
}
}
return false;
}
public function before_version_name()
{
if ($this->skip_whitespace())
{
$this->state = 'version_name';
}
else
{
$this->state = false;
}
}
public function version_name()
{
if (substr($this->data, $this->position, 7) === 'version')
{
$this->position += 7;
$this->skip_whitespace();
$this->state = 'version_equals';
}
else
{
$this->state = false;
}
}
public function version_equals()
{
if (substr($this->data, $this->position, 1) === '=')
{
$this->position++;
$this->skip_whitespace();
$this->state = 'version_value';
}
else
{
$this->state = false;
}
}
public function version_value()
{
if ($this->version = $this->get_value())
{
$this->skip_whitespace();
if ($this->has_data())
{
$this->state = 'encoding_name';
}
else
{
$this->state = 'emit';
}
}
else
{
$this->state = false;
}
}
public function encoding_name()
{
if (substr($this->data, $this->position, 8) === 'encoding')
{
$this->position += 8;
$this->skip_whitespace();
$this->state = 'encoding_equals';
}
else
{
$this->state = 'standalone_name';
}
}
public function encoding_equals()
{
if (substr($this->data, $this->position, 1) === '=')
{
$this->position++;
$this->skip_whitespace();
$this->state = 'encoding_value';
}
else
{
$this->state = false;
}
}
public function encoding_value()
{
if ($this->encoding = $this->get_value())
{
$this->skip_whitespace();
if ($this->has_data())
{
$this->state = 'standalone_name';
}
else
{
$this->state = 'emit';
}
}
else
{
$this->state = false;
}
}
public function standalone_name()
{
if (substr($this->data, $this->position, 10) === 'standalone')
{
$this->position += 10;
$this->skip_whitespace();
$this->state = 'standalone_equals';
}
else
{
$this->state = false;
}
}
public function standalone_equals()
{
if (substr($this->data, $this->position, 1) === '=')
{
$this->position++;
$this->skip_whitespace();
$this->state = 'standalone_value';
}
else
{
$this->state = false;
}
}
public function standalone_value()
{
if ($standalone = $this->get_value())
{
switch ($standalone)
{
case 'yes':
$this->standalone = true;
break;
case 'no':
$this->standalone = false;
break;
default:
$this->state = false;
return;
}
$this->skip_whitespace();
if ($this->has_data())
{
$this->state = false;
}
else
{
$this->state = 'emit';
}
}
else
{
$this->state = false;
}
}
}
Sanitize.php 0000666 00000036522 15213260146 0007057 0 ustar 00 set_url_replacements(null);
}
public function remove_div($enable = true)
{
$this->remove_div = (bool) $enable;
}
public function set_image_handler($page = false)
{
if ($page)
{
$this->image_handler = (string) $page;
}
else
{
$this->image_handler = false;
}
}
public function set_registry(SimplePie_Registry $registry)
{
$this->registry = $registry;
}
public function pass_cache_data($enable_cache = true, $cache_location = './cache', $cache_name_function = 'md5', $cache_class = 'SimplePie_Cache')
{
if (isset($enable_cache))
{
$this->enable_cache = (bool) $enable_cache;
}
if ($cache_location)
{
$this->cache_location = (string) $cache_location;
}
if ($cache_name_function)
{
$this->cache_name_function = (string) $cache_name_function;
}
}
public function pass_file_data($file_class = 'SimplePie_File', $timeout = 10, $useragent = '', $force_fsockopen = false)
{
if ($timeout)
{
$this->timeout = (string) $timeout;
}
if ($useragent)
{
$this->useragent = (string) $useragent;
}
if ($force_fsockopen)
{
$this->force_fsockopen = (string) $force_fsockopen;
}
}
public function strip_htmltags($tags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style'))
{
if ($tags)
{
if (is_array($tags))
{
$this->strip_htmltags = $tags;
}
else
{
$this->strip_htmltags = explode(',', $tags);
}
}
else
{
$this->strip_htmltags = false;
}
}
public function encode_instead_of_strip($encode = false)
{
$this->encode_instead_of_strip = (bool) $encode;
}
public function strip_attributes($attribs = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur', 'lowsrc', 'dynsrc'))
{
if ($attribs)
{
if (is_array($attribs))
{
$this->strip_attributes = $attribs;
}
else
{
$this->strip_attributes = explode(',', $attribs);
}
}
else
{
$this->strip_attributes = false;
}
}
public function strip_comments($strip = false)
{
$this->strip_comments = (bool) $strip;
}
public function set_output_encoding($encoding = 'UTF-8')
{
$this->output_encoding = (string) $encoding;
}
/**
* 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)
{
if ($element_attribute === null)
{
$element_attribute = array(
'a' => 'href',
'area' => 'href',
'blockquote' => 'cite',
'del' => 'cite',
'form' => 'action',
'img' => array(
'longdesc',
'src'
),
'input' => 'src',
'ins' => 'cite',
'q' => 'cite'
);
}
$this->replace_url_attributes = (array) $element_attribute;
}
public function sanitize($data, $type, $base = '')
{
$data = trim($data);
if ($data !== '' || $type & SIMPLEPIE_CONSTRUCT_IRI)
{
if ($type & SIMPLEPIE_CONSTRUCT_MAYBE_HTML)
{
if (preg_match('/(&(#(x[0-9a-fA-F]+|[0-9]+)|[a-zA-Z0-9]+)|<\/[A-Za-z][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E]*' . SIMPLEPIE_PCRE_HTML_ATTRIBUTE . '>)/', $data))
{
$type |= SIMPLEPIE_CONSTRUCT_HTML;
}
else
{
$type |= SIMPLEPIE_CONSTRUCT_TEXT;
}
}
if ($type & SIMPLEPIE_CONSTRUCT_BASE64)
{
$data = base64_decode($data);
}
if ($type & (SIMPLEPIE_CONSTRUCT_HTML | SIMPLEPIE_CONSTRUCT_XHTML))
{
if (!class_exists('DOMDocument'))
{
$this->registry->call('Misc', 'error', array('DOMDocument not found, unable to use sanitizer', E_USER_WARNING, __FILE__, __LINE__));
return '';
}
$document = new DOMDocument();
$document->encoding = 'UTF-8';
$data = $this->preprocess($data, $type);
set_error_handler(array('SimplePie_Misc', 'silence_errors'));
$document->loadHTML($data);
restore_error_handler();
// Strip comments
if ($this->strip_comments)
{
$xpath = new DOMXPath($document);
$comments = $xpath->query('//comment()');
foreach ($comments as $comment)
{
$comment->parentNode->removeChild($comment);
}
}
// Strip out HTML tags and attributes that might cause various security problems.
// Based on recommendations by Mark Pilgrim at:
// http://diveintomark.org/archives/2003/06/12/how_to_consume_rss_safely
if ($this->strip_htmltags)
{
foreach ($this->strip_htmltags as $tag)
{
$this->strip_tag($tag, $document, $type);
}
}
if ($this->strip_attributes)
{
foreach ($this->strip_attributes as $attrib)
{
$this->strip_attr($attrib, $document);
}
}
// Replace relative URLs
$this->base = $base;
foreach ($this->replace_url_attributes as $element => $attributes)
{
$this->replace_urls($document, $element, $attributes);
}
// If image handling (caching, etc.) is enabled, cache and rewrite all the image tags.
if (isset($this->image_handler) && ((string) $this->image_handler) !== '' && $this->enable_cache)
{
$images = $document->getElementsByTagName('img');
foreach ($images as $img)
{
if ($img->hasAttribute('src'))
{
$image_url = call_user_func($this->cache_name_function, $img->getAttribute('src'));
$cache = $this->registry->call('Cache', 'get_handler', array($this->cache_location, $image_url, 'spi'));
if ($cache->load())
{
$img->setAttribute('src', $this->image_handler . $image_url);
}
else
{
$file = $this->registry->create('File', array($img->getAttribute('src'), $this->timeout, 5, array('X-FORWARDED-FOR' => $_SERVER['REMOTE_ADDR']), $this->useragent, $this->force_fsockopen));
$headers = $file->headers;
if ($file->success && ($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300)))
{
if ($cache->save(array('headers' => $file->headers, 'body' => $file->body)))
{
$img->setAttribute('src', $this->image_handler . $image_url);
}
else
{
trigger_error("$this->cache_location is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
}
}
}
}
}
}
// Remove the DOCTYPE
// Seems to cause segfaulting if we don't do this
if ($document->firstChild instanceof DOMDocumentType)
{
$document->removeChild($document->firstChild);
}
// Move everything from the body to the root
$real_body = $document->getElementsByTagName('body')->item(0)->childNodes->item(0);
$document->replaceChild($real_body, $document->firstChild);
// Finally, convert to a HTML string
$data = trim($document->saveHTML());
if ($this->remove_div)
{
$data = preg_replace('/^
/', '', $data);
$data = preg_replace('/<\/div>$/', '', $data);
}
else
{
$data = preg_replace('/^
/', '
', $data);
}
}
if ($type & SIMPLEPIE_CONSTRUCT_IRI)
{
$absolute = $this->registry->call('Misc', 'absolutize_url', array($data, $base));
if ($absolute !== false)
{
$data = $absolute;
}
}
if ($type & (SIMPLEPIE_CONSTRUCT_TEXT | SIMPLEPIE_CONSTRUCT_IRI))
{
$data = htmlspecialchars($data, ENT_COMPAT, 'UTF-8');
}
if ($this->output_encoding !== 'UTF-8')
{
$data = $this->registry->call('Misc', 'change_encoding', array($data, 'UTF-8', $this->output_encoding));
}
}
return $data;
}
protected function preprocess($html, $type)
{
$ret = '';
if ($type & ~SIMPLEPIE_CONSTRUCT_XHTML)
{
// Atom XHTML constructs are wrapped with a div by default
// Note: No protection if $html contains a stray
!
$html = '
' . $html . '
';
$ret .= '';
$content_type = 'text/html';
}
else
{
$ret .= '';
$content_type = 'application/xhtml+xml';
}
$ret .= '';
$ret .= '
';
$ret .= '' . $html . '';
return $ret;
}
public function replace_urls($document, $tag, $attributes)
{
if (!is_array($attributes))
{
$attributes = array($attributes);
}
if (!is_array($this->strip_htmltags) || !in_array($tag, $this->strip_htmltags))
{
$elements = $document->getElementsByTagName($tag);
foreach ($elements as $element)
{
foreach ($attributes as $attribute)
{
if ($element->hasAttribute($attribute))
{
$value = $this->registry->call('Misc', 'absolutize_url', array($element->getAttribute($attribute), $this->base));
if ($value !== false)
{
$element->setAttribute($attribute, $value);
}
}
}
}
}
}
public function do_strip_htmltags($match)
{
if ($this->encode_instead_of_strip)
{
if (isset($match[4]) && !in_array(strtolower($match[1]), array('script', 'style')))
{
$match[1] = htmlspecialchars($match[1], ENT_COMPAT, 'UTF-8');
$match[2] = htmlspecialchars($match[2], ENT_COMPAT, 'UTF-8');
return "<$match[1]$match[2]>$match[3]</$match[1]>";
}
else
{
return htmlspecialchars($match[0], ENT_COMPAT, 'UTF-8');
}
}
elseif (isset($match[4]) && !in_array(strtolower($match[1]), array('script', 'style')))
{
return $match[4];
}
else
{
return '';
}
}
protected function strip_tag($tag, $document, $type)
{
$xpath = new DOMXPath($document);
$elements = $xpath->query('body//' . $tag);
if ($this->encode_instead_of_strip)
{
foreach ($elements as $element)
{
$fragment = $document->createDocumentFragment();
// For elements which aren't script or style, include the tag itself
if (!in_array($tag, array('script', 'style')))
{
$text = '<' . $tag;
if ($element->hasAttributes())
{
$attrs = array();
foreach ($element->attributes as $name => $attr)
{
$value = $attr->value;
// In XHTML, empty values should never exist, so we repeat the value
if (empty($value) && ($type & SIMPLEPIE_CONSTRUCT_XHTML))
{
$value = $name;
}
// For HTML, empty is fine
elseif (empty($value) && ($type & SIMPLEPIE_CONSTRUCT_HTML))
{
$attrs[] = $name;
continue;
}
// Standard attribute text
$attrs[] = $name . '="' . $attr->value . '"';
}
$text .= ' ' . implode(' ', $attrs);
}
$text .= '>';
$fragment->appendChild(new DOMText($text));
}
$number = $element->childNodes->length;
for ($i = $number; $i > 0; $i--)
{
$child = $element->childNodes->item(0);
$fragment->appendChild($child);
}
if (!in_array($tag, array('script', 'style')))
{
$fragment->appendChild(new DOMText('' . $tag . '>'));
}
$element->parentNode->replaceChild($fragment, $element);
}
return;
}
elseif (in_array($tag, array('script', 'style')))
{
foreach ($elements as $element)
{
$element->parentNode->removeChild($element);
}
return;
}
else
{
foreach ($elements as $element)
{
$fragment = $document->createDocumentFragment();
$number = $element->childNodes->length;
for ($i = $number; $i > 0; $i--)
{
$child = $element->childNodes->item(0);
$fragment->appendChild($child);
}
$element->parentNode->replaceChild($fragment, $element);
}
}
}
protected function strip_attr($attrib, $document)
{
$xpath = new DOMXPath($document);
$elements = $xpath->query('//*[@' . $attrib . ']');
foreach ($elements as $element)
{
$element->removeAttribute($attrib);
}
}
}
Exception.php 0000666 00000004213 15213260146 0007217 0 ustar 00 encode($parsed['authority']), $parsed['path'], $parsed['query'], $parsed['fragment']);
}
$this->url = $url;
$this->useragent = $useragent;
if (preg_match('/^http(s)?:\/\//i', $url))
{
if ($useragent === null)
{
$useragent = ini_get('user_agent');
$this->useragent = $useragent;
}
if (!is_array($headers))
{
$headers = array();
}
if (!$force_fsockopen && function_exists('curl_exec'))
{
$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
$fp = curl_init();
$headers2 = array();
foreach ($headers as $key => $value)
{
$headers2[] = "$key: $value";
}
if (version_compare(SimplePie_Misc::get_curl_version(), '7.10.5', '>='))
{
curl_setopt($fp, CURLOPT_ENCODING, '');
}
curl_setopt($fp, CURLOPT_URL, $url);
curl_setopt($fp, CURLOPT_HEADER, 1);
curl_setopt($fp, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($fp, CURLOPT_TIMEOUT, $timeout);
curl_setopt($fp, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($fp, CURLOPT_REFERER, $url);
curl_setopt($fp, CURLOPT_USERAGENT, $useragent);
curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
if (!ini_get('open_basedir') && !ini_get('safe_mode') && version_compare(SimplePie_Misc::get_curl_version(), '7.15.2', '>='))
{
curl_setopt($fp, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($fp, CURLOPT_MAXREDIRS, $redirects);
}
$this->headers = curl_exec($fp);
if (curl_errno($fp) === 23 || curl_errno($fp) === 61)
{
curl_setopt($fp, CURLOPT_ENCODING, 'none');
$this->headers = curl_exec($fp);
}
if (curl_errno($fp))
{
$this->error = 'cURL error ' . curl_errno($fp) . ': ' . curl_error($fp);
$this->success = false;
}
else
{
$info = curl_getinfo($fp);
curl_close($fp);
$this->headers = explode("\r\n\r\n", $this->headers, $info['redirect_count'] + 1);
$this->headers = array_pop($this->headers);
$parser = new SimplePie_HTTP_Parser($this->headers);
if ($parser->parse())
{
$this->headers = $parser->headers;
$this->body = $parser->body;
$this->status_code = $parser->status_code;
if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
{
$this->redirects++;
$location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
}
}
}
}
else
{
$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_FSOCKOPEN;
$url_parts = parse_url($url);
$socket_host = $url_parts['host'];
if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https')
{
$socket_host = "ssl://$url_parts[host]";
$url_parts['port'] = 443;
}
if (!isset($url_parts['port']))
{
$url_parts['port'] = 80;
}
$fp = @fsockopen($socket_host, $url_parts['port'], $errno, $errstr, $timeout);
if (!$fp)
{
$this->error = 'fsockopen error: ' . $errstr;
$this->success = false;
}
else
{
stream_set_timeout($fp, $timeout);
if (isset($url_parts['path']))
{
if (isset($url_parts['query']))
{
$get = "$url_parts[path]?$url_parts[query]";
}
else
{
$get = $url_parts['path'];
}
}
else
{
$get = '/';
}
$out = "GET $get HTTP/1.1\r\n";
$out .= "Host: $url_parts[host]\r\n";
$out .= "User-Agent: $useragent\r\n";
if (extension_loaded('zlib'))
{
$out .= "Accept-Encoding: x-gzip,gzip,deflate\r\n";
}
if (isset($url_parts['user']) && isset($url_parts['pass']))
{
$out .= "Authorization: Basic " . base64_encode("$url_parts[user]:$url_parts[pass]") . "\r\n";
}
foreach ($headers as $key => $value)
{
$out .= "$key: $value\r\n";
}
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
$info = stream_get_meta_data($fp);
$this->headers = '';
while (!$info['eof'] && !$info['timed_out'])
{
$this->headers .= fread($fp, 1160);
$info = stream_get_meta_data($fp);
}
if (!$info['timed_out'])
{
$parser = new SimplePie_HTTP_Parser($this->headers);
if ($parser->parse())
{
$this->headers = $parser->headers;
$this->body = $parser->body;
$this->status_code = $parser->status_code;
if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
{
$this->redirects++;
$location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
}
if (isset($this->headers['content-encoding']))
{
// Hey, we act dumb elsewhere, so let's do that here too
switch (strtolower(trim($this->headers['content-encoding'], "\x09\x0A\x0D\x20")))
{
case 'gzip':
case 'x-gzip':
$decoder = new SimplePie_gzdecode($this->body);
if (!$decoder->parse())
{
$this->error = 'Unable to decode HTTP "gzip" stream';
$this->success = false;
}
else
{
$this->body = $decoder->data;
}
break;
case 'deflate':
if (($decompressed = gzinflate($this->body)) !== false)
{
$this->body = $decompressed;
}
else if (($decompressed = gzuncompress($this->body)) !== false)
{
$this->body = $decompressed;
}
else if (function_exists('gzdecode') && ($decompressed = gzdecode($this->body)) !== false)
{
$this->body = $decompressed;
}
else
{
$this->error = 'Unable to decode HTTP "deflate" stream';
$this->success = false;
}
break;
default:
$this->error = 'Unknown content coding';
$this->success = false;
}
}
}
}
else
{
$this->error = 'fsocket timed out';
$this->success = false;
}
fclose($fp);
}
}
}
else
{
$this->method = SIMPLEPIE_FILE_SOURCE_LOCAL | SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS;
if (!$this->body = file_get_contents($url))
{
$this->error = 'file_get_contents could not read the file';
$this->success = false;
}
}
}
}
gzdecode.php 0000666 00000020574 15213260146 0007055 0 ustar 00 compressed_data = $data;
$this->compressed_size = strlen($data);
}
/**
* Decode the GZIP stream
*
* @return bool Successfulness
*/
public function parse()
{
if ($this->compressed_size >= $this->min_compressed_size)
{
// Check ID1, ID2, and CM
if (substr($this->compressed_data, 0, 3) !== "\x1F\x8B\x08")
{
return false;
}
// Get the FLG (FLaGs)
$this->flags = ord($this->compressed_data[3]);
// FLG bits above (1 << 4) are reserved
if ($this->flags > 0x1F)
{
return false;
}
// Advance the pointer after the above
$this->position += 4;
// MTIME
$mtime = substr($this->compressed_data, $this->position, 4);
// Reverse the string if we're on a big-endian arch because l is the only signed long and is machine endianness
if (current(unpack('S', "\x00\x01")) === 1)
{
$mtime = strrev($mtime);
}
$this->MTIME = current(unpack('l', $mtime));
$this->position += 4;
// Get the XFL (eXtra FLags)
$this->XFL = ord($this->compressed_data[$this->position++]);
// Get the OS (Operating System)
$this->OS = ord($this->compressed_data[$this->position++]);
// Parse the FEXTRA
if ($this->flags & 4)
{
// Read subfield IDs
$this->SI1 = $this->compressed_data[$this->position++];
$this->SI2 = $this->compressed_data[$this->position++];
// SI2 set to zero is reserved for future use
if ($this->SI2 === "\x00")
{
return false;
}
// Get the length of the extra field
$len = current(unpack('v', substr($this->compressed_data, $this->position, 2)));
$this->position += 2;
// Check the length of the string is still valid
$this->min_compressed_size += $len + 4;
if ($this->compressed_size >= $this->min_compressed_size)
{
// Set the extra field to the given data
$this->extra_field = substr($this->compressed_data, $this->position, $len);
$this->position += $len;
}
else
{
return false;
}
}
// Parse the FNAME
if ($this->flags & 8)
{
// Get the length of the filename
$len = strcspn($this->compressed_data, "\x00", $this->position);
// Check the length of the string is still valid
$this->min_compressed_size += $len + 1;
if ($this->compressed_size >= $this->min_compressed_size)
{
// Set the original filename to the given string
$this->filename = substr($this->compressed_data, $this->position, $len);
$this->position += $len + 1;
}
else
{
return false;
}
}
// Parse the FCOMMENT
if ($this->flags & 16)
{
// Get the length of the comment
$len = strcspn($this->compressed_data, "\x00", $this->position);
// Check the length of the string is still valid
$this->min_compressed_size += $len + 1;
if ($this->compressed_size >= $this->min_compressed_size)
{
// Set the original comment to the given string
$this->comment = substr($this->compressed_data, $this->position, $len);
$this->position += $len + 1;
}
else
{
return false;
}
}
// Parse the FHCRC
if ($this->flags & 2)
{
// Check the length of the string is still valid
$this->min_compressed_size += $len + 2;
if ($this->compressed_size >= $this->min_compressed_size)
{
// Read the CRC
$crc = current(unpack('v', substr($this->compressed_data, $this->position, 2)));
// Check the CRC matches
if ((crc32(substr($this->compressed_data, 0, $this->position)) & 0xFFFF) === $crc)
{
$this->position += 2;
}
else
{
return false;
}
}
else
{
return false;
}
}
// Decompress the actual data
if (($this->data = gzinflate(substr($this->compressed_data, $this->position, -8))) === false)
{
return false;
}
else
{
$this->position = $this->compressed_size - 8;
}
// Check CRC of data
$crc = current(unpack('V', substr($this->compressed_data, $this->position, 4)));
$this->position += 4;
/*if (extension_loaded('hash') && sprintf('%u', current(unpack('V', hash('crc32b', $this->data)))) !== sprintf('%u', $crc))
{
return false;
}*/
// Check ISIZE of data
$isize = current(unpack('V', substr($this->compressed_data, $this->position, 4)));
$this->position += 4;
if (sprintf('%u', strlen($this->data) & 0xFFFFFFFF) !== sprintf('%u', $isize))
{
return false;
}
// Wow, against all odds, we've actually got a valid gzip string
return true;
}
else
{
return false;
}
}
}
Author.php 0000666 00000007010 15213260146 0006521 0 ustar 00 name = $name;
$this->link = $link;
$this->email = $email;
}
/**
* String-ified version
*
* @return string
*/
public function __toString()
{
// There is no $this->data here
return md5(serialize($this));
}
/**
* Author's name
*
* @return string|null
*/
public function get_name()
{
if ($this->name !== null)
{
return $this->name;
}
else
{
return null;
}
}
/**
* Author's link
*
* @return string|null
*/
public function get_link()
{
if ($this->link !== null)
{
return $this->link;
}
else
{
return null;
}
}
/**
* Author's email address
*
* @return string|null
*/
public function get_email()
{
if ($this->email !== null)
{
return $this->email;
}
else
{
return null;
}
}
}
IRI.php 0000666 00000067307 15213260146 0005721 0 ustar 00 array(
'port' => 674
),
'dict' => array(
'port' => 2628
),
'file' => array(
'ihost' => 'localhost'
),
'http' => array(
'port' => 80,
'ipath' => '/'
),
'https' => array(
'port' => 443,
'ipath' => '/'
),
);
/**
* Return the entire IRI when you try and read the object as a string
*
* @return string
*/
public function __toString()
{
return $this->get_iri();
}
/**
* Overload __set() to provide access via properties
*
* @param string $name Property name
* @param mixed $value Property value
*/
public function __set($name, $value)
{
if (method_exists($this, 'set_' . $name))
{
call_user_func(array($this, 'set_' . $name), $value);
}
elseif (
$name === 'iauthority'
|| $name === 'iuserinfo'
|| $name === 'ihost'
|| $name === 'ipath'
|| $name === 'iquery'
|| $name === 'ifragment'
)
{
call_user_func(array($this, 'set_' . substr($name, 1)), $value);
}
}
/**
* Overload __get() to provide access via properties
*
* @param string $name Property name
* @return mixed
*/
public function __get($name)
{
// isset() returns false for null, we don't want to do that
// Also why we use array_key_exists below instead of isset()
$props = get_object_vars($this);
if (
$name === 'iri' ||
$name === 'uri' ||
$name === 'iauthority' ||
$name === 'authority'
)
{
$return = $this->{"get_$name"}();
}
elseif (array_key_exists($name, $props))
{
$return = $this->$name;
}
// host -> ihost
elseif (($prop = 'i' . $name) && array_key_exists($prop, $props))
{
$name = $prop;
$return = $this->$prop;
}
// ischeme -> scheme
elseif (($prop = substr($name, 1)) && array_key_exists($prop, $props))
{
$name = $prop;
$return = $this->$prop;
}
else
{
trigger_error('Undefined property: ' . get_class($this) . '::' . $name, E_USER_NOTICE);
$return = null;
}
if ($return === null && isset($this->normalization[$this->scheme][$name]))
{
return $this->normalization[$this->scheme][$name];
}
else
{
return $return;
}
}
/**
* Overload __isset() to provide access via properties
*
* @param string $name Property name
* @return bool
*/
public function __isset($name)
{
if (method_exists($this, 'get_' . $name) || isset($this->$name))
{
return true;
}
else
{
return false;
}
}
/**
* Overload __unset() to provide access via properties
*
* @param string $name Property name
*/
public function __unset($name)
{
if (method_exists($this, 'set_' . $name))
{
call_user_func(array($this, 'set_' . $name), '');
}
}
/**
* Create a new IRI object, from a specified string
*
* @param string $iri
*/
public function __construct($iri = null)
{
$this->set_iri($iri);
}
/**
* Create a new IRI object by resolving a relative IRI
*
* Returns false if $base is not absolute, otherwise an IRI.
*
* @param IRI|string $base (Absolute) Base IRI
* @param IRI|string $relative Relative IRI
* @return IRI|false
*/
public static function absolutize($base, $relative)
{
if (!($relative instanceof SimplePie_IRI))
{
$relative = new SimplePie_IRI($relative);
}
if (!$relative->is_valid())
{
return false;
}
elseif ($relative->scheme !== null)
{
return clone $relative;
}
else
{
if (!($base instanceof SimplePie_IRI))
{
$base = new SimplePie_IRI($base);
}
if ($base->scheme !== null && $base->is_valid())
{
if ($relative->get_iri() !== '')
{
if ($relative->iuserinfo !== null || $relative->ihost !== null || $relative->port !== null)
{
$target = clone $relative;
$target->scheme = $base->scheme;
}
else
{
$target = new SimplePie_IRI;
$target->scheme = $base->scheme;
$target->iuserinfo = $base->iuserinfo;
$target->ihost = $base->ihost;
$target->port = $base->port;
if ($relative->ipath !== '')
{
if ($relative->ipath[0] === '/')
{
$target->ipath = $relative->ipath;
}
elseif (($base->iuserinfo !== null || $base->ihost !== null || $base->port !== null) && $base->ipath === '')
{
$target->ipath = '/' . $relative->ipath;
}
elseif (($last_segment = strrpos($base->ipath, '/')) !== false)
{
$target->ipath = substr($base->ipath, 0, $last_segment + 1) . $relative->ipath;
}
else
{
$target->ipath = $relative->ipath;
}
$target->ipath = $target->remove_dot_segments($target->ipath);
$target->iquery = $relative->iquery;
}
else
{
$target->ipath = $base->ipath;
if ($relative->iquery !== null)
{
$target->iquery = $relative->iquery;
}
elseif ($base->iquery !== null)
{
$target->iquery = $base->iquery;
}
}
$target->ifragment = $relative->ifragment;
}
}
else
{
$target = clone $base;
$target->ifragment = null;
}
$target->scheme_normalization();
return $target;
}
else
{
return false;
}
}
}
/**
* Parse an IRI into scheme/authority/path/query/fragment segments
*
* @param string $iri
* @return array
*/
protected function parse_iri($iri)
{
$iri = trim($iri, "\x20\x09\x0A\x0C\x0D");
if (preg_match('/^((?P
[^:\/?#]+):)?(\/\/(?P[^\/?#]*))?(?P[^?#]*)(\?(?P[^#]*))?(#(?P.*))?$/', $iri, $match))
{
if ($match[1] === '')
{
$match['scheme'] = null;
}
if (!isset($match[3]) || $match[3] === '')
{
$match['authority'] = null;
}
if (!isset($match[5]))
{
$match['path'] = '';
}
if (!isset($match[6]) || $match[6] === '')
{
$match['query'] = null;
}
if (!isset($match[8]) || $match[8] === '')
{
$match['fragment'] = null;
}
return $match;
}
else
{
// This can occur when a paragraph is accidentally parsed as a URI
return false;
}
}
/**
* Remove dot segments from a path
*
* @param string $input
* @return string
*/
protected function remove_dot_segments($input)
{
$output = '';
while (strpos($input, './') !== false || strpos($input, '/.') !== false || $input === '.' || $input === '..')
{
// A: If the input buffer begins with a prefix of "../" or "./", then remove that prefix from the input buffer; otherwise,
if (strpos($input, '../') === 0)
{
$input = substr($input, 3);
}
elseif (strpos($input, './') === 0)
{
$input = substr($input, 2);
}
// B: if the input buffer begins with a prefix of "/./" or "/.", where "." is a complete path segment, then replace that prefix with "/" in the input buffer; otherwise,
elseif (strpos($input, '/./') === 0)
{
$input = substr($input, 2);
}
elseif ($input === '/.')
{
$input = '/';
}
// C: if the input buffer begins with a prefix of "/../" or "/..", where ".." is a complete path segment, then replace that prefix with "/" in the input buffer and remove the last segment and its preceding "/" (if any) from the output buffer; otherwise,
elseif (strpos($input, '/../') === 0)
{
$input = substr($input, 3);
$output = substr_replace($output, '', strrpos($output, '/'));
}
elseif ($input === '/..')
{
$input = '/';
$output = substr_replace($output, '', strrpos($output, '/'));
}
// D: if the input buffer consists only of "." or "..", then remove that from the input buffer; otherwise,
elseif ($input === '.' || $input === '..')
{
$input = '';
}
// E: move the first path segment in the input buffer to the end of the output buffer, including the initial "/" character (if any) and any subsequent characters up to, but not including, the next "/" character or the end of the input buffer
elseif (($pos = strpos($input, '/', 1)) !== false)
{
$output .= substr($input, 0, $pos);
$input = substr_replace($input, '', 0, $pos);
}
else
{
$output .= $input;
$input = '';
}
}
return $output . $input;
}
/**
* Replace invalid character with percent encoding
*
* @param string $string Input string
* @param string $extra_chars Valid characters not in iunreserved or
* iprivate (this is ASCII-only)
* @param bool $iprivate Allow iprivate
* @return string
*/
protected function replace_invalid_with_pct_encoding($string, $extra_chars, $iprivate = false)
{
// Normalize as many pct-encoded sections as possible
$string = preg_replace_callback('/(?:%[A-Fa-f0-9]{2})+/', array($this, 'remove_iunreserved_percent_encoded'), $string);
// Replace invalid percent characters
$string = preg_replace('/%(?![A-Fa-f0-9]{2})/', '%25', $string);
// Add unreserved and % to $extra_chars (the latter is safe because all
// pct-encoded sections are now valid).
$extra_chars .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~%';
// Now replace any bytes that aren't allowed with their pct-encoded versions
$position = 0;
$strlen = strlen($string);
while (($position += strspn($string, $extra_chars, $position)) < $strlen)
{
$value = ord($string[$position]);
// Start position
$start = $position;
// By default we are valid
$valid = true;
// No one byte sequences are valid due to the while.
// Two byte sequence:
if (($value & 0xE0) === 0xC0)
{
$character = ($value & 0x1F) << 6;
$length = 2;
$remaining = 1;
}
// Three byte sequence:
elseif (($value & 0xF0) === 0xE0)
{
$character = ($value & 0x0F) << 12;
$length = 3;
$remaining = 2;
}
// Four byte sequence:
elseif (($value & 0xF8) === 0xF0)
{
$character = ($value & 0x07) << 18;
$length = 4;
$remaining = 3;
}
// Invalid byte:
else
{
$valid = false;
$length = 1;
$remaining = 0;
}
if ($remaining)
{
if ($position + $length <= $strlen)
{
for ($position++; $remaining; $position++)
{
$value = ord($string[$position]);
// Check that the byte is valid, then add it to the character:
if (($value & 0xC0) === 0x80)
{
$character |= ($value & 0x3F) << (--$remaining * 6);
}
// If it is invalid, count the sequence as invalid and reprocess the current byte:
else
{
$valid = false;
$position--;
break;
}
}
}
else
{
$position = $strlen - 1;
$valid = false;
}
}
// Percent encode anything invalid or not in ucschar
if (
// Invalid sequences
!$valid
// Non-shortest form sequences are invalid
|| $length > 1 && $character <= 0x7F
|| $length > 2 && $character <= 0x7FF
|| $length > 3 && $character <= 0xFFFF
// Outside of range of ucschar codepoints
// Noncharacters
|| ($character & 0xFFFE) === 0xFFFE
|| $character >= 0xFDD0 && $character <= 0xFDEF
|| (
// Everything else not in ucschar
$character > 0xD7FF && $character < 0xF900
|| $character < 0xA0
|| $character > 0xEFFFD
)
&& (
// Everything not in iprivate, if it applies
!$iprivate
|| $character < 0xE000
|| $character > 0x10FFFD
)
)
{
// If we were a character, pretend we weren't, but rather an error.
if ($valid)
$position--;
for ($j = $start; $j <= $position; $j++)
{
$string = substr_replace($string, sprintf('%%%02X', ord($string[$j])), $j, 1);
$j += 2;
$position += 2;
$strlen += 2;
}
}
}
return $string;
}
/**
* Callback function for preg_replace_callback.
*
* Removes sequences of percent encoded bytes that represent UTF-8
* encoded characters in iunreserved
*
* @param array $match PCRE match
* @return string Replacement
*/
protected function remove_iunreserved_percent_encoded($match)
{
// As we just have valid percent encoded sequences we can just explode
// and ignore the first member of the returned array (an empty string).
$bytes = explode('%', $match[0]);
// Initialize the new string (this is what will be returned) and that
// there are no bytes remaining in the current sequence (unsurprising
// at the first byte!).
$string = '';
$remaining = 0;
// Loop over each and every byte, and set $value to its value
for ($i = 1, $len = count($bytes); $i < $len; $i++)
{
$value = hexdec($bytes[$i]);
// If we're the first byte of sequence:
if (!$remaining)
{
// Start position
$start = $i;
// By default we are valid
$valid = true;
// One byte sequence:
if ($value <= 0x7F)
{
$character = $value;
$length = 1;
}
// Two byte sequence:
elseif (($value & 0xE0) === 0xC0)
{
$character = ($value & 0x1F) << 6;
$length = 2;
$remaining = 1;
}
// Three byte sequence:
elseif (($value & 0xF0) === 0xE0)
{
$character = ($value & 0x0F) << 12;
$length = 3;
$remaining = 2;
}
// Four byte sequence:
elseif (($value & 0xF8) === 0xF0)
{
$character = ($value & 0x07) << 18;
$length = 4;
$remaining = 3;
}
// Invalid byte:
else
{
$valid = false;
$remaining = 0;
}
}
// Continuation byte:
else
{
// Check that the byte is valid, then add it to the character:
if (($value & 0xC0) === 0x80)
{
$remaining--;
$character |= ($value & 0x3F) << ($remaining * 6);
}
// If it is invalid, count the sequence as invalid and reprocess the current byte as the start of a sequence:
else
{
$valid = false;
$remaining = 0;
$i--;
}
}
// If we've reached the end of the current byte sequence, append it to Unicode::$data
if (!$remaining)
{
// Percent encode anything invalid or not in iunreserved
if (
// Invalid sequences
!$valid
// Non-shortest form sequences are invalid
|| $length > 1 && $character <= 0x7F
|| $length > 2 && $character <= 0x7FF
|| $length > 3 && $character <= 0xFFFF
// Outside of range of iunreserved codepoints
|| $character < 0x2D
|| $character > 0xEFFFD
// Noncharacters
|| ($character & 0xFFFE) === 0xFFFE
|| $character >= 0xFDD0 && $character <= 0xFDEF
// Everything else not in iunreserved (this is all BMP)
|| $character === 0x2F
|| $character > 0x39 && $character < 0x41
|| $character > 0x5A && $character < 0x61
|| $character > 0x7A && $character < 0x7E
|| $character > 0x7E && $character < 0xA0
|| $character > 0xD7FF && $character < 0xF900
)
{
for ($j = $start; $j <= $i; $j++)
{
$string .= '%' . strtoupper($bytes[$j]);
}
}
else
{
for ($j = $start; $j <= $i; $j++)
{
$string .= chr(hexdec($bytes[$j]));
}
}
}
}
// If we have any bytes left over they are invalid (i.e., we are
// mid-way through a multi-byte sequence)
if ($remaining)
{
for ($j = $start; $j < $len; $j++)
{
$string .= '%' . strtoupper($bytes[$j]);
}
}
return $string;
}
protected function scheme_normalization()
{
if (isset($this->normalization[$this->scheme]['iuserinfo']) && $this->iuserinfo === $this->normalization[$this->scheme]['iuserinfo'])
{
$this->iuserinfo = null;
}
if (isset($this->normalization[$this->scheme]['ihost']) && $this->ihost === $this->normalization[$this->scheme]['ihost'])
{
$this->ihost = null;
}
if (isset($this->normalization[$this->scheme]['port']) && $this->port === $this->normalization[$this->scheme]['port'])
{
$this->port = null;
}
if (isset($this->normalization[$this->scheme]['ipath']) && $this->ipath === $this->normalization[$this->scheme]['ipath'])
{
$this->ipath = '';
}
if (isset($this->normalization[$this->scheme]['iquery']) && $this->iquery === $this->normalization[$this->scheme]['iquery'])
{
$this->iquery = null;
}
if (isset($this->normalization[$this->scheme]['ifragment']) && $this->ifragment === $this->normalization[$this->scheme]['ifragment'])
{
$this->ifragment = null;
}
}
/**
* Check if the object represents a valid IRI. This needs to be done on each
* call as some things change depending on another part of the IRI.
*
* @return bool
*/
public function is_valid()
{
$isauthority = $this->iuserinfo !== null || $this->ihost !== null || $this->port !== null;
if ($this->ipath !== '' &&
(
$isauthority && (
$this->ipath[0] !== '/' ||
substr($this->ipath, 0, 2) === '//'
) ||
(
$this->scheme === null &&
!$isauthority &&
strpos($this->ipath, ':') !== false &&
(strpos($this->ipath, '/') === false ? true : strpos($this->ipath, ':') < strpos($this->ipath, '/'))
)
)
)
{
return false;
}
return true;
}
/**
* Set the entire IRI. Returns true on success, false on failure (if there
* are any invalid characters).
*
* @param string $iri
* @return bool
*/
public function set_iri($iri)
{
static $cache;
if (!$cache)
{
$cache = array();
}
if ($iri === null)
{
return true;
}
elseif (isset($cache[$iri]))
{
list($this->scheme,
$this->iuserinfo,
$this->ihost,
$this->port,
$this->ipath,
$this->iquery,
$this->ifragment,
$return) = $cache[$iri];
return $return;
}
else
{
$parsed = $this->parse_iri((string) $iri);
if (!$parsed)
{
return false;
}
$return = $this->set_scheme($parsed['scheme'])
&& $this->set_authority($parsed['authority'])
&& $this->set_path($parsed['path'])
&& $this->set_query($parsed['query'])
&& $this->set_fragment($parsed['fragment']);
$cache[$iri] = array($this->scheme,
$this->iuserinfo,
$this->ihost,
$this->port,
$this->ipath,
$this->iquery,
$this->ifragment,
$return);
return $return;
}
}
/**
* Set the scheme. Returns true on success, false on failure (if there are
* any invalid characters).
*
* @param string $scheme
* @return bool
*/
public function set_scheme($scheme)
{
if ($scheme === null)
{
$this->scheme = null;
}
elseif (!preg_match('/^[A-Za-z][0-9A-Za-z+\-.]*$/', $scheme))
{
$this->scheme = null;
return false;
}
else
{
$this->scheme = strtolower($scheme);
}
return true;
}
/**
* Set the authority. Returns true on success, false on failure (if there are
* any invalid characters).
*
* @param string $authority
* @return bool
*/
public function set_authority($authority)
{
static $cache;
if (!$cache)
$cache = array();
if ($authority === null)
{
$this->iuserinfo = null;
$this->ihost = null;
$this->port = null;
return true;
}
elseif (isset($cache[$authority]))
{
list($this->iuserinfo,
$this->ihost,
$this->port,
$return) = $cache[$authority];
return $return;
}
else
{
$remaining = $authority;
if (($iuserinfo_end = strrpos($remaining, '@')) !== false)
{
$iuserinfo = substr($remaining, 0, $iuserinfo_end);
$remaining = substr($remaining, $iuserinfo_end + 1);
}
else
{
$iuserinfo = null;
}
if (($port_start = strpos($remaining, ':', strpos($remaining, ']'))) !== false)
{
if (($port = substr($remaining, $port_start + 1)) === false)
{
$port = null;
}
$remaining = substr($remaining, 0, $port_start);
}
else
{
$port = null;
}
$return = $this->set_userinfo($iuserinfo) &&
$this->set_host($remaining) &&
$this->set_port($port);
$cache[$authority] = array($this->iuserinfo,
$this->ihost,
$this->port,
$return);
return $return;
}
}
/**
* Set the iuserinfo.
*
* @param string $iuserinfo
* @return bool
*/
public function set_userinfo($iuserinfo)
{
if ($iuserinfo === null)
{
$this->iuserinfo = null;
}
else
{
$this->iuserinfo = $this->replace_invalid_with_pct_encoding($iuserinfo, '!$&\'()*+,;=:');
$this->scheme_normalization();
}
return true;
}
/**
* Set the ihost. Returns true on success, false on failure (if there are
* any invalid characters).
*
* @param string $ihost
* @return bool
*/
public function set_host($ihost)
{
if ($ihost === null)
{
$this->ihost = null;
return true;
}
elseif (substr($ihost, 0, 1) === '[' && substr($ihost, -1) === ']')
{
if (SimplePie_Net_IPv6::check_ipv6(substr($ihost, 1, -1)))
{
$this->ihost = '[' . SimplePie_Net_IPv6::compress(substr($ihost, 1, -1)) . ']';
}
else
{
$this->ihost = null;
return false;
}
}
else
{
$ihost = $this->replace_invalid_with_pct_encoding($ihost, '!$&\'()*+,;=');
// Lowercase, but ignore pct-encoded sections (as they should
// remain uppercase). This must be done after the previous step
// as that can add unescaped characters.
$position = 0;
$strlen = strlen($ihost);
while (($position += strcspn($ihost, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ%', $position)) < $strlen)
{
if ($ihost[$position] === '%')
{
$position += 3;
}
else
{
$ihost[$position] = strtolower($ihost[$position]);
$position++;
}
}
$this->ihost = $ihost;
}
$this->scheme_normalization();
return true;
}
/**
* Set the port. Returns true on success, false on failure (if there are
* any invalid characters).
*
* @param string $port
* @return bool
*/
public function set_port($port)
{
if ($port === null)
{
$this->port = null;
return true;
}
elseif (strspn($port, '0123456789') === strlen($port))
{
$this->port = (int) $port;
$this->scheme_normalization();
return true;
}
else
{
$this->port = null;
return false;
}
}
/**
* Set the ipath.
*
* @param string $ipath
* @return bool
*/
public function set_path($ipath)
{
static $cache;
if (!$cache)
{
$cache = array();
}
$ipath = (string) $ipath;
if (isset($cache[$ipath]))
{
$this->ipath = $cache[$ipath][(int) ($this->scheme !== null)];
}
else
{
$valid = $this->replace_invalid_with_pct_encoding($ipath, '!$&\'()*+,;=@:/');
$removed = $this->remove_dot_segments($valid);
$cache[$ipath] = array($valid, $removed);
$this->ipath = ($this->scheme !== null) ? $removed : $valid;
}
$this->scheme_normalization();
return true;
}
/**
* Set the iquery.
*
* @param string $iquery
* @return bool
*/
public function set_query($iquery)
{
if ($iquery === null)
{
$this->iquery = null;
}
else
{
$this->iquery = $this->replace_invalid_with_pct_encoding($iquery, '!$&\'()*+,;=:@/?', true);
$this->scheme_normalization();
}
return true;
}
/**
* Set the ifragment.
*
* @param string $ifragment
* @return bool
*/
public function set_fragment($ifragment)
{
if ($ifragment === null)
{
$this->ifragment = null;
}
else
{
$this->ifragment = $this->replace_invalid_with_pct_encoding($ifragment, '!$&\'()*+,;=:@/?');
$this->scheme_normalization();
}
return true;
}
/**
* Convert an IRI to a URI (or parts thereof)
*
* @return string
*/
public function to_uri($string)
{
static $non_ascii;
if (!$non_ascii)
{
$non_ascii = implode('', range("\x80", "\xFF"));
}
$position = 0;
$strlen = strlen($string);
while (($position += strcspn($string, $non_ascii, $position)) < $strlen)
{
$string = substr_replace($string, sprintf('%%%02X', ord($string[$position])), $position, 1);
$position += 3;
$strlen += 2;
}
return $string;
}
/**
* Get the complete IRI
*
* @return string
*/
public function get_iri()
{
if (!$this->is_valid())
{
return false;
}
$iri = '';
if ($this->scheme !== null)
{
$iri .= $this->scheme . ':';
}
if (($iauthority = $this->get_iauthority()) !== null)
{
$iri .= '//' . $iauthority;
}
if ($this->ipath !== '')
{
$iri .= $this->ipath;
}
elseif (!empty($this->normalization[$this->scheme]['ipath']) && $iauthority !== null && $iauthority !== '')
{
$iri .= $this->normalization[$this->scheme]['ipath'];
}
if ($this->iquery !== null)
{
$iri .= '?' . $this->iquery;
}
if ($this->ifragment !== null)
{
$iri .= '#' . $this->ifragment;
}
return $iri;
}
/**
* Get the complete URI
*
* @return string
*/
public function get_uri()
{
return $this->to_uri($this->get_iri());
}
/**
* Get the complete iauthority
*
* @return string
*/
protected function get_iauthority()
{
if ($this->iuserinfo !== null || $this->ihost !== null || $this->port !== null)
{
$iauthority = '';
if ($this->iuserinfo !== null)
{
$iauthority .= $this->iuserinfo . '@';
}
if ($this->ihost !== null)
{
$iauthority .= $this->ihost;
}
if ($this->port !== null)
{
$iauthority .= ':' . $this->port;
}
return $iauthority;
}
else
{
return null;
}
}
/**
* Get the complete authority
*
* @return string
*/
protected function get_authority()
{
$iauthority = $this->get_iauthority();
if (is_string($iauthority))
return $this->to_uri($iauthority);
else
return $iauthority;
}
}
HTTP/Parser.php 0000666 00000025202 15213260146 0007275 0 ustar 00 data = $data;
$this->data_length = strlen($this->data);
}
/**
* Parse the input data
*
* @return bool true on success, false on failure
*/
public function parse()
{
while ($this->state && $this->state !== 'emit' && $this->has_data())
{
$state = $this->state;
$this->$state();
}
$this->data = '';
if ($this->state === 'emit' || $this->state === 'body')
{
return true;
}
else
{
$this->http_version = '';
$this->status_code = '';
$this->reason = '';
$this->headers = array();
$this->body = '';
return false;
}
}
/**
* Check whether there is data beyond the pointer
*
* @return bool true if there is further data, false if not
*/
protected function has_data()
{
return (bool) ($this->position < $this->data_length);
}
/**
* See if the next character is LWS
*
* @return bool true if the next character is LWS, false if not
*/
protected function is_linear_whitespace()
{
return (bool) ($this->data[$this->position] === "\x09"
|| $this->data[$this->position] === "\x20"
|| ($this->data[$this->position] === "\x0A"
&& isset($this->data[$this->position + 1])
&& ($this->data[$this->position + 1] === "\x09" || $this->data[$this->position + 1] === "\x20")));
}
/**
* Parse the HTTP version
*/
protected function http_version()
{
if (strpos($this->data, "\x0A") !== false && strtoupper(substr($this->data, 0, 5)) === 'HTTP/')
{
$len = strspn($this->data, '0123456789.', 5);
$this->http_version = substr($this->data, 5, $len);
$this->position += 5 + $len;
if (substr_count($this->http_version, '.') <= 1)
{
$this->http_version = (float) $this->http_version;
$this->position += strspn($this->data, "\x09\x20", $this->position);
$this->state = 'status';
}
else
{
$this->state = false;
}
}
else
{
$this->state = false;
}
}
/**
* Parse the status code
*/
protected function status()
{
if ($len = strspn($this->data, '0123456789', $this->position))
{
$this->status_code = (int) substr($this->data, $this->position, $len);
$this->position += $len;
$this->state = 'reason';
}
else
{
$this->state = false;
}
}
/**
* Parse the reason phrase
*/
protected function reason()
{
$len = strcspn($this->data, "\x0A", $this->position);
$this->reason = trim(substr($this->data, $this->position, $len), "\x09\x0D\x20");
$this->position += $len + 1;
$this->state = 'new_line';
}
/**
* Deal with a new line, shifting data around as needed
*/
protected function new_line()
{
$this->value = trim($this->value, "\x0D\x20");
if ($this->name !== '' && $this->value !== '')
{
$this->name = strtolower($this->name);
// We should only use the last Content-Type header. c.f. issue #1
if (isset($this->headers[$this->name]) && $this->name !== 'content-type')
{
$this->headers[$this->name] .= ', ' . $this->value;
}
else
{
$this->headers[$this->name] = $this->value;
}
}
$this->name = '';
$this->value = '';
if (substr($this->data[$this->position], 0, 2) === "\x0D\x0A")
{
$this->position += 2;
$this->state = 'body';
}
elseif ($this->data[$this->position] === "\x0A")
{
$this->position++;
$this->state = 'body';
}
else
{
$this->state = 'name';
}
}
/**
* Parse a header name
*/
protected function name()
{
$len = strcspn($this->data, "\x0A:", $this->position);
if (isset($this->data[$this->position + $len]))
{
if ($this->data[$this->position + $len] === "\x0A")
{
$this->position += $len;
$this->state = 'new_line';
}
else
{
$this->name = substr($this->data, $this->position, $len);
$this->position += $len + 1;
$this->state = 'value';
}
}
else
{
$this->state = false;
}
}
/**
* Parse LWS, replacing consecutive LWS characters with a single space
*/
protected function linear_whitespace()
{
do
{
if (substr($this->data, $this->position, 2) === "\x0D\x0A")
{
$this->position += 2;
}
elseif ($this->data[$this->position] === "\x0A")
{
$this->position++;
}
$this->position += strspn($this->data, "\x09\x20", $this->position);
} while ($this->has_data() && $this->is_linear_whitespace());
$this->value .= "\x20";
}
/**
* See what state to move to while within non-quoted header values
*/
protected function value()
{
if ($this->is_linear_whitespace())
{
$this->linear_whitespace();
}
else
{
switch ($this->data[$this->position])
{
case '"':
// Workaround for ETags: we have to include the quotes as
// part of the tag.
if (strtolower($this->name) === 'etag')
{
$this->value .= '"';
$this->position++;
$this->state = 'value_char';
break;
}
$this->position++;
$this->state = 'quote';
break;
case "\x0A":
$this->position++;
$this->state = 'new_line';
break;
default:
$this->state = 'value_char';
break;
}
}
}
/**
* Parse a header value while outside quotes
*/
protected function value_char()
{
$len = strcspn($this->data, "\x09\x20\x0A\"", $this->position);
$this->value .= substr($this->data, $this->position, $len);
$this->position += $len;
$this->state = 'value';
}
/**
* See what state to move to while within quoted header values
*/
protected function quote()
{
if ($this->is_linear_whitespace())
{
$this->linear_whitespace();
}
else
{
switch ($this->data[$this->position])
{
case '"':
$this->position++;
$this->state = 'value';
break;
case "\x0A":
$this->position++;
$this->state = 'new_line';
break;
case '\\':
$this->position++;
$this->state = 'quote_escaped';
break;
default:
$this->state = 'quote_char';
break;
}
}
}
/**
* Parse a header value while within quotes
*/
protected function quote_char()
{
$len = strcspn($this->data, "\x09\x20\x0A\"\\", $this->position);
$this->value .= substr($this->data, $this->position, $len);
$this->position += $len;
$this->state = 'value';
}
/**
* Parse an escaped character within quotes
*/
protected function quote_escaped()
{
$this->value .= $this->data[$this->position];
$this->position++;
$this->state = 'quote';
}
/**
* Parse the body
*/
protected function body()
{
$this->body = substr($this->data, $this->position);
if (!empty($this->headers['transfer-encoding']))
{
unset($this->headers['transfer-encoding']);
$this->state = 'chunked';
}
else
{
$this->state = 'emit';
}
}
/**
* Parsed a "Transfer-Encoding: chunked" body
*/
protected function chunked()
{
if (!preg_match('/^([0-9a-f]+)[^\r\n]*\r\n/i', trim($this->body)))
{
$this->state = 'emit';
return;
}
$decoded = '';
$encoded = $this->body;
while (true)
{
$is_chunked = (bool) preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', $encoded, $matches );
if (!$is_chunked)
{
// Looks like it's not chunked after all
$this->state = 'emit';
return;
}
$length = hexdec(trim($matches[1]));
if ($length === 0)
{
// Ignore trailer headers
$this->state = 'emit';
$this->body = $decoded;
return;
}
$chunk_length = strlen($matches[0]);
$decoded .= $part = substr($encoded, $chunk_length, $length);
$encoded = substr($encoded, $chunk_length + $length + 2);
if (trim($encoded) === '0' || empty($encoded))
{
$this->state = 'emit';
$this->body = $decoded;
return;
}
}
}
}
Cache.php 0000666 00000010310 15213260146 0006257 0 ustar 00 'SimplePie_Cache_MySQL',
'memcache' => 'SimplePie_Cache_Memcache',
);
/**
* Don't call the constructor. Please.
*/
private function __construct() { }
/**
* Create a new SimplePie_Cache object
*
* @param string $location URL location (scheme is used to determine handler)
* @param string $filename Unique identifier for cache object
* @param string $extension 'spi' or 'spc'
* @return SimplePie_Cache_Base Type of object depends on scheme of `$location`
*/
public static function get_handler($location, $filename, $extension)
{
$type = explode(':', $location, 2);
$type = $type[0];
if (!empty(self::$handlers[$type]))
{
$class = self::$handlers[$type];
return new $class($location, $filename, $extension);
}
return new SimplePie_Cache_File($location, $filename, $extension);
}
/**
* Create a new SimplePie_Cache object
*
* @deprecated Use {@see get_handler} instead
*/
public function create($location, $filename, $extension)
{
trigger_error('Cache::create() has been replaced with Cache::get_handler(). Switch to the registry system to use this.', E_USER_DEPRECATED);
return self::get_handler($location, $filename, $extension);
}
/**
* Register a handler
*
* @param string $type DSN type to register for
* @param string $class Name of handler class. Must implement SimplePie_Cache_Base
*/
public static function register($type, $class)
{
self::$handlers[$type] = $class;
}
/**
* Parse a URL into an array
*
* @param string $url
* @return array
*/
public static function parse_URL($url)
{
$params = parse_url($url);
$params['extras'] = array();
if (isset($params['query']))
{
parse_str($params['query'], $params['extras']);
}
return $params;
}
}
Copyright.php 0000666 00000006447 15213260146 0007244 0 ustar 00 ` copyright tags as defined in Media RSS
*
* Used by {@see SimplePie_Enclosure::get_copyright()}
*
* This class can be overloaded with {@see SimplePie::set_copyright_class()}
*
* @package SimplePie
* @subpackage API
*/
class SimplePie_Copyright
{
/**
* Copyright URL
*
* @var string
* @see get_url()
*/
var $url;
/**
* Attribution
*
* @var string
* @see get_attribution()
*/
var $label;
/**
* Constructor, used to input the data
*
* For documentation on all the parameters, see the corresponding
* properties and their accessors
*/
public function __construct($url = null, $label = null)
{
$this->url = $url;
$this->label = $label;
}
/**
* String-ified version
*
* @return string
*/
public function __toString()
{
// There is no $this->data here
return md5(serialize($this));
}
/**
* Get the copyright URL
*
* @return string|null URL to copyright information
*/
public function get_url()
{
if ($this->url !== null)
{
return $this->url;
}
else
{
return null;
}
}
/**
* Get the attribution text
*
* @return string|null
*/
public function get_attribution()
{
if ($this->label !== null)
{
return $this->label;
}
else
{
return null;
}
}
}
Net/IPv6.php 0000666 00000016630 15213260146 0006601 0 ustar 00
* @author elfrink at introweb dot nl
* @author Josh Peck
* @author Geoffrey Sneddon
*/
class SimplePie_Net_IPv6
{
/**
* Uncompresses an IPv6 address
*
* RFC 4291 allows you to compress concecutive zero pieces in an address to
* '::'. This method expects a valid IPv6 address and expands the '::' to
* the required number of zero pieces.
*
* Example: FF01::101 -> FF01:0:0:0:0:0:0:101
* ::1 -> 0:0:0:0:0:0:0:1
*
* @author Alexander Merz
* @author elfrink at introweb dot nl
* @author Josh Peck
* @copyright 2003-2005 The PHP Group
* @license http://www.opensource.org/licenses/bsd-license.php
* @param string $ip An IPv6 address
* @return string The uncompressed IPv6 address
*/
public static function uncompress($ip)
{
$c1 = -1;
$c2 = -1;
if (substr_count($ip, '::') === 1)
{
list($ip1, $ip2) = explode('::', $ip);
if ($ip1 === '')
{
$c1 = -1;
}
else
{
$c1 = substr_count($ip1, ':');
}
if ($ip2 === '')
{
$c2 = -1;
}
else
{
$c2 = substr_count($ip2, ':');
}
if (strpos($ip2, '.') !== false)
{
$c2++;
}
// ::
if ($c1 === -1 && $c2 === -1)
{
$ip = '0:0:0:0:0:0:0:0';
}
// ::xxx
else if ($c1 === -1)
{
$fill = str_repeat('0:', 7 - $c2);
$ip = str_replace('::', $fill, $ip);
}
// xxx::
else if ($c2 === -1)
{
$fill = str_repeat(':0', 7 - $c1);
$ip = str_replace('::', $fill, $ip);
}
// xxx::xxx
else
{
$fill = ':' . str_repeat('0:', 6 - $c2 - $c1);
$ip = str_replace('::', $fill, $ip);
}
}
return $ip;
}
/**
* Compresses an IPv6 address
*
* RFC 4291 allows you to compress concecutive zero pieces in an address to
* '::'. This method expects a valid IPv6 address and compresses consecutive
* zero pieces to '::'.
*
* Example: FF01:0:0:0:0:0:0:101 -> FF01::101
* 0:0:0:0:0:0:0:1 -> ::1
*
* @see uncompress()
* @param string $ip An IPv6 address
* @return string The compressed IPv6 address
*/
public static function compress($ip)
{
// Prepare the IP to be compressed
$ip = self::uncompress($ip);
$ip_parts = self::split_v6_v4($ip);
// Replace all leading zeros
$ip_parts[0] = preg_replace('/(^|:)0+([0-9])/', '\1\2', $ip_parts[0]);
// Find bunches of zeros
if (preg_match_all('/(?:^|:)(?:0(?::|$))+/', $ip_parts[0], $matches, PREG_OFFSET_CAPTURE))
{
$max = 0;
$pos = null;
foreach ($matches[0] as $match)
{
if (strlen($match[0]) > $max)
{
$max = strlen($match[0]);
$pos = $match[1];
}
}
$ip_parts[0] = substr_replace($ip_parts[0], '::', $pos, $max);
}
if ($ip_parts[1] !== '')
{
return implode(':', $ip_parts);
}
else
{
return $ip_parts[0];
}
}
/**
* Splits an IPv6 address into the IPv6 and IPv4 representation parts
*
* RFC 4291 allows you to represent the last two parts of an IPv6 address
* using the standard IPv4 representation
*
* Example: 0:0:0:0:0:0:13.1.68.3
* 0:0:0:0:0:FFFF:129.144.52.38
*
* @param string $ip An IPv6 address
* @return array [0] contains the IPv6 represented part, and [1] the IPv4 represented part
*/
private static function split_v6_v4($ip)
{
if (strpos($ip, '.') !== false)
{
$pos = strrpos($ip, ':');
$ipv6_part = substr($ip, 0, $pos);
$ipv4_part = substr($ip, $pos + 1);
return array($ipv6_part, $ipv4_part);
}
else
{
return array($ip, '');
}
}
/**
* Checks an IPv6 address
*
* Checks if the given IP is a valid IPv6 address
*
* @param string $ip An IPv6 address
* @return bool true if $ip is a valid IPv6 address
*/
public static function check_ipv6($ip)
{
$ip = self::uncompress($ip);
list($ipv6, $ipv4) = self::split_v6_v4($ip);
$ipv6 = explode(':', $ipv6);
$ipv4 = explode('.', $ipv4);
if (count($ipv6) === 8 && count($ipv4) === 1 || count($ipv6) === 6 && count($ipv4) === 4)
{
foreach ($ipv6 as $ipv6_part)
{
// The section can't be empty
if ($ipv6_part === '')
return false;
// Nor can it be over four characters
if (strlen($ipv6_part) > 4)
return false;
// Remove leading zeros (this is safe because of the above)
$ipv6_part = ltrim($ipv6_part, '0');
if ($ipv6_part === '')
$ipv6_part = '0';
// Check the value is valid
$value = hexdec($ipv6_part);
if (dechex($value) !== strtolower($ipv6_part) || $value < 0 || $value > 0xFFFF)
return false;
}
if (count($ipv4) === 4)
{
foreach ($ipv4 as $ipv4_part)
{
$value = (int) $ipv4_part;
if ((string) $value !== $ipv4_part || $value < 0 || $value > 0xFF)
return false;
}
}
return true;
}
else
{
return false;
}
}
/**
* Checks if the given IP is a valid IPv6 address
*
* @codeCoverageIgnore
* @deprecated Use {@see SimplePie_Net_IPv6::check_ipv6()} instead
* @see check_ipv6
* @param string $ip An IPv6 address
* @return bool true if $ip is a valid IPv6 address
*/
public static function checkIPv6($ip)
{
return self::check_ipv6($ip);
}
}
Enclosure.php 0000666 00000065537 15213260146 0007240 0 ustar 00 bitrate = $bitrate;
$this->captions = $captions;
$this->categories = $categories;
$this->channels = $channels;
$this->copyright = $copyright;
$this->credits = $credits;
$this->description = $description;
$this->duration = $duration;
$this->expression = $expression;
$this->framerate = $framerate;
$this->hashes = $hashes;
$this->height = $height;
$this->keywords = $keywords;
$this->lang = $lang;
$this->length = $length;
$this->link = $link;
$this->medium = $medium;
$this->player = $player;
$this->ratings = $ratings;
$this->restrictions = $restrictions;
$this->samplingrate = $samplingrate;
$this->thumbnails = $thumbnails;
$this->title = $title;
$this->type = $type;
$this->width = $width;
if (class_exists('idna_convert'))
{
$idn = new idna_convert();
$parsed = SimplePie_Misc::parse_url($link);
$this->link = SimplePie_Misc::compress_parse_url($parsed['scheme'], $idn->encode($parsed['authority']), $parsed['path'], $parsed['query'], $parsed['fragment']);
}
$this->handler = $this->get_handler(); // Needs to load last
}
/**
* String-ified version
*
* @return string
*/
public function __toString()
{
// There is no $this->data here
return md5(serialize($this));
}
/**
* Get the bitrate
*
* @return string|null
*/
public function get_bitrate()
{
if ($this->bitrate !== null)
{
return $this->bitrate;
}
else
{
return null;
}
}
/**
* Get a single caption
*
* @param int $key
* @return SimplePie_Caption|null
*/
public function get_caption($key = 0)
{
$captions = $this->get_captions();
if (isset($captions[$key]))
{
return $captions[$key];
}
else
{
return null;
}
}
/**
* Get all captions
*
* @return array|null Array of {@see SimplePie_Caption} objects
*/
public function get_captions()
{
if ($this->captions !== null)
{
return $this->captions;
}
else
{
return null;
}
}
/**
* Get a single category
*
* @param int $key
* @return SimplePie_Category|null
*/
public function get_category($key = 0)
{
$categories = $this->get_categories();
if (isset($categories[$key]))
{
return $categories[$key];
}
else
{
return null;
}
}
/**
* Get all categories
*
* @return array|null Array of {@see SimplePie_Category} objects
*/
public function get_categories()
{
if ($this->categories !== null)
{
return $this->categories;
}
else
{
return null;
}
}
/**
* Get the number of audio channels
*
* @return int|null
*/
public function get_channels()
{
if ($this->channels !== null)
{
return $this->channels;
}
else
{
return null;
}
}
/**
* Get the copyright information
*
* @return SimplePie_Copyright|null
*/
public function get_copyright()
{
if ($this->copyright !== null)
{
return $this->copyright;
}
else
{
return null;
}
}
/**
* Get a single credit
*
* @param int $key
* @return SimplePie_Credit|null
*/
public function get_credit($key = 0)
{
$credits = $this->get_credits();
if (isset($credits[$key]))
{
return $credits[$key];
}
else
{
return null;
}
}
/**
* Get all credits
*
* @return array|null Array of {@see SimplePie_Credit} objects
*/
public function get_credits()
{
if ($this->credits !== null)
{
return $this->credits;
}
else
{
return null;
}
}
/**
* Get the description of the enclosure
*
* @return string|null
*/
public function get_description()
{
if ($this->description !== null)
{
return $this->description;
}
else
{
return null;
}
}
/**
* Get the duration of the enclosure
*
* @param string $convert Convert seconds into hh:mm:ss
* @return string|int|null 'hh:mm:ss' string if `$convert` was specified, otherwise integer (or null if none found)
*/
public function get_duration($convert = false)
{
if ($this->duration !== null)
{
if ($convert)
{
$time = SimplePie_Misc::time_hms($this->duration);
return $time;
}
else
{
return $this->duration;
}
}
else
{
return null;
}
}
/**
* Get the expression
*
* @return string Probably one of 'sample', 'full', 'nonstop', 'clip'. Defaults to 'full'
*/
public function get_expression()
{
if ($this->expression !== null)
{
return $this->expression;
}
else
{
return 'full';
}
}
/**
* Get the file extension
*
* @return string|null
*/
public function get_extension()
{
if ($this->link !== null)
{
$url = SimplePie_Misc::parse_url($this->link);
if ($url['path'] !== '')
{
return pathinfo($url['path'], PATHINFO_EXTENSION);
}
}
return null;
}
/**
* Get the framerate (in frames-per-second)
*
* @return string|null
*/
public function get_framerate()
{
if ($this->framerate !== null)
{
return $this->framerate;
}
else
{
return null;
}
}
/**
* Get the preferred handler
*
* @return string|null One of 'flash', 'fmedia', 'quicktime', 'wmedia', 'mp3'
*/
public function get_handler()
{
return $this->get_real_type(true);
}
/**
* Get a single hash
*
* @link http://www.rssboard.org/media-rss#media-hash
* @param int $key
* @return string|null Hash as per `media:hash`, prefixed with "$algo:"
*/
public function get_hash($key = 0)
{
$hashes = $this->get_hashes();
if (isset($hashes[$key]))
{
return $hashes[$key];
}
else
{
return null;
}
}
/**
* Get all credits
*
* @return array|null Array of strings, see {@see get_hash()}
*/
public function get_hashes()
{
if ($this->hashes !== null)
{
return $this->hashes;
}
else
{
return null;
}
}
/**
* Get the height
*
* @return string|null
*/
public function get_height()
{
if ($this->height !== null)
{
return $this->height;
}
else
{
return null;
}
}
/**
* Get the language
*
* @link http://tools.ietf.org/html/rfc3066
* @return string|null Language code as per RFC 3066
*/
public function get_language()
{
if ($this->lang !== null)
{
return $this->lang;
}
else
{
return null;
}
}
/**
* Get a single keyword
*
* @param int $key
* @return string|null
*/
public function get_keyword($key = 0)
{
$keywords = $this->get_keywords();
if (isset($keywords[$key]))
{
return $keywords[$key];
}
else
{
return null;
}
}
/**
* Get all keywords
*
* @return array|null Array of strings
*/
public function get_keywords()
{
if ($this->keywords !== null)
{
return $this->keywords;
}
else
{
return null;
}
}
/**
* Get length
*
* @return float Length in bytes
*/
public function get_length()
{
if ($this->length !== null)
{
return $this->length;
}
else
{
return null;
}
}
/**
* Get the URL
*
* @return string|null
*/
public function get_link()
{
if ($this->link !== null)
{
return urldecode($this->link);
}
else
{
return null;
}
}
/**
* Get the medium
*
* @link http://www.rssboard.org/media-rss#media-content
* @return string|null Should be one of 'image', 'audio', 'video', 'document', 'executable'
*/
public function get_medium()
{
if ($this->medium !== null)
{
return $this->medium;
}
else
{
return null;
}
}
/**
* Get the player URL
*
* Typically the same as {@see get_permalink()}
* @return string|null Player URL
*/
public function get_player()
{
if ($this->player !== null)
{
return $this->player;
}
else
{
return null;
}
}
/**
* Get a single rating
*
* @param int $key
* @return SimplePie_Rating|null
*/
public function get_rating($key = 0)
{
$ratings = $this->get_ratings();
if (isset($ratings[$key]))
{
return $ratings[$key];
}
else
{
return null;
}
}
/**
* Get all ratings
*
* @return array|null Array of {@see SimplePie_Rating} objects
*/
public function get_ratings()
{
if ($this->ratings !== null)
{
return $this->ratings;
}
else
{
return null;
}
}
/**
* Get a single restriction
*
* @param int $key
* @return SimplePie_Restriction|null
*/
public function get_restriction($key = 0)
{
$restrictions = $this->get_restrictions();
if (isset($restrictions[$key]))
{
return $restrictions[$key];
}
else
{
return null;
}
}
/**
* Get all restrictions
*
* @return array|null Array of {@see SimplePie_Restriction} objects
*/
public function get_restrictions()
{
if ($this->restrictions !== null)
{
return $this->restrictions;
}
else
{
return null;
}
}
/**
* Get the sampling rate (in kHz)
*
* @return string|null
*/
public function get_sampling_rate()
{
if ($this->samplingrate !== null)
{
return $this->samplingrate;
}
else
{
return null;
}
}
/**
* Get the file size (in MiB)
*
* @return float|null File size in mebibytes (1048 bytes)
*/
public function get_size()
{
$length = $this->get_length();
if ($length !== null)
{
return round($length/1048576, 2);
}
else
{
return null;
}
}
/**
* Get a single thumbnail
*
* @param int $key
* @return string|null Thumbnail URL
*/
public function get_thumbnail($key = 0)
{
$thumbnails = $this->get_thumbnails();
if (isset($thumbnails[$key]))
{
return $thumbnails[$key];
}
else
{
return null;
}
}
/**
* Get all thumbnails
*
* @return array|null Array of thumbnail URLs
*/
public function get_thumbnails()
{
if ($this->thumbnails !== null)
{
return $this->thumbnails;
}
else
{
return null;
}
}
/**
* Get the title
*
* @return string|null
*/
public function get_title()
{
if ($this->title !== null)
{
return $this->title;
}
else
{
return null;
}
}
/**
* Get mimetype of the enclosure
*
* @see get_real_type()
* @return string|null MIME type
*/
public function get_type()
{
if ($this->type !== null)
{
return $this->type;
}
else
{
return null;
}
}
/**
* Get the width
*
* @return string|null
*/
public function get_width()
{
if ($this->width !== null)
{
return $this->width;
}
else
{
return null;
}
}
/**
* Embed the enclosure using `