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feedwordpress_parser.class.php
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feedwordpress_parser.class.php
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<?php
class FeedWordPress_Parser extends SimplePie_Parser {
function reset_parser (&$xml) {
xml_parser_free($xml);
$xml = xml_parser_create_ns($this->encoding, $this->separator);
xml_parser_set_option($xml, XML_OPTION_SKIP_WHITE, 1);
xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, 0);
xml_set_object($xml, $this);
xml_set_character_data_handler($xml, 'cdata');
xml_set_element_handler($xml, 'tag_open', 'tag_close');
xml_set_start_namespace_decl_handler($xml, 'start_xmlns');
}
function parse (&$data, $encoding) {
$data = apply_filters('feedwordpress_parser_parse', $data, $encoding, $this);
// Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
if (strtoupper($encoding) === 'US-ASCII')
{
$this->encoding = 'UTF-8';
}
else
{
$this->encoding = $encoding;
}
// Strip BOM:
// UTF-32 Big Endian BOM
if (substr($data, 0, 4) === "\x00\x00\xFE\xFF")
{
$data = substr($data, 4);
}
// UTF-32 Little Endian BOM
elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00")
{
$data = substr($data, 4);
}
// UTF-16 Big Endian BOM
elseif (substr($data, 0, 2) === "\xFE\xFF")
{
$data = substr($data, 2);
}
// UTF-16 Little Endian BOM
elseif (substr($data, 0, 2) === "\xFF\xFE")
{
$data = substr($data, 2);
}
// UTF-8 BOM
elseif (substr($data, 0, 3) === "\xEF\xBB\xBF")
{
$data = substr($data, 3);
}
if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\x09\x0A\x0D\x20") && ($pos = strpos($data, '?>')) !== false)
{
$declaration = new SimplePie_XML_Declaration_Parser(substr($data, 5, $pos - 5));
if ($declaration->parse())
{
$data = substr($data, $pos + 2);
$data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' . $data;
}
else
{
$this->error_string = 'SimplePie bug! Please report this!';
return false;
}
}
$return = true;
static $xml_is_sane = null;
if ($xml_is_sane === null)
{
$parser_check = xml_parser_create();
xml_parse_into_struct($parser_check, '<foo>&</foo>', $values);
xml_parser_free($parser_check);
$xml_is_sane = isset($values[0]['value']);
}
// Create the parser
if ($xml_is_sane)
{
$xml = xml_parser_create_ns($this->encoding, $this->separator);
xml_parser_set_option($xml, XML_OPTION_SKIP_WHITE, 1);
xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, 0);
xml_set_object($xml, $this);
xml_set_character_data_handler($xml, 'cdata');
xml_set_element_handler($xml, 'tag_open', 'tag_close');
xml_set_start_namespace_decl_handler($xml, 'start_xmlns');
// Parse!
$parseResults = xml_parse($xml, $data, true);
$endOfJunk = strpos($data, '<?xml');
if (!$parseResults and $endOfJunk > 0) :
// There is some junk before the feed prolog. Try to get rid of it.
$newData = substr($data, $endOfJunk);
$newData = trim($newData);
$this->reset_parser($xml);
$parseResults = xml_parse($xml, $newData, true);
endif;
if (!$parseResults)
{
if (class_exists('DOMDocument')) :
libxml_use_internal_errors(true);
$doc = new DOMDocument;
$doc->loadHTML('<html>'.$data.'</html>');
///*DBG*/ echo "<plaintext>";
///*DBG*/ $dd = $doc->getElementsByTagName('html');
///*DBG*/ for ($i = 0; $i < $dd->length; $i++) :
///*DBG*/ var_dump($dd->item($i)->nodeName);
///*DBG*/ endfor;
///*DBG*/ var_dump($doc);
libxml_use_internal_errors(false);
///*DBG*/ die;
endif;
$this->error_code = xml_get_error_code($xml);
$this->error_string = xml_error_string($this->error_code);
///*DBG*/ echo "WOOGA WOOGA"; var_dump($this->error_string); die;
$return = false;
}
$this->current_line = xml_get_current_line_number($xml);
$this->current_column = xml_get_current_column_number($xml);
$this->current_byte = xml_get_current_byte_index($xml);
xml_parser_free($xml);
return $return;
}
else
{
libxml_clear_errors();
$xml = new XMLReader();
$xml->xml($data);
while (@$xml->read())
{
switch ($xml->nodeType)
{
case constant('XMLReader::END_ELEMENT'):
if ($xml->namespaceURI !== '')
{
$tagName = "{$xml->namespaceURI}{$this->separator}{$xml->localName}";
}
else
{
$tagName = $xml->localName;
}
$this->tag_close(null, $tagName);
break;
case constant('XMLReader::ELEMENT'):
$empty = $xml->isEmptyElement;
if ($xml->namespaceURI !== '')
{
$tagName = "{$xml->namespaceURI}{$this->separator}{$xml->localName}";
}
else
{
$tagName = $xml->localName;
}
$attributes = array();
while ($xml->moveToNextAttribute())
{
if ($xml->namespaceURI !== '')
{
$attrName = "{$xml->namespaceURI}{$this->separator}{$xml->localName}";
}
else
{
$attrName = $xml->localName;
}
$attributes[$attrName] = $xml->value;
}
foreach ($attributes as $attr => $value) :
list($ns, $local) = $this->split_ns($attr);
if ($ns=='http://www.w3.org/2000/xmlns/') :
if ('xmlns' == $local) : $local = false; endif;
$this->start_xmlns(null, $local, $value);
endif;
endforeach;
$this->tag_open(null, $tagName, $attributes);
if ($empty)
{
$this->tag_close(null, $tagName);
}
break;
case constant('XMLReader::TEXT'):
case constant('XMLReader::CDATA'):
$this->cdata(null, $xml->value);
break;
}
}
if ($error = libxml_get_last_error())
{
$this->error_code = $error->code;
$this->error_string = $error->message;
$this->current_line = $error->line;
$this->current_column = $error->column;
return false;
}
else
{
return true;
}
}
} /* FeedWordPress_Parser::parse() */
var $xmlns_stack = array();
var $xmlns_current = array();
function tag_open ($parser, $tag, $attributes) {
$ret = parent::tag_open($parser, $tag, $attributes);
if ($this->current_xhtml_construct < 0) :
$this->data['xmlns'] = $this->xmlns_current;
$this->xmlns_stack[] = $this->xmlns_current;
endif;
return $ret;
}
function tag_close($parser, $tag) {
if ($this->current_xhtml_construct < 0) :
$this->xmlns_current = array_pop($this->xmlns_stack);
endif;
$ret = parent::tag_close($parser, $tag);
return $ret;
}
function start_xmlns ($parser, $prefix, $uri) {
if (!$prefix) :
$prefix = '';
endif;
if ($this->current_xhtml_construct < 0) :
$this->xmlns_current[$prefix] = $uri;
endif;
return true;
} /* FeedWordPress_Parser::start_xmlns() */
}