function parse(&$data, $encoding)
{
// Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
if (strtoupper($encoding) == 'US-ASCII') {
$this->encoding = 'UTF-8';
} else {
$this->encoding = $encoding;
}
// Strip BOM:
// UTF-32 Big Endian BOM
if (substr($data, 0, 4) === "��") {
$data = substr($data, 4);
} elseif (substr($data, 0, 4) === "��") {
$data = substr($data, 4);
} elseif (substr($data, 0, 2) === "��") {
$data = substr($data, 2);
} elseif (substr($data, 0, 2) === "��") {
$data = substr($data, 2);
} elseif (substr($data, 0, 3) === "") {
$data = substr($data, 3);
}
if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\t\n\r ") && ($pos = strpos($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;
}
}
// Work around libxml bug
$data = str_replace('<', '<', $data);
$data = str_replace('>', '>', $data);
$data = str_replace('&', '&', $data);
$data = str_replace(''', ''', $data);
$data = str_replace('"', '"', $data);
$return = true;
// Create the parser
$xml = xml_parser_create_ns($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($xml, 'tag_open', 'tag_close');
// Parse!
if (!xml_parse($xml, $data, true)) {
$this->error_code = xml_get_error_code($xml);
$this->error_string = xml_error_string($this->error_code);
$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 $return;
}
public function parse(&$data, $encoding)
{
if (strtoupper($encoding) === 'US-ASCII') {
$this->encoding = 'UTF-8';
} else {
$this->encoding = $encoding;
}
if (substr($data, 0, 4) === "��") {
$data = substr($data, 4);
} elseif (substr($data, 0, 4) === "��") {
$data = substr($data, 4);
} elseif (substr($data, 0, 2) === "��") {
$data = substr($data, 2);
} elseif (substr($data, 0, 2) === "��") {
$data = substr($data, 2);
} elseif (substr($data, 0, 3) === "") {
$data = substr($data, 3);
}
if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\t\n\r ") && ($pos = strpos($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']);
}
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($xml, 'tag_open', 'tag_close');
if (!xml_parse($xml, $data, true)) {
$this->error_code = xml_get_error_code($xml);
$this->error_string = xml_error_string($this->error_code);
$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;
}
$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;
}
}
}
/**
* Detect XML encoding, as per XML 1.0 Appendix F.1
*
* @todo Add support for EBCDIC
* @param string $data XML data
* @return array Possible encodings
*/
public static function xml_encoding($data)
{
// UTF-32 Big Endian BOM
if (substr($data, 0, 4) === "��") {
$encoding[] = 'UTF-32BE';
} elseif (substr($data, 0, 4) === "��") {
$encoding[] = 'UTF-32LE';
} elseif (substr($data, 0, 2) === "��") {
$encoding[] = 'UTF-16BE';
} elseif (substr($data, 0, 2) === "��") {
$encoding[] = 'UTF-16LE';
} elseif (substr($data, 0, 3) === "") {
$encoding[] = 'UTF-8';
} elseif (substr($data, 0, 20) === "<?xml") {
if ($pos = strpos($data, "?>")) {
$parser = new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32BE', 'UTF-8'));
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-32BE';
} elseif (substr($data, 0, 20) === "<?xml") {
if ($pos = strpos($data, "?>")) {
$parser = new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32LE', 'UTF-8'));
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-32LE';
} elseif (substr($data, 0, 10) === "<?xml") {
if ($pos = strpos($data, "?>")) {
$parser = new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16BE', 'UTF-8'));
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-16BE';
} elseif (substr($data, 0, 10) === "<?xml") {
if ($pos = strpos($data, "?>")) {
$parser = new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16LE', 'UTF-8'));
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-16LE';
} elseif (substr($data, 0, 5) === "<?xml") {
if ($pos = strpos($data, "?>")) {
$parser = new SimplePie_XML_Declaration_Parser(substr($data, 5, $pos - 5));
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-8';
} else {
$encoding[] = 'UTF-8';
}
return $encoding;
}
/**
* Detect XML encoding, as per XML 1.0 Appendix F.1
*
* @todo Add support for EBCDIC
* @param string $data XML data
* @return array Possible encodings
*/
public static function xml_encoding($data)
{
// UTF-32 Big Endian BOM
if (substr($data, 0, 4) === "\x00\x00\xFE\xFF")
{
$encoding[] = 'UTF-32BE';
}
// UTF-32 Little Endian BOM
elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00")
{
$encoding[] = 'UTF-32LE';
}
// UTF-16 Big Endian BOM
elseif (substr($data, 0, 2) === "\xFE\xFF")
{
$encoding[] = 'UTF-16BE';
}
// UTF-16 Little Endian BOM
elseif (substr($data, 0, 2) === "\xFF\xFE")
{
$encoding[] = 'UTF-16LE';
}
// UTF-8 BOM
elseif (substr($data, 0, 3) === "\xEF\xBB\xBF")
{
$encoding[] = 'UTF-8';
}
// UTF-32 Big Endian Without BOM
elseif (substr($data, 0, 20) === "\x00\x00\x00\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C")
{
if ($pos = strpos($data, "\x00\x00\x00\x3F\x00\x00\x00\x3E"))
{
$parser = new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32BE', 'UTF-8'));
if ($parser->parse())
{
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-32BE';
}
// UTF-32 Little Endian Without BOM
elseif (substr($data, 0, 20) === "\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C\x00\x00\x00")
{
if ($pos = strpos($data, "\x3F\x00\x00\x00\x3E\x00\x00\x00"))
{
$parser = new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32LE', 'UTF-8'));
if ($parser->parse())
{
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-32LE';
}
// UTF-16 Big Endian Without BOM
elseif (substr($data, 0, 10) === "\x00\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C")
{
if ($pos = strpos($data, "\x00\x3F\x00\x3E"))
{
$parser = new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16BE', 'UTF-8'));
if ($parser->parse())
{
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-16BE';
}
// UTF-16 Little Endian Without BOM
elseif (substr($data, 0, 10) === "\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C\x00")
{
if ($pos = strpos($data, "\x3F\x00\x3E\x00"))
{
$parser = new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16LE', 'UTF-8'));
if ($parser->parse())
{
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-16LE';
}
// US-ASCII (or superset)
elseif (substr($data, 0, 5) === "\x3C\x3F\x78\x6D\x6C")
{
if ($pos = strpos($data, "\x3F\x3E"))
{
$parser = new SimplePie_XML_Declaration_Parser(substr($data, 5, $pos - 5));
if ($parser->parse())
{
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-8';
}
// Fallback to UTF-8
else
{
$encoding[] = 'UTF-8';
}
return $encoding;
}
function parse(&$data, $encoding)
{
// Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
if (strtoupper($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;
// Create the parser
$xml = xml_parser_create_ns($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($xml, 'tag_open', 'tag_close');
// Parse!
if (!xml_parse($xml, $data, true))
{
$this->error_code = xml_get_error_code($xml);
$this->error_string = xml_error_string($this->error_code);
$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;
}
