353 lines
12 KiB
PHP
353 lines
12 KiB
PHP
<?php
|
|
/**
|
|
* @file include/xml.php
|
|
*/
|
|
|
|
|
|
/**
|
|
* @brief This class contain functions to work with XML data
|
|
*
|
|
*/
|
|
class xml {
|
|
/**
|
|
* @brief Creates an XML structure out of a given array
|
|
*
|
|
* @param array $array The array of the XML structure that will be generated
|
|
* @param object $xml The createdXML will be returned by reference
|
|
* @param bool $remove_header Should the XML header be removed or not?
|
|
* @param array $namespaces List of namespaces
|
|
* @param bool $root - interally used parameter. Mustn't be used from outside.
|
|
*
|
|
* @return string The created XML
|
|
*/
|
|
public static function from_array($array, &$xml, $remove_header = false, $namespaces = array(), $root = true) {
|
|
|
|
if ($root) {
|
|
foreach($array as $key => $value) {
|
|
foreach ($namespaces AS $nskey => $nsvalue)
|
|
$key .= " xmlns".($nskey == "" ? "":":").$nskey.'="'.$nsvalue.'"';
|
|
|
|
$root = new SimpleXMLElement("<".$key."/>");
|
|
self::from_array($value, $root, $remove_header, $namespaces, false);
|
|
|
|
$dom = dom_import_simplexml($root)->ownerDocument;
|
|
$dom->formatOutput = true;
|
|
$xml = $dom;
|
|
|
|
$xml_text = $dom->saveXML();
|
|
|
|
if ($remove_header)
|
|
$xml_text = trim(substr($xml_text, 21));
|
|
|
|
return $xml_text;
|
|
}
|
|
}
|
|
|
|
foreach($array as $key => $value) {
|
|
if ($key == "@attributes") {
|
|
if (!isset($element) OR !is_array($value))
|
|
continue;
|
|
|
|
foreach ($value as $attr_key => $attr_value) {
|
|
$element_parts = explode(":", $attr_key);
|
|
if ((count($element_parts) > 1) AND isset($namespaces[$element_parts[0]]))
|
|
$namespace = $namespaces[$element_parts[0]];
|
|
else
|
|
$namespace = NULL;
|
|
|
|
$element->addAttribute ($attr_key, $attr_value, $namespace);
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
$element_parts = explode(":", $key);
|
|
if ((count($element_parts) > 1) AND isset($namespaces[$element_parts[0]]))
|
|
$namespace = $namespaces[$element_parts[0]];
|
|
else
|
|
$namespace = NULL;
|
|
|
|
if (!is_array($value))
|
|
$element = $xml->addChild($key, xmlify($value), $namespace);
|
|
elseif (is_array($value)) {
|
|
$element = $xml->addChild($key, NULL, $namespace);
|
|
self::from_array($value, $element, $remove_header, $namespaces, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Copies an XML object
|
|
*
|
|
* @param object $source The XML source
|
|
* @param object $target The XML target
|
|
* @param string $elementname Name of the XML element of the target
|
|
*/
|
|
public static function copy(&$source, &$target, $elementname) {
|
|
if (count($source->children()) == 0)
|
|
$target->addChild($elementname, xmlify($source));
|
|
else {
|
|
$child = $target->addChild($elementname);
|
|
foreach ($source->children() AS $childfield => $childentry)
|
|
self::copy($childentry, $child, $childfield);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Create an XML element
|
|
*
|
|
* @param object $doc XML root
|
|
* @param string $element XML element name
|
|
* @param string $value XML value
|
|
* @param array $attributes array containing the attributes
|
|
*
|
|
* @return object XML element object
|
|
*/
|
|
public static function create_element($doc, $element, $value = "", $attributes = array()) {
|
|
$element = $doc->createElement($element, xmlify($value));
|
|
|
|
foreach ($attributes AS $key => $value) {
|
|
$attribute = $doc->createAttribute($key);
|
|
$attribute->value = xmlify($value);
|
|
$element->appendChild($attribute);
|
|
}
|
|
return $element;
|
|
}
|
|
|
|
/**
|
|
* @brief Create an XML and append it to the parent object
|
|
*
|
|
* @param object $doc XML root
|
|
* @param object $parent parent object
|
|
* @param string $element XML element name
|
|
* @param string $value XML value
|
|
* @param array $attributes array containing the attributes
|
|
*/
|
|
public static function add_element($doc, $parent, $element, $value = "", $attributes = array()) {
|
|
$element = self::create_element($doc, $element, $value, $attributes);
|
|
$parent->appendChild($element);
|
|
}
|
|
|
|
/**
|
|
* @brief Convert an XML document to a normalised, case-corrected array
|
|
* used by webfinger
|
|
*
|
|
* @param object $xml_element The XML document
|
|
* @param integer $recursion_depth recursion counter for internal use - default 0
|
|
* internal use, recursion counter
|
|
*
|
|
* @return array | sring The array from the xml element or the string
|
|
*/
|
|
public static function element_to_array($xml_element, &$recursion_depth=0) {
|
|
|
|
// If we're getting too deep, bail out
|
|
if ($recursion_depth > 512) {
|
|
return(null);
|
|
}
|
|
|
|
if (!is_string($xml_element) &&
|
|
!is_array($xml_element) &&
|
|
(get_class($xml_element) == 'SimpleXMLElement')) {
|
|
$xml_element_copy = $xml_element;
|
|
$xml_element = get_object_vars($xml_element);
|
|
}
|
|
|
|
if (is_array($xml_element)) {
|
|
$result_array = array();
|
|
if (count($xml_element) <= 0) {
|
|
return (trim(strval($xml_element_copy)));
|
|
}
|
|
|
|
foreach($xml_element as $key=>$value) {
|
|
|
|
$recursion_depth++;
|
|
$result_array[strtolower($key)] =
|
|
self::element_to_array($value, $recursion_depth);
|
|
$recursion_depth--;
|
|
}
|
|
if ($recursion_depth == 0) {
|
|
$temp_array = $result_array;
|
|
$result_array = array(
|
|
strtolower($xml_element_copy->getName()) => $temp_array,
|
|
);
|
|
}
|
|
|
|
return ($result_array);
|
|
|
|
} else {
|
|
return (trim(strval($xml_element)));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Convert the given XML text to an array in the XML structure.
|
|
*
|
|
* xml::to_array() will convert the given XML text to an array in the XML structure.
|
|
* Link: http://www.bin-co.com/php/scripts/xml2array/
|
|
* Portions significantly re-written by mike@macgirvin.com for Friendica
|
|
* (namespaces, lowercase tags, get_attribute default changed, more...)
|
|
*
|
|
* Examples: $array = xml::to_array(file_get_contents('feed.xml'));
|
|
* $array = xml::to_array(file_get_contents('feed.xml', true, 1, 'attribute'));
|
|
*
|
|
* @param object $contents The XML text
|
|
* @param boolean $namespaces True or false include namespace information
|
|
* in the returned array as array elements.
|
|
* @param integer $get_attributes 1 or 0. If this is 1 the function will get the attributes as well as the tag values -
|
|
* this results in a different array structure in the return value.
|
|
* @param string $priority Can be 'tag' or 'attribute'. This will change the way the resulting
|
|
* array sturcture. For 'tag', the tags are given more importance.
|
|
*
|
|
* @return array The parsed XML in an array form. Use print_r() to see the resulting array structure.
|
|
*/
|
|
public static function to_array($contents, $namespaces = true, $get_attributes=1, $priority = 'attribute') {
|
|
if(!$contents) return array();
|
|
|
|
if(!function_exists('xml_parser_create')) {
|
|
logger('xml::to_array: parser function missing');
|
|
return array();
|
|
}
|
|
|
|
|
|
libxml_use_internal_errors(true);
|
|
libxml_clear_errors();
|
|
|
|
if($namespaces)
|
|
$parser = @xml_parser_create_ns("UTF-8",':');
|
|
else
|
|
$parser = @xml_parser_create();
|
|
|
|
if(! $parser) {
|
|
logger('xml::to_array: xml_parser_create: no resource');
|
|
return array();
|
|
}
|
|
|
|
xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8");
|
|
// http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss
|
|
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
|
|
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
|
|
@xml_parse_into_struct($parser, trim($contents), $xml_values);
|
|
@xml_parser_free($parser);
|
|
|
|
if(! $xml_values) {
|
|
logger('xml::to_array: libxml: parse error: ' . $contents, LOGGER_DATA);
|
|
foreach(libxml_get_errors() as $err)
|
|
logger('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message, LOGGER_DATA);
|
|
libxml_clear_errors();
|
|
return;
|
|
}
|
|
|
|
//Initializations
|
|
$xml_array = array();
|
|
$parents = array();
|
|
$opened_tags = array();
|
|
$arr = array();
|
|
|
|
$current = &$xml_array; // Reference
|
|
|
|
// Go through the tags.
|
|
$repeated_tag_index = array(); // Multiple tags with same name will be turned into an array
|
|
foreach($xml_values as $data) {
|
|
unset($attributes,$value); // Remove existing values, or there will be trouble
|
|
|
|
// This command will extract these variables into the foreach scope
|
|
// tag(string), type(string), level(int), attributes(array).
|
|
extract($data); // We could use the array by itself, but this cooler.
|
|
|
|
$result = array();
|
|
$attributes_data = array();
|
|
|
|
if(isset($value)) {
|
|
if($priority == 'tag') $result = $value;
|
|
else $result['value'] = $value; // Put the value in a assoc array if we are in the 'Attribute' mode
|
|
}
|
|
|
|
//Set the attributes too.
|
|
if(isset($attributes) and $get_attributes) {
|
|
foreach($attributes as $attr => $val) {
|
|
if($priority == 'tag') $attributes_data[$attr] = $val;
|
|
else $result['@attributes'][$attr] = $val; // Set all the attributes in a array called 'attr'
|
|
}
|
|
}
|
|
|
|
// See tag status and do the needed.
|
|
if($namespaces && strpos($tag,':')) {
|
|
$namespc = substr($tag,0,strrpos($tag,':'));
|
|
$tag = strtolower(substr($tag,strlen($namespc)+1));
|
|
$result['@namespace'] = $namespc;
|
|
}
|
|
$tag = strtolower($tag);
|
|
|
|
if($type == "open") { // The starting of the tag '<tag>'
|
|
$parent[$level-1] = &$current;
|
|
if(!is_array($current) or (!in_array($tag, array_keys($current)))) { // Insert New tag
|
|
$current[$tag] = $result;
|
|
if($attributes_data) $current[$tag. '_attr'] = $attributes_data;
|
|
$repeated_tag_index[$tag.'_'.$level] = 1;
|
|
|
|
$current = &$current[$tag];
|
|
|
|
} else { // There was another element with the same tag name
|
|
|
|
if(isset($current[$tag][0])) { // If there is a 0th element it is already an array
|
|
$current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result;
|
|
$repeated_tag_index[$tag.'_'.$level]++;
|
|
} else { // This section will make the value an array if multiple tags with the same name appear together
|
|
$current[$tag] = array($current[$tag],$result); // This will combine the existing item and the new item together to make an array
|
|
$repeated_tag_index[$tag.'_'.$level] = 2;
|
|
|
|
if(isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well
|
|
$current[$tag]['0_attr'] = $current[$tag.'_attr'];
|
|
unset($current[$tag.'_attr']);
|
|
}
|
|
|
|
}
|
|
$last_item_index = $repeated_tag_index[$tag.'_'.$level]-1;
|
|
$current = &$current[$tag][$last_item_index];
|
|
}
|
|
|
|
} elseif($type == "complete") { // Tags that ends in 1 line '<tag />'
|
|
//See if the key is already taken.
|
|
if(!isset($current[$tag])) { //New Key
|
|
$current[$tag] = $result;
|
|
$repeated_tag_index[$tag.'_'.$level] = 1;
|
|
if($priority == 'tag' and $attributes_data) $current[$tag. '_attr'] = $attributes_data;
|
|
|
|
} else { // If taken, put all things inside a list(array)
|
|
if(isset($current[$tag][0]) and is_array($current[$tag])) { // If it is already an array...
|
|
|
|
// ...push the new element into that array.
|
|
$current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result;
|
|
|
|
if($priority == 'tag' and $get_attributes and $attributes_data) {
|
|
$current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data;
|
|
}
|
|
$repeated_tag_index[$tag.'_'.$level]++;
|
|
|
|
} else { // If it is not an array...
|
|
$current[$tag] = array($current[$tag],$result); //...Make it an array using using the existing value and the new value
|
|
$repeated_tag_index[$tag.'_'.$level] = 1;
|
|
if($priority == 'tag' and $get_attributes) {
|
|
if(isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well
|
|
|
|
$current[$tag]['0_attr'] = $current[$tag.'_attr'];
|
|
unset($current[$tag.'_attr']);
|
|
}
|
|
|
|
if($attributes_data) {
|
|
$current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data;
|
|
}
|
|
}
|
|
$repeated_tag_index[$tag.'_'.$level]++; // 0 and 1 indexes are already taken
|
|
}
|
|
}
|
|
|
|
} elseif($type == 'close') { // End of tag '</tag>'
|
|
$current = &$parent[$level-1];
|
|
}
|
|
}
|
|
|
|
return($xml_array);
|
|
}
|
|
}
|
|
?>
|