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authorfriendica <info@friendica.com>2012-05-16 21:29:57 -0700
committerfriendica <info@friendica.com>2012-05-16 21:29:57 -0700
commit4f0e26759c2cc6cc08adc2bd94e85e4821194f2b (patch)
treedf3c67b8f758483a075802a2522ea7b999d8ccca
parentf5f345d388c9f1f0a47bad75c933d1bfe723773d (diff)
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bring in the *much better* xml parser from the original zot branch
-rw-r--r--include/network.php164
1 files changed, 164 insertions, 0 deletions
diff --git a/include/network.php b/include/network.php
index 27a45ec40..eeb2460d1 100644
--- a/include/network.php
+++ b/include/network.php
@@ -876,3 +876,167 @@ function fix_contact_ssl_policy(&$contact,$new_policy) {
}
}
+
+
+/**
+ * xml2array() 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...)
+ * Arguments : $contents - The XML text
+ * $namespaces - true or false include namespace information in the returned array as array elements.
+ * $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.
+ * $priority - Can be 'tag' or 'attribute'. This will change the way the resulting array sturcture. For 'tag', the tags are given more importance.
+ * Return: The parsed XML in an array form. Use print_r() to see the resulting array structure.
+ * Examples: $array = xml2array(file_get_contents('feed.xml'));
+ * $array = xml2array(file_get_contents('feed.xml', true, 1, 'attribute'));
+ */
+
+function xml2array($contents, $namespaces = true, $get_attributes=1, $priority = 'attribute') {
+ if(!$contents) return array();
+
+ if(!function_exists('xml_parser_create')) {
+ logger('xml2array: 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(! $parser) {
+ logger('xml2array: xml_parser_create: no resource');
+ return array();
+ }
+
+ xml_parser_set_option($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('xml2array: 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);
+}