function atomrdf_parse in Feeds Atom 6
Same name and namespace in other branches
- 7 libraries/atomrdf_parser.inc \atomrdf_parse()
Parse AtomRDF format - for example:
<entry> <title>Week in DC Tech: April 12th Edition</title> <id>19</id> <updated>2010-04-29T12:02:55-07:00</updated> <published>2010-04-12T12:16:31-07:00</published> <author><name></name></author> <content type="application/rdf+xml" xml:lang="en"> <RDF> <entity> <title>Week in DC Tech: April 12th Edition </title> <properties> <created>2010-04-12T12:16:31-07:00</created> <changed>2010-04-29T12:02:55-07:00</changed> <uid>0</uid> <status>1</status> <promote>1</promote> </properties> </entity> <field type="number_float" name="field_superlative"> <field-instance> <column name="value">1234.57</column> </field-instance> </field> </RDF> </content> </entry>
1 call to atomrdf_parse()
- atomrdf_parser_parse in libraries/
atomrdf_parser.inc - Parse the feed into a data structure.
File
- libraries/
atomrdf_parser.inc, line 106 - Contains the atomrd parsing functions.
Code
function atomrdf_parse($feed_XML, $feed_raw) {
// declare normalized view of feed that will be returned when this method is done
$parsed_source = array();
// valid base?
$base = (string) array_shift($feed_XML
->xpath("@base"));
if (!valid_url($base, TRUE)) {
$base = FALSE;
}
/*
// Unused right now:
// Declare some canonical standard prefixes for well-known namespaces:
static $canonical_namespaces = array(
"content" => "http://purl.org/rss/1.0/modules/content/",
"dc" => "http://purl.org/dc/elements/1.1/",
'rdf' => 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
'rdfs' => 'http://www.w3.org/2000/01/rdf-schema#',
'xsi' => 'http://www.w3.org/2001/XMLSchema-instance#',
'xsd' => 'http://www.w3.org/2001/XMLSchema#',
'owl' => 'http://www.w3.org/2002/07/owl#',
'dcterms' => 'http://purl.org/dc/terms/',
'dcmitype' => 'http://purl.org/dc/dcmitype/',
'foaf' => 'http://xmlns.com/foaf/0.1/',
'rss' => 'http://purl.org/rss/1.0/',
);
// Also get any other namespaces declared in the feed
$namespaces = version_compare(phpversion(), '5.1.2', '<') ? array() : $feed_XML->getNamespaces(TRUE);
*/
// feed metadata
if (TRUE) {
// feed title
$parsed_source['title'] = isset($feed_XML->title) ? _parser_common_syndication_title("{$feed_XML->title}") : "";
// feed description
$parsed_source['description'] = isset($feed_XML->subtitle) ? "{$feed_XML->subtitle}" : "";
// feed link
$parsed_source['link'] = _parser_common_syndication_link($feed_XML->link);
if (valid_url($parsed_source['link']) && !valid_url($parsed_source['link'], TRUE) && !empty($base)) {
$parsed_source['link'] = $base . $parsed_source['link'];
}
}
$parsed_source['items'] = array();
// Parse out each entry in the feed.
foreach ($feed_XML->entry as $news) {
// Sometimes the id is the URL
$original_url = NULL;
$guid = !empty($news->id) ? "{$news->id}" : NULL;
if (valid_url($guid, TRUE)) {
$original_url = $guid;
}
/*
// Unused right now:
// Pull out RDF statements and normalize the prefixes
// Actually there's no point in doing this since AtomRDF keeps RDF in a separate bucket.
$rdf_data = array();
foreach ($namespaces as $ns => $ns_uri) {
foreach ($rss_item->attributes($ns_uri) as $attr_name => $attr_value) {
$ns_prefix = ($ns_prefix = array_search($ns_uri, $canonical_namespaces)) ? $ns_prefix : $ns;
$rdf_data[$ns_prefix .':'. $attr_name][] = (string)$attr_value;
}
foreach ($rss_item->children($ns_uri) as $rss_property) {
$ns_prefix = ($ns_prefix = array_search($ns_uri, $canonical_namespaces)) ? $ns_prefix : $ns;
$rdf_data[$ns_prefix .':'. $rss_property->getName()][] = (string)$rss_property;
}
}
*/
// taxonomies
$additional_taxonomies = array();
if (isset($news->category)) {
$additional_taxonomies['ATOM Categories'] = array();
$additional_taxonomies['ATOM Domains'] = array();
foreach ($news->category as $category) {
if (isset($category['scheme'])) {
$domain = "{$category['scheme']}";
if (!empty($domain)) {
if (!isset($additional_taxonomies['ATOM Domains'][$domain])) {
$additional_taxonomies['ATOM Domains'][$domain] = array();
}
$additional_taxonomies['ATOM Domains'][$domain][] = count($additional_taxonomies['ATOM Categories']) - 1;
}
}
$additional_taxonomies['ATOM Categories'][] = "{$category['term']}";
}
}
// title
$title = "{$news->title}";
// body
$body = '';
if (!empty($news->content)) {
foreach ($news->content
->children() as $child) {
$body .= $child
->asXML();
}
$body .= "{$news->content}";
}
elseif (!empty($news->summary)) {
foreach ($news->summary
->children() as $child) {
$body .= $child
->asXML();
}
$body .= "{$news->summary}";
}
// author
$author_found = FALSE;
if (!empty($news->source->author->name)) {
$original_author = "{$news->source->author->name}";
if (!empty($news->source->author->email)) {
$original_author_email = "{$news->source->author->email}";
}
if (!empty($news->source->author->uri)) {
$original_author_uri = "{$news->source->author->uri}";
}
$author_found = TRUE;
}
elseif (!empty($news->author->name)) {
$original_author = "{$news->author->name}";
if (!empty($news->author->email)) {
$original_author_email = "{$news->author->email}";
}
if (!empty($news->author->uri)) {
$original_author_uri = "{$news->author->uri}";
}
$author_found = TRUE;
}
if (!empty($feed_XML->author->name) && !$author_found) {
$original_author = "{$feed_XML->author->name}";
if (!empty($feed_XML->author->email)) {
$original_author_email = "{$feed_XML->author->email}";
}
if (!empty($feed_XML->author->uri)) {
$original_author_uri = "{$feed_XML->author->uri}";
}
}
// some src elements in some valid atom feeds contained no urls at all
$original_url = _parser_common_syndication_link($news->link);
if (!$original_url && !empty($news->content['src'])) {
if (valid_url("{$news->content['src']}", TRUE)) {
$original_url = "{$news->content['src']}";
}
}
// Parse out atom values and store them
$item = array();
$item['guid'] = !empty($guid) ? $guid : $item['url'];
$item['url'] = trim($original_url);
if (valid_url($item['url']) && !valid_url($item['url'], TRUE) && !empty($base)) {
$item['url'] = $base . $item['url'];
}
$item['title'] = _parser_common_syndication_title($title, $body);
$item['description'] = $body;
$item['author_name'] = $original_author;
$item['author_email'] = $original_author_email;
$item['author_uri'] = $original_author_uri;
$item['timestamp'] = _parser_common_syndication_parse_date(isset($news->published) ? "{$news->published}" : "{$news->issued}");
$item['tags'] = isset($additional_taxonomies['ATOM Categories']) ? $additional_taxonomies['ATOM Categories'] : array();
$item['domains'] = isset($additional_taxonomies['ATOM Domains']) ? $additional_taxonomies['ATOM Domains'] : array();
// Parse out RDF values
$rdf = $news->content ? $news->content : $news;
$rdfns1 = $rdf
->children("http://www.w3.org/1999/02/22-rdf-syntax-ns#");
if ($rdfns1) {
$rdfns2 = $rdfns1
->children("http://drupal.org/");
if ($rdfns2) {
$item['rdf'] = atomrdf_custom_copy($rdfns2);
}
}
// Store this item
$parsed_source['items'][] = $item;
}
// Add any deleted items to the parsed data. These items follow the proposed
// Atom Tombstone specification: http://tools.ietf.org/html/draft-snell-atompub-tombstones-06
// @todo Ignore deleted-entry items that have a newer entry item.
//$parsed_source['deleted'] = array();
if (in_array(FEEDS_ATOM_TOMBSTONE_NAMESPACE, $feed_XML
->getDocNamespaces())) {
foreach ($feed_XML
->xpath('at:deleted-entry') as $deleted) {
$item = array(
'guid' => "{$deleted['ref']}",
'deleted' => TRUE,
'deleted_when' => "{$deleted['when']}",
'deleted_by' => array(
'name' => '',
'email' => '',
),
);
// We really should also be parsing out the by, name, and email information, too.
// However, because the XML namespace changes for those sub elements it is
// ridiculously hard to parse out in PHP, due to PHP sucking. Since they're
// not required parts of the tombstone definition, and not needed for just
// delete-and-forget processing, we're going to ignore them.
// @todo When we figure out how to parse that XML in the insanity that is
// PHP, add that in here as well.
$parsed_source['items'][] = $item;
//$parsed_source['deleted']["{$deleted['ref']}"] = $record;
}
}
// Return list of items
return $parsed_source;
}