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<?php
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/**
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* @file
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* Contains FeedsSitemapParser and related classes.
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*/
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/**
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* A parser for the Sitemap specification http://www.sitemaps.org/protocol.php.
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*/
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class FeedsSitemapParser extends FeedsParser {
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/**
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* Implements FeedsParser::parse().
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*/
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public function parse(FeedsSource $source, FeedsFetcherResult $fetcher_result) {
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// Set time zone to GMT for parsing dates with strtotime().
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$tz = date_default_timezone_get();
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date_default_timezone_set('GMT');
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// Yes, using a DOM parser is a bit inefficient, but will do for now.
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$xml = new SimpleXMLElement($fetcher_result->getRaw());
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$result = new FeedsParserResult();
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foreach ($xml->url as $url) {
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$item = array('url' => (string) $url->loc);
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if ($url->lastmod) {
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$item['lastmod'] = strtotime($url->lastmod);
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}
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if ($url->changefreq) {
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$item['changefreq'] = (string) $url->changefreq;
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}
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if ($url->priority) {
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$item['priority'] = (string) $url->priority;
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}
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$result->items[] = $item;
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}
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date_default_timezone_set($tz);
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return $result;
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}
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/**
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* Implements FeedsParser::getMappingSources().
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*/
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public function getMappingSources() {
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return array(
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'url' => array(
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'name' => t('Item URL (link)'),
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'description' => t('URL of the feed item.'),
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),
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'lastmod' => array(
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'name' => t('Last modification date'),
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'description' => t('Last modified date as UNIX time GMT of the feed item.'),
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),
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'changefreq' => array(
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'name' => t('Change frequency'),
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'description' => t('How frequently the page is likely to change.'),
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),
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'priority' => array(
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'name' => t('Priority'),
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'description' => t('The priority of this URL relative to other URLs on the site.'),
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),
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) + parent::getMappingSources();
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}
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}
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