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-rw-r--r--include/network.php166
1 files changed, 165 insertions, 1 deletions
diff --git a/include/network.php b/include/network.php
index 1a974a681..614049299 100644
--- a/include/network.php
+++ b/include/network.php
@@ -965,4 +965,168 @@ logger('fetch_xrd_links: ' . $url);
logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
return $links;
-} \ No newline at end of file
+}
+
+
+function scrape_vcard($url) {
+
+ $a = get_app();
+
+ $ret = array();
+
+ logger('scrape_vcard: url=' . $url);
+
+ $x = z_fetch_url($url);
+ if(! $x['success'])
+ return $ret;
+
+ $s = $x['body'];
+
+ if(! $s)
+ return $ret;
+
+ $headers = $x['header'];
+ $lines = explode("\n",$headers);
+ if(count($lines)) {
+ foreach($lines as $line) {
+ // don't try and run feeds through the html5 parser
+ if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
+ return ret;
+ }
+ }
+
+ try {
+ $dom = HTML5_Parser::parse($s);
+ } catch (DOMException $e) {
+ logger('scrape_vcard: parse error: ' . $e);
+ }
+
+ if(! $dom)
+ return $ret;
+
+ // Pull out hCard profile elements
+
+ $largest_photo = 0;
+
+ $items = $dom->getElementsByTagName('*');
+ foreach($items as $item) {
+ if(attribute_contains($item->getAttribute('class'), 'vcard')) {
+ $level2 = $item->getElementsByTagName('*');
+ foreach($level2 as $x) {
+ if(attribute_contains($x->getAttribute('class'),'fn'))
+ $ret['fn'] = $x->textContent;
+ if((attribute_contains($x->getAttribute('class'),'photo'))
+ || (attribute_contains($x->getAttribute('class'),'avatar'))) {
+ $size = intval($x->getAttribute('width'));
+ if(($size > $largest_photo) || (! $largest_photo)) {
+ $ret['photo'] = $x->getAttribute('src');
+ $largest_photo = $size;
+ }
+ }
+ if((attribute_contains($x->getAttribute('class'),'nickname'))
+ || (attribute_contains($x->getAttribute('class'),'uid'))) {
+ $ret['nick'] = $x->textContent;
+ }
+ }
+ }
+ }
+
+ return $ret;
+}
+
+
+
+function scrape_feed($url) {
+
+ $a = get_app();
+
+ $ret = array();
+ $level = 0;
+ $x = z_fetch_url($url,false,$level,array('novalidate' => true));
+
+ if(! $x['success'])
+ return $ret;
+
+ $headers = $x['header'];
+ $code = $x['return_code'];
+ $s = $x['body'];
+
+ logger('scrape_feed: returns: ' . $code . ' headers=' . $headers, LOGGER_DEBUG);
+
+ if(! $s) {
+ logger('scrape_feed: no data returned for ' . $url);
+ return $ret;
+ }
+
+
+ $lines = explode("\n",$headers);
+ if(count($lines)) {
+ foreach($lines as $line) {
+ if(stristr($line,'content-type:')) {
+ if(stristr($line,'application/atom+xml') || stristr($s,'<feed')) {
+ $ret['feed_atom'] = $url;
+ return $ret;
+ }
+ if(stristr($line,'application/rss+xml') || stristr($s,'<rss')) {
+ $ret['feed_rss'] = $url;
+ return $ret;
+ }
+ }
+ }
+ // perhaps an RSS version 1 feed with a generic or incorrect content-type?
+ if(stristr($s,'</item>')) {
+ $ret['feed_rss'] = $url;
+ return $ret;
+ }
+ }
+
+ try {
+ $dom = HTML5_Parser::parse($s);
+ } catch (DOMException $e) {
+ logger('scrape_feed: parse error: ' . $e);
+ }
+
+ if(! $dom) {
+ logger('scrape_feed: failed to parse.');
+ return $ret;
+ }
+
+
+ $head = $dom->getElementsByTagName('base');
+ if($head) {
+ foreach($head as $head0) {
+ $basename = $head0->getAttribute('href');
+ break;
+ }
+ }
+ if(! $basename)
+ $basename = implode('/', array_slice(explode('/',$url),0,3)) . '/';
+
+ $items = $dom->getElementsByTagName('link');
+
+ // get Atom/RSS link elements, take the first one of either.
+
+ if($items) {
+ foreach($items as $item) {
+ $x = $item->getAttribute('rel');
+ if(($x === 'alternate') && ($item->getAttribute('type') === 'application/atom+xml')) {
+ if(! x($ret,'feed_atom'))
+ $ret['feed_atom'] = $item->getAttribute('href');
+ }
+ if(($x === 'alternate') && ($item->getAttribute('type') === 'application/rss+xml')) {
+ if(! x($ret,'feed_rss'))
+ $ret['feed_rss'] = $item->getAttribute('href');
+ }
+ }
+ }
+
+ // Drupal and perhaps others only provide relative URL's. Turn them into absolute.
+
+ if(x($ret,'feed_atom') && (! strstr($ret['feed_atom'],'://')))
+ $ret['feed_atom'] = $basename . $ret['feed_atom'];
+ if(x($ret,'feed_rss') && (! strstr($ret['feed_rss'],'://')))
+ $ret['feed_rss'] = $basename . $ret['feed_rss'];
+
+ return $ret;
+}
+