930 lines
		
	
	
	
		
			26 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			930 lines
		
	
	
	
		
			26 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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require_once('library/HTML5/Parser.php');
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require_once('include/crypto.php');
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require_once('include/feed.php');
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if(! function_exists('scrape_dfrn')) {
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function scrape_dfrn($url, $dont_probe = false) {
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	$a = get_app();
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	$ret = array();
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	logger('scrape_dfrn: url=' . $url);
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	// Try to fetch the data from noscrape. This is faster than parsing the HTML
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	$noscrape = str_replace("/hcard/", "/noscrape/", $url);
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	$noscrapejson = fetch_url($noscrape);
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	$noscrapedata = array();
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	if ($noscrapejson) {
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		$noscrapedata = json_decode($noscrapejson, true);
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		if (is_array($noscrapedata)) {
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			if ($noscrapedata["nick"] != "")
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				return($noscrapedata);
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			else
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				unset($noscrapedata["nick"]);
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		} else
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			$noscrapedata = array();
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	}
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	$s = fetch_url($url);
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	if (!$s)
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		return $ret;
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	if (!$dont_probe) {
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		$probe = probe_url($url);
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		if (isset($probe["addr"]))
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			$ret["addr"] = $probe["addr"];
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	}
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	$headers = $a->get_curl_headers();
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	logger('scrape_dfrn: headers=' . $headers, LOGGER_DEBUG);
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	$lines = explode("\n",$headers);
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	if(count($lines)) {
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		foreach($lines as $line) {
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			// don't try and run feeds through the html5 parser
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			if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
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				return ret;
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		}
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	}
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	try {
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		$dom = HTML5_Parser::parse($s);
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	} catch (DOMException $e) {
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		logger('scrape_dfrn: parse error: ' . $e);
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	}
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	if(! $dom)
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		return $ret;
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	$items = $dom->getElementsByTagName('link');
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	// get DFRN link elements
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	foreach($items as $item) {
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		$x = $item->getAttribute('rel');
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		if(($x === 'alternate') && ($item->getAttribute('type') === 'application/atom+xml'))
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			$ret['feed_atom'] = $item->getAttribute('href');
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		if(substr($x,0,5) == "dfrn-") {
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			$ret[$x] = $item->getAttribute('href');
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		}
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		if($x === 'lrdd') {
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			$decoded = urldecode($item->getAttribute('href'));
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			if(preg_match('/acct:([^@]*)@/',$decoded,$matches))
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				$ret['nick'] = $matches[1];
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		}
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	}
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	// Pull out hCard profile elements
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	$largest_photo = 0;
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	$items = $dom->getElementsByTagName('*');
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	foreach($items as $item) {
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		if(attribute_contains($item->getAttribute('class'), 'vcard')) {
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			$level2 = $item->getElementsByTagName('*');
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			foreach($level2 as $x) {
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				if(attribute_contains($x->getAttribute('class'),'fn')) {
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					$ret['fn'] = $x->textContent;
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				}
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				if((attribute_contains($x->getAttribute('class'),'photo'))
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					|| (attribute_contains($x->getAttribute('class'),'avatar'))) {
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					$size = intval($x->getAttribute('width'));
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					// dfrn prefers 175, so if we find this, we set largest_size so it can't be topped.
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					if(($size > $largest_photo) || ($size == 175) || (! $largest_photo)) {
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						$ret['photo'] = $x->getAttribute('src');
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						$largest_photo = (($size == 175) ? 9999 : $size);
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					}
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				}
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				if(attribute_contains($x->getAttribute('class'),'key')) {
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					$ret['key'] = $x->textContent;
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				}
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			}
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		}
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	}
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	return array_merge($ret, $noscrapedata);
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}}
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if(! function_exists('validate_dfrn')) {
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function validate_dfrn($a) {
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	$errors = 0;
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	if(! x($a,'key'))
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		$errors ++;
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	if(! x($a,'dfrn-request'))
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		$errors ++;
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	if(! x($a,'dfrn-confirm'))
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		$errors ++;
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	if(! x($a,'dfrn-notify'))
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		$errors ++;
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	if(! x($a,'dfrn-poll'))
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		$errors ++;
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	return $errors;
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}}
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if(! function_exists('scrape_meta')) {
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function scrape_meta($url) {
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	$a = get_app();
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	$ret = array();
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	logger('scrape_meta: url=' . $url);
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	$s = fetch_url($url);
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	if(! $s)
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		return $ret;
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	$headers = $a->get_curl_headers();
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	logger('scrape_meta: headers=' . $headers, LOGGER_DEBUG);
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	$lines = explode("\n",$headers);
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	if(count($lines)) {
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		foreach($lines as $line) {
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			// don't try and run feeds through the html5 parser
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			if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
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				return ret;
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		}
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	}
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	try {
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		$dom = HTML5_Parser::parse($s);
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	} catch (DOMException $e) {
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		logger('scrape_meta: parse error: ' . $e);
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	}
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	if(! $dom)
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		return $ret;
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	$items = $dom->getElementsByTagName('meta');
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	// get DFRN link elements
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	foreach($items as $item) {
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		$x = $item->getAttribute('name');
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		if(substr($x,0,5) == "dfrn-")
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			$ret[$x] = $item->getAttribute('content');
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	}
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	return $ret;
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}}
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if(! function_exists('scrape_vcard')) {
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function scrape_vcard($url) {
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	$a = get_app();
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	$ret = array();
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	logger('scrape_vcard: url=' . $url);
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	$s = fetch_url($url);
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	if(! $s)
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		return $ret;
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	$headers = $a->get_curl_headers();
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	$lines = explode("\n",$headers);
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	if(count($lines)) {
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		foreach($lines as $line) {
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			// don't try and run feeds through the html5 parser
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			if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
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				return ret;
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		}
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	}
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	try {
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		$dom = HTML5_Parser::parse($s);
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	} catch (DOMException $e) {
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		logger('scrape_vcard: parse error: ' . $e);
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	}
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	if(! $dom)
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		return $ret;
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	// Pull out hCard profile elements
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	$largest_photo = 0;
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	$items = $dom->getElementsByTagName('*');
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	foreach($items as $item) {
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		if(attribute_contains($item->getAttribute('class'), 'vcard')) {
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			$level2 = $item->getElementsByTagName('*');
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			foreach($level2 as $x) {
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				if(attribute_contains($x->getAttribute('class'),'fn'))
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					$ret['fn'] = $x->textContent;
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				if((attribute_contains($x->getAttribute('class'),'photo'))
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					|| (attribute_contains($x->getAttribute('class'),'avatar'))) {
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					$size = intval($x->getAttribute('width'));
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					if(($size > $largest_photo) || (! $largest_photo)) {
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						$ret['photo'] = $x->getAttribute('src');
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						$largest_photo = $size;
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					}
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				}
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				if((attribute_contains($x->getAttribute('class'),'nickname'))
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					|| (attribute_contains($x->getAttribute('class'),'uid'))) {
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					$ret['nick'] = $x->textContent;
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				}
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			}
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		}
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	}
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	return $ret;
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}}
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if(! function_exists('scrape_feed')) {
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function scrape_feed($url) {
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	$a = get_app();
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	$ret = array();
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	$cookiejar = tempnam(get_temppath(), 'cookiejar-scrape-feed-');
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	$s = fetch_url($url, false, $redirects, 0, Null, $cookiejar);
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	unlink($cookiejar);
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	$headers = $a->get_curl_headers();
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	$code = $a->get_curl_code();
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	logger('scrape_feed: returns: ' . $code . ' headers=' . $headers, LOGGER_DEBUG);
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	if(! $s) {
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		logger('scrape_feed: no data returned for ' . $url);
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		return $ret;
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	}
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	$lines = explode("\n",$headers);
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	if(count($lines)) {
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		foreach($lines as $line) {
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			if(stristr($line,'content-type:')) {
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				if(stristr($line,'application/atom+xml') || stristr($s,'<feed')) {
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					$ret['feed_atom'] = $url;
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					return $ret;
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				}
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				if(stristr($line,'application/rss+xml') || stristr($s,'<rss')) {
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					$ret['feed_rss'] = $url;
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					return $ret;
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				}
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			}
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		}
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		// perhaps an RSS version 1 feed with a generic or incorrect content-type?
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		if(stristr($s,'</item>')) {
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			$ret['feed_rss'] = $url;
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			return $ret;
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		}
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	}
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	$basename = implode('/', array_slice(explode('/',$url),0,3)) . '/';
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	$doc = new DOMDocument();
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	@$doc->loadHTML($s);
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	$xpath = new DomXPath($doc);
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	$base = $xpath->query("//base");
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	foreach ($base as $node) {
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		$attr = array();
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		if ($node->attributes->length)
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			foreach ($node->attributes as $attribute)
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				$attr[$attribute->name] = $attribute->value;
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		if ($attr["href"] != "")
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			$basename = $attr["href"] ;
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	}
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	$list = $xpath->query("//link");
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						|
	foreach ($list as $node) {
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		$attr = array();
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						|
		if ($node->attributes->length)
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						|
			foreach ($node->attributes as $attribute)
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				$attr[$attribute->name] = $attribute->value;
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		if (($attr["rel"] == "alternate") AND ($attr["type"] == "application/atom+xml"))
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			$ret["feed_atom"] = $attr["href"];
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						|
		if (($attr["rel"] == "alternate") AND ($attr["type"] == "application/rss+xml"))
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			$ret["feed_rss"] = $attr["href"];
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	}
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	// Drupal and perhaps others only provide relative URLs. Turn them into absolute.
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	if(x($ret,'feed_atom') && (! strstr($ret['feed_atom'],'://')))
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		$ret['feed_atom'] = $basename . $ret['feed_atom'];
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	if(x($ret,'feed_rss') && (! strstr($ret['feed_rss'],'://')))
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		$ret['feed_rss'] = $basename . $ret['feed_rss'];
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	return $ret;
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}}
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/**
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 *
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 * Probe a network address to discover what kind of protocols we need to communicate with it.
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 *
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 * Warning: this function is a bit touchy and there are some subtle dependencies within the logic flow.
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 * Edit with care.
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 *
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 */
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/**
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 *
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 * PROBE_DIASPORA has a bias towards returning Diaspora information
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 * while PROBE_NORMAL has a bias towards dfrn/zot - in the case where
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 * an address (such as a Friendica address) supports more than one type
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 * of network.
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 *
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 */
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define ( 'PROBE_NORMAL',   0);
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define ( 'PROBE_DIASPORA', 1);
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function probe_url($url, $mode = PROBE_NORMAL, $level = 1) {
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	require_once('include/email.php');
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	$result = array();
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						|
	if (!$url)
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		return $result;
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 | 
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	$result = Cache::get("probe_url:".$mode.":".$url);
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						|
	if (!is_null($result)) {
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		$result = unserialize($result);
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		return $result;
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	}
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						|
 | 
						|
	$original_url = $url;
 | 
						|
	$network = null;
 | 
						|
	$diaspora = false;
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						|
	$diaspora_base = '';
 | 
						|
	$diaspora_guid = '';
 | 
						|
	$diaspora_key = '';
 | 
						|
	$has_lrdd = false;
 | 
						|
	$email_conversant = false;
 | 
						|
	$connectornetworks = false;
 | 
						|
	$appnet = false;
 | 
						|
 | 
						|
	if (strpos($url,'twitter.com')) {
 | 
						|
		$connectornetworks = true;
 | 
						|
		$network = NETWORK_TWITTER;
 | 
						|
	}
 | 
						|
 | 
						|
	$lastfm  = ((strpos($url,'last.fm/user') !== false) ? true : false);
 | 
						|
 | 
						|
	$at_addr = ((strpos($url,'@') !== false) ? true : false);
 | 
						|
 | 
						|
	if((!$appnet) && (!$lastfm) && !$connectornetworks) {
 | 
						|
 | 
						|
		if(strpos($url,'mailto:') !== false && $at_addr) {
 | 
						|
			$url = str_replace('mailto:','',$url);
 | 
						|
			$links = array();
 | 
						|
		}
 | 
						|
		else
 | 
						|
			$links = lrdd($url);
 | 
						|
 | 
						|
		if ((count($links) == 0) AND strstr($url, "/index.php")) {
 | 
						|
			$url = str_replace("/index.php", "", $url);
 | 
						|
			$links = lrdd($url);
 | 
						|
		}
 | 
						|
 | 
						|
		if (count($links)) {
 | 
						|
			$has_lrdd = true;
 | 
						|
 | 
						|
			logger('probe_url: found lrdd links: ' . print_r($links,true), LOGGER_DATA);
 | 
						|
			foreach($links as $link) {
 | 
						|
				if($link['@attributes']['rel'] === NAMESPACE_ZOT)
 | 
						|
					$zot = unamp($link['@attributes']['href']);
 | 
						|
				if($link['@attributes']['rel'] === NAMESPACE_DFRN)
 | 
						|
					$dfrn = unamp($link['@attributes']['href']);
 | 
						|
				if($link['@attributes']['rel'] === 'salmon')
 | 
						|
					$notify = unamp($link['@attributes']['href']);
 | 
						|
				if($link['@attributes']['rel'] === NAMESPACE_FEED)
 | 
						|
					$poll = unamp($link['@attributes']['href']);
 | 
						|
				if($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
 | 
						|
					$hcard = unamp($link['@attributes']['href']);
 | 
						|
				if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
 | 
						|
					$profile = unamp($link['@attributes']['href']);
 | 
						|
				if($link['@attributes']['rel'] === 'http://portablecontacts.net/spec/1.0')
 | 
						|
					$poco = unamp($link['@attributes']['href']);
 | 
						|
				if($link['@attributes']['rel'] === 'http://joindiaspora.com/seed_location') {
 | 
						|
					$diaspora_base = unamp($link['@attributes']['href']);
 | 
						|
					$diaspora = true;
 | 
						|
				}
 | 
						|
				if($link['@attributes']['rel'] === 'http://joindiaspora.com/guid') {
 | 
						|
					$diaspora_guid = unamp($link['@attributes']['href']);
 | 
						|
					$diaspora = true;
 | 
						|
				}
 | 
						|
				if($link['@attributes']['rel'] === 'diaspora-public-key') {
 | 
						|
					$diaspora_key = base64_decode(unamp($link['@attributes']['href']));
 | 
						|
					if(strstr($diaspora_key,'RSA '))
 | 
						|
						$pubkey = rsatopem($diaspora_key);
 | 
						|
					else
 | 
						|
						$pubkey = $diaspora_key;
 | 
						|
					$diaspora = true;
 | 
						|
				}
 | 
						|
				if(($link['@attributes']['rel'] === 'http://ostatus.org/schema/1.0/subscribe') AND ($mode == PROBE_NORMAL)) {
 | 
						|
					$diaspora = false;
 | 
						|
				}
 | 
						|
			}
 | 
						|
 | 
						|
			// Status.Net can have more than one profile URL. We need to match the profile URL
 | 
						|
			// to a contact on incoming messages to prevent spam, and we won't know which one
 | 
						|
			// to match. So in case of two, one of them is stored as an alias. Only store URL's
 | 
						|
			// and not webfinger user@host aliases. If they've got more than two non-email style
 | 
						|
			// aliases, let's hope we're lucky and get one that matches the feed author-uri because
 | 
						|
			// otherwise we're screwed.
 | 
						|
 | 
						|
			$backup_alias = "";
 | 
						|
 | 
						|
			foreach($links as $link) {
 | 
						|
				if($link['@attributes']['rel'] === 'alias') {
 | 
						|
					if(strpos($link['@attributes']['href'],'@') === false) {
 | 
						|
						if(isset($profile)) {
 | 
						|
							$alias_url = $link['@attributes']['href'];
 | 
						|
 | 
						|
							if(($alias_url !== $profile) AND ($backup_alias == "") AND
 | 
						|
								($alias_url !== str_replace("/index.php", "", $profile)))
 | 
						|
								$backup_alias = $alias_url;
 | 
						|
 | 
						|
							if(($alias_url !== $profile) AND !strstr($alias_url, "index.php") AND
 | 
						|
								($alias_url !== str_replace("/index.php", "", $profile)))
 | 
						|
								$alias = $alias_url;
 | 
						|
						}
 | 
						|
						else
 | 
						|
							$profile = unamp($link['@attributes']['href']);
 | 
						|
					}
 | 
						|
				}
 | 
						|
			}
 | 
						|
 | 
						|
			if ($alias == "")
 | 
						|
				$alias = $backup_alias;
 | 
						|
 | 
						|
			// If the profile is different from the url then the url is abviously an alias
 | 
						|
			if (($alias == "") AND ($profile != "") AND !$at_addr AND (normalise_link($profile) != normalise_link($url)))
 | 
						|
				$alias = $url;
 | 
						|
		}
 | 
						|
		elseif($mode == PROBE_NORMAL) {
 | 
						|
 | 
						|
			// Check email
 | 
						|
 | 
						|
			$orig_url = $url;
 | 
						|
			if((strpos($orig_url,'@')) && validate_email($orig_url)) {
 | 
						|
				$x = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1",
 | 
						|
					intval(local_user())
 | 
						|
				);
 | 
						|
				$r = q("SELECT * FROM `mailacct` WHERE `uid` = %d AND `server` != '' LIMIT 1",
 | 
						|
					intval(local_user())
 | 
						|
				);
 | 
						|
				if(count($x) && count($r)) {
 | 
						|
					$mailbox = construct_mailbox_name($r[0]);
 | 
						|
					$password = '';
 | 
						|
					openssl_private_decrypt(hex2bin($r[0]['pass']),$password,$x[0]['prvkey']);
 | 
						|
					$mbox = email_connect($mailbox,$r[0]['user'],$password);
 | 
						|
					if(! $mbox)
 | 
						|
						logger('probe_url: email_connect failed.');
 | 
						|
					unset($password);
 | 
						|
				}
 | 
						|
				if($mbox) {
 | 
						|
					$msgs = email_poll($mbox,$orig_url);
 | 
						|
					logger('probe_url: searching ' . $orig_url . ', ' . count($msgs) . ' messages found.', LOGGER_DEBUG);
 | 
						|
					if(count($msgs)) {
 | 
						|
						$addr = $orig_url;
 | 
						|
						$network = NETWORK_MAIL;
 | 
						|
						$name = substr($url,0,strpos($url,'@'));
 | 
						|
						$phost = substr($url,strpos($url,'@')+1);
 | 
						|
						$profile = 'http://' . $phost;
 | 
						|
						// fix nick character range
 | 
						|
						$vcard = array('fn' => $name, 'nick' => $name, 'photo' => avatar_img($url));
 | 
						|
						$notify = 'smtp ' . random_string();
 | 
						|
						$poll = 'email ' . random_string();
 | 
						|
						$priority = 0;
 | 
						|
						$x = email_msg_meta($mbox,$msgs[0]);
 | 
						|
						if(stristr($x[0]->from,$orig_url))
 | 
						|
							$adr = imap_rfc822_parse_adrlist($x[0]->from,'');
 | 
						|
						elseif(stristr($x[0]->to,$orig_url))
 | 
						|
							$adr = imap_rfc822_parse_adrlist($x[0]->to,'');
 | 
						|
						if(isset($adr)) {
 | 
						|
							foreach($adr as $feadr) {
 | 
						|
								if((strcasecmp($feadr->mailbox,$name) == 0)
 | 
						|
									&&(strcasecmp($feadr->host,$phost) == 0)
 | 
						|
									&& (strlen($feadr->personal))) {
 | 
						|
 | 
						|
									$personal = imap_mime_header_decode($feadr->personal);
 | 
						|
									$vcard['fn'] = "";
 | 
						|
									foreach($personal as $perspart)
 | 
						|
										if ($perspart->charset != "default")
 | 
						|
											$vcard['fn'] .= iconv($perspart->charset, 'UTF-8//IGNORE', $perspart->text);
 | 
						|
										else
 | 
						|
											$vcard['fn'] .= $perspart->text;
 | 
						|
 | 
						|
									$vcard['fn'] = notags($vcard['fn']);
 | 
						|
								}
 | 
						|
							}
 | 
						|
						}
 | 
						|
					}
 | 
						|
					imap_close($mbox);
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	if($mode == PROBE_NORMAL) {
 | 
						|
 | 
						|
		if(strlen($zot)) {
 | 
						|
			$s = fetch_url($zot);
 | 
						|
			if($s) {
 | 
						|
				$j = json_decode($s);
 | 
						|
				if($j) {
 | 
						|
					$network = NETWORK_ZOT;
 | 
						|
					$vcard   = array(
 | 
						|
						'fn'    => $j->fullname,
 | 
						|
						'nick'  => $j->nickname,
 | 
						|
						'photo' => $j->photo
 | 
						|
					);
 | 
						|
					$profile  = $j->url;
 | 
						|
					$notify   = $j->post;
 | 
						|
					$pubkey   = $j->pubkey;
 | 
						|
					$poll     = 'N/A';
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
 | 
						|
		if(strlen($dfrn)) {
 | 
						|
			$ret = scrape_dfrn(($hcard) ? $hcard : $dfrn, true);
 | 
						|
			if(is_array($ret) && x($ret,'dfrn-request')) {
 | 
						|
				$network = NETWORK_DFRN;
 | 
						|
				$request = $ret['dfrn-request'];
 | 
						|
				$confirm = $ret['dfrn-confirm'];
 | 
						|
				$notify  = $ret['dfrn-notify'];
 | 
						|
				$poll    = $ret['dfrn-poll'];
 | 
						|
 | 
						|
				$vcard = array();
 | 
						|
				$vcard['fn'] = $ret['fn'];
 | 
						|
				$vcard['nick'] = $ret['nick'];
 | 
						|
				$vcard['photo'] = $ret['photo'];
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	// Scrape the public key from the hcard.
 | 
						|
	// Diaspora will remove it from the webfinger somewhere in the future.
 | 
						|
	if (($hcard != "") AND ($pubkey == "")) {
 | 
						|
		$ret = scrape_dfrn(($hcard) ? $hcard : $dfrn, true);
 | 
						|
		if (isset($ret["key"])) {
 | 
						|
			$hcard_key = $ret["key"];
 | 
						|
			if(strstr($hcard_key,'RSA '))
 | 
						|
				$pubkey = rsatopem($hcard_key);
 | 
						|
			else
 | 
						|
				$pubkey = $hcard_key;
 | 
						|
		}
 | 
						|
	}
 | 
						|
	if($diaspora && $diaspora_base && $diaspora_guid) {
 | 
						|
		$diaspora_notify = $diaspora_base.'receive/users/'.$diaspora_guid;
 | 
						|
 | 
						|
		if($mode == PROBE_DIASPORA || ! $notify || ($notify == $diaspora_notify)) {
 | 
						|
			$notify = $diaspora_notify;
 | 
						|
			$batch  = $diaspora_base . 'receive/public' ;
 | 
						|
		}
 | 
						|
		if(strpos($url,'@'))
 | 
						|
			$addr = str_replace('acct:', '', $url);
 | 
						|
	}
 | 
						|
 | 
						|
	if($network !== NETWORK_ZOT && $network !== NETWORK_DFRN && $network !== NETWORK_MAIL) {
 | 
						|
		if($diaspora)
 | 
						|
			$network = NETWORK_DIASPORA;
 | 
						|
		elseif($has_lrdd AND ($notify))
 | 
						|
			$network  = NETWORK_OSTATUS;
 | 
						|
 | 
						|
		if(strpos($url,'@'))
 | 
						|
			$addr = str_replace('acct:', '', $url);
 | 
						|
 | 
						|
		$priority = 0;
 | 
						|
 | 
						|
		if($hcard && ! $vcard) {
 | 
						|
			$vcard = scrape_vcard($hcard);
 | 
						|
 | 
						|
			// Google doesn't use absolute url in profile photos
 | 
						|
 | 
						|
			if((x($vcard,'photo')) && substr($vcard['photo'],0,1) == '/') {
 | 
						|
				$h = @parse_url($hcard);
 | 
						|
				if($h)
 | 
						|
					$vcard['photo'] = $h['scheme'] . '://' . $h['host'] . $vcard['photo'];
 | 
						|
			}
 | 
						|
 | 
						|
			logger('probe_url: scrape_vcard: ' . print_r($vcard,true), LOGGER_DATA);
 | 
						|
		}
 | 
						|
 | 
						|
		if($diaspora && $addr) {
 | 
						|
			// Diaspora returns the name as the nick. As the nick will never be updated,
 | 
						|
			// let's use the Diaspora nickname (the first part of the handle) as the nick instead
 | 
						|
			$addr_parts = explode('@', $addr);
 | 
						|
			$vcard['nick'] = $addr_parts[0];
 | 
						|
		}
 | 
						|
 | 
						|
		if($lastfm) {
 | 
						|
			$profile = $url;
 | 
						|
			$poll = str_replace(array('www.','last.fm/'),array('','ws.audioscrobbler.com/1.0/'),$url) . '/recenttracks.rss';
 | 
						|
			$vcard['nick'] = basename($url);
 | 
						|
			$vcard['fn'] = $vcard['nick'] . t(' on Last.fm');
 | 
						|
			$network = NETWORK_FEED;
 | 
						|
		}
 | 
						|
 | 
						|
		if(! x($vcard,'fn'))
 | 
						|
			if(x($vcard,'nick'))
 | 
						|
				$vcard['fn'] = $vcard['nick'];
 | 
						|
 | 
						|
		$check_feed = false;
 | 
						|
 | 
						|
		if(stristr($url,'tumblr.com') && (! stristr($url,'/rss'))) {
 | 
						|
			$poll = $url . '/rss';
 | 
						|
			$check_feed = true;
 | 
						|
			// Will leave it to others to figure out how to grab the avatar, which is on the $url page in the open graph meta links
 | 
						|
		}
 | 
						|
 | 
						|
		if($appnet || ! $poll)
 | 
						|
			$check_feed = true;
 | 
						|
		if((! isset($vcard)) || (! x($vcard,'fn')) || (! $profile))
 | 
						|
			$check_feed = true;
 | 
						|
		if(($at_addr) && (! count($links)))
 | 
						|
			$check_feed = false;
 | 
						|
 | 
						|
		if ($connectornetworks)
 | 
						|
			$check_feed = false;
 | 
						|
 | 
						|
		if($check_feed) {
 | 
						|
 | 
						|
			$feedret = scrape_feed(($poll) ? $poll : $url);
 | 
						|
 | 
						|
			logger('probe_url: scrape_feed ' . (($poll)? $poll : $url) . ' returns: ' . print_r($feedret,true), LOGGER_DATA);
 | 
						|
			if(count($feedret) && ($feedret['feed_atom'] || $feedret['feed_rss'])) {
 | 
						|
				$poll = ((x($feedret,'feed_atom')) ? unamp($feedret['feed_atom']) : unamp($feedret['feed_rss']));
 | 
						|
				if(! x($vcard))
 | 
						|
					$vcard = array();
 | 
						|
			}
 | 
						|
 | 
						|
			if(x($feedret,'photo') && (! x($vcard,'photo')))
 | 
						|
				$vcard['photo'] = $feedret['photo'];
 | 
						|
 | 
						|
			$cookiejar = tempnam(get_temppath(), 'cookiejar-scrape-feed-');
 | 
						|
			$xml = fetch_url($poll, false, $redirects, 0, Null, $cookiejar);
 | 
						|
			unlink($cookiejar);
 | 
						|
 | 
						|
			logger('probe_url: fetch feed: ' . $poll . ' returns: ' . $xml, LOGGER_DATA);
 | 
						|
 | 
						|
			if ($xml == "") {
 | 
						|
				logger("scrape_feed: XML is empty for feed ".$poll);
 | 
						|
				$network = NETWORK_PHANTOM;
 | 
						|
			} else {
 | 
						|
				$data = feed_import($xml,$dummy1,$dummy2, $dummy3, true);
 | 
						|
 | 
						|
				if (!is_array($data)) {
 | 
						|
					logger("scrape_feed: This doesn't seem to be a feed: ".$poll);
 | 
						|
					$network = NETWORK_PHANTOM;
 | 
						|
				} else {
 | 
						|
					if (($vcard["photo"] == "") AND ($data["header"]["author-avatar"] != ""))
 | 
						|
						$vcard["photo"] = $data["header"]["author-avatar"];
 | 
						|
 | 
						|
					if (($vcard["fn"] == "") AND ($data["header"]["author-name"] != ""))
 | 
						|
						$vcard["fn"] = $data["header"]["author-name"];
 | 
						|
 | 
						|
					if (($vcard["nick"] == "") AND ($data["header"]["author-nick"] != ""))
 | 
						|
						$vcard["nick"] = $data["header"]["author-nick"];
 | 
						|
 | 
						|
					if ($network == NETWORK_OSTATUS) {
 | 
						|
						if ($data["header"]["author-id"] != "")
 | 
						|
							$alias = $data["header"]["author-id"];
 | 
						|
 | 
						|
						if ($data["header"]["author-link"] != "")
 | 
						|
							$profile = $data["header"]["author-link"];
 | 
						|
 | 
						|
					} elseif(!$profile AND ($data["header"]["author-link"] != "") AND !in_array($network, array("", NETWORK_FEED)))
 | 
						|
						$profile = $data["header"]["author-link"];
 | 
						|
				}
 | 
						|
			}
 | 
						|
 | 
						|
			// Workaround for misconfigured Friendica servers
 | 
						|
			if (($network == "") AND (strstr($url, "/profile/"))) {
 | 
						|
				$noscrape = str_replace("/profile/", "/noscrape/", $url);
 | 
						|
				$noscrapejson = fetch_url($noscrape);
 | 
						|
				if ($noscrapejson) {
 | 
						|
 | 
						|
					$network = NETWORK_DFRN;
 | 
						|
 | 
						|
					$poco = str_replace("/profile/", "/poco/", $url);
 | 
						|
 | 
						|
					$noscrapedata = json_decode($noscrapejson, true);
 | 
						|
 | 
						|
					if (isset($noscrapedata["addr"]))
 | 
						|
						$addr = $noscrapedata["addr"];
 | 
						|
 | 
						|
					if (isset($noscrapedata["fn"]))
 | 
						|
						$vcard["fn"] = $noscrapedata["fn"];
 | 
						|
 | 
						|
					if (isset($noscrapedata["key"]))
 | 
						|
						$pubkey = $noscrapedata["key"];
 | 
						|
 | 
						|
					if (isset($noscrapedata["photo"]))
 | 
						|
						$vcard["photo"] = $noscrapedata["photo"];
 | 
						|
 | 
						|
					if (isset($noscrapedata["dfrn-request"]))
 | 
						|
						$request = $noscrapedata["dfrn-request"];
 | 
						|
 | 
						|
					if (isset($noscrapedata["dfrn-confirm"]))
 | 
						|
						$confirm = $noscrapedata["dfrn-confirm"];
 | 
						|
 | 
						|
					if (isset($noscrapedata["dfrn-notify"]))
 | 
						|
						$notify = $noscrapedata["dfrn-notify"];
 | 
						|
 | 
						|
					if (isset($noscrapedata["dfrn-poll"]))
 | 
						|
						$poll = $noscrapedata["dfrn-poll"];
 | 
						|
 | 
						|
				}
 | 
						|
			}
 | 
						|
 | 
						|
			if(! $network)
 | 
						|
				$network = NETWORK_FEED;
 | 
						|
 | 
						|
			if(! x($vcard,'nick')) {
 | 
						|
				$vcard['nick'] = strtolower(notags(unxmlify($vcard['fn'])));
 | 
						|
				if(strpos($vcard['nick'],' '))
 | 
						|
					$vcard['nick'] = trim(substr($vcard['nick'],0,strpos($vcard['nick'],' ')));
 | 
						|
			}
 | 
						|
			if(! $priority)
 | 
						|
				$priority = 2;
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	if(! x($vcard,'photo')) {
 | 
						|
		$a = get_app();
 | 
						|
		$vcard['photo'] = App::get_baseurl() . '/images/person-175.jpg' ;
 | 
						|
	}
 | 
						|
 | 
						|
	if(! $profile)
 | 
						|
		$profile = $url;
 | 
						|
 | 
						|
	// No human could be associated with this link, use the URL as the contact name
 | 
						|
 | 
						|
	if(($network === NETWORK_FEED) && ($poll) && (! x($vcard,'fn')))
 | 
						|
		$vcard['fn'] = $url;
 | 
						|
 | 
						|
	if (($notify != "") AND ($poll != "")) {
 | 
						|
		$baseurl = matching_url(normalise_link($notify), normalise_link($poll));
 | 
						|
 | 
						|
		$baseurl2 = matching_url($baseurl, normalise_link($profile));
 | 
						|
		if ($baseurl2 != "")
 | 
						|
			$baseurl = $baseurl2;
 | 
						|
	}
 | 
						|
 | 
						|
	if (($baseurl == "") AND ($notify != ""))
 | 
						|
		$baseurl = matching_url(normalise_link($profile), normalise_link($notify));
 | 
						|
 | 
						|
	if (($baseurl == "") AND ($poll != ""))
 | 
						|
		$baseurl = matching_url(normalise_link($profile), normalise_link($poll));
 | 
						|
 | 
						|
	if (substr($baseurl, -10) == "/index.php")
 | 
						|
		$baseurl = str_replace("/index.php", "", $baseurl);
 | 
						|
 | 
						|
	if ($network == "")
 | 
						|
		$network = NETWORK_PHANTOM;
 | 
						|
 | 
						|
	$baseurl = rtrim($baseurl, "/");
 | 
						|
 | 
						|
	if(strpos($url,'@') AND ($addr == "") AND ($network == NETWORK_DFRN))
 | 
						|
		$addr = str_replace('acct:', '', $url);
 | 
						|
 | 
						|
	$vcard['fn'] = notags($vcard['fn']);
 | 
						|
	$vcard['nick'] = str_replace(' ','',notags($vcard['nick']));
 | 
						|
 | 
						|
	$result['name'] = $vcard['fn'];
 | 
						|
	$result['nick'] = $vcard['nick'];
 | 
						|
	$result['url'] = $profile;
 | 
						|
	$result['addr'] = $addr;
 | 
						|
	$result['batch'] = $batch;
 | 
						|
	$result['notify'] = $notify;
 | 
						|
	$result['poll'] = $poll;
 | 
						|
	$result['request'] = $request;
 | 
						|
	$result['confirm'] = $confirm;
 | 
						|
	$result['poco'] = $poco;
 | 
						|
	$result['photo'] = $vcard['photo'];
 | 
						|
	$result['priority'] = $priority;
 | 
						|
	$result['network'] = $network;
 | 
						|
	$result['alias'] = $alias;
 | 
						|
	$result['pubkey'] = $pubkey;
 | 
						|
	$result['baseurl'] = $baseurl;
 | 
						|
 | 
						|
	logger('probe_url: ' . print_r($result,true), LOGGER_DEBUG);
 | 
						|
 | 
						|
	if ($level == 1) {
 | 
						|
		// Trying if it maybe a diaspora account
 | 
						|
		if (($result['network'] == NETWORK_FEED) OR ($result['addr'] == "")) {
 | 
						|
			require_once('include/bbcode.php');
 | 
						|
			$address = GetProfileUsername($url, "", true);
 | 
						|
			$result2 = probe_url($address, $mode, ++$level);
 | 
						|
			if ($result2['network'] != "")
 | 
						|
				$result = $result2;
 | 
						|
		}
 | 
						|
 | 
						|
		// Maybe it's some non standard GNU Social installation (Single user, subfolder or no uri rewrite)
 | 
						|
		if (($result['network'] == NETWORK_FEED) AND ($result['baseurl'] != "") AND ($result['nick'] != "")) {
 | 
						|
			$addr = $result['nick'].'@'.str_replace("http://", "", $result['baseurl']);
 | 
						|
			$result2 = probe_url($addr, $mode, ++$level);
 | 
						|
			if (($result2['network'] != "") AND ($result2['network'] != NETWORK_FEED))
 | 
						|
				$result = $result2;
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	// Only store into the cache if the value seems to be valid
 | 
						|
	if ($result['network'] != NETWORK_PHANTOM) {
 | 
						|
		Cache::set("probe_url:".$mode.":".$original_url,serialize($result), CACHE_DAY);
 | 
						|
 | 
						|
		/// @todo temporary fix - we need a real contact update function that updates only changing fields
 | 
						|
		/// The biggest problem is the avatar picture that could have a reduced image size.
 | 
						|
		/// It should only be updated if the existing picture isn't existing anymore.
 | 
						|
		if (($result['network'] != NETWORK_FEED) AND ($mode == PROBE_NORMAL) AND
 | 
						|
			$result["name"] AND $result["nick"] AND $result["url"] AND $result["addr"] AND $result["poll"])
 | 
						|
			q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `url` = '%s', `addr` = '%s',
 | 
						|
					`notify` = '%s', `poll` = '%s', `alias` = '%s', `success_update` = '%s'
 | 
						|
				WHERE `nurl` = '%s' AND NOT `self` AND `uid` = 0",
 | 
						|
				dbesc($result["name"]),
 | 
						|
				dbesc($result["nick"]),
 | 
						|
				dbesc($result["url"]),
 | 
						|
				dbesc($result["addr"]),
 | 
						|
				dbesc($result["notify"]),
 | 
						|
				dbesc($result["poll"]),
 | 
						|
				dbesc($result["alias"]),
 | 
						|
				dbesc(datetime_convert()),
 | 
						|
				dbesc(normalise_link($result['url']))
 | 
						|
		);
 | 
						|
	}
 | 
						|
 | 
						|
	return $result;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * @brief Find the matching part between two url
 | 
						|
 *
 | 
						|
 * @param string $url1
 | 
						|
 * @param string $url2
 | 
						|
 * @return string The matching part
 | 
						|
 */
 | 
						|
function matching_url($url1, $url2) {
 | 
						|
 | 
						|
	if (($url1 == "") OR ($url2 == ""))
 | 
						|
		return "";
 | 
						|
 | 
						|
	$url1 = normalise_link($url1);
 | 
						|
	$url2 = normalise_link($url2);
 | 
						|
 | 
						|
	$parts1 = parse_url($url1);
 | 
						|
	$parts2 = parse_url($url2);
 | 
						|
 | 
						|
	if (!isset($parts1["host"]) OR !isset($parts2["host"]))
 | 
						|
		return "";
 | 
						|
 | 
						|
	if ($parts1["scheme"] != $parts2["scheme"])
 | 
						|
		return "";
 | 
						|
 | 
						|
	if ($parts1["host"] != $parts2["host"])
 | 
						|
		return "";
 | 
						|
 | 
						|
	if ($parts1["port"] != $parts2["port"])
 | 
						|
		return "";
 | 
						|
 | 
						|
	$match = $parts1["scheme"]."://".$parts1["host"];
 | 
						|
 | 
						|
	if ($parts1["port"])
 | 
						|
		$match .= ":".$parts1["port"];
 | 
						|
 | 
						|
	$pathparts1 = explode("/", $parts1["path"]);
 | 
						|
	$pathparts2 = explode("/", $parts2["path"]);
 | 
						|
 | 
						|
	$i = 0;
 | 
						|
	$path = "";
 | 
						|
	do {
 | 
						|
		$path1 = $pathparts1[$i];
 | 
						|
		$path2 = $pathparts2[$i];
 | 
						|
 | 
						|
		if ($path1 == $path2)
 | 
						|
			$path .= $path1."/";
 | 
						|
 | 
						|
	} while (($path1 == $path2) AND ($i++ <= count($pathparts1)));
 | 
						|
 | 
						|
	$match .= $path;
 | 
						|
 | 
						|
	return normalise_link($match);
 | 
						|
}
 |