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@ -1,144 +1,6 @@ |
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<?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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require_once('include/Probe.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'),'uid')) |
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$ret['guid'] = $x->textContent; |
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if(attribute_contains($x->getAttribute('class'),'nickname')) |
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$ret['nickname'] = $x->textContent; |
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if(attribute_contains($x->getAttribute('class'),'fn')) |
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$ret['fn'] = $x->textContent; |
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if(attribute_contains($x->getAttribute('class'),'searchable')) |
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$ret['searchable'] = $x->textContent; |
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if(attribute_contains($x->getAttribute('class'),'key')) |
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$ret['key'] = $x->textContent; |
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if(attribute_contains($x->getAttribute('class'),'url')) |
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$ret['url'] = $x->textContent; |
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if((attribute_contains($x->getAttribute('class'),'photo')) |
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|| (attribute_contains($x->getAttribute('class'),'avatar'))) { |
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$size = intval($x->getAttribute('width')); |
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// dfrn prefers 175, so if we find this, we set largest_size so it can't be topped.
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if(($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 : $size); |
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} |
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} |
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} |
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} |
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} |
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return array_merge($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 $errors; |
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}} |
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/** |
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* |
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* Probe a network address to discover what kind of protocols we need to communicate with it. |
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@ -157,7 +19,6 @@ function validate_dfrn($a) { |
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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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@ -172,57 +33,3 @@ function probe_url($url, $mode = PROBE_NORMAL, $level = 1) { |
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return $data; |
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} |
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/** |
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* @brief Find the matching part between two url |
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* |
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* @param string $url1 |
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* @param string $url2 |
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* @return string The matching part |
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*/ |
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function matching_url($url1, $url2) { |
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if (($url1 == "") OR ($url2 == "")) |
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return ""; |
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$url1 = normalise_link($url1); |
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$url2 = normalise_link($url2); |
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$parts1 = parse_url($url1); |
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$parts2 = parse_url($url2); |
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if (!isset($parts1["host"]) OR !isset($parts2["host"])) |
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return ""; |
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if ($parts1["scheme"] != $parts2["scheme"]) |
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return ""; |
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if ($parts1["host"] != $parts2["host"]) |
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return ""; |
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if ($parts1["port"] != $parts2["port"]) |
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return ""; |
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$match = $parts1["scheme"]."://".$parts1["host"]; |
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if ($parts1["port"]) |
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$match .= ":".$parts1["port"]; |
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$pathparts1 = explode("/", $parts1["path"]); |
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$pathparts2 = explode("/", $parts2["path"]); |
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$i = 0; |
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$path = ""; |
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do { |
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$path1 = $pathparts1[$i]; |
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$path2 = $pathparts2[$i]; |
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if ($path1 == $path2) |
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$path .= $path1."/"; |
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} while (($path1 == $path2) AND ($i++ <= count($pathparts1))); |
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$match .= $path; |
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return normalise_link($match); |
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} |
Michael Vogel
5 years ago