X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2FScrape.php;h=505d2bf99e6dc6c866eafa0ccaade92a2543df14;hb=494288ab9f9370bdf4f7b4ab9990b64f05adbd9d;hp=cc50151657b763e505a03acb5b240bad45f77830;hpb=6348e70daa113e8b3203de8fbc919d08c90d972e;p=friendica.git

diff --git a/include/Scrape.php b/include/Scrape.php
index cc50151657..505d2bf99e 100644
--- a/include/Scrape.php
+++ b/include/Scrape.php
@@ -2,24 +2,34 @@
 
 require_once('library/HTML5/Parser.php');
 
-if(! function_exists('attribute_contains')) {
-function attribute_contains($attr,$s) {
-	$a = explode(' ', $attr);
-	if(count($a) && in_array($s,$a))
-		return true;
-	return false;
-}}
-
-
 if(! function_exists('scrape_dfrn')) {
 function scrape_dfrn($url) {
 
+	$a = get_app();
+
 	$ret = array();
+
+	logger('scrape_dfrn: url=' . $url);
+
 	$s = fetch_url($url);
 
 	if(! $s) 
 		return $ret;
 
+	$headers = $a->get_curl_headers();
+	logger('scrape_dfrn: headers=' . $headers, LOGGER_DEBUG);
+
+
+	$lines = explode("\n",$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;
+		}
+	}
+
+
 	$dom = HTML5_Parser::parse($s);
 
 	if(! $dom)
@@ -31,8 +41,15 @@ function scrape_dfrn($url) {
 
 	foreach($items as $item) {
 		$x = $item->getAttribute('rel');
+		if(($x === 'alternate') && ($item->getAttribute('type') === 'application/atom+xml'))
+			$ret['feed_atom'] = $item->getAttribute('href');
 		if(substr($x,0,5) == "dfrn-")
 			$ret[$x] = $item->getAttribute('href');
+		if($x === 'lrdd') {
+			$decoded = urldecode($item->getAttribute('href'));
+			if(preg_match('/acct:([^@]*)@/',$decoded,$matches))
+				$ret['nick'] = $matches[1];
+		}
 	}
 
 	// Pull out hCard profile elements
@@ -48,7 +65,7 @@ function scrape_dfrn($url) {
 					$ret['photo'] = $x->getAttribute('src');
 				if(attribute_contains($x->getAttribute('class'),'key'))
 					$ret['key'] = $x->textContent;
-        		}
+			}
 		}
 	}
 
@@ -76,5 +93,448 @@ function validate_dfrn($a) {
 	return $errors;
 }}
 
+if(! function_exists('scrape_meta')) {
+function scrape_meta($url) {
+
+	$a = get_app();
+
+	$ret = array();
+
+	logger('scrape_meta: url=' . $url);
+
+	$s = fetch_url($url);
+
+	if(! $s) 
+		return $ret;
+
+	$headers = $a->get_curl_headers();
+	logger('scrape_meta: headers=' . $headers, LOGGER_DEBUG);
+
+	$lines = explode("\n",$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;
+		}
+	}
+
+
+
+	$dom = HTML5_Parser::parse($s);
+
+	if(! $dom)
+		return $ret;
+
+	$items = $dom->getElementsByTagName('meta');
+
+	// get DFRN link elements
+
+	foreach($items as $item) {
+		$x = $item->getAttribute('name');
+		if(substr($x,0,5) == "dfrn-")
+			$ret[$x] = $item->getAttribute('content');
+	}
+
+	return $ret;
+}}
+
+
+if(! function_exists('scrape_vcard')) {
+function scrape_vcard($url) {
+
+	$a = get_app();
+
+	$ret = array();
+
+	logger('scrape_vcard: url=' . $url);
+
+	$s = fetch_url($url);
+
+	if(! $s) 
+		return $ret;
+
+	$headers = $a->get_curl_headers();
+	$lines = explode("\n",$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;
+		}
+	}
+
+	$dom = HTML5_Parser::parse($s);
+
+	if(! $dom)
+		return $ret;
+
+	// Pull out hCard profile elements
+
+	$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')))
+					$ret['photo'] = $x->getAttribute('src');
+				if((attribute_contains($x->getAttribute('class'),'nickname'))
+					|| (attribute_contains($x->getAttribute('class'),'uid')))
+					$ret['nick'] = $x->textContent;
+			}
+		}
+	}
+
+	return $ret;
+}}
+
+
+if(! function_exists('scrape_feed')) {
+function scrape_feed($url) {
+
+	$a = get_app();
+
+	$ret = array();
+	$s = fetch_url($url);
+
+	if(! $s) 
+		return $ret;
+
+	$headers = $a->get_curl_headers();
+	logger('scrape_feed: headers=' . $headers, LOGGER_DEBUG);
+
+	$lines = explode("\n",$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;
+				}
+			}
+		}
+	}
+
+	$dom = HTML5_Parser::parse($s);
+
+	if(! $dom)
+		return $ret;
+
+
+	$items = $dom->getElementsByTagName('img');
+
+	// get img elements (twitter)
+
+	if($items) {
+		foreach($items as $item) {
+			$x = $item->getAttribute('id');
+			if($x === 'profile-image') {
+				$ret['photo'] = $item->getAttribute('src');
+			}
+		}
+	}
+
+
+	$head = $dom->getElementsByTagName('base');
+	if($head) {
+		foreach($head as $head0) {
+			$basename = $head0->getAttribute('href');
+			break;
+		}
+	}
+	if(! $basename)
+		$basename = substr($url,0,strrpos($url,'/')) . '/';
+
+	$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 $ret;
+}}
+
+
+function probe_url($url) {
+	require_once('include/email.php');
+
+	$result = array();
+
+	if(! $url)
+		return $result;
+
+	$diaspora = false;	
+	$email_conversant = false;
+
+	$twitter = ((strpos($url,'twitter.com') !== false) ? true : false);
+
+	if(! $twitter) {
+		$links = lrdd($url);
+
+		if(count($links)) {
+			logger('probe_url: found lrdd links: ' . print_r($links,true), LOGGER_DATA);
+			foreach($links as $link) {
+				if($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://joindiaspora.com/seed_location')
+					$diaspora = true;
+			}
+
+			// Status.Net can have more than one profile URL. We need to match the profile URL
+			// to a contact on incoming messages to prevent spam, and we won't know which one
+			// to match. So in case of two, one of them is stored as an alias. Only store URL's
+			// and not webfinger user@host aliases. If they've got more than two non-email style
+			// aliases, let's hope we're lucky and get one that matches the feed author-uri because 
+			// otherwise we're screwed.
+
+			foreach($links as $link) {
+				if($link['@attributes']['rel'] === 'alias') {
+					if(strpos($link['@attributes']['href'],'@') === false) {
+						if(isset($profile)) {
+							if($link['@attributes']['href'] !== $profile)
+								$alias = unamp($link['@attributes']['href']);
+						}
+						else
+							$profile = unamp($link['@attributes']['href']);
+					}
+				}
+			}
+		}
+		else {
+
+			// 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);
+					unset($password);
+				}
+				if($mbox) {
+					$msgs = email_poll($mbox,$orig_url);
+					if(count($msgs)) {
+						$addr = $orig_url;
+						$network = NETWORK_MAIL;
+						$name = substr($url,0,strpos($url,'@'));
+						$profile = 'http://' . substr($url,strpos($url,'@')+1);
+						// fix nick character range
+						$vcard = array('fn' => $name, 'nick' => $name, 'photo' => gravatar_img($url));
+						$notify = 'smtp ' . random_string();
+						$poll = 'email ' . random_string();
+						$priority = 0;
+						$x = email_msg_meta($mbox,$msgs[0]);
+						if(stristr($x->from,$orig_url))
+							$adr = imap_rfc822_parse_adrlist($x->from,'');
+						elseif(stristr($x->to,$orig_url))
+							$adr = imap_rfc822_parse_adrlist($x->to,'');
+						if(isset($adr) && strlen($adr[0]->personal))
+							$vcard['fn'] = notags($adr[0]->personal);
+					}
+					imap_close($mbox);
+				}
+			}
+		}
+	}	
+
+	if(strlen($dfrn)) {
+		$ret = scrape_dfrn($dfrn);
+		if(is_array($ret) && x($ret,'dfrn-request')) {
+			$network = NETWORK_DFRN;
+			$request = $ret['dfrn-request'];
+			$confirm = $ret['dfrn-confirm'];
+			$notify  = $ret['dfrn-notify'];
+			$poll    = $ret['dfrn-poll'];
+		}
+	}
+
+	if($network !== NETWORK_DFRN && $network !== NETWORK_MAIL) {
+		$network  = NETWORK_OSTATUS;
+		$priority = 0;
+
+		if($hcard) {
+			$vcard = scrape_vcard($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(! $profile) {
+			if($diaspora)
+				$profile = $hcard;
+			else
+				$profile = $url;
+		}
+
+		if($twitter) {		
+			logger('twitter: setup');
+			$tid = basename($url);
+			$tapi = 'https://api.twitter.com/1/statuses/user_timeline.rss';
+			if(intval($tid))
+				$poll = $tapi . '?user_id=' . $tid;
+			else
+				$poll = $tapi . '?screen_name=' . $tid;
+			$profile = 'http://twitter.com/!#/' . $tid;
+		}
+
+		if(! x($vcard,'fn'))
+			if(x($vcard,'nick'))
+				$vcard['fn'] = $vcard['nick'];
+
+	
+		if(((! isset($vcard)) && (! $poll)) || ($twitter)) {
+
+			$feedret = scrape_feed($url);
+			logger('probe_url: scrape_feed 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']));
+				$vcard = array();
+			}
+
+			if(x($feedret,'photo'))
+				$vcard['photo'] = $feedret['photo'];
+			require_once('simplepie/simplepie.inc');
+		    $feed = new SimplePie();
+			$xml = fetch_url($poll);
+
+			logger('probe_url: fetch feed: ' . $poll . ' returns: ' . $xml, LOGGER_DATA);
+			$a = get_app();
+
+			logger('probe_url: scrape_feed: headers: ' . $a->get_curl_headers(), $LOGGER_DATA);
+
+   			$feed->set_raw_data($xml);
+
+		    $feed->init();
+			if($feed->error())
+				logger('probe_url: scrape_feed: Error parsing XML: ' . $feed->error());
+
+			if(! x($vcard,'photo'))
+				$vcard['photo'] = $feed->get_image_url();
+			$author = $feed->get_author();
+			if($author) {			
+				$vcard['fn'] = unxmlify(trim($author->get_name()));
+				if(! $vcard['fn'])
+					$vcard['fn'] = trim(unxmlify($author->get_email()));
+				if(strpos($vcard['fn'],'@') !== false)
+					$vcard['fn'] = substr($vcard['fn'],0,strpos($vcard['fn'],'@'));
+				$email = unxmlify($author->get_email());
+			}
+			else {
+				$item = $feed->get_item(0);
+				if($item) {
+					$author = $item->get_author();
+					if($author) {			
+						$vcard['fn'] = trim(unxmlify($author->get_name()));
+						if(! $vcard['fn'])
+							$vcard['fn'] = trim(unxmlify($author->get_email()));
+						if(strpos($vcard['fn'],'@') !== false)
+							$vcard['fn'] = substr($vcard['fn'],0,strpos($vcard['fn'],'@'));
+						$email = unxmlify($author->get_email());
+					}
+					if(! $vcard['photo']) {
+						$rawmedia = $item->get_item_tags('http://search.yahoo.com/mrss/','thumbnail');
+						if($rawmedia && $rawmedia[0]['attribs']['']['url'])
+							$vcard['photo'] = unxmlify($rawmedia[0]['attribs']['']['url']);
+					}
+				}
+			}
+			if((! $vcard['photo']) && strlen($email))
+				$vcard['photo'] = gravatar_img($email);
+			if($poll === $profile)
+				$lnk = $feed->get_permalink();
+			if(isset($lnk) && strlen($lnk))
+				$profile = $lnk;	
+
+			if(! (x($vcard,'fn')))
+				$vcard['fn'] = notags($feed->get_title());
+			if(! (x($vcard,'fn')))
+				$vcard['fn'] = notags($feed->get_description());
+
+			if(strpos($vcard['fn'],'Twitter / ') !== false) {
+				$vcard['fn'] = substr($vcard['fn'],strpos($vcard['fn'],'/')+1);
+				$vcard['fn'] = trim($vcard['fn']);
+			}
+			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'],' ')));
+			}
+			$network = 'feed';
+			$priority = 2;
+		}
+	}
+
+	if(! x($vcard,'photo')) {
+		$a = get_app();
+		$vcard['photo'] = $a->get_baseurl() . '/images/default-profile.jpg' ; 
+	}
+	$vcard['fn'] = notags($vcard['fn']);
+	$vcard['nick'] = notags($vcard['nick']);
+
+
+	$result['name'] = $vcard['fn'];
+	$result['nick'] = $vcard['nick'];
+	$result['url'] = $profile;
+	$result['addr'] = $addr;
+	$result['notify'] = $notify;
+	$result['poll'] = $poll;
+	$result['request'] = $request;
+	$result['confirm'] = $confirm;
+	$result['photo'] = $vcard['photo'];
+	$result['priority'] = $priority;
+	$result['network'] = $network;
+	$result['alias'] = $alias;
 
+	logger('probe_url: ' . print_r($result,true), LOGGER_DEBUG);
 
+	return $result;
+}