]> git.mxchange.org Git - friendica.git/blobdiff - include/Scrape.php
Merge https://github.com/friendika/friendika into pull
[friendica.git] / include / Scrape.php
index e4f7a0878c71016332f7f28bee75b1f97bef8bf1..a6bb5f728c6d659be732ca65b7ab66439b552671 100644 (file)
@@ -5,12 +5,31 @@ require_once('library/HTML5/Parser.php');
 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(! $dom)
@@ -77,12 +96,31 @@ function validate_dfrn($a) {
 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(! $dom)
@@ -105,12 +143,27 @@ function scrape_meta($url) {
 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(! $dom)
@@ -142,28 +195,297 @@ function scrape_vcard($url) {
 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');
+                       }
+               }
+       }
+
        $items = $dom->getElementsByTagName('link');
 
-       // get Atom link elements
+       // get Atom/RSS link elements, take the first one of either.
 
-       foreach($items as $item) {
-               $x = $item->getAttribute('rel');
-               if(($x === 'alternate') && ($item->getAttribute('type') === 'application/atom+xml'))
-                       $ret['feed_atom'] = $item->getAttribute('href');
-               if(($x === 'alternate') && ($item->getAttribute('type') === 'application/rss+xml'))
-                       $ret['feed_rss'] = $item->getAttribute('href');
+       if($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');
+                       }
+               }       
        }
 
        return $ret;
-}}
\ No newline at end of file
+}}
+
+
+function probe_url($url) {
+       require_once('include/email.php');
+
+       $result = array();
+
+       if(! $url)
+               return $result;
+
+       $diaspora = false;      
+       $email_conversant = false;
+
+       if($url) {
+               $links = lrdd($url);
+
+               if(count($links)) {
+                       foreach($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]);
+                                               $adr = imap_rfc822_parse_adrlist($x->from,'');
+                                               if(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 = $url;
+               }
+
+               if(! x($vcard,'fn'))
+                       if(x($vcard,'nick'))
+                               $vcard['fn'] = $vcard['nick'];
+
+               if((! isset($vcard)) && (! $poll)) {
+
+                       $ret = scrape_feed($url);
+                       logger('probe_url: scrape_feed returns: ' . print_r($ret,true), LOGGER_DATA);
+                       if(count($ret) && ($ret['feed_atom'] || $ret['feed_rss'])) {
+                               $poll = ((x($ret,'feed_atom')) ? unamp($ret['feed_atom']) : unamp($ret['feed_rss']));
+                               $vcard = array();
+                                       if(x($ret,'photo'))
+                                               $vcard['photo'] = $ret['photo'];
+                               require_once('simplepie/simplepie.inc');
+                           $feed = new SimplePie();
+                               $xml = fetch_url($poll);
+
+                       $feed->set_raw_data($xml);
+
+                           $feed->init();
+
+                               if(! x($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'],'@'));
+                                       $vcard['nick'] = strtolower(notags(unxmlify($vcard['fn'])));
+                                       if(strpos($vcard['nick'],' '))
+                                               $vcard['nick'] = trim(substr($vcard['nick'],0,strpos($vcard['nick'],' ')));
+                                       $email = unxmlify($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'],'@'));
+                                                       $vcard['nick'] = strtolower(unxmlify($vcard['fn']));
+                                                       if(strpos($vcard['nick'],' '))
+                                                               $vcard['nick'] = trim(substr($vcard['nick'],0,strpos($vcard['nick'],' ')));
+                                                       $email = unxmlify($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());
+                               $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;
+}