Example #1
0
function probe_url($url, $mode = PROBE_NORMAL)
{
    require_once 'include/email.php';
    $result = array();
    if (!$url) {
        return $result;
    }
    $network = null;
    $diaspora = false;
    $diaspora_base = '';
    $diaspora_guid = '';
    $diaspora_key = '';
    $has_lrdd = false;
    $email_conversant = false;
    $twitter = strpos($url, 'twitter.com') !== false ? true : false;
    $at_addr = strpos($url, '@') !== false ? true : false;
    if (!$twitter) {
        if (strpos($url, 'mailto:') !== false && $at_addr) {
            $url = str_replace('mailto:', '', $url);
            $links = array();
        } else {
            $links = lrdd($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']));
                    $pubkey = rsatopem($diaspora_key);
                    $diaspora = true;
                }
            }
            // Status.Net can have more than one profile URL. We need to match the profile URL
            // to a contact on incoming messages to prevent spam, and we won't know which one
            // to match. So in case of two, one of them is stored as an alias. Only store URL's
            // and not webfinger user@host aliases. If they've got more than two non-email style
            // aliases, let's hope we're lucky and get one that matches the feed author-uri because
            // otherwise we're screwed.
            foreach ($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']);
                        }
                    }
                }
            }
        } 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->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($adr)) {
                            foreach ($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 : $dfrn);
            if (is_array($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'] = $ret['photo'];
            }
        }
    }
    if ($diaspora && $diaspora_base && $diaspora_guid) {
        if ($mode == PROBE_DIASPORA || !$notify) {
            $notify = $diaspora_base . 'receive/users/' . $diaspora_guid;
            $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) {
            $network = NETWORK_OSTATUS;
        }
        $priority = 0;
        if ($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 ($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;
            $vcard['photo'] = 'https://api.twitter.com/1/users/profile_image/' . $tid;
            $vcard['nick'] = $tid;
            $vcard['fn'] = $tid . '@twitter';
        }
        if (!x($vcard, 'fn')) {
            if (x($vcard, 'nick')) {
                $vcard['fn'] = $vcard['nick'];
            }
        }
        $check_feed = false;
        if ($twitter || !$poll) {
            $check_feed = true;
        }
        if (!isset($vcard) || !x($vcard, 'fn') || !$profile) {
            $check_feed = true;
        }
        if ($at_addr && !count($links)) {
            $check_feed = false;
        }
        if ($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'];
            }
            require_once 'library/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());
                if (!$profile && $author->get_link()) {
                    $profile = trim(unxmlify($author->get_link()));
                }
                if (!$vcard['photo']) {
                    $rawtags = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
                    if ($rawtags) {
                        $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
                        if (x($elems, 'link') && $elems['link'][0]['attribs']['']['rel'] === 'photo') {
                            $vcard['photo'] = $elems['link'][0]['attribs']['']['href'];
                        }
                    }
                }
            } 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 (!$profile && $author->get_link()) {
                            $profile = trim(unxmlify($author->get_link()));
                        }
                    }
                    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']) {
                        $rawtags = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
                        if ($rawtags) {
                            $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
                            if (x($elems, 'link') && $elems['link'][0]['attribs']['']['rel'] === 'photo') {
                                $vcard['photo'] = $elems['link'][0]['attribs']['']['href'];
                            }
                        }
                    }
                }
            }
            if (!$vcard['photo'] && strlen($email)) {
                $vcard['photo'] = avatar_img($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($vcard['nick'], ' ')));
                }
            }
            if (!$network) {
                $network = NETWORK_FEED;
            }
            if (!$priority) {
                $priority = 2;
            }
        }
    }
    if (!x($vcard, 'photo')) {
        $a = get_app();
        $vcard['photo'] = $a->get_baseurl() . '/images/person-175.jpg';
    }
    if (!$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;
    }
    $vcard['fn'] = notags($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'] = $pubkey;
    logger('probe_url: ' . print_r($result, true), LOGGER_DEBUG);
    return $result;
}
Example #2
0
function discover_by_url($url, $arr = null)
{
    require_once 'library/HTML5/Parser.php';
    $x = scrape_feed($url);
    if (!$x) {
        if (!$arr) {
            return false;
        }
        $network = $arr['network'] ? $arr['network'] : 'unknown';
        $name = $arr['name'] ? $arr['name'] : 'unknown';
        $photo = $arr['photo'] ? $arr['photo'] : '';
        $addr = $arr['addr'] ? $arr['addr'] : '';
        $guid = $url;
    }
    $profile = $url;
    logger('scrape_feed results: ' . print_r($x, true));
    if ($x['feed_atom']) {
        $guid = $x['feed_atom'];
    }
    if ($x['feed_rss']) {
        $guid = $x['feed_rss'];
    }
    if (!$guid) {
        return false;
    }
    // try and discover stuff from the feeed
    require_once 'library/simplepie/simplepie.inc';
    $feed = new SimplePie();
    $level = 0;
    $x = z_fetch_url($guid, false, $level, array('novalidate' => true));
    if (!$x['success']) {
        logger('probe_url: feed fetch failed for ' . $poll);
        return false;
    }
    $xml = $x['body'];
    logger('probe_url: fetch feed: ' . $guid . ' returns: ' . $xml, LOGGER_DATA);
    logger('probe_url: scrape_feed: headers: ' . $x['header'], LOGGER_DATA);
    // Don't try and parse an empty string
    $feed->set_raw_data($xml ? $xml : '<?xml version="1.0" encoding="utf-8" ?><xml></xml>');
    $feed->init();
    if ($feed->error()) {
        logger('probe_url: scrape_feed: Error parsing XML: ' . $feed->error());
    }
    $name = unxmlify(trim($feed->get_title()));
    $photo = $feed->get_image_url();
    $author = $feed->get_author();
    if ($author) {
        if (!$name) {
            $name = unxmlify(trim($author->get_name()));
        }
        if (!$name) {
            $name = trim(unxmlify($author->get_email()));
            if (strpos($name, '@') !== false) {
                $name = substr($name, 0, strpos($name, '@'));
            }
        }
        if (!$profile && $author->get_link()) {
            $profile = trim(unxmlify($author->get_link()));
        }
        if (!$photo) {
            $rawtags = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
            if ($rawtags) {
                $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
                if (x($elems, 'link') && $elems['link'][0]['attribs']['']['rel'] === 'photo') {
                    $photo = $elems['link'][0]['attribs']['']['href'];
                }
            }
        }
    } else {
        $item = $feed->get_item(0);
        if ($item) {
            $author = $item->get_author();
            if ($author) {
                if (!$name) {
                    $name = trim(unxmlify($author->get_name()));
                    if (!$name) {
                        $name = trim(unxmlify($author->get_email()));
                    }
                    if (strpos($name, '@') !== false) {
                        $name = substr($name, 0, strpos($name, '@'));
                    }
                }
                if (!$profile && $author->get_link()) {
                    $profile = trim(unxmlify($author->get_link()));
                }
            }
            if (!$photo) {
                $rawmedia = $item->get_item_tags('http://search.yahoo.com/mrss/', 'thumbnail');
                if ($rawmedia && $rawmedia[0]['attribs']['']['url']) {
                    $photo = unxmlify($rawmedia[0]['attribs']['']['url']);
                }
            }
            if (!$photo) {
                $rawtags = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
                if ($rawtags) {
                    $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
                    if (x($elems, 'link') && $elems['link'][0]['attribs']['']['rel'] === 'photo') {
                        $photo = $elems['link'][0]['attribs']['']['href'];
                    }
                }
            }
        }
    }
    if ($poll === $profile) {
        $lnk = $feed->get_permalink();
    }
    if (isset($lnk) && strlen($lnk)) {
        $profile = $lnk;
    }
    if (!$network) {
        $network = 'rss';
    }
    if (!$name) {
        $name = notags($feed->get_description());
    }
    if (!$guid) {
        return false;
    }
    $r = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($guid));
    if ($r) {
        return true;
    }
    if (!$photo) {
        $photo = z_root() . '/images/rss_icon.png';
    }
    $r = q("insert into xchan ( xchan_hash, xchan_guid, xchan_pubkey, xchan_addr, xchan_url, xchan_name, xchan_network, xchan_instance_url, xchan_name_date ) values ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s') ", dbesc($guid), dbesc($guid), dbesc($pubkey), dbesc($addr), dbesc($profile), dbesc($name), dbesc($network), dbesc(z_root()), dbesc(datetime_convert()));
    $photos = import_xchan_photo($photo, $guid);
    $r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_hash = '%s'", dbesc(datetime_convert()), dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]), dbesc($photos[3]), dbesc($guid));
    return true;
}
Example #3
0
function probe_url($url, $mode = PROBE_NORMAL, $level = 1)
{
    require_once 'include/email.php';
    $result = array();
    if (!$url) {
        return $result;
    }
    $result = Cache::get("probe_url:" . $mode . ":" . $url);
    if (!is_null($result)) {
        $result = unserialize($result);
        return $result;
    }
    $network = null;
    $diaspora = false;
    $diaspora_base = '';
    $diaspora_guid = '';
    $diaspora_key = '';
    $has_lrdd = false;
    $email_conversant = false;
    $connectornetworks = false;
    $appnet = false;
    if (strpos($url, 'twitter.com')) {
        $connectornetworks = true;
        $network = NETWORK_TWITTER;
    }
    // Twitter is deactivated since twitter closed its old API
    //$twitter = ((strpos($url,'twitter.com') !== false) ? true : false);
    $lastfm = strpos($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)) {
            $has_lrdd = true;
            logger('probe_url: found lrdd links: ' . print_r($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) {
                    $diaspora = false;
                }
            }
            // Status.Net can have more than one profile URL. We need to match the profile URL
            // to a contact on incoming messages to prevent spam, and we won't know which one
            // to match. So in case of two, one of them is stored as an alias. Only store URL's
            // and not webfinger user@host aliases. If they've got more than two non-email style
            // aliases, let's hope we're lucky and get one that matches the feed author-uri because
            // otherwise we're screwed.
            foreach ($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']);
                        }
                    }
                }
            }
            // 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'] = $ret['photo'];
            }
        }
    }
    if ($diaspora && $diaspora_base && $diaspora_guid) {
        if ($mode == PROBE_DIASPORA || !$notify) {
            $notify = $diaspora_base . 'receive/users/' . $diaspora_guid;
            $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'] = $addr_parts[0];
        }
        /* if($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/#!/' . $tid;
        			//$vcard['photo'] = 'https://api.twitter.com/1/users/profile_image/' . $tid;
        			$vcard['photo'] = 'https://api.twitter.com/1/users/profile_image?screen_name=' . $tid . '&size=bigger';
        			$vcard['nick'] = $tid;
        			$vcard['fn'] = $tid;
        		} */
        if ($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'];
            }
            require_once 'library/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);
            // Don't try and parse an empty string
            $feed->set_raw_data($xml ? $xml : '<?xml version="1.0" encoding="utf-8" ?><xml></xml>');
            $feed->init();
            if ($feed->error()) {
                logger('probe_url: scrape_feed: Error parsing XML: ' . $feed->error());
                $network = NETWORK_PHANTOM;
            }
            if (!x($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());
                if (!$profile && $author->get_link()) {
                    $profile = trim(unxmlify($author->get_link()));
                }
                if (!$vcard['photo']) {
                    $rawtags = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
                    if ($rawtags) {
                        $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
                        if (x($elems, 'link') && $elems['link'][0]['attribs']['']['rel'] === 'photo') {
                            $vcard['photo'] = $elems['link'][0]['attribs']['']['href'];
                        }
                    }
                }
                // Fetch fullname via poco:displayName
                $pocotags = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
                if ($pocotags) {
                    $elems = $pocotags[0]['child']['http://portablecontacts.net/spec/1.0'];
                    if (isset($elems["displayName"])) {
                        $vcard['fn'] = $elems["displayName"][0]["data"];
                    }
                    if (isset($elems["preferredUsername"])) {
                        $vcard['nick'] = $elems["preferredUsername"][0]["data"];
                    }
                }
            } 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 (!$profile && $author->get_link()) {
                            $profile = trim(unxmlify($author->get_link()));
                        }
                    }
                    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']) {
                        $rawtags = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
                        if ($rawtags) {
                            $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
                            if (x($elems, 'link') && $elems['link'][0]['attribs']['']['rel'] === 'photo') {
                                $vcard['photo'] = $elems['link'][0]['attribs']['']['href'];
                            }
                        }
                    }
                }
            }
            // Workaround for misconfigured Friendica servers
            if ($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 = $noscrapedata["dfrn-poll"];
                    }
                }
            }
            if (!$vcard['photo'] && strlen($email)) {
                $vcard['photo'] = avatar_img($email);
            }
            if ($poll === $profile) {
                $lnk = $feed->get_permalink();
            }
            if (isset($lnk) && strlen($lnk)) {
                $profile = $lnk;
            }
            if (!$network) {
                $network = NETWORK_FEED;
                // If it is a feed, don't take the author name as feed name
                unset($vcard['fn']);
            }
            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($vcard['nick'], ' ')));
                }
            }
            if (!$priority) {
                $priority = 2;
            }
        }
    }
    if (!x($vcard, 'photo')) {
        $a = get_app();
        $vcard['photo'] = $a->get_baseurl() . '/images/person-175.jpg';
    }
    if (!$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 != "") {
        $baseurl = matching(normalise_link($notify), normalise_link($poll));
        $baseurl2 = matching($baseurl, normalise_link($profile));
        if ($baseurl2 != "") {
            $baseurl = $baseurl2;
        }
    }
    if ($baseurl == "" and $notify != "") {
        $baseurl = matching(normalise_link($profile), normalise_link($notify));
    }
    if ($baseurl == "" and $poll != "") {
        $baseurl = matching(normalise_link($profile), normalise_link($poll));
    }
    $baseurl = rtrim($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 . ":" . $url, serialize($result), CACHE_DAY);
    }
    return $result;
}