295 lines
8.5 KiB
PHP
295 lines
8.5 KiB
PHP
<?php
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require_once('Scrape.php');
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function follow_post(&$a) {
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if(! local_user()) {
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notice( t('Permission denied.') . EOL);
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goaway($_SESSION['return_url']);
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// NOTREACHED
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}
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$url = $orig_url = notags(trim($_POST['url']));
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$diaspora = false;
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$email_conversant = false;
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if($url) {
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$links = @lrdd($url);
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if(count($links)) {
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foreach($links as $link) {
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if($link['@attributes']['rel'] === NAMESPACE_DFRN)
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$dfrn = unamp($link['@attributes']['href']);
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if($link['@attributes']['rel'] === 'salmon')
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$notify = unamp($link['@attributes']['href']);
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if($link['@attributes']['rel'] === NAMESPACE_FEED)
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$poll = unamp($link['@attributes']['href']);
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if($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
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$hcard = unamp($link['@attributes']['href']);
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if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
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$profile = unamp($link['@attributes']['href']);
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if($link['@attributes']['rel'] === 'http://joindiaspora.com/seed_location')
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$diaspora = true;
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}
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// Status.Net can have more than one profile URL. We need to match the profile URL
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// to a contact on incoming messages to prevent spam, and we won't know which one
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// to match. So in case of two, one of them is stored as an alias. Only store URL's
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// and not webfinger user@host aliases. If they've got more than two non-email style
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// aliases, let's hope we're lucky and get one that matches the feed author-uri because
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// otherwise we're screwed.
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foreach($links as $link) {
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if($link['@attributes']['rel'] === 'alias') {
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if(strpos($link['@attributes']['href'],'@') === false) {
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if(isset($profile)) {
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if($link['@attributes']['href'] !== $profile)
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$alias = unamp($link['@attributes']['href']);
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}
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else
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$profile = unamp($link['@attributes']['href']);
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}
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}
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}
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}
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else {
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if((strpos($orig_url,'@')) && validate_email($orig_url)) {
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$email_conversant = true;
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}
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}
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}
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// If we find a DFRN site, send our subscriber to the other person's
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// dfrn_request page and all the other details will get sorted.
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if(strlen($dfrn)) {
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$ret = scrape_dfrn($dfrn);
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if(is_array($ret) && x($ret,'dfrn-request')) {
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if(strlen($a->path))
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$myaddr = bin2hex($a->get_baseurl() . '/profile/' . $a->user['nickname']);
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else
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$myaddr = bin2hex($a->user['nickname'] . '@' . $a->get_hostname());
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goaway($ret['dfrn-request'] . "&addr=$myaddr");
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// NOTREACHED
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}
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}
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$network = 'stat';
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$priority = 0;
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if($hcard) {
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$vcard = scrape_vcard($hcard);
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// Google doesn't use absolute url in profile photos
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if((x($vcard,'photo')) && substr($vcard['photo'],0,1) == '/') {
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$h = @parse_url($hcard);
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if($h)
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$vcard['photo'] = $h['scheme'] . '://' . $h['host'] . $vcard['photo'];
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}
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}
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if(! $profile) {
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if($diaspora)
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$profile = $hcard;
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else
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$profile = $url;
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}
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if(! x($vcard,'fn'))
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if(x($vcard,'nick'))
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$vcard['fn'] = $vcard['nick'];
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if((! isset($vcard)) && (! $poll)) {
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$ret = scrape_feed($url);
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if(count($ret) && ($ret['feed_atom'] || $ret['feed_rss'])) {
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$poll = ((x($ret,'feed_atom')) ? unamp($ret['feed_atom']) : unamp($ret['feed_rss']));
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$vcard = array();
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require_once('simplepie/simplepie.inc');
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$feed = new SimplePie();
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$xml = fetch_url($poll);
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$feed->set_raw_data($xml);
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$feed->init();
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$vcard['photo'] = $feed->get_image_url();
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$author = $feed->get_author();
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if($author) {
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$vcard['fn'] = unxmlify(trim($author->get_name()));
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if(! $vcard['fn'])
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$vcard['fn'] = trim(unxmlify($author->get_email()));
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if(strpos($vcard['fn'],'@') !== false)
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$vcard['fn'] = substr($vcard['fn'],0,strpos($vcard['fn'],'@'));
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$vcard['nick'] = strtolower(notags(unxmlify($vcard['fn'])));
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if(strpos($vcard['nick'],' '))
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$vcard['nick'] = trim(substr($vcard['nick'],0,strpos($vcard['nick'],' ')));
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$email = unxmlify($author->get_email());
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}
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else {
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$item = $feed->get_item(0);
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if($item) {
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$author = $item->get_author();
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if($author) {
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$vcard['fn'] = trim(unxmlify($author->get_name()));
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if(! $vcard['fn'])
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$vcard['fn'] = trim(unxmlify($author->get_email()));
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if(strpos($vcard['fn'],'@') !== false)
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$vcard['fn'] = substr($vcard['fn'],0,strpos($vcard['fn'],'@'));
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$vcard['nick'] = strtolower(unxmlify($vcard['fn']));
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if(strpos($vcard['nick'],' '))
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$vcard['nick'] = trim(substr($vcard['nick'],0,strpos($vcard['nick'],' ')));
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$email = unxmlify($author->get_email());
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}
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if(! $vcard['photo']) {
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$rawmedia = $item->get_item_tags('http://search.yahoo.com/mrss/','thumbnail');
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if($rawmedia && $rawmedia[0]['attribs']['']['url'])
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$vcard['photo'] = unxmlify($rawmedia[0]['attribs']['']['url']);
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}
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}
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}
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if((! $vcard['photo']) && strlen($email))
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$vcard['photo'] = gravatar_img($email);
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$network = 'feed';
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$priority = 2;
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}
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}
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logger('follow: poll=' . $poll . ' notify=' . $notify . ' profile=' . $profile . ' vcard=' . print_r($vcard,true));
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$vcard['fn'] = notags($vcard['fn']);
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$vcard['nick'] = notags($vcard['nick']);
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// do we have enough information?
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if(! ((x($vcard['fn'])) && ($poll) && ($profile))) {
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notice( t('The profile address specified does not provide adequate information.') . EOL);
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goaway($_SESSION['return_url']);
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}
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if(! $notify) {
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notice( t('Limited profile. This person will be unable to receive direct/personal notifications from you.') . EOL);
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}
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if(! x($vcard,'photo'))
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$vcard['photo'] = $a->get_baseurl() . '/images/default-profile.jpg' ;
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// check if we already have a contact
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// the poll url is more reliable than the profile url, as we may have
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// indirect links or webfinger links
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$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` = '%s' LIMIT 1",
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intval(local_user()),
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dbesc($poll)
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);
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if(count($r)) {
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// update contact
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if($r[0]['rel'] == REL_VIP) {
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q("UPDATE `contact` SET `rel` = %d , `readonly` = 0 WHERE `id` = %d AND `uid` = %d LIMIT 1",
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intval(REL_BUD),
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intval($r[0]['id']),
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intval(local_user())
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);
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}
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}
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else {
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// create contact record
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$r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `alias`, `notify`, `poll`, `name`, `nick`, `photo`, `network`, `rel`, `priority`,
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`blocked`, `readonly`, `pending` )
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VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, 0, 0, 0 ) ",
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intval(local_user()),
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dbesc(datetime_convert()),
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dbesc($profile),
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dbesc($alias),
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dbesc($notify),
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dbesc($poll),
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dbesc($vcard['fn']),
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dbesc($vcard['nick']),
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dbesc($vcard['photo']),
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dbesc($network),
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intval(REL_FAN),
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intval($priority)
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);
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}
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$r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
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dbesc($profile),
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intval(local_user())
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);
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if(! count($r)) {
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notice( t('Unable to retrieve contact information.') . EOL);
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goaway($_SESSION['return_url']);
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// NOTREACHED
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}
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$contact = $r[0];
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$contact_id = $r[0]['id'];
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require_once("Photo.php");
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$photos = import_profile_photo($vcard['photo'],local_user(),$contact_id);
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$r = q("UPDATE `contact` SET `photo` = '%s',
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`thumb` = '%s',
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`micro` = '%s',
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`name-date` = '%s',
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`uri-date` = '%s',
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`avatar-date` = '%s'
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WHERE `id` = %d LIMIT 1
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",
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dbesc($photos[0]),
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dbesc($photos[1]),
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dbesc($photos[2]),
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dbesc(datetime_convert()),
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dbesc(datetime_convert()),
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dbesc(datetime_convert()),
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intval($contact_id)
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);
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// pull feed and consume it, which should subscribe to the hub.
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proc_run('php',"include/poller.php","$contact_id");
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// create a follow slap
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$tpl = load_view_file('view/follow_slap.tpl');
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$slap = replace_macros($tpl, array(
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'$name' => $a->user['username'],
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'$profile_page' => $a->get_baseurl() . '/profile/' . $a->user['nickname'],
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'$photo' => $a->contact['photo'],
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'$thumb' => $a->contact['thumb'],
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'$published' => datetime_convert('UTC','UTC', 'now', ATOM_TIME),
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'$item_id' => 'urn:X-dfrn:' . $a->get_hostname() . ':follow:' . random_string(),
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'$title' => '',
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'$type' => 'text',
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'$content' => t('following'),
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'$nick' => $a->user['nickname'],
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'$verb' => ACTIVITY_FOLLOW,
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'$ostat_follow' => ''
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));
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$r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
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WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
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intval(local_user())
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);
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if((count($r)) && (x($contact,'notify')) && (strlen($contact['notify']))) {
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require_once('include/salmon.php');
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slapper($r[0],$contact['notify'],$slap);
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}
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goaway($_SESSION['return_url']);
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// NOTREACHED
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}
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