<?php namespace Zotlabs\Module; use App; use Zotlabs\Lib\Libzot; use Zotlabs\Lib\Webfinger; use Zotlabs\Lib\Zotfinger; class Chanview extends \Zotlabs\Web\Controller { function get() { $observer = App::get_observer(); $xchan = null; $r = null; if($_REQUEST['hash']) { $r = q("select * from xchan where xchan_hash = '%s' and xchan_deleted = 0", dbesc($_REQUEST['hash']) ); } if($_REQUEST['address']) { $r = q("select * from xchan where xchan_addr = '%s' and xchan_deleted = 0", dbesc(punify($_REQUEST['address'])) ); } elseif(local_channel() && intval($_REQUEST['cid'])) { $r = q("SELECT abook.*, xchan.* FROM abook left join xchan on abook_xchan = xchan_hash WHERE abook_channel = %d and abook_id = %d and xchan_deleted = 0", intval(local_channel()), intval($_REQUEST['cid']) ); } elseif($_REQUEST['url']) { // if somebody re-installed they will have more than one xchan, use the most recent name date as this is // the most useful consistently ascending table item we have. $r = q("select * from xchan where xchan_url = '%s' and xchan_deleted = 0 order by xchan_name_date desc", dbesc($_REQUEST['url']) ); } if($r) { App::$poi = Libzot::zot_record_preferred($r, 'xchan_network'); } // Here, let's see if we have an xchan. If we don't, how we proceed is determined by what // info we do have. If it's a URL, we can offer to visit it directly. If it's a webbie or // address, we can and should try to import it. If it's just a hash, we can't continue, but we // probably wouldn't have a hash if we don't already have an xchan for this channel. if(! App::$poi) { logger('mod_chanview: fallback'); if($_REQUEST['address']) { $href = Webfinger::zot_url(punify($_REQUEST['address'])); if($href) { $_REQUEST['url'] = $href; } } $r = null; if($_REQUEST['url']) { $zf = Zotfinger::exec($_REQUEST['url'], null); if(array_path_exists('signature/signer',$zf) && $zf['signature']['signer'] === $_REQUEST['url'] && intval($zf['signature']['header_valid'])) { Libzot::import_xchan($zf['data']); $r = q("select * from xchan where xchan_url = '%s' and xchan_deleted = 0", dbesc($_REQUEST['url']) ); if($r) { App::$poi = Libzot::zot_record_preferred($r, 'xchan_network'); } } if(! $r) { if(discover_by_webbie($_REQUEST['url'])) { $r = q("select * from xchan where xchan_url = '%s' and xchan_deleted = 0", dbesc($_REQUEST['url']) ); if($r) { App::$poi = Libzot::zot_record_preferred($r, 'xchan_network'); } } } } } if(! App::$poi) { notice( t('Channel not found.') . EOL); return; } $is_zot = false; $connected = false; $url = App::$poi['xchan_url']; if(App::$poi['xchan_network'] === 'zot6') { $is_zot = true; } if(local_channel()) { $c = q("select abook_id from abook where abook_channel = %d and abook_xchan = '%s' limit 1", intval(local_channel()), dbesc(App::$poi['xchan_hash']) ); if($c) $connected = true; } // We will load the chanview template if it's a foreign network, // just so that we can provide a connect button along with a profile // photo. Chances are we can't load the remote profile into an iframe // because of cross-domain security headers. So provide a link to // the remote profile. // If we are already connected, just go to the profile. // Zot channels will usually have a connect link. if($is_zot || $connected) { if($is_zot && $observer) { $url = zid($url); } goaway($url); } else { $o = replace_macros(get_markup_template('chanview.tpl'),array( '$url' => $url, '$full' => t('toggle full screen mode') )); return $o; } } }