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|
<?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;
$r = null;
if(!empty($_REQUEST['hash'])) {
$r = q("select * from xchan where xchan_hash = '%s' and xchan_deleted = 0",
dbesc($_REQUEST['hash'])
);
}
if(!empty($_REQUEST['address'])) {
$r = q("select * from xchan where xchan_addr = '%s' and xchan_deleted = 0",
dbesc(punify($_REQUEST['address']))
);
}
elseif(local_channel() && !empty($_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(!empty($_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(!empty($_REQUEST['address'])) {
$href = Webfinger::zot_url(punify($_REQUEST['address']));
if($href) {
$_REQUEST['url'] = $href;
}
}
$r = null;
if(!empty($_REQUEST['url'])) {
$zf = Zotfinger::exec($_REQUEST['url']);
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;
}
}
}
|
