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139 lines
3.9 KiB
PHP
139 lines
3.9 KiB
PHP
<?php
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namespace Zotlabs\Module;
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use App;
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use Zotlabs\Web\Controller;
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use Zotlabs\Lib\Libzot;
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use Zotlabs\Lib\Webfinger;
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class Chanview extends Controller {
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function get() {
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$observer = App::get_observer();
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$xchan = null;
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$r = null;
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if ($_REQUEST['hash']) {
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$r = q("select * from xchan where xchan_hash = '%s' limit 1",
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dbesc($_REQUEST['hash'])
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);
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}
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if ($_REQUEST['address']) {
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$r = q("select * from xchan where xchan_addr = '%s' limit 1",
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dbesc(punify($_REQUEST['address']))
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);
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}
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elseif (local_channel() && intval($_REQUEST['cid'])) {
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$r = q("SELECT abook.*, xchan.*
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FROM abook left join xchan on abook_xchan = xchan_hash
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WHERE abook_channel = %d and abook_id = %d LIMIT 1",
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intval(local_channel()),
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intval($_REQUEST['cid'])
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);
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}
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elseif ($_REQUEST['url']) {
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// if somebody re-installed they will have more than one xchan, use the most recent name date as this is
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// the most useful consistently ascending table item we have.
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$r = q("select * from xchan where xchan_url = '%s' order by xchan_name_date desc limit 1",
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dbesc($_REQUEST['url'])
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);
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}
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if ($r) {
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App::$poi = array_shift($r);
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}
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// Here, let's see if we have an xchan. If we don't, how we proceed is determined by what
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// info we do have. If it's a URL, we can offer to visit it directly. If it's a webbie or
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// address, we can and should try to import it. If it's just a hash, we can't continue, but we
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// probably wouldn't have a hash if we don't already have an xchan for this channel.
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if (! App::$poi) {
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logger('mod_chanview: fallback');
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// This is hackish - construct a zot address from the url
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if ($_REQUEST['url']) {
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if (preg_match('/https?\:\/\/(.*?)(\/channel\/|\/profile\/)(.*?)$/ism',$_REQUEST['url'],$matches)) {
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$_REQUEST['address'] = $matches[3] . '@' . $matches[1];
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}
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logger('mod_chanview: constructed address ' . print_r($matches,true));
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}
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$r = null;
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if ($_REQUEST['address']) {
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$href = Webfinger::zot_url(punify($url));
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if ($href) {
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$zf = Zotfinger::exec($href,$channel);
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}
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if (is_array($zf) && array_path_exists('signature/signer',$zf) && $zf['signature']['signer'] === $href && intval($zf['signature']['header_valid'])) {
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$xc = Libzot::import_xchan($zf['data']);
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$r = q("select * from xchan where xchan_addr = '%s' limit 1",
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dbesc($_REQUEST['address'])
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);
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if ($r) {
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App::$poi = $r[0];
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}
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}
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if (! $r) {
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if (discover_by_webbie($_REQUEST['address'])) {
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$r = q("select * from xchan where xchan_addr = '%s' limit 1",
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dbesc($_REQUEST['address'])
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);
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if ($r) {
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App::$poi = $r[0];
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}
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}
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}
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}
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}
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if (! App::$poi) {
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notice( t('Channel not found.') . EOL);
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return;
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}
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$is_zot = false;
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$connected = false;
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$url = App::$poi['xchan_url'];
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if (App::$poi['xchan_network'] === 'zot6') {
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$is_zot = true;
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}
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if (local_channel()) {
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$c = q("select abook_id from abook where abook_channel = %d and abook_xchan = '%s' limit 1",
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intval(local_channel()),
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dbesc(App::$poi['xchan_hash'])
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);
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if ($c) {
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$connected = true;
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}
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}
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// We will load the chanview template if it's a foreign network,
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// just so that we can provide a connect button along with a profile
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// photo. Chances are we can't load the remote profile into an iframe
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// because of cross-domain security headers. So provide a link to
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// the remote profile.
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// If we are already connected, just go to the profile.
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// Zot channels will usually have a connect link.
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if ($is_zot || $connected) {
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if ($is_zot && $observer) {
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$url = zid($url);
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}
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goaway($url);
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}
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else {
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$o = replace_macros(get_markup_template('chanview.tpl'), [
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'$url' => $url,
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'$full' => t('toggle full screen mode')
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]);
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return $o;
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}
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}
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}
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