mirror of
https://codeberg.org/streams/streams.git
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128 lines
3.3 KiB
PHP
128 lines
3.3 KiB
PHP
<?php
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@require_once('include/zot.php');
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function magic_init(&$a) {
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$addr = ((x($_REQUEST,'addr')) ? $_REQUEST['addr'] : '');
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$hash = ((x($_REQUEST,'hash')) ? $_REQUEST['hash'] : '');
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$dest = ((x($_REQUEST,'dest')) ? $_REQUEST['dest'] : '');
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if($hash) {
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$x = q("select xchan.xchan_url, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
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where hubloc_hash = '%s' and (hubloc_flags & %d) limit 1",
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dbesc($hash),
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intval(HUBLOC_FLAGS_PRIMARY)
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);
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}
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elseif($addr) {
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$x = q("select hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
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where xchan_addr = '%s' and (hubloc_flags & %d) limit 1",
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dbesc($addr),
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intval(HUBLOC_FLAGS_PRIMARY)
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);
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}
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else {
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// See if we know anybody at the dest site that will unlock the door for us
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$b = explode('/',$dest);
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if(count($b) >= 2)
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$u = $b[0] . '//' . $b[2];
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$x = q("select xchan.xchan_url, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
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where hubloc_url = '%s' limit 1",
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dbesc($u)
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);
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}
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if(! $x) {
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// Finger them if they've never been seen here before
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if($addr) {
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$ret = zot_finger($addr,null);
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if($ret['success']) {
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$j = json_decode($ret['body'],true);
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if($j)
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import_xchan($j);
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$x = q("select hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
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where xchan_addr = '%s' and (hubloc_flags & %d) limit 1",
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dbesc($addr),
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intval(HUBLOC_FLAGS_PRIMARY)
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);
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}
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}
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}
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if(! $x) {
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notice( t('Channel not found.') . EOL);
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return;
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}
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// This is ready-made for a plugin that provides a blacklist or "ask me" before blindly authenticating.
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// By default, we'll proceed without asking.
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$arr = array(
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'channel_id' => local_user(),
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'xchan' => $x[0],
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'destination' => $dest,
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'proceed' => true
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);
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call_hooks('magic_auth',$arr);
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$dest = $arr['destination'];
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if(! $arr['proceed'])
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goaway($dest);
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if($x[0]['hubloc_url'] === z_root()) {
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$webbie = substr($x[0]['hubloc_addr'],0,strpos('@',$x[0]['hubloc_addr']));
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switch($dest) {
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case 'channel':
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$desturl = z_root() . '/channel/' . $webbie;
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break;
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case 'photos':
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$desturl = z_root() . '/photos/' . $webbie;
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break;
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case 'profile':
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$desturl = z_root() . '/profile/' . $webbie;
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break;
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default:
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$desturl = $dest;
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break;
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}
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// We are already authenticated on this site and a registered observer.
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// Just redirect.
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goaway($desturl);
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}
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if(local_user()) {
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$channel = $a->get_channel();
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$token = random_string();
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$token_sig = base64url_encode(rsa_sign($token,$channel['channel_prvkey']));
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$channel['token'] = $token;
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$channel['token_sig'] = $token_sig;
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$recip = array(array('guid' => $x[0]['hubloc_guid'],'guid_sig' => $x[0]['hubloc_guid_sig']));
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$hash = random_string();
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$r = q("insert into verify ( type, channel, token, meta, created) values ('%s','%d','%s','%s','%s')",
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dbesc('auth'),
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intval($channel['channel_id']),
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dbesc($token),
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dbesc($x[0]['hubloc_hash']),
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dbesc(datetime_convert())
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);
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goaway($x[0]['hubloc_callback'] . '/' . substr($x[0]['hubloc_addr'],0,strpos($x[0]['hubloc_addr'],'@'))
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. '/?f=&auth=' . $channel['channel_address'] . '@' . $a->get_hostname()
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. '&sec=' . $token . '&dest=' . urlencode($dest) . '&version=' . ZOT_REVISION);
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}
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if(strpos($dest,'/'))
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goaway($dest);
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goaway(z_root());
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}
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