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<?php
function magic_init(&$a) {
$url = ((x($_REQUEST,'url')) ? $_REQUEST['url'] : '');
$addr = ((x($_REQUEST,'addr')) ? $_REQUEST['addr'] : '');
$hash = ((x($_REQUEST,'hash')) ? $_REQUEST['hash'] : '');
$dest = ((x($_REQUEST,'dest')) ? $_REQUEST['dest'] : '');
if(local_user()) {
if($hash) {
$x = q("select xchan.xchan_url, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
where hublock_hash = '%s' and (hubloc_flags & %d) limit 1",
intval(HUBLOC_FLAGS_PRIMARY)
);
}
elseif($addr) {
$x = q("select hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
where xchan_addr = '%s' and (hubloc_flags & %d) limit 1",
dbesc($addr),
intval(HUBLOC_FLAGS_PRIMARY)
);
}
if(! $x) {
notice( t('Channel not found.') . EOL);
return;
}
if($x[0]['hubloc_url'] === z_root()) {
$webbie = substr($x[0]['hubloc_addr'],0,strpos('@',$x[0]['hubloc_addr']));
switch($dest) {
case 'channel':
$desturl = z_root() . '/channel/' . $webbie;
break;
case 'photos':
$desturl = z_root() . '/photos/' . $webbie;
break;
case 'profile':
$desturl = z_root() . '/profile/' . $webbie;
break;
default:
$desturl = $dest;
break;
}
// We are already authenticated on this site and a registered observer.
// Just redirect.
goaway($desturl);
}
$cid = $argv(1);
$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($cid),
intval(local_user())
);
if(! ($r && count($r)))
goaway(z_root());
$sec = random_string();
// Here's how it works in zot... still a fair bit of code to write
// Create a random tracking code and store it
// Originator (us) redirects to remote connect url with callback URL and tracking code.
// Remote calls us back asynchronously to verify we sent the tracking code.
// Reply with a json document providing the identity details
// Remote verifies these match a known identity and the site matches a known location
// (especially including the current location)
// Once that has happened, the original redirect will be given an authenticated session
// and redirected to the chosen page.
q("INSERT INTO `profile_check` ( `uid`, `cid`, `dfrn_id`, `sec`, `expire`)
VALUES( %d, %s, '%s', '%s', %d )",
intval(local_user()),
intval($cid),
dbesc($dfrn_id),
dbesc($sec),
intval(time() + 45)
);
$local_callback = z_root() . '/auth';
logger('mod_magic: ' . $r[0]['name'] . ' ' . $sec, LOGGER_DEBUG);
$dest = (($url) ? '&url=' . urlencode($url) : '');
goaway ($hubloc['hubloc_connect'] . "?f=&cb=" . urlencode($local_callback) . $dest . "&token=" . $token);
}
if(local_user())
$handle = $a->user['nickname'] . '@' . substr($a->get_baseurl(),strpos($a->get_baseurl(),'://')+3);
if(remote_user())
$handle = $_SESSION['handle'];
if($url) {
$url = str_replace('{zid}','&zid=' . $handle,$url);
goaway($url);
}
goaway(z_root());
}
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