Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
function auto_redir(App $a, $contact_nick) {
// prevent looping
if(x($_REQUEST,'redir') && intval($_REQUEST['redir']))
return;
if((! $contact_nick) || ($contact_nick === $a->user['nickname']))
return;
if(local_user()) {
// We need to find out if $contact_nick is a user on this hub, and if so, if I
// am a contact of that user. However, that user may have other contacts with the
// same nickname as me on other hubs or other networks. Exclude these by requiring
// that the contact have a local URL. I will be the only person with my nickname at
// this URL, so if a result is found, then I am a contact of the $contact_nick user.
//
// We also have to make sure that I'm a legitimate contact--I'm not blocked or pending.
$baseurl = App::get_baseurl();
$domain_st = strpos($baseurl, "://");
if($domain_st === false)
return;
$baseurl = substr($baseurl, $domain_st + 3);
$nurl = normalise_link($baseurl);
/// @todo Why is there a query for "url" *and* "nurl"? Especially this normalising is strange.
$r = q("SELECT `id` FROM `contact` WHERE `uid` = (SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1)
AND `nick` = '%s' AND NOT `self` AND (`url` LIKE '%%%s%%' OR `nurl` LIKE '%%%s%%') AND NOT `blocked` AND NOT `pending` LIMIT 1",
dbesc($contact_nick),
dbesc($a->user['nickname']),
dbesc($baseurl),
dbesc($nurl)
);
if ((! dbm::is_result($r)) || $r[0]['id'] == remote_user()) {
return;
}
$r = q("SELECT * FROM contact WHERE nick = '%s'
AND network = '%s' AND uid = %d AND url LIKE '%%%s%%' LIMIT 1",
dbesc($contact_nick),
dbesc(NETWORK_DFRN),
intval(local_user()),
dbesc($baseurl)
);
if (! dbm::is_result($r)) {
return;
}
$cid = $r[0]['id'];
$dfrn_id = $orig_id = (($r[0]['issued-id']) ? $r[0]['issued-id'] : $r[0]['dfrn-id']);
if($r[0]['duplex'] && $r[0]['issued-id']) {
$orig_id = $r[0]['issued-id'];
$dfrn_id = '1:' . $orig_id;
}
if($r[0]['duplex'] && $r[0]['dfrn-id']) {
$orig_id = $r[0]['dfrn-id'];
$dfrn_id = '0:' . $orig_id;
}
// ensure that we've got a valid ID. There may be some edge cases with forums and non-duplex mode
// that may have triggered some of the "went to {profile/intro} and got an RSS feed" issues
if(strlen($dfrn_id) < 3)
return;
$sec = random_string();
q("INSERT INTO `profile_check` ( `uid`, `cid`, `dfrn_id`, `sec`, `expire`)
VALUES( %d, %s, '%s', '%s', %d )",
intval(local_user()),
intval($cid),
dbesc($dfrn_id),
dbesc($sec),
intval(time() + 45)
);
$url = curPageURL();
logger('auto_redir: ' . $r[0]['name'] . ' ' . $sec, LOGGER_DEBUG);
$dest = (($url) ? '&destination_url=' . $url : '');
goaway ($r[0]['poll'] . '?dfrn_id=' . $dfrn_id
. '&dfrn_version=' . DFRN_PROTOCOL_VERSION . '&type=profile&sec=' . $sec . $dest );
}
return;
}