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Enable multi-auth in dfrn autoRedir 

Update checks to account for a user being authenticated to multiple
contacts on the local server at the same time.
It was also necessary to remove a looping procection to make this work
correcly with browsers that open multiple connections because the
information about what contacts are authenticated is stored in the PHP
session.
pull/7305/head
Dean Townsley 2019-06-22 12:34:54 -05:00
parent b5e195b415
commit 042fcfeb50
1 changed files with 19 additions and 2 deletions
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21
src/Protocol/DFRN.php
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@ -2899,7 +2899,12 @@ class DFRN
{
// prevent looping
if (!empty($_REQUEST['redir'])) {
return;
Logger::log('autoRedir might be looping because is redir', Logger::DEBUG);
// looping prevention also appears to sometimes prevent authentication for images
// because browser may have multiple connections open and load an image on a connection
// whose session wasn't updated when a previous redirect authenticated
// Leaving commented in case looping reappears
//return;
}
if ((! $contact_nick) || ($contact_nick === $a->user['nickname'])) {
@ -2923,6 +2928,9 @@ class DFRN
$baseurl = substr($baseurl, $domain_st + 3);
$nurl = Strings::normaliseLink($baseurl);
$r = DBA::selectFirst("user", ["uid"], ["nickname" => DBA::escape($contact_nick)], []);
$contact_uid = $r["uid"];
/// @todo Why is there a query for "url" *and* "nurl"? Especially this normalising is strange.
$r = q("SELECT `id` FROM `contact` WHERE `uid` = (SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1)
AND `nick` = '%s' AND NOT `self` AND (`url` LIKE '%%%s%%' OR `nurl` LIKE '%%%s%%') AND NOT `blocked` AND NOT `pending` LIMIT 1",
@ -2931,9 +2939,18 @@ class DFRN
DBA::escape($baseurl),
DBA::escape($nurl)
);
if ((! DBA::isResult($r)) || $r[0]['id'] == remote_user()) {
if ((! DBA::isResult($r))) {
return;
}
// test if redirect authentication already succeeded
// Note that "contact" in the sense used in $contact_nick and the sense in the $remote[]["cid"]
// in the session are opposite. In the session variable the user currently fetching is the contact
// while $contact_nick is the nick of tho user who owns the stuff being fetched.
foreach (\Friendica\Core\Session::get('remote', []) as $visitor) {
if ($visitor['uid'] == $contact_uid && $visitor['cid'] == $r[0]['id']) {
return;
}
}
$r = q("SELECT * FROM contact WHERE nick = '%s'
AND network = '%s' AND uid = %d AND url LIKE '%%%s%%' LIMIT 1",