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 redir_init(App $a) {
$url = ((x($_GET,'url')) ? $_GET['url'] : '');
$quiet = ((x($_GET,'quiet')) ? '&quiet=1' : '');
$con_url = ((x($_GET,'conurl')) ? $_GET['conurl'] : '');
// traditional DFRN
if( $con_url || (local_user() && $a->argc > 1 && intval($a->argv[1])) ) {
if($con_url) {
$con_url = str_replace('https', 'http', $con_url);
$r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d LIMIT 1",
dbesc($con_url),
intval(local_user())
);
if((! dbm::is_result($r)) || ($r[0]['network'] !== NETWORK_DFRN))
goaway(z_root());
$cid = $r[0]['id'];
}
else {
$cid = $a->argv[1];
$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($cid),
intval(local_user())
);
if((! dbm::is_result($r)) || ($r[0]['network'] !== NETWORK_DFRN))
goaway(z_root());
}
$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;
}
$sec = random_string();
q("INSERT INTO `profile_check` ( `uid`, `cid`, `dfrn_id`, `sec`, `expire`)
VALUES( %d, %s, '%s', '%s', %d )",
intval(local_user()),
intval($cid),
dbesc($dfrn_id),
dbesc($sec),
intval(time() + 45)
);
logger('mod_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 . $quiet );
}
if (local_user()) {
$handle = $a->user['nickname'] . '@' . substr(App::get_baseurl(),strpos(App::get_baseurl(),'://')+3);
}
if (remote_user()) {
$handle = $_SESSION['handle'];
}
if ($url) {
$url = str_replace('{zid}','&zid=' . $handle,$url);
goaway($url);
}
goaway(z_root());
}