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
/**
* @file mod/xrd.php
*/
use Friendica\App;
use Friendica\Core\Addon;
use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\Protocol\Salmon;
function xrd_init(App $a)
{
if ($a->argv[0] == 'xrd') {
if (empty($_GET['uri'])) {
killme();
}
$uri = urldecode(notags(trim($_GET['uri'])));
if (defaults($_SERVER, 'HTTP_ACCEPT', '') == 'application/jrd+json') {
$mode = 'json';
} else {
$mode = 'xml';
}
} else {
if (empty($_GET['resource'])) {
killme();
}
$uri = urldecode(notags(trim($_GET['resource'])));
if (defaults($_SERVER, 'HTTP_ACCEPT', '') == 'application/xrd+xml') {
$mode = 'xml';
} else {
$mode = 'json';
}
}
if (substr($uri, 0, 4) === 'http') {
$name = ltrim(basename($uri), '~');
} else {
$local = str_replace('acct:', '', $uri);
if (substr($local, 0, 2) == '//') {
$local = substr($local, 2);
}
$name = substr($local, 0, strpos($local, '@'));
}
$user = DBA::selectFirst('user', [], ['nickname' => $name]);
if (!DBA::isResult($user)) {
killme();
}
$profile_url = System::baseUrl().'/profile/'.$user['nickname'];
$alias = str_replace('/profile/', '/~', $profile_url);
$addr = 'acct:'.$user['nickname'].'@'.$a->get_hostname();
if ($a->get_path()) {
$addr .= '/'.$a->get_path();
}
if ($mode == 'xml') {
xrd_xml($a, $addr, $alias, $profile_url, $user);
} else {
xrd_json($a, $addr, $alias, $profile_url, $user);
}
}
function xrd_json($a, $uri, $alias, $profile_url, $r)
{
$salmon_key = Salmon::salmonKey($r['spubkey']);
header('Access-Control-Allow-Origin: *');
header("Content-type: application/json; charset=utf-8");
$json = ['subject' => $uri,
'aliases' => [$alias, $profile_url],
'links' => [
['rel' => NAMESPACE_DFRN, 'href' => $profile_url],
['rel' => NAMESPACE_FEED, 'type' => 'application/atom+xml', 'href' => System::baseUrl().'/dfrn_poll/'.$r['nickname']],
['rel' => 'http://webfinger.net/rel/profile-page', 'type' => 'text/html', 'href' => $profile_url],
['rel' => 'http://microformats.org/profile/hcard', 'type' => 'text/html', 'href' => System::baseUrl().'/hcard/'.$r['nickname']],
['rel' => NAMESPACE_POCO, 'href' => System::baseUrl().'/poco/'.$r['nickname']],
['rel' => 'http://webfinger.net/rel/avatar', 'type' => 'image/jpeg', 'href' => System::baseUrl().'/photo/profile/'.$r['uid'].'.jpg'],
['rel' => 'http://joindiaspora.com/seed_location', 'type' => 'text/html', 'href' => System::baseUrl()],
['rel' => 'salmon', 'href' => System::baseUrl().'/salmon/'.$r['nickname']],
['rel' => 'http://salmon-protocol.org/ns/salmon-replies', 'href' => System::baseUrl().'/salmon/'.$r['nickname']],
['rel' => 'http://salmon-protocol.org/ns/salmon-mention', 'href' => System::baseUrl().'/salmon/'.$r['nickname'].'/mention'],
['rel' => 'http://ostatus.org/schema/1.0/subscribe', 'template' => System::baseUrl().'/follow?url={uri}'],
['rel' => 'magic-public-key', 'href' => 'data:application/magic-public-key,'.$salmon_key],
['rel' => 'http://purl.org/openwebauth/v1', 'type' => 'application/x-dfrn+json', 'href' => System::baseUrl().'/owa']
]
];
echo json_encode($json);
killme();
}
function xrd_xml($a, $uri, $alias, $profile_url, $r)
{
$salmon_key = Salmon::salmonKey($r['spubkey']);
header('Access-Control-Allow-Origin: *');
header("Content-type: text/xml");
$tpl = get_markup_template('xrd_person.tpl');
$o = replace_macros($tpl, [
'$nick' => $r['nickname'],
'$accturi' => $uri,
'$alias' => $alias,
'$profile_url' => $profile_url,
'$hcard_url' => System::baseUrl() . '/hcard/' . $r['nickname'],
'$atom' => System::baseUrl() . '/dfrn_poll/' . $r['nickname'],
'$poco_url' => System::baseUrl() . '/poco/' . $r['nickname'],
'$photo' => System::baseUrl() . '/photo/profile/' . $r['uid'] . '.jpg',
'$baseurl' => System::baseUrl(),
'$salmon' => System::baseUrl() . '/salmon/' . $r['nickname'],
'$salmen' => System::baseUrl() . '/salmon/' . $r['nickname'] . '/mention',
'$subscribe' => System::baseUrl() . '/follow?url={uri}',
'$openwebauth' => System::baseUrl() . '/owa',
'$modexp' => 'data:application/magic-public-key,' . $salmon_key]
);
$arr = ['user' => $r, 'xml' => $o];
Addon::callHooks('personal_xrd', $arr);
echo $arr['xml'];
killme();
}