<?php
+/**
+ * @copyright Copyright (C) 2010-2021, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
namespace Friendica\Module;
use Friendica\BaseModule;
-use Friendica\Core\L10n;
+use Friendica\Core\Hook;
use Friendica\Core\Renderer;
use Friendica\Core\System;
-use Friendica\Network\Probe;
+use Friendica\DI;
+use Friendica\Model\Photo;
+use Friendica\Model\User;
+use Friendica\Protocol\ActivityNamespace;
+use Friendica\Protocol\Salmon;
+use Friendica\Util\Strings;
+/**
+ * Prints responses to /.well-known/webfinger or /xrd requests
+ */
class Xrd extends BaseModule
{
- public static function init()
+ public static function rawContent(array $parameters = [])
{
- if (local_user()) {
- System::httpExit(
- 403,
- [
- "title" => L10n::t("Public access denied."),
- "description" => L10n::t("Only logged in users are permitted to perform a probing.")
- ]
- );
- exit();
+ // @TODO: Replace with parameter from router
+ if (DI::args()->getArgv()[0] == 'xrd') {
+ if (empty($_GET['uri'])) {
+ return;
+ }
+
+ $uri = urldecode(Strings::escapeTags(trim($_GET['uri'])));
+ if (strpos($_SERVER['HTTP_ACCEPT'] ?? '', 'application/jrd+json') !== false) {
+ $mode = 'json';
+ } else {
+ $mode = 'xml';
+ }
+ } else {
+ if (empty($_GET['resource'])) {
+ return;
+ }
+
+ $uri = urldecode(Strings::escapeTags(trim($_GET['resource'])));
+ if (strpos($_SERVER['HTTP_ACCEPT'] ?? '', 'application/xrd+xml') !== false) {
+ $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($local, '@'));
+ }
+
+ if ($name == User::getActorName()) {
+ $owner = User::getSystemAccount();
+ if (empty($owner)) {
+ throw new \Friendica\Network\HTTPException\NotFoundException();
+ }
+ self::printSystemJSON($owner);
+ } else {
+ $user = User::getByNickname($name);
+ if (empty($user)) {
+ throw new \Friendica\Network\HTTPException\NotFoundException();
+ }
+
+ $owner = User::getOwnerDataById($user['uid']);
+ if (empty($owner)) {
+ DI::logger()->warning('No owner data for user id', ['uri' => $uri, 'name' => $name, 'user' => $user]);
+ throw new \Friendica\Network\HTTPException\NotFoundException();
+ }
+
+ $alias = str_replace('/profile/', '/~', $owner['url']);
+
+ $avatar = Photo::selectFirst(['type'], ['uid' => $owner['uid'], 'profile' => true]);
+ }
+
+ if (empty($avatar)) {
+ $avatar = ['type' => 'image/jpeg'];
+ }
+
+ if ($mode == 'xml') {
+ self::printXML($alias, DI::baseUrl()->get(), $user, $owner, $avatar);
+ } else {
+ self::printJSON($alias, DI::baseUrl()->get(), $owner, $avatar);
}
}
- public static function content()
+ private static function printSystemJSON(array $owner)
{
- $addr = defaults($_GET, 'addr', '');
- $res = '';
+ $json = [
+ 'subject' => 'acct:' . $owner['addr'],
+ 'aliases' => [$owner['url']],
+ 'links' => [
+ [
+ 'rel' => 'http://webfinger.net/rel/profile-page',
+ 'type' => 'text/html',
+ 'href' => $owner['url'],
+ ],
+ [
+ 'rel' => 'self',
+ 'type' => 'application/activity+json',
+ 'href' => $owner['url'],
+ ],
+ [
+ 'rel' => 'http://ostatus.org/schema/1.0/subscribe',
+ 'template' => DI::baseUrl()->get() . '/follow?url={uri}',
+ ],
+ [
+ 'rel' => ActivityNamespace::FEED,
+ 'type' => 'application/atom+xml',
+ 'href' => $owner['poll'] ?? DI::baseUrl()->get(),
+ ],
+ [
+ 'rel' => 'salmon',
+ 'href' => DI::baseUrl()->get() . '/salmon/' . $owner['nickname'],
+ ],
+ [
+ 'rel' => 'http://microformats.org/profile/hcard',
+ 'type' => 'text/html',
+ 'href' => DI::baseUrl()->get() . '/hcard/' . $owner['nickname'],
+ ],
+ [
+ 'rel' => 'http://joindiaspora.com/seed_location',
+ 'type' => 'text/html',
+ 'href' => DI::baseUrl()->get(),
+ ],
+ ]
+ ];
+ header('Access-Control-Allow-Origin: *');
+ System::jsonExit($json, 'application/jrd+json; charset=utf-8');
+ }
- if (!empty($addr)) {
- $res = Probe::lrdd($addr);
- $res = str_replace("\n", '<br />', print_r($res, true));
- }
+ private static function printJSON($alias, $baseURL, $owner, $avatar)
+ {
+ $salmon_key = Salmon::salmonKey($owner['spubkey']);
- $tpl = Renderer::getMarkupTemplate("xrd.tpl");
- return Renderer::replaceMacros($tpl, [
- '$addr' => $addr,
- '$res' => $res,
+ $json = [
+ 'subject' => 'acct:' . $owner['addr'],
+ 'aliases' => [
+ $alias,
+ $owner['url'],
+ ],
+ 'links' => [
+ [
+ 'rel' => ActivityNamespace::DFRN ,
+ 'href' => $owner['url'],
+ ],
+ [
+ 'rel' => ActivityNamespace::FEED,
+ 'type' => 'application/atom+xml',
+ 'href' => $owner['poll'],
+ ],
+ [
+ 'rel' => 'http://webfinger.net/rel/profile-page',
+ 'type' => 'text/html',
+ 'href' => $owner['url'],
+ ],
+ [
+ 'rel' => 'self',
+ 'type' => 'application/activity+json',
+ 'href' => $owner['url'],
+ ],
+ [
+ 'rel' => 'http://microformats.org/profile/hcard',
+ 'type' => 'text/html',
+ 'href' => $baseURL . '/hcard/' . $owner['nickname'],
+ ],
+ [
+ 'rel' => ActivityNamespace::POCO,
+ 'href' => $owner['poco'],
+ ],
+ [
+ 'rel' => 'http://webfinger.net/rel/avatar',
+ 'type' => $avatar['type'],
+ 'href' => User::getAvatarUrlForId($owner['uid']),
+ ],
+ [
+ 'rel' => 'http://joindiaspora.com/seed_location',
+ 'type' => 'text/html',
+ 'href' => $baseURL,
+ ],
+ [
+ 'rel' => 'salmon',
+ 'href' => $baseURL . '/salmon/' . $owner['nickname'],
+ ],
+ [
+ 'rel' => 'http://salmon-protocol.org/ns/salmon-replies',
+ 'href' => $baseURL . '/salmon/' . $owner['nickname'],
+ ],
+ [
+ 'rel' => 'http://salmon-protocol.org/ns/salmon-mention',
+ 'href' => $baseURL . '/salmon/' . $owner['nickname'] . '/mention',
+ ],
+ [
+ 'rel' => 'http://ostatus.org/schema/1.0/subscribe',
+ 'template' => $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-zot+json',
+ 'href' => $baseURL . '/owa',
+ ],
+ ],
+ ];
+
+ header('Access-Control-Allow-Origin: *');
+ System::jsonExit($json, 'application/jrd+json; charset=utf-8');
+ }
+
+ private static function printXML($alias, $baseURL, $user, $owner, $avatar)
+ {
+ $salmon_key = Salmon::salmonKey($owner['spubkey']);
+
+ header('Access-Control-Allow-Origin: *');
+ header('Content-type: text/xml');
+
+ $tpl = Renderer::getMarkupTemplate('xrd_person.tpl');
+
+ $o = Renderer::replaceMacros($tpl, [
+ '$nick' => $owner['nickname'],
+ '$accturi' => 'acct:' . $owner['addr'],
+ '$alias' => $alias,
+ '$profile_url' => $owner['url'],
+ '$hcard_url' => $baseURL . '/hcard/' . $owner['nickname'],
+ '$atom' => $owner['poll'],
+ '$poco_url' => $owner['poco'],
+ '$photo' => User::getAvatarUrlForId($owner['uid']),
+ '$type' => $avatar['type'],
+ '$salmon' => $baseURL . '/salmon/' . $owner['nickname'],
+ '$salmen' => $baseURL . '/salmon/' . $owner['nickname'] . '/mention',
+ '$subscribe' => $baseURL . '/follow?url={uri}',
+ '$openwebauth' => $baseURL . '/owa',
+ '$modexp' => 'data:application/magic-public-key,' . $salmon_key
]);
+
+ $arr = ['user' => $user, 'xml' => $o];
+ Hook::callAll('personal_xrd', $arr);
+
+ echo $arr['xml'];
+ exit();
}
}