friendica/src/Module/Xrd.php
2023-02-18 21:12:21 +01:00

327 lines
8.6 KiB
PHP

<?php
/**
* @copyright Copyright (C) 2010-2023, 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\System;
use Friendica\DI;
use Friendica\Model\Photo;
use Friendica\Model\User;
use Friendica\Network\HTTPException\NotFoundException;
use Friendica\Protocol\ActivityNamespace;
use Friendica\Protocol\Salmon;
use Friendica\Util\XML;
/**
* Prints responses to /.well-known/webfinger or /xrd requests
*/
class Xrd extends BaseModule
{
protected function rawContent(array $request = [])
{
// @TODO: Replace with parameter from router
if (DI::args()->getArgv()[0] == 'xrd') {
if (empty($_GET['uri'])) {
return;
}
$uri = urldecode(trim($_GET['uri']));
if (strpos($_SERVER['HTTP_ACCEPT'] ?? '', 'application/jrd+json') !== false) {
$mode = Response::TYPE_JSON;
} else {
$mode = Response::TYPE_XML;
}
} else {
if (empty($_GET['resource'])) {
return;
}
$uri = urldecode(trim($_GET['resource']));
if (strpos($_SERVER['HTTP_ACCEPT'] ?? '', 'application/xrd+xml') !== false) {
$mode = Response::TYPE_XML;
} else {
$mode = Response::TYPE_JSON;
}
}
if (substr($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 NotFoundException('System account was not found. Please setup your Friendica installation properly.');
}
$this->printSystemJSON($owner);
} else {
$owner = User::getOwnerDataByNick($name);
if (empty($owner)) {
DI::logger()->notice('No owner data for user id', ['uri' => $uri, 'name' => $name]);
throw new NotFoundException('Owner was not found for user->uid=' . $name);
}
$alias = str_replace('/profile/', '/~', $owner['url']);
$avatar = Photo::selectFirst(['type'], ['uid' => $owner['uid'], 'profile' => true]);
}
if (empty($avatar)) {
$avatar = ['type' => 'image/jpeg'];
}
if ($mode == Response::TYPE_XML) {
$this->printXML($alias, $owner, $avatar);
} else {
$this->printJSON($alias, $owner, $avatar);
}
}
private function printSystemJSON(array $owner)
{
$baseURL = $this->baseUrl;
$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' => $baseURL . '/contact/follow?url={uri}',
],
[
'rel' => ActivityNamespace::FEED,
'type' => 'application/atom+xml',
'href' => $owner['poll'] ?? $baseURL,
],
[
'rel' => 'salmon',
'href' => $baseURL . '/salmon/' . $owner['nickname'],
],
[
'rel' => 'http://microformats.org/profile/hcard',
'type' => 'text/html',
'href' => $baseURL . '/hcard/' . $owner['nickname'],
],
[
'rel' => 'http://joindiaspora.com/seed_location',
'type' => 'text/html',
'href' => $baseURL,
],
]
];
header('Access-Control-Allow-Origin: *');
System::jsonExit($json, 'application/jrd+json; charset=utf-8');
}
private function printJSON(string $alias, array $owner, array $avatar)
{
$baseURL = $this->baseUrl;
$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' => 'http://webfinger.net/rel/avatar',
'type' => $avatar['type'],
'href' => User::getAvatarUrl($owner),
],
[
'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' => $baseURL . '/contact/follow?url={uri}',
],
[
'rel' => 'magic-public-key',
'href' => 'data:application/magic-public-key,' . Salmon::salmonKey($owner['spubkey']),
],
[
'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 function printXML(string $alias, array $owner, array $avatar)
{
$baseURL = $this->baseUrl;
$xmlString = XML::fromArray([
'XRD' => [
'@attributes' => [
'xmlns' => 'http://docs.oasis-open.org/ns/xri/xrd-1.0',
],
'Subject' => 'acct:' . $owner['addr'],
'1:Alias' => $owner['url'],
'2:Alias' => $alias,
'1:link' => [
'@attributes' => [
'rel' => 'http://purl.org/macgirvin/dfrn/1.0',
'href' => $owner['url']
]
],
'2:link' => [
'@attributes' => [
'rel' => 'http://schemas.google.com/g/2010#updates-from',
'type' => 'application/atom+xml',
'href' => $owner['poll']
]
],
'3:link' => [
'@attributes' => [
'rel' => 'http://webfinger.net/rel/profile-page',
'type' => 'text/html',
'href' => $owner['url']
]
],
'4:link' => [
'@attributes' => [
'rel' => 'http://microformats.org/profile/hcard',
'type' => 'text/html',
'href' => $baseURL . '/hcard/' . $owner['nickname']
]
],
'5:link' => [
'@attributes' => [
'rel' => 'http://webfinger.net/rel/avatar',
'type' => $avatar['type'],
'href' => User::getAvatarUrl($owner)
]
],
'6:link' => [
'@attributes' => [
'rel' => 'http://joindiaspora.com/seed_location',
'type' => 'text/html',
'href' => $baseURL
]
],
'7:link' => [
'@attributes' => [
'rel' => 'salmon',
'href' => $baseURL . '/salmon/' . $owner['nickname']
]
],
'8:link' => [
'@attributes' => [
'rel' => 'http://salmon-protocol.org/ns/salmon-replies',
'href' => $baseURL . '/salmon/' . $owner['nickname']
]
],
'9:link' => [
'@attributes' => [
'rel' => 'http://salmon-protocol.org/ns/salmon-mention',
'href' => $baseURL . '/salmon/' . $owner['nickname'] . '/mention'
]
],
'10:link' => [
'@attributes' => [
'rel' => 'http://ostatus.org/schema/1.0/subscribe',
'template' => $baseURL . '/contact/follow?url={uri}'
]
],
'11:link' => [
'@attributes' => [
'rel' => 'magic-public-key',
'href' => 'data:application/magic-public-key,' . Salmon::salmonKey($owner['spubkey'])
]
],
'12:link' => [
'@attributes' => [
'rel' => 'http://purl.org/openwebauth/v1',
'type' => 'application/x-zot+json',
'href' => $baseURL . '/owa'
]
],
],
]);
header('Access-Control-Allow-Origin: *');
System::httpExit($xmlString, Response::TYPE_XML, 'application/xrd+xml');
}
}