pixelfed/app/Http/Controllers/FederationController.php

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2018-05-28 23:50:14 +00:00
<?php
namespace App\Http\Controllers;
use App\Jobs\InboxPipeline\DeleteWorker;
use App\Jobs\InboxPipeline\InboxValidator;
use App\Jobs\InboxPipeline\InboxWorker;
use App\Profile;
use App\Services\AccountService;
use App\Services\InstanceService;
use App\Status;
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use App\Util\Lexer\Nickname;
use App\Util\Site\Nodeinfo;
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use App\Util\Webfinger\Webfinger;
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use Cache;
use Illuminate\Http\Request;
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class FederationController extends Controller
{
public function nodeinfoWellKnown()
{
abort_if(! config('federation.nodeinfo.enabled'), 404);
return response()->json(Nodeinfo::wellKnown(), 200, [], JSON_UNESCAPED_SLASHES)
->header('Access-Control-Allow-Origin', '*');
}
public function nodeinfo()
{
abort_if(! config('federation.nodeinfo.enabled'), 404);
return response()->json(Nodeinfo::get(), 200, [], JSON_UNESCAPED_SLASHES)
->header('Access-Control-Allow-Origin', '*');
}
public function webfinger(Request $request)
{
if (! config('federation.webfinger.enabled') ||
! $request->has('resource') ||
! $request->filled('resource')
) {
return response('', 400);
}
$resource = $request->input('resource');
$domain = config('pixelfed.domain.app');
if (config('federation.activitypub.sharedInbox') &&
$resource == 'acct:'.$domain.'@'.$domain) {
$res = [
'subject' => 'acct:'.$domain.'@'.$domain,
'aliases' => [
'https://'.$domain.'/i/actor',
],
'links' => [
[
'rel' => 'http://webfinger.net/rel/profile-page',
'type' => 'text/html',
'href' => 'https://'.$domain.'/site/kb/instance-actor',
],
[
'rel' => 'self',
'type' => 'application/activity+json',
'href' => 'https://'.$domain.'/i/actor',
],
],
];
return response()->json($res, 200, [], JSON_UNESCAPED_SLASHES);
}
$hash = hash('sha256', $resource);
$key = 'federation:webfinger:sha256:'.$hash;
if ($cached = Cache::get($key)) {
return response()->json($cached, 200, [], JSON_UNESCAPED_SLASHES);
}
if (strpos($resource, $domain) == false) {
return response('', 400);
}
$parsed = Nickname::normalizeProfileUrl($resource);
if (empty($parsed) || $parsed['domain'] !== $domain) {
return response('', 400);
}
$username = $parsed['username'];
$profile = Profile::whereNull('domain')->whereUsername($username)->first();
if (! $profile || $profile->status !== null) {
return response('', 400);
}
$webfinger = (new Webfinger($profile))->generate();
Cache::put($key, $webfinger, 1209600);
return response()->json($webfinger, 200, [], JSON_UNESCAPED_SLASHES)
->header('Access-Control-Allow-Origin', '*');
}
public function hostMeta(Request $request)
{
abort_if(! config('federation.webfinger.enabled'), 404);
$path = route('well-known.webfinger');
$xml = '<?xml version="1.0" encoding="UTF-8"?><XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0"><Link rel="lrdd" type="application/xrd+xml" template="'.$path.'?resource={uri}"/></XRD>';
return response($xml)->header('Content-Type', 'application/xrd+xml');
}
public function userOutbox(Request $request, $username)
{
abort_if(! (bool) config_cache('federation.activitypub.enabled'), 404);
if (! $request->wantsJson()) {
return redirect('/'.$username);
}
$id = AccountService::usernameToId($username);
abort_if(! $id, 404);
$account = AccountService::get($id);
abort_if(! $account || ! isset($account['statuses_count']), 404);
$res = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => 'https://'.config('pixelfed.domain.app').'/users/'.$username.'/outbox',
'type' => 'OrderedCollection',
'totalItems' => $account['statuses_count'] ?? 0,
];
return response(json_encode($res, JSON_UNESCAPED_SLASHES))->header('Content-Type', 'application/activity+json');
}
public function userInbox(Request $request, $username)
{
abort_if(! (bool) config_cache('federation.activitypub.enabled'), 404);
abort_if(! config('federation.activitypub.inbox'), 404);
$headers = $request->headers->all();
$payload = $request->getContent();
if (! $payload || empty($payload)) {
return;
}
$obj = json_decode($payload, true, 8);
if (! isset($obj['id'])) {
return;
}
$domain = parse_url($obj['id'], PHP_URL_HOST);
if (in_array($domain, InstanceService::getBannedDomains())) {
return;
}
if (isset($obj['type']) && $obj['type'] === 'Delete') {
if (isset($obj['object']) && isset($obj['object']['type']) && isset($obj['object']['id'])) {
if ($obj['object']['type'] === 'Person') {
if (Profile::whereRemoteUrl($obj['object']['id'])->exists()) {
dispatch(new DeleteWorker($headers, $payload))->onQueue('inbox');
return;
}
}
if ($obj['object']['type'] === 'Tombstone') {
if (Status::whereObjectUrl($obj['object']['id'])->exists()) {
dispatch(new DeleteWorker($headers, $payload))->onQueue('delete');
return;
}
}
if ($obj['object']['type'] === 'Story') {
dispatch(new DeleteWorker($headers, $payload))->onQueue('story');
return;
}
}
return;
} elseif (isset($obj['type']) && in_array($obj['type'], ['Follow', 'Accept'])) {
dispatch(new InboxValidator($username, $headers, $payload))->onQueue('follow');
} else {
dispatch(new InboxValidator($username, $headers, $payload))->onQueue('high');
}
}
public function sharedInbox(Request $request)
{
abort_if(! (bool) config_cache('federation.activitypub.enabled'), 404);
abort_if(! config('federation.activitypub.sharedInbox'), 404);
$headers = $request->headers->all();
$payload = $request->getContent();
if (! $payload || empty($payload)) {
return;
}
$obj = json_decode($payload, true, 8);
if (! isset($obj['id'])) {
return;
}
$domain = parse_url($obj['id'], PHP_URL_HOST);
if (in_array($domain, InstanceService::getBannedDomains())) {
return;
}
if (isset($obj['type']) && $obj['type'] === 'Delete') {
if (isset($obj['object']) && isset($obj['object']['type']) && isset($obj['object']['id'])) {
if ($obj['object']['type'] === 'Person') {
if (Profile::whereRemoteUrl($obj['object']['id'])->exists()) {
dispatch(new DeleteWorker($headers, $payload))->onQueue('inbox');
return;
}
}
if ($obj['object']['type'] === 'Tombstone') {
if (Status::whereObjectUrl($obj['object']['id'])->exists()) {
dispatch(new DeleteWorker($headers, $payload))->onQueue('delete');
return;
}
}
if ($obj['object']['type'] === 'Story') {
dispatch(new DeleteWorker($headers, $payload))->onQueue('story');
return;
}
}
return;
} elseif (isset($obj['type']) && in_array($obj['type'], ['Follow', 'Accept'])) {
dispatch(new InboxWorker($headers, $payload))->onQueue('follow');
} else {
dispatch(new InboxWorker($headers, $payload))->onQueue('shared');
}
}
public function userFollowing(Request $request, $username)
{
abort_if(! (bool) config_cache('federation.activitypub.enabled'), 404);
$id = AccountService::usernameToId($username);
abort_if(! $id, 404);
$account = AccountService::get($id);
abort_if(! $account || ! isset($account['following_count']), 404);
$obj = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => $request->getUri(),
'type' => 'OrderedCollection',
'totalItems' => $account['following_count'] ?? 0,
];
return response()->json($obj)->header('Content-Type', 'application/activity+json');
}
public function userFollowers(Request $request, $username)
{
abort_if(! (bool) config_cache('federation.activitypub.enabled'), 404);
$id = AccountService::usernameToId($username);
abort_if(! $id, 404);
$account = AccountService::get($id);
abort_if(! $account || ! isset($account['followers_count']), 404);
$obj = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => $request->getUri(),
'type' => 'OrderedCollection',
'totalItems' => $account['followers_count'] ?? 0,
];
return response()->json($obj)->header('Content-Type', 'application/activity+json');
}
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}