mirror of
https://github.com/pixelfed/pixelfed.git
synced 2024-12-25 22:43:18 +00:00
318 lines
11 KiB
PHP
318 lines
11 KiB
PHP
<?php
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namespace App\Http\Controllers;
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use App\Jobs\InboxPipeline\InboxWorker;
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use App\Jobs\RemoteFollowPipeline\RemoteFollowPipeline;
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use App\Profile;
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use App\Transformer\ActivityPub\ProfileOutbox;
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use App\Util\Lexer\Nickname;
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use App\Util\Webfinger\Webfinger;
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use Auth;
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use Cache;
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use Carbon\Carbon;
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use Illuminate\Http\Request;
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use League\Fractal;
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use App\Util\ActivityPub\Helpers;
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use App\Util\ActivityPub\HttpSignature;
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use \Zttp\Zttp;
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class FederationController extends Controller
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{
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public function authCheck()
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{
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if (!Auth::check()) {
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return abort(403);
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}
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}
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public function authorizeFollow(Request $request)
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{
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$this->authCheck();
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$this->validate($request, [
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'acct' => 'required|string|min:3|max:255',
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]);
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$acct = $request->input('acct');
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$nickname = Nickname::normalizeProfileUrl($acct);
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return view('federation.authorizefollow', compact('acct', 'nickname'));
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}
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public function remoteFollow()
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{
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$this->authCheck();
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return view('federation.remotefollow');
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}
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public function remoteFollowStore(Request $request)
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{
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$this->authCheck();
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$this->validate($request, [
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'url' => 'required|string',
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]);
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if (config('pixelfed.remote_follow_enabled') !== true) {
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abort(403);
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}
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$follower = Auth::user()->profile;
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$url = $request->input('url');
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RemoteFollowPipeline::dispatch($follower, $url);
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return redirect()->back();
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}
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public function nodeinfoWellKnown()
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{
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$res = [
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'links' => [
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[
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'href' => config('pixelfed.nodeinfo.url'),
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'rel' => 'http://nodeinfo.diaspora.software/ns/schema/2.0',
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],
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],
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];
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return response()->json($res);
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}
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public function nodeinfo()
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{
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$res = Cache::remember('api:nodeinfo', now()->addHours(1), function () {
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return [
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'metadata' => [
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'nodeName' => config('app.name'),
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'software' => [
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'homepage' => 'https://pixelfed.org',
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'github' => 'https://github.com/pixelfed',
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'follow' => 'https://mastodon.social/@pixelfed',
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],
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'captcha' => (bool) config('pixelfed.recaptcha'),
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],
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'openRegistrations' => config('pixelfed.open_registration'),
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'protocols' => [
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'activitypub',
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],
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'services' => [
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'inbound' => [],
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'outbound' => [],
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],
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'software' => [
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'name' => 'pixelfed',
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'version' => config('pixelfed.version'),
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],
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'usage' => [
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'localPosts' => \App\Status::whereLocal(true)->whereHas('media')->count(),
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'localComments' => \App\Status::whereLocal(true)->whereNotNull('in_reply_to_id')->count(),
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'users' => [
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'total' => \App\User::count(),
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'activeHalfyear' => \App\AccountLog::select('user_id')->whereAction('auth.login')->where('updated_at', '>',Carbon::now()->subMonths(6)->toDateTimeString())->groupBy('user_id')->get()->count(),
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'activeMonth' => \App\AccountLog::select('user_id')->whereAction('auth.login')->where('updated_at', '>',Carbon::now()->subMonths(1)->toDateTimeString())->groupBy('user_id')->get()->count(),
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],
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],
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'version' => '2.0',
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];
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});
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return response()->json($res, 200, [
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'Access-Control-Allow-Origin' => '*'
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]);
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}
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public function webfinger(Request $request)
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{
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$this->validate($request, ['resource'=>'required|string|min:3|max:255']);
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$resource = $request->input('resource');
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$hash = hash('sha256', $resource);
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$parsed = Nickname::normalizeProfileUrl($resource);
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$username = $parsed['username'];
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$profile = Profile::whereUsername($username)->firstOrFail();
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if($profile->status != null) {
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return ProfileController::accountCheck($profile);
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}
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$webfinger = (new Webfinger($profile))->generate();
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return response()->json($webfinger, 200, [], JSON_PRETTY_PRINT);
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}
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public function hostMeta(Request $request)
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{
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$path = route('well-known.webfinger');
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$xml = <<<XML
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<?xml version="1.0" encoding="UTF-8"?>
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<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
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<Link rel="lrdd" type="application/xrd+xml" template="{$path}?resource={uri}"/>
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</XRD>
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XML;
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return response($xml)->header('Content-Type', 'application/xrd+xml');
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}
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public function userOutbox(Request $request, $username)
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{
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if (config('pixelfed.activitypub_enabled') == false) {
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abort(403);
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}
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$profile = Profile::whereNull('remote_url')->whereUsername($username)->firstOrFail();
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if($profile->status != null) {
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return ProfileController::accountCheck($profile);
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}
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if($profile->is_private) {
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return response()->json(['error'=>'403', 'msg' => 'private profile'], 403);
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}
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$timeline = $profile->statuses()->whereVisibility('public')->orderBy('created_at', 'desc')->paginate(10);
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$fractal = new Fractal\Manager();
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$resource = new Fractal\Resource\Item($profile, new ProfileOutbox());
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$res = $fractal->createData($resource)->toArray();
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return response(json_encode($res['data']))->header('Content-Type', 'application/activity+json');
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}
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public function userInbox(Request $request, $username)
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{
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if (config('pixelfed.activitypub_enabled') == false) {
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abort(403);
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}
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$profile = Profile::whereNull('domain')->whereUsername($username)->firstOrFail();
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if($profile->status != null) {
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return ProfileController::accountCheck($profile);
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}
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$body = $request->getContent();
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$bodyDecoded = json_decode($body, true, 8);
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if($this->verifySignature($request, $profile) == true) {
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InboxWorker::dispatch($request->headers->all(), $profile, $bodyDecoded);
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} else if($this->blindKeyRotation($request, $profile) == true) {
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InboxWorker::dispatch($request->headers->all(), $profile, $bodyDecoded);
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} else {
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abort(400, 'Bad Signature');
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}
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return;
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}
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protected function verifySignature(Request $request, Profile $profile)
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{
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$body = $request->getContent();
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$bodyDecoded = json_decode($body, true, 8);
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$signature = $request->header('signature');
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$date = $request->header('date');
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if(!$signature) {
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abort(400, 'Missing signature header');
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}
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if(!$date) {
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abort(400, 'Missing date header');
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}
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if(!now()->parse($date)->gt(now()->subDays(1)) || !now()->parse($date)->lt(now()->addDays(1))) {
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abort(400, 'Invalid date');
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}
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$signatureData = HttpSignature::parseSignatureHeader($signature);
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$keyId = Helpers::validateUrl($signatureData['keyId']);
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$id = Helpers::validateUrl($bodyDecoded['id']);
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$keyDomain = parse_url($keyId, PHP_URL_HOST);
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$idDomain = parse_url($id, PHP_URL_HOST);
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if(isset($bodyDecoded['object'])
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&& is_array($bodyDecoded['object'])
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&& isset($bodyDecoded['object']['attributedTo'])
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) {
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if(parse_url($bodyDecoded['object']['attributedTo'], PHP_URL_HOST) !== $keyDomain) {
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abort(400, 'Invalid request');
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}
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}
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if(!$keyDomain || !$idDomain || $keyDomain !== $idDomain) {
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abort(400, 'Invalid request');
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}
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$actor = Profile::whereKeyId($keyId)->first();
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if(!$actor) {
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$actor = Helpers::profileFirstOrNew($bodyDecoded['actor']);
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}
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$pkey = openssl_pkey_get_public($actor->public_key);
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$inboxPath = "/users/{$profile->username}/inbox";
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list($verified, $headers) = HTTPSignature::verify($pkey, $signatureData, $request->headers->all(), $inboxPath, $body);
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if($verified == 1) {
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return true;
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} else {
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return false;
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}
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}
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protected function blindKeyRotation(Request $request, Profile $profile)
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{
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$signature = $request->header('signature');
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$date = $request->header('date');
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if(!$signature) {
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abort(400, 'Missing signature header');
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}
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if(!$date) {
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abort(400, 'Missing date header');
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}
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if(!now()->parse($date)->gt(now()->subDays(1)) || !now()->parse($date)->lt(now()->addDays(1))) {
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abort(400, 'Invalid date');
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}
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$signatureData = HttpSignature::parseSignatureHeader($signature);
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$keyId = Helpers::validateUrl($signatureData['keyId']);
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$actor = Profile::whereKeyId($keyId)->whereNotNull('remote_url')->firstOrFail();
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$res = Zttp::timeout(5)->withHeaders([
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'Accept' => 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"',
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'User-Agent' => 'PixelFedBot v0.1 - https://pixelfed.org',
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])->get($actor->remote_url);
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$res = json_decode($res->body(), true, 8);
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if($res['publicKey']['id'] !== $actor->key_id) {
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return false;
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}
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$actor->public_key = $res['publicKey']['publicKeyPem'];
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$actor->save();
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return $this->verifySignature($request, $profile);
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}
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public function userFollowing(Request $request, $username)
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{
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if (config('pixelfed.activitypub_enabled') == false) {
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abort(403);
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}
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$profile = Profile::whereNull('remote_url')
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->whereUsername($username)
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->whereIsPrivate(false)
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->firstOrFail();
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if($profile->status != null) {
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return ProfileController::accountCheck($profile);
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}
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$obj = [
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'@context' => 'https://www.w3.org/ns/activitystreams',
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'id' => $request->getUri(),
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'type' => 'OrderedCollectionPage',
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'totalItems' => $profile->following()->count(),
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'orderedItems' => $profile->following->map(function($f) {
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return $f->permalink();
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})
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];
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return response()->json($obj);
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}
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public function userFollowers(Request $request, $username)
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{
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if (config('pixelfed.activitypub_enabled') == false) {
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abort(403);
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}
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$profile = Profile::whereNull('remote_url')
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->whereUsername($username)
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->whereIsPrivate(false)
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->firstOrFail();
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if($profile->status != null) {
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return ProfileController::accountCheck($profile);
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}
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$obj = [
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'@context' => 'https://www.w3.org/ns/activitystreams',
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'id' => $request->getUri(),
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'type' => 'OrderedCollectionPage',
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'totalItems' => $profile->followers()->count(),
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'orderedItems' => $profile->followers->map(function($f) {
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return $f->permalink();
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})
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];
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return response()->json($obj);
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}
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}
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