Removed unneeded check

[friendica.git] / src / Protocol / ActivityPub.php

diff --git a/src/Protocol/ActivityPub.php b/src/Protocol/ActivityPub.php
index 0f62ab5376ca192f9cb9ad59ab4f9a74703a1b5c..570348be242d7487599950a4b2a39a6cacbb3351 100644 (file)
--- a/src/Protocol/ActivityPub.php
+++ b/src/Protocol/ActivityPub.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2021, the Friendica project
+ * @copyright Copyright (C) 2010-2023, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -21,8 +21,11 @@
 
 namespace Friendica\Protocol;
 
+use Friendica\Core\Logger;
 use Friendica\Core\Protocol;
+use Friendica\Core\System;
 use Friendica\Model\APContact;
+use Friendica\Model\Contact;
 use Friendica\Model\User;
 use Friendica\Util\HTTPSignature;
 use Friendica\Util\JsonLD;
@@ -51,8 +54,8 @@ use Friendica\Util\JsonLD;
  * - Polling the outboxes for missing content?
  *
  * Missing parts from DFRN:
- * - Public Forum
- * - Private Forum
+ * - Public Group
+ * - Private Group
  * - Relocation
  */
 class ActivityPub
@@ -64,21 +67,39 @@ class ActivityPub
                'diaspora' => 'https://diasporafoundation.org/ns/',
                'litepub' => 'http://litepub.social/ns#',
                'toot' => 'http://joinmastodon.org/ns#',
+               'featured' => [
+                       "@id" => "toot:featured",
+                       "@type" => "@id",
+               ],
+               'schema' => 'http://schema.org#',
                'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
                'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag',
+               'quoteUrl' => 'as:quoteUrl',
+               'conversation' => 'ostatus:conversation',
                'directMessage' => 'litepub:directMessage',
-               'discoverable' => 'toot:discoverable']];
+               'discoverable' => 'toot:discoverable',
+               'PropertyValue' => 'schema:PropertyValue',
+               'value' => 'schema:value',
+       ]];
        const ACCOUNT_TYPES = ['Person', 'Organization', 'Service', 'Group', 'Application', 'Tombstone'];
        /**
         * Checks if the web request is done for the AP protocol
         *
         * @return bool is it AP?
         */
-       public static function isRequest()
+       public static function isRequest(): bool
        {
-               return stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/activity+json') ||
+               header('Vary: Accept', false);
+
+               $isrequest = stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/activity+json') ||
                        stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/json') ||
                        stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/ld+json');
+
+               if ($isrequest) {
+                       Logger::debug('Is AP request', ['accept' => $_SERVER['HTTP_ACCEPT'], 'agent' => $_SERVER['HTTP_USER_AGENT'] ?? '']);
+               }
+
+               return $isrequest;
        }
 
        /**
@@ -89,12 +110,12 @@ class ActivityPub
         * @return array
         * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
-       public static function fetchContent(string $url, int $uid = 0)
+       public static function fetchContent(string $url, int $uid = 0): array
        {
                return HTTPSignature::fetch($url, $uid);
        }
 
-       private static function getAccountType($apcontact)
+       private static function getAccountType(array $apcontact): int
        {
                $accounttype = -1;
 
@@ -131,7 +152,7 @@ class ActivityPub
         * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         * @throws \ImagickException
         */
-       public static function probeProfile($url, $update = true)
+       public static function probeProfile(string $url, bool $update = true): array
        {
                $apcontact = APContact::getByURL($url, $update);
                if (empty($apcontact)) {
@@ -157,6 +178,8 @@ class ActivityPub
                // $profile['keywords']
                // $profile['location']
                $profile['about'] = $apcontact['about'];
+               $profile['xmpp'] = $apcontact['xmpp'];
+               $profile['matrix'] = $apcontact['matrix'];
                $profile['batch'] = $apcontact['sharedinbox'];
                $profile['notify'] = $apcontact['inbox'];
                $profile['poll'] = $apcontact['outbox'];
@@ -185,9 +208,10 @@ class ActivityPub
         *
         * @param string  $url
         * @param integer $uid User ID
+        * @return void
         * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
-       public static function fetchOutbox($url, $uid)
+       public static function fetchOutbox(string $url, int $uid)
        {
                $data = self::fetchContent($url, $uid);
                if (empty($data)) {
@@ -218,7 +242,7 @@ class ActivityPub
         * @param integer $uid Optional user id
         * @return array Endpoint items
         */
-       public static function fetchItems(string $url, int $uid = 0)
+       public static function fetchItems(string $url, int $uid = 0): array
        {
                $data = self::fetchContent($url, $uid);
                if (empty($data)) {
@@ -251,8 +275,42 @@ class ActivityPub
         * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         * @throws \ImagickException
         */
-       public static function isSupportedByContactUrl($url, $update = null)
+       public static function isSupportedByContactUrl(string $url, $update = null): bool
        {
                return !empty(APContact::getByURL($url, $update));
        }
+
+       public static function isAcceptedRequester(int $uid = 0): bool
+       {
+               $called_by = System::callstack(1);
+
+               $signer = HTTPSignature::getSigner('', $_SERVER);
+               if (!$signer) {
+                       Logger::debug('No signer or invalid signature', ['uid' => $uid, 'agent' => $_SERVER['HTTP_USER_AGENT'] ?? '', 'called_by' => $called_by]);
+                       return false;
+               }
+
+               $apcontact = APContact::getByURL($signer);
+               if (empty($apcontact)) {
+                       Logger::info('APContact not found', ['uid' => $uid, 'handle' => $signer, 'called_by' => $called_by]);
+                       return false;
+               }
+
+               if (empty($apcontact['gsid'] || empty($apcontact['baseurl']))) {
+                       Logger::debug('No server found', ['uid' => $uid, 'signer' => $signer, 'called_by' => $called_by]);
+                       return false;
+               }
+
+               $contact = Contact::getByURL($signer, false, ['id', 'baseurl', 'gsid']);
+               if (!empty($contact) && Contact\User::isBlocked($contact['id'], $uid)) {
+                       Logger::info('Requesting contact is blocked', ['uid' => $uid, 'id' => $contact['id'], 'signer' => $signer, 'baseurl' => $contact['baseurl'], 'called_by' => $called_by]);
+                       return false;
+               }
+
+               // @todo Look for user blocked domains
+
+               Logger::debug('Server is an accepted requester', ['uid' => $uid, 'id' => $apcontact['gsid'], 'url' => $apcontact['baseurl'], 'signer' => $signer, 'called_by' => $called_by]);
+
+               return true;
+       }
 }