bitPickups/friendica_2019-12_sharedHosting_hotFix
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The access to the profile and the list of followers/followings can now be restricted

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This commit is contained in:
Michael 2023-07-21 07:06:55 +00:00
parent d84866cf8c
commit 26aa38341f
3 changed files with 52 additions and 8 deletions
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2
src/Module/Profile/Profile.php
View file

@ -84,7 +84,7 @@ class Profile extends BaseProfile
$user = $this->database->selectFirst('user', ['uid'], ['nickname' => $this->parameters['nickname'] ?? '', 'account_removed' => false]);
if ($user) {
try {
$data = ActivityPub\Transmitter::getProfile($user['uid']);
$data = ActivityPub\Transmitter::getProfile($user['uid'], !ActivityPub::isAcceptedRequester($user['uid']));
header('Access-Control-Allow-Origin: *');
header('Cache-Control: max-age=23200, stale-while-revalidate=23200');
System::jsonExit($data, 'application/activity+json');

43
src/Protocol/ActivityPub.php
View file

@ -23,10 +23,13 @@ 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;
use Friendica\Util\Network;
/**
* ActivityPub Protocol class
@ -277,4 +280,44 @@ class ActivityPub
{
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', ['uid' => $uid, 'agent' => $_SERVER['HTTP_USER_AGENT'] ?? '', 'called_by' => $called_by]);
return false;
}
$apcontact = APContact::getByURL($signer);
if (empty($apcontact)) {
Logger::debug('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' => $called_by]);
return false;
}
// Check added as a precaution. It should not occur.
if (Network::isUrlBlocked($apcontact['baseurl'])) {
Logger::info('Requesting domain is blocked', ['uid' => $uid, 'id' => $apcontact['gsid'], 'url' => $apcontact['baseurl'], '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' => $contact['gsid'], 'url' => $contact['baseurl'], 'signer' => $signer, 'called_by' => $called_by]);
return true;
}
}

15
src/Protocol/ActivityPub/Transmitter.php
View file

@ -195,7 +195,7 @@ class Transmitter
}
// When we hide our friends we will only show the pure number but don't allow more.
$show_contacts = empty($owner['hide-friends']);
$show_contacts = ActivityPub::isAcceptedRequester($owner['uid']) && empty($owner['hide-friends']);
// Allow fetching the contact list when the requester is part of the list.
if (($owner['page-flags'] == User::PAGE_FLAGS_PRVGROUP) && !empty($requester)) {
@ -337,12 +337,13 @@ class Transmitter
/**
* Return the ActivityPub profile of the given user
*
* @param int $uid User ID
* @param int $uid User ID
* @param bool $limited If limited, only the basic information is returned
* @return array with profile data
* @throws HTTPException\NotFoundException
* @throws HTTPException\InternalServerErrorException
*/
public static function getProfile(int $uid): array
public static function getProfile(int $uid, bool $limited = false): array
{
$owner = User::getOwnerDataById($uid);
if (!isset($owner['id'])) {
@ -372,16 +373,16 @@ class Transmitter
$data['preferredUsername'] = $owner['nick'];
$data['name'] = $owner['name'];
if (!empty($owner['country-name'] . $owner['region'] . $owner['locality'])) {
if (!$limited && !empty($owner['country-name'] . $owner['region'] . $owner['locality'])) {
$data['vcard:hasAddress'] = ['@type' => 'vcard:Home', 'vcard:country-name' => $owner['country-name'],
'vcard:region' => $owner['region'], 'vcard:locality' => $owner['locality']];
}
if (!empty($owner['about'])) {
if (!$limited && !empty($owner['about'])) {
$data['summary'] = BBCode::convertForUriId($owner['uri-id'] ?? 0, $owner['about'], BBCode::EXTERNAL);
}
if (!empty($owner['xmpp']) || !empty($owner['matrix'])) {
if (!$limited && (!empty($owner['xmpp']) || !empty($owner['matrix']))) {
$data['vcard:hasInstantMessage'] = [];
if (!empty($owner['xmpp'])) {
@ -399,7 +400,7 @@ class Transmitter
'owner' => $owner['url'],
'publicKeyPem' => $owner['pubkey']];
$data['endpoints'] = ['sharedInbox' => DI::baseUrl() . '/inbox'];
if ($uid != 0) {
if (!$limited && $uid != 0) {
$data['icon'] = ['type' => 'Image', 'url' => User::getAvatarUrl($owner)];
$resourceid = Photo::ridFromURI($owner['photo']);