<?php
/**
- * @file /src/Util/Security.php
+ * @copyright Copyright (C) 2020, Friendica
+ *
+ * @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\Util;
-use Friendica\BaseObject;
use Friendica\Database\DBA;
use Friendica\Model\Contact;
use Friendica\Model\Group;
use Friendica\Model\User;
+use Friendica\Core\Session;
/**
* Secures that User is allow to do requests
*/
-class Security extends BaseObject
+class Security
{
public static function canWriteToUserWall($owner)
{
static $verified = 0;
- if (!local_user() && !remote_user()) {
+ if (!Session::isAuthenticated()) {
return false;
}
return true;
}
- if (remote_user($owner)) {
+ if (!empty(Session::getRemoteContactID($owner))) {
// use remembered decision and avoid a DB lookup for each and every display item
// DO NOT use this function if there are going to be multiple owners
// We have a contact-id for an authenticated remote user, this block determines if the contact
} elseif ($verified === 1) {
return false;
} else {
- $cid = remote_user($owner);
+ $cid = Session::getRemoteContactID($owner);
if (!$cid) {
return false;
}
return false;
}
- /// @TODO $groups should be array
- public static function getPermissionsSQLByUserId($owner_id, $remote_verified = false, $groups = null)
+ /**
+ * Create a permission string for an element based on the visitor
+ *
+ * @param integer $owner_id User ID of the owner of the element
+ * @param boolean $accessible Should the element be accessible anyway?
+ * @return string SQL permissions
+ */
+ public static function getPermissionsSQLByUserId(int $owner_id, bool $accessible = false)
{
$local_user = local_user();
- $remote_user = remote_user($owner_id);
+ $remote_contact = Session::getRemoteContactID($owner_id);
+ $acc_sql = '';
+
+ if ($accessible) {
+ $acc_sql = ' OR `accessible`';
+ }
/*
* Construct permissions
*
* default permissions - anonymous user
*/
- $sql = " AND allow_cid = ''
+ $sql = " AND (allow_cid = ''
AND allow_gid = ''
AND deny_cid = ''
- AND deny_gid = '' ";
+ AND deny_gid = ''" . $acc_sql . ") ";
/*
* Profile owner - everything is visible
if ($local_user && $local_user == $owner_id) {
$sql = '';
/*
- * Authenticated visitor. Unless pre-verified,
- * check that the contact belongs to this $owner_id
- * and load the groups the visitor belongs to.
- * If pre-verified, the caller is expected to have already
- * done this and passed the groups into this function.
+ * Authenticated visitor. Load the groups the visitor belongs to.
*/
- } elseif ($remote_user) {
- $cid = \Friendica\Core\Session::getVisitorContactIDForUserID($owner_id);
-
- /*
- * Authenticated visitor. Unless pre-verified,
- * check that the contact belongs to this $owner_id
- * and load the groups the visitor belongs to.
- * If pre-verified, the caller is expected to have already
- * done this and passed the groups into this function.
- */
-
- if (!$remote_verified) {
- if ($cid && DBA::exists('contact', ['id' => $cid, 'uid' => $owner_id, 'blocked' => false])) {
- $remote_verified = true;
- $groups = Group::getIdsByContactId($cid);
- }
- }
+ } elseif ($remote_contact) {
+ $gs = '<<>>'; // should be impossible to match
- if ($remote_verified) {
- $gs = '<<>>'; // should be impossible to match
+ $groups = Group::getIdsByContactId($remote_contact);
- if (is_array($groups)) {
- foreach ($groups as $g) {
- $gs .= '|<' . intval($g) . '>';
- }
+ if (is_array($groups)) {
+ foreach ($groups as $g) {
+ $gs .= '|<' . intval($g) . '>';
}
-
- $sql = sprintf(
- " AND (NOT (deny_cid REGEXP '<%d>' OR deny_gid REGEXP '%s')
- AND (allow_cid REGEXP '<%d>' OR allow_gid REGEXP '%s' OR (allow_cid = '' AND allow_gid = ''))) ",
- intval($cid),
- DBA::escape($gs),
- intval($cid),
- DBA::escape($gs)
- );
}
+
+ $sql = sprintf(
+ " AND (NOT (deny_cid REGEXP '<%d>' OR deny_gid REGEXP '%s')
+ AND (allow_cid REGEXP '<%d>' OR allow_gid REGEXP '%s'
+ OR (allow_cid = '' AND allow_gid = ''))" . $acc_sql . ") ",
+ intval($remote_contact),
+ DBA::escape($gs),
+ intval($remote_contact),
+ DBA::escape($gs)
+ );
}
return $sql;
}
projects / friendica.git / blobdiff