210 lines
6.6 KiB
PHP
210 lines
6.6 KiB
PHP
<?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;
|
|
|
|
use Friendica\Core\Logger;
|
|
|
|
/**
|
|
* All modules in Friendica should extend BaseModule, although not all modules
|
|
* need to extend all the methods described here
|
|
*
|
|
* The filename of the module in src/Module needs to match the class name
|
|
* exactly to make the module available.
|
|
*
|
|
* @author Hypolite Petovan <hypolite@mrpetovan.com>
|
|
*/
|
|
abstract class BaseModule
|
|
{
|
|
/**
|
|
* Initialization method common to both content() and post()
|
|
*
|
|
* Extend this method if you need to do any shared processing before both
|
|
* content() or post()
|
|
*/
|
|
public static function init(array $parameters = [])
|
|
{
|
|
}
|
|
|
|
/**
|
|
* Module GET method to display raw content from technical endpoints
|
|
*
|
|
* Extend this method if the module is supposed to return communication data,
|
|
* e.g. from protocol implementations.
|
|
*/
|
|
public static function rawContent(array $parameters = [])
|
|
{
|
|
// echo '';
|
|
// exit;
|
|
}
|
|
|
|
/**
|
|
* Module GET method to display any content
|
|
*
|
|
* Extend this method if the module is supposed to return any display
|
|
* through a GET request. It can be an HTML page through templating or a
|
|
* XML feed or a JSON output.
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function content(array $parameters = [])
|
|
{
|
|
$o = '';
|
|
|
|
return $o;
|
|
}
|
|
|
|
/**
|
|
* Module POST method to process submitted data
|
|
*
|
|
* Extend this method if the module is supposed to process POST requests.
|
|
* Doesn't display any content
|
|
*/
|
|
public static function post(array $parameters = [])
|
|
{
|
|
// DI::baseurl()->redirect('module');
|
|
}
|
|
|
|
/**
|
|
* Called after post()
|
|
*
|
|
* Unknown purpose
|
|
*/
|
|
public static function afterpost(array $parameters = [])
|
|
{
|
|
}
|
|
|
|
/*
|
|
* Functions used to protect against Cross-Site Request Forgery
|
|
* The security token has to base on at least one value that an attacker can't know - here it's the session ID and the private key.
|
|
* In this implementation, a security token is reusable (if the user submits a form, goes back and resubmits the form, maybe with small changes;
|
|
* or if the security token is used for ajax-calls that happen several times), but only valid for a certain amount of time (3hours).
|
|
* The "typename" separates the security tokens of different types of forms. This could be relevant in the following case:
|
|
* A security token is used to protect a link from CSRF (e.g. the "delete this profile"-link).
|
|
* If the new page contains by any chance external elements, then the used security token is exposed by the referrer.
|
|
* Actually, important actions should not be triggered by Links / GET-Requests at all, but sometimes they still are,
|
|
* so this mechanism brings in some damage control (the attacker would be able to forge a request to a form of this type, but not to forms of other types).
|
|
*/
|
|
public static function getFormSecurityToken($typename = '')
|
|
{
|
|
$a = DI::app();
|
|
|
|
$timestamp = time();
|
|
$sec_hash = hash('whirlpool', ($a->user['guid'] ?? '') . ($a->user['prvkey'] ?? '') . session_id() . $timestamp . $typename);
|
|
|
|
return $timestamp . '.' . $sec_hash;
|
|
}
|
|
|
|
public static function checkFormSecurityToken($typename = '', $formname = 'form_security_token')
|
|
{
|
|
$hash = null;
|
|
|
|
if (!empty($_REQUEST[$formname])) {
|
|
/// @TODO Careful, not secured!
|
|
$hash = $_REQUEST[$formname];
|
|
}
|
|
|
|
if (!empty($_SERVER['HTTP_X_CSRF_TOKEN'])) {
|
|
/// @TODO Careful, not secured!
|
|
$hash = $_SERVER['HTTP_X_CSRF_TOKEN'];
|
|
}
|
|
|
|
if (empty($hash)) {
|
|
return false;
|
|
}
|
|
|
|
$max_livetime = 10800; // 3 hours
|
|
|
|
$a = DI::app();
|
|
|
|
$x = explode('.', $hash);
|
|
if (time() > (intval($x[0]) + $max_livetime)) {
|
|
return false;
|
|
}
|
|
|
|
$sec_hash = hash('whirlpool', ($a->user['guid'] ?? '') . ($a->user['prvkey'] ?? '') . session_id() . $x[0] . $typename);
|
|
|
|
return ($sec_hash == $x[1]);
|
|
}
|
|
|
|
public static function getFormSecurityStandardErrorMessage()
|
|
{
|
|
return DI::l10n()->t("The form security token was not correct. This probably happened because the form has been opened for too long \x28>3 hours\x29 before submitting it.") . EOL;
|
|
}
|
|
|
|
public static function checkFormSecurityTokenRedirectOnError($err_redirect, $typename = '', $formname = 'form_security_token')
|
|
{
|
|
if (!self::checkFormSecurityToken($typename, $formname)) {
|
|
$a = DI::app();
|
|
Logger::log('checkFormSecurityToken failed: user ' . $a->user['guid'] . ' - form element ' . $typename);
|
|
Logger::log('checkFormSecurityToken failed: _REQUEST data: ' . print_r($_REQUEST, true), Logger::DATA);
|
|
notice(self::getFormSecurityStandardErrorMessage());
|
|
DI::baseUrl()->redirect($err_redirect);
|
|
}
|
|
}
|
|
|
|
public static function checkFormSecurityTokenForbiddenOnError($typename = '', $formname = 'form_security_token')
|
|
{
|
|
if (!self::checkFormSecurityToken($typename, $formname)) {
|
|
$a = DI::app();
|
|
Logger::log('checkFormSecurityToken failed: user ' . $a->user['guid'] . ' - form element ' . $typename);
|
|
Logger::log('checkFormSecurityToken failed: _REQUEST data: ' . print_r($_REQUEST, true), Logger::DATA);
|
|
|
|
throw new \Friendica\Network\HTTPException\ForbiddenException();
|
|
}
|
|
}
|
|
|
|
protected static function getContactFilterTabs(string $baseUrl, string $current, bool $displayCommonTab)
|
|
{
|
|
$tabs = [
|
|
[
|
|
'label' => DI::l10n()->t('All contacts'),
|
|
'url' => $baseUrl . '/contacts',
|
|
'sel' => !$current || $current == 'all' ? 'active' : '',
|
|
],
|
|
[
|
|
'label' => DI::l10n()->t('Followers'),
|
|
'url' => $baseUrl . '/contacts/followers',
|
|
'sel' => $current == 'followers' ? 'active' : '',
|
|
],
|
|
[
|
|
'label' => DI::l10n()->t('Following'),
|
|
'url' => $baseUrl . '/contacts/following',
|
|
'sel' => $current == 'following' ? 'active' : '',
|
|
],
|
|
[
|
|
'label' => DI::l10n()->t('Mutual friends'),
|
|
'url' => $baseUrl . '/contacts/mutuals',
|
|
'sel' => $current == 'mutuals' ? 'active' : '',
|
|
],
|
|
];
|
|
|
|
if ($displayCommonTab) {
|
|
$tabs[] = [
|
|
'label' => DI::l10n()->t('Common'),
|
|
'url' => $baseUrl . '/contacts/common',
|
|
'sel' => $current == 'common' ? 'active' : '',
|
|
];
|
|
}
|
|
|
|
return $tabs;
|
|
}
|
|
}
|