friendica/src/Module/HTTPException/PageNotFound.php

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<?php
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/**
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* @copyright Copyright (C) 2010-2021, the Friendica project
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*
* @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\Module\HTTPException;
use Friendica\BaseModule;
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use Friendica\DI;
use Friendica\Network\HTTPException;
use Psr\Http\Message\ResponseInterface;
class PageNotFound extends BaseModule
{
protected function content(array $request = []): string
{
throw new HTTPException\NotFoundException(DI::l10n()->t('Page not found.'));
}
public function run(array $request = []): ResponseInterface
{
/* The URL provided does not resolve to a valid module.
*
* On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
* We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
* we are going to trap this and redirect back to the requested page. As long as you don't have a critical error on your page
* this will often succeed and eventually do the right thing.
*
* Otherwise we are going to emit a 404 not found.
*/
$queryString = $this->server['QUERY_STRING'];
// Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
if (!empty($queryString) && preg_match('/{[0-9]}/', $queryString) !== 0) {
exit();
}
if (!empty($queryString) && ($queryString === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
$this->logger->info('index.php: dreamhost_error_hack invoked.', ['Original URI' => $this->server['REQUEST_URI']]);
$this->baseUrl->redirect($this->server['REQUEST_URI']);
}
$this->logger->debug('index.php: page not found.', [
'request_uri' => $this->server['REQUEST_URI'],
'address' => $this->server['REMOTE_ADDR'],
'query' => $this->server['QUERY_STRING']
]);
return parent::run($request); // TODO: Change the autogenerated stub
}
}