Your IP : 216.73.216.133
<?php
/**
* @package panopticon
* @copyright Copyright (c)2023-2024 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license https://www.gnu.org/licenses/agpl-3.0.txt GNU Affero General Public License, version 3 or later
*/
namespace Akeeba\Panopticon\Controller;
defined('AKEEBA') || die;
use Akeeba\Panopticon\Model\Log;
use Awf\Mvc\Controller;
/**
* Log management controller
*
* @since 1.0.0
*/
class Logs extends Controller
{
/**
* Main page: list the log files, paginated
*
* @return void
* @since 1.0.0
*/
public function main()
{
$this->display();
}
/**
* Read a log file
*
* @return void
* @since 1.0.0
*/
public function read(): void
{
$format = $this->input->get('format', 'html');
if ($format !== 'html')
{
$this->csrfProtection();
}
$view = $this->getView();
$view->setLayout('item' . ($format === 'raw' ? '_table' : ''));
$this->display();
}
/**
* Delete a log file
*
* @return void
* @since 1.0.0
*/
public function delete(): void
{
$this->csrfProtection();
/** @var Log $model */
$model = $this->getModel();
$filePath = $model->getVerifiedLogFilePath();
$returnUrl = $this->container->router->route(sprintf('index.php?view=log'));
if (empty($filePath))
{
$this->setRedirect($returnUrl, $this->getLanguage()->text('PANOPTICON_LOGS_LBL_NOT_DELETED'), 'error');
return;
}
if (!$this->container->fileSystem->delete($filePath))
{
@unlink($this->container->fileSystem->delete($filePath));
}
$this->setRedirect(
$returnUrl,
$this->getLanguage()->sprintf('PANOPTICON_LOGS_LBL_DELETED', basename($filePath)),
'success'
);
}
/**
* Download a log file
*
* @return void
* @since 1.0.0
*/
public function download(): void
{
$this->csrfProtection();
/** @var Log $model */
$model = $this->getModel();
$filePath = $model->getVerifiedLogFilePath();
$returnUrl = $this->container->router->route(sprintf('index.php?view=log'));
if (empty($filePath))
{
$this->setRedirect($returnUrl, $this->getLanguage()->text('PANOPTICON_LOGS_LBL_CANNOT_DOWNLOAD'), 'error');
return;
}
$mimeType = str_ends_with($filePath, '.gz') ? 'application/gzip' : 'text/plain';
$fileName = str_ends_with($filePath, '.gz') ? basename($filePath) : (substr(basename($filePath), 0, -3) . 'txt');
$fileSize = @filesize($filePath);
// Clear output cache
/** @noinspection PhpStatementHasEmptyBodyInspection */
while (@ob_end_clean())
{
// Make sure no junk will come before our content – to the extent we have a say on this...
}
if (function_exists('ini_get') &&
function_exists('ini_set') &&
ini_get('zlib.output_compression'))
{
ini_set('zlib.output_compression', 'Off');
}
@clearstatcache();
// Disable caching
header("Cache-Control: no-store, max-age=0, must-revalidate, no-transform", true);
// Send MIME headers
header('Content-Type: ' . $mimeType);
header("Accept-Ranges: bytes");
header('Content-Disposition: attachment; filename="' . $fileName . '"');
header('Content-Transfer-Encoding: binary');
header('Connection: close');
error_reporting(0);
set_time_limit(0);
// Support resumable downloads
$isResumable = false;
$seek_start = 0;
$seek_end = $fileSize - 1;
$range = $this->input->server->get('HTTP_RANGE', null, 'raw');
if (!is_null($range) || (trim($range) === ''))
{
[$size_unit, $range_orig] = explode('=', $range, 2);
if ($size_unit == 'bytes')
{
//multiple ranges could be specified at the same time, but for simplicity only serve the first range
//http://tools.ietf.org/id/draft-ietf-http-range-retrieval-00.txt
/** @noinspection PhpUnusedLocalVariableInspection */
[$range, $extra_ranges] = explode(',', $range_orig, 2);
}
else
{
$range = '';
}
}
else
{
$range = '';
}
if ($range)
{
// Figure out download piece from range (if set)
[$seek_start, $seek_end] = explode('-', $range, 2);
// Set start and end based on range (if set), else set defaults. Also checks for invalid ranges.
$seek_end = (empty($seek_end)) ? ($fileSize - 1) : min(abs(intval($seek_end)), ($fileSize - 1));
$seek_start =
(empty($seek_start) || $seek_end < abs(intval($seek_start))) ? 0 : max(abs(intval($seek_start)), 0);
$isResumable = true;
}
// Use 1M chunks for echoing the data to the browser
$chunkSize = 1024 * 1024;
$handle = @fopen($filePath, 'r');
if ($handle === false)
{
// Notify of filesize, if this info is available
if ($fileSize > 0)
{
header('Content-Length: ' . (int) $fileSize);
}
@readfile($filePath);
}
else
{
$totalLength = 0;
if ($isResumable)
{
//Only send partial content header if downloading a piece of the file (IE workaround)
if ($seek_start > 0 || $seek_end < ($fileSize - 1))
{
header('HTTP/1.1 206 Partial Content');
}
// Necessary headers
$totalLength = $seek_end - $seek_start + 1;
header('Content-Range: bytes ' . $seek_start . '-' . $seek_end . '/' . $fileSize);
header('Content-Length: ' . $totalLength);
// Seek to start
fseek($handle, $seek_start);
}
else
{
$isResumable = false;
// Notify of filesize, if this info is available
if ($fileSize > 0)
{
header('Content-Length: ' . (int) $fileSize);
}
}
$read = 0;
while (!feof($handle) && ($chunkSize > 0))
{
if ($isResumable && ($totalLength - $read < $chunkSize))
{
$chunkSize = $totalLength - $read;
if ($chunkSize < 0)
{
continue;
}
}
$buffer = fread($handle, $chunkSize);
if ($isResumable)
{
$read += strlen($buffer);
}
echo $buffer;
@ob_flush();
flush();
}
@fclose($handle);
}
$this->container->application->close();
}
}