<?php
namespace BitApps\FM\Providers\FileManager;
use elFinder;
use elFinderConnector;
\defined('ABSPATH') || exit();
class FinderConnector extends elFinderConnector
{
/**
* Output json
* This function is overridden. Some servers disable `fpassthru` function
* which is used in this function
*
* @param array data to output
*
* @return void
* @throws elFinderAbortException
* @author Dmitry (dio) Levashov
*/
protected function output(array $data)
{
// unlock session data for multiple access
$this->elFinder->getSession()->close();
// client disconnect should abort
ignore_user_abort(false);
if ($this->header) {
self::sendHeader($this->header);
}
if (isset($data['pointer'])) {
// set time limit to 0
elFinder::extendTimeLimit(0);
// send optional header
if (!empty($data['header'])) {
self::sendHeader($data['header']);
}
// clear output buffer
while (ob_get_level() && ob_end_clean()) {
}
$toEnd = true;
$fp = $data['pointer'];
$sendData = !($this->reqMethod === 'HEAD' || !empty($data['info']['xsendfile']));
$psize = null;
if (($this->reqMethod === 'GET' || !$sendData)
&& (elFinder::isSeekableStream($fp) || elFinder::isSeekableUrl($fp))
&& (array_search('Accept-Ranges: none', headers_list()) === false)) {
header('Accept-Ranges: bytes');
if (!empty($_SERVER['HTTP_RANGE'])) {
$size = $data['info']['size'];
$end = $size - 1;
if (preg_match('/bytes=(\d*)-(\d*)(,?)/i', $_SERVER['HTTP_RANGE'], $matches)) {
if (empty($matches[3])) {
if (empty($matches[1]) && $matches[1] !== '0') {
$start = $size - $matches[2];
} else {
$start = intval($matches[1]);
if (!empty($matches[2])) {
$end = intval($matches[2]);
if ($end >= $size) {
$end = $size - 1;
}
$toEnd = ($end == ($size - 1));
}
}
$psize = $end - $start + 1;
header('HTTP/1.1 206 Partial Content');
header('Content-Length: ' . $psize);
header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
// Apache mod_xsendfile dose not support range request
if (isset($data['info']['xsendfile']) && strtolower($data['info']['xsendfile']) === 'x-sendfile') {
if (function_exists('header_remove')) {
header_remove($data['info']['xsendfile']);
} else {
header($data['info']['xsendfile'] . ':');
}
unset($data['info']['xsendfile']);
if ($this->reqMethod !== 'HEAD') {
$sendData = true;
}
}
$sendData && !elFinder::isSeekableUrl($fp) && fseek($fp, $start);
}
}
}
if ($sendData && is_null($psize)) {
elFinder::rewind($fp);
}
} else {
header('Accept-Ranges: none');
if (isset($data['info']) && !$data['info']['size']) {
if (function_exists('header_remove')) {
header_remove('Content-Length');
} else {
header('Content-Length:');
}
}
}
if ($sendData) {
if (function_exists('fpassthru') && ($toEnd || elFinder::isSeekableUrl($fp))) {
// PHP < 5.6 has a bug of fpassthru
// see https://bugs.php.net/bug.php?id=66736
if (version_compare(PHP_VERSION, '5.6', '<')) {
file_put_contents('php://output', $fp);
} else {
fpassthru($fp);
}
} else {
$out = fopen('php://output', 'wb');
stream_copy_to_stream($fp, $out, $psize);
fclose($out);
}
}
if (!empty($data['volume'])) {
$data['volume']->close($fp, $data['info']['hash']);
} else {
fclose($fp);
}
exit();
} else {
self::outputJson($data);
exit(0);
}
}
}