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322 lines
8.0 KiB
322 lines
8.0 KiB
8 years ago
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<?php
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/**
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* Default elFinder connector
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*
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* @author Dmitry (dio) Levashov
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**/
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class elFinderConnector {
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/**
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* elFinder instance
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*
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* @var elFinder
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**/
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protected $elFinder;
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/**
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* Options
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*
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* @var aray
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**/
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protected $options = array();
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/**
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* Must be use output($data) $data['header']
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*
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* @var string
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* @deprecated
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**/
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protected $header = '';
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/**
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* HTTP request method
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*
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* @var string
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*/
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protected $reqMethod = '';
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/**
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* Content type of output JSON
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*
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* @var string
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*/
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protected static $contentType = 'Content-Type: application/json';
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/**
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* Constructor
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*
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* @param $elFinder
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* @param bool $debug
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* @author Dmitry (dio) Levashov
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*/
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public function __construct($elFinder, $debug=false) {
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$this->elFinder = $elFinder;
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$this->reqMethod = strtoupper($_SERVER["REQUEST_METHOD"]);
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if ($debug) {
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self::$contentType = 'Content-Type: text/html; charset=utf-8';
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}
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}
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/**
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* Execute elFinder command and output result
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*
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* @return void
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* @author Dmitry (dio) Levashov
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**/
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public function run() {
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$isPost = $this->reqMethod === 'POST';
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$src = $isPost ? $_POST : $_GET;
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$maxInputVars = (! $src || isset($src['targets']))? ini_get('max_input_vars') : null;
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if ((! $src || $maxInputVars) && $rawPostData = file_get_contents('php://input')) {
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// for max_input_vars and supports IE XDomainRequest()
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$parts = explode('&', $rawPostData);
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if (! $src || $maxInputVars < count($parts)) {
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$src = array();
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foreach($parts as $part) {
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list($key, $value) = array_pad(explode('=', $part), 2, '');
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$key = rawurldecode($key);
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if (preg_match('/^(.+?)\[([^\[\]]*)\]$/', $key, $m)) {
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$key = $m[1];
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$idx = $m[2];
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if (!isset($src[$key])) {
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$src[$key] = array();
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}
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if ($idx) {
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$src[$key][$idx] = rawurldecode($value);
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} else {
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$src[$key][] = rawurldecode($value);
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}
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} else {
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$src[$key] = rawurldecode($value);
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}
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}
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$_POST = $this->input_filter($src);
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$_REQUEST = $this->input_filter(array_merge_recursive($src, $_REQUEST));
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}
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}
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if (isset($src['targets']) && $this->elFinder->maxTargets && count($src['targets']) > $this->elFinder->maxTargets) {
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$error = $this->elFinder->error(elFinder::ERROR_MAX_TARGTES);
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$this->output(array('error' => $this->elFinder->error(elFinder::ERROR_MAX_TARGTES)));
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}
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$cmd = isset($src['cmd']) ? $src['cmd'] : '';
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$args = array();
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if (!function_exists('json_encode')) {
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$error = $this->elFinder->error(elFinder::ERROR_CONF, elFinder::ERROR_CONF_NO_JSON);
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$this->output(array('error' => '{"error":["'.implode('","', $error).'"]}', 'raw' => true));
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}
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if (!$this->elFinder->loaded()) {
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$this->output(array('error' => $this->elFinder->error(elFinder::ERROR_CONF, elFinder::ERROR_CONF_NO_VOL), 'debug' => $this->elFinder->mountErrors));
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}
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// telepat_mode: on
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if (!$cmd && $isPost) {
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$this->output(array('error' => $this->elFinder->error(elFinder::ERROR_UPLOAD, elFinder::ERROR_UPLOAD_TOTAL_SIZE), 'header' => 'Content-Type: text/html'));
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}
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// telepat_mode: off
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if (!$this->elFinder->commandExists($cmd)) {
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$this->output(array('error' => $this->elFinder->error(elFinder::ERROR_UNKNOWN_CMD)));
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}
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// collect required arguments to exec command
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$hasFiles = false;
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foreach ($this->elFinder->commandArgsList($cmd) as $name => $req) {
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if ($name === 'FILES') {
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if (isset($_FILES)) {
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$hasFiles = true;
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} elseif ($req) {
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$this->output(array('error' => $this->elFinder->error(elFinder::ERROR_INV_PARAMS, $cmd)));
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}
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} else {
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$arg = isset($src[$name])? $src[$name] : '';
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if (!is_array($arg) && $req !== '') {
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$arg = trim($arg);
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}
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if ($req && $arg === '') {
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$this->output(array('error' => $this->elFinder->error(elFinder::ERROR_INV_PARAMS, $cmd)));
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}
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$args[$name] = $arg;
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}
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}
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$args['debug'] = isset($src['debug']) ? !!$src['debug'] : false;
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$args = $this->input_filter($args);
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if ($hasFiles) {
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$args['FILES'] = $_FILES;
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}
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$this->output($this->elFinder->exec($cmd, $args));
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}
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/**
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* Output json
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*
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* @param array data to output
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* @return void
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* @author Dmitry (dio) Levashov
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**/
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protected function output(array $data) {
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// unlock session data for multiple access
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$this->elFinder->getSession()->close();
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// client disconnect should abort
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ignore_user_abort(false);
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if ($this->header) {
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self::sendHeader($this->header);
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}
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if (isset($data['pointer'])) {
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// send optional header
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if (!empty($data['header'])) {
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self::sendHeader($data['header']);
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}
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// clear output buffer
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while(ob_get_level() && ob_end_clean()){}
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$toEnd = true;
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$fp = $data['pointer'];
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if (($this->reqMethod === 'GET' || $this->reqMethod === 'HEAD')
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&& elFinder::isSeekableStream($fp)
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&& (array_search('Accept-Ranges: none', headers_list()) === false)) {
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header('Accept-Ranges: bytes');
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$psize = null;
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if (!empty($_SERVER['HTTP_RANGE'])) {
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$size = $data['info']['size'];
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$start = 0;
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$end = $size - 1;
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if (preg_match('/bytes=(\d*)-(\d*)(,?)/i', $_SERVER['HTTP_RANGE'], $matches)) {
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if (empty($matches[3])) {
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if (empty($matches[1]) && $matches[1] !== '0') {
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$start = $size - $matches[2];
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} else {
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$start = intval($matches[1]);
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if (!empty($matches[2])) {
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$end = intval($matches[2]);
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if ($end >= $size) {
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$end = $size - 1;
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}
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$toEnd = ($end == ($size - 1));
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}
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}
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$psize = $end - $start + 1;
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header('HTTP/1.1 206 Partial Content');
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header('Content-Length: ' . $psize);
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header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
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fseek($fp, $start);
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}
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}
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}
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if (is_null($psize)){
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elFinder::rewind($fp);
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}
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} else {
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header('Accept-Ranges: none');
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if (isset($data['info']) && ! $data['info']['size']) {
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if (function_exists('header_remove')) {
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header_remove('Content-Length');
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} else {
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header('Content-Length:');
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}
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}
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}
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if ($reqMethod !== 'HEAD') {
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if ($toEnd) {
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fpassthru($fp);
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} else {
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$out = fopen('php://output', 'wb');
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stream_copy_to_stream($fp, $out, $psize);
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fclose($out);
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}
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}
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if (!empty($data['volume'])) {
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$data['volume']->close($data['pointer'], $data['info']['hash']);
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}
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exit();
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} else {
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self::outputJson($data);
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exit(0);
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}
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}
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/**
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* Remove null & stripslashes applies on "magic_quotes_gpc"
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*
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* @param mixed $args
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* @return mixed
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* @author Naoki Sawada
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*/
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protected function input_filter($args) {
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static $magic_quotes_gpc = NULL;
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if ($magic_quotes_gpc === NULL)
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$magic_quotes_gpc = (version_compare(PHP_VERSION, '5.4', '<') && get_magic_quotes_gpc());
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if (is_array($args)) {
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return array_map(array(& $this, 'input_filter'), $args);
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}
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$res = str_replace("\0", '', $args);
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$magic_quotes_gpc && ($res = stripslashes($res));
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return $res;
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}
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/**
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* Send HTTP header
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*
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* @param string|array $header optional header
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*/
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protected static function sendHeader($header = null) {
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if ($header) {
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if (is_array($header)) {
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foreach ($header as $h) {
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header($h);
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}
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} else {
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header($header);
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}
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}
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}
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/**
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* Output JSON
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*
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* @param array $data
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*/
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public static function outputJson($data) {
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// send header
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$header = isset($data['header']) ? $data['header'] : self::$contentType;
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self::sendHeader($header);
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unset($data['header']);
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if (!empty($data['raw']) && !empty($data['error'])) {
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$out = $data['error'];
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} else {
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if (isset($data['debug']) && isset($data['debug']['phpErrors'])) {
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$data['debug']['phpErrors'] = array_merge($data['debug']['phpErrors'], elFinder::$phpErrors);
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}
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$out = json_encode($data);
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}
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// clear output buffer
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while(ob_get_level() && ob_end_clean()){}
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header('Content-Length: ' . strlen($out));
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echo $out;
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flush();
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}
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}// END class
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