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<?php
/**
* @package Duplicator
* @copyright (c) 2022, Snap Creek LLC
*/
namespace Duplicator\Ajax\FileTransfer;
use DUP_PRO_Log;
use VendorDuplicator\WpOrg\Requests\Requests;
use VendorDuplicator\Amk\JsonSerialize\JsonSerialize;
use Duplicator\Libs\Snap\SnapIO;
use Duplicator\Libs\Snap\SnapLog;
use Duplicator\Libs\Snap\SnapURL;
use Duplicator\Libs\Snap\SnapUtil;
use Duplicator\Package\Import\PackageImporter;
use Duplicator\Utils\HTTP\DynamicChunkRequests;
use Exception;
class ImportUpload
{
const P2P_TIMEOUT = 15; // seconds, can be a float number
const MODE_UPLOAD_LOCAL = 'upload'; // Upload archive from local PC
const MODE_DOWNLOAD_REMOTE = 'remote'; // Download archive from remote URL
const MODE_UPLOADED = 'uploaded'; // Archive is already uploaded
const STATUS_CHUNKING = 'chunking';
const STATUS_COMPLETE = 'complete';
const INIT_REMOTE_URL_DATA_RETRIALS = 2;
/** @var string */
protected $mode = '';
/** @var string*/
protected $status = self::STATUS_CHUNKING;
/** @var bool */
protected $isImportable = false;
/** @var string */
protected $archivePath = '';
/** @var string */
protected $installerPageLink = '';
/** @var string */
protected $htmlDetails = '';
/** @var string */
protected $created = '';
/** @var string */
protected $invalidMessage = '';
/** @var int */
protected $archiveSize = -1;
/** @var false|DynamicChunkRequests */
protected $remoteChunk = false;
/**
* Class constructor
*
* @param string $mode upload mode
* @param string $archivePath archive path, use in mode uploaded
*/
public function __construct($mode, $archivePath = '')
{
switch ($mode) {
case self::MODE_UPLOAD_LOCAL:
case self::MODE_DOWNLOAD_REMOTE:
break;
case self::MODE_UPLOADED:
if (strlen($archivePath) == 0 || !is_file($archivePath)) {
throw new Exception('Invalid archive');
}
$this->archivePath = $archivePath;
break;
default:
throw new Exception('Invalid transfer mode');
}
$this->mode = $mode;
add_filter('duplicator_pro_remote_download_data', array(RemoteDownloadCustom::class, 'dropboxRemoteUrlFilter'));
add_filter('duplicator_pro_remote_download_data', array(RemoteDownloadCustom::class, 'gDriveRemoteUrlFilter'));
add_filter('duplicator_pro_remote_download_data', array(RemoteDownloadCustom::class, 'oneDriveRemoteUrlFilter'));
}
/**
* Exec upload and return result
*
* @return mixed[]
*/
public function exec()
{
if (!file_exists(DUPLICATOR_PRO_PATH_IMPORTS)) {
SnapIO::mkdir(DUPLICATOR_PRO_PATH_IMPORTS, 0755, true);
}
switch ($this->mode) {
case self::MODE_UPLOAD_LOCAL:
$this->uploadLocal();
break;
case self::MODE_DOWNLOAD_REMOTE:
$this->remoteDownload();
break;
case self::MODE_UPLOADED:
$this->setCompleteData();
break;
}
return JsonSerialize::serializeToData($this, JsonSerialize::JSON_SKIP_CLASS_NAME);
}
/**
* Upload in local mode
*
* @return void
*/
protected function uploadLocal()
{
$archiveName = isset($_FILES["file"]["name"]) ? SnapUtil::sanitizeNSCharsNewlineTabs($_FILES["file"]["name"]) : null;
if (!preg_match('/^.*\.(zip|daf)$/', $archiveName)) {
throw new Exception(__("Invalid archive file name. Please use the valid archive file!", 'duplicator-pro'));
}
$archiveNameTemp = isset($_FILES["file"]["tmp_name"]) ? SnapUtil::sanitizeNSCharsNewlineTabs($_FILES["file"]["tmp_name"]) : null;
$currentChunk = filter_input(INPUT_POST, 'chunk', FILTER_VALIDATE_INT, array('options' => array('default' => false)));
$numChunks = filter_input(INPUT_POST, 'chunks', FILTER_VALIDATE_INT, array('options' => array('default' => false)));
$this->archivePath = DUPLICATOR_PRO_PATH_IMPORTS . '/' . $archiveName;
if ($numChunks !== false) {
//CHUNK MODE
$archivePart = $this->getArchivePart();
// Clean last upload part leaved as it is (The situation in which user navigate to another url while uploading archive file path)
if ($currentChunk === 0 && file_exists($archivePart)) {
@unlink($archivePart);
}
SnapIO::appendFileToFile($archiveNameTemp, $archivePart);
if ($currentChunk == ($numChunks - 1)) {
if (SnapIO::rename($archivePart, $this->archivePath, true) === false) {
throw new Exception('Can\'t rename file part to file');
}
$this->setCompleteData();
} else {
$this->status = self::STATUS_CHUNKING;
}
} else {
// DIRECT MODE
if (move_uploaded_file($archiveNameTemp, $this->archivePath) === false) {
throw new Exception(esc_html__('Can\'t rename file part to file', 'duplicator-pro'));
}
$this->setCompleteData();
}
}
/**
* Download archive from remote URL
*
* @return void
*/
protected function remoteDownload()
{
$startingRemoteURL = filter_input(INPUT_POST, 'url', FILTER_VALIDATE_URL, array('options' => array('default' => false)));
if ($startingRemoteURL == false) {
throw new Exception('Remote URL must be a valid URL');
}
$this->remoteChunk = self::getRestoreChunkDownload();
if (!($this->remoteChunk instanceof DynamicChunkRequests)) {
$this->remoteChunk = new DynamicChunkRequests();
$this->remoteChunk->setExtraData('retrials', 0);
$this->remoteChunk->setExtraData('maxRetrials', 0); // Default value 0, but particular storage can change it
$this->remoteChunk->setExtraData('startedDownload', false);
}
if (!$this->remoteChunk->getExtraData('startedDownload')) {
$downloadData = array();
try {
$downloadData = apply_filters('duplicator_pro_remote_download_data', [
'url' => $startingRemoteURL,
'archiveName' => basename(SnapURL::parseUrl($startingRemoteURL, PHP_URL_PATH)),
'chunkTime' => DynamicChunkRequests::DEFAULT_CHUNK_TIME,
'maxRetrials' => 0,
]);
} catch (Exception $e) {
$retrials = $this->remoteChunk->getExtraData('retrials');
if ($retrials <= self::INIT_REMOTE_URL_DATA_RETRIALS) {
$this->remoteChunk->setExtraData('retrials', $retrials + 1);
return;
}
throw $e;
}
if (!preg_match('/^.*\.(zip|daf)$/', $downloadData['archiveName'])) {
throw new Exception(__("Invalid archive file name. Please use the valid archive file!", 'duplicator-pro'));
}
$this->remoteChunk->setDownloadUrl($downloadData['url']);
$this->remoteChunk->setChunkTime($downloadData['chunkTime']);
$this->remoteChunk->setExtraData('archiveName', $downloadData['archiveName']);
$this->remoteChunk->setExtraData('startingRemoteURL', $startingRemoteURL);
$this->remoteChunk->setExtraData('retrials', 0); // Reset retrials
$this->remoteChunk->setExtraData('maxRetrials', $downloadData['maxRetrials']);
$this->remoteChunk->setExtraData('startedDownload', true);
$this->archivePath = DUPLICATOR_PRO_PATH_IMPORTS . '/' . $downloadData['archiveName'];
$archivePart = $this->getArchivePart();
if (file_exists($archivePart)) {
unlink($archivePart);
}
} else {
$this->archivePath = DUPLICATOR_PRO_PATH_IMPORTS . '/' . $this->remoteChunk->getExtraData('archiveName');
$archivePart = $this->getArchivePart();
if (!file_exists($archivePart)) {
throw new Exception('Can\t resume the download, archive part file don\'t exists');
}
if ($this->remoteChunk->getExtraData('startingRemoteURL') !== $startingRemoteURL) {
throw new Exception('Input params not valid');
}
}
$startTime = microtime(true);
do {
$tmpFile = tempnam(DUPLICATOR_PRO_PATH_IMPORTS, 'tmp_p2p_part_');
$options = array();
if (session_id() == "") {
session_start();
}
if (isset($_SESSION["duplicator_pro_import_from_link_cookies"])) {
$options['cookies'] = $_SESSION["duplicator_pro_import_from_link_cookies"];
}
$options['filename'] = $tmpFile;
$options['verify'] = false;
$options['verifyname'] = false;
$response = $this->remoteChunk->request(
array(),
array(),
Requests::GET,
$options,
false
);
if ($response->success == false) {
$retrials = $this->remoteChunk->getExtraData('retrials');
$maxRetrials = $this->remoteChunk->getExtraData('maxRetrials');
if ($retrials <= $maxRetrials) {
$this->remoteChunk->setExtraData('retrials', $retrials + 1);
break;
} else {
throw new Exception("Remote URL request on " . $this->remoteChunk->getExtraData('startingRemoteURL') . " failed");
}
}
SnapIO::appendFileToFile($tmpFile, $archivePart);
// Preserve cookies for use in the next request
$_SESSION["duplicator_pro_import_from_link_cookies"] = property_exists($response, 'cookies') ? $response->cookies : null;
$this->remoteChunk->setExtraData('retrials', 0); // Reset retrials
$deltaTime = microtime(true) - $startTime;
} while (!$this->remoteChunk->isComplete() && $deltaTime < self::P2P_TIMEOUT);
if ($this->remoteChunk->isComplete()) {
if (SnapIO::rename($archivePart, $this->archivePath, true) === false) {
throw new Exception('Can\'t rename file part to file');
}
$this->setCompleteData();
} else {
$this->status = self::STATUS_CHUNKING;
}
}
/**
* Return restore chunk download object
*
* @return false|DynamicChunkRequests false if restore isn't set
*/
protected static function getRestoreChunkDownload()
{
try {
$restoreDownload = (isset($_POST['restoreDownload']) ? SnapUtil::sanitizeNSCharsNewline($_POST['restoreDownload']) : '');
$result = false;
if (strlen($restoreDownload) === 0) {
return $result;
}
$restoreDownload = stripslashes($restoreDownload);
$result = JsonSerialize::unserializeToObj($restoreDownload, DynamicChunkRequests::class);
} catch (Exception $e) {
$result = false;
}
return $result;
}
/**
* Get archvie part full path
*
* @return string
*/
protected function getArchivePart()
{
return $this->archivePath . '.part';
}
/**
* Set completa package upload data
*
* @return void
*/
public function setCompleteData()
{
$this->status = self::STATUS_COMPLETE;
$this->remoteChunk = false;
try {
$importObj = new PackageImporter($this->archivePath);
$importObj->cleanFolder();
$this->isImportable = $importObj->isImportable();
$this->installerPageLink = $importObj->getInstallerPageLink();
$this->htmlDetails = $importObj->getHtmlDetails(false);
$this->created = $importObj->getCreated();
if (($this->archiveSize = filesize($this->archivePath)) === false) {
$this->archiveSize = -1;
}
} catch (Exception $e) {
$this->isImportable = false;
$this->installerPageLink = '';
$this->htmlDetails = sprintf(esc_html__('Problem on import, message: %s', 'duplicator-pro'), $e->getMessage());
$this->created = '';
$this->invalidMessage = $e->getMessage();
DUP_PRO_Log::trace("Set complete data rerror\n" . SnapLog::getTextException($e));
}
}
}