jkuchar/MultipleFileUpload

<?php

/**
 * This file is part of the MultipleFileUpload (https://github.com/jkuchar/MultipleFileUpload/)
 *
 * Copyright (c) 2013 Jan Kuchař (http://www.jankuchar.cz)
 *
 * For the full copyright and license information, please view
 * the file license.txt that was distributed with this source code.
 */

namespace MultipleFileUpload\Model\NetteDatabase;

use MultipleFileUpload\Model\BaseQueue,
    Nette\Environment,
    Nette\Http\FileUpload,
    Nette\InvalidStateException;

/**
 * Multiple File Uploader driver for Nette\Database
 *
 * @author  Zdeněk Jurka
 * @license New BSD License
 */
class Queue extends BaseQueue
{

    /**
     * Adds file to queue
     * @param FileUpload $file
     */
    function addFile(FileUpload $file)
    {
        $file->move($this->getUniqueFilePath());
        $data = array(
            'queueID' => $this->getQueueID(),
            'created' => time(),
            'data' => base64_encode(serialize($file)), // workaround: http://forum.dibiphp.com/cs/1003-pgsql-a-znak-x00-oriznuti-zbytku-vstupu
            'name' => $file->getName()
        );
        $this->getConnection()->table($this->getFilesTable())->insert($data);
    }


    /**
     * @return \Nette\Database\Context 
     */
    protected function getConnection(){
        return $this->getQueuesModel()->getConnection();
    }
    
    protected function getFilesTable(){
        return $this->getQueuesModel()->getFilesTable();
    }
    
    function addFileManually($name, $chunk, $chunks)
    {
        $data = array(
            'queueID' => $this->getQueueID(),
            'created' => time(),
            'name' => $name,
            'chunk' => $chunk,
            'chunks' => $chunks
        );
        $this->getQueuesModel()->getConnection()->table($this->getFilesTable())->insert($data);
    }


    function updateFile($name, $chunk, FileUpload $file = null)
    {
        $this->getConnection()->beginTransaction();
        $selection = $this->getConnection()->table($this->getFilesTable())->where('queueID', $this->getQueueID())->where('name', $name);

        $data = array("chunk" => $chunk);
        if ($file){
            // workaround: http://forum.dibiphp.com/cs/1003-pgsql-a-znak-x00-oriznuti-zbytku-vstupu
            $data["data"] =  base64_encode(serialize($file));
        }
        foreach ($selection as $row){
            $row->update($data);
        }
        $this->getConnection()->commit();
    }


    /**
     * Gets upload directory path
     * @return string
     */
    function getUploadedFilesTemporaryPath()
    {
        if (!Queues::$uploadsTempDir) {
            Queues::$uploadsTempDir = Environment::expand("%tempDir%" . DIRECTORY_SEPARATOR . "uploads-MFU");
        }

        if (!file_exists(Queues::$uploadsTempDir)) {
            mkdir(Queues::$uploadsTempDir, 0777, true);
        }

        if (!is_writable(Queues::$uploadsTempDir)) {
            Queues::$uploadsTempDir = Environment::expand("%tempDir%");
        }

        if (!is_writable(Queues::$uploadsTempDir)) {
            throw new InvalidStateException("Directory for temp files is not writable!");
        }

        return Queues::$uploadsTempDir;
    }


    /**
     * Gets files
     * @return FileUpload[]
     */
    function getFiles()
    {
        $files = array();

        foreach ($this->getConnection()->table($this->getFilesTable())->where('queueID', $this->getQueueID()) as $row) {
            $f = unserialize(base64_decode($row["data"]));
            if (!$f instanceof FileUpload)
                continue;
            $files[] = $f;
        }

        return $files;
    }


    function delete()
    {
        $dir = realpath($this->getUploadedFilesTemporaryPath());
        foreach ($this->getFiles() AS $file) {
            $fileDir = dirname($file->getTemporaryFile());
            if (realpath($fileDir) == $dir and file_exists($file->getTemporaryFile())) {
                // Delete only files left in temp directory [not moved by user]
                @unlink($file->getTemporaryFile()); // intentionally @
            }
        }
        $this->getConnection()->table($this->getFilesTable())->where('queueID', $this->getQueueID())->delete();
    }


    /**
     * When was queue last accessed?
     * @return int timestamp
     */
    function getLastAccess()
    {
        return $this->getConnection()->table($this->getFilesTable())->select('created')->where('queueID', $this->getQueueID())->order('created DESC')->fetch()->created;
    }


}