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\SQLite;

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

class Queue extends BaseQueue
{

    /**
     * Executes query
     * @param string $sql
     * @return SQLiteResult
     */
    function query($sql)
    {
        return $this->getQueuesModel()->query($sql);
    }


    /**
     * Adds file to queue
     * @param FileUpload $file
     */
    function addFile(FileUpload $file)
    {
        $file->move($this->getUniqueFilePath());
        $this->query('INSERT INTO files (queueID, created, data, name) VALUES ("' . sqlite_escape_string($this->getQueueID()) . '",' . time() . ',\'' . sqlite_escape_string(serialize($file)) . '\', \'' . sqlite_escape_string($file->getName()) . '\')');
    }


    // TODO: rename!!!
    function addFileManually($name, $chunk, $chunks)
    {
        $this->query('INSERT INTO files (queueID, created, name, chunk, chunks) VALUES ("' . sqlite_escape_string($this->getQueueID()) . '",' . time() . ',\'' . sqlite_escape_string($name) . '\', \'' . sqlite_escape_string($chunk) . '\', \'' . sqlite_escape_string($chunks) . '\')');
    }


    function updateFile($name, $chunk, FileUpload $file = null)
    {
        $this->query("BEGIN TRANSACTION");
        $where = 'queueID = \'' . sqlite_escape_string($this->getQueueID()) . '\' AND name = \'' . sqlite_escape_string($name) . '\'';
        $this->query('UPDATE files SET chunk = \'' . sqlite_escape_string($chunk) . '\' WHERE ' . $where);
        if ($file) {
            $this->query('UPDATE files SET data = \'' . sqlite_escape_string(serialize($file)) . '\' WHERE ' . $where);
        }
        $this->query("END TRANSACTION");
    }


    /**
     * 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 ($this->query("SELECT * FROM files WHERE queueID = '" . sqlite_escape_string($this->getQueueID()) . "'")->fetchAll() AS $row) {
            $f = unserialize($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 file only if user leaved file in temp directory
                @unlink($file->getTemporaryFile()); // intentionally @
            }
        }

        $this->query("DELETE FROM files  WHERE queueID = '" . sqlite_escape_string($this->getQueueID()) . "'");
    }


    /**
     * When was queue last accessed?
     * @return int timestamp
     */
    function getLastAccess()
    {
        $lastAccess = (int) $this->query("SELECT created
            FROM files
            WHERE queueID = '" . sqlite_escape_string($this->getQueueID()) . "'
            ORDER BY created DESC")->fetchSingle();
        return $lastAccess;
    }


}