class.ilFSStorageExercise.php

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<?php
/*
    +-----------------------------------------------------------------------------+
    | ILIAS open source                                                           |
    +-----------------------------------------------------------------------------+
    | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
    |                                                                             |
    | This program is free software; you can redistribute it and/or               |
    | modify it under the terms of the GNU General Public License                 |
    | as published by the Free Software Foundation; either version 2              |
    | of the License, or (at your option) any later version.                      |
    |                                                                             |
    | This program is distributed in the hope that it will be useful,             |
    | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
    | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
    | GNU General Public License for more details.                                |
    |                                                                             |
    | You should have received a copy of the GNU General Public License           |
    | along with this program; if not, write to the Free Software                 |
    | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
    +-----------------------------------------------------------------------------+
*/

include_once('Services/FileSystem/classes/class.ilFileSystemStorage.php');
class ilFSStorageExercise extends ilFileSystemStorage
{
    public function __construct($a_container_id = 0, $a_ass_id = 0)
    {
        $this->ass_id = $a_ass_id;
        parent::__construct(self::STORAGE_DATA, true, $a_container_id);
    }
    
    public function init()
    {
        if (parent::init()) {
            if ($this->ass_id > 0) {
                $this->submission_path = $this->path . "/subm_" . $this->ass_id;
                $this->tmp_path = $this->path . "/tmp_" . $this->ass_id;
                $this->feedb_path = $this->path . "/feedb_" . $this->ass_id;
                $this->multi_feedback_upload_path = $this->path . "/mfb_up_" . $this->ass_id;
                $this->peer_review_upload_path = $this->path . "/peer_up_" . $this->ass_id;
                $this->path .= "/ass_" . $this->ass_id;
            }
        } else {
            return false;
        }
        return true;
    }
    
    
    protected function getPathPostfix()
    {
        return 'exc';
    }
    
    protected function getPathPrefix()
    {
        return 'ilExercise';
    }
    
    public function getAbsoluteSubmissionPath()
    {
        return $this->submission_path;
    }
    
    public function getTempPath()
    {
        return $this->tmp_path;
    }

    public function getFeedbackPath($a_user_id)
    {
        $path = $this->feedb_path . "/" . $a_user_id;
        if (!file_exists($path)) {
            ilUtil::makeDirParents($path);
        }
        return $path;
    }
    
    public function getGlobalFeedbackPath()
    {
        $path = $this->feedb_path . "/0";
        if (!file_exists($path)) {
            ilUtil::makeDirParents($path);
        }
        return $path;
    }

    public function getMultiFeedbackUploadPath($a_user_id)
    {
        $path = $this->multi_feedback_upload_path . "/" . $a_user_id;
        if (!file_exists($path)) {
            ilUtil::makeDirParents($path);
        }
        return $path;
    }
    
    public function getPeerReviewUploadPath($a_peer_id, $a_giver_id, $a_crit_id)
    {
        $path = $this->peer_review_upload_path . "/" . $a_peer_id . "/" . $a_giver_id . "/";

        if ((int) $a_crit_id) {
            $path .= (int) $a_crit_id . "/";
        }
        if (!file_exists($path)) {
            ilUtil::makeDirParents($path);
        }
        return $path;
    }
        
    public function create()
    {
        parent::create();
        if (!file_exists($this->submission_path)) {
            ilUtil::makeDirParents($this->submission_path);
        }
        if (!file_exists($this->tmp_path)) {
            ilUtil::makeDirParents($this->tmp_path);
        }
        if (!file_exists($this->feedb_path)) {
            ilUtil::makeDirParents($this->feedb_path);
        }
        return true;
    }

    public function getFiles()
    {
        $files = array();
        if (!is_dir($this->path)) {
            return $files;
        }

        $dp = opendir($this->path);
        while ($file = readdir($dp)) {
            if (!is_dir($this->path . '/' . $file)) {
                $files[] = array(
                    'name' => $file,
                    'size' => filesize($this->path . '/' . $file),
                    'ctime' => filectime($this->path . '/' . $file),
                    'fullpath' => $this->path . '/' . $file);
            }
        }
        closedir($dp);
        $files = ilUtil::sortArray($files, "name", "asc");
        return $files;
    }
    
    
    
    public function uploadFile($a_http_post_file, $user_id, $is_unziped = false)
    {
        $this->create();
        // TODO:
        // CHECK UPLOAD LIMIT


        //
        $result = false;
        if (isset($a_http_post_file) && $a_http_post_file['size']) {
            $filename = $a_http_post_file['name'];

            include_once("./Services/Utilities/classes/class.ilFileUtils.php");
            $filename = ilFileUtils::getValidFilename($filename);

            // replace whitespaces with underscores
            $filename = preg_replace("/\s/", "_", $filename);
            // remove all special characters
            $filename = preg_replace("/[^_a-zA-Z0-9\.]/", "", $filename);

            if (!is_dir($savepath = $this->getAbsoluteSubmissionPath())) {
                ilUtil::makeDir($savepath);
            }
            $savepath .= '/' . $user_id;
            if (!is_dir($savepath)) {
                ilUtil::makeDir($savepath);
            }

            // CHECK IF FILE PATH EXISTS
            if (!is_dir($savepath)) {
                ilUtil::makeDir($savepath);
            }
            $now = getdate();
            $prefix = sprintf(
                "%04d%02d%02d%02d%02d%02d",
                $now["year"],
                $now["mon"],
                $now["mday"],
                $now["hours"],
                $now["minutes"],
                $now["seconds"]
            );

            if (!$is_unziped) {
                ilUtil::moveUploadedFile(
                    $a_http_post_file["tmp_name"],
                    $prefix . "_" . $filename,
                    $savepath . "/" . $prefix . "_" . $filename
                );
            } else {
                rename(
                    $a_http_post_file['tmp_name'],
                    $savepath . "/" . $prefix . "_" . $filename
                );
            }

            require_once "./Services/MediaObjects/classes/class.ilObjMediaObject.php";
            if (is_file($savepath . "/" . $prefix . "_" . $filename)) {
                $result = array(
                    "filename" => $prefix . "_" . $filename,
                    "fullname" => $savepath . "/" . $prefix . "_" . $filename,
                    "mimetype" => ilObjMediaObject::getMimeType($savepath . "/" . $prefix . "_" . $filename)
                );
            }
        }
        return $result;
    }

    public function getFeedbackFiles($a_user_id)
    {
        $files = array();
    
        $dir = $this->getFeedbackPath($a_user_id);
        if (@is_dir($dir)) {
            $dp = opendir($dir);
            while ($file = readdir($dp)) {
                if (!is_dir($this->path . '/' . $file) && substr($file, 0, 1) != ".") {
                    $files[] = $file;
                }
            }
        }
        
        return $files;
    }
    
    public function countFeedbackFiles($a_user_id)
    {
        $fbf = $this->getFeedbackFiles($a_user_id);
        return count($fbf);
    }
    
    public function getAssignmentFilePath($a_file)
    {
        return $this->getAbsolutePath() . "/" . $a_file;
    }
    
    public function getFeedbackFilePath($a_user_id, $a_file)
    {
        $dir = $this->getFeedbackPath($a_user_id);
        return $dir . "/" . $a_file;
    }

    public function uploadAssignmentFiles($a_files)
    {
        if (is_array($a_files["name"])) {
            foreach ($a_files["name"] as $k => $name) {
                if ($name != "") {
                    $type = $a_files["type"][$k];
                    $tmp_name = $a_files["tmp_name"][$k];
                    $size = $a_files["size"][$k];
                    ilUtil::moveUploadedFile(
                        $tmp_name,
                        basename($name),
                        $this->path . DIRECTORY_SEPARATOR . basename($name),
                        false
                    );
                }
            }
        }
    }
}