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89 lines
3.0 KiB
89 lines
3.0 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This file contains the moodle hooks for the submission file plugin
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*
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* @package assignsubmission_file
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* @copyright 2012 NetSpot {@link http://www.netspot.com.au}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Serves assignment submissions and other files.
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*
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* @param mixed $course course or id of the course
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* @param mixed $cm course module or id of the course module
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* @param context $context
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* @param string $filearea
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* @param array $args
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* @param bool $forcedownload
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* @param array $options - List of options affecting file serving.
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* @return bool false if file not found, does not return if found - just send the file
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*/
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function assignsubmission_file_pluginfile($course,
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$cm,
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context $context,
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$filearea,
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$args,
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$forcedownload,
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array $options=array()) {
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global $DB, $CFG;
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if ($context->contextlevel != CONTEXT_MODULE) {
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return false;
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}
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require_login($course, false, $cm);
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$itemid = (int)array_shift($args);
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$record = $DB->get_record('assign_submission',
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array('id'=>$itemid),
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'userid, assignment, groupid',
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MUST_EXIST);
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$userid = $record->userid;
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$groupid = $record->groupid;
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require_once($CFG->dirroot . '/mod/assign/locallib.php');
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$assign = new assign($context, $cm, $course);
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if ($assign->get_instance()->id != $record->assignment) {
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return false;
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}
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if ($assign->get_instance()->teamsubmission &&
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!$assign->can_view_group_submission($groupid)) {
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return false;
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}
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if (!$assign->get_instance()->teamsubmission &&
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!$assign->can_view_submission($userid)) {
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return false;
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}
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$relativepath = implode('/', $args);
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$fullpath = "/{$context->id}/assignsubmission_file/$filearea/$itemid/$relativepath";
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$fs = get_file_storage();
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if (!($file = $fs->get_file_by_hash(sha1($fullpath))) || $file->is_directory()) {
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return false;
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}
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// Download MUST be forced - security!
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send_stored_file($file, 0, 0, true, $options);
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}
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