function assignsubmission_onenote_pluginfile()

in lib.php [37:79]

• 31 lines of code
• 9 McCabe index (conditional complexity)

function assignsubmission_onenote_pluginfile($course, $cm, context $context, $filearea, $args, $forcedownload) {
    global $DB, $CFG;

    if ($context->contextlevel != CONTEXT_MODULE) {
        return false;
    }

    require_login($course, false, $cm);
    $itemid = (int)array_shift($args);
    $record = $DB->get_record('assign_submission', array('id' => $itemid), 'userid, assignment, groupid', MUST_EXIST);
    $userid = $record->userid;
    $groupid = $record->groupid;

    require_once($CFG->dirroot . '/mod/assign/locallib.php');

    $assign = new assign($context, $cm, $course);

    if ($assign->get_instance()->id != $record->assignment) {
        return false;
    }

    if ($assign->get_instance()->teamsubmission &&
        !$assign->can_view_group_submission($groupid)) {
        return false;
    }

    if (!$assign->get_instance()->teamsubmission &&
        !$assign->can_view_submission($userid)) {
        return false;
    }

    $relativepath = implode('/', $args);

    $fullpath = "/{$context->id}/assignsubmission_onenote/$filearea/$itemid/$relativepath";

    $fs = get_file_storage();
    if (!($file = $fs->get_file_by_hash(sha1($fullpath))) || $file->is_directory()) {
        return false;
    }

    // Download MUST be forced - security!
    send_stored_file($file, 0, 0, true);
}