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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Callbacks
*
* @package customfield_textarea
* @copyright 2018 Marina Glancy
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die;
/**
* Serve the files from the customfield_textarea file areas
*
* @param stdClass $course the course object
* @param stdClass $cm the course module object
* @param context $context the context
* @param string $filearea the name of the file area
* @param array $args extra arguments (itemid, path)
* @param bool $forcedownload whether or not force download
* @param array $options additional options affecting the file serving
* @return bool false if the file not found, just send the file otherwise and do not return
*/
function customfield_textarea_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options=array()) {
global $DB;
$itemid = array_shift($args);
if ($filearea === 'value') {
// Value of the data, itemid = id in data table.
$datarecord = $DB->get_record(\core_customfield\data::TABLE, ['id' => $itemid], '*', MUST_EXIST);
$field = \core_customfield\field_controller::create($datarecord->fieldid);
$data = \core_customfield\data_controller::create(0, $datarecord, $field);
$handler = $field->get_handler();
if ($field->get('type') !== 'textarea' || !$handler->can_view($field, $data->get('instanceid'))
|| $data->get_context()->id != $context->id) {
send_file_not_found();
}
} else if ($filearea === 'defaultvalue') {
// Default value of the field, itemid = id in the field table.
$field = \core_customfield\field_controller::create($itemid);
$handler = $field->get_handler();
if ($field->get('type') !== 'textarea' || $handler->get_configuration_context()->id != $context->id) {
send_file_not_found();
}
} else {
send_file_not_found();
}
$filename = array_pop($args); // The last item in the $args array.
$filepath = '/' . ($args ? implode('/', $args) . '/' : '');
// Retrieve the file from the Files API.
$fs = get_file_storage();
$file = $fs->get_file($context->id, 'customfield_textarea', $filearea, $itemid, $filepath, $filename);
if (!$file) {
send_file_not_found();
}
// We can now send the file back to the browser - in this case with a cache lifetime of 1 day and no filtering.
send_file($file, 86400, 0, $forcedownload, $options);
}