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<?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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* Callbacks
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*
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* @package customfield_textarea
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* @copyright 2018 Marina Glancy
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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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* Serve the files from the customfield_textarea file areas
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*
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* @param stdClass $course the course object
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* @param stdClass $cm the course module object
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* @param context $context the context
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* @param string $filearea the name of the file area
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* @param array $args extra arguments (itemid, path)
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* @param bool $forcedownload whether or not force download
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* @param array $options additional options affecting the file serving
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* @return bool false if the file not found, just send the file otherwise and do not return
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*/
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function customfield_textarea_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options=array()) {
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global $DB;
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$itemid = array_shift($args);
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if ($filearea === 'value') {
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// Value of the data, itemid = id in data table.
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$datarecord = $DB->get_record(\core_customfield\data::TABLE, ['id' => $itemid], '*', MUST_EXIST);
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$field = \core_customfield\field_controller::create($datarecord->fieldid);
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$data = \core_customfield\data_controller::create(0, $datarecord, $field);
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$handler = $field->get_handler();
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if ($field->get('type') !== 'textarea' || !$handler->can_view($field, $data->get('instanceid'))
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|| $data->get_context()->id != $context->id) {
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send_file_not_found();
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}
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} else if ($filearea === 'defaultvalue') {
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// Default value of the field, itemid = id in the field table.
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$field = \core_customfield\field_controller::create($itemid);
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$handler = $field->get_handler();
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if ($field->get('type') !== 'textarea' || $handler->get_configuration_context()->id != $context->id) {
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send_file_not_found();
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}
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} else {
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send_file_not_found();
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}
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$filename = array_pop($args); // The last item in the $args array.
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$filepath = '/' . ($args ? implode('/', $args) . '/' : '');
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// Retrieve the file from the Files API.
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$fs = get_file_storage();
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$file = $fs->get_file($context->id, 'customfield_textarea', $filearea, $itemid, $filepath, $filename);
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if (!$file) {
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send_file_not_found();
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}
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// We can now send the file back to the browser - in this case with a cache lifetime of 1 day and no filtering.
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send_stored_file($file, DAYSECS, 0, $forcedownload, $options);
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}
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