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Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?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/>.

/**
 * This plugin is used to access coursefiles repository
 *
 * @since Moodle 2.0
 * @package    repository_coursefiles
 * @copyright  2010 Dongsheng Cai {@link http://dongsheng.org}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
require_once($CFG->dirroot . '/repository/lib.php');

/**
 * repository_coursefiles class is used to browse course files
 *
 * @since Moodle 2.0
 * @package    repository_coursefiles
 * @copyright  2010 Dongsheng Cai {@link http://dongsheng.org}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class repository_coursefiles extends repository {

    /**
     * coursefiles plugin doesn't require login, so list all files
     *
     * @return mixed
     */
    public function print_login() {
        return $this->get_listing();
    }

    /**
     * Get file listing
     *
     * @param string $encodedpath
     * @return mixed
     */
    public function get_listing($encodedpath = '', $page = '') {
        global $CFG, $USER, $OUTPUT;
        $ret = array();
        $ret['dynload'] = true;
        $ret['nosearch'] = true;
        $ret['nologin'] = true;
        $list = array();
        $component = 'course';
        $filearea  = 'legacy';
        $itemid = 0;

        $browser = get_file_browser();

        if (!empty($encodedpath)) {
            $params = json_decode(base64_decode($encodedpath), true);
            if (is_array($params)) {
                $filepath  = is_null($params['filepath']) ? NULL : clean_param($params['filepath'], PARAM_PATH);
                $filename  = is_null($params['filename']) ? NULL : clean_param($params['filename'], PARAM_FILE);
                $context = context::instance_by_id(clean_param($params['contextid'], PARAM_INT));
            }
        } else {
            $filename = null;
            $filepath = null;
            list($context, $course, $cm) = get_context_info_array($this->context->id);
            $courseid = is_object($course) ? $course->id : SITEID;
            $context = context_course::instance($courseid);
        }

        if ($fileinfo = $browser->get_file_info($context, $component, $filearea, $itemid, $filepath, $filename)) {
            // build path navigation
            $pathnodes = array();
            $encodedpath = base64_encode(json_encode($fileinfo->get_params()));
            $pathnodes[] = array('name'=>$fileinfo->get_visible_name(), 'path'=>$encodedpath);
            $level = $fileinfo->get_parent();
            while ($level) {
                $params = $level->get_params();
                $encodedpath = base64_encode(json_encode($params));
                if ($params['contextid'] != $context->id) {
                    break;
                }
                $pathnodes[] = array('name'=>$level->get_visible_name(), 'path'=>$encodedpath);
                $level = $level->get_parent();
            }
            if (!empty($pathnodes) && is_array($pathnodes)) {
                $pathnodes = array_reverse($pathnodes);
                $ret['path'] = $pathnodes;
            }
            // build file tree
            $children = $fileinfo->get_children();
            foreach ($children as $child) {
                if ($child->is_directory()) {
                    $params = $child->get_params();
                    $subdir_children = $child->get_children();
                    $encodedpath = base64_encode(json_encode($params));
                    $node = array(
                        'title' => $child->get_visible_name(),
                        'datemodified' => $child->get_timemodified(),
                        'datecreated' => $child->get_timecreated(),
                        'path' => $encodedpath,
                        'children'=>array(),
< 'thumbnail' => $OUTPUT->image_url(file_folder_icon(90))->out(false)
> 'thumbnail' => $OUTPUT->image_url(file_folder_icon())->out(false)
); $list[] = $node; } else { $encodedpath = base64_encode(json_encode($child->get_params())); $node = array( 'title' => $child->get_visible_name(), 'size' => $child->get_filesize(), 'author' => $child->get_author(), 'license' => $child->get_license(), 'datemodified' => $child->get_timemodified(), 'datecreated' => $child->get_timecreated(), 'source'=> $encodedpath, 'isref' => $child->is_external_file(),
< 'thumbnail' => $OUTPUT->image_url(file_file_icon($child, 90))->out(false)
> 'thumbnail' => $OUTPUT->image_url(file_file_icon($child))->out(false)
); if ($child->get_status() == 666) { $node['originalmissing'] = true; } if ($imageinfo = $child->get_imageinfo()) { $fileurl = new moodle_url($child->get_url()); $node['realthumbnail'] = $fileurl->out(false, array('preview' => 'thumb', 'oid' => $child->get_timemodified())); $node['realicon'] = $fileurl->out(false, array('preview' => 'tinyicon', 'oid' => $child->get_timemodified())); $node['image_width'] = $imageinfo['width']; $node['image_height'] = $imageinfo['height']; } $list[] = $node; } } } else { $list = array(); } $ret['list'] = array_filter($list, array($this, 'filter')); return $ret; } public function get_link($encoded) { $info = array(); $browser = get_file_browser(); // the final file $params = unserialize(base64_decode($encoded)); $contextid = clean_param($params['contextid'], PARAM_INT); $fileitemid = clean_param($params['itemid'], PARAM_INT); $filename = clean_param($params['filename'], PARAM_FILE); $filepath = clean_param($params['filepath'], PARAM_PATH); $filearea = clean_param($params['filearea'], PARAM_AREA); $component = clean_param($params['component'], PARAM_COMPONENT); $context = context::instance_by_id($contextid); $file_info = $browser->get_file_info($context, $component, $filearea, $fileitemid, $filepath, $filename); return $file_info->get_url(); } /** * Return is the instance is visible * (is the type visible ? is the context enable ?) * * @return boolean */ public function is_visible() { global $COURSE; //TODO: this is deprecated (skodak) if ($COURSE->legacyfiles != 2) { // do not show repo if legacy files disabled in this course... return false; } return parent::is_visible(); } /** * Return the repository name. * * @return string */ public function get_name() { $context = $this->context->get_course_context(false); if ($context) { return get_string('courselegacyfilesofcourse', 'moodle', $context->get_context_name(false, true)); } else { return get_string('courselegacyfiles'); } } public function supported_returntypes() { return (FILE_INTERNAL | FILE_REFERENCE); } public static function get_type_option_names() { return array(); } /** * Does this repository used to browse moodle files? * * @return boolean */ public function has_moodle_files() { return true; } /** * Is this repository accessing private data? * * @return bool */ public function contains_private_data() { return false; } }