lib.php

<?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/>.

/**
 * Library functions for Cloudflare Stream plugin
 *
 * @package    local_cloudflarestream
 * @copyright  2025 Your Name
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

function local_cloudflarestream_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options = []) {
    global $DB;
    
    if (!get_config('local_cloudflarestream', 'enabled')) {
        return false;
    }
    
    $fs = get_file_storage();
    
    $itemid = array_shift($args);
    $filename = array_pop($args);
    $filepath = $args ? '/' . implode('/', $args) . '/' : '/';
    
    $file = $fs->get_file($context->id, 'local_cloudflarestream', $filearea, $itemid, $filepath, $filename);
    
    if (!$file || $file->is_directory()) {
        return false;
    }
    
    $streamvideo = \local_cloudflarestream\video_manager::get_stream_video_by_fileid($file->get_id());
    
    if ($streamvideo && $streamvideo->status === 'ready') {
        $playerurl = \local_cloudflarestream\video_manager::get_player_url($streamvideo->streamid);
        
        if ($playerurl) {
            redirect($playerurl);
            die();
        }
    }
    
    send_stored_file($file, null, 0, $forcedownload, $options);
}

function local_cloudflarestream_before_standard_html_head() {
    global $PAGE;
    
    if (!get_config('local_cloudflarestream', 'enabled')) {
        return '';
    }
    
    if ($PAGE->pagelayout === 'embedded' || $PAGE->pagelayout === 'popup') {
        return '';
    }
    
    $PAGE->requires->js_amd_inline("
        require(['jquery'], function($) {
            $(document).ready(function() {
                // Find all video elements and check if they have Stream versions
                $('video').each(function() {
                    var video = $(this);
                    var src = video.attr('src') || video.find('source').attr('src');
                    
                    if (src && src.indexOf('pluginfile.php') > -1) {
                        // This is a Moodle file, check if we have a Stream version
                        $.ajax({
                            url: M.cfg.wwwroot + '/local/cloudflarestream/ajax.php',
                            data: {
                                action: 'check_stream_video',
                                url: src,
                                sesskey: M.cfg.sesskey
                            },
                            success: function(response) {
                                if (response.success && response.embed_code) {
                                    // Replace video with Stream player
                                    video.replaceWith(response.embed_code);
                                }
                            }
                        });
                    }
                });
            });
        });
    ");
    
    return '';
}