friendica-addons/webrtc/webrtc.php

<?php
/*
 * Name: WebRTC Application
 * Description: add a webrtc instance for video/audio
 * Version: 1.0
 * Author: Stephen Mahood <https://friends.mayfirst.org/profile/marxistvegan>
 * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
 */

use Friendica\Core\Hook;
use Friendica\Core\Renderer;
use Friendica\DI;

function webrtc_install() {
	Hook::register('app_menu', 'addon/webrtc/webrtc.php', 'webrtc_app_menu');
}

function webrtc_app_menu(array &$b)
{
	$b['app_menu'][] = '<div class="app-title"><a href="webrtc">' . DI::l10n()->t('WebRTC Videochat') . '</a></div>';
}

function webrtc_addon_admin (string &$o)
{
	$t = Renderer::getMarkupTemplate('admin.tpl', 'addon/webrtc/' );
	$o = Renderer::replaceMacros($t, [
		'$submit' => DI::l10n()->t('Save Settings'),
		'$webrtcurl' => [
			'webrtcurl',
			DI::l10n()->t('WebRTC Base URL'),
			DI::config()->get('webrtc','webrtcurl' ),
			DI::l10n()->t('Page your users will create a WebRTC chat room on. For example you could use https://live.mayfirst.org .'),
		],
	]);
}

function webrtc_addon_admin_post ()
{
	DI::config()->set('webrtc', 'webrtcurl', trim($_POST['webrtcurl'] ?? ''));
}

/**
 * This is a statement rather than an actual function definition. The simple
 * existence of this method is checked to figure out if the addon offers a
 * module.
 */
function webrtc_module() {}

function webrtc_content(): string
{
	$o = '';

	/* landingpage to create chatrooms */
	$webrtcurl = DI::config()->get('webrtc','webrtcurl');

	/* embedd the landing page in an iframe */
	$o .= '<h2>'.DI::l10n()->t('Video Chat').'</h2>';
	$o .= '<p>'.DI::l10n()->t('WebRTC is a video and audio conferencing tool that works in all modern browsers. Just create a new chat room and send the link to someone you want to chat with.').'</p>';
	if ($webrtcurl == '') {
		$o .= '<p>'.DI::l10n()->t('Please contact your friendica admin and send a reminder to configure the WebRTC addon.').'</p>';
	} else {
		$o .= '<iframe src="'.$webrtcurl.'" width="600px" height="600px"></iframe>';
	}

	return $o;
}