friendica_2021-01/src/Module/NodeInfo.php

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<?php
namespace Friendica\Module;
use Friendica\App;
use Friendica\BaseModule;
use Friendica\Core\Addon;
use Friendica\Core\System;
/**
* Standardized way of exposing metadata about a server running one of the distributed social networks.
* @see https://github.com/jhass/nodeinfo/blob/master/PROTOCOL.md
*/
class NodeInfo extends BaseModule
{
public static function init()
{
$config = self::getApp()->getConfig();
if (!$config->get('system', 'nodeinfo')) {
System::httpExit(404);
}
}
public static function rawContent()
{
$app = self::getApp();
// @TODO: Replace with parameter from router
// if the first argument is ".well-known", print the well-known text
if (($app->argc > 1) && ($app->argv[0] == '.well-known')) {
self::printWellKnown($app);
// otherwise print the nodeinfo
} else {
self::printNodeInfo($app);
}
}
/**
* Prints the well-known nodeinfo redirect
*
* @param App $app
*
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
private static function printWellKnown(App $app)
{
$config = $app->getConfig();
if (!$config->get('system', 'nodeinfo')) {
System::httpExit(404);
}
$nodeinfo = [
'links' => [[
'rel' => 'http://nodeinfo.diaspora.software/ns/schema/1.0',
'href' => $app->getBaseURL() . '/nodeinfo/1.0']]
];
header('Content-type: application/json; charset=utf-8');
echo json_encode($nodeinfo, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
exit;
}
/**
* Print the nodeinfo
*
* @param App $app
*/
private static function printNodeInfo(App $app)
{
$config = $app->getConfig();
$smtp = (function_exists('imap_open') && !$config->get('system', 'imap_disabled') && !$config->get('system', 'dfrn_only'));
$nodeinfo = [
'version' => 1.0,
'software' => [
'name' => 'friendica',
'version' => FRIENDICA_VERSION . '-' . DB_UPDATE_VERSION,
],
'protocols' => [
'inbound' => [
'friendica',
],
'outbound' => [
'friendica',
],
],
'services' => [
'inbound' => [],
'outbound' => [],
],
'usage' => [],
'openRegistrations' => intval($config->get('config', 'register_policy')) !== Register::CLOSED,
'metadata' => [
'nodeName' => $config->get('config', 'sitename'),
],
];
if (!empty($config->get('system', 'diaspora_enabled'))) {
$nodeinfo['protocols']['inbound'][] = 'diaspora';
$nodeinfo['protocols']['outbound'][] = 'diaspora';
}
if (empty($config->get('system', 'ostatus_disabled'))) {
$nodeinfo['protocols']['inbound'][] = 'gnusocial';
$nodeinfo['protocols']['outbound'][] = 'gnusocial';
}
if (!empty($config->get('system', 'nodeinfo'))) {
$nodeinfo['usage']['users'] = [
'total' => intval($config->get('nodeinfo', 'total_users')),
'activeHalfyear' => intval($config->get('nodeinfo', 'active_users_halfyear')),
'activeMonth' => intval($config->get('nodeinfo', 'active_users_monthly'))
];
$nodeinfo['usage']['localPosts'] = intval($config->get('nodeinfo', 'local_posts'));
$nodeinfo['usage']['localComments'] = intval($config->get('nodeinfo', 'local_comments'));
if (Addon::isEnabled('blogger')) {
$nodeinfo['services']['outbound'][] = 'blogger';
}
if (Addon::isEnabled('dwpost')) {
$nodeinfo['services']['outbound'][] = 'dreamwidth';
}
if (Addon::isEnabled('statusnet')) {
$nodeinfo['services']['inbound'][] = 'gnusocial';
$nodeinfo['services']['outbound'][] = 'gnusocial';
}
if (Addon::isEnabled('ijpost')) {
$nodeinfo['services']['outbound'][] = 'insanejournal';
}
if (Addon::isEnabled('libertree')) {
$nodeinfo['services']['outbound'][] = 'libertree';
}
if (Addon::isEnabled('buffer')) {
$nodeinfo['services']['outbound'][] = 'linkedin';
}
if (Addon::isEnabled('ljpost')) {
$nodeinfo['services']['outbound'][] = 'livejournal';
}
if (Addon::isEnabled('buffer')) {
$nodeinfo['services']['outbound'][] = 'pinterest';
}
if (Addon::isEnabled('posterous')) {
$nodeinfo['services']['outbound'][] = 'posterous';
}
if (Addon::isEnabled('pumpio')) {
$nodeinfo['services']['inbound'][] = 'pumpio';
$nodeinfo['services']['outbound'][] = 'pumpio';
}
if ($smtp) {
$nodeinfo['services']['outbound'][] = 'smtp';
}
if (Addon::isEnabled('tumblr')) {
$nodeinfo['services']['outbound'][] = 'tumblr';
}
if (Addon::isEnabled('twitter') || Addon::isEnabled('buffer')) {
$nodeinfo['services']['outbound'][] = 'twitter';
}
if (Addon::isEnabled('wppost')) {
$nodeinfo['services']['outbound'][] = 'wordpress';
}
$nodeinfo['metadata']['protocols'] = $nodeinfo['protocols'];
$nodeinfo['metadata']['protocols']['outbound'][] = 'atom1.0';
$nodeinfo['metadata']['protocols']['inbound'][] = 'atom1.0';
$nodeinfo['metadata']['protocols']['inbound'][] = 'rss2.0';
$nodeinfo['metadata']['services'] = $nodeinfo['services'];
if (Addon::isEnabled('twitter')) {
$nodeinfo['metadata']['services']['inbound'][] = 'twitter';
}
$nodeinfo['metadata']['explicitContent'] = $config->get('system', 'explicit_content', false) == true;
}
header('Content-type: application/json; charset=utf-8');
echo json_encode($nodeinfo, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
exit;
}
}