federator/php/federator/api/fedusers.php

<?php
/**
 * SPDX-FileCopyrightText: 2024 Sascha Nitsch (grumpydeveloper) https://contentnation.net/@grumpydevelop
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 * @author Sascha Nitsch (grumpydeveloper)
 **/

namespace Federator\Api;

/**
 * /@username or /users/ handlers
 */
class FedUsers implements APIInterface
{
    /**
     * main instance
     *
     * @var \Federator\Api $main
     */
    private $main;

    /**
     * response from sub-calls
     *
     * @var string $response
     */
    private $response;

    /**
     * constructor
     *
     * @param \Federator\Main $main main instance
     * @return void
     */
    public function __construct($main)
    {
        $this->main = $main;
    }

    /**
     * run given url path
     *
     * @param array<string> $paths path array split by /
     * @param \Federator\Data\User|false $user user who is calling us @unused-param
     * @return bool true on success
     */
    public function exec($paths, $user)
    {
        $method = $_SERVER["REQUEST_METHOD"];
        $handler = null;
        $username = '';
        switch (sizeof($paths)) {
            case 2:
                if ($method === 'GET') {
                    // /fedusers/username or /@username
                    return $this->returnUserProfile($paths[1]);
                } else {
                    switch ($paths[1]) {
                        case 'inbox':
                            $handler = new FedUsers\Inbox($this->main);
                            break;
                        default:
                            break;
                    }
                }
                break;
            case 3:
                // /fedusers/username/(inbox|outbox|following|followers)
                switch ($paths[2]) {
                    case 'following':
                        // $handler = new FedUsers\Following();
                        break;
                    case 'followers':
                        // $handler = new FedUsers\Followers();
                        break;
                    case 'inbox':
                        $handler = new FedUsers\Inbox($this->main);
                        $username = $paths[1];
                        if (preg_match("#^([^@]+)@([^/]+)#", $username, $matches) != 1) {
                            $hostUrl = $this->main->getHost();
                            if ($hostUrl !== false) {
                                $host = parse_url($hostUrl, PHP_URL_HOST);
                                $port = parse_url($hostUrl, PHP_URL_PORT);
                                if ($port !== null) {
                                    $host .= `:$port`;
                                }
                                $username = `$username@$host`;
                            }
                        }
                        break;
                    case 'outbox':
                        $handler = new FedUsers\Outbox($this->main);
                        $username = $paths[1];
                        if (preg_match("#^([^@]+)@([^/]+)#", $username, $matches) != 1) {
                            $hostUrl = $this->main->getHost();
                            if ($hostUrl !== false) {
                                $host = parse_url($hostUrl, PHP_URL_HOST);
                                $port = parse_url($hostUrl, PHP_URL_PORT);
                                if ($port !== null) {
                                    $host .= `:$port`;
                                }
                                $username = `$username@$host`;
                            }
                        }
                        break;
                }
                break;
            case 4:
                // /fedusers/username/collections/(features|tags)
                // not yet implemented
                break;
        }
        if ($handler !== null) {
            $ret = false;
            switch ($method) {
                case 'GET':
                    $ret = $handler->get($username);
                    break;
                case 'POST':
                    $ret = $handler->post($username);
                    break;
            }
            if ($ret !== false) {
                $this->response = $ret;
                return true;
            }
        }
        $this->main->setResponseCode(404);
        return false;
    }


    /**
     * return user profile
     *
     * @param string $_name
     * @return boolean true on success
     */
    private function returnUserProfile($_name)
    {
        $user = \Federator\DIO\User::getUserByName(
            $this->main->getDatabase(),
            $_name,
            $this->main->getConnector(),
            $this->main->getCache()
        );
        if ($user === false || $user->id === null) {
            throw new \Federator\Exceptions\FileNotFound();
        }
        $config = $this->main->getConfig();
        $domain = $config['generic']['externaldomain'];
        $jsonKey = json_encode($user->publicKey);
        if (!is_string($jsonKey)) {
            throw new \Federator\Exceptions\FileNotFound();
        }
        $data = [
            'iconMediaType' => $user->iconMediaType,
            'iconURL' => $user->iconURL,
            'imageMediaType' => $user->imageMediaType,
            'imageURL' => $user->imageURL,
            'fqdn' => $domain,
            'name' => $user->name,
            'username' => $user->id,
            'publickey' => trim($jsonKey, '"'),
            'registered' => gmdate('Y-m-d\TH:i:s\Z', $user->registered), // 2021-03-25T00:00:00Z
            'summary' => $user->summary,
            'type' => $user->type
        ];
        $this->response = $this->main->renderTemplate('user.json', $data);
        // todo remove HTTP again
        $this->response = str_replace(
            'https://192.168.178.143/',
            'http://192.168.178.143/',
            $this->response
        );
        return true;
    }
    /**
     * set response
     *
     * @param string $response response to set
     * @return void
     */
    public function setResponse($response)
    {
        $this->response = $response;
    }

    /**
     * get internal represenation as json string
     * @return string json string or html
     */
    public function toJson()
    {
        return $this->response;
    }
}