00-user-old.php

<?php

/**
 *
 **/
class UserRoute implements APIRoute
{
    /**
     *
     **/
    public function describeRoutes()
    {
        return array(
            '/user(/:user_id)'          => _('Nutzerdaten'),
// ...
        );
    }

// ...

    public function routes(&$router)
    {
        //
        $router->get('/user(/:user_id)', function ($user_id) use ($router)
        {
            $user_id = $user_id ?: $GLOBALS['user']->id;

            $user = User::find($user_id);
            if (!$user) {
                $router->halt(404, sprintf('User %s not found', $user_id));
                return;
            }

            $visibilities = get_local_visibility_by_id($user_id, 'homepage');
            if (is_array(json_decode($visibilities, true))) {
                $visibilities = json_decode($visibilities, true);
            } else {
                $visibilities = array();
            }

            $get_field = function ($field, $visibility) use ($user_id, $user, $visibilities) {
                if (!$user[$field]
                    || !is_element_visible_for_user($GLOBALS['user']->id, $user_id, $visibilities[$visibility]))
                {
                    return '';
                }
                return $user[$field];
            };

            $avatar = function ($size) use ($user_id, $visibilities) {
                static $avatar;
                if (!$avatar) {
                    $avatar_id = is_element_visible_for_user($GLOBALS['user']->id, $user_id, $visibilities['picture'])
                               ? $user_id : 'nobody';
                    $avatar = Avatar::getAvatar($avatar_id);
                }
                return $avatar->getURL($size);
            };

            $user = array(
                'user_id'       => $user_id,
                'username'      => $user['username'],
                'perms'         => $user['perms'],
                'title_pre'     => $user['title_front'],
                'forename'      => $user['Vorname'],
                'lastname'      => $user['Nachname'],
                'title_post'    => $user['title_rear'],
                'email'         => get_visible_email($user_id),
                'avatar_small'  => $avatar(Avatar::SMALL),
                'avatar_medium' => $avatar(Avatar::MEDIUM),
                'avatar_normal' => $avatar(Avatar::NORMAL),
                'phone'         => $get_field('privatnr', 'private_phone'),
                'homepage'      => $get_field('Home', 'homepage'),
                'privadr'       => strip_tags($get_field('privadr', 'privadr')),
            );

            $query = "SELECT value
                      FROM user_config
                      WHERE field = ? AND user_id = ?";
            $statement = DBManager::get()->prepare($query);
            $statement->execute(array('SKYPE_NAME', $user_id));
            $user['skype'] = $statement->fetchColumn() ?: '';
            $statement->closeCursor();

            if ($user['skype']) {
                $statement->execute(array('SKYPE_ONLINE_STATUS', $user_id));
                $user['skype_show'] = (bool)$statement->fetchColumn();
            } else {
                $user['skype_show'] = false;
            }

            $router->render(compact('user'));
        });

// ...

    }
}

01-user-new.php

<?php

/**
 *
 **/
class UserRoute implements APIRoute
{

    public function describeRoutes()
    {
// ???
    }

// ...

    /**
     * @GET "/user(/:user_id)"
     */
    public function getUser($user_id)
    {
        $user_id = $user_id ?: $GLOBALS['user']->id;

        $user = User::find($user_id);
        if (!$user) {
            throw new APIException(404, sprintf('User %s not found', $user_id));
        }

        return $user;
    }
}

class User {

    static function find($id) {
        // ...
    }

    function toJSON()
    {
        return array(
            'user_id'       => $user_id,
            'username'      => $user['username'],
            'perms'         => $user['perms'],
            'title_pre'     => $user['title_front'],
            'forename'      => $user['Vorname'],
            'lastname'      => $user['Nachname'],
            'title_post'    => $user['title_rear'],
            'email'         => get_visible_email($user_id),
            'avatar_small'  => $avatar(Avatar::SMALL),
            'avatar_medium' => $avatar(Avatar::MEDIUM),
            'avatar_normal' => $avatar(Avatar::NORMAL),
            'phone'         => $get_field('privatnr', 'private_phone'),
            'homepage'      => $get_field('Home', 'homepage'),
            'privadr'       => strip_tags($get_field('privadr', 'privadr')),
        );
    }

    function toXML()
    {
        return ???;
    }
}