RTL/backend/controllers/cln/peers.js

import request from '../../utils/request.js';
import { Logger } from '../../utils/logger.js';
import { Common } from '../../utils/common.js';
import { getAlias } from './network.js';
let options = null;
const logger = Logger;
const common = Common;
export const getPeers = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Peers', msg: 'List Peers..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/listpeers';
    request.post(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Peers', msg: 'Peers List Received', data: body });
        const peers = !body.peers ? [] : body.peers;
        // Resolve peer aliases with a bounded number of concurrent listnodes calls. An unbounded
        // Promise.all here fires one request per peer at once, which overwhelms clnrest on nodes
        // with many peers and fails with "Resource temporarily unavailable (os error 11)" (#1501).
        const getPeerAliasesTasks = peers.map((peer) => () => getAlias(req.session.selectedNode, peer, 'id'));
        common.runWithConcurrencyLimit(getPeerAliasesTasks, 20, () => {
            // The limiter invokes this outside the surrounding .then/.catch chain, so guard the
            // response-send: a throw here would otherwise be an unhandled rejection with no response.
            try {
                logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Peers', msg: 'Sorted Peers List Received', data: body.peers });
                res.status(200).json(body.peers || []);
            }
            catch (e) {
                const err = common.handleError(e, 'Peers', 'List Peers Error', req.session.selectedNode);
                if (!res.headersSent) {
                    res.status(err.statusCode).json({ message: err.message, error: err.error });
                }
            }
        });
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Peers', 'List Peers Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const postPeer = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Peers', msg: 'Connecting Peer..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/connect';
    options.body = req.body;
    request.post(options).then((connectRes) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Peers', msg: 'Peer Connected', data: connectRes });
        const listOptions = common.getOptions(req);
        listOptions.url = req.session.selectedNode.settings.lnServerUrl + '/v1/listpeers';
        request.post(listOptions).then((listPeersRes) => {
            const peers = listPeersRes && listPeersRes.peers ? common.newestOnTop(listPeersRes.peers, 'id', connectRes.id) : [];
            // Resolve aliases (bounded) for the returned peers so a freshly connected peer shows its
            // alias rather than a raw node id, matching getPeers and the LND postPeer path (#1629 F5).
            const getPeerAliasesTasks = peers.map((peer) => () => getAlias(req.session.selectedNode, peer, 'id'));
            common.runWithConcurrencyLimit(getPeerAliasesTasks, 20, () => {
                try {
                    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Peers', msg: 'Peers List after Connect Received', data: peers });
                    res.status(201).json(peers);
                }
                catch (e) {
                    const err = common.handleError(e, 'Peers', 'Connect Peer Error', req.session.selectedNode);
                    if (!res.headersSent) {
                        res.status(err.statusCode).json({ message: err.message, error: err.error });
                    }
                }
            });
        }).catch((errRes) => {
            const err = common.handleError(errRes, 'Peers', 'Connect Peer Error', req.session.selectedNode);
            return res.status(err.statusCode).json({ message: err.message, error: err.error });
        });
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Peers', 'Connect Peer Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const deletePeer = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Peers', msg: 'Disconnecting Peer..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/disconnect';
    options.body = req.body;
    request.post(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Peers', msg: 'Peer Disconnected', data: body });
        res.status(204).json({});
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Peers', 'Detach Peer Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};