import request from 'request-promise'; import { Logger } from '../../utils/logger.js'; import { Common } from '../../utils/common.js'; import { createInvoiceRequestCall, listPendingInvoicesRequestCall } from './invoices.js'; import { findRouteBetweenNodesRequestCall } from './network.js'; import { getSentInfoFromPaymentRequest, sendPaymentToRouteRequestCall } from './payments.js'; let options = null; const logger = Logger; const common = Common; export const simplifyAllChannels = (selNode, channels) => { let channelNodeIds = ''; const simplifiedChannels = []; channels.forEach((channel) => { channelNodeIds = channelNodeIds + ',' + channel.nodeId; simplifiedChannels.push({ nodeId: channel.nodeId ? channel.nodeId : '', channelId: channel.channelId ? channel.channelId : '', state: channel.state ? channel.state : '', announceChannel: channel.data && channel.data.commitments && channel.data.commitments.channelFlags && channel.data.commitments.channelFlags.announceChannel ? channel.data.commitments.channelFlags.announceChannel : false, toLocal: (channel.data.commitments.localCommit.spec.toLocal) ? Math.round(+channel.data.commitments.localCommit.spec.toLocal / 1000) : 0, toRemote: (channel.data.commitments.localCommit.spec.toRemote) ? Math.round(+channel.data.commitments.localCommit.spec.toRemote / 1000) : 0, shortChannelId: channel.data && channel.data.channelUpdate && channel.data.channelUpdate.shortChannelId ? channel.data.channelUpdate.shortChannelId : '', isFunder: channel.data && channel.data.commitments && channel.data.commitments.localParams && channel.data.commitments.localParams.isFunder ? channel.data.commitments.localParams.isFunder : false, buried: channel.data && channel.data.buried ? channel.data.buried : false, feeBaseMsat: channel.data && channel.data.channelUpdate && channel.data.channelUpdate.feeBaseMsat ? channel.data.channelUpdate.feeBaseMsat : 0, feeRatePerKw: (channel.data.commitments.localCommit.spec.feeratePerKw) ? channel.data.commitments.localCommit.spec.feeratePerKw : 0, feeProportionalMillionths: channel.data && channel.data.channelUpdate && channel.data.channelUpdate.feeProportionalMillionths ? channel.data.channelUpdate.feeProportionalMillionths : 0, alias: '' }); }); channelNodeIds = channelNodeIds.substring(1); options.url = selNode.ln_server_url + '/nodes'; options.form = { nodeIds: channelNodeIds }; logger.log({ selectedNode: selNode, level: 'DEBUG', fileName: 'Channels', msg: 'Node Ids to find alias', data: channelNodeIds }); return request.post(options).then((nodes) => { logger.log({ selectedNode: selNode, level: 'DEBUG', fileName: 'Channels', msg: 'Filtered Nodes Received', data: nodes }); let foundPeer = null; simplifiedChannels?.map((channel) => { foundPeer = nodes.find((channelWithAlias) => channel.nodeId === channelWithAlias.nodeId); channel.alias = foundPeer ? foundPeer.alias : channel.nodeId.substring(0, 20); return channel; }); return simplifiedChannels; }).catch((err) => simplifiedChannels); }; export const getChannels = (req, res, next) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'List Channels..' }); options = common.getOptions(req); if (options.error) { return res.status(options.statusCode).json({ message: options.message, error: options.error }); } options.url = req.session.selectedNode.ln_server_url + '/channels'; options.form = {}; if (req.query && req.query.nodeId) { options.form = req.query; logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Channels Node Id', data: options.form }); } logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Options', data: options }); if (common.read_dummy_data) { common.getDummyData('Channels', req.session.selectedNode.ln_implementation).then((data) => { res.status(200).json(data); }); } else { request.post(options).then((body) => { logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Channels List Received', data: body }); if (body && body.length) { return simplifyAllChannels(req.session.selectedNode, body).then((simplifiedChannels) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Simplified Channels with Alias Received', data: simplifiedChannels }); res.status(200).json(simplifiedChannels); }); } else { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Empty Channels List Received' }); res.status(200).json([]); } }). catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'List Channels Error', req.session.selectedNode); return res.status(err.statusCode).json({ message: err.message, error: err.error }); }); } }; export const getChannelStats = (req, res, next) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Getting Channel States..' }); options = common.getOptions(req); if (options.error) { return res.status(options.statusCode).json({ message: options.message, error: options.error }); } options.url = req.session.selectedNode.ln_server_url + '/channelstats'; const today = new Date(Date.now()); const tillToday = (Math.round(today.getTime() / 1000)).toString(); const fromLastMonth = (Math.round(new Date(today.getFullYear(), today.getMonth() - 1, today.getDate() + 1, 0, 0, 0).getTime() / 1000)).toString(); options.form = { from: fromLastMonth, to: tillToday }; request.post(options).then((body) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Channel States Received', data: body }); res.status(201).json(body); }).catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'Get Channel Stats Error', req.session.selectedNode); return res.status(err.statusCode).json({ message: err.message, error: err.error }); }); }; export const openChannel = (req, res, next) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Opening Channel..' }); options = common.getOptions(req); if (options.error) { return res.status(options.statusCode).json({ message: options.message, error: options.error }); } options.url = req.session.selectedNode.ln_server_url + '/open'; options.form = req.body; logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Open Channel Params', data: options.form }); request.post(options).then((body) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Channel Opened', data: body }); res.status(201).json(body); }).catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'Open Channel Error', req.session.selectedNode); return res.status(err.statusCode).json({ message: err.message, error: err.error }); }); }; export const updateChannelRelayFee = (req, res, next) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Updating Channel Relay Fee..' }); options = common.getOptions(req); if (options.error) { return res.status(options.statusCode).json({ message: options.message, error: options.error }); } options.url = req.session.selectedNode.ln_server_url + '/updaterelayfee'; options.form = req.query; logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Update Relay Fee Params', data: options.form }); request.post(options).then((body) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Channel Relay Fee Updated', data: body }); res.status(201).json(body); }).catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'Update Relay Fee Error', req.session.selectedNode); return res.status(err.statusCode).json({ message: err.message, error: err.error }); }); }; export const closeChannel = (req, res, next) => { options = common.getOptions(req); if (options.error) { return res.status(options.statusCode).json({ message: options.message, error: options.error }); } if (req.query.force !== 'true') { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Closing Channel..' }); options.url = req.session.selectedNode.ln_server_url + '/close'; } else { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Force Closing Channel..' }); options.url = req.session.selectedNode.ln_server_url + '/forceclose'; } options.form = { channelId: req.query.channelId }; logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Close URL', data: options.url }); logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Close Params', data: options.form }); request.post(options).then((body) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Channel Closed', data: body }); res.status(204).json(body); }).catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'Close Channel Error', req.session.selectedNode); return res.status(err.statusCode).json({ message: err.message, error: err.error }); }); }; // options.form = { sourceNodeId: req.params.source, targetNodeId: req.params.target, amountMsat: req.params.amount, ignoreNodeIds: req.params.ignore }; export const circularRebalance = (req, res, next) => { const crInvDescription = 'Circular rebalancing invoice for ' + (req.body.amountMsat / 1000) + ' Sats'; options = common.getOptions(req); if (options.error) { return res.status(options.statusCode).json({ message: options.message, error: options.error }); } options.form = req.body; logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Rebalance Params', data: options.form }); const tillToday = (Math.round(new Date(Date.now()).getTime() / 1000)).toString(); // Check if unpaid Invoice exists already listPendingInvoicesRequestCall(req.session.selectedNode).then((callRes) => { const foundExistingInvoice = callRes.find(inv => inv.description.includes(crInvDescription) && inv.amount === req.body.amountMsat && inv.expiry && inv.timestamp && ((inv.expiry + inv.timestamp) >= tillToday)); // Create new invoice if doesn't exist already const requestCalls = foundExistingInvoice && foundExistingInvoice.serialized ? [findRouteBetweenNodesRequestCall(req.session.selectedNode, req.body.amountMsat, req.body.sourceNodeId, req.body.targetNodeId, req.body.ignoreNodeIds, req.body.format)] : [findRouteBetweenNodesRequestCall(req.session.selectedNode, req.body.amountMsat, req.body.sourceNodeId, req.body.targetNodeId, req.body.ignoreNodeIds, req.body.format), createInvoiceRequestCall(req.session.selectedNode, crInvDescription, req.body.amountMsat)]; Promise.all(requestCalls).then((values) => { let routes = values[0]?.routes?.filter(route => { return !((route.shortChannelIds[0] === req.body.sourceShortChannelId && route.shortChannelIds[1] === req.body.targetShortChannelId) || (route.shortChannelIds[1] === req.body.sourceShortChannelId && route.shortChannelIds[0] === req.body.targetShortChannelId)); }); let firstRoute = routes[0].shortChannelIds.join() || ''; let shortChannelIds = req.body.sourceShortChannelId + ',' + firstRoute + ',' + req.body.targetShortChannelId; let invoice = (foundExistingInvoice && foundExistingInvoice.serialized ? foundExistingInvoice.serialized : (values[1] ? values[1].serialized : '')) || ''; let paymentHash = (foundExistingInvoice && foundExistingInvoice.paymentHash ? foundExistingInvoice.paymentHash : (values[1] ? values[1].paymentHash : '') || ''); return sendPaymentToRouteRequestCall(req.session.selectedNode, shortChannelIds, invoice, req.body.amountMsat).then(payToRouteCallRes => { setTimeout(() => { return getSentInfoFromPaymentRequest(req.session.selectedNode, paymentHash).then(sentInfoCallRes => { let payStatus = sentInfoCallRes.length && sentInfoCallRes.length > 0 ? sentInfoCallRes[sentInfoCallRes.length - 1].status : sentInfoCallRes; return res.status(201).json({ flgReusingInvoice: !!foundExistingInvoice, invoice: invoice, paymentHash: paymentHash, paymentDetails: payToRouteCallRes, paymentStatus: payStatus }); }).catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'Channel Rebalance From Sent Info Error', req.session.selectedNode); return res.status(err.statusCode).json({ flgReusingInvoice: !!foundExistingInvoice, invoice: invoice, paymentHash: paymentHash, paymentDetails: payToRouteCallRes, paymentStatus: { message: err.message, error: err.error } }); }); }, 3000); }).catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'Channel Rebalance From Send Payment To Route Error', req.session.selectedNode); return res.status(err.statusCode).json({ flgReusingInvoice: !!foundExistingInvoice, invoice: invoice, paymentHash: paymentHash, paymentDetails: {}, paymentStatus: { message: err.message, error: err.error } }); }); }).catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'Channel Rebalance From Find Routes Error', req.session.selectedNode); return res.status(err.statusCode).json({ flgReusingInvoice: !!foundExistingInvoice, invoice: (foundExistingInvoice.serialized || ''), paymentHash: '', paymentDetails: {}, paymentStatus: { message: err.message, error: err.error } }); }); }).catch((errRes) => { const err = common.handleError(errRes, 'Channels', 'Channel Rebalance From List Pending Invoices Error', req.session.selectedNode); return res.status(err.statusCode).json({ flgReusingInvoice: false, invoice: '', paymentHash: '', paymentDetails: {}, paymentStatus: { message: err.message, error: err.error } }); }); };