node-red-contrib-vban
Version:
Nodes to interact with vban protocol
55 lines (54 loc) • 2.49 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const Node_1 = require("../lib/Node");
const registerNode_1 = require("../lib/registerNode");
const Security_1 = require("../lib/Security");
const NODE_NAME = 'vban-ip-filter';
class IPFilter extends Node_1.Node {
init() {
const _super = Object.create(null, {
init: { get: () => super.init }
});
return __awaiter(this, void 0, void 0, function* () {
yield _super.init.call(this);
this.security = new Security_1.Security(this.definition.allowedIps);
this.node.on('input', (msg, send) => {
var _a, _b;
const sender = (_a = msg.payload) === null || _a === void 0 ? void 0 : _a.sender;
const sendError = (error) => {
const errorMessage = {};
errorMessage.error = error;
this.send([null, errorMessage], send);
};
if (!sender) {
sendError('fail to get sender from payload');
return;
}
try {
if (!((_b = this.security) === null || _b === void 0 ? void 0 : _b.check(sender.address))) {
sendError(`ip ${sender.address} seems not allowed`);
return;
}
}
catch (e) {
const topic = `fail to parse "${sender.address}", seems to doesn't be an IPv4 or an IPV6`;
sendError(topic);
this.node.error(e);
}
this.send([msg]);
});
});
}
}
module.exports = (RED) => {
(0, registerNode_1.registerNode)(RED, NODE_NAME, IPFilter);
};