998 lines
34 KiB
JavaScript
998 lines
34 KiB
JavaScript
"use strict";
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/* eslint-disable prefer-destructuring */
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/* eslint-disable no-param-reassign */
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Address6 = void 0;
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const common = __importStar(require("./common"));
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const constants4 = __importStar(require("./v4/constants"));
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const constants6 = __importStar(require("./v6/constants"));
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const helpers = __importStar(require("./v6/helpers"));
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const ipv4_1 = require("./ipv4");
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const regular_expressions_1 = require("./v6/regular-expressions");
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const address_error_1 = require("./address-error");
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const jsbn_1 = require("jsbn");
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const sprintf_js_1 = require("sprintf-js");
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function assert(condition) {
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if (!condition) {
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throw new Error('Assertion failed.');
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}
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}
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function addCommas(number) {
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const r = /(\d+)(\d{3})/;
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while (r.test(number)) {
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number = number.replace(r, '$1,$2');
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}
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return number;
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}
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function spanLeadingZeroes4(n) {
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n = n.replace(/^(0{1,})([1-9]+)$/, '<span class="parse-error">$1</span>$2');
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n = n.replace(/^(0{1,})(0)$/, '<span class="parse-error">$1</span>$2');
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return n;
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}
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/*
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* A helper function to compact an array
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*/
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function compact(address, slice) {
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const s1 = [];
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const s2 = [];
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let i;
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for (i = 0; i < address.length; i++) {
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if (i < slice[0]) {
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s1.push(address[i]);
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}
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else if (i > slice[1]) {
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s2.push(address[i]);
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}
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}
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return s1.concat(['compact']).concat(s2);
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}
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function paddedHex(octet) {
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return (0, sprintf_js_1.sprintf)('%04x', parseInt(octet, 16));
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}
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function unsignByte(b) {
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// eslint-disable-next-line no-bitwise
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return b & 0xff;
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}
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/**
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* Represents an IPv6 address
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* @class Address6
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* @param {string} address - An IPv6 address string
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* @param {number} [groups=8] - How many octets to parse
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* @example
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* var address = new Address6('2001::/32');
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*/
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class Address6 {
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constructor(address, optionalGroups) {
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this.addressMinusSuffix = '';
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this.parsedSubnet = '';
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this.subnet = '/128';
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this.subnetMask = 128;
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this.v4 = false;
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this.zone = '';
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// #region Attributes
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/**
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* Returns true if the given address is in the subnet of the current address
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* @memberof Address6
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* @instance
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* @returns {boolean}
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*/
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this.isInSubnet = common.isInSubnet;
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/**
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* Returns true if the address is correct, false otherwise
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* @memberof Address6
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* @instance
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* @returns {boolean}
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*/
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this.isCorrect = common.isCorrect(constants6.BITS);
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if (optionalGroups === undefined) {
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this.groups = constants6.GROUPS;
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}
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else {
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this.groups = optionalGroups;
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}
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this.address = address;
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const subnet = constants6.RE_SUBNET_STRING.exec(address);
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if (subnet) {
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this.parsedSubnet = subnet[0].replace('/', '');
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this.subnetMask = parseInt(this.parsedSubnet, 10);
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this.subnet = `/${this.subnetMask}`;
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if (Number.isNaN(this.subnetMask) ||
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this.subnetMask < 0 ||
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this.subnetMask > constants6.BITS) {
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throw new address_error_1.AddressError('Invalid subnet mask.');
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}
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address = address.replace(constants6.RE_SUBNET_STRING, '');
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}
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else if (/\//.test(address)) {
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throw new address_error_1.AddressError('Invalid subnet mask.');
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}
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const zone = constants6.RE_ZONE_STRING.exec(address);
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if (zone) {
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this.zone = zone[0];
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address = address.replace(constants6.RE_ZONE_STRING, '');
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}
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this.addressMinusSuffix = address;
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this.parsedAddress = this.parse(this.addressMinusSuffix);
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}
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static isValid(address) {
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try {
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// eslint-disable-next-line no-new
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new Address6(address);
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return true;
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}
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catch (e) {
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return false;
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}
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}
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/**
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* Convert a BigInteger to a v6 address object
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* @memberof Address6
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* @static
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* @param {BigInteger} bigInteger - a BigInteger to convert
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* @returns {Address6}
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* @example
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* var bigInteger = new BigInteger('1000000000000');
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* var address = Address6.fromBigInteger(bigInteger);
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* address.correctForm(); // '::e8:d4a5:1000'
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*/
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static fromBigInteger(bigInteger) {
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const hex = bigInteger.toString(16).padStart(32, '0');
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const groups = [];
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let i;
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for (i = 0; i < constants6.GROUPS; i++) {
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groups.push(hex.slice(i * 4, (i + 1) * 4));
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}
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return new Address6(groups.join(':'));
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}
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/**
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* Convert a URL (with optional port number) to an address object
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* @memberof Address6
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* @static
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* @param {string} url - a URL with optional port number
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* @example
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* var addressAndPort = Address6.fromURL('http://[ffff::]:8080/foo/');
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* addressAndPort.address.correctForm(); // 'ffff::'
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* addressAndPort.port; // 8080
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*/
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static fromURL(url) {
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let host;
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let port = null;
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let result;
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// If we have brackets parse them and find a port
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if (url.indexOf('[') !== -1 && url.indexOf(']:') !== -1) {
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result = constants6.RE_URL_WITH_PORT.exec(url);
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if (result === null) {
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return {
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error: 'failed to parse address with port',
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address: null,
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port: null,
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};
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}
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host = result[1];
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port = result[2];
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// If there's a URL extract the address
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}
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else if (url.indexOf('/') !== -1) {
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// Remove the protocol prefix
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url = url.replace(/^[a-z0-9]+:\/\//, '');
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// Parse the address
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result = constants6.RE_URL.exec(url);
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if (result === null) {
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return {
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error: 'failed to parse address from URL',
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address: null,
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port: null,
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};
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}
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host = result[1];
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// Otherwise just assign the URL to the host and let the library parse it
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}
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else {
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host = url;
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}
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// If there's a port convert it to an integer
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if (port) {
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port = parseInt(port, 10);
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// squelch out of range ports
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if (port < 0 || port > 65536) {
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port = null;
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}
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}
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else {
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// Standardize `undefined` to `null`
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port = null;
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}
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return {
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address: new Address6(host),
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port,
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};
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}
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/**
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* Create an IPv6-mapped address given an IPv4 address
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* @memberof Address6
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* @static
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* @param {string} address - An IPv4 address string
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* @returns {Address6}
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* @example
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* var address = Address6.fromAddress4('192.168.0.1');
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* address.correctForm(); // '::ffff:c0a8:1'
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* address.to4in6(); // '::ffff:192.168.0.1'
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*/
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static fromAddress4(address) {
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const address4 = new ipv4_1.Address4(address);
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const mask6 = constants6.BITS - (constants4.BITS - address4.subnetMask);
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return new Address6(`::ffff:${address4.correctForm()}/${mask6}`);
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}
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/**
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* Return an address from ip6.arpa form
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* @memberof Address6
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* @static
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* @param {string} arpaFormAddress - an 'ip6.arpa' form address
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* @returns {Adress6}
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* @example
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* var address = Address6.fromArpa(e.f.f.f.3.c.2.6.f.f.f.e.6.6.8.e.1.0.6.7.9.4.e.c.0.0.0.0.1.0.0.2.ip6.arpa.)
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* address.correctForm(); // '2001:0:ce49:7601:e866:efff:62c3:fffe'
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*/
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static fromArpa(arpaFormAddress) {
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// remove ending ".ip6.arpa." or just "."
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let address = arpaFormAddress.replace(/(\.ip6\.arpa)?\.$/, '');
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const semicolonAmount = 7;
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// correct ip6.arpa form with ending removed will be 63 characters
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if (address.length !== 63) {
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throw new address_error_1.AddressError("Invalid 'ip6.arpa' form.");
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}
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const parts = address.split('.').reverse();
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for (let i = semicolonAmount; i > 0; i--) {
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const insertIndex = i * 4;
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parts.splice(insertIndex, 0, ':');
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}
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address = parts.join('');
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return new Address6(address);
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}
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/**
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* Return the Microsoft UNC transcription of the address
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* @memberof Address6
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* @instance
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* @returns {String} the Microsoft UNC transcription of the address
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*/
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microsoftTranscription() {
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return (0, sprintf_js_1.sprintf)('%s.ipv6-literal.net', this.correctForm().replace(/:/g, '-'));
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}
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/**
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* Return the first n bits of the address, defaulting to the subnet mask
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* @memberof Address6
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* @instance
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* @param {number} [mask=subnet] - the number of bits to mask
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* @returns {String} the first n bits of the address as a string
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*/
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mask(mask = this.subnetMask) {
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return this.getBitsBase2(0, mask);
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}
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/**
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* Return the number of possible subnets of a given size in the address
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* @memberof Address6
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* @instance
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* @param {number} [size=128] - the subnet size
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* @returns {String}
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*/
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// TODO: probably useful to have a numeric version of this too
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possibleSubnets(subnetSize = 128) {
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const availableBits = constants6.BITS - this.subnetMask;
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const subnetBits = Math.abs(subnetSize - constants6.BITS);
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const subnetPowers = availableBits - subnetBits;
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if (subnetPowers < 0) {
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return '0';
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}
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return addCommas(new jsbn_1.BigInteger('2', 10).pow(subnetPowers).toString(10));
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}
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/**
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* Helper function getting start address.
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* @memberof Address6
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* @instance
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* @returns {BigInteger}
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*/
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_startAddress() {
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return new jsbn_1.BigInteger(this.mask() + '0'.repeat(constants6.BITS - this.subnetMask), 2);
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}
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/**
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* The first address in the range given by this address' subnet
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* Often referred to as the Network Address.
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* @memberof Address6
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* @instance
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* @returns {Address6}
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*/
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startAddress() {
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return Address6.fromBigInteger(this._startAddress());
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}
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/**
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* The first host address in the range given by this address's subnet ie
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* the first address after the Network Address
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* @memberof Address6
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* @instance
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* @returns {Address6}
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*/
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startAddressExclusive() {
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const adjust = new jsbn_1.BigInteger('1');
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return Address6.fromBigInteger(this._startAddress().add(adjust));
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}
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/**
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* Helper function getting end address.
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* @memberof Address6
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* @instance
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* @returns {BigInteger}
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*/
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_endAddress() {
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return new jsbn_1.BigInteger(this.mask() + '1'.repeat(constants6.BITS - this.subnetMask), 2);
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}
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/**
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* The last address in the range given by this address' subnet
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* Often referred to as the Broadcast
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* @memberof Address6
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* @instance
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* @returns {Address6}
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*/
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endAddress() {
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return Address6.fromBigInteger(this._endAddress());
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}
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/**
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* The last host address in the range given by this address's subnet ie
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* the last address prior to the Broadcast Address
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* @memberof Address6
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* @instance
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* @returns {Address6}
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*/
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endAddressExclusive() {
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const adjust = new jsbn_1.BigInteger('1');
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return Address6.fromBigInteger(this._endAddress().subtract(adjust));
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}
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/**
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* Return the scope of the address
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* @memberof Address6
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* @instance
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* @returns {String}
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*/
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getScope() {
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let scope = constants6.SCOPES[this.getBits(12, 16).intValue()];
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if (this.getType() === 'Global unicast' && scope !== 'Link local') {
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scope = 'Global';
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}
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return scope || 'Unknown';
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}
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/**
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* Return the type of the address
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* @memberof Address6
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* @instance
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* @returns {String}
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*/
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getType() {
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for (const subnet of Object.keys(constants6.TYPES)) {
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if (this.isInSubnet(new Address6(subnet))) {
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return constants6.TYPES[subnet];
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}
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}
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return 'Global unicast';
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}
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/**
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* Return the bits in the given range as a BigInteger
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* @memberof Address6
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* @instance
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* @returns {BigInteger}
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*/
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getBits(start, end) {
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return new jsbn_1.BigInteger(this.getBitsBase2(start, end), 2);
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}
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/**
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* Return the bits in the given range as a base-2 string
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* @memberof Address6
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* @instance
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* @returns {String}
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*/
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getBitsBase2(start, end) {
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return this.binaryZeroPad().slice(start, end);
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}
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/**
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* Return the bits in the given range as a base-16 string
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* @memberof Address6
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* @instance
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* @returns {String}
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*/
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getBitsBase16(start, end) {
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const length = end - start;
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if (length % 4 !== 0) {
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throw new Error('Length of bits to retrieve must be divisible by four');
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}
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return this.getBits(start, end)
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.toString(16)
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.padStart(length / 4, '0');
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}
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/**
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* Return the bits that are set past the subnet mask length
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* @memberof Address6
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* @instance
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* @returns {String}
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*/
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getBitsPastSubnet() {
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return this.getBitsBase2(this.subnetMask, constants6.BITS);
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}
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/**
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* Return the reversed ip6.arpa form of the address
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* @memberof Address6
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* @param {Object} options
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* @param {boolean} options.omitSuffix - omit the "ip6.arpa" suffix
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* @instance
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* @returns {String}
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*/
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reverseForm(options) {
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if (!options) {
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options = {};
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}
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const characters = Math.floor(this.subnetMask / 4);
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const reversed = this.canonicalForm()
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.replace(/:/g, '')
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.split('')
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.slice(0, characters)
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.reverse()
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.join('.');
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if (characters > 0) {
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if (options.omitSuffix) {
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return reversed;
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}
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return (0, sprintf_js_1.sprintf)('%s.ip6.arpa.', reversed);
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}
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if (options.omitSuffix) {
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return '';
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}
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return 'ip6.arpa.';
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}
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/**
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* Return the correct form of the address
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* @memberof Address6
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* @instance
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* @returns {String}
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*/
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correctForm() {
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let i;
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let groups = [];
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let zeroCounter = 0;
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const zeroes = [];
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for (i = 0; i < this.parsedAddress.length; i++) {
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const value = parseInt(this.parsedAddress[i], 16);
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if (value === 0) {
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zeroCounter++;
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}
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if (value !== 0 && zeroCounter > 0) {
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if (zeroCounter > 1) {
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zeroes.push([i - zeroCounter, i - 1]);
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}
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zeroCounter = 0;
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}
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}
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// Do we end with a string of zeroes?
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if (zeroCounter > 1) {
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zeroes.push([this.parsedAddress.length - zeroCounter, this.parsedAddress.length - 1]);
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}
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const zeroLengths = zeroes.map((n) => n[1] - n[0] + 1);
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if (zeroes.length > 0) {
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const index = zeroLengths.indexOf(Math.max(...zeroLengths));
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groups = compact(this.parsedAddress, zeroes[index]);
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}
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else {
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groups = this.parsedAddress;
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}
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for (i = 0; i < groups.length; i++) {
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|
if (groups[i] !== 'compact') {
|
|
groups[i] = parseInt(groups[i], 16).toString(16);
|
|
}
|
|
}
|
|
let correct = groups.join(':');
|
|
correct = correct.replace(/^compact$/, '::');
|
|
correct = correct.replace(/^compact|compact$/, ':');
|
|
correct = correct.replace(/compact/, '');
|
|
return correct;
|
|
}
|
|
/**
|
|
* Return a zero-padded base-2 string representation of the address
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {String}
|
|
* @example
|
|
* var address = new Address6('2001:4860:4001:803::1011');
|
|
* address.binaryZeroPad();
|
|
* // '0010000000000001010010000110000001000000000000010000100000000011
|
|
* // 0000000000000000000000000000000000000000000000000001000000010001'
|
|
*/
|
|
binaryZeroPad() {
|
|
return this.bigInteger().toString(2).padStart(constants6.BITS, '0');
|
|
}
|
|
// TODO: Improve the semantics of this helper function
|
|
parse4in6(address) {
|
|
const groups = address.split(':');
|
|
const lastGroup = groups.slice(-1)[0];
|
|
const address4 = lastGroup.match(constants4.RE_ADDRESS);
|
|
if (address4) {
|
|
this.parsedAddress4 = address4[0];
|
|
this.address4 = new ipv4_1.Address4(this.parsedAddress4);
|
|
for (let i = 0; i < this.address4.groups; i++) {
|
|
if (/^0[0-9]+/.test(this.address4.parsedAddress[i])) {
|
|
throw new address_error_1.AddressError("IPv4 addresses can't have leading zeroes.", address.replace(constants4.RE_ADDRESS, this.address4.parsedAddress.map(spanLeadingZeroes4).join('.')));
|
|
}
|
|
}
|
|
this.v4 = true;
|
|
groups[groups.length - 1] = this.address4.toGroup6();
|
|
address = groups.join(':');
|
|
}
|
|
return address;
|
|
}
|
|
// TODO: Make private?
|
|
parse(address) {
|
|
address = this.parse4in6(address);
|
|
const badCharacters = address.match(constants6.RE_BAD_CHARACTERS);
|
|
if (badCharacters) {
|
|
throw new address_error_1.AddressError((0, sprintf_js_1.sprintf)('Bad character%s detected in address: %s', badCharacters.length > 1 ? 's' : '', badCharacters.join('')), address.replace(constants6.RE_BAD_CHARACTERS, '<span class="parse-error">$1</span>'));
|
|
}
|
|
const badAddress = address.match(constants6.RE_BAD_ADDRESS);
|
|
if (badAddress) {
|
|
throw new address_error_1.AddressError((0, sprintf_js_1.sprintf)('Address failed regex: %s', badAddress.join('')), address.replace(constants6.RE_BAD_ADDRESS, '<span class="parse-error">$1</span>'));
|
|
}
|
|
let groups = [];
|
|
const halves = address.split('::');
|
|
if (halves.length === 2) {
|
|
let first = halves[0].split(':');
|
|
let last = halves[1].split(':');
|
|
if (first.length === 1 && first[0] === '') {
|
|
first = [];
|
|
}
|
|
if (last.length === 1 && last[0] === '') {
|
|
last = [];
|
|
}
|
|
const remaining = this.groups - (first.length + last.length);
|
|
if (!remaining) {
|
|
throw new address_error_1.AddressError('Error parsing groups');
|
|
}
|
|
this.elidedGroups = remaining;
|
|
this.elisionBegin = first.length;
|
|
this.elisionEnd = first.length + this.elidedGroups;
|
|
groups = groups.concat(first);
|
|
for (let i = 0; i < remaining; i++) {
|
|
groups.push('0');
|
|
}
|
|
groups = groups.concat(last);
|
|
}
|
|
else if (halves.length === 1) {
|
|
groups = address.split(':');
|
|
this.elidedGroups = 0;
|
|
}
|
|
else {
|
|
throw new address_error_1.AddressError('Too many :: groups found');
|
|
}
|
|
groups = groups.map((group) => (0, sprintf_js_1.sprintf)('%x', parseInt(group, 16)));
|
|
if (groups.length !== this.groups) {
|
|
throw new address_error_1.AddressError('Incorrect number of groups found');
|
|
}
|
|
return groups;
|
|
}
|
|
/**
|
|
* Return the canonical form of the address
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {String}
|
|
*/
|
|
canonicalForm() {
|
|
return this.parsedAddress.map(paddedHex).join(':');
|
|
}
|
|
/**
|
|
* Return the decimal form of the address
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {String}
|
|
*/
|
|
decimal() {
|
|
return this.parsedAddress.map((n) => (0, sprintf_js_1.sprintf)('%05d', parseInt(n, 16))).join(':');
|
|
}
|
|
/**
|
|
* Return the address as a BigInteger
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {BigInteger}
|
|
*/
|
|
bigInteger() {
|
|
return new jsbn_1.BigInteger(this.parsedAddress.map(paddedHex).join(''), 16);
|
|
}
|
|
/**
|
|
* Return the last two groups of this address as an IPv4 address string
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {Address4}
|
|
* @example
|
|
* var address = new Address6('2001:4860:4001::1825:bf11');
|
|
* address.to4().correctForm(); // '24.37.191.17'
|
|
*/
|
|
to4() {
|
|
const binary = this.binaryZeroPad().split('');
|
|
return ipv4_1.Address4.fromHex(new jsbn_1.BigInteger(binary.slice(96, 128).join(''), 2).toString(16));
|
|
}
|
|
/**
|
|
* Return the v4-in-v6 form of the address
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {String}
|
|
*/
|
|
to4in6() {
|
|
const address4 = this.to4();
|
|
const address6 = new Address6(this.parsedAddress.slice(0, 6).join(':'), 6);
|
|
const correct = address6.correctForm();
|
|
let infix = '';
|
|
if (!/:$/.test(correct)) {
|
|
infix = ':';
|
|
}
|
|
return correct + infix + address4.address;
|
|
}
|
|
/**
|
|
* Return an object containing the Teredo properties of the address
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {Object}
|
|
*/
|
|
inspectTeredo() {
|
|
/*
|
|
- Bits 0 to 31 are set to the Teredo prefix (normally 2001:0000::/32).
|
|
- Bits 32 to 63 embed the primary IPv4 address of the Teredo server that
|
|
is used.
|
|
- Bits 64 to 79 can be used to define some flags. Currently only the
|
|
higher order bit is used; it is set to 1 if the Teredo client is
|
|
located behind a cone NAT, 0 otherwise. For Microsoft's Windows Vista
|
|
and Windows Server 2008 implementations, more bits are used. In those
|
|
implementations, the format for these 16 bits is "CRAAAAUG AAAAAAAA",
|
|
where "C" remains the "Cone" flag. The "R" bit is reserved for future
|
|
use. The "U" bit is for the Universal/Local flag (set to 0). The "G" bit
|
|
is Individual/Group flag (set to 0). The A bits are set to a 12-bit
|
|
randomly generated number chosen by the Teredo client to introduce
|
|
additional protection for the Teredo node against IPv6-based scanning
|
|
attacks.
|
|
- Bits 80 to 95 contains the obfuscated UDP port number. This is the
|
|
port number that is mapped by the NAT to the Teredo client with all
|
|
bits inverted.
|
|
- Bits 96 to 127 contains the obfuscated IPv4 address. This is the
|
|
public IPv4 address of the NAT with all bits inverted.
|
|
*/
|
|
const prefix = this.getBitsBase16(0, 32);
|
|
const udpPort = this.getBits(80, 96).xor(new jsbn_1.BigInteger('ffff', 16)).toString();
|
|
const server4 = ipv4_1.Address4.fromHex(this.getBitsBase16(32, 64));
|
|
const client4 = ipv4_1.Address4.fromHex(this.getBits(96, 128).xor(new jsbn_1.BigInteger('ffffffff', 16)).toString(16));
|
|
const flags = this.getBits(64, 80);
|
|
const flagsBase2 = this.getBitsBase2(64, 80);
|
|
const coneNat = flags.testBit(15);
|
|
const reserved = flags.testBit(14);
|
|
const groupIndividual = flags.testBit(8);
|
|
const universalLocal = flags.testBit(9);
|
|
const nonce = new jsbn_1.BigInteger(flagsBase2.slice(2, 6) + flagsBase2.slice(8, 16), 2).toString(10);
|
|
return {
|
|
prefix: (0, sprintf_js_1.sprintf)('%s:%s', prefix.slice(0, 4), prefix.slice(4, 8)),
|
|
server4: server4.address,
|
|
client4: client4.address,
|
|
flags: flagsBase2,
|
|
coneNat,
|
|
microsoft: {
|
|
reserved,
|
|
universalLocal,
|
|
groupIndividual,
|
|
nonce,
|
|
},
|
|
udpPort,
|
|
};
|
|
}
|
|
/**
|
|
* Return an object containing the 6to4 properties of the address
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {Object}
|
|
*/
|
|
inspect6to4() {
|
|
/*
|
|
- Bits 0 to 15 are set to the 6to4 prefix (2002::/16).
|
|
- Bits 16 to 48 embed the IPv4 address of the 6to4 gateway that is used.
|
|
*/
|
|
const prefix = this.getBitsBase16(0, 16);
|
|
const gateway = ipv4_1.Address4.fromHex(this.getBitsBase16(16, 48));
|
|
return {
|
|
prefix: (0, sprintf_js_1.sprintf)('%s', prefix.slice(0, 4)),
|
|
gateway: gateway.address,
|
|
};
|
|
}
|
|
/**
|
|
* Return a v6 6to4 address from a v6 v4inv6 address
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {Address6}
|
|
*/
|
|
to6to4() {
|
|
if (!this.is4()) {
|
|
return null;
|
|
}
|
|
const addr6to4 = [
|
|
'2002',
|
|
this.getBitsBase16(96, 112),
|
|
this.getBitsBase16(112, 128),
|
|
'',
|
|
'/16',
|
|
].join(':');
|
|
return new Address6(addr6to4);
|
|
}
|
|
/**
|
|
* Return a byte array
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {Array}
|
|
*/
|
|
toByteArray() {
|
|
const byteArray = this.bigInteger().toByteArray();
|
|
// work around issue where `toByteArray` returns a leading 0 element
|
|
if (byteArray.length === 17 && byteArray[0] === 0) {
|
|
return byteArray.slice(1);
|
|
}
|
|
return byteArray;
|
|
}
|
|
/**
|
|
* Return an unsigned byte array
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {Array}
|
|
*/
|
|
toUnsignedByteArray() {
|
|
return this.toByteArray().map(unsignByte);
|
|
}
|
|
/**
|
|
* Convert a byte array to an Address6 object
|
|
* @memberof Address6
|
|
* @static
|
|
* @returns {Address6}
|
|
*/
|
|
static fromByteArray(bytes) {
|
|
return this.fromUnsignedByteArray(bytes.map(unsignByte));
|
|
}
|
|
/**
|
|
* Convert an unsigned byte array to an Address6 object
|
|
* @memberof Address6
|
|
* @static
|
|
* @returns {Address6}
|
|
*/
|
|
static fromUnsignedByteArray(bytes) {
|
|
const BYTE_MAX = new jsbn_1.BigInteger('256', 10);
|
|
let result = new jsbn_1.BigInteger('0', 10);
|
|
let multiplier = new jsbn_1.BigInteger('1', 10);
|
|
for (let i = bytes.length - 1; i >= 0; i--) {
|
|
result = result.add(multiplier.multiply(new jsbn_1.BigInteger(bytes[i].toString(10), 10)));
|
|
multiplier = multiplier.multiply(BYTE_MAX);
|
|
}
|
|
return Address6.fromBigInteger(result);
|
|
}
|
|
/**
|
|
* Returns true if the address is in the canonical form, false otherwise
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {boolean}
|
|
*/
|
|
isCanonical() {
|
|
return this.addressMinusSuffix === this.canonicalForm();
|
|
}
|
|
/**
|
|
* Returns true if the address is a link local address, false otherwise
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {boolean}
|
|
*/
|
|
isLinkLocal() {
|
|
// Zeroes are required, i.e. we can't check isInSubnet with 'fe80::/10'
|
|
if (this.getBitsBase2(0, 64) ===
|
|
'1111111010000000000000000000000000000000000000000000000000000000') {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
/**
|
|
* Returns true if the address is a multicast address, false otherwise
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {boolean}
|
|
*/
|
|
isMulticast() {
|
|
return this.getType() === 'Multicast';
|
|
}
|
|
/**
|
|
* Returns true if the address is a v4-in-v6 address, false otherwise
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {boolean}
|
|
*/
|
|
is4() {
|
|
return this.v4;
|
|
}
|
|
/**
|
|
* Returns true if the address is a Teredo address, false otherwise
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {boolean}
|
|
*/
|
|
isTeredo() {
|
|
return this.isInSubnet(new Address6('2001::/32'));
|
|
}
|
|
/**
|
|
* Returns true if the address is a 6to4 address, false otherwise
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {boolean}
|
|
*/
|
|
is6to4() {
|
|
return this.isInSubnet(new Address6('2002::/16'));
|
|
}
|
|
/**
|
|
* Returns true if the address is a loopback address, false otherwise
|
|
* @memberof Address6
|
|
* @instance
|
|
* @returns {boolean}
|
|
*/
|
|
isLoopback() {
|
|
return this.getType() === 'Loopback';
|
|
}
|
|
// #endregion
|
|
// #region HTML
|
|
/**
|
|
* @returns {String} the address in link form with a default port of 80
|
|
*/
|
|
href(optionalPort) {
|
|
if (optionalPort === undefined) {
|
|
optionalPort = '';
|
|
}
|
|
else {
|
|
optionalPort = (0, sprintf_js_1.sprintf)(':%s', optionalPort);
|
|
}
|
|
return (0, sprintf_js_1.sprintf)('http://[%s]%s/', this.correctForm(), optionalPort);
|
|
}
|
|
/**
|
|
* @returns {String} a link suitable for conveying the address via a URL hash
|
|
*/
|
|
link(options) {
|
|
if (!options) {
|
|
options = {};
|
|
}
|
|
if (options.className === undefined) {
|
|
options.className = '';
|
|
}
|
|
if (options.prefix === undefined) {
|
|
options.prefix = '/#address=';
|
|
}
|
|
if (options.v4 === undefined) {
|
|
options.v4 = false;
|
|
}
|
|
let formFunction = this.correctForm;
|
|
if (options.v4) {
|
|
formFunction = this.to4in6;
|
|
}
|
|
if (options.className) {
|
|
return (0, sprintf_js_1.sprintf)('<a href="%1$s%2$s" class="%3$s">%2$s</a>', options.prefix, formFunction.call(this), options.className);
|
|
}
|
|
return (0, sprintf_js_1.sprintf)('<a href="%1$s%2$s">%2$s</a>', options.prefix, formFunction.call(this));
|
|
}
|
|
/**
|
|
* Groups an address
|
|
* @returns {String}
|
|
*/
|
|
group() {
|
|
if (this.elidedGroups === 0) {
|
|
// The simple case
|
|
return helpers.simpleGroup(this.address).join(':');
|
|
}
|
|
assert(typeof this.elidedGroups === 'number');
|
|
assert(typeof this.elisionBegin === 'number');
|
|
// The elided case
|
|
const output = [];
|
|
const [left, right] = this.address.split('::');
|
|
if (left.length) {
|
|
output.push(...helpers.simpleGroup(left));
|
|
}
|
|
else {
|
|
output.push('');
|
|
}
|
|
const classes = ['hover-group'];
|
|
for (let i = this.elisionBegin; i < this.elisionBegin + this.elidedGroups; i++) {
|
|
classes.push((0, sprintf_js_1.sprintf)('group-%d', i));
|
|
}
|
|
output.push((0, sprintf_js_1.sprintf)('<span class="%s"></span>', classes.join(' ')));
|
|
if (right.length) {
|
|
output.push(...helpers.simpleGroup(right, this.elisionEnd));
|
|
}
|
|
else {
|
|
output.push('');
|
|
}
|
|
if (this.is4()) {
|
|
assert(this.address4 instanceof ipv4_1.Address4);
|
|
output.pop();
|
|
output.push(this.address4.groupForV6());
|
|
}
|
|
return output.join(':');
|
|
}
|
|
// #endregion
|
|
// #region Regular expressions
|
|
/**
|
|
* Generate a regular expression string that can be used to find or validate
|
|
* all variations of this address
|
|
* @memberof Address6
|
|
* @instance
|
|
* @param {boolean} substringSearch
|
|
* @returns {string}
|
|
*/
|
|
regularExpressionString(substringSearch = false) {
|
|
let output = [];
|
|
// TODO: revisit why this is necessary
|
|
const address6 = new Address6(this.correctForm());
|
|
if (address6.elidedGroups === 0) {
|
|
// The simple case
|
|
output.push((0, regular_expressions_1.simpleRegularExpression)(address6.parsedAddress));
|
|
}
|
|
else if (address6.elidedGroups === constants6.GROUPS) {
|
|
// A completely elided address
|
|
output.push((0, regular_expressions_1.possibleElisions)(constants6.GROUPS));
|
|
}
|
|
else {
|
|
// A partially elided address
|
|
const halves = address6.address.split('::');
|
|
if (halves[0].length) {
|
|
output.push((0, regular_expressions_1.simpleRegularExpression)(halves[0].split(':')));
|
|
}
|
|
assert(typeof address6.elidedGroups === 'number');
|
|
output.push((0, regular_expressions_1.possibleElisions)(address6.elidedGroups, halves[0].length !== 0, halves[1].length !== 0));
|
|
if (halves[1].length) {
|
|
output.push((0, regular_expressions_1.simpleRegularExpression)(halves[1].split(':')));
|
|
}
|
|
output = [output.join(':')];
|
|
}
|
|
if (!substringSearch) {
|
|
output = [
|
|
'(?=^|',
|
|
regular_expressions_1.ADDRESS_BOUNDARY,
|
|
'|[^\\w\\:])(',
|
|
...output,
|
|
')(?=[^\\w\\:]|',
|
|
regular_expressions_1.ADDRESS_BOUNDARY,
|
|
'|$)',
|
|
];
|
|
}
|
|
return output.join('');
|
|
}
|
|
/**
|
|
* Generate a regular expression that can be used to find or validate all
|
|
* variations of this address.
|
|
* @memberof Address6
|
|
* @instance
|
|
* @param {boolean} substringSearch
|
|
* @returns {RegExp}
|
|
*/
|
|
regularExpression(substringSearch = false) {
|
|
return new RegExp(this.regularExpressionString(substringSearch), 'i');
|
|
}
|
|
}
|
|
exports.Address6 = Address6;
|
|
//# sourceMappingURL=ipv6.js.map
|