source: node_modules/ip-address/dist/ipv4.js@ 81bc7da

finki-main main
Last change on this file since 81bc7da was 81bc7da, checked in by Klimentina Efremova <klimentina08642@…>, 3 months ago

Initial commit
  • Property mode set to 100644
File size: 11.2 KB
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1"use strict";
2/* eslint-disable no-param-reassign */
3var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
4 if (k2 === undefined) k2 = k;
5 var desc = Object.getOwnPropertyDescriptor(m, k);
6 if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
7 desc = { enumerable: true, get: function() { return m[k]; } };
8 }
9 Object.defineProperty(o, k2, desc);
10}) : (function(o, m, k, k2) {
11 if (k2 === undefined) k2 = k;
12 o[k2] = m[k];
13}));
14var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
15 Object.defineProperty(o, "default", { enumerable: true, value: v });
16}) : function(o, v) {
17 o["default"] = v;
18});
19var __importStar = (this && this.__importStar) || function (mod) {
20 if (mod && mod.__esModule) return mod;
21 var result = {};
22 if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
23 __setModuleDefault(result, mod);
24 return result;
25};
26Object.defineProperty(exports, "__esModule", { value: true });
27exports.Address4 = void 0;
28const common = __importStar(require("./common"));
29const constants = __importStar(require("./v4/constants"));
30const address_error_1 = require("./address-error");
31/**
32 * Represents an IPv4 address
33 * @class Address4
34 * @param {string} address - An IPv4 address string
35 */
36class Address4 {
37 constructor(address) {
38 this.groups = constants.GROUPS;
39 this.parsedAddress = [];
40 this.parsedSubnet = '';
41 this.subnet = '/32';
42 this.subnetMask = 32;
43 this.v4 = true;
44 /**
45 * Returns true if the address is correct, false otherwise
46 * @memberof Address4
47 * @instance
48 * @returns {Boolean}
49 */
50 this.isCorrect = common.isCorrect(constants.BITS);
51 /**
52 * Returns true if the given address is in the subnet of the current address
53 * @memberof Address4
54 * @instance
55 * @returns {boolean}
56 */
57 this.isInSubnet = common.isInSubnet;
58 this.address = address;
59 const subnet = constants.RE_SUBNET_STRING.exec(address);
60 if (subnet) {
61 this.parsedSubnet = subnet[0].replace('/', '');
62 this.subnetMask = parseInt(this.parsedSubnet, 10);
63 this.subnet = `/${this.subnetMask}`;
64 if (this.subnetMask < 0 || this.subnetMask > constants.BITS) {
65 throw new address_error_1.AddressError('Invalid subnet mask.');
66 }
67 address = address.replace(constants.RE_SUBNET_STRING, '');
68 }
69 this.addressMinusSuffix = address;
70 this.parsedAddress = this.parse(address);
71 }
72 static isValid(address) {
73 try {
74 // eslint-disable-next-line no-new
75 new Address4(address);
76 return true;
77 }
78 catch (e) {
79 return false;
80 }
81 }
82 /*
83 * Parses a v4 address
84 */
85 parse(address) {
86 const groups = address.split('.');
87 if (!address.match(constants.RE_ADDRESS)) {
88 throw new address_error_1.AddressError('Invalid IPv4 address.');
89 }
90 return groups;
91 }
92 /**
93 * Returns the correct form of an address
94 * @memberof Address4
95 * @instance
96 * @returns {String}
97 */
98 correctForm() {
99 return this.parsedAddress.map((part) => parseInt(part, 10)).join('.');
100 }
101 /**
102 * Converts a hex string to an IPv4 address object
103 * @memberof Address4
104 * @static
105 * @param {string} hex - a hex string to convert
106 * @returns {Address4}
107 */
108 static fromHex(hex) {
109 const padded = hex.replace(/:/g, '').padStart(8, '0');
110 const groups = [];
111 let i;
112 for (i = 0; i < 8; i += 2) {
113 const h = padded.slice(i, i + 2);
114 groups.push(parseInt(h, 16));
115 }
116 return new Address4(groups.join('.'));
117 }
118 /**
119 * Converts an integer into a IPv4 address object
120 * @memberof Address4
121 * @static
122 * @param {integer} integer - a number to convert
123 * @returns {Address4}
124 */
125 static fromInteger(integer) {
126 return Address4.fromHex(integer.toString(16));
127 }
128 /**
129 * Return an address from in-addr.arpa form
130 * @memberof Address4
131 * @static
132 * @param {string} arpaFormAddress - an 'in-addr.arpa' form ipv4 address
133 * @returns {Adress4}
134 * @example
135 * var address = Address4.fromArpa(42.2.0.192.in-addr.arpa.)
136 * address.correctForm(); // '192.0.2.42'
137 */
138 static fromArpa(arpaFormAddress) {
139 // remove ending ".in-addr.arpa." or just "."
140 const leader = arpaFormAddress.replace(/(\.in-addr\.arpa)?\.$/, '');
141 const address = leader.split('.').reverse().join('.');
142 return new Address4(address);
143 }
144 /**
145 * Converts an IPv4 address object to a hex string
146 * @memberof Address4
147 * @instance
148 * @returns {String}
149 */
150 toHex() {
151 return this.parsedAddress.map((part) => common.stringToPaddedHex(part)).join(':');
152 }
153 /**
154 * Converts an IPv4 address object to an array of bytes
155 * @memberof Address4
156 * @instance
157 * @returns {Array}
158 */
159 toArray() {
160 return this.parsedAddress.map((part) => parseInt(part, 10));
161 }
162 /**
163 * Converts an IPv4 address object to an IPv6 address group
164 * @memberof Address4
165 * @instance
166 * @returns {String}
167 */
168 toGroup6() {
169 const output = [];
170 let i;
171 for (i = 0; i < constants.GROUPS; i += 2) {
172 output.push(`${common.stringToPaddedHex(this.parsedAddress[i])}${common.stringToPaddedHex(this.parsedAddress[i + 1])}`);
173 }
174 return output.join(':');
175 }
176 /**
177 * Returns the address as a `bigint`
178 * @memberof Address4
179 * @instance
180 * @returns {bigint}
181 */
182 bigInt() {
183 return BigInt(`0x${this.parsedAddress.map((n) => common.stringToPaddedHex(n)).join('')}`);
184 }
185 /**
186 * Helper function getting start address.
187 * @memberof Address4
188 * @instance
189 * @returns {bigint}
190 */
191 _startAddress() {
192 return BigInt(`0b${this.mask() + '0'.repeat(constants.BITS - this.subnetMask)}`);
193 }
194 /**
195 * The first address in the range given by this address' subnet.
196 * Often referred to as the Network Address.
197 * @memberof Address4
198 * @instance
199 * @returns {Address4}
200 */
201 startAddress() {
202 return Address4.fromBigInt(this._startAddress());
203 }
204 /**
205 * The first host address in the range given by this address's subnet ie
206 * the first address after the Network Address
207 * @memberof Address4
208 * @instance
209 * @returns {Address4}
210 */
211 startAddressExclusive() {
212 const adjust = BigInt('1');
213 return Address4.fromBigInt(this._startAddress() + adjust);
214 }
215 /**
216 * Helper function getting end address.
217 * @memberof Address4
218 * @instance
219 * @returns {bigint}
220 */
221 _endAddress() {
222 return BigInt(`0b${this.mask() + '1'.repeat(constants.BITS - this.subnetMask)}`);
223 }
224 /**
225 * The last address in the range given by this address' subnet
226 * Often referred to as the Broadcast
227 * @memberof Address4
228 * @instance
229 * @returns {Address4}
230 */
231 endAddress() {
232 return Address4.fromBigInt(this._endAddress());
233 }
234 /**
235 * The last host address in the range given by this address's subnet ie
236 * the last address prior to the Broadcast Address
237 * @memberof Address4
238 * @instance
239 * @returns {Address4}
240 */
241 endAddressExclusive() {
242 const adjust = BigInt('1');
243 return Address4.fromBigInt(this._endAddress() - adjust);
244 }
245 /**
246 * Converts a BigInt to a v4 address object
247 * @memberof Address4
248 * @static
249 * @param {bigint} bigInt - a BigInt to convert
250 * @returns {Address4}
251 */
252 static fromBigInt(bigInt) {
253 return Address4.fromHex(bigInt.toString(16));
254 }
255 /**
256 * Convert a byte array to an Address4 object
257 * @memberof Address4
258 * @static
259 * @param {Array<number>} bytes - an array of 4 bytes (0-255)
260 * @returns {Address4}
261 */
262 static fromByteArray(bytes) {
263 if (bytes.length !== 4) {
264 throw new address_error_1.AddressError('IPv4 addresses require exactly 4 bytes');
265 }
266 // Validate that all bytes are within valid range (0-255)
267 for (let i = 0; i < bytes.length; i++) {
268 if (!Number.isInteger(bytes[i]) || bytes[i] < 0 || bytes[i] > 255) {
269 throw new address_error_1.AddressError('All bytes must be integers between 0 and 255');
270 }
271 }
272 return this.fromUnsignedByteArray(bytes);
273 }
274 /**
275 * Convert an unsigned byte array to an Address4 object
276 * @memberof Address4
277 * @static
278 * @param {Array<number>} bytes - an array of 4 unsigned bytes (0-255)
279 * @returns {Address4}
280 */
281 static fromUnsignedByteArray(bytes) {
282 if (bytes.length !== 4) {
283 throw new address_error_1.AddressError('IPv4 addresses require exactly 4 bytes');
284 }
285 const address = bytes.join('.');
286 return new Address4(address);
287 }
288 /**
289 * Returns the first n bits of the address, defaulting to the
290 * subnet mask
291 * @memberof Address4
292 * @instance
293 * @returns {String}
294 */
295 mask(mask) {
296 if (mask === undefined) {
297 mask = this.subnetMask;
298 }
299 return this.getBitsBase2(0, mask);
300 }
301 /**
302 * Returns the bits in the given range as a base-2 string
303 * @memberof Address4
304 * @instance
305 * @returns {string}
306 */
307 getBitsBase2(start, end) {
308 return this.binaryZeroPad().slice(start, end);
309 }
310 /**
311 * Return the reversed ip6.arpa form of the address
312 * @memberof Address4
313 * @param {Object} options
314 * @param {boolean} options.omitSuffix - omit the "in-addr.arpa" suffix
315 * @instance
316 * @returns {String}
317 */
318 reverseForm(options) {
319 if (!options) {
320 options = {};
321 }
322 const reversed = this.correctForm().split('.').reverse().join('.');
323 if (options.omitSuffix) {
324 return reversed;
325 }
326 return `${reversed}.in-addr.arpa.`;
327 }
328 /**
329 * Returns true if the given address is a multicast address
330 * @memberof Address4
331 * @instance
332 * @returns {boolean}
333 */
334 isMulticast() {
335 return this.isInSubnet(new Address4('224.0.0.0/4'));
336 }
337 /**
338 * Returns a zero-padded base-2 string representation of the address
339 * @memberof Address4
340 * @instance
341 * @returns {string}
342 */
343 binaryZeroPad() {
344 return this.bigInt().toString(2).padStart(constants.BITS, '0');
345 }
346 /**
347 * Groups an IPv4 address for inclusion at the end of an IPv6 address
348 * @returns {String}
349 */
350 groupForV6() {
351 const segments = this.parsedAddress;
352 return this.address.replace(constants.RE_ADDRESS, `<span class="hover-group group-v4 group-6">${segments
353 .slice(0, 2)
354 .join('.')}</span>.<span class="hover-group group-v4 group-7">${segments
355 .slice(2, 4)
356 .join('.')}</span>`);
357 }
358}
359exports.Address4 = Address4;
360//# sourceMappingURL=ipv4.js.map
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