/ cloudformation-templates / node_modules / aws-cdk / node_modules / pac-resolver / dist / isInNet.js
isInNet.js
1 "use strict"; 2 /** 3 * Module dependencies. 4 */ 5 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { 6 function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } 7 return new (P || (P = Promise))(function (resolve, reject) { 8 function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } 9 function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } 10 function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); } 11 step((generator = generator.apply(thisArg, _arguments || [])).next()); 12 }); 13 }; 14 Object.defineProperty(exports, "__esModule", { value: true }); 15 const netmask_1 = require("netmask"); 16 const util_1 = require("./util"); 17 /** 18 * True iff the IP address of the host matches the specified IP address pattern. 19 * 20 * Pattern and mask specification is done the same way as for SOCKS configuration. 21 * 22 * Examples: 23 * 24 * ``` js 25 * isInNet(host, "198.95.249.79", "255.255.255.255") 26 * // is true iff the IP address of host matches exactly 198.95.249.79. 27 * 28 * isInNet(host, "198.95.0.0", "255.255.0.0") 29 * // is true iff the IP address of the host matches 198.95.*.*. 30 * ``` 31 * 32 * @param {String} host a DNS hostname, or IP address. If a hostname is passed, 33 * it will be resoved into an IP address by this function. 34 * @param {String} pattern an IP address pattern in the dot-separated format mask. 35 * @param {String} mask for the IP address pattern informing which parts of the 36 * IP address should be matched against. 0 means ignore, 255 means match. 37 * @return {Boolean} 38 */ 39 function isInNet(host, pattern, mask) { 40 return __awaiter(this, void 0, void 0, function* () { 41 const family = 4; 42 try { 43 const ip = yield util_1.dnsLookup(host, { family }); 44 if (typeof ip === 'string') { 45 const netmask = new netmask_1.Netmask(pattern, mask); 46 return netmask.contains(ip); 47 } 48 } 49 catch (err) { } 50 return false; 51 }); 52 } 53 exports.default = isInNet; 54 //# sourceMappingURL=isInNet.js.map