Change loopback regex to avoid valid addresses

Author: ospfranco

constants.ts

@@ -39,11 +39,30 @@ export const CONSTANTS = {
 
   REGEX_LOOPBACK: new RegExp(
     "^" +
-      "(?:(?:10|127)(?:\\.\\d{1,3}){3})" +
+      // Loopback: 127.0.0.0 - 127.255.255.255
+      "(?:127(?:\\.\\d{1,3}){3})" +
       "|" +
-      "(?:(?:169\\.254|192\\.168|192\\.0)(?:\\.\\d{1,3}){2})" +
+      // Private Class A: 10.0.0.0 - 10.255.255.255
+      "(?:10(?:\\.\\d{1,3}){3})" +
       "|" +
+      // Private Class B: 172.16.0.0 - 172.31.255.255
       "(?:172\\.(?:1[6-9]|2\\d|3[0-1])(?:\\.\\d{1,3}){2})" +
+      "|" +
+      // Private Class C: 192.168.0.0 - 192.168.255.255
+      "(?:192\\.168(?:\\.\\d{1,3}){2})" +
+      "|" +
+      // Link-local: 169.254.0.0 - 169.254.255.255
+      "(?:169\\.254(?:\\.\\d{1,3}){2})" +
+      "|" +
+      // Documentation: 192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24
+      "(?:192\\.0\\.2(?:\\.\\d{1,3}){1})" +
+      "|" +
+      "(?:198\\.51\\.100(?:\\.\\d{1,3}){1})" +
+      "|" +
+      "(?:203\\.0\\.113(?:\\.\\d{1,3}){1})" +
+      "|" +
+      // Carrier-Grade NAT (CGNAT): 100.64.0.0 - 100.127.255.255
+      "(?:100\\.(?:6[4-9]|[7-9]\\d|1[0-1]\\d)(?:\\.\\d{1,3}){2})" +
       "$",
     "i"
   ),

jest.config.js

@@ -2,4 +2,5 @@ module.exports = {
   preset: `ts-jest`,
   testEnvironment: `node`,
   globals: { "ts-jest": { diagnostics: false } },
+  testPathIgnorePatterns: ["/build/"],
 };