Issue 4630/replace default gateway

lib/Server.js

@@ -379,11 +379,50 @@
   }
 
   /**
-   * @param {string} gateway
+   * @param {string} gatewayOrFamily or family
+   * @param {boolean} [isInternal=false] ip should be internal
    * @returns {string | undefined}
    */
-  static findIp(gateway) {
-    const gatewayIp = ipaddr.parse(gateway);
+  static findIp(gatewayOrFamily, isInternal = false) {
+    if (gatewayOrFamily === "v4" || gatewayOrFamily === "v6") {
+      let host;
+
+      Object.values(os.networkInterfaces())
+        .flatMap((networks) => networks ?? [])
+        .filter((network) => {
+          if (!network || !network.address) {
+            return false;
+          }
+
+          if (network.family !== `IP${gatewayOrFamily}`) {
+            return false;
+          }
+
+          if (network.internal !== isInternal) {
+            return false;
+          }
+
+          if (gatewayOrFamily === "v6") {
+            const range = ipaddr.parse(network.address).range();
+
+            if (range !== "ipv4Mapped" && range !== "uniqueLocal") {
+              return false;
+            }
+          }
+
+          return network.address;
+        })
+        .forEach((network) => {
+          host = network.address;
+          if (host.includes(":")) {
+            host = `[${host}]`;
+          }
+        });
+
+      return host;
+    }
+
+    const gatewayIp = ipaddr.parse(gatewayOrFamily);
 
     // Look for the matching interface in all local interfaces.
     for (const addresses of Object.values(os.networkInterfaces())) {
@@ -403,32 +442,22 @@
     }
   }
 
+  // TODO remove me in the next major release, we have `findIp`
   /**
    * @param {"v4" | "v6"} family
    * @returns {Promise<string | undefined>}
    */
   static async internalIP(family) {
-    try {
-      const { gateway } = await require("default-gateway")[family]();
-
-      return Server.findIp(gateway);
-    } catch {
-      // ignore
-    }
+    return Server.findIp(family);
   }
 
+  // TODO remove me in the next major release, we have `findIp`
   /**
    * @param {"v4" | "v6"} family
    * @returns {string | undefined}
    */
   static internalIPSync(family) {
-    try {
-      const { gateway } = require("default-gateway")[family].sync();
-
-      return Server.findIp(gateway);
-    } catch {
-      // ignore
-    }
+    return Server.findIp(family);
   }
 
   /**
@@ -437,15 +466,11 @@
    */
   static async getHostname(hostname) {
     if (hostname === "local-ip") {
-      return (
-        (await Server.internalIP("v4")) ||
-        (await Server.internalIP("v6")) ||
-        "0.0.0.0"
-      );
+      return Server.findIp("v4") || Server.findIp("v6") || "0.0.0.0";
     } else if (hostname === "local-ipv4") {
-      return (await Server.internalIP("v4")) || "0.0.0.0";
+      return Server.findIp("v4") || "0.0.0.0";
     } else if (hostname === "local-ipv6") {
-      return (await Server.internalIP("v6")) || "::";
+      return Server.findIp("v6") || "::";
     }
 
     return hostname;
@@ -2777,13 +2802,13 @@
       if (parsedIP.range() === "unspecified") {
         localhost = prettyPrintURL("localhost");
 
-        const networkIPv4 = await Server.internalIP("v4");
+        const networkIPv4 = Server.findIp("v4");
 
         if (networkIPv4) {
           networkUrlIPv4 = prettyPrintURL(networkIPv4);
         }
 
-        const networkIPv6 = await Server.internalIP("v6");
+        const networkIPv6 = Server.findIp("v6");
 
         if (networkIPv6) {
           networkUrlIPv6 = prettyPrintURL(networkIPv6);

package.json

@@ -59,7 +59,6 @@
     "colorette": "^2.0.10",
     "compression": "^1.7.4",
     "connect-history-api-fallback": "^2.0.0",
-    "default-gateway": "^6.0.3",
     "express": "^4.19.2",
     "graceful-fs": "^4.2.6",
     "html-entities": "^2.4.0",
@@ -87,7 +86,6 @@
     "@commitlint/cli": "^19.0.3",
     "@commitlint/config-conventional": "^19.0.3",
     "@types/compression": "^1.7.2",
-    "@types/default-gateway": "^3.0.1",
     "@types/node": "^20.11.16",
     "@types/node-forge": "^1.3.1",
     "@types/sockjs-client": "^1.5.1",
@@ -128,7 +126,7 @@
     "style-loader": "^4.0.0",
     "supertest": "^6.1.3",
     "tcp-port-used": "^1.0.2",
-    "typescript": "^5.3.3",
+    "typescript": "^5.5.4",
     "wait-for-expect": "^3.0.2",
     "webpack": "^5.91.0",
     "webpack-cli": "^5.0.1",

test/cli/host-option.test.js

@@ -4,8 +4,8 @@ const { testBin, normalizeStderr } = require("../helpers/test-bin");
 const port = require("../ports-map")["cli-host"];
 const Server = require("../../lib/Server");
 
-const localIPv4 = Server.internalIPSync("v4");
-const localIPv6 = Server.internalIPSync("v6");
+const localIPv4 = Server.findIp("v4");
+const localIPv6 = Server.findIp("v6");
 
 describe('"host" CLI option', () => {
   it('should work using "--host 0.0.0.0" (IPv4)', async () => {

test/e2e/host.test.js

@@ -6,8 +6,8 @@ const config = require("../fixtures/client-config/webpack.config");
 const runBrowser = require("../helpers/run-browser");
 const port = require("../ports-map").host;
 
-const ipv4 = Server.internalIPSync("v4");
-const ipv6 = Server.internalIPSync("v6");
+const ipv4 = Server.findIp("v4");
+const ipv6 = Server.findIp("v6");
 // macos requires root for using ip v6
 const isMacOS = process.platform === "darwin";