Add Windows named pipe support for client

lib/websocket.js

@@ -466,10 +466,33 @@ function initAsClient(websocket, address, protocols, options) {
   }
 
   let parsedUrl;
+  let isWinPipe;
 
   if (address instanceof URL) {
     parsedUrl = address;
     websocket.url = address.href;
+  } else if ((isWinPipe = /^ws\+unix:\/\/\\\\[.?]\\pipe\\/.test(address))) {
+    let pathname = address.slice(10);
+    const index = pathname.indexOf('?', 9);
+    let search = '';
+
+    if (index !== -1) {
+      search = pathname.slice(index);
+      pathname = pathname.slice(0, index);
+    }
+
+    parsedUrl = {
+      protocol: 'ws+unix:',
+      hostname: '',
+      port: '',
+      host: '',
+      origin: '',
+      pathname,
+      search,
+      hash: '',
+      username: '',
+      password: ''
+    };
   } else {
     parsedUrl = new URL(address);
     websocket.url = address;
@@ -528,7 +551,12 @@ function initAsClient(websocket, address, protocols, options) {
     opts.auth = `${parsedUrl.username}:${parsedUrl.password}`;
   }
 
-  if (isUnixSocket) {
+  if (isWinPipe) {
+    const index = opts.path.indexOf(':', 11);
+
+    opts.socketPath = index === -1 ? opts.path : opts.path.slice(0, index);
+    opts.path = index === -1 ? '' : opts.path.slice(index + 1);
+  } else if (isUnixSocket) {
     const parts = opts.path.split(':');
 
     opts.socketPath = parts[0];

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ws",
-  "version": "7.3.1",
+  "version": "7.3.2",
   "description": "Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js",
   "keywords": [
     "HyBi",

test/websocket-server.test.js

@@ -115,20 +115,16 @@ describe('WebSocketServer', () => {
     });
 
     it('uses a precreated http server listening on unix socket', function (done) {
-      //
-      // Skip this test on Windows. The URL parser:
-      //
-      // - Throws an error if the named pipe uses backward slashes.
-      // - Incorrectly parses the path if the named pipe uses forward slashes.
-      //
-      if (process.platform === 'win32') return this.skip();
-
       const server = http.createServer();
-      const sockPath = path.join(
+      let sockPath = path.join(
         os.tmpdir(),
         `ws.${crypto.randomBytes(16).toString('hex')}.sock`
       );
 
+      if (process.platform === 'win32') {
+        sockPath = '\\\\?\\pipe\\' + sockPath;
+      }
+
       server.listen(sockPath, () => {
         const wss = new WebSocket.Server({ server });