node_modules ignore

server/node_modules/@pmmmwh/react-refresh-webpack-plugin/sockets/utils/getWDSMetadata.js

@@ -0,0 +1,44 @@
+/**
+ * @typedef {Object} WDSMetaObj
+ * @property {boolean} enforceWs
+ * @property {number} version
+ */
+
+/**
+ * Derives WDS metadata from a compatible socket client.
+ * @param {Function} SocketClient A WDS socket client (SockJS/WebSocket).
+ * @returns {WDSMetaObj} The parsed WDS metadata object.
+ */
+function getWDSMetadata(SocketClient) {
+  let enforceWs = false;
+  if (
+    typeof SocketClient.name !== 'undefined' &&
+    SocketClient.name !== null &&
+    SocketClient.name.toLowerCase().includes('websocket')
+  ) {
+    enforceWs = true;
+  }
+
+  let version;
+  // WDS versions <=3.5.0
+  if (!('onMessage' in SocketClient.prototype)) {
+    version = 3;
+  } else {
+    // WDS versions >=3.5.0 <4
+    if (
+      'getClientPath' in SocketClient ||
+      Object.getPrototypeOf(SocketClient).name === 'BaseClient'
+    ) {
+      version = 3;
+    } else {
+      version = 4;
+    }
+  }
+
+  return {
+    enforceWs: enforceWs,
+    version: version,
+  };
+}
+
+module.exports = getWDSMetadata;