Init. Map does not function and only working on backend at the moment.

node_modules/socket.io-parser/build/cjs/binary.js

@@ -0,0 +1,88 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.reconstructPacket = exports.deconstructPacket = void 0;
+const is_binary_js_1 = require("./is-binary.js");
+/**
+ * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.
+ *
+ * @param {Object} packet - socket.io event packet
+ * @return {Object} with deconstructed packet and list of buffers
+ * @public
+ */
+function deconstructPacket(packet) {
+    const buffers = [];
+    const packetData = packet.data;
+    const pack = packet;
+    pack.data = _deconstructPacket(packetData, buffers);
+    pack.attachments = buffers.length; // number of binary 'attachments'
+    return { packet: pack, buffers: buffers };
+}
+exports.deconstructPacket = deconstructPacket;
+function _deconstructPacket(data, buffers) {
+    if (!data)
+        return data;
+    if ((0, is_binary_js_1.isBinary)(data)) {
+        const placeholder = { _placeholder: true, num: buffers.length };
+        buffers.push(data);
+        return placeholder;
+    }
+    else if (Array.isArray(data)) {
+        const newData = new Array(data.length);
+        for (let i = 0; i < data.length; i++) {
+            newData[i] = _deconstructPacket(data[i], buffers);
+        }
+        return newData;
+    }
+    else if (typeof data === "object" && !(data instanceof Date)) {
+        const newData = {};
+        for (const key in data) {
+            if (Object.prototype.hasOwnProperty.call(data, key)) {
+                newData[key] = _deconstructPacket(data[key], buffers);
+            }
+        }
+        return newData;
+    }
+    return data;
+}
+/**
+ * Reconstructs a binary packet from its placeholder packet and buffers
+ *
+ * @param {Object} packet - event packet with placeholders
+ * @param {Array} buffers - binary buffers to put in placeholder positions
+ * @return {Object} reconstructed packet
+ * @public
+ */
+function reconstructPacket(packet, buffers) {
+    packet.data = _reconstructPacket(packet.data, buffers);
+    delete packet.attachments; // no longer useful
+    return packet;
+}
+exports.reconstructPacket = reconstructPacket;
+function _reconstructPacket(data, buffers) {
+    if (!data)
+        return data;
+    if (data && data._placeholder === true) {
+        const isIndexValid = typeof data.num === "number" &&
+            data.num >= 0 &&
+            data.num < buffers.length;
+        if (isIndexValid) {
+            return buffers[data.num]; // appropriate buffer (should be natural order anyway)
+        }
+        else {
+            throw new Error("illegal attachments");
+        }
+    }
+    else if (Array.isArray(data)) {
+        for (let i = 0; i < data.length; i++) {
+            data[i] = _reconstructPacket(data[i], buffers);
+        }
+    }
+    else if (typeof data === "object") {
+        for (const key in data) {
+            if (Object.prototype.hasOwnProperty.call(data, key)) {
+                data[key] = _reconstructPacket(data[key], buffers);
+            }
+        }
+    }
+    return data;
+}