v1.2.2 - Fix network error on background, auto-retry streaming with reconnect

node_modules/engine.io/build/transports-uws/websocket.js

@@ -0,0 +1,73 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.WebSocket = void 0;
+const transport_1 = require("../transport");
+const debug_1 = require("debug");
+const debug = (0, debug_1.default)("engine:ws");
+class WebSocket extends transport_1.Transport {
+    /**
+     * WebSocket transport
+     *
+     * @param req
+     */
+    constructor(req) {
+        super(req);
+        this.writable = false;
+        this.perMessageDeflate = null;
+    }
+    /**
+     * Transport name
+     */
+    get name() {
+        return "websocket";
+    }
+    /**
+     * Advertise upgrade support.
+     */
+    get handlesUpgrades() {
+        return true;
+    }
+    /**
+     * Writes a packet payload.
+     *
+     * @param {Array} packets
+     * @private
+     */
+    send(packets) {
+        this.writable = false;
+        for (let i = 0; i < packets.length; i++) {
+            const packet = packets[i];
+            const isLast = i + 1 === packets.length;
+            const send = (data) => {
+                const isBinary = typeof data !== "string";
+                const compress = this.perMessageDeflate &&
+                    Buffer.byteLength(data) > this.perMessageDeflate.threshold;
+                debug('writing "%s"', data);
+                this.socket.send(data, isBinary, compress);
+                if (isLast) {
+                    this.emit("drain");
+                    this.writable = true;
+                    this.emit("ready");
+                }
+            };
+            if (packet.options && typeof packet.options.wsPreEncoded === "string") {
+                send(packet.options.wsPreEncoded);
+            }
+            else {
+                this.parser.encodePacket(packet, this.supportsBinary, send);
+            }
+        }
+    }
+    /**
+     * Closes the transport.
+     *
+     * @private
+     */
+    doClose(fn) {
+        debug("closing");
+        fn && fn();
+        // call fn first since socket.end() immediately emits a "close" event
+        this.socket.end();
+    }
+}
+exports.WebSocket = WebSocket;