archive

MovieNight/static/js/both.js

@@ -0,0 +1,66 @@
+/// <reference path="./jquery.js" />
+
+let konamiCode = ["ArrowUp", "ArrowUp", "ArrowDown", "ArrowDown", "ArrowLeft", "ArrowRight", "ArrowLeft", "ArrowRight", "b", "a"]
+let lastKeys = []
+let devKeys = false;
+
+// Make this on all pages so video page also doesn't do this
+$(document).on("keydown", function (e) {
+    lastKeys.push(e);
+    if (lastKeys.length > 10) {
+        lastKeys.shift();
+    }
+
+    if (devKeys) {
+        let modifiedLastKeys = []
+        lastKeys.forEach((e) => {
+            switch (e.key) {
+                case " ":
+                    modifiedLastKeys.push(`Space - ${e.keyCode}`);
+                    break;
+                default:
+                    modifiedLastKeys.push(`${e.key} - ${e.keyCode}`);
+                    break;
+            }
+        })
+        $("#devKeys").html(`'${modifiedLastKeys.join("', '")}'`);
+    }
+
+    if (e.which === 8 && !$(e.target).is("input, textarea")) {
+        e.preventDefault();
+    }
+
+    checkKonami(e);
+});
+
+
+function checkKonami(e) {
+    if (lastKeys.length === konamiCode.length) {
+        for (let i = 0; i < lastKeys.length; i++) {
+            if (lastKeys[i].key != konamiCode[i]) {
+                return;
+            }
+        }
+        $("#remote").css("display", "block");
+    }
+}
+
+function flipRemote() {
+    $("#remote").attr("src", "/static/img/remote_active.png");
+    setTimeout(() => {
+        $("#remote").attr("src", "/static/img/remote.png");
+    }, Math.round(Math.random() * 10000) + 1000);
+}
+
+function enableDebug() {
+    devKeys = true;
+    $("#devKeys").css("display", "block");
+}
+
+/*
+// Just add a / above to uncomment the block
+setTimeout(() => {
+    enableDebug();
+    alert("Comment this out. It shows the keys.");
+}, 150);
+//*/

MovieNight/static/js/chat.js

@@ -0,0 +1,288 @@
+/// <reference path="./both.js" />
+
+function getCookie(cname) {
+    var name = cname + "=";
+    var decodedCookie = decodeURIComponent(document.cookie);
+    var ca = decodedCookie.split(';');
+    for (var i = 0; i < ca.length; i++) {
+        var c = ca[i];
+        while (c.charAt(0) == ' ') {
+            c = c.substring(1);
+        }
+        if (c.indexOf(name) == 0) {
+            return c.substring(name.length, c.length);
+        }
+    }
+    return "";
+}
+
+function deleteCookie(cname) {
+    document.cookie = `${cname}=;expires=Thu, 01 Jan 1970 00:00:01 GMT`
+}
+
+function setPlaying(title, link) {
+    if (title !== "") {
+        $('#playing').text(title);
+        document.title = "Movie Night | " + title;
+    } else {
+        $('#playing').text("");
+        document.title = "Movie Night";
+    }
+
+    $('#playing').removeAttr('href');
+    if (link !== "") {
+        $('#playing').attr('href', link);
+    }
+}
+
+function startGo() {
+    if (!WebAssembly.instantiateStreaming) { // polyfill
+        WebAssembly.instantiateStreaming = async (resp, importObject) => {
+            const source = await (await resp).arrayBuffer();
+            return await WebAssembly.instantiate(source, importObject);
+        };
+    }
+
+    const go = new Go();
+    WebAssembly.instantiateStreaming(fetch("/static/main.wasm"), go.importObject).then((result) => {
+        go.run(result.instance);
+    }).then(() => {
+        $("#chatwindow").css("display", "grid");
+        $("#loadingFiles").css("display", "none");
+    }).catch((err) => {
+        console.error(err);
+    });
+}
+
+function getWsUri() {
+    port = window.location.port;
+    if (port == "") {
+      if (window.location.protocol == "http:") 
+         port = "80"
+      else
+         port = "443"
+    }
+    port = ":" + port;
+    proto = "ws://"
+    if (location.protocol == "https:") {
+        proto = "wss://"
+    }
+    return proto + window.location.hostname + port + "/ws";
+}
+
+let maxMessageCount = 0
+function appendMessages(msg) {
+    let msgs = $("#messages").find('div');
+
+    // let's just say that if the max count is less than 1, then the count is infinite
+    // the server side should take care of chaking max count ranges
+    if (msgs.length > maxMessageCount) {
+        msgs.first().remove();
+    }
+
+    $("#messages").append(msg);
+    $("#messages").children().last()[0].scrollIntoView({ block: "end" });
+}
+
+function purgeChat() {
+    $('#messages').empty()
+}
+
+inChat = false
+function openChat() {
+    console.log("chat opening");
+    $("#joinbox").css("display", "none");
+    $("#chat").css("display", "grid");
+    $("#hidden").css("display", "")
+    $("#msg").val("");
+    $("#msg").focus();
+    inChat = true;
+}
+
+function closeChat() {
+    console.log("chat closing");
+    $("#joinbox").css("display", "");
+    $("#chat").css("display", "none");
+    $("#hidden").css("display", "none")
+    setNotifyBox("That name was already used!");
+    inChat = false;
+}
+
+function websocketSend(data) {
+    if (ws.readyState == ws.OPEN) {
+        ws.send(data);
+    } else {
+        console.log("did not send data because websocket is not open", data);
+    }
+}
+
+function sendChat() {
+    sendMessage($("#msg").val());
+    $("#msg").val("");
+}
+
+function updateSuggestionCss(m) {
+    if ($("#suggestions").children().length > 0) {
+        $("#suggestions").css("bottom", $("#msg").outerHeight(true) - 1 + "px");
+        $("#suggestions").css("display", "");
+    } else {
+        $("#suggestions").css("display", "none");
+    }
+}
+
+function updateSuggestionScroll() {
+    let item = $("#suggestions .selectedName");
+    if (item.length !== 0) {
+        item[0].scrollIntoView({ block: "center" });
+    }
+}
+
+function setNotifyBox(msg = "") {
+    $("#notifyBox").html(msg);
+}
+
+// Button Wrapper Functions
+function auth() {
+    let pass = prompt("Enter pass");
+    if (pass != "" && pass !== null) {
+        sendMessage("/auth " + pass);
+    }
+}
+
+function nick() {
+    let nick = prompt("Enter new name");
+    if (nick != "" && nick !== null) {
+        sendMessage("/nick " + nick);
+    }
+}
+
+function help() {
+    sendMessage("/help");
+}
+
+function showColors(show) {
+    if (show === undefined) {
+        show = $("#hiddencolor").css("display") === "none";
+    }
+
+    $("#hiddencolor").css("display", show ? "block" : "");
+}
+
+function colorAsHex() {
+    let r = parseInt($("#colorRed").val()).toString(16).padStart(2, "0");
+    let g = parseInt($("#colorGreen").val()).toString(16).padStart(2, "0");
+    let b = parseInt($("#colorBlue").val()).toString(16).padStart(2, "0");
+    return `#${r}${g}${b}`
+}
+
+function updateColor() {
+    let r = $("#colorRed").val();
+    let g = $("#colorGreen").val();
+    let b = $("#colorBlue").val();
+
+    $("#colorRedLabel").text(r.padStart(3, "0"));
+    $("#colorGreenLabel").text(g.padStart(3, "0"));
+    $("#colorBlueLabel").text(b.padStart(3, "0"));
+
+    $("#colorName").css("color", `rgb(${r}, ${g}, ${b})`);
+
+    if (isValidColor(colorAsHex())) {
+        $("#colorWarning").text("");
+    } else {
+        $("#colorWarning").text("Unreadable Color");
+    }
+}
+
+function changeColor() {
+    if (isValidColor(colorAsHex())) {
+        sendColor(colorAsHex());
+    }
+}
+
+function colorSelectChange() {
+    let val = $("#colorSelect").val()
+    if (val !== "") {
+        sendColor(val);
+    }
+}
+
+function sendColor(color) {
+    sendMessage("/color " + color);
+    showColors(false);
+}
+
+function setTimestamp(v) {
+    showTimestamp(v)
+    document.cookie = "timestamp=" + v + "; expires=Fri, 31 Dec 9999 23:59:59 GMT";
+}
+
+// Get the websocket setup in a function so it can be recalled
+function setupWebSocket() {
+    ws = new WebSocket(getWsUri());
+    ws.onmessage = (m) => recieveMessage(m.data);
+    ws.onopen = () => console.log("Websocket Open");
+    ws.onclose = () => {
+        closeChat();
+        setNotifyBox("The connection to the server has closed. Please refresh page to connect again.");
+        $("#joinbox").css("display", "none");
+    }
+    ws.onerror = (e) => {
+        console.log("Websocket Error:", e);
+        e.target.close();
+    }
+}
+
+function setupEvents() {
+    $("#name").on({
+        keypress: (e) => {
+            if (e.originalEvent.keyCode == 13) {
+                $("#join").trigger("click");
+            }
+        }
+    });
+
+    $("#msg").on({
+        keypress: (e) => {
+            if (e.originalEvent.keyCode == 13 && !e.originalEvent.shiftKey) {
+                $("#send").trigger("click");
+                e.preventDefault();
+            }
+        },
+        keydown: (e) => {
+            if (processMessageKey(e)) {
+                e.preventDefault();
+            }
+        },
+        input: () => processMessage(),
+    });
+
+    $("#send").on({
+        click: () => $("#msg").focus(),
+    });
+
+    var suggestionObserver = new MutationObserver(
+        (mutations) => mutations.forEach(updateSuggestionCss)
+    ).observe($("#suggestions")[0], { childList: true });
+}
+
+function defaultValues() {
+    setTimeout(() => {
+        let timestamp = getCookie("timestamp")
+        if (timestamp !== "") {
+            showTimestamp(timestamp === "true")
+        }
+    }, 500);
+}
+
+window.addEventListener("onresize", updateSuggestionCss);
+
+window.addEventListener("load", () => {
+    setNotifyBox();
+    setupWebSocket();
+    startGo();
+    setupEvents();
+    defaultValues();
+
+    // Make sure name is focused on start
+    $("#name").focus();
+});

MovieNight/static/js/video.js

@@ -0,0 +1,17 @@
+/// <reference path="./both.js" />
+
+
+function initPlayer() {
+    if (flvjs.isSupported()) {
+        var videoElement = document.getElementById("videoElement");
+        var flvPlayer = flvjs.createPlayer({
+            type: "flv",
+            url: "/live"
+        });
+        flvPlayer.attachMediaElement(videoElement);
+        flvPlayer.load();
+        flvPlayer.play();
+    }
+}
+
+window.addEventListener("load", initPlayer);

MovieNight/static/js/wasm_exec.js

@@ -0,0 +1,533 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+(() => {
+	// Map multiple JavaScript environments to a single common API,
+	// preferring web standards over Node.js API.
+	//
+	// Environments considered:
+	// - Browsers
+	// - Node.js
+	// - Electron
+	// - Parcel
+
+	if (typeof global !== "undefined") {
+		// global already exists
+	} else if (typeof window !== "undefined") {
+		window.global = window;
+	} else if (typeof self !== "undefined") {
+		self.global = self;
+	} else {
+		throw new Error("cannot export Go (neither global, window nor self is defined)");
+	}
+
+	if (!global.require && typeof require !== "undefined") {
+		global.require = require;
+	}
+
+	if (!global.fs && global.require) {
+		global.fs = require("fs");
+	}
+
+	if (!global.fs) {
+		let outputBuf = "";
+		global.fs = {
+			constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused
+			writeSync(fd, buf) {
+				outputBuf += decoder.decode(buf);
+				const nl = outputBuf.lastIndexOf("\n");
+				if (nl != -1) {
+					console.log(outputBuf.substr(0, nl));
+					outputBuf = outputBuf.substr(nl + 1);
+				}
+				return buf.length;
+			},
+			write(fd, buf, offset, length, position, callback) {
+				if (offset !== 0 || length !== buf.length || position !== null) {
+					throw new Error("not implemented");
+				}
+				const n = this.writeSync(fd, buf);
+				callback(null, n);
+			},
+			open(path, flags, mode, callback) {
+				const err = new Error("not implemented");
+				err.code = "ENOSYS";
+				callback(err);
+			},
+			read(fd, buffer, offset, length, position, callback) {
+				const err = new Error("not implemented");
+				err.code = "ENOSYS";
+				callback(err);
+			},
+			fsync(fd, callback) {
+				callback(null);
+			},
+		};
+	}
+
+	if (!global.crypto) {
+		const nodeCrypto = require("crypto");
+		global.crypto = {
+			getRandomValues(b) {
+				nodeCrypto.randomFillSync(b);
+			},
+		};
+	}
+
+	if (!global.performance) {
+		global.performance = {
+			now() {
+				const [sec, nsec] = process.hrtime();
+				return sec * 1000 + nsec / 1000000;
+			},
+		};
+	}
+
+	if (!global.TextEncoder) {
+		global.TextEncoder = require("util").TextEncoder;
+	}
+
+	if (!global.TextDecoder) {
+		global.TextDecoder = require("util").TextDecoder;
+	}
+
+	// End of polyfills for common API.
+
+	const encoder = new TextEncoder("utf-8");
+	const decoder = new TextDecoder("utf-8");
+
+	global.Go = class {
+		constructor() {
+			this.argv = ["js"];
+			this.env = {};
+			this.exit = (code) => {
+				if (code !== 0) {
+					console.warn("exit code:", code);
+				}
+			};
+			this._exitPromise = new Promise((resolve) => {
+				this._resolveExitPromise = resolve;
+			});
+			this._pendingEvent = null;
+			this._scheduledTimeouts = new Map();
+			this._nextCallbackTimeoutID = 1;
+
+			const mem = () => {
+				// The buffer may change when requesting more memory.
+				return new DataView(this._inst.exports.mem.buffer);
+			}
+
+			const setInt64 = (addr, v) => {
+				mem().setUint32(addr + 0, v, true);
+				mem().setUint32(addr + 4, Math.floor(v / 4294967296), true);
+			}
+
+			const getInt64 = (addr) => {
+				const low = mem().getUint32(addr + 0, true);
+				const high = mem().getInt32(addr + 4, true);
+				return low + high * 4294967296;
+			}
+
+			const loadValue = (addr) => {
+				const f = mem().getFloat64(addr, true);
+				if (f === 0) {
+					return undefined;
+				}
+				if (!isNaN(f)) {
+					return f;
+				}
+
+				const id = mem().getUint32(addr, true);
+				return this._values[id];
+			}
+
+			const storeValue = (addr, v) => {
+				const nanHead = 0x7FF80000;
+
+				if (typeof v === "number") {
+					if (isNaN(v)) {
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 0, true);
+						return;
+					}
+					if (v === 0) {
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 1, true);
+						return;
+					}
+					mem().setFloat64(addr, v, true);
+					return;
+				}
+
+				switch (v) {
+					case undefined:
+						mem().setFloat64(addr, 0, true);
+						return;
+					case null:
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 2, true);
+						return;
+					case true:
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 3, true);
+						return;
+					case false:
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 4, true);
+						return;
+				}
+
+				let ref = this._refs.get(v);
+				if (ref === undefined) {
+					ref = this._values.length;
+					this._values.push(v);
+					this._refs.set(v, ref);
+				}
+				let typeFlag = 0;
+				switch (typeof v) {
+					case "string":
+						typeFlag = 1;
+						break;
+					case "symbol":
+						typeFlag = 2;
+						break;
+					case "function":
+						typeFlag = 3;
+						break;
+				}
+				mem().setUint32(addr + 4, nanHead | typeFlag, true);
+				mem().setUint32(addr, ref, true);
+			}
+
+			const loadSlice = (addr) => {
+				const array = getInt64(addr + 0);
+				const len = getInt64(addr + 8);
+				return new Uint8Array(this._inst.exports.mem.buffer, array, len);
+			}
+
+			const loadSliceOfValues = (addr) => {
+				const array = getInt64(addr + 0);
+				const len = getInt64(addr + 8);
+				const a = new Array(len);
+				for (let i = 0; i < len; i++) {
+					a[i] = loadValue(array + i * 8);
+				}
+				return a;
+			}
+
+			const loadString = (addr) => {
+				const saddr = getInt64(addr + 0);
+				const len = getInt64(addr + 8);
+				return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));
+			}
+
+			const timeOrigin = Date.now() - performance.now();
+			this.importObject = {
+				go: {
+					// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)
+					// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
+					// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
+					// This changes the SP, thus we have to update the SP used by the imported function.
+
+					// func wasmExit(code int32)
+					"runtime.wasmExit": (sp) => {
+						const code = mem().getInt32(sp + 8, true);
+						this.exited = true;
+						delete this._inst;
+						delete this._values;
+						delete this._refs;
+						this.exit(code);
+					},
+
+					// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
+					"runtime.wasmWrite": (sp) => {
+						const fd = getInt64(sp + 8);
+						const p = getInt64(sp + 16);
+						const n = mem().getInt32(sp + 24, true);
+						fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
+					},
+
+					// func nanotime() int64
+					"runtime.nanotime": (sp) => {
+						setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
+					},
+
+					// func walltime() (sec int64, nsec int32)
+					"runtime.walltime": (sp) => {
+						const msec = (new Date).getTime();
+						setInt64(sp + 8, msec / 1000);
+						mem().setInt32(sp + 16, (msec % 1000) * 1000000, true);
+					},
+
+					// func scheduleTimeoutEvent(delay int64) int32
+					"runtime.scheduleTimeoutEvent": (sp) => {
+						const id = this._nextCallbackTimeoutID;
+						this._nextCallbackTimeoutID++;
+						this._scheduledTimeouts.set(id, setTimeout(
+							() => {
+								this._resume();
+								while (this._scheduledTimeouts.has(id)) {
+									// for some reason Go failed to register the timeout event, log and try again
+									// (temporary workaround for https://github.com/golang/go/issues/28975)
+									console.warn("scheduleTimeoutEvent: missed timeout event");
+									this._resume();
+								}
+							},
+							getInt64(sp + 8) + 1, // setTimeout has been seen to fire up to 1 millisecond early
+						));
+						mem().setInt32(sp + 16, id, true);
+					},
+
+					// func clearTimeoutEvent(id int32)
+					"runtime.clearTimeoutEvent": (sp) => {
+						const id = mem().getInt32(sp + 8, true);
+						clearTimeout(this._scheduledTimeouts.get(id));
+						this._scheduledTimeouts.delete(id);
+					},
+
+					// func getRandomData(r []byte)
+					"runtime.getRandomData": (sp) => {
+						crypto.getRandomValues(loadSlice(sp + 8));
+					},
+
+					// func stringVal(value string) ref
+					"syscall/js.stringVal": (sp) => {
+						storeValue(sp + 24, loadString(sp + 8));
+					},
+
+					// func valueGet(v ref, p string) ref
+					"syscall/js.valueGet": (sp) => {
+						const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16));
+						sp = this._inst.exports.getsp(); // see comment above
+						storeValue(sp + 32, result);
+					},
+
+					// func valueSet(v ref, p string, x ref)
+					"syscall/js.valueSet": (sp) => {
+						Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32));
+					},
+
+					// func valueIndex(v ref, i int) ref
+					"syscall/js.valueIndex": (sp) => {
+						storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));
+					},
+
+					// valueSetIndex(v ref, i int, x ref)
+					"syscall/js.valueSetIndex": (sp) => {
+						Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));
+					},
+
+					// func valueCall(v ref, m string, args []ref) (ref, bool)
+					"syscall/js.valueCall": (sp) => {
+						try {
+							const v = loadValue(sp + 8);
+							const m = Reflect.get(v, loadString(sp + 16));
+							const args = loadSliceOfValues(sp + 32);
+							const result = Reflect.apply(m, v, args);
+							sp = this._inst.exports.getsp(); // see comment above
+							storeValue(sp + 56, result);
+							mem().setUint8(sp + 64, 1);
+						} catch (err) {
+							storeValue(sp + 56, err);
+							mem().setUint8(sp + 64, 0);
+						}
+					},
+
+					// func valueInvoke(v ref, args []ref) (ref, bool)
+					"syscall/js.valueInvoke": (sp) => {
+						try {
+							const v = loadValue(sp + 8);
+							const args = loadSliceOfValues(sp + 16);
+							const result = Reflect.apply(v, undefined, args);
+							sp = this._inst.exports.getsp(); // see comment above
+							storeValue(sp + 40, result);
+							mem().setUint8(sp + 48, 1);
+						} catch (err) {
+							storeValue(sp + 40, err);
+							mem().setUint8(sp + 48, 0);
+						}
+					},
+
+					// func valueNew(v ref, args []ref) (ref, bool)
+					"syscall/js.valueNew": (sp) => {
+						try {
+							const v = loadValue(sp + 8);
+							const args = loadSliceOfValues(sp + 16);
+							const result = Reflect.construct(v, args);
+							sp = this._inst.exports.getsp(); // see comment above
+							storeValue(sp + 40, result);
+							mem().setUint8(sp + 48, 1);
+						} catch (err) {
+							storeValue(sp + 40, err);
+							mem().setUint8(sp + 48, 0);
+						}
+					},
+
+					// func valueLength(v ref) int
+					"syscall/js.valueLength": (sp) => {
+						setInt64(sp + 16, parseInt(loadValue(sp + 8).length));
+					},
+
+					// valuePrepareString(v ref) (ref, int)
+					"syscall/js.valuePrepareString": (sp) => {
+						const str = encoder.encode(String(loadValue(sp + 8)));
+						storeValue(sp + 16, str);
+						setInt64(sp + 24, str.length);
+					},
+
+					// valueLoadString(v ref, b []byte)
+					"syscall/js.valueLoadString": (sp) => {
+						const str = loadValue(sp + 8);
+						loadSlice(sp + 16).set(str);
+					},
+
+					// func valueInstanceOf(v ref, t ref) bool
+					"syscall/js.valueInstanceOf": (sp) => {
+						mem().setUint8(sp + 24, loadValue(sp + 8) instanceof loadValue(sp + 16));
+					},
+
+					// func copyBytesToGo(dst []byte, src ref) (int, bool)
+					"syscall/js.copyBytesToGo": (sp) => {
+						const dst = loadSlice(sp + 8);
+						const src = loadValue(sp + 32);
+						if (!(src instanceof Uint8Array)) {
+							mem().setUint8(sp + 48, 0);
+							return;
+						}
+						const toCopy = src.subarray(0, dst.length);
+						dst.set(toCopy);
+						setInt64(sp + 40, toCopy.length);
+						mem().setUint8(sp + 48, 1);
+					},
+
+					// func copyBytesToJS(dst ref, src []byte) (int, bool)
+					"syscall/js.copyBytesToJS": (sp) => {
+						const dst = loadValue(sp + 8);
+						const src = loadSlice(sp + 16);
+						if (!(dst instanceof Uint8Array)) {
+							mem().setUint8(sp + 48, 0);
+							return;
+						}
+						const toCopy = src.subarray(0, dst.length);
+						dst.set(toCopy);
+						setInt64(sp + 40, toCopy.length);
+						mem().setUint8(sp + 48, 1);
+					},
+
+					"debug": (value) => {
+						console.log(value);
+					},
+				}
+			};
+		}
+
+		async run(instance) {
+			this._inst = instance;
+			this._values = [ // TODO: garbage collection
+				NaN,
+				0,
+				null,
+				true,
+				false,
+				global,
+				this,
+			];
+			this._refs = new Map();
+			this.exited = false;
+
+			const mem = new DataView(this._inst.exports.mem.buffer)
+
+			// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
+			let offset = 4096;
+
+			const strPtr = (str) => {
+				const ptr = offset;
+				const bytes = encoder.encode(str + "\0");
+				new Uint8Array(mem.buffer, offset, bytes.length).set(bytes);
+				offset += bytes.length;
+				if (offset % 8 !== 0) {
+					offset += 8 - (offset % 8);
+				}
+				return ptr;
+			};
+
+			const argc = this.argv.length;
+
+			const argvPtrs = [];
+			this.argv.forEach((arg) => {
+				argvPtrs.push(strPtr(arg));
+			});
+
+			const keys = Object.keys(this.env).sort();
+			argvPtrs.push(keys.length);
+			keys.forEach((key) => {
+				argvPtrs.push(strPtr(`${key}=${this.env[key]}`));
+			});
+
+			const argv = offset;
+			argvPtrs.forEach((ptr) => {
+				mem.setUint32(offset, ptr, true);
+				mem.setUint32(offset + 4, 0, true);
+				offset += 8;
+			});
+
+			this._inst.exports.run(argc, argv);
+			if (this.exited) {
+				this._resolveExitPromise();
+			}
+			await this._exitPromise;
+		}
+
+		_resume() {
+			if (this.exited) {
+				throw new Error("Go program has already exited");
+			}
+			this._inst.exports.resume();
+			if (this.exited) {
+				this._resolveExitPromise();
+			}
+		}
+
+		_makeFuncWrapper(id) {
+			const go = this;
+			return function () {
+				const event = { id: id, this: this, args: arguments };
+				go._pendingEvent = event;
+				go._resume();
+				return event.result;
+			};
+		}
+	}
+
+	if (
+		global.require &&
+		global.require.main === module &&
+		global.process &&
+		global.process.versions &&
+		!global.process.versions.electron
+	) {
+		if (process.argv.length < 3) {
+			console.error("usage: go_js_wasm_exec [wasm binary] [arguments]");
+			process.exit(1);
+		}
+
+		const go = new Go();
+		go.argv = process.argv.slice(2);
+		go.env = Object.assign({ TMPDIR: require("os").tmpdir() }, process.env);
+		go.exit = process.exit;
+		WebAssembly.instantiate(fs.readFileSync(process.argv[2]), go.importObject).then((result) => {
+			process.on("exit", (code) => { // Node.js exits if no event handler is pending
+				if (code === 0 && !go.exited) {
+					// deadlock, make Go print error and stack traces
+					go._pendingEvent = { id: 0 };
+					go._resume();
+				}
+			});
+			return go.run(result.instance);
+		}).catch((err) => {
+			console.error(err);
+			process.exit(1);
+		});
+	}
+})();