mirror of
https://github.com/denoland/deno.git
synced 2024-10-31 09:14:20 -04:00
606 lines
21 KiB
JavaScript
606 lines
21 KiB
JavaScript
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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// Removes the `__proto__` for security reasons. This intentionally makes
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// Deno non compliant with ECMA-262 Annex B.2.2.1
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//
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"use strict";
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delete Object.prototype.__proto__;
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((window) => {
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const core = Deno.core;
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const util = window.__bootstrap.util;
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const eventTarget = window.__bootstrap.eventTarget;
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const globalInterfaces = window.__bootstrap.globalInterfaces;
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const location = window.__bootstrap.location;
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const build = window.__bootstrap.build;
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const version = window.__bootstrap.version;
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const errorStack = window.__bootstrap.errorStack;
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const os = window.__bootstrap.os;
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const timers = window.__bootstrap.timers;
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const base64 = window.__bootstrap.base64;
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const encoding = window.__bootstrap.encoding;
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const Console = window.__bootstrap.console.Console;
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const worker = window.__bootstrap.worker;
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const signals = window.__bootstrap.signals;
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const internals = window.__bootstrap.internals;
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const performance = window.__bootstrap.performance;
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const crypto = window.__bootstrap.crypto;
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const url = window.__bootstrap.url;
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const headers = window.__bootstrap.headers;
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const streams = window.__bootstrap.streams;
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const fileReader = window.__bootstrap.fileReader;
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const webgpu = window.__bootstrap.webgpu;
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const webSocket = window.__bootstrap.webSocket;
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const webStorage = window.__bootstrap.webStorage;
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const broadcastChannel = window.__bootstrap.broadcastChannel;
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const file = window.__bootstrap.file;
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const formData = window.__bootstrap.formData;
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const fetch = window.__bootstrap.fetch;
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const prompt = window.__bootstrap.prompt;
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const messagePort = window.__bootstrap.messagePort;
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const denoNs = window.__bootstrap.denoNs;
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const denoNsUnstable = window.__bootstrap.denoNsUnstable;
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const errors = window.__bootstrap.errors.errors;
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const webidl = window.__bootstrap.webidl;
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const { defineEventHandler } = window.__bootstrap.webUtil;
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const { deserializeJsMessageData, serializeJsMessageData } =
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window.__bootstrap.messagePort;
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let windowIsClosing = false;
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function windowClose() {
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if (!windowIsClosing) {
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windowIsClosing = true;
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// Push a macrotask to exit after a promise resolve.
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// This is not perfect, but should be fine for first pass.
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Promise.resolve().then(() =>
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timers.setTimeout.call(
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null,
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() => {
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// This should be fine, since only Window/MainWorker has .close()
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os.exit(0);
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},
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0,
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)
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);
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}
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}
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function workerClose() {
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if (isClosing) {
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return;
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}
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isClosing = true;
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core.opSync("op_worker_close");
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}
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// TODO(bartlomieju): remove these functions
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// Stuff for workers
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const onmessage = () => {};
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const onerror = () => {};
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function postMessage(message, transferOrOptions = {}) {
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const prefix =
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"Failed to execute 'postMessage' on 'DedicatedWorkerGlobalScope'";
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webidl.requiredArguments(arguments.length, 1, { prefix });
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message = webidl.converters.any(message);
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let options;
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if (
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webidl.type(transferOrOptions) === "Object" &&
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transferOrOptions !== undefined &&
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transferOrOptions[Symbol.iterator] !== undefined
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) {
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const transfer = webidl.converters["sequence<object>"](
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transferOrOptions,
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{ prefix, context: "Argument 2" },
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);
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options = { transfer };
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} else {
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options = webidl.converters.PostMessageOptions(transferOrOptions, {
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prefix,
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context: "Argument 2",
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});
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}
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const { transfer } = options;
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const data = serializeJsMessageData(message, transfer);
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core.opSync("op_worker_post_message", data);
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}
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let isClosing = false;
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let globalDispatchEvent;
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async function pollForMessages() {
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if (!globalDispatchEvent) {
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globalDispatchEvent = globalThis.dispatchEvent.bind(globalThis);
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}
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while (!isClosing) {
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const data = await core.opAsync("op_worker_recv_message");
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if (data === null) break;
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const v = deserializeJsMessageData(data);
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const message = v[0];
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const transfer = v[1];
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const msgEvent = new MessageEvent("message", {
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cancelable: false,
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data: message,
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ports: transfer,
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});
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try {
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if (globalThis.onmessage) {
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await globalThis.onmessage(msgEvent);
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}
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globalDispatchEvent(msgEvent);
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} catch (e) {
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let handled = false;
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const errorEvent = new ErrorEvent("error", {
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cancelable: true,
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message: e.message,
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lineno: e.lineNumber ? e.lineNumber + 1 : undefined,
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colno: e.columnNumber ? e.columnNumber + 1 : undefined,
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filename: e.fileName,
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error: null,
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});
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if (globalThis["onerror"]) {
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const ret = globalThis.onerror(
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e.message,
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e.fileName,
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e.lineNumber,
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e.columnNumber,
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e,
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);
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handled = ret === true;
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}
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globalDispatchEvent(errorEvent);
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if (errorEvent.defaultPrevented) {
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handled = true;
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}
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if (!handled) {
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core.opSync(
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"op_worker_unhandled_error",
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e.message,
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);
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}
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}
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}
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}
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function opMainModule() {
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return core.opSync("op_main_module");
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}
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function runtimeStart(runtimeOptions, source) {
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core.setMacrotaskCallback(timers.handleTimerMacrotask);
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version.setVersions(
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runtimeOptions.denoVersion,
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runtimeOptions.v8Version,
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runtimeOptions.tsVersion,
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);
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build.setBuildInfo(runtimeOptions.target);
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util.setLogDebug(runtimeOptions.debugFlag, source);
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// TODO(bartlomieju): a very crude way to disable
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// source mapping of errors. This condition is true
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// only for compiled standalone binaries.
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let prepareStackTrace;
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if (runtimeOptions.applySourceMaps) {
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prepareStackTrace = core.createPrepareStackTrace(
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errorStack.opApplySourceMap,
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);
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} else {
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prepareStackTrace = core.createPrepareStackTrace();
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}
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Error.prepareStackTrace = prepareStackTrace;
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}
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function registerErrors() {
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core.registerErrorClass("NotFound", errors.NotFound);
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core.registerErrorClass("PermissionDenied", errors.PermissionDenied);
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core.registerErrorClass("ConnectionRefused", errors.ConnectionRefused);
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core.registerErrorClass("ConnectionReset", errors.ConnectionReset);
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core.registerErrorClass("ConnectionAborted", errors.ConnectionAborted);
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core.registerErrorClass("NotConnected", errors.NotConnected);
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core.registerErrorClass("AddrInUse", errors.AddrInUse);
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core.registerErrorClass("AddrNotAvailable", errors.AddrNotAvailable);
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core.registerErrorClass("BrokenPipe", errors.BrokenPipe);
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core.registerErrorClass("AlreadyExists", errors.AlreadyExists);
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core.registerErrorClass("InvalidData", errors.InvalidData);
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core.registerErrorClass("TimedOut", errors.TimedOut);
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core.registerErrorClass("Interrupted", errors.Interrupted);
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core.registerErrorClass("WriteZero", errors.WriteZero);
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core.registerErrorClass("UnexpectedEof", errors.UnexpectedEof);
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core.registerErrorClass("BadResource", errors.BadResource);
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core.registerErrorClass("Http", errors.Http);
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core.registerErrorClass("Busy", errors.Busy);
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core.registerErrorClass("NotSupported", errors.NotSupported);
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core.registerErrorBuilder(
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"DOMExceptionOperationError",
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function DOMExceptionOperationError(msg) {
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return new DOMException(msg, "OperationError");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionQuotaExceededError",
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function DOMExceptionQuotaExceededError(msg) {
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return new DOMException(msg, "QuotaExceededError");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionNotSupportedError",
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function DOMExceptionNotSupportedError(msg) {
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return new DOMException(msg, "NotSupported");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionInvalidCharacterError",
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function DOMExceptionInvalidCharacterError(msg) {
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return new DOMException(msg, "InvalidCharacterError");
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},
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);
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}
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class Navigator {
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constructor() {
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webidl.illegalConstructor();
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}
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[Symbol.for("Deno.customInspect")](inspect) {
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return `${this.constructor.name} ${inspect({})}`;
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}
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}
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const navigator = webidl.createBranded(Navigator);
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Object.defineProperties(Navigator.prototype, {
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gpu: {
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configurable: true,
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enumerable: true,
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get() {
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webidl.assertBranded(this, Navigator);
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return webgpu.gpu;
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},
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},
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});
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class WorkerNavigator {
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constructor() {
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webidl.illegalConstructor();
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}
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[Symbol.for("Deno.customInspect")](inspect) {
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return `${this.constructor.name} ${inspect({})}`;
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}
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}
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const workerNavigator = webidl.createBranded(WorkerNavigator);
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Object.defineProperties(WorkerNavigator.prototype, {
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gpu: {
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configurable: true,
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enumerable: true,
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get() {
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webidl.assertBranded(this, WorkerNavigator);
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return webgpu.gpu;
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},
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},
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});
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// https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope
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const windowOrWorkerGlobalScope = {
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Blob: util.nonEnumerable(file.Blob),
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ByteLengthQueuingStrategy: util.nonEnumerable(
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streams.ByteLengthQueuingStrategy,
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),
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CloseEvent: util.nonEnumerable(CloseEvent),
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CountQueuingStrategy: util.nonEnumerable(
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streams.CountQueuingStrategy,
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),
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CustomEvent: util.nonEnumerable(CustomEvent),
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DOMException: util.nonEnumerable(DOMException),
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ErrorEvent: util.nonEnumerable(ErrorEvent),
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Event: util.nonEnumerable(Event),
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EventTarget: util.nonEnumerable(EventTarget),
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File: util.nonEnumerable(file.File),
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FileReader: util.nonEnumerable(fileReader.FileReader),
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FormData: util.nonEnumerable(formData.FormData),
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Headers: util.nonEnumerable(headers.Headers),
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MessageEvent: util.nonEnumerable(MessageEvent),
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Performance: util.nonEnumerable(performance.Performance),
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PerformanceEntry: util.nonEnumerable(performance.PerformanceEntry),
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PerformanceMark: util.nonEnumerable(performance.PerformanceMark),
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PerformanceMeasure: util.nonEnumerable(performance.PerformanceMeasure),
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ProgressEvent: util.nonEnumerable(ProgressEvent),
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ReadableStream: util.nonEnumerable(streams.ReadableStream),
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ReadableStreamDefaultReader: util.nonEnumerable(
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streams.ReadableStreamDefaultReader,
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),
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Request: util.nonEnumerable(fetch.Request),
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Response: util.nonEnumerable(fetch.Response),
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TextDecoder: util.nonEnumerable(encoding.TextDecoder),
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TextEncoder: util.nonEnumerable(encoding.TextEncoder),
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TextDecoderStream: util.nonEnumerable(encoding.TextDecoderStream),
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TextEncoderStream: util.nonEnumerable(encoding.TextEncoderStream),
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TransformStream: util.nonEnumerable(streams.TransformStream),
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URL: util.nonEnumerable(url.URL),
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URLSearchParams: util.nonEnumerable(url.URLSearchParams),
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WebSocket: util.nonEnumerable(webSocket.WebSocket),
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BroadcastChannel: util.nonEnumerable(broadcastChannel.BroadcastChannel),
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MessageChannel: util.nonEnumerable(messagePort.MessageChannel),
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MessagePort: util.nonEnumerable(messagePort.MessagePort),
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Worker: util.nonEnumerable(worker.Worker),
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WritableStream: util.nonEnumerable(streams.WritableStream),
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WritableStreamDefaultWriter: util.nonEnumerable(
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streams.WritableStreamDefaultWriter,
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),
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WritableStreamDefaultController: util.nonEnumerable(
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streams.WritableStreamDefaultController,
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),
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ReadableByteStreamController: util.nonEnumerable(
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streams.ReadableByteStreamController,
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),
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ReadableStreamDefaultController: util.nonEnumerable(
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streams.ReadableStreamDefaultController,
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),
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TransformStreamDefaultController: util.nonEnumerable(
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streams.TransformStreamDefaultController,
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),
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atob: util.writable(base64.atob),
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btoa: util.writable(base64.btoa),
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clearInterval: util.writable(timers.clearInterval),
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clearTimeout: util.writable(timers.clearTimeout),
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console: util.writable(
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new Console((msg, level) => core.print(msg, level > 1)),
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),
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crypto: util.readOnly(crypto.crypto),
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Crypto: util.nonEnumerable(crypto.Crypto),
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SubtleCrypto: util.nonEnumerable(crypto.SubtleCrypto),
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fetch: util.writable(fetch.fetch),
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performance: util.writable(performance.performance),
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setInterval: util.writable(timers.setInterval),
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setTimeout: util.writable(timers.setTimeout),
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GPU: util.nonEnumerable(webgpu.GPU),
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GPUAdapter: util.nonEnumerable(webgpu.GPUAdapter),
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GPUAdapterLimits: util.nonEnumerable(webgpu.GPUAdapterLimits),
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GPUSupportedFeatures: util.nonEnumerable(webgpu.GPUSupportedFeatures),
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GPUDevice: util.nonEnumerable(webgpu.GPUDevice),
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GPUQueue: util.nonEnumerable(webgpu.GPUQueue),
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GPUBuffer: util.nonEnumerable(webgpu.GPUBuffer),
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GPUBufferUsage: util.nonEnumerable(webgpu.GPUBufferUsage),
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GPUMapMode: util.nonEnumerable(webgpu.GPUMapMode),
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GPUTexture: util.nonEnumerable(webgpu.GPUTexture),
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GPUTextureUsage: util.nonEnumerable(webgpu.GPUTextureUsage),
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GPUTextureView: util.nonEnumerable(webgpu.GPUTextureView),
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GPUSampler: util.nonEnumerable(webgpu.GPUSampler),
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GPUBindGroupLayout: util.nonEnumerable(webgpu.GPUBindGroupLayout),
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GPUPipelineLayout: util.nonEnumerable(webgpu.GPUPipelineLayout),
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GPUBindGroup: util.nonEnumerable(webgpu.GPUBindGroup),
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GPUShaderModule: util.nonEnumerable(webgpu.GPUShaderModule),
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GPUShaderStage: util.nonEnumerable(webgpu.GPUShaderStage),
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GPUComputePipeline: util.nonEnumerable(webgpu.GPUComputePipeline),
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GPURenderPipeline: util.nonEnumerable(webgpu.GPURenderPipeline),
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GPUColorWrite: util.nonEnumerable(webgpu.GPUColorWrite),
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GPUCommandEncoder: util.nonEnumerable(webgpu.GPUCommandEncoder),
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GPURenderPassEncoder: util.nonEnumerable(webgpu.GPURenderPassEncoder),
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GPUComputePassEncoder: util.nonEnumerable(webgpu.GPUComputePassEncoder),
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GPUCommandBuffer: util.nonEnumerable(webgpu.GPUCommandBuffer),
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GPURenderBundleEncoder: util.nonEnumerable(webgpu.GPURenderBundleEncoder),
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GPURenderBundle: util.nonEnumerable(webgpu.GPURenderBundle),
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GPUQuerySet: util.nonEnumerable(webgpu.GPUQuerySet),
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GPUOutOfMemoryError: util.nonEnumerable(webgpu.GPUOutOfMemoryError),
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GPUValidationError: util.nonEnumerable(webgpu.GPUValidationError),
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};
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// The console seems to be the only one that should be writable and non-enumerable
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// thus we don't have a unique helper for it. If other properties follow the same
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// structure, it might be worth it to define a helper in `util`
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windowOrWorkerGlobalScope.console.enumerable = false;
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const mainRuntimeGlobalProperties = {
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Location: location.locationConstructorDescriptor,
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location: location.locationDescriptor,
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Window: globalInterfaces.windowConstructorDescriptor,
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window: util.readOnly(globalThis),
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self: util.readOnly(globalThis),
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Navigator: util.nonEnumerable(Navigator),
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navigator: {
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configurable: true,
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enumerable: true,
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get: () => navigator,
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},
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// TODO(bartlomieju): from MDN docs (https://developer.mozilla.org/en-US/docs/Web/API/WorkerGlobalScope)
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// it seems those two properties should be available to workers as well
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onload: util.writable(null),
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onunload: util.writable(null),
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close: util.writable(windowClose),
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closed: util.getterOnly(() => windowIsClosing),
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alert: util.writable(prompt.alert),
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confirm: util.writable(prompt.confirm),
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prompt: util.writable(prompt.prompt),
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localStorage: {
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configurable: true,
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enumerable: true,
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get: webStorage.localStorage,
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},
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sessionStorage: {
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configurable: true,
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enumerable: true,
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get: webStorage.sessionStorage,
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},
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Storage: util.nonEnumerable(webStorage.Storage),
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};
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const workerRuntimeGlobalProperties = {
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WorkerLocation: location.workerLocationConstructorDescriptor,
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location: location.workerLocationDescriptor,
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WorkerGlobalScope: globalInterfaces.workerGlobalScopeConstructorDescriptor,
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DedicatedWorkerGlobalScope:
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globalInterfaces.dedicatedWorkerGlobalScopeConstructorDescriptor,
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WorkerNavigator: util.nonEnumerable(WorkerNavigator),
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navigator: {
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configurable: true,
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enumerable: true,
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get: () => workerNavigator,
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},
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self: util.readOnly(globalThis),
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onmessage: util.writable(onmessage),
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onerror: util.writable(onerror),
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// TODO(bartlomieju): should be readonly?
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close: util.nonEnumerable(workerClose),
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postMessage: util.writable(postMessage),
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};
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let hasBootstrapped = false;
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function bootstrapMainRuntime(runtimeOptions) {
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if (hasBootstrapped) {
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throw new Error("Worker runtime already bootstrapped");
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}
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// Remove bootstrapping data from the global scope
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delete globalThis.__bootstrap;
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delete globalThis.bootstrap;
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util.log("bootstrapMainRuntime");
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hasBootstrapped = true;
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Object.defineProperties(globalThis, windowOrWorkerGlobalScope);
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Object.defineProperties(globalThis, mainRuntimeGlobalProperties);
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Object.setPrototypeOf(globalThis, Window.prototype);
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eventTarget.setEventTargetData(globalThis);
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defineEventHandler(window, "load", null);
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defineEventHandler(window, "unload", null);
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const isUnloadDispatched = Symbol.for("isUnloadDispatched");
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// Stores the flag for checking whether unload is dispatched or not.
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// This prevents the recursive dispatches of unload events.
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// See https://github.com/denoland/deno/issues/9201.
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window[isUnloadDispatched] = false;
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window.addEventListener("unload", () => {
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window[isUnloadDispatched] = true;
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});
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runtimeStart(runtimeOptions);
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const {
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args,
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location: locationHref,
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noColor,
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pid,
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ppid,
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unstableFlag,
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} = runtimeOptions;
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if (locationHref != null) {
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location.setLocationHref(locationHref);
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}
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registerErrors();
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const internalSymbol = Symbol("Deno.internal");
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const finalDenoNs = {
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core,
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|
internal: internalSymbol,
|
|
[internalSymbol]: internals,
|
|
resources: core.resources,
|
|
close: core.close,
|
|
memoryUsage: core.memoryUsage,
|
|
...denoNs,
|
|
};
|
|
Object.defineProperties(finalDenoNs, {
|
|
pid: util.readOnly(pid),
|
|
ppid: util.readOnly(ppid),
|
|
noColor: util.readOnly(noColor),
|
|
args: util.readOnly(Object.freeze(args)),
|
|
mainModule: util.getterOnly(opMainModule),
|
|
});
|
|
|
|
if (unstableFlag) {
|
|
Object.assign(finalDenoNs, denoNsUnstable);
|
|
}
|
|
|
|
// Setup `Deno` global - we're actually overriding already existing global
|
|
// `Deno` with `Deno` namespace from "./deno.ts".
|
|
Object.defineProperty(globalThis, "Deno", util.readOnly(finalDenoNs));
|
|
Object.freeze(globalThis.Deno.core);
|
|
Object.freeze(globalThis.Deno.core.sharedQueue);
|
|
signals.setSignals();
|
|
|
|
util.log("args", args);
|
|
}
|
|
|
|
function bootstrapWorkerRuntime(
|
|
runtimeOptions,
|
|
name,
|
|
useDenoNamespace,
|
|
internalName,
|
|
) {
|
|
if (hasBootstrapped) {
|
|
throw new Error("Worker runtime already bootstrapped");
|
|
}
|
|
// Remove bootstrapping data from the global scope
|
|
delete globalThis.__bootstrap;
|
|
delete globalThis.bootstrap;
|
|
util.log("bootstrapWorkerRuntime");
|
|
hasBootstrapped = true;
|
|
Object.defineProperties(globalThis, windowOrWorkerGlobalScope);
|
|
Object.defineProperties(globalThis, workerRuntimeGlobalProperties);
|
|
Object.defineProperties(globalThis, { name: util.readOnly(name) });
|
|
Object.setPrototypeOf(globalThis, DedicatedWorkerGlobalScope.prototype);
|
|
eventTarget.setEventTargetData(globalThis);
|
|
|
|
runtimeStart(
|
|
runtimeOptions,
|
|
internalName ?? name,
|
|
);
|
|
const { unstableFlag, pid, noColor, args, location: locationHref } =
|
|
runtimeOptions;
|
|
|
|
location.setLocationHref(locationHref);
|
|
registerErrors();
|
|
|
|
pollForMessages();
|
|
|
|
const internalSymbol = Symbol("Deno.internal");
|
|
|
|
const finalDenoNs = {
|
|
core,
|
|
internal: internalSymbol,
|
|
[internalSymbol]: internals,
|
|
resources: core.resources,
|
|
close: core.close,
|
|
...denoNs,
|
|
};
|
|
if (useDenoNamespace) {
|
|
if (unstableFlag) {
|
|
Object.assign(finalDenoNs, denoNsUnstable);
|
|
}
|
|
Object.defineProperties(finalDenoNs, {
|
|
pid: util.readOnly(pid),
|
|
noColor: util.readOnly(noColor),
|
|
args: util.readOnly(Object.freeze(args)),
|
|
});
|
|
// Setup `Deno` global - we're actually overriding already
|
|
// existing global `Deno` with `Deno` namespace from "./deno.ts".
|
|
util.immutableDefine(globalThis, "Deno", finalDenoNs);
|
|
Object.freeze(globalThis.Deno);
|
|
Object.freeze(globalThis.Deno.core);
|
|
Object.freeze(globalThis.Deno.core.sharedQueue);
|
|
signals.setSignals();
|
|
} else {
|
|
delete globalThis.Deno;
|
|
util.assert(globalThis.Deno === undefined);
|
|
}
|
|
}
|
|
|
|
Object.defineProperties(globalThis, {
|
|
bootstrap: {
|
|
value: {
|
|
mainRuntime: bootstrapMainRuntime,
|
|
workerRuntime: bootstrapWorkerRuntime,
|
|
},
|
|
configurable: true,
|
|
},
|
|
});
|
|
})(this);
|