forked from matrix/element-web
first cut at embedding dendrite into riot as a service-worker
This commit is contained in:
Matthew Hodgson
parent
119802d00f
commit
80411d38f7
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@ -64,6 +64,8 @@
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"favico.js": "^0.3.10",
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"gemini-scrollbar": "github:matrix-org/gemini-scrollbar#91e1e566",
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"gfm.css": "^1.1.2",
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"go-sqlite-js": "^0.1.0",
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"go-http-js-libp2p": "^0.1.0",
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"highlight.js": "^9.13.1",
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"matrix-js-sdk": "3.0.0",
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"matrix-react-sdk": "1.7.6",
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@ -0,0 +1,53 @@
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// -*- coding: utf-8 -*-
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// Copyright 2020 The Matrix.org Foundation C.I.C.
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// Copyright 2020 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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self.importScripts("wasm_exec.js", "bundles/go_http_bridge.js", "bundles/sqlite_bridge.js")
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self.addEventListener('install', function(event) {
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console.log("installing SW")
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})
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self.addEventListener('activate', function(event) {
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console.log("SW activated")
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const config = {
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locateFile: filename => 'sql_wasm.wasm'
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}
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event.waitUntil(
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sqlite_bridge.init(config).then(()=>{
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const go = new Go()
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WebAssembly.instantiateStreaming(fetch('dendrite.wasm'), go.importObject).then((result) => {
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go.run(result.instance)
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});
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})
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)
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})
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self.addEventListener('fetch', function(event) {
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console.log("intercepted " + event.request.url)
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if (event.request.url.match(/\/_matrix\/client/)) {
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if (global.fetchListener) {
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event.respondWith(global.fetchListener.onFetch(event))
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}
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else {
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console.log("no fetch listener present for " + event.request.url)
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}
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}
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else {
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return fetch(event.request)
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}
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})
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Binary file not shown.
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@ -39,6 +39,7 @@
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<noscript>Sorry, Riot requires JavaScript to be enabled.</noscript> <!-- TODO: Translate this? -->
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<script>
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window.vector_indexeddb_worker_script = '<%= htmlWebpackPlugin.files.chunks['indexeddb-worker'].entry %>';
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window.vector_dendrite_worker_script = '<%= htmlWebpackPlugin.files.chunks['dendrite-sw'].entry %>';
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</script>
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<script src="<%= htmlWebpackPlugin.files.chunks['bundle'].entry %>"></script>
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<script>
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@ -180,6 +180,20 @@ async function loadApp() {
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throw new Error("Missing indexeddb worker script!");
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}
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MatrixClientPeg.setIndexedDbWorkerScript(window.vector_indexeddb_worker_script);
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// load dendrite, if available
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if (window.vector_dendrite_worker_script && 'serviceWorker' in navigator) {
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window.addEventListener('load', ()=>{
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navigator.serviceWorker.register(window.vector_dendrite_worker_script).then(function(registration) {
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// Registration was successful
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console.log('ServiceWorker registration successful with scope: ', registration.scope)
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}, (err)=>{
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// registration failed :(
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console.log('ServiceWorker registration failed: ', err)
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})
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})
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}
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CallHandler.setConferenceHandler(VectorConferenceHandler);
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window.addEventListener('hashchange', onHashChange);
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@ -0,0 +1,533 @@
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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(() => {
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// Map multiple JavaScript environments to a single common API,
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// preferring web standards over Node.js API.
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//
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// Environments considered:
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// - Browsers
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// - Node.js
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// - Electron
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// - Parcel
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if (typeof global !== "undefined") {
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// global already exists
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} else if (typeof window !== "undefined") {
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window.global = window;
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} else if (typeof self !== "undefined") {
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self.global = self;
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} else {
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throw new Error("cannot export Go (neither global, window nor self is defined)");
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}
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if (!global.require && typeof require !== "undefined") {
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global.require = require;
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}
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if (!global.fs && global.require) {
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global.fs = require("fs");
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}
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if (!global.fs) {
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let outputBuf = "";
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global.fs = {
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constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused
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writeSync(fd, buf) {
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outputBuf += decoder.decode(buf);
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const nl = outputBuf.lastIndexOf("\n");
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if (nl != -1) {
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console.log(outputBuf.substr(0, nl));
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outputBuf = outputBuf.substr(nl + 1);
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}
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return buf.length;
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},
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write(fd, buf, offset, length, position, callback) {
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if (offset !== 0 || length !== buf.length || position !== null) {
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throw new Error("not implemented");
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}
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const n = this.writeSync(fd, buf);
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callback(null, n);
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},
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open(path, flags, mode, callback) {
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const err = new Error("not implemented");
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err.code = "ENOSYS";
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callback(err);
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},
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read(fd, buffer, offset, length, position, callback) {
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const err = new Error("not implemented");
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err.code = "ENOSYS";
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callback(err);
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},
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fsync(fd, callback) {
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callback(null);
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},
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};
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}
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if (!global.crypto) {
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const nodeCrypto = require("crypto");
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global.crypto = {
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getRandomValues(b) {
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nodeCrypto.randomFillSync(b);
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},
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};
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}
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if (!global.performance) {
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global.performance = {
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now() {
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const [sec, nsec] = process.hrtime();
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return sec * 1000 + nsec / 1000000;
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},
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};
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}
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if (!global.TextEncoder) {
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global.TextEncoder = require("util").TextEncoder;
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}
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if (!global.TextDecoder) {
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global.TextDecoder = require("util").TextDecoder;
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}
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// End of polyfills for common API.
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const encoder = new TextEncoder("utf-8");
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const decoder = new TextDecoder("utf-8");
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global.Go = class {
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constructor() {
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this.argv = ["js"];
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this.env = {};
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this.exit = (code) => {
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if (code !== 0) {
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console.warn("exit code:", code);
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}
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};
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this._exitPromise = new Promise((resolve) => {
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this._resolveExitPromise = resolve;
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});
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this._pendingEvent = null;
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this._scheduledTimeouts = new Map();
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this._nextCallbackTimeoutID = 1;
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const mem = () => {
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// The buffer may change when requesting more memory.
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return new DataView(this._inst.exports.mem.buffer);
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}
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const setInt64 = (addr, v) => {
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mem().setUint32(addr + 0, v, true);
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mem().setUint32(addr + 4, Math.floor(v / 4294967296), true);
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}
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const getInt64 = (addr) => {
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const low = mem().getUint32(addr + 0, true);
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const high = mem().getInt32(addr + 4, true);
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return low + high * 4294967296;
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}
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const loadValue = (addr) => {
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const f = mem().getFloat64(addr, true);
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if (f === 0) {
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return undefined;
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}
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if (!isNaN(f)) {
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return f;
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}
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const id = mem().getUint32(addr, true);
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return this._values[id];
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}
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const storeValue = (addr, v) => {
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const nanHead = 0x7FF80000;
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if (typeof v === "number") {
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if (isNaN(v)) {
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mem().setUint32(addr + 4, nanHead, true);
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mem().setUint32(addr, 0, true);
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return;
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}
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if (v === 0) {
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mem().setUint32(addr + 4, nanHead, true);
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mem().setUint32(addr, 1, true);
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return;
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}
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mem().setFloat64(addr, v, true);
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return;
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}
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switch (v) {
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case undefined:
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mem().setFloat64(addr, 0, true);
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return;
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case null:
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mem().setUint32(addr + 4, nanHead, true);
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mem().setUint32(addr, 2, true);
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return;
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case true:
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mem().setUint32(addr + 4, nanHead, true);
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mem().setUint32(addr, 3, true);
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return;
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case false:
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mem().setUint32(addr + 4, nanHead, true);
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mem().setUint32(addr, 4, true);
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return;
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}
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let ref = this._refs.get(v);
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if (ref === undefined) {
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ref = this._values.length;
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this._values.push(v);
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this._refs.set(v, ref);
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}
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let typeFlag = 0;
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switch (typeof v) {
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case "string":
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typeFlag = 1;
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break;
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case "symbol":
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typeFlag = 2;
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break;
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case "function":
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typeFlag = 3;
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break;
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}
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mem().setUint32(addr + 4, nanHead | typeFlag, true);
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mem().setUint32(addr, ref, true);
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}
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const loadSlice = (addr) => {
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const array = getInt64(addr + 0);
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const len = getInt64(addr + 8);
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return new Uint8Array(this._inst.exports.mem.buffer, array, len);
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}
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const loadSliceOfValues = (addr) => {
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const array = getInt64(addr + 0);
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const len = getInt64(addr + 8);
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const a = new Array(len);
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for (let i = 0; i < len; i++) {
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a[i] = loadValue(array + i * 8);
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}
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return a;
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}
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const loadString = (addr) => {
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const saddr = getInt64(addr + 0);
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const len = getInt64(addr + 8);
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return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));
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}
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const timeOrigin = Date.now() - performance.now();
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this.importObject = {
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go: {
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// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)
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// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
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// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
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// This changes the SP, thus we have to update the SP used by the imported function.
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// func wasmExit(code int32)
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"runtime.wasmExit": (sp) => {
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const code = mem().getInt32(sp + 8, true);
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this.exited = true;
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delete this._inst;
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delete this._values;
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delete this._refs;
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this.exit(code);
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},
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// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
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"runtime.wasmWrite": (sp) => {
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const fd = getInt64(sp + 8);
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const p = getInt64(sp + 16);
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const n = mem().getInt32(sp + 24, true);
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fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
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},
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// func nanotime() int64
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"runtime.nanotime": (sp) => {
|
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setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
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},
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|
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// func walltime() (sec int64, nsec int32)
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"runtime.walltime": (sp) => {
|
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const msec = (new Date).getTime();
|
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setInt64(sp + 8, msec / 1000);
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mem().setInt32(sp + 16, (msec % 1000) * 1000000, true);
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},
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|
||||
// func scheduleTimeoutEvent(delay int64) int32
|
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"runtime.scheduleTimeoutEvent": (sp) => {
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const id = this._nextCallbackTimeoutID;
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this._nextCallbackTimeoutID++;
|
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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)
|
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console.warn("scheduleTimeoutEvent: missed timeout event");
|
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this._resume();
|
||||
}
|
||||
},
|
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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) => {
|
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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)
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||||
"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);
|
||||
});
|
||||
}
|
||||
})();
|
||||
|
|
@ -27,7 +27,12 @@ module.exports = (env, argv) => {
|
|||
entry: {
|
||||
"bundle": "./src/vector/index.js",
|
||||
"indexeddb-worker": "./src/vector/indexeddb-worker.js",
|
||||
"dendrite-sw": "./src/vector/dendrite-sw.js",
|
||||
"mobileguide": "./src/vector/mobile_guide/index.js",
|
||||
"sqlite_bridge": "./node_modules/go-sqlite3-js/js/bridge.js",
|
||||
"go_http_bridge": "./node_modules/go-http-js-libp2p/js/bridge.js",
|
||||
"sql_wasm": "./node_modules/go-sqlite3-js/node_modules/sql.js/dist/sql-wasm.wasm",
|
||||
"dendrite_wasm": "./src/vector/dendrite.wasm",
|
||||
|
||||
// CSS themes
|
||||
"theme-light": "./node_modules/matrix-react-sdk/res/themes/light/css/light.scss",
|
||||
|
|
@ -205,7 +210,9 @@ module.exports = (env, argv) => {
|
|||
loader: "file-loader",
|
||||
type: "javascript/auto", // https://github.com/webpack/webpack/issues/6725
|
||||
options: {
|
||||
name: '[name].[hash:7].[ext]',
|
||||
// fixme - we should have a hash in this for cachebusting, but haven't figured
|
||||
// out a way yet to pass the resulting path from webpack into dendrite-sw
|
||||
name: '[name].[ext]',
|
||||
outputPath: '.',
|
||||
},
|
||||
},
|
||||
|
|
@ -259,6 +266,10 @@ module.exports = (env, argv) => {
|
|||
]
|
||||
},
|
||||
|
||||
node: {
|
||||
fs: 'empty' // needed for sql.js
|
||||
},
|
||||
|
||||
plugins: [
|
||||
new webpack.DefinePlugin({
|
||||
'process.env': {
|
||||
|
|
@ -308,6 +319,8 @@ module.exports = (env, argv) => {
|
|||
// chunks even after the app is redeployed.
|
||||
filename: "bundles/[hash]/[name].js",
|
||||
chunkFilename: "bundles/[hash]/[name].js",
|
||||
libraryTarget: "var",
|
||||
library: "[name]",
|
||||
},
|
||||
|
||||
// configuration for the webpack-dev-server
|
||||
|
|
|
|||
Loading…
Reference in New Issue