mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
1358 lines
44 KiB
JavaScript
1358 lines
44 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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/**
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* Toolkit glue for the remote debugging protocol, loaded into the
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* debugging global.
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*/
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let { Ci, Cc, CC, Cu, Cr } = require("chrome");
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let Services = require("Services");
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let { ActorPool } = require("devtools/server/actors/common");
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let { DebuggerTransport, LocalDebuggerTransport, ChildDebuggerTransport } =
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require("devtools/toolkit/transport/transport");
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let DevToolsUtils = require("devtools/toolkit/DevToolsUtils");
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let { dumpn, dumpv, dbg_assert } = DevToolsUtils;
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let Services = require("Services");
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let EventEmitter = require("devtools/toolkit/event-emitter");
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let Debugger = require("Debugger");
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// Until all Debugger server code is converted to SDK modules,
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// imports Components.* alias from chrome module.
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var { Ci, Cc, CC, Cu, Cr } = require("chrome");
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// On B2G, `this` != Global scope, so `Ci` won't be binded on `this`
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// (i.e. this.Ci is undefined) Then later, when using loadSubScript,
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// Ci,... won't be defined for sub scripts.
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this.Ci = Ci;
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this.Cc = Cc;
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this.CC = CC;
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this.Cu = Cu;
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this.Cr = Cr;
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this.Debugger = Debugger;
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this.Services = Services;
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this.ActorPool = ActorPool;
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this.DevToolsUtils = DevToolsUtils;
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this.dumpn = dumpn;
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this.dumpv = dumpv;
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this.dbg_assert = dbg_assert;
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// Overload `Components` to prevent SDK loader exception on Components
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// object usage
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Object.defineProperty(this, "Components", {
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get: function () require("chrome").components
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});
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const DBG_STRINGS_URI = "chrome://global/locale/devtools/debugger.properties";
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DevToolsUtils.defineLazyGetter(this, "nsFile", () => {
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return CC("@mozilla.org/file/local;1", "nsIFile", "initWithPath");
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});
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if (isWorker) {
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dumpn.wantLogging = true;
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dumpv.wantVerbose = true;
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} else {
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const LOG_PREF = "devtools.debugger.log";
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const VERBOSE_PREF = "devtools.debugger.log.verbose";
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dumpn.wantLogging = Services.prefs.getBoolPref(LOG_PREF);
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dumpv.wantVerbose =
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Services.prefs.getPrefType(VERBOSE_PREF) !== Services.prefs.PREF_INVALID &&
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Services.prefs.getBoolPref(VERBOSE_PREF);
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}
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function loadSubScript(aURL)
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{
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try {
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let loader = Cc["@mozilla.org/moz/jssubscript-loader;1"]
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.getService(Ci.mozIJSSubScriptLoader);
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loader.loadSubScript(aURL, this);
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} catch(e) {
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let errorStr = "Error loading: " + aURL + ":\n" +
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(e.fileName ? "at " + e.fileName + " : " + e.lineNumber + "\n" : "") +
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e + " - " + e.stack + "\n";
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dump(errorStr);
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reportError(errorStr);
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throw e;
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}
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}
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let events = require("sdk/event/core");
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let {defer, resolve, reject, all} = require("devtools/toolkit/deprecated-sync-thenables");
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this.defer = defer;
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this.resolve = resolve;
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this.reject = reject;
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this.all = all;
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// XPCOM constructors
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DevToolsUtils.defineLazyGetter(this, "ServerSocket", () => {
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return CC("@mozilla.org/network/server-socket;1",
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"nsIServerSocket",
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"initSpecialConnection");
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});
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DevToolsUtils.defineLazyGetter(this, "UnixDomainServerSocket", () => {
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return CC("@mozilla.org/network/server-socket;1",
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"nsIServerSocket",
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"initWithFilename");
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});
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var gRegisteredModules = Object.create(null);
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/**
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* The ModuleAPI object is passed to modules loaded using the
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* DebuggerServer.registerModule() API. Modules can use this
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* object to register actor factories.
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* Factories registered through the module API will be removed
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* when the module is unregistered or when the server is
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* destroyed.
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*/
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function ModuleAPI() {
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let activeTabActors = new Set();
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let activeGlobalActors = new Set();
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return {
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// See DebuggerServer.setRootActor for a description.
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setRootActor: function(factory) {
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DebuggerServer.setRootActor(factory);
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},
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// See DebuggerServer.addGlobalActor for a description.
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addGlobalActor: function(factory, name) {
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DebuggerServer.addGlobalActor(factory, name);
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activeGlobalActors.add(factory);
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},
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// See DebuggerServer.removeGlobalActor for a description.
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removeGlobalActor: function(factory) {
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DebuggerServer.removeGlobalActor(factory);
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activeGlobalActors.delete(factory);
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},
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// See DebuggerServer.addTabActor for a description.
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addTabActor: function(factory, name) {
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DebuggerServer.addTabActor(factory, name);
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activeTabActors.add(factory);
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},
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// See DebuggerServer.removeTabActor for a description.
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removeTabActor: function(factory) {
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DebuggerServer.removeTabActor(factory);
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activeTabActors.delete(factory);
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},
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// Destroy the module API object, unregistering any
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// factories registered by the module.
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destroy: function() {
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for (let factory of activeTabActors) {
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DebuggerServer.removeTabActor(factory);
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}
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activeTabActors = null;
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for (let factory of activeGlobalActors) {
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DebuggerServer.removeGlobalActor(factory);
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}
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activeGlobalActors = null;
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}
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}
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};
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/***
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* Public API
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*/
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var DebuggerServer = {
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_listeners: [],
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_initialized: false,
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_transportInitialized: false,
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// Map of global actor names to actor constructors provided by extensions.
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globalActorFactories: {},
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// Map of tab actor names to actor constructors provided by extensions.
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tabActorFactories: {},
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LONG_STRING_LENGTH: 10000,
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LONG_STRING_INITIAL_LENGTH: 1000,
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LONG_STRING_READ_LENGTH: 65 * 1024,
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/**
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* A handler function that prompts the user to accept or decline the incoming
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* connection.
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*/
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_allowConnection: null,
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/**
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* The windowtype of the chrome window to use for actors that use the global
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* window (i.e the global style editor). Set this to your main window type,
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* for example "navigator:browser".
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*/
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chromeWindowType: null,
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/**
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* Prompt the user to accept or decline the incoming connection. This is the
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* default implementation that products embedding the debugger server may
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* choose to override.
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*
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* @return true if the connection should be permitted, false otherwise
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*/
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_defaultAllowConnection: function DS__defaultAllowConnection() {
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let bundle = Services.strings.createBundle(DBG_STRINGS_URI)
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let title = bundle.GetStringFromName("remoteIncomingPromptTitle");
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let msg = bundle.GetStringFromName("remoteIncomingPromptMessage");
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let disableButton = bundle.GetStringFromName("remoteIncomingPromptDisable");
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let prompt = Services.prompt;
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let flags = prompt.BUTTON_POS_0 * prompt.BUTTON_TITLE_OK +
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prompt.BUTTON_POS_1 * prompt.BUTTON_TITLE_CANCEL +
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prompt.BUTTON_POS_2 * prompt.BUTTON_TITLE_IS_STRING +
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prompt.BUTTON_POS_1_DEFAULT;
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let result = prompt.confirmEx(null, title, msg, flags, null, null,
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disableButton, null, { value: false });
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if (result == 0) {
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return true;
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}
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if (result == 2) {
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DebuggerServer.closeAllListeners();
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Services.prefs.setBoolPref("devtools.debugger.remote-enabled", false);
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}
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return false;
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},
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/**
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* Initialize the debugger server.
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*
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* @param function aAllowConnectionCallback
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* The embedder-provider callback, that decides whether an incoming
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* remote protocol conection should be allowed or refused.
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*/
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init: function DS_init(aAllowConnectionCallback) {
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if (this.initialized) {
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return;
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}
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this.initTransport(aAllowConnectionCallback);
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this._initialized = true;
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},
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protocol: require("devtools/server/protocol"),
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/**
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* Initialize the debugger server's transport variables. This can be
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* in place of init() for cases where the jsdebugger isn't needed.
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*
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* @param function aAllowConnectionCallback
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* The embedder-provider callback, that decides whether an incoming
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* remote protocol conection should be allowed or refused.
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*/
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initTransport: function DS_initTransport(aAllowConnectionCallback) {
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if (this._transportInitialized) {
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return;
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}
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this._connections = {};
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this._nextConnID = 0;
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this._transportInitialized = true;
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this._allowConnection = aAllowConnectionCallback ?
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aAllowConnectionCallback :
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this._defaultAllowConnection;
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},
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get initialized() this._initialized,
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/**
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* Performs cleanup tasks before shutting down the debugger server. Such tasks
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* include clearing any actor constructors added at runtime. This method
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* should be called whenever a debugger server is no longer useful, to avoid
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* memory leaks. After this method returns, the debugger server must be
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* initialized again before use.
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*/
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destroy: function DS_destroy() {
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if (!this._initialized) {
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return;
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}
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for (let connID of Object.getOwnPropertyNames(this._connections)) {
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this._connections[connID].close();
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}
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for (let id of Object.getOwnPropertyNames(gRegisteredModules)) {
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let mod = gRegisteredModules[id];
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mod.module.unregister(mod.api);
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}
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gRegisteredModules = {};
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this.closeAllListeners();
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this.globalActorFactories = {};
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this.tabActorFactories = {};
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this._allowConnection = null;
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this._transportInitialized = false;
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this._initialized = false;
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dumpn("Debugger server is shut down.");
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},
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/**
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* Load a subscript into the debugging global.
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*
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* @param aURL string A url that will be loaded as a subscript into the
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* debugging global. The user must load at least one script
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* that implements a createRootActor() function to create the
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* server's root actor.
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*/
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addActors: function DS_addActors(aURL) {
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loadSubScript.call(this, aURL);
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},
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/**
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* Register a CommonJS module with the debugger server.
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* @param id string
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* The ID of a CommonJS module. This module must export
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* 'register' and 'unregister' functions.
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*/
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registerModule: function(id) {
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if (id in gRegisteredModules) {
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throw new Error("Tried to register a module twice: " + id + "\n");
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}
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let moduleAPI = ModuleAPI();
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let mod = require(id);
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mod.register(moduleAPI);
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gRegisteredModules[id] = { module: mod, api: moduleAPI };
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},
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/**
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* Returns true if a module id has been registered.
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*/
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isModuleRegistered: function(id) {
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return (id in gRegisteredModules);
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},
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/**
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* Unregister a previously-loaded CommonJS module from the debugger server.
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*/
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unregisterModule: function(id) {
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let mod = gRegisteredModules[id];
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if (!mod) {
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throw new Error("Tried to unregister a module that was not previously registered.");
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}
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mod.module.unregister(mod.api);
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mod.api.destroy();
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delete gRegisteredModules[id];
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},
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/**
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* Install Firefox-specific actors.
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*
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* /!\ Be careful when adding a new actor, especially global actors.
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* Any new global actor will be exposed and returned by the root actor.
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*
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* That's the reason why tab actors aren't loaded on demand via
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* restrictPrivileges=true, to prevent exposing them on b2g parent process's
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* root actor.
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*/
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addBrowserActors: function(aWindowType = "navigator:browser", restrictPrivileges = false) {
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this.chromeWindowType = aWindowType;
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this.registerModule("devtools/server/actors/webbrowser");
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if (!restrictPrivileges) {
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this.addTabActors();
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let { ChromeDebuggerActor } = require("devtools/server/actors/script");
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this.addGlobalActor(ChromeDebuggerActor, "chromeDebugger");
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this.registerModule("devtools/server/actors/preference");
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}
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this.addActors("resource://gre/modules/devtools/server/actors/webapps.js");
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this.registerModule("devtools/server/actors/device");
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},
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/**
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* Install tab actors in documents loaded in content childs
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*/
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addChildActors: function () {
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// In case of apps being loaded in parent process, DebuggerServer is already
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// initialized and browser actors are already loaded,
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// but childtab.js hasn't been loaded yet.
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if (!DebuggerServer.tabActorFactories.hasOwnProperty("consoleActor")) {
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this.addTabActors();
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}
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// But webbrowser.js and childtab.js aren't loaded from shell.js.
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if (!this.isModuleRegistered("devtools/server/actors/webbrowser")) {
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this.registerModule("devtools/server/actors/webbrowser");
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}
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if (!("ContentActor" in this)) {
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this.addActors("resource://gre/modules/devtools/server/actors/childtab.js");
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}
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},
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/**
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* Install tab actors.
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*/
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addTabActors: function() {
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this.registerModule("devtools/server/actors/script");
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this.registerModule("devtools/server/actors/webconsole");
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this.registerModule("devtools/server/actors/inspector");
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this.registerModule("devtools/server/actors/call-watcher");
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this.registerModule("devtools/server/actors/canvas");
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this.registerModule("devtools/server/actors/webgl");
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this.registerModule("devtools/server/actors/webaudio");
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this.registerModule("devtools/server/actors/stylesheets");
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this.registerModule("devtools/server/actors/styleeditor");
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this.registerModule("devtools/server/actors/storage");
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this.registerModule("devtools/server/actors/gcli");
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this.registerModule("devtools/server/actors/tracer");
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this.registerModule("devtools/server/actors/memory");
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this.registerModule("devtools/server/actors/framerate");
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this.registerModule("devtools/server/actors/eventlooplag");
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this.registerModule("devtools/server/actors/layout");
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this.registerModule("devtools/server/actors/csscoverage");
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this.registerModule("devtools/server/actors/monitor");
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if ("nsIProfiler" in Ci) {
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this.addActors("resource://gre/modules/devtools/server/actors/profiler.js");
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}
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},
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/**
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* Passes a set of options to the BrowserAddonActors for the given ID.
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*
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* @param aId string
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* The ID of the add-on to pass the options to
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* @param aOptions object
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* The options.
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* @return a promise that will be resolved when complete.
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*/
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setAddonOptions: function DS_setAddonOptions(aId, aOptions) {
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if (!this._initialized) {
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return;
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}
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let promises = [];
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// Pass to all connections
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for (let connID of Object.getOwnPropertyNames(this._connections)) {
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promises.push(this._connections[connID].setAddonOptions(aId, aOptions));
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}
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return all(promises);
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},
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get listeningSockets() {
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return this._listeners.length;
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},
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// TODO: Bug 1033079: Remove after cleaning up Gaia test:
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// https://github.com/mozilla-b2g/gaia/blob/1ba15ce1ae7254badd25fd276556c1b4f36c0a45/tests/integration/devtools/server_test.js#L31
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get _listener() {
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return this.listeningSockets;
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},
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/**
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* Listens on the given port or socket file for remote debugger connections.
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*
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* @param portOrPath int, string
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* If given an integer, the port to listen on.
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* Otherwise, the path to the unix socket domain file to listen on.
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* @return SocketListener
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* A SocketListener instance that is already opened is returned. This
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* single listener can be closed at any later time by calling |close|
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* on the SocketListener. If a SocketListener could not be opened, an
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* error is thrown. If remote connections are disabled, undefined is
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* returned.
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*/
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openListener: function(portOrPath) {
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if (!Services.prefs.getBoolPref("devtools.debugger.remote-enabled")) {
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return;
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}
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this._checkInit();
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let listener = new SocketListener(this);
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listener.open(portOrPath);
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this._listeners.push(listener);
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return listener;
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},
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/**
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* Remove a SocketListener instance from the server's set of active
|
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* SocketListeners. This is called by a SocketListener after it is closed.
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*/
|
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_removeListener: function(listener) {
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this._listeners = this._listeners.filter(l => l !== listener);
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},
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/**
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* Closes and forgets all previously opened listeners.
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*
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* @return boolean
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* Whether any listeners were actually closed.
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*/
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closeAllListeners: function() {
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if (!this.listeningSockets) {
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return false;
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}
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for (let listener of this._listeners) {
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listener.close();
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}
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return true;
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},
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|
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/**
|
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* Creates a new connection to the local debugger speaking over a fake
|
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* transport. This connection results in straightforward calls to the onPacket
|
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* handlers of each side.
|
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*
|
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* @param aPrefix string [optional]
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* If given, all actors in this connection will have names starting
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* with |aPrefix + '/'|.
|
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* @returns a client-side DebuggerTransport for communicating with
|
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* the newly-created connection.
|
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*/
|
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connectPipe: function DS_connectPipe(aPrefix) {
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this._checkInit();
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let serverTransport = new LocalDebuggerTransport;
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let clientTransport = new LocalDebuggerTransport(serverTransport);
|
|
serverTransport.other = clientTransport;
|
|
let connection = this._onConnection(serverTransport, aPrefix);
|
|
|
|
// I'm putting this here because I trust you.
|
|
//
|
|
// There are times, when using a local connection, when you're going
|
|
// to be tempted to just get direct access to the server. Resist that
|
|
// temptation! If you succumb to that temptation, you will make the
|
|
// fine developers that work on Fennec and Firefox OS sad. They're
|
|
// professionals, they'll try to act like they understand, but deep
|
|
// down you'll know that you hurt them.
|
|
//
|
|
// This reference allows you to give in to that temptation. There are
|
|
// times this makes sense: tests, for example, and while porting a
|
|
// previously local-only codebase to the remote protocol.
|
|
//
|
|
// But every time you use this, you will feel the shame of having
|
|
// used a property that starts with a '_'.
|
|
clientTransport._serverConnection = connection;
|
|
|
|
return clientTransport;
|
|
},
|
|
|
|
/**
|
|
* In a content child process, create a new connection that exchanges
|
|
* nsIMessageSender messages with our parent process.
|
|
*
|
|
* @param aPrefix
|
|
* The prefix we should use in our nsIMessageSender message names and
|
|
* actor names. This connection will use messages named
|
|
* "debug:<prefix>:packet", and all its actors will have names
|
|
* beginning with "<prefix>/".
|
|
*/
|
|
connectToParent: function(aPrefix, aMessageManager) {
|
|
this._checkInit();
|
|
|
|
let transport = new ChildDebuggerTransport(aMessageManager, aPrefix);
|
|
return this._onConnection(transport, aPrefix, true);
|
|
},
|
|
|
|
/**
|
|
* Connect to a child process.
|
|
*
|
|
* @param object aConnection
|
|
* The debugger server connection to use.
|
|
* @param nsIDOMElement aFrame
|
|
* The browser element that holds the child process.
|
|
* @param function [aOnDisconnect]
|
|
* Optional function to invoke when the child is disconnected.
|
|
* @return object
|
|
* A promise object that is resolved once the connection is
|
|
* established.
|
|
*/
|
|
connectToChild: function(aConnection, aFrame, aOnDisconnect) {
|
|
let deferred = defer();
|
|
|
|
let mm = aFrame.QueryInterface(Ci.nsIFrameLoaderOwner).frameLoader
|
|
.messageManager;
|
|
mm.loadFrameScript("resource://gre/modules/devtools/server/child.js", false);
|
|
|
|
let actor, childTransport;
|
|
let prefix = aConnection.allocID("child");
|
|
let netMonitor = null;
|
|
|
|
let onActorCreated = DevToolsUtils.makeInfallible(function (msg) {
|
|
mm.removeMessageListener("debug:actor", onActorCreated);
|
|
|
|
// Pipe Debugger message from/to parent/child via the message manager
|
|
childTransport = new ChildDebuggerTransport(mm, prefix);
|
|
childTransport.hooks = {
|
|
onPacket: aConnection.send.bind(aConnection),
|
|
onClosed: function () {}
|
|
};
|
|
childTransport.ready();
|
|
|
|
aConnection.setForwarding(prefix, childTransport);
|
|
|
|
dumpn("establishing forwarding for app with prefix " + prefix);
|
|
|
|
actor = msg.json.actor;
|
|
|
|
let { NetworkMonitorManager } = require("devtools/toolkit/webconsole/network-monitor");
|
|
netMonitor = new NetworkMonitorManager(aFrame, actor.actor);
|
|
|
|
deferred.resolve(actor);
|
|
}).bind(this);
|
|
mm.addMessageListener("debug:actor", onActorCreated);
|
|
|
|
let onMessageManagerDisconnect = DevToolsUtils.makeInfallible(function (subject, topic, data) {
|
|
if (subject == mm) {
|
|
Services.obs.removeObserver(onMessageManagerDisconnect, topic);
|
|
if (childTransport) {
|
|
// If we have a child transport, the actor has already
|
|
// been created. We need to stop using this message manager.
|
|
childTransport.close();
|
|
childTransport = null;
|
|
aConnection.cancelForwarding(prefix);
|
|
} else {
|
|
// Otherwise, the app has been closed before the actor
|
|
// had a chance to be created, so we are not able to create
|
|
// the actor.
|
|
deferred.resolve(null);
|
|
}
|
|
if (actor) {
|
|
// The ContentActor within the child process doesn't necessary
|
|
// have to time to uninitialize itself when the app is closed/killed.
|
|
// So ensure telling the client that the related actor is detached.
|
|
aConnection.send({ from: actor.actor, type: "tabDetached" });
|
|
actor = null;
|
|
}
|
|
|
|
if (netMonitor) {
|
|
netMonitor.destroy();
|
|
netMonitor = null;
|
|
}
|
|
|
|
if (aOnDisconnect) {
|
|
aOnDisconnect(mm);
|
|
}
|
|
}
|
|
}).bind(this);
|
|
Services.obs.addObserver(onMessageManagerDisconnect,
|
|
"message-manager-disconnect", false);
|
|
|
|
events.once(aConnection, "closed", () => {
|
|
if (childTransport) {
|
|
// When the client disconnects, we have to unplug the dedicated
|
|
// ChildDebuggerTransport...
|
|
childTransport.close();
|
|
childTransport = null;
|
|
aConnection.cancelForwarding(prefix);
|
|
|
|
// ... and notify the child process to clean the tab actors.
|
|
mm.sendAsyncMessage("debug:disconnect");
|
|
}
|
|
Services.obs.removeObserver(onMessageManagerDisconnect, "message-manager-disconnect");
|
|
});
|
|
|
|
mm.sendAsyncMessage("debug:connect", { prefix: prefix });
|
|
|
|
return deferred.promise;
|
|
},
|
|
|
|
/**
|
|
* Raises an exception if the server has not been properly initialized.
|
|
*/
|
|
_checkInit: function DS_checkInit() {
|
|
if (!this._transportInitialized) {
|
|
throw "DebuggerServer has not been initialized.";
|
|
}
|
|
|
|
if (!this.createRootActor) {
|
|
throw "Use DebuggerServer.addActors() to add a root actor implementation.";
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Create a new debugger connection for the given transport. Called after
|
|
* connectPipe(), from connectToParent, or from an incoming socket
|
|
* connection handler.
|
|
*
|
|
* If present, |aForwardingPrefix| is a forwarding prefix that a parent
|
|
* server is using to recognizes messages intended for this server. Ensure
|
|
* that all our actors have names beginning with |aForwardingPrefix + '/'|.
|
|
* In particular, the root actor's name will be |aForwardingPrefix + '/root'|.
|
|
*/
|
|
_onConnection: function DS_onConnection(aTransport, aForwardingPrefix, aNoRootActor = false) {
|
|
let connID;
|
|
if (aForwardingPrefix) {
|
|
connID = aForwardingPrefix + "/";
|
|
} else {
|
|
connID = "conn" + this._nextConnID++ + '.';
|
|
}
|
|
let conn = new DebuggerServerConnection(connID, aTransport);
|
|
this._connections[connID] = conn;
|
|
|
|
// Create a root actor for the connection and send the hello packet.
|
|
if (!aNoRootActor) {
|
|
conn.rootActor = this.createRootActor(conn);
|
|
if (aForwardingPrefix)
|
|
conn.rootActor.actorID = aForwardingPrefix + "/root";
|
|
else
|
|
conn.rootActor.actorID = "root";
|
|
conn.addActor(conn.rootActor);
|
|
aTransport.send(conn.rootActor.sayHello());
|
|
}
|
|
aTransport.ready();
|
|
|
|
this.emit("connectionchange", "opened", conn);
|
|
return conn;
|
|
},
|
|
|
|
/**
|
|
* Remove the connection from the debugging server.
|
|
*/
|
|
_connectionClosed: function DS_connectionClosed(aConnection) {
|
|
delete this._connections[aConnection.prefix];
|
|
this.emit("connectionchange", "closed", aConnection);
|
|
},
|
|
|
|
// DebuggerServer extension API.
|
|
|
|
setRootActor: function DS_setRootActor(aFunction) {
|
|
this.createRootActor = aFunction;
|
|
},
|
|
|
|
/**
|
|
* Registers handlers for new tab-scoped request types defined dynamically.
|
|
* This is used for example by add-ons to augment the functionality of the tab
|
|
* actor. Note that the name or actorPrefix of the request type is not allowed
|
|
* to clash with existing protocol packet properties, like 'title', 'url' or
|
|
* 'actor', since that would break the protocol.
|
|
*
|
|
* @param aFunction function
|
|
* The constructor function for this request type. This expects to be
|
|
* called as a constructor (i.e. with 'new'), and passed two
|
|
* arguments: the DebuggerServerConnection, and the BrowserTabActor
|
|
* with which it will be associated.
|
|
*
|
|
* @param aName string [optional]
|
|
* The name of the new request type. If this is not present, the
|
|
* actorPrefix property of the constructor prototype is used.
|
|
*/
|
|
addTabActor: function DS_addTabActor(aFunction, aName) {
|
|
let name = aName ? aName : aFunction.prototype.actorPrefix;
|
|
if (["title", "url", "actor"].indexOf(name) != -1) {
|
|
throw Error(name + " is not allowed");
|
|
}
|
|
if (DebuggerServer.tabActorFactories.hasOwnProperty(name)) {
|
|
throw Error(name + " already exists");
|
|
}
|
|
DebuggerServer.tabActorFactories[name] = aFunction;
|
|
},
|
|
|
|
/**
|
|
* Unregisters the handler for the specified tab-scoped request type.
|
|
* This may be used for example by add-ons when shutting down or upgrading.
|
|
*
|
|
* @param aFunction function
|
|
* The constructor function for this request type.
|
|
*/
|
|
removeTabActor: function DS_removeTabActor(aFunction) {
|
|
for (let name in DebuggerServer.tabActorFactories) {
|
|
let handler = DebuggerServer.tabActorFactories[name];
|
|
if (handler.name == aFunction.name) {
|
|
delete DebuggerServer.tabActorFactories[name];
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Registers handlers for new browser-scoped request types defined
|
|
* dynamically. This is used for example by add-ons to augment the
|
|
* functionality of the root actor. Note that the name or actorPrefix of the
|
|
* request type is not allowed to clash with existing protocol packet
|
|
* properties, like 'from', 'tabs' or 'selected', since that would break the
|
|
* protocol.
|
|
*
|
|
* @param aFunction function
|
|
* The constructor function for this request type. This expects to be
|
|
* called as a constructor (i.e. with 'new'), and passed two
|
|
* arguments: the DebuggerServerConnection, and the BrowserRootActor
|
|
* with which it will be associated.
|
|
*
|
|
* @param aName string [optional]
|
|
* The name of the new request type. If this is not present, the
|
|
* actorPrefix property of the constructor prototype is used.
|
|
*/
|
|
addGlobalActor: function DS_addGlobalActor(aFunction, aName) {
|
|
let name = aName ? aName : aFunction.prototype.actorPrefix;
|
|
if (["from", "tabs", "selected"].indexOf(name) != -1) {
|
|
throw Error(name + " is not allowed");
|
|
}
|
|
if (DebuggerServer.globalActorFactories.hasOwnProperty(name)) {
|
|
throw Error(name + " already exists");
|
|
}
|
|
DebuggerServer.globalActorFactories[name] = aFunction;
|
|
},
|
|
|
|
/**
|
|
* Unregisters the handler for the specified browser-scoped request type.
|
|
* This may be used for example by add-ons when shutting down or upgrading.
|
|
*
|
|
* @param aFunction function
|
|
* The constructor function for this request type.
|
|
*/
|
|
removeGlobalActor: function DS_removeGlobalActor(aFunction) {
|
|
for (let name in DebuggerServer.globalActorFactories) {
|
|
let handler = DebuggerServer.globalActorFactories[name];
|
|
if (handler.name == aFunction.name) {
|
|
delete DebuggerServer.globalActorFactories[name];
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
EventEmitter.decorate(DebuggerServer);
|
|
|
|
if (this.exports) {
|
|
exports.DebuggerServer = DebuggerServer;
|
|
}
|
|
// Needed on B2G (See header note)
|
|
this.DebuggerServer = DebuggerServer;
|
|
|
|
// When using DebuggerServer.addActors, some symbols are expected to be in
|
|
// the scope of the added actor even before the corresponding modules are
|
|
// loaded, so let's explicitly bind the expected symbols here.
|
|
let includes = ["Components", "Ci", "Cu", "require", "Services", "DebuggerServer",
|
|
"ActorPool", "DevToolsUtils"];
|
|
includes.forEach(name => {
|
|
DebuggerServer[name] = this[name];
|
|
});
|
|
|
|
// Export ActorPool for requirers of main.js
|
|
if (this.exports) {
|
|
exports.ActorPool = ActorPool;
|
|
}
|
|
|
|
/**
|
|
* Creates a new socket listener for remote connections to a given
|
|
* DebuggerServer. This helps contain and organize the parts of the server that
|
|
* may differ or are particular to one given listener mechanism vs. another.
|
|
*/
|
|
function SocketListener(server) {
|
|
this._server = server;
|
|
}
|
|
|
|
SocketListener.prototype = {
|
|
|
|
/**
|
|
* Listens on the given port or socket file for remote debugger connections.
|
|
*
|
|
* @param portOrPath int, string
|
|
* If given an integer, the port to listen on.
|
|
* Otherwise, the path to the unix socket domain file to listen on.
|
|
*/
|
|
open: function(portOrPath) {
|
|
let flags = Ci.nsIServerSocket.KeepWhenOffline;
|
|
// A preference setting can force binding on the loopback interface.
|
|
if (Services.prefs.getBoolPref("devtools.debugger.force-local")) {
|
|
flags |= Ci.nsIServerSocket.LoopbackOnly;
|
|
}
|
|
|
|
try {
|
|
let backlog = 4;
|
|
let port = Number(portOrPath);
|
|
if (port) {
|
|
this._socket = new ServerSocket(port, flags, backlog);
|
|
} else {
|
|
let file = nsFile(portOrPath);
|
|
if (file.exists())
|
|
file.remove(false);
|
|
this._socket = new UnixDomainServerSocket(file, parseInt("666", 8),
|
|
backlog);
|
|
}
|
|
this._socket.asyncListen(this);
|
|
} catch (e) {
|
|
dumpn("Could not start debugging listener on '" + portOrPath + "': " + e);
|
|
throw Cr.NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Closes the SocketListener. Notifies the server to remove the listener from
|
|
* the set of active SocketListeners.
|
|
*/
|
|
close: function() {
|
|
this._socket.close();
|
|
this._server._removeListener(this);
|
|
this._server = null;
|
|
},
|
|
|
|
/**
|
|
* Gets the port that a TCP socket listener is listening on, or null if this
|
|
* is not a TCP socket (so there is no port).
|
|
*/
|
|
get port() {
|
|
if (!this._socket) {
|
|
return null;
|
|
}
|
|
return this._socket.port;
|
|
},
|
|
|
|
// nsIServerSocketListener implementation
|
|
|
|
onSocketAccepted:
|
|
DevToolsUtils.makeInfallible(function(aSocket, aTransport) {
|
|
if (Services.prefs.getBoolPref("devtools.debugger.prompt-connection") &&
|
|
!this._server._allowConnection()) {
|
|
return;
|
|
}
|
|
dumpn("New debugging connection on " +
|
|
aTransport.host + ":" + aTransport.port);
|
|
|
|
let input = aTransport.openInputStream(0, 0, 0);
|
|
let output = aTransport.openOutputStream(0, 0, 0);
|
|
let transport = new DebuggerTransport(input, output);
|
|
this._server._onConnection(transport);
|
|
}, "SocketListener.onSocketAccepted"),
|
|
|
|
onStopListening: function(aSocket, status) {
|
|
dumpn("onStopListening, status: " + status);
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Creates a DebuggerServerConnection.
|
|
*
|
|
* Represents a connection to this debugging global from a client.
|
|
* Manages a set of actors and actor pools, allocates actor ids, and
|
|
* handles incoming requests.
|
|
*
|
|
* @param aPrefix string
|
|
* All actor IDs created by this connection should be prefixed
|
|
* with aPrefix.
|
|
* @param aTransport transport
|
|
* Packet transport for the debugging protocol.
|
|
*/
|
|
function DebuggerServerConnection(aPrefix, aTransport)
|
|
{
|
|
this._prefix = aPrefix;
|
|
this._transport = aTransport;
|
|
this._transport.hooks = this;
|
|
this._nextID = 1;
|
|
|
|
this._actorPool = new ActorPool(this);
|
|
this._extraPools = [];
|
|
|
|
// Responses to a given actor must be returned the the client
|
|
// in the same order as the requests that they're replying to, but
|
|
// Implementations might finish serving requests in a different
|
|
// order. To keep things in order we generate a promise for each
|
|
// request, chained to the promise for the request before it.
|
|
// This map stores the latest request promise in the chain, keyed
|
|
// by an actor ID string.
|
|
this._actorResponses = new Map;
|
|
|
|
/*
|
|
* We can forward packets to other servers, if the actors on that server
|
|
* all use a distinct prefix on their names. This is a map from prefixes
|
|
* to transports: it maps a prefix P to a transport T if T conveys
|
|
* packets to the server whose actors' names all begin with P + "/".
|
|
*/
|
|
this._forwardingPrefixes = new Map;
|
|
}
|
|
|
|
DebuggerServerConnection.prototype = {
|
|
_prefix: null,
|
|
get prefix() { return this._prefix },
|
|
|
|
_transport: null,
|
|
get transport() { return this._transport },
|
|
|
|
close: function() {
|
|
this._transport.close();
|
|
},
|
|
|
|
send: function DSC_send(aPacket) {
|
|
this.transport.send(aPacket);
|
|
},
|
|
|
|
/**
|
|
* Used when sending a bulk reply from an actor.
|
|
* @see DebuggerTransport.prototype.startBulkSend
|
|
*/
|
|
startBulkSend: function(header) {
|
|
return this.transport.startBulkSend(header);
|
|
},
|
|
|
|
allocID: function DSC_allocID(aPrefix) {
|
|
return this.prefix + (aPrefix || '') + this._nextID++;
|
|
},
|
|
|
|
/**
|
|
* Add a map of actor IDs to the connection.
|
|
*/
|
|
addActorPool: function DSC_addActorPool(aActorPool) {
|
|
this._extraPools.push(aActorPool);
|
|
},
|
|
|
|
/**
|
|
* Remove a previously-added pool of actors to the connection.
|
|
*
|
|
* @param ActorPool aActorPool
|
|
* The ActorPool instance you want to remove.
|
|
* @param boolean aNoCleanup [optional]
|
|
* True if you don't want to disconnect each actor from the pool, false
|
|
* otherwise.
|
|
*/
|
|
removeActorPool: function DSC_removeActorPool(aActorPool, aNoCleanup) {
|
|
let index = this._extraPools.lastIndexOf(aActorPool);
|
|
if (index > -1) {
|
|
let pool = this._extraPools.splice(index, 1);
|
|
if (!aNoCleanup) {
|
|
pool.map(function(p) { p.cleanup(); });
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Add an actor to the default actor pool for this connection.
|
|
*/
|
|
addActor: function DSC_addActor(aActor) {
|
|
this._actorPool.addActor(aActor);
|
|
},
|
|
|
|
/**
|
|
* Remove an actor to the default actor pool for this connection.
|
|
*/
|
|
removeActor: function DSC_removeActor(aActor) {
|
|
this._actorPool.removeActor(aActor);
|
|
},
|
|
|
|
/**
|
|
* Match the api expected by the protocol library.
|
|
*/
|
|
unmanage: function(aActor) {
|
|
return this.removeActor(aActor);
|
|
},
|
|
|
|
/**
|
|
* Look up an actor implementation for an actorID. Will search
|
|
* all the actor pools registered with the connection.
|
|
*
|
|
* @param aActorID string
|
|
* Actor ID to look up.
|
|
*/
|
|
getActor: function DSC_getActor(aActorID) {
|
|
let pool = this.poolFor(aActorID);
|
|
if (pool) {
|
|
return pool.get(aActorID);
|
|
}
|
|
|
|
if (aActorID === "root") {
|
|
return this.rootActor;
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
_getOrCreateActor: function(actorID) {
|
|
let actor = this.getActor(actorID);
|
|
if (!actor) {
|
|
this.transport.send({ from: actorID ? actorID : "root",
|
|
error: "noSuchActor",
|
|
message: "No such actor for ID: " + actorID });
|
|
return;
|
|
}
|
|
|
|
// Dyamically-loaded actors have to be created lazily.
|
|
if (typeof actor == "function") {
|
|
let instance;
|
|
try {
|
|
instance = new actor();
|
|
} catch (e) {
|
|
this.transport.send(this._unknownError(
|
|
"Error occurred while creating actor '" + actor.name,
|
|
e));
|
|
}
|
|
instance.parentID = actor.parentID;
|
|
// We want the newly-constructed actor to completely replace the factory
|
|
// actor. Reusing the existing actor ID will make sure ActorPool.addActor
|
|
// does the right thing.
|
|
instance.actorID = actor.actorID;
|
|
actor.registeredPool.addActor(instance);
|
|
actor = instance;
|
|
}
|
|
|
|
return actor;
|
|
},
|
|
|
|
poolFor: function DSC_actorPool(aActorID) {
|
|
if (this._actorPool && this._actorPool.has(aActorID)) {
|
|
return this._actorPool;
|
|
}
|
|
|
|
for (let pool of this._extraPools) {
|
|
if (pool.has(aActorID)) {
|
|
return pool;
|
|
}
|
|
}
|
|
return null;
|
|
},
|
|
|
|
_unknownError: function DSC__unknownError(aPrefix, aError) {
|
|
let errorString = aPrefix + ": " + DevToolsUtils.safeErrorString(aError);
|
|
reportError(errorString);
|
|
dumpn(errorString);
|
|
return {
|
|
error: "unknownError",
|
|
message: errorString
|
|
};
|
|
},
|
|
|
|
_queueResponse: function(from, type, response) {
|
|
let pendingResponse = this._actorResponses.get(from) || resolve(null);
|
|
let responsePromise = pendingResponse.then(() => {
|
|
return response;
|
|
}).then(aResponse => {
|
|
if (!aResponse.from) {
|
|
aResponse.from = from;
|
|
}
|
|
this.transport.send(aResponse);
|
|
}).then(null, (e) => {
|
|
let errorPacket = this._unknownError(
|
|
"error occurred while processing '" + type,
|
|
e);
|
|
errorPacket.from = from;
|
|
this.transport.send(errorPacket);
|
|
});
|
|
|
|
this._actorResponses.set(from, responsePromise);
|
|
},
|
|
|
|
/**
|
|
* Passes a set of options to the BrowserAddonActors for the given ID.
|
|
*
|
|
* @param aId string
|
|
* The ID of the add-on to pass the options to
|
|
* @param aOptions object
|
|
* The options.
|
|
* @return a promise that will be resolved when complete.
|
|
*/
|
|
setAddonOptions: function DSC_setAddonOptions(aId, aOptions) {
|
|
let addonList = this.rootActor._parameters.addonList;
|
|
if (!addonList) {
|
|
return resolve();
|
|
}
|
|
return addonList.getList().then((addonActors) => {
|
|
for (let actor of addonActors) {
|
|
if (actor.id != aId) {
|
|
continue;
|
|
}
|
|
actor.setOptions(aOptions);
|
|
return;
|
|
}
|
|
});
|
|
},
|
|
|
|
/* Forwarding packets to other transports based on actor name prefixes. */
|
|
|
|
/*
|
|
* Arrange to forward packets to another server. This is how we
|
|
* forward debugging connections to child processes.
|
|
*
|
|
* If we receive a packet for an actor whose name begins with |aPrefix|
|
|
* followed by '/', then we will forward that packet to |aTransport|.
|
|
*
|
|
* This overrides any prior forwarding for |aPrefix|.
|
|
*
|
|
* @param aPrefix string
|
|
* The actor name prefix, not including the '/'.
|
|
* @param aTransport object
|
|
* A packet transport to which we should forward packets to actors
|
|
* whose names begin with |(aPrefix + '/').|
|
|
*/
|
|
setForwarding: function(aPrefix, aTransport) {
|
|
this._forwardingPrefixes.set(aPrefix, aTransport);
|
|
},
|
|
|
|
/*
|
|
* Stop forwarding messages to actors whose names begin with
|
|
* |aPrefix+'/'|. Such messages will now elicit 'noSuchActor' errors.
|
|
*/
|
|
cancelForwarding: function(aPrefix) {
|
|
this._forwardingPrefixes.delete(aPrefix);
|
|
},
|
|
|
|
sendActorEvent: function (actorID, eventName, event) {
|
|
event.from = actorID;
|
|
event.type = eventName;
|
|
this.send(event);
|
|
},
|
|
|
|
// Transport hooks.
|
|
|
|
/**
|
|
* Called by DebuggerTransport to dispatch incoming packets as appropriate.
|
|
*
|
|
* @param aPacket object
|
|
* The incoming packet.
|
|
*/
|
|
onPacket: function DSC_onPacket(aPacket) {
|
|
// If the actor's name begins with a prefix we've been asked to
|
|
// forward, do so.
|
|
//
|
|
// Note that the presence of a prefix alone doesn't indicate that
|
|
// forwarding is needed: in DebuggerServerConnection instances in child
|
|
// processes, every actor has a prefixed name.
|
|
if (this._forwardingPrefixes.size > 0) {
|
|
let separator = aPacket.to.indexOf('/');
|
|
if (separator >= 0) {
|
|
let forwardTo = this._forwardingPrefixes.get(aPacket.to.substring(0, separator));
|
|
if (forwardTo) {
|
|
forwardTo.send(aPacket);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
let actor = this._getOrCreateActor(aPacket.to);
|
|
if (!actor) {
|
|
return;
|
|
}
|
|
|
|
var ret = null;
|
|
|
|
// handle "requestTypes" RDP request.
|
|
if (aPacket.type == "requestTypes") {
|
|
ret = { from: actor.actorID, requestTypes: Object.keys(actor.requestTypes) };
|
|
} else if (actor.requestTypes && actor.requestTypes[aPacket.type]) {
|
|
// Dispatch the request to the actor.
|
|
try {
|
|
this.currentPacket = aPacket;
|
|
ret = actor.requestTypes[aPacket.type].bind(actor)(aPacket, this);
|
|
} catch(e) {
|
|
this.transport.send(this._unknownError(
|
|
"error occurred while processing '" + aPacket.type,
|
|
e));
|
|
} finally {
|
|
this.currentPacket = undefined;
|
|
}
|
|
} else {
|
|
ret = { error: "unrecognizedPacketType",
|
|
message: ("Actor " + actor.actorID +
|
|
" does not recognize the packet type " +
|
|
aPacket.type) };
|
|
}
|
|
|
|
// There will not be a return value if a bulk reply is sent.
|
|
if (ret) {
|
|
this._queueResponse(aPacket.to, aPacket.type, ret);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Called by the DebuggerTransport to dispatch incoming bulk packets as
|
|
* appropriate.
|
|
*
|
|
* @param packet object
|
|
* The incoming packet, which contains:
|
|
* * actor: Name of actor that will receive the packet
|
|
* * type: Name of actor's method that should be called on receipt
|
|
* * length: Size of the data to be read
|
|
* * stream: This input stream should only be used directly if you can
|
|
* ensure that you will read exactly |length| bytes and will
|
|
* not close the stream when reading is complete
|
|
* * done: If you use the stream directly (instead of |copyTo|
|
|
* below), you must signal completion by resolving /
|
|
* rejecting this deferred. If it's rejected, the transport
|
|
* will be closed. If an Error is supplied as a rejection
|
|
* value, it will be logged via |dumpn|. If you do use
|
|
* |copyTo|, resolving is taken care of for you when copying
|
|
* completes.
|
|
* * copyTo: A helper function for getting your data out of the stream
|
|
* that meets the stream handling requirements above, and has
|
|
* the following signature:
|
|
* @param output nsIAsyncOutputStream
|
|
* The stream to copy to.
|
|
* @return Promise
|
|
* The promise is resolved when copying completes or rejected
|
|
* if any (unexpected) errors occur.
|
|
* This object also emits "progress" events for each chunk
|
|
* that is copied. See stream-utils.js.
|
|
*/
|
|
onBulkPacket: function(packet) {
|
|
let { actor: actorKey, type, length } = packet;
|
|
|
|
let actor = this._getOrCreateActor(actorKey);
|
|
if (!actor) {
|
|
return;
|
|
}
|
|
|
|
// Dispatch the request to the actor.
|
|
let ret;
|
|
if (actor.requestTypes && actor.requestTypes[type]) {
|
|
try {
|
|
ret = actor.requestTypes[type].call(actor, packet);
|
|
} catch(e) {
|
|
this.transport.send(this._unknownError(
|
|
"error occurred while processing bulk packet '" + type, e));
|
|
packet.done.reject(e);
|
|
}
|
|
} else {
|
|
let message = "Actor " + actorKey +
|
|
" does not recognize the bulk packet type " + type;
|
|
ret = { error: "unrecognizedPacketType",
|
|
message: message };
|
|
packet.done.reject(new Error(message));
|
|
}
|
|
|
|
// If there is a JSON response, queue it for sending back to the client.
|
|
if (ret) {
|
|
this._queueResponse(actorKey, type, ret);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Called by DebuggerTransport when the underlying stream is closed.
|
|
*
|
|
* @param aStatus nsresult
|
|
* The status code that corresponds to the reason for closing
|
|
* the stream.
|
|
*/
|
|
onClosed: function DSC_onClosed(aStatus) {
|
|
dumpn("Cleaning up connection.");
|
|
if (!this._actorPool) {
|
|
// Ignore this call if the connection is already closed.
|
|
return;
|
|
}
|
|
events.emit(this, "closed", aStatus);
|
|
|
|
this._actorPool.cleanup();
|
|
this._actorPool = null;
|
|
this._extraPools.map(function(p) { p.cleanup(); });
|
|
this._extraPools = null;
|
|
|
|
DebuggerServer._connectionClosed(this);
|
|
},
|
|
|
|
/*
|
|
* Debugging helper for inspecting the state of the actor pools.
|
|
*/
|
|
_dumpPools: function DSC_dumpPools() {
|
|
dumpn("/-------------------- dumping pools:");
|
|
if (this._actorPool) {
|
|
dumpn("--------------------- actorPool actors: " +
|
|
uneval(Object.keys(this._actorPool._actors)));
|
|
}
|
|
for each (let pool in this._extraPools)
|
|
dumpn("--------------------- extraPool actors: " +
|
|
uneval(Object.keys(pool._actors)));
|
|
},
|
|
|
|
/*
|
|
* Debugging helper for inspecting the state of an actor pool.
|
|
*/
|
|
_dumpPool: function DSC_dumpPools(aPool) {
|
|
dumpn("/-------------------- dumping pool:");
|
|
dumpn("--------------------- actorPool actors: " +
|
|
uneval(Object.keys(aPool._actors)));
|
|
}
|
|
};
|