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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* This XPCOM component is loaded very early.
* It handles command line arguments like -jsconsole, but also ensures starting
* core modules like 'devtools-browser.js' that hooks the browser windows
* and ensure setting up tools.
*
* Be careful to lazy load dependencies as much as possible.
**/
"use strict";
const { interfaces: Ci, utils: Cu } = Components;
const kDebuggerPrefs = [
"devtools.debugger.remote-enabled",
"devtools.chrome.enabled"
];
const { XPCOMUtils } = Cu.import("resource://gre/modules/XPCOMUtils.jsm", {});
XPCOMUtils.defineLazyModuleGetter(this, "Services", "resource://gre/modules/Services.jsm");
function DevToolsStartup() {}
DevToolsStartup.prototype = {
handle: function (cmdLine) {
let consoleFlag = cmdLine.handleFlag("jsconsole", false);
let debuggerFlag = cmdLine.handleFlag("jsdebugger", false);
let devtoolsFlag = cmdLine.handleFlag("devtools", false);
if (consoleFlag) {
this.handleConsoleFlag(cmdLine);
}
if (debuggerFlag) {
this.handleDebuggerFlag(cmdLine);
}
let debuggerServerFlag;
try {
debuggerServerFlag =
cmdLine.handleFlagWithParam("start-debugger-server", false);
} catch (e) {
// We get an error if the option is given but not followed by a value.
// By catching and trying again, the value is effectively optional.
debuggerServerFlag = cmdLine.handleFlag("start-debugger-server", false);
}
if (debuggerServerFlag) {
this.handleDebuggerServerFlag(cmdLine, debuggerServerFlag);
}
let onStartup = function (window) {
Services.obs.removeObserver(onStartup,
"browser-delayed-startup-finished");
// Ensure loading core module once firefox is ready
this.initDevTools();
if (devtoolsFlag) {
this.handleDevToolsFlag(window);
}
}.bind(this);
Services.obs.addObserver(onStartup, "browser-delayed-startup-finished",
false);
},
initDevTools: function () {
let { loader } = Cu.import("resource://devtools/shared/Loader.jsm", {});
// Ensure loading main devtools module that hooks up into browser UI
// and initialize all devtools machinery.
loader.require("devtools/client/framework/devtools-browser");
},
handleConsoleFlag: function (cmdLine) {
let window = Services.wm.getMostRecentWindow("devtools:webconsole");
if (!window) {
this.initDevTools();
let { require } = Cu.import("resource://devtools/shared/Loader.jsm", {});
let hudservice = require("devtools/client/webconsole/hudservice");
let { console } = Cu.import("resource://gre/modules/Console.jsm", {});
hudservice.toggleBrowserConsole().then(null, console.error);
} else {
// the Browser Console was already open
window.focus();
}
if (cmdLine.state == Ci.nsICommandLine.STATE_REMOTE_AUTO) {
cmdLine.preventDefault = true;
}
},
// Open the toolbox on the selected tab once the browser starts up.
handleDevToolsFlag: function (window) {
const {require} = Cu.import("resource://devtools/shared/Loader.jsm", {});
const {gDevTools} = require("devtools/client/framework/devtools");
const {TargetFactory} = require("devtools/client/framework/target");
let target = TargetFactory.forTab(window.gBrowser.selectedTab);
gDevTools.showToolbox(target);
},
_isRemoteDebuggingEnabled() {
let remoteDebuggingEnabled = false;
try {
remoteDebuggingEnabled = kDebuggerPrefs.every(pref => {
return Services.prefs.getBoolPref(pref);
});
} catch (ex) {
console.error(ex);
return false;
}
if (!remoteDebuggingEnabled) {
let errorMsg = "Could not run chrome debugger! You need the following " +
"prefs to be set to true: " + kDebuggerPrefs.join(", ");
console.error(new Error(errorMsg));
// Dump as well, as we're doing this from a commandline, make sure people
// don't miss it:
dump(errorMsg + "\n");
}
return remoteDebuggingEnabled;
},
handleDebuggerFlag: function (cmdLine) {
if (!this._isRemoteDebuggingEnabled()) {
return;
}
const { BrowserToolboxProcess } = Cu.import("resource://devtools/client/framework/ToolboxProcess.jsm", {});
BrowserToolboxProcess.init();
if (cmdLine.state == Ci.nsICommandLine.STATE_REMOTE_AUTO) {
cmdLine.preventDefault = true;
}
},
/**
* Handle the --start-debugger-server command line flag. The options are:
* --start-debugger-server
* The portOrPath parameter is boolean true in this case. Reads and uses the defaults
* from devtools.debugger.remote-port and devtools.debugger.remote-websocket prefs.
* The default values of these prefs are port 6000, WebSocket disabled.
*
* --start-debugger-server 6789
* Start the non-WebSocket server on port 6789.
*
* --start-debugger-server /path/to/filename
* Start the server on a Unix domain socket.
*
* --start-debugger-server ws:6789
* Start the WebSocket server on port 6789.
*
* --start-debugger-server ws:
* Start the WebSocket server on the default port (taken from d.d.remote-port)
*/
handleDebuggerServerFlag: function (cmdLine, portOrPath) {
if (!this._isRemoteDebuggingEnabled()) {
return;
}
let webSocket = false;
let defaultPort = Services.prefs.getIntPref("devtools.debugger.remote-port");
if (portOrPath === true) {
// Default to pref values if no values given on command line
webSocket = Services.prefs.getBoolPref("devtools.debugger.remote-websocket");
portOrPath = defaultPort;
} else if (portOrPath.startsWith("ws:")) {
webSocket = true;
let port = portOrPath.slice(3);
portOrPath = Number(port) ? port : defaultPort;
}
let { DevToolsLoader } =
Cu.import("resource://devtools/shared/Loader.jsm", {});
try {
// Create a separate loader instance, so that we can be sure to receive
// a separate instance of the DebuggingServer from the rest of the
// devtools. This allows us to safely use the tools against even the
// actors and DebuggingServer itself, especially since we can mark
// serverLoader as invisible to the debugger (unlike the usual loader
// settings).
let serverLoader = new DevToolsLoader();
serverLoader.invisibleToDebugger = true;
let { DebuggerServer: debuggerServer } =
serverLoader.require("devtools/server/main");
debuggerServer.init();
debuggerServer.addBrowserActors();
debuggerServer.allowChromeProcess = true;
let listener = debuggerServer.createListener();
listener.portOrPath = portOrPath;
listener.webSocket = webSocket;
listener.open();
dump("Started debugger server on " + portOrPath + "\n");
} catch (e) {
let _error = "Unable to start debugger server on " + portOrPath + ": "
+ e;
Cu.reportError(_error);
dump(_error + "\n");
}
if (cmdLine.state == Ci.nsICommandLine.STATE_REMOTE_AUTO) {
cmdLine.preventDefault = true;
}
},
/* eslint-disable max-len */
helpInfo: " --jsconsole Open the Browser Console.\n" +
" --jsdebugger Open the Browser Toolbox.\n" +
" --devtools Open DevTools on initial load.\n" +
" --start-debugger-server [ws:][<port>|<path>] Start the debugger server on\n" +
" a TCP port or Unix domain socket path.\n" +
" Defaults to TCP port 6000.\n" +
" Use WebSocket protocol if ws: prefix\n" +
" is specified.\n",
/* eslint-disable max-len */
classID: Components.ID("{9e9a9283-0ce9-4e4a-8f1c-ba129a032c32}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsICommandLineHandler]),
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(
[DevToolsStartup]);
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