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- const CLASSNAME = "GM_GreasemonkeyService";
- const CONTRACTID = "@greasemonkey.mozdev.org/greasemonkey-service;1";
- const CID = Components.ID("{77bf3650-1cd6-11da-8cd6-0800200c9a66}");
-
- const Cc = Components.classes;
- const Ci = Components.interfaces;
-
- const appSvc = Cc["@mozilla.org/appshell/appShellService;1"]
- .getService(Ci.nsIAppShellService);
-
- const gmSvcFilename = Components.stack.filename;
-
- function alert(msg) {
- Cc["@mozilla.org/embedcomp/prompt-service;1"]
- .getService(Ci.nsIPromptService)
- .alert(null, "Greasemonkey alert", msg);
- }
-
- // Examines the stack to determine if an API should be callable.
- function GM_apiLeakCheck(apiName) {
- var stack = Components.stack;
-
- do {
- // Valid stack frames for GM api calls are: native and js when coming from
- // chrome:// URLs and the greasemonkey.js component's file:// URL.
- if (2 == stack.language) {
- // NOTE: In FF 2.0.0.0, I saw that stack.filename can be null for JS/XPCOM
- // services. This didn't happen in FF 2.0.0.11; I'm not sure when it
- // changed.
- if (stack.filename != null &&
- stack.filename != gmSvcFilename &&
- stack.filename.substr(0, 6) != "chrome") {
- GM_logError(new Error("Greasemonkey access violation: unsafeWindow " +
- "cannot call " + apiName + "."));
- return false;
- }
- }
-
- stack = stack.caller;
- } while (stack);
-
- return true;
- }
-
- var greasemonkeyService = {
- _config: null,
- get config() {
- if (!this._config)
- this._config = new Config();
- return this._config;
- },
- browserWindows: [],
- updater: null,
-
-
- // nsISupports
- QueryInterface: function(aIID) {
- if (!aIID.equals(Ci.nsIObserver) &&
- !aIID.equals(Ci.nsISupports) &&
- !aIID.equals(Ci.nsISupportsWeakReference) &&
- !aIID.equals(Ci.gmIGreasemonkeyService) &&
- !aIID.equals(Ci.nsIWindowMediatorListener) &&
- !aIID.equals(Ci.nsIContentPolicy)) {
- throw Components.results.NS_ERROR_NO_INTERFACE;
- }
-
- return this;
- },
-
-
- // nsIObserver
- observe: function(aSubject, aTopic, aData) {
- if (aTopic == "app-startup") {
- this.startup();
- }
- },
-
-
- // gmIGreasemonkeyService
- registerBrowser: function(browserWin) {
- var existing;
-
- for (var i = 0; existing = this.browserWindows[i]; i++) {
- if (existing == browserWin) {
- // NOTE: Unlocalised strings
- throw new Error("Browser window has already been registered.");
- }
- }
-
- this.browserWindows.push(browserWin);
- },
-
- unregisterBrowser: function(browserWin) {
- var existing;
-
- for (var i = 0; existing = this.browserWindows[i]; i++) {
- if (existing == browserWin) {
- this.browserWindows.splice(i, 1);
- return;
- }
- }
-
- throw new Error("Browser window is not registered.");
- },
-
- domContentLoaded: function(wrappedContentWin, chromeWin) {
- var unsafeWin = wrappedContentWin.wrappedJSObject;
- var unsafeLoc = new XPCNativeWrapper(unsafeWin, "location").location;
- var href = new XPCNativeWrapper(unsafeLoc, "href").href;
- var scripts = this.initScripts(href);
-
- if (scripts.length > 0) {
- this.injectScripts(scripts, href, unsafeWin, chromeWin);
- }
-
- // Need to wait until well after startup for prefs store and extension
- // manager to be initialized. First page load is a convenient place.
- if (!this.updater) {
- // Note: the param to this has to match the extension ID in install.rdf
- this.updater = new ExtensionUpdater(
- "{e4a8a97b-f2ed-450b-b12d-ee082ba24781}");
- this.updater.updatePeriodically();
- }
- },
-
-
- startup: function() {
- Cc["@mozilla.org/moz/jssubscript-loader;1"]
- .getService(Ci.mozIJSSubScriptLoader)
- .loadSubScript("chrome://global/content/XPCNativeWrapper.js");
-
- Cc["@mozilla.org/moz/jssubscript-loader;1"]
- .getService(Ci.mozIJSSubScriptLoader)
- .loadSubScript("chrome://greasemonkey/content/prefmanager.js");
-
- Cc["@mozilla.org/moz/jssubscript-loader;1"]
- .getService(Ci.mozIJSSubScriptLoader)
- .loadSubScript("chrome://greasemonkey/content/utils.js");
-
- Cc["@mozilla.org/moz/jssubscript-loader;1"]
- .getService(Ci.mozIJSSubScriptLoader)
- .loadSubScript("chrome://greasemonkey/content/config.js");
-
- Cc["@mozilla.org/moz/jssubscript-loader;1"]
- .getService(Ci.mozIJSSubScriptLoader)
- .loadSubScript("chrome://greasemonkey/content/convert2RegExp.js");
-
- Cc["@mozilla.org/moz/jssubscript-loader;1"]
- .getService(Ci.mozIJSSubScriptLoader)
- .loadSubScript("chrome://greasemonkey/content/miscapis.js");
-
- Cc["@mozilla.org/moz/jssubscript-loader;1"]
- .getService(Ci.mozIJSSubScriptLoader)
- .loadSubScript("chrome://greasemonkey/content/xmlhttprequester.js");
-
- Cc["@mozilla.org/moz/jssubscript-loader;1"]
- .getService(Ci.mozIJSSubScriptLoader)
- .loadSubScript("chrome://greasemonkey/content/updater.js");
-
- //loggify(this, "GM_GreasemonkeyService");
- },
-
- shouldLoad: function(ct, cl, org, ctx, mt, ext) {
- var ret = Ci.nsIContentPolicy.ACCEPT;
-
- // block content detection of greasemonkey by denying GM
- // chrome content, unless loaded from chrome
- if (org && org.scheme != "chrome" && cl.scheme == "chrome" &&
- cl.host == "greasemonkey") {
- return Ci.nsIContentPolicy.REJECT_SERVER;
- }
-
- // don't intercept anything when GM is not enabled
- if (!GM_getEnabled()) {
- return ret;
- }
-
- // don't interrupt the view-source: scheme
- // (triggered if the link in the error console is clicked)
- if ("view-source" == cl.scheme) {
- return ret;
- }
-
- if (ct == Ci.nsIContentPolicy.TYPE_DOCUMENT &&
- cl.spec.match(/\.user\.js$/)) {
-
- dump("shouldload: " + cl.spec + "\n");
- dump("ignorescript: " + this.ignoreNextScript_ + "\n");
-
- if (!this.ignoreNextScript_) {
- if (!this.isTempScript(cl)) {
- var winWat = Cc["@mozilla.org/embedcomp/window-watcher;1"]
- .getService(Ci.nsIWindowWatcher);
-
- if (winWat.activeWindow && winWat.activeWindow.GM_BrowserUI) {
- winWat.activeWindow.GM_BrowserUI.startInstallScript(cl);
- ret = Ci.nsIContentPolicy.REJECT_REQUEST;
- }
- }
- }
- }
-
- this.ignoreNextScript_ = false;
- return ret;
- },
-
- shouldProcess: function(ct, cl, org, ctx, mt, ext) {
- return Ci.nsIContentPolicy.ACCEPT;
- },
-
- ignoreNextScript: function() {
- dump("ignoring next script...\n");
- this.ignoreNextScript_ = true;
- },
-
- isTempScript: function(uri) {
- if (uri.scheme != "file") {
- return false;
- }
-
- var fph = Components.classes["@mozilla.org/network/protocol;1?name=file"]
- .getService(Ci.nsIFileProtocolHandler);
-
- var file = fph.getFileFromURLSpec(uri.spec);
- var tmpDir = Components.classes["@mozilla.org/file/directory_service;1"]
- .getService(Components.interfaces.nsIProperties)
- .get("TmpD", Components.interfaces.nsILocalFile);
-
- return file.parent.equals(tmpDir) && file.leafName != "newscript.user.js";
- },
-
- initScripts: function(url) {
- function testMatch(script) {
- return script.enabled && script.matchesURL(url);
- }
-
- return GM_getConfig().getMatchingScripts(testMatch);
- },
-
- injectScripts: function(scripts, url, unsafeContentWin, chromeWin) {
- var sandbox;
- var script;
- var logger;
- var console;
- var storage;
- var xmlhttpRequester;
- var resources;
- var safeWin = new XPCNativeWrapper(unsafeContentWin);
- var safeDoc = safeWin.document;
-
- // detect and grab reference to firebug console and context, if it exists
- var firebugConsole = this.getFirebugConsole(unsafeContentWin, chromeWin);
-
- for (var i = 0; script = scripts[i]; i++) {
- sandbox = new Components.utils.Sandbox(safeWin);
-
- logger = new GM_ScriptLogger(script);
-
- console = firebugConsole ? firebugConsole : new GM_console(script);
-
- storage = new GM_ScriptStorage(script);
- xmlhttpRequester = new GM_xmlhttpRequester(unsafeContentWin,
- appSvc.hiddenDOMWindow);
- resources = new GM_Resources(script);
-
- sandbox.window = safeWin;
- sandbox.document = sandbox.window.document;
- sandbox.unsafeWindow = unsafeContentWin;
-
- // hack XPathResult since that is so commonly used
- sandbox.XPathResult = Ci.nsIDOMXPathResult;
-
- // add our own APIs
- sandbox.GM_addStyle = function(css) { GM_addStyle(safeDoc, css) };
- sandbox.GM_log = GM_hitch(logger, "log");
- sandbox.console = console;
- sandbox.GM_setValue = GM_hitch(storage, "setValue");
- sandbox.GM_getValue = GM_hitch(storage, "getValue");
- sandbox.GM_getResourceURL = GM_hitch(resources, "getResourceURL");
- sandbox.GM_getResourceText = GM_hitch(resources, "getResourceText");
- sandbox.GM_openInTab = GM_hitch(this, "openInTab", unsafeContentWin);
- sandbox.GM_xmlhttpRequest = GM_hitch(xmlhttpRequester,
- "contentStartRequest");
- sandbox.GM_registerMenuCommand = GM_hitch(this,
- "registerMenuCommand",
- unsafeContentWin);
-
- sandbox.__proto__ = safeWin;
-
- var contents = script.textContent;
-
- var requires = [];
- var offsets = [];
- var offset = 0;
-
- script.requires.forEach(function(req){
- var contents = req.textContent;
- var lineCount = contents.split("\n").length;
- requires.push(contents);
- offset += lineCount;
- offsets.push(offset);
- })
- script.offsets = offsets;
-
- var scriptSrc = "\n" + // error line-number calculations depend on these
- requires.join("\n") +
- "\n" +
- contents +
- "\n";
- if (!this.evalInSandbox(scriptSrc, url, sandbox, script))
- this.evalInSandbox("(function(){"+ scriptSrc +"})()",
- url, sandbox, script);
- }
- },
-
- registerMenuCommand: function(unsafeContentWin, commandName, commandFunc,
- accelKey, accelModifiers, accessKey) {
- var command = {name: commandName,
- accelKey: accelKey,
- accelModifiers: accelModifiers,
- accessKey: accessKey,
- doCommand: commandFunc,
- window: unsafeContentWin };
-
- for (var i = 0; i < this.browserWindows.length; i++) {
- this.browserWindows[i].registerMenuCommand(command);
- }
- },
-
- openInTab: function(unsafeContentWin, url) {
- var unsafeTop = new XPCNativeWrapper(unsafeContentWin, "top").top;
-
- for (var i = 0; i < this.browserWindows.length; i++) {
- this.browserWindows[i].openInTab(unsafeTop, url);
- }
- },
-
- evalInSandbox: function(code, codebase, sandbox, script) {
- if (!(Components.utils && Components.utils.Sandbox)) {
- var e = new Error("Could not create sandbox.");
- GM_logError(e, 0, e.fileName, e.lineNumber);
- } else {
- try {
- // workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=307984
- var lineFinder = new Error();
- Components.utils.evalInSandbox(code, sandbox);
- } catch (e) {
- if ("return not in function" == e.message) // pre-0.8 GM compat:
- return false; // this script depends on the function enclosure
-
- // try to find the line of the actual error line
- var line = e.lineNumber;
- if (4294967295 == line) {
- // Line number is reported as max int in edge cases. Sometimes
- // the right one is in the "location", instead. Look there.
- if (e.location && e.location.lineNumber) {
- line = e.location.lineNumber;
- } else {
- // Reporting max int is useless, if we couldn't find it in location
- // either, forget it. Value of 0 isn't shown in the console.
- line = 0;
- }
- }
-
- if (line) {
- var err = this.findError(script, line - lineFinder.lineNumber - 1);
- GM_logError(
- e, // error obj
- 0, // 0 = error (1 = warning)
- err.uri,
- err.lineNumber
- );
- } else {
- GM_logError(
- e, // error obj
- 0, // 0 = error (1 = warning)
- script.fileURL,
- 0
- );
- }
- }
- }
- return true; // did not need a (function() {...})() enclosure.
- },
-
- findError: function(script, lineNumber){
- var start = 0;
- var end = 1;
-
- for (var i = 0; i < script.offsets.length; i++) {
- end = script.offsets[i];
- if (lineNumber < end) {
- return {
- uri: script.requires[i].fileURL,
- lineNumber: (lineNumber - start)
- };
- }
- start = end;
- }
-
- return {
- uri: script.fileURL,
- lineNumber: (lineNumber - end)
- };
- },
-
- getFirebugConsole: function(unsafeContentWin, chromeWin) {
- var firebugConsoleCtor = null;
- var firebugContext = null;
-
- if (chromeWin && chromeWin.FirebugConsole) {
- firebugConsoleCtor = chromeWin.FirebugConsole;
- firebugContext = chromeWin.top.TabWatcher
- .getContextByWindow(unsafeContentWin);
-
- // on first load (of multiple tabs) the context might not exist
- if (!firebugContext) firebugConsoleCtor = null;
- }
-
- if (firebugConsoleCtor && firebugContext) {
- return new firebugConsoleCtor(firebugContext, unsafeContentWin);
- } else {
- return null;
- }
- }
- };
-
- greasemonkeyService.wrappedJSObject = greasemonkeyService;
-
- //loggify(greasemonkeyService, "greasemonkeyService");
-
-
-
- /**
- * XPCOM Registration goop
- */
- var Module = new Object();
-
- Module.registerSelf = function(compMgr, fileSpec, location, type) {
- compMgr = compMgr.QueryInterface(Ci.nsIComponentRegistrar);
- compMgr.registerFactoryLocation(CID,
- CLASSNAME,
- CONTRACTID,
- fileSpec,
- location,
- type);
-
- var catMgr = Cc["@mozilla.org/categorymanager;1"]
- .getService(Ci.nsICategoryManager);
-
- catMgr.addCategoryEntry("app-startup",
- CLASSNAME,
- CONTRACTID,
- true,
- true);
-
- catMgr.addCategoryEntry("content-policy",
- CONTRACTID,
- CONTRACTID,
- true,
- true);
- };
-
- Module.getClassObject = function(compMgr, cid, iid) {
- if (!cid.equals(CID)) {
- throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
- }
-
- if (!iid.equals(Ci.nsIFactory)) {
- throw Components.results.NS_ERROR_NO_INTERFACE;
- }
-
- return Factory;
- };
-
- Module.canUnload = function(compMgr) {
- return true;
- };
-
-
- var Factory = new Object();
-
- Factory.createInstance = function(outer, iid) {
- if (outer != null) {
- throw Components.results.NS_ERROR_NO_AGGREGATION;
- }
-
- return greasemonkeyService;
- };
-
-
- function NSGetModule(compMgr, fileSpec) {
- return Module;
- }
-
- //loggify(Module, "greasemonkeyService:Module");
- //loggify(Factory, "greasemonkeyService:Factory");
-