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Diffstat (limited to '')
| -rw-r--r-- | browser/modules/BrowserUsageTelemetry.jsm | 1381 |
1 files changed, 1381 insertions, 0 deletions
diff --git a/browser/modules/BrowserUsageTelemetry.jsm b/browser/modules/BrowserUsageTelemetry.jsm new file mode 100644 index 0000000000..7d720062f9 --- /dev/null +++ b/browser/modules/BrowserUsageTelemetry.jsm @@ -0,0 +1,1381 @@ +/* -*- js-indent-level: 2; indent-tabs-mode: nil -*- */ +/* 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/. */ + +"use strict"; + +var EXPORTED_SYMBOLS = [ + "BrowserUsageTelemetry", + "getUniqueDomainsVisitedInPast24Hours", + "URICountListener", + "MINIMUM_TAB_COUNT_INTERVAL_MS", +]; + +const { XPCOMUtils } = ChromeUtils.importESModule( + "resource://gre/modules/XPCOMUtils.sys.mjs" +); +const { AppConstants } = ChromeUtils.importESModule( + "resource://gre/modules/AppConstants.sys.mjs" +); + +const lazy = {}; + +ChromeUtils.defineESModuleGetters(lazy, { + ClientID: "resource://gre/modules/ClientID.sys.mjs", + PrivateBrowsingUtils: "resource://gre/modules/PrivateBrowsingUtils.sys.mjs", + SearchSERPTelemetry: "resource:///modules/SearchSERPTelemetry.sys.mjs", + clearInterval: "resource://gre/modules/Timer.sys.mjs", + clearTimeout: "resource://gre/modules/Timer.sys.mjs", + setInterval: "resource://gre/modules/Timer.sys.mjs", + setTimeout: "resource://gre/modules/Timer.sys.mjs", +}); + +XPCOMUtils.defineLazyModuleGetters(lazy, { + CustomizableUI: "resource:///modules/CustomizableUI.jsm", + PageActions: "resource:///modules/PageActions.jsm", + WindowsInstallsInfo: + "resource://gre/modules/components-utils/WindowsInstallsInfo.jsm", +}); + +// This pref is in seconds! +XPCOMUtils.defineLazyPreferenceGetter( + lazy, + "gRecentVisitedOriginsExpiry", + "browser.engagement.recent_visited_origins.expiry" +); + +// The upper bound for the count of the visited unique domain names. +const MAX_UNIQUE_VISITED_DOMAINS = 100; + +// Observed topic names. +const TAB_RESTORING_TOPIC = "SSTabRestoring"; +const TELEMETRY_SUBSESSIONSPLIT_TOPIC = + "internal-telemetry-after-subsession-split"; +const DOMWINDOW_OPENED_TOPIC = "domwindowopened"; + +// Probe names. +const MAX_TAB_COUNT_SCALAR_NAME = "browser.engagement.max_concurrent_tab_count"; +const MAX_WINDOW_COUNT_SCALAR_NAME = + "browser.engagement.max_concurrent_window_count"; +const TAB_OPEN_EVENT_COUNT_SCALAR_NAME = + "browser.engagement.tab_open_event_count"; +const MAX_TAB_PINNED_COUNT_SCALAR_NAME = + "browser.engagement.max_concurrent_tab_pinned_count"; +const TAB_PINNED_EVENT_COUNT_SCALAR_NAME = + "browser.engagement.tab_pinned_event_count"; +const WINDOW_OPEN_EVENT_COUNT_SCALAR_NAME = + "browser.engagement.window_open_event_count"; +const UNIQUE_DOMAINS_COUNT_SCALAR_NAME = + "browser.engagement.unique_domains_count"; +const TOTAL_URI_COUNT_SCALAR_NAME = "browser.engagement.total_uri_count"; +const UNFILTERED_URI_COUNT_SCALAR_NAME = + "browser.engagement.unfiltered_uri_count"; +const TOTAL_URI_COUNT_NORMAL_AND_PRIVATE_MODE_SCALAR_NAME = + "browser.engagement.total_uri_count_normal_and_private_mode"; + +const CONTENT_PROCESS_COUNT = "CONTENT_PROCESS_COUNT"; +const CONTENT_PROCESS_PRECISE_COUNT = "CONTENT_PROCESS_PRECISE_COUNT"; + +const MINIMUM_TAB_COUNT_INTERVAL_MS = 5 * 60 * 1000; // 5 minutes, in ms +const CONTENT_PROCESS_COUNT_INTERVAL_MS = 5 * 60 * 1000; + +// The elements we consider to be interactive. +const UI_TARGET_ELEMENTS = [ + "menuitem", + "toolbarbutton", + "key", + "command", + "checkbox", + "input", + "button", + "image", + "radio", + "richlistitem", +]; + +// The containers of interactive elements that we care about and their pretty +// names. These should be listed in order of most-specific to least-specific, +// when iterating JavaScript will guarantee that ordering and so we will find +// the most specific area first. +const BROWSER_UI_CONTAINER_IDS = { + "toolbar-menubar": "menu-bar", + TabsToolbar: "tabs-bar", + PersonalToolbar: "bookmarks-bar", + "appMenu-popup": "app-menu", + tabContextMenu: "tabs-context", + contentAreaContextMenu: "content-context", + "widget-overflow-list": "overflow-menu", + "widget-overflow-fixed-list": "pinned-overflow-menu", + "page-action-buttons": "pageaction-urlbar", + pageActionPanel: "pageaction-panel", + "unified-extensions-area": "unified-extensions-area", + + // This should appear last as some of the above are inside the nav bar. + "nav-bar": "nav-bar", +}; + +// A list of the expected panes in about:preferences +const PREFERENCES_PANES = [ + "paneHome", + "paneGeneral", + "panePrivacy", + "paneSearch", + "paneSearchResults", + "paneSync", + "paneContainers", + "paneExperimental", + "paneMoreFromMozilla", +]; + +const IGNORABLE_EVENTS = new WeakMap(); + +const KNOWN_ADDONS = []; + +// Buttons that, when clicked, set a preference to true. The convention +// is that the preference is named: +// +// browser.engagement.<button id>.has-used +// +// and is defaulted to false. +const SET_USAGE_PREF_BUTTONS = [ + "downloads-button", + "fxa-toolbar-menu-button", + "home-button", + "sidebar-button", + "library-button", +]; + +// Buttons that, when clicked, increase a counter. The convention +// is that the preference is named: +// +// browser.engagement.<button id>.used-count +// +// and doesn't have a default value. +const SET_USAGECOUNT_PREF_BUTTONS = [ + "pageAction-panel-copyURL", + "pageAction-panel-emailLink", + "pageAction-panel-pinTab", + "pageAction-panel-screenshots_mozilla_org", + "pageAction-panel-shareURL", +]; + +function telemetryId(widgetId, obscureAddons = true) { + // Add-on IDs need to be obscured. + function addonId(id) { + if (!obscureAddons) { + return id; + } + + let pos = KNOWN_ADDONS.indexOf(id); + if (pos < 0) { + pos = KNOWN_ADDONS.length; + KNOWN_ADDONS.push(id); + } + return `addon${pos}`; + } + + if (widgetId.endsWith("-browser-action")) { + widgetId = addonId( + widgetId.substring(0, widgetId.length - "-browser-action".length) + ); + } else if (widgetId.startsWith("pageAction-")) { + let actionId; + if (widgetId.startsWith("pageAction-urlbar-")) { + actionId = widgetId.substring("pageAction-urlbar-".length); + } else if (widgetId.startsWith("pageAction-panel-")) { + actionId = widgetId.substring("pageAction-panel-".length); + } + + if (actionId) { + let action = lazy.PageActions.actionForID(actionId); + widgetId = action?._isMozillaAction ? actionId : addonId(actionId); + } + } else if (widgetId.startsWith("ext-keyset-id-")) { + // Webextension command shortcuts don't have an id on their key element so + // we see the id from the keyset that contains them. + widgetId = addonId(widgetId.substring("ext-keyset-id-".length)); + } else if (widgetId.startsWith("ext-key-id-")) { + // The command for a webextension sidebar action is an exception to the above rule. + widgetId = widgetId.substring("ext-key-id-".length); + if (widgetId.endsWith("-sidebar-action")) { + widgetId = addonId( + widgetId.substring(0, widgetId.length - "-sidebar-action".length) + ); + } + } + + return widgetId.replace(/_/g, "-"); +} + +function getOpenTabsAndWinsCounts() { + let loadedTabCount = 0; + let tabCount = 0; + let winCount = 0; + + for (let win of Services.wm.getEnumerator("navigator:browser")) { + winCount++; + tabCount += win.gBrowser.tabs.length; + for (const tab of win.gBrowser.tabs) { + if (tab.getAttribute("pending") !== "true") { + loadedTabCount += 1; + } + } + } + + return { loadedTabCount, tabCount, winCount }; +} + +function getPinnedTabsCount() { + let pinnedTabs = 0; + + for (let win of Services.wm.getEnumerator("navigator:browser")) { + pinnedTabs += [...win.ownerGlobal.gBrowser.tabs].filter(t => t.pinned) + .length; + } + + return pinnedTabs; +} + +let URICountListener = { + // A set containing the visited domains, see bug 1271310. + _domainSet: new Set(), + // A set containing the visited origins during the last 24 hours (similar to domains, but not quite the same) + _domain24hrSet: new Set(), + // A map to keep track of the URIs loaded from the restored tabs. + _restoredURIsMap: new WeakMap(), + // Ongoing expiration timeouts. + _timeouts: new Set(), + + isHttpURI(uri) { + // Only consider http(s) schemas. + return uri.schemeIs("http") || uri.schemeIs("https"); + }, + + addRestoredURI(browser, uri) { + if (!this.isHttpURI(uri)) { + return; + } + + this._restoredURIsMap.set(browser, uri.spec); + }, + + onLocationChange(browser, webProgress, request, uri, flags) { + if ( + !(flags & Ci.nsIWebProgressListener.LOCATION_CHANGE_SAME_DOCUMENT) && + webProgress.isTopLevel + ) { + // By default, assume we no longer need to track this tab. + lazy.SearchSERPTelemetry.stopTrackingBrowser(browser); + } + + // Don't count this URI if it's an error page. + if (flags & Ci.nsIWebProgressListener.LOCATION_CHANGE_ERROR_PAGE) { + return; + } + + // We only care about top level loads. + if (!webProgress.isTopLevel) { + return; + } + + // The SessionStore sets the URI of a tab first, firing onLocationChange the + // first time, then manages content loading using its scheduler. Once content + // loads, we will hit onLocationChange again. + // We can catch the first case by checking for null requests: be advised that + // this can also happen when navigating page fragments, so account for it. + if ( + !request && + !(flags & Ci.nsIWebProgressListener.LOCATION_CHANGE_SAME_DOCUMENT) + ) { + return; + } + + // Don't include URI and domain counts when in private mode. + let shouldCountURI = + !lazy.PrivateBrowsingUtils.isWindowPrivate(browser.ownerGlobal) || + Services.prefs.getBoolPref( + "browser.engagement.total_uri_count.pbm", + false + ); + + // Track URI loads, even if they're not http(s). + let uriSpec = null; + try { + uriSpec = uri.spec; + } catch (e) { + // If we have troubles parsing the spec, still count this as + // an unfiltered URI. + if (shouldCountURI) { + Services.telemetry.scalarAdd(UNFILTERED_URI_COUNT_SCALAR_NAME, 1); + } + return; + } + + // Don't count about:blank and similar pages, as they would artificially + // inflate the counts. + if (browser.ownerGlobal.gInitialPages.includes(uriSpec)) { + return; + } + + // If the URI we're loading is in the _restoredURIsMap, then it comes from a + // restored tab. If so, let's skip it and remove it from the map as we want to + // count page refreshes. + if (this._restoredURIsMap.get(browser) === uriSpec) { + this._restoredURIsMap.delete(browser); + return; + } + + // The URI wasn't from a restored tab. Count it among the unfiltered URIs. + // If this is an http(s) URI, this also gets counted by the "total_uri_count" + // probe. + if (shouldCountURI) { + Services.telemetry.scalarAdd(UNFILTERED_URI_COUNT_SCALAR_NAME, 1); + } + + if (!this.isHttpURI(uri)) { + return; + } + + if (!(flags & Ci.nsIWebProgressListener.LOCATION_CHANGE_SAME_DOCUMENT)) { + lazy.SearchSERPTelemetry.updateTrackingStatus( + browser, + uriSpec, + webProgress.loadType + ); + } + + // Update total URI count, including when in private mode. + Services.telemetry.scalarAdd( + TOTAL_URI_COUNT_NORMAL_AND_PRIVATE_MODE_SCALAR_NAME, + 1 + ); + Glean.browserEngagement.uriCount.add(1); + + if (!shouldCountURI) { + return; + } + + // Update the URI counts. + Services.telemetry.scalarAdd(TOTAL_URI_COUNT_SCALAR_NAME, 1); + + // Update tab count + BrowserUsageTelemetry._recordTabCounts(getOpenTabsAndWinsCounts()); + + // Unique domains should be aggregated by (eTLD + 1): x.test.com and y.test.com + // are counted once as test.com. + let baseDomain; + try { + // Even if only considering http(s) URIs, |getBaseDomain| could still throw + // due to the URI containing invalid characters or the domain actually being + // an ipv4 or ipv6 address. + baseDomain = Services.eTLD.getBaseDomain(uri); + } catch (e) { + return; + } + + // We only want to count the unique domains up to MAX_UNIQUE_VISITED_DOMAINS. + if (this._domainSet.size < MAX_UNIQUE_VISITED_DOMAINS) { + this._domainSet.add(baseDomain); + Services.telemetry.scalarSet( + UNIQUE_DOMAINS_COUNT_SCALAR_NAME, + this._domainSet.size + ); + } + + this._domain24hrSet.add(baseDomain); + if (lazy.gRecentVisitedOriginsExpiry) { + let timeoutId = lazy.setTimeout(() => { + this._domain24hrSet.delete(baseDomain); + this._timeouts.delete(timeoutId); + }, lazy.gRecentVisitedOriginsExpiry * 1000); + this._timeouts.add(timeoutId); + } + }, + + /** + * Reset the counts. This should be called when breaking a session in Telemetry. + */ + reset() { + this._domainSet.clear(); + }, + + /** + * Returns the number of unique domains visited in this session during the + * last 24 hours. + */ + get uniqueDomainsVisitedInPast24Hours() { + return this._domain24hrSet.size; + }, + + /** + * Resets the number of unique domains visited in this session. + */ + resetUniqueDomainsVisitedInPast24Hours() { + this._timeouts.forEach(timeoutId => lazy.clearTimeout(timeoutId)); + this._timeouts.clear(); + this._domain24hrSet.clear(); + }, + + QueryInterface: ChromeUtils.generateQI([ + "nsIWebProgressListener", + "nsISupportsWeakReference", + ]), +}; + +let BrowserUsageTelemetry = { + /** + * This is a policy object used to override behavior for testing. + */ + Policy: { + getTelemetryClientId: async () => lazy.ClientID.getClientID(), + getUpdateDirectory: () => Services.dirsvc.get("UpdRootD", Ci.nsIFile), + readProfileCountFile: async path => IOUtils.readUTF8(path), + writeProfileCountFile: async (path, data) => IOUtils.writeUTF8(path, data), + }, + + _inited: false, + + init() { + this._lastRecordTabCount = 0; + this._lastRecordLoadedTabCount = 0; + this._setupAfterRestore(); + this._inited = true; + + Services.prefs.addObserver("browser.tabs.inTitlebar", this); + + this._recordUITelemetry(); + + this._recordContentProcessCountInterval = lazy.setInterval( + () => this._recordContentProcessCount(), + CONTENT_PROCESS_COUNT_INTERVAL_MS + ); + }, + + /** + * Resets the masked add-on identifiers. Only for use in tests. + */ + _resetAddonIds() { + KNOWN_ADDONS.length = 0; + }, + + /** + * Handle subsession splits in the parent process. + */ + afterSubsessionSplit() { + // Scalars just got cleared due to a subsession split. We need to set the maximum + // concurrent tab and window counts so that they reflect the correct value for the + // new subsession. + const counts = getOpenTabsAndWinsCounts(); + Services.telemetry.scalarSetMaximum( + MAX_TAB_COUNT_SCALAR_NAME, + counts.tabCount + ); + Services.telemetry.scalarSetMaximum( + MAX_WINDOW_COUNT_SCALAR_NAME, + counts.winCount + ); + + // Reset the URI counter. + URICountListener.reset(); + }, + + QueryInterface: ChromeUtils.generateQI([ + "nsIObserver", + "nsISupportsWeakReference", + ]), + + uninit() { + if (!this._inited) { + return; + } + Services.obs.removeObserver(this, DOMWINDOW_OPENED_TOPIC); + Services.obs.removeObserver(this, TELEMETRY_SUBSESSIONSPLIT_TOPIC); + + lazy.clearInterval(this._recordContentProcessCountInterval); + }, + + observe(subject, topic, data) { + switch (topic) { + case DOMWINDOW_OPENED_TOPIC: + this._onWindowOpen(subject); + break; + case TELEMETRY_SUBSESSIONSPLIT_TOPIC: + this.afterSubsessionSplit(); + break; + case "nsPref:changed": + switch (data) { + case "browser.tabs.inTitlebar": + this._recordWidgetChange( + "titlebar", + Services.appinfo.drawInTitlebar ? "off" : "on", + "pref" + ); + break; + } + break; + } + }, + + handleEvent(event) { + switch (event.type) { + case "TabOpen": + this._onTabOpen(getOpenTabsAndWinsCounts()); + break; + case "TabPinned": + this._onTabPinned(); + break; + case "unload": + this._unregisterWindow(event.target); + break; + case TAB_RESTORING_TOPIC: + // We're restoring a new tab from a previous or crashed session. + // We don't want to track the URIs from these tabs, so let + // |URICountListener| know about them. + let browser = event.target.linkedBrowser; + URICountListener.addRestoredURI(browser, browser.currentURI); + + const { loadedTabCount } = getOpenTabsAndWinsCounts(); + this._recordTabCounts({ loadedTabCount }); + break; + } + }, + + /** + * This gets called shortly after the SessionStore has finished restoring + * windows and tabs. It counts the open tabs and adds listeners to all the + * windows. + */ + _setupAfterRestore() { + // Make sure to catch new chrome windows and subsession splits. + Services.obs.addObserver(this, DOMWINDOW_OPENED_TOPIC, true); + Services.obs.addObserver(this, TELEMETRY_SUBSESSIONSPLIT_TOPIC, true); + + // Attach the tabopen handlers to the existing Windows. + for (let win of Services.wm.getEnumerator("navigator:browser")) { + this._registerWindow(win); + } + + // Get the initial tab and windows max counts. + const counts = getOpenTabsAndWinsCounts(); + Services.telemetry.scalarSetMaximum( + MAX_TAB_COUNT_SCALAR_NAME, + counts.tabCount + ); + Services.telemetry.scalarSetMaximum( + MAX_WINDOW_COUNT_SCALAR_NAME, + counts.winCount + ); + }, + + _buildWidgetPositions() { + let widgetMap = new Map(); + + const toolbarState = nodeId => { + let value; + if (nodeId == "PersonalToolbar") { + value = Services.prefs.getCharPref( + "browser.toolbars.bookmarks.visibility", + "newtab" + ); + if (value != "newtab") { + return value == "never" ? "off" : "on"; + } + return value; + } + value = Services.xulStore.getValue( + AppConstants.BROWSER_CHROME_URL, + nodeId, + "collapsed" + ); + + if (value) { + return value == "true" ? "off" : "on"; + } + return "off"; + }; + + widgetMap.set( + BROWSER_UI_CONTAINER_IDS.PersonalToolbar, + toolbarState("PersonalToolbar") + ); + + let menuBarHidden = + Services.xulStore.getValue( + AppConstants.BROWSER_CHROME_URL, + "toolbar-menubar", + "autohide" + ) != "false"; + + widgetMap.set("menu-toolbar", menuBarHidden ? "off" : "on"); + + // Drawing in the titlebar means not showing the titlebar, hence the negation. + widgetMap.set("titlebar", Services.appinfo.drawInTitlebar ? "off" : "on"); + + for (let area of lazy.CustomizableUI.areas) { + if (!(area in BROWSER_UI_CONTAINER_IDS)) { + continue; + } + + let position = BROWSER_UI_CONTAINER_IDS[area]; + if (area == "nav-bar") { + position = `${BROWSER_UI_CONTAINER_IDS[area]}-start`; + } + + let widgets = lazy.CustomizableUI.getWidgetsInArea(area); + + for (let widget of widgets) { + if (!widget) { + continue; + } + + if (widget.id.startsWith("customizableui-special-")) { + continue; + } + + if (area == "nav-bar" && widget.id == "urlbar-container") { + position = `${BROWSER_UI_CONTAINER_IDS[area]}-end`; + continue; + } + + widgetMap.set(widget.id, position); + } + } + + let actions = lazy.PageActions.actions; + for (let action of actions) { + if (action.pinnedToUrlbar) { + widgetMap.set(action.id, "pageaction-urlbar"); + } + } + + return widgetMap; + }, + + _getWidgetID(node) { + // We want to find a sensible ID for this element. + if (!node) { + return null; + } + + // See if this is a customizable widget. + if (node.ownerDocument.URL == AppConstants.BROWSER_CHROME_URL) { + // First find if it is inside one of the customizable areas. + for (let area of lazy.CustomizableUI.areas) { + if (node.closest(`#${CSS.escape(area)}`)) { + for (let widget of lazy.CustomizableUI.getWidgetIdsInArea(area)) { + if ( + // We care about the buttons on the tabs themselves. + widget == "tabbrowser-tabs" || + // We care about the page action and other buttons in here. + widget == "urlbar-container" || + // We care about the actual menu items. + widget == "menubar-items" || + // We care about individual bookmarks here. + widget == "personal-bookmarks" + ) { + continue; + } + + if (node.closest(`#${CSS.escape(widget)}`)) { + return widget; + } + } + break; + } + } + } + + if (node.id) { + return node.id; + } + + // A couple of special cases in the tabs. + for (let cls of ["bookmark-item", "tab-icon-sound", "tab-close-button"]) { + if (node.classList.contains(cls)) { + return cls; + } + } + + // One of these will at least let us know what the widget is for. + let possibleAttributes = [ + "preference", + "command", + "observes", + "data-l10n-id", + ]; + + // The key attribute on key elements is the actual key to listen for. + if (node.localName != "key") { + possibleAttributes.unshift("key"); + } + + for (let idAttribute of possibleAttributes) { + if (node.hasAttribute(idAttribute)) { + return node.getAttribute(idAttribute); + } + } + + return this._getWidgetID(node.parentElement); + }, + + _getBrowserWidgetContainer(node) { + // Find the container holding this element. + for (let containerId of Object.keys(BROWSER_UI_CONTAINER_IDS)) { + let container = node.ownerDocument.getElementById(containerId); + if (container && container.contains(node)) { + return BROWSER_UI_CONTAINER_IDS[containerId]; + } + } + // Treat toolbar context menu items that relate to tabs as the tab menu: + if ( + node.closest("#toolbar-context-menu") && + node.getAttribute("contexttype") == "tabbar" + ) { + return BROWSER_UI_CONTAINER_IDS.tabContextMenu; + } + return null; + }, + + _getWidgetContainer(node) { + if (node.localName == "key") { + return "keyboard"; + } + + const { URL } = node.ownerDocument; + if (URL == AppConstants.BROWSER_CHROME_URL) { + return this._getBrowserWidgetContainer(node); + } + if (URL.startsWith("about:preferences")) { + // Find the element's category. + let container = node.closest("[data-category]"); + if (!container) { + return null; + } + + let pane = container.getAttribute("data-category"); + + if (!PREFERENCES_PANES.includes(pane)) { + pane = "paneUnknown"; + } + + return `preferences_${pane}`; + } + + return null; + }, + + lastClickTarget: null, + + ignoreEvent(event) { + IGNORABLE_EVENTS.set(event, true); + }, + + _recordCommand(event) { + if (IGNORABLE_EVENTS.get(event)) { + return; + } + + let types = [event.type]; + let sourceEvent = event; + while (sourceEvent.sourceEvent) { + sourceEvent = sourceEvent.sourceEvent; + types.push(sourceEvent.type); + } + + let lastTarget = this.lastClickTarget?.get(); + if ( + lastTarget && + sourceEvent.type == "command" && + sourceEvent.target.contains(lastTarget) + ) { + // Ignore a command event triggered by a click. + this.lastClickTarget = null; + return; + } + + this.lastClickTarget = null; + + if (sourceEvent.type == "click") { + // Only care about main button clicks. + if (sourceEvent.button != 0) { + return; + } + + // This click may trigger a command event so retain the target to be able + // to dedupe that event. + this.lastClickTarget = Cu.getWeakReference(sourceEvent.target); + } + + // We should never see events from web content as they are fired in a + // content process, but let's be safe. + let url = sourceEvent.target.ownerDocument.documentURIObject; + if (!url.schemeIs("chrome") && !url.schemeIs("about")) { + return; + } + + // This is what events targetted at content will actually look like. + if (sourceEvent.target.localName == "browser") { + return; + } + + // Find the actual element we're interested in. + let node = sourceEvent.target; + const isAboutPreferences = node.ownerDocument.URL.startsWith( + "about:preferences" + ); + while ( + !UI_TARGET_ELEMENTS.includes(node.localName) && + !node.classList?.contains("wants-telemetry") && + // We are interested in links on about:preferences as well. + !( + isAboutPreferences && + (node.getAttribute("is") === "text-link" || node.localName === "a") + ) + ) { + node = node.parentNode; + if (!node?.parentNode) { + // A click on a space or label or top-level document or something we're + // not interested in. + return; + } + } + + let item = this._getWidgetID(node); + let source = this._getWidgetContainer(node); + + if (item && source) { + let scalar = `browser.ui.interaction.${source.replace(/-/g, "_")}`; + Services.telemetry.keyedScalarAdd(scalar, telemetryId(item), 1); + if (SET_USAGECOUNT_PREF_BUTTONS.includes(item)) { + let pref = `browser.engagement.${item}.used-count`; + Services.prefs.setIntPref(pref, Services.prefs.getIntPref(pref, 0) + 1); + } + if (SET_USAGE_PREF_BUTTONS.includes(item)) { + Services.prefs.setBoolPref(`browser.engagement.${item}.has-used`, true); + } + } + }, + + /** + * Listens for UI interactions in the window. + */ + _addUsageListeners(win) { + // Listen for command events from the UI. + win.addEventListener("command", event => this._recordCommand(event), true); + win.addEventListener("click", event => this._recordCommand(event), true); + }, + + /** + * A public version of the private method to take care of the `nav-bar-start`, + * `nav-bar-end` thing that callers shouldn't have to care about. It also + * accepts the DOM ids for the areas rather than the cleaner ones we report + * to telemetry. + */ + recordWidgetChange(widgetId, newPos, reason) { + try { + if (newPos) { + newPos = BROWSER_UI_CONTAINER_IDS[newPos]; + } + + if (newPos == "nav-bar") { + let { position } = lazy.CustomizableUI.getPlacementOfWidget(widgetId); + let { + position: urlPosition, + } = lazy.CustomizableUI.getPlacementOfWidget("urlbar-container"); + newPos = newPos + (urlPosition > position ? "-start" : "-end"); + } + + this._recordWidgetChange(widgetId, newPos, reason); + } catch (e) { + console.error(e); + } + }, + + recordToolbarVisibility(toolbarId, newState, reason) { + if (typeof newState != "string") { + newState = newState ? "on" : "off"; + } + this._recordWidgetChange( + BROWSER_UI_CONTAINER_IDS[toolbarId], + newState, + reason + ); + }, + + _recordWidgetChange(widgetId, newPos, reason) { + // In some cases (like when add-ons are detected during startup) this gets + // called before we've reported the initial positions. Ignore such cases. + if (!this.widgetMap) { + return; + } + + if (widgetId == "urlbar-container") { + // We don't report the position of the url bar, it is after nav-bar-start + // and before nav-bar-end. But moving it means the widgets around it have + // effectively moved so update those. + let position = "nav-bar-start"; + let widgets = lazy.CustomizableUI.getWidgetsInArea("nav-bar"); + + for (let widget of widgets) { + if (!widget) { + continue; + } + + if (widget.id.startsWith("customizableui-special-")) { + continue; + } + + if (widget.id == "urlbar-container") { + position = "nav-bar-end"; + continue; + } + + // This will do nothing if the position hasn't changed. + this._recordWidgetChange(widget.id, position, reason); + } + + return; + } + + let oldPos = this.widgetMap.get(widgetId); + if (oldPos == newPos) { + return; + } + + let action = "move"; + + if (!oldPos) { + action = "add"; + } else if (!newPos) { + action = "remove"; + } + + let key = `${telemetryId(widgetId, false)}_${action}_${oldPos ?? + "na"}_${newPos ?? "na"}_${reason}`; + Services.telemetry.keyedScalarAdd("browser.ui.customized_widgets", key, 1); + + if (newPos) { + this.widgetMap.set(widgetId, newPos); + } else { + this.widgetMap.delete(widgetId); + } + }, + + _recordUITelemetry() { + this.widgetMap = this._buildWidgetPositions(); + + for (let [widgetId, position] of this.widgetMap.entries()) { + let key = `${telemetryId(widgetId, false)}_pinned_${position}`; + Services.telemetry.keyedScalarSet( + "browser.ui.toolbar_widgets", + key, + true + ); + } + }, + + /** + * Adds listeners to a single chrome window. + */ + _registerWindow(win) { + this._addUsageListeners(win); + + win.addEventListener("unload", this); + win.addEventListener("TabOpen", this, true); + win.addEventListener("TabPinned", this, true); + + win.gBrowser.tabContainer.addEventListener(TAB_RESTORING_TOPIC, this); + win.gBrowser.addTabsProgressListener(URICountListener); + }, + + /** + * Removes listeners from a single chrome window. + */ + _unregisterWindow(win) { + win.removeEventListener("unload", this); + win.removeEventListener("TabOpen", this, true); + win.removeEventListener("TabPinned", this, true); + + win.defaultView.gBrowser.tabContainer.removeEventListener( + TAB_RESTORING_TOPIC, + this + ); + win.defaultView.gBrowser.removeTabsProgressListener(URICountListener); + }, + + /** + * Updates the tab counts. + * @param {Object} [counts] The counts returned by `getOpenTabsAndWindowCounts`. + */ + _onTabOpen({ tabCount, loadedTabCount }) { + // Update the "tab opened" count and its maximum. + Services.telemetry.scalarAdd(TAB_OPEN_EVENT_COUNT_SCALAR_NAME, 1); + Services.telemetry.scalarSetMaximum(MAX_TAB_COUNT_SCALAR_NAME, tabCount); + + this._recordTabCounts({ tabCount, loadedTabCount }); + }, + + _onTabPinned(target) { + const pinnedTabs = getPinnedTabsCount(); + + // Update the "tab pinned" count and its maximum. + Services.telemetry.scalarAdd(TAB_PINNED_EVENT_COUNT_SCALAR_NAME, 1); + Services.telemetry.scalarSetMaximum( + MAX_TAB_PINNED_COUNT_SCALAR_NAME, + pinnedTabs + ); + }, + + /** + * Tracks the window count and registers the listeners for the tab count. + * @param{Object} win The window object. + */ + _onWindowOpen(win) { + // Make sure to have a |nsIDOMWindow|. + if (!(win instanceof Ci.nsIDOMWindow)) { + return; + } + + let onLoad = () => { + win.removeEventListener("load", onLoad); + + // Ignore non browser windows. + if ( + win.document.documentElement.getAttribute("windowtype") != + "navigator:browser" + ) { + return; + } + + this._registerWindow(win); + // Track the window open event and check the maximum. + const counts = getOpenTabsAndWinsCounts(); + Services.telemetry.scalarAdd(WINDOW_OPEN_EVENT_COUNT_SCALAR_NAME, 1); + Services.telemetry.scalarSetMaximum( + MAX_WINDOW_COUNT_SCALAR_NAME, + counts.winCount + ); + + // We won't receive the "TabOpen" event for the first tab within a new window. + // Account for that. + this._onTabOpen(counts); + }; + win.addEventListener("load", onLoad); + }, + + /** + * Record telemetry about the given tab counts. + * + * Telemetry for each count will only be recorded if the value isn't + * `undefined`. + * + * @param {object} [counts] The tab counts to register with telemetry. + * @param {number} [counts.tabCount] The number of tabs in all browsers. + * @param {number} [counts.loadedTabCount] The number of loaded (i.e., not + * pending) tabs in all browsers. + */ + _recordTabCounts({ tabCount, loadedTabCount }) { + let currentTime = Date.now(); + if ( + tabCount !== undefined && + currentTime > this._lastRecordTabCount + MINIMUM_TAB_COUNT_INTERVAL_MS + ) { + Services.telemetry.getHistogramById("TAB_COUNT").add(tabCount); + this._lastRecordTabCount = currentTime; + } + + if ( + loadedTabCount !== undefined && + currentTime > + this._lastRecordLoadedTabCount + MINIMUM_TAB_COUNT_INTERVAL_MS + ) { + Services.telemetry + .getHistogramById("LOADED_TAB_COUNT") + .add(loadedTabCount); + this._lastRecordLoadedTabCount = currentTime; + } + }, + + _checkProfileCountFileSchema(fileData) { + // Verifies that the schema of the file is the expected schema + if (typeof fileData.version != "string") { + throw new Error("Schema Mismatch Error: Bad type for 'version' field"); + } + if (!Array.isArray(fileData.profileTelemetryIds)) { + throw new Error( + "Schema Mismatch Error: Bad type for 'profileTelemetryIds' field" + ); + } + for (let profileTelemetryId of fileData.profileTelemetryIds) { + if (typeof profileTelemetryId != "string") { + throw new Error( + "Schema Mismatch Error: Bad type for an element of 'profileTelemetryIds'" + ); + } + } + }, + + // Reports the number of Firefox profiles on this machine to telemetry. + async reportProfileCount() { + if (AppConstants.platform != "win") { + // This is currently a windows-only feature. + return; + } + + // To report only as much data as we need, we will bucket our values. + // Rather than the raw value, we will report the greatest value in the list + // below that is no larger than the raw value. + const buckets = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100, 1000, 10000]; + + // We need both the C:\ProgramData\Mozilla directory and the install + // directory hash to create the profile count file path. We can easily + // reassemble this from the update directory, which looks like: + // C:\ProgramData\Mozilla\updates\hash + // Retrieving the directory this way also ensures that the "Mozilla" + // directory is created with the correct permissions. + // The ProgramData directory, by default, grants write permissions only to + // file creators. The directory service calls GetCommonUpdateDirectory, + // which makes sure the the directory is created with user-writable + // permissions. + const updateDirectory = BrowserUsageTelemetry.Policy.getUpdateDirectory(); + const hash = updateDirectory.leafName; + const profileCountFilename = "profile_count_" + hash + ".json"; + let profileCountFile = updateDirectory.parent.parent; + profileCountFile.append(profileCountFilename); + + let readError = false; + let fileData; + try { + let json = await BrowserUsageTelemetry.Policy.readProfileCountFile( + profileCountFile.path + ); + fileData = JSON.parse(json); + BrowserUsageTelemetry._checkProfileCountFileSchema(fileData); + } catch (ex) { + // Note that since this also catches the "no such file" error, this is + // always the template that we use when writing to the file for the first + // time. + fileData = { version: "1", profileTelemetryIds: [] }; + if (!(ex.name == "NotFoundError")) { + console.error(ex); + // Don't just return here on a read error. We need to send the error + // value to telemetry and we want to attempt to fix the file. + // However, we will still report an error for this ping, even if we + // fix the file. This is to prevent always sending a profile count of 1 + // if, for some reason, we always get a read error but never a write + // error. + readError = true; + } + } + + let writeError = false; + let currentTelemetryId = await BrowserUsageTelemetry.Policy.getTelemetryClientId(); + // Don't add our telemetry ID to the file if we've already reached the + // largest bucket. This prevents the file size from growing forever. + if ( + !fileData.profileTelemetryIds.includes(currentTelemetryId) && + fileData.profileTelemetryIds.length < Math.max(...buckets) + ) { + fileData.profileTelemetryIds.push(currentTelemetryId); + try { + await BrowserUsageTelemetry.Policy.writeProfileCountFile( + profileCountFile.path, + JSON.stringify(fileData) + ); + } catch (ex) { + console.error(ex); + writeError = true; + } + } + + // Determine the bucketed value to report + let rawProfileCount = fileData.profileTelemetryIds.length; + let valueToReport = 0; + for (let bucket of buckets) { + if (bucket <= rawProfileCount && bucket > valueToReport) { + valueToReport = bucket; + } + } + + if (readError || writeError) { + // We convey errors via a profile count of 0. + valueToReport = 0; + } + + Services.telemetry.scalarSet( + "browser.engagement.profile_count", + valueToReport + ); + }, + + /** + * Check if this is the first run of this profile since installation, + * if so then send installation telemetry. + * + * @param {nsIFile} [dataPathOverride] Optional, full data file path, for tests. + * @param {Array<string>} [msixPackagePrefixes] Optional, list of prefixes to + consider "existing" installs when looking at installed MSIX packages. + Defaults to prefixes for builds produced in Firefox automation. + * @return {Promise} + * @resolves When the event has been recorded, or if the data file was not found. + * @rejects JavaScript exception on any failure. + */ + async reportInstallationTelemetry( + dataPathOverride, + msixPackagePrefixes = ["Mozilla.Firefox", "Mozilla.MozillaFirefox"] + ) { + if (AppConstants.platform != "win") { + // This is a windows-only feature. + return; + } + + const TIMESTAMP_PREF = "app.installation.timestamp"; + const lastInstallTime = Services.prefs.getStringPref(TIMESTAMP_PREF, null); + const wpm = Cc["@mozilla.org/windows-package-manager;1"].createInstance( + Ci.nsIWindowsPackageManager + ); + let installer_type = ""; + let pfn; + try { + pfn = Services.sysinfo.getProperty("winPackageFamilyName"); + } catch (e) {} + + function getInstallData() { + // We only care about where _any_ other install existed - no + // need to count more than 1. + const installPaths = lazy.WindowsInstallsInfo.getInstallPaths( + 1, + new Set([Services.dirsvc.get("GreBinD", Ci.nsIFile).path]) + ); + const msixInstalls = new Set(); + // We're just going to eat all errors here -- we don't want the event + // to go unsent if we were unable to look for MSIX installs. + try { + wpm + .findUserInstalledPackages(msixPackagePrefixes) + .forEach(i => msixInstalls.add(i)); + if (pfn) { + msixInstalls.delete(pfn); + } + } catch (ex) {} + return { + installPaths, + msixInstalls, + }; + } + + let extra = {}; + + if (pfn) { + if (lastInstallTime != null) { + // We've already seen this install + return; + } + + // First time seeing this install, record the timestamp. + Services.prefs.setStringPref(TIMESTAMP_PREF, wpm.getInstalledDate()); + let install_data = getInstallData(); + + installer_type = "msix"; + + // Build the extra event data + extra.version = AppConstants.MOZ_APP_VERSION; + extra.build_id = AppConstants.MOZ_BUILDID; + // The next few keys are static for the reasons described + // No way to detect whether or not we were installed by an admin + extra.admin_user = "false"; + // Always false at the moment, because we create a new profile + // on first launch + extra.profdir_existed = "false"; + // Obviously false for MSIX installs + extra.from_msi = "false"; + // We have no way of knowing whether we were installed via the GUI, + // through the command line, or some Enterprise management tool. + extra.silent = "false"; + // There's no way to change the install path for an MSIX package + extra.default_path = "true"; + extra.install_existed = install_data.msixInstalls.has(pfn).toString(); + install_data.msixInstalls.delete(pfn); + extra.other_inst = (!!install_data.installPaths.size).toString(); + extra.other_msix_inst = (!!install_data.msixInstalls.size).toString(); + } else { + let dataPath = dataPathOverride; + if (!dataPath) { + dataPath = Services.dirsvc.get("GreD", Ci.nsIFile); + dataPath.append("installation_telemetry.json"); + } + + let dataBytes; + try { + dataBytes = await IOUtils.read(dataPath.path); + } catch (ex) { + if (ex.name == "NotFoundError") { + // Many systems will not have the data file, return silently if not found as + // there is nothing to record. + return; + } + throw ex; + } + const dataString = new TextDecoder("utf-16").decode(dataBytes); + const data = JSON.parse(dataString); + + if (lastInstallTime && data.install_timestamp == lastInstallTime) { + // We've already seen this install + return; + } + + // First time seeing this install, record the timestamp. + Services.prefs.setStringPref(TIMESTAMP_PREF, data.install_timestamp); + let install_data = getInstallData(); + + installer_type = data.installer_type; + + // Installation timestamp is not intended to be sent with telemetry, + // remove it to emphasize this point. + delete data.install_timestamp; + + // Build the extra event data + extra.version = data.version; + extra.build_id = data.build_id; + extra.admin_user = data.admin_user.toString(); + extra.install_existed = data.install_existed.toString(); + extra.profdir_existed = data.profdir_existed.toString(); + extra.other_inst = (!!install_data.installPaths.size).toString(); + extra.other_msix_inst = (!!install_data.msixInstalls.size).toString(); + + if (data.installer_type == "full") { + extra.silent = data.silent.toString(); + extra.from_msi = data.from_msi.toString(); + extra.default_path = data.default_path.toString(); + } + } + // Record the event + Services.telemetry.setEventRecordingEnabled("installation", true); + Services.telemetry.recordEvent( + "installation", + "first_seen", + installer_type, + null, + extra + ); + }, + + /** + * Record the number of content processes. + */ + _recordContentProcessCount() { + // All DOM processes includes the parent. + const count = ChromeUtils.getAllDOMProcesses().length - 1; + + Services.telemetry.getHistogramById(CONTENT_PROCESS_COUNT).add(count); + Services.telemetry + .getHistogramById(CONTENT_PROCESS_PRECISE_COUNT) + .add(count); + }, +}; + +// Used by nsIBrowserUsage +function getUniqueDomainsVisitedInPast24Hours() { + return URICountListener.uniqueDomainsVisitedInPast24Hours; +} |