diff options
Diffstat (limited to 'browser/components/newtab/lib/FaviconFeed.jsm')
| -rw-r--r-- | browser/components/newtab/lib/FaviconFeed.jsm | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/browser/components/newtab/lib/FaviconFeed.jsm b/browser/components/newtab/lib/FaviconFeed.jsm new file mode 100644 index 0000000000..0311582919 --- /dev/null +++ b/browser/components/newtab/lib/FaviconFeed.jsm @@ -0,0 +1,197 @@ +/* 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"; + +const { actionTypes: at } = ChromeUtils.importESModule( + "resource://activity-stream/common/Actions.sys.mjs" +); +const { getDomain } = ChromeUtils.importESModule( + "resource://activity-stream/lib/TippyTopProvider.sys.mjs" +); +const { RemoteSettings } = ChromeUtils.importESModule( + "resource://services-settings/remote-settings.sys.mjs" +); + +const lazy = {}; + +ChromeUtils.defineESModuleGetters(lazy, { + NewTabUtils: "resource://gre/modules/NewTabUtils.sys.mjs", + PlacesUtils: "resource://gre/modules/PlacesUtils.sys.mjs", +}); + +const MIN_FAVICON_SIZE = 96; + +/** + * Get favicon info (uri and size) for a uri from Places. + * + * @param uri {nsIURI} Page to check for favicon data + * @returns A promise of an object (possibly null) containing the data + */ +function getFaviconInfo(uri) { + return new Promise(resolve => + lazy.PlacesUtils.favicons.getFaviconDataForPage( + uri, + // Package up the icon data in an object if we have it; otherwise null + (iconUri, faviconLength, favicon, mimeType, faviconSize) => + resolve(iconUri ? { iconUri, faviconSize } : null), + lazy.NewTabUtils.activityStreamProvider.THUMB_FAVICON_SIZE + ) + ); +} + +/** + * Fetches visit paths for a given URL from its most recent visit in Places. + * + * Note that this includes the URL itself as well as all the following + * permenent&temporary redirected URLs if any. + * + * @param {String} a URL string + * + * @returns {Array} Returns an array containing objects as + * {int} visit_id: ID of the visit in moz_historyvisits. + * {String} url: URL of the redirected URL. + */ +async function fetchVisitPaths(url) { + const query = ` + WITH RECURSIVE path(visit_id) + AS ( + SELECT v.id + FROM moz_places h + JOIN moz_historyvisits v + ON v.place_id = h.id + WHERE h.url_hash = hash(:url) AND h.url = :url + AND v.visit_date = h.last_visit_date + + UNION + + SELECT id + FROM moz_historyvisits + JOIN path + ON visit_id = from_visit + WHERE visit_type IN + (${lazy.PlacesUtils.history.TRANSITIONS.REDIRECT_PERMANENT}, + ${lazy.PlacesUtils.history.TRANSITIONS.REDIRECT_TEMPORARY}) + ) + SELECT visit_id, ( + SELECT ( + SELECT url + FROM moz_places + WHERE id = place_id) + FROM moz_historyvisits + WHERE id = visit_id) AS url + FROM path + `; + + const visits = + await lazy.NewTabUtils.activityStreamProvider.executePlacesQuery(query, { + columns: ["visit_id", "url"], + params: { url }, + }); + return visits; +} + +/** + * Fetch favicon for a url by following its redirects in Places. + * + * This can improve the rich icon coverage for Top Sites since Places only + * associates the favicon to the final url if the original one gets redirected. + * Note this is not an urgent request, hence it is dispatched to the main + * thread idle handler to avoid any possible performance impact. + */ +async function fetchIconFromRedirects(url) { + const visitPaths = await fetchVisitPaths(url); + if (visitPaths.length > 1) { + const lastVisit = visitPaths.pop(); + const redirectedUri = Services.io.newURI(lastVisit.url); + const iconInfo = await getFaviconInfo(redirectedUri); + if (iconInfo && iconInfo.faviconSize >= MIN_FAVICON_SIZE) { + lazy.PlacesUtils.favicons.setAndFetchFaviconForPage( + Services.io.newURI(url), + iconInfo.iconUri, + false, + lazy.PlacesUtils.favicons.FAVICON_LOAD_NON_PRIVATE, + null, + Services.scriptSecurityManager.getSystemPrincipal() + ); + } + } +} + +class FaviconFeed { + constructor() { + this._queryForRedirects = new Set(); + } + + /** + * fetchIcon attempts to fetch a rich icon for the given url from two sources. + * First, it looks up the tippy top feed, if it's still missing, then it queries + * the places for rich icon with its most recent visit in order to deal with + * the redirected visit. See Bug 1421428 for more details. + */ + async fetchIcon(url) { + // Avoid initializing and fetching icons if prefs are turned off + if (!this.shouldFetchIcons) { + return; + } + + const site = await this.getSite(getDomain(url)); + if (!site) { + if (!this._queryForRedirects.has(url)) { + this._queryForRedirects.add(url); + Services.tm.idleDispatchToMainThread(() => fetchIconFromRedirects(url)); + } + return; + } + + let iconUri = Services.io.newURI(site.image_url); + // The #tippytop is to be able to identify them for telemetry. + iconUri = iconUri.mutate().setRef("tippytop").finalize(); + lazy.PlacesUtils.favicons.setAndFetchFaviconForPage( + Services.io.newURI(url), + iconUri, + false, + lazy.PlacesUtils.favicons.FAVICON_LOAD_NON_PRIVATE, + null, + Services.scriptSecurityManager.getSystemPrincipal() + ); + } + + /** + * Get the site tippy top data from Remote Settings. + */ + async getSite(domain) { + const sites = await this.tippyTop.get({ + filters: { domain }, + syncIfEmpty: false, + }); + return sites.length ? sites[0] : null; + } + + /** + * Get the tippy top collection from Remote Settings. + */ + get tippyTop() { + if (!this._tippyTop) { + this._tippyTop = RemoteSettings("tippytop"); + } + return this._tippyTop; + } + + /** + * Determine if we should be fetching and saving icons. + */ + get shouldFetchIcons() { + return Services.prefs.getBoolPref("browser.chrome.site_icons"); + } + + onAction(action) { + switch (action.type) { + case at.RICH_ICON_MISSING: + this.fetchIcon(action.data.url); + break; + } + } +} + +const EXPORTED_SYMBOLS = ["FaviconFeed", "fetchIconFromRedirects"]; |