commit 1a06e355caf9db17b0a2105e8cac304d08cd7ac7 Author: Alex Catarineu acat@torproject.org Date: Wed Oct 16 23:01:12 2019 +0200

Bug 31740: Remove some unnecessary RemoteSettings instances

More concretely, SearchService.jsm 'hijack-blocklists' and url-classifier-skip-urls.

Avoid creating instance for 'anti-tracking-url-decoration'.

If prefs are disabling their usage, avoid creating instances for 'cert-revocations' and 'intermediates'.

Do not ship JSON dumps for collections we do not expect to need. For the ones in the 'main' bucket, this prevents them from being synced unnecessarily (the code in remote-settings does so for collections in the main bucket for which a dump or local data exists). For the collections in the other buckets, we just save some size by not shipping their dumps.

We also clear the collections database on the v2 -> v3 migration. --- browser/app/profile/000-tor-browser.js | 3 +++ browser/components/search/SearchSERPTelemetry.jsm | 6 ------ .../url-classifier/UrlClassifierFeatureBase.cpp | 2 +- netwerk/url-classifier/components.conf | 6 ------ security/manager/ssl/RemoteSecuritySettings.jsm | 23 ++++++++++++++++++++++ services/settings/IDBHelpers.jsm | 4 ++++ services/settings/dumps/blocklists/moz.build | 14 +++++-------- services/settings/dumps/main/moz.build | 7 ------- services/settings/dumps/security-state/moz.build | 1 - .../components/antitracking/antitracking.manifest | 2 +- toolkit/components/antitracking/components.conf | 7 ------- toolkit/components/search/SearchService.jsm | 2 -- 12 files changed, 37 insertions(+), 40 deletions(-)

diff --git a/browser/app/profile/000-tor-browser.js b/browser/app/profile/000-tor-browser.js index d54f3aae2557..0200e68b5ce1 100644 --- a/browser/app/profile/000-tor-browser.js +++ b/browser/app/profile/000-tor-browser.js @@ -149,6 +149,9 @@ pref("extensions.fxmonitor.enabled", false); pref("signon.management.page.mobileAndroidURL", ""); pref("signon.management.page.mobileAppleURL", "");

+// Disable remote "password recipes" +pref("signon.recipes.remoteRecipesEnabled", false); + // Disable ServiceWorkers and push notifications by default pref("dom.serviceWorkers.enabled", false); pref("dom.push.enabled", false); diff --git a/browser/components/search/SearchSERPTelemetry.jsm b/browser/components/search/SearchSERPTelemetry.jsm index 3e9d92548213..5c499e91713a 100644 --- a/browser/components/search/SearchSERPTelemetry.jsm +++ b/browser/components/search/SearchSERPTelemetry.jsm @@ -96,13 +96,7 @@ class TelemetryHandler { return; }

- this._telemetrySettings = RemoteSettings(TELEMETRY_SETTINGS_KEY); let rawProviderInfo = []; - try { - rawProviderInfo = await this._telemetrySettings.get(); - } catch (ex) { - logConsole.error("Could not get settings:", ex); - }

// Send the provider info to the child handler. this._contentHandler.init(rawProviderInfo); diff --git a/netwerk/url-classifier/UrlClassifierFeatureBase.cpp b/netwerk/url-classifier/UrlClassifierFeatureBase.cpp index 1bbc7a652486..c3ab7c6cefc5 100644 --- a/netwerk/url-classifier/UrlClassifierFeatureBase.cpp +++ b/netwerk/url-classifier/UrlClassifierFeatureBase.cpp @@ -78,7 +78,7 @@ void UrlClassifierFeatureBase::InitializePreferences() {

nsCOMPtr<nsIUrlClassifierExceptionListService> exceptionListService = do_GetService("@mozilla.org/url-classifier/exception-list-service;1"); - if (NS_WARN_IF(!exceptionListService)) { + if (!exceptionListService) { return; }

diff --git a/netwerk/url-classifier/components.conf b/netwerk/url-classifier/components.conf index 03a02f0ebeab..b2e667247317 100644 --- a/netwerk/url-classifier/components.conf +++ b/netwerk/url-classifier/components.conf @@ -13,10 +13,4 @@ Classes = [ 'constructor': 'mozilla::net::ChannelClassifierService::GetSingleton', 'headers': ['mozilla/net/ChannelClassifierService.h'], }, - { - 'cid': '{b9f4fd03-9d87-4bfd-9958-85a821750ddc}', - 'contract_ids': ['@mozilla.org/url-classifier/exception-list-service;1'], - 'jsm': 'resource://gre/modules/UrlClassifierExceptionListService.jsm', - 'constructor': 'UrlClassifierExceptionListService', - }, ] diff --git a/security/manager/ssl/RemoteSecuritySettings.jsm b/security/manager/ssl/RemoteSecuritySettings.jsm index 630cfc18f498..d9a4f27a263f 100644 --- a/security/manager/ssl/RemoteSecuritySettings.jsm +++ b/security/manager/ssl/RemoteSecuritySettings.jsm @@ -274,6 +274,16 @@ var RemoteSecuritySettings = {

class IntermediatePreloads { constructor() { + this.maybeInit(); + } + + maybeInit() { + if ( + this.client || + !Services.prefs.getBoolPref(INTERMEDIATES_ENABLED_PREF, true) + ) { + return; + } this.client = RemoteSettings( Services.prefs.getCharPref(INTERMEDIATES_COLLECTION_PREF), { @@ -303,6 +313,7 @@ class IntermediatePreloads { ); return; } + this.maybeInit();

// Download attachments that are awaiting download, up to a max. const maxDownloadsPerRun = Services.prefs.getIntPref( @@ -544,6 +555,16 @@ function compareFilters(filterA, filterB) {

class CRLiteFilters { constructor() { + this.maybeInit(); + } + + maybeInit() { + if ( + this.client || + !Services.prefs.getBoolPref(CRLITE_FILTERS_ENABLED_PREF, true) + ) { + return; + } this.client = RemoteSettings( Services.prefs.getCharPref(CRLITE_FILTERS_COLLECTION_PREF), { @@ -571,6 +592,8 @@ class CRLiteFilters { return; }

+ this.maybeInit(); + let hasPriorFilter = await hasPriorData( Ci.nsICertStorage.DATA_TYPE_CRLITE_FILTER_FULL ); diff --git a/services/settings/IDBHelpers.jsm b/services/settings/IDBHelpers.jsm index 5dc59c3687ef..010a5ea82987 100644 --- a/services/settings/IDBHelpers.jsm +++ b/services/settings/IDBHelpers.jsm @@ -188,6 +188,10 @@ async function openIDB(allowUpgrades = true) { }); } if (event.oldVersion < 3) { + // Clear existing stores for a fresh start + transaction.objectStore("records").clear(); + transaction.objectStore("timestamps").clear(); + transaction.objectStore("collections").clear(); // Attachment store db.createObjectStore("attachments", { keyPath: ["cid", "attachmentId"], diff --git a/services/settings/dumps/blocklists/moz.build b/services/settings/dumps/blocklists/moz.build index 825fcd1f10f5..4ca18acd4ff6 100644 --- a/services/settings/dumps/blocklists/moz.build +++ b/services/settings/dumps/blocklists/moz.build @@ -8,15 +8,11 @@ with Files("**"): BUG_COMPONENT = ("Toolkit", "Blocklist Implementation")

# The addons blocklist is also in mobile/android/installer/package-manifest.in -if CONFIG["MOZ_WIDGET_TOOLKIT"] == "android": - # Remove this once bug 1639050 is resolved. - FINAL_TARGET_FILES.defaults.settings.blocklists += ["addons.json"] -else: - FINAL_TARGET_FILES.defaults.settings.blocklists += [ - "addons-bloomfilters.json", - "gfx.json", - "plugins.json", - ] +FINAL_TARGET_FILES.defaults.settings.blocklists += [ + "addons-bloomfilters.json", + "gfx.json", + "plugins.json", +]

FINAL_TARGET_FILES.defaults.settings.blocklists["addons-bloomfilters"] += [ "addons-bloomfilters/addons-mlbf.bin", diff --git a/services/settings/dumps/main/moz.build b/services/settings/dumps/main/moz.build index bf73215e0682..6deac0b6f5bc 100644 --- a/services/settings/dumps/main/moz.build +++ b/services/settings/dumps/main/moz.build @@ -3,18 +3,11 @@ # file, You can obtain one at http://mozilla.org/MPL/2.0/.

FINAL_TARGET_FILES.defaults.settings.main += [ - "anti-tracking-url-decoration.json", "example.json", "hijack-blocklists.json", "language-dictionaries.json", - "password-recipes.json", "password-rules.json", - "search-config.json", "search-default-override-allowlist.json", - "search-telemetry.json", - "sites-classification.json", - "top-sites.json", - "url-classifier-skip-urls.json", "websites-with-shared-credential-backends.json", ]

diff --git a/services/settings/dumps/security-state/moz.build b/services/settings/dumps/security-state/moz.build index 9133cd4e3ed6..0d250ecddbe8 100644 --- a/services/settings/dumps/security-state/moz.build +++ b/services/settings/dumps/security-state/moz.build @@ -3,7 +3,6 @@ # file, You can obtain one at http://mozilla.org/MPL/2.0/.

FINAL_TARGET_FILES.defaults.settings["security-state"] += [ - "intermediates.json", "onecrl.json", ]

diff --git a/toolkit/components/antitracking/antitracking.manifest b/toolkit/components/antitracking/antitracking.manifest index 5eb37f9a3f99..872e6af07575 100644 --- a/toolkit/components/antitracking/antitracking.manifest +++ b/toolkit/components/antitracking/antitracking.manifest @@ -1 +1 @@ -category profile-after-change URLDecorationAnnotationsService @mozilla.org/tracking-url-decoration-service;1 process=main +# category profile-after-change URLDecorationAnnotationsService @mozilla.org/tracking-url-decoration-service;1 process=main diff --git a/toolkit/components/antitracking/components.conf b/toolkit/components/antitracking/components.conf index 0357c874bb8d..9e61c20ebad4 100644 --- a/toolkit/components/antitracking/components.conf +++ b/toolkit/components/antitracking/components.conf @@ -11,13 +11,6 @@ Classes = [ 'jsm': 'resource://gre/modules/TrackingDBService.jsm', 'constructor': 'TrackingDBService', }, - { - 'cid': '{5874af6d-5719-4e1b-b155-ef4eae7fcb32}', - 'contract_ids': ['@mozilla.org/tracking-url-decoration-service;1'], - 'jsm': 'resource://gre/modules/URLDecorationAnnotationsService.jsm', - 'constructor': 'URLDecorationAnnotationsService', - 'processes': ProcessSelector.MAIN_PROCESS_ONLY, - }, { 'cid': '{90d1fd17-2018-4e16-b73c-a04a26fa6dd4}', 'contract_ids': ['@mozilla.org/purge-tracker-service;1'], diff --git a/toolkit/components/search/SearchService.jsm b/toolkit/components/search/SearchService.jsm index 57c77214d319..d111690894b0 100644 --- a/toolkit/components/search/SearchService.jsm +++ b/toolkit/components/search/SearchService.jsm @@ -250,8 +250,6 @@ SearchService.prototype = { // See if we have a settings file so we don't have to parse a bunch of XML. let settings = await this._settings.get();

- this._setupRemoteSettings().catch(Cu.reportError); - await this._loadEngines(settings);

// If we've got this far, but the application is now shutting down,