commit c9508ede20a896e78c5fe56db14a46353b7d7689 Author: Kathy Brade brade@pearlcrescent.com Date: Thu Apr 16 17:07:09 2020 -0400

Bug 32418: Allow updates to be disabled via an enterprise policy.

Restrict the Enterprise Policies mechanism to only consult a policies.json file (avoiding the Windows Registry and macOS's file system attributes).

Add a few disabledByPolicy() checks to the update service to avoid extraneous (and potentially confusing) log messages when updates are disabled by policy.

Sample content for distribution/policies.json: { "policies": { "DisableAppUpdate": true } }

On Linux, avoid reading policies from /etc/firefox/policies/policies.json --- .../enterprisepolicies/EnterprisePoliciesParent.jsm | 14 ++++++++++++-- toolkit/components/enterprisepolicies/moz.build | 3 +++ 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/toolkit/components/enterprisepolicies/EnterprisePoliciesParent.jsm b/toolkit/components/enterprisepolicies/EnterprisePoliciesParent.jsm index f5de14798de1..9c702ea3fde8 100644 --- a/toolkit/components/enterprisepolicies/EnterprisePoliciesParent.jsm +++ b/toolkit/components/enterprisepolicies/EnterprisePoliciesParent.jsm @@ -4,6 +4,10 @@

var EXPORTED_SYMBOLS = ["EnterprisePoliciesManager"];

+// To ensure that policies intended for Firefox or another browser will not +// be used, Tor Browser only looks for policies in ${InstallDir}/distribution +#define AVOID_SYSTEM_POLICIES MOZ_PROXY_BYPASS_PROTECTION + const { XPCOMUtils } = ChromeUtils.import( "resource://gre/modules/XPCOMUtils.jsm" ); @@ -13,9 +17,11 @@ const { AppConstants } = ChromeUtils.import( );

XPCOMUtils.defineLazyModuleGetters(this, { +#ifndef AVOID_SYSTEM_POLICIES WindowsGPOParser: "resource://gre/modules/policies/WindowsGPOParser.jsm", macOSPoliciesParser: "resource://gre/modules/policies/macOSPoliciesParser.jsm", +#endif Policies: "resource:///modules/policies/Policies.jsm", JsonSchemaValidator: "resource://gre/modules/components-utils/JsonSchemaValidator.jsm", @@ -140,11 +146,13 @@ EnterprisePoliciesManager.prototype = {

_chooseProvider() { let platformProvider = null; +#ifndef AVOID_SYSTEM_POLICIES if (AppConstants.platform == "win") { platformProvider = new WindowsGPOPoliciesProvider(); } else if (AppConstants.platform == "macosx") { platformProvider = new macOSPoliciesProvider(); } +#endif let jsonProvider = new JSONPoliciesProvider(); if (platformProvider && platformProvider.hasPolicies) { if (jsonProvider.hasPolicies) { @@ -491,7 +499,7 @@ class JSONPoliciesProvider {

_getConfigurationFile() { let configFile = null; - +#ifndef AVOID_SYSTEM_POLICIES if (AppConstants.platform == "linux") { let systemConfigFile = Cc["@mozilla.org/file/local;1"].createInstance( Ci.nsIFile @@ -504,7 +512,7 @@ class JSONPoliciesProvider { return systemConfigFile; } } - +#endif try { let perUserPath = Services.prefs.getBoolPref(PREF_PER_USER_DIR, false); if (perUserPath) { @@ -585,6 +593,7 @@ class JSONPoliciesProvider { } }

+#ifndef AVOID_SYSTEM_POLICIES class WindowsGPOPoliciesProvider { constructor() { this._policies = null; @@ -686,3 +695,4 @@ class CombinedProvider { return false; } } +#endif diff --git a/toolkit/components/enterprisepolicies/moz.build b/toolkit/components/enterprisepolicies/moz.build index 09d2046e1bd7..3f685d3fbbd6 100644 --- a/toolkit/components/enterprisepolicies/moz.build +++ b/toolkit/components/enterprisepolicies/moz.build @@ -19,6 +19,9 @@ if CONFIG["MOZ_WIDGET_TOOLKIT"] != "android": EXTRA_JS_MODULES += [ "EnterprisePolicies.jsm", "EnterprisePoliciesContent.jsm", + ] + + EXTRA_PP_JS_MODULES += [ "EnterprisePoliciesParent.jsm", ]