commit 3b0688d5133e4ea55b926e065c90be0d353683b4
Author: Kathy Brade <brade(a)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 +++
toolkit/mozapps/update/UpdateService.jsm | 20 ++++++++++++++++++++
3 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/toolkit/components/enterprisepolicies/EnterprisePoliciesParent.jsm b/toolkit/components/enterprisepolicies/EnterprisePoliciesParent.jsm
index 8b0a5170cbdd..38e2c2b36a24 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",
@@ -137,6 +143,7 @@ EnterprisePoliciesManager.prototype = {
_chooseProvider() {
let provider = null;
+#ifndef AVOID_SYSTEM_POLICIES
if (AppConstants.platform == "win") {
provider = new WindowsGPOPoliciesProvider();
} else if (AppConstants.platform == "macosx") {
@@ -145,6 +152,7 @@ EnterprisePoliciesManager.prototype = {
if (provider && provider.hasPolicies) {
return provider;
}
+#endif
provider = new JSONPoliciesProvider();
if (provider.hasPolicies) {
@@ -495,7 +503,7 @@ 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
@@ -508,7 +516,7 @@ class JSONPoliciesProvider {
return systemConfigFile;
}
}
-
+#endif
try {
let perUserPath = Services.prefs.getBoolPref(PREF_PER_USER_DIR, false);
if (perUserPath) {
@@ -589,6 +597,7 @@ class JSONPoliciesProvider {
}
}
+#ifndef AVOID_SYSTEM_POLICIES
class WindowsGPOPoliciesProvider {
constructor() {
this._policies = null;
@@ -654,3 +663,4 @@ class macOSPoliciesProvider {
return this._failed;
}
}
+#endif
diff --git a/toolkit/components/enterprisepolicies/moz.build b/toolkit/components/enterprisepolicies/moz.build
index 284089594b2f..b0485aade0e8 100644
--- a/toolkit/components/enterprisepolicies/moz.build
+++ b/toolkit/components/enterprisepolicies/moz.build
@@ -21,6 +21,9 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] != "android":
EXTRA_JS_MODULES += [
'EnterprisePolicies.jsm',
'EnterprisePoliciesContent.jsm',
+ ]
+
+ EXTRA_PP_JS_MODULES += [
'EnterprisePoliciesParent.jsm',
]
diff --git a/toolkit/mozapps/update/UpdateService.jsm b/toolkit/mozapps/update/UpdateService.jsm
index 3338f7f94d72..35f3b6bb3a26 100644
--- a/toolkit/mozapps/update/UpdateService.jsm
+++ b/toolkit/mozapps/update/UpdateService.jsm
@@ -2811,6 +2811,10 @@ UpdateService.prototype = {
_checkForBackgroundUpdates: function AUS__checkForBackgroundUpdates(
isNotify
) {
+ if (this.disabledByPolicy) {
+ return;
+ }
+
this._isNotify = isNotify;
// Histogram IDs:
@@ -3311,6 +3315,14 @@ UpdateService.prototype = {
* See nsIUpdateService.idl
*/
get canApplyUpdates() {
+ if (this.disabledByPolicy) {
+ LOG(
+ "UpdateService.canApplyUpdates - unable to apply updates, " +
+ "the option has been disabled by the administrator."
+ );
+ return false;
+ }
+
return getCanApplyUpdates() && hasUpdateMutex();
},
@@ -3318,6 +3330,14 @@ UpdateService.prototype = {
* See nsIUpdateService.idl
*/
get canStageUpdates() {
+ if (this.disabledByPolicy) {
+ LOG(
+ "UpdateService.canStageUpdates - unable to stage updates, " +
+ "the option has been disabled by the administrator."
+ );
+ return false;
+ }
+
return getCanStageUpdates();
},