Allow restricting extension installation

Resolves: RHEL-25017
This commit is contained in:
Florian Müllner 2024-02-10 01:54:43 +01:00
parent 4bc20b36cb
commit 300358e159
2 changed files with 98 additions and 1 deletions

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@ -0,0 +1,92 @@
From 91449e6a19af63eebaf5f97f85ba44f69259075a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
Date: Sat, 10 Feb 2024 00:58:27 +0100
Subject: [PATCH] extensionSystem: Support locking down extension installation
Currently extensions can only be locked down completely by
restricting the `enabled-extensions` key via dconf.
This is too restrictive for environments that want to allow users
to customize their system with extensions, while still limiting
the set of possible extensions.
To fill that gap, add a new `allow-extension-installation` setting,
which restricts extensions to system extensions when disabled.
As the setting is mainly intended for locking down by system
administrators, there is no attempt to load/unload extensions
on settings changes.
---
data/org.gnome.shell.gschema.xml.in | 11 +++++++++++
js/ui/extensionDownloader.js | 6 ++++++
js/ui/extensionSystem.js | 8 ++++++--
3 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/data/org.gnome.shell.gschema.xml.in b/data/org.gnome.shell.gschema.xml.in
index 6f1c424bad..b5921983cd 100644
--- a/data/org.gnome.shell.gschema.xml.in
+++ b/data/org.gnome.shell.gschema.xml.in
@@ -40,6 +40,17 @@
the “enabled-extension” setting.
</description>
</key>
+ <key name="allow-extension-installation" type="b">
+ <default>true</default>
+ <summary>Allow extension installation</summary>
+ <description>
+ Allow users to install extensions in their home folder. If disabled,
+ the InstallRemoteExtension D-Bus method will fail, and extensions
+ are only loaded from system directories on startup.
+ It does not affect extensions that are already loaded, so a change
+ only takes full effect on the next login.
+ </description>
+ </key>
<key name="disable-extension-version-validation" type="b">
<default>false</default>
<summary>Disables the validation of extension version compatibility</summary>
diff --git a/js/ui/extensionDownloader.js b/js/ui/extensionDownloader.js
index 471ddab147..01ed165c01 100644
--- a/js/ui/extensionDownloader.js
+++ b/js/ui/extensionDownloader.js
@@ -17,6 +17,12 @@ var REPOSITORY_URL_UPDATE = 'https://extensions.gnome.org/update-info/';
let _httpSession;
function installExtension(uuid, invocation) {
+ if (!global.settings.get_boolean('allow-extension-installation')) {
+ invocation.return_dbus_error('org.gnome.Shell.InstallError',
+ 'Extension installation is not allowed');
+ return;
+ }
+
const oldExt = Main.extensionManager.lookup(uuid);
if (oldExt && oldExt.type === ExtensionUtils.ExtensionType.SYSTEM) {
log('extensionDownloader: Trying to replace system extension %s'.format(uuid));
diff --git a/js/ui/extensionSystem.js b/js/ui/extensionSystem.js
index 937f861994..528d9ea450 100644
--- a/js/ui/extensionSystem.js
+++ b/js/ui/extensionSystem.js
@@ -64,7 +64,10 @@ var ExtensionManager = class {
get updatesSupported() {
const appSys = Shell.AppSystem.get_default();
- return appSys.lookup_app('org.gnome.Extensions.desktop') !== null;
+ const hasUpdatesApp =
+ appSys.lookup_app('org.gnome.Extensions.desktop') !== null;
+ const allowed = global.settings.get_boolean('allow-extension-installation');
+ return allowed && hasUpdatesApp;
}
lookup(uuid) {
@@ -595,7 +598,8 @@ var ExtensionManager = class {
this._enabledExtensions = this._getEnabledExtensions();
let perUserDir = Gio.File.new_for_path(global.userdatadir);
- FileUtils.collectFromDatadirs('extensions', true, (dir, info) => {
+ const includeUserDir = global.settings.get_boolean('allow-extension-installation');
+ FileUtils.collectFromDatadirs('extensions', includeUserDir, (dir, info) => {
let fileType = info.get_file_type();
if (fileType != Gio.FileType.DIRECTORY)
return;
--
2.43.0

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@ -2,7 +2,7 @@
Name: gnome-shell Name: gnome-shell
Version: 40.10 Version: 40.10
Release: 16%{?dist} Release: 17%{?dist}
Summary: Window management and application launching for GNOME Summary: Window management and application launching for GNOME
License: GPLv2+ License: GPLv2+
@ -59,6 +59,7 @@ Patch55: 0001-window-tracker-Only-emit-tracked-windows-changed-on-.patch
Patch56: owe-support.patch Patch56: owe-support.patch
Patch57: 0001-windowMenu-Ignore-release.patch Patch57: 0001-windowMenu-Ignore-release.patch
Patch58: optional-portal-helper.patch Patch58: optional-portal-helper.patch
Patch59: 0001-extensionSystem-Support-locking-down-extension-insta.patch
%define eds_version 3.33.1 %define eds_version 3.33.1
%define gnome_desktop_version 3.35.91 %define gnome_desktop_version 3.35.91
@ -278,6 +279,10 @@ desktop-file-validate %{buildroot}%{_datadir}/applications/evolution-calendar.de
%{_mandir}/man1/gnome-shell.1* %{_mandir}/man1/gnome-shell.1*
%changelog %changelog
* Sat Feb 10 2024 Florian Müllner <fmuellner@redhat.com> - 40.10-17
- Allow restricting extension installation
Resolves: RHEL-25017
* Wed Nov 01 2023 Michael Catanzaro <mcatanzaro@redhat.com> - 40.10-16 * Wed Nov 01 2023 Michael Catanzaro <mcatanzaro@redhat.com> - 40.10-16
- Disable captive portal helper if WebKitGTK is not installed - Disable captive portal helper if WebKitGTK is not installed
Resolves: RHEL-10487 Resolves: RHEL-10487