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extensionSystem: Support locking down extension installation

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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.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3180>
This commit is contained in:
Florian Müllner
2024-02-10 00:58:27 +01:00
committed by Marge Bot
parent 8f2ab674fc
commit c170d6c956
4 changed files with 26 additions and 3 deletions
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10
js/ui/extensionSystem.js
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@ -86,8 +86,11 @@ export class ExtensionManager extends Signals.EventEmitter {
get updatesSupported() {
const appSys = Shell.AppSystem.get_default();
return (appSys.lookup_app('org.gnome.Extensions.desktop') !== null) ||
(appSys.lookup_app('com.mattjakeman.ExtensionManager.desktop') !== null);
const hasUpdatesApp =
appSys.lookup_app('org.gnome.Extensions.desktop') !== null ||
appSys.lookup_app('com.mattjakeman.ExtensionManager.desktop') !== null;
const allowed = global.settings.get_boolean('allow-extension-installation');
return allowed && hasUpdatesApp;
}
lookup(uuid) {
@ -745,7 +748,8 @@ export class ExtensionManager extends Signals.EventEmitter {
let perUserDir = Gio.File.new_for_path(global.userdatadir);
const extensionFiles = [...FileUtils.collectFromDatadirs('extensions', true)];
const includeUserDir = global.settings.get_boolean('allow-extension-installation');
const extensionFiles = [...FileUtils.collectFromDatadirs('extensions', includeUserDir)];
const extensionObjects = extensionFiles.map(({dir, info}) => {
let fileType = info.get_file_type();
if (fileType !== Gio.FileType.DIRECTORY)