6241a8269f
We were defining OUT_OF_DATE as a possible state, but never using it properly. https://bugzilla.gnome.org/show_bug.cgi?id=654770
436 lines
14 KiB
JavaScript
436 lines
14 KiB
JavaScript
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
|
|
|
|
const Lang = imports.lang;
|
|
const Signals = imports.signals;
|
|
|
|
const GLib = imports.gi.GLib;
|
|
const Gio = imports.gi.Gio;
|
|
const St = imports.gi.St;
|
|
const Shell = imports.gi.Shell;
|
|
const Soup = imports.gi.Soup;
|
|
|
|
const Config = imports.misc.config;
|
|
|
|
const ExtensionState = {
|
|
ENABLED: 1,
|
|
DISABLED: 2,
|
|
ERROR: 3,
|
|
OUT_OF_DATE: 4,
|
|
DOWNLOADING: 5,
|
|
|
|
// Used as an error state for operations on unknown extensions,
|
|
// should never be in a real extensionMeta object.
|
|
UNINSTALLED: 99
|
|
};
|
|
|
|
const ExtensionType = {
|
|
SYSTEM: 1,
|
|
PER_USER: 2
|
|
};
|
|
|
|
const _httpSession = new Soup.SessionAsync();
|
|
|
|
// The unfortunate state of gjs, gobject-introspection and libsoup
|
|
// means that I have to do a hack to add a feature.
|
|
// See: https://bugzilla.gnome.org/show_bug.cgi?id=655189 for context.
|
|
|
|
if (Soup.Session.prototype.add_feature != null)
|
|
Soup.Session.prototype.add_feature.call(_httpSession, new Soup.ProxyResolverDefault());
|
|
|
|
// Maps uuid -> metadata object
|
|
const extensionMeta = {};
|
|
// Maps uuid -> importer object (extension directory tree)
|
|
const extensions = {};
|
|
// Maps uuid -> extension state object (returned from init())
|
|
const extensionStateObjs = {};
|
|
// Arrays of uuids
|
|
var enabledExtensions;
|
|
// GFile for user extensions
|
|
var userExtensionsDir = null;
|
|
|
|
// We don't really have a class to add signals on. So, create
|
|
// a simple dummy object, add the signal methods, and export those
|
|
// publically.
|
|
var _signals = {};
|
|
Signals.addSignalMethods(_signals);
|
|
|
|
const connect = Lang.bind(_signals, _signals.connect);
|
|
const disconnect = Lang.bind(_signals, _signals.disconnect);
|
|
|
|
// UUID => Array of error messages
|
|
var errors = {};
|
|
|
|
const ENABLED_EXTENSIONS_KEY = 'enabled-extensions';
|
|
|
|
/**
|
|
* versionCheck:
|
|
* @required: an array of versions we're compatible with
|
|
* @current: the version we have
|
|
*
|
|
* Check if a component is compatible for an extension.
|
|
* @required is an array, and at least one version must match.
|
|
* @current must be in the format <major>.<minor>.<point>.<micro>
|
|
* <micro> is always ignored
|
|
* <point> is ignored if <minor> is even (so you can target the
|
|
* whole stable release)
|
|
* <minor> and <major> must match
|
|
* Each target version must be at least <major> and <minor>
|
|
*/
|
|
function versionCheck(required, current) {
|
|
let currentArray = current.split('.');
|
|
let major = currentArray[0];
|
|
let minor = currentArray[1];
|
|
let point = currentArray[2];
|
|
for (let i = 0; i < required.length; i++) {
|
|
let requiredArray = required[i].split('.');
|
|
if (requiredArray[0] == major &&
|
|
requiredArray[1] == minor &&
|
|
(requiredArray[2] == point ||
|
|
(requiredArray[2] == undefined && parseInt(minor) % 2 == 0)))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function installExtensionFromManifestURL(uuid, url) {
|
|
_httpSession.queue_message(
|
|
Soup.Message.new('GET', url),
|
|
function(session, message) {
|
|
if (message.status_code != Soup.KnownStatusCode.OK) {
|
|
logExtensionError(uuid, 'downloading manifest: ' + message.status_code.toString());
|
|
return;
|
|
}
|
|
|
|
let manifest;
|
|
try {
|
|
manifest = JSON.parse(message.response_body.data);
|
|
} catch (e) {
|
|
logExtensionError(uuid, 'parsing: ' + e.toString());
|
|
return;
|
|
}
|
|
|
|
if (uuid != manifest['uuid']) {
|
|
logExtensionError(uuid, 'manifest: manifest uuids do not match');
|
|
return;
|
|
}
|
|
|
|
let meta = extensionMeta[uuid] = { uuid: uuid,
|
|
state: ExtensionState.DOWNLOADING,
|
|
error: '' };
|
|
|
|
_signals.emit('extension-state-changed', meta);
|
|
|
|
installExtensionFromManifest(manifest, meta);
|
|
});
|
|
}
|
|
|
|
function installExtensionFromManifest(manifest, meta) {
|
|
let uuid = manifest['uuid'];
|
|
let name = manifest['name'];
|
|
|
|
if (!versionCheck(manifest['shell-version'], Config.PACKAGE_VERSION)) {
|
|
meta.state = ExtensionState.OUT_OF_DATE;
|
|
logExtensionError(uuid, 'version: ' + name + ' is not compatible with current GNOME Shell version', meta.state);
|
|
return;
|
|
}
|
|
|
|
let url = manifest['__installer'];
|
|
_httpSession.queue_message(Soup.Message.new('GET', url),
|
|
function(session, message) {
|
|
gotExtensionZipFile(session, message, uuid);
|
|
});
|
|
}
|
|
|
|
function gotExtensionZipFile(session, message, uuid) {
|
|
if (message.status_code != Soup.KnownStatusCode.OK) {
|
|
logExtensionError(uuid, 'downloading extension: ' + message.status_code);
|
|
return;
|
|
}
|
|
|
|
// FIXME: use a GFile mkstemp-type method once one exists
|
|
let fd, tmpzip;
|
|
try {
|
|
[fd, tmpzip] = GLib.file_open_tmp('XXXXXX.shell-extension.zip');
|
|
} catch (e) {
|
|
logExtensionError(uuid, 'tempfile: ' + e.toString());
|
|
return;
|
|
}
|
|
|
|
let stream = new Gio.UnixOutputStream({ fd: fd });
|
|
let dir = userExtensionsDir.get_child(uuid);
|
|
Shell.write_soup_message_to_stream(stream, message);
|
|
stream.close(null);
|
|
let [success, pid] = GLib.spawn_async(null,
|
|
['unzip', '-uod', dir.get_path(), '--', tmpzip],
|
|
null,
|
|
GLib.SpawnFlags.SEARCH_PATH | GLib.SpawnFlags.DO_NOT_REAP_CHILD,
|
|
null);
|
|
|
|
if (!success) {
|
|
logExtensionError(uuid, 'extract: could not extract');
|
|
return;
|
|
}
|
|
|
|
GLib.child_watch_add(GLib.PRIORITY_DEFAULT, pid, function(pid, status) {
|
|
GLib.spawn_close_pid(pid);
|
|
loadExtension(dir, true, ExtensionType.PER_USER);
|
|
});
|
|
}
|
|
|
|
function disableExtension(uuid) {
|
|
let meta = extensionMeta[uuid];
|
|
if (!meta)
|
|
return;
|
|
|
|
if (meta.state != ExtensionState.ENABLED)
|
|
return;
|
|
|
|
let extensionState = extensionStateObjs[uuid];
|
|
|
|
try {
|
|
extensionState.disable();
|
|
} catch(e) {
|
|
logExtensionError(uuid, e.toString());
|
|
return;
|
|
}
|
|
|
|
meta.state = ExtensionState.DISABLED;
|
|
_signals.emit('extension-state-changed', meta);
|
|
}
|
|
|
|
function enableExtension(uuid) {
|
|
let meta = extensionMeta[uuid];
|
|
if (!meta)
|
|
return;
|
|
|
|
if (meta.state != ExtensionState.DISABLED)
|
|
return;
|
|
|
|
let extensionState = extensionStateObjs[uuid];
|
|
|
|
try {
|
|
extensionState.enable();
|
|
} catch(e) {
|
|
logExtensionError(uuid, e.toString());
|
|
return;
|
|
}
|
|
|
|
meta.state = ExtensionState.ENABLED;
|
|
_signals.emit('extension-state-changed', meta);
|
|
}
|
|
|
|
function logExtensionError(uuid, message, state) {
|
|
if (!errors[uuid]) errors[uuid] = [];
|
|
errors[uuid].push(message);
|
|
global.logError('Extension "%s" had error: %s'.format(uuid, message));
|
|
state = state || ExtensionState.ERROR;
|
|
_signals.emit('extension-state-changed', { uuid: uuid,
|
|
error: message,
|
|
state: state });
|
|
}
|
|
|
|
function loadExtension(dir, enabled, type) {
|
|
let info;
|
|
let uuid = dir.get_basename();
|
|
|
|
let metadataFile = dir.get_child('metadata.json');
|
|
if (!metadataFile.query_exists(null)) {
|
|
logExtensionError(uuid, 'Missing metadata.json');
|
|
return;
|
|
}
|
|
|
|
let metadataContents;
|
|
try {
|
|
metadataContents = Shell.get_file_contents_utf8_sync(metadataFile.get_path());
|
|
} catch (e) {
|
|
logExtensionError(uuid, 'Failed to load metadata.json: ' + e);
|
|
return;
|
|
}
|
|
let meta;
|
|
try {
|
|
meta = JSON.parse(metadataContents);
|
|
} catch (e) {
|
|
logExtensionError(uuid, 'Failed to parse metadata.json: ' + e);
|
|
return;
|
|
}
|
|
|
|
let requiredProperties = ['uuid', 'name', 'description', 'shell-version'];
|
|
for (let i = 0; i < requiredProperties.length; i++) {
|
|
let prop = requiredProperties[i];
|
|
if (!meta[prop]) {
|
|
logExtensionError(uuid, 'missing "' + prop + '" property in metadata.json');
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (extensions[uuid] != undefined) {
|
|
logExtensionError(uuid, "extension already loaded");
|
|
return;
|
|
}
|
|
|
|
// Encourage people to add this
|
|
if (!meta['url']) {
|
|
global.log('Warning: Missing "url" property in metadata.json');
|
|
}
|
|
|
|
if (uuid != meta.uuid) {
|
|
logExtensionError(uuid, 'uuid "' + meta.uuid + '" from metadata.json does not match directory name "' + uuid + '"');
|
|
return;
|
|
}
|
|
|
|
if (!versionCheck(meta['shell-version'], Config.PACKAGE_VERSION) ||
|
|
(meta['js-version'] && !versionCheck(meta['js-version'], Config.GJS_VERSION))) {
|
|
logExtensionError(uuid, 'extension is not compatible with current GNOME Shell and/or GJS version');
|
|
return;
|
|
}
|
|
|
|
extensionMeta[uuid] = meta;
|
|
meta.type = type;
|
|
meta.path = dir.get_path();
|
|
meta.error = '';
|
|
|
|
// Default to error, we set success as the last step
|
|
meta.state = ExtensionState.ERROR;
|
|
|
|
if (!versionCheck(meta['shell-version'], Config.PACKAGE_VERSION) ||
|
|
(meta['js-version'] && !versionCheck(meta['js-version'], Config.GJS_VERSION))) {
|
|
logExtensionError(uuid, 'extension is not compatible with current GNOME Shell and/or GJS version', ExtensionState.OUT_OF_DATE);
|
|
meta.state = ExtensionState.OUT_OF_DATE;
|
|
return;
|
|
}
|
|
|
|
let extensionJs = dir.get_child('extension.js');
|
|
if (!extensionJs.query_exists(null)) {
|
|
logExtensionError(uuid, 'Missing extension.js');
|
|
return;
|
|
}
|
|
let stylesheetPath = null;
|
|
let themeContext = St.ThemeContext.get_for_stage(global.stage);
|
|
let theme = themeContext.get_theme();
|
|
let stylesheetFile = dir.get_child('stylesheet.css');
|
|
if (stylesheetFile.query_exists(null)) {
|
|
try {
|
|
theme.load_stylesheet(stylesheetFile.get_path());
|
|
} catch (e) {
|
|
logExtensionError(uuid, 'Stylesheet parse error: ' + e);
|
|
return;
|
|
}
|
|
}
|
|
|
|
let extensionModule;
|
|
let extensionState = null;
|
|
try {
|
|
global.add_extension_importer('imports.ui.extensionSystem.extensions', meta.uuid, dir.get_path());
|
|
extensionModule = extensions[meta.uuid].extension;
|
|
} catch (e) {
|
|
if (stylesheetPath != null)
|
|
theme.unload_stylesheet(stylesheetPath);
|
|
logExtensionError(uuid, e);
|
|
return;
|
|
}
|
|
|
|
if (!extensionModule.init) {
|
|
logExtensionError(uuid, 'missing \'init\' function');
|
|
return;
|
|
}
|
|
|
|
try {
|
|
extensionState = extensionModule.init(meta);
|
|
} catch (e) {
|
|
if (stylesheetPath != null)
|
|
theme.unload_stylesheet(stylesheetPath);
|
|
logExtensionError(uuid, 'Failed to evaluate init function:' + e);
|
|
return;
|
|
}
|
|
|
|
if (!extensionState)
|
|
extensionState = extensionModule;
|
|
extensionStateObjs[uuid] = extensionState;
|
|
|
|
if (!extensionState.enable) {
|
|
logExtensionError(uuid, 'missing \'enable\' function');
|
|
return;
|
|
}
|
|
if (!extensionState.disable) {
|
|
logExtensionError(uuid, 'missing \'disable\' function');
|
|
return;
|
|
}
|
|
|
|
meta.state = ExtensionState.DISABLED;
|
|
|
|
if (enabled)
|
|
enableExtension(uuid);
|
|
|
|
_signals.emit('extension-loaded', meta.uuid);
|
|
_signals.emit('extension-state-changed', meta);
|
|
global.log('Loaded extension ' + meta.uuid);
|
|
}
|
|
|
|
function onEnabledExtensionsChanged() {
|
|
let newEnabledExtensions = global.settings.get_strv(ENABLED_EXTENSIONS_KEY);
|
|
|
|
// Find and enable all the newly enabled extensions: UUIDs found in the
|
|
// new setting, but not in the old one.
|
|
newEnabledExtensions.filter(function(uuid) {
|
|
return enabledExtensions.indexOf(uuid) == -1;
|
|
}).forEach(function(uuid) {
|
|
enableExtension(uuid);
|
|
});
|
|
|
|
// Find and disable all the newly disabled extensions: UUIDs found in the
|
|
// old setting, but not in the new one.
|
|
enabledExtensions.filter(function(item) {
|
|
return newEnabledExtensions.indexOf(item) == -1;
|
|
}).forEach(function(uuid) {
|
|
disableExtension(uuid);
|
|
});
|
|
|
|
enabledExtensions = newEnabledExtensions;
|
|
}
|
|
|
|
function init() {
|
|
let userExtensionsPath = GLib.build_filenamev([global.userdatadir, 'extensions']);
|
|
userExtensionsDir = Gio.file_new_for_path(userExtensionsPath);
|
|
try {
|
|
userExtensionsDir.make_directory_with_parents(null);
|
|
} catch (e) {
|
|
global.logError('' + e);
|
|
}
|
|
|
|
global.settings.connect('changed::' + ENABLED_EXTENSIONS_KEY, onEnabledExtensionsChanged);
|
|
enabledExtensions = global.settings.get_strv(ENABLED_EXTENSIONS_KEY);
|
|
}
|
|
|
|
function _loadExtensionsIn(dir, type) {
|
|
let fileEnum;
|
|
let file, info;
|
|
try {
|
|
fileEnum = dir.enumerate_children('standard::*', Gio.FileQueryInfoFlags.NONE, null);
|
|
} catch (e) {
|
|
global.logError('' + e);
|
|
return;
|
|
}
|
|
|
|
while ((info = fileEnum.next_file(null)) != null) {
|
|
let fileType = info.get_file_type();
|
|
if (fileType != Gio.FileType.DIRECTORY)
|
|
continue;
|
|
let name = info.get_name();
|
|
let child = dir.get_child(name);
|
|
let enabled = enabledExtensions.indexOf(name) != -1;
|
|
loadExtension(child, enabled, type);
|
|
}
|
|
fileEnum.close(null);
|
|
}
|
|
|
|
function loadExtensions() {
|
|
_loadExtensionsIn(userExtensionsDir, ExtensionType.PER_USER);
|
|
let systemDataDirs = GLib.get_system_data_dirs();
|
|
for (let i = 0; i < systemDataDirs.length; i++) {
|
|
let dirPath = systemDataDirs[i] + '/gnome-shell/extensions';
|
|
let dir = Gio.file_new_for_path(dirPath);
|
|
if (dir.query_exists(null))
|
|
_loadExtensionsIn(dir, ExtensionType.SYSTEM);
|
|
}
|
|
}
|