Split some common code out of gdm/loginDialog
This will be reused by session unlocking. https://bugzilla.gnome.org/show_bug.cgi?id=619955
This commit is contained in:
Giovanni Campagna
255
js/gdm/util.js
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255
js/gdm/util.js
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@ -0,0 +1,255 @@
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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Gio = imports.gi.Gio;
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const Lang = imports.lang;
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const Signals = imports.signals;
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const Batch = imports.gdm.batch;
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const Fprint = imports.gdm.fingerprint;
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const Main = imports.ui.main;
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const Tweener = imports.ui.tweener;
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const PASSWORD_SERVICE_NAME = 'gdm-password';
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const FINGERPRINT_SERVICE_NAME = 'gdm-fingerprint';
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const FADE_ANIMATION_TIME = 0.16;
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const LOGIN_SCREEN_SCHEMA = 'org.gnome.login-screen';
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const FINGERPRINT_AUTHENTICATION_KEY = 'enable-fingerprint-authentication';
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const BANNER_MESSAGE_KEY = 'banner-message-enable';
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const BANNER_MESSAGE_TEXT_KEY = 'banner-message-text';
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const LOGO_KEY = 'logo';
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function fadeInActor(actor) {
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if (actor.opacity == 255 && actor.visible)
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return null;
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let hold = new Batch.Hold();
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actor.show();
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let [minHeight, naturalHeight] = actor.get_preferred_height(-1);
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actor.opacity = 0;
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actor.set_height(0);
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Tweener.addTween(actor,
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{ opacity: 255,
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height: naturalHeight,
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time: FADE_ANIMATION_TIME,
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transition: 'easeOutQuad',
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onComplete: function() {
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this.set_height(-1);
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hold.release();
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},
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});
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return hold;
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}
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function fadeOutActor(actor) {
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if (!actor.visible || actor.opacity == 0) {
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actor.opacity = 0;
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actor.hide();
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return null;
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}
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let hold = new Batch.Hold();
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Tweener.addTween(actor,
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{ opacity: 0,
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height: 0,
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time: FADE_ANIMATION_TIME,
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transition: 'easeOutQuad',
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onComplete: function() {
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this.hide();
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this.set_height(-1);
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hold.release();
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},
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});
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return hold;
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}
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const ShellUserVerifier = new Lang.Class({
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Name: 'ShellUserVerifier',
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_init: function(client) {
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this._client = client;
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this._settings = new Gio.Settings({ schema: LOGIN_SCREEN_SCHEMA });
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this._cancellable = new Gio.Cancellable();
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this._fprintManager = new Fprint.FprintManager();
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this._checkForFingerprintReader();
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},
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begin: function(userName, hold) {
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this._hold = hold;
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this._userName = userName;
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if (userName) {
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// If possible, reauthenticate an already running session,
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// so any session specific credentials get updated appropriately
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this._client.open_reauthentication_channel(userName, this._cancellable,
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Lang.bind(this, this._reauthenticationChannelOpened));
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} else {
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this._client.get_user_verifier(this._cancellable, Lang.bind(this, this._userVerifierGot));
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}
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},
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cancel: function() {
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this._cancellable.cancel();
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if (this._userVerifier)
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this._userVerifier.call_cancel_sync(null);
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},
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clear: function() {
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this._cancellable.cancel();
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if (this._userVerifier) {
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this._userVerifier.run_dispose();
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this._userVerifier = null;
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}
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},
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answerQuery: function(serviceName, answer) {
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this._userVerifier.call_answer_query(serviceName, answer, this._cancellable, null);
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},
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_checkForFingerprintReader: function() {
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this._haveFingerprintReader = false;
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if (!this._settings.get_boolean(FINGERPRINT_AUTHENTICATION_KEY))
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return;
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this._fprintManager.GetDefaultDeviceRemote(Gio.DBusCallFlags.NONE, this._cancellable, Lang.bind(this,
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function(device, error) {
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if (!error && device)
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this._haveFingerprintReader = true;
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}));
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},
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_reauthenticationChannelOpened: function(client, result) {
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try {
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this._userVerifier = client.open_reauthentication_channel_finish(result);
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this._connectSignals();
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this._beginVerification();
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this._hold.release();
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} catch (e) {
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// If there's no session running, or it otherwise fails, then fall back
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// to performing verification from this login session
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client.get_user_verifier(this._cancellable, Lang.bind(this, this._userVerifierGot));
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}
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},
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_userVerifierGot: function(client, result) {
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this._userVerifier = client.get_user_verifier_finish(result);
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this._connectSignals();
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this._beginVerification();
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this._hold.release();
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},
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_connectSignals: function() {
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this._userVerifier.connect('info', Lang.bind(this, this._onInfo));
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this._userVerifier.connect('problem', Lang.bind(this, this._onProblem));
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this._userVerifier.connect('info-query', Lang.bind(this, this._onInfoQuery));
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this._userVerifier.connect('secret-info-query', Lang.bind(this, this._onSecretInfoQuery));
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this._userVerifier.connect('conversation-stopped', Lang.bind(this, this._onConversationStopped));
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this._userVerifier.connect('reset', Lang.bind(this, this._onReset));
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this._userVerifier.connect('verification-complete', Lang.bind(this, this._onVerificationComplete));
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},
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_beginVerification: function() {
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this._hold.acquire();
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if (this._userName) {
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this._userVerifier.call_begin_verification_for_user(PASSWORD_SERVICE_NAME,
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this._userName,
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this._cancellable,
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Lang.bind(this, function(obj, result) {
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obj.call_begin_verification_for_user_finish(result);
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this._hold.release();
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}));
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if (this._haveFingerprintReader) {
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this._hold.acquire();
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this._userVerifier.call_begin_verification_for_user(FINGERPRINT_SERVICE_NAME,
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this._userName,
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this._cancellable,
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Lang.bind(this, function(obj, result) {
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obj.call_begin_verification_for_user_finish(result);
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this._hold.release();
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}));
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}
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} else {
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this._userVerifier.call_begin_verification(PASSWORD_SERVICE_NAME,
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this._cancellable,
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Lang.bind(this, function(obj, result) {
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obj.call_begin_verification_finish(result);
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this._hold.release();
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}));
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}
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},
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_onInfo: function(client, serviceName, info) {
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// We don't display fingerprint messages, because they
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// have words like UPEK in them. Instead we use the messages
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// as a cue to display our own message.
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if (serviceName == FINGERPRINT_SERVICE_NAME &&
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this._haveFingerprintReader) {
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this.emit('show-fingerprint-prompt');
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} else if (serviceName == PASSWORD_SERVICE_NAME) {
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Main.notifyError(info);
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}
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},
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_onProblem: function(client, serviceName, problem) {
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// we don't want to show auth failed messages to
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// users who haven't enrolled their fingerprint.
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if (serviceName != PASSWORD_SERVICE_NAME)
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return;
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Main.notifyError(problem);
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},
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_onInfoQuery: function(client, serviceName, question) {
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// We only expect questions to come from the main auth service
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if (serviceName != PASSWORD_SERVICE_NAME)
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return;
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this.emit('ask-question', serviceName, question, '');
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},
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_onSecretInfoQuery: function(client, serviceName, secretQuestion) {
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// We only expect secret requests to come from the main auth service
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if (serviceName != PASSWORD_SERVICE_NAME)
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return;
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this.emit('ask-question', serviceName, secretQuestion, '\u25cf');
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},
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_onReset: function() {
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this._userVerifier.run_dispose();
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this._userVerifier = null;
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this._checkForFingerprintReader();
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this.emit('reset');
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},
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_onVerificationComplete: function() {
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this.emit('verification-complete');
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},
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_onConversationStopped: function(client, serviceName) {
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// if the password service fails, then cancel everything.
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// But if, e.g., fingerprint fails, still give
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// password authentication a chance to succeed
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if (serviceName == PASSWORD_SERVICE_NAME) {
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this.emit('verification-failed');
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} else if (serviceName == FINGERPRINT_SERVICE_NAME) {
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this.emit('hide-fingerprint-prompt');
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}
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},
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});
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Signals.addSignalMethods(ShellUserVerifier.prototype);
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