gnome-shell/js/gdm/authPrompt.js
Jasper St. Pierre 92c283da4d gdm: Move the verificationStatus state machine to ShellUserVerifier
The idea here is that the ShellUserVerifier does all the logic of
identifying the user, and the AuthPrompt is simply the UI on top
of it.

Thus, it makes sense for more of the state machine to be driven by
the ShellUserVerifier.

This will become more apparent in the next commit.
2014-03-07 18:47:37 -05:00

479 lines
17 KiB
JavaScript

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Clutter = imports.gi.Clutter;
const Lang = imports.lang;
const Signals = imports.signals;
const St = imports.gi.St;
const Animation = imports.ui.animation;
const Batch = imports.gdm.batch;
const GdmUtil = imports.gdm.util;
const Params = imports.misc.params;
const ShellEntry = imports.ui.shellEntry;
const Tweener = imports.ui.tweener;
const UserWidget = imports.ui.userWidget;
const DEFAULT_BUTTON_WELL_ICON_SIZE = 24;
const DEFAULT_BUTTON_WELL_ANIMATION_DELAY = 1.0;
const DEFAULT_BUTTON_WELL_ANIMATION_TIME = 0.3;
const MESSAGE_FADE_OUT_ANIMATION_TIME = 0.5;
const AuthPromptMode = {
UNLOCK_ONLY: 0,
UNLOCK_OR_LOG_IN: 1
};
const BeginRequestType = {
PROVIDE_USERNAME: 0,
DONT_PROVIDE_USERNAME: 1
};
const AuthPrompt = new Lang.Class({
Name: 'AuthPrompt',
_init: function(gdmClient, mode) {
this._gdmClient = gdmClient;
this._mode = mode;
let reauthenticationOnly;
if (this._mode == AuthPromptMode.UNLOCK_ONLY)
reauthenticationOnly = true;
else if (this._mode == AuthPromptMode.UNLOCK_OR_LOG_IN)
reauthenticationOnly = false;
this._userVerifier = new GdmUtil.ShellUserVerifier(this._gdmClient, { reauthenticationOnly: reauthenticationOnly });
this._userVerifier.connect('ask-question', Lang.bind(this, this._onAskQuestion));
this._userVerifier.connect('show-message', Lang.bind(this, this._onShowMessage));
this._userVerifier.connect('verification-failed', Lang.bind(this, this._onVerificationFailed));
this._userVerifier.connect('reset', Lang.bind(this, this._onReset));
this._userVerifier.connect('smartcard-status-changed', Lang.bind(this, this._onSmartcardStatusChanged));
this._userVerifier.connect('ovirt-user-authenticated', Lang.bind(this, this._onOVirtUserAuthenticated));
this.smartcardDetected = this._userVerifier.smartcardDetected;
this.connect('next', Lang.bind(this, function() {
this.updateSensitivity(false);
this.startSpinning();
if (this._queryingService) {
this._userVerifier.answerQuery(this._queryingService, this._entry.text);
} else {
this._preemptiveAnswer = this._entry.text;
}
}));
this.actor = new St.BoxLayout({ style_class: 'login-dialog-prompt-layout',
vertical: true });
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
this.actor.connect('key-press-event',
Lang.bind(this, function(actor, event) {
if (event.get_key_symbol() == Clutter.KEY_Escape) {
this.cancel();
}
return Clutter.EVENT_PROPAGATE;
}));
this._userWell = new St.Bin({ x_fill: true,
x_align: St.Align.START });
this.actor.add(this._userWell,
{ x_align: St.Align.START,
x_fill: true,
y_fill: true,
expand: true });
this._label = new St.Label({ style_class: 'login-dialog-prompt-label' });
this.actor.add(this._label,
{ expand: true,
x_fill: false,
y_fill: true,
x_align: St.Align.START });
this._entry = new St.Entry({ style_class: 'login-dialog-prompt-entry',
can_focus: true });
ShellEntry.addContextMenu(this._entry, { isPassword: true });
this.actor.add(this._entry,
{ expand: true,
x_fill: true,
y_fill: false,
x_align: St.Align.START });
this._entry.grab_key_focus();
this._message = new St.Label({ opacity: 0,
styleClass: 'login-dialog-message' });
this._message.clutter_text.line_wrap = true;
this.actor.add(this._message, { x_fill: false, x_align: St.Align.START, y_align: St.Align.START });
this._buttonBox = new St.BoxLayout({ style_class: 'login-dialog-button-box',
vertical: false });
this.actor.add(this._buttonBox,
{ expand: true,
x_align: St.Align.MIDDLE,
y_align: St.Align.END });
this._defaultButtonWell = new St.Widget({ layout_manager: new Clutter.BinLayout() });
this._defaultButtonWellActor = null;
this._initButtons();
let spinnerIcon = global.datadir + '/theme/process-working.svg';
this._spinner = new Animation.AnimatedIcon(spinnerIcon, DEFAULT_BUTTON_WELL_ICON_SIZE);
this._spinner.actor.opacity = 0;
this._spinner.actor.show();
this._defaultButtonWell.add_child(this._spinner.actor);
},
get verificationStatus() {
return this._userVerifier.verificationStatus;
},
_onDestroy: function() {
this._userVerifier.clear();
this._userVerifier.disconnectAll();
this._userVerifier = null;
},
_initButtons: function() {
this.cancelButton = new St.Button({ style_class: 'modal-dialog-button',
button_mask: St.ButtonMask.ONE | St.ButtonMask.THREE,
reactive: true,
can_focus: true,
label: _("Cancel") });
this.cancelButton.connect('clicked',
Lang.bind(this, function() {
this.cancel();
}));
this._buttonBox.add(this.cancelButton,
{ expand: false,
x_fill: false,
y_fill: false,
x_align: St.Align.START,
y_align: St.Align.END });
this._buttonBox.add(this._defaultButtonWell,
{ expand: true,
x_fill: false,
y_fill: false,
x_align: St.Align.END,
y_align: St.Align.MIDDLE });
this.nextButton = new St.Button({ style_class: 'modal-dialog-button',
button_mask: St.ButtonMask.ONE | St.ButtonMask.THREE,
reactive: true,
can_focus: true,
label: _("Next") });
this.nextButton.connect('clicked',
Lang.bind(this, function() {
this.emit('next');
}));
this.nextButton.add_style_pseudo_class('default');
this._buttonBox.add(this.nextButton,
{ expand: false,
x_fill: false,
y_fill: false,
x_align: St.Align.END,
y_align: St.Align.END });
this._updateNextButtonSensitivity(this._entry.text.length > 0);
this._entry.clutter_text.connect('text-changed',
Lang.bind(this, function() {
if (!this._userVerifier.hasPendingMessages)
this._fadeOutMessage();
this._updateNextButtonSensitivity(this._entry.text.length > 0);
}));
this._entry.clutter_text.connect('activate', Lang.bind(this, function() {
this.emit('next');
}));
},
_onAskQuestion: function(verifier, serviceName, question, passwordChar) {
if (this._preemptiveAnswer) {
if (this._queryingService)
this._userVerifier.answerQuery(this._queryingService, this._preemptiveAnswer);
this._preemptiveAnswer = null;
return;
}
if (this._queryingService)
this.clear();
this._queryingService = serviceName;
this.setPasswordChar(passwordChar);
this.setQuestion(question);
if (passwordChar) {
if (this._userVerifier.reauthenticating)
this.nextButton.label = _("Unlock");
else
this.nextButton.label = C_("button", "Sign In");
} else {
this.nextButton.label = _("Next");
}
this.updateSensitivity(true);
this.emit('prompted');
},
_onOVirtUserAuthenticated: function() {
if (this.verificationStatus != GdmUtil.VerificationStatus.VERIFICATION_SUCCEEDED)
this.reset();
},
_onSmartcardStatusChanged: function() {
this.smartcardDetected = this._userVerifier.smartcardDetected;
// Most of the time we want to reset if the user inserts or removes
// a smartcard. Smartcard insertion "preempts" what the user was
// doing, and smartcard removal aborts the preemption.
// The exceptions are: 1) Don't reset on smartcard insertion if we're already verifying
// with a smartcard
// 2) Don't reset if we've already succeeded at verification and
// the user is getting logged in.
if (this._userVerifier.serviceIsDefault(GdmUtil.SMARTCARD_SERVICE_NAME) &&
this.verificationStatus == GdmUtil.VerificationStatus.VERIFYING &&
this.smartcardDetected)
return;
if (this.verificationStatus != GdmUtil.VerificationStatus.VERIFICATION_SUCCEEDED)
this.reset();
},
_onShowMessage: function(userVerifier, message, type) {
this.setMessage(message, type);
this.emit('prompted');
},
_onVerificationFailed: function() {
this._queryingService = null;
this.clear();
this.updateSensitivity(true);
this.setActorInDefaultButtonWell(null);
this.emit('failed');
},
_onReset: function() {
this.reset();
},
addActorToDefaultButtonWell: function(actor) {
this._defaultButtonWell.add_child(actor);
},
setActorInDefaultButtonWell: function(actor, animate) {
if (!this._defaultButtonWellActor &&
!actor)
return;
let oldActor = this._defaultButtonWellActor;
if (oldActor)
Tweener.removeTweens(oldActor);
let isSpinner;
if (actor == this._spinner.actor)
isSpinner = true;
else
isSpinner = false;
if (this._defaultButtonWellActor != actor && oldActor) {
if (!animate) {
oldActor.opacity = 0;
} else {
Tweener.addTween(oldActor,
{ opacity: 0,
time: DEFAULT_BUTTON_WELL_ANIMATION_TIME,
delay: DEFAULT_BUTTON_WELL_ANIMATION_DELAY,
transition: 'linear',
onCompleteScope: this,
onComplete: function() {
if (isSpinner) {
if (this._spinner)
this._spinner.stop();
}
}
});
}
}
if (actor) {
if (isSpinner)
this._spinner.play();
if (!animate)
actor.opacity = 255;
else
Tweener.addTween(actor,
{ opacity: 255,
time: DEFAULT_BUTTON_WELL_ANIMATION_TIME,
delay: DEFAULT_BUTTON_WELL_ANIMATION_DELAY,
transition: 'linear' });
}
this._defaultButtonWellActor = actor;
},
startSpinning: function() {
this.setActorInDefaultButtonWell(this._spinner.actor, true);
},
stopSpinning: function() {
this.setActorInDefaultButtonWell(null, false);
},
clear: function() {
this._entry.text = '';
this.stopSpinning();
},
setPasswordChar: function(passwordChar) {
this._entry.clutter_text.set_password_char(passwordChar);
this._entry.menu.isPassword = passwordChar != '';
},
setQuestion: function(question) {
this._label.set_text(question);
this._label.show();
this._entry.show();
this._entry.grab_key_focus();
},
getAnswer: function() {
let text;
if (this._preemptiveAnswer) {
text = this._preemptiveAnswer;
this._preemptiveAnswer = null;
} else {
text = this._entry.get_text();
}
return text;
},
_fadeOutMessage: function() {
if (this._message.opacity == 0)
return;
Tweener.removeTweens(this._message);
Tweener.addTween(this._message,
{ opacity: 0,
time: MESSAGE_FADE_OUT_ANIMATION_TIME,
transition: 'easeOutQuad'
});
},
setMessage: function(message, type) {
if (type == GdmUtil.MessageType.ERROR)
this._message.add_style_class_name('login-dialog-message-warning');
else
this._message.remove_style_class_name('login-dialog-message-warning');
if (type == GdmUtil.MessageType.HINT)
this._message.add_style_class_name('login-dialog-message-hint');
else
this._message.remove_style_class_name('login-dialog-message-hint');
if (message) {
Tweener.removeTweens(this._message);
this._message.text = message;
this._message.opacity = 255;
} else {
this._message.opacity = 0;
}
},
_updateNextButtonSensitivity: function(sensitive) {
this.nextButton.reactive = sensitive;
this.nextButton.can_focus = sensitive;
},
updateSensitivity: function(sensitive) {
this._updateNextButtonSensitivity(sensitive);
this._entry.reactive = sensitive;
this._entry.clutter_text.editable = sensitive;
},
hide: function() {
this.setActorInDefaultButtonWell(null, true);
this.actor.hide();
this._message.opacity = 0;
this.setUser(null);
this.updateSensitivity(true);
this._entry.set_text('');
},
setUser: function(user) {
if (user) {
let userWidget = new UserWidget.UserWidget(user);
this._userWell.set_child(userWidget.actor);
} else {
this._userWell.set_child(null);
}
},
reset: function() {
this._queryingService = null;
this.clear();
this._message.opacity = 0;
this.setUser(null);
this.stopSpinning();
let beginRequestType;
if (this._mode == AuthPromptMode.UNLOCK_ONLY) {
// The user is constant at the unlock screen, so it will immediately
// respond to the request with the username
beginRequestType = BeginRequestType.PROVIDE_USERNAME;
} else if (this._userVerifier.serviceIsForeground(GdmUtil.OVIRT_SERVICE_NAME) ||
(this.smartcardDetected &&
this._userVerifier.serviceIsForeground(GdmUtil.SMARTCARD_SERVICE_NAME))) {
// We don't need to know the username if the user preempted the login screen
// with a smartcard or with preauthenticated oVirt credentials
beginRequestType = BeginRequestType.DONT_PROVIDE_USERNAME;
} else {
// In all other cases, we should get the username up front.
beginRequestType = BeginRequestType.PROVIDE_USERNAME;
}
this.emit('reset', beginRequestType);
},
addCharacter: function(unichar) {
if (!this._entry.visible)
return;
this._entry.grab_key_focus();
this._entry.clutter_text.insert_unichar(unichar);
},
begin: function(userName) {
this.updateSensitivity(false);
this._userVerifier.begin(userName);
},
finish: function(onComplete) {
if (!this._userVerifier.hasPendingMessages) {
onComplete();
return;
}
let signalId = this._userVerifier.connect('no-more-messages',
Lang.bind(this, function() {
this._userVerifier.disconnect(signalId);
onComplete();
}));
},
cancel: function() {
this.reset();
}
});
Signals.addSignalMethods(AuthPrompt.prototype);