[gnome-shell/wip/rstrode/rhel-8.0.0: 15/50] gdmUtil: enable support for GDM's ChoiceList PAM extension



commit b474ea0b7c66946210bbe394012c16822b989873
Author: Ray Strode <rstrode redhat com>
Date:   Mon Jul 17 16:48:03 2017 -0400

    gdmUtil: enable support for GDM's ChoiceList PAM extension
    
    This commit hooks up support for GDM's ChoiceList PAM extension.

 js/gdm/authPrompt.js  | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++-
 js/gdm/loginDialog.js |  5 ++++
 js/gdm/util.js        | 28 +++++++++++++++++++
 js/ui/unlockDialog.js |  9 ++++++-
 4 files changed, 114 insertions(+), 2 deletions(-)
---
diff --git a/js/gdm/authPrompt.js b/js/gdm/authPrompt.js
index e44281117..27a55246a 100644
--- a/js/gdm/authPrompt.js
+++ b/js/gdm/authPrompt.js
@@ -9,6 +9,7 @@ const Signals = imports.signals;
 const St = imports.gi.St;
 
 const Animation = imports.ui.animation;
+const AuthList = imports.gdm.authList;
 const Batch = imports.gdm.batch;
 const GdmUtil = imports.gdm.util;
 const Meta = imports.gi.Meta;
@@ -61,6 +62,7 @@ var AuthPrompt = new Lang.Class({
 
         this._userVerifier.connect('ask-question', this._onAskQuestion.bind(this));
         this._userVerifier.connect('show-message', this._onShowMessage.bind(this));
+        this._userVerifier.connect('show-choice-list', this._onShowChoiceList.bind(this));
         this._userVerifier.connect('verification-failed', this._onVerificationFailed.bind(this));
         this._userVerifier.connect('verification-complete', this._onVerificationComplete.bind(this));
         this._userVerifier.connect('reset', this._onReset.bind(this));
@@ -123,6 +125,28 @@ var AuthPrompt = new Lang.Class({
 
         this.actor.add(this._timedLoginIndicator);
 
+        this._authList = new AuthList.AuthList();
+        this._authList.connect('activate', (list, key) => {
+            this._authList.actor.reactive = false;
+            Tweener.addTween(this._authList.actor,
+                             { opacity: 0,
+                               time: MESSAGE_FADE_OUT_ANIMATION_TIME,
+                               transition: 'easeOutQuad',
+                               onComplete: () => {
+                                   this._authList.clear();
+                                   this._authList.actor.hide();
+                                   this._userVerifier.selectChoice(this._queryingService, key);
+
+                               }
+                             });
+        });
+        this._authList.actor.hide();
+        this.actor.add(this._authList.actor,
+                       { expand: true,
+                         x_fill: true,
+                         y_fill: false,
+                         x_align: St.Align.START });
+
         this._message = new St.Label({ opacity: 0,
                                        styleClass: 'login-dialog-message' });
         this._message.clutter_text.line_wrap = true;
@@ -266,6 +290,21 @@ var AuthPrompt = new Lang.Class({
         this.emit('prompted');
     },
 
+    _onShowChoiceList(userVerifier, serviceName, promptMessage, choiceList) {
+        if (this._queryingService)
+            this.clear();
+
+        this._queryingService = serviceName;
+
+        if (this._preemptiveAnswer)
+            this._preemptiveAnswer = null;
+
+        this.nextButton.label = _("Next");
+        this.setChoiceList(promptMessage, choiceList);
+        this.updateSensitivity(true);
+        this.emit('prompted');
+    },
+
     _onOVirtUserAuthenticated() {
         if (this.verificationStatus != AuthPromptStatus.VERIFICATION_SUCCEEDED)
             this.reset();
@@ -394,6 +433,8 @@ var AuthPrompt = new Lang.Class({
     clear() {
         this._entry.text = '';
         this.stopSpinning();
+        this._authList.clear();
+        this._authList.actor.hide();
     },
 
     setPasswordChar(passwordChar) {
@@ -409,12 +450,42 @@ var AuthPrompt = new Lang.Class({
 
         this._label.set_text(question);
 
+        this._authList.actor.hide();
         this._label.show();
         this._entry.show();
 
         this._entry.grab_key_focus();
     },
 
+    _fadeInChoiceList() {
+       this._authList.actor.opacity = 0;
+       this._authList.actor.show();
+       this._authList.actor.reactive = false;
+       Tweener.addTween(this._authList.actor,
+                        { opacity: 255,
+                          time: MESSAGE_FADE_OUT_ANIMATION_TIME,
+                          transition: 'easeOutQuad',
+                          onComplete: () => {
+                              this._authList.actor.reactive = true;
+                          }
+                        });
+    },
+
+    setChoiceList(promptMessage, choiceList) {
+        this._authList.clear();
+        this._authList.label.text = promptMessage;
+        for (let key in choiceList) {
+            let text = choiceList[key];
+            this._authList.addItem(key, text);
+        }
+
+        this._label.hide();
+        this._entry.hide();
+        if (this._message.text == "")
+            this._message.hide();
+        this._fadeInChoiceList();
+    },
+
     getAnswer() {
         let text;
 
@@ -450,6 +521,7 @@ var AuthPrompt = new Lang.Class({
         else
             this._message.remove_style_class_name('login-dialog-message-hint');
 
+        this._message.show();
         if (message) {
             Tweener.removeTweens(this._message);
             this._message.text = message;
@@ -465,7 +537,7 @@ var AuthPrompt = new Lang.Class({
     },
 
     updateSensitivity(sensitive) {
-        this._updateNextButtonSensitivity(sensitive && (this._entry.text.length > 0 || 
this.verificationStatus == AuthPromptStatus.VERIFYING));
+        this._updateNextButtonSensitivity(sensitive && !this._authList.actor.visible && 
(this._entry.text.length > 0 || this.verificationStatus == AuthPromptStatus.VERIFYING));
         this._entry.reactive = sensitive;
         this._entry.clutter_text.editable = sensitive;
     },
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 65d9edf1a..912c0e0ca 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -418,6 +418,11 @@ var LoginDialog = new Lang.Class({
         this._userManager = AccountsService.UserManager.get_default()
         this._gdmClient = new Gdm.Client();
 
+        try {
+            this._gdmClient.set_enabled_extensions([Gdm.UserVerifierChoiceList.interface_info().name]);
+        } catch(e) {
+        }
+
         this._settings = new Gio.Settings({ schema_id: GdmUtil.LOGIN_SCREEN_SCHEMA });
 
         this._settings.connect('changed::' + GdmUtil.BANNER_MESSAGE_KEY,
diff --git a/js/gdm/util.js b/js/gdm/util.js
index f5f9d5e5d..04a0cb9bf 100644
--- a/js/gdm/util.js
+++ b/js/gdm/util.js
@@ -200,6 +200,10 @@ var ShellUserVerifier = new Lang.Class({
         if (this._userVerifier) {
             this._userVerifier.run_dispose();
             this._userVerifier = null;
+            if (this._userVerifierChoiceList) {
+                this._userVerifierChoiceList.run_dispose();
+                this._userVerifierChoiceList = null;
+            }
         }
     },
 
@@ -227,6 +231,10 @@ var ShellUserVerifier = new Lang.Class({
         this._oVirtCredentialsManager = null;
     },
 
+    selectChoice(serviceName, key) {
+        this._userVerifierChoiceList.call_select_choice(serviceName, key, this._cancellable, null);
+    },
+
     answerQuery(serviceName, answer) {
         if (!this.hasPendingMessages) {
             this._userVerifier.call_answer_query(serviceName, answer, this._cancellable, null);
@@ -367,6 +375,11 @@ var ShellUserVerifier = new Lang.Class({
             return;
         }
 
+        if (client.get_user_verifier_choice_list)
+            this._userVerifierChoiceList = client.get_user_verifier_choice_list();
+        else
+            this._userVerifierChoiceList = null;
+
         this.reauthenticating = true;
         this._connectSignals();
         this._beginVerification();
@@ -384,6 +397,11 @@ var ShellUserVerifier = new Lang.Class({
             return;
         }
 
+        if (client.get_user_verifier_choice_list)
+            this._userVerifierChoiceList = client.get_user_verifier_choice_list();
+        else
+            this._userVerifierChoiceList = null;
+
         this._connectSignals();
         this._beginVerification();
         this._hold.release();
@@ -397,6 +415,9 @@ var ShellUserVerifier = new Lang.Class({
         this._userVerifier.connect('conversation-stopped', this._onConversationStopped.bind(this));
         this._userVerifier.connect('reset', this._onReset.bind(this));
         this._userVerifier.connect('verification-complete', this._onVerificationComplete.bind(this));
+
+        if (this._userVerifierChoiceList)
+            this._userVerifierChoiceList.connect('choice-query', this._onChoiceListQuery.bind(this));
     },
 
     _getForegroundService() {
@@ -473,6 +494,13 @@ var ShellUserVerifier = new Lang.Class({
             this._startService(FINGERPRINT_SERVICE_NAME);
     },
 
+    _onChoiceListQuery(client, serviceName, promptMessage, list) {
+        if (!this.serviceIsForeground(serviceName))
+            return;
+
+        this.emit('show-choice-list', serviceName, promptMessage, list.deep_unpack());
+    },
+
     _onInfo(client, serviceName, info) {
         if (this.serviceIsForeground(serviceName)) {
             this._queueMessage(info, MessageType.INFO);
diff --git a/js/ui/unlockDialog.js b/js/ui/unlockDialog.js
index 1adaf417e..b5272be20 100644
--- a/js/ui/unlockDialog.js
+++ b/js/ui/unlockDialog.js
@@ -51,7 +51,14 @@ var UnlockDialog = new Lang.Class({
                                              y_expand: true });
         this.actor.add_child(this._promptBox);
 
-        this._authPrompt = new AuthPrompt.AuthPrompt(new Gdm.Client(), 
AuthPrompt.AuthPromptMode.UNLOCK_ONLY);
+        this._gdmClient = new Gdm.Client();
+
+        try {
+            this._gdmClient.set_enabled_extensions([Gdm.UserVerifierChoiceList.interface_info().name]);
+        } catch(e) {
+        }
+
+        this._authPrompt = new AuthPrompt.AuthPrompt(this._gdmClient, AuthPrompt.AuthPromptMode.UNLOCK_ONLY);
         this._authPrompt.connect('failed', this._fail.bind(this));
         this._authPrompt.connect('cancelled', this._fail.bind(this));
         this._authPrompt.connect('reset', this._onReset.bind(this));


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