GH-3392 Switch MS account login to use device flow instead

Device flow involves the user manually opening a web page and putting in
a code. We no longer need to interact with the browser.

launcher/dialogs/MSALoginDialog.cpp

@@ -41,6 +41,9 @@ int MSALoginDialog::exec() {
     connect(m_loginTask.get(), &Task::succeeded, this, &MSALoginDialog::onTaskSucceeded);
     connect(m_loginTask.get(), &Task::status, this, &MSALoginDialog::onTaskStatus);
     connect(m_loginTask.get(), &Task::progress, this, &MSALoginDialog::onTaskProgress);
+    connect(m_loginTask.get(), &AccountTask::showVerificationUriAndCode, this, &MSALoginDialog::showVerificationUriAndCode);
+    connect(m_loginTask.get(), &AccountTask::hideVerificationUriAndCode, this, &MSALoginDialog::hideVerificationUriAndCode);
+    connect(&m_externalLoginTimer, &QTimer::timeout, this, &MSALoginDialog::externalLoginTick);
     m_loginTask->start();
 
     return QDialog::exec();
@@ -52,6 +55,37 @@ MSALoginDialog::~MSALoginDialog()
     delete ui;
 }
 
+void MSALoginDialog::externalLoginTick() {
+    m_externalLoginElapsed++;
+    ui->progressBar->setValue(m_externalLoginElapsed);
+    ui->progressBar->repaint();
+
+    if(m_externalLoginElapsed >= m_externalLoginTimeout) {
+        m_externalLoginTimer.stop();
+    }
+}
+
+
+void MSALoginDialog::showVerificationUriAndCode(const QUrl& uri, const QString& code, int expiresIn) {
+    m_externalLoginElapsed = 0;
+    m_externalLoginTimeout = expiresIn;
+
+    m_externalLoginTimer.setInterval(1000);
+    m_externalLoginTimer.setSingleShot(false);
+    m_externalLoginTimer.start();
+
+    ui->progressBar->setMaximum(expiresIn);
+    ui->progressBar->setValue(m_externalLoginElapsed);
+
+    QString urlString = uri.toString();
+    QString linkString = QString("<a href=\"%1\">%2</a>").arg(urlString, urlString);
+    ui->label->setText(tr("<p>Please open up %1 in a browser and put in the code <b>%2</b> to proceed with login.</p>").arg(linkString, code));
+}
+
+void MSALoginDialog::hideVerificationUriAndCode() {
+    m_externalLoginTimer.stop();
+}
+
 void MSALoginDialog::setUserInputsEnabled(bool enable)
 {
     ui->buttonBox->setEnabled(enable);

launcher/dialogs/MSALoginDialog.h

@@ -17,6 +17,7 @@
 
 #include <QtWidgets/QDialog>
 #include <QtCore/QEventLoop>
+#include <QTimer>
 
 #include "minecraft/auth/MinecraftAccount.h"
 
@@ -46,10 +47,17 @@ slots:
     void onTaskSucceeded();
     void onTaskStatus(const QString &status);
     void onTaskProgress(qint64 current, qint64 total);
+    void showVerificationUriAndCode(const QUrl &uri, const QString &code, int expiresIn);
+    void hideVerificationUriAndCode();
+
+    void externalLoginTick();
 
 private:
     Ui::MSALoginDialog *ui;
     MinecraftAccountPtr m_account;
-    std::shared_ptr<Task> m_loginTask;
+    std::shared_ptr<AccountTask> m_loginTask;
+    QTimer m_externalLoginTimer;
+    int m_externalLoginElapsed = 0;
+    int m_externalLoginTimeout = 0;
 };
 

launcher/dialogs/MSALoginDialog.ui

@@ -30,6 +30,9 @@ aaaaa</string>
      <property name="textFormat">
       <enum>Qt::RichText</enum>
      </property>
+     <property name="openExternalLinks">
+      <bool>true</bool>
+     </property>
      <property name="textInteractionFlags">
       <set>Qt::LinksAccessibleByKeyboard|Qt::LinksAccessibleByMouse|Qt::TextBrowserInteraction|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
      </property>