Prevent logging in when maintenance is in progress

src/launchercore.cpp

@@ -353,6 +353,12 @@ LauncherCore::LauncherCore() : settings(QSettings::IniFormat, QSettings::UserSco
     assetUpdater = new AssetUpdater(*this);
 
     readInitialInformation();
+
+    // check gate status before login
+    squareLauncher->gateOpen();
+
+    // TODO: we really should call this "heavy" signal
+    connect(squareLauncher, &SquareLauncher::gateStatusRecieved, this, &LauncherCore::settingsChanged);
 }
 
 ProfileSettings LauncherCore::getProfile(int index) const {

src/launcherwindow.cpp

@@ -86,7 +86,7 @@ LauncherWindow::LauncherWindow(LauncherCore& core, QWidget* parent) : QMainWindo
     otpEdit = new QLineEdit();
     layout->addRow("One-Time Password", otpEdit);
 
-    auto loginButton = new QPushButton("Login");
+    loginButton = new QPushButton("Login");
     layout->addRow(loginButton);
 
     registerButton = new QPushButton("Register");
@@ -185,6 +185,15 @@ void LauncherWindow::reloadControls() {
         });
     }
 
+    const bool isLockedOut = !currentProfile().isSapphire && !core.squareLauncher->isGateOpen;
+
+    if(!isLockedOut) {
+        loginButton->setText("Login");
+    } else {
+        loginButton->setText("Login (Maintenance is in progress)");
+    }
+
+    loginButton->setEnabled(!isLockedOut);
     registerButton->setEnabled(currentProfile().isSapphire);
     otpEdit->setEnabled(!currentProfile().isSapphire);
 

src/launcherwindow.h

@@ -27,5 +27,5 @@ private:
     QLineEdit* usernameEdit, *passwordEdit;
     QLineEdit* otpEdit;
     QCheckBox* rememberUsernameBox, *rememberPasswordBox;
-    QPushButton* registerButton;
+    QPushButton* loginButton, *registerButton;
 };

src/squarelauncher.cpp

@@ -5,6 +5,8 @@
 #include <QNetworkReply>
 #include <QRegularExpressionMatch>
 #include <QMessageBox>
+#include <QJsonDocument>
+#include <QJsonObject>
 
 #include "launchercore.h"
 
@@ -157,3 +159,29 @@ void SquareLauncher::readExpansionVersions(const LoginInformation& info, int max
     for(int i = 0; i < max; i++)
         expansionVersions.push_back(window.readVersion(QString("%1/game/sqpack/ex%2/ex%2.ver").arg(info.settings->gamePath, QString::number(i + 1))));
 }
+
+void SquareLauncher::gateOpen() {
+    QUrlQuery query;
+    query.addQueryItem("", QString::number(QDateTime::currentMSecsSinceEpoch()));
+
+    QUrl url;
+    url.setUrl("https://frontier.ffxiv.com/worldStatus/gate_status.json");
+    url.setQuery(query);
+
+    QNetworkRequest request;
+    request.setUrl(url);
+    window.buildRequest(request);
+
+    auto reply = window.mgr->get(request);
+    connect(reply, &QNetworkReply::finished, [this, reply] {
+        QJsonDocument document = QJsonDocument::fromJson(reply->readAll());
+
+        if(document.isEmpty() || document.object()["status"].toInt() == 0) {
+            gateStatusRecieved(false);
+            isGateOpen = false;
+        } else {
+            gateStatusRecieved(true);
+            isGateOpen = true;
+        }
+    });
+}

src/squarelauncher.h

@@ -3,15 +3,23 @@
 #include "launchercore.h"
 
 class SquareLauncher : public QObject {
+    Q_OBJECT
 public:
     SquareLauncher(LauncherCore& window);
 
+    void gateOpen();
+
     void getStored(const LoginInformation& info);
 
     void login(const LoginInformation& info, QUrl referer);
 
     void registerSession(const LoginInformation& info);
 
+    bool isGateOpen = false;
+
+signals:
+    void gateStatusRecieved(bool gateOpen);
+
 private:
     QString getBootHash(const LoginInformation& info);
     void readExpansionVersions(const LoginInformation& info, int max);