NOISSUE proper fix for missing profile + demo mode

launcher/LaunchController.cpp

@@ -16,6 +16,7 @@
 #include <QHostInfo>
 #include <QList>
 #include <QHostAddress>
+#include <QPushButton>
 
 #include "BuildConfig.h"
 #include "JavaCommon.h"
@@ -145,21 +146,8 @@ void LaunchController::login() {
                     m_session->MakeOffline(usedname);
                     // offline flavored game from here :3
                 }
-                if(m_accountToUse->ownsMinecraft() && !m_accountToUse->hasProfile()) {
+                if(m_accountToUse->ownsMinecraft()) {
-                    auto entitlement = m_accountToUse->accountData()->minecraftEntitlement;
+                    if(!m_accountToUse->hasProfile()) {
-                    QString errorString;
-                    if(!entitlement.canPlayMinecraft) {
-                        errorString = tr("The account does not own Minecraft. You need to purchase the game first to play it.");
-                        QMessageBox::warning(
-                            nullptr,
-                            tr("Missing Minecraft profile"),
-                            errorString,
-                            QMessageBox::StandardButton::Ok,
-                            QMessageBox::StandardButton::Ok
-                        );
-                        emitFailed(errorString);
-                        return;
-                    }
                         // Now handle setting up a profile name here...
                         ProfileSetupDialog dialog(m_accountToUse, m_parentWidget);
                         if (dialog.exec() == QDialog::Accepted)
@@ -173,8 +161,29 @@ void LaunchController::login() {
                             return;
                         }
                     }
-                else {
+                    // we own Minecraft, there is a profile, it's all ready to go!
                     launchInstance();
+                    return;
+                }
+                else {
+                    // play demo ?
+                    QMessageBox box(m_parentWidget);
+                    box.setWindowTitle(tr("Play demo?"));
+                    box.setText(tr("This account does not own Minecraft.\nYou need to purchase the game first to play it.\n\nDo you want to play the demo?"));
+                    box.setIcon(QMessageBox::Warning);
+                    auto demoButton = box.addButton(tr("Play Demo"), QMessageBox::ButtonRole::YesRole);
+                    auto cancelButton = box.addButton(tr("Cancel"), QMessageBox::ButtonRole::NoRole);
+                    box.setDefaultButton(cancelButton);
+
+                    box.exec();
+                    if(box.clickedButton() == demoButton) {
+                        // play demo here
+                        m_session->MakeDemo();
+                        launchInstance();
+                    }
+                    else {
+                        emitFailed(tr("Launch cancelled - account does not own Minecraft."));
+                    }
                 }
                 return;
             }

launcher/minecraft/MinecraftInstance.cpp

@@ -431,8 +431,7 @@ QStringList MinecraftInstance::processMinecraftArgs(
 
     QMap<QString, QString> token_mapping;
     // yggdrasil!
-    if(session)
+    if(session) {
-    {
         // token_mapping["auth_username"] = session->username;
         token_mapping["auth_session"] = session->session;
         token_mapping["auth_access_token"] = session->access_token;
@@ -440,6 +439,9 @@ QStringList MinecraftInstance::processMinecraftArgs(
         token_mapping["auth_uuid"] = session->uuid;
         token_mapping["user_properties"] = session->serializeUserProperties();
         token_mapping["user_type"] = session->user_type;
+        if(session->demo) {
+            args_pattern += " --demo";
+        }
     }
 
     // blatant self-promotion.
@@ -872,7 +874,9 @@ shared_qobject_ptr<LaunchTask> MinecraftInstance::createLaunchTask(AuthSessionPt
     // if we aren't in offline mode,.
     if(session->status != AuthSession::PlayableOffline)
     {
+        if(!session->demo) {
             process->appendStep(new ClaimAccount(pptr, session));
+        }
         process->appendStep(new Update(pptr, Net::Mode::Online));
     }
     else

launcher/minecraft/auth/AuthSession.cpp

@@ -30,3 +30,8 @@ bool AuthSession::MakeOffline(QString offline_playername)
     status = PlayableOffline;
     return true;
 }
+
+void AuthSession::MakeDemo() {
+    player_name = "Player";
+    demo = true;
+}

launcher/minecraft/auth/AuthSession.h

@@ -11,6 +11,7 @@ class QNetworkAccessManager;
 struct AuthSession
 {
     bool MakeOffline(QString offline_playername);
+    void MakeDemo();
 
     QString serializeUserProperties();
 
@@ -43,6 +44,9 @@ struct AuthSession
     bool auth_server_online = false;
     // Did the user request online mode?
     bool wants_online = true;
+
+    //Is this a demo session?
+    bool demo = false;
 };
 
 typedef std::shared_ptr<AuthSession> AuthSessionPtr;

launcher/minecraft/auth/Parsers.cpp

@@ -227,7 +227,7 @@ bool parseMinecraftEntitlements(QByteArray & data, MinecraftEntitlement &output)
 
     auto obj = doc.object();
     output.canPlayMinecraft = false;
-    output.ownsMinecraft = true;
+    output.ownsMinecraft = false;
 
     auto itemsArray = obj.value("items").toArray();
     for(auto item: itemsArray) {

launcher/minecraft/launch/ClaimAccount.cpp

@@ -6,7 +6,7 @@
 
 ClaimAccount::ClaimAccount(LaunchTask* parent, AuthSessionPtr session): LaunchStep(parent)
 {
-    if(session->status == AuthSession::Status::PlayableOnline)
+    if(session->status == AuthSession::Status::PlayableOnline && !session->demo)
     {
         auto accounts = APPLICATION->accounts();
         m_account = accounts->getAccountByProfileName(session->player_name);