From 7b8bebac66b96acdbecef682a31ad98009c76508 Mon Sep 17 00:00:00 2001
From: Ji-Rath <garethaguilar@gmail.com>
Date: Fri, 17 Dec 2021 15:45:18 -0600
Subject: [PATCH] Add AutoLoginUserCallbackProxy

Implement AutoLogin function, can be used to login automatically using the EOS SDK Dev Auth Tool
---
 .../Classes/AutoLoginUserCallbackProxy.h      | 55 +++++++++++++++++++
 .../Private/AutoLoginUserCallbackProxy.cpp    | 55 +++++++++++++++++++
 2 files changed, 110 insertions(+)
 create mode 100644 AdvancedSessions/Source/AdvancedSessions/Classes/AutoLoginUserCallbackProxy.h
 create mode 100644 AdvancedSessions/Source/AdvancedSessions/Private/AutoLoginUserCallbackProxy.cpp

diff --git a/AdvancedSessions/Source/AdvancedSessions/Classes/AutoLoginUserCallbackProxy.h b/AdvancedSessions/Source/AdvancedSessions/Classes/AutoLoginUserCallbackProxy.h
new file mode 100644
index 0000000..dc91cff
--- /dev/null
+++ b/AdvancedSessions/Source/AdvancedSessions/Classes/AutoLoginUserCallbackProxy.h
@@ -0,0 +1,55 @@
+// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
+#pragma once
+
+#include "CoreMinimal.h"
+#include "BlueprintDataDefinitions.h"
+#include "Interfaces/OnlineIdentityInterface.h"
+#include "Engine/LocalPlayer.h"
+#include "AutoLoginUserCallbackProxy.generated.h"
+
+UCLASS(MinimalAPI)
+class UAutoLoginUserCallbackProxy : public UOnlineBlueprintCallProxyBase
+{
+	GENERATED_UCLASS_BODY()
+
+	// Called when there is a successful destroy
+	UPROPERTY(BlueprintAssignable)
+	FEmptyOnlineDelegate OnSuccess;
+
+	// Called when there is an unsuccessful destroy
+	UPROPERTY(BlueprintAssignable)
+	FEmptyOnlineDelegate OnFailure;
+
+	/**
+	 * Logs the player into the online service using parameters passed on the
+	 * command line. Expects -AUTH_LOGIN=<UserName> -AUTH_PASSWORD=<password>. If either
+	 * are missing, the function returns false and doesn't start the login
+	 * process
+	 *
+	 * @param LocalUserNum the controller number of the associated user
+	 *
+	 */
+	UFUNCTION(BlueprintCallable, meta=(BlueprintInternalUseOnly = "true", WorldContext="WorldContextObject"), Category = "Online|AdvancedIdentity")
+	static UAutoLoginUserCallbackProxy* AutoLoginUser(UObject* WorldContextObject, int32 LocalUserNum);
+
+	// UOnlineBlueprintCallProxyBase interface
+	virtual void Activate() override;
+	// End of UOnlineBlueprintCallProxyBase interface
+
+private:
+	// Internal callback when the operation completes, calls out to the public success/failure callbacks
+	void OnCompleted(int32 LocalUserNum, bool bWasSuccessful, const FUniqueNetId& UserId, const FString& ErrorVal);
+
+private:
+	// The controller number of the associated user
+	int32 LocalUserNumber;
+
+	// The delegate executed by the online subsystem
+	FOnLoginCompleteDelegate Delegate;
+
+	// Handle to the registered OnDestroySessionComplete delegate
+	FDelegateHandle DelegateHandle;
+
+	// The world context object in which this call is taking place
+	UObject* WorldContextObject;
+};
diff --git a/AdvancedSessions/Source/AdvancedSessions/Private/AutoLoginUserCallbackProxy.cpp b/AdvancedSessions/Source/AdvancedSessions/Private/AutoLoginUserCallbackProxy.cpp
new file mode 100644
index 0000000..de3225d
--- /dev/null
+++ b/AdvancedSessions/Source/AdvancedSessions/Private/AutoLoginUserCallbackProxy.cpp
@@ -0,0 +1,55 @@
+// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
+
+#include "AutoLoginUserCallbackProxy.h"
+
+
+//////////////////////////////////////////////////////////////////////////
+// ULoginUserCallbackProxy
+
+UAutoLoginUserCallbackProxy::UAutoLoginUserCallbackProxy(const FObjectInitializer& ObjectInitializer)
+	: Super(ObjectInitializer)
+	, Delegate(FOnLoginCompleteDelegate::CreateUObject(this, &ThisClass::OnCompleted))
+{
+}
+
+UAutoLoginUserCallbackProxy* UAutoLoginUserCallbackProxy::AutoLoginUser(UObject* WorldContextObject, int32 LocalUserNum)
+{
+	UAutoLoginUserCallbackProxy* Proxy = NewObject<UAutoLoginUserCallbackProxy>();
+	Proxy->LocalUserNumber = LocalUserNum;
+	Proxy->WorldContextObject = WorldContextObject;
+	return Proxy;
+}
+
+void UAutoLoginUserCallbackProxy::Activate()
+{
+	auto Identity = Online::GetIdentityInterface();
+
+	if (Identity.IsValid())
+	{
+		DelegateHandle = Identity->AddOnLoginCompleteDelegate_Handle(LocalUserNumber, Delegate);
+		Identity->AutoLogin(LocalUserNumber);
+		return;
+	}
+
+	// Fail immediately
+	OnFailure.Broadcast();
+}
+
+void UAutoLoginUserCallbackProxy::OnCompleted(int32 LocalUserNum, bool bWasSuccessful, const FUniqueNetId& UserId, const FString& ErrorVal)
+{
+	auto Identity = Online::GetIdentityInterface();
+
+	if (Identity.IsValid())
+	{
+		Identity->ClearOnLoginCompleteDelegate_Handle(LocalUserNum, DelegateHandle);
+	}
+
+	if (bWasSuccessful)
+	{
+		OnSuccess.Broadcast();
+	}
+	else
+	{
+		OnFailure.Broadcast();
+	}
+}