Mk2

uh stuff. i'm putting it in the readme.

Source/MediocreMapper/FileDownloader.cpp

@@ -0,0 +1,89 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+#include "FileDownloader.h"
+#include "BeatSaberEditor.h"
+#include "PlatformFilemanager.h"
+#include "GenericPlatform/GenericPlatformFile.h"
+#include "Paths.h"
+UFileDownloader::UFileDownloader():
+	FileUrl(TEXT(""))
+	, FileSavePath(TEXT(""))
+{
+}
+
+UFileDownloader::~UFileDownloader()
+{
+}
+
+UFileDownloader* UFileDownloader::MakeDownloader()
+{
+	UFileDownloader* Downloader = NewObject<UFileDownloader>();
+	return Downloader;
+}
+
+UFileDownloader* UFileDownloader::DownloadFile(const FString& Url, FString SavePath)
+{
+	FileUrl = Url;
+	FileSavePath = SavePath;
+
+	TSharedRef< IHttpRequest > HttpRequest = FHttpModule::Get().CreateRequest();
+	HttpRequest->SetVerb("GET");
+	HttpRequest->SetURL(Url);
+	HttpRequest->OnProcessRequestComplete().BindUObject(this, &UFileDownloader::OnReady);
+	HttpRequest->OnRequestProgress().BindUObject(this, &UFileDownloader::OnProgress_Internal);
+
+	// Execute the request
+	HttpRequest->ProcessRequest();
+	AddToRoot();
+
+	return this;
+}
+
+void UFileDownloader::OnReady(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful)
+{
+	RemoveFromRoot();
+	Request->OnProcessRequestComplete().Unbind();
+
+	if (Response.IsValid() && EHttpResponseCodes::IsOk(Response->GetResponseCode()))
+	{
+		// SAVE FILE
+		IPlatformFile & PlatformFile = FPlatformFileManager::Get().GetPlatformFile();
+
+		// create save directory if not existent
+		FString Path, Filename, Extension;
+		FPaths::Split(FileSavePath, Path, Filename, Extension);
+		if (!PlatformFile.DirectoryExists(*Path))
+		{
+			if(!PlatformFile.CreateDirectoryTree(*Path))
+			{
+				OnResult.Broadcast(EDownloadResult::DirectoryCreationFailed);
+				return;
+			}
+		}
+
+		// open/create the file
+		IFileHandle* FileHandle = PlatformFile.OpenWrite(*FileSavePath);
+		if (FileHandle)
+		{
+			// write the file
+			FileHandle->Write(Response->GetContent().GetData(), Response->GetContentLength());
+			// Close the file
+			delete FileHandle;
+
+			OnResult.Broadcast(EDownloadResult::Success);
+		}
+		else
+		{
+			OnResult.Broadcast(EDownloadResult::SaveFailed);
+		}
+	}
+	else
+	{
+		OnResult.Broadcast(EDownloadResult::DownloadFailed);
+	}
+}
+
+void UFileDownloader::OnProgress_Internal(FHttpRequestPtr Request, int32 BytesSent, int32 BytesReceived)
+{
+	int32 FullSize = Request->GetContentLength();
+	OnProgress.Broadcast(BytesSent, BytesReceived, FullSize);
+}