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52d01bd36f
#rb PJ.Kack #rnx #preflight 62276138671c913c0515c3b4 - To make it easier to extend the number of parameters when initializing the virtualization system, the function has been changed to accept a single struct, FInitParams, which will contains all potential parameters. - Calling the version of UE::Virtualization::Initialize without any parameters will fallback to using the default values. - The virtualization manager now passes the provided project name onto each backend that it creates. - The source control backend now stored the provided project name and uses that when creating the submit description for new payloads rather than polling FApp for the current project name. -- This is required for the stand alone virtualization application which will not have a specific project set. [CL 19303638 by paul chipchase in ue5-main branch]
96 lines
3.7 KiB
C++
96 lines
3.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "IVirtualizationBackend.h"
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namespace UE::Utility { struct FRequestPool; }
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namespace UE::Utility { struct FAccessToken; }
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namespace UE::Virtualization
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{
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/**
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* NOTE: Although this backend can be used to store data directly in Horde storage, it is much better to use
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* UE::Virtualization::FDDCBackend with a Zen enabled DDC instead. Due to this reason FHttpBackend will most
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* likely be deprecated in UE 5.1 and is only provided for experimentation purposes.
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*
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* This backend allows data to be stored in and retrieved from the Horde storage service.
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*
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* Ini file setup:
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* 'Name'=(Type=HordeStorage, Host="", Namespace="", ChunkSize=, OAuthProvider="", OAuthClientId="", OAuthSecret="")
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* Host: The URL of the service, use http://localhost if hosted locally.
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* Namespace: Horde storage is divided into a number of namespaces allowing projects to keep their data separate
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* while using the same service. This value controls which name space will be used.
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* ChunkSize: Each payload can be divided into a number of chunks when being uploaded to Horde to improve upload
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* performance, this value sets the max size (in bytes) of each chunk. To disable and attempt to upload
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* each payload as a single data blob, set this to -1.
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* OAuthProvider: Url of the OAuth authorization server.
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* OAuthClientId: Public identifier for use with the OAuth authorization server.
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* OAuthSecret: Password for the OAuthClientId
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* (Note that the OAuth entries are not required if hosting locally)
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*/
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class FHttpBackend final : public IVirtualizationBackend
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{
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public:
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explicit FHttpBackend(FStringView ProjectName, FStringView ConfigName, FStringView DebugName);
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virtual ~FHttpBackend() = default;
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private:
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/* IVirtualizationBackend implementation */
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virtual bool Initialize(const FString& ConfigEntry) override;
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virtual EPushResult PushData(const FIoHash& Id, const FCompressedBuffer& CompressedPayload, const FString& PackageContext) override;
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virtual FCompressedBuffer PullData(const FIoHash& Id) override;
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virtual bool DoesPayloadExist(const FIoHash& Id) override;
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private:
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bool IsUsingLocalHost() const;
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bool IsServiceReady() const;
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bool AcquireAccessToken();
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/**
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* Request the status of the service that we are connected to and make sure that it supports the
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* feature set we need and meets our minimum version requirements.
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*/
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bool ValidateServiceVersion();
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bool ShouldRetryOnError(int64 ResponseCode);
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bool PostChunk(const TArrayView<const uint8>& ChunkData, const FIoHash& PayloadId, FString& OutHashAsString);
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bool PullChunk(const FString& Hash, const FIoHash& PayloadId, uint8* DataPtr, int64 BufferSize);
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bool DoesChunkExist(const FString& Hash);
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/** Address of the service*/
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FString HostAddress;
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/** Namespace to connect to */
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FString Namespace;
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/** Europa allows us to organize the payloads by bucket. Currently this is not exposed and just set to 'default' */
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FString Bucket;
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/** The max size of each payload chunk */
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uint64 ChunkSize;
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/** Url of the OAuth authorization server */
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FString OAuthProvider;
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/** Public identifier for use with the OAuth authorization server */
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FString OAuthClientId;
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/** Password for the OAuthClientId */
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FString OAuthSecret;
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/** The pool of FRequest objects that can be recycled */
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TUniquePtr<Utility::FRequestPool> RequestPool;
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/** Critical section used to protect the creation of new access tokens */
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FCriticalSection AccessCs;
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/** The access token used with service authorization */
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TUniquePtr<Utility::FAccessToken> AccessToken;
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/** Count how many times a login has failed since the last successful login */
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uint32 FailedLoginAttempts;
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};
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} // namespace UE::Virtualization
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