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f7937d2473
#rb trivial #jira UE-136515 #rnx #preflight 61b21e3b764790bee6bdb8b3 - This backend is still most likely going to be deleted before 5.0 ships but just in case it is not I am doing the renaming now to keep in step with the names we are using for Jupiter when communicating with externals. #ROBOMERGE-AUTHOR: paul.chipchase #ROBOMERGE-SOURCE: CL 18419810 in //UE5/Release-5.0/... via CL 18422457 #ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v897-18405271) [CL 18422718 by paul chipchase in ue5-release-engine-test branch]
92 lines
3.4 KiB
C++
92 lines
3.4 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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* 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 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 FPayloadId& Id, const FCompressedBuffer& CompressedPayload, const FString& PackageContext) override;
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virtual FCompressedBuffer PullData(const FPayloadId& Id) override;
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virtual bool DoesPayloadExist(const FPayloadId& 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 FPayloadId& PayloadId, FString& OutHashAsString);
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bool PullChunk(const FString& Hash, const FPayloadId& 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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