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49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Serialization/Archive.h"
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#include "Serialization/MemoryWriter.h"
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#include "Math/BigInt.h"
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#include "IPlatformFilePak.h"
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/**
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* Wrapper for writing and signing an archive
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*/
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class FSignedArchiveWriter : public FArchive
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{
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/** Buffer to sign */
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TArray<uint8> Buffer;
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/** Buffer writer */
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FMemoryWriter BufferArchive;
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/** The actual pak archive */
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FArchive& PakWriter;
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/** The filename of the signature file that accompanies the pak */
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FString PakSignaturesFilename;
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/** Size of the archive on disk (including signatures) */
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int64 SizeOnDisk;
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/** Data size (excluding signatures) */
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int64 PakSize;
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/** Signing key */
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const FRSAKeyHandle SigningKey;
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/** Hashes */
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TArray<TPakChunkHash> ChunkHashes;
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/**
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* Serializes and signs a buffer
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*/
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void SerializeBufferAndSign();
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public:
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FSignedArchiveWriter(FArchive& InPak, const FString& InPakFilename, const FRSAKeyHandle InSigningKey);
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virtual ~FSignedArchiveWriter();
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// FArchive interface
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virtual bool Close() override;
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virtual void Serialize(void* Data, int64 Length) override;
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virtual int64 Tell() override;
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virtual int64 TotalSize() override;
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virtual void Seek(int64 InPos) override;
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};
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