108 lines
No EOL
3.2 KiB
C#
108 lines
No EOL
3.2 KiB
C#
using System.Linq;
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using Google.Protobuf;
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using FrostFS.Object;
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using FrostFS.Refs;
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using FrostFS.SDK.ClientV2.Mappers.GRPC;
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using FrostFS.SDK.Cryptography;
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namespace FrostFS.SDK.ClientV2;
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internal class ObjectTools
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{
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internal static FrostFsObjectId CalculateObjectId(FrostFsObjectHeader header, Context ctx)
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{
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var grpcHeader = CreateHeader(header, [], ctx);
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if (header.Split != null)
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SetSplitValues(grpcHeader, header.Split, ctx);
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return new ObjectID { Value = grpcHeader.Sha256() }.ToModel();
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}
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internal static Object.Object CreateObject(FrostFsObject @object, Context ctx)
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{
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@object.Header.OwnerId ??= ctx.OwnerId;
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@object.Header.Version ??= ctx.Version;
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var grpcHeader = @object.Header.GetHeader();
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grpcHeader.PayloadLength = (ulong)@object.Payload.Length;
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grpcHeader.PayloadHash = Sha256Checksum(@object.Payload);
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var split = @object.Header.Split;
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if (split != null)
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{
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SetSplitValues(grpcHeader, split, ctx);
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}
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var obj = new Object.Object
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{
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Header = grpcHeader,
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ObjectId = new ObjectID { Value = grpcHeader.Sha256() },
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Payload = ByteString.CopyFrom(@object.Payload)
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};
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obj.Signature = new Refs.Signature
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{
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Key = ctx.GetPublicKeyCache(),
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Sign = ByteString.CopyFrom(ctx.Key.SignData(obj.ObjectId.ToByteArray())),
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};
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return obj;
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}
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internal static void SetSplitValues(Header grpcHeader, FrostFsSplit split, Context ctx)
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{
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if (split == null)
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return;
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grpcHeader.Split = new Header.Types.Split
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{
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SplitId = split.SplitId?.GetSplitId()
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};
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if (split.Children != null && split.Children.Count != 0)
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grpcHeader.Split.Children.AddRange(split.Children.Select(id => id.ToMessage()));
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if (split.ParentHeader is not null)
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{
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var grpcParentHeader = CreateHeader(split.ParentHeader, [], ctx);
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grpcHeader.Split.Parent = new ObjectID { Value = grpcParentHeader.Sha256() };
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grpcHeader.Split.ParentHeader = grpcParentHeader;
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grpcHeader.Split.ParentSignature = new Refs.Signature
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{
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Key = ctx.GetPublicKeyCache(),
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Sign = ByteString.CopyFrom(ctx.Key.SignData(grpcHeader.Split.Parent.ToByteArray())),
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};
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split.Parent = grpcHeader.Split.Parent.ToModel();
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}
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grpcHeader.Split.Previous = split.Previous?.ToMessage();
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}
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internal static Header CreateHeader(FrostFsObjectHeader header, byte[]? payload, Context ctx)
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{
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header.OwnerId ??= ctx.OwnerId;
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header.Version ??= ctx.Version;
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var grpcHeader = header.GetHeader();
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if (payload != null) // && payload.Length > 0
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grpcHeader.PayloadHash = Sha256Checksum(payload);
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return grpcHeader;
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}
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internal static Checksum Sha256Checksum(byte[] data)
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{
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return new Checksum
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{
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Type = ChecksumType.Sha256,
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Sum = ByteString.CopyFrom(data.Sha256())
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};
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}
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} |