99 lines
3.7 KiB
C#
99 lines
3.7 KiB
C#
/*
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* MinIO .NET Library for Amazon S3 Compatible Cloud Storage, (C) 2020, 2021 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using Minio.DataModel.Encryption;
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namespace Minio.DataModel.Args;
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public class StatObjectArgs : ObjectConditionalQueryArgs<StatObjectArgs>
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{
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public StatObjectArgs()
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{
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RequestMethod = HttpMethod.Head;
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}
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internal long ObjectOffset { get; private set; }
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internal long ObjectLength { get; private set; }
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internal bool OffsetLengthSet { get; set; }
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internal override HttpRequestMessageBuilder BuildRequest(HttpRequestMessageBuilder requestMessageBuilder)
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{
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if (!string.IsNullOrEmpty(VersionId))
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requestMessageBuilder.AddQueryParameter("versionId", $"{VersionId}");
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if (Headers.TryGetValue(S3ZipExtractKey, out var value))
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requestMessageBuilder.AddQueryParameter(S3ZipExtractKey, value);
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return requestMessageBuilder;
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}
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internal override void Validate()
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{
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base.Validate();
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if (!string.IsNullOrEmpty(NotMatchETag) && !string.IsNullOrEmpty(MatchETag))
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throw new InvalidOperationException("Invalid to set both Etag match conditions " + nameof(NotMatchETag) +
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" and " + nameof(MatchETag));
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if (!ModifiedSince.Equals(default) &&
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!UnModifiedSince.Equals(default))
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throw new InvalidOperationException("Invalid to set both modified date match conditions " +
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nameof(ModifiedSince) + " and " + nameof(UnModifiedSince));
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if (OffsetLengthSet)
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{
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if (ObjectOffset < 0 || ObjectLength < 0)
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throw new InvalidDataException(nameof(ObjectOffset) + " and " + nameof(ObjectLength) +
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"cannot be less than 0.");
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if (ObjectOffset == 0 && ObjectLength == 0)
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throw new InvalidDataException("Either " + nameof(ObjectOffset) + " or " + nameof(ObjectLength) +
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" must be greater than 0.");
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}
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Populate();
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}
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private void Populate()
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{
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Headers ??= new Dictionary<string, string>(StringComparer.Ordinal);
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if (SSE?.GetEncryptionType().Equals(EncryptionType.SSE_C) == true) SSE.Marshal(Headers);
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if (OffsetLengthSet)
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{
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// "Range" header accepts byte start index and end index
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if (ObjectLength > 0 && ObjectOffset > 0)
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Headers["Range"] = "bytes=" + ObjectOffset + "-" + (ObjectOffset + ObjectLength - 1);
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else if (ObjectLength == 0 && ObjectOffset > 0)
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Headers["Range"] = "bytes=" + ObjectOffset + "-";
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else if (ObjectLength > 0 && ObjectOffset == 0) Headers["Range"] = "bytes=0-" + (ObjectLength - 1);
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}
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}
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public StatObjectArgs WithOffsetAndLength(long offset, long length)
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{
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OffsetLengthSet = true;
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ObjectOffset = offset < 0 ? 0 : offset;
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ObjectLength = length < 0 ? 0 : length;
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return this;
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}
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public StatObjectArgs WithLength(long length)
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{
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OffsetLengthSet = true;
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ObjectOffset = 0;
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ObjectLength = length < 0 ? 0 : length;
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return this;
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}
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}
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