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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| // Copyright 2023-present Etherna SA | ||
| // This file is part of UniversalFiles. | ||
| // | ||
| // UniversalFiles is free software: you can redistribute it and/or modify it under the terms of the | ||
| // GNU Lesser General Public License as published by the Free Software Foundation, | ||
| // either version 3 of the License, or (at your option) any later version. | ||
| // | ||
| // UniversalFiles is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; | ||
| // without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
| // See the GNU Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public License along with UniversalFiles. | ||
| // If not, see <https://www.gnu.org/licenses/>. | ||
|
|
||
| using Etherna.BeeNet; | ||
| using System; | ||
| using System.IO; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
|
|
||
| namespace Etherna.UniversalFiles | ||
| { | ||
| public class SwarmUFile( | ||
| IBeeClient beeClient, | ||
| UUri fileUri) | ||
| : UFile(fileUri) | ||
| { | ||
| protected override async Task<(bool Result, (byte[] ByteArray, Encoding? Encoding)? ContentCache)> ExistsAsync( | ||
| string absoluteUri, | ||
| UUriKind absoluteUriKind) | ||
| { | ||
| if (absoluteUriKind != UUriKind.OnlineAbsolute) | ||
| throw new InvalidOperationException( | ||
| "Invalid online absolute uri kind. It can't be casted to SwarmAddress"); | ||
|
|
||
| // Try to get file head. | ||
| try | ||
| { | ||
| var headers = await beeClient.TryGetFileHeadersAsync(absoluteUri).ConfigureAwait(false); | ||
| if (headers is null) | ||
| return (false, null); | ||
| } | ||
| catch { return (false, null); } | ||
|
|
||
| return (true, null); | ||
| } | ||
|
|
||
| protected override async Task<(long Result, (byte[] ByteArray, Encoding? Encoding)? ContentCache)> GetByteSizeAsync( | ||
| string absoluteUri, | ||
| UUriKind absoluteUriKind) | ||
| { | ||
| var size = await beeClient.TryGetFileSizeAsync(absoluteUri).ConfigureAwait(false); | ||
| if (size is null) | ||
| throw new InvalidOperationException(); | ||
| return (size.Value, null); | ||
| } | ||
|
|
||
| protected override async Task<(byte[] ByteArray, Encoding? Encoding)> ReadToByteArrayAsync( | ||
| string absoluteUri, | ||
| UUriKind absoluteUriKind) | ||
| { | ||
| var (contentStream, encoding) = await ReadToStreamAsync(absoluteUri, absoluteUriKind).ConfigureAwait(false); | ||
|
|
||
| // Copy stream to memory stream. | ||
| using var memoryStream = new MemoryStream(); | ||
| await contentStream.CopyToAsync(memoryStream).ConfigureAwait(false); | ||
| memoryStream.Position = 0; | ||
|
|
||
| var byteArrayContent = memoryStream.ToArray(); | ||
| await contentStream.DisposeAsync().ConfigureAwait(false); | ||
|
|
||
| return (byteArrayContent, encoding); | ||
| } | ||
|
|
||
| protected override async Task<(Stream Stream, Encoding? Encoding)> ReadToStreamAsync( | ||
| string absoluteUri, | ||
| UUriKind absoluteUriKind) | ||
| { | ||
| var result = await beeClient.GetFileAsync(absoluteUri).ConfigureAwait(false); | ||
|
|
||
| // Try to extract the encoding from the Content-Type header. | ||
| Encoding? contentEncoding = null; | ||
| if (result.ContentHeaders?.ContentType?.CharSet != null) | ||
| { | ||
| try { contentEncoding = Encoding.GetEncoding(result.ContentHeaders.ContentType.CharSet); } | ||
| catch (ArgumentException) { } | ||
| } | ||
|
|
||
| return (result.Stream, contentEncoding); | ||
| } | ||
|
|
||
| protected override Task<string?> TryGetFileNameAsync(string originalUri) => | ||
| beeClient.TryGetFileNameAsync(originalUri); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| // Copyright 2023-present Etherna SA | ||
| // This file is part of UniversalFiles. | ||
| // | ||
| // UniversalFiles is free software: you can redistribute it and/or modify it under the terms of the | ||
| // GNU Lesser General Public License as published by the Free Software Foundation, | ||
| // either version 3 of the License, or (at your option) any later version. | ||
| // | ||
| // UniversalFiles is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; | ||
| // without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
| // See the GNU Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public License along with UniversalFiles. | ||
| // If not, see <https://www.gnu.org/licenses/>. | ||
|
|
||
| using Etherna.BeeNet.Models; | ||
| using System; | ||
|
|
||
| namespace Etherna.UniversalFiles | ||
| { | ||
| public class SwarmUUri( | ||
| SwarmUri uri, | ||
| UUriKind allowedUriKinds = UUriKind.All, | ||
| string? defaultBaseDirectory = null) | ||
| : UUri(uri.ToString(), GetUriKind(uri.ToString()) & allowedUriKinds, defaultBaseDirectory) | ||
| { | ||
| // Public static methods. | ||
| public static UUriKind GetUriKind(string uri) | ||
| { | ||
| ArgumentNullException.ThrowIfNull(uri, nameof(uri)); | ||
| return SwarmHash.IsValidHash(uri.Split(SwarmAddress.Separator)[0]) | ||
| ? UUriKind.OnlineAbsolute | ||
| : UUriKind.OnlineRelative; | ||
| } | ||
|
|
||
| // Protected methods. | ||
| protected internal override UUriKind GetUriKindHelper(string uri) => GetUriKind(uri); | ||
|
|
||
| protected internal override (string AbsoluteUri, UUriKind UriKind)? TryGetParentDirectoryAsAbsoluteUri( | ||
| string absoluteUri, | ||
| UUriKind absoluteUriKind) => | ||
| throw new InvalidOperationException("Swarm doesn't implement concept of directories"); | ||
|
|
||
| protected internal override (string AbsoluteUri, UUriKind UriKind) UriToAbsoluteUri( | ||
| string originalUri, | ||
| string? baseDirectory, | ||
| UUriKind uriKind) | ||
| { | ||
| ArgumentNullException.ThrowIfNull(originalUri, nameof(originalUri)); | ||
|
|
||
| // Resolve absolute url. | ||
| switch (uriKind) | ||
| { | ||
| case UUriKind.OnlineAbsolute: | ||
| return (new SwarmAddress(originalUri).ToString(), UUriKind.OnlineAbsolute); | ||
|
|
||
| case UUriKind.OnlineRelative: | ||
| if (baseDirectory is null) | ||
| throw new ArgumentNullException(nameof(baseDirectory), | ||
| "Base directory can't be null with relative original uri"); | ||
|
|
||
| if ((GetUriKind(baseDirectory) & UUriKind.Absolute) == 0) | ||
| throw new InvalidOperationException( | ||
| "If uri kind is relative, base directory must be absolute"); | ||
|
|
||
| var swarmUri = new SwarmUri(originalUri, System.UriKind.Relative); | ||
| var swarmAddress = swarmUri.ToSwarmAddress(baseDirectory); | ||
|
|
||
| return (swarmAddress.ToString(), UUriKind.OnlineAbsolute); | ||
|
|
||
| default: throw new InvalidOperationException("Can't find a valid uri kind"); | ||
| } | ||
| } | ||
| } | ||
| } |
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