SharpZipLib
FileDBReader
SharpZipLib | FileDBReader | |
---|---|---|
5 | 3 | |
3,613 | 14 | |
0.6% | - | |
2.3 | 5.7 | |
about 1 month ago | about 1 month ago | |
C# | C# | |
MIT License | - |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
SharpZipLib
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Best practice to generate ZIP file for client side download?
public class DownloadStreamedZippedFilesActionResult : FileResult { private const int Zip64CentralDirectoryRecordSize = 56; private const int Zip64CentralDirectoryLocatorSize = 20; /// /// This was obtained by debugging DotNetZip. It might change in newer versions of the library. The size is hardcoded with no constant available, not even a private one. /// private const int DotNetZipLocalFileHeaderExtraFieldLength = 20; private const int DotNetZipCentralDirectoryHeaderExtraFieldLength = 32; private const string ZipExtension = ".zip"; private static readonly ILogger Logger = ApplicationLogging.CreateLogger(); private readonly IReadOnlyCollection files; private readonly CancellationToken cancellationToken; public DownloadStreamedZippedFilesActionResult(string fileName, IEnumerable files, CancellationToken cancellationToken) : base(MediaTypeConverter.GetMimeType(ZipExtension)) { this.files = files.ToArray(); FileDownloadName = fileName + ZipExtension; this.cancellationToken = cancellationToken; } public DownloadStreamedZippedFilesActionResult(string fileName, IEnumerable files) : this(fileName, files, new CancellationToken(false)) { } public override Task ExecuteResultAsync(ActionContext context) { var response = context.HttpContext.Response; response.OnStarting(() => { var contentDisposition = new ContentDispositionHeaderValue("attachment"); contentDisposition.SetHttpFileName(FileDownloadName); response.Headers.Add("access-control-expose-headers", new[] { "content-disposition", "content-length" }); response.Headers.Add("content-disposition", contentDisposition.ToString()); response.Headers.ContentLength = CalculateContentLength(); return Task.FromResult(0); }); var callback = GetCallback(); return callback(response.Body); } private Func GetCallback() { return async (outputStream) => { byte[] buffer = new byte[4096]; try { var countingStream = new CountingStream(outputStream); using (outputStream) using (var zipStream = new Ionic.Zip.ZipOutputStream(countingStream, true)) { zipStream.CompressionLevel = Ionic.Zlib.CompressionLevel.Level0; zipStream.CompressionMethod = Ionic.Zip.CompressionMethod.None; zipStream.EnableZip64 = Zip64Option.Always; foreach (var file in files) { using (var fileContent = await file.GetContentAsync()) { zipStream.PutNextEntry(file.Name); StreamUtils.Copy(fileContent, zipStream, buffer); zipStream.Flush(); outputStream.Flush(); } cancellationToken.ThrowIfCancellationRequested(); } zipStream.Flush(); zipStream.Close(); outputStream.Flush(); } } catch (Exception e) { Logger.LogError(e, "Unexpected error streaming {FileName}", FileDownloadName); throw; } }; } private long CalculateContentLength() { /* ZIP file size constants according to the specification https://users.cs.jmu.edu/buchhofp/forensics/formats/pkzip.html and https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT * Please note this only works with compression type 0 (store, no compression). * This formula also takes into account the additional content DotNetZip adds in the extra fields. It might be different for other zip providers. * ZIP constants come from SharpZipLib https://github.com/icsharpcode/SharpZipLib/blob/master/src/ICSharpCode.SharpZipLib/Zip/ZipConstants.cs */ return files.Count * (ZipConstants.LocalHeaderBaseSize + ZipConstants.Zip64DataDescriptorSize + ZipConstants.CentralHeaderBaseSize + DotNetZipLocalFileHeaderExtraFieldLength + DotNetZipCentralDirectoryHeaderExtraFieldLength) + 2 * files.Sum(f => f.Name.Length) + files.Sum(f => f.Size) + ZipConstants.EndOfCentralRecordBaseSize + Zip64CentralDirectoryRecordSize + Zip64CentralDirectoryLocatorSize; } } public record class StreamedFile { private readonly Func> fileFunc; public StreamedFile(string name, long size, Func> fileFunc) { this.fileFunc = fileFunc; Name = name; Size = size; } public string Name { get; } public long Size { get; } /// /// Callback to get the file from S3, Azure Storage or wherever /// public Task GetContentAsync() => fileFunc(); }
- Process StandardOutput misses lines when compared with direct CMD output (.NET 6)
- Package to open/extract a DEB archive in C#
- Problem exporting to CBZ (maybe Windows 11 problem)
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Malware downloaded from PyPI 41,000 times was surprisingly stealthy
Not python but I have story of team that depended on a C# library for saving zip files (SharpZipLib); turns out SharpZipLib had an issue: it could corrupt zip files ( https://github.com/icsharpcode/SharpZipLib/issues/391 ). This was a desktop app and reports from users came pouring in about they not being able to open their files. In response the company had to first manually recover their user's data; and nowadays they stress test sharpziplib to make sure it does not produce corrupted files in newer versions.
FileDBReader
- Save game viewer or structure breakdown?
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[MODDED] I joined the beauty "builders" club
I created this island based on a Vanilla island using some custom models, prebuilt Anno 1800 assets and assembled it using FileDBReader
- Map editor? Ability to move around islands?
What are some alternatives?
SharpCompress - SharpCompress is a fully managed C# library to deal with many compression types and formats.
anno1800_python_api_prober - Anno 1800 Mod to reverse-engineer the python API
DotNetZip.Semverd - A fork of the DotNetZip project without signing with a solution that compiles cleanly. This project aims to follow semver to avoid versioning conflicts. DotNetZip is a FAST, FREE class library and toolset for manipulating zip files. Use VB, C# or any .NET language to easily create, extract, or update zip files.
7Zip4Powershell - Powershell module for creating and extracting 7-Zip archives
Snappy.Sharp - An implementation of google's Snappy compression format in C#
Snappy for Windows
Smidge - A lightweight runtime CSS/JavaScript file minification, combination, compression & management library for ASP.Net Core
ZipWrapper - A simple zip wrapper based on Lzma and Zlib compress algorithm
Owin.Compression - Compression (Deflate / GZip) module for Microsoft OWIN filesystem pipeline. Works with Selfhost and also on AspNetCore.
RubyGems - The Ruby community's gem hosting service.