67 lines
2.3 KiB
C#
67 lines
2.3 KiB
C#
using System.Security.Cryptography;
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using DTLib.Extensions;
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using Mlaumcherb.Client.Avalonia.зримое;
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using Mlaumcherb.Client.Avalonia.классы;
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using Mlaumcherb.Client.Avalonia.холопы;
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using static Mlaumcherb.Client.Avalonia.сеть.NetworkHelper;
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namespace Mlaumcherb.Client.Avalonia.сеть.TaskFactories;
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public class VersionJarDownloadTaskFactory : INetworkTaskFactory
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{
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private GameVersionDescriptor _descriptor;
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private IOPath _filePath;
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private SHA1 _hasher;
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public VersionJarDownloadTaskFactory(GameVersionDescriptor descriptor)
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{
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_descriptor = descriptor;
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_filePath = PathHelper.GetVersionJarFilePath(_descriptor.id);
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_hasher = SHA1.Create();
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}
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public Task<NetworkTask?> CreateAsync(bool checkHashes)
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{
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NetworkTask? networkTask = null;
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if (!CheckFiles(checkHashes))
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networkTask = new NetworkTask(
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$"version jar '{_descriptor.id}'",
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GetTotalSize(),
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Download
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);
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return Task.FromResult(networkTask);
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}
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private bool CheckFiles(bool checkHashes)
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{
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if (!File.Exists(_filePath))
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return false;
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if (!checkHashes)
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return true;
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if (_descriptor.downloads is null)
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return true;
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using var fs = File.OpenRead(_filePath);
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string hash = _hasher.ComputeHash(fs).HashToString();
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return hash == _descriptor.downloads.client.sha1;
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}
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private long GetTotalSize()
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{
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if(_descriptor.downloads is null)
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return 0;
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return _descriptor.downloads.client.size;
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}
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private async Task Download(NetworkProgressReporter pr, CancellationToken ct)
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{
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if (_descriptor.downloads is null)
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throw new Exception($"can't download version jar '{_descriptor.id}' because it has no download url");
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LauncherApp.Logger.LogInfo(nameof(NetworkHelper), $"started downloading version jar '{_descriptor.id}'");
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await DownloadFile(_descriptor.downloads.client.url, _filePath, ct, pr.AddBytesCount);
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LauncherApp.Logger.LogInfo(nameof(NetworkHelper), $"finished downloading version jar '{_descriptor.id}'");
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}
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} |