jellyfin/MediaBrowser.Common.Implementations/Updates/PackageManager.cs

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C#
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Common.Kernel;
using MediaBrowser.Common.Net;
using MediaBrowser.Common.Security;
using MediaBrowser.Common.Updates;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Model.Updates;
namespace MediaBrowser.Common.Implementations.Updates
{
public class PackageManager : IPackageManager
{
public async Task<IEnumerable<PackageInfo>> GetAvailablePackages(IHttpClient client,
INetworkManager networkManager,
ISecurityManager securityManager,
ResourcePool resourcePool,
IJsonSerializer serializer,
CancellationToken cancellationToken)
{
var data = new Dictionary<string, string> { { "key", securityManager.SupporterKey }, { "mac", networkManager.GetMacAddress() } };
using (var json = await client.Post(Constants.Constants.MBAdminUrl + "service/package/retrieveall", data, resourcePool.Mb, cancellationToken).ConfigureAwait(false))
{
cancellationToken.ThrowIfCancellationRequested();
var packages = serializer.DeserializeFromStream<List<PackageInfo>>(json).ToList();
foreach (var package in packages)
{
package.versions = package.versions.Where(v => !string.IsNullOrWhiteSpace(v.sourceUrl))
.OrderByDescending(v => v.version).ToList();
}
return packages;
}
}
public async Task InstallPackage(IHttpClient client, ILogger logger, ResourcePool resourcePool, IProgress<double> progress, IApplicationPaths appPaths, PackageVersionInfo package, CancellationToken cancellationToken)
{
// Target based on if it is an archive or single assembly
// zip archives are assumed to contain directory structures relative to our ProgramDataPath
var isArchive = string.Equals(Path.GetExtension(package.targetFilename), ".zip", StringComparison.OrdinalIgnoreCase);
var target = Path.Combine(isArchive ? appPaths.TempUpdatePath : appPaths.PluginsPath, package.targetFilename);
// Download to temporary file so that, if interrupted, it won't destroy the existing installation
var tempFile = await client.GetTempFile(package.sourceUrl, resourcePool.Mb, cancellationToken, progress).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
// Validate with a checksum
if (package.checksum != Guid.Empty) // support for legacy uploads for now
{
using (var crypto = new MD5CryptoServiceProvider())
using (var stream = new BufferedStream(File.OpenRead(tempFile), 100000))
{
var check = Guid.Parse(BitConverter.ToString(crypto.ComputeHash(stream)).Replace("-", String.Empty));
if (check != package.checksum)
{
throw new ApplicationException(string.Format("Download validation failed for {0}. Probably corrupted during transfer.", package.name));
}
}
}
cancellationToken.ThrowIfCancellationRequested();
// Success - move it to the real target
try
{
File.Copy(tempFile, target, true);
File.Delete(tempFile);
}
catch (IOException e)
{
logger.ErrorException("Error attempting to move file from {0} to {1}", e, tempFile, target);
throw;
}
}
}
}