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using System;
using System.Collections.Concurrent;
using System.Linq;
using System.Threading.Tasks;
using Jellyfin.Data.Entities;
using Jellyfin.Data.Entities.Security;
using Jellyfin.Data.Enums;
using Jellyfin.Data.Events;
using MediaBrowser.Controller.Devices;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Devices;
using MediaBrowser.Model.Querying;
using MediaBrowser.Model.Session;
using Microsoft.EntityFrameworkCore;
namespace Jellyfin.Server.Implementations.Devices
{
/// <summary>
/// Manages the creation, updating, and retrieval of devices.
/// </summary>
public class DeviceManager : IDeviceManager
{
private readonly JellyfinDbProvider _dbProvider;
private readonly IUserManager _userManager;
private readonly ConcurrentDictionary<string, ClientCapabilities> _capabilitiesMap = new ();
/// <summary>
/// Initializes a new instance of the <see cref="DeviceManager"/> class.
/// </summary>
/// <param name="dbProvider">The database provider.</param>
/// <param name="userManager">The user manager.</param>
public DeviceManager(JellyfinDbProvider dbProvider, IUserManager userManager)
{
_dbProvider = dbProvider;
_userManager = userManager;
}
/// <inheritdoc />
public event EventHandler<GenericEventArgs<Tuple<string, DeviceOptions>>>? DeviceOptionsUpdated;
/// <inheritdoc />
public void SaveCapabilities(string deviceId, ClientCapabilities capabilities)
{
_capabilitiesMap[deviceId] = capabilities;
}
/// <inheritdoc />
public async Task UpdateDeviceOptions(string deviceId, DeviceOptions options)
{
await using var dbContext = _dbProvider.CreateContext();
await dbContext.Database
.ExecuteSqlRawAsync($"UPDATE [DeviceOptions] SET [CustomName] = ${options.CustomName}")
.ConfigureAwait(false);
DeviceOptionsUpdated?.Invoke(this, new GenericEventArgs<Tuple<string, DeviceOptions>>(new Tuple<string, DeviceOptions>(deviceId, options)));
}
/// <inheritdoc />
public async Task<DeviceOptions?> GetDeviceOptions(string deviceId)
{
await using var dbContext = _dbProvider.CreateContext();
return await dbContext.DeviceOptions
.AsQueryable()
.FirstOrDefaultAsync(d => d.DeviceId == deviceId)
.ConfigureAwait(false);
}
/// <inheritdoc />
public ClientCapabilities GetCapabilities(string deviceId)
{
return _capabilitiesMap.TryGetValue(deviceId, out ClientCapabilities? result)
? result
: new ClientCapabilities();
}
/// <inheritdoc />
public async Task<DeviceInfo?> GetDevice(string id)
{
await using var dbContext = _dbProvider.CreateContext();
var device = await dbContext.Devices
.AsQueryable()
.Where(d => d.DeviceId == id)
.OrderByDescending(d => d.DateLastActivity)
.Include(d => d.User)
.FirstOrDefaultAsync()
.ConfigureAwait(false);
var deviceInfo = device == null ? null : ToDeviceInfo(device);
return deviceInfo;
}
/// <inheritdoc />
public async Task<QueryResult<DeviceInfo>> GetDevicesForUser(Guid? userId, bool? supportsSync)
{
await using var dbContext = _dbProvider.CreateContext();
var sessions = dbContext.Devices
.AsQueryable()
.OrderBy(d => d.DeviceId)
.ThenByDescending(d => d.DateLastActivity)
.AsAsyncEnumerable();
if (supportsSync.HasValue)
{
sessions = sessions.Where(i => GetCapabilities(i.DeviceId).SupportsSync == supportsSync.Value);
}
if (userId.HasValue)
{
var user = _userManager.GetUserById(userId.Value);
sessions = sessions.Where(i => CanAccessDevice(user, i.DeviceId));
}
var array = await sessions.Select(ToDeviceInfo).ToArrayAsync().ConfigureAwait(false);
return new QueryResult<DeviceInfo>(array);
}
/// <inheritdoc />
public bool CanAccessDevice(User user, string deviceId)
{
if (user == null)
{
throw new ArgumentException("user not found");
}
if (string.IsNullOrEmpty(deviceId))
{
throw new ArgumentNullException(nameof(deviceId));
}
if (user.HasPermission(PermissionKind.EnableAllDevices) || user.HasPermission(PermissionKind.IsAdministrator))
{
return true;
}
return user.GetPreference(PreferenceKind.EnabledDevices).Contains(deviceId, StringComparer.OrdinalIgnoreCase)
|| !GetCapabilities(deviceId).SupportsPersistentIdentifier;
}
private DeviceInfo ToDeviceInfo(Device authInfo)
{
var caps = GetCapabilities(authInfo.DeviceId);
return new DeviceInfo
{
AppName = authInfo.AppName,
AppVersion = authInfo.AppVersion,
Id = authInfo.DeviceId,
LastUserId = authInfo.UserId,
LastUserName = authInfo.User.Username,
Name = authInfo.DeviceName,
DateLastActivity = authInfo.DateLastActivity,
IconUrl = caps.IconUrl
};
}
}
}
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