| | | 1 | | #pragma warning disable CS1591 |
| | | 2 | | |
| | | 3 | | using System; |
| | | 4 | | using System.Globalization; |
| | | 5 | | using System.IO; |
| | | 6 | | using System.Text; |
| | | 7 | | using System.Threading; |
| | | 8 | | using MediaBrowser.Common.Configuration; |
| | | 9 | | using Microsoft.Extensions.Logging; |
| | | 10 | | |
| | | 11 | | namespace Emby.Server.Implementations.Devices |
| | | 12 | | { |
| | | 13 | | public class DeviceId |
| | | 14 | | { |
| | | 15 | | private readonly IApplicationPaths _appPaths; |
| | | 16 | | private readonly ILogger<DeviceId> _logger; |
| | 21 | 17 | | private readonly Lock _syncLock = new(); |
| | | 18 | | |
| | | 19 | | private string? _id; |
| | | 20 | | |
| | | 21 | | public DeviceId(IApplicationPaths appPaths, ILogger<DeviceId> logger) |
| | | 22 | | { |
| | 21 | 23 | | _appPaths = appPaths; |
| | 21 | 24 | | _logger = logger; |
| | 21 | 25 | | } |
| | | 26 | | |
| | 98 | 27 | | public string Value => _id ??= GetDeviceId(); |
| | | 28 | | |
| | 42 | 29 | | private string CachePath => Path.Combine(_appPaths.DataPath, "device.txt"); |
| | | 30 | | |
| | | 31 | | private string? GetCachedId() |
| | | 32 | | { |
| | | 33 | | try |
| | 21 | 34 | | { |
| | | 35 | | lock (_syncLock) |
| | | 36 | | { |
| | 21 | 37 | | var value = File.ReadAllText(CachePath, Encoding.UTF8); |
| | | 38 | | |
| | 0 | 39 | | if (Guid.TryParse(value, out _)) |
| | | 40 | | { |
| | 0 | 41 | | return value; |
| | | 42 | | } |
| | | 43 | | |
| | 0 | 44 | | _logger.LogError("Invalid value found in device id file"); |
| | 0 | 45 | | } |
| | 0 | 46 | | } |
| | 0 | 47 | | catch (DirectoryNotFoundException) |
| | | 48 | | { |
| | 0 | 49 | | } |
| | 21 | 50 | | catch (FileNotFoundException) |
| | | 51 | | { |
| | 21 | 52 | | } |
| | 0 | 53 | | catch (Exception ex) |
| | | 54 | | { |
| | 0 | 55 | | _logger.LogError(ex, "Error reading file"); |
| | 0 | 56 | | } |
| | | 57 | | |
| | 21 | 58 | | return null; |
| | 0 | 59 | | } |
| | | 60 | | |
| | | 61 | | private void SaveId(string id) |
| | | 62 | | { |
| | | 63 | | try |
| | | 64 | | { |
| | 21 | 65 | | var path = CachePath; |
| | | 66 | | |
| | 21 | 67 | | Directory.CreateDirectory(Path.GetDirectoryName(path) ?? throw new InvalidOperationException("Path can't |
| | | 68 | | |
| | | 69 | | lock (_syncLock) |
| | | 70 | | { |
| | 21 | 71 | | File.WriteAllText(path, id, Encoding.UTF8); |
| | 21 | 72 | | } |
| | 21 | 73 | | } |
| | 0 | 74 | | catch (Exception ex) |
| | | 75 | | { |
| | 0 | 76 | | _logger.LogError(ex, "Error writing to file"); |
| | 0 | 77 | | } |
| | 21 | 78 | | } |
| | | 79 | | |
| | | 80 | | private static string GetNewId() |
| | | 81 | | { |
| | 21 | 82 | | return Guid.NewGuid().ToString("N", CultureInfo.InvariantCulture); |
| | | 83 | | } |
| | | 84 | | |
| | | 85 | | private string GetDeviceId() |
| | | 86 | | { |
| | 21 | 87 | | var id = GetCachedId(); |
| | | 88 | | |
| | 21 | 89 | | if (string.IsNullOrWhiteSpace(id)) |
| | | 90 | | { |
| | 21 | 91 | | id = GetNewId(); |
| | 21 | 92 | | SaveId(id); |
| | | 93 | | } |
| | | 94 | | |
| | 21 | 95 | | return id; |
| | | 96 | | } |
| | | 97 | | } |
| | | 98 | | } |