Merge pull request #3340 from crobibero/api-migration-merge

Merge master into api-migration

1 files changed, 841 insertions, 0 deletions

diff --git a/Jellyfin.Server.Implementations/Users/UserManager.cs b/Jellyfin.Server.Implementations/Users/UserManager.cs
new file mode 100644
index 000000000..904114758
--- /dev/null
+++ b/Jellyfin.Server.Implementations/Users/UserManager.cs
@@ -0,0 +1,841 @@
+#nullable enable
+#pragma warning disable CA1307
+
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using Jellyfin.Data.Entities;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Common;
+using MediaBrowser.Common.Cryptography;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Controller.Authentication;
+using MediaBrowser.Controller.Drawing;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Net;
+using MediaBrowser.Model.Configuration;
+using MediaBrowser.Model.Cryptography;
+using MediaBrowser.Model.Dto;
+using MediaBrowser.Model.Events;
+using MediaBrowser.Model.Users;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Server.Implementations.Users
+{
+    /// <summary>
+    /// Manages the creation and retrieval of <see cref="User"/> instances.
+    /// </summary>
+    public class UserManager : IUserManager
+    {
+        private readonly JellyfinDbProvider _dbProvider;
+        private readonly ICryptoProvider _cryptoProvider;
+        private readonly INetworkManager _networkManager;
+        private readonly IApplicationHost _appHost;
+        private readonly IImageProcessor _imageProcessor;
+        private readonly ILogger<UserManager> _logger;
+
+        private IAuthenticationProvider[] _authenticationProviders = null!;
+        private DefaultAuthenticationProvider _defaultAuthenticationProvider = null!;
+        private InvalidAuthProvider _invalidAuthProvider = null!;
+        private IPasswordResetProvider[] _passwordResetProviders = null!;
+        private DefaultPasswordResetProvider _defaultPasswordResetProvider = null!;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UserManager"/> class.
+        /// </summary>
+        /// <param name="dbProvider">The database provider.</param>
+        /// <param name="cryptoProvider">The cryptography provider.</param>
+        /// <param name="networkManager">The network manager.</param>
+        /// <param name="appHost">The application host.</param>
+        /// <param name="imageProcessor">The image processor.</param>
+        /// <param name="logger">The logger.</param>
+        public UserManager(
+            JellyfinDbProvider dbProvider,
+            ICryptoProvider cryptoProvider,
+            INetworkManager networkManager,
+            IApplicationHost appHost,
+            IImageProcessor imageProcessor,
+            ILogger<UserManager> logger)
+        {
+            _dbProvider = dbProvider;
+            _cryptoProvider = cryptoProvider;
+            _networkManager = networkManager;
+            _appHost = appHost;
+            _imageProcessor = imageProcessor;
+            _logger = logger;
+        }
+
+        /// <inheritdoc/>
+        public event EventHandler<GenericEventArgs<User>>? OnUserPasswordChanged;
+
+        /// <inheritdoc/>
+        public event EventHandler<GenericEventArgs<User>>? OnUserUpdated;
+
+        /// <inheritdoc/>
+        public event EventHandler<GenericEventArgs<User>>? OnUserCreated;
+
+        /// <inheritdoc/>
+        public event EventHandler<GenericEventArgs<User>>? OnUserDeleted;
+
+        /// <inheritdoc/>
+        public event EventHandler<GenericEventArgs<User>>? OnUserLockedOut;
+
+        /// <inheritdoc/>
+        public IEnumerable<User> Users => _dbProvider.CreateContext().Users;
+
+        /// <inheritdoc/>
+        public IEnumerable<Guid> UsersIds => _dbProvider.CreateContext().Users.Select(u => u.Id);
+
+        /// <inheritdoc/>
+        public User? GetUserById(Guid id)
+        {
+            if (id == Guid.Empty)
+            {
+                throw new ArgumentException("Guid can't be empty", nameof(id));
+            }
+
+            return _dbProvider.CreateContext().Users.Find(id);
+        }
+
+        /// <inheritdoc/>
+        public User? GetUserByName(string name)
+        {
+            if (string.IsNullOrWhiteSpace(name))
+            {
+                throw new ArgumentException("Invalid username", nameof(name));
+            }
+
+            // This can't use an overload with StringComparer because that would cause the query to
+            // have to be evaluated client-side.
+            return _dbProvider.CreateContext().Users.FirstOrDefault(u => string.Equals(u.Username, name));
+        }
+
+        /// <inheritdoc/>
+        public async Task RenameUser(User user, string newName)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            if (string.IsNullOrWhiteSpace(newName))
+            {
+                throw new ArgumentException("Invalid username", nameof(newName));
+            }
+
+            if (user.Username.Equals(newName, StringComparison.Ordinal))
+            {
+                throw new ArgumentException("The new and old names must be different.");
+            }
+
+            if (Users.Any(u => u.Id != user.Id && u.Username.Equals(newName, StringComparison.OrdinalIgnoreCase)))
+            {
+                throw new ArgumentException(string.Format(
+                    CultureInfo.InvariantCulture,
+                    "A user with the name '{0}' already exists.",
+                    newName));
+            }
+
+            user.Username = newName;
+            await UpdateUserAsync(user).ConfigureAwait(false);
+
+            OnUserUpdated?.Invoke(this, new GenericEventArgs<User>(user));
+        }
+
+        /// <inheritdoc/>
+        public void UpdateUser(User user)
+        {
+            var dbContext = _dbProvider.CreateContext();
+            dbContext.Users.Update(user);
+            dbContext.SaveChanges();
+        }
+
+        /// <inheritdoc/>
+        public async Task UpdateUserAsync(User user)
+        {
+            var dbContext = _dbProvider.CreateContext();
+            dbContext.Users.Update(user);
+
+            await dbContext.SaveChangesAsync().ConfigureAwait(false);
+        }
+
+        /// <inheritdoc/>
+        public User CreateUser(string name)
+        {
+            if (!IsValidUsername(name))
+            {
+                throw new ArgumentException("Usernames can contain unicode symbols, numbers (0-9), dashes (-), underscores (_), apostrophes ('), and periods (.)");
+            }
+
+            var dbContext = _dbProvider.CreateContext();
+
+            // TODO: Remove after user item data is migrated.
+            var max = dbContext.Users.Any() ? dbContext.Users.Select(u => u.InternalId).Max() : 0;
+
+            var newUser = new User(
+                name,
+                _defaultAuthenticationProvider.GetType().FullName,
+                _defaultPasswordResetProvider.GetType().FullName)
+            {
+                InternalId = max + 1
+            };
+            dbContext.Users.Add(newUser);
+            dbContext.SaveChanges();
+
+            OnUserCreated?.Invoke(this, new GenericEventArgs<User>(newUser));
+
+            return newUser;
+        }
+
+        /// <inheritdoc/>
+        public void DeleteUser(User user)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            var dbContext = _dbProvider.CreateContext();
+
+            if (dbContext.Users.Find(user.Id) == null)
+            {
+                throw new ArgumentException(string.Format(
+                    CultureInfo.InvariantCulture,
+                    "The user cannot be deleted because there is no user with the Name {0} and Id {1}.",
+                    user.Username,
+                    user.Id));
+            }
+
+            if (dbContext.Users.Count() == 1)
+            {
+                throw new InvalidOperationException(string.Format(
+                    CultureInfo.InvariantCulture,
+                    "The user '{0}' cannot be deleted because there must be at least one user in the system.",
+                    user.Username));
+            }
+
+            if (user.HasPermission(PermissionKind.IsAdministrator)
+                && Users.Count(i => i.HasPermission(PermissionKind.IsAdministrator)) == 1)
+            {
+                throw new ArgumentException(
+                    string.Format(
+                        CultureInfo.InvariantCulture,
+                        "The user '{0}' cannot be deleted because there must be at least one admin user in the system.",
+                        user.Username),
+                    nameof(user));
+            }
+
+            dbContext.Users.Remove(user);
+            dbContext.SaveChanges();
+            OnUserDeleted?.Invoke(this, new GenericEventArgs<User>(user));
+        }
+
+        /// <inheritdoc/>
+        public Task ResetPassword(User user)
+        {
+            return ChangePassword(user, string.Empty);
+        }
+
+        /// <inheritdoc/>
+        public void ResetEasyPassword(User user)
+        {
+            ChangeEasyPassword(user, string.Empty, null);
+        }
+
+        /// <inheritdoc/>
+        public async Task ChangePassword(User user, string newPassword)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            await GetAuthenticationProvider(user).ChangePassword(user, newPassword).ConfigureAwait(false);
+            await UpdateUserAsync(user).ConfigureAwait(false);
+
+            OnUserPasswordChanged?.Invoke(this, new GenericEventArgs<User>(user));
+        }
+
+        /// <inheritdoc/>
+        public void ChangeEasyPassword(User user, string newPassword, string? newPasswordSha1)
+        {
+            GetAuthenticationProvider(user).ChangeEasyPassword(user, newPassword, newPasswordSha1);
+            UpdateUser(user);
+
+            OnUserPasswordChanged?.Invoke(this, new GenericEventArgs<User>(user));
+        }
+
+        /// <inheritdoc/>
+        public UserDto GetUserDto(User user, string? remoteEndPoint = null)
+        {
+            var hasPassword = GetAuthenticationProvider(user).HasPassword(user);
+            return new UserDto
+            {
+                Name = user.Username,
+                Id = user.Id,
+                ServerId = _appHost.SystemId,
+                HasPassword = hasPassword,
+                HasConfiguredPassword = hasPassword,
+                HasConfiguredEasyPassword = !string.IsNullOrEmpty(user.EasyPassword),
+                EnableAutoLogin = user.EnableAutoLogin,
+                LastLoginDate = user.LastLoginDate,
+                LastActivityDate = user.LastActivityDate,
+                PrimaryImageTag = user.ProfileImage != null ? _imageProcessor.GetImageCacheTag(user) : null,
+                Configuration = new UserConfiguration
+                {
+                    SubtitleMode = user.SubtitleMode,
+                    HidePlayedInLatest = user.HidePlayedInLatest,
+                    EnableLocalPassword = user.EnableLocalPassword,
+                    PlayDefaultAudioTrack = user.PlayDefaultAudioTrack,
+                    DisplayCollectionsView = user.DisplayCollectionsView,
+                    DisplayMissingEpisodes = user.DisplayMissingEpisodes,
+                    AudioLanguagePreference = user.AudioLanguagePreference,
+                    RememberAudioSelections = user.RememberAudioSelections,
+                    EnableNextEpisodeAutoPlay = user.EnableNextEpisodeAutoPlay,
+                    RememberSubtitleSelections = user.RememberSubtitleSelections,
+                    SubtitleLanguagePreference = user.SubtitleLanguagePreference ?? string.Empty,
+                    OrderedViews = user.GetPreference(PreferenceKind.OrderedViews),
+                    GroupedFolders = user.GetPreference(PreferenceKind.GroupedFolders),
+                    MyMediaExcludes = user.GetPreference(PreferenceKind.MyMediaExcludes),
+                    LatestItemsExcludes = user.GetPreference(PreferenceKind.LatestItemExcludes)
+                },
+                Policy = new UserPolicy
+                {
+                    MaxParentalRating = user.MaxParentalAgeRating,
+                    EnableUserPreferenceAccess = user.EnableUserPreferenceAccess,
+                    RemoteClientBitrateLimit = user.RemoteClientBitrateLimit ?? 0,
+                    AuthenticationProviderId = user.AuthenticationProviderId,
+                    PasswordResetProviderId = user.PasswordResetProviderId,
+                    InvalidLoginAttemptCount = user.InvalidLoginAttemptCount,
+                    LoginAttemptsBeforeLockout = user.LoginAttemptsBeforeLockout ?? -1,
+                    IsAdministrator = user.HasPermission(PermissionKind.IsAdministrator),
+                    IsHidden = user.HasPermission(PermissionKind.IsHidden),
+                    IsDisabled = user.HasPermission(PermissionKind.IsDisabled),
+                    EnableSharedDeviceControl = user.HasPermission(PermissionKind.EnableSharedDeviceControl),
+                    EnableRemoteAccess = user.HasPermission(PermissionKind.EnableRemoteAccess),
+                    EnableLiveTvManagement = user.HasPermission(PermissionKind.EnableLiveTvManagement),
+                    EnableLiveTvAccess = user.HasPermission(PermissionKind.EnableLiveTvAccess),
+                    EnableMediaPlayback = user.HasPermission(PermissionKind.EnableMediaPlayback),
+                    EnableAudioPlaybackTranscoding = user.HasPermission(PermissionKind.EnableAudioPlaybackTranscoding),
+                    EnableVideoPlaybackTranscoding = user.HasPermission(PermissionKind.EnableVideoPlaybackTranscoding),
+                    EnableContentDeletion = user.HasPermission(PermissionKind.EnableContentDeletion),
+                    EnableContentDownloading = user.HasPermission(PermissionKind.EnableContentDownloading),
+                    EnableSyncTranscoding = user.HasPermission(PermissionKind.EnableSyncTranscoding),
+                    EnableMediaConversion = user.HasPermission(PermissionKind.EnableMediaConversion),
+                    EnableAllChannels = user.HasPermission(PermissionKind.EnableAllChannels),
+                    EnableAllDevices = user.HasPermission(PermissionKind.EnableAllDevices),
+                    EnableAllFolders = user.HasPermission(PermissionKind.EnableAllFolders),
+                    EnableRemoteControlOfOtherUsers = user.HasPermission(PermissionKind.EnableRemoteControlOfOtherUsers),
+                    EnablePlaybackRemuxing = user.HasPermission(PermissionKind.EnablePlaybackRemuxing),
+                    ForceRemoteSourceTranscoding = user.HasPermission(PermissionKind.ForceRemoteSourceTranscoding),
+                    EnablePublicSharing = user.HasPermission(PermissionKind.EnablePublicSharing),
+                    AccessSchedules = user.AccessSchedules.ToArray(),
+                    BlockedTags = user.GetPreference(PreferenceKind.BlockedTags),
+                    EnabledChannels = user.GetPreference(PreferenceKind.EnabledChannels),
+                    EnabledDevices = user.GetPreference(PreferenceKind.EnabledDevices),
+                    EnabledFolders = user.GetPreference(PreferenceKind.EnabledFolders),
+                    EnableContentDeletionFromFolders = user.GetPreference(PreferenceKind.EnableContentDeletionFromFolders),
+                    SyncPlayAccess = user.SyncPlayAccess,
+                    BlockedChannels = user.GetPreference(PreferenceKind.BlockedChannels),
+                    BlockedMediaFolders = user.GetPreference(PreferenceKind.BlockedMediaFolders),
+                    BlockUnratedItems = user.GetPreference(PreferenceKind.BlockUnratedItems).Select(Enum.Parse<UnratedItem>).ToArray()
+                }
+            };
+        }
+
+        /// <inheritdoc/>
+        public async Task<User?> AuthenticateUser(
+            string username,
+            string password,
+            string passwordSha1,
+            string remoteEndPoint,
+            bool isUserSession)
+        {
+            if (string.IsNullOrWhiteSpace(username))
+            {
+                _logger.LogInformation("Authentication request without username has been denied (IP: {IP}).", remoteEndPoint);
+                throw new ArgumentNullException(nameof(username));
+            }
+
+            var user = Users.ToList().FirstOrDefault(i => string.Equals(username, i.Username, StringComparison.OrdinalIgnoreCase));
+            bool success;
+            IAuthenticationProvider? authenticationProvider;
+
+            if (user != null)
+            {
+                var authResult = await AuthenticateLocalUser(username, password, user, remoteEndPoint)
+                    .ConfigureAwait(false);
+                authenticationProvider = authResult.authenticationProvider;
+                success = authResult.success;
+            }
+            else
+            {
+                var authResult = await AuthenticateLocalUser(username, password, null, remoteEndPoint)
+                    .ConfigureAwait(false);
+                authenticationProvider = authResult.authenticationProvider;
+                string updatedUsername = authResult.username;
+                success = authResult.success;
+
+                if (success
+                    && authenticationProvider != null
+                    && !(authenticationProvider is DefaultAuthenticationProvider))
+                {
+                    // Trust the username returned by the authentication provider
+                    username = updatedUsername;
+
+                    // Search the database for the user again
+                    // the authentication provider might have created it
+                    user = Users
+                        .ToList().FirstOrDefault(i => string.Equals(username, i.Username, StringComparison.OrdinalIgnoreCase));
+
+                    if (authenticationProvider is IHasNewUserPolicy hasNewUserPolicy)
+                    {
+                        UpdatePolicy(user.Id, hasNewUserPolicy.GetNewUserPolicy());
+
+                        await UpdateUserAsync(user).ConfigureAwait(false);
+                    }
+                }
+            }
+
+            if (success && user != null && authenticationProvider != null)
+            {
+                var providerId = authenticationProvider.GetType().FullName;
+
+                if (!string.Equals(providerId, user.AuthenticationProviderId, StringComparison.OrdinalIgnoreCase))
+                {
+                    user.AuthenticationProviderId = providerId;
+                    await UpdateUserAsync(user).ConfigureAwait(false);
+                }
+            }
+
+            if (user == null)
+            {
+                _logger.LogInformation(
+                    "Authentication request for {UserName} has been denied (IP: {IP}).",
+                    username,
+                    remoteEndPoint);
+                throw new AuthenticationException("Invalid username or password entered.");
+            }
+
+            if (user.HasPermission(PermissionKind.IsDisabled))
+            {
+                _logger.LogInformation(
+                    "Authentication request for {UserName} has been denied because this account is currently disabled (IP: {IP}).",
+                    username,
+                    remoteEndPoint);
+                throw new SecurityException(
+                    $"The {user.Username} account is currently disabled. Please consult with your administrator.");
+            }
+
+            if (!user.HasPermission(PermissionKind.EnableRemoteAccess) &&
+                !_networkManager.IsInLocalNetwork(remoteEndPoint))
+            {
+                _logger.LogInformation(
+                    "Authentication request for {UserName} forbidden: remote access disabled and user not in local network (IP: {IP}).",
+                    username,
+                    remoteEndPoint);
+                throw new SecurityException("Forbidden.");
+            }
+
+            if (!user.IsParentalScheduleAllowed())
+            {
+                _logger.LogInformation(
+                    "Authentication request for {UserName} is not allowed at this time due parental restrictions (IP: {IP}).",
+                    username,
+                    remoteEndPoint);
+                throw new SecurityException("User is not allowed access at this time.");
+            }
+
+            // Update LastActivityDate and LastLoginDate, then save
+            if (success)
+            {
+                if (isUserSession)
+                {
+                    user.LastActivityDate = user.LastLoginDate = DateTime.UtcNow;
+                }
+
+                user.InvalidLoginAttemptCount = 0;
+                await UpdateUserAsync(user).ConfigureAwait(false);
+                _logger.LogInformation("Authentication request for {UserName} has succeeded.", user.Username);
+            }
+            else
+            {
+                IncrementInvalidLoginAttemptCount(user);
+                _logger.LogInformation(
+                    "Authentication request for {UserName} has been denied (IP: {IP}).",
+                    user.Username,
+                    remoteEndPoint);
+            }
+
+            return success ? user : null;
+        }
+
+        /// <inheritdoc/>
+        public async Task<ForgotPasswordResult> StartForgotPasswordProcess(string enteredUsername, bool isInNetwork)
+        {
+            var user = string.IsNullOrWhiteSpace(enteredUsername) ? null : GetUserByName(enteredUsername);
+
+            if (user != null && isInNetwork)
+            {
+                var passwordResetProvider = GetPasswordResetProvider(user);
+                return await passwordResetProvider.StartForgotPasswordProcess(user, isInNetwork).ConfigureAwait(false);
+            }
+
+            return new ForgotPasswordResult
+            {
+                Action = ForgotPasswordAction.InNetworkRequired,
+                PinFile = string.Empty
+            };
+        }
+
+        /// <inheritdoc/>
+        public async Task<PinRedeemResult> RedeemPasswordResetPin(string pin)
+        {
+            foreach (var provider in _passwordResetProviders)
+            {
+                var result = await provider.RedeemPasswordResetPin(pin).ConfigureAwait(false);
+
+                if (result.Success)
+                {
+                    return result;
+                }
+            }
+
+            return new PinRedeemResult
+            {
+                Success = false,
+                UsersReset = Array.Empty<string>()
+            };
+        }
+
+        /// <inheritdoc/>
+        public void AddParts(IEnumerable<IAuthenticationProvider> authenticationProviders, IEnumerable<IPasswordResetProvider> passwordResetProviders)
+        {
+            _authenticationProviders = authenticationProviders.ToArray();
+            _passwordResetProviders = passwordResetProviders.ToArray();
+
+            _invalidAuthProvider = _authenticationProviders.OfType<InvalidAuthProvider>().First();
+            _defaultAuthenticationProvider = _authenticationProviders.OfType<DefaultAuthenticationProvider>().First();
+            _defaultPasswordResetProvider = _passwordResetProviders.OfType<DefaultPasswordResetProvider>().First();
+        }
+
+        /// <inheritdoc />
+        public void Initialize()
+        {
+            // TODO: Refactor the startup wizard so that it doesn't require a user to already exist.
+            var dbContext = _dbProvider.CreateContext();
+
+            if (dbContext.Users.Any())
+            {
+                return;
+            }
+
+            var defaultName = Environment.UserName;
+            if (string.IsNullOrWhiteSpace(defaultName))
+            {
+                defaultName = "MyJellyfinUser";
+            }
+
+            _logger.LogWarning("No users, creating one with username {UserName}", defaultName);
+
+            if (!IsValidUsername(defaultName))
+            {
+                throw new ArgumentException("Provided username is not valid!", defaultName);
+            }
+
+            var newUser = CreateUser(defaultName);
+            newUser.SetPermission(PermissionKind.IsAdministrator, true);
+            newUser.SetPermission(PermissionKind.EnableContentDeletion, true);
+            newUser.SetPermission(PermissionKind.EnableRemoteControlOfOtherUsers, true);
+
+            dbContext.Users.Update(newUser);
+            dbContext.SaveChanges();
+        }
+
+        /// <inheritdoc/>
+        public NameIdPair[] GetAuthenticationProviders()
+        {
+            return _authenticationProviders
+                .Where(provider => provider.IsEnabled)
+                .OrderBy(i => i is DefaultAuthenticationProvider ? 0 : 1)
+                .ThenBy(i => i.Name)
+                .Select(i => new NameIdPair
+                {
+                    Name = i.Name,
+                    Id = i.GetType().FullName
+                })
+                .ToArray();
+        }
+
+        /// <inheritdoc/>
+        public NameIdPair[] GetPasswordResetProviders()
+        {
+            return _passwordResetProviders
+                .Where(provider => provider.IsEnabled)
+                .OrderBy(i => i is DefaultPasswordResetProvider ? 0 : 1)
+                .ThenBy(i => i.Name)
+                .Select(i => new NameIdPair
+                {
+                    Name = i.Name,
+                    Id = i.GetType().FullName
+                })
+                .ToArray();
+        }
+
+        /// <inheritdoc/>
+        public void UpdateConfiguration(Guid userId, UserConfiguration config)
+        {
+            var dbContext = _dbProvider.CreateContext();
+            var user = dbContext.Users.Find(userId) ?? throw new ArgumentException("No user exists with given Id!");
+            user.SubtitleMode = config.SubtitleMode;
+            user.HidePlayedInLatest = config.HidePlayedInLatest;
+            user.EnableLocalPassword = config.EnableLocalPassword;
+            user.PlayDefaultAudioTrack = config.PlayDefaultAudioTrack;
+            user.DisplayCollectionsView = config.DisplayCollectionsView;
+            user.DisplayMissingEpisodes = config.DisplayMissingEpisodes;
+            user.AudioLanguagePreference = config.AudioLanguagePreference;
+            user.RememberAudioSelections = config.RememberAudioSelections;
+            user.EnableNextEpisodeAutoPlay = config.EnableNextEpisodeAutoPlay;
+            user.RememberSubtitleSelections = config.RememberSubtitleSelections;
+            user.SubtitleLanguagePreference = config.SubtitleLanguagePreference;
+
+            user.SetPreference(PreferenceKind.OrderedViews, config.OrderedViews);
+            user.SetPreference(PreferenceKind.GroupedFolders, config.GroupedFolders);
+            user.SetPreference(PreferenceKind.MyMediaExcludes, config.MyMediaExcludes);
+            user.SetPreference(PreferenceKind.LatestItemExcludes, config.LatestItemsExcludes);
+
+            dbContext.Update(user);
+            dbContext.SaveChanges();
+        }
+
+        /// <inheritdoc/>
+        public void UpdatePolicy(Guid userId, UserPolicy policy)
+        {
+            var dbContext = _dbProvider.CreateContext();
+            var user = dbContext.Users.Find(userId) ?? throw new ArgumentException("No user exists with given Id!");
+
+            // The default number of login attempts is 3, but for some god forsaken reason it's sent to the server as "0"
+            int? maxLoginAttempts = policy.LoginAttemptsBeforeLockout switch
+            {
+                -1 => null,
+                0 => 3,
+                _ => policy.LoginAttemptsBeforeLockout
+            };
+
+            user.MaxParentalAgeRating = policy.MaxParentalRating;
+            user.EnableUserPreferenceAccess = policy.EnableUserPreferenceAccess;
+            user.RemoteClientBitrateLimit = policy.RemoteClientBitrateLimit;
+            user.AuthenticationProviderId = policy.AuthenticationProviderId;
+            user.PasswordResetProviderId = policy.PasswordResetProviderId;
+            user.InvalidLoginAttemptCount = policy.InvalidLoginAttemptCount;
+            user.LoginAttemptsBeforeLockout = maxLoginAttempts;
+            user.SyncPlayAccess = policy.SyncPlayAccess;
+            user.SetPermission(PermissionKind.IsAdministrator, policy.IsAdministrator);
+            user.SetPermission(PermissionKind.IsHidden, policy.IsHidden);
+            user.SetPermission(PermissionKind.IsDisabled, policy.IsDisabled);
+            user.SetPermission(PermissionKind.EnableSharedDeviceControl, policy.EnableSharedDeviceControl);
+            user.SetPermission(PermissionKind.EnableRemoteAccess, policy.EnableRemoteAccess);
+            user.SetPermission(PermissionKind.EnableLiveTvManagement, policy.EnableLiveTvManagement);
+            user.SetPermission(PermissionKind.EnableLiveTvAccess, policy.EnableLiveTvAccess);
+            user.SetPermission(PermissionKind.EnableMediaPlayback, policy.EnableMediaPlayback);
+            user.SetPermission(PermissionKind.EnableAudioPlaybackTranscoding, policy.EnableAudioPlaybackTranscoding);
+            user.SetPermission(PermissionKind.EnableVideoPlaybackTranscoding, policy.EnableVideoPlaybackTranscoding);
+            user.SetPermission(PermissionKind.EnableContentDeletion, policy.EnableContentDeletion);
+            user.SetPermission(PermissionKind.EnableContentDownloading, policy.EnableContentDownloading);
+            user.SetPermission(PermissionKind.EnableSyncTranscoding, policy.EnableSyncTranscoding);
+            user.SetPermission(PermissionKind.EnableMediaConversion, policy.EnableMediaConversion);
+            user.SetPermission(PermissionKind.EnableAllChannels, policy.EnableAllChannels);
+            user.SetPermission(PermissionKind.EnableAllDevices, policy.EnableAllDevices);
+            user.SetPermission(PermissionKind.EnableAllFolders, policy.EnableAllFolders);
+            user.SetPermission(PermissionKind.EnableRemoteControlOfOtherUsers, policy.EnableRemoteControlOfOtherUsers);
+            user.SetPermission(PermissionKind.EnablePlaybackRemuxing, policy.EnablePlaybackRemuxing);
+            user.SetPermission(PermissionKind.ForceRemoteSourceTranscoding, policy.ForceRemoteSourceTranscoding);
+            user.SetPermission(PermissionKind.EnablePublicSharing, policy.EnablePublicSharing);
+
+            user.AccessSchedules.Clear();
+            foreach (var policyAccessSchedule in policy.AccessSchedules)
+            {
+                user.AccessSchedules.Add(policyAccessSchedule);
+            }
+
+            // TODO: fix this at some point
+            user.SetPreference(
+                PreferenceKind.BlockUnratedItems,
+                policy.BlockUnratedItems?.Select(i => i.ToString()).ToArray() ?? Array.Empty<string>());
+            user.SetPreference(PreferenceKind.BlockedTags, policy.BlockedTags);
+            user.SetPreference(PreferenceKind.EnabledChannels, policy.EnabledChannels);
+            user.SetPreference(PreferenceKind.EnabledDevices, policy.EnabledDevices);
+            user.SetPreference(PreferenceKind.EnabledFolders, policy.EnabledFolders);
+            user.SetPreference(PreferenceKind.EnableContentDeletionFromFolders, policy.EnableContentDeletionFromFolders);
+
+            dbContext.Update(user);
+            dbContext.SaveChanges();
+        }
+
+        /// <inheritdoc/>
+        public void ClearProfileImage(User user)
+        {
+            var dbContext = _dbProvider.CreateContext();
+            dbContext.Remove(user.ProfileImage);
+            dbContext.SaveChanges();
+        }
+
+        private static bool IsValidUsername(string name)
+        {
+            // This is some regex that matches only on unicode "word" characters, as well as -, _ and @
+            // In theory this will cut out most if not all 'control' characters which should help minimize any weirdness
+            // Usernames can contain letters (a-z + whatever else unicode is cool with), numbers (0-9), at-signs (@), dashes (-), underscores (_), apostrophes ('), and periods (.)
+            return Regex.IsMatch(name, @"^[\w\-'._@]*$");
+        }
+
+        private IAuthenticationProvider GetAuthenticationProvider(User user)
+        {
+            return GetAuthenticationProviders(user)[0];
+        }
+
+        private IPasswordResetProvider GetPasswordResetProvider(User user)
+        {
+            return GetPasswordResetProviders(user)[0];
+        }
+
+        private IList<IAuthenticationProvider> GetAuthenticationProviders(User? user)
+        {
+            var authenticationProviderId = user?.AuthenticationProviderId;
+
+            var providers = _authenticationProviders.Where(i => i.IsEnabled).ToList();
+
+            if (!string.IsNullOrEmpty(authenticationProviderId))
+            {
+                providers = providers.Where(i => string.Equals(authenticationProviderId, i.GetType().FullName, StringComparison.OrdinalIgnoreCase)).ToList();
+            }
+
+            if (providers.Count == 0)
+            {
+                // Assign the user to the InvalidAuthProvider since no configured auth provider was valid/found
+                _logger.LogWarning(
+                    "User {Username} was found with invalid/missing Authentication Provider {AuthenticationProviderId}. Assigning user to InvalidAuthProvider until this is corrected",
+                    user?.Username,
+                    user?.AuthenticationProviderId);
+                providers = new List<IAuthenticationProvider>
+                {
+                    _invalidAuthProvider
+                };
+            }
+
+            return providers;
+        }
+
+        private IList<IPasswordResetProvider> GetPasswordResetProviders(User user)
+        {
+            var passwordResetProviderId = user?.PasswordResetProviderId;
+            var providers = _passwordResetProviders.Where(i => i.IsEnabled).ToArray();
+
+            if (!string.IsNullOrEmpty(passwordResetProviderId))
+            {
+                providers = providers.Where(i =>
+                        string.Equals(passwordResetProviderId, i.GetType().FullName, StringComparison.OrdinalIgnoreCase))
+                    .ToArray();
+            }
+
+            if (providers.Length == 0)
+            {
+                providers = new IPasswordResetProvider[]
+                {
+                    _defaultPasswordResetProvider
+                };
+            }
+
+            return providers;
+        }
+
+        private async Task<(IAuthenticationProvider? authenticationProvider, string username, bool success)> AuthenticateLocalUser(
+                string username,
+                string password,
+                User? user,
+                string remoteEndPoint)
+        {
+            bool success = false;
+            IAuthenticationProvider? authenticationProvider = null;
+
+            foreach (var provider in GetAuthenticationProviders(user))
+            {
+                var providerAuthResult =
+                    await AuthenticateWithProvider(provider, username, password, user).ConfigureAwait(false);
+                var updatedUsername = providerAuthResult.username;
+                success = providerAuthResult.success;
+
+                if (success)
+                {
+                    authenticationProvider = provider;
+                    username = updatedUsername;
+                    break;
+                }
+            }
+
+            if (!success
+                && _networkManager.IsInLocalNetwork(remoteEndPoint)
+                && user?.EnableLocalPassword == true
+                && !string.IsNullOrEmpty(user.EasyPassword))
+            {
+                // Check easy password
+                var passwordHash = PasswordHash.Parse(user.EasyPassword);
+                var hash = _cryptoProvider.ComputeHash(
+                    passwordHash.Id,
+                    Encoding.UTF8.GetBytes(password),
+                    passwordHash.Salt.ToArray());
+                success = passwordHash.Hash.SequenceEqual(hash);
+            }
+
+            return (authenticationProvider, username, success);
+        }
+
+        private async Task<(string username, bool success)> AuthenticateWithProvider(
+            IAuthenticationProvider provider,
+            string username,
+            string password,
+            User? resolvedUser)
+        {
+            try
+            {
+                var authenticationResult = provider is IRequiresResolvedUser requiresResolvedUser
+                    ? await requiresResolvedUser.Authenticate(username, password, resolvedUser).ConfigureAwait(false)
+                    : await provider.Authenticate(username, password).ConfigureAwait(false);
+
+                if (authenticationResult.Username != username)
+                {
+                    _logger.LogDebug("Authentication provider provided updated username {1}", authenticationResult.Username);
+                    username = authenticationResult.Username;
+                }
+
+                return (username, true);
+            }
+            catch (AuthenticationException ex)
+            {
+                _logger.LogError(ex, "Error authenticating with provider {Provider}", provider.Name);
+
+                return (username, false);
+            }
+        }
+
+        private void IncrementInvalidLoginAttemptCount(User user)
+        {
+            user.InvalidLoginAttemptCount++;
+            int? maxInvalidLogins = user.LoginAttemptsBeforeLockout;
+            if (maxInvalidLogins.HasValue && user.InvalidLoginAttemptCount >= maxInvalidLogins)
+            {
+                user.SetPermission(PermissionKind.IsDisabled, true);
+                OnUserLockedOut?.Invoke(this, new GenericEventArgs<User>(user));
+                _logger.LogWarning(
+                    "Disabling user {Username} due to {Attempts} unsuccessful login attempts.",
+                    user.Username,
+                    user.InvalidLoginAttemptCount);
+            }
+
+            UpdateUser(user);
+        }
+    }
+}