using MediaBrowser.Common.Events;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.IO;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Channels;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Connect;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Net;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Channels;
using MediaBrowser.Model.Configuration;
using MediaBrowser.Model.Connect;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Events;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Querying;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Model.Users;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.Library
{
///
/// Class UserManager
///
public class UserManager : IUserManager
{
///
/// Gets the users.
///
/// The users.
public IEnumerable Users { get; private set; }
///
/// The _logger
///
private readonly ILogger _logger;
///
/// Gets or sets the configuration manager.
///
/// The configuration manager.
private IServerConfigurationManager ConfigurationManager { get; set; }
///
/// Gets the active user repository
///
/// The user repository.
private IUserRepository UserRepository { get; set; }
public event EventHandler> UserPasswordChanged;
private readonly IXmlSerializer _xmlSerializer;
private readonly IJsonSerializer _jsonSerializer;
private readonly INetworkManager _networkManager;
private readonly Func _imageProcessorFactory;
private readonly Func _dtoServiceFactory;
private readonly Func _connectFactory;
private readonly Func _channelManager;
private readonly IServerApplicationHost _appHost;
private readonly IFileSystem _fileSystem;
public UserManager(ILogger logger, IServerConfigurationManager configurationManager, IUserRepository userRepository, IXmlSerializer xmlSerializer, INetworkManager networkManager, Func imageProcessorFactory, Func dtoServiceFactory, Func connectFactory, IServerApplicationHost appHost, IJsonSerializer jsonSerializer, IFileSystem fileSystem, Func channelManager)
{
_logger = logger;
UserRepository = userRepository;
_xmlSerializer = xmlSerializer;
_networkManager = networkManager;
_imageProcessorFactory = imageProcessorFactory;
_dtoServiceFactory = dtoServiceFactory;
_connectFactory = connectFactory;
_appHost = appHost;
_jsonSerializer = jsonSerializer;
_fileSystem = fileSystem;
_channelManager = channelManager;
ConfigurationManager = configurationManager;
Users = new List();
DeletePinFile();
}
#region UserUpdated Event
///
/// Occurs when [user updated].
///
public event EventHandler> UserUpdated;
public event EventHandler> UserConfigurationUpdated;
///
/// Called when [user updated].
///
/// The user.
private void OnUserUpdated(User user)
{
EventHelper.FireEventIfNotNull(UserUpdated, this, new GenericEventArgs { Argument = user }, _logger);
}
#endregion
#region UserDeleted Event
///
/// Occurs when [user deleted].
///
public event EventHandler> UserDeleted;
///
/// Called when [user deleted].
///
/// The user.
private void OnUserDeleted(User user)
{
EventHelper.QueueEventIfNotNull(UserDeleted, this, new GenericEventArgs { Argument = user }, _logger);
}
#endregion
///
/// Gets a User by Id
///
/// The id.
/// User.
///
public User GetUserById(Guid id)
{
if (id == Guid.Empty)
{
throw new ArgumentNullException("id");
}
return Users.FirstOrDefault(u => u.Id == id);
}
///
/// Gets the user by identifier.
///
/// The identifier.
/// User.
public User GetUserById(string id)
{
return GetUserById(new Guid(id));
}
public User GetUserByName(string name)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException("name");
}
return Users.FirstOrDefault(u => string.Equals(u.Name, name, StringComparison.OrdinalIgnoreCase));
}
public async Task Initialize()
{
Users = await LoadUsers().ConfigureAwait(false);
var users = Users.ToList();
foreach (var user in users)
{
await DoPolicyMigration(user).ConfigureAwait(false);
await DoChannelMigration(user).ConfigureAwait(false);
}
// If there are no local users with admin rights, make them all admins
if (!users.Any(i => i.Policy.IsAdministrator))
{
foreach (var user in users)
{
if (!user.ConnectLinkType.HasValue || user.ConnectLinkType.Value == UserLinkType.LinkedUser)
{
user.Policy.IsAdministrator = true;
await UpdateUserPolicy(user, user.Policy, false).ConfigureAwait(false);
}
}
}
}
public Task AuthenticateUser(string username, string passwordSha1, string remoteEndPoint)
{
return AuthenticateUser(username, passwordSha1, null, remoteEndPoint);
}
public bool IsValidUsername(string username)
{
// Usernames can contain letters (a-z), numbers (0-9), dashes (-), underscores (_), apostrophes ('), and periods (.)
return username.All(IsValidCharacter);
}
private bool IsValidCharacter(char i)
{
return char.IsLetterOrDigit(i) || char.Equals(i, '-') || char.Equals(i, '_') || char.Equals(i, '\'') ||
char.Equals(i, '.');
}
public string MakeValidUsername(string username)
{
if (IsValidUsername(username))
{
return username;
}
// Usernames can contain letters (a-z), numbers (0-9), dashes (-), underscores (_), apostrophes ('), and periods (.)
var builder = new StringBuilder();
foreach (var c in username)
{
if (IsValidCharacter(c))
{
builder.Append(c);
}
}
return builder.ToString();
}
public async Task AuthenticateUser(string username, string passwordSha1, string passwordMd5, string remoteEndPoint)
{
if (string.IsNullOrWhiteSpace(username))
{
throw new ArgumentNullException("username");
}
var user = Users
.FirstOrDefault(i => string.Equals(username, i.Name, StringComparison.OrdinalIgnoreCase));
if (user == null)
{
throw new SecurityException("Invalid username or password entered.");
}
if (user.Policy.IsDisabled)
{
throw new SecurityException(string.Format("The {0} account is currently disabled. Please consult with your administrator.", user.Name));
}
var success = false;
// Authenticate using local credentials if not a guest
if (!user.ConnectLinkType.HasValue || user.ConnectLinkType.Value != UserLinkType.Guest)
{
success = string.Equals(GetPasswordHash(user), passwordSha1.Replace("-", string.Empty), StringComparison.OrdinalIgnoreCase);
if (!success && _networkManager.IsInLocalNetwork(remoteEndPoint) && user.Configuration.EnableLocalPassword)
{
success = string.Equals(GetLocalPasswordHash(user), passwordSha1.Replace("-", string.Empty), StringComparison.OrdinalIgnoreCase);
}
}
// Update LastActivityDate and LastLoginDate, then save
if (success)
{
user.LastActivityDate = user.LastLoginDate = DateTime.UtcNow;
await UpdateUser(user).ConfigureAwait(false);
}
_logger.Info("Authentication request for {0} {1}.", user.Name, (success ? "has succeeded" : "has been denied"));
return success;
}
private string GetPasswordHash(User user)
{
return string.IsNullOrEmpty(user.Password)
? GetSha1String(string.Empty)
: user.Password;
}
private string GetLocalPasswordHash(User user)
{
return string.IsNullOrEmpty(user.LocalPassword)
? GetSha1String(string.Empty)
: user.LocalPassword;
}
private bool IsPasswordEmpty(string passwordHash)
{
return string.Equals(passwordHash, GetSha1String(string.Empty), StringComparison.OrdinalIgnoreCase);
}
///
/// Gets the sha1 string.
///
/// The STR.
/// System.String.
private static string GetSha1String(string str)
{
using (var provider = SHA1.Create())
{
var hash = provider.ComputeHash(Encoding.UTF8.GetBytes(str));
return BitConverter.ToString(hash).Replace("-", string.Empty);
}
}
///
/// Loads the users from the repository
///
/// IEnumerable{User}.
private async Task> LoadUsers()
{
var users = UserRepository.RetrieveAllUsers().ToList();
// There always has to be at least one user.
if (users.Count == 0)
{
var name = MakeValidUsername(Environment.UserName);
var user = InstantiateNewUser(name, false);
user.DateLastSaved = DateTime.UtcNow;
await UserRepository.SaveUser(user, CancellationToken.None).ConfigureAwait(false);
users.Add(user);
user.Policy.IsAdministrator = true;
user.Policy.EnableRemoteControlOfOtherUsers = true;
await UpdateUserPolicy(user, user.Policy, false).ConfigureAwait(false);
}
return users;
}
private async Task DoPolicyMigration(User user)
{
if (!user.Configuration.HasMigratedToPolicy)
{
user.Policy.BlockUnratedItems = user.Configuration.BlockUnratedItems;
user.Policy.EnableContentDeletion = user.Configuration.EnableContentDeletion;
user.Policy.EnableLiveTvAccess = user.Configuration.EnableLiveTvAccess;
user.Policy.EnableLiveTvManagement = user.Configuration.EnableLiveTvManagement;
user.Policy.EnableMediaPlayback = user.Configuration.EnableMediaPlayback;
user.Policy.IsAdministrator = user.Configuration.IsAdministrator;
await UpdateUserPolicy(user, user.Policy, false);
user.Configuration.HasMigratedToPolicy = true;
await UpdateConfiguration(user, user.Configuration, true).ConfigureAwait(false);
}
}
private async Task DoChannelMigration(User user)
{
if (user.Policy.BlockedChannels != null)
{
if (user.Policy.BlockedChannels.Length > 0)
{
user.Policy.EnableAllChannels = false;
try
{
var channelResult = await _channelManager().GetChannelsInternal(new ChannelQuery
{
UserId = user.Id.ToString("N")
}, CancellationToken.None).ConfigureAwait(false);
user.Policy.EnabledChannels = channelResult.Items
.Select(i => i.Id.ToString("N"))
.Except(user.Policy.BlockedChannels)
.ToArray();
}
catch
{
user.Policy.EnabledChannels = new string[] { };
}
}
else
{
user.Policy.EnableAllChannels = true;
user.Policy.EnabledChannels = new string[] { };
}
user.Policy.BlockedChannels = null;
await UpdateUserPolicy(user, user.Policy, false);
}
}
public UserDto GetUserDto(User user, string remoteEndPoint = null)
{
if (user == null)
{
throw new ArgumentNullException("user");
}
var passwordHash = GetPasswordHash(user);
var hasConfiguredDefaultPassword = !IsPasswordEmpty(passwordHash);
var hasPassword = user.Configuration.EnableLocalPassword && !string.IsNullOrEmpty(remoteEndPoint) && _networkManager.IsInLocalNetwork(remoteEndPoint) ?
!IsPasswordEmpty(GetLocalPasswordHash(user)) :
hasConfiguredDefaultPassword;
var dto = new UserDto
{
Id = user.Id.ToString("N"),
Name = user.Name,
HasPassword = hasPassword,
HasConfiguredPassword = hasConfiguredDefaultPassword,
LastActivityDate = user.LastActivityDate,
LastLoginDate = user.LastLoginDate,
Configuration = user.Configuration,
ConnectLinkType = user.ConnectLinkType,
ConnectUserId = user.ConnectUserId,
ConnectUserName = user.ConnectUserName,
ServerId = _appHost.SystemId,
Policy = user.Policy
};
var image = user.GetImageInfo(ImageType.Primary, 0);
if (image != null)
{
dto.PrimaryImageTag = GetImageCacheTag(user, image);
try
{
_dtoServiceFactory().AttachPrimaryImageAspectRatio(dto, user, new List
{
ItemFields.PrimaryImageAspectRatio
});
}
catch (Exception ex)
{
// Have to use a catch-all unfortunately because some .net image methods throw plain Exceptions
_logger.ErrorException("Error generating PrimaryImageAspectRatio for {0}", ex, user.Name);
}
}
return dto;
}
private string GetImageCacheTag(BaseItem item, ItemImageInfo image)
{
try
{
return _imageProcessorFactory().GetImageCacheTag(item, image);
}
catch (Exception ex)
{
_logger.ErrorException("Error getting {0} image info for {1}", ex, image.Type, image.Path);
return null;
}
}
///
/// Refreshes metadata for each user
///
/// The cancellation token.
/// Task.
public Task RefreshUsersMetadata(CancellationToken cancellationToken)
{
var tasks = Users.Select(user => user.RefreshMetadata(new MetadataRefreshOptions(), cancellationToken)).ToList();
return Task.WhenAll(tasks);
}
///
/// Renames the user.
///
/// The user.
/// The new name.
/// Task.
/// user
///
public async Task RenameUser(User user, string newName)
{
if (user == null)
{
throw new ArgumentNullException("user");
}
if (string.IsNullOrEmpty(newName))
{
throw new ArgumentNullException("newName");
}
if (Users.Any(u => u.Id != user.Id && u.Name.Equals(newName, StringComparison.OrdinalIgnoreCase)))
{
throw new ArgumentException(string.Format("A user with the name '{0}' already exists.", newName));
}
if (user.Name.Equals(newName, StringComparison.Ordinal))
{
throw new ArgumentException("The new and old names must be different.");
}
await user.Rename(newName);
OnUserUpdated(user);
}
///
/// Updates the user.
///
/// The user.
/// user
///
public async Task UpdateUser(User user)
{
if (user == null)
{
throw new ArgumentNullException("user");
}
if (user.Id == Guid.Empty || !Users.Any(u => u.Id.Equals(user.Id)))
{
throw new ArgumentException(string.Format("User with name '{0}' and Id {1} does not exist.", user.Name, user.Id));
}
user.DateModified = DateTime.UtcNow;
user.DateLastSaved = DateTime.UtcNow;
await UserRepository.SaveUser(user, CancellationToken.None).ConfigureAwait(false);
OnUserUpdated(user);
}
public event EventHandler> UserCreated;
private readonly SemaphoreSlim _userListLock = new SemaphoreSlim(1, 1);
///
/// Creates the user.
///
/// The name.
/// User.
/// name
///
public async Task CreateUser(string name)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException("name");
}
if (!IsValidUsername(name))
{
throw new ArgumentException("Usernames can contain letters (a-z), numbers (0-9), dashes (-), underscores (_), apostrophes ('), and periods (.)");
}
if (Users.Any(u => u.Name.Equals(name, StringComparison.OrdinalIgnoreCase)))
{
throw new ArgumentException(string.Format("A user with the name '{0}' already exists.", name));
}
await _userListLock.WaitAsync(CancellationToken.None).ConfigureAwait(false);
try
{
var user = InstantiateNewUser(name, true);
var list = Users.ToList();
list.Add(user);
Users = list;
user.DateLastSaved = DateTime.UtcNow;
await UserRepository.SaveUser(user, CancellationToken.None).ConfigureAwait(false);
EventHelper.QueueEventIfNotNull(UserCreated, this, new GenericEventArgs { Argument = user }, _logger);
return user;
}
finally
{
_userListLock.Release();
}
}
///
/// Deletes the user.
///
/// The user.
/// Task.
/// user
///
public async Task DeleteUser(User user)
{
if (user == null)
{
throw new ArgumentNullException("user");
}
if (user.ConnectLinkType.HasValue)
{
await _connectFactory().RemoveConnect(user.Id.ToString("N")).ConfigureAwait(false);
}
var allUsers = Users.ToList();
if (allUsers.FirstOrDefault(u => u.Id == user.Id) == null)
{
throw new ArgumentException(string.Format("The user cannot be deleted because there is no user with the Name {0} and Id {1}.", user.Name, user.Id));
}
if (allUsers.Count == 1)
{
throw new ArgumentException(string.Format("The user '{0}' cannot be deleted because there must be at least one user in the system.", user.Name));
}
if (user.Policy.IsAdministrator && allUsers.Count(i => i.Policy.IsAdministrator) == 1)
{
throw new ArgumentException(string.Format("The user '{0}' cannot be deleted because there must be at least one admin user in the system.", user.Name));
}
await _userListLock.WaitAsync(CancellationToken.None).ConfigureAwait(false);
try
{
var configPath = GetConfigurationFilePath(user);
await UserRepository.DeleteUser(user, CancellationToken.None).ConfigureAwait(false);
try
{
_fileSystem.DeleteFile(configPath);
}
catch (IOException ex)
{
_logger.ErrorException("Error deleting file {0}", ex, configPath);
}
DeleteUserPolicy(user);
// Force this to be lazy loaded again
Users = await LoadUsers().ConfigureAwait(false);
OnUserDeleted(user);
}
finally
{
_userListLock.Release();
}
}
///
/// Resets the password by clearing it.
///
/// Task.
public Task ResetPassword(User user)
{
return ChangePassword(user, GetSha1String(string.Empty));
}
///
/// Changes the password.
///
/// The user.
/// The new password sha1.
/// Task.
///
/// user
/// or
/// newPassword
///
/// Passwords for guests cannot be changed.
public async Task ChangePassword(User user, string newPasswordSha1)
{
if (user == null)
{
throw new ArgumentNullException("user");
}
if (string.IsNullOrWhiteSpace(newPasswordSha1))
{
throw new ArgumentNullException("newPasswordSha1");
}
if (user.ConnectLinkType.HasValue && user.ConnectLinkType.Value == UserLinkType.Guest)
{
throw new ArgumentException("Passwords for guests cannot be changed.");
}
user.Password = newPasswordSha1;
await UpdateUser(user).ConfigureAwait(false);
EventHelper.FireEventIfNotNull(UserPasswordChanged, this, new GenericEventArgs(user), _logger);
}
///
/// Instantiates the new user.
///
/// The name.
/// if set to true [check identifier].
/// User.
private User InstantiateNewUser(string name, bool checkId)
{
var id = ("MBUser" + name).GetMD5();
if (checkId && Users.Select(i => i.Id).Contains(id))
{
id = Guid.NewGuid();
}
return new User
{
Name = name,
Id = id,
DateCreated = DateTime.UtcNow,
DateModified = DateTime.UtcNow,
UsesIdForConfigurationPath = true
};
}
private string PasswordResetFile
{
get { return Path.Combine(ConfigurationManager.ApplicationPaths.ProgramDataPath, "passwordreset.txt"); }
}
private string _lastPin;
private PasswordPinCreationResult _lastPasswordPinCreationResult;
private int _pinAttempts;
private PasswordPinCreationResult CreatePasswordResetPin()
{
var num = new Random().Next(1, 9999);
var path = PasswordResetFile;
var pin = num.ToString("0000", CultureInfo.InvariantCulture);
_lastPin = pin;
var time = TimeSpan.FromMinutes(5);
var expiration = DateTime.UtcNow.Add(time);
var text = new StringBuilder();
var info = _appHost.GetSystemInfo();
var localAddress = info.LocalAddress ?? string.Empty;
text.AppendLine("Use your web browser to visit:");
text.AppendLine(string.Empty);
text.AppendLine(localAddress + "/mediabrowser/web/forgotpasswordpin.html");
text.AppendLine(string.Empty);
text.AppendLine("Enter the following pin code:");
text.AppendLine(string.Empty);
text.AppendLine(pin);
text.AppendLine(string.Empty);
text.AppendLine("The pin code will expire at " + expiration.ToLocalTime().ToShortDateString() + " " + expiration.ToLocalTime().ToShortTimeString());
File.WriteAllText(path, text.ToString(), Encoding.UTF8);
var result = new PasswordPinCreationResult
{
PinFile = path,
ExpirationDate = expiration
};
_lastPasswordPinCreationResult = result;
_pinAttempts = 0;
return result;
}
public ForgotPasswordResult StartForgotPasswordProcess(string enteredUsername, bool isInNetwork)
{
DeletePinFile();
var user = string.IsNullOrWhiteSpace(enteredUsername) ?
null :
GetUserByName(enteredUsername);
if (user != null && user.ConnectLinkType.HasValue && user.ConnectLinkType.Value == UserLinkType.Guest)
{
throw new ArgumentException("Unable to process forgot password request for guests.");
}
var action = ForgotPasswordAction.InNetworkRequired;
string pinFile = null;
DateTime? expirationDate = null;
if (user != null && !user.Policy.IsAdministrator)
{
action = ForgotPasswordAction.ContactAdmin;
}
else
{
if (isInNetwork)
{
action = ForgotPasswordAction.PinCode;
}
var result = CreatePasswordResetPin();
pinFile = result.PinFile;
expirationDate = result.ExpirationDate;
}
return new ForgotPasswordResult
{
Action = action,
PinFile = pinFile,
PinExpirationDate = expirationDate
};
}
public async Task RedeemPasswordResetPin(string pin)
{
DeletePinFile();
var usersReset = new List();
var valid = !string.IsNullOrWhiteSpace(_lastPin) &&
string.Equals(_lastPin, pin, StringComparison.OrdinalIgnoreCase) &&
_lastPasswordPinCreationResult != null &&
_lastPasswordPinCreationResult.ExpirationDate > DateTime.UtcNow;
if (valid)
{
_lastPin = null;
_lastPasswordPinCreationResult = null;
var users = Users.Where(i => !i.ConnectLinkType.HasValue || i.ConnectLinkType.Value != UserLinkType.Guest)
.ToList();
foreach (var user in users)
{
await ResetPassword(user).ConfigureAwait(false);
usersReset.Add(user.Name);
}
}
else
{
_pinAttempts++;
if (_pinAttempts >= 3)
{
_lastPin = null;
_lastPasswordPinCreationResult = null;
}
}
return new PinRedeemResult
{
Success = valid,
UsersReset = usersReset.ToArray()
};
}
private void DeletePinFile()
{
try
{
_fileSystem.DeleteFile(PasswordResetFile);
}
catch
{
}
}
class PasswordPinCreationResult
{
public string PinFile { get; set; }
public DateTime ExpirationDate { get; set; }
}
public UserPolicy GetUserPolicy(User user)
{
var path = GetPolifyFilePath(user);
try
{
lock (_policySyncLock)
{
return (UserPolicy)_xmlSerializer.DeserializeFromFile(typeof(UserPolicy), path);
}
}
catch (DirectoryNotFoundException)
{
return GetDefaultPolicy(user);
}
catch (FileNotFoundException)
{
return GetDefaultPolicy(user);
}
catch (Exception ex)
{
_logger.ErrorException("Error reading policy file: {0}", ex, path);
return GetDefaultPolicy(user);
}
}
private UserPolicy GetDefaultPolicy(User user)
{
return new UserPolicy
{
EnableSync = true
};
}
private readonly object _policySyncLock = new object();
public Task UpdateUserPolicy(string userId, UserPolicy userPolicy)
{
var user = GetUserById(userId);
return UpdateUserPolicy(user, userPolicy, true);
}
private async Task UpdateUserPolicy(User user, UserPolicy userPolicy, bool fireEvent)
{
// The xml serializer will output differently if the type is not exact
if (userPolicy.GetType() != typeof(UserPolicy))
{
var json = _jsonSerializer.SerializeToString(userPolicy);
userPolicy = _jsonSerializer.DeserializeFromString(json);
}
var path = GetPolifyFilePath(user);
Directory.CreateDirectory(Path.GetDirectoryName(path));
lock (_policySyncLock)
{
_xmlSerializer.SerializeToFile(userPolicy, path);
user.Policy = userPolicy;
}
user.Configuration.IsAdministrator = user.Policy.IsAdministrator;
user.Configuration.EnableLiveTvManagement = user.Policy.EnableLiveTvManagement;
user.Configuration.EnableLiveTvAccess = user.Policy.EnableLiveTvAccess;
user.Configuration.EnableMediaPlayback = user.Policy.EnableMediaPlayback;
user.Configuration.EnableContentDeletion = user.Policy.EnableContentDeletion;
await UpdateConfiguration(user, user.Configuration, true).ConfigureAwait(false);
}
private void DeleteUserPolicy(User user)
{
var path = GetPolifyFilePath(user);
try
{
lock (_policySyncLock)
{
_fileSystem.DeleteFile(path);
}
}
catch (IOException)
{
}
catch (Exception ex)
{
_logger.ErrorException("Error deleting policy file", ex);
}
}
private string GetPolifyFilePath(User user)
{
return Path.Combine(user.ConfigurationDirectoryPath, "policy.xml");
}
private string GetConfigurationFilePath(User user)
{
return Path.Combine(user.ConfigurationDirectoryPath, "config.xml");
}
public UserConfiguration GetUserConfiguration(User user)
{
var path = GetConfigurationFilePath(user);
try
{
lock (_configSyncLock)
{
return (UserConfiguration)_xmlSerializer.DeserializeFromFile(typeof(UserConfiguration), path);
}
}
catch (DirectoryNotFoundException)
{
return new UserConfiguration();
}
catch (FileNotFoundException)
{
return new UserConfiguration();
}
catch (Exception ex)
{
_logger.ErrorException("Error reading policy file: {0}", ex, path);
return new UserConfiguration();
}
}
private readonly object _configSyncLock = new object();
public Task UpdateConfiguration(string userId, UserConfiguration config)
{
var user = GetUserById(userId);
return UpdateConfiguration(user, config, true);
}
private async Task UpdateConfiguration(User user, UserConfiguration config, bool fireEvent)
{
var path = GetConfigurationFilePath(user);
// The xml serializer will output differently if the type is not exact
if (config.GetType() != typeof(UserConfiguration))
{
var json = _jsonSerializer.SerializeToString(config);
config = _jsonSerializer.DeserializeFromString(json);
}
Directory.CreateDirectory(Path.GetDirectoryName(path));
lock (_configSyncLock)
{
_xmlSerializer.SerializeToFile(config, path);
user.Configuration = config;
}
if (fireEvent)
{
EventHelper.FireEventIfNotNull(UserConfigurationUpdated, this, new GenericEventArgs { Argument = user }, _logger);
}
}
}
}