2014-10-29 00:17:55 +01:00
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using MediaBrowser.Controller.Configuration;
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2014-11-03 04:38:43 +01:00
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using MediaBrowser.Controller.Connect;
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2014-12-29 21:18:48 +01:00
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using MediaBrowser.Controller.Devices;
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2014-11-15 03:31:03 +01:00
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using MediaBrowser.Controller.Entities;
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2014-07-02 07:16:59 +02:00
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Net;
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2014-11-15 03:31:03 +01:00
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using MediaBrowser.Controller.Security;
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2014-11-15 16:51:49 +01:00
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using MediaBrowser.Controller.Session;
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2014-07-02 06:57:18 +02:00
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using System;
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2014-11-15 03:31:03 +01:00
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using System.Collections.Generic;
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2014-07-02 06:57:18 +02:00
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using System.Linq;
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2016-11-04 02:18:51 +01:00
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namespace Emby.Server.Implementations.HttpServer.Security
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2014-07-02 06:57:18 +02:00
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{
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public class AuthService : IAuthService
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{
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2014-07-08 03:41:03 +02:00
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private readonly IServerConfigurationManager _config;
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2014-12-29 21:18:48 +01:00
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public AuthService(IUserManager userManager, IAuthorizationContext authorizationContext, IServerConfigurationManager config, IConnectManager connectManager, ISessionManager sessionManager, IDeviceManager deviceManager)
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{
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AuthorizationContext = authorizationContext;
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2014-07-08 03:41:03 +02:00
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_config = config;
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2014-12-29 21:18:48 +01:00
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DeviceManager = deviceManager;
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2014-11-15 16:51:49 +01:00
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SessionManager = sessionManager;
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2014-11-03 04:38:43 +01:00
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ConnectManager = connectManager;
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2014-07-02 07:16:59 +02:00
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UserManager = userManager;
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}
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public IUserManager UserManager { get; private set; }
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public IAuthorizationContext AuthorizationContext { get; private set; }
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public IConnectManager ConnectManager { get; private set; }
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2014-11-15 16:51:49 +01:00
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public ISessionManager SessionManager { get; private set; }
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2014-12-29 21:18:48 +01:00
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public IDeviceManager DeviceManager { get; private set; }
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2014-07-02 07:16:59 +02:00
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2014-07-02 06:57:18 +02:00
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/// <summary>
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/// Redirect the client to a specific URL if authentication failed.
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/// If this property is null, simply `401 Unauthorized` is returned.
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/// </summary>
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public string HtmlRedirect { get; set; }
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2014-11-15 03:31:03 +01:00
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public void Authenticate(IServiceRequest request,
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IAuthenticationAttributes authAttribtues)
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{
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ValidateUser(request, authAttribtues);
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2014-07-02 06:57:18 +02:00
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}
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2014-11-15 03:31:03 +01:00
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private void ValidateUser(IServiceRequest request,
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IAuthenticationAttributes authAttribtues)
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{
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2014-10-07 01:58:46 +02:00
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// This code is executed before the service
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var auth = AuthorizationContext.GetAuthorizationInfo(request);
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2014-07-02 07:16:59 +02:00
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2014-11-15 03:31:03 +01:00
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if (!IsExemptFromAuthenticationToken(auth, authAttribtues))
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2014-07-02 07:16:59 +02:00
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{
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2014-11-09 04:18:14 +01:00
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var valid = IsValidConnectKey(auth.Token);
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2014-11-03 04:38:43 +01:00
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2014-11-09 04:18:14 +01:00
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if (!valid)
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{
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2014-11-15 03:31:03 +01:00
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ValidateSecurityToken(request, auth.Token);
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2014-08-31 21:15:33 +02:00
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}
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2014-07-08 03:41:03 +02:00
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}
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2014-07-02 07:16:59 +02:00
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2014-07-08 03:41:03 +02:00
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var user = string.IsNullOrWhiteSpace(auth.UserId)
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? null
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2014-09-14 17:10:51 +02:00
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: UserManager.GetUserById(auth.UserId);
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2014-07-15 03:25:58 +02:00
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if (user == null & !string.IsNullOrWhiteSpace(auth.UserId))
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{
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throw new SecurityException("User with Id " + auth.UserId + " not found");
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}
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2014-10-15 02:05:09 +02:00
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if (user != null)
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{
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2014-12-29 21:18:48 +01:00
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ValidateUserAccess(user, request, authAttribtues, auth);
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2014-07-02 07:16:59 +02:00
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}
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2014-07-08 03:41:03 +02:00
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2015-02-07 04:25:23 +01:00
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var info = GetTokenInfo(request);
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2015-02-06 06:39:07 +01:00
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if (!IsExemptFromRoles(auth, authAttribtues, info))
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{
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var roles = authAttribtues.GetRoles().ToList();
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ValidateRoles(roles, user);
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}
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2014-11-15 16:51:49 +01:00
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if (!string.IsNullOrWhiteSpace(auth.DeviceId) &&
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!string.IsNullOrWhiteSpace(auth.Client) &&
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!string.IsNullOrWhiteSpace(auth.Device))
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{
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SessionManager.LogSessionActivity(auth.Client,
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auth.Version,
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auth.DeviceId,
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auth.Device,
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request.RemoteIp,
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user);
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}
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2014-11-15 03:31:03 +01:00
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}
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2014-12-29 21:18:48 +01:00
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private void ValidateUserAccess(User user, IServiceRequest request,
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IAuthenticationAttributes authAttribtues,
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AuthorizationInfo auth)
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{
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if (user.Policy.IsDisabled)
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{
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throw new SecurityException("User account has been disabled.")
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{
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SecurityExceptionType = SecurityExceptionType.Unauthenticated
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};
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}
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if (!user.Policy.IsAdministrator &&
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!authAttribtues.EscapeParentalControl &&
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!user.IsParentalScheduleAllowed())
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{
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request.AddResponseHeader("X-Application-Error-Code", "ParentalControl");
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throw new SecurityException("This user account is not allowed access at this time.")
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{
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SecurityExceptionType = SecurityExceptionType.ParentalControl
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};
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}
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if (!string.IsNullOrWhiteSpace(auth.DeviceId))
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{
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if (!DeviceManager.CanAccessDevice(user.Id.ToString("N"), auth.DeviceId))
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{
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throw new SecurityException("User is not allowed access from this device.")
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{
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SecurityExceptionType = SecurityExceptionType.ParentalControl
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};
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}
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}
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}
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2014-11-15 03:31:03 +01:00
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private bool IsExemptFromAuthenticationToken(AuthorizationInfo auth, IAuthenticationAttributes authAttribtues)
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{
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2016-02-18 19:27:46 +01:00
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if (!_config.Configuration.IsStartupWizardCompleted && authAttribtues.AllowBeforeStartupWizard)
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2014-11-15 03:31:03 +01:00
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{
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return true;
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}
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2016-02-18 19:27:46 +01:00
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return false;
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2014-11-15 03:31:03 +01:00
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}
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2015-02-06 06:39:07 +01:00
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private bool IsExemptFromRoles(AuthorizationInfo auth, IAuthenticationAttributes authAttribtues, AuthenticationInfo tokenInfo)
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{
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2016-02-18 19:27:46 +01:00
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if (!_config.Configuration.IsStartupWizardCompleted && authAttribtues.AllowBeforeStartupWizard)
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{
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return true;
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}
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2015-02-06 06:39:07 +01:00
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if (string.IsNullOrWhiteSpace(auth.Token))
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{
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return true;
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}
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if (tokenInfo != null && string.IsNullOrWhiteSpace(tokenInfo.UserId))
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{
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return true;
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}
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2014-11-15 03:31:03 +01:00
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return false;
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}
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2014-10-29 00:17:55 +01:00
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2014-11-15 03:31:03 +01:00
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private void ValidateRoles(List<string> roles, User user)
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{
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2014-09-14 19:42:23 +02:00
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if (roles.Contains("admin", StringComparer.OrdinalIgnoreCase))
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{
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2014-12-20 07:06:27 +01:00
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if (user == null || !user.Policy.IsAdministrator)
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2014-09-14 19:42:23 +02:00
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{
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2014-11-15 03:31:03 +01:00
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throw new SecurityException("User does not have admin access.")
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{
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SecurityExceptionType = SecurityExceptionType.Unauthenticated
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};
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2014-09-14 19:42:23 +02:00
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}
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}
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2014-11-15 03:31:03 +01:00
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if (roles.Contains("delete", StringComparer.OrdinalIgnoreCase))
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2014-07-02 06:57:18 +02:00
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{
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2014-12-20 07:06:27 +01:00
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if (user == null || !user.Policy.EnableContentDeletion)
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2014-11-15 03:31:03 +01:00
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{
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throw new SecurityException("User does not have delete access.")
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{
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SecurityExceptionType = SecurityExceptionType.Unauthenticated
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};
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}
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2014-07-02 06:57:18 +02:00
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}
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2015-02-06 06:39:07 +01:00
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if (roles.Contains("download", StringComparer.OrdinalIgnoreCase))
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{
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if (user == null || !user.Policy.EnableContentDownloading)
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{
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throw new SecurityException("User does not have download access.")
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{
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SecurityExceptionType = SecurityExceptionType.Unauthenticated
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};
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}
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}
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2014-07-02 06:57:18 +02:00
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}
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2015-02-07 04:25:23 +01:00
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private AuthenticationInfo GetTokenInfo(IServiceRequest request)
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{
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object info;
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request.Items.TryGetValue("OriginalAuthenticationInfo", out info);
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return info as AuthenticationInfo;
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}
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2014-10-18 21:02:54 +02:00
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private bool IsValidConnectKey(string token)
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{
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2014-11-03 04:38:43 +01:00
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if (string.IsNullOrEmpty(token))
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2014-10-18 21:02:54 +02:00
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{
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2014-11-03 04:38:43 +01:00
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return false;
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2014-10-18 21:02:54 +02:00
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}
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2014-11-03 04:38:43 +01:00
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return ConnectManager.IsAuthorizationTokenValid(token);
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2014-10-18 21:02:54 +02:00
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}
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2014-11-15 03:31:03 +01:00
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private void ValidateSecurityToken(IServiceRequest request, string token)
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2014-07-02 06:57:18 +02:00
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{
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2014-11-15 03:31:03 +01:00
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if (string.IsNullOrWhiteSpace(token))
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2014-07-02 06:57:18 +02:00
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{
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2015-10-05 00:04:56 +02:00
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throw new SecurityException("Access token is required.");
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2014-07-02 06:57:18 +02:00
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}
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2015-02-07 04:25:23 +01:00
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var info = GetTokenInfo(request);
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2014-11-15 03:31:03 +01:00
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if (info == null)
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2014-07-02 06:57:18 +02:00
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{
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2014-11-15 03:31:03 +01:00
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throw new SecurityException("Access token is invalid or expired.");
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2014-07-02 06:57:18 +02:00
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}
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2014-11-15 03:31:03 +01:00
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if (!info.IsActive)
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{
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throw new SecurityException("Access token has expired.");
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}
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2014-07-02 06:57:18 +02:00
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2014-11-15 03:31:03 +01:00
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//if (!string.IsNullOrWhiteSpace(info.UserId))
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//{
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// var user = _userManager.GetUserById(info.UserId);
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2014-07-02 06:57:18 +02:00
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2014-11-15 03:31:03 +01:00
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// if (user == null || user.Configuration.IsDisabled)
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// {
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// throw new SecurityException("User account has been disabled.");
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// }
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//}
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2014-07-02 06:57:18 +02:00
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}
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}
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}
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