jellyfin-server/Jellyfin.Api/Auth/CustomAuthenticationHandler.cs
2020-06-13 13:03:09 -06:00

81 lines
3.0 KiB
C#

using System.Security.Authentication;
using System.Security.Claims;
using System.Text.Encodings.Web;
using System.Threading.Tasks;
using Jellyfin.Api.Constants;
using MediaBrowser.Controller.Net;
using Microsoft.AspNetCore.Authentication;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
namespace Jellyfin.Api.Auth
{
/// <summary>
/// Custom authentication handler wrapping the legacy authentication.
/// </summary>
public class CustomAuthenticationHandler : AuthenticationHandler<AuthenticationSchemeOptions>
{
private readonly IAuthService _authService;
/// <summary>
/// Initializes a new instance of the <see cref="CustomAuthenticationHandler" /> class.
/// </summary>
/// <param name="authService">The jellyfin authentication service.</param>
/// <param name="options">Options monitor.</param>
/// <param name="logger">The logger.</param>
/// <param name="encoder">The url encoder.</param>
/// <param name="clock">The system clock.</param>
public CustomAuthenticationHandler(
IAuthService authService,
IOptionsMonitor<AuthenticationSchemeOptions> options,
ILoggerFactory logger,
UrlEncoder encoder,
ISystemClock clock) : base(options, logger, encoder, clock)
{
_authService = authService;
}
/// <inheritdoc />
protected override Task<AuthenticateResult> HandleAuthenticateAsync()
{
var authenticatedAttribute = new AuthenticatedAttribute
{
IgnoreLegacyAuth = true
};
try
{
var user = _authService.Authenticate(Request, authenticatedAttribute);
if (user == null)
{
return Task.FromResult(AuthenticateResult.NoResult());
// TODO return when legacy API is removed.
// Don't spam the log with "Invalid User"
// return Task.FromResult(AuthenticateResult.Fail("Invalid user"));
}
var claims = new[]
{
new Claim(ClaimTypes.Name, user.Name),
new Claim(
ClaimTypes.Role,
value: user.Policy.IsAdministrator ? UserRoles.Administrator : UserRoles.User)
};
var identity = new ClaimsIdentity(claims, Scheme.Name);
var principal = new ClaimsPrincipal(identity);
var ticket = new AuthenticationTicket(principal, Scheme.Name);
return Task.FromResult(AuthenticateResult.Success(ticket));
}
catch (AuthenticationException ex)
{
return Task.FromResult(AuthenticateResult.Fail(ex));
}
catch (SecurityException ex)
{
return Task.FromResult(AuthenticateResult.Fail(ex));
}
}
}
}