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using System.Globalization;
using System.Security.Claims;
using System.Text.Encodings.Web;
using System.Threading.Tasks;
using Jellyfin.Api.Constants;
using Jellyfin.Data;
using Jellyfin.Data.Enums;
using MediaBrowser.Controller.Authentication;
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;
private readonly ILogger<CustomAuthenticationHandler> _logger;
/// <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>
public CustomAuthenticationHandler(
IAuthService authService,
IOptionsMonitor<AuthenticationSchemeOptions> options,
ILoggerFactory logger,
UrlEncoder encoder)
: base(options, logger, encoder)
{
_authService = authService;
_logger = logger.CreateLogger<CustomAuthenticationHandler>();
}
/// <inheritdoc />
protected override async Task<AuthenticateResult> HandleAuthenticateAsync()
{
try
{
var authorizationInfo = await _authService.Authenticate(Request).ConfigureAwait(false);
if (!authorizationInfo.HasToken)
{
return AuthenticateResult.NoResult();
}
var role = UserRoles.User;
if (authorizationInfo.IsApiKey || authorizationInfo.User.HasPermission(PermissionKind.IsAdministrator))
{
role = UserRoles.Administrator;
}
var claims = new[]
{
new Claim(ClaimTypes.Name, authorizationInfo.User.Username),
new Claim(ClaimTypes.Role, role),
new Claim(InternalClaimTypes.UserId, authorizationInfo.UserId.ToString("N", CultureInfo.InvariantCulture)),
new Claim(InternalClaimTypes.DeviceId, authorizationInfo.DeviceId),
new Claim(InternalClaimTypes.Device, authorizationInfo.Device),
new Claim(InternalClaimTypes.Client, authorizationInfo.Client),
new Claim(InternalClaimTypes.Version, authorizationInfo.Version),
new Claim(InternalClaimTypes.Token, authorizationInfo.Token),
new Claim(InternalClaimTypes.IsApiKey, authorizationInfo.IsApiKey.ToString(CultureInfo.InvariantCulture))
};
var identity = new ClaimsIdentity(claims, Scheme.Name);
var principal = new ClaimsPrincipal(identity);
var ticket = new AuthenticationTicket(principal, Scheme.Name);
return AuthenticateResult.Success(ticket);
}
catch (AuthenticationException ex)
{
_logger.LogDebug(ex, "Error authenticating with {Handler}", nameof(CustomAuthenticationHandler));
return AuthenticateResult.NoResult();
}
catch (SecurityException ex)
{
return AuthenticateResult.Fail(ex);
}
}
}
}
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