Lieb-Website/Lieb/DiscordOAuth2/DiscordHandler.cs
2022-02-22 01:06:41 +01:00

52 lines
2.3 KiB
C#

using Lieb.Data;
using Lieb.Models;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.OAuth;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Options;
using System.Net.Http.Headers;
using System.Security.Claims;
using System.Text.Encodings.Web;
using System.Text.Json;
namespace Discord.OAuth2
{
internal class DiscordHandler : OAuthHandler<DiscordOptions>
{
private readonly Lieb.Data.LiebContext _LiebDbcontext;
public DiscordHandler(IOptionsMonitor<DiscordOptions> options, ILoggerFactory logger, UrlEncoder encoder, ISystemClock clock, Lieb.Data.LiebContext context)
: base(options, logger, encoder, clock)
{
_LiebDbcontext = context;
}
protected override async Task<AuthenticationTicket> CreateTicketAsync(ClaimsIdentity identity, AuthenticationProperties properties, OAuthTokenResponse tokens)
{
var request = new HttpRequestMessage(HttpMethod.Get, Options.UserInformationEndpoint);
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", tokens.AccessToken);
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var response = await Backchannel.SendAsync(request, Context.RequestAborted);
if (!response.IsSuccessStatusCode)
throw new HttpRequestException($"Failed to retrieve Discord user information ({response.StatusCode}).");
var payload = JsonDocument.Parse(await response.Content.ReadAsStringAsync());
var context = new OAuthCreatingTicketContext(new ClaimsPrincipal(identity), properties, Context, Scheme, Options, Backchannel, tokens, payload.RootElement);
context.RunClaimActions();
await Events.CreatingTicket(context);
LiebUser? user = await _LiebDbcontext.LiebUsers.Include(u => u.Roles).FirstOrDefaultAsync(m => m.DiscordUserId == 1);
if (user != null)
{
foreach (UserRole role in user.Roles)
{
context.Identity.AddClaim(new Claim(Constants.ClaimType, role.RoleName));
}
}
return new AuthenticationTicket(context.Principal, context.Properties, Scheme.Name);
}
}
}