49 lines
1.6 KiB
C#
49 lines
1.6 KiB
C#
using Blazored.LocalStorage;
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using Microsoft.AspNetCore.Components.Authorization;
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using System.Security.Claims;
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using System.IdentityModel.Tokens.Jwt;
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using GameIdeas.Shared.Constants;
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namespace GameIdeas.BlazorApp.Services;
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public class JwtAuthenticationStateProvider(ILocalStorageService localStorage) : AuthenticationStateProvider
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{
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public override async Task<AuthenticationState> GetAuthenticationStateAsync()
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{
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var savedToken = await localStorage.GetItemAsStringAsync(GlobalConstants.LS_AUTH_STORAGE_KEY);
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if (!string.IsNullOrWhiteSpace(savedToken))
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{
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try
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{
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var token = new JwtSecurityTokenHandler().ReadJwtToken(savedToken);
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return new AuthenticationState(
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new ClaimsPrincipal(new ClaimsIdentity(token.Claims, "jwt"))
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);
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}
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catch
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{
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await localStorage.RemoveItemAsync(GlobalConstants.LS_AUTH_STORAGE_KEY);
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}
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}
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return new AuthenticationState(new ClaimsPrincipal(new ClaimsIdentity()));
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}
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public async Task NotifyUserAuthenticationAsync(string token)
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{
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await localStorage.SetItemAsStringAsync(GlobalConstants.LS_AUTH_STORAGE_KEY, token);
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NotifyAuthenticationStateChanged(GetAuthenticationStateAsync());
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}
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public async Task NotifyUserLogoutAsync()
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{
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await localStorage.RemoveItemAsync(GlobalConstants.LS_AUTH_STORAGE_KEY);
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var nobody = new ClaimsPrincipal(new ClaimsIdentity());
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NotifyAuthenticationStateChanged(Task.FromResult(new AuthenticationState(nobody)));
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}
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}
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