Getting basics working

This commit is contained in:
hz
2025-08-22 23:00:38 -05:00
parent 058d514d29
commit 676d56288e
8 changed files with 280 additions and 43 deletions
+113
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using Auth.Models;
using Auth.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.IdentityModel.Tokens;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;
using System.Text;
namespace Auth.Controllers;
[ApiController]
[Route("api/[controller]")]
public class AuthController : ControllerBase
{
private readonly UserService _users;
private readonly IConfiguration _cfg;
private readonly BlacklistService _blacklist;
public AuthController(UserService users, IConfiguration cfg, BlacklistService blacklist)
{
_users = users; _cfg = cfg; _blacklist = blacklist;
}
[HttpPost("register")]
public async Task<IActionResult> Register([FromBody] RegisterRequest req)
{
if (string.IsNullOrWhiteSpace(req.Username) || string.IsNullOrWhiteSpace(req.Password))
return BadRequest("Username and password required");
if (await _users.GetByUsernameAsync(req.Username) != null)
return BadRequest("User already exists");
var hash = BCrypt.Net.BCrypt.HashPassword(req.Password);
var user = new User { Username = req.Username, PasswordHash = hash, Role = "USER", Email = req.Email };
await _users.CreateAsync(user);
return Ok("User created");
}
[HttpPost("login")]
public async Task<IActionResult> Login([FromBody] LoginRequest req)
{
var user = await _users.GetByUsernameAsync(req.Username);
if (user == null || !BCrypt.Net.BCrypt.Verify(req.Password, user.PasswordHash))
return Unauthorized();
var (accessToken, jti, expUtc) = GenerateJwtToken(user);
user.RefreshToken = Guid.NewGuid().ToString("N");
user.RefreshTokenExpiry = DateTime.UtcNow.AddDays(7);
await _users.UpdateAsync(user);
return Ok(new { accessToken, refreshToken = user.RefreshToken, user.Username, user.Role, jti, exp = expUtc });
}
[HttpPost("refresh")]
public async Task<IActionResult> Refresh([FromBody] RefreshRequest req)
{
var user = await _users.GetByUsernameAsync(req.Username);
if (user == null || user.RefreshToken != req.RefreshToken || user.RefreshTokenExpiry < DateTime.UtcNow)
return Unauthorized("Invalid or expired refresh token");
var (accessToken, _, expUtc) = GenerateJwtToken(user);
return Ok(new { accessToken, exp = expUtc });
}
[HttpPost("logout")]
[Authorize(Roles = "USER,SUPER")]
public async Task<IActionResult> Logout()
{
var token = HttpContext.Request.Headers["Authorization"].FirstOrDefault()?.Replace("Bearer ", "");
if (string.IsNullOrWhiteSpace(token)) return BadRequest("Token missing");
var jwt = new JwtSecurityTokenHandler().ReadJwtToken(token);
await _blacklist.AddToBlacklistAsync(jwt.Id, jwt.ValidTo);
return Ok("Logged out.");
}
[HttpPost("role")]
[Authorize(Roles = "SUPER")]
public async Task<IActionResult> ChangeUserRole([FromBody] ChangeRoleRequest req)
{
if (req.NewRole is not ("USER" or "SUPER")) return BadRequest("Role must be 'USER' or 'SUPER'");
var user = await _users.GetByUsernameAsync(req.Username);
if (user is null) return NotFound("User not found");
user.Role = req.NewRole;
await _users.UpdateAsync(user);
return Ok($"{req.Username}'s role updated to {req.NewRole}");
}
[HttpGet("users")]
[Authorize(Roles = "SUPER")]
public async Task<IActionResult> GetAllUsers() => Ok(await _users.GetAllAsync());
private (string token, string jti, DateTime expUtc) GenerateJwtToken(User user)
{
var key = Encoding.UTF8.GetBytes(_cfg["Jwt:Key"]!);
var issuer = _cfg["Jwt:Issuer"] ?? "GameAuthApi";
var audience = _cfg["Jwt:Audience"] ?? issuer;
var creds = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256);
var jti = Guid.NewGuid().ToString("N");
var claims = new[]
{
new Claim(ClaimTypes.Name, user.Username),
new Claim(ClaimTypes.NameIdentifier, user.Id),
new Claim(ClaimTypes.Role, user.Role),
new Claim(JwtRegisteredClaimNames.Jti, jti)
};
var exp = DateTime.UtcNow.AddMinutes(15);
var token = new JwtSecurityToken(issuer, audience, claims, expires: exp, signingCredentials: creds);
return (new JwtSecurityTokenHandler().WriteToken(token), jti, exp);
}
}
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namespace Auth.Models;
public class RegisterRequest { public string Username { get; set; } = ""; public string Password { get; set; } = ""; public string? Email { get; set; } }
public class LoginRequest { public string Username { get; set; } = ""; public string Password { get; set; } = ""; }
public class ChangeRoleRequest { public string Username { get; set; } = ""; public string NewRole { get; set; } = ""; }
public class RefreshRequest { public string Username { get; set; } = ""; public string RefreshToken { get; set; } = ""; }
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using MongoDB.Bson;
using MongoDB.Bson.Serialization.Attributes;
namespace Auth.Models;
public class User
{
[BsonId] [BsonRepresentation(BsonType.ObjectId)]
public string Id { get; set; } = default!;
public string Username { get; set; } = default!;
public string PasswordHash { get; set; } = default!;
public string Role { get; set; } = "USER";
public string? Email { get; set; }
public string? RefreshToken { get; set; }
public DateTime? RefreshTokenExpiry { get; set; }
}
+49 -37
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@@ -1,41 +1,53 @@
var builder = WebApplication.CreateBuilder(args);
using Auth.Services;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using System.Security.Claims;
using System.Text;
// Add services to the container.
// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
builder.Services.AddOpenApi();
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddControllers();
// DI
builder.Services.AddSingleton<UserService>();
builder.Services.AddSingleton<BlacklistService>();
// AuthN/JWT
var cfg = builder.Configuration;
var jwtKey = cfg["Jwt:Key"] ?? throw new Exception("Jwt:Key missing");
var issuer = cfg["Jwt:Issuer"] ?? "GameAuthApi";
var aud = cfg["Jwt:Audience"] ?? issuer;
builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(o =>
{
o.TokenValidationParameters = new TokenValidationParameters
{
ValidateIssuer = true, ValidIssuer = issuer,
ValidateAudience = true, ValidAudience = aud,
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwtKey)),
ValidateLifetime = true,
ClockSkew = TimeSpan.FromSeconds(30)
};
o.Events = new JwtBearerEvents
{
OnTokenValidated = async ctx =>
{
var jti = ctx.Principal?.FindFirstValue(System.IdentityModel.Tokens.Jwt.JwtRegisteredClaimNames.Jti);
if (!string.IsNullOrEmpty(jti))
{
var bl = ctx.HttpContext.RequestServices.GetRequiredService<BlacklistService>();
if (await bl.IsBlacklistedAsync(jti)) ctx.Fail("Token revoked");
}
}
};
});
builder.Services.AddAuthorization();
var app = builder.Build();
// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
app.MapOpenApi();
}
app.UseHttpsRedirection();
var summaries = new[]
{
"Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
};
app.MapGet("/weatherforecast", () =>
{
var forecast = Enumerable.Range(1, 5).Select(index =>
new WeatherForecast
(
DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
Random.Shared.Next(-20, 55),
summaries[Random.Shared.Next(summaries.Length)]
))
.ToArray();
return forecast;
})
.WithName("GetWeatherForecast");
app.MapGet("/healthz", () => Results.Ok("ok"));
app.UseAuthentication();
app.UseAuthorization();
app.MapControllers();
app.Run();
record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
{
public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
}
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using MongoDB.Bson.Serialization.Attributes;
using MongoDB.Driver;
namespace Auth.Services;
public class BlacklistedToken
{
[BsonId] public string Jti { get; set; } = default!;
public DateTime ExpiresAt { get; set; }
}
public class BlacklistService
{
private readonly IMongoCollection<BlacklistedToken> _col;
public BlacklistService(IConfiguration cfg)
{
var cs = cfg["MongoDB:ConnectionString"] ?? "mongodb://127.0.0.1:27017";
var dbName = cfg["MongoDB:DatabaseName"] ?? "GameDb";
var client = new MongoClient(cs);
var db = client.GetDatabase(dbName);
_col = db.GetCollection<BlacklistedToken>("token_blacklist");
// TTL index so revocations expire automatically
var keys = Builders<BlacklistedToken>.IndexKeys.Ascending(x => x.ExpiresAt);
_col.Indexes.CreateOne(new CreateIndexModel<BlacklistedToken>(keys, new CreateIndexOptions { ExpireAfter = TimeSpan.Zero }));
}
public Task AddToBlacklistAsync(string jti, DateTime expiresAt) =>
_col.ReplaceOneAsync(x => x.Jti == jti,
new BlacklistedToken { Jti = jti, ExpiresAt = expiresAt },
new ReplaceOptions { IsUpsert = true });
public Task<bool> IsBlacklistedAsync(string jti) =>
_col.Find(x => x.Jti == jti).AnyAsync();
}
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using Auth.Models;
using MongoDB.Driver;
namespace Auth.Services;
public class UserService
{
private readonly IMongoCollection<User> _col;
public UserService(IConfiguration cfg)
{
var cs = cfg["MongoDB:ConnectionString"] ?? "mongodb://127.0.0.1:27017";
var dbName = cfg["MongoDB:DatabaseName"] ?? "GameDb";
var client = new MongoClient(cs);
var db = client.GetDatabase(dbName);
_col = db.GetCollection<User>("users");
var keys = Builders<User>.IndexKeys.Ascending(u => u.Username);
_col.Indexes.CreateOne(new CreateIndexModel<User>(keys, new CreateIndexOptions { Unique = true }));
}
public Task<User?> GetByUsernameAsync(string username) =>
_col.Find(u => u.Username == username).FirstOrDefaultAsync();
public Task CreateAsync(User user) => _col.InsertOneAsync(user);
public Task UpdateAsync(User user) =>
_col.ReplaceOneAsync(u => u.Id == user.Id, user);
public Task<List<User>> GetAllAsync() =>
_col.Find(FilterDefinition<User>.Empty).ToListAsync();
}
+4 -6
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"Kestrel": { "Endpoints": { "Http": { "Url": "http://0.0.0.0:5000" } } },
"MongoDB": { "ConnectionString": "mongodb://192.168.86.50:27017", "DatabaseName": "GameDb" },
"Jwt": { "Key": "SuperUltraSecureJwtKeyWithAtLeast32Chars!!", "Issuer": "GameAuthApi", "Audience": "game-auth-api" },
"Logging": { "LogLevel": { "Default": "Information" } },
"AllowedHosts": "*"
}
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