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Extract shared auth request validation

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This commit is contained in:
Frank Tovar
2026-02-07 00:47:42 +01:00
parent b86343a59d
commit 16fcf4a432
2 changed files with 89 additions and 30 deletions
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42
Endpoints/AuthEndpoints.cs
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@@ -15,33 +15,19 @@ public static class AuthEndpoints
group.MapPost("/register", async ([FromBody] RegisterRequest request, HttpContext ctx, AppDbContext db, IConfiguration config) =>
{
var username = request.Username.Trim();
if (string.IsNullOrWhiteSpace(username) || username.Length > 24)
return Results.BadRequest(new { error = "Username is required and must be <= 24 characters." });
if (!AuthValidator.TryValidateRegistration(request, out var validated, out var registrationError))
return Results.BadRequest(new { error = registrationError });
if (string.IsNullOrWhiteSpace(request.Password))
return Results.BadRequest(new { error = "Password is required." });
if (request.DisplayName?.Trim().Length > 16)
return Results.BadRequest(new { error = "Display name must be <= 16 characters." });
var displayName = EndpointHelpers.TrimTo(request.DisplayName, 16);
if (string.IsNullOrWhiteSpace(displayName))
return Results.BadRequest(new { error = "Display name is required." });
var normalized = username.ToLowerInvariant();
var exists = await db.Players.AnyAsync(p => p.NormalizedUsername == normalized);
var exists = await db.Players.AnyAsync(p => p.NormalizedUsername == validated.NormalizedUsername);
if (exists)
return Results.Conflict(new { error = "Username already taken." });
var (hash, salt) = PasswordHasher.HashPassword(request.Password);
var adminKey = EndpointHelpers.TrimTo(request.AdminKey, 128);
var expectedAdminKey = config["ADMIN_PASSWORD"];
var wantsAdmin = !string.IsNullOrWhiteSpace(adminKey);
var wantsAdmin = !string.IsNullOrWhiteSpace(validated.AdminKey);
if (wantsAdmin)
{
if (string.IsNullOrWhiteSpace(expectedAdminKey) || adminKey != expectedAdminKey)
if (string.IsNullOrWhiteSpace(expectedAdminKey) || validated.AdminKey != expectedAdminKey)
return Results.BadRequest(new { error = "Invalid admin key." });
}
@@ -50,11 +36,11 @@ public static class AuthEndpoints
var player = new Player
{
Id = Guid.NewGuid(),
Username = username,
NormalizedUsername = normalized,
Username = validated.Username,
NormalizedUsername = validated.NormalizedUsername,
PasswordHash = hash,
PasswordSalt = salt,
DisplayName = displayName,
DisplayName = validated.DisplayName,
IsAdmin = isAdmin,
CreatedAt = DateTimeOffset.UtcNow,
LastLoginAt = DateTimeOffset.UtcNow
@@ -76,20 +62,16 @@ public static class AuthEndpoints
group.MapPost("/login", async ([FromBody] LoginRequest request, HttpContext ctx, AppDbContext db) =>
{
var username = request.Username.Trim();
if (string.IsNullOrWhiteSpace(username) || string.IsNullOrWhiteSpace(request.Password))
return Results.BadRequest(new { error = "Username and password are required." });
if (username.Length > 24)
return Results.BadRequest(new { error = "Username must be <= 24 characters." });
if (!AuthValidator.TryValidateLogin(request, out _, out var normalizedUsername, out var loginError))
return Results.BadRequest(new { error = loginError });
var normalized = username.ToLowerInvariant();
var player = await db.Players.FirstOrDefaultAsync(p => p.NormalizedUsername == normalized);
var player = await db.Players.FirstOrDefaultAsync(p => p.NormalizedUsername == normalizedUsername);
if (player == null || !PasswordHasher.Verify(request.Password, player.PasswordHash, player.PasswordSalt))
return Results.Json(new { error = "Invalid username or password." }, statusCode: StatusCodes.Status401Unauthorized);
if (string.IsNullOrWhiteSpace(player.DisplayName))
{
player.DisplayName = EndpointHelpers.TrimTo(player.Username, 16);
player.DisplayName = EndpointHelpers.TrimTo(player.Username, AuthValidator.MaxDisplayNameLength);
}
player.LastLoginAt = DateTimeOffset.UtcNow;