Add MedMind recovery and Steam authentication

Program.cs

@@ -9,6 +9,8 @@ using Microsoft.Extensions.Hosting;
 using Microsoft.IdentityModel.Tokens;
 using System.Text;
 using Microsoft.AspNetCore.Http;
+using System.Threading.RateLimiting;
+using System;
 
 var builder = WebApplication.CreateBuilder(args);
 builder.WebHost.ConfigureKestrel(serverOptions => {});
@@ -55,6 +57,22 @@ builder.Services.AddSingleton<BlacklistService>();
 builder.Services.AddSingleton<AuctionService>();
 builder.Services.AddSingleton<ChatService>();
 builder.Services.AddSingleton<AdminService>();
+builder.Services.AddSingleton<PasswordResetService>();
+builder.Services.AddSingleton<EmailService>();
+builder.Services.AddSingleton<SteamAuthService>();
+builder.Services.AddHttpClient();
+builder.Services.AddRateLimiter(options =>
+{
+    options.AddPolicy("password-reset", context => RateLimitPartition.GetFixedWindowLimiter(
+        context.Connection.RemoteIpAddress?.ToString() ?? "unknown",
+        _ => new FixedWindowRateLimiterOptions
+        {
+            PermitLimit = 5,
+            Window = TimeSpan.FromMinutes(15),
+            QueueLimit = 0
+        }));
+    options.RejectionStatusCode = StatusCodes.Status429TooManyRequests;
+});
 
 var jwtKey = builder.Configuration["Jwt:Key"];
 var keyBytes = Encoding.UTF8.GetBytes(jwtKey);
@@ -85,7 +103,9 @@ builder.Services.AddCors(options =>
 });
 
 var app = builder.Build();
+app.UseRouting();
 app.UseCors("AllowAll");
+app.UseRateLimiter();
 
 // Enable OPTIONS requests to reach controllers
 app.Use(async (context, next) =>
@@ -109,4 +129,12 @@ app.UseAuthorization();
 
 app.MapControllers();
 
+using (var scope = app.Services.CreateScope())
+{
+    var users = scope.ServiceProvider.GetRequiredService<UserService>();
+    await users.BackfillNormalizedFieldsAsync();
+    await users.EnsureIndexesAsync();
+    await scope.ServiceProvider.GetRequiredService<PasswordResetService>().EnsureIndexesAsync();
+    await scope.ServiceProvider.GetRequiredService<SteamAuthService>().EnsureIndexesAsync();
+}
 app.Run();