Auth-managed HWIDs (#26)

API side of space-wizards/RobustToolbox#5446

SS14.Auth.Shared/Data/ApplicationDbContext.cs

@@ -40,6 +40,11 @@ protected override void OnModelCreating(ModelBuilder builder)
             .HasIndex(p => new {p.Hash, p.SpaceUserId})
             .IsUnique();
 
+        builder.Entity<AuthHash>()
+            .HasOne(h => h.Hwid)
+            .WithMany()
+            .OnDelete(DeleteBehavior.SetNull);
+
         builder.Entity<BurnerEmail>()
             .HasIndex(p => new {p.Domain})
             .IsUnique();
@@ -60,6 +65,14 @@ protected override void OnModelCreating(ModelBuilder builder)
             .HasIndex(p => new { p.ClientId })
             .IsUnique();
 
+        builder.Entity<Hwid>()
+            .HasIndex(h => h.ClientData)
+            .IsUnique();
+
+        builder.Entity<HwidUser>()
+            .HasIndex(h => new { h.HwidId, h.SpaceUserId })
+            .IsUnique();
+
         var cfgStoreOptions = new ConfigurationStoreOptions
         {
             IdentityResource = new TableConfiguration("IdentityResources", "IS4"),
@@ -103,6 +116,8 @@ protected override void OnModelCreating(ModelBuilder builder)
     public DbSet<UserOAuthClient> UserOAuthClients { get; set; }
     public DbSet<PastAccountName> PastAccountNames { get; set; }
     public DbSet<AccountLog> AccountLogs { get; set; }
+    public DbSet<Hwid> Hwids { get; set; }
+    public DbSet<HwidUser> HwidUsers { get; set; }
 
     // IS4 configuration.
     public DbSet<Client> Clients { get; set; }
@@ -120,4 +135,4 @@ Task<int> IPersistedGrantDbContext.SaveChangesAsync()
     {
         return base.SaveChangesAsync();
     }
-}
+}

SS14.Auth.Shared/Data/AuthHash.cs

@@ -1,5 +1,6 @@
 using System;
 using System.ComponentModel.DataAnnotations;
+using JetBrains.Annotations;
 
 namespace SS14.Auth.Shared.Data;
 
@@ -10,8 +11,14 @@ public class AuthHash
     public Guid SpaceUserId { get; set; }
     public SpaceUser SpaceUser { get; set; }
 
+    /// <summary>
+    /// The HWID for the connection attempt from the client.
+    /// </summary>
+    public long? HwidId { get; set; }
+    [CanBeNull] public Hwid Hwid { get; set; }
+
     public DateTimeOffset Expires { get; set; }
 
     [Required]
     public byte[] Hash { get; set; }
-}
+}

SS14.Auth.Shared/Data/Hwid.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
+
+namespace SS14.Auth.Shared.Data;
+
+/// <summary>
+/// A single HWID known to the authorization database.
+/// </summary>
+public sealed class Hwid
+{
+    /// <summary>
+    /// Type code for <see cref="TypeCode"/>.
+    /// </summary>
+    public const int Type1 = 1;
+
+    public long Id { get; set; }
+
+    /// <summary>
+    /// Intended to be used for administration of the database.
+    /// </summary>
+    public int TypeCode { get; set; }
+
+    /// <summary>
+    /// Data returned by client.
+    /// </summary>
+    [Required] public byte[] ClientData { get; set; }
+
+    /// <summary>
+    /// ID value given to servers.
+    /// </summary>
+    [Required] public byte[] Value { get; set; }
+
+    /// <summary>
+    /// Users that have been "spotted" using this HWID.
+    /// </summary>
+    [JsonIgnore]
+    public List<HwidUser> Users { get; set; } = default!;
+}
+
+/// <summary>
+/// A hit of a user ever having used an HWID.
+/// </summary>
+public sealed class HwidUser
+{
+    public long Id { get; set; }
+
+    /// <summary>
+    /// ID of the <see cref="Hwid"/> that this user was seen to be using.
+    /// </summary>
+    public long HwidId { get; set; }
+    public Guid SpaceUserId { get; set; }
+
+    /// <summary>
+    /// When the user was first seen using this HWID.
+    /// </summary>
+    public DateTime FirstSeen { get; set; }
+
+    public Hwid Hwid { get; set; } = null!;
+
+    [JsonIgnore]
+    public SpaceUser SpaceUser { get; set; } = null!;
+}