Include executable hash when submitting multiplayer scores

osu.Game/OsuGameBase.cs

@@ -11,6 +11,7 @@ using osu.Framework.Allocation;
 using osu.Framework.Audio;
 using osu.Framework.Bindables;
 using osu.Framework.Development;
+using osu.Framework.Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.IO.Stores;
@@ -97,6 +98,11 @@ namespace osu.Game
 
         public virtual Version AssemblyVersion => Assembly.GetEntryAssembly()?.GetName().Version ?? new Version();
 
+        /// <summary>
+        /// MD5 representation of the game executable.
+        /// </summary>
+        public string VersionHash { get; private set; }
+
         public bool IsDeployedBuild => AssemblyVersion.Major > 0;
 
         public virtual string Version
@@ -128,6 +134,14 @@ namespace osu.Game
         [BackgroundDependencyLoader]
         private void load()
         {
+            var assembly = Assembly.GetEntryAssembly();
+
+            if (assembly != null)
+            {
+                using (var str = File.OpenRead(assembly.Location))
+                    VersionHash = str.ComputeMD5Hash();
+            }
+
             Resources.AddStore(new DllResourceStore(OsuResources.ResourceAssembly));
 
             dependencies.Cache(contextFactory = new DatabaseContextFactory(Storage));

osu.Game/Scoring/ScoreInfo.cs

@@ -51,6 +51,9 @@ namespace osu.Game.Scoring
         [NotMapped]
         public bool Passed { get; set; } = true;
 
+        [JsonProperty("version_hash")]
+        public string VersionHash { get; set; }
+
         [JsonIgnore]
         public virtual RulesetInfo Ruleset { get; set; }
 

osu.Game/Screens/Play/Player.cs

@@ -465,6 +465,7 @@ namespace osu.Game.Screens.Play
             {
                 Beatmap = Beatmap.Value.BeatmapInfo,
                 Ruleset = rulesetInfo,
+                VersionHash = Game.VersionHash,
                 Mods = Mods.Value.ToArray(),
             };