HS emulator

3 files changed, 181 insertions, 0 deletions

diff --git a/Tests/LibMatrix.HomeserverEmulator/Services/RoomStore.cs b/Tests/LibMatrix.HomeserverEmulator/Services/RoomStore.cs
new file mode 100644
index 0000000..b4624ab
--- /dev/null
+++ b/Tests/LibMatrix.HomeserverEmulator/Services/RoomStore.cs
@@ -0,0 +1,83 @@
+using System.Collections.Concurrent;
+using System.Security.Cryptography;
+using LibMatrix.EventTypes;
+using LibMatrix.EventTypes.Spec.State;
+using LibMatrix.Responses;
+
+namespace LibMatrix.HomeserverEmulator.Services;
+
+public class RoomStore {
+    public ConcurrentBag<Room> _rooms = new();
+    private Dictionary<string, Room> _roomsById = new();
+
+    private void RebuildIndexes() {
+        _roomsById = _rooms.ToDictionary(u => u.RoomId);
+    }
+
+    public Room? GetRoomById(string roomId, bool createIfNotExists = false) {
+        if (_roomsById.TryGetValue(roomId, out var user)) {
+            return user;
+        }
+
+        if (!createIfNotExists)
+            return null;
+
+        return CreateRoom(new() { });
+    }
+
+    public Room CreateRoom(CreateRoomRequest request) {
+        var room = new Room {
+            RoomId = $"!{Guid.NewGuid().ToString()}"
+        };
+        if (!string.IsNullOrWhiteSpace(request.Name))
+            room.SetStateInternal(new StateEvent() {
+                Type = RoomNameEventContent.EventId,
+                TypedContent = new RoomNameEventContent() {
+                    Name = request.Name
+                }
+            });
+
+        if (!string.IsNullOrWhiteSpace(request.RoomAliasName))
+            room.SetStateInternal(new StateEvent() {
+                Type = RoomCanonicalAliasEventContent.EventId,
+                TypedContent = new RoomCanonicalAliasEventContent() {
+                    Alias = $"#{request.RoomAliasName}:localhost"
+                }
+            });
+
+        foreach (var stateEvent in request.InitialState ?? []) {
+            room.SetStateInternal(stateEvent);
+        }
+
+        _rooms.Add(room);
+        RebuildIndexes();
+        return room;
+    }
+
+    public class Room {
+        public string RoomId { get; set; }
+        public List<StateEventResponse> State { get; set; } = new();
+        public Dictionary<string, EventContent> Timeline { get; set; } = new();
+
+        internal StateEventResponse SetStateInternal(StateEvent request) {
+            var state = new StateEventResponse() {
+                Type = request.Type,
+                StateKey = request.StateKey,
+                RawContent = request.RawContent,
+                EventId = Guid.NewGuid().ToString()
+            };
+            State.Add(state);
+            return state;
+        }
+
+        public StateEventResponse AddUser(string userId) {
+            return SetStateInternal(new() {
+                Type = RoomMemberEventContent.EventId,
+                StateKey = userId,
+                TypedContent = new RoomMemberEventContent() {
+                    Membership = "join"
+                }
+            });
+        }
+    }
+}
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diff --git a/Tests/LibMatrix.HomeserverEmulator/Services/TokenService.cs b/Tests/LibMatrix.HomeserverEmulator/Services/TokenService.cs
new file mode 100644
index 0000000..8115bee
--- /dev/null
+++ b/Tests/LibMatrix.HomeserverEmulator/Services/TokenService.cs
@@ -0,0 +1,26 @@
+namespace LibMatrix.HomeserverEmulator.Services;
+
+public class TokenService(IHttpContextAccessor accessor) {
+    public string? GetAccessToken() {
+        var ctx = accessor.HttpContext;
+        if (ctx is null) return null;
+        //qry
+        if (ctx.Request.Query.TryGetValue("access_token", out var token)) {
+            return token;
+        }
+        //header
+        if (ctx.Request.Headers.TryGetValue("Authorization", out var auth)) {
+            var parts = auth.ToString().Split(' ');
+            if (parts.Length == 2 && parts[0] == "Bearer") {
+                return parts[1];
+            }
+        }
+        return null;
+    }
+
+    public string? GenerateServerName() {
+        var ctx = accessor.HttpContext;
+        if (ctx is null) return null;
+        return ctx.Request.Host.ToString();
+    }
+}
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diff --git a/Tests/LibMatrix.HomeserverEmulator/Services/UserStore.cs b/Tests/LibMatrix.HomeserverEmulator/Services/UserStore.cs
new file mode 100644
index 0000000..ca1c577
--- /dev/null
+++ b/Tests/LibMatrix.HomeserverEmulator/Services/UserStore.cs
@@ -0,0 +1,72 @@
+using LibMatrix.EventTypes.Spec.State;
+
+namespace LibMatrix.HomeserverEmulator.Services;
+
+public class UserStore(RoomStore roomStore) {
+    public List<User> _users = new();
+    private Dictionary<string, User> _usersById = new();
+    private Dictionary<string, User> _usersByToken = new();
+
+    private void RebuildIndexes() {
+        _usersById = _users.ToDictionary(u => u.UserId);
+        _usersByToken = _users.ToDictionary(u => u.AccessToken);
+    }
+
+    public async Task<User?> GetUserById(string userId, bool createIfNotExists = false) {
+        if (_usersById.TryGetValue(userId, out var user)) {
+            return user;
+        }
+
+        if (!createIfNotExists)
+            return null;
+
+        return await CreateUser(userId, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), new Dictionary<string, object>());
+    }
+
+    public async Task<User?> GetUserByToken(string token, bool createIfNotExists = false, string? serverName = null) {
+        if (_usersByToken.TryGetValue(token, out var user)) {
+            return user;
+        }
+
+        if (!createIfNotExists)
+            return null;
+        if (string.IsNullOrWhiteSpace(serverName)) throw new NullReferenceException("Server name was not passed");
+        var uid = $"@{Guid.NewGuid().ToString()}:{serverName}";
+        return await CreateUser(uid, Guid.NewGuid().ToString(), token, new Dictionary<string, object>());
+    }
+
+    public async Task<User> CreateUser(string userId, string deviceId, string accessToken, Dictionary<string, object> profile) {
+        if (!profile.ContainsKey("displayname")) profile.Add("displayname", userId.Split(":")[0]);
+        if (!profile.ContainsKey("avatar_url")) profile.Add("avatar_url", null);
+        var user = new User {
+            UserId = userId,
+            DeviceId = deviceId,
+            AccessToken = accessToken,
+            Profile = profile
+        };
+        _users.Add(user);
+        RebuildIndexes();
+
+        if (roomStore._rooms.Count > 0)
+            foreach (var item in Random.Shared.GetItems(roomStore._rooms.ToArray(), Math.Min(roomStore._rooms.Count, 400))) {
+                item.AddUser(userId);
+            }
+
+        int random = Random.Shared.Next(10);
+        for (int i = 0; i < random; i++) {
+            var room = roomStore.CreateRoom(new());
+            room.AddUser(userId);
+        }
+
+        return user;
+    }
+
+    public class User {
+        public string UserId { get; set; }
+        public string AccessToken { get; set; }
+        public string DeviceId { get; set; }
+        public Dictionary<string, object> Profile { get; set; }
+
+        public List<string> JoinedRooms { get; set; } = new();
+    }
+}
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