From 2fde2d5f961eabf3167280ba55786cdb6b38f2c0 Mon Sep 17 00:00:00 2001
From: Rory& <root@rory.gay>
Date: Fri, 2 May 2025 16:21:13 +0200
Subject: Add support for ignoring users, add user/room/event reporting

---
 .../Spec/IgnoredUserListEventContent.cs            | 27 +++++++++++
 .../State/Policy/PolicyRuleStateEventContent.cs    | 13 +++++-
 .../Homeservers/AuthenticatedHomeserverGeneric.cs  | 52 +++++++++++++++++++---
 3 files changed, 86 insertions(+), 6 deletions(-)
 create mode 100644 LibMatrix.EventTypes/Spec/IgnoredUserListEventContent.cs

diff --git a/LibMatrix.EventTypes/Spec/IgnoredUserListEventContent.cs b/LibMatrix.EventTypes/Spec/IgnoredUserListEventContent.cs
new file mode 100644
index 0000000..3643b8c
--- /dev/null
+++ b/LibMatrix.EventTypes/Spec/IgnoredUserListEventContent.cs
@@ -0,0 +1,27 @@
+using System.Text.Json;
+using System.Text.Json.Nodes;
+using System.Text.Json.Serialization;
+
+namespace LibMatrix.EventTypes.Spec;
+
+[MatrixEvent(EventName = EventId)]
+public class IgnoredUserListEventContent : EventContent {
+    public const string EventId = "m.ignored_user_list";
+
+    [JsonPropertyName("ignored_users")]
+    public Dictionary<string, IgnoredUserContent> IgnoredUsers { get; set; } = new();
+
+    // Dummy type to provide easy access to the by-spec empty content
+    public class IgnoredUserContent {
+        [JsonExtensionData]
+        public Dictionary<string, object>? AdditionalData { get; set; } = [];
+
+        public T GetAdditionalData<T>(string key) {
+            if (AdditionalData == null || !AdditionalData.TryGetValue(key, out var value))
+                throw new KeyNotFoundException($"Key '{key}' not found in AdditionalData.");
+            if (value is T tValue)
+                return tValue;
+            throw new InvalidCastException($"Value for key '{key}' cannot be cast to type '{typeof(T)}'. Cannot continue.");
+        }
+    }
+}
\ No newline at end of file
diff --git a/LibMatrix.EventTypes/Spec/State/Policy/PolicyRuleStateEventContent.cs b/LibMatrix.EventTypes/Spec/State/Policy/PolicyRuleStateEventContent.cs
index 0cb4a25..6f8c194 100644
--- a/LibMatrix.EventTypes/Spec/State/Policy/PolicyRuleStateEventContent.cs
+++ b/LibMatrix.EventTypes/Spec/State/Policy/PolicyRuleStateEventContent.cs
@@ -97,16 +97,27 @@ public abstract class PolicyRuleEventContent : EventContent {
 
     public Regex? GetEntityRegex() => Entity is null ? null : new(Entity.Replace(".", "\\.").Replace("*", ".*").Replace("?", "."));
 
+    public bool IsGlobRule() =>
+        Entity != null
+        && (Entity.Contains('*') || Entity.Contains('?'));
+
     public bool EntityMatches(string entity) =>
         Entity != null
         && (
             Entity == entity
             || (
-                Entity.Contains("*") || Entity.Contains("?")
+                IsGlobRule()
                     ? GetEntityRegex()!.IsMatch(entity)
                     : entity == Entity
             )
         );
+
+    public string? GetNormalizedRecommendation() {
+        if (Recommendation is "m.ban" or "org.matrix.mjolnir.ban")
+            return PolicyRecommendationTypes.Ban;
+
+        return Recommendation;
+    }
 }
 
 public static class PolicyRecommendationTypes {
diff --git a/LibMatrix/Homeservers/AuthenticatedHomeserverGeneric.cs b/LibMatrix/Homeservers/AuthenticatedHomeserverGeneric.cs
index c1bbc5a..55899de 100644
--- a/LibMatrix/Homeservers/AuthenticatedHomeserverGeneric.cs
+++ b/LibMatrix/Homeservers/AuthenticatedHomeserverGeneric.cs
@@ -5,6 +5,7 @@ using System.Text.Json.Nodes;
 using System.Text.Json.Serialization;
 using System.Web;
 using ArcaneLibs.Extensions;
+using LibMatrix.EventTypes.Spec;
 using LibMatrix.EventTypes.Spec.State.RoomInfo;
 using LibMatrix.Filters;
 using LibMatrix.Helpers;
@@ -169,8 +170,9 @@ public class AuthenticatedHomeserverGeneric : RemoteHomeserver {
         try {
             return await GetAccountDataAsync<T>(key);
         }
-        catch (Exception e) {
-            return default;
+        catch (MatrixException e) {
+            if (e is { ErrorCode: MatrixException.ErrorCodes.M_NOT_FOUND }) return default;
+            throw;
         }
     }
 
@@ -188,8 +190,7 @@ public class AuthenticatedHomeserverGeneric : RemoteHomeserver {
 
     public async Task UpdateProfilePropertyAsync(string name, object? value) {
         var caps = await GetCapabilitiesAsync();
-        if(caps is null) throw new Exception("Failed to get capabilities");
-
+        if (caps is null) throw new Exception("Failed to get capabilities");
     }
 
 #endregion
@@ -532,8 +533,49 @@ public class AuthenticatedHomeserverGeneric : RemoteHomeserver {
     }
 
 #endregion
+
+    public Task ReportRoomAsync(string roomId, string reason) =>
+        ClientHttpClient.PostAsJsonAsync($"/_matrix/client/v3/rooms/{roomId}/report", new {
+            reason
+        });
+
+    public async Task ReportRoomEventAsync(string roomId, string eventId, string reason, int score = 0, bool ignoreSender = false) {
+        await ClientHttpClient.PostAsJsonAsync($"/_matrix/client/v3/rooms/{roomId}/report/{eventId}", new {
+            reason,
+            score
+        });
+
+        if (ignoreSender) {
+            var eventContent = await GetRoom(roomId).GetEventAsync(eventId);
+            var sender = eventContent.Sender;
+            await IgnoreUserAsync(sender);
+        }
+    }
+
+    public async Task ReportUserAsync(string userId, string reason, bool ignore = false) {
+        await ClientHttpClient.PostAsJsonAsync($"/_matrix/client/v3/users/{userId}/report", new {
+            reason
+        });
+
+        if (ignore) {
+            await IgnoreUserAsync(userId);
+        }
+    }
+
+    public async Task<IgnoredUserListEventContent> GetIgnoredUserListAsync() {
+        return await GetAccountDataOrNullAsync<IgnoredUserListEventContent>(IgnoredUserListEventContent.EventId) ?? new();
+    }
+
+    public async Task IgnoreUserAsync(string userId, IgnoredUserListEventContent.IgnoredUserContent? content = null) {
+        content ??= new();
+
+        var ignoredUserList = await GetIgnoredUserListAsync();
+        ignoredUserList.IgnoredUsers.TryAdd(userId, content);
+        await SetAccountDataAsync(IgnoredUserListEventContent.EventId, ignoredUserList);
+    }
+
     private class CapabilitiesResponse {
         [JsonPropertyName("capabilities")]
         public Dictionary<string, object>? Capabilities { get; set; }
     }
-}
+}
\ No newline at end of file
-- 
cgit 1.5.1