Moderation bot work

22 files changed, 1310 insertions, 0 deletions

diff --git a/ExampleBots/ModerationBot/AccountData/BotData.cs b/ExampleBots/ModerationBot/AccountData/BotData.cs
new file mode 100644
index 0000000..df86589
--- /dev/null
+++ b/ExampleBots/ModerationBot/AccountData/BotData.cs
@@ -0,0 +1,14 @@
+using System.Text.Json.Serialization;
+
+namespace ModerationBot.AccountData;
+
+public class BotData {
+    [JsonPropertyName("control_room")]
+    public string ControlRoom { get; set; } = "";
+
+    [JsonPropertyName("log_room")]
+    public string? LogRoom { get; set; } = "";
+
+    [JsonPropertyName("default_policy_room")]
+    public string? DefaultPolicyRoom { get; set; }
+}
\ No newline at end of file
diff --git a/ExampleBots/ModerationBot/Commands/BanMediaCommand.cs b/ExampleBots/ModerationBot/Commands/BanMediaCommand.cs
new file mode 100644
index 0000000..21e0a94
--- /dev/null
+++ b/ExampleBots/ModerationBot/Commands/BanMediaCommand.cs
@@ -0,0 +1,113 @@
+using System.Buffers.Text;
+using System.Security.Cryptography;
+using ArcaneLibs.Extensions;
+using LibMatrix;
+using LibMatrix.EventTypes.Spec;
+using LibMatrix.Helpers;
+using LibMatrix.Services;
+using LibMatrix.Utilities.Bot.Interfaces;
+using ModerationBot.AccountData;
+using ModerationBot.StateEventTypes;
+using ModerationBot.StateEventTypes.Policies.Implementations;
+
+namespace ModerationBot.Commands;
+
+public class BanMediaCommand(IServiceProvider services, HomeserverProviderService hsProvider, HomeserverResolverService hsResolver, PolicyEngine engine) : ICommand {
+    public string Name { get; } = "banmedia";
+    public string Description { get; } = "Create a policy banning a piece of media, must be used in reply to a message";
+
+    public async Task<bool> CanInvoke(CommandContext ctx) {
+        //check if user is admin in control room
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        var controlRoom = ctx.Homeserver.GetRoom(botData.ControlRoom);
+        var isAdmin = (await controlRoom.GetPowerLevelsAsync())!.UserHasPermission(ctx.MessageEvent.Sender, "m.room.ban");
+        if (!isAdmin) {
+            // await ctx.Reply("You do not have permission to use this command!");
+            await ctx.Homeserver.GetRoom(botData.LogRoom!).SendMessageEventAsync(
+                new RoomMessageEventContent(body: $"User {ctx.MessageEvent.Sender} tried to use command {Name} but does not have permission!", messageType: "m.text"));
+        }
+
+        return isAdmin;
+    }
+
+    public async Task Invoke(CommandContext ctx) {
+        
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        var policyRoom = ctx.Homeserver.GetRoom(botData.DefaultPolicyRoom ?? botData.ControlRoom);
+        var logRoom = ctx.Homeserver.GetRoom(botData.LogRoom ?? botData.ControlRoom);
+
+        //check if reply
+        var messageContent = ctx.MessageEvent.TypedContent as RoomMessageEventContent;
+        if (messageContent?.RelatesTo is { InReplyTo: not null }) {
+            try {
+                await logRoom.SendMessageEventAsync(
+                    new RoomMessageEventContent(
+                        body: $"User {MessageFormatter.HtmlFormatMention(ctx.MessageEvent.Sender)} is trying to ban media {messageContent!.RelatesTo!.InReplyTo!.EventId}",
+                        messageType: "m.text"));
+
+                //get replied message
+                var repliedMessage = await ctx.Room.GetEventAsync<StateEventResponse>(messageContent.RelatesTo!.InReplyTo!.EventId);
+
+                //check if recommendation is in list
+                if (ctx.Args.Length < 2) {
+                    await ctx.Room.SendMessageEventAsync(MessageFormatter.FormatError("You must specify a recommendation type and reason!"));
+                    return;
+                }
+
+                var recommendation = ctx.Args[0];
+
+                if (recommendation is not ("ban" or "kick" or "mute" or "redact" or "spoiler" or "warn" or "warn_admins")) {
+                    await ctx.Room.SendMessageEventAsync(
+                        MessageFormatter.FormatError(
+                            $"Invalid recommendation type {recommendation}, must be `warn_admins`, `warn`, `spoiler`, `redact`, `mute`, `kick` or `ban`!"));
+                    return;
+                }
+
+                //hash file
+                var mxcUri = (repliedMessage.TypedContent as RoomMessageEventContent).Url!;
+                var resolvedUri = await hsResolver.ResolveMediaUri(mxcUri.Split('/')[2], mxcUri);
+                var hashAlgo = SHA3_256.Create();
+                var uriHash = hashAlgo.ComputeHash(mxcUri.AsBytes().ToArray());
+                byte[]? fileHash = null;
+
+                try {
+                    fileHash = await hashAlgo.ComputeHashAsync(await ctx.Homeserver.ClientHttpClient.GetStreamAsync(resolvedUri));
+                }
+                catch (Exception ex) {
+                    await logRoom.SendMessageEventAsync(
+                        MessageFormatter.FormatException($"Error calculating file hash for {mxcUri} via {mxcUri.Split('/')[2]}, retrying via {ctx.Homeserver.BaseUrl}...",
+                            ex));
+                    try {
+                        resolvedUri = await hsResolver.ResolveMediaUri(ctx.Homeserver.BaseUrl, mxcUri);
+                        fileHash = await hashAlgo.ComputeHashAsync(await ctx.Homeserver.ClientHttpClient.GetStreamAsync(resolvedUri));
+                    }
+                    catch (Exception ex2) {
+                        await ctx.Room.SendMessageEventAsync(MessageFormatter.FormatException("Error calculating file hash", ex2));
+                        await logRoom.SendMessageEventAsync(
+                            MessageFormatter.FormatException($"Error calculating file hash via {ctx.Homeserver.BaseUrl}!", ex2));
+                    }
+                }
+
+                MediaPolicyFile policy;
+                await policyRoom.SendStateEventAsync("gay.rory.moderation.rule.media", Guid.NewGuid().ToString(), policy = new MediaPolicyFile {
+                    Entity = Convert.ToBase64String(uriHash),
+                    FileHash = Convert.ToBase64String(fileHash),
+                    Reason = string.Join(' ', ctx.Args[1..]),
+                    Recommendation = recommendation,
+                });
+
+                await ctx.Room.SendMessageEventAsync(MessageFormatter.FormatSuccessJson("Media policy created", policy));
+                await logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccessJson("Media policy created", policy));
+            }
+            catch (Exception e) {
+                await logRoom.SendMessageEventAsync(MessageFormatter.FormatException("Error creating policy", e));
+                await ctx.Room.SendMessageEventAsync(MessageFormatter.FormatException("Error creating policy", e));
+                await using var stream = new MemoryStream(e.ToString().AsBytes().ToArray());
+                await logRoom.SendFileAsync("error.log.cs", stream);
+            }
+        }
+        else {
+            await ctx.Room.SendMessageEventAsync(MessageFormatter.FormatError("This command must be used in reply to a message!"));
+        }
+    }
+}
diff --git a/ExampleBots/ModerationBot/Commands/DbgAllRoomsArePolicyListsCommand.cs b/ExampleBots/ModerationBot/Commands/DbgAllRoomsArePolicyListsCommand.cs
new file mode 100644
index 0000000..09d3caf
--- /dev/null
+++ b/ExampleBots/ModerationBot/Commands/DbgAllRoomsArePolicyListsCommand.cs
@@ -0,0 +1,63 @@
+using System.Buffers.Text;
+using System.Security.Cryptography;
+using ArcaneLibs.Extensions;
+using LibMatrix;
+using LibMatrix.EventTypes.Spec;
+using LibMatrix.Helpers;
+using LibMatrix.RoomTypes;
+using LibMatrix.Services;
+using LibMatrix.Utilities.Bot.Interfaces;
+using ModerationBot.AccountData;
+using ModerationBot.StateEventTypes;
+
+namespace ModerationBot.Commands;
+
+public class DbgAllRoomsArePolicyListsCommand
+    (IServiceProvider services, HomeserverProviderService hsProvider, HomeserverResolverService hsResolver, PolicyEngine engine) : ICommand {
+    public string Name { get; } = "dbg-allroomsarepolicy";
+    public string Description { get; } = "[Debug] mark all rooms as trusted policy rooms";
+    private GenericRoom logRoom { get; set; }
+
+    public async Task<bool> CanInvoke(CommandContext ctx) {
+#if !DEBUG
+        return false;
+#endif
+
+        //check if user is admin in control room
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        var controlRoom = ctx.Homeserver.GetRoom(botData.ControlRoom);
+        var isAdmin = (await controlRoom.GetPowerLevelsAsync())!.UserHasPermission(ctx.MessageEvent.Sender, "m.room.ban");
+        if (!isAdmin) {
+            // await ctx.Reply("You do not have permission to use this command!");
+            await ctx.Homeserver.GetRoom(botData.LogRoom!).SendMessageEventAsync(
+                new RoomMessageEventContent(body: $"User {ctx.MessageEvent.Sender} tried to use command {Name} but does not have permission!", messageType: "m.text"));
+        }
+
+        return isAdmin;
+    }
+
+    public async Task Invoke(CommandContext ctx) {
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        logRoom = ctx.Homeserver.GetRoom(botData.LogRoom ?? botData.ControlRoom);
+        
+        var joinedRooms = await ctx.Homeserver.GetJoinedRooms();
+        
+        await ctx.Homeserver.SetAccountDataAsync("gay.rory.moderation_bot.policy_lists", joinedRooms.ToDictionary(x => x.RoomId, x => new PolicyList() {
+            Trusted = true
+        }));
+
+        await engine.ReloadActivePolicyLists();
+    }
+
+    private async Task<bool> JoinRoom(GenericRoom memberRoom, string reason, List<string> servers) {
+        try {
+            await memberRoom.JoinAsync(servers.ToArray(), reason);
+            await logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Joined room {memberRoom.RoomId}"));
+        }
+        catch (Exception e) {
+            await logRoom.SendMessageEventAsync(MessageFormatter.FormatException($"Failed to join {memberRoom.RoomId}", e));
+        }
+
+        return true;
+    }
+}
\ No newline at end of file
diff --git a/ExampleBots/ModerationBot/Commands/DbgDumpActivePoliciesCommand.cs b/ExampleBots/ModerationBot/Commands/DbgDumpActivePoliciesCommand.cs
new file mode 100644
index 0000000..395c87c
--- /dev/null
+++ b/ExampleBots/ModerationBot/Commands/DbgDumpActivePoliciesCommand.cs
@@ -0,0 +1,43 @@
+using System.Buffers.Text;
+using System.Security.Cryptography;
+using ArcaneLibs.Extensions;
+using LibMatrix;
+using LibMatrix.EventTypes.Spec;
+using LibMatrix.Helpers;
+using LibMatrix.RoomTypes;
+using LibMatrix.Services;
+using LibMatrix.Utilities.Bot.Interfaces;
+using ModerationBot.AccountData;
+using ModerationBot.StateEventTypes;
+
+namespace ModerationBot.Commands;
+
+public class DbgDumpActivePoliciesCommand
+    (IServiceProvider services, HomeserverProviderService hsProvider, HomeserverResolverService hsResolver, PolicyEngine engine) : ICommand {
+    public string Name { get; } = "dbg-dumppolicies";
+    public string Description { get; } = "[Debug] Dump all active policies";
+    private GenericRoom logRoom { get; set; }
+
+    public async Task<bool> CanInvoke(CommandContext ctx) {
+#if !DEBUG
+        return false;
+#endif
+
+        //check if user is admin in control room
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        var controlRoom = ctx.Homeserver.GetRoom(botData.ControlRoom);
+        var isAdmin = (await controlRoom.GetPowerLevelsAsync())!.UserHasPermission(ctx.MessageEvent.Sender, "m.room.ban");
+        if (!isAdmin) {
+            // await ctx.Reply("You do not have permission to use this command!");
+            await ctx.Homeserver.GetRoom(botData.LogRoom!).SendMessageEventAsync(
+                new RoomMessageEventContent(body: $"User {ctx.MessageEvent.Sender} tried to use command {Name} but does not have permission!", messageType: "m.text"));
+        }
+
+        return isAdmin;
+    }
+
+    public async Task Invoke(CommandContext ctx) {
+        await ctx.Room.SendFileAsync("all.json", new MemoryStream(engine.ActivePolicies.ToJson().AsBytes().ToArray()), contentType: "application/json");
+        await ctx.Room.SendFileAsync("by-type.json", new MemoryStream(engine.ActivePoliciesByType.ToJson().AsBytes().ToArray()), contentType: "application/json");
+    }
+}
\ No newline at end of file
diff --git a/ExampleBots/ModerationBot/Commands/DbgDumpAllStateTypesCommand.cs b/ExampleBots/ModerationBot/Commands/DbgDumpAllStateTypesCommand.cs
new file mode 100644
index 0000000..e9a645e
--- /dev/null
+++ b/ExampleBots/ModerationBot/Commands/DbgDumpAllStateTypesCommand.cs
@@ -0,0 +1,73 @@
+using System.Buffers.Text;
+using System.Security.Cryptography;
+using ArcaneLibs.Extensions;
+using LibMatrix;
+using LibMatrix.EventTypes.Spec;
+using LibMatrix.Helpers;
+using LibMatrix.RoomTypes;
+using LibMatrix.Services;
+using LibMatrix.Utilities.Bot.Interfaces;
+using ModerationBot.AccountData;
+using ModerationBot.StateEventTypes;
+
+namespace ModerationBot.Commands;
+
+public class DbgDumpAllStateTypesCommand
+    (IServiceProvider services, HomeserverProviderService hsProvider, HomeserverResolverService hsResolver, PolicyEngine engine) : ICommand {
+    public string Name { get; } = "dbg-dumpstatetypes";
+    public string Description { get; } = "[Debug] Dump all state types we can find";
+    private GenericRoom logRoom { get; set; }
+
+    public async Task<bool> CanInvoke(CommandContext ctx) {
+#if !DEBUG
+        return false;
+#endif
+
+        //check if user is admin in control room
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        var controlRoom = ctx.Homeserver.GetRoom(botData.ControlRoom);
+        var isAdmin = (await controlRoom.GetPowerLevelsAsync())!.UserHasPermission(ctx.MessageEvent.Sender, "m.room.ban");
+        if (!isAdmin) {
+            // await ctx.Reply("You do not have permission to use this command!");
+            await ctx.Homeserver.GetRoom(botData.LogRoom!).SendMessageEventAsync(
+                new RoomMessageEventContent(body: $"User {ctx.MessageEvent.Sender} tried to use command {Name} but does not have permission!", messageType: "m.text"));
+        }
+
+        return isAdmin;
+    }
+
+    public async Task Invoke(CommandContext ctx) {
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        logRoom = ctx.Homeserver.GetRoom(botData.LogRoom ?? botData.ControlRoom);
+
+
+        var joinedRooms = await ctx.Homeserver.GetJoinedRooms();
+
+        var tasks = joinedRooms.Select(GetStateTypes).ToAsyncEnumerable();
+        await foreach (var (room, (raw, html)) in tasks) {
+            await ctx.Room.SendMessageEventAsync(new RoomMessageEventContent("m.text") {
+                Body = $"States for {room.RoomId}:\n{raw}",
+                FormattedBody = $"States for {room.RoomId}:\n{html}",
+                Format = "org.matrix.custom.html"
+            });
+        }
+    }
+
+    private async Task<(GenericRoom room, (string raw, string html))> GetStateTypes(GenericRoom memberRoom) {
+        var states = await memberRoom.GetFullStateAsListAsync();
+
+        return (memberRoom, SummariseStateTypeCounts(states));
+    }
+    
+    private static (string Raw, string Html) SummariseStateTypeCounts(IList<StateEventResponse> states) {
+        string raw = "Count | State type | Mapped type", html = "<table><tr><th>Count</th><th>State type</th><th>Mapped type</th></tr>";
+        var groupedStates = states.GroupBy(x => x.Type).ToDictionary(x => x.Key, x => x.ToList()).OrderByDescending(x => x.Value.Count);
+        foreach (var (type, stateGroup) in groupedStates) {
+            raw += $"{stateGroup.Count} | {type} | {stateGroup[0].GetType.Name}";
+            html += $"<tr><td>{stateGroup.Count}</td><td>{type}</td><td>{stateGroup[0].GetType.Name}</td></tr>";
+        }
+
+        html += "</table>";
+        return (raw, html);
+    }
+}
\ No newline at end of file
diff --git a/ExampleBots/ModerationBot/Commands/JoinRoomCommand.cs b/ExampleBots/ModerationBot/Commands/JoinRoomCommand.cs
new file mode 100644
index 0000000..19a2c54
--- /dev/null
+++ b/ExampleBots/ModerationBot/Commands/JoinRoomCommand.cs
@@ -0,0 +1,54 @@
+using System.Buffers.Text;
+using System.Security.Cryptography;
+using ArcaneLibs.Extensions;
+using LibMatrix;
+using LibMatrix.EventTypes.Spec;
+using LibMatrix.Helpers;
+using LibMatrix.Services;
+using LibMatrix.Utilities.Bot.Interfaces;
+using ModerationBot.AccountData;
+using ModerationBot.StateEventTypes;
+
+namespace ModerationBot.Commands;
+
+public class JoinRoomCommand(IServiceProvider services, HomeserverProviderService hsProvider, HomeserverResolverService hsResolver, PolicyEngine engine) : ICommand {
+    public string Name { get; } = "join";
+    public string Description { get; } = "Join arbitrary rooms";
+
+    public async Task<bool> CanInvoke(CommandContext ctx) {
+        //check if user is admin in control room
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        var controlRoom = ctx.Homeserver.GetRoom(botData.ControlRoom);
+        var isAdmin = (await controlRoom.GetPowerLevelsAsync())!.UserHasPermission(ctx.MessageEvent.Sender, "m.room.ban");
+        if (!isAdmin) {
+            // await ctx.Reply("You do not have permission to use this command!");
+            await ctx.Homeserver.GetRoom(botData.LogRoom!).SendMessageEventAsync(
+                new RoomMessageEventContent(body: $"User {ctx.MessageEvent.Sender} tried to use command {Name} but does not have permission!", messageType: "m.text"));
+        }
+
+        return isAdmin;
+    }
+
+    public async Task Invoke(CommandContext ctx) {
+        
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        var policyRoom = ctx.Homeserver.GetRoom(botData.DefaultPolicyRoom ?? botData.ControlRoom);
+        var logRoom = ctx.Homeserver.GetRoom(botData.LogRoom ?? botData.ControlRoom);
+
+        await logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Joining room {ctx.Args[0]} with reason: {string.Join(' ', ctx.Args[1..])}"));
+        var roomId = ctx.Args[0];
+        var servers = new List<string>() {ctx.Homeserver.ServerName};
+        if (roomId.StartsWith('[')) {
+            
+        }
+
+        if (roomId.StartsWith('#')) {
+            var res = await ctx.Homeserver.ResolveRoomAliasAsync(roomId);
+            roomId = res.RoomId;
+            servers.AddRange(servers);
+        }
+
+        await ctx.Homeserver.JoinRoomAsync(roomId, servers, string.Join(' ', ctx.Args[1..]));
+        await logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Resolved room {ctx.Args[0]} to {roomId} with servers: {string.Join(", ", servers)}"));
+    }
+}
diff --git a/ExampleBots/ModerationBot/Commands/JoinSpaceMembersCommand.cs b/ExampleBots/ModerationBot/Commands/JoinSpaceMembersCommand.cs
new file mode 100644
index 0000000..c3b7d12
--- /dev/null
+++ b/ExampleBots/ModerationBot/Commands/JoinSpaceMembersCommand.cs
@@ -0,0 +1,75 @@
+using System.Buffers.Text;
+using System.Security.Cryptography;
+using ArcaneLibs.Extensions;
+using LibMatrix;
+using LibMatrix.EventTypes.Spec;
+using LibMatrix.Helpers;
+using LibMatrix.RoomTypes;
+using LibMatrix.Services;
+using LibMatrix.Utilities.Bot.Interfaces;
+using ModerationBot.AccountData;
+using ModerationBot.StateEventTypes;
+
+namespace ModerationBot.Commands;
+
+public class JoinSpaceMembersCommand(IServiceProvider services, HomeserverProviderService hsProvider, HomeserverResolverService hsResolver, PolicyEngine engine) : ICommand {
+    public string Name { get; } = "joinspacemembers";
+    public string Description { get; } = "Join all rooms in space";
+    private GenericRoom logRoom { get; set; }
+
+    public async Task<bool> CanInvoke(CommandContext ctx) {
+        //check if user is admin in control room
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        var controlRoom = ctx.Homeserver.GetRoom(botData.ControlRoom);
+        var isAdmin = (await controlRoom.GetPowerLevelsAsync())!.UserHasPermission(ctx.MessageEvent.Sender, "m.room.ban");
+        if (!isAdmin) {
+            // await ctx.Reply("You do not have permission to use this command!");
+            await ctx.Homeserver.GetRoom(botData.LogRoom!).SendMessageEventAsync(
+                new RoomMessageEventContent(body: $"User {ctx.MessageEvent.Sender} tried to use command {Name} but does not have permission!", messageType: "m.text"));
+        }
+
+        return isAdmin;
+    }
+
+    public async Task Invoke(CommandContext ctx) {
+        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        logRoom = ctx.Homeserver.GetRoom(botData.LogRoom ?? botData.ControlRoom);
+
+        await logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Joining space children of {ctx.Args[0]} with reason: {string.Join(' ', ctx.Args[1..])}"));
+        var roomId = ctx.Args[0];
+        var servers = new List<string>() {ctx.Homeserver.ServerName};
+        if (roomId.StartsWith('[')) {
+            
+        }
+
+        if (roomId.StartsWith('#')) {
+            var res = await ctx.Homeserver.ResolveRoomAliasAsync(roomId);
+            roomId = res.RoomId;
+            servers.AddRange(servers);
+        }
+
+        var room = ctx.Homeserver.GetRoom(roomId);
+        var tasks = new List<Task<bool>>();
+        await foreach (var memberRoom in room.AsSpace.GetChildrenAsync()) {
+            servers.Add(room.RoomId.Split(':', 2)[1]);
+            servers = servers.Distinct().ToList();
+            tasks.Add(JoinRoom(memberRoom, string.Join(' ', ctx.Args[1..]), servers));
+        }
+
+        await foreach (var b in tasks.ToAsyncEnumerable()) {
+            await Task.Delay(50);
+        }
+    }
+
+    private async Task<bool> JoinRoom(GenericRoom memberRoom, string reason, List<string> servers) {
+        try {
+            await memberRoom.JoinAsync(servers.ToArray(), reason);
+            await logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Joined room {memberRoom.RoomId}"));
+        }
+        catch (Exception e) {
+            await logRoom.SendMessageEventAsync(MessageFormatter.FormatException($"Failed to join {memberRoom.RoomId}", e));
+        }
+
+        return true;
+    }
+}
diff --git a/ExampleBots/ModerationBot/FirstRunTasks.cs b/ExampleBots/ModerationBot/FirstRunTasks.cs
new file mode 100644
index 0000000..ebbdc81
--- /dev/null
+++ b/ExampleBots/ModerationBot/FirstRunTasks.cs
@@ -0,0 +1,84 @@
+using LibMatrix;
+using LibMatrix.EventTypes.Spec.State;
+using LibMatrix.Homeservers;
+using LibMatrix.Responses;
+using ModerationBot.AccountData;
+
+namespace ModerationBot;
+
+public class FirstRunTasks {
+    public static async Task<BotData> ConstructBotData(AuthenticatedHomeserverGeneric hs, ModerationBotConfiguration configuration, BotData? botdata) {
+        botdata ??= new BotData();
+        var creationContent = CreateRoomRequest.CreatePrivate(hs, name: "Rory&::ModerationBot - Control room", roomAliasName: "moderation-bot-control-room");
+        creationContent.Invite = configuration.Admins;
+        creationContent.CreationContent["type"] = "gay.rory.moderation_bot.control_room";
+
+        if (botdata.ControlRoom is null)
+            try {
+                botdata.ControlRoom = (await hs.CreateRoom(creationContent)).RoomId;
+            }
+            catch (Exception e) {
+                if (e is not MatrixException { ErrorCode: "M_ROOM_IN_USE" }) {
+                    Console.WriteLine(e);
+                    throw;
+                }
+
+                creationContent.RoomAliasName += $"-{Guid.NewGuid()}";
+                botdata.ControlRoom = (await hs.CreateRoom(creationContent)).RoomId;
+            }
+        //set access rules to allow joining via control room
+        // creationContent.InitialState.Add(new StateEvent {
+        //     Type = "m.room.join_rules",
+        //     StateKey = "",
+        //     TypedContent = new RoomJoinRulesEventContent {
+        //         JoinRule = "knock_restricted",
+        //         Allow = new() {
+        //             new RoomJoinRulesEventContent.AllowEntry {
+        //                 Type = "m.room_membership",
+        //                 RoomId = botdata.ControlRoom
+        //             }
+        //         }
+        //     }
+        // });
+
+        creationContent.Name = "Rory&::ModerationBot - Log room";
+        creationContent.RoomAliasName = "moderation-bot-log-room";
+        creationContent.CreationContent["type"] = "gay.rory.moderation_bot.log_room";
+
+        if (botdata.LogRoom is null)
+            try {
+                botdata.LogRoom = (await hs.CreateRoom(creationContent)).RoomId;
+            }
+            catch (Exception e) {
+                if (e is not MatrixException { ErrorCode: "M_ROOM_IN_USE" }) {
+                    Console.WriteLine(e);
+                    throw;
+                }
+
+                creationContent.RoomAliasName += $"-{Guid.NewGuid()}";
+                botdata.LogRoom = (await hs.CreateRoom(creationContent)).RoomId;
+            }
+
+        creationContent.Name = "Rory&::ModerationBot - Policy room";
+        creationContent.RoomAliasName = "moderation-bot-policy-room";
+        creationContent.CreationContent["type"] = "gay.rory.moderation_bot.policy_room";
+
+        if (botdata.DefaultPolicyRoom is null)
+            try {
+                botdata.DefaultPolicyRoom = (await hs.CreateRoom(creationContent)).RoomId;
+            }
+            catch (Exception e) {
+                if (e is not MatrixException { ErrorCode: "M_ROOM_IN_USE" }) {
+                    Console.WriteLine(e);
+                    throw;
+                }
+
+                creationContent.RoomAliasName += $"-{Guid.NewGuid()}";
+                botdata.DefaultPolicyRoom = (await hs.CreateRoom(creationContent)).RoomId;
+            }
+
+        await hs.SetAccountDataAsync("gay.rory.moderation_bot_data", botdata);
+
+        return botdata;
+    }
+}
\ No newline at end of file
diff --git a/ExampleBots/ModerationBot/ModerationBot.cs b/ExampleBots/ModerationBot/ModerationBot.cs
new file mode 100644
index 0000000..79b05bf
--- /dev/null
+++ b/ExampleBots/ModerationBot/ModerationBot.cs
@@ -0,0 +1,275 @@
+using System.Security.Cryptography;
+using System.Text.RegularExpressions;
+using ArcaneLibs.Extensions;
+using LibMatrix;
+using LibMatrix.EventTypes.Spec;
+using LibMatrix.EventTypes.Spec.State;
+using LibMatrix.Helpers;
+using LibMatrix.Homeservers;
+using LibMatrix.Responses;
+using LibMatrix.RoomTypes;
+using LibMatrix.Services;
+using LibMatrix.Utilities.Bot.Interfaces;
+using ModerationBot.AccountData;
+using ModerationBot.StateEventTypes;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using ModerationBot.StateEventTypes.Policies;
+
+namespace ModerationBot;
+
+public class ModerationBot(AuthenticatedHomeserverGeneric hs, ILogger<ModerationBot> logger, ModerationBotConfiguration configuration,
+    HomeserverResolverService hsResolver, PolicyEngine engine) : IHostedService {
+    private readonly IEnumerable<ICommand> _commands;
+
+    private Task _listenerTask;
+
+    // private GenericRoom _policyRoom;
+    private GenericRoom _logRoom;
+    private GenericRoom _controlRoom;
+
+    /// <summary>Triggered when the application host is ready to start the service.</summary>
+    /// <param name="cancellationToken">Indicates that the start process has been aborted.</param>
+    public async Task StartAsync(CancellationToken cancellationToken) {
+        _listenerTask = Run(cancellationToken);
+        logger.LogInformation("Bot started!");
+    }
+
+    private async Task Run(CancellationToken cancellationToken) {
+        if (Directory.Exists("bot_data/cache"))
+            Directory.GetFiles("bot_data/cache").ToList().ForEach(File.Delete);
+
+        BotData botData;
+
+        try {
+            logger.LogInformation("Fetching bot account data...");
+            botData = await hs.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+            logger.LogInformation("Got bot account data...");
+        }
+        catch (Exception e) {
+            logger.LogInformation("Could not fetch bot account data... {}", e.Message);
+            if (e is not MatrixException { ErrorCode: "M_NOT_FOUND" }) {
+                logger.LogError("{}", e.ToString());
+                throw;
+            }
+
+            botData = null;
+        }
+
+        botData = await FirstRunTasks.ConstructBotData(hs, configuration, botData);
+
+        // _policyRoom = hs.GetRoom(botData.PolicyRoom ?? botData.ControlRoom);
+        _logRoom = hs.GetRoom(botData.LogRoom ?? botData.ControlRoom);
+        _controlRoom = hs.GetRoom(botData.ControlRoom);
+        foreach (var configurationAdmin in configuration.Admins) {
+            var pls = await _controlRoom.GetPowerLevelsAsync();
+            pls.SetUserPowerLevel(configurationAdmin, pls.GetUserPowerLevel(hs.UserId));
+            await _controlRoom.SendStateEventAsync(RoomPowerLevelEventContent.EventId, pls);
+        }
+        var syncHelper = new SyncHelper(hs);
+
+        List<string> admins = new();
+
+#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
+        Task.Run(async () => {
+            while (!cancellationToken.IsCancellationRequested) {
+                var controlRoomMembers = _controlRoom.GetMembersAsync();
+                await foreach (var member in controlRoomMembers) {
+                    if ((member.TypedContent as RoomMemberEventContent)?
+                        .Membership == "join") admins.Add(member.StateKey);
+                }
+
+                await Task.Delay(TimeSpan.FromMinutes(5), cancellationToken);
+            }
+        }, cancellationToken);
+#pragma warning restore CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
+
+        syncHelper.InviteReceivedHandlers.Add(async Task (args) => {
+            var inviteEvent =
+                args.Value.InviteState.Events.FirstOrDefault(x =>
+                    x.Type == "m.room.member" && x.StateKey == hs.UserId);
+            logger.LogInformation("Got invite to {RoomId} by {Sender} with reason: {Reason}", args.Key, inviteEvent!.Sender,
+                (inviteEvent.TypedContent as RoomMemberEventContent)!.Reason);
+            await _logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Bot invited to {MessageFormatter.HtmlFormatMention(args.Key)} by {MessageFormatter.HtmlFormatMention(inviteEvent.Sender)}"));
+            if (admins.Contains(inviteEvent.Sender)) {
+                try {
+                    await _logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Joining {MessageFormatter.HtmlFormatMention(args.Key)}..."));
+                    var senderProfile = await hs.GetProfileAsync(inviteEvent.Sender);
+                    await hs.GetRoom(args.Key).JoinAsync(reason: $"I was invited by {senderProfile.DisplayName ?? inviteEvent.Sender}!");
+                }
+                catch (Exception e) {
+                    logger.LogError("{}", e.ToString());
+                    await _logRoom.SendMessageEventAsync(MessageFormatter.FormatException("Could not join room", e));
+                    await hs.GetRoom(args.Key).LeaveAsync(reason: "I was unable to join the room: " + e);
+                }
+            }
+        });
+        
+        syncHelper.TimelineEventHandlers.Add(async @event => {
+            var room = hs.GetRoom(@event.RoomId);
+            try {
+                logger.LogInformation(
+                    "Got timeline event in {}: {}", @event.RoomId, @event.ToJson(indent: true, ignoreNull: true));
+
+                if (@event != null && (
+                        @event.GetType.IsAssignableTo(typeof(BasePolicy))
+                        || @event.GetType.IsAssignableTo(typeof(PolicyRuleEventContent))
+                    ))
+                    await engine.ReloadActivePolicyListById(@event.RoomId);
+                
+                var rules = await engine.GetMatchingPolicies(@event);
+                foreach (var matchedRule in rules) {
+                    await _logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccessJson(
+                        $"{MessageFormatter.HtmlFormatMessageLink(eventId: @event.EventId, roomId: room.RoomId, displayName: "Event")} matched {MessageFormatter.HtmlFormatMessageLink(eventId: @matchedRule.OriginalEvent.EventId, roomId: matchedRule.PolicyList.Room.RoomId, displayName: "rule")}", @matchedRule.OriginalEvent.RawContent));
+                }
+
+                if (configuration.DemoMode) {
+                    // foreach (var matchedRule in rules) {
+                        // await room.SendMessageEventAsync(MessageFormatter.FormatSuccessJson(
+                            // $"{MessageFormatter.HtmlFormatMessageLink(eventId: @event.EventId, roomId: room.RoomId, displayName: "Event")} matched {MessageFormatter.HtmlFormatMessageLink(eventId: @matchedRule.EventId, roomId: matchedRule.RoomId, displayName: "rule")}", @matchedRule.RawContent));
+                    // }
+                    return;
+                }
+//
+//                 if (@event is { Type: "m.room.message", TypedContent: RoomMessageEventContent message }) {
+//                     if (message is { MessageType: "m.image" }) {
+//                         //check media
+//                         // var matchedPolicy = await CheckMedia(@event);
+//                         var matchedPolicy = rules.FirstOrDefault();
+//                         if (matchedPolicy is null) return;
+//                         var matchedpolicyData = matchedPolicy.TypedContent as MediaPolicyEventContent;
+//                         await _logRoom.SendMessageEventAsync(
+//                             new RoomMessageEventContent(
+//                                 body:
+//                                 $"User {MessageFormatter.HtmlFormatMention(@event.Sender)} posted an image in {MessageFormatter.HtmlFormatMention(room.RoomId)} that matched rule {matchedPolicy.StateKey}, applying action {matchedpolicyData.Recommendation}, as described in rule: {matchedPolicy.RawContent!.ToJson(ignoreNull: true)}",
+//                                 messageType: "m.text") {
+//                                 Format = "org.matrix.custom.html",
+//                                 FormattedBody =
+//                                     $"<font color=\"#FFFF00\">User {MessageFormatter.HtmlFormatMention(@event.Sender)} posted an image in {MessageFormatter.HtmlFormatMention(room.RoomId)} that matched rule {matchedPolicy.StateKey}, applying action {matchedpolicyData.Recommendation}, as described in rule: <pre>{matchedPolicy.RawContent!.ToJson(ignoreNull: true)}</pre></font>"
+//                             });
+//                         switch (matchedpolicyData.Recommendation) {
+//                             case "warn_admins": {
+//                                 await _controlRoom.SendMessageEventAsync(
+//                                     new RoomMessageEventContent(
+//                                         body: $"{string.Join(' ', admins)}\nUser {MessageFormatter.HtmlFormatMention(@event.Sender)} posted a banned image {message.Url}",
+//                                         messageType: "m.text") {
+//                                         Format = "org.matrix.custom.html",
+//                                         FormattedBody = $"{string.Join(' ', admins.Select(u => MessageFormatter.HtmlFormatMention(u)))}\n" +
+//                                                         $"<font color=\"#FF0000\">User {MessageFormatter.HtmlFormatMention(@event.Sender)} posted a banned image <a href=\"{message.Url}\">{message.Url}</a></font>"
+//                                     });
+//                                 break;
+//                             }
+//                             case "warn": {
+//                                 await room.SendMessageEventAsync(
+//                                     new RoomMessageEventContent(
+//                                         body: $"Please be careful when posting this image: {matchedpolicyData.Reason ?? "No reason specified"}",
+//                                         messageType: "m.text") {
+//                                         Format = "org.matrix.custom.html",
+//                                         FormattedBody =
+//                                             $"<font color=\"#FFFF00\">Please be careful when posting this image: {matchedpolicyData.Reason ?? "No reason specified"}</a></font>"
+//                                     });
+//                                 break;
+//                             }
+//                             case "redact": {
+//                                 await room.RedactEventAsync(@event.EventId, matchedpolicyData.Reason ?? "No reason specified");
+//                                 break;
+//                             }
+//                             case "spoiler": {
+//                                 // <blockquote>
+//                                 //  <a href=\"https://matrix.to/#/@emma:rory.gay\">@emma:rory.gay</a><br>
+//                                 //  <a href=\"https://codeberg.org/crimsonfork/CN\"></a>
+//                                 //  <font color=\"#dc143c\" data-mx-color=\"#dc143c\">
+//                                 //      <b>CN</b>
+//                                 //  </font>:
+//                                 //  <a href=\"https://the-apothecary.club/_matrix/media/v3/download/rory.gay/sLkdxUhipiQaFwRkXcPSRwdg\">test</a><br>
+//                                 //  <span data-mx-spoiler=\"\"><a href=\"https://the-apothecary.club/_matrix/media/v3/download/rory.gay/sLkdxUhipiQaFwRkXcPSRwdg\">
+//                                 //      <img src=\"mxc://rory.gay/sLkdxUhipiQaFwRkXcPSRwdg\" height=\"69\"></a>
+//                                 //  </span>
+//                                 // </blockquote>
+//                                 await room.SendMessageEventAsync(
+//                                     new RoomMessageEventContent(
+//                                         body:
+//                                         $"Please be careful when posting this image: {matchedpolicyData.Reason}, I have spoilered it for you:",
+//                                         messageType: "m.text") {
+//                                         Format = "org.matrix.custom.html",
+//                                         FormattedBody =
+//                                             $"<font color=\"#FFFF00\">Please be careful when posting this image: {matchedpolicyData.Reason}, I have spoilered it for you:</a></font>"
+//                                     });
+//                                 var imageUrl = message.Url;
+//                                 await room.SendMessageEventAsync(
+//                                     new RoomMessageEventContent(body: $"CN: {imageUrl}",
+//                                         messageType: "m.text") {
+//                                         Format = "org.matrix.custom.html",
+//                                         FormattedBody = $"""
+//                                                              <blockquote>
+//                                                                 <font color=\"#dc143c\" data-mx-color=\"#dc143c\">
+//                                                                     <b>CN</b>
+//                                                                 </font>:
+//                                                                 <a href=\"{imageUrl}\">{matchedpolicyData.Reason}</a><br>
+//                                                                 <span data-mx-spoiler=\"\">
+//                                                                     <a href=\"{imageUrl}\">
+//                                                                         <img src=\"{imageUrl}\" height=\"69\">
+//                                                                     </a>
+//                                                                 </span>
+//                                                              </blockquote>
+//                                                          """
+//                                     });
+//                                 await room.RedactEventAsync(@event.EventId, "Automatically spoilered: " + matchedpolicyData.Reason);
+//                                 break;
+//                             }
+//                             case "mute": {
+//                                 await room.RedactEventAsync(@event.EventId, matchedpolicyData.Reason);
+//                                 //change powerlevel to -1
+//                                 var currentPls = await room.GetPowerLevelsAsync();
+//                                 if (currentPls is null) {
+//                                     logger.LogWarning("Unable to get power levels for {room}", room.RoomId);
+//                                     await _logRoom.SendMessageEventAsync(
+//                                         MessageFormatter.FormatError($"Unable to get power levels for {MessageFormatter.HtmlFormatMention(room.RoomId)}"));
+//                                     return;
+//                                 }
+//
+//                                 currentPls.Users ??= new();
+//                                 currentPls.Users[@event.Sender] = -1;
+//                                 await room.SendStateEventAsync("m.room.power_levels", currentPls);
+//                                 break;
+//                             }
+//                             case "kick": {
+//                                 await room.RedactEventAsync(@event.EventId, matchedpolicyData.Reason);
+//                                 await room.KickAsync(@event.Sender, matchedpolicyData.Reason);
+//                                 break;
+//                             }
+//                             case "ban": {
+//                                 await room.RedactEventAsync(@event.EventId, matchedpolicyData.Reason);
+//                                 await room.BanAsync(@event.Sender, matchedpolicyData.Reason);
+//                                 break;
+//                             }
+//                             default: {
+//                                 throw new ArgumentOutOfRangeException("recommendation",
+//                                     $"Unknown response type {matchedpolicyData.Recommendation}!");
+//                             }
+//                         }
+//                     }
+//                 }
+            }
+            catch (Exception e) {
+                logger.LogError("{}", e.ToString());
+                await _controlRoom.SendMessageEventAsync(
+                    MessageFormatter.FormatException($"Unable to process event in {MessageFormatter.HtmlFormatMention(room.RoomId)}", e));
+                await _logRoom.SendMessageEventAsync(
+                    MessageFormatter.FormatException($"Unable to process event in {MessageFormatter.HtmlFormatMention(room.RoomId)}", e));
+                await using var stream = new MemoryStream(e.ToString().AsBytes().ToArray());
+                await _controlRoom.SendFileAsync("error.log.cs", stream);
+                await _logRoom.SendFileAsync("error.log.cs", stream);
+            }
+        });
+        await engine.ReloadActivePolicyLists();
+        await syncHelper.RunSyncLoopAsync();
+    }
+
+    /// <summary>Triggered when the application host is performing a graceful shutdown.</summary>
+    /// <param name="cancellationToken">Indicates that the shutdown process should no longer be graceful.</param>
+    public async Task StopAsync(CancellationToken cancellationToken) {
+        logger.LogInformation("Shutting down bot!");
+    }
+
+}
\ No newline at end of file
diff --git a/ExampleBots/ModerationBot/ModerationBot.csproj b/ExampleBots/ModerationBot/ModerationBot.csproj
new file mode 100644
index 0000000..5c8f8ff
--- /dev/null
+++ b/ExampleBots/ModerationBot/ModerationBot.csproj
@@ -0,0 +1,33 @@
+<Project Sdk="Microsoft.NET.Sdk">

+

+  <PropertyGroup>

+    <OutputType>Exe</OutputType>

+    <TargetFramework>net8.0</TargetFramework>

+    <LangVersion>preview</LangVersion>

+    <ImplicitUsings>enable</ImplicitUsings>

+    <Nullable>enable</Nullable>

+    <PublishAot>false</PublishAot>

+    <InvariantGlobalization>true</InvariantGlobalization>

+<!--    <PublishTrimmed>true</PublishTrimmed>-->

+<!--    <PublishReadyToRun>true</PublishReadyToRun>-->

+<!--    <PublishSingleFile>true</PublishSingleFile>-->

+<!--    <PublishReadyToRunShowWarnings>true</PublishReadyToRunShowWarnings>-->

+<!--    <PublishTrimmedShowLinkerSizeComparison>true</PublishTrimmedShowLinkerSizeComparison>-->

+<!--    <PublishTrimmedShowLinkerSizeComparisonWarnings>true</PublishTrimmedShowLinkerSizeComparisonWarnings>-->

+  </PropertyGroup>

+

+  <ItemGroup>

+<!--      <ProjectReference Include="..\..\..\ArcaneLibs\ArcaneLibs\ArcaneLibs.csproj" />-->

+      <ProjectReference Include="..\..\LibMatrix\LibMatrix.csproj" />

+      <ProjectReference Include="..\..\Utilities\LibMatrix.Utilities.Bot\LibMatrix.Utilities.Bot.csproj" />

+  </ItemGroup>

+

+  <ItemGroup>

+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0" />

+  </ItemGroup>

+  <ItemGroup>

+    <Content Include="appsettings*.json">

+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>

+    </Content>

+  </ItemGroup>

+</Project>

diff --git a/ExampleBots/ModerationBot/ModerationBotConfiguration.cs b/ExampleBots/ModerationBot/ModerationBotConfiguration.cs
new file mode 100644
index 0000000..415b581
--- /dev/null
+++ b/ExampleBots/ModerationBot/ModerationBotConfiguration.cs
@@ -0,0 +1,10 @@
+using Microsoft.Extensions.Configuration;
+
+namespace ModerationBot;
+
+public class ModerationBotConfiguration {
+    public ModerationBotConfiguration(IConfiguration config) => config.GetRequiredSection("ModerationBot").Bind(this);
+
+    public List<string> Admins { get; set; } = new();
+    public bool DemoMode { get; set; } = false;
+}
diff --git a/ExampleBots/ModerationBot/PolicyEngine.cs b/ExampleBots/ModerationBot/PolicyEngine.cs
new file mode 100644
index 0000000..5311637
--- /dev/null
+++ b/ExampleBots/ModerationBot/PolicyEngine.cs
@@ -0,0 +1,269 @@
+using System.Diagnostics;
+using System.Security.Cryptography;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using ArcaneLibs.Extensions;
+using LibMatrix;
+using LibMatrix.EventTypes.Spec;
+using LibMatrix.EventTypes.Spec.State;
+using LibMatrix.Helpers;
+using LibMatrix.Homeservers;
+using LibMatrix.Interfaces;
+using LibMatrix.RoomTypes;
+using LibMatrix.Services;
+using ModerationBot.AccountData;
+using ModerationBot.StateEventTypes;
+using Microsoft.Extensions.Logging;
+using ModerationBot.StateEventTypes.Policies;
+using ModerationBot.StateEventTypes.Policies.Implementations;
+
+namespace ModerationBot;
+
+public class PolicyEngine(AuthenticatedHomeserverGeneric hs, ILogger<ModerationBot> logger, ModerationBotConfiguration configuration, HomeserverResolverService hsResolver) {
+    private Dictionary<string, PolicyList> PolicyListAccountData { get; set; } = new();
+    public List<PolicyList> ActivePolicyLists { get; set; } = new();
+    public List<BasePolicy> ActivePolicies { get; set; } = new();
+    public Dictionary<string, List<BasePolicy>> ActivePoliciesByType { get; set; } = new();
+    private GenericRoom? _logRoom;
+    private GenericRoom? _controlRoom;
+
+    public async Task ReloadActivePolicyLists() {
+        var sw = Stopwatch.StartNew();
+
+        var botData = await hs.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
+        _logRoom ??= hs.GetRoom(botData.LogRoom ?? botData.ControlRoom);
+        _controlRoom ??= hs.GetRoom(botData.ControlRoom);
+
+        await _controlRoom?.SendMessageEventAsync(MessageFormatter.FormatSuccess("Reloading policy lists!"))!;
+        await _logRoom?.SendMessageEventAsync(MessageFormatter.FormatSuccess("Reloading policy lists!"))!;
+
+        var progressMessage = await _logRoom?.SendMessageEventAsync(MessageFormatter.FormatSuccess("0/? policy lists loaded"))!;
+
+        var policyLists = new List<PolicyList>();
+        try {
+            PolicyListAccountData = await hs.GetAccountDataAsync<Dictionary<string, PolicyList>>("gay.rory.moderation_bot.policy_lists");
+        }
+        catch (MatrixException e) {
+            if (e is not { ErrorCode: "M_NOT_FOUND" }) throw;
+        }
+
+        if (!PolicyListAccountData.ContainsKey(botData.DefaultPolicyRoom)) {
+            PolicyListAccountData.Add(botData.DefaultPolicyRoom, new PolicyList() {
+                Trusted = true
+            });
+            await hs.SetAccountDataAsync("gay.rory.moderation_bot.policy_lists", PolicyListAccountData);
+        }
+
+        var loadTasks = new List<Task<PolicyList>>();
+        foreach (var (roomId, policyList) in PolicyListAccountData) {
+            var room = hs.GetRoom(roomId);
+            loadTasks.Add(LoadPolicyListAsync(room, policyList));
+        }
+
+        await foreach (var policyList in loadTasks.ToAsyncEnumerable()) {
+            policyLists.Add(policyList);
+
+            if (policyList.Policies.Count >= 256 || policyLists.Count == PolicyListAccountData.Count) {
+                var progressMsgContent = MessageFormatter.FormatSuccess($"{policyLists.Count}/{PolicyListAccountData.Count} policy lists loaded, " +
+                                                                        $"{policyLists.Sum(x => x.Policies.Count)} policies total, {sw.Elapsed} elapsed.")
+                    .SetReplaceRelation<RoomMessageEventContent>(progressMessage.EventId);
+                
+                _logRoom?.SendMessageEventAsync(progressMsgContent);
+            }
+        }
+
+        // Console.WriteLine($"Reloaded policy list data in {sw.Elapsed}");
+        // await _logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Done fetching {policyLists.Count} policy lists in {sw.Elapsed}!"));
+
+        ActivePolicyLists = policyLists;
+        ActivePolicies = await GetActivePolicies();
+    }
+
+    private async Task<PolicyList> LoadPolicyListAsync(GenericRoom room, PolicyList policyList) {
+        policyList.Room = room;
+        policyList.Policies.Clear();
+
+        var stateEvents = room.GetFullStateAsync();
+        await foreach (var stateEvent in stateEvents) {
+            if (stateEvent != null && (
+                    stateEvent.GetType.IsAssignableTo(typeof(BasePolicy))
+                    || stateEvent.GetType.IsAssignableTo(typeof(PolicyRuleEventContent))
+                )) {
+                policyList.Policies.Add(stateEvent);
+            }
+        }
+
+        // if (policyList.Policies.Count >= 1)
+        // await _logRoom?.SendMessageEventAsync(
+        // MessageFormatter.FormatSuccess($"Loaded {policyList.Policies.Count} policies for {MessageFormatter.HtmlFormatMention(room.RoomId)}!"))!;
+
+        return policyList;
+    }
+    
+    
+    public async Task ReloadActivePolicyListById(string roomId) {
+        if (!ActivePolicyLists.Any(x => x.Room.RoomId == roomId)) return;
+        await LoadPolicyListAsync(hs.GetRoom(roomId), ActivePolicyLists.Single(x => x.Room.RoomId == roomId));
+        ActivePolicies = await GetActivePolicies();
+    }
+
+    public async Task<List<BasePolicy>> GetActivePolicies() {
+        var sw = Stopwatch.StartNew();
+        List<BasePolicy> activePolicies = new();
+
+        foreach (var activePolicyList in ActivePolicyLists) {
+            foreach (var policyEntry in activePolicyList.Policies) {
+                // TODO: implement rule translation
+                BasePolicy policy = policyEntry.TypedContent is BasePolicy ? policyEntry.TypedContent as BasePolicy : policyEntry.RawContent.Deserialize<UnknownPolicy>();
+                if (policy.Entity is null) continue;
+                policy.PolicyList = activePolicyList;
+                policy.OriginalEvent = policyEntry;
+                activePolicies.Add(policy);
+            }
+        }
+
+        Console.WriteLine($"Translated policy list data in {sw.Elapsed}");
+        ActivePoliciesByType = activePolicies.GroupBy(x => x.GetType().Name).ToDictionary(x => x.Key, x => x.ToList());
+        await _logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Translated policy list data in {sw.GetElapsedAndRestart()}"));
+        // await _logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Built policy type map in {sw.GetElapsedAndRestart()}"));
+
+        var summary = SummariseStateTypeCounts(activePolicies.Select(x => x.OriginalEvent).ToList());
+        await _logRoom?.SendMessageEventAsync(new RoomMessageEventContent() {
+            Body = summary.Raw,
+            FormattedBody = summary.Html,
+            Format = "org.matrix.custom.html"
+        })!;
+
+        return activePolicies;
+    }
+
+    public async Task<List<BasePolicy>> GetMatchingPolicies(StateEventResponse @event) {
+        List<BasePolicy> matchingPolicies = new();
+        if (@event.Sender == @hs.UserId) return matchingPolicies; //ignore self at all costs
+        
+        if (ActivePoliciesByType.TryGetValue(nameof(ServerPolicyRuleEventContent), out var serverPolicies)) {
+            var userServer = @event.Sender.Split(':', 2)[1];
+            matchingPolicies.AddRange(serverPolicies.Where(x => x.Entity == userServer));
+        }
+
+        if (ActivePoliciesByType.TryGetValue(nameof(UserPolicyRuleEventContent), out var userPolicies)) {
+            matchingPolicies.AddRange(userPolicies.Where(x => x.Entity == @event.Sender));
+        }
+
+        if (@event.TypedContent is RoomMessageEventContent msgContent) {
+            matchingPolicies.AddRange(await CheckMessageContent(@event));
+            if (msgContent.MessageType == "m.text" || msgContent.MessageType == "m.notice") ; //TODO: implement word etc. filters
+            if (msgContent.MessageType == "m.image" || msgContent.MessageType == "m.file" || msgContent.MessageType == "m.audio" || msgContent.MessageType == "m.video")
+                matchingPolicies.AddRange(await CheckMedia(@event));
+        }
+
+        return matchingPolicies;
+    }
+
+#region Policy matching
+
+    private async Task<List<BasePolicy>> CheckMessageContent(StateEventResponse @event) {
+        var matchedRules = new List<BasePolicy>();
+        var msgContent = @event.TypedContent as RoomMessageEventContent;
+        
+        if (ActivePoliciesByType.TryGetValue(nameof(MessagePolicyContainsText), out var messageContainsPolicies))
+            foreach (var policy in messageContainsPolicies) {
+                if((@msgContent?.Body?.ToLowerInvariant().Contains(policy.Entity.ToLowerInvariant()) ?? false) || (@msgContent?.FormattedBody?.ToLowerInvariant().Contains(policy.Entity.ToLowerInvariant()) ?? false))
+                    matchedRules.Add(policy);
+            }
+            
+        
+        return matchedRules;
+    }
+
+    private async Task<List<BasePolicy>> CheckMedia(StateEventResponse @event) {
+        var matchedRules = new List<BasePolicy>();
+        var hashAlgo = SHA3_256.Create();
+
+        var mxcUri = @event.RawContent["url"].GetValue<string>();
+
+        //check server policies before bothering with hashes
+        if (ActivePoliciesByType.TryGetValue(nameof(MediaPolicyHomeserver), out var mediaHomeserverPolicies))
+            foreach (var policy in mediaHomeserverPolicies) {
+                logger.LogInformation("Checking rule {rule}: {data}", policy.OriginalEvent.StateKey, policy.OriginalEvent.TypedContent.ToJson(ignoreNull: true, indent: false));
+                policy.Entity = policy.Entity.Replace("\\*", ".*").Replace("\\?", ".");
+                var regex = new Regex($"mxc://({policy.Entity})/.*", RegexOptions.Compiled | RegexOptions.IgnoreCase);
+                if (regex.IsMatch(@event.RawContent["url"]!.GetValue<string>())) {
+                    logger.LogInformation("{url} matched rule {rule}", @event.RawContent["url"], policy.ToJson(ignoreNull: true));
+                    matchedRules.Add(policy);
+                    // continue;
+                }
+            }
+
+        var resolvedUri = await hsResolver.ResolveMediaUri(mxcUri.Split('/')[2], mxcUri);
+        var uriHash = hashAlgo.ComputeHash(mxcUri.AsBytes().ToArray());
+        byte[]? fileHash = null;
+
+        try {
+            fileHash = await hashAlgo.ComputeHashAsync(await hs.ClientHttpClient.GetStreamAsync(resolvedUri));
+        }
+        catch (Exception ex) {
+            await _logRoom.SendMessageEventAsync(
+                MessageFormatter.FormatException($"Error calculating file hash for {mxcUri} via {mxcUri.Split('/')[2]} ({resolvedUri}), retrying via {hs.BaseUrl}...",
+                    ex));
+            try {
+                resolvedUri = await hsResolver.ResolveMediaUri(hs.BaseUrl, mxcUri);
+                fileHash = await hashAlgo.ComputeHashAsync(await hs.ClientHttpClient.GetStreamAsync(resolvedUri));
+            }
+            catch (Exception ex2) {
+                await _logRoom.SendMessageEventAsync(
+                    MessageFormatter.FormatException($"Error calculating file hash via {hs.BaseUrl} ({resolvedUri})!", ex2));
+            }
+        }
+
+        logger.LogInformation("Checking media {url} with hash {hash}", resolvedUri, fileHash);
+
+        if (ActivePoliciesByType.ContainsKey(nameof(MediaPolicyFile)))
+            foreach (MediaPolicyFile policy in ActivePoliciesByType[nameof(MediaPolicyFile)]) {
+                logger.LogInformation("Checking rule {rule}: {data}", policy.OriginalEvent.StateKey, policy.OriginalEvent.TypedContent.ToJson(ignoreNull: true, indent: false));
+                if (policy.Entity is not null && Convert.ToBase64String(uriHash).SequenceEqual(policy.Entity)) {
+                    logger.LogInformation("{url} matched rule {rule} by uri hash", @event.RawContent["url"], policy.ToJson(ignoreNull: true));
+                    matchedRules.Add(policy);
+                    // continue;
+                }
+                else logger.LogInformation("uri hash {uriHash} did not match rule's {ruleUriHash}", Convert.ToHexString(uriHash), policy.Entity);
+
+                if (policy.FileHash is not null && fileHash is not null && policy.FileHash == Convert.ToBase64String(fileHash)) {
+                    logger.LogInformation("{url} matched rule {rule} by file hash", @event.RawContent["url"], policy.ToJson(ignoreNull: true));
+                    matchedRules.Add(policy);
+                    // continue;
+                }
+                else logger.LogInformation("file hash {fileHash} did not match rule's {ruleFileHash}", Convert.ToBase64String(fileHash), policy.FileHash);
+
+                //check pixels every 10% of the way through the image using ImageSharp
+                // var image = Image.Load(await _hs._httpClient.GetStreamAsync(resolvedUri));
+            }
+        else logger.LogInformation("No active media file policies");        
+        // logger.LogInformation("{url} did not match any rules", @event.RawContent["url"]);
+
+        return matchedRules;
+    }
+
+#endregion
+
+#region Internal code
+
+#region Summarisation
+
+    private static (string Raw, string Html) SummariseStateTypeCounts(IList<StateEventResponse> states) {
+        string raw = "Count | State type | Mapped type", html = "<table><tr><th>Count</th><th>State type</th><th>Mapped type</th></tr>";
+        var groupedStates = states.GroupBy(x => x.Type).ToDictionary(x => x.Key, x => x.ToList()).OrderByDescending(x => x.Value.Count);
+        foreach (var (type, stateGroup) in groupedStates) {
+            raw += $"{stateGroup.Count} | {type} | {stateGroup[0].GetType.Name}";
+            html += $"<tr><td>{stateGroup.Count}</td><td>{type}</td><td>{stateGroup[0].GetType.Name}</td></tr>";
+        }
+
+        html += "</table>";
+        return (raw, html);
+    }
+
+#endregion
+
+#endregion
+
+}
\ No newline at end of file
diff --git a/ExampleBots/ModerationBot/PolicyList.cs b/ExampleBots/ModerationBot/PolicyList.cs
new file mode 100644
index 0000000..a3052bd
--- /dev/null
+++ b/ExampleBots/ModerationBot/PolicyList.cs
@@ -0,0 +1,17 @@
+using System.Text.Json.Serialization;
+using LibMatrix;
+using LibMatrix.RoomTypes;
+using ModerationBot.StateEventTypes;
+
+namespace ModerationBot;
+
+public class PolicyList {
+    [JsonIgnore]
+    public GenericRoom Room { get; set; }
+
+    [JsonPropertyName("trusted")]
+    public bool Trusted { get; set; } = false;
+
+    [JsonIgnore]
+    public List<StateEventResponse> Policies { get; set; } = new();
+}
diff --git a/ExampleBots/ModerationBot/Program.cs b/ExampleBots/ModerationBot/Program.cs
new file mode 100644
index 0000000..b41b0be
--- /dev/null
+++ b/ExampleBots/ModerationBot/Program.cs
@@ -0,0 +1,28 @@
+// See https://aka.ms/new-console-template for more information

+

+using LibMatrix.Services;

+using LibMatrix.Utilities.Bot;

+using ModerationBot;

+using Microsoft.Extensions.DependencyInjection;

+using Microsoft.Extensions.Hosting;

+

+Console.WriteLine("Hello, World!");

+

+var host = Host.CreateDefaultBuilder(args).ConfigureServices((_, services) => {

+    services.AddScoped<TieredStorageService>(x =>

+        new TieredStorageService(

+            cacheStorageProvider: new FileStorageProvider("bot_data/cache/"),

+            dataStorageProvider: new FileStorageProvider("bot_data/data/")

+        )

+    );

+    services.AddSingleton<ModerationBotConfiguration>();

+

+    services.AddRoryLibMatrixServices();

+    services.AddBot(withCommands: true);

+

+    services.AddSingleton<PolicyEngine>();

+    

+    services.AddHostedService<ModerationBot.ModerationBot>();

+}).UseConsoleLifetime().Build();

+

+await host.RunAsync();

diff --git a/ExampleBots/ModerationBot/Properties/launchSettings.json b/ExampleBots/ModerationBot/Properties/launchSettings.json
new file mode 100644
index 0000000..997e294
--- /dev/null
+++ b/ExampleBots/ModerationBot/Properties/launchSettings.json
@@ -0,0 +1,26 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "Default": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "environmentVariables": {
+
+      }
+    },
+    "Development": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "environmentVariables": {
+        "DOTNET_ENVIRONMENT": "Development"
+      }
+    },
+    "Local config": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "environmentVariables": {
+        "DOTNET_ENVIRONMENT": "Local"
+      }
+    }
+  }
+}
diff --git a/ExampleBots/ModerationBot/StateEventTypes/Policies/BasePolicy.cs b/ExampleBots/ModerationBot/StateEventTypes/Policies/BasePolicy.cs
new file mode 100644
index 0000000..94b2f63
--- /dev/null
+++ b/ExampleBots/ModerationBot/StateEventTypes/Policies/BasePolicy.cs
@@ -0,0 +1,52 @@
+using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
+using LibMatrix;
+using LibMatrix.Interfaces;
+
+namespace ModerationBot.StateEventTypes.Policies;
+
+public abstract class BasePolicy : EventContent {
+    /// <summary>
+    ///     Entity this policy applies to, null if event was redacted
+    /// </summary>
+    [JsonPropertyName("entity")]
+    public string? Entity { get; set; }
+
+    /// <summary>
+    ///     Reason this policy exists
+    /// </summary>
+    [JsonPropertyName("reason")]
+    public string? Reason { get; set; }
+
+    /// <summary>
+    ///     Suggested action to take, one of `ban`, `kick`, `mute`, `redact`, `spoiler`, `warn` or `warn_admins`
+    /// </summary>
+    [JsonPropertyName("recommendation")]
+    [AllowedValues("ban", "kick", "mute", "redact", "spoiler", "warn", "warn_admins")]
+    public string Recommendation { get; set; } = "warn";
+
+    /// <summary>
+    ///     Expiry time in milliseconds since the unix epoch, or null if the ban has no expiry.
+    /// </summary>
+    [JsonPropertyName("support.feline.policy.expiry.rev.2")] //stable prefix: expiry, msc pending
+    public long? Expiry { get; set; }
+
+    //utils
+    /// <summary>
+    ///     Readable expiry time, provided for easy interaction
+    /// </summary>
+    [JsonPropertyName("gay.rory.matrix_room_utils.readable_expiry_time_utc")]
+    public DateTime? ExpiryDateTime {
+        get => Expiry == null ? null : DateTimeOffset.FromUnixTimeMilliseconds(Expiry.Value).DateTime;
+        set => Expiry = value is null ? null : ((DateTimeOffset)value).ToUnixTimeMilliseconds();
+    }
+
+#region Internal metadata
+
+    [JsonIgnore]
+    public PolicyList PolicyList { get; set; }
+
+    public StateEventResponse OriginalEvent { get; set; }
+
+#endregion
+}
diff --git a/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MediaPolicyFile.cs b/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MediaPolicyFile.cs
new file mode 100644
index 0000000..c5b6ef2
--- /dev/null
+++ b/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MediaPolicyFile.cs
@@ -0,0 +1,16 @@
+using System.Text.Json.Serialization;
+using LibMatrix.EventTypes;
+
+namespace ModerationBot.StateEventTypes.Policies.Implementations;
+
+/// <summary>
+///     File policy event, entity is the MXC URI of the file, hashed with SHA3-256.
+/// </summary>
+[MatrixEvent(EventName = "gay.rory.moderation.rule.media")]
+public class MediaPolicyFile : BasePolicy {
+    /// <summary>
+    ///     Hash of the file
+    /// </summary>
+    [JsonPropertyName("file_hash")]
+    public string? FileHash { get; set; }
+}
diff --git a/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MediaPolicyHomeserver.cs b/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MediaPolicyHomeserver.cs
new file mode 100644
index 0000000..3dfd937
--- /dev/null
+++ b/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MediaPolicyHomeserver.cs
@@ -0,0 +1,11 @@
+using System.Text.Json.Serialization;
+using LibMatrix.EventTypes;
+
+namespace ModerationBot.StateEventTypes.Policies.Implementations;
+
+/// <summary>
+///     Homeserver media policy event, entity is the MXC URI of the file, hashed with SHA3-256.
+/// </summary>
+[MatrixEvent(EventName = "gay.rory.moderation.rule.media.homeserver")]
+public class MediaPolicyHomeserver : BasePolicy {
+}
diff --git a/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MessagePolicyContainsText.cs b/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MessagePolicyContainsText.cs
new file mode 100644
index 0000000..daac162
--- /dev/null
+++ b/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/MessagePolicyContainsText.cs
@@ -0,0 +1,11 @@
+using System.Text.Json.Serialization;
+using LibMatrix.EventTypes;
+
+namespace ModerationBot.StateEventTypes.Policies.Implementations;
+
+/// <summary>
+///     Text contains policy event, entity is the text to contain.
+/// </summary>
+[MatrixEvent(EventName = "gay.rory.moderation.rule.text.contains")]
+public class MessagePolicyContainsText : BasePolicy {
+}
diff --git a/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/UnknownPolicy.cs b/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/UnknownPolicy.cs
new file mode 100644
index 0000000..8dc8258
--- /dev/null
+++ b/ExampleBots/ModerationBot/StateEventTypes/Policies/Implementations/UnknownPolicy.cs
@@ -0,0 +1,10 @@
+using System.Text.Json.Serialization;
+using LibMatrix.EventTypes;
+
+namespace ModerationBot.StateEventTypes.Policies.Implementations;
+
+/// <summary>
+///     Unknown policy event, usually used for handling unknown cases
+/// </summary>
+public class UnknownPolicy : BasePolicy {
+}
diff --git a/ExampleBots/ModerationBot/appsettings.Development.json b/ExampleBots/ModerationBot/appsettings.Development.json
new file mode 100644
index 0000000..224d0da
--- /dev/null
+++ b/ExampleBots/ModerationBot/appsettings.Development.json
@@ -0,0 +1,24 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Debug",
+      "System": "Information",
+      "Microsoft": "Information"
+    }
+  },
+  "LibMatrixBot": {
+    // The homeserver to connect to
+    "Homeserver": "rory.gay",
+    // The access token to use
+    "AccessToken": "syt_xxxxxxxxxxxxxxxxx",
+    // The command prefix
+    "Prefix": "?"
+  },
+  "ModerationBot": {
+    // List of people who should be invited to the control room
+    "Admins": [
+      "@emma:conduit.rory.gay",
+      "@emma:rory.gay"
+    ]
+  }
+}
diff --git a/ExampleBots/ModerationBot/appsettings.json b/ExampleBots/ModerationBot/appsettings.json
new file mode 100644
index 0000000..6ba02f3
--- /dev/null
+++ b/ExampleBots/ModerationBot/appsettings.json
@@ -0,0 +1,9 @@
+{
+    "Logging": {
+        "LogLevel": {
+            "Default": "Debug",
+            "System": "Information",
+            "Microsoft": "Information"
+        }
+    }
+}