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This repository was archived by the owner on Oct 12, 2025. It is now read-only.

[All] feat: recived fake forward message with reply element #858

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LXY1226 wants to merge 1 commit into LagrangeDev:master from LXY1226:lxy1226-work
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View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -373,7 +373,7 @@ public override async Task Outgoing(ProtocolEvent e)
}
}

private async Task ResolveIncomingChain(MessageChain chain)
public async Task ResolveIncomingChain(MessageChain chain)
{
foreach (var entity in chain)
{
Expand Down Expand Up @@ -494,35 +494,42 @@ private async Task ResolveIncomingChain(MessageChain chain)
}
case ForwardEntity forward:
{
if (chain is { GroupUin: not null })
MessageChain? newChain = null;
if (forward.Sequence != 0)
{
var events = await Collection.Business.SendEvent(GetGroupMessageEvent.Create(
chain.GroupUin.Value,
forward.Sequence,
forward.Sequence
));

if (events.Count < 1) break;
if (events[0] is not GetGroupMessageEvent @event) break;
if (@event.ResultCode != 0) break;
if (@event.Chains.Count < 1) break;

forward.Chain = @event.Chains[0];
if (chain is { GroupUin: not null })
{
var events = await Collection.Business.SendEvent(GetGroupMessageEvent.Create(
chain.GroupUin.Value,
forward.Sequence,
forward.Sequence
));
if (events.Count != 0 &&
events[0] is GetGroupMessageEvent @event &&
@event.ResultCode == 0)
{
newChain = @event.Chains[0];
}
}
else
{
var events = await Collection.Business.SendEvent(GetC2cMessageEvent.Create(
chain.Uid ?? "",
forward.Sequence,
forward.Sequence
));
if (events.Count != 0 &&
events[0] is GetC2cMessageEvent @event &&
@event.ResultCode == 0)
{
newChain = @event.Chains[0];
}

}
}
else
if (newChain == null || newChain.Count == 0)
{
var events = await Collection.Business.SendEvent(GetC2cMessageEvent.Create(
chain.Uid ?? "",
forward.Sequence,
forward.Sequence
));

if (events.Count < 1) break;
if (events[0] is not GetC2cMessageEvent @event) break;
if (@event.ResultCode != 0) break;
if (@event.Chains.Count < 1) break;

forward.Chain = @event.Chains[0];
await ResolveIncomingChain(forward.Chain);
}

break;
Expand Down
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -583,6 +583,19 @@ public async Task<bool> SetFriendRequest(string targetUid, bool accept)

if (results.Count == 0) return (-9999, null);
var result = (MultiMsgDownloadEvent)results[0];

var tasks = new List<Task>();

if (result.Chains != null)
{
tasks.AddRange(result.Chains.Select(chain =>
Collection.Business.MessagingLogic.ResolveIncomingChain(chain)));
}

if (tasks.Count > 0)
{
await Task.WhenAll(tasks);
}

return (result.ResultCode, result.Chains);
}
Expand Down
7 changes: 5 additions & 2 deletions Lagrange.Core/Internal/Event/Message/MultiMsgDownloadEvent.cs
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,19 +9,22 @@ internal class MultiMsgDownloadEvent : ProtocolEvent
public string? ResId { get; }

public List<MessageChain>? Chains { get; }

public List<MessageChain>? OtherMessages { get; }

private MultiMsgDownloadEvent(string uid, string resId) : base(true)
{
Uid = uid;
ResId = resId;
}

private MultiMsgDownloadEvent(int resultCode, List<MessageChain> chains) : base(resultCode)
private MultiMsgDownloadEvent(int resultCode, List<MessageChain> chains, List<MessageChain> otherMessages) : base(resultCode)
{
Chains = chains;
OtherMessages = otherMessages;
}

public static MultiMsgDownloadEvent Create(string uid, string resId) => new(uid, resId);

public static MultiMsgDownloadEvent Result(int resultCode, List<MessageChain> chains) => new(resultCode, chains);
public static MultiMsgDownloadEvent Result(int resultCode, List<MessageChain> chains, List<MessageChain> otherMessages) => new(resultCode, chains, otherMessages);
}
Original file line number Diff line number Diff line change
Expand Up @@ -17,4 +17,6 @@ internal class RichMsg
[ProtoMember(4)] public int? Rand { get; set; }

[ProtoMember(5)] public int? Seq { get; set; }

// [ProtoMember(13)] public // "13": { "1": 1200, "2": 1200 } 图片尺寸
}
21 changes: 18 additions & 3 deletions Lagrange.Core/Internal/Service/Message/MultiMsgDownloadService.cs
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,10 +44,25 @@ protected override bool Parse(Span<byte> input, BotKeystore keystore, BotAppInfo
var packet = Serializer.Deserialize<RecvLongMsgResp>(input);
var inflate = GZip.Inflate(packet.Result.Payload);
var result = Serializer.Deserialize<LongMsgResult>(inflate.AsSpan());
var mainChains = new List<MessageChain>();
var otherChains = new List<MessageChain>();

var main = result.Action.First(a => a.ActionCommand == "MultiMsg");
var chains = main.ActionData.MsgBody.Select(x => MessagePacker.Parse(x, true)).ToList();
output = MultiMsgDownloadEvent.Result(0, chains);
foreach (var longMsgAction in result.Action)
{
if (longMsgAction.ActionCommand == "MultiMsg")
{
longMsgAction.ActionData.MsgBody.ForEach(x => mainChains.Add(
MessagePacker.Parse(x, true)
));
}
else
{
longMsgAction.ActionData.MsgBody.ForEach(x => otherChains.Add(MessagePacker.Parse(x, true)));
}
}


output = MultiMsgDownloadEvent.Result(0, mainChains, otherChains);
extraEvents = null;
return true;
}
Expand Down
8 changes: 6 additions & 2 deletions Lagrange.OneBot/Message/Entity/ReplySegment.cs
View file Open in desktop
Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
using System.Text.Json.Serialization;
using Lagrange.Core.Message;
using Lagrange.Core.Message.Entity;
using Lagrange.OneBot.Core.Entity.Message;
using Lagrange.OneBot.Database;

namespace Lagrange.OneBot.Message.Entity;
Expand All @@ -10,7 +11,9 @@
{
public ReplySegment() : this(0) { }

[JsonPropertyName("id")][CQProperty] public string MessageId { get; set; } = messageId.ToString();
[JsonPropertyName("id")] [CQProperty] public string MessageId { get; set; } = messageId.ToString();

[JsonPropertyName("elem")] public List<OneBotSegment> Elem { get; set; } = new List<OneBotSegment>();
}

[SegmentSubscriber(typeof(ForwardEntity), "reply")]
Expand Down Expand Up @@ -54,6 +57,7 @@
.Id);
}

return new ReplySegment { MessageId = (id ?? 0).ToString() };

return new ReplySegment { MessageId = (id ?? 0).ToString(), Elem = MessageService.Convert(forward.Chain) };

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}
}
1 change: 1 addition & 0 deletions Lagrange.OneBot/Message/MessageService.cs
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,7 @@ public MessageService(BotContext bot, LagrangeWebSvcCollection service, RealmHel
{
var instance = (SegmentBase)type.CreateInstance(false);
instance.Realm = _realm;
instance.MessageService = this;

if (_entityToFactory.TryGetValue(attribute.Entity, out var factories)) factories.Add((attribute.Type, instance));
else _entityToFactory[attribute.Entity] = [(attribute.Type, instance)];
Expand Down
2 changes: 2 additions & 0 deletions Lagrange.OneBot/Message/SegmentBase.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@ public abstract class SegmentBase
{
public RealmHelper? Realm { protected get; set; }

public MessageService? MessageService { protected get; set; } // just for reply segment inflat

public abstract void Build(MessageBuilder builder, SegmentBase segment);

public abstract SegmentBase? FromEntity(MessageChain chain, IMessageEntity entity);
Expand Down

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