fix(core): trigger after-join webhooks for invited members (#3797)

internal/rpc/group/callback.go

@@ -287,6 +287,19 @@ func (s *groupServer) webhookAfterJoinGroup(ctx context.Context, after *config.A
 	s.webhookClient.AsyncPost(ctx, cbReq.GetCallbackCommand(), cbReq, &callbackstruct.CallbackAfterJoinGroupResp{}, after)
 }
 
+func afterJoinGroupRequests(members []*model.GroupMember, reqMessage string) []*group.JoinGroupReq {
+	requests := make([]*group.JoinGroupReq, 0, len(members))
+	for _, member := range members {
+		requests = append(requests, &group.JoinGroupReq{
+			GroupID:       member.GroupID,
+			ReqMessage:    reqMessage,
+			JoinSource:    member.JoinSource,
+			InviterUserID: member.UserID,
+		})
+	}
+	return requests
+}
+
 func (s *groupServer) webhookBeforeSetGroupInfo(ctx context.Context, before *config.BeforeConfig, req *group.SetGroupInfoReq) error {
 	return webhook.WithCondition(ctx, before, func(ctx context.Context) error {
 		cbReq := &callbackstruct.CallbackBeforeSetGroupInfoReq{

internal/rpc/group/group.go

@@ -478,6 +478,9 @@ func (s *groupServer) InviteUserToGroup(ctx context.Context, req *pbgroup.Invite
 			return nil, err
 		}
 	}
+	for _, joinReq := range afterJoinGroupRequests(groupMembers, req.Reason) {
+		s.webhookAfterJoinGroup(ctx, &s.config.WebhooksConfig.AfterJoinGroup, joinReq)
+	}
 	return &pbgroup.InviteUserToGroupResp{}, nil
 }
 
@@ -898,6 +901,9 @@ func (s *groupServer) GroupApplicationResponse(ctx context.Context, req *pbgroup
 			if err := s.setMemberJoinSeq(ctx, req.GroupID, []string{req.FromUserID}); err != nil {
 				return nil, err
 			}
+			for _, joinReq := range afterJoinGroupRequests([]*model.GroupMember{member}, groupRequest.ReqMsg) {
+				s.webhookAfterJoinGroup(ctx, &s.config.WebhooksConfig.AfterJoinGroup, joinReq)
+			}
 		}
 	case constant.GroupResponseRefuse:
 		s.notification.GroupApplicationRejectedNotification(ctx, req)