之前的文章里说明了怎么让LumaQQ.NET发送长消息,这里我们看看怎么让LumaQQ.NET支持接收长消息。
其实QQ的服务器在发送长消息时,是将其拆分成几个短的消息来发送的,这点在上一篇发送长消息时,大家已经能看出来了。那么怎么将几个短消息合并成一个长消息呢。
这里主要是用到了NormalIM的TotalFragments和FragmentSequence两个属性,FragmentSequence表示这个是第几个分片,基于0的index,TotalFragments表示一共有几个分片。
由于收到消息时,不一定是按照顺序接收到的(网络延迟等原因),因此我们定一个Dictionary来管理分片。
private static Dictionary<int, Dictionary<int, byte[]>> NormalLongTextDict = new Dictionary<int, Dictionary<int, byte[]>>();
然后在接收到消息的事件里,进行判断和组装
void MessageManager_ReceiveNormalIM(object sender, LumaQQ.NET.Events.QQEventArgs<LumaQQ.NET.Packets.In.ReceiveIMPacket, OutPacket> e)
{if (e.InPacket.NormalIM.TotalFragments > 1)//如果是长消息的分片
{Dictionary<int, byte[]> TextFragment;
if (!NormalLongTextDict.ContainsKey(e.InPacket.NormalIM.MessageId))//如果字典里没有缓存这个消息id
{TextFragment = new Dictionary<int, byte[]>();
TextFragment.Add(e.InPacket.NormalIM.FragmentSequence, e.InPacket.NormalIM.MessageBytes);//将分片加入以分片id为标示的分片缓存 NormalLongTextDict.Add(e.InPacket.NormalIM.MessageId, TextFragment);//将分片缓存加入以消息id为标示的消息缓存}
else { TextFragment = NormalLongTextDict[e.InPacket.NormalIM.MessageId];//取出分片缓存TextFragment.Add(e.InPacket.NormalIM.FragmentSequence, e.InPacket.NormalIM.MessageBytes);加入新的分片
NormalLongTextDict[e.InPacket.NormalIM.MessageId] = TextFragment;放回消息缓存
}
if (TextFragment.Count == e.InPacket.NormalIM.TotalFragments)//如果所有分片都已经接收完毕
{List<byte> LongTextBytes = new List<byte>();
string LongText = "";
for (int i = 0; i < TextFragment.Count; i++)
{LongTextBytes.AddRange(TextFragment[i]);合并byte数组
}
LongText = Encoding.GetEncoding(QQGlobal.QQ_CHARSET_DEFAULT).GetString(LongTextBytes.ToArray());转为文字字符串
NormalLongTextDict.Remove(e.InPacket.NormalIM.MessageId);//删除缓存e.QQClient.MessageManager.SendIM(e.InPacket.NormalHeader.Sender, string.Format("我收到你的消息:{0}", LongText);
}
}
else { WriteError("收到好友:{0}/{1} 发来的信息:{2}", e.InPacket.NormalHeader.Sender, Nick, AnalyCustomFace(e.InPacket.NormalIM.MessageBytes));e.QQClient.MessageManager.SendIM(e.InPacket.NormalHeader.Sender, string.Format("我收到你的消息:{0}", e.InPacket.NormalIM.Message));
}
}
posted @ 2008-04-22 17:21 蓝色的风之精灵 阅读(1637) 评论(7) 编辑
默认LumaQQ.NET不支持发送长消息,只能文字量比较小的文字信息。其实在内部设计上,已经支持了分片发送的功能,只是没有去拆分实现。我们这就来自己实现它。
1.首先在QQGlobal里添加消息最长长度定义:
1: /// <summary>
2: /// 消息最大长度,QQ是最大699字节 LumaQQ里说最长是700,但是我试下来只能是699,700就会出错,不知道为什么
3: /// </summary>
4: public const int QQ_MAX_SEND_IM = 699;
2.修改MessageManager里其中2个SendIM的方法
1: /// <summary>
2: /// 发送普通信息
3: /// <remark>abu 2008-03-11 </remark>
4: /// </summary>
5: /// <param name="receiver">The receiver.</param>
6: /// <param name="message">The message.</param>
7: /// <param name="fontSytle">The font sytle.</param>
8: public void SendIM(int receiver, string message, FontStyle fontSytle)
9: {10: int MaxByte = QQGlobal.QQ_MAX_SEND_IM;//取最长长度
11: 12: 13: if (Encoding.GetEncoding(QQGlobal.QQ_CHARSET_DEFAULT).GetBytes(message).Length > MaxByte)//判断是不是要分段发送
14: {15: List<byte> messageBytes = new List<byte>();
16: messageBytes.AddRange(Utils.Util.GetBytes(message));17: messageBytes.Add(0x20);//补一个空格,不补似乎也会出问题
18: int messageSize = messageBytes.Count;
19: 20: int totalFragments = ((messageSize % MaxByte) > 0) ? (messageSize / MaxByte + 1) : (messageSize / MaxByte);//计算分片数
21: for (int fragementSequence = 0; fragementSequence < totalFragments; fragementSequence++)
22: {23: int index = fragementSequence * MaxByte;
24: int BytesSize = ((messageSize - index) > MaxByte) ? MaxByte : (messageSize - index);//不能每次都申请最大长度的byte数组,不然字体会出问题
25: byte[] messageFragementBytes = new byte[BytesSize];
26: 27: 28: messageBytes.CopyTo(index, messageFragementBytes, 0, BytesSize); 29: SendIM(receiver, messageFragementBytes, totalFragments, fragementSequence, fontSytle); 30: 31: 32: } 33: }34: else
35: { 36: SendIM(receiver, Utils.Util.GetBytes(message), 1, 0, fontSytle); 37: } 38: }39: /// <summary>
40: /// 发送普通信息
41: /// <remark>abu 2008-03-11 </remark>
42: /// </summary>
43: /// <param name="receiver">The receiver.</param>
44: /// <param name="message">The message.</param>
45: /// <param name="totalFragments">The total fragments.总分块数</param>
46: /// <param name="fragementSequence">The fragement sequence.当前当块序号</param>
47: /// <param name="fontSytle">The font sytle.</param>
48: public void SendIM(int receiver, byte[] message, int totalFragments,
49: int fragementSequence, FontStyle fontSytle)
50: {51: SendIMPacket packet = new SendIMPacket(QQUser);
52: packet.Receiver = receiver;53: packet.Message = message;//Utils.Util.GetBytes(message);
54: packet.TotalFragments = totalFragments; 55: packet.FragmentSequence = fragementSequence; 56: packet.FontStyle = fontSytle; 57: QQClient.PacketManager.SendPacket(packet, QQPort.Main.Name); 58: }posted @ 2008-04-22 13:17 蓝色的风之精灵 阅读(2053) 评论(14) 编辑

