//房主等待每位群成员的消息
public void host_receive(string his_name, Net_class connected_NC)
{
myFileInfo last_fileInfo = new myFileInfo(0, "");
while (true)
{
if (!connected_NC.sock.Connected)
{
return;
}
int info_length;
byte[] receive_info = connected_NC.Receive_bytes(out info_length);
string msg = Encoding.UTF8.GetString(receive_info, 1, info_length - 1);
//文字消息
if (info_length > 0 && receive_info[0] == 0)
{
add_msg2list(his_name, msg, Color.Black);
send_msg2all(his_name, msg, false);
}
//文件
else if (info_length > 0 && receive_info[0] == 2)
{
if (last_fileInfo.length == 0)
{
continue;
}
byte[] file_bytes = new byte[info_length - 1];
Buffer.BlockCopy(receive_info, 1, file_bytes, 0, info_length - 1);
host_file_list.Add(last_fileInfo, file_bytes);
add_file2list(last_fileInfo, his_name, Color.Black);
send_fileInfo2all_users(last_fileInfo, his_name);
}
//文件长度和文件名
else if (info_length > 1 && receive_info[0] == 3)
{
string[] msg_split = msg.Split('_');
long file_len;
if (!long.TryParse(msg_split[0], out file_len))
{
continue;
}
string file_name = msg_split[1];
for (int i = 2; i < msg_split.Length; i++)
{
file_name += ("_" + msg_split[i]);
}
last_fileInfo = new myFileInfo(file_len, file_name);
}
//用户退出消息
else if (info_length > 1 && receive_info[0] == 4)
{
if (msg == "q")
{
for (int i = 1; i < listView_members.Items.Count; i++)
{
string item_name = listView_members.Items[i].SubItems[1].Text;
if (item_name == his_name)
{
listView_members.Items.Remove(listView_members.Items[i]);
}
}
connected_name_NC[his_name].Close();
connected_name_NC.Remove(his_name);
return;
}
}
//请求文件
else if (info_length > 1 && receive_info[0] == 5)
{
string[] msg_split = msg.Split('_');
myFileInfo get_fileInfo = new myFileInfo();
if (!long.TryParse(msg_split[0], out get_fileInfo.length))
{
continue;
}
get_fileInfo.name = msg_split[1];
for (int i = 2; i < msg_split.Length; i++)
{
get_fileInfo.name += ("_" + msg_split[i]);
}
byte[] file_byte;
if (!host_file_list.TryGetValue(get_fileInfo, out file_byte))
{
connected_name_NC[his_name].Send_message_NumString_asy(5, "n");
}
else
{
connected_name_NC[his_name].Send_message_NumByte_asy(2, file_byte, file_byte.Length);
}
}
}
}
