public bool send_file_invite(string target_stu_num, string file, int file_invite_id = 99999)
{
master.refresh();
IPAddress tar_ip = find_ip(target_stu_num);
if (tar_ip != null)
{
try
{
SKMsgInfoFileInvite smifi = new SKMsgInfoFileInvite();
smifi.id = file_invite_id;
smifi.stu_num = my_stu_num;
smifi.timestamp = DateTime.Now;
smifi.type = SKMsgInfoBase.mestype.FILE_INVITE;
smifi.file_name = Path.GetFileName(file);
long len = (new FileInfo(file)).Length;
if (len > int.MaxValue)
{
throw new Exception("文件不能大于2G");
}
smifi.size = (int)len;
return(clients.SendNotFile(smifi, tar_ip, target_stu_num));
}
catch (Exception)
{
return(false);
}
}
return(false);
}
public void rev_file_invite(SKMsgInfoFileInvite e)
{
DialogResult dr = MessageBox.Show("是否接收文件？\n文件名为" + e.file_name + "\n文件大小为：" + (e.size / 1024) + "KB\n若您正在接收上一文件，将会终止传输", "接收文件确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dr != System.Windows.Forms.DialogResult.Yes)
{
core.send_response(friend.stu_num, e.id + 1);
add_text_rich1("\r\n你没有同意接收文件", Color.Blue);
}
else
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.Title = "选择保存文件位置";
sfd.FileName = e.file_name;
DialogResult drr = sfd.ShowDialog();
if (drr == System.Windows.Forms.DialogResult.OK)
{
bool is_file = false;
string filename = "";
try
{
filename = Path.GetFileName(sfd.FileName);
if (filename != null && filename != "")
{
is_file = true;
}
}
catch (Exception)
{
is_file = false;
}
if (is_file)
{
rev_file_full_name = sfd.FileName;
core.send_response(friend.stu_num, e.id);
add_text_rich1("\r\n你同意了接收文件请求，即将开始接收", Color.Blue);
if (waiting_file_rev)
{
core.rev_abort(friend.stu_num);
}
file_pieces.Clear();
waiting_file_rev = true;
}
else
{
core.send_response(friend.stu_num, e.id + 1);
waiting_file_rev = false;
add_text_rich1("\r\n你没有同意接收文件", Color.Blue);
}
}
else
{
add_text_rich1("\r\n你没有同意接收文件", Color.Blue);
core.send_response(friend.stu_num, e.id + 1);
waiting_file_rev = false;
}
}
}