public dynamic Decode(IChannel channel, PacketBuffer buffer)
{
buffer.BeginBufferIndex();
if(buffer.AvailableBytes() > MaxBufferSize)
{
channel.Disconnect();
return null;
}
if (buffer.AvailableBytes() == 0)
return null;
Request request;
try
{
request = Request.Parse(buffer);
}
catch (Exception)
{
buffer.ResetBufferIndex();
return null;
}
buffer.EndBufferIndex();
return request;
}
public object Decode(IChannel channel, PacketBuffer buffer)
{
//버퍼 읽기 시작을 알림
buffer.BeginBufferIndex();
if (buffer.AvailableBytes() < 6) //버퍼길이가 5미만이면 리턴
return null;
buffer.ReadByte();
uint len = buffer.ReadUInt32();
if (len > buffer.AvailableBytes())
{
//버퍼의 길이가 실제 패킷 길이보다 모자름으로, 리셋후 리턴
buffer.ResetBufferIndex();
return null;
}
var data = new byte[len];
buffer.ReadBytes(data);
buffer.EndBufferIndex();
var stream = new MemoryStream(data);
var res = Unpacker.Create(stream).Unpack<MessagePackObject>();
stream.Dispose();
return res;
}
/// <summary>
/// BSON 패킷 구조를 따르는 PacketBuffer을 BSON Data로 변환 시키는 메서드
/// </summary>
/// <param name="buffer">BSON 패킷 구조를 따르는 Packet Buffer</param>
/// <returns>BSON Data</returns>
public dynamic Decode(IChannel channel, PacketBuffer buffer)
{
//버퍼 읽기 시작을 알림
buffer.BeginBufferIndex();
if (buffer.AvailableBytes() < 5) //버퍼길이가 5미만이면 리턴
return null;
uint len = buffer.ReadUInt32();
if (len > buffer.AvailableBytes())
{
//버퍼의 길이가 실제 패킷 길이보다 모자름으로, 리셋후 리턴
buffer.ResetBufferIndex();
return null;
}
var data = new byte[len];
buffer.ReadBytes(data);
buffer.EndBufferIndex();
var stream = new MemoryStream(data);
dynamic res = Serializer.Deserialize(new BsonReader(stream));
stream.Dispose();
return res;
}
private void LoadPostData(string contentType, PacketBuffer buffer, string name = null)
{
if (contentType == null)
{
string data = buffer.ReadString((int) buffer.AvailableBytes());
if(name != null)
_postData.Add(name, data);
}
else if (contentType == "application/x-www-form-urlencoded")
{
string stringData = buffer.ReadString((int) buffer.AvailableBytes());
foreach (string q in stringData.Split('&'))
{
int valueStartPoint = q.IndexOf("=", System.StringComparison.Ordinal);
if (valueStartPoint == -1 && q.Length > valueStartPoint + 1)
continue;
_postData.Add(q.Substring(0, valueStartPoint), q.Substring(valueStartPoint + 1));
}
}
else if (contentType.StartsWith("multipart/form-data;"))
{
byte[] p = System.Text.Encoding.UTF8.GetBytes(string.Format("\r\n--{0}", contentType.Substring(contentType.IndexOf("boundary=") + 9)));
long len = 0;
while ((len = buffer.FindBytes(p)) > -1)
{
var buf = new PacketBuffer();
buf.WriteBytes(buffer.ReadBytes((int)len));
buffer.ReadBytes(p.Length);
buf.BeginBufferIndex();
buf.ReadLine();
var hDictionary = new Dictionary<string, string>();
string h = "";
while((h = buf.ReadLine()) != "")
{
if (h == null)
break;
int valueStartIndex = h.IndexOf(": ", System.StringComparison.Ordinal);
if (valueStartIndex == -1)
continue;
string key = h.Substring(0, valueStartIndex).ToLower();
string value = h.Substring(valueStartIndex + 2, h.Length - valueStartIndex - 2);
hDictionary.Add(key, value);
}
if (hDictionary.Count != 0)
{
string pname =
hDictionary["content-disposition"].Substring(
hDictionary["content-disposition"].IndexOf("name") + 6);
pname = pname.Substring(0, pname.Length - 1);
string type = null;
try
{
type = hDictionary["content-type"];
}
catch (Exception)
{
}
LoadPostData(type, buf, pname);
}
buf.Dispose();
}
}
else if (name != null)
{
string tempName = Path.GetTempFileName();
var stream = new FileStream(tempName, FileMode.OpenOrCreate, FileAccess.Write);
byte[] data = new byte[1024];
int len;
while((len = buffer.Read(data, 0, 1024)) > 0)
stream.Write(data, 0, len);
stream.Close();
((Dictionary<string, string>)_postData["FILES"]).Add(name, tempName);
}
}
public bool SetPostData(PacketBuffer buffer)
{
if (Convert.ToInt64(GetHeader("Content-Length")) > buffer.AvailableBytes() + 1)
return false;
var buf = buffer.GetStream() as MemoryStream;
if(buf != null)
_lowPostData = new MemoryStream(buf.GetBuffer(), (int)buf.Position, (int)(buf.Length - buf.Position));
LoadPostData(GetHeader("Content-Type"), buffer);
return true;
}
public dynamic Decode(IChannel channel, PacketBuffer buffer)
{
buffer.BeginBufferIndex();
var stream = new MemoryStream();
while (true)
{
if (buffer.AvailableBytes() < 2)
return null;
byte frameH = buffer.ReadByte();
byte frameP = buffer.ReadByte();
int len = frameP & 0x7F;
if (len > 0x7D)
{
if (buffer.AvailableBytes() < 2)
return null;
for (var i = 0; i < 2; i++)
len = (len << 8) + buffer.ReadByte();
if ((frameP & 0x7F) == 0x7F)
{
if (buffer.AvailableBytes() < 2)
return null;
for (var i = 0; i < 2; i++)
len = (len << 8) + buffer.ReadByte();
}
}
if (buffer.AvailableBytes() < 4 + len)
return null;
byte[] key = (frameP & 0x80) == 0x80 ? buffer.ReadBytes(4) : null;
byte[] data = null;
if (key == null)
{
data = buffer.ReadBytes(len);
}
else
{
data = new byte[len];
for (int i = 0; i < len; i++)
data[i] = (byte) (buffer.ReadByte() ^ key[i%4]);
}
stream.Write(data, 0, len);
if ((frameH & 0xF) == 8)
{
buffer.EndBufferIndex();
return new ConnectionClose();
}
if ((frameH & 0xF) == 9)
{
buffer.EndBufferIndex();
return new Ping();
}
if((frameH & 0xF) == 10)
{
buffer.EndBufferIndex();
return new Pong();
}
if((frameH & 0x80) == 128)
break;
}
buffer.EndBufferIndex();
return stream.ToArray();
}