public void Resume(byte[] data, int size)
{
Start = 0;
ReadSize = size;
data.CopyTo(ReadBuffer, 0);
ReadStatus = G2ReadResult.PACKET_INCOMPLETE;
}
public static bool ReadPayload(G2Header packet)
{
ResetPacket(packet);
G2Header child = new G2Header(packet.Data);
G2ReadResult streamStatus = G2ReadResult.PACKET_GOOD;
while (streamStatus == G2ReadResult.PACKET_GOOD)
{
streamStatus = ReadNextChild(packet, child);
}
if (streamStatus == G2ReadResult.STREAM_END)
{
if (packet.NextBytesLeft > 0)
{
packet.PayloadPos = packet.NextBytePos;
packet.PayloadSize = packet.NextBytesLeft;
return(true);
}
}
else if (packet.NextBytesLeft > 0)
{
// Payload Read Error
//m_pG2Comm->m_pCore->DebugLog("G2 Network", "Payload Read Error: " + HexDump(packet.Packet, packet.PacketSize));
}
return(false);
}
public byte[] Break()
{
byte[] remaining = Utilities.ExtractBytes(ReadBuffer, Start, ReadSize);
ReadSize = 0;
ReadStatus = G2ReadResult.PACKET_INCOMPLETE;
return(remaining);
}
G2ReceivedPacket LastPacket; //crit delete
void ReceivePackets()
{
int Start = 0;
G2ReadResult streamStatus = G2ReadResult.PACKET_GOOD;
while (streamStatus == G2ReadResult.PACKET_GOOD)
{
G2ReceivedPacket packet = new G2ReceivedPacket();
packet.Root = new G2Header(FinalRecvBuffer);
streamStatus = G2Protocol.ReadNextPacket(packet.Root, ref Start, ref FinalRecvBuffSize);
if (streamStatus != G2ReadResult.PACKET_GOOD)
{
break;
}
packet.Tcp = this;
packet.Source = new DhtContact(this, RemoteIP);
// extract data from final recv buffer so it can be referenced without being overwritten by this thread
byte[] extracted = Utilities.ExtractBytes(packet.Root.Data, packet.Root.PacketPos, packet.Root.PacketSize);
packet.Root = new G2Header(extracted);
G2Protocol.ReadPacket(packet.Root);
LastPacket = packet;
PacketLogEntry logEntry = new PacketLogEntry(Core.TimeNow, TransportProtocol.Tcp, DirectionType.In, packet.Source, packet.Root.Data);
Network.LogPacket(logEntry);
Network.IncomingPacket(packet);
}
// re-align buffer
if (Start > 0 && FinalRecvBuffSize > 0)
{
Buffer.BlockCopy(FinalRecvBuffer, Start, FinalRecvBuffer, 0, FinalRecvBuffSize);
//Network.UpdateConsole(PacketBytesReady.ToString() + " bytes moved to front of receive buffer");
}
}
private bool ReadNext(G2Header root)
{
if (ReadSize > 0)
{
int prevStart = Start;
ReadStatus = G2Protocol.ReadNextPacket(root, ref Start, ref ReadSize);
ParentPos += (Start - prevStart);
if (ReadStatus == G2ReadResult.PACKET_GOOD)
{
return(true);
}
}
// hit the exact end of the buffer read in, signal to read the next buffer in
else
{
ReadStatus = G2ReadResult.PACKET_INCOMPLETE;
}
return(false);
}
public void OnReceive()
{
if (ReceiveBuffer == null)
{
ReceiveBuffer = new byte[BUFF_SIZE];
}
int recvd = Comm.Receive(ReceiveBuffer, RecvBuffSize, BUFF_SIZE - RecvBuffSize);
if (recvd <= 0)
{
return;
}
int start = 0;
RecvBuffSize += recvd;
// get next packet
G2ReadResult streamStatus = G2ReadResult.PACKET_GOOD;
while (streamStatus == G2ReadResult.PACKET_GOOD)
{
G2ReceivedPacket packet = new G2ReceivedPacket();
start = 0;
// if encryption off
if (RecvDecryptor == null)
{
packet.Root = new G2Header(ReceiveBuffer);
streamStatus = G2Protocol.ReadNextPacket(packet.Root, ref start, ref RecvBuffSize);
if (streamStatus != G2ReadResult.PACKET_GOOD)
{
break;
}
PacketLogEntry logEntry = new PacketLogEntry(Core.TimeNow, TransportProtocol.Rudp, DirectionType.In, Comm.PrimaryAddress.Address, Utilities.ExtractBytes(packet.Root.Data, packet.Root.PacketPos, packet.Root.PacketSize));
Core.Network.LogPacket(logEntry);
ReceivePacket(packet);
if (start > 0 && RecvBuffSize > 0)
{
Buffer.BlockCopy(ReceiveBuffer, start, ReceiveBuffer, 0, RecvBuffSize);
}
}
// else if encryption on
else
{
// if data needs to be decrypted from receive buffer
if (RecvBuffSize >= RecvBlockSize)
{
int transLength = RecvBuffSize - (RecvBuffSize % RecvBlockSize);
int spaceAvail = BUFF_SIZE - DecryptBuffSize;
if (spaceAvail < transLength)
{
transLength = spaceAvail - (spaceAvail % RecvBlockSize);
}
if (transLength >= RecvBlockSize)
{
if (DecryptBuffer == null)
{
DecryptBuffer = new byte[BUFF_SIZE];
}
int transformed = RecvDecryptor.TransformBlock(ReceiveBuffer, 0, transLength, DecryptBuffer, DecryptBuffSize);
Debug.Assert(transformed == transLength);
DecryptBuffSize += transformed;
RecvBuffSize -= transLength;
Buffer.BlockCopy(ReceiveBuffer, transLength, ReceiveBuffer, 0, RecvBuffSize);
}
}
// read packets from decrypt buffer
packet.Root = new G2Header(DecryptBuffer);
//crit - delete
//int lastStart = start;
//int lastBuffSize = DecryptBuffSize;
//byte[] lastBuffer = Utilities.ExtractBytes(DecryptBuffer, 0, DecryptBuffSize);
streamStatus = G2Protocol.ReadNextPacket(packet.Root, ref start, ref DecryptBuffSize);
if (streamStatus == G2ReadResult.PACKET_ERROR)
{
//crit - debug this
Send_Close("Session Packet Error");
break;
}
if (streamStatus != G2ReadResult.PACKET_GOOD)
{
break;
}
PacketLogEntry logEntry = new PacketLogEntry(Core.TimeNow, TransportProtocol.Rudp, DirectionType.In, Comm.PrimaryAddress.Address, Utilities.ExtractBytes(packet.Root.Data, packet.Root.PacketPos, packet.Root.PacketSize));
Core.Network.LogPacket(logEntry);
ReceivePacket(packet);
if (start > 0 && DecryptBuffSize > 0)
{
Buffer.BlockCopy(DecryptBuffer, start, DecryptBuffer, 0, DecryptBuffSize);
}
}
}
}
private static string LoadProfile(ProfileService service, OpProfile profile, string tempPath, Dictionary <string, string> textFields, Dictionary <string, string> fileFields)
{
string template = null;
textFields.Clear();
textFields["local_help"] = (profile.UserID == service.Core.UserID) ? "<font size=2>Right-click or click <a href='http://edit'>here</a> to Edit</font>" : "";
if (fileFields != null)
{
fileFields.Clear();
}
if (!profile.Loaded)
{
service.LoadProfile(profile.UserID);
}
try
{
using (TaggedStream stream = new TaggedStream(service.GetFilePath(profile), service.Core.GuiProtocol))
using (IVCryptoStream crypto = IVCryptoStream.Load(stream, profile.File.Header.FileKey))
{
int buffSize = 4096;
byte[] buffer = new byte[4096];
long bytesLeft = profile.EmbeddedStart;
while (bytesLeft > 0)
{
int readSize = (bytesLeft > (long)buffSize) ? buffSize : (int)bytesLeft;
int read = crypto.Read(buffer, 0, readSize);
bytesLeft -= (long)read;
}
// load file
foreach (ProfileAttachment attached in profile.Attached)
{
if (attached.Name.StartsWith("template"))
{
byte[] html = new byte[attached.Size];
crypto.Read(html, 0, (int)attached.Size);
UTF8Encoding utf = new UTF8Encoding();
template = utf.GetString(html);
}
else if (attached.Name.StartsWith("fields"))
{
byte[] data = new byte[attached.Size];
crypto.Read(data, 0, (int)attached.Size);
int start = 0, length = data.Length;
G2ReadResult streamStatus = G2ReadResult.PACKET_GOOD;
while (streamStatus == G2ReadResult.PACKET_GOOD)
{
G2ReceivedPacket packet = new G2ReceivedPacket();
packet.Root = new G2Header(data);
streamStatus = G2Protocol.ReadNextPacket(packet.Root, ref start, ref length);
if (streamStatus != G2ReadResult.PACKET_GOOD)
{
break;
}
if (packet.Root.Name == ProfilePacket.Field)
{
ProfileField field = ProfileField.Decode(packet.Root);
if (field.Value == null)
{
continue;
}
if (field.FieldType == ProfileFieldType.Text)
{
textFields[field.Name] = UTF8Encoding.UTF8.GetString(field.Value);
}
else if (field.FieldType == ProfileFieldType.File && fileFields != null)
{
fileFields[field.Name] = UTF8Encoding.UTF8.GetString(field.Value);
}
}
}
}
else if (attached.Name.StartsWith("file=") && fileFields != null)
{
string name = attached.Name.Substring(5);
try
{
string fileKey = null;
foreach (string key in fileFields.Keys)
{
if (name == fileFields[key])
{
fileKey = key;
break;
}
}
fileFields[fileKey] = tempPath + Path.DirectorySeparatorChar + name;
using (FileStream extract = new FileStream(fileFields[fileKey], FileMode.CreateNew, FileAccess.Write))
{
long remaining = attached.Size;
byte[] buff = new byte[2096];
while (remaining > 0)
{
int read = (remaining > 2096) ? 2096 : (int)remaining;
remaining -= read;
crypto.Read(buff, 0, read);
extract.Write(buff, 0, read);
}
}
}
catch
{ }
}
}
}
}
catch (Exception)
{
}
return(template);
}
private bool ReadNext(G2Header root)
{
if (ReadSize > 0)
{
int prevStart = Start;
ReadStatus = G2Protocol.ReadNextPacket(root, ref Start, ref ReadSize);
ParentPos += (Start - prevStart);
if (ReadStatus == G2ReadResult.PACKET_GOOD)
return true;
}
// hit the exact end of the buffer read in, signal to read the next buffer in
else
ReadStatus = G2ReadResult.PACKET_INCOMPLETE;
return false;
}
public void Resume(byte[] data, int size)
{
Start = 0;
ReadSize = size;
data.CopyTo(ReadBuffer, 0);
ReadStatus = G2ReadResult.PACKET_INCOMPLETE;
}
public byte[] Break()
{
byte[] remaining = Utilities.ExtractBytes(ReadBuffer, Start, ReadSize);
ReadSize = 0;
ReadStatus = G2ReadResult.PACKET_INCOMPLETE;
return remaining;
}