Files
libremetaverse/libsecondlife-cs/Packet.cs
John Hurliman b4accdddfc * Added JSON library to parse LLSD fields in the login reply
* Added fields in Avatar to hold the parsed data from login
* CoarseLocationUpdate packets handled internally
* Added Network.LoginValues hashtable, removed second parameter from .Login()
* Updated examples to reflect LoginValues / Login() change

git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@39 52acb1d6-8a22-11de-b505-999d5b087335
2006-07-01 03:42:53 +00:00

1250 lines
35 KiB
C#

/*
* Copyright (c) 2006, Second Life Reverse Engineering Team
* All rights reserved.
*
* - Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* - Neither the name of the Second Life Reverse Engineering Team nor the names
* of its contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Net;
using System.Collections;
namespace libsecondlife
{
public struct Field
{
public object Data;
public MapField Layout;
}
public struct Block
{
public ArrayList Fields;
public MapBlock Layout;
}
public class Packet
{
public byte[] Data;
public MapPacket Layout;
public ushort Sequence
{
get
{
short sequence = BitConverter.ToInt16(Data, 2);
// TODO: To support big endian platforms, we need to replace NetworkToHostOrder with
// a big endian to little endian function
return (ushort)IPAddress.NetworkToHostOrder(sequence);
}
set
{
byte[] sequence = BitConverter.GetBytes(value);
if (BitConverter.IsLittleEndian)
{
Data[2] = sequence[1];
Data[3] = sequence[0];
}
else
{
Data[2] = sequence[0];
Data[3] = sequence[1];
}
}
}
private ProtocolManager Protocol;
public Packet(string command, ProtocolManager protocol, int length)
{
Protocol = protocol;
Data = new byte[length];
Layout = protocol.Command(command);
if (Layout == null)
{
Helpers.Log("Attempting to build a packet with invalid command \"" + command + "\"",
Helpers.LogLevel.Error);
}
switch (Layout.Frequency)
{
case PacketFrequency.Low:
// Set the low frequency identifier bits
byte[] lowHeader = {0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF};
Array.Copy(lowHeader, 0, Data, 0, 6);
// Store the packet ID in big endian format
short id = IPAddress.HostToNetworkOrder((short)Layout.ID);
Array.Copy(BitConverter.GetBytes(id), 0, Data, 6, 2);
break;
case PacketFrequency.Medium:
// Set the medium frequency identifier bit
byte[] mediumHeader = {0x00, 0x00, 0x00, 0x00, 0xFF};
Array.Copy(mediumHeader, 0, Data, 0, 5);
Data[5] = (byte)Layout.ID;
break;
case PacketFrequency.High:
byte[] highHeader = {0x00, 0x00, 0x00, 0x00};
Array.Copy(highHeader, 0, Data, 0, 4);
Data[4] = (byte)Layout.ID;
break;
}
}
public Packet(byte[] data, int length, ProtocolManager protocol)
{
Protocol = protocol;
ushort command;
Data = new byte[length];
if (length < 5)
{
Helpers.Log("Received a packet with less than 5 bytes", Helpers.LogLevel.Warning);
// Create an empty MapPacket
Layout = new MapPacket();
Layout.Blocks = new ArrayList();
return;
}
if (data[4] == 0xFF)
{
if ((byte)data[5] == 0xFF)
{
// Low frequency
command = BitConverter.ToUInt16(data, 6);
command = (ushort)IPAddress.NetworkToHostOrder((short)command);
Layout = protocol.Command(command, PacketFrequency.Low);
}
else
{
// Medium frequency
command = (ushort)data[5];
Layout = protocol.Command(command, PacketFrequency.Medium);
}
}
else
{
// High frequency
command = (ushort)data[4];
Layout = protocol.Command(command, PacketFrequency.High);
}
if (Layout == null)
{
Helpers.Log("Received a packet with an unknown command ID", Helpers.LogLevel.Warning);
// Create an empty MapPacket
Layout = new MapPacket();
Layout.Blocks = new ArrayList();
}
// Copy the network byte array to this packet's byte array
Array.Copy(data, 0, Data, 0, length);
}
public ArrayList Blocks()
{
Field field;
Block block;
byte blockCount;
int fieldSize;
// Get the starting position of the SL payload (different than the UDP payload)
int pos = HeaderLength();
// Initialize the block list we are returning
ArrayList blocks = new ArrayList();
foreach (MapBlock blockMap in Layout.Blocks)
{
if (blockMap.Count == -1)
{
// Variable count block
if (pos < Data.Length)
{
blockCount = Data[pos];
pos++;
}
else
{
Helpers.Log("getBlocks(): goto 1 reached", Helpers.LogLevel.Warning);
goto Done;
}
}
else
{
blockCount = (byte)blockMap.Count;
}
for (int i = 0; i < blockCount; ++i)
{
// Create a new block to push back on the list
block = new Block();
block.Layout = blockMap;
block.Fields = new ArrayList();
foreach (MapField fieldMap in blockMap.Fields)
{
if (fieldMap.Type == FieldType.Variable)
{
if (fieldMap.Count == 1)
{
// Field length described with one byte
if (pos < Data.Length)
{
fieldSize = (ushort)Data[pos];
pos++;
}
else
{
Helpers.Log("getBlocks(): goto 2 reached", Helpers.LogLevel.Warning);
goto BlockDone;
}
}
else // (fieldMap.Count == 2)
{
// Field length described with two bytes
if (pos + 1 < Data.Length)
{
fieldSize = BitConverter.ToUInt16(Data, pos);
pos += 2;
}
else
{
Helpers.Log("getBlocks(): goto 3 reached", Helpers.LogLevel.Warning);
goto BlockDone;
}
}
if (fieldSize != 0)
{
if (pos + fieldSize <= Data.Length)
{
// Create a new field to add to the fields for this block
field = new Field();
field.Data = GetField(Data, pos, fieldMap.Type, fieldSize);
field.Layout = fieldMap;
block.Fields.Add(field);
pos += fieldSize;
}
else
{
Helpers.Log("getBlocks(): goto 4 reached", Helpers.LogLevel.Warning);
goto BlockDone;
}
}
}
else if (fieldMap.Type == FieldType.Fixed)
{
fieldSize = fieldMap.Count;
if (pos + fieldSize <= Data.Length)
{
// Create a new field to add to the fields for this block
field = new Field();
field.Data = GetField(Data, pos, fieldMap.Type, fieldSize);
field.Layout = fieldMap;
block.Fields.Add(field);
pos += fieldSize;
}
else
{
Helpers.Log("getBlocks(): goto 4 reached", Helpers.LogLevel.Warning);
goto BlockDone;
}
}
else
{
for (int j = 0; j < fieldMap.Count; ++j)
{
fieldSize = (int)Protocol.TypeSizes[fieldMap.Type];
if (pos + fieldSize <= Data.Length)
{
// Create a new field to add to the fields for this block
field = new Field();
field.Data = GetField(Data, pos, fieldMap.Type, fieldSize);
field.Layout = fieldMap;
block.Fields.Add(field);
pos += fieldSize;
}
else
{
Helpers.Log("getBlocks(): goto 5 reached", Helpers.LogLevel.Warning);
goto BlockDone;
}
}
}
}
BlockDone:
blocks.Add(block);
}
}
Done:
return blocks;
}
public override string ToString()
{
string output = "";
ArrayList blocks = Blocks();
output += "---- " + Layout.Name + " ----\n";
foreach (Block block in blocks)
{
output += block.Layout.Name + "\n";
foreach (Field field in block.Fields)
{
output += " " + field.Layout.Name + ": " + field.Data.ToString() + "\n";
}
}
return output;
}
private object GetField(byte[] byteArray, int pos, FieldType type, int fieldSize)
{
switch (type)
{
case FieldType.U8:
return byteArray[pos];
case FieldType.U16:
return BitConverter.ToUInt16(byteArray, pos);
case FieldType.U32:
return BitConverter.ToUInt32(byteArray, pos);
case FieldType.U64:
return new U64(byteArray, pos);
case FieldType.S8:
return (sbyte)byteArray[pos];
case FieldType.S16:
return BitConverter.ToInt16(byteArray, pos);
case FieldType.S32:
return BitConverter.ToInt32(byteArray, pos);
case FieldType.S64:
return BitConverter.ToInt64(byteArray, pos);
case FieldType.F32:
return BitConverter.ToSingle(byteArray, pos);
case FieldType.F64:
return BitConverter.ToDouble(byteArray, pos);
case FieldType.LLUUID:
return new LLUUID(byteArray, pos);
case FieldType.BOOL:
return (byteArray[pos] != 0) ? (bool)true : (bool)false;
case FieldType.LLVector3:
return new LLVector3(byteArray, pos);
case FieldType.LLVector3d:
return new LLVector3d(byteArray, pos);
case FieldType.LLVector4:
return new LLVector4(byteArray, pos);
case FieldType.LLQuaternion:
return new LLQuaternion(byteArray, pos);
case FieldType.IPADDR:
uint address = BitConverter.ToUInt32(byteArray, pos);
return new IPAddress(address);
case FieldType.IPPORT:
ushort port = BitConverter.ToUInt16(byteArray, pos);
return (ushort)IPAddress.NetworkToHostOrder((short)port);
case FieldType.Variable:
case FieldType.Fixed:
byte[] bytes = new byte[fieldSize];
for (int i = 0; i < fieldSize; ++i)
{
bytes[i] = byteArray[pos + i];
}
return bytes;
}
return null;
}
public int HeaderLength()
{
switch (Layout.Frequency)
{
case PacketFrequency.High:
return 5;
case PacketFrequency.Medium:
return 6;
case PacketFrequency.Low:
return 8;
}
return 0;
}
}
public class PacketBuilder
{
public static Packet BuildPacket(string name, ProtocolManager protocol, Hashtable blocks)
{
Hashtable fields;
ArrayList payload = new ArrayList();
byte[] byteArray = new byte[1024];
int length = 0;
int blockCount = 0;
int fieldLength = 0;
IDictionaryEnumerator blocksEnum;
MapPacket packetMap = protocol.Command(name);
// Build the header
#region Header
switch (packetMap.Frequency)
{
case PacketFrequency.High:
byteArray[4] = (byte)packetMap.ID;
length = 5;
break;
case PacketFrequency.Medium:
byteArray[4] = 0xFF;
byteArray[5] = (byte)packetMap.ID;
length = 6;
break;
case PacketFrequency.Low:
byteArray[4] = 0xFF;
byteArray[5] = 0xFF;
//short commandID = ;
Array.Copy(BitConverter.GetBytes(IPAddress.HostToNetworkOrder((short)packetMap.ID)), 0,
byteArray, 6, 2);
length = 8;
break;
}
#endregion Header
foreach (MapBlock blockMap in packetMap.Blocks)
{
// If this is a variable count block, count the number of appearances of this block in the
// passed in Hashtable and prepend a counter byte
#region VariableSize
if (blockMap.Count == -1)
{
blockCount = 0;
// Count the number of this type of block in the blocks Hashtable
blocksEnum = blocks.GetEnumerator();
while (blocksEnum.MoveNext())
{
if ((string)blocksEnum.Value == blockMap.Name)
{
blockCount++;
}
}
if (blockCount > 255)
{
Helpers.Log("Trying to put more than 255 blocks in a variable block position, " +
"this will not end well", Helpers.LogLevel.Error);
}
// Prepend the blocks with a count
byteArray[length] = (byte)blockCount;
length++;
}
#endregion VariablSize
// Reset blockCount
blockCount = 0;
// Check for blocks of this type in the Hashtable
#region BuildBlock
blocksEnum = blocks.GetEnumerator();
while (blocksEnum.MoveNext())
{
if ((string)blocksEnum.Value == blockMap.Name)
{
// Found a match of this block
if (blockMap.Count == -1 || blockCount < blockMap.Count)
{
blockCount++;
#region TryBlockTypecast
try
{
fields = (Hashtable)blocksEnum.Key;
}
catch (Exception)
{
Helpers.Log("Something other than a field Hashtable was passed to BuildPacket " +
"inside of the block Hashtable", Helpers.LogLevel.Warning);
continue;
}
#endregion TryBlockTypecast
foreach (MapField fieldMap in blockMap.Fields)
{
if (fields.ContainsKey(fieldMap.Name))
{
object field = fields[fieldMap.Name];
#region AddField
try
{
switch (fieldMap.Type)
{
case FieldType.U8:
byteArray[length] = (byte)field;
length++;
break;
case FieldType.U16:
Array.Copy(BitConverter.GetBytes((ushort)field), 0, byteArray, length, 2);
length += 2;
break;
case FieldType.U32:
Array.Copy(BitConverter.GetBytes((uint)field), 0, byteArray, length, 4);
length += 4;
break;
case FieldType.U64:
Array.Copy(((U64)field).GetBytes(), 0, byteArray, length, 8);
length += 8;
break;
case FieldType.S8:
byteArray[length] = (byte)field;
length++;
break;
case FieldType.S16:
Array.Copy(BitConverter.GetBytes((short)field), 0, byteArray, length, 2);
length += 2;
break;
case FieldType.S32:
Array.Copy(BitConverter.GetBytes((int)field), 0, byteArray, length, 4);
length += 4;
break;
case FieldType.S64:
Array.Copy(BitConverter.GetBytes((long)field), 0, byteArray, length, 8);
length += 8;
break;
case FieldType.F32:
Array.Copy(BitConverter.GetBytes((float)field), 0, byteArray, length, 4);
length += 4;
break;
case FieldType.F64:
Array.Copy(BitConverter.GetBytes((double)field), 0, byteArray, length, 8);
length += 8;
break;
case FieldType.LLUUID:
Array.Copy(((LLUUID)field).Data, 0, byteArray, length, 16);
length += 16;
break;
case FieldType.BOOL:
byteArray[length] = (byte)field;
length++;
break;
case FieldType.LLVector3:
Array.Copy(((LLVector3)field).GetBytes(), 0, byteArray, length, 12);
length += 12;
break;
case FieldType.LLVector3d:
Array.Copy(((LLVector3d)field).GetBytes(), 0, byteArray, length, 24);
length += 24;
break;
case FieldType.LLVector4:
Array.Copy(((LLVector4)field).GetBytes(), 0, byteArray, length, 16);
length += 16;
break;
case FieldType.LLQuaternion:
Array.Copy(((LLQuaternion)field).GetBytes(), 0, byteArray, length, 16);
length += 16;
break;
case FieldType.IPADDR:
Array.Copy(BitConverter.GetBytes((ushort)field), 0, byteArray, length, 2);
length += 2;
break;
case FieldType.IPPORT:
Array.Copy(BitConverter.GetBytes((ushort)field), 0, byteArray, length, 2);
length += 2;
break;
case FieldType.Variable:
if (field.GetType().IsArray)
{
// Assume this is a byte array
fieldLength = ((byte[])field).Length;
if (fieldLength > 255)
{
Helpers.Log("Truncating variable (byte) field to 255 " +
"characters", Helpers.LogLevel.Warning);
fieldLength = 255;
}
}
else
{
// Assume this is a string, add 1 for the null terminator
fieldLength = ((string)field).Length + 1;
if (fieldLength > 255)
{
Helpers.Log("Truncating variable (string) field to 255 " +
"characters", Helpers.LogLevel.Warning);
fieldLength = 255;
}
}
if (fieldMap.Count == 2)
{
Array.Copy(BitConverter.GetBytes(fieldLength), 0, byteArray,
length, 2);
length += 2;
}
else
{
if (fieldMap.Count != 1)
{
Helpers.Log("Variable field " + fieldMap.Name + " has a count of " +
+ fieldMap.Count + ", ignoring and assuming 1",
Helpers.LogLevel.Warning);
}
byteArray[length] = (byte)(fieldLength);
length++;
}
if (field.GetType().IsArray)
{
// Assume this is a byte array
Array.Copy((byte[])field, 0, byteArray, length, fieldLength);
}
else
{
// Assume this is a string, add 1 for the null terminator
byte[] stringBytes = System.Text.Encoding.UTF8.GetBytes((string)field);
Array.Copy(stringBytes, 0, byteArray, length, stringBytes.Length);
fieldLength = stringBytes.Length + 1;
}
length += fieldLength;
break;
case FieldType.Fixed:
Array.Copy((byte[])field, 0, byteArray, length, fieldMap.Count);
length += fieldMap.Count;
break;
default:
Helpers.Log("Unhandled field type " + fieldMap.Type + " during " +
"packet construction", Helpers.LogLevel.Error);
break;
}
}
catch (Exception)
{
Helpers.Log("Data type " + field.GetType().ToString() + " for field " +
fieldMap.Name + " doesn't match expected type " + fieldMap.Type.ToString(),
Helpers.LogLevel.Error);
// This will fail for fixed or variable type packets, but it's a
// last ditch effort
length += (int)protocol.TypeSizes[fieldMap.Type];
}
#endregion AddField
}
else
{
// This field wasn't passed in, create an empty version
#region EmptyField
if (fieldMap.Type == FieldType.Variable)
{
// Just set the counter to zero and move on
if (fieldMap.Count == 2)
{
length += 2;
}
else
{
if (fieldMap.Count != 1)
{
Helpers.Log("Variable field " + fieldMap.Name + " has a count of " +
+ fieldMap.Count + ", ignoring and assuming 1",
Helpers.LogLevel.Warning);
}
length++;
}
}
else if (fieldMap.Type == FieldType.Fixed)
{
length += fieldMap.Count;
}
else
{
length += (int)protocol.TypeSizes[fieldMap.Type];
}
#endregion EmptyField
}
}
}
else
{
Helpers.Log("Trying to build a " + packetMap.Name + " packet with too many " +
blockMap.Name + " blocks", Helpers.LogLevel.Warning);
}
}
}
#endregion BuildBlock
// If this is a fixed count block and it doesn't appear in the Hashtable passed in, create
// empty filler blocks
#region EmptyBlock
if (blockCount == 0 && blockMap.Count != -1)
{
for (int i = 0; i < blockMap.Count; ++i)
{
foreach (MapField field in blockMap.Fields)
{
if (field.Type == FieldType.Variable)
{
length++;
}
else
{
length += (int)protocol.TypeSizes[field.Type];
}
}
}
}
#endregion EmptyBlock
}
return new Packet(byteArray, length, protocol);
}
public static Packet UseCircuitCode(ProtocolManager protocol, LLUUID agentID, LLUUID sessionID, uint code)
{
Packet packet = new Packet("UseCircuitCode", protocol, 44);
// Append the payload
Array.Copy(agentID.Data, 0, packet.Data, 8, 16);
Array.Copy(sessionID.Data, 0, packet.Data, 24, 16);
Array.Copy(BitConverter.GetBytes(code), 0, packet.Data, 40, 4);
// Set the packet flags
packet.Data[0] = Helpers.MSG_RELIABLE;
return packet;
}
public static Packet CompleteAgentMovement(ProtocolManager protocol, LLUUID agentID, LLUUID sessionID, uint code)
{
Packet packet = new Packet("CompleteAgentMovement", protocol, 44);
// Append the payload
Array.Copy(agentID.Data, 0, packet.Data, 8, 16);
Array.Copy(sessionID.Data, 0, packet.Data, 24, 16);
Array.Copy(BitConverter.GetBytes(code), 0, packet.Data, 40, 4);
// Set the packet flags
packet.Data[0] = Helpers.MSG_RELIABLE;
return packet;
}
public static Packet PacketAck(ProtocolManager protocol, ArrayList acks)
{
int pos = 9;
// Size of this packet is header (8) + block count (1) + 4 * number of blocks
Packet packet = new Packet("PacketAck", protocol, 9 + acks.Count * 4);
// Set the payload size
packet.Data[8] = (byte)acks.Count;
// Append the payload
foreach (uint ack in acks)
{
Array.Copy(BitConverter.GetBytes(ack), 0, packet.Data, pos, 4);
pos += 4;
}
return packet;
}
public static Packet CompletePingCheck(ProtocolManager protocol, byte pingID)
{
Packet packet = new Packet("CompletePingCheck", protocol, 6);
// Append the payload
packet.Data[5] = pingID;
// Set the packet flags
packet.Data[0] = Helpers.MSG_ZEROCODED;
return packet;
}
public static Packet LogoutRequest(ProtocolManager protocol, LLUUID agentID, LLUUID sessionID)
{
Packet packet = new Packet("LogoutRequest", protocol, 40);
Array.Copy(agentID.Data, 0, packet.Data, 8, 16);
Array.Copy(sessionID.Data, 0, packet.Data, 24, 16);
packet.Data[0] = Helpers.MSG_RELIABLE + Helpers.MSG_ZEROCODED;
return packet;
}
public static Packet TeleportLocationRequest(ProtocolManager protocol, U64 regionHandle, LLVector3 lookAt,
LLVector3 position, LLUUID agentID, LLUUID sessionID)
{
Packet packet = new Packet("LogoutRequest", protocol, 72);
Array.Copy(regionHandle.GetBytes(), 0, packet.Data, 8, 8);
Array.Copy(lookAt.GetBytes(), 0, packet.Data, 16, 12);
Array.Copy(position.GetBytes(), 0, packet.Data, 28, 12);
Array.Copy(agentID.Data, 0, packet.Data, 40, 16);
Array.Copy(sessionID.Data, 0, packet.Data, 56, 16);
packet.Data[0] = Helpers.MSG_RELIABLE;
return packet;
}
public static Packet DirLandQuery(ProtocolManager protocol, bool reservedNewbie, bool forSale,
LLUUID queryID, bool auction, uint queryFlags, LLUUID agentID, LLUUID sessionID)
{
Packet packet = new Packet("DirLandQuery", protocol, 63);
packet.Data[8] = BitConverter.GetBytes(reservedNewbie)[0];
packet.Data[9] = BitConverter.GetBytes(forSale)[0];
Array.Copy(queryID.Data, 0, packet.Data, 10, 16);
packet.Data[26] = BitConverter.GetBytes(auction)[0];
Array.Copy(BitConverter.GetBytes(queryFlags), 0, packet.Data, 27, 4);
Array.Copy(agentID.Data, 0, packet.Data, 31, 16);
Array.Copy(sessionID.Data, 0, packet.Data, 47, 16);
// Set the packet flags
packet.Data[0] = Helpers.MSG_RELIABLE;
return packet;
}
public static Packet DirFindQuery(ProtocolManager protocol, string queryText, LLUUID queryID,
LLUUID agentID, LLUUID sessionID)
{
int pos = 8;
Packet packet = new Packet("DirFindQuery", protocol, 66 + queryText.Length);
// QueryID
Array.Copy(queryID.Data, 0, packet.Data, pos, 16);
pos += 16;
// QueryFlags
packet.Data[pos] = 1;
pos += 8;
// Set the QueryText field and it's length byte
packet.Data[pos] = (byte)(queryText.Length + 1);
pos++;
System.Text.Encoding.UTF8.GetBytes(queryText, 0, queryText.Length, packet.Data, pos);
pos += queryText.Length + 1;
// Set the AgentID and SessionID
Array.Copy(agentID.Data, 0, packet.Data, pos, 16);
pos += 16;
Array.Copy(sessionID.Data, 0, packet.Data, pos, 16);
// Set the packet flags
packet.Data[0] = Helpers.MSG_ZEROCODED + Helpers.MSG_RELIABLE;
return packet;
}
public static Packet DirPeopleQuerySimple(ProtocolManager protocol, string name, bool online,
LLUUID agentID, LLUUID sessionID)
{
int pos = 12;
Packet packet = new Packet("DirPeopleQuery", protocol, 71 + name.Length);
// Set the name field and it's length byte
packet.Data[pos] = (byte)(name.Length + 1);
pos++;
System.Text.Encoding.UTF8.GetBytes(name, 0, name.Length, packet.Data, pos);
pos += name.Length + 1;
// Set the QueryID to 1
pos += 15;
packet.Data[pos] = 1;
pos ++;
// Set the online field
packet.Data[pos] = BitConverter.GetBytes(online)[0];
pos++;
// Skip some fields
pos += 8;
// Set the AgentID and SessionID
Array.Copy(agentID.Data, 0, packet.Data, pos, 16);
pos += 16;
Array.Copy(sessionID.Data, 0, packet.Data, pos, 16);
// Set the packet flags
packet.Data[0] = Helpers.MSG_ZEROCODED + Helpers.MSG_RELIABLE;
return packet;
}
public static Packet ParcelInfoRequest(ProtocolManager protocol, LLUUID parcelID, LLUUID agentID,
LLUUID sessionID)
{
Packet packet = new Packet("ParcelInfoRequest", protocol, 56);
Array.Copy(parcelID.Data, 0, packet.Data, 8, 16);
Array.Copy(agentID.Data, 0, packet.Data, 24, 16);
Array.Copy(sessionID.Data, 0, packet.Data, 40, 16);
packet.Data[0] = Helpers.MSG_RELIABLE + Helpers.MSG_ZEROCODED;
return packet;
}
/*public static Packet TeleportLocationRequest(ProtocolManager protocol, U64 regionHandle, LLVector3 lookAt,
LLVector3 position, LLUUID agentID, LLUUID sessionID)
{
Packet packet = new Packet("TeleportLocationRequest", protocol, 72);
Array.Copy(regionHandle.GetBytes(), 0, packet.Data, 8, 8);
Array.Copy(lookAt.GetBytes(), 0, packet.Data, 16, 12);
Array.Copy(position.GetBytes(), 0, packet.Data, 28, 12);
Array.Copy(agentID.Data, 0, packet.Data, 40, 16);
Array.Copy(sessionID.Data, 0, packet.Data, 56, 16);
// Set the packet flags
packet.Data[0] = Helpers.MSG_RELIABLE + Helpers.MSG_ZEROCODED;
return packet;
}*/
public static Packet FetchInventoryDescendents(ProtocolManager protocol, LLUUID ownerID, LLUUID folderID,
LLUUID agentID)
{
int packetLength = 8; // header
packetLength += 16; // OwnerID (UUID)
packetLength += 16; // FolderID (UUID)
packetLength += 4; // Sort Order (signed integer? - S32)
packetLength += 1; // FetchFolders (byte? - BOOL)
packetLength += 1; // FetchItmes (byte? - BOOL)
packetLength += 16; // AgentID (UUID)
Packet packet = new Packet("FetchInventoryDescendents", protocol, packetLength);
int pos = 8; // Leave room for header
// OwnerID
Array.Copy(ownerID.Data, 0, packet.Data, pos, 16);
pos += 16;
// FolderID
Array.Copy(folderID.Data, 0, packet.Data, pos, 16);
pos += 16;
// Sort Order (Any ideas on what the valid values are here?)
Array.Copy(BitConverter.GetBytes((int)1), 0, packet.Data, pos, 4);
pos += 4;
// FetchFolders
packet.Data[pos] = 1;
pos += 1;
// FetchItemss
packet.Data[pos] = 1;
pos += 1;
// AgentID
Array.Copy(agentID.Data, 0, packet.Data, pos, 16);
pos += 16;
// Set the packet flags
// packet.Data[0] = Helpers.MSG_ZEROCODED + Helpers.MSG_RELIABLE;
packet.Data[0] = Helpers.MSG_RELIABLE;
return packet;
}
public static Packet RequestInventoryAsset(ProtocolManager protocol, LLUUID agentID, LLUUID queryUD,
LLUUID ownerID, LLUUID itemID)
{
int packetLength = 8; // header
packetLength += 16; // AgentID (UUID)
packetLength += 16; // QueryID (UUID)
packetLength += 16; // OwnerID (UUID)
packetLength += 16; // ItemID (UUID)
Packet packet = new Packet("RequestInventoryAsset", protocol, packetLength);
int pos = 8; // Leave room for header
// AgentID
Array.Copy(agentID.Data, 0, packet.Data, pos, 16);
pos += 16;
// QueryID
Array.Copy(queryUD.Data, 0, packet.Data, pos, 16);
pos += 16;
// OwnerID
Array.Copy(ownerID.Data, 0, packet.Data, pos, 16);
pos += 16;
// ItemID
Array.Copy(itemID.Data, 0, packet.Data, pos, 16);
pos += 16;
// Set the packet flags
packet.Data[0] = Helpers.MSG_ZEROCODED + Helpers.MSG_RELIABLE;
return packet;
}
public static Packet InstantMessage(ProtocolManager protocol, LLUUID targetAgentID, LLUUID myAgentID,
uint parentEstateID, LLUUID regionID, LLVector3 position, byte offline, byte dialog, LLUUID id,
uint timestamp, string myAgentName, string message, string binaryBucket)
{
Hashtable blocks = new Hashtable();
Hashtable fields = new Hashtable();
fields["FromAgentID"] = myAgentID;
fields["ToAgentID"] = targetAgentID;
fields["ParentEstateID"] = parentEstateID;
fields["RegionID"] = regionID;
fields["Position"] = position;
fields["Offline"] = offline;
fields["Dialog"] = dialog;
fields["ID"] = id;
fields["Timestamp"] = timestamp;
fields["FromAgentName"] = myAgentName;
fields["Message"] = message;
fields["BinaryBucket"] = binaryBucket;
blocks[fields] = "MessageBlock";
Packet packet = PacketBuilder.BuildPacket("ImprovedInstantMessage", protocol, blocks);
return packet;
}
public static Packet Chat(ProtocolManager protocol, LLUUID myAgentID, LLUUID mySessionID, string message,
byte type, int channel, byte command, LLUUID commandID, float radius, LLVector3 position)
{
Hashtable blocks = new Hashtable();
Hashtable agentData = new Hashtable();
Hashtable chatData = new Hashtable();
Hashtable conversationData = new Hashtable();
// Agent Data Block
agentData["AgentID"] = myAgentID;
agentData["SessionID"] = mySessionID;
blocks[agentData] = "AgentData";
// Chat Data Block
chatData["Message"] = message;
chatData["Type"] = type;
chatData["Channel"] = channel;
blocks[chatData] = "ChatData";
// Conversation Data Block
conversationData["Command"] = command;
conversationData["CommandID"] = commandID;
conversationData["Radius"] = radius;
conversationData["Position"] = position;
blocks[conversationData] = "ConversationData";
Packet packet = PacketBuilder.BuildPacket("ChatFromViewer",protocol,blocks);
return packet;
}
public static Packet ObjectAddSimple(ProtocolManager protocol, PrimObject objectData, LLUUID senderID,
LLVector3 position, LLVector3 rayStart)
{
LLUUID woodTexture = new LLUUID("8955674724cb43ed920b47caed15465f");
LLUUID rayTargetID = new LLUUID("0f5d10f1f0a38634e893b70e00000000");
int length = 6 + 60 + 2 + objectData.NameValue.Length + 1 + 36 + 2 + 40 + 29;
Packet packet = new Packet("ObjectAdd", protocol, length);
int pos = 6;
// InventoryData appears 0 times
packet.Data[pos] = 0;
pos++;
// InventoryFile.Filename is of 1 length
packet.Data[pos] = 1;
pos++;
// InventoryFile.Filename is just a null terminator
packet.Data[pos] = 0;
pos++;
// U32 AddFlags = 2
uint addFlags = 2;
Array.Copy(BitConverter.GetBytes(addFlags), 0, packet.Data, pos, 4);
pos += 4;
packet.Data[pos] = (byte)objectData.PathTwistBegin;
pos++;
packet.Data[pos] = objectData.PathEnd;
pos++;
packet.Data[pos] = objectData.ProfileBegin;
pos++;
packet.Data[pos] = (byte)objectData.PathRadiusOffset;
pos++;
packet.Data[pos] = (byte)objectData.PathSkew;
pos++;
// SenderID
Array.Copy(senderID.Data, 0, packet.Data, pos, 16);
pos += 16;
// RayStart
Array.Copy(rayStart.GetBytes(), 0, packet.Data, pos, 12);
pos += 12;
packet.Data[pos] = objectData.ProfileCurve;
pos++;
packet.Data[pos] = objectData.PathScaleX;
pos++;
packet.Data[pos] = objectData.PathScaleY;
pos++;
// Set GroupID to zero
pos += 16;
packet.Data[pos] = objectData.Material;
pos++;
if (objectData.NameValue.Length != 0)
{
// NameValue, begins with two bytes describing the size
Array.Copy(BitConverter.GetBytes((ushort)(objectData.NameValue.Length + 1)), 0, packet.Data, pos, 2);
pos += 2;
System.Text.Encoding.UTF8.GetBytes(objectData.NameValue, 0, objectData.NameValue.Length, packet.Data, pos);
// Jump an extra spot for the null terminator
pos += objectData.NameValue.Length + 1;
}
else
{
// Set the two size bytes to zero and increment
pos += 2;
}
packet.Data[pos] = objectData.PathShearX;
pos++;
packet.Data[pos] = objectData.PathShearY;
pos++;
packet.Data[pos] = (byte)objectData.PathTaperX;
pos++;
packet.Data[pos] = (byte)objectData.PathTaperY;
pos++;
// RayEndIsIntersection
packet.Data[pos] = 0;
pos++;
// RayEnd is the position to place the object
Array.Copy(position.GetBytes(), 0, packet.Data, pos, 12);
pos += 12;
packet.Data[pos] = objectData.ProfileEnd;
pos++;
packet.Data[pos] = objectData.PathBegin;
pos++;
// BypassRaycast is 0
packet.Data[pos] = 0;
pos++;
// PCode? set to 9
packet.Data[pos] = 9;
pos++;
packet.Data[pos] = objectData.PathCurve;
pos++;
// Scale
Array.Copy(objectData.Scale.GetBytes(), 0, packet.Data, pos, 12);
pos += 12;
// State? is 0
packet.Data[pos] = 0;
pos++;
packet.Data[pos] = (byte)objectData.PathTwist;
pos++;
// TextureEntry, starts with two bytes describing the size
Array.Copy(BitConverter.GetBytes((ushort)40), 0, packet.Data, pos, 2);
pos += 2;
Array.Copy(woodTexture.Data, 0, packet.Data, pos, 16);
pos += 16;
// Fill in the rest of TextureEntry
pos += 19;
packet.Data[pos] = 0xe0;
pos += 5;
packet.Data[pos] = objectData.ProfileHollow;
pos++;
packet.Data[pos] = objectData.PathRevolutions;
pos++;
// Rotation
Array.Copy(objectData.Rotation.GetBytes(), 0, packet.Data, pos, 16);
pos += 16;
// RayTargetID
Array.Copy(rayTargetID.Data, 0, packet.Data, pos, 12);
pos += 12;
// Set the packet flags
packet.Data[0] = /*Helpers.MSG_ZEROCODED +*/ Helpers.MSG_RELIABLE;
return packet;
}
}
}