/// <summary>
/// Handle responses from the simulator that tell us a texture we have requested is unable to be located
/// or no longer exists. This will remove the request from the pipeline and free up a slot if one is in use
/// </summary>
/// <param name="sender">The sender</param>
/// <param name="e">The EventArgs object containing the packet data</param>
protected void ImageNotInDatabaseHandler(object sender, PacketReceivedEventArgs e)
{
ImageNotInDatabasePacket imageNotFoundData = (ImageNotInDatabasePacket)e.Packet;
TaskInfo task;
if (TryGetTransferValue(imageNotFoundData.ImageID.ID, out task))
{
// cancel acive request and free up the threadpool slot
if (task.State == TextureRequestState.Progress)
{
resetEvents[task.RequestSlot].Set();
}
// fire callback to inform the caller
foreach (TextureDownloadCallback callback in task.Callbacks)
{
callback(TextureRequestState.NotFound, new AssetTexture(imageNotFoundData.ImageID.ID, Utils.EmptyBytes));
}
resetEvents[task.RequestSlot].Set();
RemoveTransfer(imageNotFoundData.ImageID.ID);
}
else
{
Logger.Log("Received an ImageNotFound packet for an image we did not request: " + imageNotFoundData.ImageID.ID, Helpers.LogLevel.Warning);
}
}
void pipeline_OnDownloadFinished(UUID id, bool success)
{
ImageDownload download;
if (currentDownloads.TryGetValue(id, out download))
{
lock (currentDownloads)
currentDownloads.Remove(id);
if (success)
{
// Set the texture to the downloaded texture data
AssetTexture texture = new AssetTexture(id, Pipeline.GetTextureToRender(id).AssetData);
download.Texture = texture;
Pipeline.RemoveFromPipeline(id);
// Store this texture in the local asset store for later
server.Assets.StoreAsset(texture);
SendTexture(download.Agent, download.Texture, download.DiscardLevel, download.CurrentPacket, download.Priority);
}
else
{
Logger.Log("[Periscope] Failed to download texture " + id.ToString(), Helpers.LogLevel.Warning);
ImageNotInDatabasePacket notfound = new ImageNotInDatabasePacket();
notfound.ImageID.ID = id;
server.UDP.SendPacket(download.Agent.Avatar.ID, notfound, PacketCategory.Texture);
}
}
else
{
Logger.Log("[Periscope] Pipeline downloaded a texture we're not tracking, " + id.ToString(), Helpers.LogLevel.Warning);
}
}
/// <summary>
///
/// </summary>
public void ImageNotInDatabaseCallbackHandler(Packet packet, Simulator simulator)
{
#if DEBUG_PACKETS
slClient.DebugLog(packet);
#endif
ImageNotInDatabasePacket reply = (ImageNotInDatabasePacket)packet;
LLUUID ImageID = reply.ImageID.ID;
// Lookup the request for this packet
TransferRequest tr = null;
lock (htDownloadRequests)
{
if (htDownloadRequests.ContainsKey(ImageID))
{
tr = (TransferRequest)htDownloadRequests[ImageID];
}
else
{
// Received a packet that doesn't belong to any requests in our queue, strange...
return;
}
}
tr.Status = false;
tr.StatusMsg = "Image not in database";
tr.Completed.Set();
// Fire off image downloaded event
FireImageRetrieved(ImageID, null, false, tr.StatusMsg);
}
public void SendImageNotFound(UUID imageid)
{
ImageNotInDatabasePacket p = new ImageNotInDatabasePacket();
p.ImageID.ID = imageid;
SentImageNotInDatabasePackets.Add(p);
}
/// <summary>
/// The requested image does not exist on the asset server
/// </summary>
private void ImageNotInDatabaseHandler(Packet packet, Simulator simulator)
{
ImageNotInDatabasePacket notin = (ImageNotInDatabasePacket)packet;
ImageDownload transfer = null;
lock (Transfers)
{
if (Transfers.ContainsKey(notin.ImageID.ID))
{
transfer = (ImageDownload)Transfers[notin.ImageID.ID];
transfer.NotFound = true;
Transfers.Remove(transfer.ID);
}
}
// Fire the event with our transfer that contains Success = false;
if (transfer != null && OnImageReceived != null)
{
try { OnImageReceived(transfer, null); }
catch (Exception e) { Client.Log(e.ToString(), Helpers.LogLevel.Error); }
}
}
void RequestImageHandler(Packet packet, Agent agent)
{
RequestImagePacket request = (RequestImagePacket)packet;
for (int i = 0; i < request.RequestImage.Length; i++)
{
RequestImagePacket.RequestImageBlock block = request.RequestImage[i];
ImageDownload download;
bool downloadFound = CurrentDownloads.TryGetValue(block.Image, out download);
if (downloadFound)
{
lock (download)
{
if (block.DiscardLevel == -1 && block.DownloadPriority == 0.0f)
{
Logger.DebugLog(String.Format("Image download {0} is aborting", block.Image));
}
else
{
if (block.DiscardLevel < download.DiscardLevel)
{
Logger.DebugLog(String.Format("Image download {0} is changing from DiscardLevel {1} to {2}",
block.Image, download.DiscardLevel, block.DiscardLevel));
}
if (block.DownloadPriority != download.Priority)
{
Logger.DebugLog(String.Format("Image download {0} is changing from Priority {1} to {2}",
block.Image, download.Priority, block.DownloadPriority));
}
if (block.Packet != download.CurrentPacket)
{
Logger.DebugLog(String.Format("Image download {0} is changing from Packet {1} to {2}",
block.Image, download.CurrentPacket, block.Packet));
}
}
// Update download
download.Update(block.DiscardLevel, block.DownloadPriority, (int)block.Packet);
}
}
else if (block.DiscardLevel == -1 && block.DownloadPriority == 0.0f)
{
// Aborting a download we are not tracking, ignore
Logger.DebugLog(String.Format("Aborting an image download for untracked image " + block.Image.ToString()));
}
else
{
bool bake = ((ImageType)block.Type == ImageType.Baked);
// New download, check if we have this image
Asset asset;
if (server.Assets.TryGetAsset(block.Image, out asset) && asset is AssetTexture)
{
download = new ImageDownload((AssetTexture)asset, block.DiscardLevel, block.DownloadPriority,
(int)block.Packet);
Logger.DebugLog(String.Format(
"Starting new download for {0}, DiscardLevel: {1}, Priority: {2}, Start: {3}, End: {4}, Total: {5}",
block.Image, block.DiscardLevel, block.DownloadPriority, download.CurrentPacket, download.StopPacket,
download.TexturePacketCount()));
// Send initial data
ImageDataPacket data = new ImageDataPacket();
data.ImageID.Codec = (byte)ImageCodec.J2C;
data.ImageID.ID = download.Texture.AssetID;
data.ImageID.Packets = (ushort)download.TexturePacketCount();
data.ImageID.Size = (uint)download.Texture.AssetData.Length;
// The first bytes of the image are always sent in the ImageData packet
data.ImageData = new ImageDataPacket.ImageDataBlock();
int imageDataSize = (download.Texture.AssetData.Length >= ImageDownload.FIRST_IMAGE_PACKET_SIZE) ?
ImageDownload.FIRST_IMAGE_PACKET_SIZE : download.Texture.AssetData.Length;
data.ImageData.Data = new byte[imageDataSize];
Buffer.BlockCopy(download.Texture.AssetData, 0, data.ImageData.Data, 0, imageDataSize);
server.UDP.SendPacket(agent.AgentID, data, PacketCategory.Texture);
// Check if ImagePacket packets need to be sent to complete this transfer
if (download.CurrentPacket <= download.StopPacket)
{
// Insert this download into the dictionary
lock (CurrentDownloads)
CurrentDownloads[block.Image] = download;
// Send all of the remaining packets
ThreadPool.QueueUserWorkItem(
delegate(object obj)
{
while (download.CurrentPacket <= download.StopPacket)
{
if (download.Priority == 0.0f && download.DiscardLevel == -1)
{
break;
}
lock (download)
{
int imagePacketSize = (download.CurrentPacket == download.TexturePacketCount() - 1) ?
download.LastPacketSize() : ImageDownload.IMAGE_PACKET_SIZE;
ImagePacketPacket transfer = new ImagePacketPacket();
transfer.ImageID.ID = block.Image;
transfer.ImageID.Packet = (ushort)download.CurrentPacket;
transfer.ImageData.Data = new byte[imagePacketSize];
Buffer.BlockCopy(download.Texture.AssetData, download.CurrentBytePosition(),
transfer.ImageData.Data, 0, imagePacketSize);
server.UDP.SendPacket(agent.AgentID, transfer, PacketCategory.Texture);
++download.CurrentPacket;
}
}
Logger.DebugLog("Completed image transfer for " + block.Image.ToString());
// Transfer is complete, remove the reference
lock (CurrentDownloads)
CurrentDownloads.Remove(block.Image);
}
);
}
}
else
{
Logger.Log("Request for a missing texture " + block.Image.ToString(), Helpers.LogLevel.Warning);
ImageNotInDatabasePacket notfound = new ImageNotInDatabasePacket();
notfound.ImageID.ID = block.Image;
server.UDP.SendPacket(agent.AgentID, notfound, PacketCategory.Texture);
}
}
}
}
private void EnqueueRequest(LLAgent agent, UUID textureID, sbyte discardLevel, float priority, uint packetNumber, uint sequenceNumber)
{
J2KImage image;
// Look up this texture download
lock (m_priorityQueue)
m_queuedTextures.TryGetValue(textureID, out image);
if (image != null)
{
// Update for an existing texture request
if (discardLevel == -1 && priority == 0f)
{
//m_log.Debug("[TEX]: (CAN) ID=" + textureID);
try
{
lock (m_priorityQueue)
{
m_priorityQueue.Delete(image.PriorityQueueHandle);
m_queuedTextures.Remove(textureID);
}
}
catch (Exception) { }
}
else
{
//m_log.DebugFormat("[TEX]: (UPD) ID={0}: D={1}, S={2}, P={3}", textureID, discardLevel, packetNumber, priority);
// Check the packet sequence to make sure this update isn't older than
// one we've already received
if (sequenceNumber > image.LastSequence)
{
// Update the sequence number of the last RequestImage packet
image.LastSequence = sequenceNumber;
//Update the requested discard level
image.DiscardLevel = discardLevel;
//Update the requested packet number
image.StartPacket = Math.Max(1, packetNumber);
//Update the requested priority
image.Priority = priority;
// Update the start/end offsets for this request
image.UpdateOffsets();
UpdateImageInQueue(image);
}
}
}
else
{
// New texture request
if (discardLevel == -1 && priority == 0f)
{
//m_log.DebugFormat("[TEX]: (IGN) ID={0}", textureID);
}
else
{
//m_log.DebugFormat("[TEX]: (NEW) ID={0}: D={1}, S={2}, P={3}", textureID, discardLevel, packetNumber, priority);
Asset asset;
if (m_assetClient.TryGetAsset(textureID, "image/x-j2c", out asset))
{
image = new J2KImage(m_udp, asset, agent, discardLevel, Math.Max(1, packetNumber), priority);
// Update the start/end offsets for this request
image.UpdateOffsets();
// Add this download to the priority queue
UpdateImageInQueue(image);
}
else
{
ImageNotInDatabasePacket missing = new ImageNotInDatabasePacket();
missing.ImageID.ID = textureID;
m_udp.SendPacket(agent, missing, ThrottleCategory.Asset, true);
}
}
}
}
private void EnqueueRequest(LLAgent agent, UUID textureID, sbyte discardLevel, float priority, uint packetNumber, uint sequenceNumber)
{
J2KImage image;
// Look up this texture download
lock (m_priorityQueue)
m_queuedTextures.TryGetValue(textureID, out image);
if (image != null)
{
// Update for an existing texture request
if (discardLevel == -1 && priority == 0f)
{
//m_log.Debug("[TEX]: (CAN) ID=" + textureID);
try
{
lock (m_priorityQueue)
{
m_priorityQueue.Delete(image.PriorityQueueHandle);
m_queuedTextures.Remove(textureID);
}
}
catch (Exception) { }
}
else
{
//m_log.DebugFormat("[TEX]: (UPD) ID={0}: D={1}, S={2}, P={3}", textureID, discardLevel, packetNumber, priority);
// Check the packet sequence to make sure this update isn't older than
// one we've already received
if (sequenceNumber > image.LastSequence)
{
// Update the sequence number of the last RequestImage packet
image.LastSequence = sequenceNumber;
//Update the requested discard level
image.DiscardLevel = discardLevel;
//Update the requested packet number
image.StartPacket = Math.Max(1, packetNumber);
//Update the requested priority
image.Priority = priority;
// Update the start/end offsets for this request
image.UpdateOffsets();
UpdateImageInQueue(image);
}
}
}
else
{
// New texture request
if (discardLevel == -1 && priority == 0f)
{
//m_log.DebugFormat("[TEX]: (IGN) ID={0}", textureID);
}
else
{
//m_log.DebugFormat("[TEX]: (NEW) ID={0}: D={1}, S={2}, P={3}", textureID, discardLevel, packetNumber, priority);
Asset asset;
if (m_assetClient.TryGetAsset(textureID, "image/x-j2c", out asset))
{
image = new J2KImage(m_udp, asset, agent, discardLevel, Math.Max(1, packetNumber), priority);
// Update the start/end offsets for this request
image.UpdateOffsets();
// Add this download to the priority queue
UpdateImageInQueue(image);
}
else
{
ImageNotInDatabasePacket missing = new ImageNotInDatabasePacket();
missing.ImageID.ID = textureID;
m_udp.SendPacket(agent, missing, ThrottleCategory.Asset, true);
}
}
}
}
private Packet ImageDataHandler(Packet packet, IPEndPoint simulator)
{
if (form.getEnabled())
{
ImageDataPacket data = (ImageDataPacket)packet;
//(ImageCodec)data.ImageID.Codec;
byte[] data2 = new byte[(int)data.ImageID.Size];
Buffer.BlockCopy(data.ImageData.Data, 0, data2, 0, data.ImageData.Data.Length);
//we now have it in data...
/*
* data += 8;
* S32 xsiz = ntohl(((U32*)data)[0]);
* S32 ysiz = ntohl(((U32*)data)[1]);
* S32 xosiz = ntohl(((U32*)data)[2]);
* S32 yosiz = ntohl(((U32*)data)[3]);
* S32 xtsiz = ntohl(((U32*)data)[4]);
* S32 ytsiz = ntohl(((U32*)data)[5]);
* //S32 xtosiz = ntohl(((U32*)data)[6]);
* //S32 ytosiz = ntohl(((U32*)data)[7]);
* if(xsiz < 16 || xsiz > 2048 || ysiz < 16 || ysiz > 2048) {
*/
byte[] four = new byte[4];
bool flag = false;
for (int location = 8; location < 30; location += 4)
{
Buffer.BlockCopy(data2, location, four, 0, 4);
int size = BitConverter.ToInt32(ReadBytes(four, 4), 0);
if (flag)
{
Console.WriteLine("Loc = " + location.ToString() + "| IMAGE SIZE = " + size.ToString());
}
if (location == 16 || location == 20)
{
//seem to always be zero
if (size != 0)
{
//SendUserAlert("Well, i really don't think you are ever suposed to get this error... so.. remeber this key and send it to me");
flag = true;
}
}
else
{
if (IsPowerOfTwo((uint)size) && size <= 2048 && size >= 1)
{
///cool
}
else
{
flag = true;
}
}
}
if (flag)
{
//SendUserAlert("We Got a evil Image\nIts key is " + data.ImageID.ID.ToString());
frame.SendUserAlert("Possible Image Crash Prevented");
ImageNotInDatabasePacket no = new ImageNotInDatabasePacket();
no.ImageID.ID = data.ImageID.ID;
proxy.InjectPacket(no, Direction.Incoming);
return(null);
}
}
return(packet);
}
private Packet ImageDataHandler(Packet packet, IPEndPoint simulator)
{
if (form.getEnabled())
{
ImageDataPacket data = (ImageDataPacket)packet;
//(ImageCodec)data.ImageID.Codec;
byte[] data2 = new byte[(int)data.ImageID.Size];
Buffer.BlockCopy(data.ImageData.Data, 0, data2, 0, data.ImageData.Data.Length);
//we now have it in data...
/*
* data += 8;
S32 xsiz = ntohl(((U32*)data)[0]);
S32 ysiz = ntohl(((U32*)data)[1]);
S32 xosiz = ntohl(((U32*)data)[2]);
S32 yosiz = ntohl(((U32*)data)[3]);
S32 xtsiz = ntohl(((U32*)data)[4]);
S32 ytsiz = ntohl(((U32*)data)[5]);
//S32 xtosiz = ntohl(((U32*)data)[6]);
//S32 ytosiz = ntohl(((U32*)data)[7]);
if(xsiz < 16 || xsiz > 2048 || ysiz < 16 || ysiz > 2048) {
*/
byte[] four = new byte[4];
bool flag = false;
for (int location = 8; location < 30; location += 4)
{
Buffer.BlockCopy(data2, location, four, 0, 4);
int size = BitConverter.ToInt32(ReadBytes(four, 4), 0);
if (flag)
Console.WriteLine("Loc = " + location.ToString() + "| IMAGE SIZE = " + size.ToString());
if (location == 16 || location == 20)
{
//seem to always be zero
if (size != 0)
{
//SendUserAlert("Well, i really don't think you are ever suposed to get this error... so.. remeber this key and send it to me");
flag = true;
}
}
else
{
if (IsPowerOfTwo((uint)size) && size <= 2048 && size >= 1)
{
///cool
}
else
{
flag = true;
}
}
}
if (flag)
{
//SendUserAlert("We Got a evil Image\nIts key is " + data.ImageID.ID.ToString());
frame.SendUserAlert("Possible Image Crash Prevented");
ImageNotInDatabasePacket no = new ImageNotInDatabasePacket();
no.ImageID.ID = data.ImageID.ID;
proxy.InjectPacket(no, Direction.Incoming);
return null;
}
}
return packet;
}
