4a68f70b00
git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@751 52acb1d6-8a22-11de-b505-999d5b087335
317 lines
11 KiB
C#
317 lines
11 KiB
C#
/*
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* Copyright (c) 2006, Second Life Reverse Engineering Team
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* All rights reserved.
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*
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* - Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* - Neither the name of the Second Life Reverse Engineering Team nor the names
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* of its contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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//#define DEBUG_PACKETS
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using System;
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using System.Collections.Generic;
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using libsecondlife;
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using libsecondlife.InventorySystem;
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using libsecondlife.Packets;
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using System.Threading;
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namespace libsecondlife.AssetSystem
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{
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/// <summary>
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/// Summary description for AssetManager.
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/// </summary>
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public class AssetManager
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{
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public const int SINK_FEE_IMAGE = 1;
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private SecondLife slClient;
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private AssetRequestUpload curUploadRequest = null;
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private Dictionary<LLUUID, AssetRequestDownload> htDownloadRequests = new Dictionary<LLUUID, AssetRequestDownload>();
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/// <summary>
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/// </summary>
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/// <param name="client"></param>
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internal AssetManager(SecondLife client)
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{
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slClient = client;
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// Need to know when we're Connected/Disconnected to clear state
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slClient.Network.OnDisconnected += new NetworkManager.DisconnectCallback(Network_OnDisconnected);
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slClient.Network.OnConnected += new NetworkManager.ConnectedCallback(Network_OnConnected);
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// Used to upload small assets, or as an initial start packet for large transfers
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slClient.Network.RegisterCallback(PacketType.AssetUploadComplete, new NetworkManager.PacketCallback(AssetUploadCompleteCallbackHandler));
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// Transfer Packets for downloading large assets
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slClient.Network.RegisterCallback(PacketType.TransferInfo, new NetworkManager.PacketCallback(TransferInfoCallbackHandler));
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slClient.Network.RegisterCallback(PacketType.TransferPacket, new NetworkManager.PacketCallback(TransferPacketCallbackHandler));
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// XFer packets for uploading large assets
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slClient.Network.RegisterCallback(PacketType.ConfirmXferPacket, new NetworkManager.PacketCallback(ConfirmXferPacketCallbackHandler));
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slClient.Network.RegisterCallback(PacketType.RequestXfer, new NetworkManager.PacketCallback(RequestXferCallbackHandler));
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}
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void Network_OnConnected(object sender)
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{
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ClearState();
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}
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void Network_OnDisconnected(NetworkManager.DisconnectType reason, string message)
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{
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ClearState();
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}
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private void ClearState()
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{
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htDownloadRequests.Clear();
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curUploadRequest = null;
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}
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/// <summary>
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/// Handle the appropriate sink fee associated with an asset upload
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/// </summary>
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/// <param name="sinkType"></param>
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public void SinkFee(int sinkType)
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{
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switch( sinkType )
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{
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case SINK_FEE_IMAGE:
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slClient.Self.GiveMoney( LLUUID.Zero, slClient.Settings.UPLOAD_COST, "Image Upload" );
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break;
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default:
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throw new Exception("AssetManager: Unknown sinktype (" + sinkType + ")");
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}
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}
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/// <summary>
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/// Upload an asset to Second Life
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/// </summary>
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/// <param name="asset">The asset to be uploaded</param>
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/// <returns>The Asset ID of the completed upload</returns>
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public LLUUID UploadAsset(Asset asset)
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{
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if (curUploadRequest != null)
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{
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throw new Exception("An existing asset upload is currently in-progress.");
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}
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try
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{
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curUploadRequest = new AssetRequestUpload(slClient, LLUUID.Random(), asset);
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LLUUID assetID = curUploadRequest.DoUpload();
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if (asset.Type == Asset.ASSET_TYPE_IMAGE)
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{
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SinkFee(SINK_FEE_IMAGE);
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}
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return assetID;
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}
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finally
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{
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curUploadRequest = null;
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}
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}
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/// <summary>
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/// Get the Asset data for an item, must be used when requesting a Notecard
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/// </summary>
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/// <param name="item"></param>
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public void GetInventoryAsset( InventoryItem item )
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{
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LLUUID TransferID = LLUUID.Random();
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AssetRequestDownload request = new AssetRequestDownload(TransferID);
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request.Size = int.MaxValue; // Number of bytes expected
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request.Received = 0; // Number of bytes received
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request.UpdateLastPacketTime(); // last time we recevied a packet for this request
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htDownloadRequests[TransferID] = request;
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// prep packet based on asset type
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Packet packet;
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switch (item.Type)
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{
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case 5: //Shirt
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case 13: //Bodyshape
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packet = AssetPacketHelpers.TransferRequestDirect(slClient.Network.SessionID, slClient.Network.AgentID, TransferID, item.AssetID, item.Type);
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break;
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default:
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packet = AssetPacketHelpers.TransferRequest(slClient.Network.SessionID, slClient.Network.AgentID, TransferID, item );
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break;
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}
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// Send packet
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slClient.Network.SendPacket(packet);
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#if DEBUG_PACKETS
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slClient.DebugLog(packet);
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#endif
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request.Completed.WaitOne();
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item.SetAssetData(request.AssetData);
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}
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/// <summary>
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/// Get Asset data, works with BodyShapes (type 13) but does not work with Notecards(type 7)
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/// </summary>
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/// <param name="asset"></param>
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public void GetInventoryAsset(Asset asset)
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{
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LLUUID TransferID = LLUUID.Random();
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AssetRequestDownload request = new AssetRequestDownload(TransferID);
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request.Size = int.MaxValue; // Number of bytes expected
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request.Received = 0; // Number of bytes received
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request.UpdateLastPacketTime(); // last time we recevied a packet for this request
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htDownloadRequests[TransferID] = request;
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Packet packet = AssetPacketHelpers.TransferRequestDirect(slClient.Network.SessionID, slClient.Network.AgentID, TransferID, asset.AssetID, asset.Type);
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slClient.Network.SendPacket(packet);
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#if DEBUG_PACKETS
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slClient.DebugLog(packet);
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#endif
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request.Completed.WaitOne();
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asset.SetAssetData(request.AssetData);
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}
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private void AssetUploadCompleteCallbackHandler(Packet packet, Simulator simulator)
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{
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#if DEBUG_PACKETS
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slClient.DebugLog(packet);
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#endif
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Packets.AssetUploadCompletePacket reply = (AssetUploadCompletePacket)packet;
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curUploadRequest.UploadComplete(reply.AssetBlock.UUID, reply.AssetBlock.Success);
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}
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private void RequestXferCallbackHandler(Packet packet, Simulator simulator)
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{
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#if DEBUG_PACKETS
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slClient.DebugLog(packet);
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#endif
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RequestXferPacket reply = (RequestXferPacket)packet;
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ulong XferID = reply.XferID.ID;
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// LLUUID AssetID = reply.XferID.VFileID; //Not used...
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curUploadRequest.RequestXfer(XferID);
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}
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private void ConfirmXferPacketCallbackHandler(Packet packet, Simulator simulator)
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{
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#if DEBUG_PACKETS
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slClient.DebugLog(packet);
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#endif
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ConfirmXferPacketPacket reply = (ConfirmXferPacketPacket)packet;
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curUploadRequest.ConfirmXferPacket(reply.XferID.ID, reply.XferID.Packet);
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}
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private void TransferInfoCallbackHandler(Packet packet, Simulator simulator)
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{
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#if DEBUG_PACKETS
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slClient.DebugLog(packet);
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#endif
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TransferInfoPacket reply = (TransferInfoPacket)packet;
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LLUUID TransferID = reply.TransferInfo.TransferID;
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int Size = reply.TransferInfo.Size;
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int Status = reply.TransferInfo.Status;
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// Lookup the request for this packet
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AssetRequestDownload request = htDownloadRequests[TransferID];
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if (request == null)
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{
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return;
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}
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// Mark it as either not found or update the request information
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if (Status == -2)
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{
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request.Status = false;
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request.StatusMsg = "Asset Status -2 :: Likely Status Not Found";
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request.Size = 0;
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request.AssetData = new byte[0];
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request.Completed.Set();
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}
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else
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{
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request.Size = Size;
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request.AssetData = new byte[Size];
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}
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}
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private void TransferPacketCallbackHandler(Packet packet, Simulator simulator)
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{
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#if DEBUG_PACKETS
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slClient.DebugLog(packet);
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#endif
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TransferPacketPacket reply = (TransferPacketPacket)packet;
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LLUUID TransferID = reply.TransferData.TransferID;
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byte[] Data = reply.TransferData.Data;
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// Append data to data received.
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AssetRequestDownload request = htDownloadRequests[TransferID];
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if (request == null)
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{
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return;
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}
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// Add data to data dictionary.
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request.AssetDataReceived[reply.TransferData.Packet] = Data;
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request.Received += Data.Length;
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// If we've gotten all the data, mark it completed.
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if (request.Received >= request.Size)
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{
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int curPos = 0;
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foreach (KeyValuePair<int,byte[]> kvp in request.AssetDataReceived)
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{
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Array.Copy(kvp.Value, 0, request.AssetData, curPos, kvp.Value.Length);
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curPos += kvp.Value.Length;
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}
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request.Completed.Set();
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}
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}
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}
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}
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