/// <summary>Check the queue for pending work</summary>
private void EnqueuePending()
{
lock (queue)
{
if (queue.Count > 0)
{
int nr = 0;
lock (activeDownloads) nr = activeDownloads.Count;
for (int i = nr; i < ParallelDownloads && queue.Count > 0; i++)
{
DownloadRequest item = queue.Dequeue();
Logger.DebugLog("Requesting " + item.Address.ToString());
HttpWebRequest req = SetupRequest(item.Address, item.ContentType);
CapsBase.DownloadDataAsync(
req,
item.MillisecondsTimeout,
item.DownloadProgressCallback,
(HttpWebRequest request, HttpWebResponse response, byte[] responseData, Exception error) =>
{
lock (activeDownloads) activeDownloads.Remove(request);
item.CompletedCallback(request, response, responseData, error);
EnqueuePending();
}
);
lock (activeDownloads) activeDownloads.Add(req);
}
}
}
}
/// <summary>Enqueue a new HTPP download</summary>
public void QueueDownlad(DownloadRequest req)
{
lock (queue)
{
queue.Enqueue(req);
}
EnqueuePending();
}
/// <summary>Enqueue a new HTPP download</summary>
public void QueueDownlad(DownloadRequest req)
{
lock (activeDownloads)
{
string addr = req.Address.ToString();
if (activeDownloads.ContainsKey(addr))
{
activeDownloads[addr].CompletedHandlers.Add(req.CompletedCallback);
if (req.DownloadProgressCallback != null)
{
activeDownloads[addr].ProgresHadlers.Add(req.DownloadProgressCallback);
}
return;
}
}
lock (queue)
{
queue.Enqueue(req);
}
EnqueuePending();
}
/// <summary>
/// Fetach avatar texture on a grid capable of server side baking
/// </summary>
/// <param name="avatarID">ID of the avatar</param>
/// <param name="textureID">ID of the texture</param>
/// <param name="bakeName">Name of the part of the avatar texture applies to</param>
/// <param name="callback">Callback invoked on operation completion</param>
public void RequestServerBakedImage(UUID avatarID, UUID textureID, string bakeName, TextureDownloadCallback callback)
{
if (avatarID == UUID.Zero || textureID == UUID.Zero || callback == null)
return;
if (string.IsNullOrEmpty(Client.Network.AgentAppearanceServiceURL))
{
callback(TextureRequestState.NotFound, null);
return;
}
byte[] assetData;
// Do we have this image in the cache?
if (Client.Assets.Cache.HasAsset(textureID)
&& (assetData = Client.Assets.Cache.GetCachedAssetBytes(textureID)) != null)
{
ImageDownload image = new ImageDownload();
image.ID = textureID;
image.AssetData = assetData;
image.Size = image.AssetData.Length;
image.Transferred = image.AssetData.Length;
image.ImageType = ImageType.ServerBaked;
image.AssetType = AssetType.Texture;
image.Success = true;
callback(TextureRequestState.Finished, new AssetTexture(image.ID, image.AssetData));
FireImageProgressEvent(image.ID, image.Transferred, image.Size);
return;
}
CapsBase.DownloadProgressEventHandler progressHandler = null;
Uri url = new Uri(string.Format("{0}texture/{1}/{2}/{3}", Client.Network.AgentAppearanceServiceURL, avatarID, bakeName, textureID));
DownloadRequest req = new DownloadRequest(
url,
Client.Settings.CAPS_TIMEOUT,
"image/x-j2c",
progressHandler,
(HttpWebRequest request, HttpWebResponse response, byte[] responseData, Exception error) =>
{
if (error == null && responseData != null) // success
{
ImageDownload image = new ImageDownload();
image.ID = textureID;
image.AssetData = responseData;
image.Size = image.AssetData.Length;
image.Transferred = image.AssetData.Length;
image.ImageType = ImageType.ServerBaked;
image.AssetType = AssetType.Texture;
image.Success = true;
callback(TextureRequestState.Finished, new AssetTexture(image.ID, image.AssetData));
Client.Assets.Cache.SaveAssetToCache(textureID, responseData);
}
else // download failed
{
Logger.Log(
string.Format("Failed to fetch server bake {0}: {1}",
textureID,
(error == null) ? "" : error.Message
),
Helpers.LogLevel.Warning, Client);
callback(TextureRequestState.Timeout, null);
}
}
);
HttpDownloads.QueueDownload(req);
}
/// <summary>
/// Requests download of a mesh asset
/// </summary>
/// <param name="meshID">UUID of the mesh asset</param>
/// <param name="callback">Callback when the request completes</param>
public void RequestMesh(UUID meshID, MeshDownloadCallback callback)
{
if (meshID == UUID.Zero || callback == null)
return;
if (Client.Network.CurrentSim.Caps != null &&
Client.Network.CurrentSim.Caps.CapabilityURI("GetMesh") != null)
{
// Do we have this mesh asset in the cache?
if (Client.Assets.Cache.HasAsset(meshID))
{
callback(true, new AssetMesh(meshID, Client.Assets.Cache.GetCachedAssetBytes(meshID)));
return;
}
Uri url = Client.Network.CurrentSim.Caps.CapabilityURI("GetMesh");
DownloadRequest req = new DownloadRequest(
new Uri(string.Format("{0}/?mesh_id={1}", url.ToString(), meshID.ToString())),
Client.Settings.CAPS_TIMEOUT,
null,
null,
(HttpWebRequest request, HttpWebResponse response, byte[] responseData, Exception error) =>
{
if (error == null && responseData != null) // success
{
callback(true, new AssetMesh(meshID, responseData));
Client.Assets.Cache.SaveAssetToCache(meshID, responseData);
}
else // download failed
{
Logger.Log(
string.Format("Failed to fetch mesh asset {0}: {1}",
meshID,
(error == null) ? "" : error.Message
),
Helpers.LogLevel.Warning, Client);
}
}
);
HttpDownloads.QueueDownload(req);
}
else
{
Logger.Log("GetMesh capability not available", Helpers.LogLevel.Error, Client);
callback(false, null);
}
}
// Helper method for downloading textures via GetTexture cap
// Same signature as the UDP variant since we need all the params to
// pass to the UDP TexturePipeline in case we need to fall back to it
// (Linden servers currently (1.42) don't support bakes downloads via HTTP)
private void HttpRequestTexture(UUID textureID, ImageType imageType, float priority, int discardLevel,
uint packetStart, TextureDownloadCallback callback, bool progress)
{
if (textureID == UUID.Zero || callback == null)
return;
byte[] assetData;
// Do we have this image in the cache?
if (Client.Assets.Cache.HasAsset(textureID)
&& (assetData = Client.Assets.Cache.GetCachedAssetBytes(textureID)) != null)
{
ImageDownload image = new ImageDownload();
image.ID = textureID;
image.AssetData = assetData;
image.Size = image.AssetData.Length;
image.Transferred = image.AssetData.Length;
image.ImageType = imageType;
image.AssetType = AssetType.Texture;
image.Success = true;
callback(TextureRequestState.Finished, new AssetTexture(image.ID, image.AssetData));
FireImageProgressEvent(image.ID, image.Transferred, image.Size);
return;
}
CapsBase.DownloadProgressEventHandler progressHandler = null;
if (progress)
{
progressHandler = (HttpWebRequest request, HttpWebResponse response, int bytesReceived, int totalBytesToReceive) =>
{
FireImageProgressEvent(textureID, bytesReceived, totalBytesToReceive);
};
}
Uri url = Client.Network.CurrentSim.Caps.CapabilityURI("GetTexture");
DownloadRequest req = new DownloadRequest(
new Uri(string.Format("{0}/?texture_id={1}", url.ToString(), textureID.ToString())),
Client.Settings.CAPS_TIMEOUT,
"image/x-j2c",
progressHandler,
(HttpWebRequest request, HttpWebResponse response, byte[] responseData, Exception error) =>
{
if (error == null && responseData != null) // success
{
ImageDownload image = new ImageDownload();
image.ID = textureID;
image.AssetData = responseData;
image.Size = image.AssetData.Length;
image.Transferred = image.AssetData.Length;
image.ImageType = imageType;
image.AssetType = AssetType.Texture;
image.Success = true;
callback(TextureRequestState.Finished, new AssetTexture(image.ID, image.AssetData));
FireImageProgressEvent(image.ID, image.Transferred, image.Size);
Client.Assets.Cache.SaveAssetToCache(textureID, responseData);
}
else // download failed
{
Logger.Log(
string.Format("Failed to fetch texture {0} over HTTP, falling back to UDP: {1}",
textureID,
(error == null) ? "" : error.Message
),
Helpers.LogLevel.Warning, Client);
Texture.RequestTexture(textureID, imageType, priority, discardLevel, packetStart, callback, progress);
}
}
);
HttpDownloads.QueueDownload(req);
}
/// <summary>Check the queue for pending work</summary>
private void EnqueuePending()
{
lock (queue)
{
if (queue.Count > 0)
{
int nr = 0;
lock (activeDownloads)
{
nr = activeDownloads.Count;
}
Logger.DebugLog(nr.ToString() + " active downloads. Queued textures: " + queue.Count.ToString());
for (int i = nr; i < ParallelDownloads && queue.Count > 0; i++)
{
DownloadRequest item = queue.Dequeue();
lock (activeDownloads)
{
string addr = item.Address.ToString();
if (activeDownloads.ContainsKey(addr))
{
activeDownloads[addr].CompletedHandlers.Add(item.CompletedCallback);
if (item.DownloadProgressCallback != null)
{
activeDownloads[addr].ProgresHadlers.Add(item.DownloadProgressCallback);
}
}
else
{
ActiveDownload activeDownload = new ActiveDownload();
activeDownload.CompletedHandlers.Add(item.CompletedCallback);
if (item.DownloadProgressCallback != null)
{
activeDownload.ProgresHadlers.Add(item.DownloadProgressCallback);
}
Logger.DebugLog("Requesting " + item.Address.ToString());
activeDownload.Request = SetupRequest(item.Address, item.ContentType);
CapsBase.DownloadDataAsync(
activeDownload.Request,
item.MillisecondsTimeout,
(HttpWebRequest request, HttpWebResponse response, int bytesReceived, int totalBytesToReceive) =>
{
foreach (CapsBase.DownloadProgressEventHandler handler in activeDownload.ProgresHadlers)
{
handler(request, response, bytesReceived, totalBytesToReceive);
}
},
(HttpWebRequest request, HttpWebResponse response, byte[] responseData, Exception error) =>
{
lock (activeDownloads) activeDownloads.Remove(addr);
if (error == null || item.Attempt >= item.Retries || (error != null && error.Message.Contains("404")))
{
foreach (CapsBase.RequestCompletedEventHandler handler in activeDownload.CompletedHandlers)
{
handler(request, response, responseData, error);
}
}
else
{
item.Attempt++;
Logger.Log(string.Format("Texture {0} HTTP download failed, trying again retry {1}/{2}",
item.Address, item.Attempt, item.Retries), Helpers.LogLevel.Warning);
lock (queue) queue.Enqueue(item);
}
EnqueuePending();
}
);
activeDownloads[addr] = activeDownload;
}
}
}
}
}
}
/// <summary>Enqueue a new HTPP download</summary>
public void QueueDownlad(DownloadRequest req)
{
lock (queue)
{
queue.Enqueue(req);
}
EnqueuePending();
}
/// <summary>Enqueue a new HTTP download</summary>
public void QueueDownload(DownloadRequest req)
{
lock (activeDownloads)
{
string addr = req.Address.ToString();
if (activeDownloads.ContainsKey(addr))
{
activeDownloads[addr].CompletedHandlers.Add(req.CompletedCallback);
if (req.DownloadProgressCallback != null)
{
activeDownloads[addr].ProgresHadlers.Add(req.DownloadProgressCallback);
}
return;
}
}
lock (queue)
{
queue.Enqueue(req);
}
EnqueuePending();
}
/// <summary>Check the queue for pending work</summary>
private void EnqueuePending()
{
lock (queue)
{
if (queue.Count > 0)
{
int nr = 0;
lock (activeDownloads)
{
nr = activeDownloads.Count;
}
for (int i = nr; i < ParallelDownloads && queue.Count > 0; i++)
{
DownloadRequest item = queue.Dequeue();
lock (activeDownloads)
{
string addr = item.Address.ToString();
if (activeDownloads.ContainsKey(addr))
{
activeDownloads[addr].CompletedHandlers.Add(item.CompletedCallback);
if (item.DownloadProgressCallback != null)
{
activeDownloads[addr].ProgresHadlers.Add(item.DownloadProgressCallback);
}
}
else
{
ActiveDownload activeDownload = new ActiveDownload();
activeDownload.CompletedHandlers.Add(item.CompletedCallback);
if (item.DownloadProgressCallback != null)
{
activeDownload.ProgresHadlers.Add(item.DownloadProgressCallback);
}
Logger.DebugLog("Requesting " + item.Address.ToString());
activeDownload.Request = SetupRequest(item.Address, item.ContentType);
CapsBase.DownloadDataAsync(
activeDownload.Request,
item.MillisecondsTimeout,
(HttpWebRequest request, HttpWebResponse response, int bytesReceived, int totalBytesToReceive) =>
{
foreach (CapsBase.DownloadProgressEventHandler handler in activeDownload.ProgresHadlers)
{
handler(request, response, bytesReceived, totalBytesToReceive);
}
},
(HttpWebRequest request, HttpWebResponse response, byte[] responseData, Exception error) =>
{
lock (activeDownloads) activeDownloads.Remove(addr);
foreach (CapsBase.RequestCompletedEventHandler handler in activeDownload.CompletedHandlers)
{
handler(request, response, responseData, error);
}
EnqueuePending();
}
);
activeDownloads[addr] = activeDownload;
}
}
}
}
}
}
