public static Asset Get(long assetId, string idPiece = "/asset/?ID=")
{
if (!assetCache.ContainsKey(assetId))
{
string appData = Environment.GetEnvironmentVariable("LocalAppData");
string assetCacheDir = Path.Combine(appData, "Rbx2Source", "AssetCache");
Directory.CreateDirectory(assetCacheDir);
// Ping Roblox to figure out what this asset's cdn url is
HttpWebRequest ping = WebRequest.CreateHttp("https://assetgame.roblox.com" + idPiece + assetId);
ping.UserAgent = "Roblox";
ping.Method = "HEAD";
ping.AllowAutoRedirect = false;
Asset asset = null;
string location = "";
string identifier = "";
string cachedFile = "";
try
{
using (var response = ping.GetResponse() as HttpWebResponse)
{
location = response.GetResponseHeader("Location");
identifier = location.Remove(0, 8).Replace(".rbxcdn.com/", "-");
cachedFile = assetCacheDir + '\\' + identifier.Replace('/', '\\');
if (File.Exists(cachedFile))
{
string cachedContent = File.ReadAllText(cachedFile);
try
{
asset = JsonConvert.DeserializeObject <Asset>(cachedContent);
if (asset.Content.Length == 0)
{
asset = null;
throw new Exception();
}
Rbx2Source.Print("Fetched pre-cached asset {0}", assetId);
}
catch
{
// Corrupted file?
if (File.Exists(cachedFile))
{
Rbx2Source.Print("Deleting corrupted file {0}", cachedFile);
File.Delete(cachedFile);
}
}
}
}
}
catch
{
Console.WriteLine("Failed to fetch {0}?", assetId);
}
if (asset == null)
{
WebClient http = new WebClient();
http.UseDefaultCredentials = true;
http.Headers.Set(HttpRequestHeader.UserAgent, "Roblox");
http.Proxy = null;
asset = new Asset();
asset.Id = assetId;
try
{
string productInfoJson = http.DownloadString("http://api.roblox.com/marketplace/productinfo?assetId=" + assetId);
asset.ProductInfo = JsonConvert.DeserializeObject <ProductInfo>(productInfoJson);
asset.ProductInfo.WindowsSafeName = FileUtility.MakeNameWindowsSafe(asset.ProductInfo.Name);
asset.AssetType = asset.ProductInfo.AssetTypeId;
}
catch
{
ProductInfo dummyInfo = new ProductInfo();
dummyInfo.Name = "unknown_" + asset.Id;
dummyInfo.WindowsSafeName = dummyInfo.Name;
dummyInfo.AssetTypeId = AssetType.Model;
}
asset.CdnUrl = location;
asset.CdnCacheId = identifier;
asset.GetContent();
asset.Loaded = true;
string serialized = JsonConvert.SerializeObject(asset, Formatting.None);
try
{
File.WriteAllText(cachedFile, serialized);
Rbx2Source.Print("Precached AssetId {0}", assetId);
}
catch
{
// Oh well.
Rbx2Source.Print("Failed to cache AssetId {0}", assetId);
}
}
assetCache[assetId] = asset;
}
return(assetCache[assetId]);
}
