/// <summary>
/// Attempts to return a stream to a file from Blizzard's CDN
/// </summary>
/// <param name="cdnpath">CDN file path excluding the host</param>
/// <returns></returns>
public async Task <Stream> OpenStream(string cdnpath, long from = -1, long to = -1)
{
// used as a 404 check
if (await GetContentLength(cdnpath) == -1)
{
return(null);
}
foreach (var host in GetHosts())
{
HttpWebRequest req = WebRequest.CreateHttp("http://" + host + "/" + cdnpath);
if (from != -1 && to != -1 && to > from)
{
req.AddRange(from, to);
}
try
{
using var resp = (HttpWebResponse) await req.GetResponseAsync().ConfigureAwait(false);
using var stream = resp.GetResponseStream();
using var respStream = ApplyDecryption ? Armadillo.Decrypt(cdnpath, stream) : stream;
var resultStream = new MemoryStream((int)resp.ContentLength);
await respStream.CopyToAsync(resultStream).ConfigureAwait(false);
resultStream.Position = 0;
return(resultStream);
}
catch (WebException) { }
}
return(null);
}
/// <summary>
/// Attempts to return a stream to a file from Blizzard's CDN
/// </summary>
/// <param name="cdnpath">CDN file path excluding the host</param>
/// <returns></returns>
public async Task <Stream> OpenStream(string cdnpath)
{
// used as a 404 check
if (await GetContentLength(cdnpath) == -1)
{
return(null);
}
foreach (var host in GetHosts())
{
HttpWebRequest req = WebRequest.CreateHttp("http://" + host + "/" + cdnpath);
try
{
using (var resp = (HttpWebResponse)await req.GetResponseAsync().ConfigureAwait(false))
{
var respStream = resp.GetResponseStream();
return(ApplyDecryption ? Armadillo.Decrypt(cdnpath, respStream) : respStream);
}
}
catch (WebException) { }
}
return(null);
}
