public void Write(object data, bool allowZip, RangeDescriptor range)
{
var sendobject = GetSendObject(data);
if (allowZip && SupportGZip && IsRequiredGZip(sendobject))
{
SetHeader("Content-Encoding", "gzip");
var ms = EnsureStream(sendobject);
var str = Stream;
if (ms.Length < 1024000 && null == range)
{
str = new MemoryStream();
}
using (var g = new GZipStream(str, CompressionLevel.Optimal, leaveOpen: str != Stream)) {
if (null == range)
{
ms.CopyTo(g, 4096);
}
else
{
CopyRanged(range, ms, g);
}
}
if (str != Stream)
{
SetHeader("Content-Length", str.Length.ToStr());
str.Position = 0;
str.CopyTo(Stream);
}
}
else
{
var bytes = sendobject as byte[];
if (null != bytes)
{
var start = null == range ? 0 : range.Start;
var length = null == range ? bytes.Length : range.Finish - range.Start + 1;
Stream.Write(bytes, (int)start, (int)length);
}
else
{
if (null != range)
{
CopyRanged(range, (Stream)sendobject, Stream);
}
else
{
((Stream)sendobject).CopyTo(Stream);
}
}
}
}
private static void CopyRanged(RangeDescriptor range, Stream source, Stream target)
{
source.Seek(range.Start, SeekOrigin.Current);
var totalLength = range.Finish - range.Start + 1;
var currentLength = 0;
var buffer = new byte[524288];
while (true)
{
if (currentLength >= totalLength)
{
break;
}
;
var readsize = Math.Min(524288, totalLength - currentLength);
var currentChunk = source.Read(buffer, 0, (int)readsize);
if (currentChunk <= 0)
{
break;
}
currentLength += currentChunk;
target.Write(buffer, 0, currentChunk);
}
}
public void Finish(object data, string mime = "application/json", int status = 200, RangeDescriptor range = null)
{
StatusCode = status;
if (mime.Contains("text") || mime.Contains("json"))
{
mime += "; charset=utf-8";
}
ContentType = mime;
if (CallingMethod == "HEAD")
{
ConentLength = 0;
}
else
{
if (null != range)
{
StatusCode = 206;
AddHeader("Content-Range",
string.Format("bytes {0}-{1}/{2}", range.Start, range.Finish, range.Total));
var length = range.Finish - range.Start + 1;
ConentLength = length;
}
else
{
var s = data as string;
if (s != null && s.Length < 512)
{
ConentLength = Encoding.UTF8.GetByteCount(s);
}
}
}
WriteCookies();
if (CallingMethod != "HEAD")
{
Write(data, true, range);
}
Close();
}
public void Finish(object data, string mime = "application/json", int status = 200, RangeDescriptor range = null)
{
Response.Finish(data, mime, status, range);
}