public HttpResponseMessage Get(string p)
{
try
{
//không check login vì ảnh hưởng đến performance
//if (!Common.CheckLogin()) return null;
var response = Request.CreateResponse();
response.Headers.TransferEncodingChunked = true;
response.Headers.Add("Accept-Ranges", "bytes");
response.Headers.Add("Keep-Alive", "timeout=10");
//path.combine error??
//var appPath = WebConfigurationManager.AppSettings["PhysicalPath"];
var fileInfo = new FileInfo((appPath + p).Replace("\\", "/"));
//check path
if (string.IsNullOrEmpty(p))
{
response.StatusCode = HttpStatusCode.NotFound;
return(response);
}
if (!File.Exists(appPath + p))
{
response.StatusCode = HttpStatusCode.NotFound;
return(response);
}
var rangeHeader = Request.Headers.Range;
var totalLength = fileInfo.Length;
long start = 0, end = totalLength - 1;
ContentRangeHeaderValue contentRange = null;
//không có range hoặc là range gồm toàn bộ file
if (rangeHeader == null || !rangeHeader.Ranges.Any())
{
Common.WriteDebug("StreammingController, line 49 ", "Request video range is null or all file! \r\n" + p);
response.Headers.AcceptRanges.Add("bytes");
response.StatusCode = HttpStatusCode.OK;
}
else
{
if (rangeHeader.Unit != "bytes" || rangeHeader.Ranges.Count > 1 ||
!MediaUtilities.CheckRangeItem(rangeHeader.Ranges.First(), totalLength, out start, out end))
{
Common.WriteDebug("StreammingController, line 58", "Request video range is invalid! \r\n" + p);
response.StatusCode = HttpStatusCode.RequestedRangeNotSatisfiable;
response.Content = new StreamContent(Stream.Null);
response.Content.Headers.ContentRange = new ContentRangeHeaderValue(totalLength);
response.Content.Headers.ContentType =
new MediaTypeHeaderValue(MediaUtilities.GetMimeType(fileInfo.Extension));
//trả về null stream
return(response);
}
//range hợp lệ
Common.WriteDebug("StreammingController, line 68", "Request video range is valid, send content! \r\n" + p);
contentRange = new ContentRangeHeaderValue(start, end, totalLength);
}
// status code là partial content.
response.StatusCode = HttpStatusCode.PartialContent;
response.Headers.TransferEncodingChunked = true;
if (fileInfo.Extension.ToLower().Equals(".oga") ||
fileInfo.Extension.ToLower().Equals(".mp3") ||
fileInfo.Extension.ToLower().Equals(".flac"))
{
response.Content = AudioContent(fileInfo, start, end);
response.Content.Headers.ContentLength = end - start + 1;
response.Headers.TransferEncodingChunked = null;
response.Content.Headers.ContentType = new MediaTypeHeaderValue(MediaUtilities.GetMimeType(fileInfo.Extension));
}
else
{
var vid = new VideoStream(appPath + p, start, end);
response.Content = VideoContent(vid, fileInfo.Extension);
response.Content.Headers.ContentType = new MediaTypeHeaderValue("video/mp4");
}
if (contentRange != null)
{
response.Content.Headers.ContentRange = contentRange;
}
//if (Request.Headers.UserAgent.ToString().Contains("Firefox")) return response;
response.Content.Headers.ContentLength = end - start + 1;
return(response);
}
catch (Exception ex)
{
Common.WriteLog(MethodBase.GetCurrentMethod().Name, ex + ex.StackTrace);
return(null);
}
}
