/// <summary>
/// Sends file as response and requests the data to be downloaded as an attachment
/// </summary>
/// <param name="filePath">The local path of the file to send</param>
/// <param name="fileName">The name filename the client receives the file with, defaults to using the actual filename</param>
/// <param name="contentType">
/// The mime type for the file, when set to null, the system will try to detect based on file
/// extension
/// </param>
/// <param name="status">The status code for the response</param>
public async Task Download(string filePath, string fileName = null, string contentType = "",
HttpStatusCode status = HttpStatusCode.OK)
{
UnderlyingResponse.StatusCode = (int)status;
UnderlyingResponse.ContentType = GetMime(contentType, filePath);
var name = string.IsNullOrEmpty(fileName) ? Path.GetFileName(filePath) : fileName;
AddHeader("Content-disposition", $"attachment; filename=\"{name}\"");
await UnderlyingResponse.SendFileAsync(filePath);
Closed = true;
}
/// <summary>
/// Sends file as response and requests the data to be displayed in-browser if possible
/// </summary>
/// <param name="filePath">The local path of the file to send</param>
/// <param name="contentType">
/// The mime type for the file, when set to null, the system will try to detect based on file
/// extension
/// </param>
/// <param name="status">The status code for the response</param>
public async Task SendFile(string filePath, string contentType = null, HttpStatusCode status = HttpStatusCode.OK)
{
UnderlyingResponse.StatusCode = (int)status;
if (contentType == null && !MimeTypes.TryGetValue(Path.GetExtension(filePath), out contentType))
{
contentType = "application/octet-stream";
}
UnderlyingResponse.ContentType = contentType;
UnderlyingResponse.Headers.Add("Accept-Ranges", "bytes");
UnderlyingResponse.Headers.Add("Content-disposition", $"inline; filename=\"{Path.GetFileName(filePath)}\"");
await UnderlyingResponse.SendFileAsync(filePath);
Closed = true;
}
/// <summary>
/// Sends file as response and requests the data to be downloaded as an attachment
/// </summary>
/// <param name="filePath">The local path of the file to send</param>
/// <param name="fileName">The name filename the client receives the file with, defaults to using the actual filename</param>
/// <param name="contentType">
/// The mime type for the file, when set to null, the system will try to detect based on file
/// extension
/// </param>
/// <param name="status">The status code for the response</param>
public async Task Download(string filePath, string fileName = null, string contentType = "",
HttpStatusCode status = HttpStatusCode.OK)
{
UnderlyingResponse.StatusCode = (int)status;
if (contentType == null && !MimeTypes.TryGetValue(Path.GetExtension(filePath), out contentType))
{
contentType = "application/octet-stream";
}
UnderlyingResponse.ContentType = contentType;
var name = string.IsNullOrEmpty(fileName) ? Path.GetFileName(filePath) : fileName;
UnderlyingResponse.Headers.Add("Content-disposition", $"attachment; filename=\"{name}\"");
await UnderlyingResponse.SendFileAsync(filePath);
Closed = true;
}
/// <summary>
/// Sends file as response and requests the data to be displayed in-browser if possible
/// </summary>
/// <param name="filePath">The local path of the file to send</param>
/// <param name="contentType">
/// The mime type for the file, when set to null, the system will try to detect based on file
/// extension
/// </param>
/// <param name="handleRanges">Whether to enable handling of range-requests for the file(s) served</param>
/// <param name="status">The status code for the response</param>
public async Task SendFile(string filePath, string contentType = null, bool handleRanges = true,
HttpStatusCode status = HttpStatusCode.OK)
{
if (handleRanges)
{
AddHeader("Accept-Ranges", "bytes");
}
var fileSize = new FileInfo(filePath).Length;
var range = UnderlyingContext.Request.GetTypedHeaders().Range;
if (range != null && range.Ranges.Any())
{
var firstRange = range.Ranges.First();
if (range.Unit != "bytes" || (!firstRange.From.HasValue && !firstRange.To.HasValue))
{
await SendStatus(HttpStatusCode.BadRequest);
return;
}
var offset = firstRange.From ?? fileSize - firstRange.To.Value;
var length = firstRange.To.HasValue
? fileSize - offset - (fileSize - firstRange.To.Value)
: fileSize - offset;
UnderlyingResponse.StatusCode = (int)HttpStatusCode.PartialContent;
UnderlyingResponse.ContentType = GetMime(contentType, filePath);
UnderlyingResponse.ContentLength = length;
AddHeader("Content-Disposition", $"inline; filename=\"{Path.GetFileName(filePath)}\"");
AddHeader("Content-Range", $"bytes {offset}-{offset + length - 1}/{fileSize}");
await UnderlyingResponse.SendFileAsync(filePath, offset, length);
}
else
{
UnderlyingResponse.StatusCode = (int)status;
UnderlyingResponse.ContentType = GetMime(contentType, filePath);
UnderlyingResponse.ContentLength = fileSize;
AddHeader("Content-Disposition", $"inline; filename=\"{Path.GetFileName(filePath)}\"");
await UnderlyingResponse.SendFileAsync(filePath);
}
Closed = true;
}