/// <inheritdoc />
public override Task ExecuteResultAsync(ActionContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var loggerFactory = context.HttpContext.RequestServices.GetRequiredService<ILoggerFactory>();
var logger = loggerFactory.CreateLogger<FileResult>();
var response = context.HttpContext.Response;
response.ContentType = ContentType.ToString();
if (!string.IsNullOrEmpty(FileDownloadName))
{
// From RFC 2183, Sec. 2.3:
// The sender may want to suggest a filename to be used if the entity is
// detached and stored in a separate file. If the receiving MUA writes
// the entity to a file, the suggested filename should be used as a
// basis for the actual filename, where possible.
var contentDisposition = new ContentDispositionHeaderValue("attachment");
contentDisposition.SetHttpFileName(FileDownloadName);
context.HttpContext.Response.Headers[HeaderNames.ContentDisposition] = contentDisposition.ToString();
}
logger.FileResultExecuting(FileDownloadName);
return WriteFileAsync(response);
}
public static void SetFileHeaders(this IHttpResponse response,
string fileName, string contentType, bool?inline)
{
if (contentType.HasBlackSpace())
{
response.SetContentType(contentType);
}
if (inline.HasValue || fileName.HasBlackSpace())
{
var dispositionType = GetDispositiontype();
var dispHeader = new ContentDispositionHeaderValue(dispositionType)
{
FileName = fileName,
};
var dispositionHeaderValue = dispHeader.ToString();
response.SetHeader("Content-Disposition", dispositionHeaderValue);
string GetDispositiontype()
{
if (inline.HasValue)
{
if (!inline.Value)
{
return("attachment");
}
}
return("inline");
}
}
}
/// <inheritdoc />
public override Task ExecuteResultAsync([NotNull] ActionContext context)
{
var response = context.HttpContext.Response;
if (ContentType != null)
{
response.ContentType = ContentType;
}
if (!string.IsNullOrEmpty(FileDownloadName))
{
// From RFC 2183, Sec. 2.3:
// The sender may want to suggest a filename to be used if the entity is
// detached and stored in a separate file. If the receiving MUA writes
// the entity to a file, the suggested filename should be used as a
// basis for the actual filename, where possible.
var cd = new ContentDispositionHeaderValue("attachment");
cd.SetHttpFileName(FileDownloadName);
context.HttpContext.Response.Headers.Set(HeaderNames.ContentDisposition, cd.ToString());
}
// We aren't flowing the cancellation token appropriately, see
// https://github.com/aspnet/Mvc/issues/743 for details.
return WriteFileAsync(response, CancellationToken.None);
}
public ActionResult Get(string filename)
{
FileEntity fileEntity = GetFileInfo(filename);
string fileFullPath = System.IO.Path.Combine(@"C:\", fileEntity.file_path, filename);
if (fileEntity == null)
return NotFound();
FileStream fileStream = System.IO.File.Open(fileFullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
long startByteIndex = 0;
long endByteIndex = fileEntity.file_length-1;
var reqTypedHeader = Request.GetTypedHeaders();
if (reqTypedHeader.Range!=null && reqTypedHeader.Range.Ranges.Count>0)
{
//断点续传处理，多range情景没有处理
startByteIndex = reqTypedHeader.Range.Ranges.First().From ?? 0;
endByteIndex = reqTypedHeader.Range.Ranges.First().To ?? fileEntity.file_length - 1;
Response.StatusCode = StatusCodes.Status206PartialContent;
var contentRange = new ContentRangeHeaderValue(startByteIndex, endByteIndex);
Response.Headers[HeaderNames.ContentRange] = contentRange.ToString();
}
Response.ContentType = fileEntity.file_mimetype;
var contentDisposition = new ContentDispositionHeaderValue("attachment");
contentDisposition.SetHttpFileName(fileEntity.file_name);
Response.Headers[HeaderNames.ContentDisposition] = contentDisposition.ToString();
Response.ContentLength = fileStream.Length;
Response.Headers[HeaderNames.AcceptRanges] = "bytes";
return new FileStreamResult(fileStream,fileEntity.file_mimetype);
}
private static void SetContentDispositionHeader(HttpContext httpContext, string fileName)
{
if (!string.IsNullOrEmpty(fileName))
{
var contentDisposition = new Microsoft.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
contentDisposition.SetHttpFileName(fileName);
httpContext.Response.Headers[HeaderNames.ContentDisposition] = contentDisposition.ToString();
}
}
public static void WriteExcelToResponse(this IWorkbook book, HttpContext httpContext, string templateName)
{
var response = httpContext.Response;
response.ContentType = "application/vnd.ms-excel";
if (!string.IsNullOrEmpty(templateName))
{
var contentDisposition = new Microsoft.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
contentDisposition.SetHttpFileName(templateName);
response.Headers[HeaderNames.ContentDisposition] = contentDisposition.ToString();
}
book.Write(response.Body);
}
public static Task <HttpResponseData> CreateFileContentResponseAsync(this HttpRequestData request, byte[] content, string contentType, string filename)
{
var contentDisposition = new Microsoft.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
contentDisposition.SetHttpFileName(filename);
var httpResponse = request.CreateResponse(HttpStatusCode.OK);
httpResponse.Headers.Add("Content-Type", contentType);
httpResponse.Headers.Add("Content-Length", content.Length.ToString());
httpResponse.Headers.Add(HeaderNames.ContentDisposition, contentDisposition.ToString());
httpResponse.WriteBytes(content);
return(Task.FromResult(httpResponse));
}
/// <summary>
/// Makes the zip of the app to download
/// </summary>
/// <param name="endpoints">The endpoints.</param>
/// <param name="app">App builder.</param>
public static void MapZip(this IEndpointRouteBuilder endpoints, IApplicationBuilder app)
{
//see more at
//https://andrewlock.net/converting-a-terminal-middleware-to-endpoint-routing-in-aspnetcore-3/
endpoints.Map("/zip", async context =>
{
var response = context.Response;
var name = Assembly.GetEntryAssembly().GetName().Name + ".zip";
response.ContentType = "application/octet-stream";
var b = GetZip(app.ApplicationServices.GetService <IWebHostEnvironment>());
//https://github.com/dotnet/aspnetcore/blob/master/src/Mvc/Mvc.Core/src/Infrastructure/FileResultExecutorBase.cs
var contentDisposition = new Microsoft.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
contentDisposition.SetHttpFileName(name);
response.Headers[HeaderNames.ContentDisposition] = contentDisposition.ToString();
await response.Body.WriteAsync(b);
});
}
public async Task <IActionResult> DownloadAttachment(string id)
{
var docField = await _queryService.GetDocumentFieldById(id);
if (!String.IsNullOrEmpty(docField.FilePath))
{
var path = docField.FilePath;
var contentDisposition = new Microsoft.Net.Http.Headers.ContentDispositionHeaderValue("attachment")
{
FileName = docField.Value
};
Response.Headers[HeaderNames.ContentDisposition] = contentDisposition.ToString();
var response = new FileStreamResult(new FileStream(path, FileMode.Open), "application/octet-stream");
return(response);
}
return(Json("File not found"));
}
public void ToString_UseDifferentContentDispositions_AllSerializedCorrectly()
{
var contentDisposition = new ContentDispositionHeaderValue("inline");
Assert.Equal("inline", contentDisposition.ToString());
contentDisposition.Name = "myname";
Assert.Equal("inline; name=myname", contentDisposition.ToString());
contentDisposition.FileName = "my File Name";
Assert.Equal("inline; name=myname; filename=\"my File Name\"", contentDisposition.ToString());
contentDisposition.CreationDate = new DateTimeOffset(new DateTime(2011, 2, 15), new TimeSpan(-8, 0, 0));
Assert.Equal("inline; name=myname; filename=\"my File Name\"; creation-date="
+ "\"Tue, 15 Feb 2011 08:00:00 GMT\"", contentDisposition.ToString());
contentDisposition.Parameters.Add(new NameValueHeaderValue("custom", "\"custom value\""));
Assert.Equal("inline; name=myname; filename=\"my File Name\"; creation-date="
+ "\"Tue, 15 Feb 2011 08:00:00 GMT\"; custom=\"custom value\"", contentDisposition.ToString());
contentDisposition.Name = null;
Assert.Equal("inline; filename=\"my File Name\"; creation-date="
+ "\"Tue, 15 Feb 2011 08:00:00 GMT\"; custom=\"custom value\"", contentDisposition.ToString());
contentDisposition.FileNameStar = "File%Name";
Assert.Equal("inline; filename=\"my File Name\"; creation-date="
+ "\"Tue, 15 Feb 2011 08:00:00 GMT\"; custom=\"custom value\"; filename*=UTF-8\'\'File%25Name",
contentDisposition.ToString());
contentDisposition.FileName = null;
Assert.Equal("inline; creation-date=\"Tue, 15 Feb 2011 08:00:00 GMT\"; custom=\"custom value\";"
+ " filename*=UTF-8\'\'File%25Name", contentDisposition.ToString());
contentDisposition.CreationDate = null;
Assert.Equal("inline; custom=\"custom value\"; filename*=UTF-8\'\'File%25Name",
contentDisposition.ToString());
}
private void SetContentDispositionHeader(ActionContext context, FileResult result)
{
if (!string.IsNullOrEmpty(result.FileDownloadName))
{
var contentDisposition = new Microsoft.Net.Http.Headers.ContentDispositionHeaderValue(ContentDispositionHeader.ToString());
contentDisposition.SetHttpFileName(result.FileDownloadName);
context.HttpContext.Response.Headers[HeaderNames.ContentDisposition] = contentDisposition.ToString();
}
}
public void GetHeaderValue_Produces_Correct_ContentDisposition(string input, string expectedOutput)
{
// Arrange & Act
var cd = new ContentDispositionHeaderValue("attachment");
cd.SetHttpFileName(input);
var actual = cd.ToString();
// Assert
Assert.Equal(expectedOutput, actual);
}
public void ToString_UseDifferentContentDispositions_AllSerializedCorrectly()
{
var contentDisposition = new ContentDispositionHeaderValue("inline");
Assert.Equal("inline", contentDisposition.ToString());
contentDisposition.Name = "myname";
Assert.Equal("inline; name=myname", contentDisposition.ToString());
contentDisposition.FileName = "my File Name";
Assert.Equal("inline; name=myname; filename=\"my File Name\"", contentDisposition.ToString());
contentDisposition.CreationDate = new DateTimeOffset(new DateTime(2011, 2, 15));
Assert.Equal("inline; name=myname; filename=\"my File Name\"; creation-date="
+ "\"Tue, 15 Feb 2011 08:00:00 GMT\"", contentDisposition.ToString());
contentDisposition.Parameters.Add(new NameValueHeaderValue("custom", "\"custom value\""));
Assert.Equal("inline; name=myname; filename=\"my File Name\"; creation-date="
+ "\"Tue, 15 Feb 2011 08:00:00 GMT\"; custom=\"custom value\"", contentDisposition.ToString());
contentDisposition.Name = null;
Assert.Equal("inline; filename=\"my File Name\"; creation-date="
+ "\"Tue, 15 Feb 2011 08:00:00 GMT\"; custom=\"custom value\"", contentDisposition.ToString());
contentDisposition.FileNameStar = "File%Name";
Assert.Equal("inline; filename=\"my File Name\"; creation-date="
+ "\"Tue, 15 Feb 2011 08:00:00 GMT\"; custom=\"custom value\"; filename*=UTF-8\'\'File%25Name",
contentDisposition.ToString());
contentDisposition.FileName = null;
Assert.Equal("inline; creation-date=\"Tue, 15 Feb 2011 08:00:00 GMT\"; custom=\"custom value\";"
+ " filename*=UTF-8\'\'File%25Name", contentDisposition.ToString());
contentDisposition.CreationDate = null;
Assert.Equal("inline; custom=\"custom value\"; filename*=UTF-8\'\'File%25Name",
contentDisposition.ToString());
}