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FileContentResult.cs
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FileContentResult.cs
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// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc.Infrastructure;
using Microsoft.AspNetCore.Mvc.Internal;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Net.Http.Headers;
namespace Microsoft.AspNetCore.Mvc
{
/// <summary>
/// Represents an <see cref="ActionResult"/> that when executed will
/// write a binary file to the response.
/// </summary>
public class FileContentResult : FileResult
{
private byte[] _fileContents;
/// <summary>
/// Creates a new <see cref="FileContentResult"/> instance with
/// the provided <paramref name="fileContents"/> and the
/// provided <paramref name="contentType"/>.
/// </summary>
/// <param name="fileContents">The bytes that represent the file contents.</param>
/// <param name="contentType">The Content-Type header of the response.</param>
public FileContentResult(byte[] fileContents, string contentType)
: this(fileContents, MediaTypeHeaderValue.Parse(contentType))
{
if (fileContents == null)
{
throw new ArgumentNullException(nameof(fileContents));
}
}
/// <summary>
/// Creates a new <see cref="FileContentResult"/> instance with
/// the provided <paramref name="fileContents"/> and the
/// provided <paramref name="contentType"/>.
/// </summary>
/// <param name="fileContents">The bytes that represent the file contents.</param>
/// <param name="contentType">The Content-Type header of the response.</param>
public FileContentResult(byte[] fileContents, MediaTypeHeaderValue contentType)
: base(contentType?.ToString())
{
if (fileContents == null)
{
throw new ArgumentNullException(nameof(fileContents));
}
FileContents = fileContents;
}
/// <summary>
/// Gets or sets the file contents.
/// </summary>
public byte[] FileContents
{
get => _fileContents;
set
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
_fileContents = value;
}
}
/// <inheritdoc />
public override Task ExecuteResultAsync(ActionContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var executor = context.HttpContext.RequestServices.GetRequiredService<IActionResultExecutor<FileContentResult>>();
return executor.ExecuteAsync(context, this);
}
}
}