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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Net;
namespace System.Web.WebPages
{
public static class ResponseExtensions
{
public static void SetStatus(this HttpResponseBase response, HttpStatusCode httpStatusCode)
{
SetStatus(response, (int)httpStatusCode);
}
public static void SetStatus(this HttpResponseBase response, int httpStatusCode)
{
response.StatusCode = httpStatusCode;
response.End();
}
public static void WriteBinary(this HttpResponseBase response, byte[] data, string mimeType)
{
response.ContentType = mimeType;
WriteBinary(response, data);
}
public static void WriteBinary(this HttpResponseBase response, byte[] data)
{
response.OutputStream.Write(data, 0, data.Length);
}
// REVIEW: See what this is actually calling that's needed
// Configure output caching for the request
[SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "We are not removing optional parameters from helpers")]
public static void OutputCache(this HttpResponseBase response,
int numberOfSeconds,
bool sliding = false,
IEnumerable<string> varyByParams = null,
IEnumerable<string> varyByHeaders = null,
IEnumerable<string> varyByContentEncodings = null,
HttpCacheability cacheability = HttpCacheability.Public)
{
OutputCache(new HttpContextWrapper(HttpContext.Current), response.Cache, numberOfSeconds, sliding, varyByParams, varyByHeaders, varyByContentEncodings,
cacheability);
}
internal static void OutputCache(HttpContextBase httpContext,
HttpCachePolicyBase cache,
int numberOfSeconds,
bool sliding,
IEnumerable<string> varyByParams,
IEnumerable<string> varyByHeaders,
IEnumerable<string> varyByContentEncodings,
HttpCacheability cacheability)
{
cache.SetCacheability(cacheability);
cache.SetExpires(httpContext.Timestamp.AddSeconds(numberOfSeconds));
cache.SetMaxAge(new TimeSpan(0, 0, numberOfSeconds));
cache.SetValidUntilExpires(true);
cache.SetLastModified(httpContext.Timestamp);
cache.SetSlidingExpiration(sliding);
if (varyByParams != null)
{
foreach (var p in varyByParams)
{
cache.VaryByParams[p] = true;
}
}
if (varyByHeaders != null)
{
foreach (var headerName in varyByHeaders)
{
cache.VaryByHeaders[headerName] = true;
}
}
if (varyByContentEncodings != null)
{
foreach (var contentEncoding in varyByContentEncodings)
{
cache.VaryByContentEncodings[contentEncoding] = true;
}
}
}
}
}
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