C# ASP.NET Web API 2.2应用程序赢得'；无法激活POST请求 破败
注意：我的本地服务器是IISExpress。我还没有尝试将我的应用程序部署到IIS，因为我无法在本地生成所需的行为 我正在尝试将一个已从客户端压缩到Web API的主体发布到我的Web API中。C# ASP.NET Web API 2.2应用程序赢得'；无法激活POST请求 破败,c#,asp.net,iis,gzip,C#,Asp.net,Iis,Gzip,注意：我的本地服务器是IISExpress。我还没有尝试将我的应用程序部署到IIS，因为我无法在本地生成所需的行为 我正在尝试将一个已从客户端压缩到Web API的主体发布到我的Web API中。 我可以通过简单地与IIS通信得到gzip响应myAccept Encoding:gzip，但发送gzip请求体的问题要大得多 我尝试通信Content Encoding:gzip，并将gzip响应复制粘贴到我的请求主体中（这显然不起作用，因为我在剪贴板中移动二进制文件时通过Unicode传递了它）
我可以通过简单地与IIS通信得到gzip响应my
Accept Encoding:gzipContent Encoding:gzip内容类型是application/json
。当我发送我的GZip正文（下面的细节第2节）时，我收到了一个关于头中GZip幻数的错误。这是将[copy+pasted]内容从一个Fiddler响应复制到后续的Fiddler请求中，因此二进制内容通过剪贴板传递。在将其复制到剪贴板时，如果将其转换为Unicode，则可能会失败。最相关的一点是，它会生成一个显式的服务器错误；服务器通过响应一个内部服务器错误来确认它
最后注意：使用DelegatingHandler和对Utilities.gzip compress（）
的客户端调用，服务器永远不会确认收到请求。如果我注释掉压缩行，服务器将确认该请求
这是什么原因造成的？
这是如何纠正的？
细节
这就是让我来到这里的原因：
1] 我可以简单地请求接受编码：gzip
，IIS通过gzip响应来满足我的请求。在对
进行任何配置更改或添加DelegatingHandler之前，我首先尝试根据不同的请求将此gzip内容发布回服务器，同时与content Encoding:gzip
进行通信，我的应用程序激活了相应的控制器，并将我的请求路由到相应的控制器，但主体不会反序列化，表面上是因为它试图将压缩的二进制数据视为明文Content-Type:application/json
。我的客户（Fiddler）收到一个400错误请求
注意，为了将gzip响应链接到测试请求的主体，我通过剪贴板传递了二进制数据。我知道这不会“只起作用”（通过剪贴板通过UTF-8传输二进制数据-我认为..也许UTF-16…不太重要），但我想看看我实际会得到什么行为。重要的是，IIS和ASP.NET似乎完全忽略了我的内容编码
标题
2] 然后，我在applicationHost.config中修改了httpCompression
，以包括application/json
和application/json；charset=utf8
在我的支持动态压缩的类型列表中
<httpCompression directory="%TEMP%\iisexpress\IIS Temporary Compressed Files">
<scheme name="gzip" dll="%IIS_BIN%\gzip.dll" />
<dynamicTypes>
<add mimeType="text/*" enabled="true" />
<add mimeType="message/*" enabled="true" />
<add mimeType="application/javascript" enabled="true" />
<add mimeType="application/atom+xml" enabled="true" />
<add mimeType="application/xaml+xml" enabled="true" />
<add mimeType="application/json" enabled="true" />
<add mimeType="application/json; charset=utf-8" enabled="true" />
<add mimeType="*/*" enabled="false" />
</dynamicTypes>
<staticTypes>
<add mimeType="text/*" enabled="true" />
<add mimeType="message/*" enabled="true" />
<add mimeType="image/svg+xml" enabled="true" />
<add mimeType="application/javascript" enabled="true" />
<add mimeType="application/atom+xml" enabled="true" />
<add mimeType="application/xaml+xml" enabled="true" />
<add mimeType="*/*" enabled="false" />
</staticTypes>
</httpCompression>
//+================================================================================+
//|[KAB] Trying to have Fiddler compress the clear Body prior to request. |
//| Rationale: POSTing a gzipped response as a Request body is generating |
//| an internal server error |
//| +--------------------------------------------------------------------------+ |
//| |The magic number in GZip header is not correct. Make sure you are passing | |
//| |in a GZip stream. | |
//| +--------------------------------------------------------------------------+ |
//| Goal is to see if passing through the clipboard is what is generating this |
//+================================================================================+
if(oSession.requestBodyBytes != null && (oSession.oRequest.headers.Exists("Client.Request-Encoding")))
{
if(oSession.oRequest["Client.Request-Encoding"] == "gzip")
{
//+=================================================+
//|Commenting these 2 lines prevents the Compression
//|from actually occurring. When I disable compression
//|of requestBodyBytes, the request goes out and is
//|serviced as an uncompressed body by my application
//|-------------------------------------------------
oSession.requestBodyBytes = Utilities.GzipCompress(oSession.requestBodyBytes);
oSession["Content-Length"] = oSession.requestBodyBytes.Length.ToString();
//|-------------------------------------------------
//+=================================================+
oSession["ui-color"] = "green";
oSession["ui-bold"] = "true";
}else{
oSession["ui-color"] = "crimson";
oSession["ui-italics"] = "true";
oSession.oRequest["Client.Request-Encoding.Error"] = "Rule not processed. gzip is the only supported Request-Encoding value";
}
}
3] 我在我的合成空间中引入了一个DelegatingHandler，它只在POST请求时触发
CompressedRequestHandler.cs
我还在Fiddler中引入了一个CustomRule，用于在BeforeRequest上执行客户端压缩，有两种排列（用于测试规则本身）
1] 实际执行身体的GZip压缩
2] 激发规则，但不执行压缩
<httpCompression directory="%TEMP%\iisexpress\IIS Temporary Compressed Files">
<scheme name="gzip" dll="%IIS_BIN%\gzip.dll" />
<dynamicTypes>
<add mimeType="text/*" enabled="true" />
<add mimeType="message/*" enabled="true" />
<add mimeType="application/javascript" enabled="true" />
<add mimeType="application/atom+xml" enabled="true" />
<add mimeType="application/xaml+xml" enabled="true" />
<add mimeType="application/json" enabled="true" />
<add mimeType="application/json; charset=utf-8" enabled="true" />
<add mimeType="*/*" enabled="false" />
</dynamicTypes>
<staticTypes>
<add mimeType="text/*" enabled="true" />
<add mimeType="message/*" enabled="true" />
<add mimeType="image/svg+xml" enabled="true" />
<add mimeType="application/javascript" enabled="true" />
<add mimeType="application/atom+xml" enabled="true" />
<add mimeType="application/xaml+xml" enabled="true" />
<add mimeType="*/*" enabled="false" />
</staticTypes>
</httpCompression>
//+================================================================================+
//|[KAB] Trying to have Fiddler compress the clear Body prior to request. |
//| Rationale: POSTing a gzipped response as a Request body is generating |
//| an internal server error |
//| +--------------------------------------------------------------------------+ |
//| |The magic number in GZip header is not correct. Make sure you are passing | |
//| |in a GZip stream. | |
//| +--------------------------------------------------------------------------+ |
//| Goal is to see if passing through the clipboard is what is generating this |
//+================================================================================+
if(oSession.requestBodyBytes != null && (oSession.oRequest.headers.Exists("Client.Request-Encoding")))
{
if(oSession.oRequest["Client.Request-Encoding"] == "gzip")
{
//+=================================================+
//|Commenting these 2 lines prevents the Compression
//|from actually occurring. When I disable compression
//|of requestBodyBytes, the request goes out and is
//|serviced as an uncompressed body by my application
//|-------------------------------------------------
oSession.requestBodyBytes = Utilities.GzipCompress(oSession.requestBodyBytes);
oSession["Content-Length"] = oSession.requestBodyBytes.Length.ToString();
//|-------------------------------------------------
//+=================================================+
oSession["ui-color"] = "green";
oSession["ui-bold"] = "true";
}else{
oSession["ui-color"] = "crimson";
oSession["ui-italics"] = "true";
oSession.oRequest["Client.Request-Encoding.Error"] = "Rule not processed. gzip is the only supported Request-Encoding value";
}
}
这会让你了解运动部件的速度
当我注释掉执行对gzip压缩（oSession.requestBodyBytes）
的调用的规则行时，我的应用程序被唤醒，我的DelegatingHandler被触发，一切都像请求未压缩一样处理。只要这些行被启用，我的请求就会被GZip压缩（通过Composer确认），但我的应用程序从未收到请求。委托人从不开枪
你能展示Api控制器的POST方法吗？这听起来像是压缩使请求正文看起来像是控制器不希望看到的东西。@David我可以显示POST方法，但在HttpRouteDispatcher和ASP.NET未根据正文内容路由POST请求之前，DelegatingHandler会启动，因此我认为这与我的问题无关。如果-在阅读之后-你仍然有一个特定的好奇心，你觉得可能是相关的，请让我知道，我会编辑更新
//+================================================================================+
//|[KAB] Trying to have Fiddler compress the clear Body prior to request. |
//| Rationale: POSTing a gzipped response as a Request body is generating |
//| an internal server error |
//| +--------------------------------------------------------------------------+ |
//| |The magic number in GZip header is not correct. Make sure you are passing | |
//| |in a GZip stream. | |
//| +--------------------------------------------------------------------------+ |
//| Goal is to see if passing through the clipboard is what is generating this |
//+================================================================================+
if(oSession.requestBodyBytes != null && (oSession.oRequest.headers.Exists("Client.Request-Encoding")))
{
if(oSession.oRequest["Client.Request-Encoding"] == "gzip")
{
//+=================================================+
//|Commenting these 2 lines prevents the Compression
//|from actually occurring. When I disable compression
//|of requestBodyBytes, the request goes out and is
//|serviced as an uncompressed body by my application
//|-------------------------------------------------
oSession.requestBodyBytes = Utilities.GzipCompress(oSession.requestBodyBytes);
oSession["Content-Length"] = oSession.requestBodyBytes.Length.ToString();
//|-------------------------------------------------
//+=================================================+
oSession["ui-color"] = "green";
oSession["ui-bold"] = "true";
}else{
oSession["ui-color"] = "crimson";
oSession["ui-italics"] = "true";
oSession.oRequest["Client.Request-Encoding.Error"] = "Rule not processed. gzip is the only supported Request-Encoding value";
}
}