当下游服务返回"text/plain"类型时导致"response.Body"中变得异常得长,这正常吗?

[17371]

我期望能将响应内容进行存储,但意外发现响应内容无法解析,他将显示乱码; 调试发现response.ContentType:application/json 没问题,当response.ContentType为text/plain时出现问题

###下面是我的描述
例如下游服务将返回

ServerA Program.cs:

app.UseMiddleware<MyCustomMiddleware>();
...
app.MapGet("/test", () =>  " 运行正常");



OcelotGateway Program.cs:

app.UseMiddleware<MyCustomMiddleware>();
app.UseOcelot().Wait();

MyCustomMiddleware

 Stream originalResponseStream = response.Body;
 using MemoryStream replaceResponseStream = new MemoryStream();
 response.Body = replaceResponseStream;
 await next(context); 
 res_content_type = response.ContentType ?? "";
 Console.WriteLine("响应类型:" + res_content_type); 
 Console.WriteLine("响应长度:" + replaceResponseStream.Length);
 replaceResponseStream.Position = 0;
 await replaceResponseStream.CopyToAsync(originalResponseStream);
 response.Body = originalResponseStream;

ServerA
响应类型:text/plain; charset=utf-8
响应长度:2

OcelotGateway
响应类型:text/plain; charset=utf-8
响应长度:121


replaceResponseStream从原来得2变成了121 !!!我不是很理解多出得部分是什么




[raman-m]

@ggnaegi What do you think?
It will be a surprise for me if gateway can't handle text/plain ContentType header requests correctly.
Please find some time to answer to the author.

[raman-m]

@ggnaegi Pay your attention to this Should_add_default_content_type_header test please!

Ocelot/test/Ocelot.AcceptanceTests/ContentTests.cs

Line 73 in 59b63ea

.And(x => ThenTheContentTypeIsIs("text/plain; charset=utf-8"))

[17371]

Sorry for taking up your time!
I think the content of response.Body was changed in app.UseOcelot(), but I don’t know where the change was made. What’s strange to me is that text/plain was changed separately, but application/json was not affected. . Maybe I should read out the bytes and compare.

[raman-m]

First

From issue title:

• There was a problem when ContentType was text/plain
• I accidentally found that the content of the response could not be parsed, and it displays garbled characters;

So, it could be text stream encoding issue...
What's the value of Content-Encoding header?
What's the value of Accept-Encoding header?
If you have something different than utf-8 then you could see incorrectly displayed text!
See more in #1072 and #1900

Second

ServerA Program.cs:

app.UseMiddleware<MyCustomMiddleware>();
...
app.MapGet("/test", () =>  " 运行正常");



OcelotGateway Program.cs:

app.UseMiddleware<MyCustomMiddleware>(); // Please don't do it for Ocelot pipeline! You must be careful!!!
app.UseOcelot().Wait();

You did some coding research and you used custom middleware which is not official Ocelot's one. So you've changed Ocelot pipeline ❗
We don't accept issues of changed Ocelot pipeline! And I don't see any benefits to continue this discussion!
Going to close the discussion...

[17371]

OK, thanks

[17371]

OK, thanks