Question

我正在编写一个简单的Sinatra应用程序，并且如果用户发布了具有特定数据的请求，我想返回错误“453”（自定义错误代码），其中包含消息CLIENT_ERROR或类似内容。

问题是：查看Sinatra文档并进行一些测试我找不到设置响应错误消息的方法，只有响应状态。

所以，如果设置了Sinatra响应

get '/' do
   response.status = 453
end

我得到错误代码：

curl -v localhost:4567

* About to connect() to localhost port 4567 (#0)
*   Trying 127.0.0.1... connected
> GET / HTTP/1.1
> User-Agent: curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4     libidn/1.23 librtmp/2.3
> Host: localhost:4567
> Accept: */*
> 
< HTTP/1.1 453 
< X-Frame-Options: sameorigin
< X-XSS-Protection: 1; mode=block
< Content-Type: text/html;charset=utf-8
< Content-Length: 0
< Connection: keep-alive
< Server: thin 1.3.1 codename Triple Espresso
< 
* Connection #0 to host localhost left intact
* Closing connection #0

但我想拥有的是：

< HTTP/1.1 453 CLIENT_ERROR

和我一样

< HTTP/1.1 200 OK

当一切按照计划进行时。

无论如何使用Sinatra / Rack进行此操作？

Answer 1

状态消息由您使用的服务器生成，例如简化消息在Thin::HTTP_STATUS_CODES中，响应行在Thin::Response中生成，在WEBrick中，它们在WEBrick::HHTPStatus::StatusMessage中，响应在WEBrick::HTTPResponse中生成。

如果您知道正在使用的服务器，则可以将错误添加到相应的哈希值。

使用Thin：

require 'thin'
Thin::HTTP_STATUS_CODES[453] = "Client Error"

和输出：

$ curl -v localhost:4567
* About to connect() to localhost port 4567 (#0)
*   Trying 127.0.0.1... connected
* Connected to localhost (127.0.0.1) port 4567 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.19.7 (universal-apple-darwin10.0) libcurl/7.19.7 OpenSSL/0.9.8r zlib/1.2.3
> Host: localhost:4567
> Accept: */*
> 
< HTTP/1.1 453 Client Error
< X-Frame-Options: sameorigin
< X-XSS-Protection: 1; mode=block
< Content-Type: text/html;charset=utf-8
< Content-Length: 0
< Connection: keep-alive
< Server: thin 1.4.1 codename Chromeo
< 
* Connection #0 to host localhost left intact
* Closing connection #0

和WEBrick：

require 'webrick'
WEBrick::HTTPStatus::StatusMessage[453] = "Client Error"

给出输出：

$ curl -v localhost:4567
* About to connect() to localhost port 4567 (#0)
*   Trying 127.0.0.1... connected
* Connected to localhost (127.0.0.1) port 4567 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.19.7 (universal-apple-darwin10.0) libcurl/7.19.7 OpenSSL/0.9.8r zlib/1.2.3
> Host: localhost:4567
> Accept: */*
> 
localhost - - [13/Aug/2012:01:41:48 BST] "GET / HTTP/1.1" 453 0
- -> /
< HTTP/1.1 453 Client Error 
< X-Frame-Options: sameorigin
< X-Xss-Protection: 1; mode=block
< Content-Type: text/html;charset=utf-8
< Content-Length: 0
< Server: WEBrick/1.3.1 (Ruby/1.9.3/2012-04-20)
< Date: Mon, 13 Aug 2012 00:41:48 GMT
< Connection: Keep-Alive
< 
* Connection #0 to host localhost left intact
* Closing connection #0

Answer 2

我建议不要使用自定义HTTP状态代码。如果您认为自己有一些普遍用途，请考虑编写Internet草案并完成IETF规范流程。

使用Sinatra更改HTTP状态消息

2 个答案: