停止ruby http请求修改标题名称 [英] stop ruby http request modifying header name

问题描述

我正在ruby中做一个http请求：

I'm doing an http request in ruby:

  http = Net::HTTP.new(uri.host, uri.port)
  req = Net::HTTP::Post.new(uri.path)
  req.body = payload
  req['customeheader'] = 'xxxxxxxxx'
  http.set_debug_output $stdout

我已打开调试，当请求发布时我可以看到标题发布为：

I have debug switched on and when the request is posted I can see the header is being posted as:

  Customheader: xxxxxxxxx

无论如何要阻止这一点，我发布的第三方服务器发出错误是因为标题名称不正确 - 它期待 customheader ：

Is there anyway to stop this, the third party server I'm posting to is giving an error because the header name isn't correct - it's expecting customheader:

推荐答案

根据HTTP规范（RFC 2616），标题字段名称不区分大小写。因此，第三方服务器的实现方式已经破裂。

According to the HTTP spec (RFC 2616), header field names are case-insensitive. So the third-party server has a broken implementation.

如果你真的需要，你可以通过猴子补丁Net :: HTTP保留大小写，因为它会使字段下降存储它们时的名称，然后用初始大写字母写它们。

If you really needed to, you could monkey-patch Net::HTTP to preserve case, because it downcases the field names when it stores them and then writes them with initial caps.

这是你使用的存储方法（ Net :: HTTPHeader＃[] = ）：

Here's the storage method you used (Net::HTTPHeader#[]=):

# File net/http.rb, line 1160
    def []=(key, val)
      unless val
        @header.delete key.downcase
        return val
      end
      @header[key.downcase] = [val]
    end

这里是编写标题的地方（ Net :: HTTPGenericRequest＃write_header ）：

And here is where it writes the header (Net::HTTPGenericRequest#write_header):

# File lib/net/http.rb, line 2071
    def write_header(sock, ver, path)
      buf = "#{@method} #{path} HTTP/#{ver}\r\n"
      each_capitalized do |k,v|
        buf << "#{k}: #{v}\r\n"
      end
      buf << "\r\n"
      sock.write buf
    end

这些可能是您需要覆盖的唯一方法，但我不是100％肯定。

Those are likely the only methods you'd need to override, but I'm not 100% certain.

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