Ruby-on-rails 向 rails 中的请求添加标头
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Add headers to a request in rails
提问by Tyler DeWitt
I'm using Rails 3.2.1 to make an HTTP Post.
我正在使用 Rails 3.2.1 制作 HTTP Post。
I need to add X-FORWARDEDFOR to the header. How do I do that in Rails?
我需要将X-FORWARDEDFOR添加到标题中。我如何在 Rails 中做到这一点？
Code:
代码：
post_data = {
"username" => tabuser
}
response = Net::HTTP.post_form(URI.parse("http://<my php file>"), post_data)
采纳答案by house9
It can be set on the request object:
它可以在请求对象上设置：
request = Post.new(url)
request.form_data = params
request['X-Forwarded-For'] = '203.0.113.195'
request.start(url.hostname, url.port,
:use_ssl => url.scheme == 'https' ) {|http|
http.request(request) }
See these Net::HTTP examples:
请参阅这些 Net::HTTP 示例：
https://github.com/augustl/net-http-cheat-sheet/blob/master/headers.rb
https://github.com/augustl/net-http-cheat-sheet/blob/master/headers.rb
回答by equivalent8
I find this more readable
我觉得这更具可读性
require "net/http"
require "uri"
url = URI.parse("http://www.whatismyip.com/automation/n09230945.asp")
req = Net::HTTP::Get.new(url.path)
req.add_field("X-Forwarded-For", "0.0.0.0")
req.add_field("Accept", "*/*")
res = Net::HTTP.new(url.host, url.port).start do |http|
http.request(req)
end
puts res.body
stolen from http://www.dzone.com/snippets/send-custom-headers-rub
盗自http://www.dzone.com/snippets/send-custom-headers-rub
HOWEVER !!
然而 ！！
if you want to send 'Accept' header (Accept: application/json) to Rails application, you cannot do:
如果要将“接受”标头 ( Accept: application/json) 发送到 Rails 应用程序，则不能执行以下操作：
req.add_field("Accept", "application/json")
req.add_field("Accept", "application/json")
but do:
但做：
req['Accept'] = 'application/json'
req['Accept'] = 'application/json'
The reason for this that Rails ignores the Accept header when it contains “,/” or “/,” and returns HTML (which add_fieldadds). This is due to really old browsers sending incorrect "Accept" headers.
这样做的原因是 Rails 在包含“,/”或“/,”时忽略 Accept 标头并返回 HTML（add_field添加）。这是由于非常旧的浏览器发送了不正确的“接受”标头。
回答by tommybernaciak
Both answers are ok, but I would add one important thing. If you are using https you must add line that you use ssl:
两个答案都可以，但我要补充一件重要的事情。如果您使用 https，则必须添加使用 ssl 的行：
url = URI.parse('https://someurl.com')
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
req = Net::HTTP::Get.new(url.request_uri)
req["header_name"] = header
response = http.request(req)
Without this use_ssl you will get 'EOFError (end of file reached)'.
如果没有这个 use_ssl，你会得到“EOFError（到达文件结尾）”。
回答by Tom Rossi
The original question was for an http postwhich is what I was looking for. I'm going to include this solution for others who may be looking:
最初的问题是针对我正在寻找的http 帖子。我将为可能正在寻找的其他人提供此解决方案：
require 'net/http'
uri = URI.parse("http://<my php file>")
header = {'X-Forwarded-For': '0.0.0.0'}
# Create the HTTP objects
http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Post.new(uri.request_uri, header)
# Send the request
response = http.request(request)
