Question

I need to post some data in Rails to an external ASP.

My curl command is working:

printf 'foo=bar\r\nparameter1=4711\r\nparameter2=4712' | curl --data-binary @- http://example.com/request.asp

How do I do this with net/http?

Its important to keep the ‘\r\n’ between the parameters.

My coding so far:

uri = URI.parse('http://example.com/request.asp')

http = Net::HTTP.new(uri.host, uri.port)

req = Net::HTTP::Post.new(url.request_uri)
req.set_form_data(params)
response = http.request(req)

How do I set up params?

I tried something like this:

params = {
  'foo' => 'bar\r\n',
  'parameter1' => '4711\r\n',
  'parameter2' => '4712'
}

But its not working. I need to encode it but how?

I tried it with the URL encoded version of ‘\r\n’: %0D%0A but it didn’t work. Is there any way to send it as binary like curl does?

Thanks.

Edit: Thanks to your answers I found the solution:

uri = URI.parse('http://example.com/request.asp')

http = Net::HTTP.new(uri.host, uri.port)

req = Net::HTTP::Post.new(url.request_uri)
req.body = "foo=bar\r\nparameter1=4711\r\nparameter2=4712"
response = http.request(req)

set_form_data a) encodes and b) adds “&” both nothing I needed. Setting the body directly was the solution.

Answer 1

If it’s ok that \r\n and all but the first = gets URL encoded in the POST data you could try:

params = {
   'foo' => 'bar\r\nparameter1=4711\r\nparameter2=4712'
}

What is the main problem, get rid of the pair separator & or that \r\n should be sent unencoded? or both?