Search code examples
ruby-on-railsruby-on-rails-4sslproxynet-http

How do I set use_ssl param when running a web request through a proxy?


I’m using Rails 4.2.7. How do I set the “use_ssl” parameter when sending a web request through a proxy? I have this

    res1 = Net::HTTP.SOCKSProxy(TCPSocket::socks_server, TCPSocket::socks_port).start(uri.host, uri.port) do |http|
      http.use_ssl = (uri.scheme == "https")
      resp = http.get(uri, initheader = headers)
      status = resp.code.to_i
      if status == 302 || status == 301
        redirect = resp['location']
      end
      content = resp.body
      content_type = resp['content-type']
      content_encoding = resp['content-encoding']
    end

But when I get to this line — “http.use_ssl = (uri.scheme == "https”)” I get the exception

IOError: use_ssl value changed, but session already started
    from /Users/davea/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http.rb:758:in `use_ssl='
    from /Users/davea/Documents/workspace/myproject/app/helpers/webpage_helper.rb:96:in `block in get_content'
    from /Users/davea/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http.rb:853:in `start'
    from /Users/davea/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http.rb:584:in `start'
    from /Users/davea/Documents/workspace/myproject/app/helpers/webpage_helper.rb:94:in `get_content'
    from /Users/davea/Documents/workspace/myproject/app/helpers/webpage_helper.rb:33:in `get_url'
    from (irb):1
    from /Users/davea/.rvm/gems/ruby-2.3.0/gems/railties-4.2.7.1/lib/rails/commands/console.rb:110:in `start'
    from /Users/davea/.rvm/gems/ruby-2.3.0/gems/railties-4.2.7.1/lib/rails/commands/console.rb:9:in `start'
    from /Users/davea/.rvm/gems/ruby-2.3.0/gems/railties-4.2.7.1/lib/rails/commands/commands_tasks.rb:68:in `console'
    from /Users/davea/.rvm/gems/ruby-2.3.0/gems/railties-4.2.7.1/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
    from /Users/davea/.rvm/gems/ruby-2.3.0/gems/railties-4.2.7.1/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

Solution

  • according to this test sample, line 109: https://github.com/astro/socksify-ruby/blob/master/test/tc_socksify.rb#L109

    I'd try something like this:

    res1 = Net::HTTP.SOCKSProxy(TCPSocket::socks_server, TCPSocket::socks_port).start(
      uri.host, uri.port, :use_ssl => (uri.scheme == "https")) do |http|
    
      resp = http.get(uri, initheader = headers)
      status = resp.code.to_i
      if status == 302 || status == 301
        redirect = resp['location']
      end
      content = resp.body
      content_type = resp['content-type']
      content_encoding = resp['content-encoding']
    end
    

    if you don't have a valid SSL cert, you can disable SSL validation like this (not recommended for production!)

    https://github.com/astro/socksify-ruby/blob/master/test/tc_socksify.rb#L110