Writes a Rack response to your client using the HTTP/1.1 specification. You use it by simply doing:
status, headers, body = rack_app.call(env) http_response_write(socket, status, headers, body)
Most header correctness (including Content-Length and Content-Type) is the job of Rack, with the exception of the “Date” and “Status” header.
Every standard HTTP code mapped to the appropriate message.
# File lib/unicorn/http_response.rb, line 19 def err_response(code, response_start_sent) "#{response_start_sent ? '' : 'HTTP/1.1 '}#{CODES[code]}\r\n\r\n" end
# File lib/unicorn/http_response.rb, line 67 def hijack_prepare(value) value end
writes the rack_response to socket as an HTTP response
# File lib/unicorn/http_response.rb, line 24 def http_response_write(socket, status, headers, body, response_start_sent=false) status = CODES[status.to_i] || status hijack = nil http_response_start = response_start_sent ? '' : 'HTTP/1.1 ' if headers buf = "#{http_response_start}#{status}\r\n" "Date: #{httpdate}\r\n" "Status: #{status}\r\n" "Connection: close\r\n" headers.each do |key, value| case key when %r{\A(?:Date\z|Connection\z)} next when "rack.hijack" # this was an illegal key in Rack < 1.5, so it should be # OK to silently discard it for those older versions hijack = hijack_prepare(value) else if value =~ /\n/ # avoiding blank, key-only cookies with /\n+/ buf << value.split(/\n+/).map! { |v| "#{key}: #{v}\r\n" }.join else buf << "#{key}: #{value}\r\n" end end end socket.write(buf << CRLF) end if hijack body = nil # ensure we do not close body hijack.call(socket) else body.each { |chunk| socket.write(chunk) } end ensure body.respond_to?(:close) and body.close end