如何从简单的 Ruby 服务器捕获 POST 数据

Question

我有一个基本的 Ruby 服务器，我想侦听特定端口，读取传入的 POST 数据并执行等等...

我有这个：

require 'socket'               # Get sockets from stdlib

server = TCPServer.open(2000)  # Socket to listen on port 2000
loop {                         # Servers run forever
  client = server.accept       # Wait for a client to connect
  client.puts(Time.now.ctime)  # Send the time to the client
  client.puts "Closing the connection. Bye!"
  client.close                 # Disconnect from the client
}

我将如何捕获 POST 数据？

谢谢你的帮助。

Answer 1

可以在不向服务器添加太多内容的情况下执行此操作：

require 'socket'               # Get sockets from stdlib

server = TCPServer.open(2000)  # Socket to listen on port 2000
loop {                         # Servers run forever
  client = server.accept       # Wait for a client to connect
  method, path = client.gets.split                    # In this case, method = "POST" and path = "/"
  headers = {}
  while line = client.gets.split(' ', 2)              # Collect HTTP headers
    break if line[0] == ""                            # Blank line means no more headers
    headers[line[0].chop] = line[1].strip             # Hash headers by type
  end
  data = client.read(headers["Content-Length"].to_i)  # Read the POST data as specified in the header

  puts data                                           # Do what you want with the POST data

  client.puts(Time.now.ctime)  # Send the time to the client
  client.puts "Closing the connection. Bye!"
  client.close                 # Disconnect from the client
}

Answer 2

对于非常简单的应用程序，您可能想使用Sinatra编写一些尽可能基本的内容。

post('/') do 
  # Do stuff with post data stored in params
  puts params[:example]
end

然后，您可以将其粘贴到 Rack 脚本中，config.ru并使用任何兼容 Rack 的服务器轻松托管它。