来自HTML表单的空POST请求(Python)

时间:2017-05-15 08:50:30

标签: python html forms post basehttpserver

我正在尝试使用BaseHTTPRequestHandler模​​块在Python中接收POST请求。我写了一个简单的HTML表单:

  <html>
    <head>
      <meta charset='UTF-8'>
    </head>
    <body>
      <form action="http://localhost:8080/" method='post'>
        <strong>Access point</strong><br>
        <label for='ssid'>SSID: </label>
          <input type='text' id=ssid><br>
        <label for='passphrase'>Passphrase: </label>
          <input type='password' id=passphrase><br>
        <br>
        <strong>Calendar</strong><br>
        <label for='id'>ID: </label>
          <input type='text' id=calid><br>
        <br>
        <input type='submit'>
        <input type='reset'>
      </form>
    </body>
  <html>

和最小的申请:

# -*- coding: utf-8 -*-

from http.server import BaseHTTPRequestHandler, HTTPServer
import socketserver
import socket
import sys

class ConfigHTTPRequestHandler(BaseHTTPRequestHandler):
    def _set_headers(self):
        self.send_response(200)
        self.send_header('Content-type', 'text/html')
        self.end_headers()

    def do_GET(self):
        self._set_headers()
        with open("index.html", "rb") as f:
            self.wfile.write(f.read())

    def do_HEAD(self):
        self._set_headers()

    def do_POST(self):
        print(self.headers)

        content_length = int(self.headers.get('Content-Length', 0))
        config_string = self.rfile.read(content_length).decode("UTF-8")
        print("Content length: ", content_length)
        print("Config string: [ ", config_string, " ]")

        self._set_headers()
        return

ConfigHTTPRequestHandler.protocol_version = "HTTP/1.0"
httpd = HTTPServer(("127.0.0.1", 8080), ConfigHTTPRequestHandler)

sa = httpd.socket.getsockname()
print("Serving HTTP on", sa[0], "port", sa[1], "...")
try:
    httpd.serve_forever()
except KeyboardInterrupt:
    print("\nKeyboard interrupt received, exiting.")
    httpd.server_close()
    sys.exit(0)

问题是每个POST请求都是空的。我得到content_length = 0。

2 个答案:

答案 0 :(得分:2)

请为表单元素提供名称属性,看看它是否有效。

<html>
    <head>
        <meta charset='UTF-8'>
    </head>
    <body>
        <form action="http://localhost:8080/" method='post'>
            <strong>Access point</strong><br>
            <label for='ssid'>SSID: </label>
            <input type='text' id="ssid" name="ssid"><br>
            <label for='passphrase'>Passphrase: </label>
            <input type='password' id="passphrase" name="passphrase"><br>
            <br>
            <strong>Calendar</strong><br>
            <label for='id'>ID: </label>
            <input type='text' id="calid" name="calid"><br>
            <br>
            <input type='submit'>
            <input type='reset'>
        </form>
    </body>
<html>

答案 1 :(得分:0)

我想详细说明user7883492的答案。

根据this protocol description,仅提交表单的“成功控件”。
根据{{​​3}},成功的控件需要具有名称属性。

您的控件满足所有被视为“成功控件”的要求,但名称属性要求除外。
这就是他们未提交的原因。 添加名称属性后,它们成为“成功的控件”,并被提交。