python实现SimpleHTTPServer的POST方法

简易HTTP服务器搭建与URL解码

最新推荐文章于 2024-02-09 08:00:00 发布

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本文介绍了一个简易HTTP服务器的实现方法，通过Python代码实现了GET和POST请求的处理，并详细展示了如何对URL进行解码以获取表单数据。

代码如下：

import SimpleHTTPServer
import SocketServer
import re

def htc(m):
    return chr(int(m.group(1),16))

def urldecode(url):
    rex=re.compile('%([0-9a-hA-H][0-9a-hA-H])',re.M)
    return rex.sub(htc,url)

class SETHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
    def createHTML(self):
        html = file("index.html", "r")
        for line in html:
            self.wfile.write(line)
            
    def do_GET(self):
        print "GET"
        print self.headers;
        self.createHTML()
        
    def do_POST(self):
        print "POST"
        print self.headers;
        length = int(self.headers.getheader('content-length'))
        qs = self.rfile.read(length)
        url=urldecode(qs)
        print "url="
        print url
        self.createHTML()
        
Handler = SETHandler
PORT = 8000
httpd = SocketServer.TCPServer(("", PORT), Handler)
print "serving at port", PORT
httpd.serve_forever()

测试用的index.html页面如下：

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
	<form action="http://127.0.0.1:8000/" method="post">
		username:<input type="text" name="username"><br>
		password:<input type="password" name="password"><br> 
		<input type="submit" value="login">
	</form>
</body>
</html>

在浏览器里打开http://127.0.0.1:8000/，输出如下：

GET
Accept: */*
Accept-Language: zh-cn
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Accept-Encoding: gzip, deflate
Host: 127.0.0.1:8000
Connection: Keep-Alive

GET
Accept: */*
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Host: 127.0.0.1:8000
Connection: Keep-Alive

点击"login"后，输入如下：

POST
Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, */*
Referer: http://127.0.0.1:8000/
Accept-Language: zh-cn
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
Host: 127.0.0.1:8000
Content-Length: 27
Connection: Keep-Alive
Cache-Control: no-cache

url=
username=yang&password=pass