用python实现HTTP协议

1.有时间就来研究研究python中的lib包下面的所有模块代码，写得相当有水平的！
实现一个简单的HTTP服务器
#Copyright Jon Berg , turtlemeat.com

import string,cgi,time
from os import curdir, sep
from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
#import pri

class MyHandler(BaseHTTPRequestHandler):

    def do_GET(self):
        try:
            if self.path.endswith(".html"):
                f = open(curdir + sep + self.path) #self.path has /test.html
#note that this potentially makes every file on your computer readable by the internet

                self.send_response(200)
                self.send_header('Content-type',    'text/html')
                self.end_headers()
                self.wfile.write(f.read())
                f.close()
                return
            if self.path.endswith(".esp"):   #our dynamic content
                self.send_response(200)
                self.send_header('Content-type',    'text/html')
                self.end_headers()
                self.wfile.write("hey, today is the" + str(time.localtime()[7]))
                self.wfile.write(" day in the year " + str(time.localtime()[0]))
                return
               
            return
               
        except IOError:
            self.send_error(404,'File Not Found: %s' % self.path)
    

    def do_POST(self):
        global rootnode
        try:
            ctype, pdict = cgi.parse_header(self.headers.getheader('content-type'))
            if ctype == 'multipart/form-data':
                query=cgi.parse_multipart(self.rfile, pdict)
            self.send_response(301)
           
            self.end_headers()
            upfilecontent = query.get('upfile')
            print "filecontent", upfilecontent[0]
            self.wfile.write("POST OK.

");
            self.wfile.write(upfilecontent[0]);
           
        except :
            pass

def main():
    try:
        server = HTTPServer(('', 80), MyHandler)
        print 'started httpserver...'
        server.serve_forever()
    except KeyboardInterrupt:
        print '^C received, shutting down server'
        server.socket.close()

if __name__ == '__main__':
    main()
处理客户端的GET与POST请求是通过MyHandler方法进行处理的！