import socket
import re
import multiprocessing
class WSGIServer(object):
def _init_(self):
# 1。创建套接字
self.tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.tcp_server_socket.setsockopt(socket.SOL_SOCJET, socket.SOCK_REUSEADDR,1)
# 2。绑定
self.tcp_server_socket.bind(('', 7890))
# 3。变为监听套接字(最大链接书128)
self.tcp_server_socket.listen(128)
def service_client(self,new_socket):
# '''为这个客户端返回数据'''
# 1.接收浏览器发送出来的请求，即HTTP请求
# GET/HTTP/1.1
request = new_socket.recv(1024).decode('utf-8')
request_lines = request.splotlines()
print ('')
print ('>>>' *30)
print (request_lines)
# 新客户端链接
# GET/index.html HTTP/1.
# get post put del
ret = ret.match(r'[^/]+（/[^ ]*）)', request_lines[0])
file_name = ''
if ret:
file_name = ret.group(1)
print ('*' *50, file_name)
if file_name == '/':
file_name = '/index.html'
# 2.返回HTTP格式的数据给浏览器
try:
f =open('.../Desktop/项目/项目.html', 'rb')
# f = open('.../Desktop/项目/项目.html' +file_name,'rb')
except:
response ='HTTP/1.1 404 NOT FOUND\r\n'
response +='\r\n'
response +='--FILE NOT FOUND---'
new_socket.send(response.encode('utf-8'))
else:
html_content = f.read()
f.close()
# 2。1 准备发送给浏览器的Header
response ='HTTP/1.1 200 OK\r\n'
response +='\r\n'
# 2.2 准备发送给浏览器的Body
# response += 'hahaha'
# f = open('.../Desktop/项目/项目.html','rb')
# html_content = f.read()
# f.close()
# 将Response Header 发送给浏览器
new_socket.send(response.encode('utf-8'))
# 将Response Body 发送给浏览器
new_socket.send(html_content)
# 关闭客户端套接字
new_socket.close()
def main():
while True:
# 4。等待新客户端的链接
new_socket, client_addr = tcp_server_socket.accept()
# 局部变量
# 5。为这个客户端服务
# service_client()
p = multiprocessing.Process(target=service_client,args=(new_socket,))
p.start()
new_socket.close()
# 6。关闭监听套接字
self.tcp_server_socket.close()
def main():
#用来完成整体的控制，创建一个web 服务器对象。调用run_forver方法运行
wsgi_server = WSGIServer()
wsgi_server.run_forver()
if __name__ =='__main__':
main()
User-Agent含义
User-Agent会告诉网站服务器，访问者是通过什么工具来请求的，如果是爬虫请求，一般会拒绝，如果是用户浏览器，就会应答。