web 服务器和框架分离
首先实现的是 Web服务器
import socket
import multiprocessing
import re
import Frame
class WISG_Server(object):
def __init__(self):
self.tcp_server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
self.tcp_server_socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.tcp_server_socket.bind(("",8080))
self.tcp_server_socket.listen(128)
def run_forever(self):
while True:
new_client_socket,new_client_addr = self.tcp_server_socket.accept()
p = multiprocessing.Process(target = self.serve_client_socket,args =(new_client_socket,))
p.start()
new_client_socket.close()
self.tcp_server_socket.close()
def serve_client_socket(self,new_client_socket):
#接收浏览器发送的请求,即http请求
#GET/HTTP/1.1
request = new_client_socket.recv(1024).decode("utf-8")
request_lines = request.splitlines()
#GET /index.html HTTP/1.1
file_name = ""
ret =re.match(r"[^/]+(/[^ ]*)",request_lines[0])
if ret:
file_name = ret.group(1)
if file_name == "/":
file_name = "/index.html"
if not file_name.endswith(".py"):
try:
f = open("./html"+file_name,"rb")
except:
response = "HTTP/1.1 404 NOT FOUND\r\n"
response += "\r\n"
response += "----file not found---"
new_client_socket.send(response.encode("utf-8"))
else:
html_content = f.read()
f.close()
response = "HTTP/1.1 200 OK\r\n"
response += "\r\n"
new_client_socket.send(response.encode("utf-8"))
new_client_socket.send(html_content)
else:
environ = dict()
environ['PATH_INFO'] = file_name
body= Frame.application(environ,self.start_response)
header = "HTTP/1.1 %s \r\n" % self.status
for temp in self.headers:
header += "%s:%s\r\n" %(temp[0],temp[1] )
# 3.空一行与body隔开
header += "\r\n"
# 设置返回的浏览器的内容
response = header + body
new_client_socket.send(response.encode("utf-8"))
new_client_socket.close()
def start_response(self,status,headers):
self.status = status
self.headers = headers
def main():
wisg = WISG_Server()
wisg.run_forever()
if __name__ == "__main__":
main()
然后实现的是简易框架
def index():
return "这是主页"
def login():
return "这是登录页面"
def application(environ,start_response):
start_response("200 OK",[("Content-Type","text/html;charset=utf-8")])
file_name = environ['PATH_INFO']
if file_name =="/index.py":
return index()
elif file_name =="/login.py":
return login()
else:
return "我爱你中国。。。。"