"""
/etc/python3
@File     : IO_HTTP.py
@Time     : 2020/7/18 下午3:26
@Author   : wangyongqi
@Email    : [email protected]
@SOftware : PyCharm 
"""

from  socket import *
from  select import *
import re


class WebServer:

    def __init__(self,host='0.0.0.0',port=8000,html=None):
        self.host=host
        self.port
 
=port
        self.html=html
        #做ＩＯ多路複用的併發模型
        self.__rlist=[]
        self.__wlist=[]
        self.__xlist=[]
        self.create_socket()
        self.bind()

    def create_socket(self):
        self.sock=socket()
        self.sock.setblocking(False)

    def bind(self):
        self.address
 
=(self.host,self.port)
        self.sock.bind(self.address)


    def start(self):
        self.sock.listen(5)
        print('Listen the port %d'%self.port)
        self.__rlist.append(self.sock)
        while True:
            rs,ws,xs=select(self.__rlist,self.__wlist,self.__xlist)
            for r in
 
 rs:
                if r is self.sock:
                    connfd,addr=self.sock.accept()
                    connfd.setblocking(False)
                    self.__rlist.append(connfd)
                else:
                    self.handle(r)


    #處理客戶請求
    def handle(self,connfd):
        request=connfd.recv(1024*1024).decode('utf8')
        pattern='[A-Z]+\s+(?P<info>/\S*)'
        result=re.match(pattern,request)
        if result:
            info=result.group('info')

            self.send_requst(connfd,info)

        else:
            #斷開客戶端
            self.__rlist.remove(connfd)
            connfd.close()


    def send_requst(self,connfd,info):
        try:
            html = open(self.html+info,'rb')
            print(html)
        except  :
            hsstml = """/HTTP/1.1 200 ok
            Content-tpe text/html
            
            404
            """
            connfd.send(hsstml.encode())
            self.__rlist.remove(connfd)
        else:
            html=html.read()

            hsstml = "/HTTP/1.1 200 ok\r\n"
            hsstml+="Content-tpe text/html\r\n"
            hsstml+="Content-Length:%d\r\n"%len(html)
            hsstml+='\r\n'
            hsstml=hsstml.encode()
            hsstml+=html
            connfd.send(hsstml)
            self.__rlist.remove(connfd)
            connfd.close()
        # html=html.read()

        # url=info[1:]
        # if url=='':
        #     hsstml = """/HTTP/1.1 200 ok
        #             Content-tpe text/html
        #
        #             404
        #             """
        #     connfd.send(hsstml.encode())
        #     self.__rlist.remove(connfd)
        #
        # else:
        #     try:
        #         html=open(url)
        #     except FileNotFoundError:
        #         hsstml = """/HTTP/1.1 200 ok
        #                             Content-tpe text/html
        #
        #                             404
        #                             """
        #         connfd.send(hsstml.encode())
        #         self.__rlist.remove(connfd)
        #     else:
        #         html=html.read()
        #         hsstml = f"""/HTTP/1.1 200 ok
        #         Content-tpe text/html
        #
        #         {html}
        #         """
        #         connfd.send(hsstml.encode())
        #         self.__rlist.remove(connfd)


if __name__ == '__main__':
    """
    1.使用流程
    2.那些量需要使用者決定，怎麼傳入
         那組網頁　服務端地址
    """

httpd=WebServer(host='0.0.0.0',port=8578,html='static')
httpd.start()