Pythonweb Server Programming (iii)

Web static server-display required pages

#Coding=utf-8ImportSocket fromMultiprocessingImportProcessImportRedefhandleclient (clientsocket):'Service for a client with a new process'RecvData= CLIENTSOCKET.RECV (2014) Requestheaderlines=Recvdata.splitlines () forLineinchRequestheaderlines:Print(line) Httprequestmethodline=Requestheaderlines[0] GetFileName= Re.match ("[^/]+(/[^ ]*)", Httprequestmethodline). Group (1)    Print("file name is ===>%s"%getfilename)#For Test    ifGetFileName = ='/': GetFileName= DocumentRoot +"/index.html"    Else: GetFileName= DocumentRoot +GetFileNamePrint("file name is ===2>%s"%getfilename)#For Test    Try: F=Open (GetFileName)exceptIoerror:responseheaderlines="http/1.1 404 Not found\r\n"Responseheaderlines+="\ r \ n"Responsebody="====sorry, File not found===="    Else: Responseheaderlines="http/1.1 ok\r\n"Responseheaderlines+="\ r \ n"Responsebody=F.read () f.close ( )finally: Response= Responseheaderlines +responsebody clientsocket.send (response) Clientsocket.close ()defMain ():'as the main control entrance of the program'ServerSocket=Socket.socket (socket.af_inet, socket. SOCK_STREAM) serversocket.setsockopt (socket. Sol_socket, SOCKET. SO_REUSEADDR,1) Serversocket.bind ("", 7788)) Serversocket.listen (10)     whiletrue:clientsocket,clientaddr=serversocket.accept () clientp= Process (target = handleclient, args =(Clientsocket,)) Clientp.start () Clientsocket.close ( )#Configure the server hereDocumentRoot ='./html'if __name__=='__main__': Main ()

Web static server-use class

#Coding=utf-8ImportSocketImportSYS fromMultiprocessingImportProcessImportReclassWsgiserver (object): AddressFamily=socket.af_inet SocketType=socket. Sock_stream requestqueuesize= 5def __init__(self, server_address):#Create a TCP socketSelf.listensocket =Socket.socket (Self.addressfamily,self.sockettype)#allows reuse of the last socket bound PortSelf.listenSocket.setsockopt (socket. Sol_socket, SOCKET. SO_REUSEADDR, 1)        #bindingSelf.listenSocket.bind (server_address)#become passive, and set the length of the queueSelf.listenSocket.listen (self.requestqueuesize)defServeforever (self):'looping the Web server, waiting for the client to link and servicing the client'         whileTrue:#waiting for new clients to arriveSelf.clientsocket, client_address =self.listenSocket.accept ()#Method 2, multi-process server, concurrent server on multiple clientsNewclientprocess = Process (target =self.handlerequest) Newclientprocess.start ()#because this socket +1 is created in a new process, it needs to be subtracted in the main process, called once closeself.clientSocket.close ()defHandleRequest (self):'Service for a client with a new process'RecvData= SELF.CLIENTSOCKET.RECV (2014) Requestheaderlines=Recvdata.splitlines () forLineinchRequestheaderlines:Print(line) Httprequestmethodline=Requestheaderlines[0] GetFileName= Re.match ("[^/]+(/[^ ]*)", Httprequestmethodline). Group (1)        Print("file name is ===>%s"%getfilename)#For Test        ifGetFileName = ='/': GetFileName= DocumentRoot +"/index.html"        Else: GetFileName= DocumentRoot +GetFileNamePrint("file name is ===2>%s"%getfilename)#For Test        Try: F=Open (GetFileName)exceptIoerror:responseheaderlines="http/1.1 404 Not found\r\n"Responseheaderlines+="\ r \ n"Responsebody="====sorry, File not found===="        Else: Responseheaderlines="http/1.1 ok\r\n"Responseheaderlines+="\ r \ n"Responsebody=F.read () f.close ( )finally: Response= Responseheaderlines +responsebody self.clientSocket.send (response) Self.clientSocket.close ()#set the port of the serverServeraddr = (HOST, PORT) ="', 8888#path to set Server service static resourcesDocumentRoot ='./html'defMakeserver (SERVERADDR): Server=wsgiserver (SERVERADDR)returnServerdefMain (): httpd=makeserver (SERVERADDR)Print('Web server:serving HTTP on port%d ... \ n'%PORT) httpd.serveforever ()if __name__=='__main__': Main ()

Pythonweb Server Programming (iii)