SocketServer_Client.py

Go to the documentation of this file.

#!/usr/bin/python

## @package serverportfolio.SocketServer_Client
#  To communicate with the server.
#
#  Only use to send string data request / print answer
#  a simple TCP client using module SocketServer
#
#  Last Changed $Id: SocketServer_Client.py 9 2015-04-02 23:27:25Z michael $
#

import socket
import sys

from serverportfolio.GlobalDicts import HOST,PORT

# global to the module, because no classes
# Create a socket (SOCK_STREAM means a TCP socket)
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

def Connect():
    #print "Connect"
    
    # here needed, otherwise local variable
    global sock
    
    # Create a socket (SOCK_STREAM means a TCP socket)
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    
    # Connect to server and send data
    try:
        sock.connect((HOST, PORT))
        return True 
    except:
        return False
    
def SendData ( data ):
    
    # use global sock in namespace
    print "Data to send ", data
    sock.send(data + "\n")
    # Receive data from the server and shut down
    received = sock.recv(1024)
    sock.close()
    
    return received

## test, not used, to delete
def SendDataNoReturn ( data ):
    #print "Data to send no return", data
    sock.send(data + "\n")
    if DEBUG :
        print "data send"

####################    main function ##########
if __name__ == "__main__":

    # should make some test ??
    data = " ".join(sys.argv[1:])
    #print "data ", data

    # Create a socket (SOCK_STREAM means a TCP socket)
    # sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    # Connect to server and send data
    #try:
    #    sock.connect((HOST, PORT))
    #except:
    #    print "NOT RUNNING"
    #    sys.exit();

    status = Connect()
    #print "status connect ", status
    if status == False :
        print "NOT RUNNING"
        sys.exit();
        
    #sock.send(data + "\n")
    ## Receive data from the server and shut down
    #received = sock.recv(1024)
    #sock.close()
    received = SendData( data )

    #print "Sent:     %s" % data
    #print "Received: %s" % received
    # version for web application
    print "%s" % received