changed host.py to be a super basic server that just responds with an echo

pypong/networking/host.py

@@ -1,36 +1,25 @@
-import psutil
+import socket
 
+LOCAL_IP = '127.0.0.1'
+SERVER_PORT = 29987
+SERVER_BUFFER = 1024
 
-class InterfaceInfo:
-    """
-    Class used for storing interface information to make it easier to use
-    """
-    def __init__(self, interface_name, address, subnet_mask):
-        self.interface_name = interface_name
-        self.address = address
-        self.subnet_mask = subnet_mask
+udp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+udp_server_socket.bind((LOCAL_IP, SERVER_PORT))
 
-    def __str__(self):
-        return '(Interface:{0}, Address:{1}, Subnet Mask:{2})'.format(self.interface_name,
-                                                                      self.address, self.subnet_mask)
+waiting_for_connection = True
 
-    def __repr__(self):
-        return '(Interface:{0}, Address:{1}, Subnet Mask:{2})'.format(self.interface_name,
-                                                                      self.address, self.subnet_mask)
+while waiting_for_connection:
+    received = udp_server_socket.recvfrom(SERVER_BUFFER)
+    message = received[0]
+    address = received[1]
 
+    decoded_message = message.decode('UTF-8')
+    if decoded_message.split(';')[0] != 'PYPONGREQ':
+        message = 'PYPONGRST;ERROR:INVALID HEADER'
+        udp_server_socket.sendto(message.encode('UTF-8'), address)
+    else:
+        message = 'PYPONGRST;ECHO:{0}'.format(decoded_message)
+        udp_server_socket.sendto(message.encode('UTF-8'), address)
 
-def main():
-    raw_interface_data = psutil.net_if_addrs()
-    interface_data = []
-
-    # Extract needed information from psutil and put it into a InterfaceInfo object
-    for interface in raw_interface_data:
-        address = (raw_interface_data.get(interface)[0]).address
-        subnet_mask = (raw_interface_data.get(interface)[0]).netmask
-        interface_data.append(InterfaceInfo(interface, address, subnet_mask))
-
-    print(interface_data)
-
-
-if __name__ == '__main__':
-    main()
+udp_server_socket.close()