Use new knownhost files

examples/16_docker_network_python/config/config.json

@@ -33,7 +33,7 @@
                     "container_name" : "client",
                     // It can be important to ensure your container's start in the correct order.
                     // In this example, we want the server to start before the client, so we add a sleep command.
-                    "commands" : ["sleep 1", "python3 client.py client 0"],
+                    "commands" : ["sleep 2", "python3 client.py client 0"],
                     "outgoing_connections" : ["server"]
                 },
                 {
@@ -74,7 +74,7 @@
                 },
                 {
                     "container_name" : "client",
-                    "commands" : ["sleep 1", "python3 client.py client 1"],
+                    "commands" : ["sleep 2", "python3 client.py client 1"],
                     "outgoing_connections" : ["server"]
                 },
                 {
@@ -112,7 +112,7 @@
                 },
                 {
                     "container_name" : "client",
-                    "commands" : ["sleep 1", "python3 client.py client 2"],
+                    "commands" : ["sleep 2", "python3 client.py client 2"],
                     "outgoing_connections" : ["server"]
                 },
                 {
@@ -150,7 +150,7 @@
                 },
                 {
                     "container_name" : "client",
-                    "commands" : ["sleep 1", "python3 client.py client 3"],
+                    "commands" : ["sleep 2", "python3 client.py client 3"],
                     "outgoing_connections" : ["server"]
                 },
                 {
@@ -189,7 +189,7 @@
                 },
                 {
                     "container_name" : "client",
-                    "commands" : ["sleep 1", "python3 client.py client 4 udp_enabled"],
+                    "commands" : ["sleep 2", "python3 client.py client 4 udp_enabled"],
                     "outgoing_connections" : ["server"]
                 },
                 {

examples/16_docker_network_python/config/test_input/client.py

@@ -7,8 +7,8 @@
 import traceback
 
 MY_NAME = ""
-KNOWN_HOSTS_TCP = 'knownhosts_tcp.csv'
-KNOWN_HOSTS_UDP = 'knownhosts_udp.csv'
+KNOWN_HOSTS_TCP = 'knownhosts_tcp.txt'
+KNOWN_HOSTS_UDP = 'knownhosts_udp.txt'
 USE_UDP = False
 
 
@@ -42,29 +42,35 @@ def read_known_hosts_csv():
   global server_name
   global incoming_tcp_port, outgoing_tcp_port
   global incoming_udp_port, outgoing_udp_port
-  with open(KNOWN_HOSTS_TCP) as csv_file:
-    csv_reader = csv.reader(csv_file, delimiter=',')
-    for sender, recv, port in csv_reader:
+
+  with open(KNOWN_HOSTS_TCP) as infile:
+    content = infile.readlines()    
+
+  for line in content:
+    sender, recv, port = line.split()
+    if sender == MY_NAME:
+      outgoing_tcp_port =port
+      server_name = recv
+    elif recv == MY_NAME:
+      incoming_tcp_port = port
+      server_name = sender
+    else:
+      continue
+
+  if USE_UDP:
+    with open(KNOWN_HOSTS_UDP) as infile:
+      content = infile.readlines()
+
+    for line in content:
+      sender, recv, port = line.split()
       if sender == MY_NAME:
-        outgoing_tcp_port =port
+        outgoing_udp_port =port
         server_name = recv
       elif recv == MY_NAME:
-        incoming_tcp_port = port
+        incoming_udp_port = port
         server_name = sender
       else:
         continue
-  if USE_UDP:
-    with open(KNOWN_HOSTS_UDP) as csv_file:
-      csv_reader = csv.reader(csv_file, delimiter=',')
-      for sender, recv, port in csv_reader:
-        if sender == MY_NAME:
-          outgoing_udp_port =port
-          server_name = recv
-        elif recv == MY_NAME:
-          incoming_udp_port = port
-          server_name = sender
-        else:
-          continue
 
 def initialize_incoming_connections():
   global incoming_tcp_socket, incoming_udp_socket

examples/16_docker_network_python/config/test_input/router.py

@@ -57,26 +57,28 @@ def build_switchboard():
   try:
     #Read the known_hosts.csv see the top of the file for the specification
     for connection_type in ["tcp", "udp"]:
-      filename = 'knownhosts_{0}.csv'.format(connection_type)
+      filename = 'knownhosts_{0}.txt'.format(connection_type)
       with open(filename, 'r') as infile:
-        reader = csv.reader(infile)
-        for sender, recipient, port in reader:
-          #Strip away trailing or leading whitespace
-          sender = '{0}_Actual'.format(sender.strip())
-          recipient = '{0}_Actual'.format(recipient.strip())
-          port = port.strip()
-
-          if not port in PORTS:
-            PORTS.append(port)
-          else:
-            raise SystemExit("ERROR: port {0} was encountered twice. Please keep all ports independant.".format(port))
-
-          SWITCHBOARD[port] = {}
-          SWITCHBOARD[port]['connection_type'] = connection_type
-          SWITCHBOARD[port]['sender'] = sender
-          SWITCHBOARD[port]['recipient'] = recipient
-          SWITCHBOARD[port]['connected'] = False
-          SWITCHBOARD[port]['connection'] = None
+        content = infile.readlines()    
+
+      for line in content:
+        sender, recipient, port = line.split()
+        #Strip away trailing or leading whitespace
+        sender = '{0}_Actual'.format(sender.strip())
+        recipient = '{0}_Actual'.format(recipient.strip())
+        port = port.strip()
+
+        if not port in PORTS:
+          PORTS.append(port)
+        else:
+          raise SystemExit("ERROR: port {0} was encountered twice. Please keep all ports independant.".format(port))
+
+        SWITCHBOARD[port] = {}
+        SWITCHBOARD[port]['connection_type'] = connection_type
+        SWITCHBOARD[port]['sender'] = sender
+        SWITCHBOARD[port]['recipient'] = recipient
+        SWITCHBOARD[port]['connected'] = False
+        SWITCHBOARD[port]['connection'] = None
 
 
   except IOError as e:

examples/16_docker_network_python/submissions/correct/server.py

@@ -1,13 +1,12 @@
 #!/usr/bin/env python3
 import socket
 import os
-import csv
 import sys
 import time
 import traceback
 
 MY_NAME = ""
-KNOWN_HOSTS_CSV = 'knownhosts_tcp.csv'
+KNOWN_HOSTS_TCP = 'knownhosts_tcp.txt'
 
 # This tutorial is kept simple intentionally rather than using data structures or
 # dictionaries to store these values.
@@ -19,28 +18,30 @@
 open_connection = None
 
 def init():
-  read_known_hosts_csv()
+  read_known_hosts_tcp()
   initialize_incoming_connections()
 
 
 #knownhosts_tcp.csv and knownhosts_udp.csv are of the form
 #sender,recipient,port_number
 # such that sender sends all communications to recipient via port_number. 
-def read_known_hosts_csv():
+def read_known_hosts_tcp():
   global client_name
   global incoming_port
   global outgoing_port
-  with open(KNOWN_HOSTS_CSV) as csv_file:
-    csv_reader = csv.reader(csv_file, delimiter=',')
-    for sender, recv, port in csv_reader:
-      if sender == MY_NAME:
-        outgoing_port =port
-        client_name = recv
-      elif recv == MY_NAME:
-        incoming_port = port
-        client_name = sender
-      else:
-        continue
+  with open(KNOWN_HOSTS_TCP) as infile:
+    content = infile.readlines()
+
+  for line in content:
+    sender, recv, port = line.split()
+    if sender == MY_NAME:
+      outgoing_port =port
+      client_name = recv
+    elif recv == MY_NAME:
+      incoming_port = port
+      client_name = sender
+    else:
+      continue
 
 def initialize_incoming_connections():
     global incoming_socket

examples/16_docker_network_python/submissions/incorrect/server.py

@@ -1,13 +1,12 @@
 #!/usr/bin/env python3
 import socket
 import os
-import csv
 import sys
 import time
 import traceback
 
 MY_NAME = ""
-KNOWN_HOSTS_CSV = 'knownhosts_tcp.csv'
+KNOWN_HOSTS_TCP = 'knownhosts_tcp.txt'
 
 # This tutorial is kept simple intentionally rather than using data structures or
 # dictionaries to store these values.
@@ -19,28 +18,30 @@
 open_connection = None
 
 def init():
-  read_known_hosts_csv()
+  read_known_hosts_tcp()
   initialize_incoming_connections()
 
 
 #knownhosts_tcp.csv and knownhosts_udp.csv are of the form
 #sender,recipient,port_number
 # such that sender sends all communications to recipient via port_number. 
-def read_known_hosts_csv():
+def read_known_hosts_tcp():
   global client_name
   global incoming_port
   global outgoing_port
-  with open(KNOWN_HOSTS_CSV) as csv_file:
-    csv_reader = csv.reader(csv_file, delimiter=',')
-    for sender, recv, port in csv_reader:
-      if sender == MY_NAME:
-        outgoing_port =port
-        client_name = recv
-      elif recv == MY_NAME:
-        incoming_port = port
-        client_name = sender
-      else:
-        continue
+  with open(KNOWN_HOSTS_TCP) as infile:
+    content = infile.readlines()
+
+  for line in content:
+    sender, recv, port = line.split()
+    if sender == MY_NAME:
+      outgoing_port =port
+      client_name = recv
+    elif recv == MY_NAME:
+      incoming_port = port
+      client_name = sender
+    else:
+      continue
 
 def initialize_incoming_connections():
     global incoming_socket

examples/16_docker_network_python/submissions/infinite_response/server.py

@@ -1,13 +1,12 @@
 #!/usr/bin/env python3
 import socket
 import os
-import csv
 import sys
 import time
 import traceback
 
 MY_NAME = ""
-KNOWN_HOSTS_CSV = 'knownhosts_tcp.csv'
+KNOWN_HOSTS_TCP = 'knownhosts_tcp.txt'
 
 # This tutorial is kept simple intentionally rather than using data structures or
 # dictionaries to store these values.
@@ -19,27 +18,30 @@
 open_connection = None
 
 def init():
-  read_known_hosts_csv()
+  read_known_hosts_tcp()
   initialize_incoming_connections()
 
+
 #knownhosts_tcp.csv and knownhosts_udp.csv are of the form
 #sender,recipient,port_number
 # such that sender sends all communications to recipient via port_number. 
-def read_known_hosts_csv():
+def read_known_hosts_tcp():
   global client_name
   global incoming_port
   global outgoing_port
-  with open(KNOWN_HOSTS_CSV) as csv_file:
-    csv_reader = csv.reader(csv_file, delimiter=',')
-    for sender, recv, port in csv_reader:
-      if sender == MY_NAME:
-        outgoing_port =port
-        client_name = recv
-      elif recv == MY_NAME:
-        incoming_port = port
-        client_name = sender
-      else:
-        continue
+  with open(KNOWN_HOSTS_TCP) as infile:
+    content = infile.readlines()
+
+  for line in content:
+    sender, recv, port = line.split()
+    if sender == MY_NAME:
+      outgoing_port =port
+      client_name = recv
+    elif recv == MY_NAME:
+      incoming_port = port
+      client_name = sender
+    else:
+      continue
 
 def initialize_incoming_connections():
     global incoming_socket

examples/16_docker_network_python/submissions/large_response/server.py

@@ -1,13 +1,12 @@
 #!/usr/bin/env python3
 import socket
 import os
-import csv
 import sys
 import time
 import traceback
 
 MY_NAME = ""
-KNOWN_HOSTS_CSV = 'knownhosts_tcp.csv'
+KNOWN_HOSTS_TCP = 'knownhosts_tcp.txt'
 
 # This tutorial is kept simple intentionally rather than using data structures or
 # dictionaries to store these values.
@@ -19,28 +18,30 @@
 open_connection = None
 
 def init():
-  read_known_hosts_csv()
+  read_known_hosts_tcp()
   initialize_incoming_connections()
 
 
 #knownhosts_tcp.csv and knownhosts_udp.csv are of the form
 #sender,recipient,port_number
 # such that sender sends all communications to recipient via port_number. 
-def read_known_hosts_csv():
+def read_known_hosts_tcp():
   global client_name
   global incoming_port
   global outgoing_port
-  with open(KNOWN_HOSTS_CSV) as csv_file:
-    csv_reader = csv.reader(csv_file, delimiter=',')
-    for sender, recv, port in csv_reader:
-      if sender == MY_NAME:
-        outgoing_port =port
-        client_name = recv
-      elif recv == MY_NAME:
-        incoming_port = port
-        client_name = sender
-      else:
-        continue
+  with open(KNOWN_HOSTS_TCP) as infile:
+    content = infile.readlines()
+
+  for line in content:
+    sender, recv, port = line.split()
+    if sender == MY_NAME:
+      outgoing_port =port
+      client_name = recv
+    elif recv == MY_NAME:
+      incoming_port = port
+      client_name = sender
+    else:
+      continue
 
 def initialize_incoming_connections():
     global incoming_socket