def handle_client(conn,addr):
WORDSAMPLESIZE = 25
CORRECTANSWERS = 50
ELAPSEDTIME = 60
# seed after fork
random.seed()
#the banner that the players are greeted with
BANNER = "\t\tWelcome to the jumbled word server.\n\t\t"
BANNER += "="*30
BANNER += "\n[+] Unjumble %d words sequentially within %d seconds.\n" % (CORRECTANSWERS, ELAPSEDTIME)
#print the banner
conn.send(BANNER)
dictList = []
ins = open( "words.txt", "r" )
for line in ins:
dictList.append(line.strip())
ins.close()
time.sleep(0.2)
correctCounter=0
start = int(time.time())
for x in range(0,CORRECTANSWERS):
#Send random word list range
randomList = random.sample(dictList, WORDSAMPLESIZE)
conn.send("Wordlist: %s\n" % repr(randomList))
time.sleep(0.2)
#Send random jumbled word
serverWord = randomList[random.randint(0,len(randomList)-1)]
conn.send("Jumbled word: %s\n" % jumble(serverWord))
time.sleep(0.2)
#Receive jumbled word
conn.send("Enter unjumbled word: \n")
clientWord = conn.recv(1024)
if serverWord.strip() == clientWord.strip():
correctCounter+=1
elapsed = (int(time.time()) - start)
print elapsed
if correctCounter == CORRECTANSWERS and elapsed < ELAPSEDTIME:
conn.send(helpers.load_flag())
elif correctCounter == CORRECTANSWERS:
conn.send("You unjumbled all the words but took to long")
else:
conn.send("You got %d / %d words correct" % (correctCounter,CORRECTANSWERS))
conn.close()
def handle_client(connection, addr):
reset_key(connection)
send_banner(connection)
f = conn.makefile()
#Get the next command
cmd = f.readline()
while len(cmd) <> 0:
cmd = cmd.strip()
if len(cmd) == 0:
conn.send("Invalid command. Bye\n")
break
iv = gen_iv() #Generate a new iv
#Process command
if cmd[0] == "D":
ciphertext = encrypt(iv, helpers.load_flag())
conn.send(
iv.encode("hex")[0:iv_size] + ":" + ciphertext.encode("hex") +
"\n")
#Reset the key after dumping the encrypted flag
reset_key(connection)
cmd = f.readline() #Get next command
continue
elif cmd[0] == "E":
segs = cmd.split(",")
if len(segs) <> 2 or len(segs[1]) < 1:
conn.send("Invalid use of encrypt. Usage E,<valuetoencrypt>\n")
else:
ciphertext = encrypt(iv, segs[1])
conn.send(
iv.encode("hex")[0:iv_size] + ":" +
ciphertext.encode("hex") + "\n")
cmd = f.readline() #Get next command
continue
else:
conn.send("Invalid command. Bye\n")
break
#clean up sockets
f.close()
conn.close()
def handle_client(conn, addr): #the actual AES key used 16 bytes AESKey = os.urandom(32) ctr = Counter.new(128) #create a new AES object that uses the above details CTR mode makes it a stream #cipher I believe aes = AES.new(AESKey, AES.MODE_CTR, counter=ctr) #the banner that the players are greeted with BANNER = "\t\tWelcome to the Keygen server.\n\t\t" BANNER += "="*30 BANNER += "\n[+]All access is monitored and any unauthorised access will be treated as CRIME\n" SECRET = 'Key:' + helpers.load_flag() #print the banner conn.send(BANNER) #get input from the client 2048 is arbitrary data = conn.recv(2048).strip() #while the client continues to send us stuff while len(data): data = compress(SECRET + data) #encrypt the data using AES stream mode data = encrypt(aes, data) #send the hex representation to the client conn.send(data) #try to get some more data from the client, if they want to continue, data = conn.recv(2048).strip() #client has gone conn.close()
def handle_client(connection,addr):
reset_key(connection)
send_banner(connection)
f = conn.makefile()
#Get the next command
cmd = f.readline()
while len(cmd) <> 0:
cmd = cmd.strip()
if len(cmd) == 0:
conn.send("Invalid command. Bye\n")
break
iv = gen_iv() #Generate a new iv
#Process command
if cmd[0] == "D":
ciphertext = encrypt(iv, helpers.load_flag())
conn.send(iv.encode("hex")[0:iv_size]+":"+ciphertext.encode("hex")+"\n")
#Reset the key after dumping the encrypted flag
reset_key(connection)
cmd = f.readline() #Get next command
continue
elif cmd[0] == "E":
segs = cmd.split(",")
if len(segs) <> 2 or len(segs[1]) < 1:
conn.send("Invalid use of encrypt. Usage E,<valuetoencrypt>\n")
else:
ciphertext = encrypt(iv, segs[1])
conn.send(iv.encode("hex")[0:iv_size]+":"+ciphertext.encode("hex")+"\n")
cmd = f.readline() #Get next command
continue
else:
conn.send("Invalid command. Bye\n")
break
#clean up sockets
f.close()
conn.close()
def handle_client(conn,addr):
numpy.random.seed()
NUM_LEVELS = 10
COMMAND_LIST = ['north', 'south', 'east', 'west', 'up', 'down', 'pickup', 'escape']
conn.send('Please wait while the map loads...\n')
levels = {}
gr = graph()
key_level = rand(NUM_LEVELS-3,NUM_LEVELS-1)
door_level = 0
for i in range(NUM_LEVELS):
levels[i] = maze(25, 25, 1, 1)
add_graph(gr, levels[i], i)
if i > 0:
(x_d,y_d) = setnode(levels[i], M_DOWN)
down = get_id(x_d, y_d, i)
gr.add_edge((up, down))
if i < NUM_LEVELS-1:
(x_u,y_u) = setnode(levels[i], M_UP)
up = get_id(x_u, y_u, i)
if i == key_level:
(x, y) = setnode(levels[i], M_KEY)
key = get_id(x, y, i)
if i == door_level:
(x, y) = setnode(levels[i], M_DOOR)
door = get_id(x, y, i)
st,weights = shortest_path(gr, key)
distance = weights[door]
collapse = distance + 5
start_z = NUM_LEVELS/2
(start_x, start_y) = emptynode(levels[start_z])
c_x = start_x
c_y = start_y
c_z = start_z
player_key = False
conn.send('Map loaded.\n')
while True:
node = levels[c_z][c_y,c_x]
if node == M_UP:
conn.send('There are stairs heading upward.\n')
if node == M_DOWN:
conn.send('There are stairs heading downward.\n')
if node == M_KEY:
conn.send('There is a key here.\n')
if node == M_DOOR:
conn.send('There is a locked door here.\n')
data = conn.recv(1024).strip()
commands = data.split('\n')
for command in commands:
if not command in COMMAND_LIST:
conn.send('Invalid command: %s. Possible commands include are: %s\n' % (command, COMMAND_LIST))
continue
if command == 'pickup':
if player_key:
conn.send('You already have the key.\n')
else:
if checknode(levels[c_z], c_x, c_y, M_KEY):
conn.send('You picked up the key.\n')
conn.send('The ceiling starts to collapse.\n')
player_key = True
else:
conn.send('No key here.\n')
elif command == 'escape':
if checknode(levels[c_z], c_x, c_y, M_DOOR):
if player_key:
conn.send('YOU ESCAPED!\n')
conn.send('Key: %s' % helpers.load_flag())
else:
conn.send('You need the key to unlock the door.\n')
else:
conn.send('No door here.\n')
elif command == 'north':
if checknode(levels[c_z], c_x, c_y-1, M_WALL):
conn.send('There is a wall there.\n')
else:
conn.send('You moved north.\n')
c_y = c_y-1
elif command == 'south':
if checknode(levels[c_z], c_x, c_y+1, M_WALL):
conn.send('There is a wall there.\n')
else:
conn.send('You moved south.\n')
c_y = c_y+1
elif command == 'west':
if checknode(levels[c_z], c_x-1, c_y, M_WALL):
conn.send('There is a wall there.\n')
else:
conn.send('You moved west.\n')
c_x = c_x-1
elif command == 'east':
if checknode(levels[c_z], c_x+1, c_y, M_WALL):
conn.send('There is a wall there.\n')
else:
conn.send('You moved east.\n')
c_x = c_x+1
elif command == 'up':
if checknode(levels[c_z], c_x, c_y, M_UP):
conn.send('You moved upstairs.\n')
c_z = c_z + 1
c_x, c_y = findnode(levels[c_z], M_DOWN)
else:
conn.send('No stairs upward here.\n')
elif command == 'down':
if checknode(levels[c_z], c_x, c_y, M_DOWN):
conn.send('You moved downstairs.\n')
c_z = c_z - 1
c_x, c_y = findnode(levels[c_z], M_UP)
else:
conn.send('No stairs downward here.\n')
if player_key:
collapse -= 1
conn.send('Get out of here!\n')
if collapse == 10:
conn.send('The ceiling is about to collapse!\n')
if collapse == 50:
conn.send('Large pieces of debris fall from the ceiling.\n')
if collapse == 100:
conn.send('Hurry!\n')
if collapse == 0:
conn.send('The ceiling collapses and crushes you. You are dead.\n')
conn.send('You are dead.\n')
return
def handle_client(conn, addr):
numpy.random.seed()
NUM_LEVELS = 10
COMMAND_LIST = [
'north', 'south', 'east', 'west', 'up', 'down', 'pickup', 'escape'
]
conn.send('Please wait while the map loads...\n')
levels = {}
gr = graph()
key_level = rand(NUM_LEVELS - 3, NUM_LEVELS - 1)
door_level = 0
for i in range(NUM_LEVELS):
levels[i] = maze(25, 25, 1, 1)
add_graph(gr, levels[i], i)
if i > 0:
(x_d, y_d) = setnode(levels[i], M_DOWN)
down = get_id(x_d, y_d, i)
gr.add_edge((up, down))
if i < NUM_LEVELS - 1:
(x_u, y_u) = setnode(levels[i], M_UP)
up = get_id(x_u, y_u, i)
if i == key_level:
(x, y) = setnode(levels[i], M_KEY)
key = get_id(x, y, i)
if i == door_level:
(x, y) = setnode(levels[i], M_DOOR)
door = get_id(x, y, i)
st, weights = shortest_path(gr, key)
distance = weights[door]
collapse = distance + 5
start_z = NUM_LEVELS / 2
(start_x, start_y) = emptynode(levels[start_z])
c_x = start_x
c_y = start_y
c_z = start_z
player_key = False
conn.send('Map loaded.\n')
while True:
node = levels[c_z][c_y, c_x]
if node == M_UP:
conn.send('There are stairs heading upward.\n')
if node == M_DOWN:
conn.send('There are stairs heading downward.\n')
if node == M_KEY:
conn.send('There is a key here.\n')
if node == M_DOOR:
conn.send('There is a locked door here.\n')
data = conn.recv(1024).strip()
commands = data.split('\n')
for command in commands:
if not command in COMMAND_LIST:
conn.send(
'Invalid command: %s. Possible commands include are: %s\n'
% (command, COMMAND_LIST))
continue
if command == 'pickup':
if player_key:
conn.send('You already have the key.\n')
else:
if checknode(levels[c_z], c_x, c_y, M_KEY):
conn.send('You picked up the key.\n')
conn.send('The ceiling starts to collapse.\n')
player_key = True
else:
conn.send('No key here.\n')
elif command == 'escape':
if checknode(levels[c_z], c_x, c_y, M_DOOR):
if player_key:
conn.send('YOU ESCAPED!\n')
conn.send('Key: %s' % helpers.load_flag())
else:
conn.send('You need the key to unlock the door.\n')
else:
conn.send('No door here.\n')
elif command == 'north':
if checknode(levels[c_z], c_x, c_y - 1, M_WALL):
conn.send('There is a wall there.\n')
else:
conn.send('You moved north.\n')
c_y = c_y - 1
elif command == 'south':
if checknode(levels[c_z], c_x, c_y + 1, M_WALL):
conn.send('There is a wall there.\n')
else:
conn.send('You moved south.\n')
c_y = c_y + 1
elif command == 'west':
if checknode(levels[c_z], c_x - 1, c_y, M_WALL):
conn.send('There is a wall there.\n')
else:
conn.send('You moved west.\n')
c_x = c_x - 1
elif command == 'east':
if checknode(levels[c_z], c_x + 1, c_y, M_WALL):
conn.send('There is a wall there.\n')
else:
conn.send('You moved east.\n')
c_x = c_x + 1
elif command == 'up':
if checknode(levels[c_z], c_x, c_y, M_UP):
conn.send('You moved upstairs.\n')
c_z = c_z + 1
c_x, c_y = findnode(levels[c_z], M_DOWN)
else:
conn.send('No stairs upward here.\n')
elif command == 'down':
if checknode(levels[c_z], c_x, c_y, M_DOWN):
conn.send('You moved downstairs.\n')
c_z = c_z - 1
c_x, c_y = findnode(levels[c_z], M_UP)
else:
conn.send('No stairs downward here.\n')
if player_key:
collapse -= 1
conn.send('Get out of here!\n')
if collapse == 10:
conn.send('The ceiling is about to collapse!\n')
if collapse == 50:
conn.send('Large pieces of debris fall from the ceiling.\n')
if collapse == 100:
conn.send('Hurry!\n')
if collapse == 0:
conn.send(
'The ceiling collapses and crushes you. You are dead.\n')
conn.send('You are dead.\n')
return