def test_IdentifyValidCheckSum(self):
validInput = [' _ _ _ _ _ _ _ _ ',
' _||_||_ |_||_| _||_||_ |_ ',
' _| | _||_||_||_ |_||_| _|',
' ']
testEntry = Entry(validInput)
self.assertTrue(Checksum.isValid(testEntry))
def test_IdentifyInvalidCheckSumDueToIllegibility(self):
validInput = [' _ _ _ _ _ _ ',
'|_ |_ _| _| ||_||_||_ ',
'|_||_| | _| | | | _| _|',
' ']
testEntry = Entry(validInput)
self.assertFalse(Checksum.isValid(testEntry))
def BuildResults(inputOCR):
'''Build final result string to be written out to the output file
keyword arguments:
inputOCR: Instance of Entry Class
returns string
'''
result = inputOCR.ToString()
if inputOCR.illegible:
result += ' ILL'
else:
if not (Checksum.isValid(inputOCR)):
result += ' ERR'
return result
def send_file(connection, client_address):
checksum = Checksum.generate_digest()
print("sending file", f"{FILENAME}".encode(), "with filesize", FILESIZE,
"kb", "to client", client_address)
print("\n")
with open(FILENAME, "rb") as f:
# read the bytes from the file
bytes_read = f.read(BUFFER_SIZE)
try:
# we use sendall to assure transimission in
# busy networks
connection.sendall(bytes_read)
except socket.error:
print("Error sending file")
try:
connection.send(b"checksum=" + str.encode(checksum))
except socket.error:
print("Error sending checksum")
#Pass Server ID string from command line argument
SERVER_ID = "1"
if ((len(sys.argv) - 1) >= 1):
SERVER_ID = sys.argv[1]
#Transfer socket
#Determine correct host IP from adapter
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(("8.8.8.8", 80))
IP = s.getsockname()[0]
s.close()
TCP_PORT = 3000
#IP Multicast group with UDP socket port
MULTICAST_GROUP = ("224.0.0.0", 10000)
#Use path of FritzBox NAS space
FILENAME = Path("Y:/Gastbereich/file_to_transmit.txt")
Checksum = Checksum(FILENAME)
Multicast = Multicast(SERVER_ID, IP)
# get the file size
FILESIZE = os.path.getsize(FILENAME)
#Receive buffer size
BUFFER_SIZE = 1024
#Server Thread
class Server(multiprocessing.Process):
def __init__(self, connection, received_data, client_address):
super(Server, self).__init__()
self.connection = connection
self.received_data = received_data
self.msg = self.received_data.decode()
self.client_address = client_address
from Checksum import Checksum
from DragonCurve import DragonCurveUpTo
#10000001111001111110000
#10000011110010000111110
print(DragonCurveUpTo('10000',20))
print(Checksum(DragonCurveUpTo('10000',20)[:20]))
print()
print(Checksum(DragonCurveUpTo('10011111011011001',272)[:272]))
print(Checksum(DragonCurveUpTo('10011111011011001',35651584)[:35651584]))
