import sys
import hashlib
import getpass
def main(argv):
if len(argv) != 1:
sys.exit('Usage: user_pass.py <file_name>')
print '\nUser & Password Authentication Program v.01\n'
try:
file_conn = open(sys.argv[1])
user_name = file_conn.readline()[:-1]
password = file_conn.readline()[:-1]
file_conn.close()
except:
sys.exit('There was a problem reading the file!')
pass_try = 0
x = 3
if raw_input('Please Enter User Name: ') != user_name:
sys.exit('Incorrect User Name, terminating... \n')
while pass_try < x:
user_input = hashlib.sha224(getpass.getpass('Please Enter Password: ')).hexdigest()
if user_input != password:
pass_try += 1
print 'Incorrect Password, ' + str(x-pass_try) + ' more attemts left\n'
else:
pass_try = x+1
if pass_try == x and user_input != password:
sys.exit('Incorrect Password, terminating... \n')
print 'User is logged in!\n'
if __name__ == "__main__":
main(sys.argv[1:])
